ANR Management(eRAN8.1_02).pdf

eRAN

ANR Management FeatureParameter Description

Issue 02

Date 2015-06-30

HUAWEI TECHNOLOGIES CO., LTD.

Copyright © Huawei Technologies Co., Ltd. 2015. All rights reserved.No part of this document may be reproduced or transmitted in any form or by any means without prior writtenconsent of Huawei Technologies Co., Ltd. Trademarks and Permissions

and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.All other trademarks and trade names mentioned in this document are the property of their respectiveholders. NoticeThe purchased products, services and features are stipulated by the contract made between Huawei and thecustomer. All or part of the products, services and features described in this document may not be within thepurchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information,and recommendations in this document are provided "AS IS" without warranties, guarantees orrepresentations of any kind, either express or implied.

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Huawei Technologies Co., Ltd.Address: Huawei Industrial Base

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Website: http://www.huawei.com

Email: [email protected]

Issue 02 (2015-06-30) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.

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mailto:[email protected]

Contents

1 About This Document.................................................................................................................. 11.1 Scope.............................................................................................................................................................................. 11.2 Intended Audience..........................................................................................................................................................21.3 Change History............................................................................................................................................................... 21.4 Differences Between eNodeB Types.............................................................................................................................. 8

2 Overview....................................................................................................................................... 102.1 Introduction.................................................................................................................................................................. 102.2 Benefits.........................................................................................................................................................................102.3 Architecture.................................................................................................................................................................. 10

3 Concepts Related to ANR.......................................................................................................... 123.1 NCL.............................................................................................................................................................................. 133.2 NRT.............................................................................................................................................................................. 133.3 Blacklists and Whitelist................................................................................................................................................ 153.4 ANR Capabilities of UEs............................................................................................................................................. 15

4 Intra- and Inter-RAT ANR.........................................................................................................194.1 Overview...................................................................................................................................................................... 204.1.1 NCL/NRT Control Mode...........................................................................................................................................204.1.2 NRT Optimization Mode........................................................................................................................................... 214.2 Intra- and Inter-RAT Event-triggered ANR..................................................................................................................234.2.1 Automatic Detection of Missing Neighboring Cells................................................................................................. 234.2.2 Automatic Maintenance of NCLs and NRTs............................................................................................................. 294.2.2.1 Adding an NCL/NRT Entry....................................................................................................................................294.2.2.2 Modifying an NCL Entry....................................................................................................................................... 304.2.2.3 Removing an NCL/NRT Entry............................................................................................................................... 304.2.3 Detection of Abnormal Intra-RAT Neighboring Cell Coverage................................................................................364.3 Intra- and Inter-RAT Fast ANR.................................................................................................................................... 374.3.1 Automatic Detection of Missing Neighboring Cells................................................................................................. 384.3.2 Automatic Maintenance of NCLs and NRTs............................................................................................................. 414.3.2.1 Adding an NCL/NRT Entry....................................................................................................................................414.3.2.2 Modifying an NCL Entry....................................................................................................................................... 434.4 Intra-RAT Backward ANR........................................................................................................................................... 434.4.1 Automatic Detection of Missing Neighboring Cells................................................................................................. 43

eRANANR Management Feature Parameter Description Contents


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4.4.2 Automatic Maintenance of NCLs and NRTs............................................................................................................. 444.5 Automatic Optimization of Neighbor Relationship Attributes.....................................................................................454.5.1 Automatic Optimization of Neighbor Relationships with Cells of Abnormal Success Rates of Intra-RATHandovers...........................................................................................................................................................................454.5.2 Neighboring Cell Classification................................................................................................................................ 464.5.3 Automatic Optimization of Blind Handover Priorities of Inter-RAT Neighbor Relationships................................. 494.5.3.1 Overview................................................................................................................................................................ 494.5.3.2 Collecting Inter-RAT Handover Statistics.............................................................................................................. 504.5.3.3 Generating Optimization Advice for Blind Handover Priorities............................................................................514.5.4 Automatic Optimization of Measurement Priorities of Inter-RAT Neighboring Cells............................................. 524.6 PLMN ID Management................................................................................................................................................ 52

5 ANR with Shared Cells.............................................................................................................. 555.1 Intra-RAT ANR with Shared Cells...............................................................................................................................565.1.1 Shared E-UTRAN Cell Broadcasting Its PLMN List in an RR Manner...................................................................565.1.2 Shared E-UTRAN Cell Not Broadcasting Its PLMN List in an RR Manner............................................................615.2 Inter-RAT ANR with Shared Cells............................................................................................................................... 645.2.1 Shared GERAN Cell..................................................................................................................................................645.2.2 Shared UTRAN Cell..................................................................................................................................................65

6 NCL/NRT Self-Management Based on X2 Messages........................................................... 676.1 NCL/NRT Entry Addition and Update.........................................................................................................................686.2 NCL/NRT Entry Removal............................................................................................................................................ 70

7 Related Features...........................................................................................................................727.1 Features Related to LOFD-002001 Automatic Neighbour Relation (ANR)................................................................727.2 Features Related to LOFD-002002 Inter-RAT ANR....................................................................................................737.3 Features Related to LOFD-081225 Neighbor Cell Classification Management..........................................................737.4 Features Related to LBFD-081102 PLMN ID Management........................................................................................73

8 Network Impact........................................................................................................................... 758.1 LOFD-002001 Automatic Neighbour Relation (ANR)................................................................................................758.2 LOFD-002002 Inter-RAT ANR....................................................................................................................................768.3 LOFD-081225 Neighbor Cell Classification Management..........................................................................................778.4 LBFD-081102 PLMN ID Management........................................................................................................................77

9 Engineering Guidelines for Intra-RAT ANR.........................................................................789.1 When to Use Intra-RAT ANR...................................................................................................................................... 799.2 Required Information................................................................................................................................................... 809.3 Deployment.................................................................................................................................................................. 809.3.1 Process....................................................................................................................................................................... 809.3.2 Requirements............................................................................................................................................................. 809.3.3 Data Preparation........................................................................................................................................................ 819.3.4 Precautions.................................................................................................................................................................869.3.5 Hardware Adjustment................................................................................................................................................869.3.6 Activation.................................................................................................................................................................. 86



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9.3.7 Activation Observation..............................................................................................................................................929.3.8 Reconfiguration......................................................................................................................................................... 949.3.9 Deactivation...............................................................................................................................................................949.4 Performance Monitoring...............................................................................................................................................979.5 Parameter Optimization................................................................................................................................................989.6 Troubleshooting.......................................................................................................................................................... 104

10 Engineering Guidelines for Inter-RAT ANR.....................................................................10610.1 When to Use Inter-RAT ANR...................................................................................................................................10710.2 Required Information............................................................................................................................................... 10710.3 Deployment.............................................................................................................................................................. 10710.3.1 Process................................................................................................................................................................... 10710.3.2 Requirements......................................................................................................................................................... 10710.3.3 Data Preparation.................................................................................................................................................... 10810.3.4 Precautions.............................................................................................................................................................11410.3.5 Hardware Adjustment............................................................................................................................................ 11410.3.6 Activation...............................................................................................................................................................11410.3.7 Activation Observation..........................................................................................................................................12010.3.8 Reconfiguration..................................................................................................................................................... 12010.3.9 Deactivation...........................................................................................................................................................12010.4 Performance Monitoring...........................................................................................................................................12510.5 Parameter Optimization............................................................................................................................................12610.6 Troubleshooting........................................................................................................................................................ 129

11 Engineering Guidelines for ANR with Shared Cells.......................................................13111.1 When to Use ANR with Shared Cells.......................................................................................................................13211.2 Required Information................................................................................................................................................13311.3 Deployment...............................................................................................................................................................13311.3.1 Process................................................................................................................................................................... 13311.3.2 Requirements......................................................................................................................................................... 13311.3.3 Data Preparation.................................................................................................................................................... 13411.3.4 Precautions.............................................................................................................................................................13511.3.5 Hardware Adjustment............................................................................................................................................ 13511.3.6 Activation...............................................................................................................................................................13611.3.7 Activation Observation.......................................................................................................................................... 13911.3.8 Reconfiguration..................................................................................................................................................... 14011.3.9 Deactivation........................................................................................................................................................... 14011.4 Performance Monitoring...........................................................................................................................................14211.5 Parameter Optimization............................................................................................................................................ 14211.6 Troubleshooting........................................................................................................................................................ 142

12 Engineering Guidelines for NCL/NRT Self-Management Based on X2 Messages....14412.1 When to Use NCL/NRT Self-Management Based on X2 Messages........................................................................14412.2 Required Information............................................................................................................................................... 145



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12.3 Deployment.............................................................................................................................................................. 14512.3.1 Process................................................................................................................................................................... 14512.3.2 Requirements......................................................................................................................................................... 14512.3.3 Data Preparation.................................................................................................................................................... 14512.3.4 Precautions.............................................................................................................................................................14612.3.5 Hardware Adjustment............................................................................................................................................14612.3.6 Activation.............................................................................................................................................................. 14612.3.7 Activation Observation..........................................................................................................................................14912.3.8 Reconfiguration..................................................................................................................................................... 15012.3.9 Deactivation...........................................................................................................................................................15012.4 Performance Monitoring...........................................................................................................................................15112.5 Parameter Optimization............................................................................................................................................15312.6 Troubleshooting........................................................................................................................................................ 153

13 Engineering Guidelines for Neighboring Cell Classification........................................15513.1 When to Use Neighboring Cell Classification......................................................................................................... 15513.2 Required Information............................................................................................................................................... 15513.3 Deployment.............................................................................................................................................................. 15513.3.1 Process................................................................................................................................................................... 15513.3.2 Requirements......................................................................................................................................................... 15513.3.3 Data Preparation.................................................................................................................................................... 15613.3.4 Precautions.............................................................................................................................................................15713.3.5 Hardware Adjustment............................................................................................................................................15713.3.6 Activation.............................................................................................................................................................. 15713.3.7 Activation Observation..........................................................................................................................................16013.3.8 Reconfiguration..................................................................................................................................................... 16113.3.9 Deactivation...........................................................................................................................................................16113.4 Performance Monitoring...........................................................................................................................................16213.5 Parameter Optimization............................................................................................................................................16213.6 Troubleshooting........................................................................................................................................................ 163

14 Engineering Guidelines for PLMN ID Management.......................................................16414.1 When to Use PLMN ID Management...................................................................................................................... 16414.2 Required Information............................................................................................................................................... 16414.3 Deployment.............................................................................................................................................................. 16414.3.1 Process................................................................................................................................................................... 16414.3.2 Requirements......................................................................................................................................................... 16414.3.3 Data Preparation.................................................................................................................................................... 16414.3.4 Precautions.............................................................................................................................................................16514.3.5 Hardware Adjustment............................................................................................................................................16514.3.6 Activation.............................................................................................................................................................. 16514.3.7 Activation Observation..........................................................................................................................................16814.3.8 Reconfiguration..................................................................................................................................................... 16814.3.9 Deactivation...........................................................................................................................................................168



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14.4 Performance Monitoring...........................................................................................................................................16914.5 Parameter Optimization............................................................................................................................................16914.6 Troubleshooting........................................................................................................................................................ 169

15 Parameters.................................................................................................................................170

16 Counters.................................................................................................................................... 244

17 Glossary.....................................................................................................................................253

18 Reference Documents............................................................................................................. 254



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1 About This Document

1.1 ScopeThis document describes automatic neighbor relation (ANR) management, including itstechnical principles, related features, network impact, and engineering guidelines.

This document covers the following features:

l LOFD-002001 Automatic Neighbour Relation (ANR)l LOFD-002002 Inter-RAT ANRl LOFD-002004 Self-configurationl LOFD-081225 Neighbor Cell Classification Managementl LBFD-081102 PLMN ID Management

LOFD-002002 Inter-RAT ANR described in this document handles only neighborrelationships of evolved universal terrestrial radio access network (E-UTRAN) with universalterrestrial radio access network (UTRAN) or GSM/EDGE radio access network (GERAN).For details about ANR management of E-UTRAN with CDMA2000 networks, see LTE-CDMA2000 ANR Management Feature Parameter Description.

This document applies to the following types of eNodeBs.

eNodeB Type Model

Macro 3900 series eNodeB

Micro BTS3202E

LampSite DBS3900 LampSite

Any managed objects (MOs), parameters, alarms, or counters described herein correspond tothe software release delivered with this document. Any future updates will be described in theproduct documentation delivered with future software releases.

This document applies only to LTE FDD. Any "LTE" in this document refers to LTE FDD,and "eNodeB" refers to LTE FDD eNodeB.

eRANANR Management Feature Parameter Description 1 About This Document


1

1.2 Intended AudienceThis document is intended for personnel who:

l Need to understand the features described herein

l Work with Huawei products

1.3 Change HistoryThis section provides information about the changes in different document versions. There aretwo types of changes:

l Feature change

Changes in features and parameters of a specified version as well as the affected entities

l Editorial change

Changes in wording or addition of information and any related parameters affected byeditorial changes. Editorial change does not specify the affected entities.

eRAN8.1 02 (2015-06-30)

This issue includes the following changes.

ChangeType

Change Description ParameterChange

Affected Entity

Featurechange

None None None

Editorialchange

Revised descriptionsthroughout this document.

None N/A

eRAN8.1 01 (2015-03-23)

This issue includes the following changes.

ChangeType


Affected Entity

Featurechange

Added the function offiltering frequencies basedon operator informationwhen adding neighboringfrequencies based on X2messages. For details, see6.1 NCL/NRT EntryAddition and Update.

Added theGlobalProcSwitch.X2BasedUptENodeBPolicyparameter.

Macro, micro, andLampSite eNodeBs



2

ChangeType


Affected Entity

Added the punishmentmechanism of removedneighbor relationships. Fordetails, see 4.2.2.3Removing an NCL/NRTEntry.

Added thefollowingparameters:l ANR.NcellDel

PunishPeriodl ANR.EutranNc

ellDelPunNuml ANR.UtranNce

llDelPunNum


Added the support forseparate control on whetherthe eNodeB reports theoptimization advice ofneighbor relationships withcells in different RATs to theU2000. The NRToptimization advice isgenerated by event-triggeredANR, fast ANR, orautomatic optimization ofintra-RAT neighborrelationship attributes. Fordetails, see 4.1.2 NRTOptimization Mode.

Added theANR.OptModeStrategy parameter.


Editorialchange

None None N/A

eRAN8.1 Draft A (2015-1-15)Compared with Issue 03 (2014-11-13) of eRAN7.0, Draft A (2015-01-15) of eRAN8.1includes the following changes.

ChangeType

Change Description Parameter Change AffectedEntity

Featurechange

Added the impact of UEblacklists on ANR. For details,see 4.2 Intra- and Inter-RATEvent-triggered ANR and 4.3Intra- and Inter-RAT FastANR.

None Macro, micro,and LampSiteeNodeBs



3

ChangeType


Added ANR management ofneighbor relationships in somespecial networking scenarios.For details, see 4.2.1Automatic Detection ofMissing Neighboring Cells.


Added a parameter thatspecifies whether the 3GPPspecification modificationrelated to UTRANmeasurements takes effect. Fordetails, see 4.2.1 AutomaticDetection of MissingNeighboring Cells.

Added theENodeBAlgoSwitch.HoSignalingOptS-witch parameter.

Macro, micro,and LampSiteeNodeBs

Added the statement onwhether 3GPP specificationmodification related toGERAN measurements takeseffect. For details, see 4.2.1Automatic Detection ofMissing Neighboring Cells.

Added theGlobalProcSwitch.ProtocolMsgOptSwitch parameter.


Enhanced the function ofautomatically setting the NoHO attribute. For details, see4.5.1 Automatic Optimizationof Neighbor Relationshipswith Cells of AbnormalSuccess Rates of Intra-RATHandovers.

Added theANR.NoHoSetModeparameter.


Added the mechanism that UEsperforming VoLTE (Voice overLTE) services can be selectedfor measurements for even-triggered ANR with UTRANand GERAN. For details, see4.2.1 Automatic Detection ofMissing Neighboring Cells.

Added the followingparameters:l ANR.EventAnrW

ithVoipModel ANR.UtranEvent

AnrCgiTimerl ANR.GeranEvent

AnrCgiTimer


Added the function that aneNodeB can add an inter-RATexternal cell to an NCL and adda neighbor relationship with aninter-RAT cell to an NRT byevent-triggered inter-RATANR. For details, see 4.2.2.1Adding an NCL/NRT Entry.

Added the followingparameters:l ANR.UtranEvent

AnrModel ANR.GeranEvent

AnrMode




4

ChangeType


Optimized how the eNodeBadds a neighbor relationship toan NRT by using fast ANR. Fordetails, see 4.3.2.1 Adding anNCL/NRT Entry.

Added the valueNRT_MODE(NRT_MODE) to theANR.FastAnrModeparameter.


Added 4.5.2 Neighboring CellClassification.

Added the followingparameters:l CellAlgoSwitch.

NcellClassMgtSwl NCellClassMgt.S

tatPeriodForNCellClass

l NCellClassMgt.HoAttemptThd

l EutranIntraFreqNCell.NCellClassLabel

l ENodeBAlgoSwitch.PciConflictAlmSwitch


Added 4.6 PLMN IDManagement.

Added the followingparameters:NCellPlmnList.PlmnListTypeNCellPlmnList.RatType


Added neighbor relationshipremoval based on the cell-levelhandover success rate. Fordetails, see 4.2.2.3 Removingan NCL/NRT Entry.

Added theEUTRAN_DELCELLERRORNCELL(EUTRAN_DELCELLERRORNCELL)option to theANR.NrtDelModeparameter.


Added the statement onwhether 3GPP specificationmodification related toUTRAN measurements takeseffect. For details, see 4.2.1Automatic Detection ofMissing Neighboring Cells.

Added theMcUtranNcellNumOptSwtich(McUtranNcellNumOptSwtich) option to theENodeBAlgoSwitch.HoSignalingOptS-witch parameter.




5

ChangeType


Added intra- and inter-RATANR management on a perfrequency basis. For details, see4.2 Intra- and Inter-RATEvent-triggered ANR, 4.3Intra- and Inter-RAT FastANR, 9 EngineeringGuidelines for Intra-RATANR, and 10 EngineeringGuidelines for Inter-RATANR.

Added the followingparameters:l Cell.IntraFreqAn

rIndl EutranInterNFre

q.AnrIndl GeranNfreqGrou

p.AnrIndl UtranNFreq.Anr

Ind


Optimized 4.2.2.3 Removingan NCL/NRT Entry. ANRnow supports three types ofautomatic neighbor relationshipremoval:l Removal of inappropriate

neighbor relationshipsl Removal of redundant

neighbor relationshipsl Priority-based removal

when the number ofneighbor relationshipsreaches its maximum

Added the followingparameters:l ANR.NrtDelMod

el Cell.FreqPriority

ForAnrl EutranInterNFre

q.FreqPriorityForAnr

l UtranNFreq.FreqPriorityForAnr

l GERANNFREQGROUP.FreqPriorityForAnr

l ANR.UtranNcellHoForNRTDelThd

l ANR.GeranNcellHoForNRTDelThd


Added a switch to controlwhether to enable smartpreallocation during cell globalidentification (CGI) reading forANR.For details, see 3.4 ANRCapabilities of UEs.

Added theANR.SmartPreallocationModeparameter.


Added the ANR-dedicateddiscontinuous reception (DRX)inactivity timer.For details, see 3.4 ANRCapabilities of UEs.

Added theDrx.DrxInactivityTi-merForAnrparameter.




6

ChangeType


Added a switch to controlwhether a newly detectedneighboring cell can beselected as a target cell inhandovers if the eNodeBdelivers the NRT optimizationadvice to the U2000 incontrolled mode and the adviceis not confirmed by an operatoryet.For details, see 4.1.2 NRTOptimization Mode.

Added theANR.AnrControlledHoStrategy.


Added the mechanism tocontrol whether a UEperforming VoIP services canset up measurement gaps andperforms fast ANRmeasurements.For details, see 4.3.1Automatic Detection ofMissing Neighboring Cells.

Added theGlobalProcSwitch.VoipWithGapModeparameter.


Added automatic optimizationof inter-RAT neighboring cellmeasurement priorities.For details, see 4.5.4Automatic Optimization ofMeasurement Priorities ofInter-RAT Neighboring Cells.

Added theANR.PeriodForNCellRanking parameter.


Supported ANR with sharedcells in scenarios where theserving cell and neighboringcells are managed by differentU2000 servers.For details, see 5 ANR withShared Cells.




7

ChangeType


Added the function that theeNodeB can obtain neighboringcell information from theU2000 based on the frequencyfor ANR with shared cells.For details, see 5 ANR withShared Cells.

Added the followingparameters:l Cell.IntraFreqRa

nSharingIndl EutranInterNFre

q.InterFreqRanSharingInd

l GeranNFreqGroup.GeranRanSharingInd

l UtranNFreq.UtranRanSharingInd


Editorialchange

Added the description abouthow to use the LTE ANRmanagement function on theU2000 to view configuredneighbor relationships. Fordetails, see 9.3.7 ActivationObservation.

None N/A

1.4 Differences Between eNodeB Types

Feature Support by Macro, Micro, and LampSite eNodeBsFeature ID Feature Name Supported

by MacroeNodeBs

Supported byMicroeNodeBs

SupportedbyLampSiteeNodeBs

LOFD-002001 Automatic NeighbourRelation (ANR)

Yes Yes Yes

LOFD-002002 Inter-RAT ANR Yes Yes Yes

LOFD-081225 Neighbor CellClassificationManagement

Yes Yes Yes

LBFD-081102 PLMN ID Management Yes Yes Yes



8

Function Implementation in Macro, Micro, and LampSite eNodeBsFunction Difference

Intra-eNodeBneighboringcells

Micro cells do not have intra-eNodeB neighboring cells. Descriptions ofintra-eNodeB neighboring cells in this document apply to macro andLampSite eNodeBs, but not to micro eNodeBs.



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2 Overview

2.1 IntroductionOperation and maintenance (OM) of radio access networks has become increasingly complex,difficult, and costly because of the huge number of network elements, the implementation ofdifferent system standards, and the coexistence of different equipment vendors and telecomoperators. To address this, 3GPP Release 8 introduces the self-organizing network (SON)solution. The main functions of SON are self-configuration, self-optimization, and self-healing. Automatic neighbor relation (ANR) is a self-optimization function of SON.

ANR automatically detects and adds missing neighboring cells. It identifies and removesincorrect or redundant neighboring cells, and it automatically optimizes the attributes ofneighbor relationships, such as the No HO attribute and blind handover priorities.

2.2 BenefitsANR handles neighbor relationships of E-UTRAN cells with E-UTRAN, UTRAN, andGERAN cells. It automatically maintains the completeness, validity, and correctness of theneighbor relationships to improve network performance. In addition, ANR automaticallyoptimizes the attributes of neighbor relationships, thereby reducing manual intervention whiledecreasing the costs of network planning, network optimization, and OM.

2.3 ArchitectureANR automatically detects missing and redundant neighboring cells and maintainsneighboring cell lists (NCLs) and neighboring relation tables (NRTs). Automatic detection ofmissing neighboring cells requires ANR-capable UEs in the network. For details about theconcepts related to ANR (such as NCL, NRT, and ANR capabilities of UEs), see 3 ConceptsRelated to ANR.

ANR can be classified into intra-RAT ANR and inter-RAT ANR in terms of the RAT of theneighboring cells that ANR manages. For details, see 4 Intra- and Inter-RAT ANR.

For details about intra- or inter-RAT ANR in scenarios where the neighboring eNodeB,neighboring NodeB, or neighboring GSM BTS is shared by multiple operators, see 5 ANRwith Shared Cells.

eRANANR Management Feature Parameter Description 2 Overview


10

If X2 interface self-management is enabled, automatic intra-RAT NCL/NRT maintenance canbe triggered by X2 messages. For details, see 6 NCL/NRT Self-Management Based on X2Messages.

eRANANR Management Feature Parameter Description 2 Overview


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3 Concepts Related to ANR

This chapter describes the following basic ANR-related concepts:

l NCLl NRTl Blacklists and whitelist

– Handover (HO) blacklist– HO whitelist– Radio resource control (RRC) blacklist

l ANR capabilities of UEs

eRANANR Management Feature Parameter Description 3 Concepts Related to ANR


12

3.1 NCLThe NCLs of an eNodeB contain information about the external cells of the eNodeB. Externalcells belong to other base stations.

NCLs are classified into intra- and inter-RAT NCLs. Each eNodeB has one intra-RAT NCLand multiple inter-RAT NCLs, such as the GERAN NCL and the UTRAN NCL.

l The intra-RAT NCL records information such as the E-UTRAN cell global identifiers(ECGIs), physical cell identifiers (PCIs), and E-UTRA absolute radio frequency channelnumbers (EARFCNs) of the external E-UTRAN cells. The information is contained inEutranExternalCell managed objects (MOs).

l The GERAN NCL records information such as the cell IDs, base transceiver stationidentity codes (BSICs), and ARFCNs of the external GERAN cells. The information iscontained in GeranExternalCell MOs.

l The UTRAN NCL records information such as the cell IDs, scrambling codes, andUTRA ARFCNs (UARFCNs) of the external UTRAN cells. The information iscontained in UtranExternalCell MOs.

ANR can automatically add external cells to NCLs, remove external cells from NCLs, andupdate information about the external cells in NCLs.

NOTE

l For details about how to manually configure intra-RAT NCLs, see Intra-RAT Mobility Managementin Connected Mode Feature Parameter Description.

l For details about how to manually configure inter-RAT NCLs, see Inter-RAT Mobility Managementin Connected Mode Feature Parameter Description.

l For details about all attributes in NCLs, see 3900 Series Base Station MML Command Reference and3900 Series Base Station MO Reference.

3.2 NRTThe NRTs of a cell contain information about the neighbor relationships of the cell with itsadjacent cells.

Each cell has one intra-RAT intra-frequency NRT, one intra-RAT inter-frequency NRT, andmultiple inter-RAT NRTs.

The intra- and inter-RAT NRTs have different structures. Table 3-1 provides an example of anintra-RAT NRT. The structure of Huawei intra-RAT NRTs may differ from this example. Fordetails about NRTs, see section 22.3.2a "Automatic Neighbour Relation Function" in 3GPPTS 36.300 V10.3.0.

Table 3-1 Intra-RAT NRT example

SN LCI TargetCellPLMN

eNodeB ID Cell ID No Remove No HO

1 LCI#1 46001 eNodeB ID#1 Cell ID#1 FORBID_RMV_ENUM

FORBID_HO_ENUM



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SN LCI TargetCellPLMN

eNodeB ID Cell ID No Remove No HO

2 LCI#1 46001 eNodeB ID#2 Cell ID#2 PERMIT_RMV_ENUM

PERMIT_HO_ENUM

3 LCI#1 46001 eNodeB ID#3 Cell ID#3 FORBID_RMV_ENUM

FORBID_HO_ENUM

NOTE

Huawei NRTs do not include the No X2 attribute.

Each intra-RAT NRT contains the following information:

l Local cell identifier (LCI): identifies the local cell of a neighbor relationship.l Target cell PLMN: identifies the public land mobile network (PLMN) of the operator

that owns the target cell.l eNodeB ID: identifies the eNodeB that serves the target cell.l Cell ID: identifies the target cell.l No Remove: indicates whether ANR can remove the neighbor relationship from the

NRT. The No Remove attribute is specified by the No remove indicator parameters ofHuawei eNodeBs. The default values of these parameters arePERMIT_RMV_ENUM(Permit ANR Remove).– If the No remove indicator parameter is set to FORBID_RMV_ENUM(Forbid

ANR Remove) for a neighbor relationship, ANR cannot remove the neighborrelationship from the NRT.

– If the No remove indicator parameter is set to PERMIT_RMV_ENUM(PermitANR Remove) for a neighbor relationship, ANR can remove the neighborrelationship from the NRT.

l No HO: indicates whether the neighbor relationship can be used for handovers. The NoHO attribute is specified by the No handover indicator parameters of Huawei eNodeBs.The default values of these parameters are PERMIT_HO_ENUM(Permit Ho).– If the No handover indicator parameter is set to FORBID_HO_ENUM(Forbid

Ho) for a neighbor relationship, the neighbor relationship cannot be used forhandovers.

– If the No handover indicator parameter is set to PERMIT_HO_ENUM(PermitHo) for a neighbor relationship, the neighbor relationship can be used forhandovers.

ANR can automatically add a neighbor relationship to an NRT or remove a neighborrelationship from the NRT. In addition, ANR can automatically optimize the configurations ofneighbor relationships.



14

NOTE

l For details about how to manually configure intra-RAT NRTs, see Intra-RAT Mobility Managementin Connected Mode Feature Parameter Description.

l For details about how to manually configure inter-RAT NRTs, see Inter-RAT Mobility Managementin Connected Mode Feature Parameter Description.

l Besides 3GPP-defined attributes, Huawei eNodeBs also supports some other special attributes usedin Huawei features. These attributes include Blind handover Priority, Cell Measure Priority, andNeighbor Cell Classification Flag. For details about these attributes, see 3900 Series Base StationMML Command Reference and 3900 Series Base Station MO Reference.

3.3 Blacklists and Whitelist

HO Blacklist

The neighbor relationships in the HO blacklist meet both of the following conditions:

l The No remove indicator parameter is set to FORBID_RMV_ENUM(Forbid ANRRemove).

l The No handover indicator parameter is set to FORBID_HO_ENUM(Forbid Ho).

ANR cannot remove neighbor relationships in the HO blacklist.

HO blacklists can only be configured manually. For more details about the HO blacklist, seesection 5.2 "Specification level requirements" in 3GPP TS 32.511 V10.0.0.

HO Whitelist

The neighbor relationships in the HO whitelist meet both of the following conditions:l The No remove indicator parameter is set to FORBID_RMV_ENUM(Forbid ANR

Remove).l The No handover indicator parameter is set to PERMIT_HO_ENUM(Permit Ho).

ANR cannot remove neighbor relationships in the HO whitelist.

HO whitelists can only be configured manually. For more details about the HO whitelist, seesection 5.2 "Specification level requirements" in 3GPP TS 32.511 V10.0.0.

RRC Blacklist

An RRC blacklist contains the neighboring cells that UEs are not allowed to measure. ANRcannot automatically detect the neighboring cells in the RRC blacklist.

RRC blacklists can only be configured manually

3.4 ANR Capabilities of UEsThe ANR capabilities of a UE are represented by the ability of the UE to read the CGIs ofneighboring cells. The feature group indicators (FGI) field in the RRC_UE_CAP_INFOmessage indicates the ANR capability of the UE. For more details, see section B.1 "Featuregroup indicators" in 3GPP TS 36.331 V10.5.0. Table 3-2 provides the definitions and settingdescriptions of the ANR-related indicators.



15

NOTE

The FGI field related to ANR is defined in 3GPP Release 8. UEs that comply with 3GPP Release 8 orlater may support ANR. As of 3GPP TS 36.331 V10.5.0, the size of the FGI field has been changedfrom 32 bits to 64 bits. The leftmost indicator is set to 1.

In the table, the Definition column lists the functions supported when the bit number is set to 1. IfApplicable is marked with Yes, the functions listed in the same row have been implemented andsuccessfully tested on the eNodeB.

Table 3-2 Definitions and setting descriptions of ANR-related indicators

Indicator Index(Bit Number)

Definition Remarks Applicable

5 l Long DRX cyclel DRX command MAC control

element

None Yes

17 Periodic reporting of ANR-relatedintra-frequency measurements:l Intra-frequency measurement

reporting with triggerType set toperiodical and purpose set toreportStrongestCells

l Intra-frequency measurementreporting with triggerType set toperiodical and purpose set toreportCGI

This indicatorcan only be setto 1 if the UEsets indicator 5to 1.

Yes

18 Periodic reporting of ANR-relatedinter-frequency measurements:l Inter-frequency measurement

reporting with triggerType set toperiodical and purpose set toreportStrongestCells

l Inter-frequency measurementreporting with triggerType set toperiodical and purpose set toreportCGI

This indicatorcan be set to 1 ifthe UE setsindicators 5 and25 to 1.

Yes(unlessthe UEsupportsonly band13)



16

Indicator Index(Bit Number)

Definition Remarks Applicable

19 Periodic reporting of ANR-relatedinter-RAT measurements:l GERAN measurement reporting

with triggerType set to periodicaland purpose set toreportStrongestCells, if the UEsets indicator 23 to 1

l UTRAN, CDMA2000 1xRTT, orCDMA2000 HRPD measurementreporting with triggerType set toperiodical and purpose set toreportStrongestCellsForSON, ifthe UE sets indicator 22, 24, or 26to 1, respectively

l UTRAN, GERAN, CDMA20001xRTT, or CDMA2000 HRPDmeasurement reporting withtriggerType set to periodical andpurpose set to reportCGI, if theUE sets indicator 22, 23, 24, or 26to 1, respectively

l Thisindicator canbe set to 1 ifthe UE setsindicator 5 to1 and at leastone ofindicators 22,23, 24, and26 to 1.

l Even if theUE setsindicators 33through 36 to1, indicator19 must beset to 1.

-

33 Periodic reporting of ANR-relatedUTRAN measurements:l Inter-RAT measurement reporting

with triggerType set to periodicaland purpose set toreportStrongestCellsForSON

l Inter-RAT measurement reportingwith triggerType set to periodicaland purpose set to reportCGI


-

34 Periodic reporting of ANR-relatedGERAN measurements:l Inter-RAT measurement reporting

with triggerType set to periodicaland purpose set toreportStrongestCells

l Inter-RAT measurement reportingwith triggerType set to periodicaland purpose set to reportCGI


-

In summary, the FGI field must be set as follows for intra- and inter-RAT ANR:

l If the UE sets indicators 5 and 17 to 1, the UE supports intra-frequency ANR. If the UEsets indicators 5 and 18 to 1, the UE supports inter-frequency ANR.



17

l If the UE sets indicators 5, 19, and 33 to 1, the UE supports ANR with UTRAN.l If the UE sets indicators 5, 19, and 34 to 1, the UE supports ANR with GERAN.

As defined in 3GPP specifications, an eNodeB sends a set of temporary DRX parameters to aUE for ANR measurements. The UE reads the CGIs of neighboring cells after the DRXmechanism starts in both the eNodeB and the UE. After the UE acquires the CGIs, the DRXmechanism stops in the eNodeB and the UE.

This mechanism does not require the DRX feature to be activated. The ANR-dedicated longDRX cycles for intra- and inter-RAT ANR measurements are specified by theDrx.LongDrxCycleForAnr and Drx.LongDRXCycleforIRatAnr parameters, respectively.The ANR-dedicated DRX inactivity timer is specified by the Drx.DrxInactivityTimerForAnrparameter. For details about how DRX works in ANR measurements, see DRX and SignalingControl Feature Parameter Description.

During CGI reading, smart preallocation may take effect or not, depending on the setting ofthe ANR.SmartPreallocationMode parameter. Smart preallocation takes effect during CGIreading only if this parameter is set to ENABLE(Enable) and smart preallocation function isenabled. For details about smart preallocation, see Scheduling Feature ParameterDescription.



18

4 Intra- and Inter-RAT ANR

This chapter describes the optional features LOFD-002001 Automatic Neighbor Relation(ANR), which is specific to intra-RAT ANR, and LOFD-002002 Inter-RAT ANR.

eRANANR Management Feature Parameter Description 4 Intra- and Inter-RAT ANR


19

4.1 OverviewIntra- and inter-RAT ANR can manage only the external cells and neighbor relationships forwhich the Control Mode parameter is set to AUTO_MODE(Auto Mode). Intra- and inter-RAT ANR generate NRT optimization advice and deliver the advice in free or controlledmode. For details about the control mode of NCL/NRT entries and the NRT optimizationadvice delivery mode, see 4.1.1 NCL/NRT Control Mode and 4.1.2 NRT OptimizationMode, respectively.

Both intra- and inter-RAT ANR provide the following functions:

l Event-triggered ANRIntra-RAT event-triggered ANR uses event-triggered UE measurements or UE historyinformation to detect missing intra-RAT neighboring cells. This type of ANRautomatically maintains intra-RAT NCLs and NRTs. Inter-RAT event-triggered ANRuses only event-triggered UE measurements to detect missing inter-RAT neighboringcells. This type of ANR automatically maintains inter-RAT NCLs and NRTs. For detailsabout event-triggered ANR, see 4.2 Intra- and Inter-RAT Event-triggered ANR.

l Fast ANRFast ANR is also known as periodic ANR. It detects missing intra- or inter-RATneighboring cells based on periodic UE measurement reports. Fast ANR only adds themissing neighboring cells. For details about fast ANR, see 4.3 Intra- and Inter-RATFast ANR.

l Automatic optimization of neighbor relationship attributesThis function optimizes certain attributes of neighbor relationships based on handoverstatistics. For details, see 4.5 Automatic Optimization of Neighbor RelationshipAttributes.

If both event-triggered ANR and fast ANR are enabled, UEs perform both event-triggeredmeasurements and periodic measurements. eNodeBs detect missing neighboring cells basedon either event-triggered or periodic measurement reports.

Intra- and inter-RAT ANR work in a similar way but differ in certain principles andparameters.

NOTE

When the CPU usage of the main control board exceeds 80%, the eNodeB does not handle unknownCGIs or perform backward ANR.

The handling of unknown CGIs includes adding and updating intra- and inter-RAT NCL and NRTentries, as described in 4.2.2 Automatic Maintenance of NCLs and NRTs and 6.1 NCL/NRT EntryAddition and Update. For details about backward ANR, see 4.4 Intra-RAT Backward ANR.

4.1.1 NCL/NRT Control ModeExternal cells and neighbor relationships can be manually or automatically added to NCLsand NRTs, respectively. External cells in NCLs and neighbor relationships in NRTs that areautomatically added by ANR can be maintained automatically by ANR.



20

NOTE

l The Control Mode parameter can be set to AUTO_MODE(Auto Mode) orMANUAL_MODE(Manual Mode) for an external cell or a neighbor relationship that is manuallyadded.

l The Control Mode parameter is automatically set to AUTO_MODE(Auto Mode) for an externalcell or a neighbor relationship that is automatically added by ANR.

Table 4-1 lists the parameters that specify the control mode for external cells in NCLs andneighbor relationships in NRTs.

Table 4-1 Control mode parameters

NCL/NRT Parameter ID

Intra-RATNCL andNRT

External E-UTRAN cell

EutranExternalCell.CtrlMode

Intra-frequencyneighborrelationship

EutranIntraFreqNCell.CtrlMode

Inter-frequencyneighborrelationship

EutranInterFreqNCell.CtrlMode

Inter-RATNCL andNRT

ExternalUTRAN cell

UtranExternalCell.CtrlMode

Neighborrelationshipwith aUTRAN cell

UtranNCell.CtrlMode

ExternalGERAN cell

GeranExternalCell.CtrlMode

Neighborrelationshipwith aGERAN cell

GeranNcell.CtrlMode

4.1.2 NRT Optimization ModeThe delivery mode of each type of optimization advice is controlled by the followingparameters. The optimization advice includes NRT optimization advice generated by event-triggered ANR, fast ANR, and automatic optimization of neighbor relationship attributes andoptimization advice generated by automatic optimization of blind handover priorities forinter-RAT neighbor relationships.

For the advice generated by event-triggered ANR, fast ANR, or automatic optimization ofintra-RAT neighbor relationship attributes, the delivery mode is specified by theANR.OptMode parameter. The ANR.OptMode has two values:



21

l FREE(FREE): The optimization advice takes effect directly.

l CONTROLLED(CONTROLLED): The ANR.OptModeStrategy parameter specifieswhether the eNodeB reports the optimization advice of neighbor relationships with cellsin different RATs to the U2000. Related switches are described as follows:

– EutranCtrlOptMode(EutranCtrlOptMode): This option specifies whether theeNodeB reports the optimization advice of neighbor relationships with E-UTRANcells to the U2000. If this option is selected, the eNodeB reports the optimizationadvice to the U2000, and operators determine whether to take the advice on theU2000. The optimization is subject to the manual confirmation. If this option isdeselected, the eNodeB automatically handles the neighbor relationships with E-UTRAN cells.

– UtranCtrlOptMode(UtranCtrlOptMode): This option specifies whether theeNodeB reports the optimization advice of neighbor relationships with UTRANcells to the U2000. If this option is selected, the eNodeB reports the optimizationadvice to the U2000, and operators determine whether to take the advice on theU2000. The optimization is subject to the manual confirmation. If this option isdeselected, the eNodeB automatically handles the neighbor relationships withUTRAN cells.

– GeranCtrlOptMode(GeranCtrlOptMode): This option specifies whether theeNodeB reports the optimization advice of neighbor relationships with GERANcells to the U2000. If this option is selected, the eNodeB reports the optimizationadvice to the U2000, and operators determine whether to take the advice on theU2000. The optimization is subject to the manual confirmation. If this option isdeselected, the eNodeB automatically handles the neighbor relationships withGERAN cells.

When the NRT optimization advice takes effect in controlled mode, the collaboration betweenANR management of missing neighboring cells and handovers varies depending on the targetRATs of handovers:

l Handovers to E-UTRAN or GERAN cells: If the ANR.AnrControlledHoStrategyparameter is set to PERMIT_HO(PERMIT_HO), after receiving handovermeasurement reports from UEs, the eNodeB performs the handovers even if operatorshave not confirmed the optimization advice to add the neighbor relationships with thetarget cells to the NRTs. If the ANR.AnrControlledHoStrategy parameter is set toFORBID_HO(FORBID_HO), after receiving handover measurement reports fromUEs, the eNodeB cannot perform the handovers if operators have not confirmed theoptimization advice to add the neighbor relationships with the target cells to the NRTs. Inconclusion, when the ANR.AnrControlledHoStrategy parameter is set toFORBID_HO(FORBID_HO), operators need to confirm the optimization advice in atimely manner so that the eNodeB can perform the handovers and RRC connectionreestablishments or service drops are avoided.

l Handovers to UTRAN cells: The eNodeB delivers only the UTRAN cells included in theNRT to UEs for handover measurement. Therefore, if operators do not confirm theoptimization advice to add the neighbor relationship with a UTRAN cell to the NRT, theeNodeB does not hand over UEs to the UTRAN cell.

For the advice generated by automatic optimization of blind handover priorities for inter-RATneighbor relationships, the delivery mode is specified by the BlindNcellOpt.OptModeparameter. The BlindNcellOpt.OptMode parameter has two values:

l FREE(FREE): The optimization advice takes effect directly.



22

l CONTROLLED(CONTROLLED): The eNodeB reports the optimization advice to theU2000, and operators determine whether to take the advice.

4.2 Intra- and Inter-RAT Event-triggered ANRIntra-RAT event-triggered ANR is controlled by theIntraRatEventAnrSwitch(IntraRatEventAnrSwitch) option of theENodeBAlgoSwitch.AnrSwitch parameter and the frequency-specific ANR indicators.

l The Cell.IntraFreqAnrInd parameter specifies whether to allow ANR management ofexternal cells and neighbor relationships with these cells on the serving frequency.

l The EutranInterNFreq.AnrInd parameter specifies whether to allow ANRmanagement of external cells and neighbor relationships with these cells on aneighboring E-UTRAN frequency.

Inter-RAT event-triggered ANR can be classified into event-triggered ANR with GERAN andevent-triggered ANR with UTRAN, which are controlled by theGeranEventAnrSwitch(GeranEventAnrSwitch) andUtranEventAnrSwitch(UtranEventAnrSwitch) options of theENodeBAlgoSwitch.AnrSwitch parameter, respectively, and the frequency-specific ANRindicators.

l The GeranNfreqGroup.AnrInd parameter specifies whether to allow ANRmanagement of external cells and neighbor relationships with these cells on frequenciesin a neighboring GERAN frequency group.

l The UtranNFreq.AnrInd parameter specifies whether to allow ANR management ofexternal cells and neighbor relationships with these cells on a neighboring UTRANfrequency.

NOTE

NCLs are configured for a specific eNodeB, and frequency-specific ANR indicators areconfigured for a specific cell. An eNodeB can add an external cell to the NCL when the ANRindicator of the corresponding frequency configured for any cell served by the eNodeB is set toALLOWED(ALLOWED) and can remove an external cell from the NCL only when the ANRindicator of the corresponding frequency configured for all cells served by the eNodeB is set toALLOWED(ALLOWED).

Some UEs in the network may report incorrect CGIs or their ANR capabilities indicatedin the reported FGIs are inconsistent with their actual ANR capabilities. If an eNodeBselects such UEs to perform ANR measurements, the UEs or the network may benegatively affected. To address this, the eNodeB can select other UEs to performmeasurements for intra- and inter-RAT event-triggered ANR.

NOTE

For details about LOFD-081226 Terminal Awareness Differentiation, see Terminal AwarenessDifferentiation Feature Parameter Description.

4.2.1 Automatic Detection of Missing Neighboring CellsThe procedure for using event-triggered UE measurements to detect missing neighboring cellsis defined in section 22.3.2a "Automatic Neighbour Relation Function" of 3GPP TS 36.300V10.3.0.

Both intra- and inter-RAT event-triggered ANR use event-triggered UE measurements todetect missing neighboring cells.



23

During the detection procedure, the eNodeB determines whether to select carrier aggregation(CA) UEs to perform measurements based on the ANR.CaUeChoseMode parameter setting:

l If this parameter is set to CA_UE_CAP(CA UE Capability), the eNodeB does notselect the CA UEs that support the CA bands in the CA band combinations supported bythe eNodeB.

l If this parameter is set to CA_UE_CARRIER_NUM(CA UE Carrier Number), theeNodeB does not select the CA UEs that are each served by more than one carrier.

l If this parameter is set to ANR_UE_CAP(ANR UE Capability), the eNodeB does notselect the UEs that are incapable of CGI reading for ANR.

Detecting Missing Intra-RAT Neighboring CellsIntra-RAT event-triggered ANR detects missing intra-RAT neighboring cells based on the celllists in intra- and inter-frequency measurement reports. This type of ANR is triggered only byintra-RAT handover measurements.

Table 4-2 lists types of handover measurements and related parameters.

Table 4-2 Types of intra-RAT handover measurements and related parameters

Handover Measurement Type Parameters

Coverage-based handover measurements IntraRatEventAnrS-witch(IntraRatEventAnrSwitch) option ofthe ENodeBAlgoSwitch.AnrSwitchparameter

Inter-frequency MLB measurements IntraRatEventAnrS-witch(IntraRatEventAnrSwitch) andMlbBasedEventAnrS-witch(MlbBasedEventAnrSwitch) optionsof the ENodeBAlgoSwitch.AnrSwitchparameter

Service-based handover measurements IntraRatEventAnrS-witch(IntraRatEventAnrSwitch) andServiceBasedEventAnrS-witch(ServiceBasedEventAnrSwitch)options of theENodeBAlgoSwitch.AnrSwitch parameter

Other types of handover measurements IntraRatEventAnrS-witch(IntraRatEventAnrSwitch) andIntraRatEnhancedEventAnrS-witch(IntraRatEnhancedEventAnrS-witch) options of theENodeBAlgoSwitch.AnrSwitch parameter

NOTE

Other types of handovers include distance-based inter-frequency handover and uplink-quality-basedinter-frequency handover. For details about different types of handovers, see Intra-RAT MobilityManagement in Connected Mode Feature Parameter Description.



24

Assume that a UE is served by cell A of the source eNodeB and that cell B is an intra-RATadjacent cell of cell A. Figure 4-1 illustrates how the eNodeB uses event-triggered UEmeasurements to detect cell B.

Figure 4-1 Procedure for using event-triggered UE measurements to detect a missing intra-RAT neighboring cell

1. The source eNodeB delivers the measurement configuration to the UE, instructing theUE to measure adjacent cells. By default, the UE performs intra-frequencymeasurements.When a UE establishes radio bearers, the source eNodeB delivers the intra-frequencymeasurement configuration to the UE in an RRC Connection Reconfiguration messageby default. When inter-frequency measurements are required, the source eNodeB mustdeliver the inter-frequency measurement configuration to the UE to set up inter-frequency measurement gaps. For details about intra-frequency and inter-frequencymeasurements, see Intra-RAT Mobility Management in Connected Mode FeatureParameter Description.

2. The UE detects that cell B meets the measurement requirements, and the UE reports thePCI of cell B to the source eNodeB. Note that the UE does not report the PCIs of thecells in the RRC blacklist to the eNodeB.

3. The source eNodeB checks whether its intra-RAT NCL includes the PCI of cell B.– If the NCL includes this PCI, the procedure ends.– If the NCL does not include this PCI, cell B is a missing intra-RAT neighboring cell

of cell A. The procedure continues.

NOTE

If the UE reports the PCIs of several adjacent cells that meet the measurement requirements,the source eNodeB checks only for the PCI of the strongest adjacent cell.



25

4. The source eNodeB instructs the UE to read the ECGI, tracking area code (TAC), andPLMN list of cell B.Timer T321 controls the maximum time a UE can spend reading ECGIs. The followingtable describes when the timer starts, stops, and expires. For the timer values, see 5.5.2.3"Measurement identity addition/modification" in 3GPP TS 36.331 V10.5.0.

Timer Start Stop At Expiry

T321 Upon receivingmeasConfig includinga reportConfig withthe purpose set toreportCGI

Upon acquiring theinformation needed to set allfields of cellGlobalId for therequested cell, upon receivingmeasConfig that includesremoval of the reportConfigwith the purpose set toreportCGI

Initiate themeasurementreportingprocedure, stopperforming therelatedmeasurementsand remove thecorrespondingmeasId

5. The UE reports the ECGI, TAC, and PLMN list of cell B to the source eNodeB.

After detecting the missing neighboring cell, the source eNodeB checks whether the intra-RAT NCL includes the ECGI and then performs the following:

l If the NCL does not include the ECGI, the source eNodeB automatically adds cell B toits intra-RAT NCL and adds the neighbor relationship with cell B to an intra-RAT NRTof cell A. For details, see 4.2.2.1 Adding an NCL/NRT Entry.

l If the NCL includes the ECGI, the source eNodeB checks whether an intra-RAT NRTincludes the ECGI. If an NRT includes the ECGI, the source eNodeB automaticallyupdates the ECGI-specified cell's PCI and other parameters, such as EARFCN and TAC,in the NCL. For details, see 4.2.2.2 Modifying an NCL Entry. If the NRTs do notinclude the ECGI, the eNodeB adds the neighbor relationship of cell A with cell B to anNRT and updates the parameters. For details, see 4.2.2.1 Adding an NCL/NRT Entry.

In some special networking scenarios (for example, a large number of micro eNodeBs aredeployed around macro eNodeBs), cells served by some specific eNodeBs are allocated withPCIs in a specified PCI group and these cells may share the PCI in the group. In this case,neighbor relationships with these cells need to be specially managed. For details, see SpecifiedPCI Group-based Neighboring Cell Management Feature Parameter Description.

Detecting Missing Inter-RAT Neighboring CellsInter-RAT event-triggered ANR detects missing inter-RAT neighboring cells based on the celllists in inter-RAT measurement reports. This type of ANR is triggered only by coverage-basedhandover measurements or inter-RAT MLB measurements.

Table 4-3 lists types of handover measurements and related parameters.



26

Table 4-3 Types of handover measurements triggering inter-RAT event-triggered ANR andrelated parameters

HandoverMeasurement Type

Parameters for ANR with UTRAN Parameters forANR withGERAN

Coverage-based handovermeasurements

UtranEventAnrSwitch(UtranEventAnrSwitch) option of theENodeBAlgoSwitch.AnrSwitchparameter

GeranEventAnrSwitch(GeranEventAnrSwitch)option of theENodeBAlgoSwitch.AnrSwitchparameter

Inter-RAT MLBmeasurements

UtranEventAnrSwitch(UtranEventAnrSwitch) and MlbBasedEventAnrS-witch(MlbBasedEventAnrSwitch)options of theENodeBAlgoSwitch.AnrSwitchparameter

GeranEventAnrSwitch(GeranEventAnrSwitch) andMlbBasedEventAnrSwitch(MlbBasedEventAnrSwitch) options of theENodeBAlgoSwitch.AnrSwitchparameter

This section uses the procedure for detecting a missing neighboring UTRAN cell to illustratehow inter-RAT event-triggered ANR detects missing inter-RAT neighboring cells. Assumethat a UE is served by cell A of the source eNodeB and that cell B is an inter-RAT adjacentcell of cell A. Figure 4-2 illustrates how the eNodeB uses event-triggered UE measurementsto detect cell B.



27

Figure 4-2 Procedure for using event-triggered UE measurements to detect a missing inter-RAT neighboring cell

1. The source eNodeB delivers the inter-RAT measurement configuration to the UE, sets upmeasurement gaps, and instructs the UE to measure the specified UTRAN frequenciesand cells.

2. The UE detects that cell B meets the measurement requirements and reports thescrambling code of cell B to cell A.

3. The source eNodeB checks whether its UTRAN NCL includes the scrambling code ofcell B.– If the NCL includes the scrambling code, the ANR procedure ends.– If the NCL does not include the scrambling code, cell B is a missing inter-RAT

neighboring cell of cell A. The procedure continues.4. The source eNodeB instructs the UE to read the CGI, location area code (LAC), and

routing area code (RAC) of cell B.5. The UE reports the CGI, LAC, and RAC of cell B to the source eNodeB.

After detecting the missing neighboring cell, the source eNodeB checks whether the CGIexists in the UTRAN NCL and then performs the following:

l If the NCL does not include the CGI, the source eNodeB automatically adds cell B to theNCL and adds the neighbor relationship with cell B to the UTRAN NRT of cell A. Fordetails, see 4.2.2.1 Adding an NCL/NRT Entry.

l If the NCL includes the CGI, the source eNodeB checks whether the UTRAN NRTincludes the CGI. If the NRT includes the CGI, the source eNodeB automatically updatesthe CGI-specified cell's scrambling code and other parameters, such as LAC and RAC,in the NRT. For details, see 4.2.2.2 Modifying an NCL Entry. If the NRT does notinclude the CGI, the eNodeB adds the neighbor relationship with cell B to the NRT. Fordetails, see 4.2.2.1 Adding an NCL/NRT Entry.



28

According to 3GPP specifications, UEs cannot report missing neighboring UTRAN cells bysending B1- or B2-related measurement reports to eNodeBs. Instead, eNodeBs use SON-dedicated measurements (with purpose set to ReportStrongestCellsForSON) to instruct UEsto report missing neighboring UTRAN cells.

According to 3GPP TS 36.331 of versions earlier than V10.12.0, if the eNodeB delivers theANR-related measurement configuration of a UTRAN frequency where 32 cells operate,certain UEs cannot send measurement reports of the UTRAN frequency for ANR. In 3GPPTS 36.331 of version V10.12.0 or later, the preceding principle has been modified. In themeasurement configuration for ANR, the maximum number of adjacent cells is equal to theprotocol-defined value minus one.McUtranNcellNumOptSwtich(McUtranNcellNumOptSwtich) of theENodeBAlgoSwitch.HoSignalingOptSwitch parameter controls whether the modificationtakes effect. If this option is selected, the modification takes effect. If this option deselected,this modification does not take effect.

UEs can report missing neighboring GERAN cells by sending B1- or B2-related measurementreports to eNodeBs. According to 3GPP TS 36.331 V11.6.0, if the eNodeB includes the IEcellForWhichToReportCGI in the measurement configuration, the IE MeasObjectGERANincludes only one GERAN ARFCN. In versions earlier than V11.6.0, the IEMeasObjectGERAN can include multiple GERAN ARFCNs. If the IE includes multipleGERAN ARFCNs, some UEs may not report CGIs. To address this, the number of GERANARFCNs that can be included is modified in the 3GPP specifications.GeranAnrMcOptSwitch of the GlobalProcSwitch.ProtocolMsgOptSwitch parametercontrols whether the modification takes effect. If this option is selected, the modification takeseffect. If this option deselected, this modification does not take effect.

Whether an eNodeB selects UEs performing VoLTE services to perform event-triggered ANRwith UTRAN and GERAN is controlled by the ANR.EventAnrWithVoipMode parameter.

l The eNodeB selects UEs performing services with a QCI of 1 for measurements relatedto event-triggered ANR with UTRAN only if theUTRAN_EVENT_ANR_WITH_VOIP_MODE option of this parameter is selected.

l The eNodeB selects UEs performing services with a QCI of 1 for measurements relatedto event-triggered ANR with GERAN only if theGERAN_EVENT_ANR_WITH_VOIP_MODE option of this parameter is selected.

The lengths of time that UEs perform CGI reading for event-triggered ANR with UTRAN andGERAN are specified by the ANR.UtranEventAnrCgiTimer andANR.GeranEventAnrCgiTimer parameters, respectively. If a UE fails to read the CGI of anadjacent cell within the lengths of time, the eNodeB removes the measurement configurationrelated to CGI reading.

4.2.2 Automatic Maintenance of NCLs and NRTs

4.2.2.1 Adding an NCL/NRT Entry

When event-triggered ANR detects a missing neighboring cell, the eNodeB performs thefollowing:

If ANR detects a missing intra- or inter-RAT neighboring cell by using event-triggered UEmeasurements, the source eNodeB adds the detected cell to an NCL and then adds theneighbor relationship with the detected cell to an NRT of the source cell. Specifically, if theEARFCN and PCI of the detected intra-RAT cell contained in an intra-RAT handover



29

measurement report exist in the NCL but not in NRTs, the eNodeB takes theANR.EventAnrMode parameter setting into consideration:l If this parameter is set to NOT_BASED_NCL(NOT_BASED_NCL), the eNodeB

instructs the UE to read the ECGI of the detected cell again. If the reported ECGI existsin the NCL, the eNodeB adds the neighbor relationship with the detected cell into anNRT of the source cell. If the reported ECGI does not exist in the NCL, the eNodeB addsthe detected cell to the NCL and adds the neighbor relationship with the detected cell toan NRT of the source cell. If the source eNodeB detects that the source cell and thedetected cell are intra-eNodeB cells based on the EARFCN and PCI of the detected cellreported by the UE, the source cell triggers an ECGI reading procedure. According to theECGI reading results, the source eNodeB adds the neighbor relationship with thedetected cell to an NRT of the source cell.

l If this parameter is set to BASED_NCL(BASED_NCL), the eNodeB directly adds theneighbor relationship with the detected cell to an NRT of the source cell. If the sourceeNodeB detects that the source cell and detected cell are intra-eNodeB cells based on theEARFCN and PCI of the detected cell reported by the UE, the source eNodeB does nottrigger the ECGI reading procedure. The eNodeB directly adds the neighbor relationshipwith the detected cell to an NRT of the source cell and adds the neighbor relationshipwith the source cell to an NRT of the detected cell.

If event-triggered ANR with UTRAN or GERAN detects a missing neighboring cell, theeNodeB takes the ANR.UtranEventAnrMode or ANR.GeranEventAnrMode parametersetting in to consideration when adding the detected cell to an NCL and adding the neighborrelationship with the detected cell to an NRT of the source cell. The principle is the same asthat for intra-RAT event-triggered ANR.

4.2.2.2 Modifying an NCL EntryAfter a UE reports the ECGI or CGI of a missing neighboring cell to an eNodeB, the eNodeBchecks whether the reported information about the detected cell is consistent with the externalcell information in the NCL. If the reported information is inconsistent with the external cellinformation, the eNodeB automatically synchronizes the NCL with the reported information.The reported information varies depending on RATs:l For an intra-RAT neighboring cell, the information includes the downlink EARFCN,

PCI, TAC, PLMN list, and secondary frequency band.l For a neighboring UTRAN cell, the information includes the downlink UARFCN,

scrambling code, LAC, RAC, PLMN list, and secondary frequency band.l For a neighboring GERAN cell, the information includes the BSIC, RAC, ARFCN, and

band indicator.

4.2.2.3 Removing an NCL/NRT EntryANR can automatically remove the external cell or neighbor relationship if the Control Modeparameter for the external cell or neighbor relationship is set to AUTO_MODE(Auto Mode).ANR now supports three types of automatic neighbor relationship removal:

l Removal of inappropriate neighbor relationshipsl Removal of redundant neighbor relationshipsl Priority-based removal when the number of neighbor relationships reaches its maximum

(hereinafter referred to as priority-based removal)

Table 4-4 describes options that control the automatic removal functions. The functions areenabled if the corresponding options are selected.



30

Table 4-4 Options controlling the automatic removal functions

Functions Priority-basedRemoval

Removal ofInappropriateNeighborRelationships

Removal ofRedundant NeighborRelationships

Intra-RATANR

l IntraRatEventAnrSwitch(IntraRatEventAnrSwitch)option of theENodeBAlgoSwitch.AnrSwitchparameter

l IntraRatAnrAuto-DelSwitch(IntraRatAnrAutoDelSwitch) option of theENodeBAlgoSwitch.AnrSwitchparameter

l IntraRatEventAnrSwitch(IntraRatEventAnrSwitch) option oftheENodeBAlgoSwitch.AnrSwitchparameter

l IntraRatAnrAutoDelSwitch(IntraRatAnrAutoDelSwitch)option of theENodeBAlgoSwitch.AnrSwitchparameter

l IntraRatEventAnrS-witch(IntraRatEventAnrSwitch) optionof theENodeBAlgoSwitch.AnrSwitch parameter

l IntraRatAnrAuto-DelSwitch(IntraRatAnrAutoDelSwitch)option of theENodeBAlgoSwitch.AnrSwitch parameter

l EUTRAN_DELREDUNDANCENCELL(EUTRAN_DELREDUNDANCENCELL)option of theANR.NrtDelModeparameter

ANR withUTRAN

l UtranEventAnrSwitch(UtranEventAnrSwitch) optionof theENodeBAlgoSwitch.AnrSwitchparameter

l UtranAutoNrtDeleteSwitch(UtranAutoNrtDeleteSwitch) option of theENodeBAlgoSwitch.AnrSwitchparameter

l UtranEventAnrSwitch(UtranEventAnrSwitch)option of theENodeBAlgoSwitch.AnrSwitchparameter

l UtranAutoNrtDeleteSwitch(UtranAutoNrtDeleteSwitch) optionof theENodeBAlgoSwitch.AnrSwitchparameter

l UTRAN_DELERRORNCELL(UTRAN_DELERRORNCELL)option of theANR.NrtDelMode parameter

l UtranEventAnrSwitch(UtranEventAnrSwitch) option of theENodeBAlgoSwitch.AnrSwitch parameter

l UtranAutoNrtDele-teSwitch(UtranAutoNrtDeleteSwitch)option of theENodeBAlgoSwitch.AnrSwitch parameter

l UTRAN_DELREDUNDANCENCELL(UTRAN_DELREDUNDANCENCELL)option of theANR.NrtDelModeparameter



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Functions Priority-basedRemoval

Removal ofInappropriateNeighborRelationships

Removal ofRedundant NeighborRelationships

ANR withGERAN

l GeranEventAnrSwitch(GeranEventAnrSwitch) optionof theENodeBAlgoSwitch.AnrSwitchparameter

l GeranAutoNrtDeleteSwitch(GeranAutoNrtDeleteSwitch) option of theENodeBAlgoSwitch.AnrSwitchparameter

l GeranEventAnrSwitch(GeranEventAnrSwitch)option of theENodeBAlgoSwitch.AnrSwitchparameter

l GeranAutoNrtDeleteSwitch(GeranAutoNrtDeleteSwitch)option of theENodeBAlgoSwitch.AnrSwitchparameter

l GERAN_DELERRORNCELL(GERAN_DELERRORNCELL)option of theANR.NrtDelMode parameter

l GeranEventAnrSwitch(GeranEventAnrSwitch) option of theENodeBAlgoSwitch.AnrSwitch parameter

l GeranAutoNrtDele-teSwitch(GeranAutoNrtDeleteSwitch)option of theENodeBAlgoSwitch.AnrSwitch parameter

l GERAN_DELREDUNDANCENCELL(GERAN_DELREDUNDANCENCELL)option of theANR.NrtDelModeparameter

NOTE

For details about the maximum number of external cells in an NCL and the maximum number ofneighbor relationships in an NRT, see 3900 Series Base Station MML Command Reference or 3900Series Base Station MO Reference.

Removing a Neighbor Relationship from an NRT

The eNodeB removes from an NRT a neighbor relationship for which the Control Mode andNo remove indicator parameters are set to AUTO_MODE(Auto Mode) andPERMIT_RMV_ENUM(Permit ANR Remove), respectively. ANR now supports threetypes of neighbor relationship removal:

l Priority-based RemovalWhen the number of neighbor relationships in the NRT has reached its maximum, ANRremoves the lowest-priority neighbor relationship before it adds a new neighborrelationship.If event-triggered ANR with E-UTRAN, UTRAN, GERAN, or CDMA2000 is enabled, ameasurement period specified by the ANR.StatisticPeriodForNRTDel parameter starts.The eNodeB determines whether to remove the neighbor relationship with a neighboringcell based on the number of handovers from the local cell to the neighboring cell withinthe last measurement period, the number of measurement reports that include the



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neighboring cell within the last measurement period, and the frequency priorities forANR.Figure 4-3 shows the procedure.

Figure 4-3 Priority-based removal

NOTE

During priority-based removal when the number of neighbor relationships reaches its maximum,the eNodeB preferentially removes the neighbor relationship for which the No handoverindicator parameter is set to PERMIT_HO_ENUM(Permit Ho) from the candidate neighborrelationships.

l Removal of inappropriate neighbor relationshipsThis function can work in the eNodeB level or cell level.– If the IntraRatAnrAutoDelSwitch(IntraRatAnrAutoDelSwitch) option of the

ENodeBAlgoSwitch.AnrSwitch parameter is selected, this function works in theeNodeB level. If event-triggered ANR with E-UTRAN, UTRAN, or GERAN isenabled, a measurement period specified by the ANR.StatisticPeriod parameterstarts. If the number of handovers from any cell served by the local eNodeB to aneighboring cell reaches the value of the ANR.NcellHoStatNum parameter and thehandover success rate is less than or equal to the value of the ANR.DelCellThdparameter within the measurement period, the eNodeB removes the neighborrelationships with this neighboring cell from the NRT and removes the external cellfrom the NCL.

– If the IntraRatAnrAutoDelSwitch(IntraRatAnrAutoDelSwitch) option of theENodeBAlgoSwitch.AnrSwitch parameter is selected and the ANR.NrtDelModeparameter is set toEUTRAN_DELCELLERRORNCELL(EUTRAN_DELCELLERRORNCELL), this function works in the cell level. If the number of handovers from a cell (forexample, cell A) served by the local eNodeB to a neighboring cell (for example,



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cell B) reaches the value of the ANR.NcellHoStatNum parameter and the handoversuccess rate is less than or equal to the value of the ANR.DelCellThd parameter, thelocal eNodeB removes the neighbor relationship of cell A with cell B. In addition, ifcell B is not configured as a neighboring cell of any other cell served by the localeNodeB, the eNodeB removes cell B from the NCL.

The first removal method applies to scenarios where RRUs are not used, and the secondremoval method applies to scenarios where RRUs are used.

NOTE

In ANR, RRC connection reestablishments are not counted in the number of handover attemptsand the number of successful handovers. The measurement methods of the two numbers aredifferent from those of the related performance counters.

l Removal of redundant neighbor relationshipsThis removal function takes effect on redundant neighbor relationships with E-UTRAN,UTRAN, and GERAN cells. A neighbor relationship is redundant if the number ofhandovers from the local cell to the neighboring cell of a RAT is 0 but the total numberof handovers from the local cell to all its neighboring cells of the RAT is greater than orequal to the ANR.StatisticNumForNRTDel parameter value within each of fourconsecutive measurement periods defined by the ANR.StatisticPeriodForNRTDelparameter. This removal function takes effect on intra-frequency neighbor relationshipsonly when the local cell is configured with more than 32 intra-frequency neighboringcells. This restriction does not apply to neighbor relationships with inter-frequency E-UTRAN cells, UTRAN cells, or GERAN cells.This function does not apply to the neighboring cells that meet either of the followingconditions:– The blind-handover priority is set to a non-zero value.– The Overlap Indicator parameter is set to YES(YES).– The No handover indicator parameter is set to FORBID_HO_ENUM(Forbid

Ho).– The Plmn List Type parameter is set to GREY_LIST(GREY_LIST).



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NOTE

If the No handover indicator, No remove indicator, and Control Mode parameters for a neighborrelationship are set to FORBID_HO_ENUM(Forbid Ho), PERMIT_RMV_ENUM(Permit ANRRemove), and AUTO_MODE(Auto Mode), respectively, the eNodeB can automatically remove theneighbor relationship. To prevent automatic removal, set the No remove indicator parameter toFORBID_RMV_ENUM(Forbid ANR Remove) or set the Control Mode parameter toMANUAL_MODE(Manual Mode).When removing redundant neighbor relationships, the eNodeB evaluates redundant neighborrelationships based on the distribution of the numbers of handovers from a local cell to all itsneighboring cells. This function applies to handover scenarios where the target cell or target frequency isnot specified. In the following scenarios, you are advised to disable this function to preventmeasurement-based redirection from being affected by mistakenly removed neighbor relationships.

l Both blind handover and measurement-based redirection are enabled.

l Both CSFB or SRVCC to a specific target frequency and measurement-based redirection areenabled.

l Both service-based handover and measurement-based redirection are enabled.

In scenarios where neighboring cells are across the borders of different PLMNs, if inter-PLMNneighboring frequencies are contained in the measurement configuration delivered by the source cell,UEs are instructed to perform ANR measurements on inter-PLMN neighboring cells. If themeasurement results meet the conditions for adding a cell to an NCL and adding a neighbor relationshipto an NRT, such an inter-PLMN neighboring cell and the neighbor relationship with this cell are addedto the NCL and NRT, respectively. This prevents the UEs from repeatedly reading the CGIs of inter-PLMN neighboring cells, which consumes UE power. This also helps find possible PCI conflicts, whichaffect handovers.

Even though ANR may add a neighbor relationship with an inter-PLMN cell, whether UEs are allowedto be handed over to this neighboring cell is determined according to the PLMN selection principles formobility management. For details about the principles, see Intra-RAT Mobility Management inConnected Mode Feature Parameter Description and Inter-RAT Mobility Management in ConnectedMode Feature Parameter Description.

When a neighbor relationship with an E-UTRAN cell or UTRAN cell is automaticallyremoved by ANR, the punishment mechanism of removed neighbor relationships can preventthis neighbor relationship from being added back to the NRT within a short period. Themechanism works as follows:

l Punishment mechanism of removed neighbor relationships with E-UTRAN cellsWhen a neighbor relationship with an E-UTRAN cell is automatically removed by ANR,the eNodeB stores the neighbor relationship in an eNodeB-maintained temporary list. Ifthe number of times the neighbor relationship needs to be added to the intra-RAT NRT isgreater than or equal to the ANR.EutranNcellDelPunNum parameter value within ameasurement period specified by ANR.NcellDelPunishPeriod, the eNodeB re-adds theneighbor relationship to the NRT. Otherwise, the neighbor relationship cannot be re-added to the NRT by ANR.

l Punishment mechanism of removed neighbor relationships with UTRAN cellsWhen a neighbor relationship with a UTRAN cell is automatically removed by ANR, theeNodeB stores the neighbor relationship in an eNodeB-maintained temporary list. If thenumber of times the neighbor relationship needs to be added to the UTRAN NRT isgreater than or equal to the ANR.UtranNcellDelPunNum parameter value within ameasurement period specified by ANR.NcellDelPunishPeriod, the eNodeB re-adds theneighbor relationship to the NRT. Otherwise, the neighbor relationship cannot be re-added to the NRT by ANR.



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NOTE

Removed neighbor relationships under punishment are stored on a temporary list in the eNodeB. The listis cleared if the eNodeB reset. The list can be regenerated after the punishment mechanism evaluatesneighbor relationships again. If the punishment mechanism is active, the number of neighborrelationships may increase after the eNodeB is reset and the number can restore by using the punishmentmechanism.

Removing an External Cell from an NCLThe eNodeB removes from an NCL an external cell for which the Control Mode parameter isset to AUTO_MODE(Auto Mode) if one of the following conditions is met:

l When the number of external cells in an intra-RAT NCL has reached its maximum, anew external cell needs to be added by ANR.If no cells served by the local eNodeB have a neighbor relationship with an external cell,the eNodeB removes the external cell from the NCL.This operation is not parameter-controlled.

l The external cell is redundant.If event-triggered ANR with E-UTRAN, UTRAN, or GERAN is enabled, ameasurement period specified by the ANR.StatisticPeriodForNRTDel parameter starts.At the end of four consecutive measurement periods, the eNodeB removes the externalcell that meets certain conditions.In intra-RAT event-triggered ANR, the eNodeB removes the external cell that meets bothof the following conditions:– No cells served by the local eNodeB have a neighbor relationship with the external

cell.– No X2 interface is set up between the local eNodeB and the eNodeB that serves the

external cell.In inter-RAT event-triggered ANR, the eNodeB removes the external cell from the NCLif no cells served by the local eNodeB have a neighbor relationship with the external cell.

4.2.3 Detection of Abnormal Intra-RAT Neighboring CellCoverage

Intra-RAT event-triggered ANR can detect intra-RAT neighboring cells that provide abnormalcoverage. As shown in Figure 4-4, if UEs in cell A detect signals from cell B, ANR considerscell B to be a neighboring cell of cell A and adds cell B to an NCL and NRT. However, from atopology perspective, the two cells do not meet neighbor relationship requirements. In thissituation, the coverage of cell B is regarded as being abnormal. This type of coverage is alsocalled overshoot coverage. Overshoot coverage causes that UEs are handed over toinappropriate target cells, affecting handover-related KPIs.



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Figure 4-4 Abnormal neighboring cell coverage

If the IntraRatEventAnrSwitch(IntraRatEventAnrSwitch) option of theENodeBAlgoSwitch.AnrSwitch parameter is selected, the U2000 triggers the algorithm fordetecting abnormal neighboring cell coverage at an operator's request. The U2000 checks forabnormal neighboring cell coverage based on the latitudes and longitudes of the serving celland its neighboring cells. Then, the U2000 collects statistics about abnormal neighboring cellcoverage and generates a list of neighboring cells with abnormal coverage.

NOTE

The algorithm for automatically detecting abnormal neighboring cell coverage requires accuratelatitudes and longitudes of the eNodeBs and sectors. If the latitudes and longitudes are not set orincorrectly set, the detection results may be inaccurate.

To view neighboring cells with abnormal coverage, perform the following steps:

Step 1 Log in to the U2000 client.

Step 2 Choose SON > LTE ANR.

Step 3 On the Neighboring Cell Management tab page, view the neighboring cells in the QueryCross-Coverage Cell pane.

----End

4.3 Intra- and Inter-RAT Fast ANRIntra- and inter-RAT fast ANR detects missing neighboring cells based on periodic UEmeasurement reports and adds the missing neighboring cells.

Intra-RAT fast ANR is controlled by the IntraRatFastAnrSwitch(IntraRatFastAnrSwitch)option of the ENodeBAlgoSwitch.AnrSwitch parameter and the frequency-specific ANRindicators. For details, see 4.2 Intra- and Inter-RAT Event-triggered ANR.

Fast ANR with GERAN and fast ANR with UTRAN are controlled by theGeranFastAnrSwitch(GeranFastAnrSwitch) andUtranFastAnrSwitch(UtranFastAnrSwitch) options of the ENodeBAlgoSwitch.AnrSwitchparameter, respectively and the frequency-specific ANR indicators. For details, see 4.2 Intra-and Inter-RAT Event-triggered ANR.



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Intra- and inter-RAT fast ANR support terminal awareness differentiation, the principles forwhich are the same as that for event-triggered ANR. For details, see 4.2 Intra- and Inter-RAT Event-triggered ANR.

4.3.1 Automatic Detection of Missing Neighboring CellsDuring a detection procedure, the eNodeB determines whether to select CA UEs to performfast ANR measurements based on the ANR.CaUeChoseMode parameter setting. For detailsabout the selection rules, see 4.2.1 Automatic Detection of Missing Neighboring Cells.

Figure 4-5 illustrates the procedure for using fast ANR to detect missing neighboring cells.



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Figure 4-5 Procedure for using fast ANR to detect missing neighboring cells

The procedure is as follows:

1. An eNodeB starts a fast ANR check period (whose duration is specified by theANR.FastAnrCheckPeriod parameter) and selects N UEs to simultaneously performfast ANR measurements.– In intra-RAT fast ANR, N is specified by the ANR.FastAnrIntraRatMeasUeNum

parameter.



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– In inter-RAT fast ANR, N is specified by the ANR.FastAnrInterRatMeasUeNumparameter.

UEs performing voice over IP (VoIP) services do not perform fast ANR measurements.If a UE initiates VoIP services and sets up bearers with QCI1 after being selected toperform fast ANR measurements, the eNodeB takes different actions on themeasurement configuration delivered to the UE depending on the setting of theGlobalProcSwitch.VoipWithGapMode parameter.– If this parameter is set to ENABLE(enable), the eNodeB does not delete the fast-

ANR-related measurement configuration.– If this parameter is set to DISABLE(disable), the eNodeB delivers the RRC

measurement reconfiguration to the UE and deletes the fast-ANR-relatedmeasurement configuration.

When inter-frequency measurements are required, the source eNodeB must deliver theinter-frequency measurement configuration to the UE to set up measurement gaps. Twogap patterns are defined in section 8.1.2 "Requirements" of 3GPP TS 36.133 V10.2.0:pattern 0 and pattern 1. To speed up the measurements, the eNodeB uses pattern 0 bydefault. In pattern 0, the measurement gap length is 6 ms, and the repetition period is 40ms.

2. To speed up the measurements, the eNodeB uses pattern 0 by default. The UEs sendmeasurement reports at an interval specified by the ANR.FastAnrRprtIntervalparameter to the eNodeB. The measurement reports contain neighboring cells whosesignal quality is higher than or equal to the corresponding threshold. The maximumnumber of periodic measurement reports that a UE can send is specified by theANR.FastAnrRprtAmount parameter. The following table lists the signal qualitythresholds for different RATs.

RAT Signal Quality Threshold

E-UTRAN Reference signal received power (RSRP) threshold,specified by the ANR.FastAnrRsrpThd parameter

UTRAN Received signal code power (RSCP) threshold,specified by the ANR.FastAnrRscpThd parameter

GERAN Received signal strength indicator (RSSI) threshold,specified by the ANR.FastAnrRssiThd parameter

– If intra-RAT fast ANR or fast ANR with GERAN is enabled, it is recommendedthat ANR.FastAnrRprtAmount should not be set to r1(1). This is because a UEmay report only the serving cell information in the first measurement report duringintra-RAT fast ANR and fast ANR with GERAN. According to section 5.5.4.1"General" in 3GPP TS 36.331 V10.1.0, if purpose is set to reportStrongestCells, theUE initiates a first measurement report immediately after the quantity to be reportedbecomes available for at least either all serving cells or one of the applicable cells.A measurement report can contain multiple adjacent E-UTRAN or GERAN cells.

– For fast ANR with UTRAN, the eNodeB sets purpose toreportStrongestCellsForSON for fast ANR measurements. According to section6.3.5 "Measurement information elements" of 3GPP TS 36.331 V10.1.0, whenpurpose is set to reportStrongestCellsForSON, reportAmount takes only value 1,which means that the UE sends only one measurement report to the eNodeB when



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the reporting condition is met. In this case, the user-defined reporting interval doesnot take effect. For the UEs to send periodic measurement reports, the fast ANRalgorithm reconfigures measurement IEs with purpose set toreportStrongestCellsForSON for the UEs at a fixed interval of 5s.A measurement report contains only the strongest adjacent UTRAN cell.

3. Based on check results in a fast ANR check period, the eNodeB performs the following:– If an unknown cell is reported, the eNodeB sets the number of UEs that have

performed measurements in the check period to 0 and then selects N UEs toperform measurements. If the UEs report multiple adjacent E-UTRAN or GERANcells, the eNodeB instructs the UEs to read the ECGI or CGI of only the first cell.Then, the eNodeB adds the detected cell to an NCL and NRT. For details about thepolicies for adding the cell to the NCL and NRT, see 4.3.2.1 Adding an NCL/NRTEntry.In intra-RAT fast ANR, N is specified by the ANR.FastAnrIntraRatMeasUeNumparameter.In inter-RAT fast ANR, N is specified by the ANR.FastAnrInterRatMeasUeNumparameter.

– If no unknown cell is reported, the check period ends. The eNodeB checks the totalnumber of UEs that have performed measurements. If the total number is less thanthe threshold M, the eNodeB starts the next round of fast ANR measurements. If thetotal number is greater than or equal to M, the eNodeB enters the monitoring state.In this state, the eNodeB does not select UEs to perform fast ANR measurementsand the eNodeB monitors whether event-triggered ANR measurement reportscontain the PCI, scrambling code, or BSIC of an unknown cell. If a measurementreport contains the PCI, scrambling code, or BSIC of an unknown cell, the eNodeBexits the monitoring state and starts fast ANR measurements again. Otherwise, theeNodeB keeps in the monitoring state.In intra-RAT fast ANR, M is specified by the ANR.FastAnrIntraRatUeNumThdparameter.In inter-RAT fast ANR, M is specified by the ANR.FastAnrInterRatUeNumThdparameter.

4.3.2 Automatic Maintenance of NCLs and NRTs

4.3.2.1 Adding an NCL/NRT Entry

If fast ANR detects a missing neighboring cell, the eNodeB updates an NCL and NRT. Theupdate policy varies depending on RATs:

l Intra-RAT fast ANRIf fast ANR detects missing intra-frequency neighboring cells, the eNodeB handles thedetected cells as follows:– If the ANR.FastAnrMode parameter is set to NCL_NRT_MODE(NCL and NRT

Mode), the eNodeB does not add the strongest or second strongest intra-eNodeBmissing neighboring cell to the NCL or add the neighbor relationship with this cellto the NRT. In addition, the eNodeB adds the strongest or second strongest inter-eNodeB missing neighboring cell to the NCL.

– If the ANR.FastAnrMode parameter is set to NCL_MODE(NCL Mode), theeNodeB does not add the strongest or second strongest intra-eNodeB missing



41

neighboring cell to the NCL or add the neighbor relationship with this cell to theNRT. In addition, the eNodeB adds the strongest or second strongest inter-eNodeBmissing neighboring cell to the NCL.

– If the ANR.FastAnrMode is set to NRT_MODE(NRT_MODE), the eNodeBinstructs the UE to read the ECGI of the strongest or second strongest intra- orinter-eNodeB missing neighboring cell and does not add the neighbor relationshipwith this cell to the NRT based on the information in the NCL. Based on the ECGIreading results, the eNodeB adds the neighbor relationship with the strongest orsecond strongest intra- or inter-eNodeB missing neighboring cell to the NRT andadds the strongest or second strongest inter-eNodeB missing neighboring cell to theNCL.

If fast ANR detects missing inter-frequency neighboring cells, the eNodeB handles thedetected cells as follows:– If the ANR.FastAnrMode is set to NCL_NRT_MODE(NCL and NRT Mode),

the eNodeB adds the neighbor relationship with the strongest intra- or inter-eNodeBmissing neighboring cell to the NRT and adds the strongest inter-eNodeB missingneighboring cell to the NCL. In addition, the eNodeB does not add the secondstrongest intra-eNodeB missing neighboring cell to the NCL or add the neighborrelationship with this cell to the NRT. Besides that, the eNodeB adds the secondstrongest inter-eNodeB missing neighboring cell to the NCL.

– If the ANR.FastAnrMode parameter is set to NCL_MODE(NCL Mode), theeNodeB does not add the strongest or second strongest intra-eNodeB missingneighboring cell to the NCL or add the neighbor relationship with this cell to theNRT. In addition, the eNodeB adds the strongest or second strongest inter-eNodeBmissing neighboring cell to the NCL.

– If the ANR.FastAnrMode is set to NRT_MODE(NRT_MODE), the eNodeBinstructs the UE to read the ECGI of the strongest or second strongest intra- orinter-eNodeB missing neighboring cell and does not add the neighbor relationshipwith this cell to the NRT based on the information in the NCL. Based on the ECGIreading results, the eNodeB adds the neighbor relationship with the strongest orsecond strongest intra- or inter-eNodeB missing neighboring cell to the NRT andadds the strongest or second strongest inter-eNodeB missing neighboring cell to theNCL.

l Fast ANR with GERAN– If the ANR.FastAnrMode parameter is set to NCL_NRT_MODE(NCL and NRT

Mode), the eNodeB adds the strongest missing neighboring cell to the NCL andadds the neighbor relationship with this cell to the NRT. In addition, the eNodeBadds the second strongest missing neighboring cell to the NCL.

– If the ANR.FastAnrMode parameter is set to NCL_MODE(NCL Mode), theeNodeB adds the strongest and second strongest missing neighboring cells to theNCL.

– If the ANR.FastAnrMode parameter is set to NRT_MODE(NRT_MODE), theeNodeB does not add the detected cells to the NRT based on the information in theNCL. Instead, the eNodeB instructs UEs to perform CGI reading and adds thestrongest and second strongest missing neighboring cells to the NCL and adds theneighbor relationships with these cells to the NRT.

l Fast ANR with UTRAN– If the ANR.FastAnrMode parameter is set to NCL_NRT_MODE(NCL and NRT

Mode), the eNodeB adds the strongest missing neighboring cell to the NCL andadds the neighbor relationship with this cell to the NRT.



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– If the ANR.FastAnrMode parameter is set to NCL_MODE(NCL Mode), theeNodeB adds the strongest missing neighboring cell to the NCL.

– If the ANR.FastAnrMode parameter is set to NRT_MODE(NRT_MODE), theeNodeB does not add the detected cells to the NRT based on the information in theNCL. Instead, the eNodeB instructs UEs to perform CGI reading and adds thestrongest and second strongest missing neighboring cells to the NCL and adds theneighbor relationships with these cells to the NRT.

4.3.2.2 Modifying an NCL EntryFast ANR modifies external cells in NCLs in the same way as event-triggered ANR. Fordetails, see 4.2.2.2 Modifying an NCL Entry.

4.4 Intra-RAT Backward ANRIntra-RAT backward ANR adds a neighbor relationship of a target cell with a source cell in ahandover.

Intra-RAT backward ANR is controlled by theIntraRatEventAnrSwitch(IntraRatEventAnrSwitch) orIntraRatFastAnrSwitch(IntraRatFastAnrSwitch) option of theENodeBAlgoSwitch.AnrSwitch parameter.

If inter-frequency E-UTRAN cells are mutually configured as neighboring cells of each otherin a network, you are advised to activate intra-RAT backward ANR. Otherwise, you areadvised to deactivate intra-RAT backward ANR.

4.4.1 Automatic Detection of Missing Neighboring CellsIf a neighbor relationship with an inter-eNodeB cell of a local cell is added to the NRT of thelocal cell, a neighbor relationship with the local cell of the inter-eNodeB cell can be added tothe NRT of the inter-eNodeB cell based on UE history information. According to section9.2.1.42 "UE History Information" of 3GPP TS 36.413 V10.1.0 and section 9.2.38 "UEHistory Information" of 3GPP TS 36.423 V10.1.0, the IE UE History Information containsinformation about cells that a UE has been served by in active state prior to the target cell.The information includes the ECGI, cell type, and duration of stay.

Figure 4-6 illustrates the procedure for using UE history information to detect a missingintra-RAT neighboring cell. This procedure is triggered by an intra-RAT handover.



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Figure 4-6 Procedure for using UE history information to detect a missing intra-RATneighboring cell

1. The source eNodeB sends a handover request message to the target eNodeB.2. After obtaining the UE history information from the message, the target eNodeB checks

whether the ECGI of the last visited cell (in this example, the source cell) exists in theintra-RAT NCL and an intra-RAT NRT of the target eNodeB. The target eNodeB thenproceeds as follows:– If the ECGI exists in the NCL but does not exist in the NRT, the target eNodeB adds

the neighbor relationship with the source cell to the NRT and the procedure ends.– If the ECGI does not exist in the NCL, the target eNodeB proceeds to 3.

3. The target eNodeB reports the ECGI of the source cell to the U2000.4. The U2000 queries the PCI, TAC, and PLMN list of the source cell identified by the

reported ECGI and sends the results to the target eNodeB. Then, the target eNodeB addsthe missing neighboring cell to an NCL, and the procedures ends. For details, see 4.4.2Automatic Maintenance of NCLs and NRTs. If the target cell and source cell are notmanaged by the same U2000, operators can import the information of the target cell tothe U2000 that manages the source cell. Then, intra-RAT backward ANR can work. Fordetails about how to import neighboring cell information to a U2000, see 11.3.2Requirements.

If a neighbor relationship with an intra-eNodeB cell is added to the NRT of a serving cell orthe serving cell initiates a handover to the intra-eNodeB neighboring cell, the serving eNodeBadds the neighbor relationship with the serving cell to the NRT of the intra-eNodeB cell.

4.4.2 Automatic Maintenance of NCLs and NRTsIf ANR detects a missing intra-RAT inter-eNodeB neighboring cell by using UE historyinformation, the target eNodeB checks whether its intra-RAT NCL and an intra-RAT NRTinclude the detected cell. If the NCL does not include the detected cell, the target eNodeBadds the cell only to the NCL. If the NCL includes the detected cell, the target eNodeB addsthe neighbor relationship with the detected cell to an intra-RAT NRT of the target cell.

If a neighbor relationship with an intra-eNodeB cell is added to the NRT of a serving cell orthe serving cell initiates a handover to the intra-eNodeB neighboring cell, the serving eNodeBadds the neighbor relationship with the serving cell to the NRT of the intra-eNodeB cell.



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After detecting the missing neighboring cell, the target eNodeB checks whether its intra-RATNCL and an NRT include the ECGI of the missing neighboring cell and then performs thefollowing:

l If the ECGI exists in the NCL but does not exist in the NRT, the target eNodeB adds theneighbor relationship with the source cell to the NRT. For details, see 4.2.2.1 Adding anNCL/NRT Entry.

l If the ECGI does not exist in the NCL, the target eNodeB adds the source cell to theNCL. For details, see 4.2.2.1 Adding an NCL/NRT Entry.

4.5 Automatic Optimization of Neighbor RelationshipAttributes

4.5.1 Automatic Optimization of Neighbor Relationships withCells of Abnormal Success Rates of Intra-RAT Handovers

ANR can automatically identify neighbor relationships with cells of which the handoverstatistics are abnormal and optimizes the abnormal neighbor relationships. This functionprevents handover failures due to abnormal neighbor relationships and maintains a stablehandover success rate. This function is supported by only intra-RAT event-triggered ANR.

This function is activated if both the IntraRatEventAnrSwitch(IntraRatEventAnrSwitch)and IntraRatNoHoSetAnrSwitch(IntraRatNoHoSetAnrSwitch) options of theENodeBAlgoSwitch.AnrSwitch parameter are selected.

After this function is enabled, the eNodeB proceeds as follows based on theANR.NoHoSetMode parameter setting:

l If the ANR.NoHoSetMode parameter is set to NO_CHECK(NO_CHECK), when aneighbor relationship meets all of the following conditions at the end of a measurementperiod defined by ANR.StatisticPeriod,– The number of handovers from the local cell to the neighboring cell is greater than

or equal to the ANR.NcellHoStatNum parameter value.– The success rate of handovers from the local cell to the neighboring cell is less than

or equal to the ANR.NOHOSetThd parameter value.– The Control Mode parameter for the neighbor relationship is set to

AUTO_MODE(Auto Mode).Then ANR automatically sets the No handover indicator parameter toFORBID_HO_ENUM(Forbid Ho) for the neighbor relationship.

l If the ANR.NoHoSetMode parameter is set to PCI_CHECK(PCI_CHECK), when aneighbor relationship meets all of the following conditions at the end of a measurementperiod defined by ANR.StatisticPeriod,– The number of handovers from the local cell to the neighboring cell is greater than

or equal to the ANR.NcellHoStatNum parameter value.– The Control Mode parameter for the neighbor relationship is set to

AUTO_MODE(Auto Mode).Then, if the success rate of handovers from the local cell to the neighboring cell is lessthan or equal to 80%, the eNodeB instructs the UE to read the ECGI of this cell when aUE reports a measurement report for an intra-RAT handover containing the EARFCN



45

and PCI of the neighboring cell within the next measurement period. If this cell is anunknown cell, the eNodeB adds this cell to the NCL and adds the neighbor relationshipwith this cell to an NRT.In addition, if the success rate of handovers from the local cell to the neighboring cell iscontinuously less than or equal to the ANR.NOHOSetThd parameter value forconsecutive two measurement periods (including the measurement period within whichthe ECGI reading is performed), ANR automatically sets the No handover indicatorparameter to FORBID_HO_ENUM(Forbid Ho) for the neighbor relationship.Otherwise, the success rate is considered as normal, ANR does not change the Nohandover indicator parameter value.

After ANR sets the No handover indicator parameter to FORBID_HO_ENUM(Forbid Ho)for a neighbor relationship, ANR cannot automatically revert the attribute setting. Operatorsshould manually optimize or remove this neighbor relationship. After optimizing therelationship, operators should manually set the No handover indicator parameter toPERMIT_HO_ENUM(Permit Ho).

NOTE

If the ANR.NoHoSetMode parameter is set to PCI_CHECK(PCI_CHECK), it is recommended thatthe ANR.NOHOSetThd parameter be set to a value less than 80; otherwise, ANR may directly set theNo handover flag parameter to FORBID_HO_ENUM(Forbid Ho) for the neighbor relationshipwithout instructing the UE to perform ECGI reading.

If both the IntraRatAnrAutoDelSwitch(IntraRatAnrAutoDelSwitch) andIntraRatNoHoSetAnrSwitch(IntraRatNoHoSetAnrSwitch) options of theENodeBAlgoSwitch.AnrSwitch parameter are selected, the default value 0% is recommended for theANR.DelCellThd parameter. This setting prevents an abnormal neighbor relationship from beingremoved because of a low handover success rate immediately after its No handover indicatorparameter is set to FORBID_HO_ENUM(Forbid Ho).

In ANR, RRC connection reestablishments are not counted in the number of handover attempts and thenumber of successful handovers. The measurement methods of the two numbers are different from thoseof the related performance counters.

4.5.2 Neighboring Cell ClassificationThis section describes LOFD-081225 Neighbor Cell Classification Management.

The function of neighboring cell classification applies only to intra-RAT neighboring cells.This function classifies neighboring cells based on the handover statistics and performsdifferentiated handling on different types of neighboring cells. This function helps increasesthe efficiency of ANR and improves the experience of operation and maintenance.

Neighbor Relationship Classification

Neighbor relationship classification is activated and a measurement period specified byNCellClassMgt.StatPeriodForNCellClass starts for the local cell if both theIntraRatEventAnrSwitch(IntraRatEventAnrSwitch) option of theENodeBAlgoSwitch.AnrSwitch parameter and theINTRA_RAT_NCELL_CLASS_SW(INTRA_RAT_NCELL_CLASS_SW) option of theCellAlgoSwitch.NCellClassMgtSw parameter are selected and the corresponding frequency-specific ANR indicator is set to ALLOWED(ALLOWED).

NOTE

If the INTRA_RAT_NCELL_CLASS_SW(INTRA_RAT_NCELL_CLASS_SW) option of theCellAlgoSwitch.NCellClassMgtSw parameter is selected, backward ANR does not take effect.



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If the number of handover attempts from the local cell to a neighboring cell is greater than orequal to the NCellClassMgt.HoAttemptThd parameter value within a measurement perioddefined by NCellClassMgt.StatPeriodForNCellClass, the neighbor relationship with thisneighboring cell is regarded as stable. If the neighboring cell is an intra- or inter-frequencyneighboring cell, the eNodeB sets the EutranIntraFreqNCell.NCellClassLabel orEutranInterFreqNCell.NCellClassLabel parameter to FORMAL(FORMAL) for thisneighboring cell, respectively.

If the number of handover attempts from the local cell to a neighboring cell is less than theNCellClassMgt.HoAttemptThd parameter value for each of four consecutive measurementperiods defined by NCellClassMgt.StatPeriodForNCellClass, the neighbor relationship withthis neighboring cell is regarded as unstable. If the neighboring cell is an intra- or inter-frequency neighboring cell, the eNodeB sets the EutranIntraFreqNCell.NCellClassLabel orEutranInterFreqNCell.NCellClassLabel parameter to EXTENDED(EXTENDED) for thisneighboring cell, respectively.

In versions earlier than eRAN8.1, the Neighbor Cell Classification Label parameter is set toFORMAL(FORMAL) by default for automatically or manually configured neighboringrelationships. Operators can manually modify the parameter setting.

NOTE

The value range of the NCellClassMgt.HoAttemptThd parameter is 0 to 10000. If this parameter is setto 0, the Neighbor Cell Classification Label parameter will be set to FORMAL(FORMAL) for allintra-RAT neighbor relationships at the end of a measurement period specified byNCellClassMgt.StatPeriodForNCellClass.

The value range of the NCellClassMgt.StatPeriodForNCellClass parameter is 1 to 50400. Set thisparameter based on the traffic fluctuation of the network. If the traffic volume of the local cell fluctuatesgreatly, set this parameter to a large value, for example, 10080. If the traffic volume of the local celldoes not fluctuate greatly, the default value is recommended.

If either the frequency-specific ANR indicator is set toNOT_ALLOWED(NOT_ALLOWED), or theIntraRatEventAnrSwitch(IntraRatEventAnrSwitch) option of theENodeBAlgoSwitch.AnrSwitch parameter or theINTRA_RAT_NCELL_CLASS_SW(INTRA_RAT_NCELL_CLASS_SW) option of theCellAlgoSwitch.NCellClassMgtSw parameter is deselected, the function of neighborrelationship classification is deactivated and the modified values of the Neighbor CellClassification Label parameter remain unchanged.

Differentiated Handling Based on the Classification Results

An eNodeB performs differentiated handling on different types of neighbor relationships. Thedifferentiation handling includes the following functions:

l Target cell selection for handovers

This function is activated if both theIntraRatEventAnrSwitch(IntraRatEventAnrSwitch) option of theENodeBAlgoSwitch.AnrSwitch parameter and theNCELL_CLASS_HO_POLICY_SW(NCELL_CLASS_HO_POLICY_SW) optionof the CellAlgoSwitch.NCellClassMgtSw parameter are selected and the correspondingfrequency-specific ANR indicator is set to ALLOWED(ALLOWED). This functionimplies differentiated handling on neighbor relationships when an eNodeB selects thetarget cells for handovers.



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– If the Neighbor Cell Classification Label parameter value isFORMAL(FORMAL) for the neighboring cell contained in the measurementreport, the eNodeB selects the target cell using the NRTs.

– If the Neighbor Cell Classification Label parameter value isEXTENDED(EXTENDED) for the neighboring cell contained in the measurementreport, the eNodeB instructs the UE to perform CGI reading. Based on the CGIreading results, the eNodeB determines the target cell.

If either the IntraRatEventAnrSwitch(IntraRatEventAnrSwitch) option of theENodeBAlgoSwitch.AnrSwitch parameter or theNCELL_CLASS_HO_POLICY_SW(NCELL_CLASS_HO_POLICY_SW) optionof the CellAlgoSwitch.NCellClassMgtSw parameter is deselected, this function isdeactivated.

l PCI confusion detectionThe function of PCI conflict alarm reporting is activated only if theENodeBAlgoSwitch.PciConflictAlmSwitch parameter is set to ON(On). The functionof PCI confusion detection is activated only if theCONFUSION_DETECT_SWITCH(CONFUSION_DETECT_SWITCH) option ofthe ENodeBAlgoSwitch.PciConflictDetectSwitch parameter is selected. The function ofdifferentiated handling on neighbor relationships in PCI confusion detection is activatedonly if theNCELL_CLASS_PCI_CONFLICT_SW(NCELL_CLASS_PCI_CONFLICT_SW)option of the CellAlgoSwitch.NCellClassMgtSw parameter is selected.Differentiated handling based on the Neighbor Cell Classification Label parametervalue is implied in PCI confusion detection if theNCELL_CLASS_PCI_CONFLICT_SW(NCELL_CLASS_PCI_CONFLICT_SW)option is selected. If the Neighbor Cell Classification Label parameter is set toFORMAL(FORMAL) for neighbor relationships with two cells of the local cell or isset differently for neighbor relationships with two cells of the local cell, the local cellperforms PCI confusion detection on these two neighboring cells. If this parameter is setto EXTENDED(EXTENDED) for neighbor relationships with two cells of the localcell, the local cell does not perform PCI confusion detection on these two neighboringcells.Differentiated handling based on the Neighbor Cell Classification Label parametervalue is not implied in PCI confusion detection if theNCELL_CLASS_PCI_CONFLICT_SW(NCELL_CLASS_PCI_CONFLICT_SW)option is deselected.For details about the definitions and principles of PCI confusion, see PCI ConflictDetection and Self-Optimization Feature Parameter Description.

l Neighboring cell management in PCI confusion scenariosThis function is activated if both theIntraRatEventAnrSwitch(IntraRatEventAnrSwitch) option of theENodeBAlgoSwitch.AnrSwitch parameter and theINTRA_RAT_NCELL_CLASS_SW(INTRA_RAT_NCELL_CLASS_SW) option ofthe CellAlgoSwitch.NCellClassMgtSw parameter are selected.In scenarios where all of the following conditions are met:– PCI confusions occur between neighbor cells.– The Neighbor Cell Classification Label parameter is set to

FORMAL(FORMAL) for only one of the neighboring cells. This parameter is setto EXTENDED(EXTENDED) for other neighboring cells.



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– The ratio of the number of times of CGI reading on the neighboring cell for whichthe Neighbor Cell Classification Label parameter is set to FORMAL(FORMAL)to the maximum number of times of CGI reading on a neighboring cell for whichthe Neighbor Cell Classification Label parameter is set toEXTENDED(EXTENDED) is greater than or equal to 10.

The eNodeB removes the neighbor relationship with a PCI-confused cell that meets thefollowing conditions:– The Neighbor Cell Classification Label parameter is set to

EXTENDED(EXTENDED) for the neighbor relationship.– The Control Mode parameter is set to AUTO_MODE(Auto Mode) for the

neighbor relationship.– The No remove indicator parameter is set to PERMIT_RMV_ENUM(Permit

ANR Remove).l Neighboring cell query

In the outputs of the DSP EUTRANINTRAFREQNCELL and DSPEUTRANINTERFREQNCELL commands, neighboring cells for which the NeighborCell Classification Label parameter value is FORMAL(FORMAL) are displayed bydefault.

4.5.3 Automatic Optimization of Blind Handover Priorities ofInter-RAT Neighbor Relationships

4.5.3.1 OverviewANR optimizes the Blind handover priority parameter for neighbor relationships withUTRAN and GERAN cells based on inter-RAT handover statistics.

NOTE

For details about the definitions and configurations of the blind handover priorities, see Inter-RATMobility Management in Connected Mode Feature Parameter Description.

This automatic optimization function includes the following:

l ANR automatically identifies the neighboring UTRAN or GERAN cells that cover E-UTRAN cells and changes the blind handover priority of the neighbor relationships withthese UTRAN or GERAN cells from 0 to 1. Figure 4-7 shows an example, in which thecoverage area of a UTRAN or GERAN cell includes that of an E-UTRAN cell. In thisexample, the UTRAN or GERAN cell can be configured as the target cell for blindhandovers from the E-UTRAN cell. Therefore, ANR sets the blind handover priority to 1for the neighbor relationship of the E-UTRAN cell with the UTRAN or GERAN cell.

l After the network topology changes, the existing blind handover priorities may becomeinappropriate, causing network performance deterioration. For example, the blindhandover success rate is low. In this case, ANR automatically changes the blindhandover priorities from a non-zero value to 0.



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Figure 4-7 E-UTRAN cell in UTRAN/GERAN coverage

Automatic optimization of blind handover priorities for neighbor relationships with UTRANor GERAN cells is activated if the UtranBlindNcellOptSwitch orGeranBlindNcellOptSwitch option, respectively, of theENodeBAlgoSwitch.BlindNcellOptSwitch parameter is selected.

This function may generate optimization advice. eNodeBs can deliver the advice in free orcontrolled mode. The delivery mode is specified by the BlindNcellOpt.OptMode parameter.This parameter has two values:

l FREE(FREE): The optimization advice takes effect directly.l CONTROLLED(CONTROLLED): The eNodeB reports the optimization advice to the

U2000, and operators determine whether to take the advice. After the U2000 receives theoptimization advice, the advice is displayed on the U2000 client and can be delivered byoperators, even if the switch for this automatic optimization function is then set to off.

NOTE

If operators do not deliver the optimization advice for a neighbor relationship but manually changethe blind handover priority, the modification takes effect in the U2000 and the updatedoptimization advice is displayed on the U2000 client.

4.5.3.2 Collecting Inter-RAT Handover Statistics

After this automatic optimization function is enabled, a measurement period specified by theBlindNcellOpt.StatisticPeriod parameter starts. Within the measurement period, the eNodeBcollects the performance counters related to inter-RAT handovers to UTRAN or GERAN. Thevalues of these performance counters are used as an input for the U2000 to generateoptimization advice.

The collection procedure is as follows:

1. Within a measurement period, the eNodeB counts the following data:– Number of measurement-based handovers for CSFB from the source E-UTRAN

cell to each individual UTRAN frequency and to each individual GERAN carrierfrequency group

– Number of measurement-based handovers for CSFB from the source E-UTRANcell to each individual neighboring UTRAN or GERAN cell

– Number of blind handover attempts from the source E-UTRAN cell to eachindividual neighboring UTRAN or GERAN cell and number of successful blindhandovers among these attempts

– Number of measurement-based handover attempts from the source E-UTRAN cellto each individual neighboring UTRAN or GERAN cell and number of successfulhandovers among these attempts



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2. At the end of the measurement period, the eNodeB calculates the following data basedon the preceding measurement values:

– Proportion of the number of measurement-based handovers for CSFB from thesource E-UTRAN cell to each individual neighboring UTRAN or GERAN cell tothe number of such handovers from the source E-UTRAN cell to the operatingUTRAN frequency or GERAN carrier frequency group of the neighboring cell,respectively

– Success rate of measurement-based handovers from the source E-UTRAN cell toeach individual neighboring UTRAN or GERAN cell

– Success rate of blind handovers from the source E-UTRAN cell to each individualneighboring UTRAN or GERAN cell

NOTE

All the preceding data is measured on a per cell basis. The data is not operator-specific inRAN sharing scenarios.

4.5.3.3 Generating Optimization Advice for Blind Handover Priorities

Changing the Priority from 0 to 1

ANR changes the blind handover priority from 0 to 1 for a neighboring UTRAN or GERANcell that meets all the following conditions:

l The UtranNFreq.ContinuCoverageIndication orGeranNfreqGroup.ContinuCoverageIndication parameter is set toCONTINUOUS(CONTINUOUS).

l Within the current measurement period, the number of measurement-based handovers forCSFB from the source E-UTRAN cell to the operating UTRAN frequency or GERANcarrier frequency group of the neighboring cell is greater than theBlindNcellOpt.SampleNumThd parameter value.

l Within the current measurement period, the proportion of the number of measurement-based handovers for CSFB from the source E-UTRAN cell to the neighboring cell to thenumber of such handovers from the source E-UTRAN cell to the operating UTRANfrequency or GERAN carrier frequency group of the neighboring cell is greater than orequal to the BlindNcellOpt.CsfbHoAttempRatioThd parameter value.

l Within the current measurement period, the success rate of measurement-basedhandovers from the source E-UTRAN cell to the neighboring cell is greater than or equalto the BlindNcellOpt.HoSuccRateThd parameter value.

Changing the Priority from a Non-zero Value to 0

ANR changes the blind handover priority from a non-zero value to 0 for a neighboringUTRAN or GERAN cell that meets both of the following conditions:

l The number of blind handover attempts from the source E-UTRAN cell to theneighboring cell is greater than the BlindNcellOpt.SampleNumThd parameter value.

l The success rate of blind handovers from the source E-UTRAN cell to the neighboringcell is less than or equal to the BlindNcellOpt.BlindHoSuccRateThd parameter value.



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4.5.4 Automatic Optimization of Measurement Priorities of Inter-RAT Neighboring Cells

ANR optimizes the UtranNCell.NCellMeasPriority and GeranNcell.NCellMeasPriorityparameters for neighbor relationships with UTRAN and GERAN cells based on inter-RATneighboring cell measurement statistics, respectively. A larger parameter value indicates ahigher measurement priority.

NOTE

For details about the definitions and usage of the measurement priorities for neighboring UTRAN andGERAN cells, see Inter-RAT Mobility Management in Connected Mode Feature Parameter Descriptionand CS Fallback Feature Parameter Description.

Automatic optimization of measurement priorities for UTRAN and GERAN cells is activatedif the UTRAN_SWITCH(UTRAN Neighboring Cell Ranking Switch) andGERAN_SWITCH(GREAN Neighboring Cell Ranking Switch) options of theENodeBAlgoSwitch.NCellRankingSwitch parameter are selected, respectively.

After this automatic optimization function is enabled, a measurement period specified by theANR.PeriodForNCellRanking parameter starts.

1. Within the measurement period, the eNodeB collects the number of times each UTRANand each GERAN neighboring cell are contained in the handover measurement reports.

2. At the end of the measurement period, the eNodeB optimizes the measurement prioritiesfor UTRAN and GERAN cells based on the number of times each UTRAN and eachGERAN neighboring cells are contained in the handover measurement reportsindependently.– If a neighboring cell is not contained in any measurement report, the eNodeB sets

the measurement priority for this cell to 0.– For neighboring cells contained in at least one measurement report, the eNodeB

sorts these neighboring cells by the number of times a neighboring cell is containedin the measurement reports in a ascending order. If some cells are contained in themeasurement reports for the same times, the eNodeB sorts the order of these cellsamong them randomly. The eNodeB sets measurement priorities, whose values startfrom 1, for the neighboring cells in the sorting sequence.

4.6 PLMN ID ManagementThis section describes LBFD-081102 PLMN ID Management.

When UEs detect and report neighboring cells with invalid PLMN IDs to an eNodeB, thisfunction implies differentiated management policies for different PLMN IDs. This functionapplies to scenarios where neighboring cells are across the borders of different PLMNs orabnormal UEs report invalid PLMN IDs.

Attributes of a PLMN ID can be manually set in the NCellPlmnList MO. For each PLMNID, operators need to set the attributes by configuring the NCellPlmnList.Mcc,NCellPlmnList.Mnc, NCellPlmnList.RatType, and NCellPlmnList.PlmnListTypeparameters. where

l The NCellPlmnList.Mcc and NCellPlmnList.Mnc parameters indicate the mobilecountry code (MCC) and mobile network code (MNC). A PLMN ID is comprised of anMCC and an MNC.



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l The NCellPlmnList.RatType parameter indicates the RAT of neighboring cells of aPLMN.

l The NCellPlmnList.PlmnListType parameter indicates the type of a PLMN.

– If this parameter is set to BLACK_LIST(BLACK_LIST) for a PLMN, theeNodeB cannot add cells of the PLMN to NCLs or add neighbor relationships withthese cells to NRTs by ANR.

– If this parameter is set to GREY_LIST(GREY_LIST) for a PLMN, the eNodeBcan add cells of the PLMN to NCLs and add neighbor relationships with these cellsto NRTs by ANR. In addition, ANR automatically sets the Neighbor Cell PlmnLabel parameter to GREY(GREY) for these cells. The eNodeB does not remove aneighbor relationship for which the Neighbor Cell Plmn Label parameter is set toGREY(GREY) from an NRT when removing redundant neighbor relationships.This prevents such a neighbor relationship from being repeatedly removed.

– If this parameter is set to WHITE_LIST(WHITE_LIST) for a PLMN, theeNodeB can add cells of the PLMN to NCLs and add neighbor relationships withthese cells to NRTs by ANR. In addition, ANR automatically sets the NeighborCell Plmn Label parameter to WHITE(WHITE) for these cells.

Operators can check the PLMN list type of neighboring cells by running the DSPEUTRANINTRAFREQNCELL, DSP EUTRANINTERFREQNCELL, DSPUTRANNCELL, and DSP GERANNCELL commands. Note that the information ofneighboring cells for which the Neighbor Cell Plmn Label parameter is set toWHITE(WHITE) is displayed by default.

In addition, at most two PLMN types can be manually configured for neighboring cells ofeach RAT. Take neighboring E-UTRAN cells as an example. These neighboring E-UTRANcells belong to PLMNs A, B, C, and other PLMNs. If the NCellPlmnList.PlmnListTypeparameters are set to GREY_LIST(GREY_LIST), GREY_LIST(GREY_LIST), andBLACK_LIST(BLACK_LIST) for PLMNs A, B, and C, respectively, operators cannot setthe NCellPlmnList.PlmnListType parameter to WHITE_LIST(WHITE_LIST) for the otherPLMNs. The eNodeB regards the other PLMNs as whitelisted in the E-UTRAN.

It is recommended that operators configure the blacklisted and greylisted PLMNs. Otherattribute-undefined PLMNs are regarded as whitelisted. In this case, cells of attribute-undefined PLMNs can be added to NCLs and neighbor relationships with these cells can beadded to NRTs. If operators configure the whitelisted and greylisted PLMNs, other undefinedPLMNs are regarded as blacklisted. Cells of the undefined PLMNs cannot be added to NCLsand neighbor relationships with these cells cannot be added to NRTs. In this case, someexceptions cannot be detected by operators.

For neighboring cells of an RAT, if operators set some PLMNs to one type and leave otherPLMNs' types undefined or leave all PLMNs' types undefined, the eNodeB handles asfollows:

l If operators configure only blacklisted PLMNs, other type-undefined PLMNs areregarded as whitelisted be default.

l If operators configure only whitelisted PLMNs, other type-undefined PLMNs areregarded as greylisted be default.

l If operators configure only greylisted PLMNs, other type-undefined PLMNs areregarded as whitelisted be default.

l If operators do not define the type of any PLMN, all PLMNs are regarded as whitelistedby default.



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In scenarios where abnormal UEs report neighboring cells with invalid PLMN IDs, if theeNodeB adds such cells to NCLs and adds neighbor relationships with such cells to NRTs, theaddition of correct neighboring cells and neighbor relationships is affected, as well as thetarget cell selection in handovers. Therefore, it is recommended that theNCellPlmnList.PlmnListType parameter be set to BLACK_LIST(BLACK_LIST) for theinvalid PLMNs.

In scenarios where the neighboring cells are near the border of PLMNs, UEs can detect theseneighboring cells. If the neighboring cells are not added to NCLs and neighbor relationshipswith these cells are not added to NRTs, UEs repeatedly read the CGIs of these neighboringcells and target cells are incorrectly selected during handovers. Therefore, it is recommendedthat operators add neighboring PLMNs to the PLMN greylist by setting theNCellPlmnList.PlmnListType parameter to GREY_LIST(GREY_LIST).



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5 ANR with Shared Cells

An E-UTRAN cell may have the following types of shared intra-RAT neighboring cells:

l E-UTRAN cell that broadcast its PLMN list in a round robin (RR) manner

l E-UTRAN cell that does not broadcast its PLMN list in an RR manner

An E-UTRAN cell may have the following types of shared inter-RAT neighboring cells:

l UTRAN cell

l GERAN cell

If a neighboring cell is shared by operators, ANR maintains its PLMN list, in addition to theNCL and NRT. The PLMN lists are configured using the following MOs:

l Intra-RAT ANR: EutranExternalCellPlmn MO, which represents the PLMN list ofeach external E-UTRAN cell

l ANR with GERAN: GeranExternalCellPlmn MO, which represents the PLMN list ofeach external GERAN cell

l ANR with UTRAN: UtranExternalCellPlmn MO, which represents the PLMN list ofeach external UTRAN cell

This function requires the neighboring cell information obtained from the U2000 in thefollowing methods:

l If the serving cell and neighboring cells are managed by the same U2000, the sourceeNodeB can obtain the neighboring cell information directly from the U2000.

l If the serving cell and neighboring cells are not managed by the same U2000, the sourceeNodeB can obtain the neighboring cell information from the U2000 that manages theserving cell only after the neighboring cell information is imported into the U2000 thatmanages the serving cell. Operators can import the neighboring cell information into theU2000 of the serving cell by using the CME. If the neighboring cell information is notimported into the U2000 of the serving cell in a timely manner, the source eNodeB maynot obtain the neighboring cell information and ANR cannot add neighbor relationshipswith cells managed by another U2000 to the NRTs.

If a neighboring cell is shared by operators, a UE may not report the PLMN IDs of thesecondary operators or may report incorrect PLMN IDs of the primary and secondaryoperators. In this case, the source eNodeB obtains the PLMN information about theneighboring cell from the U2000 and automatically maintains the PLMN list of the cell.

eRANANR Management Feature Parameter Description 5 ANR with Shared Cells


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5.1 Intra-RAT ANR with Shared CellsIf PLMN information is changed for a shared E-UTRAN cell, the external-cell PLMN list(specified by the EutranExternalCellPlmn MO) in each peer eNodeB can be updated byintra-RAT ANR and can also be updated as follows:

l If the local and peer eNodeBs are connected through an X2 interface, the local eNodeBsends X2 messages to the peer eNodeB to inform the peer eNodeB of the change. Thepeer eNodeB updates the external-cell PLMN list based on the X2 messages.

l If the local and peer eNodeBs are not connected through an X2 interface, the external-cell PLMN list can be updated in the peer eNodeB by manually triggering either of thefollowing CME functions:– (a) Association between serving and neighboring cell information– (b) Consistency check between external E-UTRAN cells and their source cells

5.1.1 Shared E-UTRAN Cell Broadcasting Its PLMN List in an RRManner

If a shared neighboring E-UTRAN cell broadcasts its PLMN list in an RR manner, the UEmay fail to acquire the correct PLMN list of the cell.

The source eNodeB can obtain the correct PLMN list of the neighboring cell from the U2000.The eNodeB may obtain the information from the U2000 depending on the settings of theNBSLTEPLMNRoundSwitch(NBSLTEPLMNRoundSwitch) option of theENodeBAlgoSwitch.RanSharingAnrSwitch parameter and theCell.IntraFreqRanSharingInd or EutranInterNFreq.InterFreqRanSharingInd parameter,as described in Table 5-1. On a network with more than one frequency, theCell.IntraFreqRanSharingInd or EutranInterNFreq.InterFreqRanSharingInd parametercan be used to specify the RAN sharing policy for individual frequencies. The policy controlswhether the eNodeB queries the U2000 for neighboring cell information.



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Table 5-1 RAN sharing policies

TypeofNeighboringCell

Intra-orInter-eNodeB

NBSLTEPLMNRoundSwitch(NBSLTEPLMNRoundSwitch)

Value ofCell.IntraFreqRanSharingInd

Value ofEutranInterNFreq.InterFreqRanSharingInd

RAN Sharing Policy

Intra-frequency

Intra-eNodeB

Selected N/A N/A The eNodeB does not query theinformation about intra-frequency neighboring cellsfrom the U2000. For detailsabout the principles of theaddition of neighborrelationships, see 4.2.2Automatic Maintenance ofNCLs and NRTs and 4.3.2Automatic Maintenance ofNCLs and NRTs.

Inter-eNodeB

BOOLEAN_TRUE(True)

N/A The eNodeB can obtain theinformation about intra-frequency neighboring cellsfrom the U2000. The principlesof the addition of external cellsand neighbor relationships inthis scenario are the same asthose without information queryfrom the U2000. For details, see4.2.2 Automatic Maintenanceof NCLs and NRTs and 4.3.2Automatic Maintenance ofNCLs and NRTs.

BOOLEAN_FALSE(False)

N/A The eNodeB does not query theinformation about intra-frequency neighboring cellsfrom the U2000 and directlyadds intra-frequencyneighboring cells to the NCLand NRTs based on CGI readingresults. For details about theprinciple of the addition ofexternal cells and neighborrelationships, see 4.2.2Automatic Maintenance ofNCLs and NRTs and 4.3.2Automatic Maintenance ofNCLs and NRTs.



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RAN Sharing Policy

Inter-frequency

Intra-eNodeB

Selected N/A N/A The eNodeB does not query theinformation about inter-frequency neighboring cellsfrom the U2000. For detailsabout the principles of theaddition of neighborrelationships, see 4.2.2Automatic Maintenance ofNCLs and NRTs and 4.3.2Automatic Maintenance ofNCLs and NRTs.



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RAN Sharing Policy

Inter-eNodeB

N/A BOOLEAN_TRUE(True)

The eNodeB can obtain theinformation about inter-frequency neighboring cellsfrom the U2000.l The principles of the

addition of external cells andneighbor relationships byevent-triggered ANR are thesame as those withoutinformation query from theU2000. For details, see 4.2.2Automatic Maintenance ofNCLs and NRTs.

l If the ANR.FastAnrModeparameter is set toNCL_NRT_MODE(NCLand NRT Mode), theprinciples of the addition ofexternal cells and neighborrelationships by fast ANRare not the same as thosewithout information queryfrom the U2000. Thedifference is that theeNodeB adds the strongestand second strongest inter-eNodeB inter-frequencyunknown neighboring cellsto the NCL.

l If the ANR.FastAnrModeparameter is set to valuesother thanNCL_NRT_MODE(NCLand NRT Mode), theprinciples of the addition ofexternal cells and neighborrelationships by fast ANRare the same as thosewithout information queryfrom the U2000. For details,see 4.3.2 Automatic



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RAN Sharing Policy

Maintenance of NCLs andNRTs.

N/A BOOLEAN_FALSE(False)

The eNodeB does not query theinformation about inter-frequency neighboring cellsfrom the U2000 and directlyadds intra-frequencyneighboring cells to the NCLand NRTs based on CGI readingresults. For details about theprinciple of the addition ofexternal cells and neighborrelationships, see 4.2.2Automatic Maintenance ofNCLs and NRTs and 4.3.2Automatic Maintenance ofNCLs and NRTs.

If intra-RAT event-triggered ANR detects a missing neighboring E-UTRAN cell by usingevent-triggered UE measurements or intra-RAT fast ANR detects a missing neighboring E-UTRAN cell, the source eNodeB automatically maintains the PLMN list of the cell afterreceiving a measurement report that contains the ECGI of the cell from the UE. Themaintenance procedure is as follows:

1. The source eNodeB reports the PCI and ECGI acquired by the UE to the U2000. TheECGI is comprised of the PLMN ID, eNodeB ID, and cell ID.

2. The U2000 queries the PLMN IDs of the primary and secondary operators that share theE-UTRAN cell identified by the PCI and by the eNodeB ID plus cell ID. The U2000then sends the query result to the source eNodeB.

3. The source eNodeB adds the PLMN information to the external-cell configuration of theE-UTRAN cell.

If intra-RAT ANR detects a missing neighboring E-UTRAN cell by using UE historyinformation, the target eNodeB automatically maintains the PLMN list of the cell afterreceiving the UE history information that contains the ECGI of the cell from the UE. Themaintenance procedure is as follows:

1. The target eNodeB reports the PCI and ECGI acquired by the UE to the U2000. TheECGI is comprised of the PLMN ID, eNodeB ID, and cell ID.



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2. The U2000 queries the PLMN IDs of the primary and secondary operators that share theE-UTRAN cell identified by the PCI and by the eNodeB ID plus cell ID. The U2000then sends the query result to the target eNodeB.

3. The target eNodeB adds the PLMN information to the external-cell configuration of theE-UTRAN cell.

NOTE

If a shared inter-frequency cell broadcasts its PLMN list in an RR manner, the source eNodeB needs toobtain the target cell information from the U2000 before handovers. Before the target cell is added to theNCL of the source eNodeB and the NRT of the E-UTRAN cell and the PLMN information is added tothe external-cell configuration of the E-UTRAN cell, UEs cannot be handed over to the target cell.

For details about RAN sharing, see RAN Sharing Feature Parameter Description.

5.1.2 Shared E-UTRAN Cell Not Broadcasting Its PLMN List in anRR Manner

If a shared neighboring E-UTRAN cell does not broadcast its PLMN list in an RR manner, theUE may not acquire a complete PLMN list of the cell. As a result, the PLMN list is notincluded in the external-cell configuration.

The neighboring cell information is stored in the U2000. The eNodeB may obtain theinformation from the U2000 depending on the settings of theNBSLTERANSharingSwitch(NBSLTERANSharingSwitch) option of theENodeBAlgoSwitch.RanSharingAnrSwitch parameter and theCell.IntraFreqRanSharingInd or EutranInterNFreq.InterFreqRanSharingInd parameter,as described in Table 5-2. On a network with more than one frequency, theCell.IntraFreqRanSharingInd or EutranInterNFreq.InterFreqRanSharingInd parametercan be used to specify the RAN sharing policy for individual frequencies. The policy controlswhether the eNodeB queries the U2000 for neighboring cell information.

Table 5-2 RAN sharing policies


Intra- orInter-eNodeB

NBSLTERANSharingSwitch(NBSLTERANSharingSwitch)



RANSharingPolicy

Intra-frequency

Intra-eNodeB Selected N/A N/A The eNodeBdoes not querytheinformationabout intra-frequencyneighboringcells from theU2000.



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RANSharingPolicy

Inter-eNodeB BOOLEAN_TRUE(True)

N/A The eNodeBcan obtain theinformationabout intra-frequencyneighboringcells from theU2000.

BOOLEAN_FALSE(False)

N/A The eNodeBdoes not querytheinformationabout intra-frequencyneighboringcells from theU2000 anddirectly addsintra-frequencyneighboringcells to theNCL andNRTs basedon CGIreadingresults.

Inter-frequency

Intra-eNodeB Selected N/A N/A The eNodeBdoes not querytheinformationabout inter-frequencyneighboringcells from theU2000.



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RANSharingPolicy

Inter-eNodeB N/A BOOLEAN_TRUE(True)

The eNodeBcan obtain theinformationabout inter-frequencyneighboringcells from theU2000.

N/A BOOLEAN_FALSE(False)

The eNodeBdoes not querytheinformationabout inter-frequencyneighboringcells from theU2000 anddirectly addsinter-frequencyneighboringcells to theNCL andNRTs basedon CGIreadingresults.

For details about the principles of adding neighboring cells to the NCL and adding neighborrelationships to NRTs in the preceding scenarios, see 5.1.1 Shared E-UTRAN CellBroadcasting Its PLMN List in an RR Manner.

If intra-RAT event-triggered ANR detects a missing neighboring E-UTRAN cell by usingevent-triggered UE measurements or intra-RAT fast ANR detects a missing neighboring E-UTRAN cell, the source eNodeB automatically maintains the PLMN list of the cell afterreceiving a measurement report that contains the ECGI of the cell from the UE. Themaintenance procedure varies depending on whether the UE reports the PLMN list:l If the UE reports the PLMN list, the source eNodeB directly adds the PLMN information

to the external-cell configuration.l If the UE does not report the PLMN list, the maintenance procedure is as follows:



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a. The source eNodeB reports the ECGI acquired by the UE to the U2000.b. The U2000 queries the PLMN list of the cell and then sends the query result to the

source eNodeB.c. The source eNodeB adds the PLMN information to the external-cell configuration.

If ANR detects a missing neighboring E-UTRAN cell by using UE history information, thePLMN list maintenance procedure is the same as that described in 5.1.1 Shared E-UTRANCell Broadcasting Its PLMN List in an RR Manner.

NOTE

In a scenario where a neighboring E-UTRAN cell (cell B) of cell A is shared by multiple operators(including two or more secondary operators), if the S1 interfaces of some secondary operators of cell Bare faulty, the system information delivered in cell B does not include the PLMN IDs of these secondaryoperators. Therefore, the PLMN list of cell B acquired by the UE is incomplete. Cell A does notautomatically add the PLMN IDs of these secondary operators to the PLMN list configuration. After theS1 interfaces recover, operators must manually add these PLMN IDs to the PLMN list configuration.If a UE does not report the PLMN list of the target cell during a handover, the source eNodeB needs toobtain the target cell information from the U2000. UEs can be handed over to the target cell only afterthe target cell is added to the NCL of the source eNodeB and the PLMN information is added to theexternal-cell configuration of the source cell.

5.2 Inter-RAT ANR with Shared Cells

5.2.1 Shared GERAN CellIf a neighboring GERAN cell is shared by operators, UEs do not report the PLMN list of thecell. As a result, the PLMN list is not included in the external-cell configuration.

The neighboring cell information is stored in the U2000. The eNodeB may obtain theinformation from the U2000 depending on the settings of theNBSGERANRANSharingSwitch(NBSGERANRANSharingSwitch) option of theENodeBAlgoSwitch.RanSharingAnrSwitch parameter. On a network with more than oneGERAN frequency group, the GeranNFreqGroup.GeranRanSharingInd parameter can beused to specify the RAN sharing policy for individual frequency groups. The policy controlswhether the eNodeB queries the U2000 for neighboring cell information.

l If this parameter is set to BOOLEAN_TRUE(True), the source eNodeB can obtain theneighboring cell information from the U2000.The principles of the addition of external cells and neighbor relationships by event-triggered ANR are the same as those without information query from the U2000. Fordetails, see 4.2.2 Automatic Maintenance of NCLs and NRTs.If the ANR.FastAnrMode parameter is set to NCL_NRT_MODE(NCL and NRTMode), the principles of the addition of external cells and neighbor relationships by fastANR are not the same as those without information query from the U2000. Thedifference is that the eNodeB adds the strongest and second strongest unknownneighboring cells to the NCL. If the ANR.FastAnrMode parameter is set to values otherthan NCL_NRT_MODE(NCL and NRT Mode), the principles of the addition ofexternal cells and neighbor relationships by fast ANR are the same as those withoutinformation query from the U2000. For details, see 4.3.2 Automatic Maintenance ofNCLs and NRTs.

l If this parameter is set to BOOLEAN_FALSE(False), the source eNodeB cannot obtainthe neighboring cell information from the U2000. The source eNodeB directly adds



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GERAN neighboring cells to the NCL and NRTs based on CGI reading results. Fordetails about the principles of the addition of external cells and neighbor relationships,see 4.2.2 Automatic Maintenance of NCLs and NRTs and 4.3.2 AutomaticMaintenance of NCLs and NRTs.

If ANR detects a missing neighboring GERAN cell, the eNodeB automatically maintains thePLMN list of the cell after receiving a measurement report that contains the CGI of the cellfrom the UE. The maintenance procedure is as follows:

1. The eNodeB reports the CGI acquired by the UE to the U2000.2. The U2000 queries the PLMN list of the cell and then sends the query result to the

eNodeB.3. The eNodeB adds the PLMN information to the external-cell configuration.

NOTE

If a UE does not report the PLMN list of the target cell during a handover, the eNodeB needs to obtainthe target cell information from the U2000. UEs can be handed over to the target cell only after thetarget cell is added to the NCL of the source eNodeB and the PLMN information is added to theexternal-cell configuration of the source cell.

5.2.2 Shared UTRAN CellIf a neighboring UTRAN cell is shared by operators, the UE may not acquire a completePLMN list of the cell. As a result, the PLMN list is not included in the external-cellconfiguration. If the serving and neighboring cells are managed by the same U2000, theeNodeB can obtain the correct PLMN list of the neighboring cell from the U2000.

The neighboring cell information is stored in the U2000. The eNodeB may obtain theinformation from the U2000 depending on the settings of theNBSUTRANRANSharingSwitch(NBSUTRANRANSharingSwitch) option of theENodeBAlgoSwitch.RanSharingAnrSwitch parameter On a network with more than oneUTRAN frequency, the UtranNFreq.UtranRanSharingInd parameter can be used to specifythe RAN sharing policy for individual frequencies. The policy controls whether the eNodeBqueries the U2000 for neighboring cell information.

l If this parameter is set to BOOLEAN_TRUE(True), the source eNodeB can obtain theneighboring cell information from the U2000.The principles of the addition of external cells and neighbor relationships by event-triggered ANR are the same as those without information query from the U2000. Fordetails, see 4.2.2 Automatic Maintenance of NCLs and NRTs.If the ANR.FastAnrMode parameter is set to NCL_NRT_MODE(NCL and NRTMode), the principles of the addition of external cells and neighbor relationships by fastANR are not the same as those without information query from the U2000. Thedifference is that the eNodeB adds the strongest and second strongest unknownneighboring cells to the NCL. If the ANR.FastAnrMode parameter is set to values otherthan NCL_NRT_MODE(NCL and NRT Mode), the principles of the addition ofexternal cells and neighbor relationships by fast ANR are the same as those withoutinformation query from the U2000. For details, see 4.3.2 Automatic Maintenance ofNCLs and NRTs.

l If this parameter is set to BOOLEAN_FALSE(False), the source eNodeB cannot obtainthe neighboring cell information from the U2000. The source eNodeB directly addsUTRAN neighboring cells to the NCL and NRTs based on CGI reading results. Fordetails about the principles of the addition of external cells and neighbor relationships,



65

see 4.2.2 Automatic Maintenance of NCLs and NRTs and 4.3.2 AutomaticMaintenance of NCLs and NRTs.

If ANR detects a missing neighboring UTRAN cell, the eNodeB automatically maintains thePLMN list of the cell after receiving a measurement report that contains the CGI of the cellfrom the UE. The maintenance procedure varies depending on whether the UE reports thePLMN list:l If the UE reports the PLMN list, the eNodeB directly adds the PLMN information to the

external-cell configuration.l If the UE does not report the PLMN list, the maintenance procedure is as follows:

a. The eNodeB reports the CGI acquired by the UE to the U2000.b. The U2000 queries the PLMN list of the cell and then sends the query result to the

eNodeB.c. The eNodeB adds the PLMN information to the external-cell configuration.

NOTE

If a UE does not report the PLMN list of the target cell during a handover, the eNodeB needs toobtain the target cell information from the U2000. UEs can be handed over to the target cell onlyafter the target cell is added to the NCL of the source eNodeB and the PLMN information is addedto the external-cell configuration of the source cell.



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6 NCL/NRT Self-Management Based on X2

Messages

When an X2 interface is set up or eNodeB configurations change, the local and peer eNodeBsexchange information through the X2 interface to update NCLs and NRTs. For details aboutthe messages transmitted during X2 setups and eNodeB configuration updates, see section 8.3"Global Procedures" in 3GPP TS 36.423 V10.0.0.

NCL/NRT self-management based on X2 messages manages only the external cells andneighbor relationship for which the Control Mode parameter is set to AUTO_MODE(AutoMode). For details about the Control Mode parameter, see 4.1.1 NCL/NRT Control Mode.

eRANANR Management Feature Parameter Description 6 NCL/NRT Self-Management Based on X2 Messages


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6.1 NCL/NRT Entry Addition and UpdateNCL/NRT entry addition and update based on X2 messages are controlled by theGlobalProcSwitch.X2BasedUptENodeBCfgSwitch parameter.

NCL Entry Addition Based on X2 Setup MessagesFigure 6-1 illustrates the signaling procedure of successful X2 setup.

Figure 6-1 Signaling procedure of successful X2 setup

1. After receiving an X2 SETUP REQUEST message from eNodeB 1, eNodeB 2 adds allcells under eNodeB 1 to the NCL of eNodeB 2 if theGlobalProcSwitch.X2BasedUptENodeBCfgSwitch parameter is set to ON(On) foreNodeB 2.

2. eNodeB 2 responds with an X2 SETUP RESPONSE message. After receiving thismessage, eNodeB 1 adds all cells under eNodeB 2 to the NCL of eNodeB 1 if theGlobalProcSwitch.X2BasedUptENodeBCfgSwitch parameter is set to ON(On) foreNodeB 1.

If the GlobalProcSwitch.X2ServedCellType parameter is set toCONFIGURED_CELL(Configured Cell), all the cells mentioned above include active andinactive cells. After being added to the NCL, inactive cells may be removed from the NCL byintra-RAT event-triggered ANR. As a result, such an inactive cell will be added to the NCLand then removed from the NCL repeatedly.

If the GlobalProcSwitch.X2ServedCellType parameter is set to ACTIVE_CELL(ActiveCell), all the cells mentioned above refers to active cells.

When an eNodeB adds a neighboring frequency based on X2 messages, theFreqAddCtrl(FreqAddCtrl) option of the GlobalProcSwitch.X2BasedUptENodeBPolicyparameter controls whether the eNodeB filters frequencies based on the operator information.If this option is selected, the local eNodeB does not filter frequencies but directly configuresthe operating frequencies of cells served by the peer eNodeB as neighboring frequencies ofthe local cell. If this option is deselected, the local eNodeB filters frequencies. It checkswhether the operator information of the local cell and that of cells served by the peer eNodeBare the same. The local eNodeB configures a frequency as a neighboring frequency only if thefrequency has the same operator information as the local cell.



68

NCL/NRT Entry Addition and Update Based on eNodeB Configuration UpdateMessages

If a cell is added to the local eNodeB or the cell configuration (downlink EARFCN, PCI,ECGI, TAC, or PLMN list) of the local eNodeB changes, the local eNodeB sends an ENBCONFIGURATION UPDATE message to the peer eNodeB through the X2 interface toinform the peer eNodeB of the change. The peer eNodeB automatically adds the new cell toits NCL or updates the cell configuration in its NCL and NRT.

Figure 6-2 illustrates the signaling procedure of eNodeB configuration update.

Figure 6-2 Signaling procedure of eNodeB configuration update

NOTE

If no cell under eNodeB 1 is active, eNodeB 1 cannot use X2 messages to inform eNodeB 2 of theeNodeB configuration update.

1. When a cell is added to or modified in eNodeB 1, eNodeB 1 sends an ENBCONFIGURATION UPDATE message to eNodeB 2.

2. eNodeB 2 performs one of the following operations:– If the NCL of eNodeB 2 does not contain the cell, eNodeB 2 adds the cell to its

NCL.– If the NCL of eNodeB 2 contains the cell and the Control Mode parameter for the

NCL/NRT entry is set to AUTO_MODE(Auto Mode), eNodeB 2 updates the NCLand NRT entry with the new downlink EARFCN, PCI, ECGI, TAC, or PLMN list.

In this scenario, an inactive cell under eNodeB 1 can be added to the NCL of eNodeB 2if the GlobalProcSwitch.X2ServedCellType parameter is set toCONFIGURED_CELL(Configured Cell). However, the inactive cell in an NCL maybe removed by intra-RAT event-triggered ANR. As a result, such an inactive cell will beadded to the NCL and then removed from the NCL repeatedly.When an eNodeB adds a neighboring frequency based on X2 messages, theFreqAddCtrl(FreqAddCtrl) option of theGlobalProcSwitch.X2BasedUptENodeBPolicy parameter controls whether the eNodeBfilters the frequencies based on the operator information. If this option is selected, thelocal eNodeB does not filter frequencies but directly configures the operatingfrequencies of cells served by the peer eNodeB as neighboring frequencies of the localcell. If this option is deselected, the local eNodeB filters frequencies. It checks whetherthe operator information of the local cell and that of cells served by the peer eNodeB arethe same. The local eNodeB configures a frequency as a neighboring frequency of thelocal cell only if the frequency has the same operator information as the local cell.



69

NOTE

After receiving the ENB CONFIGURATION UPDATE message, eNodeB 2 adds the cell to itsNCL or updates the cell in its NCL based on the message. During this operation, eNodeB 2 doesnot add or update the uplink EARFCN. The reason is that uplink EARFCNs can be calculatedbased on the configured downlink EARFCNs.

3. eNodeB 2 responds to eNodeB 1 with an ENB CONFIGURATION UPDATEACKNOWLEDGE message.

Before modifying eNodeB configuration data (such as parameterseNodeBFunction.eNodeBId, Cell.CellId, Cell.LocalCellId, Cell.PhyCellId, andCell.DlEarfcn, and parameters in the MOs CnOperator, CnOperatorTa, and CellOp) usingthe CME, you are advised to set the GlobalProcSwitch.X2BasedUptENodeBCfgSwitchparameter to OFF(Off). If this parameter is set to ON(On), the eNodeB may experienceconflicts between modified configuration data that the CME delivers to the eNodeB and theNCL/NRT update based on X2 messages, thereby causing configuration data loss orabnormality. Setting this parameter to OFF(Off) ensures that NCLs/NRTs will not beautomatically updated based on X2 messages when NCL/NRT data is modified using theCME.

6.2 NCL/NRT Entry RemovalIf a cell under the local eNodeB is removed, the local eNodeB sends an ENBCONFIGURATION UPDATE message to the peer eNodeB through the X2 interface toinform the peer eNodeB of the change. The peer eNodeB automatically removes the cell fromits NCL and removes the neighbor relationship with the cell from its NRT. NCL/NRT entryremoval based on X2 messages is activated if both theGlobalProcSwitch.X2BasedUptENodeBCfgSwitch andGlobalProcSwitch.X2BasedDelNcellCfgSwitch parameters are set to ON(On).

Figure 6-3 illustrates the signaling procedure of eNodeB configuration update.

Figure 6-3 Signaling procedure of eNodeB configuration update

NOTE

If no cell under eNodeB 1 is active, eNodeB 1 cannot use X2 messages to inform eNodeB 2 of theeNodeB configuration update.

1. When a cell under eNodeB 1 is removed, eNodeB 1 sends eNodeB 2 an ENBCONFIGURATION UPDATE message that contains the IE Served Cells To Delete.



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2. Considering the ECGI in the IE Served Cells To Delete, eNodeB 2 performs one of thefollowing operations:– If the ECGI is included in both an NCL and an NRT of eNodeB 2, the No remove

indicator parameter is set to PERMIT_RMV_ENUM(Permit ANR Remove) forthe neighbor relationship with the external cell identified by the ECGI, and theControl Mode parameter is set to AUTO_MODE(Auto Mode) for the externalcell and neighbor relationship, then eNodeB 2 removes the external cell and theneighbor relationship.

– If the ECGI is included in the NCL but not any NRT of eNodeB 2, eNodeB 2removes the external cell identified by the ECGI from the NCL.

3. eNodeB 2 responds to eNodeB 1 with an ENB CONFIGURATION UPDATEACKNOWLEDGE message.

It is recommended that the GlobalProcSwitch.X2ServedCellType parameter be set toCONFIGURED_CELL(Configured Cell) when theGlobalProcSwitch.X2BasedDelNcellCfgSwitch parameter is set to ON(On). The reasons areas follows:

l If the GlobalProcSwitch.X2ServedCellType parameter is set toACTIVE_CELL(Active Cell), eNodeB 1 sends eNodeB 2 an ENB CONFIGURATIONUPDATE message carrying the IE Served Cells To Delete when the cells under eNodeB1 are manually deactivated or the S1 interface is faulty. After receiving this message,eNodeB 2 erroneously removes these cells from its NCL and NRTs.

l If the GlobalProcSwitch.X2ServedCellType parameter is set toCONFIGURED_CELL(Configured Cell), eNodeB 1 sends eNodeB 2 an ENBCONFIGURATION UPDATE message carrying the IE Served Cells To Delete onlywhen the cells under eNodeB 1 are removed.



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7 Related Features

7.1 Features Related to LOFD-002001 AutomaticNeighbour Relation (ANR)

Prerequisite FeaturesU2000 feature: WOFD-180600 Automatic Neighbor Relation Optimization - LTE

Mutually Exclusive FeaturesNone

Impacted FeaturesIntra-RAT ANR affects LOFD-002007 PCI Collision Detection & Self-Optimization. PCIconflict detection is triggered when intra-RAT ANR changes neighboring cell information.PCI conflict detection is triggered when intra-RAT ANR changes neighboring cellinformation.

Currently, if the E-UTRAN supports CA (included in LAOFD-001001 LTE-A Introduction)according to eNodeB configurations and UE capabilities, the eNodeB does not select certainCA UEs to perform measurements for intra-RAT event-triggered ANR or intra-RAT fastANR. The CA UE selection rule is specified by the ANR.CaUeChoseMode parameter.

Automatic neighbor relationship removal in intra-RAT ANR affects the LAOFD-001001LTE-A Introduction feature. The automatic removal function removes neighboring cells towhich the number of handovers is small within a specified period. If the removed neighboringcell is used for CA, CA cannot work. Therefore, if both the automatic removal function andCA are enabled, the EutranInterFreqNCell.NoRmvFlag parameter must be set toFORBID_RMV_ENUM(Forbid ANR Remove) for inter-frequency neighboring cells.Otherwise, CA does not work.

eRANANR Management Feature Parameter Description 7 Related Features


72

7.2 Features Related to LOFD-002002 Inter-RAT ANR

Prerequisite Features

U2000 feature: WOFD-181400 Inter-RAT Automatic Neighbor Relation Optimization - LTE

Mutually Exclusive Features

None

Impacted Features

Currently, if the E-UTRAN supports CA (included in LAOFD-001001 LTE-A Introduction)according to eNodeB configurations and UE capabilities, the eNodeB does not select certainCA UEs to perform measurements for inter-RAT event-triggered ANR or inter-RAT fastANR. The CA UE selection rule is specified by the ANR.CaUeChoseMode parameter.

7.3 Features Related to LOFD-081225 Neighbor CellClassification Management


LOFD-002001 Automatic Neighbour Relation (ANR)

LOFD-002007 PCI Collision Detection & Self-Optimization


None

Impacted Features

None

7.4 Features Related to LBFD-081102 PLMN IDManagement


None


None



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Impacted FeaturesNone



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8 Network Impact

8.1 LOFD-002001 Automatic Neighbour Relation (ANR)

System CapacityNo impact.

Network PerformanceEvent-triggered ANR

l Event-triggered ANR prolongs the delay in the handover of a UE that meets thehandover conditions but that is still performing ANR measurements to detect anunknown cell. After the neighbor relationship with the cell is added, ANR measurementsare not triggered during subsequent handovers to the cell and therefore the delay inhandovers to the cell is no longer prolonged.

l Event-triggered ANR negatively affects the UE throughput because UEs cannot bescheduled while they are reading the CGI of an unknown cell in the DRX state. Oncommercial networks, UEs are usually not fully buffered, and therefore the impact on theUE throughput is limited. After the neighbor relationship with the cell is added, thethroughput is no longer affected when UEs are handed over to the cell.

l To read the CGI of an unknown cell, the UE enters sleep time in the DRX state. TheDRX sleep time can be interrupted by data transmission, thereby affecting the CGIreading success rate. Especially for VoIP services, the voice packets are periodicallyscheduled. The probability of sleep time interruption in VoIP scenarios is higher than thatin other scenarios, and therefore the CGI reading success rate is much lower. However,once the UE successfully obtains the CGI of the unknown cell, the eNodeB can finishneighbor relationship addition and does not instruct the UE to perform CGI readingagain.

Fast ANR

l Periodic reporting of the PCIs of the strongest cells may affect network performance.LTE measurements are performed on a per frequency basis. Periodic reporting of thePCIs of the strongest intra-frequency cells does not affect UE throughput. Inter-frequency ANR requires gap-assisted measurements, which negatively affect UEthroughput.

eRANANR Management Feature Parameter Description 8 Network Impact


75

l CGI reading affects network performance as follows:– To read the CGI of an unknown cell, the UE must be synchronized with the cell.

The UE acquires the PLMN IDs, CGI, and TAC of the cell from the systeminformation block type 1 (SIB1) and then reports the information to the sourceeNodeB. This process negatively affects UE throughput.

– To read the CGI of an unknown cell, the UE enters sleep time in the DRX state.During sleep time, the UE cannot be scheduled, and therefore UE throughput isnegatively affected.

l The overall impact of fast ANR on network performance is controllable, because of theupper limits on the number of UEs involved in fast ANR per cell and on the number ofperiodic measurement reports from a UE within each period.

l A larger number of periodic measurement reports from a UE results in more powerconsumption of the UE.

Event-triggered ANR and fast ANR can optimize intra-RAT neighbor relationships andreduce service drops and handover failures caused by neighbor relationship problems. Thisdecreases the service drop rate and increases the intra-RAT handover success rate. However,the gain produced by ANR cannot be quantified, and many factors affect the handover successrate and service drop rate. The number and distribution of ANR-capable UEs affect how fastANR can detect missing neighboring cells.

When ANR detects missing neighboring shared cells, the eNodeB queries the U2000 for thecells. The query lasts for a maximum of 3 minutes and may affect the handover. If nocandidate target cell is available for the handover, a service drop may occur.

8.2 LOFD-002002 Inter-RAT ANR


Network PerformanceInter-RAT ANR has a similar impact on network performance as intra-RAT ANR. Thedifference is that inter-RAT ANR increases the inter-RAT handover success rate, involving thefollowing KPIs:l Inter-RAT Handover Out Success Rate (LTE to WCDMA)l Inter-RAT Handover Out Success Rate (LTE to GSM)

NOTE

If ANR.OptMode is set to CONTROLLED(CONTROLLED) for ANR with UTRAN andoperators do not confirm the optimization advice that suggests adding the neighbor relationshipwith a UTRAN cell, UEs cannot be handed over to the UTRAN cell. In this case, ANR withUTRAN neither decreases the service drop rate nor brings any gains to the EUTRAN-to-UTRANhandover success rate.



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8.3 LOFD-081225 Neighbor Cell ClassificationManagement


Network PerformanceIf the Neighbor Cell Classification Label parameter is set to EXTENDED(EXTENDED)for a neighboring cell and theNCELL_CLASS_HO_POLICY_SW(NCELL_CLASS_HO_POLICY_SW) option of theNeighbor Cell Classification Mgt Switch parameter is selected, the eNodeB instructs a UEto perform CGI reading before handing the UE over to this neighboring cell. This can detectpossible PCI confusion, increasing the handover success rate and decreasing the service droprate. However, this increases the handover delay of the UE and decreases the UE throughput.If the CGI reading fails, there is a possibility that UE experiences a service drop.

8.4 LBFD-081102 PLMN ID Management


Network PerformanceThis feature prevents neighbor relationships with cells that have abnormal PLMN IDs frombeing added to NRTs, thereby increasing the handover success rate and decreasing the servicedrop rate.



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9 Engineering Guidelines for Intra-RAT

ANR

This chapter describes how to deploy intra-RAT ANR.

eRANANR Management Feature Parameter Description 9 Engineering Guidelines for Intra-RAT ANR


78

9.1 When to Use Intra-RAT ANRIntra-RAT ANR consists of intra-RAT event-triggered ANR and intra-RAT fast ANR.

In service steering scenarios, if an E-UTRA frequency is deployed for providing only VoIPservices, use intra-RAT ANR after initial planning and configuration of the neighborrelationships of cells on this frequency.

Intra-RAT Event-triggered ANRIt is recommended that intra-RAT event-triggered ANR be enabled all the time after networkconstruction finishes. Enable intra-RAT event-triggered ANR when enabling intra-RAT fastANR.

Disable automatic removal of redundant neighbor relationships in an early stage of networkdeployment to prevent stable neighbor relationships from being mistakenly removed.

Enable automatic removal of neighbor relationships if users want to use ANR toautomatically remove incorrect or redundant neighbor relationships.

Intra-RAT Fast ANREnable intra-RAT fast ANR if the network serves no commercial UEs or a small number ofcommercial UEs.

Disable intra-RAT fast ANR if the network serves a large number of commercial UEs or theengineering optimization (for example, downtilt adjustment and power adjustment) finishes.Disable intra-RAT fast ANR if intra-RAT event-triggered ANR is disabled.

HO BlacklistAdd neighbor relationships to HO blacklists in some special cases. For example, in scenarioswhere UEs in indoor cells on high floors can detect outdoor neighboring cells and users doesnot want UEs to initiate handovers to such outdoor neighboring cells, add the neighborrelationships with such outdoor cells to the blacklists.

You can only manually configure HO blacklists.

HO WhitelistAdd neighbor relationships to HO whitelists in some special cases. For example, the trafficvolumes of cells are uneven in the places, such as sports stadiums or venues. These cells havetraffic volumes only in special times. If the neighbor relationships with the cells around arenot added to the HO whitelists, ANR may determine these neighbor relationships asredundant neighbor relationships and removes them from the NRTs. In this case, you areadvised to add the neighbor relationships with the cells around the areas whose traffic volumeis uneven to the HO whitelists. This prevents ANR from mistakenly removing them from theNRTs.

You can only manually configure HO whitelists.

RRC BlacklistAdd the operating frequency and PCI of a neighboring cell to an RRC blacklist in somespecial cases. For example, if cells in the network edge of an operator operate on the same



79

frequency but do not share PCIs, users can add the PCI range used by another operator to theRRC blacklists. This prevents the UEs served by cells of the operator detects cells of anotheroperator.

Before adding the operating frequency and PCI of a cell to the RRC blacklist, ensure that thecell does not share the same PCI with another neighboring cell operating on the samefrequency. For example, if neighboring cells A and B operate on the same frequency andshare the same PCI and neighboring cell A is not an expected target cell for handovers andredirections, you are advised not to add this PCI to the RRC blacklist. This is because theRRC blacklist is set to blacklist the PCIs of cells operating on the same frequency. If theoperating frequency and PCI of neighboring cell A are blacklisted, then neighboring cell Bcannot be the target cell for handovers and redirections as well.

9.2 Required InformationNone

9.3 Deployment

9.3.1 ProcessNone

9.3.2 RequirementsIntra-RAT ANR has the following requirements:l UEs on the network are DRX-capable and support ANR measurements on intra- and

inter-frequency cells.l iManager U2000 V200R015C00 or later is used. iManager U2000 V200R015C00 or

later supports the function of cross-U2000 neighboring cell information query. Inautomatic detection of missing neighboring cell using UE history information, if theserving cell and neighboring cell are not managed by the same U2000, the U2000 mustsupport the function of cross-U2000 neighboring cell information querying. For detailsabout the requirements of the U2000, see 11.3.2 Requirements.

l The intra-RAT ANR measurement information (including frequencies to be measured)has been configured in the EutranInterNFreq MOs. For details, see Intra-RAT MobilityManagement in Connected Mode Feature Parameter Description.

l Operators have purchased and activated the license listed in Table 9-1.



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Table 9-1 License information for intra-RAT ANR

Feature ID Feature Name Model

LicenseControlItem

NE Sales Unit

LOFD-002001

Automatic NeighbourRelation (ANR)

LT1S000ANR00

AutomaticNeighbour Relation(ANR)(FDD)

eNodeB per cell

9.3.3 Data PreparationThere are three types of data sources:

l Network plan (negotiation not required): parameter values planned and set by theoperator

l Network plan (negotiation required): parameter values planned by the operator andnegotiated with the evolved packet core (EPC) or peer transmission equipment

l User-defined: parameter values set by users

Intra-RAT ANR

The following table describes the parameter that must be set in the ENodeBAlgoSwitch MOto enable intra-RAT ANR.

Parameter Name

Parameter ID

Data Source Setting Notes

ANRalgorithmswitch

ENodeBAlgoSwitch.AnrSwitch

Network plan(negotiation notrequired)

Select or clear the following options byreferring to 9.1 When to Use Intra-RAT ANR:l IntraRatEventAnrS-

witch(IntraRatEventAnrSwitch)l IntraRatFastAnrSwitch(IntraRatFastAnrS-

witch)l IntraRatAnrAutoDelS-

witch(IntraRatAnrAutoDelSwitch)l MlbBasedEventAnrS-

witch(MlbBasedEventAnrSwitch)l ServiceBasedEventAnrS-

witch(ServiceBasedEventAnrSwitch)l IntraRatEnhancedEventAnrS-

witch(IntraRatEnhancedEventAnrSwitch)l IntraRatNoHoSetAnrS-

witch(IntraRatNoHoSetAnrSwitch)



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The following table describes the parameter that must be set in a Cell MO to specify whetherto allow ANR management of external cells and neighbor relationships with these cells on theserving frequency.

Parameter Name

Parameter ID


IntraFreqANRIndication

Cell.IntraFreqAnrInd


Set this parameter toNOT_ALLOWED(NOT_ALLOWED) orALLOWED(ALLOWED) based on theoperator's policy.

The following table describes the parameter that must be set in an EutranInterNFreq MO tospecify whether to allow ANR management of external cells and neighbor relationships withthese cells on a neighboring E-UTRAN frequency.

Parameter Name

Parameter ID


ANRIndication

EutranInterNFreq.AnrInd



The following table describes the parameters that must be set in the ANR MO to specifyoptimization mode, the threshold for removing a neighbor relationship from an NRT, and thepolicy based on which the eNodeB adds a neighbor relationship to an NRT in event-triggeredANR.

Parameter Name

Parameter ID


Optimization Mode

ANR.OptMode


Set this parameter to FREE(FREE) orCONTROLLED(CONTROLLED) based onthe operator's policy.



82

Parameter Name

Parameter ID


Handoverthresholdfor deleteNRT

ANR.NcellHoForNRTDelThd


l If this parameter is set to a non-zero valueand the number of neighbor relationships inan NRT has reached its maximum value, theeNodeB determines whether to remove aneighbor relationship with a neighboringcell based on the number of measurementreports that include the neighboring cell andthe number of handovers from the local cellto the neighboring cell. When there areseveral candidate neighbor relationships thatmeet certain conditions, ANR removes thelowest-priority neighbor relationship. Thepriority is determined by the number ofhandovers.

l If this parameter is set to 0 and the numberof neighbor relationships in an NRT hasreached its maximum value, the eNodeBdetermines whether to remove a neighborrelationship with a neighboring cell basedon the number of measurement reports thatinclude the neighboring cell.



83

Parameter Name

Parameter ID


EventANRMode

ANR.EventAnrMode


This parameter specifies the policy based onwhich the eNodeB adds a neighbor relationshipinto an NRT in event-triggered ANR based oncoverage-based intra- or inter-frequencyhandover measurements and in event-triggeredANR based on load-based inter-frequencymeasurements.l If the adjacent cells of the source eNodeB

do not share a PCI, you are advised to setthis parameter toBASED_NCL(BASED_NCL). The sourceeNodeB can add a neighbor relationship toan NRT based on the neighboring cellinformation in the NCL.

l If many cells are served by an eNodeB andare not geographically adjacent, adjacentcells of the eNodeB may share PCIs. In thiscase, you are advised to set this parameter toNOT_BASED_NCL(NOT_BASED_NCL). The eNodeB instructs the UE to read theECGI again. Based on the reported ECGI,the eNodeB adds a neighbor relationshipinto an NRT.

If the ANR.OptMode parameter is set toCONTROLLED(CONTROLLED) and theANR.EventAnrMode parameter is set toNOT_BASED_NCL(NOT_BASED_NCL),the eNodeB reports the optimization advice foradding the neighbor relationship with a cell intoan NRT to the U2000. Operators determinewhether to take the advice. Before operatorsconfirm this optimization advice, the eNodeBinstructs the UE to read the ECGI of the cell ifthe PCI contained in a coverage-based intra-RAT handover measurement report or in a load-based inter-frequency measurement report doesnot exist in the NRT. To prevent performancedeterioration due to ECGI reading beforehandovers, operators are advised to handle theNRT optimization advice promptly on theU2000.

NRTDeleteMode

ANR.NrtDelMode


Select or deselect theEUTRAN_DELREDUNDANCENCELL(Remove Redundant E-UTRAN NeighborRelationship) option by referring to 9.1 Whento Use Intra-RAT ANR.



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HO Blacklist and HO WhitelistThe following table describes the parameters that must be set in the EutranIntraFreqNCellMO to configure the intra-frequency HO blacklist and the intra-frequency HO whitelist.

Parameter Name

ParameterID


Nohandoverflag

EutranIntraFreqNCell.NoHoFlag

Network plan(negotiationnot required)

l Set this parameter toFORBID_HO_ENUM(Forbid Ho) whenconfiguring an HO blacklist.

l Set this parameter toPERMIT_HO_ENUM(Permit Ho) whenconfiguring an HO whitelist.

Noremoveindicator

EutranIntraFreqNCell.NoRmvFlag

Network plan(negotiationnot required)

Set this parameter toFORBID_RMV_ENUM(Forbid ANRRemove) when configuring either an HOwhitelist or an HO blacklist.

The following table describes the parameters that must be set in the EutranInterFreqNCellMO to configure the inter-frequency HO blacklist and the inter-frequency HO whitelist.

Parameter Name

Parameter ID


Nohandoverflag

EutranInterFreqNCell.NoHoFlag


l Set this parameter toFORBID_HO_ENUM(Forbid Ho) whenconfiguring an HO blacklist.

l Set this parameter toPERMIT_HO_ENUM(Permit Ho) whenconfiguring an HO whitelist.

Noremoveindicator

EutranInterFreqNCell.NoRmvFlag



RRC BlacklistThe following table describes the parameters that must be set in the IntraFreqBlkCell MO toconfigure the intra-frequency RRC blacklist.



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ParameterName

Parameter ID Data Source Setting Notes

Local cell ID IntraFreqBlkCell.LocalCellId


None

Physical cellID

IntraFreqBlkCell.PhyCellId


None

The following table describes the parameters that must be set in the InterFreqBlkCell MO toconfigure the inter-frequency RRC blacklist.

ParameterName


Local cell ID InterFreqBlkCell.LocalCellId


None

DownlinkEARFCN

InterFreqBlkCell.DlEarfcn


None

Physical cellID

InterFreqBlkCell.PhyCellId


None

9.3.4 PrecautionsNone

9.3.5 Hardware AdjustmentN/A

9.3.6 Activation

Using the CME to Perform Batch Configuration for Newly Deployed eNodeBs

Enter the values of the parameters listed in Table 9-2 in a summary data file, which alsocontains other data for the new eNodeBs to be deployed.

Then, import the summary data file into the Configuration Management Express (CME) forbatch configuration. For detailed instructions, see "Creating eNodeBs in Batches" in the initialconfiguration guide for the eNodeB, which is available in the eNodeB product documentation.

The summary data file may be a scenario-specific file provided by the CME or a customizedfile, depending on the following conditions:



86

l The MOs in Table 9-2 are contained in a scenario-specific summary data file. In thissituation, set the parameters in the MOs, and then verify and save the file.

l Some MOs in Table 9-2 are not contained in a scenario-specific summary data file. Inthis situation, customize a summary data file to include the MOs before you can set theparameters.

Table 9-2 Parameters for intra-RAT ANR

MO Sheet intheSummaryData File

ParameterGroup

Remarks

ENodeBAlgoSwitch

User-definedsheet.ENodeBAlgoSwitchisrecommended.

AnrSwitch Add the ENodeBAlgoSwitch sheet to thesummary data file.

CELL User-definedsheet.CELL isrecommended.

IntraFreqAnrInd

Add the CELL sheet to the summary data file.

EutranInterNFreq

User-definedsheet.EutranInterNFreqisrecommended.

AnrInd Add the EUTRANINTERNFREQ sheet to thesummary data file.

ANR User-definedsheet.ANR isrecommended.

FastAnrRprtAmount,NcellHoForNRTDelThd,EventAnrMode,NrtDelMode

Add the ANR sheet to the summary data file.

EutranIntraFreqNCell

User-definedsheet.EutranIntraFreqNCell isrecommended.

NoHoFlag,NoRmvFlag

Add the EutranIntraFreqNCell sheet to thesummary data file.



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ParameterGroup

Remarks

EutranInterFreqNCell

User-definedsheet.EutranInterFreqNCell isrecommended.

NoHoFlag,NoRmvFlag

Add the EutranInterFreqNCell sheet to thesummary data file.

IntraFreqBlkCell

User-definedsheet.IntraFreqBlkCell isrecommended.

LocalCellId,PhyCellId,PhyCellIdRange

Add the IntraFreqBlkCell sheet to thesummary data file.

InterFreqBlkCell

User-definedsheet.InterFreqBlkCell isrecommended.

LocalCellId,PhyCellId,PhyCellIdRange

Add the InterFreqBlkCell sheet to thesummary data file.

Using the CME to Perform Batch Configuration for Existing eNodeBs

Batch reconfiguration using the CME is the recommended method to activate a feature onexisting eNodeBs. This method reconfigures all data, except neighbor relationships, formultiple eNodeBs in a single procedure. The procedure is as follows:

Step 1 Customize a summary data file with the MOs and parameters listed in section "Using theCME to Perform Batch Configuration for Newly Deployed eNodeBs." For detailedoperations, press F1 in a CME window and navigate to Managing the CME > CMEGuidelines > LTE Application Management > eNodeB Related Operations >Customizing a Summary Data File for Batch eNodeB Configuration in the CME onlinehelp.

Step 2 Choose CME > LTE Application > Export Data > Export Base Station BulkConfiguration Data (U2000 client mode), or choose LTE Application > Export Data >Export Base Station Bulk Configuration Data (CME client mode), to export the eNodeBdata stored on the CME into the customized summary data file.

Step 3 In the summary data file, set the parameters in the MOs according to the setting notesprovided in section "Data Preparation" and close the file.

Step 4 Choose CME > LTE Application > Import Data > Import Base Station BulkConfiguration Data (U2000 client mode), or choose LTE Application > Import Data >



88

Import Base Station Bulk Configuration Data (CME client mode), to import the summarydata file into the CME, and then start the data verification.

Step 5 After data verification is complete, choose CME > Planned Area > Export IncrementalScripts (U2000 client mode), or choose Area Management > Planned Area > ExportIncremental Scripts (CME client mode), to export and activate the incremental scripts. Fordetailed operations, see Managing the CME > CME Guidelines > Script File Management> Exporting Incremental Scripts from a Planned Data Area in the CME online help.

----End

Using the CME to Perform Single ConfigurationOn the CME, set the parameters listed in the "Data Preparation" section for a single eNodeB.The procedure is as follows:

Step 1 In the planned data area, click Base Station in the upper left corner of the configurationwindow.

Step 2 In area 1 shown in Figure 9-1, select the eNodeB to which the MOs belong.

Figure 9-1 MO search and configuration window

Step 3 On the Search tab page in area 2, enter an MO name, for example, CELL.

Step 4 In area 3, double-click the MO in the Object Name column. All parameters in this MO aredisplayed in area 4.

Step 5 Set the parameters in area 4 or 5.

Step 6 Choose CME > Planned Area > Export Incremental Scripts (U2000 client mode), or chooseArea Management > Planned Area > Export Incremental Scripts (CME client mode), toexport and activate the incremental scripts.

----End



89

Using MML Commands

Activating Intra-RAT Event-triggered ANR

Step 1 Run the MOD ENODEBALGOSWITCH command with theIntraRatEventAnrSwitch(IntraRatEventAnrSwitch) option of the ANR algorithm switchparameter selected.

Step 2 Run the MOD CELL or MOD EUTRANINTERNFREQ command with the IntraFreqANR Indication or ANR Indication parameter set to ALLOWED(ALLOWED),respectively.

Step 3 (Optional) In addition,l To enable "priority-based removal when the number of neighbor relationships reaches its

maximum" or removal of inappropriate neighbor relationships, select theIntraRatAnrAutoDelSwitch(IntraRatAnrAutoDelSwitch) option of the ANRalgorithm switch parameter.

l To enable removal of redundant neighbor relationships, select both theIntraRatAnrAutoDelSwitch(IntraRatAnrAutoDelSwitch) option of the ANRalgorithm switch parameter and theEUTRAN_DELREDUNDANCENCELL(Remove Redundant E-UTRAN NeighborRelationship) option of the NRT Delete Mode parameter.

l To enable event-triggered ANR based on MLB, select theMlbBasedEventAnrSwitch(MlbBasedEventAnrSwitch) option of the ANRalgorithm switch parameter. To enable event-triggered ANR based on service-basedhandover measurements, select theServiceBasedEventAnrSwitch(ServiceBasedEventAnrSwitch) option of the ANRalgorithm switch parameter. To enable event-triggered ANR based on other types ofhandover measurements, select theIntraRatEnhancedEventAnrSwitch(IntraRatEnhancedEventAnrSwitch) option ofthe ANR algorithm switch parameter.

l To enable automatic optimization of neighbor relationships with cells of abnormalsuccess rates of intra-RAT handovers, select theIntraRatNoHoSetAnrSwitch(IntraRatNoHoSetAnrSwitch) option of the ANRalgorithm switch parameter. You can determine whether to trigger "CGI reading basedon the handover success rate" by setting the No Handover Set Mode parameter.

----End

Activating Intra-RAT Fast ANR

Step 1 Run the MOD ENODEBALGOSWITCH command with theIntraRatFastAnrSwitch(IntraRatFastAnrSwitch) option of the ANR algorithm switchparameter selected.

Step 2 Run the MOD CELL or MOD EUTRANINTERNFREQ command with the IntraFreqANR Indication or ANR Indication parameter set to ALLOWED(ALLOWED),respectively.

----End

Changing the Number of Periodic Measurement Reports for Fast ANR

Run the MOD ANR command with the Fast ANR PCI report amount parameter set tor4(4).



90

Activating the Removal of Neighbor Relationships with the Cells to Which No HandoverIs Performed During a Measurement Period

Run the MOD ANR command with the Handover threshold for delete NRT parameter setto 1.

Setting the NRT Entry Addition Mode

Run the MOD ANR command with the Event ANR Mode parameter specified.

Run the MOD ANR command with the Fast ANR Mode parameter specified.

Configuring HO Blacklists and HO Whitelists

Run the ADD EUTRANINTRAFREQNCELL and ADD EUTRANINTERFREQNCELLcommands to configure intra-frequency and inter-frequency HO blacklists/whitelists,respectively.

l To whitelist a cell, set the No handover indicator and No remove indicator parametersto PERMIT_HO_ENUM(Permit Ho) and FORBID_RMV_ENUM(Forbid ANRRemove), respectively.

l To blacklist a cell, set the No handover indicator and No remove indicator parametersto FORBID_HO_ENUM(Forbid Ho) and FORBID_RMV_ENUM(Forbid ANRRemove), respectively.

Configuring RRC Blacklists

l Run the ADD INTRAFREQBLKCELL command to configure the intra-frequencyRRC blacklist.

l Run the ADD INTERFREQBLKCELL command to configure the inter-frequencyRRC blacklist.

MML Command ExamplesActivating Intra-RAT Event-triggered ANRMOD ENODEBALGOSWITCH: AnrSwitch=IntraRatEventAnrSwitch-1;MOD CELL: LocalCellId=xx, IntraFreqAnrInd=ALLOWED;MOD EUTRANINTERNFREQ: LocalCellId=xx, DlEarfcn=xx, AnrInd=ALLOWED;MOD ENODEBALGOSWITCH: AnrSwitch=IntraRatAnrAutoDelSwitch-1;MOD ANR: NrtDelMode=EUTRAN_DELREDUNDANCENCELL-1;MOD ENODEBALGOSWITCH: AnrSwitch=MlbBasedEventAnrSwitch-1&ServiceBasedEventAnrSwitch-1&IntraRatEnhancedEventAnrSwitch-1;MOD ENODEBALGOSWITCH: AnrSwitch=IntraRatNoHoSetAnrSwitch-1;MOD ANR: NoHoSetMode=xx;

Activating Intra-RAT Fast ANRMOD ENODEBALGOSWITCH: AnrSwitch=IntraRatFastAnrSwitch-1;MOD CELL: IntraFreqAnrInd=ALLOWED;MOD EUTRANINTERNFREQ: LocalCellId=xx, DlEarfcn=xx, AnrInd=ALLOWED;

Changing the Number of Periodic Measurement Reports for Fast ANRMOD ANR: FastAnrRprtAmount=r4;

Activating the Removal of Neighbor Relationships with the Cells to Which No HandoverIs Performed During a Measurement PeriodMOD ANR: NcellHoForNRTDelThd=1;




91

MOD ANR: EventAnrMode=NOT_BASED_NCL;MOD ANR: FastAnrMode=NCL_MODE;

Configuring the Intra-Frequency HO Blacklist and WhitelistADD EUTRANINTRAFREQNCELL: LocalCellId=0, Mcc="460", Mnc="00", eNodeBId=123, CellId=0, NoHoFlag=FORBID_HO_ENUM, NoRmvFlag=FORBID_RMV_ENUM;ADD EUTRANINTRAFREQNCELL: LocalCellId=0, Mcc="460", Mnc="00", eNodeBId=123, CellId=0, NoHoFlag=PERMIT_HO_ENUM, NoRmvFlag=FORBID_RMV_ENUM;

Configuring the Inter-Frequency HO Blacklist and WhitelistADD EUTRANINTERFREQNCELL: LocalCellId=0, Mcc="460", Mnc="00", eNodeBId=123, CellId=0, NoHoFlag=FORBID_HO_ENUM, NoRmvFlag=FORBID_RMV_ENUM;ADD EUTRANINTERFREQNCELL: LocalCellId=0, Mcc="460", Mnc="00", eNodeBId=123, CellId=0, NoHoFlag=PERMIT_HO_ENUM, NoRmvFlag=FORBID_RMV_ENUM;

Configuring the Intra-Frequency RRC BlacklistADD INTRAFREQBLKCELL: LocalCellId=0, PhyCellId=1, PhyCellIdRange=n4;

Configuring the Inter-Frequency RRC BlacklistADD INTERFREQBLKCELL: LocalCellId=0, DlEarfcn=0, PhyCellId=1, PhyCellIdRange=n4;

9.3.7 Activation Observation

Signaling TracingTo use signaling tracing to verify whether intra-RAT ANR has been activated, perform thefollowing steps:

Step 1 On the U2000 client, choose Monitor > Signaling Trace > Signaling Trace Management.

Step 2 In the navigation tree on the left of the Signaling Trace Management tab page, double-clickUu Interface Trace under LTE > Application Layer.

Step 3 Create and start a Uu interface tracing task.

Step 4 Remove some neighbor relationships so that there are missing neighboring cells in thenetwork. If a UE reports an ECGI during an intra-RAT handover to a missing neighboring cellas indicated in a traced message, intra-RAT ANR has been activated. Figure 9-2 shows anexample of the tracing result.

Figure 9-2 Uu tracing result for intra-RAT ANR observation



92

Step 5 Check whether the HO blacklist, HO whitelist, and RRC blacklist are configured successfully.l The HO blacklist takes effect if the cells in the blacklist can be detected by UEs, no

handovers to these cells are performed, and configuration data shows that the neighborrelationships with these cells cannot be removed automatically.

l The HO whitelist takes effect if the cells in the whitelist can be detected by UEs,handovers to these cells can be performed, and configuration data shows that theneighbor relationships with these cells cannot be removed automatically.

l The RRC blacklist takes effect if it is included in the measurement configuration.

----End

SON Logs on the U2000 ClientTo use SON logs to verify whether intra-RAT ANR has been activated, perform the followingsteps:

Step 1 (Optional) Deliver optimization advice. This step is required when the Optimization Modeparameter is set to CONTROLLED(CONTROLLED). The advice selection operationvaries depending on the advice type:l Optimization advice of adding or removing neighbor relationships: On the U2000 client,

choose SON > LTE ANR. In the Neighboring Cell Relationship to Be Handled paneof the Neighboring Cell Management tab page, select the optimization advice to bedelivered.

l Optimization advice on blind handover priorities: On the U2000 client, choose SON >LTE Blind Neighboring Cell Optimization. On the Parameter Optimization Advicetab page, select the optimization advice to be delivered.

Step 2 On the U2000 client, choose SON > SON Log.

Step 3 On the Query SON Log tab page, click LTE ANR Log in the Log Category drop-down listin the upper left corner.

Step 4 In the Event Name area, select items such as Set ANR Switch, Add Neighboring Cell,Delete Neighboring Cell, Add External Cell, Delete External Cell, SET handoverBlacklist & Whitelist, and Automatically Disable Handover one at a time to checkdifferent types of ANR operations.

----End

NOTE

If there are several SON-related operations at the same time and one of the operations is incorrectlyexecuted all SON-related operations are rolled back. In this situation, only one error code is displayed inthe SON log, and other failed operations have the same error code.The SON logs under the item SET handover Blacklist & Whitelist record the modification of Noremove indicator and No handover indicator by operators.

LTE ANR Management on the U2000 ClientTo use the LTE ANR management function to view configured neighbor relationships,perform the following steps:

Step 1 On the U2000 client, choose SON > LTE ANR.

Step 2 In the Neighboring Cell area on the Neighboring Cell Management tab page, check allneighbor relationships of the specific source cell. The Creation Mode attribute indicates



93

whether a neighbor relationship is added by ANR. NON-ANR indicates that the neighborrelationship is not added by ANR. ANR indicates that the neighbor relationship is added byANR. This function can be used to view all configured neighbor relationships, even if theANR feature is disabled.

----End

MML CommandsTo use MML commands to verify whether intra-RAT ANR has been activated, perform thefollowing steps:

Step 1 Run the LST EUTRANINTRAFREQNCELL and LST EUTRANINTERFREQNCELLcommands to list the configurations of neighbor relationships with intra- and inter-frequencyE-UTRAN cells, respectively.

Step 2 In the command output, check the value of the ANR flag parameter.l If the value is True, the intra-RAT neighbor relationship is automatically configured by

ANR.l If the value is False, the intra-RAT neighbor relationship is manually configured.

----End

9.3.8 ReconfigurationNone

9.3.9 Deactivation

Using the CME to Perform Batch ConfigurationBatch reconfiguration using the CME is the recommended method to deactivate a feature oneNodeBs. This method reconfigures all data, except neighbor relationships, for multipleeNodeBs in a single procedure. The procedure for feature deactivation is similar to that forfeature activation described in Using the CME to Perform Batch Configuration forExisting eNodeBs. In the procedure, modify parameters according to Table 9-3.



94

Table 9-3 Parameters for intra-RAT ANR

MO Sheet in theSummaryData File

ParameterGroup

Setting Notes

ENodeBAlgoSwitch User-definedsheet.ENodeBAlgoSwitch isrecommended.

ANRalgorithmswitch, NRTDelete Mode

Deselect the following optionsof this parameter:l IntraRatEventAnrSwitchl IntraRatFastAnrSwitchl IntraRatAnrAutoDelSwitchl MlbBasedEventAnrSwitchl IntraRatNoHoSetAnrS-

witchl EUTRAN_DELREDUND

ANCENCELL

CELL User-definedsheet. CELL isrecommended.

IntraFreqAnrInd

Set this parameter toNOT_ALLOWED.

EUTRANINTERNFREQ

User-definedsheet.EUTRANINTERNFREQ isrecommended.

AnrInd Set this parameter toNOT_ALLOWED.

ANR User-definedsheet. ANR isrecommended.

Handoverthreshold fordelete NRT

Set this parameter to 0.

Using the CME to Perform Single Configuration

On the CME, set parameters according to Table 9-3. For detailed instructions, see Using theCME to Perform Single Configuration described for feature activation.

Using MML Commands

Deactivating Intra-RAT Event-triggered ANR

l Deactivating Intra-RAT Event-triggered ANR

Run the MOD ENODEBALGOSWITCH command with theIntraRatEventAnrSwitch(IntraRatEventAnrSwitch) option of the ANR algorithmswitch parameter deselected.

l Deactivating Intra-RAT Frequency-Specific Event-triggered ANR

Run the MOD CELL command with the IntraFreq ANR Indication parameter set toNOT_ALLOWED(NOT_ALLOWED) to disable intra-RAT event-triggered ANRdedicated for the serving frequency.



95

Run the MOD EUTRANINTERNFREQ command with the ANR Indicationparameter set to NOT_ALLOWED(NOT_ALLOWED) to disable intra-RAT event-triggered ANR dedicated for a neighboring E-UTRAN frequency.

l Deactivating Only Certain Functions of Intra-RAT Event-triggered ANRIf you intend to disable only certain functions of intra-RAT event-triggered ANR,deselect the corresponding options of the ANR algorithm switch or NRT Delete Modeparameter while leaving the IntraRatEventAnrSwitch(IntraRatEventAnrSwitch)option of the ANR algorithm switch parameter on.– To disable automatic removal of intra-RAT neighbor relationships, deselect the

IntraRatAnrAutoDelSwitch(IntraRatAnrAutoDelSwitch) option of the ANRalgorithm switch parameter. To disable only removal of redundant neighborrelationships, deselect the EUTRAN_DELREDUNDANCENCELL(RemoveRedundant E-UTRAN Neighbor Relationship) option of the NRT Delete Modeparameter.

– To disable event-triggered ANR based on MLB, deselect theMlbBasedEventAnrSwitch(MlbBasedEventAnrSwitch) option of the ANRalgorithm switch parameter. To disable event-triggered ANR based on service-based handover measurements, deselect theServiceBasedEventAnrSwitch(ServiceBasedEventAnrSwitch) option of theANR algorithm switch parameter. To disable event-triggered ANR based on othertypes of handover measurements, deselect theIntraRatEnhancedEventAnrSwitch(IntraRatEnhancedEventAnrSwitch)option of the ANR algorithm switch parameter.

– To disable automatic optimization of neighbor relationships with cells of abnormalsuccess rates of intra-RAT handovers, deselect theIntraRatNoHoSetAnrSwitch(IntraRatNoHoSetAnrSwitch) option of the ANRalgorithm switch parameter.

Deactivating Intra-RAT Fast ANR

l Deactivating Intra-RAT Fast ANRRun the MOD ENODEBALGOSWITCH command with theIntraRatFastAnrSwitch(IntraRatFastAnrSwitch) option of the ANR algorithmswitch parameter deselected.

l Deactivating Intra-RAT Frequency-Specific Fast ANRRun the MOD CELL command with the IntraFreq ANR Indication parameter set toNOT_ALLOWED(NOT_ALLOWED) to disable intra-RAT fast ANR dedicated forthe serving frequency.Run the MOD EUTRANINTERNFREQ command with the ANR Indicationparameter set to NOT_ALLOWED(NOT_ALLOWED) to disable intra-RAT fast ANRdedicated for a neighboring E-UTRAN frequency.

Deactivating the Removal of Neighbor Relationships with the Cells to Which NoHandover Is Performed During a Measurement Period

Run the MOD ANR command with the Handover threshold for delete NRT parameter setto 0.

MML Command ExamplesDeactivating Intra-RAT Event-triggered ANRMOD ENODEBALGOSWITCH: AnrSwitch=IntraRatEventAnrSwitch-0;



96

MOD CELL: IntraFreqAnrInd=NOT_ALLOWED;MOD EUTRANINTERNFREQ: LocalCellId=xx, DlEarfcn=xx, AnrInd=NOT_ALLOWED;

l Deactivating Automatic Removal of Intra-RAT Neighbor RelationshipsMOD ENODEBALGOSWITCH: AnrSwitch=IntraRatAnrAutoDelSwitch-0;MOD ANR: NrtDelMode=EUTRAN_DELREDUNDANCENCELL-0;

l Deactivating Event-triggered ANR based on MLBMOD ENODEBALGOSWITCH: AnrSwitch=MlbBasedEventAnrSwitch-0;

l Deactivating Event-triggered ANR based on Service-based Handover MeasurementsMOD ENODEBALGOSWITCH: AnrSwitch=ServiceBasedEventAnrSwitch-0;

l Deactivating Event-triggered ANR based on Other Types of Handover MeasurementsMOD ENODEBALGOSWITCH: AnrSwitch=IntraRatEnhancedEventAnrSwitch-0;

l Deactivating Automatic Optimization of the No HO Attribute of Intra-RAT NeighborRelationships

MOD ENODEBALGOSWITCH: AnrSwitch=IntraRatEventAnrSwitch-0&IntraRatNoHoSetAnrSwitch-0;

Deactivating Intra-RAT Fast ANR

MOD ENODEBALGOSWITCH: AnrSwitch=IntraRatFastAnrSwitch-0;MOD CELL: IntraFreqAnrInd=NOT_ALLOWED;MOD EUTRANINTERNFREQ: LocalCellId=xx, DlEarfcn=xx, AnrInd=NOT_ALLOWED;

Deactivating the Removal of Neighbor Relationships with the Cells to Which NoHandover Is Performed During a Measurement Period

MOD ANR: NcellHoForNRTDelThd=0;

9.4 Performance MonitoringUsing intra-RAT ANR decreases the probability that the configurations of neighboring cellsare missing or incorrect, thereby increasing the intra-RAT handover success rate anddecreasing the service drop rate. To monitor the performance of intra-RAT ANR, you cancheck the performance counters related to handovers and service drops.

Table 9-4 lists the counters that can reflect the performance of the network where intra-RATANR is enabled. As intra-RAT neighbor relationships are configured, the values of thesecounters decrease.

Table 9-4 Counters related to intra-RAT ANR

Counter ID Counter Name Counter Description

1526728398 L.IntraFreqHO.NoNRT

Number of intra-frequency handoverinitiation failures due to the target cell notbeing configured as a neighboring cell forthe source cell

1526728399 L.InterFreqHO.NoNRT

Number of inter-frequency handoverinitiation failures due to the target cell notbeing configured as a neighboring cell forthe source cell



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9.5 Parameter OptimizationThe following parameters may need to be modified after intra-RAT ANR is activated.

Table 9-5 ANR-related parameters

Parameter Name Parameter ID Setting Notes

ANR delete cellthreshold

ANR.DelCellThd A larger value of this parameter results in ahigher probability of removing neighborrelationships from NRTs.

Least HandoverNum for Statistic

ANR.NcellHoStatNum

A larger value of this parameter results in morestable neighbor relationships in NRTs but alonger delay in removing neighbor relationshipsfrom NRTs.If only a few UEs are involved in ANRmeasurements on the live network, reduce thevalue of this parameter to accelerate NRTupdates.

Statistic cycle ANR.StatisticPeriod

A larger value of this parameter results in moreaccurate neighbor relationships added to NRTsbut a longer delay in updating NRTs.

Statistic NumberFor Delete NRT

ANR.StatisticNumForNRTDel

A larger value of this parameter results in alower probability of removing neighborrelationships from NRTs.

Statistic Cycle ForDelete NRT

ANR.StatisticPeriodForNRTDel

A larger value of this parameter results in alower probability of removing neighborrelationships from NRTs.

Fast ANR PCIreport amount

ANR.FastAnrRprtAmount

If only a few UEs are involved in periodicmeasurements, increase the value of thisparameter. Otherwise, reduce it.

Fast ANR PCIreport interval

ANR.FastAnrRprtInterval

If UEs move in the high mobility state, reducethe value of this parameter. Otherwise, increaseit.

Fast ANRchecking period

ANR.FastAnrCheckPeriod

If only a few UEs are involved in periodicmeasurements, increase the value of thisparameter. Otherwise, reduce it.



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Fast ANRmeasurementRSRP threshold

ANR.FastAnrRsrpThd

A larger value of this parameter results in ahigher RSRP requirement and therefore higherRSRP of the neighboring cells in the NCL.l In densely populated urban areas, increase the

value of this parameter to reduce theprobability of adding neighboring cells withlow RSRP to the NCL.

l In sparsely populated areas, reduce the valueof this parameter to increase the probabilityof adding neighboring cells with low RSRPto the NCL.

IntraRat Fast ANRmeasurement UEnumber

ANR.FastAnrIntraRatMeasUeNum

A larger value of this parameter results in moreaccurate NCL/NRT entry addition but a greaternegative impact on quality of service andnetwork throughput.

IntraRat Fast ANRvalid measurementmin UE number

ANR.FastAnrIntraRatUeNumThd

A larger value of this parameter results in moreaccurate NCL/NRT entry addition but a greaternegative impact on quality of service andnetwork throughput.

Fast ANR Mode ANR.FastAnrMode

This parameter specifies whether fast ANR addsdetected cells only to the NCL or to both theNCL and NRTs.l To allow fast ANR to add detected cells only

to the NCL, set this parameter toNCL_MODE(NCL Mode).

l To allow fast ANR to add detected cells tothe NCL and add the neighbor relationshipwith the strongest detected cell to an NRT, setthis parameter to NCL_NRT_MODE(NCLand NRT Mode).

l To allow fast ANR to add detected cells to anNRT based on the CGI reading results, setthis parameter toNRT_MODE(NRT_MODE).

Currently, fast ANR adds only the neighborrelationships with the strongest inter-frequency,UTRAN, and GERAN cells to NRTs. It does notadd the neighbor relationships with the strongestintra-frequency or CDMA2000 cells to NRTs.The NCL mode always takes effect for thedetected intra-frequency and CDMA2000 cells,irrespective of the parameter setting.



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Set not handoverattribute threshold

ANR.NOHOSetThd

This parameter specifies the threshold for thesuccess rate of handovers from the local cell to aneighboring cell. If the success rate is lower thanor equal to the threshold, ANR automatically setsthe No handover indicator parameter of theneighbor relationship to prohibit handovers.A larger value of this parameter results in ahigher probability of setting the No handoverindicator parameter toFORBID_HO_ENUM(Forbid Ho). A smallervalue of this parameter results in a lowerprobability.If the ANR.NoHoSetMode parameter is set toPCI_CHECK(PCI_CHECK), it isrecommended that the ANR.NOHOSetThdparameter be set to a value less than 80.

CA UE ChoseMode

ANR.CaUeChoseMode

This parameter specifies the policy based onwhich the eNodeB selects CA UEs to performANR measurements.l If there are few CA UEs in the network, the

recommended value isCA_UE_CARRIER_NUM(CA UE CarrierNumber).

l If there are a large number of CA UEs in thenetwork, the recommended value isANR_UE_CAP(ANR UE Capability).

l It is not recommended that this parameter beset to ANR_UE_CAP(ANR UECapability). This is because this valuepresents a strict UE selection condition,affecting the efficiency of ANR.

ANR FrequencyPriority

Cell.FreqPriorityForAnrEutranInterNFreq.FreqPriorityForAnr

This parameter specifies the priority of an E-UTRAN frequency for priority-based removalwhen the number of neighbor relationshipsreaches its maximum.l A smaller value of this parameter indicates a

lower priority and a higher probability ofremoving neighbor relationships with cells onthis E-UTRAN frequency.

l A larger value of this parameter results in theopposite effects.



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SmartPreallocationMode

ANR.SmartPreallocationMode

This parameter specifies whether to enable smartpreallocation during CGI reading.l If this parameter is set to ENABLE(Enable),

smart preallocation takes effect during CGIreading when smart preallocation is enabled.In this case, uplink scheduling delay becomesshorter but the DRX sleep time that UEs staybecomes shorter, decreasing the success rateof CGI reading. In addition, in PCI confusionscenarios, the service drop rate may increase.

l If this parameter is set toDISABLE(Disable), smart preallocationdoes not take effect during CGI reading evenwhen smart preallocation is enabled. In thiscase, uplink scheduling delay becomes longerbut the DRX sleep time that UEs staybecomes longer, increasing the success rate ofCGI reading. In addition, in PCI confusionscenarios, the service drop rate may decrease.

No Handover SetMode

ANR.NoHoSetMode

l If this parameter is set toNO_CHECK(NO_CHECK) and thenumber and success rate of handovers fromthe local cell to a neighboring cell meetcertain conditions, the source eNodeB doesnot instruct UEs to read the CGI of theneighboring cell and directly sets the Nohandover indicator parameter toFORBID_HO_ENUM(Forbid Ho) for thisneighboring cell.

l If this parameter is set toPCI_CHECK(PCI_CHECK) and thenumber and success rate of handovers fromthe local cell to a neighboring cell meetcertain conditions, the source eNodeBinstructs UEs to read the CGI of theneighboring cell to detect possible PCIconfusions. Based on the reading results, thesource eNodeB determines whether to set theNo handover indicator parameter toFORBID_HO_ENUM(Forbid Ho) for thisneighboring cell.



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OptimizationMode Strategy

ANR.OptModeStrategy

TheEutranCtrlOptMode(EutranCtrlOptMode)option controls the delivery mode ofoptimization advice of neighbor relationshipswith E-UTRAN cells. This option takes effect ifthe ANR.OptMode parameter is set toCONTROLLED(CONTROLLED).l If this option is selected, the eNodeB reports

the optimization advice to the U2000, andoperators determine whether to take theadvice on the U2000. The optimization issubject to the manual confirmation.

l If this option is deselected, the eNodeBautomatically handles the neighborrelationships with E-UTRAN cells.

Neighbor CellDeletion PunishPeriod

ANR.NcellDelPunishPeriod

A smaller value of this parameter indicates ashorter punishment period of removed neighborrelationships and results in a lower probabilitythat removed neighbor relationships can be re-added to NRTs by ANR and more stable NRTs.A larger value of this parameter results in theopposite effects.

EUTRANNeighbor CellDeletion PunishNumber

ANR.EutranNcellDelPunNum

This parameter specifies the number of timespenalty statistics about neighboring E-UTRANcell deletion are collected. When a neighborrelationship with an E-UTRAN cell is deleted, itcan be added to the NRT again if the number oftimes additions of the neighbor relationship aretriggered is greater than or equal to the value ofthis parameter.



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Table 9-6 DRX-related parameters


Long DRX Cycle for ANR DRX.LongDrxCycleFor-Anr

This parameter specifies thelong DRX cycle for intra-RAT ANR.A larger value of thisparameter results in a longerduration for UEs to performCGI reading and a longersystem delay.To ensure the CGI readingsuccess rate, you are advisedto set the long DRX cycle toa time greater than or equalto 256 ms.

DRX Inactivity Timer ForANR

DRX.DrxInactivityTimer-ForAnr

l A smaller value of thisparameter results in alonger DRX sleep timefor UEs during CGIreading, a higher CGIreading success rate, alonger delay of datascheduling.

l A larger value of thisparameter results in theopposite effects.



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Table 9-7 Parameters related to measurement gaps

ParameterName

Parameter ID Setting Notes

VoIP WithGap Mode

GlobalProcSwitch.VoipWithGapMode

This parameter specifies whether a UE runningVoIP services can set up measurement gaps toperform periodic measurements.If a UE initiates VoIP services and sets upbearers with QCI1 after being selected toperform fast ANR measurements, the eNodeBtakes different actions on the measurementconfiguration delivered to the UE depending onthe setting of theEnodeBAlgoSwitch.VoipWithGapModeparameter.l If this parameter is set to ENABLE(enable),

the eNodeB does not delete the fast-ANR-related measurement configuration.

l If this parameter is set toDISABLE(disable), the eNodeB deliversthe RRC measurement reconfiguration to theUE and deletes the fast-ANR-relatedmeasurement configuration.

9.6 Troubleshooting

Fault DescriptionAn intra- or inter-frequency handover fails.

Fault HandlingTo check whether this handover failure is caused by an incorrect neighbor relationshipconfiguration, perform the following steps:

Step 1 On the U2000 client, start a Uu interface tracing task for the source cell.

Choose Monitor > Signaling Trace > Signaling Trace Management. In the navigation treeon the left of the Signaling Trace Management tab page, double-click Uu Interface Traceunder LTE > Application Layer. Create and start a Uu interface tracing task.

Step 2 In the tracing result, check whether the source eNodeB has delivered a handover command. Ahandover command was delivered if the RRC_CONN_RECFG message contains the IEmobilityControlInfo.l If the eNodeB has not delivered the handover command, go to Step 3.l If the eNodeB has delivered the handover command, contact Huawei technical support.

Step 3 Run the LST EUTRANEXTERNALCELL command to check whether the target cell hasbeen configured as an external cell on the source eNodeB. Run the LSTEUTRANINTRAFREQNCELL or LST EUTRANINTERFREQNCELL command to



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check whether the intra- or inter-frequency neighbor relationship between the source andtarget cells has been configured on the source cell.l If they have not been configured, go to Step 4.l If they have been configured, contact Huawei technical support.

NOTE

In RAN sharing with common carriers mode, if the UE subscribes to a secondary operator, querythe EutranExternalCellPlmn MO to check whether the PLMN list has been configured.Configure the PLMN list if it has not been configured.

Step 4 Check whether the switch for intra-RAT event-triggered ANR has been set to on.l If the switch is off, set it to on.l If the switch is on, go to Step 5.

Step 5 Check whether the UE supports intra-RAT ANR. For details, see 3.4 ANR Capabilities ofUEs.l If the UE supports intra-RAT ANR, contact Huawei technical support.l If the UE does not support intra-RAT ANR, no further action is required.

----End



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10 Engineering Guidelines for Inter-RAT

ANR

This chapter describes how to deploy inter-RAT ANR.

eRANANR Management Feature Parameter Description 10 Engineering Guidelines for Inter-RAT ANR


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10.1 When to Use Inter-RAT ANRInter-RAT ANR consists of event-triggered ANR and fast ANR. It is recommended thatoperators plan the basic inter-RAT neighbor relationships before enable inter-RAT ANR. It isrecommended that inter-RAT event-triggered ANR be enabled all the time after networkconstruction finishes. Enable inter-RAT ANR if the network serves no commercial UEs or asmall number of commercial UEs. Disable inter-RAT ANR if the network serves a largenumber of commercial UEs or the engineering optimization (for example, downtilt adjustmentand power adjustment) has finishes. Refer to the deployment suggestions described in 9.1When to Use Intra-RAT ANR for when to use inter-RAT HO blacklists and whitelists.

To reduce the manual configuration workload, enable automatic optimization of blindhandover priorities and measurement priorities for inter-RAT neighbor relationships.


10.3 Deployment

10.3.1 ProcessNone

10.3.2 RequirementsInter-RAT ANR has the following requirements:l UEs on the network are DRX-capable and support ANR measurements on inter-RAT

cells.l iManager U2000 V200R015C00 or later is used. iManager U2000 V200R015C00 or

later supports the function of cross-U2000 neighboring cell information query.l The inter-RAT ANR measurement information (including frequencies to be measured)

has been configured. For ANR with UTRAN, the UtranNFreq MO has been configured.For ANR with GERAN, the GeranNfreqGroup and GeranNfreqGroupArfcn MOshave been configured. For details, see Inter-RAT Mobility Management in ConnectedMode Feature Parameter Description.

l To use automatic optimization of blind handover priorities of inter-RAT neighborrelationships, operators must enable the PS handover function and select the PS_HOoption of the CSFallBackPolicyCfg.CsfbHoPolicyCfg parameter. For details aboutCSFB, see CS Fallback Feature Parameter Description.

l Operators have purchased and activated the license listed in Table 10-1.



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Table 10-1 License information for inter-RAT ANR


LicenseControl Item

NE Sales Unit

LOFD-002002 Inter-RAT ANR LT1S00IANR00

Inter-RAT ANR(FDD)

eNodeB

per cell

10.3.3 Data PreparationThere are three types of data sources:l Network plan (negotiation not required): parameter values planned and set by the

operatorl Network plan (negotiation required): parameter values planned by the operator and

negotiated with the EPC or peer transmission equipmentl User-defined: parameter values set by users

The following table describes the parameter that must be set in the ENodeBAlgoSwitch MOto enable inter-RAT ANR.

ParameterName

Parameter ID

DataSource

Setting Notes

ANRalgorithm switch


Networkplan(negotiation notrequired)

Set the following options by referring to 10.1 When toUse Inter-RAT ANR:l UtranEventAnrSwitch(UtranEventAnrSwitch)l UtranFastAnrSwitch(UtranFastAnrSwitch)l UtranAutoNrtDeleteSwitch(UtranAutoNrtDeleteS-

witch)l GeranEventAnrSwitch(GeranEventAnrSwitch)l GeranFastAnrSwitch(GeranFastAnrSwitch)l GeranAutoNrtDeleteSwitch(GeranAutoNrtDeleteS-

witch)l MlbBasedEventAnrSwitch(MlbBasedEventAnrS-

witch)

BlindNcellOptimizationSwitch

ENodeBAlgoSwitch.BlindNcellOptSwitch


Set the following options by referring to 10.1 When toUse Inter-RAT ANR:l GeranBlindNcellOptSwitchl UtranBlindNcellOptSwitch



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ParameterName

Parameter ID

DataSource

Setting Notes

Neighboring CellRankingSwitch

ENodeBAlgoSwitch.NCellRankingSwitch


Set the following options:l GERAN_SWITCH(GREAN Neighboring Cell

Ranking Switch)l UTRAN_SWITCH(UTRAN Neighboring Cell

Ranking Switch)

HandoverSignalingOptimized Switch

ENodeBAlgoSwitch.HoSignalingOptSwitch


It is recommended that the McUtranNcellNumOptSw-tich(McUtranNcellNumOptSwtich) option be selected.

The following table describes the parameters that must be set in a UtranNFreq MO to specifywhether to allow ANR management of external cells and neighbor relationships with thesecells on a neighboring UTRAN frequency.

Parameter Name

Parameter ID


ANRIndication

UtranNFreq.AnrInd



The following table describes the parameters that must be set in a GeranNfreqGroup MO tospecify whether to allow ANR management of external cells and neighbor relationships withthese cells on frequencies in a GERAN frequency group.

Parameter Name

Parameter ID


ANRIndication

GeranNfreqGroup.AnrInd



The following table describes the parameter that must be set in the GlobalProcSwitch MO tocontrol whether to enable the optimization of measurement configuration for ANR withGERAN.



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Parameter Name

Parameter ID


ProtocolMessageOptimizationSwitch

GlobalProcSwitch.ProtocolMsgOptSwitch


Select the GeranAnrMcOptSwitch option.

The following table describes the parameters that must be set in the ANR MO to specifyoptimization mode, the threshold for removing a neighbor relationship from an NRT, and thepolicy based on which the eNodeB adds a neighbor relationship to an NRT in event-triggeredANR.

Parameter Name

Parameter ID


UtranHandoverThreshold forDeleteNRT

ANR.UtranNcellHoForNRTDelThd


l If this parameter is set to a non-zero valueand the number of neighbor relationships inan NRT has reached its maximum value, theeNodeB determines whether to remove aneighbor relationship with a neighboring cellbased on the number of measurement reportsthat include the neighboring cell and thenumber of handovers from the local cell tothe neighboring cell. When there are severalcandidate neighbor relationships that meetcertain conditions, ANR removes the lowest-priority neighbor relationship. The priority isdetermined by the number of handovers.

l If this parameter is set to 0 and the number ofneighbor relationships in an NRT has reachedits maximum value, the eNodeB determineswhether to remove a neighbor relationshipwith a neighboring cell based on the numberof measurement reports that include theneighboring cell.



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Parameter Name

Parameter ID


GeranHandoverThreshold forDeleteNRT

ANR.GeranNcellHoForNRTDelThd


l If this parameter is set to a non-zero valueand the number of neighbor relationships inan NRT has reached its maximum value, theeNodeB determines whether to remove aneighbor relationship with a neighboring cellbased on the number of measurement reportsthat include the neighboring cell and thenumber of handovers from the local cell tothe neighboring cell. When there are severalcandidate neighbor relationships that meetcertain conditions, ANR removes the lowest-priority neighbor relationship. The priority isdetermined by the number of handovers.

l If this parameter is set to 0 and the number ofneighbor relationships in an NRT has reachedits maximum value, the eNodeB determineswhether to remove a neighbor relationshipwith a neighboring cell based on the numberof measurement reports that include theneighboring cell.

NRTDeleteMode

ANR.NrtDelMode


Select or deselect the following options byreferring to 10.1 When to Use Inter-RATANR:l UTRAN_DELREDUNDANCENCELL(Rem

ove Redundant UTRAN NeighborRelationship)

l GERAN_DELREDUNDANCENCELL(Remove Redundant GERAN NeighborRelationship)

l UTRAN_DELERRORNCELL(RemoveError UTRAN Neighbor Relationship)

l GERAN_DELERRORNCELL(RemoveError GERAN Neighbor Relationship)



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Parameter Name

Parameter ID


EventANRMode

ANR.UtranEventAnrMode


This parameter specifies the policy based onwhich inter-RAT event-triggered ANR withUTRAN adds a neighbor relationship to an NRT.l If the adjacent cells of the source eNodeB do

not share a PCI, you are advised to set thisparameter to BASED_NCL(BASED_NCL).The source eNodeB can add a neighborrelationship to an NRT based on theneighboring cell information in the NCL.

l If many cells are served by an eNodeB andare not geographically adjacent, adjacentcells of the eNodeB may share PCIs. In thiscase, you are advised to set this parameter toNOT_BASED_NCL(NOT_BASED_NCL).The eNodeB instructs the UE to read the CGIagain. Based on the reported CGI, theeNodeB adds a neighbor relationship to anNRT.

EventANRMode

ANR.EventAnrMode


This parameter specifies the policy based onwhich inter-RAT event-triggered ANR withGERAN adds a neighbor relationship to an NRT.l If the adjacent cells of the source eNodeB do

not share a PCI, you are advised to set thisparameter to BASED_NCL(BASED_NCL).The source eNodeB can add a neighborrelationship to an NRT based on theneighboring cell information in the NCL.

l If many cells are served by an eNodeB andare not geographically adjacent, adjacentcells of the eNodeB may share PCIs. In thiscase, you are advised to set this parameter toNOT_BASED_NCL(NOT_BASED_NCL).The eNodeB instructs the UE to read the CGIagain. Based on the reported CGI, theeNodeB adds a neighbor relationship to anNRT.

The following table describes the parameter that must be set in the DRX MO to configure thelong DRX cycle that is specific for inter-RAT ANR.



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ParameterName

Parameter ID

DataSource

Setting Notes

LongDRXCyclefor Inter-RATANR

Drx.LongDRXCycleforIRatAnr


l If a neighboring UTRAN exists, retain the defaultvalue SF1280(1280 subframes) for this parameter.

l If a neighboring GERAN exists, set this parameter toSF2560(2560 subframes).

The following table describes the parameters that must be set in the UtranNCell MO toconfigure the UTRAN HO blacklist and the UTRAN HO whitelist.

Parameter Name

Parameter ID


Nohandoverflag

UtranNCell.NoHoFlag


Set this parameter toFORBID_HO_ENUM(Forbid Ho) whenconfiguring an HO blacklist.Set this parameter toPERMIT_HO_ENUM(Permit Ho) whenconfiguring an HO whitelist.

Noremoveindicator

UtranNCell.NoRmvFlag



The following table describes the parameters that must be set in the GeranNCell MO toconfigure the GERAN HO blacklist and the GERAN HO whitelist.

Parameter Name

Parameter ID


Nohandoverflag

GeranNCell.NoHoFlag


Set this parameter toFORBID_HO_ENUM(Forbid Ho) whenconfiguring an HO blacklist.Set this parameter toPERMIT_HO_ENUM(Permit Ho) whenconfiguring an HO whitelist.

Noremoveindicator

GeranNCell.NoRmvFlag





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10.3.6 Activation

Using the CME to Perform Batch Configuration for Newly Deployed eNodeBsEnter the values of the parameters listed in Table 10-2 in a summary data file, which alsocontains other data for the new eNodeBs to be deployed.

Then, import the summary data file into the CME for batch configuration. For detailedinstructions, see "Creating eNodeBs in Batches" in the initial configuration guide for theeNodeB, which is available in the eNodeB product documentation.




Table 10-2 Parameters for inter-RAT ANR

MO Sheet in theSummary Data File

ParameterGroup

Remarks

ENodeBAlgoSwitch

User-defined sheet.ENodeBAlgoSwitchis recommended.

AnrSwitch,NCellRankingSwitch

Add the ENodeBAlgoSwitchsheet to the summary data file.

UTRANNFREQ

User-defined sheet.UTRANNFREQ isrecommended.

AnrInd Add the UTRANNFREQsheet to the summary data file.

GERANNFREQGROUP

User-defined sheet.GERANNFREQGROUP isrecommended.

AnrInd Add theGERANNFREQGROUPsheet to the summary data file.

GLOBALPROCSWITCH

User-defined sheet.GLOBALPROCSWITCH isrecommended.

GeranAnrMcOptSwitch

Add theGLOBALPROCSWITCHsheet to the summary data file.



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ParameterGroup

Remarks

ANR User-defined sheet.ANR isrecommended.

FastAnrRprtAmount,NrtDelMode,UtranEventAnrMode,GeranEventAnrMode

Add the ANR sheet to thesummary data file.

UtranNCell User-defined sheet.UtranNCell isrecommended.

NoHoFlag,NoRmvFlag

Add the UtranNCell sheet tothe summary data file.

GeranNcell User-defined sheet.GeranNcell isrecommended.

NoHoFlag,NoRmvFlag

Add the GeranNCell sheet tothe summary data file.






Step 4 Choose CME > LTE Application > Import Data > Import Base Station BulkConfiguration Data (U2000 client mode), or choose LTE Application > Import Data >Import Base Station Bulk Configuration Data (CME client mode), to import the summarydata file into the CME, and then start the data verification.


----End



115


On the CME, set the parameters listed in the "Data Preparation" section for a single eNodeB.The procedure is as follows:








----End

Using MML Commands

Activating Event-triggered ANR with UTRAN

Step 1 Run the MOD ENODEBALGOSWITCH command with theUtranEventAnrSwitch(UtranEventAnrSwitch) option of the ANR algorithm switchparameter selected.

Step 2 Run the MOD UTRANNFREQ command with the ANR Indication parameter set toALLOWED(ALLOWED).



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Step 3 Run the MOD ENODEBALGOSWITCH with theMcUtranNcellNumOptSwtich(McUtranNcellNumOptSwtich) option of the HandoverSignaling Optimized Switch parameter selected.


maximum", select the UtranAutoNrtDeleteSwitch(UtranAutoNrtDeleteSwitch)option of the ANR algorithm switch parameter.

l To enable removal of redundant neighbor relationships, select theUtranAutoNrtDeleteSwitch(UtranAutoNrtDeleteSwitch) option of the ANRalgorithm switch parameter and the UTRAN_DELREDUNDANCENCELL(RemoveRedundant UTRAN Neighbor Relationship) option of the NRT Delete Modeparameter.

l To enable removal of inappropriate neighbor relationships, select theUtranAutoNrtDeleteSwitch(UtranAutoNrtDeleteSwitch) option of the ANRalgorithm switch parameter and the UTRAN_DELERRORNCELL(Remove ErrorUTRAN Neighbor Relationship) option of the NRT Delete Mode parameter.

l To enable event-triggered ANR based on MLB, select theMlbBasedEventAnrSwitch(MlbBasedEventAnrSwitch) option of the ANRalgorithm switch parameter.

----End

Activating Fast ANR with UTRAN

Step 1 Run the MOD ENODEBALGOSWITCH command with theUtranFastAnrSwitch(UtranFastAnrSwitch) option of the ANR algorithm switchparameter selected.

Step 2 Run the MOD UTRANNFREQ command with the ANR Indication parameter set toALLOWED(ALLOWED).

----End

Activating Event-triggered ANR with GERAN

Step 1 Run the MOD ENODEBALGOSWITCH command with theGeranEventAnrSwitch(GeranEventAnrSwitch) option of the ANR algorithm switchparameter selected.

Step 2 Run the MOD GERANNFREQGROUP command with the ANR Indication parameter setto ALLOWED(ALLOWED).

Step 3 Run the MOD GLOBALPROCSWITCH with the GeranAnrMcOptSwitch option of theProtocol Message Optimization Switch parameter selected.


maximum", select the GeranAutoNrtDeleteSwitch(GeranAutoNrtDeleteSwitch)option of the ANR algorithm switch parameter.

l To enable removal of redundant neighbor relationships, select theGeranAutoNrtDeleteSwitch(GeranAutoNrtDeleteSwitch) option of the ANRalgorithm switch parameter and the GERAN_DELREDUNDANCENCELL(RemoveRedundant GERAN Neighbor Relationship) option of the NRT Delete Modeparameter.



117

l To enable removal of inappropriate neighbor relationships, select theGeranAutoNrtDeleteSwitch(GeranAutoNrtDeleteSwitch) option of the ANRalgorithm switch parameter and the GERAN_DELERRORNCELL(Remove ErrorGERAN Neighbor Relationship) option of the NRT Delete Mode parameter.

l To enable event-triggered ANR based on MLB, select theMlbBasedEventAnrSwitch(MlbBasedEventAnrSwitch) option of the ANRalgorithm switch parameter.

----End

Activating Fast ANR with GERAN

Step 1 Run the MOD ENODEBALGOSWITCH command with theGeranFastAnrSwitch(GeranFastAnrSwitch) option of the ANR algorithm switchparameter selected.

Step 2 Run the MOD GERANNFREQGROUP command with the ANR Indication parameter setto ALLOWED(ALLOWED).

----End


Run the MOD ANR command with the Fast ANR PCI report amount parameter set tor4(4).

Activating Automatic Optimization of Blind Handover Priorities for NeighboringUTRAN Cells

Run the MOD ENODEBALGOSWITCH command with the UtranBlindNcellOptSwitchoption of the Blind Ncell Optimization Switch parameter selected.

Activating Automatic Optimization of Blind Handover Priorities for NeighboringGERAN Cells

Run the MOD ENODEBALGOSWITCH command with the GeranBlindNcellOptSwitchoption of the Blind Ncell Optimization Switch parameter selected.

Activating Automatic Optimization of Measurement Priorities of UTRAN NeighborRelationships

Run the MOD ENODEBALGOSWITCH command with the UTRAN_SWITCH(UTRANNeighboring Cell Ranking Switch) option of the Neighboring Cell Ranking Switchparameter selected.

Activating Automatic Optimization of Measurement Priorities of GERAN NeighborRelationships

Run the MOD ENODEBALGOSWITCH command with the GERAN_SWITCH(GREANNeighboring Cell Ranking Switch) option of the Neighboring Cell Ranking Switchparameter selected.


Run the MOD ANR with the Utran Event ANR Mode and Geran Event ANR Modeparameters specified.

Configuring HO Blacklists and HO Whitelists



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Run the ADD UTRANNCELL and ADD GERANNCELL commands to configure UTRANand GERAN HO blacklists/whitelists, respectively.

l To whitelist a cell, set the No handover indicator and No remove indicator parametersto PERMIT_HO_ENUM(Permit Ho) and FORBID_RMV_ENUM(Forbid ANRRemove), respectively.

l To blacklist a cell, set the No handover indicator and No remove indicator parametersto FORBID_HO_ENUM(Forbid Ho) and FORBID_RMV_ENUM(Forbid ANRRemove), respectively.

MML Command ExamplesActivating Event-triggered ANR with UTRAN

MOD ENODEBALGOSWITCH: AnrSwitch=UtranEventAnrSwitch-1;MOD UTRANNFREQ: LocalCellId=xx, UtranDlArfcn=xx, AnrInd=ALLOWED;MOD ENODEBALGOSWITCH: HoSignalingOptSwitch=McUtranNcellNumOptSwtich-1;MOD ENODEBALGOSWITCH: AnrSwitch=UtranAutoNrtDeleteSwitch-1;MOD ANR: NrtDelMode=UTRAN_DELREDUNDANCENCELL-1&UTRAN_DELERRORNCELL-1;MOD ENODEBALGOSWITCH: AnrSwitch=MlbBasedEventAnrSwitch-1;

Activating Fast ANR with UTRAN

MOD ENODEBALGOSWITCH: AnrSwitch=UtranFastAnrSwitch-1;MOD UTRANNFREQ: LocalCellId=xx, DlEarfcn=xx, AnrInd=ALLOWED;

Activating Event-triggered ANR with GERAN

MOD ENODEBALGOSWITCH: AnrSwitch=GeranEventAnrSwitch-1;MOD GERANNFREQGROUP: LocalCellId=xx, DlEarfcn=xx, AnrInd=ALLOWED;MOD GLOBALPROCSWITCH: ProtocolMsgOptSwitch=GeranAnrMcOptSwitch-1;MOD ENODEBALGOSWITCH: AnrSwitch=GeranAutoNrtDeleteSwitch-1;MOD ANR: NrtDelMode=GERAN_DELREDUNDANCENCELL-1&GERAN_DELERRORNCELL-1;MOD ENODEBALGOSWITCH: AnrSwitch=MlbBasedEventAnrSwitch-1;

Activating Fast ANR with GERAN

MOD ENODEBALGOSWITCH: AnrSwitch=GeranFastAnrSwitch-1;MOD GERANNFREQGROUP: LocalCellId=xx, DlEarfcn=xx, AnrInd=ALLOWED;


MOD ANR: FastAnrRprtAmount=r4;

Activating Automatic Optimization of Blind Handover Priorities for NeighboringUTRAN Cells

MOD ENODEBALGOSWITCH: BlindNcellOptSwitch=UtranBlindNcellOptSwitch-1;

Activating Automatic Optimization of Blind Handover Priorities for NeighboringGERAN Cells

MOD ENODEBALGOSWITCH: BlindNcellOptSwitch=GeranBlindNcellOptSwitch-1;

Activating Automatic Optimization of Measurement Priorities of UTRAN NeighborRelationships

MOD ENODEBALGOSWITCH: NCellRankingSwitch=UTRAN_SWITCH-1;

Activating Automatic Optimization of Measurement Priorities of GERAN NeighborRelationships

MOD ENODEBALGOSWITCH: NCellRankingSwitch=GERAN_SWITCH-1;




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MOD ANR: UtranEventAnrMode=NOT_BASED_NCL;MOD ANR: GeranEventAnrMode=NOT_BASED_NCL;

Configuring the UTRAN HO Blacklist and Whitelist

ADD UTRANNCELL: LocalCellId=0, Mcc="460", Mnc="00", RncId=123, CellId=0, NoHoFlag=FORBID_HO_ENUM, NoRmvFlag=FORBID_RMV_ENUM;ADD UTRANNCELL: LocalCellId=0, Mcc="460", Mnc="00", RncId=123, CellId=0, NoHoFlag=PERMIT_HO_ENUM, NoRmvFlag=FORBID_RMV_ENUM;

Configuring the GERAN HO Blacklist and Whitelist

ADD GERANNCELL: LocalCellId=0, Mcc="460", Mnc="00", Lac=1, GeranCellId=0, NoRmvFlag=FORBID_RMV_ENUM, NoHoFlag=FORBID_HO_ENUM;ADD GERANNCELL: LocalCellId=0, Mcc="460", Mnc="00", Lac=1, GeranCellId=0, NoRmvFlag=FORBID_RMV_ENUM, NoHoFlag=PERMIT_HO_ENUM;

10.3.7 Activation ObservationThe procedure for observing the activation of inter-RAT ANR is similar to that of intra-RATANR. For details, see 9.3.7 Activation Observation. The difference is that the commandsused to list the configurations of neighbor relationships with UTRAN cells and GERAN cellsare LST UTRANNCELL and LST GERANNCELL, respectively.


10.3.9 Deactivation




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Table 10-3 Parameters for inter-RAT ANR


ParameterGroup

Setting Notes

ENodeBAlgoSwitch


ANRalgorithmswitch,Blind NcellOptimization Switch,NCellRankingSwitch,HoSignalingOptSwitch

l Deselect thecorresponding options todeactivate the ANRalgorithm:– UtranEventAnrSwitch– GeranEventAnrSwitch– UtranAutoNrtDeleteS-

witch– GeranAutoNrtDele-

teSwitch– UtranFastAnrSwitch– GeranFastAnrSwitch– MlbBasedEventAnrS-

witch– UTRAN_DELREDU

NDANCENCELL– GERAN_DELREDU

NDANCENCELL– UTRAN_DELERRO

RNCELLl Deselect the

corresponding options todeactivate automaticoptimization of blindhandover priorities ofinter-RAT neighborrelationships:– UtranBlindNcellOptS-

witch– GeranBlindNcellOptS

witchl Deselect the

corresponding options todeactivate automaticoptimization ofmeasurement priorities ofinter-RAT neighborrelationships:– UTRAN_SWITCH– GERAN_SWITCH

l Deselected theMcUtranNcellNumOptSwtich option to disable



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ParameterGroup

Setting Notes

the optimization of thenumber of neighboringUTRAN cells containedin the measurementconfiguration.

UTRANNFREQ User-defined sheet.UTRANNFREQ isrecommended.


GERANNFREQGROUP

User-defined sheet.GERANNFREQGROUP is recommended.


GLOBALPROCSWITCH

User-defined sheet.GLOBALPROCSWITCH isrecommended.

ProtocolMsgOptSwitch

Deselect theGeranAnrMcOptSwitchoption to disable theoptimization of themeasurement configurationrelated to ANR withGERAN.



Using MML Commands

Deactivating Event-triggered ANR with UTRAN

Step 1 Run the MOD UTRANNFREQ command with the ANR Indication parameter set toNOT_ALLOWED(NOT_ALLOWED) to disable event-triggered ANR with UTRANdedicated for a UTRAN frequency.

Step 2 Run the MOD ENODEBALGOSWITCH command with theUtranEventAnrSwitch(UtranEventAnrSwitch) option of the ANR algorithm switchparameter deselected.

Step 3 (Optional) However, if you intend to disable only certain functions of event-triggered ANRwith UTRAN, deselect the corresponding options of the ANR algorithm switch or NRTDelete Mode parameter while leaving the UtranEventAnrSwitch(UtranEventAnrSwitch)option of the ANR algorithm switch parameter on.l To disable automatic removal of neighbor relationships with UTRAN cells, deselect the

UtranAutoNrtDeleteSwitch(UtranAutoNrtDeleteSwitch) option of the ANRalgorithm switch parameter.– To disable only removal of redundant neighbor relationships, deselect the

UTRAN_DELREDUNDANCENCELL(Remove Redundant UTRAN NeighborRelationship) option of the NRT Delete Mode parameter.



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– To disable only removal of inappropriate neighbor relationships, deselect theUTRAN_DELERRORNCELL(Remove Error UTRAN Neighbor Relationship)option of the NRT Delete Mode parameter.

l To disable event-triggered ANR based on MLB, deselect theMlbBasedEventAnrSwitch(MlbBasedEventAnrSwitch) option of the ANRalgorithm switch parameter.

l To disable the optimization of the number of neighboring UTRAN cells contained in themeasurement configuration, deselect theMcUtranNcellNumOptSwtich(McUtranNcellNumOptSwtich) option of theHandover Signaling Optimized Switch parameter.

----End

Deactivating Fast ANR with UTRAN

Step 1 Run the MOD UTRANNFREQ command with the ANR Indication parameter set toNOT_ALLOWED(NOT_ALLOWED) to disable fast ANR with UTRAN dedicated for aUTRAN frequency.

Step 2 Run the MOD ENODEBALGOSWITCH command with theUtranFastAnrSwitch(UtranFastAnrSwitch) option of the ANR algorithm switchparameter deselected.

----End

Deactivating Event-triggered ANR with GERAN

Step 1 Run the MOD GERANNFREQGROUP with the ANR Indication parameter set toNOT_ALLOWED(NOT_ALLOWED) to disable event-triggered ANR with GERANdedicated for a GERAN frequency group.

Step 2 Run the MOD ENODEBALGOSWITCH command with theGeranEventAnrSwitch(GeranEventAnrSwitch) option of the ANR algorithm switchparameter deselected.

Step 3 (Optional) However, if you intend to disable only certain functions of event-triggered ANRwith GERAN, deselect the corresponding options of the ANR algorithm switch or NRTDelete Mode parameter while leaving the GeranEventAnrSwitch(GeranEventAnrSwitch)option of the ANR algorithm switch parameter on.

l To disable automatic removal of neighbor relationships with GERAN cells, deselect theGeranAutoNrtDeleteSwitch(GeranAutoNrtDeleteSwitch) option of the ANRalgorithm switch parameter.

– To disable only removal of redundant neighbor relationships, deselect theGERAN_DELREDUNDANCENCELL(Remove Redundant GERAN NeighborRelationship) option of the NRT Delete Mode parameter.

– To disable only removal of inappropriate neighbor relationships, deselect theGERAN_DELERRORNCELL(Remove Error GERAN NeighborRelationship) option of the NRT Delete Mode parameter.

l To disable event-triggered ANR based on MLB, deselect theMlbBasedEventAnrSwitch(MlbBasedEventAnrSwitch) option of the ANRalgorithm switch parameter.



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l To disable the optimization of the measurement configuration related to ANR withGERAN, deselect the GeranAnrMcOptSwitch option of the Protocol MessageOptimization Switch parameter.

----End

Deactivating Fast ANR with GERAN

Step 1 Run the MOD GERANNFREQGROUP command with the ANR Indication parameter setto NOT_ALLOWED(NOT_ALLOWED) to disable fast ANR with GERAN dedicated for aGERAN frequency group.

Step 2 Run the MOD ENODEBALGOSWITCH command with theGeranFastAnrSwitch(GeranFastAnrSwitch) option of the ANR algorithm switchparameter deselected.

----End

Deactivating Automatic Optimization of Blind Handover Priorities for NeighboringUTRAN Cells

Run the MOD ENODEBALGOSWITCH command with the UtranBlindNcellOptSwitchoption of the Blind Ncell Optimization Switch parameter deselected.

Deactivating Automatic Optimization of Blind Handover Priorities for NeighboringGERAN Cells

Run the MOD ENODEBALGOSWITCH command with the GeranBlindNcellOptSwitchoption of the Blind Ncell Optimization Switch parameter deselected.

Deactivating Automatic Optimization of Measurement Priorities of UTRAN NeighborRelationships

Run the MOD ENODEBALGOSWITCH command with the UTRAN_SWITCH(UTRANNeighboring Cell Ranking Switch) option of the Neighboring Cell Ranking Switchparameter deselected.

Deactivating Automatic Optimization of Measurement Priorities of GERAN NeighborRelationships

Run the MOD ENODEBALGOSWITCH command with the GERAN_SWITCH(GREANNeighboring Cell Ranking Switch) option of the Neighboring Cell Ranking Switchparameter deselected.

MML Command Examples

Deactivating Event-triggered ANR with UTRAN

MOD UTRANNFREQ: LocalCellId=xx, DlEarfcn=xx, AnrInd=NOT_ALLOWED;MOD ENODEBALGOSWITCH: AnrSwitch=UtranEventAnrSwitch-0;MOD ENODEBALGOSWITCH: AnrSwitch=IntraRatAnrAutoDelSwitch-0;MOD ANR: NrtDelMode=UTRAN_DELREDUNDANCENCELL-0&UTRAN_DELERRORNCELL-0;MOD ENODEBALGOSWITCH: AnrSwitch=MlbBasedEventAnrSwitch-0;MOD ENODEBALGOSWITCH: HoSignalingOptSwitch=McUtranNcellNumOptSwtich-0;

Deactivating Fast ANR with UTRAN

MOD UTRANNFREQ: LocalCellId=xx, DlEarfcn=xx, AnrInd=NOT_ALLOWED;MOD ENODEBALGOSWITCH: AnrSwitch=UtranFastAnrSwitch-0;

Deactivating Event-triggered ANR with GERAN



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MOD GERANNFREQGROUP: LocalCellId=xx, DlEarfcn=xx, AnrInd=NOT_ALLOWED;MOD ENODEBALGOSWITCH: AnrSwitch=GeranEventAnrSwitch-0;MOD ENODEBALGOSWITCH: AnrSwitch=IntraRatAnrAutoDelSwitch-0;MOD ANR: NrtDelMode=GERAN_DELREDUNDANCENCELL-0&GERAN_DELERRORNCELL-0;MOD ENODEBALGOSWITCH: AnrSwitch=MlbBasedEventAnrSwitch-0;MOD GLOBALPROCSWITCH: ProtocolMsgOptSwitch=GeranAnrMcOptSwitch-0;

Deactivating Fast ANR with GERANMOD GERANNFREQGROUP: LocalCellId=xx, DlEarfcn=xx, AnrInd=NOT_ALLOWED;MOD ENODEBALGOSWITCH: AnrSwitch=GeranFastAnrSwitch-0;

Deactivating Automatic Optimization of Blind Handover Priorities for NeighboringUTRAN CellsMOD ENODEBALGOSWITCH: BlindNcellOptSwitch=UtranBlindNcellOptSwitch-0;

Deactivating Automatic Optimization of Blind Handover Priorities for NeighboringGERAN CellsMOD ENODEBALGOSWITCH: BlindNcellOptSwitch=GeranBlindNcellOptSwitch-0;

Deactivating Automatic Optimization of Measurement Priorities of UTRAN NeighborRelationshipsMOD ENODEBALGOSWITCH: NCellRankingSwitch=UTRAN_SWITCH-0;

Deactivating Automatic Optimization of Measurement Priorities of GERAN NeighborRelationshipsMOD ENODEBALGOSWITCH: NCellRankingSwitch=GERAN_SWITCH-0;

10.4 Performance MonitoringUsing inter-RAT ANR decreases the probability that the configurations of neighboring cellsare missing or incorrect, thereby increasing the inter-RAT handover success rate anddecreasing the service drop rate. To monitor the performance of inter-RAT ANR, you cancheck the performance counters related to handovers and service drops.

Table 10-4 lists the performance counters that can reflect the network performance after inter-RAT ANR is enabled. As inter-RAT neighbor relationships are configured, the values of thesecounters decrease.

Table 10-4 Counters related to inter-RAT ANR

CounterID

Counter Name Counter Description

1526728468

L.IRATHO.E2W.NoNRT

Number of handover initiation failures from E-UTRAN toWCDMA networks due to the target cell not beingconfigured as a neighboring cell for the source cell

1526728469

L.IRATHO.E2T.NoNRT

Number of handover initiation failures from E-UTRAN toTD-SCDMA networks due to the target cell not beingconfigured as a neighboring cell for the source cell

1526728470

L.IRATHO.E2G.NoNRT

Number of handover initiation failures from E-UTRAN toGERAN due to the target cell not being configured as aneighboring cell for the source cell



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10.5 Parameter OptimizationThe parameters that may need to be modified after inter-RAT ANR is activated are similar tothose to be modified after intra-RAT ANR is activated. The following table describes only theparameters that are specific to inter-RAT ANR.

Table 10-5 Parameters specific to inter-RAT ANR


InterRat Fast ANRmeasurement UEnumber

ANR.FastAnrInterRatMeasUeNum

A larger value of this parameter results in moreaccurate NCL/NRT entry addition but a greaternegative impact on quality of service and uplinknetwork throughput.

IntraRat Fast ANRvalid measurementmin UE number

ANR.FastAnrInterRatUeNumThd

A larger value of this parameter results in moreaccurate NCL/NRT entry addition but a greaternegative impact on quality of service and uplinknetwork throughput.

UTRAN Fast ANRRSCP threshold

ANR.FastAnrRscpThd

A larger value of this parameter results in ahigher RSCP requirement and therefore higherRSCP of the neighboring cells in the NCL.l In densely populated urban areas, increase

the value of this parameter to reduce theprobability of adding neighboring cells withlow RSCP to the NCL.

l In sparsely populated areas, reduce the valueof this parameter to increase the probabilityof adding neighboring cells with low RSCPto the NCL.

GERAN Fast ANRRSSI threshold

ANR.FastAnrRssiThd

A larger value of this parameter results in ahigher RSSI requirement and therefore higherRSSI of the neighboring cells in the NCL.l In densely populated urban areas, increase

the value of this parameter to reduce theprobability of adding neighboring cells withlow RSSI to the NCL.

l In sparsely populated areas, reduce the valueof this parameter to increase the probabilityof adding neighboring cells with low RSSI tothe NCL.



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UtranNFreq.FreqPriorityForAnr

This parameter specifies the priority of aneighboring UTRAN frequency for priority-based removal when the number of neighborrelationships reaches its maximum.l A smaller value of this parameter indicates a

lower priority and a higher probability ofremoving neighbor relationships with cellson this UTRAN frequency.



GeranNfreqGroup.FreqPriorityForAnr

This parameter specifies the priority of aneighboring GERAN frequency group forpriority-based removal when the number ofneighbor relationships reaches its maximum.l A smaller value of this parameter indicates a

lower priority and a higher probability ofremoving neighbor relationships with cellson this UTRAN frequency.


Period forNeighboring CellRanking

ANR.PeriodForNCellRanking

A larger value of this parameter results in moresamples.For a network that serves a large number ofUEs, reduce the value of this parameter toaccelerate measurement priorities updates.

Event ANR WithVoIP Mode

ANR.EventAnrWithVoipMode

This parameter controls whether an eNodeBselects UEs performing services with a QCI of 1to perform measurements for even-triggeredANR with UTRAN or GERAN.

UTRAN EventANR CGI Timer

ANR.UtranEventAnrCgiTimer

A larger value of this parameter results in alonger time for UEs to perform CGI reading forevent-triggered ANR with UTRAN, a largersuccess rate of CGI reading, and a longerscheduling latency, affecting user experience.A smaller value of this parameter results in ashorter time for UEs to perform CGI reading forevent-triggered ANR with UTRAN and asmaller success rate of CGI reading.



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GERAN EventANR CGI Timer

ANR.GeranEventAnrCgiTimer

A larger value of this parameter results in alonger time for UEs to perform CGI reading forevent-triggered ANR with GERAN, a largersuccess rate of CGI reading, and a longerscheduling latency, affecting user experience.A smaller value of this parameter results in ashorter time for UEs to perform CGI reading forevent-triggered ANR with GERAN and asmaller success rate of CGI reading.

Optimization ModeStrategy

ANR.OptModeStrategy

The UtranCtrlOptMode(UtranCtrlOptMode)option controls the delivery mode ofoptimization advice of neighbor relationshipswith UTRAN cells. This option takes effect ifthe ANR.OptMode parameter is set toCONTROLLED(CONTROLLED).l If this option is selected, the eNodeB reports


l If this option is deselected, the eNodeBautomatically handles the neighborrelationships with UTRAN cells.

TheGeranCtrlOptMode(GeranCtrlOptMode)option controls the delivery mode ofoptimization advice of neighbor relationshipswith GERAN cells. This option takes effect ifthe ANR.OptMode parameter is set toCONTROLLED(CONTROLLED).l If this option is selected, the eNodeB reports


l If this option is deselected, the eNodeBautomatically handles the neighborrelationships with GERAN cells.

Neighbor CellDeletion PunishPeriod

ANR.NcellDelPunishPeriod

A smaller value of this parameter indicates ashorter punishment period of removed neighborrelationships and results in a lower probabilitythat removed neighbor relationships can be re-added to NRTs by ANR and more stable NRTs.A larger value of this parameter results in theopposite effects.



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UTRAN NeighborCell DeletionPunish Number

ANR.UtranNcellDelPunNum

This parameter specifies the number of timespenalty statistics about neighboring UTRANcell deletion are collected. When a neighborrelationship with a UTRAN cell is deleted, itcan be added to the NRT again if the number oftimes additions of the neighbor relationship aretriggered is greater than or equal to the value ofthis parameter.

Table 10-6 Parameters related to bind handover priorities


Statistic Period BlindNcellOpt.StatisticPeriod

A larger value of this parameter results in moresamples. For a network that serves a largenumber of UEs, reduce the value of thisparameter to accelerate NRT updates.

Sample NumberThreshold

BlindNcellOpt.SampleNumThd

A larger value of this parameter results in alarger number of required samples within ameasurement period and a lower probability ofoptimizing blind handover priorities.

Handover SuccessRatio Threshold

BlindNcellOpt.HoSuccRateThd

A larger value of this parameter results in alower probability of allowing blind handovers toa neighboring cell.It is recommended that this parameter be set to avalue not less than 98% to prevent failures ofhandovers for CSFB.

CSFB HandoverAttemption RatioThreshold

BlindNcellOpt.CsfbHoAttempRatioThd

A larger value of this parameter results in alower probability of allowing blind handovers toa neighboring cell.

Blind HandoverSuccess RatioThreshold

BlindNcellOpt.BlindHoSuccRateThd

A larger value of this parameter results in ahigher probability of prohibiting blindhandovers to a neighboring cell.

10.6 Troubleshooting

Fault DescriptionA coverage-based handover from an E-UTRAN cell to a UTRAN cell fails.

Fault HandlingTo check whether this handover failure is caused by an incorrect neighbor relationshipconfiguration, perform the following steps:



129

Step 1 Start a Uu interface tracing task for the source cell on the U2000 client. In the tracing result,check whether the eNodeB has delivered a handover command, which carries the IEmobilityFromEUTRACommand.l If the eNodeB has not delivered the handover command, go to Step 2.l If the eNodeB has delivered the handover command, contact Huawei technical support.

Step 2 Run the LST UTRANEXTERNALCELL command to check whether the target cell hasbeen configured as an external cell on the source eNodeB. Run the LST UTRANNCELLcommand to check whether the neighbor relationship between the source and target cells hasbeen configured on the source cell.l If they have not been configured, go to Step 3.l If they have been configured, contact Huawei technical support.

NOTE

In RAN sharing with common carriers mode, if the UE subscribes to a secondary operator, querythe UtranExternalCellPlmn MO to check whether the PLMN list has been configured. Configurethe PLMN list if it has not been configured.

Step 3 Check whether the switch for event-triggered ANR with UTRAN has been set to on.l If the switch is off, set it to on.l If the switch is on, go to Step 4.

Step 4 Check whether the UE supports ANR with UTRAN.l If the UE supports ANR with UTRAN, contact Huawei technical support.l If the UE does not support ANR with UTRAN, no further action is required.

----End



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11 Engineering Guidelines for ANR with

Shared Cells

This chapter describes how to deploy ANR with shared cells.

eRANANR Management Feature Parameter Description 11 Engineering Guidelines for ANR with Shared Cells


131

11.1 When to Use ANR with Shared Cells

ANR with Shared E-UTRAN Cells

Enable ANR with shared E-UTRAN cells when both of the following conditions are met:

l Neighboring E-UTRAN cells are shared by operators.– If the shared E-UTRAN cells broadcast their PLMN lists in an RR manner, select

the NBSLTEPLMNRoundSwitch(NBSLTEPLMNRoundSwitch) option of theENodeBAlgoSwitch.RanSharingAnrSwitch parameter.

– If the shared E-UTRAN cells do not broadcast their PLMN lists in an RR manner,select the NBSLTERANSharingSwitch(NBSLTERANSharingSwitch) optionand clear the NBSLTEPLMNRoundSwitch(NBSLTEPLMNRoundSwitch)option of the ENodeBAlgoSwitch.RanSharingAnrSwitch parameter.

l The serving and neighboring cells are managed by the same U2000, or the configurationdata of the neighboring cells has been imported to the U2000 that manages the servingcell.

Disable ANR with shared E-UTRAN cells when one of the following conditions is met:

l Neighboring E-UTRAN cells are not shared by operators.l The serving and neighboring cells are not managed by the same U2000 and the U2000

that manages the serving cell does not contain the configuration data of the neighboringcells.

ANR with Shared UTRAN Cells

Enable ANR with shared UTRAN cells by selecting theNBSUTRANRANSharingSwitch(NBSUTRANRANSharingSwitch) option of theENodeBAlgoSwitch.RanSharingAnrSwitch parameter when both of the followingconditions are met:

l Neighboring UTRAN cells are shared by operators.l The serving and neighboring cells are managed by the same U2000, or the configuration

data of the neighboring cells has been imported to the U2000 that manages the servingcell.

Disable ANR with shared UTRAN cells when one of the following conditions is met:

l Neighboring UTRAN cells are not shared by operators.l The serving and neighboring cells are not managed by the same U2000 and the U2000


ANR with Shared GERAN Cells

Enable ANR with shared GERAN cells by selecting theNBSGERANRANSharingSwitch(NBSGERANRANSharingSwitch) option of theENodeBAlgoSwitch.RanSharingAnrSwitch parameter when both of the followingconditions are met:



132

l Neighboring GERAN cells are shared by operators.l The serving and neighboring cells are managed by the same U2000, or the configuration

data of the neighboring cells has been imported to the U2000 that manages the servingcell.

Disable ANR with shared GERAN cells when one of the following conditions is met:

l Neighboring GERAN cells are not shared by operators.l The serving and neighboring cells are not managed by the same U2000 and the U2000



11.3 Deployment

11.3.1 ProcessNone

11.3.2 RequirementsANR with shared cells has the following requirements:

l UEs on the network are DRX-capable and support ANR measurements on intra-frequency, inter-frequency, or inter-RAT cells (depending on the ANR type).

l Event-triggered ANR or fast ANR with the corresponding RAT is enabled. This isrequired because UEs need to read CGIs over the radio interface.

l iManager U2000 V200R015C00 or later is used. iManager U2000 V200R015C00 orlater supports the function of cross-U2000 neighboring cell information query. If theserving cell and neighboring cells are not managed by the same U2000, the U2000 thatmanages the serving cell must support the function of cross-U2000 neighboring cellinformation query. In this case, operators need to import the neighboring cell informationto the U2000 that manages the serving cell on scheduled basis. Assumes that the servingcell (cell A) is managed by U2000 A, and the neighboring cell (cell B) is managed byU2000 B. The operations and requirements of importing neighboring cell information toU2000 A is as follows:– Set a server in U2000 B for automatically uploading files through the FTP to U2000

A and transfer information of neighboring cells managed by U2000 B to U2000 A.On the menu bar of the U2000 client, choose Software > FTP Auto UploadManagement > Target Server Setting. The Target Server Setting dialog box isdisplayed. In the left pane, select CME NCCDM and click Add. In the displayeddialog box, set the parameters as follows:Set the Server IP parameter to the IP address of U2000 A.Set the Server Directory to the file path where files are stored after they aretransferred to the FTP server.For details, see "Setting a Server for Auto-Uploading Files Through the FTP" in theSoftware and Hardware Management in the U2000 product documentation.



133

– On the U2000 B, use the CME to create a task of exporting the neighboring celldata in U2000 B on scheduled basis. The corresponding task type is Inter-SystemNeighboring Cell Export. In the task interface, Import Inter-Rat ANR Data mustbe selected.

For details, see "Synchronizing Inter-System Neighboring Cell Data on a ScheduledBasis" in iManager U2000 MBB Network System Online Help.

– On U2000 A, enable cross-U2000 neighboring cell information query by selectingEnable cross-OSS neighboring cell optimization. Enter the file path of theneighboring cell information. The file path must be the same as that set in U2000 Bfor storing neighboring cell information, that is the value of Server Directory.

For details, see "Setting ANR Switches and Parameters" in SON Management in theU2000 product documentation.

NOTE

When performing cross-OSS neighbor cell information query, you are advised to use ftpuser.In this case, the neighboring cell information to be queried is saved in the relative file path ofthe peer U2000 server. For details about the relative file path and absolute file path, seeiManager U2000 MBB Network Management System Product Documentation.



l Network plan (negotiation required): parameter values planned by the operator andnegotiated with the EPC or peer transmission equipment


The following table describes the parameter that must be set to enable ANR with shared cells.

ParameterName


ANRUnderRANSharingAlgorithmSwitch

ENodeBAlgoSwitch.RanSharingAnrSwitch


Set the following options byreferring to the deploymentsuggestion of ANR with sharedcells:l NBSLTEPLMNRound-

Switch(NBSLTEPLMNRound-Switch)

l NBSLTERANSharingS-witch(NBSLTERANSharingS-witch)

l NBSUTRANRANSharingS-witch(NBSUTRANRANShar-ingSwitch)

l NBSGERANRANSharingS-witch(NBSGERANRANShar-ingSwitch)



134

ParameterName


IntraFrequencyRANSharingIndication

Cell.IntraFreqRanSharingInd


If a shared intra-frequencyneighboring E-UTRAN cellbroadcasts its PLMN list in an RRmanner or a shared intra-frequencyneighboring E-UTRAN cell doesnot broadcast its PLMN list in anRR manner, the recommended valueis BOOLEAN_TRUE(True).

InterFrequencyRANSharingIndication

EutranInterNFreq.InterFreqRanSharingInd


If a shared inter-frequencyneighboring E-UTRAN cellbroadcasts its PLMN list in an RRmanner or a shared inter-frequencyneighboring E-UTRAN cell doesnot broadcast its PLMN list in anRR manner, the recommended valueis BOOLEAN_TRUE(True).

UTRANFrequencyRANSharingIndication

UtranNFreq.UtranRanSharingInd


If a neighboring UTRAN cell isshared by operators, therecommended value isBOOLEAN_TRUE(True).

GERAN FreqGroupRANSharingIndication

GeranNfreqGroup.GeranRanSharingInd


If a neighboring GERAN cell isshared by operators, therecommended value isBOOLEAN_TRUE(True).





135

11.3.6 Activation







Table 11-1 Parameters for ANR with shared cells


ParameterGroup

Remarks

ENodeBAlgoSwitch

User-definedsheet.ENodeBAlgoSwitch isrecommended.

RanSharingAnrSwitch

Add the ENodeBAlgoSwitch sheet tothe summary data file.

CELL User-definedsheet. CELLisrecommended.

IntraFreqRanSharingInd

Add the CELL sheet to the summarydata file.

EUTRANINTERNFREQ

User-definedsheet.EUTRANINTERNFREQisrecommended.

InterFreqRanSharingInd

Add the EUTRANINTERNFREQsheet to the summary data file.

UTRANNFREQ

User-definedsheet.UTRANNFREQ isrecommended.

UtranRanSharingInd

Add the UTRANNFREQ sheet to thesummary data file.



136


ParameterGroup

Remarks

GERANNFREQGROUP

User-definedsheet.GERANNFREQGROUPisrecommended.

GeranRanSharingInd

Add the GERANNFREQGROUPsheet to the summary data file.








----End






137







----End

Using MML Commands

Activating ANR with Shared E-UTRAN Cells That Broadcast PLMN Lists in an RRManner

Run the MOD ENODEBALGOSWITCH command with theNBSLTEPLMNRoundSwitch(NBSLTEPLMNRoundSwitch) option of the ANR UnderRAN Sharing Algorithm Switch parameter selected.

Run the MOD CELL command with the Intra Frequency RAN Sharing Indicationparameter set to BOOLEAN_TRUE(True).

Run the MOD EUTRANINTERNFREQ command with the Inter Frequency RANSharing Indication parameter set to BOOLEAN_TRUE(True).

Activating ANR with Shared E-UTRAN Cells That Do Not Broadcast PLMN Lists in anRR Manner



138

Run the MOD ENODEBALGOSWITCH command with theNBSLTERANSharingSwitch(NBSLTERANSharingSwitch) option of the ANR UnderRAN Sharing Algorithm Switch parameter selected.

Run the MOD CELL command with the Intra Frequency RAN Sharing Indicationparameter set to BOOLEAN_TRUE(True).

Run the MOD EUTRANINTERNFREQ command with the Inter Frequency RANSharing Indication parameter set to BOOLEAN_TRUE(True).

Activating ANR with Shared UTRAN Cells

Run the MOD ENODEBALGOSWITCH command with theNBSUTRANRANSharingSwitch(NBSUTRANRANSharingSwitch) option of the ANRUnder RAN Sharing Algorithm Switch parameter selected.

Run the MOD UTRANNFREQ command with the UTRAN Frequency RAN SharingIndication parameter set to BOOLEAN_TRUE(True).

Activating ANR with Shared GERAN Cells

Run the MOD ENODEBALGOSWITCH command with theNBSGERANRANSharingSwitch(NBSGERANRANSharingSwitch) option of the ANRUnder RAN Sharing Algorithm Switch parameter selected.

Run the MOD GERANNFREQGROUP command with the GERAN Freq Group RANSharing Indication parameter set to BOOLEAN_TRUE(True).


Activating ANR with Shared E-UTRAN Cells That Broadcast PLMN Lists in an RRManner

MOD ENODEBALGOSWITCH: RanSharingAnrSwitch=NBSLTEPLMNRoundSwitch-1;MOD CELL: IntraFreqRanSharingInd=BOOLEAN_TRUE;MOD EUTRANINTERNFREQ: InterFreqRanSharingInd=BOOLEAN_TRUE;

Activating ANR with Shared E-UTRAN Cells That Do Not Broadcast PLMN Lists in anRR Manner

MOD ENODEBALGOSWITCH: RanSharingAnrSwitch=NBSLTEPLMNRoundSwitch-0&NBSLTERANSharingSwitch-1;MOD CELL: IntraFreqRanSharingInd=BOOLEAN_TRUE;MOD EUTRANINTERNFREQ: InterFreqRanSharingInd=BOOLEAN_TRUE;

Activating ANR with Shared UTRAN Cells

MOD ENODEBALGOSWITCH: RanSharingAnrSwitch=NBSUTRANRANSharingSwitch-1;MOD UTRANNFREQ: UtranRanSharingInd=BOOLEAN_TRUE;

Activating ANR with Shared GERAN Cells

MOD ENODEBALGOSWITCH: RanSharingAnrSwitch=NBSGERANRANSharingSwitch-1;MOD GERANNFREQGROUP: GeranRanSharingInd=BOOLEAN_TRUE;

11.3.7 Activation ObservationThe procedure for observing the activation of ANR with shared cells is similar to that of intra-RAT ANR. For details, see 9.3.7 Activation Observation. The difference is that ANR withshared cells automatically maintains the PLMN list of a shared neighboring cell. Observewhether this feature has been activated by running the following MML commands: LST



139

EUTRANEXTERNALCELLPLMN, LST UTRANEXTERNALCELLPLMN, and LSTGERANEXTERNALCELLPLMN.


11.3.9 Deactivation


Table 11-2 Parameters for ANR with shared cells


ParameterGroup

Setting Notes

ENodeBAlgoSwitch


RanSharingAnrSwitch

Clear the following optionsof this parameter:l NBSLTEPLMNRound-

Switchl NBSLTERANSharingS-

witchl NBSUTRANRANShar-

ingSwitchl NBSGERANRANShar-

ingSwitch

CELL User-defined sheet.CELL isrecommended.

IntraFreqRanSharingInd

BOOLEAN_FALSE

EUTRANINTERNFREQ

User-defined sheet.EUTRANINTERNFREQ isrecommended.


BOOLEAN_FALSE

UTRANNFREQ User-defined sheet.UTRANNFREQ isrecommended.

UtranRanSharingInd

BOOLEAN_FALSE

GERANNFREQGROUP

User-defined sheet.GERANNFREQGROUP is recommended.

GeranRanSharingInd

BOOLEAN_FALSE



140



Using MML Commands

Deactivating ANR with Shared E-UTRAN Cells That Broadcast PLMN Lists in an RRManner

Run the MOD ENODEBALGOSWITCH command with theNBSLTEPLMNRoundSwitch(NBSLTEPLMNRoundSwitch) option of the ANR UnderRAN Sharing Algorithm Switch parameter deselected.

Run the MOD CELL command with the Intra Frequency RAN Sharing Indicationparameter set to BOOLEAN_FALSE(False).

Run the MOD EUTRANINTERNFREQ command with the Inter Frequency RANSharing Indication parameter set to BOOLEAN_FALSE(False).

Deactivating ANR with Shared E-UTRAN Cells That Do Not Broadcast PLMN Lists inan RR Manner

Run the MOD ENODEBALGOSWITCH command with theNBSLTERANSharingSwitch(NBSLTERANSharingSwitch) option of the ANR UnderRAN Sharing Algorithm Switch parameter deselected.

Run the MOD CELL command with the Intra Frequency RAN Sharing Indicationparameter set to BOOLEAN_FALSE(False).

Run the MOD EUTRANINTERNFREQ command with the Inter Frequency RANSharing Indication parameter set to BOOLEAN_FALSE(False).

Deactivating ANR with Shared UTRAN Cells

Run the MOD ENODEBALGOSWITCH command with theNBSUTRANRANSharingSwitch(NBSUTRANRANSharingSwitch) option of the ANRUnder RAN Sharing Algorithm Switch parameter deselected.

Run the MOD UTRANNFREQ command with the UTRAN Frequency RAN SharingIndication parameter set to BOOLEAN_FALSE(False).

Deactivating ANR with Shared GERAN Cells

Run the MOD ENODEBALGOSWITCH command with theNBSGERANRANSharingSwitch(NBSGERANRANSharingSwitch) option of the ANRUnder RAN Sharing Algorithm Switch parameter deselected.

Run the MOD GERANNFREQGROUP command with the GERAN Freq Group RANSharing Indication parameter set to BOOLEAN_FALSE(False).


Deactivating ANR with Shared E-UTRAN Cells That Broadcast PLMN Lists in an RRManner

MOD ENODEBALGOSWITCH: RanSharingAnrSwitch=NBSLTEPLMNRoundSwitch-0;MOD CELL: IntraFreqRanSharingInd=BOOLEAN_FALSE;MOD EUTRANINTERNFREQ: InterFreqRanSharingInd=BOOLEAN_FALSE;



141

Deactivating ANR with Shared E-UTRAN Cells That Do Not Broadcast PLMN Lists inan RR Manner

MOD ENODEBALGOSWITCH: RanSharingAnrSwitch=NBSLTERANSharingSwitch-0;MOD CELL: IntraFreqRanSharingInd=BOOLEAN_FALSE;MOD EUTRANINTERNFREQ: InterFreqRanSharingInd=BOOLEAN_FALSE;

Deactivating ANR with Shared UTRAN Cells

MOD ENODEBALGOSWITCH: RanSharingAnrSwitch=NBSUTRANRANSharingSwitch-0;MOD UTRANNFREQ: UtranRanSharingInd=BOOLEAN_FALSE;

Deactivating ANR with Shared GERAN Cells

MOD ENODEBALGOSWITCH: RanSharingAnrSwitch=NBSGERANRANSharingSwitch-0;MOD GERANNFREQGROUP: GeranRanSharingInd=BOOLEAN_FALSE;

11.4 Performance MonitoringUsing ANR with shared cells decreases the probability that the configurations of neighboringcells are missing or incorrect, thereby increasing the handover success rate and decreasing theservice drop rate. To monitor the performance of ANR with shared cells, you can check theperformance counters related to handovers and service drops. In addition, you can check thecounters for intra- or inter-RAT ANR for reference.

11.5 Parameter OptimizationNone


Fault Description

When an E-UTRAN cell is shared by operators, a UE that subscribes to a secondary operatorexperiences a failure of an intra-RAT handover to the cell.

Fault Handling

To check whether this handover failure is caused by an incorrect neighbor relationshipconfiguration, perform the following steps:

Step 1 On the U2000 client, start a Uu interface tracing task for the source cell.

1. Choose Monitor > Signaling Trace > Signaling Trace Management.2. In the navigation tree on the left of the Signaling Trace Management tab page, double-

click Uu Interface Trace under LTE > Application Layer. Create and start a Uuinterface tracing task.

Step 2 In the tracing result, check whether the source eNodeB has delivered a handover command. Ahandover command was delivered if the RRC_CONN_RECFG message contains the IEmobilityControlInfo.l If the eNodeB has not delivered the handover command, go to Step 3.l If the eNodeB has delivered the handover command, contact Huawei technical support.



142

Step 3 Run the LST EUTRANEXTERNALCELL command to check whether the target cell hasbeen configured as an external cell on the source eNodeB. Run the LSTEUTRANINTRAFREQNCELL or LST EUTRANINTERFREQNCELL command tocheck whether the intra- or inter-frequency neighbor relationship between the source andtarget cells has been configured on the source cell. Run the LSTEUTRANEXTERNALCELLPLMN command to check whether the PLMN list has beenconfigured for the external cell.l If they have not been configured, go to Step 4.l If they have been configured, contact Huawei technical support.

Step 4 Check whether the source and target eNodeBs are managed by the same U2000.l If they are managed by the same U2000, go to Step 5.l If they are not managed by the same U2000, contact Huawei technical support.

Step 5 Check whether the switch for intra-RAT event-triggered ANR and the switch for ANR withshared cells have been set to on.l If the switches are off, set them to on.l If the switches are on, go to Step 6.

Step 6 Check whether the UE supports intra-RAT ANR.l If the UE supports intra-RAT ANR, contact Huawei technical support.l If the UE does not support intra-RAT ANR, no further action is required.

----End



143

12 Engineering Guidelines for NCL/NRT

Self-Management Based on X2 Messages

12.1 When to Use NCL/NRT Self-Management Based onX2 Messages

The following are deployment suggestions for the X2-based NCL/NRT entry addition andupdate function:

l Enable this function if an X2 interface is configured between the local and peer eNodeBsand operators do not use the CME to modify the eNodeB configurations that affectneighbor relationships. Examples of the configuration data are parameterseNodeBFunction.eNodeBId, Cell.CellId, Cell.LocalCellId, Cell.PhyCellId, andCell.DlEarfcn, as well as the parameters in the MOs CnOperator, CnOperatorTa, andCellOp.

l Disable this function if one of the following conditions is met:

– An X2 interface is configured between the local and peer eNodeBs, and operatorsuse the CME to modify the eNodeB configurations. If the function is enabled in thissituation, eNodeB configurations may be lost or abnormal because of configurationconflicts between the function and the CME.

– An X2 interface is configured between the local and peer eNodeBs, and there arecells that are served by the local eNodeB and are not geographically adjacent. Youare advised to disable this function to prevent the peer eNodeB from addingneighbor relationships with the remote cells to the NRTs.

– No X2 interface is configured between the local and peer eNodeBs.

The following are deployment suggestions for the X2-based NCL/NRT entry removalfunction:

l Enable this function if NCL/NRT update based on X2 messages has been enabled andthe GlobalProcSwitch.X2ServedCellType parameter is set toCONFIGURED_CELL(Configured Cell). Disable this function if one of the followingconditions is met:

l Disable this function if one of the following conditions is met:

eRANANR Management Feature Parameter Description

12 Engineering Guidelines for NCL/NRT Self-ManagementBased on X2 Messages


144

– Operators use the CME to modify eNodeB configurations. If the function is enabledin this situation, eNodeB configurations may be lost or abnormal because ofconfiguration conflicts between the function and the CME.

– The GlobalProcSwitch.X2ServedCellType parameter is set toACTIVE_CELL(Active Cell).

– No X2 interface is configured between the local and peer eNodeBs.


12.3 Deployment

12.3.1 ProcessNone

12.3.2 RequirementsX2 interface self-management has been enabled. For details about X2 interface self-management, see S1/X2 Self-Management Feature Parameter Description.





The following table describes the parameters that must be set in the GlobalProcSwitch MOfor NCL/NRT self-management based on X2 messages.

Parameter Name


UpdateeNBConfiguration ViaX2Switch

GlobalProcSwitch.X2BasedUptENodeBCfgSwitch


Set this parameter by referringto 12.1 When to UseNCL/NRT Self-ManagementBased on X2 Messages.




145

Parameter Name


DeleteNcellConfiguration ViaX2Switch

GlobalProcSwitch.X2BasedDelNcellCfgSwitch


It is recommended that thisparameter be set to ON(On) iftheGlobalProcSwitch.X2ServedCellType parameter is set toCONFIGURED_CELL(Configured Cell). TheGlobalProcSwitch.X2BasedDelNcellCfgSwitch parametertakes effect only whenGlobalProcSwitch.X2BasedUptENodeBCfgSwitch is set toON(On).



12.3.6 Activation

Using the CME to Perform Batch Configuration for Newly Deployed eNodeBsEnter the values of the parameters listed in Table 12-1 in a summary data file, which alsocontains other data for the new eNodeBs to be deployed. Then, import the summary data fileinto the Configuration Management Express (CME) for batch configuration.



l The managed objects (MOs) in Table 12-1 are contained in a scenario-specific summarydata file. In this situation, set the parameters in the MOs, and then verify and save thefile.





146

Table 12-1 Parameters for NCL/NRT self-management based on X2 messages


Parameter Group Remarks

ENodeBAlgoSwitch

User-definedsheet.ENodeBAlgoSwitch isrecommended.

X2BasedUptENodeBCfgS-witch,X2BasedDelNcellCfgSwitch

Add the ENodeBAlgoSwitchsheet to the summary datafile.








----End







147







----End

Using MML Commandsl Activating NCL/NRT Entry Addition and Update

Run the MOD GLOBALPROCSWITCH command with the Update eNBConfiguration Via X2 Switch parameter set to ON(On).

l Activating NCL/NRT Entry RemovalRun the MOD GLOBALPROCSWITCH command with both the Update eNBConfiguration Via X2 Switch and Delete Ncell Configuration Via X2 Switchparameters set to ON(On).

MML Command Examplesl Activating NCL/NRT Entry Addition and Update

MOD GLOBALPROCSWITCH: X2BasedUptENodeBCfgSwitch=ON;l Activating NCL/NRT Entry Removal

MOD GLOBALPROCSWITCH: X2BasedUptENodeBCfgSwitch=ON, X2BasedDelNcellCfgSwitch=ON;




148

12.3.7 Activation ObservationTo check whether NCL/NRT self-management based on X2 messages has been activated,perform the following steps:

Step 1 Log in to the U2000 client, and choose Monitor > Signaling Trace > Signaling TraceManagement.

Step 2 In the navigation tree on the left of the Signaling Trace Management tab page, double-clickX2 Interface Trace under LTE > Application Layer.

Step 3 Create and start an X2 interface tracing task.

Step 4 Check the tracing result.

If the local eNodeB sends an X2_SETUP_REQUEST message (as shown in Figure 12-2) orENB_CONFIGURATION_UPDATE message (as shown in Figure 12-3) that contains itsconfigurations, the peer eNodeB adds or updates the configuration based on the message. TheNCL/NRT entry addition and update function has been activated.

Figure 12-2 Example of X2_SETUP_REQUEST message

Figure 12-3 Example 1 of ENB_CONFIGURATION_UPDATE message




149

If the ENB_CONFIGURATION_UPDATE message (as shown in Figure 12-4) contains theIE Served Cell to Delete, the peer eNodeB removes the neighbor relationships with theremoved cells. The NCL/NRT entry removal function has been activated.

Figure 12-4 Example 2 of ENB_CONFIGURATION_UPDATE message

----End


12.3.9 Deactivation

Using the CME to Perform Batch Configuration

Batch reconfiguration using the CME is the recommended method to deactivate a feature oneNodeBs. This method reconfigures all data, except neighbor relationships, for multipleeNodeBs in a single procedure. The procedure for feature deactivation is similar to that forfeature activation described in Using the CME to Perform Batch Configuration forExisting eNodeBs. In the procedure, modify parameters according to Table 12-2.



ParameterGroup

Setting Notes

ENodeBAlgoSwitch User-definedsheet.ENodeBAlgoSwitch isrecommended.

X2BasedUptENodeBCfgSwitch,X2BasedDelNcellCfgSwitch

Set the parameters to OFF.






150

Using MML Commandsl Deactivating NCL/NRT Entry Addition and Update

Run the MOD GLOBALPROCSWITCH command with the Update eNBConfiguration Via X2 Switch parameter set to OFF(Off).

l Deactivating NCL/NRT Entry RemovalRun the MOD GLOBALPROCSWITCH command with the Delete NcellConfiguration Via X2 Switch parameter set to OFF(Off).

MML Command Examplesl Deactivating NCL/NRT Entry Addition and Update

MOD GLOBALPROCSWITCH: X2BasedUptENodeBCfgSwitch=OFF;

l Deactivating NCL/NRT Entry RemovalMOD GLOBALPROCSWITCH: X2BasedDelNcellCfgSwitch=OFF;

12.4 Performance MonitoringNCL/NRT self-management based on X2 messages decreases the probability of missing orincorrect neighbor relationship configurations. This increases the handover success rate anddecreases the service drop rate. To monitor the self-management performance, check thefollowing data:

l Performance countersCollect the performance counters listed in the following table. Then, use the followingformula to calculate the service drop rate:Service Drop Rate = L.E-RAB.AbnormRel/(L.E-RAB.NormRel + L.E-RAB.AbnormRel) x 100%


1526726995 L.HHO.IntraeNB.IntraFreq.PrepAttOut

Number of intra-eNodeBintra-frequency outgoinghandover attempts in a cell

1526726996 L.HHO.IntraeNB.IntraFreq.ExecAttOut

Number of intra-eNodeBintra-frequency outgoinghandover executions in acell

1526726997 L.HHO.IntraeNB.IntraFreq.ExecSuccOut

Number of successful intra-eNodeB intra-frequencyoutgoing handovers in acell

1526727001 L.HHO.IntereNB.IntraFreq.PrepAttOut

Number of inter-eNodeBintra-frequency outgoinghandover attempts in a cell

1526727002 L.HHO.IntereNB.IntraFreq.ExecAttOut

Number of inter-eNodeBintra-frequency outgoinghandover executions in acell




151


1526727003 L.HHO.IntereNB.IntraFreq.ExecSuccOut

Number of successful inter-eNodeB intra-frequencyoutgoing handovers in acell

1526726998 L.HHO.IntraeNB.InterFreq.PrepAttOut

Number of intra-eNodeBinter-frequency outgoinghandover attempts in a cell

1526726999 L.HHO.IntraeNB.InterFreq.ExecAttOut

Number of intra-eNodeBinter-frequency outgoinghandover executions in acell

1526727000 L.HHO.IntraeNB.InterFreq.ExecSuccOut

Number of successful intra-eNodeB inter-frequencyoutgoing handovers in acell

1526727004 L.HHO.IntereNB.InterFreq.PrepAttOut

Number of inter-eNodeBinter-frequency outgoinghandover attempts in a cell

1526727005 L.HHO.IntereNB.InterFreq.ExecAttOut

Number of inter-eNodeBinter-frequency outgoinghandover executions in acell

1526727006 L.HHO.IntereNB.InterFreq.ExecSuccOut

Number of successful inter-eNodeB inter-frequencyoutgoing handovers in acell

1526727546 L.E-RAB.AbnormRel Total number of abnormalreleases of activated E-RABs initiated by theeNodeB in a cell

1526727547 L.E-RAB.NormRel Total number of normal E-RAB releases initiated bythe eNodeB in a cell

l SON logs

Export SON logs. SON logs record the operations of adding, updating, and removingexternal cells and neighbor relationships based on X2 messages. The logs containinformation about both the serving and neighboring cells.




152

12.5 Parameter OptimizationThe parameters that need to be modified after inter-RAT ANR is activated are similar to thoseto be modified after intra-RAT ANR is activated. The following table describes only theparameters that are specific to inter-RAT ANR.



Update eNBConfiguration ViaX2 Policy

GlobalProcSwitch.X2BasedUptENodeBPolicy

You are advised to set theFreqAddCtrl(FreqAddCtrl) option basedon the operator's frequency configurationpolicy. If an eNodeB adds neighboringfrequencies based on X2 messages and thisoption is selected, the eNodeB filters thefrequencies based on the PLMN information.Otherwise, the eNodeB does not filter thefrequencies based on the PLMN information.


Fault Description

NCL/NRT entries cannot be added, updated, or removed based on X2 messages.

Fault Handling

To handle the fault, perform the following steps:

Step 1 Run the LST GLOBALPROCSWITCH command to check the switch settings.

If NCL/NRT entries cannot be added or updated, check the setting of the Update eNBConfiguration Via X2 Switch parameter.

If NCL/NRT entries cannot be removed, check the settings of the Update eNBConfiguration Via X2 Switch and Delete Ncell Configuration Via X2 Switch parameters.

l If a value is Off, set the parameter to ON(On).l If the values are On, go to Step 2.

Step 2 On the U2000 client, choose Monitor > Signaling Trace > Signaling Trace Management.In the navigation tree on the left of the Signaling Trace Management tab page, double-clickX2 Interface Trace under LTE > Application Layer. Create and start an X2 interfacetracing task for the source cell.

Step 3 Modify or remove the configuration of a cell under an eNodeB. Check the tracing result todetermine whether the eNodeB has sent an ENB CONFIGURATION UPDATE message toinform the peer eNodeB of the change.l If the eNodeB has sent the message, contact Huawei technical support.




153

l If the eNodeB did not send the message, go to Step 4.

Step 4 Run the DSP X2INTERFACE command to check whether the X2 interface is configured andworks normally.l If the X2 interface is normal, contact Huawei technical support.l If the X2 interface is abnormal, see S1/X2 Self-Management Feature Parameter

Description for details about how to handle the fault.

----End




154

13 Engineering Guidelines for

Neighboring Cell Classification

13.1 When to Use Neighboring Cell ClassificationUse neighboring cell classification when intra-RAT event-triggered ANR is enabled. Ifneighboring cell classification is enabled, you are advised to enable the function of automaticoptimization of neighbor relationships with cells of abnormal success rates of intra-RAThandovers.


13.3 Deployment

13.3.1 ProcessNone

13.3.2 RequirementsOperators have purchased and activated the license listed in Table 13-1.


13 Engineering Guidelines for Neighboring CellClassification


155

Table 13-1 License information for neighbor cell classification


LicenseControlItem

NE Sales Unit

LOFD-081225

Neighbor CellClassificationManagement

LT1S00NCCM00

NeighborCellClassificationManagement (PerCell)

Cell Per cell





The following table describes the parameter that must be set in the CellAlgoSwitch MO toactivate neighboring cell classification.

Parameter Name

Parameter ID


NeighborCellClassification MgtSwitch

CellAlgoSwitch.NCellClassMgtSw


Select or deselect the following options byreferring to 13.1 When to Use NeighboringCell Classification:l INTRA_RAT_NCELL_CLASS_SW(INTR

A_RAT_NCELL_CLASS_SW)l NCELL_CLASS_HO_POLICY_SW(NCEL

L_CLASS_HO_POLICY_SW)l NCELL_CLASS_PCI_CONFLICT_SW(NC

ELL_CLASS_PCI_CONFLICT_SW)

The following table describes the parameters that must be set in the ENodeBAlgoSwitch MOto enable automatic optimization of neighbor relationships with cells of abnormal successrates of intra-RAT handovers and set the ANR.NoHoSetMode parameter toPCI_CHECK(PCI_CHECK).




156

Parameter Name

Parameter ID


ANRalgorithmswitch



Select the IntraRatNoHoSetAnrS-witch(IntraRatNoHoSetAnrSwitch) option.

NoHandover SetMode

ANR.NoHoSetMode


Set this parameter toPCI_CHECK(PCI_CHECK).



13.3.6 Activation

Using the CME to Perform Batch Configuration for Newly Deployed eNodeBsEnter the values of the parameters listed in Table 13-2 in a summary data file, which alsocontains other data for the new eNodeBs to be deployed.








157

Table 13-2 Parameters for neighboring cell classification

MO Sheet intheSummary DataFile


CellAlgoSwitch

User-definedsheet.CellAlgoSwitch isrecommended.

NCellClassMgtSw Add the CellAlgoSwitchsheet to the summary datafile.

NCellClassMgt

User-definedsheet.NCellClassMgt isrecommended.

StatPeriodForNcellClass,HoAttemptThd

Add the NCellClassMgtsheet to the summary datafile.

NoHoSetMode

User-definedsheet.NoHoSetMode isrecommended.

NoHoSetMode Add the ANR sheet to thesummary data file.









158



----End












159


----End

Using MML Commands

Activating neighboring cell classification

Step 1 Run the MOD CELLALGOSWITCH command with theINTRA_RAT_NCELL_CLASS_SW(INTRA_RAT_NCELL_CLASS_SW) of theNeighbor Cell Classification Mgt Switch parameter selected.

Step 2 (Optional) In addition,l To enable "target cell selection based on neighboring cell classification", select the

NCELL_CLASS_HO_POLICY_SW(NCELL_CLASS_HO_POLICY_SW) option.l To enable "PCI confusion detection based on neighboring cell classification", select the

NCELL_CLASS_PCI_CONFLICT_SW(NCELL_CLASS_PCI_CONFLICT_SW)option.

Step 3 Run the MOD ENODEBALGOSWITCH command with theIntraRatNoHoSetAnrSwitch(IntraRatNoHoSetAnrSwitch) option of the ANR algorithmswitch parameter selected.

Step 4 Run the MOD ANR command with the PCI_CHECK(PCI_CHECK) option of the NoHandover Set Mode parameter selected.

----End


Activating neighboring cell classification

MOD CELLALGOSWITCH: NCELLCLASSMGTSW=INTRA_RAT_NCELL_CLASS_SW-1&NCELL_CLASS_HO_POLICY_SW-1&NCELL_CLASS_PCI_CONFLICT_SW-1;MOD ENODEBALGOSWITCH: AnrSwitch=IntraRatEventAnrSwitch-1&IntraRatNoHoSetAnrSwitch-1;MOD ANR: NoHoSetMode=PCI_CHECK;

13.3.7 Activation Observation

SON Logs on the U2000 Client

To use SON logs to verify whether neighboring cell management has been activated, performthe following steps:

Step 1 On the U2000 client, choose SON > SON Log.

Step 2 On the Query SON Log tab page, click LTE Neighbor cell Classification ManagementLog in the Log Category drop-down list in the upper left corner.

Step 3 Click Set Neighbor Cell Classified Identity in the Custom list under Event Name. Thenclick Query to query SON logs of neighboring cell classification.

----End




160

MML Commands

Run the LST EUTRANINTRAFREQNCELL or LST EUTRANINTERFREQNCELL tocheck the Neighbor Cell Classification Label parameter value. If the parameter value for aneighboring cell is FORMAL(FORMAL) or EXTENDED(EXTENDED), this function hasbeen activated.


13.3.9 Deactivation





ParameterGroup

Setting Notes

CellAlgoSwitch User-definedsheet.CellAlgoSwitch isrecommended.

Neighbor CellClassificationMgt switch

Deselect the following optionsof this parameter:l INTRA_RAT_NCELL_CL

ASS_SWl NCELL_CLASS_HO_PO

LICY_SWl NCELL_CLASS_PCI_CO

NFLICT_SW



Using MML Commands

Deactivating neighboring cell classification

Run the MOD CELLALGOSWITCH command with theINTRA_RAT_NCELL_CLASS_SW(INTRA_RAT_NCELL_CLASS_SW),NCELL_CLASS_HO_POLICY_SW(NCELL_CLASS_HO_POLICY_SW), andNCELL_CLASS_PCI_CONFLICT_SW(NCELL_CLASS_PCI_CONFLICT_SW)options of the Neighbor Cell Classification Mgt Switch parameter deselected.




161

MML Command ExamplesDeactivating neighboring cell classification

MOD CELLALGOSWITCH: NCELLCLASSMGTSW=INTRA_RAT_NCELL_CLASS_SW-0&NCELL_CLASS_HO_POLICY_SW-0&NCELL_CLASS_PCI_CONFLICT_SW-0;

13.4 Performance MonitoringFor details, see 9.4 Performance Monitoring.

13.5 Parameter OptimizationThe following parameters may need to be modified after neighboring cell classification isactivated.



Statistic Period ForNeighbor CellClassification

NCellClassMgt.StatPeriodForNCellClass

A larger value of this parameter results in higherstability of the neighboring cell classificationlabel status but lower timeliness of the reflectionof network performance.A smaller value of this parameter results in lowerstability of both the neighboring cellclassification label status and the neighboring cellclassification algorithm.

Handover AttemptThreshold

NCellClassMgt.HoAttemptThd

A smaller value of this parameter results in ahigher probability that the attributes ofneighboring cells are labeled as formal, a lowerprobability of detecting potential neighboringcells with conflicted PCIs, and a higherprobability that inappropriate neighboring cellsare selected as target cells in PCI conflictscenarios.A larger value of this parameter results in a lowerprobability that the attributes of neighboring cellsare labeled as formal, a larger number ofhandovers that are performed based on ECGIreading results, a greater impact on UEthroughput due to ECGI reading, and a higherprobability of detecting potential neighboringcells with conflicted PCIs.




162


Fault DescriptionThe result of the LST EUTRANINTRAFREQNCELL or LSTEUTRANINTERFREQNCELL command shows configured neighbor relationships.However, the result of the DSP EUTRANINTRAFREQNCELL or DSPEUTRANINTERFREQNCELL command does not show any configured neighborrelationship, respectively.

Fault HandlingPerform the following steps for troubleshooting:

Step 1 Run the LST EUTRANINTRAFREQNCELL or LST EUTRANINTERFREQNCELL tocheck the Neighbor Cell Classification Label parameter value.

Step 2 If the Neighbor Cell Classification Label parameter value for a neighboring cell in the resultis EXTENDED(EXTENDED), then you must set the Neighbor Cell Classification Flagparameter to EXTENDED(EXTENDED) or ALL(ALL) when running the DSPEUTRANINTRAFREQNCELL command to query the information of the neighboring cell.If the Neighbor Cell Classification Label parameter value for a neighboring cell in the resultis FORMAL(FORMAL), then you must set the Neighbor Cell Classification Flagparameter to FORMAL(FORMAL) or ALL(ALL) when running the DSPEUTRANINTRAFREQNCELL command to query the information of the neighboring cell.

Run the DSP EUTRANINTRAFREQNCELL or DSP EUTRANINTERFREQNCELLcommand, the information of neighboring cells for which the Neighbor Cell ClassificationLabel parameter is set to FORMAL(FORMAL) is displayed.

----End




163

14 Engineering Guidelines for PLMN ID

Management

14.1 When to Use PLMN ID ManagementUse PLMN ID Management in scenarios where neighboring cell are near the borders ofPLMNs and scenarios where UEs report invalid PLMN IDs. UEs detect and reportneighboring cells with invalid PLMNs. The PLMN ID management function detectsneighboring cells with abnormal PLMNs and implies differentiated management on PLMNs.

14.2 Required InformationPLMN information of inter-PLMN adjacent cells near the borders of PLMNs. Such adjacentcells operate on the same frequencies as the local PLMN, and no handovers are performedbetween the local cell and the adjacent cells.

Invalid PLMN information reported by abnormal UEs.

14.3 Deployment

14.3.1 ProcessNone

14.3.2 RequirementsNone



eRANANR Management Feature Parameter Description 14 Engineering Guidelines for PLMN ID Management


164



The following table describes the parameters that must be set in an NCellPlmnList MO toadd a listed PLMN.

Parameter Name

Parameter ID


MobileCountryCode

NCellPlmnList.Mcc


This parameter specifies the MCC of a PLMN.

MobileNetworkCode

NCellPlmnList.Mnc


This parameter specifies the MNC of a PLMN.

Rat Type NCellPlmnList.RatType


This parameter specifies the RAT of a PLMN.

Plmn ListType

NCellPlmnList.PlmnListType


For invalid PLMNs reported by UEs, the valueBLACK_LIST(BLACK_LIST) isrecommended.For PLMNs near the local PLMN, the valueGREY_LIST(GREY_LIST) is recommended.



14.3.6 Activation








165


Table 14-1 Parameters for PLMN ID management



NCellPlmnList

User-definedsheet.NCellPlmnList isrecommended.

Mcc, Mnc, RatType,lmnListType

Add the NCellPlmnListsheet to the summary datafile.








----End



166










----End

Using MML Commands

Adding a listed PLMN

Run the ADD NCELLPLMNLIST command to add a listed PLMN.


Adding a listed PLMN



167

ADD NCELLPLMNLIST: Mcc=xxx, Mnc=xx, RatType=EUTRAN, PlmnListType=BLACK_LIST;ADD NCELLPLMNLIST: Mcc=xxx, Mnc=xx, RatType=EUTRAN, PlmnListType=GREY_LIST;

14.3.7 Activation ObservationTo use MML commands to verify whether PLMN ID management has been activated,perform the following steps:

Step 1 Run the LST EUTRANINTRAFREQNCELL or LST EUTRANINTERFREQNCELLcommand to check whether ANR adds neighbor relationships with cells of the relativePLMNs to the NRTs. If the Plmn List Type value set to BLACK_LIST(BLACK_LIST) fora PLMN, ANR does not add neighbor relationships with cells of the PLMN to NRTs.

Step 2 Run the DSP EUTRANINTRAFREQNCELL, DSP EUTRANINTERFREQNCELL,DSP UTRANNCELL, or DSP GERANNCELL to check the value of the Neighbor CellPlmn Label parameter. If the Plmn List Type value set to GREY_LIST(GREY_LIST) orWHITE_LIST(WHITE_LIST) for a PLMN, ANR adds neighbor relationships with cells ofthe PLMN to NRTs and specifies the PLMN type of the neighboring cell by setting theNeighbor Cell Plmn Label parameter.

l If the parameter value is WHITE(WHITE), the PLMN is valid.

l If the parameter is BLACK(BLACK) or GREY(GREY), the PLMN is invalid.

----End


14.3.9 Deactivation



Table 14-2 Parameters for PLMN ID management


ParameterGroup

Setting Notes

NCellPlmnList User-definedsheet.NCellPlmnListisrecommended.

MobileCountry Code,MobileNetworkCode, RatType, PlmnList Type

Remove the listed PLMNs.



168

Using the CME to Perform Single ConfigurationOn the CME, set parameters according to Table 14-2. For detailed instructions, see Using theCME to Perform Single Configuration described for feature activation.

Using MML CommandsRemoving a listed PLMN

Run the RMV NCELLPLMNLIST command to remove a listed PLMN.

MML Command ExamplesRemoving a listed PLMN

RMV NCELLPLMNLIST: Mcc=xxx, Mnc=xx, RatType=xx;

14.4 Performance MonitoringFor details, see 9.4 Performance Monitoring.

14.5 Parameter OptimizationNone


Fault DescriptionThere is a neighbor relationship with a cell of an invalid PLMN in an intra-RAT NRT, causinghandover failures.

Fault HandlingPerform the following steps for troubleshooting:

Step 1 Check the SON logs to verify whether such a neighbor relationship is added by ANR. If yes,UEs report invalid PLMN.

Step 2 Run the MO NCELLPLMNLIST command with the Plmn List Type parameter set toBLACK_LIST(BLACK_LIST) for the PLMN.

Step 3 Manually remove such a neighbor relationship from the NRT or use the ANR function toremove it.

----End



169

15 Parameters

Table 15-1 Parameters

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

GlobalProcSwitch

X2BasedUptENodeBPolicy

MODGLOBALPROCSWITCHLSTGLOBALPROCSWITCH

None None Meaning:Indicates whether the eNodeB automatically updatesthe neighboring cell configuration data based on themessages received over the X2 interface. Themessages include X2 SETUP REQUEST, X2 SETUPRESPONSE, and ENB CONFIGURATION UPDATE.The related switch is described as follows:

Update eNB Configuration Via X2 Policy: Indicateswhether the eNodeB adds neighboring E-UTRANfrequencies based on messages received over the X2interface. If this switch is on, the eNodeB directlyadds frequencies. If this switch is off, the eNodeBdoes not add any frequencies if the PLMN in thetelecom operator information and the PLMN of theserving cell do not match.GUI Value Range: FreqAddCtrl(FreqAddCtrl)Unit: NoneActual Value Range: FreqAddCtrlDefault Value: FreqAddCtrl:On

eRANANR Management Feature Parameter Description 15 Parameters


170

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

ANR NcellDelPunishPeriod

MODANRLSTANR

LOFD-002001 /TDLOFD-002001LOFD-002002 /TDLOFD-002002

AutomaticNeighbourRelation(ANR)Inter-RATANR

Meaning: Indicates the penalty statistics period duringwhich a deleted neighbor relationship with an E-UTRAN or UTRAN cell can be added to theneighboring relation table (NRT) again if the numberof times neighboring E-UTRAN or UTRAN celladdition is triggered is greater than or equal to thevalue of the EutranNcellDelPunNum orUtranNcellDelPunNum parameter.GUI Value Range: 1~50400Unit: minActual Value Range: 1~50400Default Value: 10080

ANR EutranNcellDelPunNum

MODANRLSTANR

LOFD-002001 /TDLOFD-002001

AutomaticNeighbourRelation(ANR)

Meaning: Indicates the number of times penaltystatistics about neighboring E-UTRAN cell deletionare collected. When a neighbor relationship with an E-UTRAN cell is deleted, it can be added to the NRTagain if the number of times neighboring E-UTRANcell addition is triggered is greater than or equal to thevalue of this parameter.GUI Value Range: 1~10000Unit: NoneActual Value Range: 1~10000Default Value: 1

ANR UtranNcellDelPunNum

MODANRLSTANR

LOFD-002002 /TDLOFD-002002

Inter-RATANR

Meaning: Indicates the number of times penaltystatistics about neighboring UTRAN cell deletion arecollected. When a neighbor relationship with aUTRAN cell is deleted, it can be added to the NRTagain if the number of times neighboring UTRAN celladdition is triggered is greater than the value of thisparameter.GUI Value Range: 1~10000Unit: NoneActual Value Range: 1~10000Default Value: 1



171

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

ANR OptModeStrategy

MODANRLSTANR



Meaning:Indicates whether to report neighbor relationshipswith cells in different RATs when the OptModeparameter in the ANR MO is set toCONTROLLED(CONTROLLED). This parameterincludes the following options:

EutranCtrlOptMode: Indicates whether to reportneighbor relationships with E-UTRAN cells. If thisoption is selected, the eNodeB reports neighborrelationships with E-UTRAN cells to the U2000, andthe neighbor relationship optimization is subject tomanual confirmation on the U2000. If this option isdeselected, the eNodeB automatically processes theneighbor relationships with E-UTRAN cells.

UtranCtrlOptMode: Indicates whether to reportneighbor relationships with UTRAN cells. If thisoption is selected, the eNodeB reports neighborrelationships with UTRAN cells to the U2000, and theneighbor relationship optimization is subject tomanual confirmation on the U2000. If this option isdeselected, the eNodeB automatically processes theneighbor relationships with UTRAN cells.

GeranCtrlOptMode: Indicates whether to reportneighbor relationships with GERAN cells. If thisoption is selected, the eNodeB reports neighborrelationships with GERAN cells to the U2000, and theneighbor relationship optimization is subject tomanual confirmation on the U2000. If this option isdeselected, the eNodeB automatically processes theneighbor relationships with GERAN cells.GUI Value Range:EutranCtrlOptMode(EutranCtrlOptMode),UtranCtrlOptMode(UtranCtrlOptMode),GeranCtrlOptMode(GeranCtrlOptMode)Unit: NoneActual Value Range: EutranCtrlOptMode,UtranCtrlOptMode, GeranCtrlOptModeDefault Value: EutranCtrlOptMode:On,UtranCtrlOptMode:On, GeranCtrlOptMode:On



172

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

ENodeBAlgoSwitch

HoSignalingOptSwitch

MODENODEBALGOSWITCHLSTENODEBALGOSWITCH

LBFD-00201802/TDLBFD-00201802LOFD-001019 /TDLOFD-001019LOFD-001020 /TDLOFD-001020

Coverage BasedInter-frequencyHandoverPS Inter-RATMobilitybetweenE-UTRANandUTRANPS Inter-RATMobilitybetweenE-UTRANandGERAN

Meaning: Indicates whether to enable handoversignaling optimization.ReduceInvalidA1A2RptSigSwitch: Indicates whetherto optimize the sequence in delivering A1/A2measurement configurations during coverage- orfrequency-priority-based handovers. If this switch ison: (1) In coverage-based handovers, the eNodeBdelivers A2 measurement configurations to UEs first,and then delivers A1 measurement configurations toUEs after receiving event A2 reports, reducingsignaling overheads in reporting unnecessary eventA1. (2) In frequency-priority-based handovers, theeNodeB delivers A1 measurement configurations toUEs first, and then delivers A2 measurementconfigurations to UEs after receiving event A1 report,reducing signaling overheads in reporting unnecessaryevent A2. MultiQciHoExecOptSwitch: Indicateswhether the handover decision is triggered based onthe admission result of all QCIs in SPID-basedhandovers to HPLMN and frequency-priority-basedhandovers. If this switch is on, the handover decisionis triggered only when all QCIs are successfullyadmitted. If this switch is off, the handover decision istriggered when any of the QCIs is successfullyadmitted. ReduceInvalidFreqPriHoSwitch: Indicateswhether to avoid repeated switches between thefrequency-priority-based intra-eNodeB handoveralgorithm and the load-based intra-eNodeB handoveralgorithm. If this switch is on, the eNodeB evaluateswhether to perform a frequency-priority-based intra-eNodeB handover based on the settings ofInterFreqMlbSwitch of the MlbAlgoSwitch parameterand the load status on the target cell. If the target cellis heavily loaded, the eNodeB does not trigger thehandover. If this switch is off, the eNodeB evaluateswhether to perform a frequency-priority-based intra-eNodeB handover without checking the settings ofInterFreqMlbSwitch of the MlbAlgoSwitch parameteron the target cell. AddA2MeasIfQciAdjSwitch:Indicates whether an eNodeB delivers inter-frequencyor inter-RAT A2-related measurement configuration tothe UE when the QCI of services running on the UEchanges in a coverage-based handover. If this switchis on, the eNodeB performs the following each timethe QCI is changed: (1) Updates the deliveredhandover-related parameters; (2) Determines whetherinter-frequency or inter-RAT measurementconfigurations need to be delivered; (3) Delivers the



173

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

configurations if they are required and have not beendelivered before, or updates the configurations if theyhave been delivered and the current event A2thresholds for inter-frequency or inter-RATmeasurements are less than or equal to the event A2threshold for blind handling. If this switch is off, theeNodeB only determines whether delivered handover-related parameters need to be updated each time theQCI is changed. InterFreqHoA2OptSwitch: Indicateswhether to deliver A2-related measurementconfigurations to UEs that do not support inter-frequency measurements. A2-related measurementconfigurations are not delivered to such UEs whenthis switch is on. This switch is off by default.McUtranNcellNumOptSwtich: Indicates themaximum number of neighboring cells contained inthe measurement configuration delivered to a UE formeasurements when ANR with UTRAN is enabled. Ifthis switch is off, the maximum number is specifiedaccording to 3GPP TS36.331 earlier than V10.12.0and is equal to the minCellperMeasObjectRATparameter value. If this switch is on, the maximumnumber is specified according to 3GPP TS36.331V10.12.0 and later versions and is equal to theminCellperMeasObjectRAT parameter value minus 1.For details about the minCellperMeasObjectRATparameter, see 3GPP TS 36.331.GUI Value Range:ReduceInvalidA1A2RptSigSwitch(ReduceInvalidA1A2RptSigSwitch), MultiQciHoExecOptS-witch(MultiQciHoExecOptSwitch),ReduceInvalidFreqPriHoSwitch(ReduceInvalidFreq-PriHoSwitch),AddA2MeasIfQciAdjSwitch(AddA2MeasIfQciAdjSwitch),InterFreqHoA2OptSwitch(InterFreqHoA2OptSwitch),McUtranNcellNumOptSw-tich(McUtranNcellNumOptSwtich)Unit: NoneActual Value Range:ReduceInvalidA1A2RptSigSwitch,MultiQciHoExecOptSwitch, ReduceInvalidFreqPri-HoSwitch, AddA2MeasIfQciAdjSwitch,InterFreqHoA2OptSwitch, McUtranNcellNumOptSw-tichDefault Value: ReduceInvalidA1A2RptSigSwitch:Off,MultiQciHoExecOptSwitch:Off, ReduceInvalidFreq-



174

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

PriHoSwitch:Off, AddA2MeasIfQciAdjSwitch:Off,InterFreqHoA2OptSwitch:Off,McUtranNcellNumOptSwtich:Off



175

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

GlobalProcSwitch

ProtocolMsgOptSwitch


LOFD-001023TDLOFD-001023

SRVCCHandover toGERANSRVCCHandover toGERAN

Meaning:Indicates whether to optimize protocol messages sentby the eNodeB. This parameter includes the followingoptions:

RrcSetupOptSwitch: If this option is selected, theoptimization of RRCConnectionSetup messages isenabled. In this case, IEs with protocol-defined defaultvalues are no longer included in theRRCConnectionSetup message. For details about theprotocol-defined default settings, see 3GPP TS36.331.

IucsRrcRecfgMcCombSwitch: If this option isselected, the eNodeB includes the radio resourceconfiguration and measurement configuration for aUE in one RRCConnectionReconfiguration messageduring initial access.

RcrpRrcRecfgMcCombSwitch: If this option isselected, the eNodeB includes the radio resourceconfiguration and measurement configuration for aUE in one RRCConnectionReconfiguration messageduring RRC connection reestablishment. The optionwill not take effect on the interaction of RRCconnection reestablishment and other signalingprocedures.

RrcRecfgMcOptSwitch: If this option is selected, thecell measurement configurations with the CIO of 0(indicated by cellIndividualOffset) are no longerincluded in the measurement configurations deliveredto UEs.

IdleCsfbRedirectOptSwitch: If this option is selectedand the preferred CSFB policy for UEs in idle mode isredirection, the eNodeB no longer activates securitymode or performs RRC connection reconfiguration,but sends a redirection message.

UlNasBufferSwitch: If this option is selected, theeNodeB buffers uplink NAS messages sent by the UEbefore the UE-associated logical S1 connection isavailable and sends these messages after the UE-associated logical S1 connection is available. If thisoption is deselected, the eNodeB releases this UE afterthe procedures finish.

IratMeasCfgTransSwitch: If this option is selected, theHandover Required message that the eNodeB sends to



176

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

a BSC contains the IE IRAT MeasurementConfiguration.

GeranAnrMcOptSwitch: This option controls whethermeasurement configuration optimization takes effectwhen ANR with GERAN is enabled. If this option isdeselected, the optimization does not take effect. Thatis, when an eNodeB delivers measurementconfiguration to UEs to perform CGI reading for ANRwith GERAN, the carrierFreqs IE can contain multipleGERAN frequencies. If this option is selected, theoptimization takes effect, and the carrierFreqs IEcontains only one GERAN frequency.

InactDiscardSwitch: This option controls whether toterminate the ongoing signaling flow when the UEinactivity timer expires. If this option is deselected,the ongoing flow is terminated and the eNodeBdirectly releases the UE. If this option is selected, theongoing flow is not terminated and the timer isrestarted.GUI Value Range: RrcSetupOptSwitch,IucsRrcRecfgMcCombSwitch,RcrpRrcRecfgMcCombSwitch,RrcRecfgMcOptSwitch, IdleCsfbRedirectOptSwitch,UlNasBufferSwitch, IratMeasCfgTransSwitch,GeranAnrMcOptSwitch, InactDiscardSwitchUnit: NoneActual Value Range: RrcSetupOptSwitch,IucsRrcRecfgMcCombSwitch,RcrpRrcRecfgMcCombSwitch,RrcRecfgMcOptSwitch, IdleCsfbRedirectOptSwitch,UlNasBufferSwitch, IratMeasCfgTransSwitch,GeranAnrMcOptSwitch, InactDiscardSwitchDefault Value: RrcSetupOptSwitch:Off,IucsRrcRecfgMcCombSwitch:Off,RcrpRrcRecfgMcCombSwitch:Off,RrcRecfgMcOptSwitch:Off, IdleCsfbRedirectOptS-witch:Off, UlNasBufferSwitch:Off,IratMeasCfgTransSwitch:Off,GeranAnrMcOptSwitch:Off, InactDiscardSwitch:Off



177

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

ANR NoHoSetMode

MODANRLSTANR

LOFD-002001 /TDLOFD-002001


Meaning: Indicates whether the eNodeB directly setsthe No handover indicator parameter toFORBID_HO_ENUM for an intra-RAT neighboringcell if the neighboring cell meets the requirements onthe number of handover attempts from the local cell tothe neighboring cell and the handover success ratewithin a specified measurement period. When thisparameter is set to NO_CHECK, the eNodeB directlysets the No handover indicator parameter toFORBID_HO_ENUM for this neighboring cell. Whenthis parameter is set to PCI_CHECK, the eNodeB firstinstructs the UE to read the CGI of the neighboringcell with the aim to detect unknown neighboring cellswith the same PCI and then determines whether to setthe No handover indicator parameter toFORBID_HO_ENUM for this neighboring cell.GUI Value Range: NO_CHECK(NO_CHECK),PCI_CHECK(PCI_CHECK)Unit: NoneActual Value Range: NO_CHECK, PCI_CHECKDefault Value: NO_CHECK(NO_CHECK)



178

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

ANR EventAnrWithVoipMode

MODANRLSTANR

LOFD-002002/TDLOFD-002002

Inter-RATANR

Meaning:Indicates whether the eNodeB selects UEs that areperforming VoLTE services to perform ANR-relatedmeasurements. This parameter includes the followingoptions:

UTRAN_EVENT_ANR_WITH_VOIP_MODE: AneNodeB can select UEs with bearers with a QCI of 1to perform measurements for event-triggered ANRwith UTRAN only if this option is selected.

GERAN_EVENT_ANR_WITH_VOIP_MODE: AneNodeB can select UEs with bearers with a QCI of 1to perform measurements for event-triggered ANRwith GERAN only if this option is selected.

CDMA_EVENT_ANR_WITH_VOIP_MODE: AneNodeB can select UEs with bearers with a QCI of 1to perform measurements for event-triggered ANRwith CDMA2000 only if this option is selected.GUI Value Range:UTRAN_EVENT_ANR_WITH_VOIP_MODE,GERAN_EVENT_ANR_WITH_VOIP_MODE,CDMA_EVENT_ANR_WITH_VOIP_MODEUnit: NoneActual Value Range:UTRAN_EVENT_ANR_WITH_VOIP_MODE,GERAN_EVENT_ANR_WITH_VOIP_MODE,CDMA_EVENT_ANR_WITH_VOIP_MODEDefault Value:UTRAN_EVENT_ANR_WITH_VOIP_MODE:On,GERAN_EVENT_ANR_WITH_VOIP_MODE:On,CDMA_EVENT_ANR_WITH_VOIP_MODE:On

ANR UtranEventAnrCgiTimer

MODANRLSTANR


Inter-RATANR

Meaning: Indicates the length of the timer of CGIreading for event-triggered ANR with UTRAN.GUI Value Range: 2~16Unit: 0.5sActual Value Range: 1~8Default Value: 4



179

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

ANR GeranEventAnrCgiTimer

MODANRLSTANR


Inter-RATANR

Meaning: Indicates the length of the timer of CGIreading for event-triggered ANR with GERAN.GUI Value Range: 2~16Unit: 0.5sActual Value Range: 1~8Default Value: 8

ANR UtranEventAnrMode

MODANRLSTANR

LOFD-002002 /TDLOFD-002002

Inter-RATANR

Meaning:Indicates the policy based on which inter-RAT event-triggered ANR with UTRAN adds a neighborrelationship to an NRT.

If this parameter is set toBASED_NCL(BASED_NCL), this type of ANR addsneighbor relationships to NRTs based on NCLs.

If this parameter is set toNOT_BASED_NCL(NOT_BASED_NCL), this typeof ANR adds neighbor relationships to NRTs based onCGIs reported by UEs.GUI Value Range: BASED_NCL(BASED_NCL),NOT_BASED_NCL(NOT_BASED_NCL)Unit: NoneActual Value Range: BASED_NCL,NOT_BASED_NCLDefault Value: BASED_NCL(BASED_NCL)

ANR GeranEventAnrMode

MODANRLSTANR

LOFD-002002 /TDLOFD-002002

Inter-RATANR

Meaning:Indicates the policy based on which inter-RAT event-triggered ANR with GERAN adds a neighborrelationship to an NRT.

If this parameter is set toBASED_NCL(BASED_NCL), this type of ANR addsneighbor relationships to NRTs based on NCLs.

If this parameter is set toNOT_BASED_NCL(NOT_BASED_NCL), this typeof ANR adds neighbor relationships to NRTs based onCGIs reported by UEs.GUI Value Range: BASED_NCL(BASED_NCL),NOT_BASED_NCL(NOT_BASED_NCL)Unit: NoneActual Value Range: BASED_NCL,NOT_BASED_NCLDefault Value: BASED_NCL(BASED_NCL)



180

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

CellAlgoSwitch

NCellClassMgtSw

MODCELLALGOSWITCHLSTCELLALGOSWITCH


Neighbor cellClassificationManagement

Meaning:Indicates neighboring cell classification management.This parameter consists of the following switches:

INTRA_RAT_NCELL_CLASS_SW: If this switch ison, IntraRatEventAnrSwitch is on, and the ANRindicator is set to ALLOWED for this frequency, theneighboring cell classification label is automaticallymarked for a neighboring cell based on the handovertimes within a specified period of time.

NCELL_CLASS_HO_POLICY_SW: If this switch ison, IntraRatEventAnrSwitch is on, the ANR indicatoris set to ALLOWED for this frequency, and theNCellClassLabel parameter value is EXTENDED,target cells for handovers must be determined basedon E-UTRAN cell global identifier (ECGI) reading.

NCELL_CLASS_PCI_CONFLICT_SW: If thisswitch is on, PCI conflict detection and reporting arenot performed on the neighboring cells whoseNCellClassLabel parameter value is EXTENDED.GUI Value Range:INTRA_RAT_NCELL_CLASS_SW(INTRA_RAT_NCELL_CLASS_SW),NCELL_CLASS_HO_POLICY_SW(NCELL_CLASS_HO_POLICY_SW),NCELL_CLASS_PCI_CONFLICT_SW(NCELL_CLASS_PCI_CONFLICT_SW)Unit: NoneActual Value Range:INTRA_RAT_NCELL_CLASS_SW,NCELL_CLASS_HO_POLICY_SW,NCELL_CLASS_PCI_CONFLICT_SWDefault Value:INTRA_RAT_NCELL_CLASS_SW:Off,NCELL_CLASS_HO_POLICY_SW:Off,NCELL_CLASS_PCI_CONFLICT_SW:Off



181

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

NCellClassMgt

StatPeriodForNcellClass

MODNCELLCLASSMGTLSTNCELLCLASSMGT



Meaning: Indicates the length of the measurementperiod for neighboring cell classification management.Within a specified measurement period, if the numberof handovers from the source cell to a neighboring cellreaches the HoAttemptThd, the neighboring cell islabeled as FORMAL. Within four consecutivespecified measurement periods, if the number cannotreach the HoAttemptThd, the neighboring cell islabeled as EXTENDED.GUI Value Range: 1~50400Unit: minActual Value Range: 1~50400Default Value: 1440

NCellClassMgt

HoAttemptThd

MODNCELLCLASSMGTLSTNCELLCLASSMGT



Meaning: Indicates the handover number threshold forneighboring cell classification management. Within aspecified measurement period, if the number ofhandovers from the source cell to a neighboring cellreaches this threshold, the neighboring cell is labeledas FORMAL. Within four consecutive specifiedmeasurement periods, if the number cannot reach thisthreshold, the neighboring cell is labeled asEXTENDED.GUI Value Range: 0~10000Unit: NoneActual Value Range: 0~10000Default Value: 20


NCellClassLabel

ADDEUTRANINTRAFREQNCELLMODEUTRANINTRAFREQNCELLLSTEUTRANINTRAFREQNCELL



Meaning: Indicates the neighboring cell classificationlabel. The parameter values FORMAL andEXTENDED represent different neighboring cellmanagement policies. If the number of handovers to aneighboring cell reaches a predefined threshold, theparameter is set to FORMAL for this neighboring cell;otherwise, the parameter is set to EXTENDED for thisneighboring cell.GUI Value Range: FORMAL(FORMAL),EXTENDED(EXTENDED)Unit: NoneActual Value Range: FORMAL, EXTENDEDDefault Value: FORMAL(FORMAL)



182

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

ENodeBAlgoSwitch

PciConflictAlmSwitch


LOFD-002007 /TDLOFD-002007

PCICollisionDetection &Self-Optimization

Meaning: Indicates whether to display PCI conflictalarms in the alarm console. Consider that thisparameter is set to on. IfCOLLISION_DETECT_SWITCH of thePciConflictDetectSwitch parameter in theENodeBAlgoSwitch MO is on and PCI collisionoccurs, PCI collision alarms are displayed in the alarmconsole. If CONFUSION_DETECT_SWITCH of thePciConflictDetectSwitch parameter in theENodeBAlgoSwitch MO is on and PCI confusionoccurs, PCI confusion alarms are displayed in thealarm console. If the PciConflictAlmSwitch parameteris set to off, PCI conflict alarms are not displayed inthe alarm console.GUI Value Range: OFF(Off), ON(On)Unit: NoneActual Value Range: OFF, ONDefault Value: OFF(Off)

NCellPlmnList

PlmnListType

ADDNCELLPLMNLISTMODNCELLPLMNLISTLSTNCELLPLMNLIST

None None Meaning: Indicates the type of a PLMN list. If thisparameter is set to BLACK_LIST(BLACK_LIST),the cell corresponding to a black-listed PLMN cannotbe configured as a neighboring cell or an external cellby ANR. If this parameter is set toGREY_LIST(GREY_LIST), the cell corresponding toa gray-listed PLMN can be added as a neighboringcell and an external cell by ANR, and the ANR marksa PLMN gray list label on the neighboring cell. If thisparameter is set to WHITE_LIST(WHITE_LIST), thecell corresponding to a white-listed PLMN can beadded as a neighboring cell and an external cell byANR, and the ANR marks a PLMN white list label onthe neighboring cell. This parameter is allowed to beset to only two values for all E-UTRAN, UTRAN, orGERAN cells whose PLMNs are in the PLMN list.The other parameter value is set for the E-UTRAN,UTRAN, or GERAN cells whose PLMNs are not inthe PLMN list by default.GUI Value Range: BLACK_LIST(BLACK_LIST),GREY_LIST(GREY_LIST),WHITE_LIST(WHITE_LIST)Unit: NoneActual Value Range: BLACK_LIST, GREY_LIST,WHITE_LISTDefault Value: BLACK_LIST(BLACK_LIST)



183

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

NCellPlmnList

RatType ADDNCELLPLMNLISTLSTNCELLPLMNLISTMODNCELLPLMNLISTRMVNCELLPLMNLIST

None None Meaning: Indicates the RAT of the neighboring cellcorresponding to the PLMN.GUI Value Range: EUTRAN(EUTRAN),UTRAN(UTRAN), GERAN(GERAN)Unit: NoneActual Value Range: EUTRAN, UTRAN, GERANDefault Value: None



184

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

ANR NrtDelMode

MODANRLSTANR



Meaning:Indicates the mode of automatically removingneighbor relationships by ANR. If event-triggeredANR and automatic neighbor relationship removal foran RAT are enabled, the following switches of theRAT take effect.

EUTRAN_DELREDUNDANCENCELL: If thischeck box is selected, the eNodeB periodically detectsfor neighboring E-UTRAN cells to which no UEs arehanded over from the local cell and removes theneighbor relationships with the cells from NRTs.

UTRAN_DELREDUNDANCENCELL: If this checkbox is selected, the eNodeB periodically detects forneighboring UTRAN cells to which no UEs arehanded over from the local cell and removes theneighbor relationships with the cells from the NRT.

GERAN_DELREDUNDANCENCELL: If this checkbox is selected, the eNodeB periodically detects forneighboring GERAN cells to which no UEs arehanded over from the local cell and removes theneighbor relationships with the cells from the NRT.

UTRAN_DELERRORNCELL: If this check box isselected, the eNodeB periodically detects forinappropriate neighboring UTRAN cells for which theincoming handover success rate is lower than thespecified threshold and removes the external cellentries of the cells and neighbor relationships with thecells from the NCL and NRT, respectively.

GERAN_DELERRORNCELL: If this check box isselected, the eNodeB periodically detects forinappropriate neighboring GERAN cells for which theincoming handover success rate is lower than thespecified threshold and removes the external cellentries and neighbor relationships with the cells fromthe NCL and NRT, respectively.

EUTRAN_DELCELLERRORNCELL: If this checkbox is selected, the eNodeB periodically detects forinappropriate neighboring E-UERAN cells for whichthe cell-specific incoming handover success rate islower than the specified threshold and then removesthe corresponding external cell entries and neighborrelationships with the cells from the NRT.

If event-triggered ANR and automatic neighborrelationship removal for an RAT are enabled, the



185

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

mechanism of inappropriate neighboring E-UERANcell configuration removal automatically takes effect.With this mechanism, the eNodeB periodically detectsfor inappropriate neighboring E-UERAN cells ofwhich the cell-specific incoming handover successrate is lower than the specified threshold and thenremoves the corresponding external cell entries andneighbor relationships with the cells from the NCLand NRT, respectively.

If event-triggered ANR and automatic neighborrelationship removal for an RAT are enabled, themechanism of inappropriate neighboring cellconfiguration removal and the mechanism ofredundant neighboring cell configuration removal areautomatically triggered if new external cells orneighbor relationships need to be added when thenumber of external cells or neighbor relationships ofan RAT reaches the upper limit.GUI Value Range:EUTRAN_DELREDUNDANCENCELL(EUTRAN_DELREDUNDANCENCELL),UTRAN_DELREDUNDANCENCELL(UTRAN_DELREDUNDANCENCELL),GERAN_DELREDUNDANCENCELL(GERAN_DELREDUNDANCENCELL),UTRAN_DELERRORNCELL(UTRAN_DELERRORNCELL),GERAN_DELERRORNCELL(GERAN_DELERRORNCELL),EUTRAN_DELCELLERRORNCELL(EUTRAN_DELCELLERRORNCELL)Unit: NoneActual Value Range:EUTRAN_DELREDUNDANCENCELL,UTRAN_DELREDUNDANCENCELL,GERAN_DELREDUNDANCENCELL,UTRAN_DELERRORNCELL,GERAN_DELERRORNCELL,EUTRAN_DELCELLERRORNCELLDefault Value:EUTRAN_DELREDUNDANCENCELL:Off,UTRAN_DELREDUNDANCENCELL:Off,GERAN_DELREDUNDANCENCELL:Off,UTRAN_DELERRORNCELL:Off,GERAN_DELERRORNCELL:Off,EUTRAN_DELCELLERRORNCELL:Off



186

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

Cell IntraFreqAnrInd

ADDCELLMODCELLLSTCELL

LOFD-002001 /TDLOFD-002001


Meaning: Indicates whether to enable ANR on intra-frequency neighboring cells and external cells. Thevalue ALLOWED indicates that this type of ANR isallowed. The value NOT_ALLOWED indicates thatthis type of ANR is not allowed.GUI Value Range:NOT_ALLOWED(NOT_ALLOWED),ALLOWED(ALLOWED)Unit: NoneActual Value Range: NOT_ALLOWED, ALLOWEDDefault Value: ALLOWED(ALLOWED)

EutranInterNFreq

AnrInd ADDEUTRANINTERNFREQMODEUTRANINTERNFREQLSTEUTRANINTERNFREQ

LOFD-002001 /TDLOFD-002001


Meaning: Indicates whether information about inter-frequency neighboring cells and external cellsconfigured on the frequency associated with theserving cell can be maintained by ANR. If thisparameter is set to ALLOWED, the information canbe maintained by ANR. If this parameter is set toNOT_ALLOWED, the information cannot bemaintained by ANR.

GUI Value Range:NOT_ALLOWED(NOT_ALLOWED),ALLOWED(ALLOWED)

Unit: None

Actual Value Range: NOT_ALLOWED, ALLOWED

Default Value: ALLOWED(ALLOWED)

GeranNfreqGroup

AnrInd ADDGERANNFREQGROUPMODGERANNFREQGROUPLSTGERANNFREQGROUP

LOFD-002002 /TDLOFD-002002

Inter-RATANR

Meaning: Indicates whether information aboutexternal cells and neighbor relationships with thesecells on frequencies in the neighboring GERANfrequency group can be maintained by ANR. If thisparameter is set to ALLOWED, the information canbe maintained by ANR. If this parameter is set toNOT_ALLOWED, the information cannot bemaintained by ANR.GUI Value Range:NOT_ALLOWED(NOT_ALLOWED),ALLOWED(ALLOWED)Unit: NoneActual Value Range: NOT_ALLOWED, ALLOWEDDefault Value: ALLOWED(ALLOWED)



187

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

UtranNFreq

AnrInd ADDUTRANNFREQMODUTRANNFREQLSTUTRANNFREQ

LOFD-002002 /TDLOFD-002002

Inter-RATANR

Meaning: Indicates whether information aboutneighboring UTRAN cells and external UTRAN cellsconfigured on the frequency associated with theserving cell can be maintained by ANR. If thisparameter is set to ALLOWED, the information canbe maintained by ANR. If this parameter is set toNOT_ALLOWED, the information cannot bemaintained by ANR.GUI Value Range:NOT_ALLOWED(NOT_ALLOWED),ALLOWED(ALLOWED)Unit: NoneActual Value Range: NOT_ALLOWED, ALLOWEDDefault Value: ALLOWED(ALLOWED)



188

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

Cell FreqPriorityForAnr


LOFD-002001 /TDLOFD-002001


Meaning:Indicates a frequency priority for removing a neighborrelationship from an NRT. When the NRT reaches itscapacity, the neighbor relationship with a cell workingon the lowest priority frequency is preferentiallyremoved. A smaller parameter value indicates a lowerpriority.

If all intra-RAT frequencies are assigned the samepriority 0, neighbor relationships are removed fromthe NRT not based on the priority but based on thenumber of handovers. If the number of handovers to acell is the smallest, the neighbor relationship with thiscell is preferentially removed.

If all intra-RAT frequencies are assigned the samenon-zero priority, neighbor relationships are removedalso based on the number of handovers. If there areremovable neighboring cells working on the samefrequency as the new neighboring cell to be added, theneighbor relationship with a cell that has the smallestnumber of handovers is preferentially removed;otherwise, the frequency on which the newneighboring cell works is not considered during theremoval.

If all intra-RAT frequencies are not assigned the samepriority, neighbor relationships are removed from theNRT in ascending order of the priority and then thenumber of handovers.GUI Value Range: 0~31Unit: NoneActual Value Range: 0~31Default Value: 0



189

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

EutranInterNFreq

FreqPriorityForAnr

ADDEUTRANINTERNFREQMODEUTRANINTERNFREQLSTEUTRANINTERNFREQ

LOFD-002001 /TDLOFD-002001


Meaning:Indicates the priority of an E-UTRAN frequency forneighbor relationship removal when the number ofintra-RAT neighbor relationships reaches itsmaximum and the neighbor relationships with someE-UTRAN cells on several frequencies can beremoved. A smaller parameter value indicates a lowerfrequency priority.

If all values of this parameter for all E-UTRANfrequencies are 0, the eNodeB does not removeneighboring relationships based on E-UTRANfrequency priorities and removes the candidateneighbor relationship with the cell to which thenumber of UEs handed over from the local cell is thesmallest.

Consider that all values of this parameter for all E-UTRAN frequencies are the same non-zero value. Ifthe frequency serving the cell whose neighborrelationship is to be added has neighboring cellswhose neighbor relationships can be removed, theeNodeB removes the neighbor relationship with thecell that operates on this frequency and to which thenumber of UEs handed over from the local cell is thesmallest. If the frequency does not have neighboringcells whose neighbor relationships can be removed,the eNodeB does not remove neighboringrelationships based on E-UTRAN frequency prioritiesand removes the candidate neighbor relationship withthe cell to which the number of UEs handed over fromthe local cell is the smallest.

If not all values of this parameter for all E-UTRANfrequencies are the same, the eNodeB removes thecandidate neighbor relationship with the cell thatoperates on a frequency and to which the number ofUEs handed over from the local cell is the smallestbased on frequency priories in ascending order.GUI Value Range: 0~31Unit: NoneActual Value Range: 0~31Default Value: 0



190

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

UtranNFreq

FreqPriorityForAnr

ADDUTRANNFREQMODUTRANNFREQLSTUTRANNFREQ

LOFD-002002 /TDLOFD-002002

Inter-RATANR

Meaning:Indicates whether to prioritize frequencies ifneighboring UTRAN cells whose neighborrelationships can be removed operate on differentUTRAN frequencies when ANR removes UTRANneighbor relationships from the NRT in which thenumber of neighbor relationships reaches themaximum. A smaller parameter value indicates alower frequency priority and a higher probability ofneighbor relationships with neighboring UTRAN cellsoperating on the frequency being removed.

If all values of this parameter for all UTRANfrequencies are 0, the eNodeB does not removeneighboring relationships based on UTRAN frequencypriorities and removes the candidate neighborrelationship with the cell to which the number of UEshanded over from the local cell is the smallest.

Consider that all values of this parameter for allUTRAN frequencies are the same non-zero value. Ifthe frequency serving the cell whose neighborrelationship is to be added has neighboring cellswhose neighbor relationships can be removed, theeNodeB removes the neighbor relationship with thecell that operates on this frequency and to which thenumber of UEs handed over from the local cell is thesmallest. If the frequency does not have neighboringcells whose neighbor relationships can be removed,the eNodeB does not remove neighboringrelationships based on UTRAN frequency prioritiesand removes the candidate neighbor relationship withthe cell to which the number of UEs handed over fromthe local cell is the smallest.

If not all values of this parameter for all UTRANfrequencies are the same, the eNodeB removes thecandidate UTRAN neighbor relationship with the cellthat operates on a frequency and to which the numberof UEs handed over from the local cell is the smallestbased on frequency priories in ascending order.GUI Value Range: 0~31Unit: NoneActual Value Range: 0~31Default Value: 0



191

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

GeranNfreqGroup

FreqPriorityForAnr

ADDGERANNFREQGROUPMODGERANNFREQGROUPLSTGERANNFREQGROUP

LOFD-002002 /TDLOFD-002002

Inter-RATANR

Meaning:Indicates the priority of a GERAN frequency forneighbor relationship removal when the number ofinter-RAT neighbor relationships with GERANreaches its maximum and the neighobr relationshipswith some GERAN cells on several frequencies canbe removed. A smaller parameter value indicates alower frequency priority and a higher probability ofneighbor relationships with neighboring GERAN cellsoperating on the frequency being removed.

If all values of this parameter for all GERANfrequencies are 0, the eNodeB does not removeneighboring relationships based on GERAN frequencypriorities and removes the candidate neighborrelationship with the cell to which the number of UEshanded over from the local cell is the smallest.

Consider that all values of this parameter for allGERAN frequencies are the same non-zero value. Ifthe frequency serving the cell whose neighborrelationship is to be added has neighboring cellswhose neighbor relationships can be removed, theeNodeB removes the neighbor relationship with thecell that operates on this frequency and to which thenumber of UEs handed over from the local cell is thesmallest. If the frequency does not have neighboringcells whose neighbor relationships can be removed,the eNodeB does not remove neighboringrelationships based on GERAN frequency prioritiesand removes the candidate neighbor relationship withthe cell to which the number of UEs handed over fromthe local cell is the smallest.

If not all values of this parameter for all GERANfrequencies are the same, the eNodeB removes thecandidate GERAN neighbor relationship with the cellthat operates on a frequency and to which the numberof UEs handed over from the local cell is the smallestbased on frequency priories in ascending order.GUI Value Range: 0~31Unit: NoneActual Value Range: 0~31Default Value: 0



192

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

ANR UtranNcellHoForNRTDelThd

MODANRLSTANR

LOFD-002002 /TDLOFD-002002

Inter-RATANR

Meaning:Indicates a threshold for removing a neighborrelationship from a UTRAN NRT. When the NRTreaches its capacity and ANR needs to add a newneighbor relationship to the NRT, ANR removes anold neighbor relationship with a cell from the NRT ifthe number of handovers to this cell is less than thethreshold.

If this parameter is set to 0, ANR removes theneighbor relationship with a cell from an NRT notbased on the number of handovers to this cell butbased on the number of measurement reports on thiscell.

If this parameter is set to another value, ANR canremove the neighbor relationship with a cell from anNRT if the number of handovers to this cell is lessthan the threshold.GUI Value Range: 0~10000Unit: NoneActual Value Range: 0~10000Default Value: 0

ANR GeranNcellHoForNRTDelThd

MODANRLSTANR

LOFD-002002 /TDLOFD-002002

Inter-RATANR

Meaning:Indicates a threshold for removing a neighborrelationship from a GERAN NRT. When the NRTreaches its capacity and ANR needs to add a newneighbor relationship to the NRT, ANR removes anold neighbor relationship with a cell from the NRT ifthe number of handovers to this cell is less than thethreshold.





193

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

ANR SmartPreallocationMode

MODANRLSTANR

LOFD-002001 /TDLOFD-002001

AutomaticNeighbourRelation(ANR);

Meaning: Indicates whether smart preallocation takeseffect during ANR-triggered cell global identification(CGI) reading. Consider that SmartPreAllocationS-witch of the UlSchSwitch parameter is on. Setting thisparameter to DISABLE indicates that smartpreallocation does not take effect. Setting thisparameter to ENABLE indicates that smartpreallocation takes effect.GUI Value Range: DISABLE, ENABLEUnit: NoneActual Value Range: DISABLE, ENABLEDefault Value: ENABLE

Drx DrxInactivityTimerForAnr

MODDRXLSTDRX

LBFD-002017 /TDLBFD-002017

DRX Meaning: Indicates the length of the discontinuousreception (DRX) inactivity timer for automaticneighbor relation (ANR). If ANR is enabled, thisparameter takes effect regardless whether the DRXfeature is enabled. This parameter applies only to theLTE FDD system.GUI Value Range: PSF1(1 PDCCH subframe),PSF2(2 PDCCH subframes), PSF3(3 PDCCHsubframes), PSF4(4 PDCCH subframes), PSF5(5PDCCH subframes), PSF6(6 PDCCH subframes),PSF8(8 PDCCH subframes), PSF10(10 PDCCHsubframes), PSF20(20 PDCCH subframes), PSF30(30PDCCH subframes), PSF40(40 PDCCH subframes),PSF50(50 PDCCH subframes), PSF60(60 PDCCHsubframes), PSF80(80 PDCCH subframes),PSF100(100 PDCCH subframes), PSF200(200PDCCH subframes), PSF300(300 PDCCHsubframes), PSF500(500 PDCCH subframes),PSF750(750 PDCCH subframes), PSF1280(1280PDCCH subframes), PSF1920(1920 PDCCHsubframes), PSF2560(2560 PDCCH subframes)Unit: subframeActual Value Range: PSF1, PSF2, PSF3, PSF4, PSF5,PSF6, PSF8, PSF10, PSF20, PSF30, PSF40, PSF50,PSF60, PSF80, PSF100, PSF200, PSF300, PSF500,PSF750, PSF1280, PSF1920, PSF2560Default Value: PSF200(200 PDCCH subframes)



194

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

ANR AnrControlledHoStrategy

MODANRLSTANR

LOFD-001022 /TDLOFD-001022LOFD-001023 /TDLOFD-001023LOFD-001033 /TDLOFD-001033LOFD-001034 /TDLOFD-001034LOFD-001035 /TDLOFD-001035LOFD-001019 /TDLOFD-001019LOFD-001020 /TDLOFD-001020LOFD-001021 /TDLOFD-001021LOFD-001032 /TDLOFD-001032

SRVCCtoUTRANSRVCCtoGERANCSFallbacktoUTRANCSFallbacktoGERANCSFallbacktoCDMA20001xRTTPS Inter-RATMobilitybetweenE-UTRANandUTRANPS Inter-RATMobilitybetweenE-UTRANandGERANPS Inter-RATMobilitybetweenE-UTRANandCDMA2000Intra-LTE

Meaning: Indicates whether the eNodeB can initiatehandovers to a newly detected neighboring cell, withwhich the neighbor relationship is to be processed bythe OSS. When the OptMode parameter in the ANRMO is set to CONTROLLED, the eNodeB reports thenewly detected neighboring cell to the OSS formanual process. If this parameter is set toPERMIT_HO, the eNodeB can initiate handovers tothe newly detected neighboring cell before thecorresponding neighbor relationship is manuallyprocessed. If this parameter is set to FORBID_HO,the eNodeB cannot initiate handovers to the newlydetected neighboring cell before the correspondingneighbor relationship is manually processed.GUI Value Range: PERMIT_HO(PERMIT_HO),FORBID_HO(FORBID_HO)Unit: NoneActual Value Range: PERMIT_HO, FORBID_HODefault Value: PERMIT_HO(PERMIT_HO)



195

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

LOFD-001044 /TDLOFD-001044LOFD-001045 /TDLOFD-001045LOFD-002001 /TDLOFD-002001LOFD-002002 /TDLOFD-002002

LoadBalancingInter-RATLoadSharingtoUTRANInter-RATLoadSharingtoGERANAutomaticNeighbourRelation(ANR)Inter-RATANR



196

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

GlobalProcSwitch

VoipWithGapMode


LOFD-002001 /TDLOFD-002001LOFD-002002 /TDLOFD-002002LOFD-002007 /TDLOFD-002007MRFD-231808

AutomaticNeighbourRelation(ANR)Inter-RATANRPCICollisionDetection &Self-OptimizationGSMand LTEBufferZoneOptimization(LTE)

Meaning:Indicates whether VoIP UEs are allowed to enter theperiodical measurement gap and whether they can exitthe gap if VoIP services are initiated during the gap. AVoIP UE can enter the periodical measurement gapduring GSM and LTE buffer zone optimization orperiodic inter-frequency/RAT measurements in celltracing. If a UE enters the measurement gap and thenVoIP services are initiated for this UE, fast ANR,active PCI conflict detection, GSM and LTE bufferzone optimization, or periodic inter-frequency/RATmeasurements in cell tracing can trigger the UE'sexiting from the gap.

If this parameter is set to ENBALE, VoIP UEs areallowed to enter the periodic measurement gap duringGSM and LTE buffer zone optimization and periodicinter-frequency/RAT measurement in cell tracing. Theparameter setting does not affect the entering of thegap during fast ANR and active PCI conflict detectionfor VoIP UEs.

If this parameter is set to DISABLE, VoIP UEs areprohibited to enter the periodic measurement gap andthe UEs entering the gap and initiating VoIP servicescannot exit the gap.GUI Value Range: DISABLE(disable),ENABLE(enable)Unit: NoneActual Value Range: DISABLE, ENABLEDefault Value: ENABLE(enable)



197

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

ANR PeriodForNCellRanking

MODANRLSTANR

LOFD-002002/TDLOFD-002002LOFD-001022/TDLOFD-001022LOFD-001033/TDLOFD-001033LOFD-001052/TDLOFD-001052LOFD-001053/TDLOFD-001053LOFD-001019/TDLOFD-001019LOFD-001043/TDLOFD-001043LOFD-001072/TDLOFD-001072

Inter-RATANR;SRVCCtoUTRAN;CSFallbacktoUTRAN;FlashCSFallbacktoUTRAN;FlashCSFallbacktoGERAN;PS Inter-RATMobilitybetweenE-UTRANandUTRAN;Servicebasedinter-RAThandover toUTRAN;Distancebasedinter-RAThandover to

Meaning: Indicates the period for automaticoptimization on neighboring measurement priorities.The neighboring measurement priorities are arrangedbased on the number of times that each neighboringcell is measured within the optimization period.Suggestions on neighboring cell measurement priorityarrangement are exported after the optimizationperiod. The period is one week by default.Neighboring cell selection in handovers cannot beperformed based on the arranged neighboring cellmeasurement priorities within the time after theoptimization period ends but before the arrangedneighboring cell measurement priorities are obtained.GUI Value Range: 10~50400Unit: minActual Value Range: 10~50400Default Value: 10080



198

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

UTRAN;

Cell IntraFreqRanSharingInd




Meaning: Indicates whether an intra-frequencyneighboring cell is a shared neighboring cell. If thisparameter is set to BOOLEAN_TRUE, the servingfrequency is a shared frequency, and the sharedoperator information must be checked on the OSSbefore all intra-frequency neighboring cells are added.If this parameter is set to BOOLEAN_FALSE, theserving frequency is not a shared frequency, and theshared operator information does not need to bechecked on the OSS before all intra-frequencyneighboring cells are added.GUI Value Range: BOOLEAN_FALSE(False),BOOLEAN_TRUE(True)Unit: NoneActual Value Range: BOOLEAN_FALSE,BOOLEAN_TRUEDefault Value: BOOLEAN_TRUE(True)

EutranInterNFreq


ADDEUTRANINTERNFREQMODEUTRANINTERNFREQLSTEUTRANINTERNFREQ



Meaning: Indicates whether an intra-RAT inter-frequency neighboring cell is a shared neighboringcell. If this parameter is set to BOOLEAN_TRUE, theneighboring E-UTRAN frequency is a sharedfrequency, and the shared operator information mustbe checked on the OSS before all inter-frequencyneighboring cells are added. If this parameter is set toBOOLEAN_FALSE, the neighboring E-UTRANfrequency is not a shared frequency, and the sharedoperator information does not need to be checked onthe OSS before all inter-frequency neighboring cellsare added.GUI Value Range: BOOLEAN_FALSE(False),BOOLEAN_TRUE(True)Unit: NoneActual Value Range: BOOLEAN_FALSE,BOOLEAN_TRUEDefault Value: BOOLEAN_TRUE(True)



199

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

GeranNfreqGroup

GeranRanSharingInd



Inter-RATANR

Meaning: Indicates whether a neighboring GERANcell on the GERAN frequency is a shared neighboringGERAN cell. If this parameter is set toBOOLEAN_TRUE, the GERAN frequency is ashared frequency, and the shared operator informationmust be checked on the OSS before all neighboringGERAN cells are added. If this parameter is set toBOOLEAN_FALSE, the GERAN frequency is not ashared frequency, and the shared operator informationdoes not need to be checked on the OSS before allneighboring GERAN cells are added.GUI Value Range: BOOLEAN_FALSE(False),BOOLEAN_TRUE(True)Unit: NoneActual Value Range: BOOLEAN_FALSE,BOOLEAN_TRUEDefault Value: BOOLEAN_TRUE(True)

UtranNFreq

UtranRanSharingInd



Inter-RATANR

Meaning: Indicates whether a neighboring UTRANcell on the UTRAN frequency is a shared neighboringUTRAN cell. If this parameter is set toBOOLEAN_TRUE, the UTRAN frequency is ashared frequency, and the shared operator informationmust be checked on the OSS before all neighboringUTRAN cells are added. If this parameter is set toBOOLEAN_FALSE, the UTRAN frequency is not ashared frequency, and the shared operator informationdoes not need to be checked on the OSS before allneighboring UTRAN cells are added.GUI Value Range: BOOLEAN_FALSE(False),BOOLEAN_TRUE(True)Unit: NoneActual Value Range: BOOLEAN_FALSE,BOOLEAN_TRUEDefault Value: BOOLEAN_TRUE(True)



200

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

Drx LongDrxCycleForAnr

MODDRXLSTDRX

LBFD-002017 /TDLBFD-002017

DRX Meaning: Indicates the long DRX cycle for intra-RATANR. If intra-RAT ANR is enabled, this parameter isvalid regardless of whether DRX is enabled. If a longDRX cycle is configured for ANR measurement, it isrecommended that this parameter be set to a valueequal to or greater than 256 ms to ensure that the UEcan successfully obtain the CGI of a cell. However, ifthis parameter is set to a large value, the delay ofobtaining the CGI is large, and therefore the systemdelay increases.GUI Value Range: SF128(128 subframes), SF160(160subframes), SF256(256 subframes), SF320(320subframes), SF512(512 subframes), SF640(640subframes), SF1024(1024 subframes), SF1280(1280subframes), SF2048(2048 subframes), SF2560(2560subframes)Unit: subframeActual Value Range: SF128, SF160, SF256, SF320,SF512, SF640, SF1024, SF1280, SF2048, SF2560Default Value: SF320(320 subframes)

Drx LongDRXCycleforIRatAnr

MODDRXLSTDRX

LBFD-002017 /TDLBFD-002017

DRX Meaning: Indicates the long DRX cycle for inter-RATANR. If inter-RAT ANR is enabled, this parameter isvalid regardless of whether DRX is enabled. If thereare multiple inter-RAT systems, and all of themrequire inter-RAT ANR measurements, it isrecommended that this parameter be set to themaximum value of the long DRX cycle configured forinter-RAT ANR measurements. Otherwise, thesuccess rate for inter-RAT ANR measurements maybe affected.GUI Value Range: SF128(128 subframes), SF160(160subframes), SF256(256 subframes), SF320(320subframes), SF512(512 subframes), SF640(640subframes), SF1024(1024 subframes), SF1280(1280subframes), SF2048(2048 subframes), SF2560(2560subframes)Unit: subframeActual Value Range: SF128, SF160, SF256, SF320,SF512, SF640, SF1024, SF1280, SF2048, SF2560Default Value: SF1280(1280 subframes)



201

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

EutranExternalCell

CtrlMode

ADDEUTRANEXTERNALCELLMODEUTRANEXTERNALCELLLSTEUTRANEXTERNALCELL

LOFD-002001 /TDLOFD-002001


Meaning: Indicates the control policy on ANR-relatedMOs, which can be defined by the user or be based onthe automatic neighbor relation (ANR) algorithm.When this parameter is set to MANUAL_MODE, theANR-related MOs can be modified or removed byonly the user. A failure message is displayed when theuser adds an existing MO. When this parameter is setto AUTO_MODE, the ANR-related MOs can bemodified or removed by the user or based on the ANRalgorithm. The MO removal is successful even if theMO does not exist. An MO can be added both by theuser and based on the ANR algorithm. If an existingMO is to be added, the MO is modified when the userperforms the addition, but it cannot be added based onthe ANR algorithm. When the ANR-related MOs areautomatically added based on the ANR algorithm, thisparameter is set to AUTO_MODE by default. Whenthe ANR-related MOs are added by the user, thisparameter can be set to AUTO_MODE orMANUAL_MODE.GUI Value Range: AUTO_MODE(Auto Mode),MANUAL_MODE(Manual Mode)Unit: NoneActual Value Range: AUTO_MODE,MANUAL_MODEDefault Value: AUTO_MODE(Auto Mode)



202

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description


CtrlMode


LBFD-00201804/TDLBFD-00201804

DistanceBasedInter-frequencyHandover




203

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description


CtrlMode

ADDEUTRANINTERFREQNCELLMODEUTRANINTERFREQNCELLLSTEUTRANINTERFREQNCELL

LOFD-002001





204

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

UtranExternalCell

CtrlMode

ADDUTRANEXTERNALCELLMODUTRANEXTERNALCELLLSTUTRANEXTERNALCELL

LOFD-002002 /LOFD-002002

Inter-RATANR




205

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

UtranNCell

CtrlMode

ADDUTRANNCELLMODUTRANNCELLLSTUTRANNCELL

LOFD-002002

Inter-RATANR




206

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

GeranExternalCell

CtrlMode

ADDGERANEXTERNALCELLMODGERANEXTERNALCELLLSTGERANEXTERNALCELL

LOFD-002002 /TDLOFD-002002

Inter-RATANR




207

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

GeranNcell

CtrlMode

ADDGERANNCELLMODGERANNCELLLSTGERANNCELL

LOFD-002002 /TDLOFD-002002

Inter-RATANR


ANR OptMode

MODANRLSTANR



Meaning: Indicates the mode for optimizing neighborrelationships. If this parameter is set to FREE(FREE),the eNodeB automatically optimizes neighborrelationships using ANR. If this parameter is set toCONTROLLED(CONTROLLED), the eNodeBreports the neighbor relationships to be optimized tothe U2000 and the optimization is subject to manualconfirmation. Options EutranCtrlOptMode,UtranCtrlOptMode, and GeranCtrlOptMode of theOptModeStrategy parameter control whether to reportneighbor relationships with E-UTRAN cells, UTRANcells, and GERAN cells, respectively. No options aredesigned to control whether to report neighborrelationships with CDMA2000 cells.GUI Value Range: FREE(FREE),CONTROLLED(CONTROLLED)Unit: NoneActual Value Range: FREE, CONTROLLEDDefault Value: FREE(FREE)



208

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

BlindNcellOpt

OptMode

MODBLINDNCELLOPTLSTBLINDNCELLOPT

LOFD-002002 /TDLOFD-002002

Inter-RATANR

Meaning: Indicates the mode for optimizingneighboring cells for blind handovers. If thisparameter is set to FREE, the eNodeB automaticallychanges the priorities of neighboring cells in blindhandovers. If this parameter is set to CONTROLLED,the eNodeB only reports the configuration of andoptimization on neighboring cells for blind handoversto the U2000, and the U2000 delivers theconfiguration of and optimization on the neighboringcell after users confirm the configuration andoptimization.GUI Value Range: FREE(FREE),CONTROLLED(CONTROLLED)Unit: NoneActual Value Range: FREE, CONTROLLEDDefault Value: CONTROLLED(CONTROLLED)



209

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

ENodeBAlgoSwitch

AnrSwitch




Meaning: Indicates whether to enable AutomaticNeighbor Relation (ANR). This parameter includesthe following switches: IntraRatEventAnrSwitch: Ifthis switch is on, intra-RAT event-triggered ANR isenabled to construct and optimize intra-RAT neighborrelationships by triggering intra-RAT coverage-basedhandover events. IntraRatFastAnrSwitch: If thisswitch is on, intra-RAT fast ANR is enabled toconstruct and optimize intra-RAT neighborrelationships based on periodic intra-RATmeasurements. IntraRatAnrAutoDelSwitch: If thisswitch is on, IntraRatEventAnrSwitch is on, andNoRmvFlag of an intra-RAT neighboring cell is set toPERMIT_RMV_ENUM, automatic removal of theintra-RAT neighbor relationship is allowed. IfIntraRatAnrAutoDelSwitch is off, automatic removalof the intra-RAT neighbor relationship is not allowed.UtranEventAnrSwitch: If this switch is on, event-triggered ANR with UTRAN is enabled to constructand optimize inter-RAT neighbor relationships withUTRAN cells by triggering events for inter-RATcoverage-based handovers to UTRAN.GeranEventAnrSwitch: If this switch is on, event-triggered ANR with GERAN is enabled to constructand optimize inter-RAT neighbor relationships withGERAN cells by triggering events for inter-RATcoverage-based handovers to GERAN.UtranFastAnrSwitch: If this switch is on, fast ANRwith UTRAN is enabled to construct and optimizeinter-RAT neighbor relationships with UTRAN cellsbased on periodic UE measurements on UTRAN. TheeNodeB does not deliver information about externalUTRAN cells in the measurement configuration toUEs and the UEs measure only neighboring cellscontained in the measurement configuration.Therefore, if you want external UTRAN cells addedby fast ANR with UTRAN to be measured inhandovers, you are advised to turn onUtranEventAnrSwitch as well. GeranFastAnrSwitch:If this switch is on, fast ANR with GERAN is enabledto construct and optimize inter-RAT neighborrelationships with GERAN cells based on periodicinter-RAT measurements on GERAN.CdmaFastAnrSwitch: If this switch is on, fast ANRwith CDMA2000 is enabled to construct and optimizeinter-RAT neighbor relationships with CDMA2000cells based on periodic inter-RAT measurements onCDMA2000 networks. UtranAutonrtDeleteSwitch: If



210

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

this switch is on, UtranEventAnrSwitch is on, andNoRmvFlag of a neighboring UTRAN cell is set toPERMIT_RMV_ENUM, automatic removal of theinter-RAT neighbor relationship with UTRAN cells isallowed. If UtranAutonrtDeleteSwitch is off,automatic removal of the inter-RAT neighborrelationship with UTRAN cells is not allowed.GeranAutonrtDeleteSwitch: If this switch is on,GeranEventAnrSwitch is on, and NoRmvFlag of aneighboring GERAN cell is set toPERMIT_RMV_ENUM, automatic removal of theinter-RAT neighbor relationship with GERAN cells isallowed. If GeranAutonrtDeleteSwitch is off,automatic removal of the inter-RAT neighborrelationship with GERAN cells is not allowed.CdmaAutonrtDeleteSwitch: If this switch is on,CdmaEventAnrSwitch is on, and NoRmvFlag of aneighboring CDMA2000 cell is set toPERMIT_RMV_ENUM, automatic removal of theinter-RAT neighbor relationship with CDMA2000cells is allowed. If CdmaAutonrtDeleteSwitch is off,automatic removal of the inter-RAT neighborrelationship with CDMA2000 cells is not allowed.ExtendIntraRatAnrSwitch: Indicates whether cellswith unknown physical cell identifiers (PCIs) can beconfigured as external cells of the eNodeB by usingthe eCoordinator. If this switch is on, cells withunknown PCIs can be configured as external cells ofthe eNodeB by using the eCoordinator in any of thefollowing scenarios: (1) When unknown PCIs aredetected by triggering handover events,IntraRatEventAnrSwitch is off or the UE is incapableof reporting cell global identifications (CGIs). (2)When unknown PCIs are detected by performingperiodic intra-RAT measurements based on fast ANR,the UE is incapable of reporting CGIs. If this switch isoff, cells with unknown PCIs cannot be configured asexternal cells of the eNodeB by using theeCoordinator. CdmaEventAnrSwitch: If this switch ison, event-triggered ANR with CDMA2000 is enabledto construct and optimize inter-RAT neighborrelationships with CDMA2000 cells by triggeringevents for inter-RAT handovers to CDMA2000.MlbBasedEventAnrSwitch: Indicates whether toenable the MLB-based event-triggered ANR. Whenthis switch is on and IntraRatEventAnrSwitch is on,inter-frequency MLB can be triggered to construct andoptimize inter-frequency neighbor relationships with



211

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

intra-RAT cells. When this switch is on andUtranEventAnrSwitch is on, MLB to UTRAN can betriggered to construct and optimize inter-RATneighbor relationships with UTRAN cells. When thisswitch is on and GeranEventAnrSwitch is on, MLB toGERAN can be triggered to construct and optimizeinter-RAT neighbor relationships with GERAN cells.When this switch is off, the neighbor relationshipconstruction and optimization based on MLB isdisabled. IntraRatNoHoSetAnrSwitch: Indicateswhether to automatically set the NoHoFlag parameterof an intra-RAT neighboring cell toFORBID_HO_ENUM. If IntraRatEventAnrSwitchand IntraRatNoHoSetAnrSwitch are both on, theNoHoFlag parameter of a neighboring cell can beautomatically set. If IntraRatNoHoSetAnrSwitch isoff, the NoHoFlag parameter of a neighboring cellcannot be automatically set. To maintain servicequality, it is recommended that the neighboring cellwhose NoHoFlag is set to FORBID_HO_ENUM bemonitored when IntraRatNoHoSetAnrSwitch is on.This switch takes effect only when the OptModeparameter is set to FREE. IntraRatDoubleThdAnrS-witch: If this switch is on and IntraRatEventAnrS-witch is on, intra-RAT neighbor relationships can beconstructed and optimized based on intra-RAT ANRmeasurement events. The probability to trigger intra-RAT ANR measurement can be configured to behigher than or equal to that of the measurement forintra-RAT coverage-based handovers. IfIntraRatDoubleThdAnrSwitch is off, intra-RATneighbor relationships cannot be constructed oroptimized based on intra-RAT ANR measurementevents. In the current version, this switch applies onlyto LTE TDD cells. ServiceBasedEventAnrSwitch: Ifthis switch is on and IntraRatEventAnrSwitch is on,service-based inter-frequency handovers can triggerANR to add and optimize neighbor relationships withinter-frequency neighboring cells. If this switch is onand UtranEventAnrSwitch is on, service-basedhandovers can trigger ANR to add and optimizeneighbor relationships with neighboring UTRANcells. ServiceReqEventAnrSwitch: If this switch is onand IntraRatEventAnrSwitch is on, service-basedinter-frequency handovers can trigger ANR to add andoptimize neighbor relationships with inter-frequencyneighboring cells. IntraRatEnhancedEventAnrSwitch:Indicates whether to enable intra-RAT enhanced-



212

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

event-triggered ANR and controls whether to enableevent-triggered ANR algorithms, excluding coverage-based handovers, MLB-based handovers, service-based handovers, and service-request-basedhandovers. If this switch is on, IntraRatEventAnrS-witch is on, and the ANR Indicator parameter is set toALLOWED for the frequency, intra-RAT intra- andinter-frequency neighbor relationships can beconstructed and optimized based on related handovers.If IntraRatEnhancedEventAnrSwitch is off, intra-RATintra- and inter-frequency neighbor relationshipscannot be constructed and optimized based on relatedhandovers.GUI Value Range: IntraRatEventAnrS-witch(IntraRatEventAnrSwitch), IntraRatFastAnrS-witch(IntraRatFastAnrSwitch), IntraRatAnrAutoDelS-witch(IntraRatAnrAutoDelSwitch),UtranEventAnrSwitch(UtranEventAnrSwitch),GeranEventAnrSwitch(GeranEventAnrSwitch),UtranFastAnrSwitch(UtranFastAnrSwitch),GeranFastAnrSwitch(GeranFastAnrSwitch),CdmaFastAnrSwitch(CdmaFastAnrSwitch),UtranAutoNrtDeleteSwitch(UtranAutoNrtDeleteS-witch), GeranAutoNrtDeleteS-witch(GeranAutoNrtDeleteSwitch),CdmaAutoNrtDeleteSwitch(CdmaAutoNrtDeleteS-witch), ExtendIntraRatAnrS-witch(ExtendIntraRatAnrSwitch),CdmaEventAnrSwitch(CdmaEventAnrSwitch),MlbBasedEventAnrSwitch(MlbBasedEventAnrS-witch), IntraRatNoHoSetAnrS-witch(IntraRatNoHoSetAnrSwitch),IntraRatDoubleThdAnrSwitch(IntraRatDoubleTh-dAnrSwitch), ServiceBasedEventAnrS-witch(ServiceBasedEventAnrSwitch),ServiceReqEventAnrSwitch(ServiceReqEventAnrS-witch), IntraRatEnhancedEventAnrS-witch(IntraRatEnhancedEventAnrSwitch)Unit: NoneActual Value Range: IntraRatEventAnrSwitch,IntraRatFastAnrSwitch, IntraRatAnrAutoDelSwitch,UtranEventAnrSwitch, GeranEventAnrSwitch,UtranFastAnrSwitch, GeranFastAnrSwitch,CdmaFastAnrSwitch, UtranAutoNrtDeleteSwitch,GeranAutoNrtDeleteSwitch, CdmaAutoNrtDeleteS-witch, ExtendIntraRatAnrSwitch,CdmaEventAnrSwitch, MlbBasedEventAnrSwitch,IntraRatNoHoSetAnrSwitch, IntraRatDoubleTh-



213

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

dAnrSwitch, ServiceBasedEventAnrSwitch,ServiceReqEventAnrSwitch, IntraRatEnhancedEven-tAnrSwitchDefault Value: IntraRatEventAnrSwitch:Off,IntraRatFastAnrSwitch:Off, IntraRatAnrAutoDelS-witch:On, UtranEventAnrSwitch:Off,GeranEventAnrSwitch:Off, UtranFastAnrSwitch:Off,GeranFastAnrSwitch:Off, CdmaFastAnrSwitch:Off,UtranAutoNrtDeleteSwitch:On, GeranAutoNrtDele-teSwitch:On, CdmaAutoNrtDeleteSwitch:On,ExtendIntraRatAnrSwitch:Off,CdmaEventAnrSwitch:Off, MlbBasedEventAnrS-witch:Off, IntraRatNoHoSetAnrSwitch:Off,IntraRatDoubleThdAnrSwitch:Off,ServiceBasedEventAnrSwitch:Off,ServiceReqEventAnrSwitch:Off, IntraRatEnhancedE-ventAnrSwitch:Off

ANR CaUeChoseMode

MODANRLSTANR

LOFD-002001 /TDLOFD-002001


Meaning:Indicates the policy based on which the eNodeBselects UEs to perform cell global identification (CGI)reading for ANR.

If this parameter is set to CA_UE_CAP(CA UECapability), the eNodeB does not select the CA UEsthat support the CA bands in the CA bandcombinations supported by the eNodeB.

If this parameter is set toCA_UE_CARRIER_NUM(CA UE Carrier Number),the eNodeB does not select the CA UEs that are eachserved by more than one carrier.

If this parameter is set to ANR_UE_CAP(ANR UECapability), the eNodeB does not select the UEs thatdo not support ANR, that is, the eNodeB does notselect the UEs that do not support CGI reading.GUI Value Range: CA_UE_CAP(CA UE Capability),CA_UE_CARRIER_NUM(CA UE Carrier Number),ANR_UE_CAP(ANR UE Capability)Unit: NoneActual Value Range: CA_UE_CAP,CA_UE_CARRIER_NUM, ANR_UE_CAPDefault Value: CA_UE_CAP(CA UE Capability)



214

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

ANR EventAnrMode

MODANRLSTANR

LOFD-002001 /TDLOFD-002001


Meaning:Indicates the policy based on which intra-RAT event-triggered ANR adds a neighbor relationship to anNRT.

If this parameter is set to BASED_NCL, intra-RATevent-triggered ANR can add a neighbor relationshipto an NRT based on the NCL.

If this parameter is set to NOT_BASED_NCL, intra-RAT event-triggered ANR adds a neighborrelationship to an NRT based on the CGI reportedfrom the UE but not based on the NCL.GUI Value Range: BASED_NCL(BASED_NCL),NOT_BASED_NCL(NOT_BASED_NCL)Unit: NoneActual Value Range: BASED_NCL,NOT_BASED_NCLDefault Value: BASED_NCL(BASED_NCL)



215

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

ANR StatisticPeriodForNRTDel

MODANRLSTANR



Meaning:Indicates the length of a measurement period withinwhich the eNodeB determines whether to remove theneighbor relationship with a neighboring cell based onthe number of handovers from the local cell to theneighboring cell and the number of measurementreports that include the neighboring cell when thenumber of neighbor relationships in the NRT hasreached the maximum and a new neighborrelationship needs to be added to the NRT by ANR.

This parameter is also used for the determination ofexternal cell removal from a neighboring cell list(NCL). Within four consecutive measurement periods,if the neighbor relationship corresponding to anexternal cell is not added to the NRT, and the localeNodeB is not configured with an X2 interface withthe peer eNodeB that serves this external cell, thisexternal cell is removed from the NCL.

This parameter is also used for the determination ofremoving redundant neighbor relationships from theNRT. If no UEs are handed over to a neighboring cellfrom the local cell within four consecutivemeasurement periods, the neighbor relationship withthis neighboring cell is removed from the NRT.GUI Value Range: 1~50400Unit: minActual Value Range: 1~50400Default Value: 10080

ANR StatisticPeriod

MODANRLSTANR

LOFD-002001 /TDLOFD-002001


Meaning: Indicates the length of a measurementperiod. Based on the handover success rate collectedwithin a measurement period, ANR determineswhether to remove a neighbor relationship with aneighboring cell from the NRT or set the NoHoFlagparameter for the neighboring cell toFORBID_HO_ENUM(Forbid Ho).GUI Value Range: 1~10080Unit: minActual Value Range: 1~10080Default Value: 1440



216

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

ANR NcellHoStatNum

MODANRLSTANR

LOFD-002001 /TDLOFD-002001


Meaning: Indicates the total number of handovers to aneighboring cell above which ANR determineswhether to remove the neighbor relationship with thiscell from the NRT or set the NoHoFlag parameter forthis cell to FORBID_HO_ENUM(Forbid Ho) on thebasis of the handover success rate.GUI Value Range: 1~10000Unit: NoneActual Value Range: 1~10000Default Value: 200

ANR DelCellThd

MODANRLSTANR

LOFD-002001 /TDLOFD-002001


Meaning: Indicates the threshold for removing aneighbor relationship with a cell by ANR based on thehandover success rate. The threshold is the percentageof the number of successful handovers to the totalnumber of handovers from the local cell to theneighboring cell. For example, an external cell isconfigured as a neighboring cell for all cells under aneNodeB, this neighboring cell permits automaticremoval of the neighboring relationship by ANR andthe ctrlmode is Auto_Mode. If the success rate ofhandovers from each cell under the eNodeB to thisneighboring cell is lower than or equal to thisthreshold after a measurement period, thecorresponding external cell and the neighborrelationship with this cell are automatically removed.GUI Value Range: 0~100Unit: %Actual Value Range: 0~100Default Value: 0



217

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

ANR StatisticNumForNRTDel

MODANRLSTANR



Meaning:Indicates the threshold of the total number ofhandovers from the local cell to all neighboring cells,above which the eNodeB determines whether toremove neighbor relationships from an NRT when thenumber of neighbor relationships has reached themaximum or whether to periodically removeredundant neighbor relationships from the NRT.

Consider that the number of neighbor relationships inthe NRT has reached its maximum, and a newneighbor relationship needs to be added by ANR. Ifthe total number of handovers (of all types) from thelocal cell to all neighboring cells in the lastmeasurement period specified by the StatisticPeriod-ForNRTDel parameter reaches this parameter value,the eNodeB removes a neighbor relationship from theNRT.

In periodic redundant neighbor relationship removal,the eNodeB removes redundant neighbor relationshipsif the total number of handovers (of all types) from thelocal cell to all neighboring cells reaches thisparameter value within four consecutive measurementperiods. The measurement period is specified by theStatisticPeriodForNRTDel parameter.GUI Value Range: 1~10000Unit: NoneActual Value Range: 1~10000Default Value: 200

ANR FastAnrCheckPeriod

MODANRLSTANR



Meaning: Indicates the fast ANR checking timer.When the timer is expired, the eNodeB automaticallychecks whether to disable fast ANR.GUI Value Range: 1~10080Unit: minActual Value Range: 1~10080Default Value: 60



218

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

ANR FastAnrIntraRatMeasUeNum

MODANRLSTANR

LOFD-002001 /TDLOFD-002001


Meaning: Indicates the maximum allowed number ofUEs that perform intra-RAT measurements for fastANR. After the number of UEs performing intra-RATmeasurements for fast ANR reaches the maximumnumber, intra-RAT measurements for fast ANR willnot be performed on other UEs.GUI Value Range: 1~200Unit: NoneActual Value Range: 1~200Default Value: 5

ANR FastAnrInterRatMeasUeNum

MODANRLSTANR

LOFD-002002 /TDLOFD-002002

Inter-RATANR

Meaning: Indicates the maximum allowed number ofUEs that perform inter-RAT measurements for fastANR. After the number of UEs performing inter-RATmeasurements for fast ANR reaches the maximumnumber, inter-RAT measurements for fast ANR willnot be performed on other UEs.GUI Value Range: 1~200Unit: NoneActual Value Range: 1~200Default Value: 5

ANR FastAnrRprtInterval

MODANRLSTANR



Meaning: Indicates the interval at which periodicmeasurement reports are sent for fast ANR.GUI Value Range: 120ms, 240ms, 480ms, 640ms,1024ms, 2048ms, 5120ms, 10240ms, 1min, 6min,12min, 30min, 60minUnit: NoneActual Value Range: 120ms, 240ms, 480ms, 640ms,1024ms, 2048ms, 5120ms, 10240ms, 1min, 6min,12min, 30min, 60minDefault Value: 5120ms

ANR FastAnrRprtAmount

MODANRLSTANR



Meaning: Indicates the number of periodicmeasurement reports sent for fast ANR.GUI Value Range: r1(1), r2(2), r4(4), r8(8), r16(16),r32(32), r64(64), Infinity(Infinity)Unit: NoneActual Value Range: r1, r2, r4, r8, r16, r32, r64,InfinityDefault Value: r4(4)



219

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

ANR FastAnrRsrpThd

MODANRLSTANR

LOFD-002001 /TDLOFD-002001


Meaning: Indicates the reference signal receivedpower (RSRP) threshold for intra-RAT fast ANR. Ifthe signal quality in a neighboring E-UTRAN cellreported by the UE is lower than the threshold, the cellis not automatically added as an external cell of theeNodeB.GUI Value Range: -130~-70Unit: dBmActual Value Range: -130~-70Default Value: -102

ANR FastAnrRscpThd

MODANRLSTANR

LOFD-002002 /TDLOFD-002002

Inter-RATANR

Meaning: Indicates the received signal code power(RSCP) threshold for fast ANR with UTRAN. If thesignal quality in a neighboring UTRAN cell reportedby the UE is lower than the threshold, the cell is notautomatically added as an external cell of the eNodeB.GUI Value Range: -120~-25Unit: dBmActual Value Range: -120~-25Default Value: -106

ANR FastAnrRssiThd

MODANRLSTANR

LOFD-002002 /TDLOFD-002002

Inter-RATANR

Meaning: Indicates the received signal strengthindicator (RSSI) threshold for fast ANR withGERAN. If the signal quality in a neighboringGERAN cell reported by the UE is lower than thethreshold, the cell is not automatically added as anexternal cell of the eNodeB.GUI Value Range: -110~-48Unit: dBmActual Value Range: -110~-48Default Value: -103

ANR FastAnrIntraRatUeNumThd

MODANRLSTANR

LOFD-002001 /TDLOFD-002001


Meaning: Indicates the threshold above which theeNodeB enters the monitoring state for intra-RAT fastANR. The threshold is expressed as the number ofUEs that have performed measurements for intra-RATfast ANR.GUI Value Range: 1~10000Unit: NoneActual Value Range: 1~10000Default Value: 20



220

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

ANR FastAnrInterRatUeNumThd

MODANRLSTANR

LOFD-002002 /TDLOFD-002002

Inter-RATANR

Meaning: Indicates the threshold above which theeNodeB enters the monitoring state for inter-RAT fastANR. The threshold is expressed as the number ofUEs that have performed measurements for inter-RATfast ANR.GUI Value Range: 1~10000Unit: NoneActual Value Range: 1~10000Default Value: 20

ANR FastAnrMode

MODANRLSTANR

LOFD-002001 /TDLOFD-002001LOFD-002002/TDLOFD-002002


Meaning:Indicates the policy based on which fast ANR adds adetected cell to an NCL and adds the neighborrelationship with the detected cell to an NRT of thesource cell.

If this parameter is set to NCL_MODE(NCL Mode),fast ANR only adds a detected cell that meets certainconditions to an NCL.

If this parameter is set to NCL_NRT_MODE(NCLand NRT Mode), fast ANR adds a detected cell thatmeets certain conditions to an NCL and then adds theneighboring relationship with the detected cell that isin the NCL to the NRT of the source cell.

If this parameter is set to NRT_MODE(NRT_MODE),fast ANR adds a detected cell that meets certainconditions and with which the neighbor relationship isnot in an NRT of the source cell to an NCL and addsthe neighbor relationship with the detected cell to anNRT of the source cell based on CGI reading.Neighboring relationships with cells that meet certainconditions and are in an NCL cannot be directly addedto the NRT.GUI Value Range: NCL_MODE(NCL Mode),NCL_NRT_MODE(NCL and NRT Mode),NRT_MODE(NRT_MODE)Unit: NoneActual Value Range: NCL_MODE,NCL_NRT_MODE, NRT_MODEDefault Value: NCL_MODE(NCL Mode)



221

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

ANR NoHoSetThd

MODANRLSTANR

LOFD-002001 /TDLOFD-002001


Meaning: Indicates the threshold based on whichintra-RAT ANR automatically sets the NoHoFlag of aneighboring cell to FORBID_HO_ENUM(Forbid Ho)when the handover success rate is equal to or less thanthe NoHoSetThd parameter value. The threshold is thepercentage of the number of successful handovers tothe total number of handovers from the local cell tothe neighboring cell. If the handover success rate isequal to or less than the threshold within ameasurement period specified by the StatisticPeriodparameter, intra-RAT ANR automatically sets theNoHoFlag of the neighboring cell toFORBID_HO_ENUM(Forbid Ho).GUI Value Range: 0~100Unit: %Actual Value Range: 0~100Default Value: 40

ENodeBAlgoSwitch

BlindNcellOptSwitch



Inter-RATANR

Meaning: Indicates the switch used to enable ordisable neighboring GERAN or UTRAN celloptimization for blind handovers.GUI Value Range: GeranBlindNcellOptSwitch,UtranBlindNcellOptSwitchUnit: NoneActual Value Range: GeranBlindNcellOptSwitch,UtranBlindNcellOptSwitchDefault Value: GeranBlindNcellOptSwitch:Off,UtranBlindNcellOptSwitch:Off

BlindNcellOpt

StatisticPeriod


LOFD-002002 /TDLOFD-002002

Inter-RATANR

Meaning: Indicates the statistic period for blindneighboring cell optimization. Information aboutCSFB-triggered measurement-based handovers orCSFB-triggered blind handovers is collected withinthe statistic period, and suggestions on blindneighboring cell optimization are exported after thestatistic period. The statistic period is seven days bydefault.GUI Value Range: 1~50400Unit: minActual Value Range: 1~50400Default Value: 10080



222

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

UtranNFreq

ContinuCoverageIndication


None None Meaning: Indicates whether the coverage area of aUTRAN frequency is continuous. The parametervalue CONTINUOUS indicates that the coverage areais continuous. The parameter valueNON_CONTINUOUS indicates that the coveragearea is non-continuous. Only neighboring UTRANcells working at the UTRAN frequency that hascontinuous coverage are considered in thedetermination of candidate cells for blind CSFB toUTRAN.GUI Value Range:NON_CONTINUOUS(NON_CONTINUOUS),CONTINUOUS(CONTINUOUS)Unit: NoneActual Value Range: NON_CONTINUOUS,CONTINUOUSDefault Value:NON_CONTINUOUS(NON_CONTINUOUS)

GeranNfreqGroup

ContinuCoverageIndication


None None Meaning: Indicates whether the coverage area of aGERAN frequency group is continuous. Theparameter value CONTINUOUS indicates that thecoverage area is continuous. The parameter valueNON_CONTINUOUS indicates that the coveragearea is non-continuous. Only neighboring GERANcells working at the GERAN frequency group that hascontinuous coverage are considered in thedetermination of candidate cells for blind CSFB toGERAN.GUI Value Range:NON_CONTINUOUS(NON_CONTINUOUS),CONTINUOUS(CONTINUOUS)Unit: NoneActual Value Range: NON_CONTINUOUS,CONTINUOUSDefault Value:NON_CONTINUOUS(NON_CONTINUOUS)



223

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

BlindNcellOpt

SampleNumThd


LOFD-002002 /TDLOFD-002002

Inter-RATANR

Meaning: Indicates the sampling number threshold ofhandovers from the E-UTRAN cell to neighboringcells. During the planning of neighboring cells forblind handovers, if the number of CSFB-triggeredmeasurement-based handover attempts from the E-UTRAN cell to neighboring cells working at afrequency (or frequency group) within a measurementperiod is greater than this parameter value,neighboring cells working at the frequency (orfrequency group) can be selected as candidate cells inblind handovers. In blind neighboring celloptimization, if the number of CSFB-triggered blindhandover attempts from the E-UTRAN cell to aneighboring cell that has been selected as a candidatecell in blind handovers within a measurement periodis greater than this parameter value, this neighboringcell can remain as a candidate cell in blind handovers.GUI Value Range: 1~1000000Unit: NoneActual Value Range: 1~1000000Default Value: 200

BlindNcellOpt

CsfbHoAttempRatioThd


LOFD-002002 /TDLOFD-002002

Inter-RATANR

Meaning: Indicates the CSFB-triggered measurement-based handover attempt threshold for determiningwhether a neighboring cell can be selected as acandidate cell in blind handovers. In a measurementperiod, the ratio of the CSFB-triggered measurement-based handover attempts from the E-UTRAN cell to aneighboring cell to all CSFB-triggered measurement-based handover attempts from the E-UTRAN cell toall neighboring cells working on the correspondingfrequency (or frequency group) is measured. If theratio is greater than or equal to this threshold, theneighboring cell can be selected as a candidate cell inblind handovers.GUI Value Range: 0~100Unit: %Actual Value Range: 0~100Default Value: 98



224

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

BlindNcellOpt

HoSuccRateThd


LOFD-002002 /TDLOFD-002002

Inter-RATANR

Meaning: Indicates the handover success ratethreshold for determining whether a neighboring cellcan be selected as a candidate cell in blind handovers.If the success rate of measurement-based handoversfor a UE from the E-UTRAN cell to a neighboringcell is greater than or equal to this parameter valuewithin a measurement period, the neighboring cell canbe selected as a candidate cell in blind handovers.GUI Value Range: 0~100Unit: %Actual Value Range: 0~100Default Value: 98

BlindNcellOpt

BlindHoSuccRateThd


LOFD-002002 /TDLOFD-002002

Inter-RATANR

Meaning: Indicates the blind handover success ratethreshold for determining whether a neighboring cellselected as a candidate cell in blind handovers canremain as a candidate cell in blind handovers. If theblind handover success rate of handing over a UEfrom the E-UTRAN cell to the neighboring cell thathas been selected as a candidate cell in blindhandovers is less than or equal to this parameter valuewithin a measurement period, the neighboring cellcannot remain as a candidate cell in blind handovers.GUI Value Range: 0~100Unit: %Actual Value Range: 0~100Default Value: 98



225

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

UtranNCell

NCellMeasPriority

ADDUTRANNCELLLSTUTRANNCELL

LOFD-002002/TDLOFD-002002LOFD-001022/TDLOFD-001022LOFD-001033/TDLOFD-001033LOFD-001052/TDLOFD-001052LOFD-001019/TDLOFD-001019LOFD-001043/TDLOFD-001043LOFD-001072/TDLOFD-001072

Inter-RATANRSRVCCtoUTRANCSFallbacktoUTRANFlashCSFallbacktoUTRANPS Inter-RATMobilitybetweenE-UTRANandUTRANServicebasedinter-RAThandover toUTRANDistancebasedinter-RAThandover toUTRAN

Meaning: Indicates the measurement priority of theneighboring UTRAN cell. A larger value indicates ahigher priority. The measurement priorities can beperiodically and automatically arranged based on thenumber of times that each neighboring UTRAN cell ismeasured. The neighboring UTRAN cells for UTRANmeasurement control, UTRAN flash blindredirections, and UTRAN flash-CSFB-basedredirections can be selected based on the measurementpriorities of neighboring UTRAN cells.GUI Value Range: 0~128Unit: NoneActual Value Range: 0~128Default Value: 0



226

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

GeranNcell

NCellMeasPriority

ADDGERANNCELLLSTGERANNCELL

LOFD-002002/TDLOFD-002002LOFD-001053/TDLOFD-001053

Inter-RATANRFlashCSFallbacktoGERAN;

Meaning: Indicates the measurement priority of theneighboring GERAN cell. A larger value indicates ahigher priority. The measurement priorities can beperiodically and automatically arranged based on thenumber of times that each neighboring GERAN cell ismeasured. The neighboring GERAN cells for GERANflash blind redirections or GERAN flash-CSFB-basedredirections can be selected based on the measurementpriorities of neighboring GERAN cells.GUI Value Range: 0~64Unit: NoneActual Value Range: 0~64Default Value: 0



227

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

ENodeBAlgoSwitch

NCellRankingSwitch


LOFD-002002/TDLOFD-002002LOFD-001022/TDLOFD-001022LOFD-001033/TDLOFD-001033LOFD-001052/TDLOFD-001052LOFD-001053/TDLOFD-001053LOFD-001019/TDLOFD-001019LOFD-001043/TDLOFD-001043LOFD-001072/TDLOFD-001072

Inter-RATANRSRVCCtoUTRANCSFallbacktoUTRANFlashCSFallbacktoUTRANFlashCSFallbacktoGERANPS Inter-RATMobilitybetweenE-UTRANandUTRANServicebasedinter-RAThandover toUTRANDistancebasedinter-RAThandover toUTRAN

Meaning: Indicates whether to enable neighboring cellranking. This parameter consists of the followingswitches: GERAN_SWITCH: Indicates whether theeNodeB prioritizes measurement priorities ofneighboring GERAN cells based on the number ofeach neighboring GERAN cell is measured within aperiod of time. The eNodeB prioritizes measurementpriorities only when this switch is on.UTRAN_SWITCH: Indicates whether the eNodeBprioritizes measurement priorities of neighboringUTRAN cells based on the number of eachneighboring UTRAN cell is measured within a periodof time. The eNodeB prioritizes measurementpriorities of neighboring UTRAN cells based on thenumber of each neighboring UTRAN cell is measuredwithin a period of time only when this switch is on.GUI Value Range: GERAN_SWITCH(GREANNeighboring Cell Ranking Switch),UTRAN_SWITCH(UTRAN Neighboring CellRanking Switch)Unit: NoneActual Value Range: GERAN_SWITCH,UTRAN_SWITCHDefault Value: GERAN_SWITCH:Off,UTRAN_SWITCH:Off



228

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

ENodeBAlgoSwitch

RanSharingAnrSwitch


LOFD-002001 /TDLOFD-002001LOFD-002002 /TDLOFD-002002LOFD-001036 /TDLOFD-001036LOFD-001037 /TDLOFD-001037LOFD-070206

AutomaticNeighbourRelation(ANR)Inter-RATANRRANSharingwithCommonCarrierRANSharingwithDedicatedCarrierHybridRANSharing

Meaning:Indicates the ANR algorithm switch in RAN sharingmode. Related switches are described as follows:

NBSLTEPLMNRoundSwitch: If this switch is on,some neighboring eNodeBs provide cells that work inRAN sharing mode and broadcast their PLMN lists ina round robin (RR) manner. In this situation, ifIntraRatEventAnrSwitch or IntraRatFastAnrSwitch ison for the local eNodeB, the local eNodeB will ask theU2000 for the actual cell global identifier (CGI) andPLMN list for a cell broadcasting PLMNs in an RRmanner after the UE reports the CGI of the cell duringANR measurements. If both NBSLTEPLMNRound-Switch and NBSLTERANSharingSwitch are on,NBSLTEPLMNRoundSwitch overridesNBSLTERANSharingSwitch.

NBSLTERANSharingSwitch: If this switch is on,some neighboring eNodeBs provide cells that work inRAN sharing mode. In this situation, ifIntraRatEventAnrSwitch or IntraRatFastAnrSwitch ison for the local eNodeB, the local eNodeB will ask theU2000 for the PLMN list for a cell after the UEreports the CGI of the cell during ANR measurements.If the UE has reported the PLMNlist, the localeNodeB will not ask the U2000 for the PLMN list.

NBSUTRANRANSharingSwitch: If this switch is on,some neighboring NodeBs provide cells that work inUTRAN sharing mode. In this situation, ifUtranEventAnrSwitch or UtranFastAnrSwitch is onfor the local eNodeB, the local eNodeB will ask theU2000 for the PLMN list for a cell after the UEreports the CGI of the cell during ANR measurements.If the UE has reported the PLMNlist, the localeNodeB will not ask the U2000 for the PLMN list.

NBSGERANRANSharingSwitch: If this switch is on,some neighboring BTSs provide cells that work inGERAN sharing mode. In this situation, ifGeranEventAnrSwitch or GeranFastAnrSwitch is onfor the local eNodeB, the local eNodeB will ask theU2000 for the PLMN list for a cell after the UEreports the CGI of the cell during ANR measurements.GUI Value Range: NBSLTEPLMNRound-Switch(NBSLTEPLMNRoundSwitch),NBSLTERANSharingSwitch(NBSLTERANSharingS-witch), NBSUTRANRANSharingS-witch(NBSUTRANRANSharingSwitch),



229

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

NBSGERANRANSharingS-witch(NBSGERANRANSharingSwitch)Unit: NoneActual Value Range: NBSLTEPLMNRoundSwitch,NBSLTERANSharingSwitch, NBSUTRANRANShar-ingSwitch, NBSGERANRANSharingSwitchDefault Value: NBSLTEPLMNRoundSwitch:Off,NBSLTERANSharingSwitch:Off,NBSUTRANRANSharingSwitch:Off,NBSGERANRANSharingSwitch:Off

GlobalProcSwitch

X2BasedUptENodeBCfgSwitch


LOFD-002001 /TDLOFD-002001


Meaning:Indicates whether the eNodeB automatically updatesthe configuration of neighboring cells based on themessages received over the X2 interface. Themessages include X2 SETUP REQUEST, X2 SETUPRESPONSE, and ENB CONFIGURATION UPDATE.

Turn off the switch if the eNodeB configuration dataon a network is to be modified by using theinterlocking modification function on the CME andmodifications to the parameters of a neighboringeNodeB will be updated on the local eNodeB throughmessages over the X2 interface. These parametersinclude eNodeBId, CellId, LocalCellId, CnOperator,CnOperatorTa, CellOp, PhyCellId, and DlEarfcn. Thisprevents the configuration data from being lost orabnormal during the automatic update.

This switch must be turned on if the interlockingmodification function on the CME is not used and theeNodeB configuration data on a network is to bemodified by using the automatic eNodeBconfiguration update over the X2 interface.GUI Value Range: OFF(Off), ON(On)Unit: NoneActual Value Range: OFF, ONDefault Value: OFF(Off)



230

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

GlobalProcSwitch

X2ServedCellType


None None Meaning: Indicates the type of served cells, which iscontained in protocol-defined messages exchanged inX2 Setup and eNB Configuration Update procedures.If this parameter is set to ACTIVE_CELL(ActiveCell), the serving cells include all the activated cells.If this parameter is set toCONFIGURED_CELL(Configured Cell), the servingcells include all the configured cells.GUI Value Range: ACTIVE_CELL(Active Cell),CONFIGURED_CELL(Configured Cell)Unit: NoneActual Value Range: ACTIVE_CELL,CONFIGURED_CELLDefault Value: ACTIVE_CELL(Active Cell)

eNodeBFunction

eNodeBId

ADDENODEBFUNCTIONMODENODEBFUNCTIONLSTENODEBFUNCTION

None None Meaning: Indicates the eNodeB ID defined in theservice protocol interface, which uniquely identifiesan eNodeB within a PLMN. For details, see 3GPP TS36.300.GUI Value Range: 0~1048575Unit: NoneActual Value Range: 0~1048575Default Value: 0

Cell CellId ADDCELLMODCELLLSTCELL

LBFD-002009 /TDLBFD-002009

Broadcast ofsysteminformation

Meaning: Indicates the ID of the E-UTRAN cell. Thecombination of this parameter and the eNodeB IDforms the E-UTRAN cell identity. The combination ofthe E-UTRAN cell identity and the PLMN identityforms the ECGI. For details, see 3GPP TS 36.413.GUI Value Range: 0~255Unit: NoneActual Value Range: 0~255Default Value: None



231

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

Cell LocalCellId

ACTCELLADDCELLADDCELLBANDBLKCELLDEACELLDSPCELLDSPCELLPHYTOPODSPCELLULCOMPCLUSTERDSPLIOPTRULEDSPPRIBBPADJUSTLSTCELLLSTCELLBANDMODCELLRMVCELLRMVCELLBANDRMVCELLNRT

None None Meaning: Indicates the local ID of the cell. It uniquelyidentifies a cell within a BS.GUI Value Range: 0~255Unit: NoneActual Value Range: 0~255Default Value: None



232

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

STRCELLRFLOOPBACKSTRCELLSELFTESTSTRLRTWPRTTSTSTRPRIBBPADJUSTUBLCELLDSPLRTWPRTTSTDSPPRIBBPRESINFO

Cell PhyCellId


LOFD-001051LBFD-002009 /TDLBFD-002009

CompactBandwidthBroadcast ofsysteminformation

Meaning: Indicates the physical cell ID. For details,see 3GPP TS 36.331.GUI Value Range: 0~503Unit: NoneActual Value Range: 0~503Default Value: None



233

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

Cell DlEarfcn


LBFD-002009 /TDLBFD-002009LBFD-00201801/TDLBFD-00201801LBFD-00201803/TDLBFD-00201803

Broadcast ofsysteminformationCoverage BasedIntra-frequencyHandoverCellSelection andRe-selection

Meaning: Indicates the DL EARFCN of the cell. Fordetails, see the 3GPP TS 36.104.GUI Value Range: 0~46589,54436~65535Unit: NoneActual Value Range: 0~46589,54436~65535Default Value: None

GlobalProcSwitch

X2BasedDelNcellCfgSwitch


LOFD-002001 /TDLOFD-002001


Meaning: Indicates whether to enable the eNodeB toremove external cell and neighboring cellconfigurations from neighboring cell lists (NCLs) andneighboring relation tables (NRTs) based on the ENBCONFIGURATION UPDATE message. If thisparameter is set to ON, this function is enabled. If thisparameter is set to OFF, this function is disabled. Ifboth the X2BasedUptENodeBCfgSwitch parameterand this parameter are set to ON, the eNodeB removesexternal cell and neighboring cell configurations fromNCLs and NRTs if the following conditions are met:(1) The ENB CONFIGURATION UPDATE messagereceived over the X2 interface contains the IE "ServedCells To Delete" (identified by the IE ID 27); (2) TheNo Remove attribute for the neighbor relationship isset to permit removals.GUI Value Range: OFF(Off), ON(On)Unit: NoneActual Value Range: OFF, ONDefault Value: OFF(Off)



234

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description


NoRmvFlag



AutomaticNeighbourRelation(ANR)CellOutageDetection andCompensation

Meaning: Indicates whether to permit or prohibitremoval of the neighboring relationship by ANR.GUI Value Range: PERMIT_RMV_ENUM(PermitANR Remove), FORBID_RMV_ENUM(Forbid ANRRemove)Unit: NoneActual Value Range: PERMIT_RMV_ENUM,FORBID_RMV_ENUMDefault Value: PERMIT_RMV_ENUM(Permit ANRRemove)

GlobalProcSwitch

X2SonDeleteMode


LOFD-002004 /TDLOFD-002004

Self-configuration

Meaning: Indicates the X2 automatic removal mode.If this parameter is set to ALL_FREE_MODE(All freemode), all enabled X2 automatic removal functionswork in free mode. In this mode, the eNodeB directlyremoves the X2 interfaces that are determined to beremoved. If this parameter is set toHUAWEI_FREE_OTHER_CONTROLLED(HW freeother controlled), some functions work in controlledmode. These functions refer to those controlled by thePeerReqBasedX2DelSwitch parameter, andBASED_ON_X2FAULT(Based on X2 Fault) andBASED_ON_X2USAGE_WITHOUT_NEGO(Basedon X2 Usage Without Negotiation) of theX2SonDeleteSwitch parameter. In this mode, the X2interfaces that need to be removed are reported to theU2000, and then the operators determine whether toremove the X2 interfaces.GUI Value Range: ALL_FREE_MODE(All freemode),HUAWEI_FREE_OTHER_CONTROLLED(HW freeother controlled)Unit: NoneActual Value Range: ALL_FREE_MODE,HUAWEI_FREE_OTHER_CONTROLLEDDefault Value: ALL_FREE_MODE(All free mode)



235

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

NCellPlmnList

Mcc ADDNCELLPLMNLISTLSTNCELLPLMNLISTMODNCELLPLMNLISTRMVNCELLPLMNLIST

None None Meaning: Indicates the listed mobile country code(MCC) of a neighboring cell. An MCC is a string ofthree decimal digits, each of which must be a digitranging from 0 to 9.GUI Value Range: 3 charactersUnit: NoneActual Value Range: 000~999Default Value: None

NCellPlmnList

Mnc ADDNCELLPLMNLISTLSTNCELLPLMNLISTMODNCELLPLMNLISTRMVNCELLPLMNLIST

None None Meaning: Indicates the listed mobile network code(MNC) of the listed PLMN of a neighboring cell. AnMNC is a string of two or three decimal digits, each ofwhich must be a digit ranging from 0 to 9.GUI Value Range: 2~3 charactersUnit: NoneActual Value Range: 00~99,000~999Default Value: None



236

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description


NCellClassLabel




Meaning: Indicates the neighboring cell classificationlabel. The parameter values FORMAL andEXTENDED represent different neighboring cellmanagement policies. If the number of handovers to aneighboring cell reaches a predefined threshold, theparameter is set to FORMAL for this neighboring cell;otherwise, the parameter is set to EXTENDED for thisneighboring cell.GUI Value Range: FORMAL(FORMAL),EXTENDED(EXTENDED)Unit: NoneActual Value Range: FORMAL, EXTENDEDDefault Value: FORMAL(FORMAL)

ANR NcellHoForNRTDelThd

MODANRLSTANR

LOFD-002001 /TDLOFD-002001


Meaning:Indicates a threshold for removing a neighborrelationship from an E-UTRAN NRT. When the NRTreaches its capacity and ANR needs to add a newneighbor relationship to the NRT, ANR removes anold neighbor relationship with a cell from the NRT ifthe number of handovers to this cell is less than thethreshold.





237

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description


NoHoFlag


LBFD-00201801/TDLBFD-00201801

Coverage BasedIntra-frequencyHandover

Meaning: Indicates whether handovers of UEs to theneighboring cell are prohibited.GUI Value Range: PERMIT_HO_ENUM(Permit Ho),FORBID_HO_ENUM(Forbid Ho)Unit: NoneActual Value Range: PERMIT_HO_ENUM,FORBID_HO_ENUMDefault Value: PERMIT_HO_ENUM(Permit Ho)


NoRmvFlag


LOFD-002001





238

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description


NoHoFlag


LBFD-00201802/TDLBFD-00201802LBFD-00201804/TDLBFD-00201804LBFD-00201805/TDLBFD-00201805LOFD-002012 /TDLOFD-002012

Coverage BasedInter-frequencyHandoverDistanceBasedInter-frequencyHandoverServiceBasedInter-frequencyHandoverCellOutageDetection andCompensation

Meaning: Indicates whether handovers of UEs to theneighboring cell are prohibited.GUI Value Range: PERMIT_HO_ENUM(Permit Ho),FORBID_HO_ENUM(Forbid Ho)Unit: NoneActual Value Range: PERMIT_HO_ENUM,FORBID_HO_ENUMDefault Value: PERMIT_HO_ENUM(Permit Ho)



239

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

IntraFreqBlkCell

LocalCellId

ADDINTRAFREQBLKCELLLSTINTRAFREQBLKCELLMODINTRAFREQBLKCELLRMVINTRAFREQBLKCELL

None None Meaning: Indicates the cell ID of the local cell. Ituniquely identifies a cell within an eNodeB.GUI Value Range: 0~255Unit: NoneActual Value Range: 0~255Default Value: None

IntraFreqBlkCell

PhyCellId

ADDINTRAFREQBLKCELLLSTINTRAFREQBLKCELLMODINTRAFREQBLKCELLRMVINTRAFREQBLKCELL

LBFD-002009 /TDLBFD-002009LBFD-00201801/TDLBFD-00201801

Broadcast ofsysteminformationCoverage BasedIntra-frequencyHandover

Meaning: Indicates the starting physical cell ID of theintra-frequency blacklisted cell. For details, see 3GPPTS 36.331.GUI Value Range: 0~503Unit: NoneActual Value Range: 0~503Default Value: None



240

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

InterFreqBlkCell

LocalCellId

ADDINTERFREQBLKCELLLSTINTERFREQBLKCELLMODINTERFREQBLKCELLRMVINTERFREQBLKCELL

None None Meaning: Indicates the cell ID of the local cell. Ituniquely identifies a cell within an eNodeB.GUI Value Range: 0~255Unit: NoneActual Value Range: 0~255Default Value: None

InterFreqBlkCell

DlEarfcn


LBFD-00201803/TDLBFD-00201803LBFD-00201802/TDLBFD-00201802

CellSelection andReselectionCoverage BasedInter-frequencyHandover

Meaning: Indicates the DL EARFCN of the inter-frequency blacklisted cell. For details, see 3GPP TS36.104.GUI Value Range: 0~46589,54436~65535Unit: NoneActual Value Range: 0~46589,54436~65535Default Value: None



241

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

InterFreqBlkCell

PhyCellId


LBFD-00201802/TDLBFD-00201802LBFD-00201804/TDLBFD-00201804LBFD-00201805/TDLBFD-00201805

Coverage BasedInter-frequencyHandoverDistanceBasedInter-frequencyHandoverServiceBasedInter-frequencyHandover

Meaning: Indicates the starting physical cell ID of theinter-frequency blacklisted cell. For details, see 3GPPTS 36.331.GUI Value Range: 0~503Unit: NoneActual Value Range: 0~503Default Value: None

CSFallBackPolicyCfg

CsfbHoPolicyCfg

MODCSFALLBACKPOLICYCFGLSTCSFALLBACKPOLICYCFG

LOFD-001033 /TDLOFD-001033LOFD-001034 /TDLOFD-001034LOFD-001088 /TDLOFD-001088LOFD-001089 /TDLOFD-001089

CSFallbacktoUTRANCSFallbacktoGERANCSFallbackSteeringtoUTRANCSFallbackSteeringtoGERAN

Meaning: Indicates the CSFB policy for a UE inconnected mode. If the CSFB steering function isdisabled, this parameter also applies to UEs in idlemode. The policy can be PS handover, CCO, orredirection.GUI Value Range: REDIRECTION, CCO_HO,PS_HOUnit: NoneActual Value Range: REDIRECTION, CCO_HO,PS_HODefault Value: REDIRECTION:On, CCO_HO:On,PS_HO:On



242

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

UtranNCell

NoHoFlag


LOFD-001019 /TDLOFD-001019

PS Inter-RATMobilitybetweenE-UTRANandUTRAN

Meaning: Indicates whether to allow handover of UEsto the neighboring cell that is determined by theneighboring relation.GUI Value Range: PERMIT_HO_ENUM(Permit Ho),FORBID_HO_ENUM(Forbid Ho)Unit: NoneActual Value Range: PERMIT_HO_ENUM,FORBID_HO_ENUMDefault Value: PERMIT_HO_ENUM(Permit Ho)

UtranNCell

NoRmvFlag


LOFD-002002 /TDLOFD-002002

Inter-RATANR


GeranNcell

NoHoFlag


LOFD-001020 /TDLOFD-001020

PS Inter-RATMobilitybetweenE-UTRANandGERAN

Meaning: Indicates whether handovers of UEs to theneighboring cell are prohibited.

GUI Value Range: PERMIT_HO_ENUM(Permit Ho),FORBID_HO_ENUM(Forbid Ho)

Unit: None

Actual Value Range: PERMIT_HO_ENUM,FORBID_HO_ENUM

Default Value: PERMIT_HO_ENUM(Permit Ho)

GeranNcell

NoRmvFlag


LOFD-002002

Inter-RATANR




243

16 Counters

Table 16-1 Counters

Counter ID Counter Name CounterDescription

Feature ID Feature Name

1526726995 L.HHO.IntraeNB.IntraFreq.PrepAttOut

Number of intra-eNodeB intra-frequency outgoinghandover attemptsin a cell

Multi-mode: NoneGSM: NoneUMTS: NoneLTE:LBFD-00201801TDLBFD-00201801

Coverage BasedIntra-frequencyHandoverCoverage BasedIntra-frequencyHandover

1526726996 L.HHO.IntraeNB.IntraFreq.ExecAttOut

Number of intra-eNodeB intra-frequency outgoinghandoversexecutions in a cell



1526726997 L.HHO.IntraeNB.IntraFreq.ExecSuccOut

Number ofsuccessful intra-eNodeB intra-frequency outgoinghandovers in a cell



eRANANR Management Feature Parameter Description 16 Counters


244



1526726998 L.HHO.IntraeNB.InterFreq.PrepAttOut

Number of intra-eNodeB inter-frequency outgoinghandover attemptsin a cell


Coverage BasedInter-frequencyHandoverCoverage BasedInter-frequencyHandover

1526726999 L.HHO.IntraeNB.InterFreq.ExecAttOut

Number of intra-eNodeB inter-frequency outgoinghandoversexecutions in a cell



1526727000 L.HHO.IntraeNB.InterFreq.ExecSuccOut

Number ofsuccessful intra-eNodeB inter-frequency outgoinghandovers in a cell



1526727001 L.HHO.IntereNB.IntraFreq.PrepAttOut

Number of inter-eNodeB intra-frequency outgoinghandover attemptsin a cell



1526727002 L.HHO.IntereNB.IntraFreq.ExecAttOut

Number of inter-eNodeB intra-frequency outgoinghandoversexecutions in a cell





245



1526727003 L.HHO.IntereNB.IntraFreq.ExecSuccOut

Number ofsuccessful inter-eNodeB intra-frequency outgoinghandovers in a cell



1526727004 L.HHO.IntereNB.InterFreq.PrepAttOut

Number of inter-eNodeB inter-frequency outgoinghandover attemptsin a cell



1526727005 L.HHO.IntereNB.InterFreq.ExecAttOut

Number of inter-eNodeB inter-frequency outgoinghandoversexecutions in a cell



1526727006 L.HHO.IntereNB.InterFreq.ExecSuccOut

Number ofsuccessful inter-eNodeB inter-frequency outgoinghandovers in a cell



1526727546 L.E-RAB.AbnormRel

Total number ofabnormal releasesof activated E-RABs initiated bythe eNodeB


Radio BearerManagementRadio BearerManagement



246



1526727547 L.E-RAB.NormRel Total number ofnormal E-RABreleases initiated bythe eNodeB in acell


Radio BearerManagementRadio BearerManagement

1526728398 L.IntraFreqHO.NoNRT

Number of intra-frequency handoverinitiation failuresbecause theadjacent cell is noton the NRT of thesource cell

Multi-mode: NoneGSM: NoneUMTS: NoneLTE:LBFD-00201801TDLBFD-00201801LOFD-002001LOFD-002002

Coverage BasedIntra-frequencyHandoverCoverage BasedIntra-frequencyHandoverAutomaticNeighbour Relation(ANR)Inter-RAT ANR

1526728399 L.InterFreqHO.NoNRT

Number of inter-frequency handoverinitiation failuresbecause the targetcell is notconfigured as aneighboring cell forthe source cell

Multi-mode: NoneGSM: NoneUMTS: NoneLTE:LBFD-00201801TDLBFD-00201801LOFD-002001LOFD-002002

Coverage BasedIntra-frequencyHandoverCoverage BasedIntra-frequencyHandoverAutomaticNeighbour Relation(ANR)Inter-RAT ANR

1526728468 L.IRATHO.E2W.NoNRT

Number of inter-RAT initiationfailures from E-UTRAN toWCDMA networkbecause theadjacent cell is noton the NRT of thesource cell

Multi-mode: NoneGSM: NoneUMTS: NoneLTE:LOFD-001019LOFD-002002TDLOFD-001019TDLBFD-002002LOFD-001022TDLOFD-001022

PS Inter-RATMobility betweenE-UTRAN andUTRANInter-RAT ANRPS Inter-RATMobility betweenE-UTRAN andUTRANTransport ChannelManagementSRVCC to UTRANSRVCC to UTRAN



247



1526728469 L.IRATHO.E2T.NoNRT

Number of inter-RAT initiationfailures from E-UTRAN to TD-SCDMA networkbecause theadjacent cell is noton the NRT of thesource cell


PS Inter-RATMobility betweenE-UTRAN andUTRANInter-RAT ANRPS Inter-RATMobility betweenE-UTRAN andUTRANTransport ChannelManagementSRVCC to UTRANSRVCC to UTRAN

1526728470 L.IRATHO.E2G.NoNRT

Number of inter-RAT initiationfailures from E-UTRAN toGERAN becausethe adjacent cell isnot on the NRT ofthe source cell


PS Inter-RATMobility betweenE-UTRAN andGERANInter-RAT ANRPS Inter-RATMobility betweenE-UTRAN andGERANTransport ChannelManagementSRVCC to GERANSRVCC to GERAN

1526728471 L.IRATHO.E21xRTT.NoNRT

Number of inter-RAT initiationfailures from E-UTRAN toCDMA2000 1xRTTnetwork becausethe adjacent cell isnot on the NRT ofthe source cell

Multi-mode: NoneGSM: NoneUMTS: NoneLTE:LOFD-001021LOFD-002002TDLOFD-001021TDLBFD-002002

PS Inter-RATMobility betweenE-UTRAN andCDMA2000Inter-RAT ANRPS Inter-RATMobility betweenE-UTRAN andCDMA2000Transport ChannelManagement



248



1526728472 L.IRATHO.E2HRPD.NoNRT

Number of inter-RAT initiationfailures from E-UTRAN toCDMA2000 HRPDnetwork becausethe adjacent cell isnot on the NRT ofthe source cell

Multi-mode: NoneGSM: NoneUMTS: NoneLTE:LOFD-001021LOFD-002002TDLOFD-001021TDLBFD-002002

PS Inter-RATMobility betweenE-UTRAN andCDMA2000Inter-RAT ANRPS Inter-RATMobility betweenE-UTRAN andCDMA2000Transport ChannelManagement

1526730042 L.IRATHO.E2W.NoNRT.PLMN

Number of inter-RAT handoverinitiation failuresfrom E-UTRAN toWCDMA networkbecause theadjacent cell is noton the NRT of thesource cell for aspecific operator

Multi-mode: NoneGSM: NoneUMTS: NoneLTE:LOFD-001019LOFD-002002TDLOFD-001019TDLBFD-002002LOFD-001036LOFD-001037TDLOFD-001036TDLOFD-001037LOFD-070206LOFD-001022TDLOFD-001022

PS Inter-RATMobility betweenE-UTRAN andUTRANInter-RAT ANRPS Inter-RATMobility betweenE-UTRAN andUTRANTransport ChannelManagementRAN Sharing withCommon CarrierRAN Sharing withDedicated CarrierRAN Sharing withCommon CarrierRAN Sharing withDedicated CarrierHybrid RANSharingSRVCC to UTRANSRVCC to UTRAN



249



1526730043 L.IRATHO.E2G.NoNRT.PLMN

Number of inter-RAT handoverinitiation failuresfrom E-UTRAN toGERAN becausethe adjacent cell isnot on the NRT ofthe source cell for aspecific operator

Multi-mode: NoneGSM: NoneUMTS: NoneLTE:LOFD-001020LOFD-002002TDLOFD-001020TDLBFD-002002LOFD-001036LOFD-001037TDLOFD-001036TDLOFD-001037LOFD-070206LOFD-001023TDLOFD-001023

PS Inter-RATMobility betweenE-UTRAN andGERANInter-RAT ANRPS Inter-RATMobility betweenE-UTRAN andGERANTransport ChannelManagementRAN Sharing withCommon CarrierRAN Sharing withDedicated CarrierRAN Sharing withCommon CarrierRAN Sharing withDedicated CarrierHybrid RANSharingSRVCC to GERANSRVCC to GERAN

1542455526 VS.UserPlaneHostIP.TxPkts

Number of IPpackets transmittedon the user-planelocal IP address

Multi-mode: NoneGSM:GBFD-118601UMTS:WRFD-050402LTE:LOFD-002004TDLOFD-002004

IP TransmissionIntroduction onAbis Interface

IP TransmissionIntroduction on IubInterface

Self-configuration

Self-configuration

1542455527 VS.UserPlaneHostIP.RxPkts

Number of IPpackets received onthe user-plane localIP address




Self-configuration

Self-configuration



250



1542455528 VS.UserPlaneHostIP.TxBytes

Number of bytes inthe IP Packetstransmitted on theuser-plane local IPaddress




Self-configuration

Self-configuration

1542455529 VS.UserPlaneHostIP.RxBytes

Number of bytes inthe IP Packetsreceived on theuser-plane local IPaddress




Self-configuration

Self-configuration

1542455530 VS.UserPlaneHostIP.TxMaxSpeed

Maximum transmitrate of IP Packetson the user-planelocal IP address




Self-configuration

Self-configuration

1542455531 VS.UserPlaneHostIP.TxMeanSpeed

Average transmitrate of IP Packetson the user-planelocal IP address




Self-configuration

Self-configuration

1542455532 VS.UserPlaneHostIP.RxMaxSpeed

Maximum receiverate of IP Packetson the user-planelocal IP address




Self-configuration

Self-configuration



251



1542455533 VS.UserPlaneHostIP.RxMeanSpeed

Average receiverate of IP Packetson the user-planelocal IP address




Self-configuration

Self-configuration



252

17 Glossary

For the acronyms, abbreviations, terms, and definitions, see Glossary.

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18 Reference Documents

1. 3GPP TS 32.511: "Automatic Neighbor Relation (ANR) management; Concepts andrequirements"

2. 3GPP TS 36.300: "E-UTRAN Overall description"3. 3GPP TS 36.331: "RRC Protocol specification"4. 3GPP TS 36.413: "E-UTRAN S1 Application Protocol (S1AP)"5. DRX and Signaling Control Feature Parameter Description6. Intra-RAT Mobility Management in Connected Mode Feature Parameter Description7. Inter-RAT Mobility Management in Connected Mode Feature Parameter Description8. S1/X2 Self-Management Feature Parameter Description9. RAN Sharing Feature Parameter Description

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ANR Management(eRAN8.1_02).pdf

Documents

Transcript of ANR Management(eRAN8.1_02).pdf