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3 Resource Access Measurement
DN9813745Issue 10-0 en18/03/2008
# Nokia Siemens Networks 1 (81)
BSC3153Nokia GSM/EDGE BSS, Rel. BSS13, BSC andTCSM, Rel. S13, Product Documentation, v.1
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The information in this document is subject to change without notice and describes only theproduct defined in the introduction of this documentation. This documentation is intended for theuse of Nokia Siemens Networks customers only for the purposes of the agreement under whichthe document is submitted, and no part of it may be used, reproduced, modified or transmitted inany form or means without the prior written permission of Nokia Siemens Networks. Thedocumentation has been prepared to be used by professional and properly trained personnel,and the customer assumes full responsibility when using it. Nokia Siemens Networks welcomescustomer comments as part of the process of continuous development and improvement of thedocumentation.
The information or statements given in this documentation concerning the suitability, capacity, orperformance of the mentioned hardware or software products are given as is and all liabilityarising in connection with such hardware or software products shall be defined conclusively andfinally in a separate agreement between Nokia Siemens Networks and the customer. However,Nokia Siemens Networks has made all reasonable efforts to ensure that the instructionscontained in the document are adequate and free of material errors and omissions. NokiaSiemens Networks will, if deemed necessary by Nokia Siemens Networks, explain issues whichmay not be covered by the document.
Nokia Siemens Networks will correct errors in this documentation as soon as possible. IN NOEVENT WILL NOKIA SIEMENS NETWORKS BE LIABLE FOR ERRORS IN THISDOCUMENTATION OR FOR ANY DAMAGES, INCLUDING BUT NOT LIMITED TO SPECIAL,DIRECT, INDIRECT, INCIDENTAL OR CONSEQUENTIAL OR ANY LOSSES, SUCH AS BUTNOT LIMITED TO LOSS OF PROFIT, REVENUE, BUSINESS INTERRUPTION, BUSINESSOPPORTUNITY OR DATA, THAT MAYARISE FROM THE USE OF THIS DOCUMENT OR THEINFORMATION IN IT.
This documentation and the product it describes are considered protected by copyrights andother intellectual property rights according to the applicable laws.
The wave logo is a trademark of Nokia Siemens Networks Oy. Nokia is a registered trademark ofNokia Corporation. Siemens is a registered trademark of Siemens AG.
Other product names mentioned in this document may be trademarks of their respective owners,and they are mentioned for identification purposes only.
Copyright Nokia Siemens Networks 2008. All rights reserved.
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Contents
Contents 3
List of tables 5
List of figures 6
Summary of changes 7
1 3 Resource Access Measurement 9
2 Counters of Resource Access Measurement 132.1 003000 / PAGING MESSAGES SENT TO BTS 132.2 003001 / IMMEDIATE ASSIGNMENT MESSAGES SENT TO BTS 132.3 003002 / IMMEDIATE ASSIGNMENT REJECT MESSAGES SENT TO
BTS 142.4 003003 / SMS BC REQUEST MESSAGES SENT TO BTS 152.5 003004 / CHANNEL REQUEST MESSAGES RECEIVED FROM BTS 152.6 003005 / DELETE IND MESSAGES RECEIVED FROM BTS 162.7 003006 / AVE RACH SLOT COUNT 172.8 003007 / RES ACC DENOMINATOR 1 172.9 003008 / AVE PCH LOAD ON CCCH 182.10 003009 / RES ACC DENOMINATOR 2 192.11 003010 / PEAK RACH LOAD ON CCCH 192.12 003011 / PEAK PCH LOAD ON CCCH 202.13 003012 / SUCCESS SEIZURE FOR MOBILE TERM CALL 212.14 003013 / SUCCESS SEIZURE FOR MOBILE ORIG CALL 212.15 003014 / AVE RACH BUSY COUNT 222.16 003015 / RES ACC DENOMINATOR 3 232.17 003016 / AVE RACH ACCESS COUNT 232.18 003017 / RES ACC DENOMINATOR 4 242.19 003018 / MIN PAGING BUF 252.20 003019 / SDCCH LOC UPD 252.21 003020 / SDCCH CALL RE EST 262.22 003021 / SDCCH EMERG CALL 272.23 003022 / TCH EMERG CALL 272.24 003023 / TCH MTC 282.25 003024 / TCH MOC 282.26 003025 / TCH CALL RE EST 292.27 003026 / SUCC TCH SMS EST 302.28 003027 / UNSUCC TCH SMS EST 302.29 003028 / SUCC SDCCH SMS EST 312.30 003029 / UNSUCC SDCCH SMS EST 322.31 003030 / GHOST CCCH RES 322.32 003031 / REJ SEIZ ATT DUE DIST 332.33 003032 / TRX IN EXT AREA 342.34 003033 / IMSI DETACH SDCCH 342.35 003034 / IMSI DETACH TCH 352.36 003035 / MAX PAGING BUFFER CAPA 36
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Contents
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2.37 003036 / AVE PAGING BUFFER CAPA 362.38 003037 / RES ACC DENOMINATOR 5 372.39 003038 / DELETE PAGING COMMAND 382.40 003039 / BCSU OVERLOAD LOWER LIMIT 392.41 003040 / BCSU OVERLOAD UPPER LIMIT 392.42 003041 / BCSU OVERLOAD DELETED RACH 402.43 003042 / TRX DIAGNOSTICS 402.44 003043 / TRX DIAGNOSTICS FAULT 412.45 003044 / SUCC SEIZ SUPPLEM SERV 422.46 003045 / TCH SUPPLEM SERV 422.47 003046 / AVE PCH GB LOAD ON CCCH 432.48 003047 / RES ACC DENOMINATOR 6 432.49 003048 / AVE PAGING GB BUF 442.50 003049 / RES ACC DENOMINATOR 7 452.51 003050 / MAX PAGING GB BUF 462.52 003051 / AVE PAGING LOAD AIR 462.53 003052 / RES ACC DENOMINATOR 8 472.54 003053 / AVE DRX AGCH LOAD AIR 482.55 003054 / RES ACC DENOMINATOR 9 492.56 003055 / AVE NON DRX AGCH LOAD AIR 492.57 003056 / RES ACC DENOMINATOR 10 502.58 003057 / PS PAGING MSG SENT 512.59 003058 / CS PAGING MSG SENT 522.60 003059 / CALL ASSIGN AFTER SMS 522.61 003060 / SPARE003060 532.62 003061 / SPARE003061 532.63 003062 / SPARE003062 542.64 003063 / SPARE003063 542.65 003064 / SUCC MO SMS SDCCH 552.66 003065 / UNSUCC MO SMS SDCCH 56
3 Signalling charts of Resource Access Measurement 57
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List of tables
Table 1. Measurement description of Resource Access Measurement 9
Table 2. Counters of Resource Access Measurement 9
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List of tables
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List of figures
Figure 1. Basic call without counters. 58
Figure 2. Basic call without counters (cont.). 59Figure 3. Basic call with counters. 60
Figure 4. FACCH call setup due to SDCCH congestion. 61
Figure 5. Ghost reservation. 62
Figure 6. Busy AGCH-channel. 63
Figure 7. Unsuccessful channel request. 64
Figure 8. SMS broadcast. 64
Figure 9. Mobile originating SMS on a TCH. 65
Figure 10. Mobile terminating SMS on a TCH. 66
Figure 11. Mobile originating SMS on FACCH. 67
Figure 12. Mobile terminating SMS on FACCH. 68
Figure 13. Mobile originating SMS on an SDCCH. 69
Figure 14. Mobile terminating SMS on an SDCCH. 70
Figure 15. Mobile originating unsuccessful SMS on a TCH. 71
Figure 16. Mobile terminating unsuccessful SMS on a TCH. 72
Figure 17. Mobile originating unsuccessful SMS on FACCH. 73
Figure 18. Mobile terminating unsuccessful SMS on FACCH. 74
Figure 19. Mobile originating unsuccessful SMS on an SDCCH. 75
Figure 20. Mobile terminating unsuccessful SMS on an SDCCH. 76
Figure 21. CCCH load indication. 77
Figure 22. CCCH Load Indication if GPRS is activated in BTS and other conditionsare valid. 79
Figure 23. Unsuccessful channel requests because of BCSU overload. 80
Figure 24. PS Paging in GPRS 80
Figure 25. CS Paging in GPRS. 81
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Summary of changes
Changes between document issues are cumulative. Therefore, the latestdocument issue contains all changes made to previous issues.
Changes made between issues 10-0 and 9-2
Counter table format changed.
Changes made between issues 92 and 91
The Description and Updated fields of counters 003036 and 003037modified.
Changes made between issues 91 and 9
Editorial changes.
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Summary of changes
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1 3 Resource Access MeasurementResource Access Measurement registers information on all commoncontrol channels (CCCH) of the base station controller. The recorded itemsof data comprise the number of messages sent to the Abis interface. Themessages are sorted according to message type, average load on controlchannels, and the number of traffic channel seizures for mobile originating(MOC) and terminating calls (MTC). Signalling charts are drawn with theaccuracy of message interface.
Measurement description
Table 1. Measurement description of Resource Access Measurement
Measurement
Measurement ID
Measurement abbreviation
Resource Access Measurement
3
CCCH_ACC
Product BSC
Product software release S1
Target name BTS+TRX
Measurement counters
Table 2. Counters of Resource Access Measurement
Counter Counter number
Paging messages sent to BTS 003000
Immediate assignment messages sent to BTS 003001
Immediate assignment reject messages sent to BTS 003002SMS CB request messages sent to BTS 003003
Channel request messages received from BTS 003004
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Table 2. Counters of Resource Access Measurement (cont.)
Counter Counter number
Delete indication messages received from BTS 003005
Average RACH slot counter 003006
Resource access denominator 1 003007
Average PCH load on CCCH 003008
Resource access denominator 2 003009
Peak RACH load on CCCH 003010
Peak PCH load on CCCH 003011
Success seizure for MTC 003012
Success seizure for MOC 003013
Average RACH busy counter 003014
Resource access denominator 3 003015
Average RACH access counter 003016
Resource access denominator 4 003017
Minimum paging buffer 003018
SDCCH location update 003019
SDCCH call re-establishment 003020
SDCCH emergency call 003021
TCH emergency call 003022
TCH MTC 003023
TCH MOC 003024
TCH call re-establishment 003025
Success TCH SMS establishment 003026
Unsuccessful TCH SMS establishment 003027
Success SDCCH SMS establishment 003028
Unsuccessful SDCCH SMS establishment 003029
Ghost CCCH reservation 003030
Rejected seizure attempt due to distance 003031TRX in extended area 003032
IMSI detach SDCCH 003033
IMSI detach TCH 003034
Maximum paging buffer capacity 003035
Average paging buffer capacity 003036
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Table 2. Counters of Resource Access Measurement (cont.)
Counter Counter number
Resource access denominator 5 003037
Delete paging command 003038
BCSU overload lower limit 003039
BCSU overload upper limit 003040
BCSU overload deleted RACH 003041
TRX diagnostics 003042
TRX diagnostics fault 003043
Successful seizures of SDCCHs 003044
Successful seizures of TCHs 003045
Paging load paging buffer space on Gb-interference 003046
Resource access denominator 6 003047
Average buffer occupancy percentage 003048
Resource access denominator 7 003049
Maximum buffer occupancy percentage 003050
Average CCCH load radio block occupancy paging 003051
Resource access denominator 8 003052
Average DRX AGCH 003053
Resource access denominator 9 003054
Average NON-DRX AGCH 003055
Resource access denominator 10 003056
PS paging command 003057
CS paging command 003058
Call assign after SMS 003059
Spare 003060
Spare 003061
Spare 003062
Spare 003063
Successful mobile-originated SMS establishment onan SDCCH
003064
Unsuccessful mobile-originated SMS establishmenton an SDCCH
003065
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Related topics
. Counters of Resource Access Measurement
. Signalling charts of Resource Access Measurement
. BSC Statistics Administration
. Activating and Testing BSS6037: Improved Solution for ExtendedCell
. BSC Measurement Counters Displaying Program (FOXMEA)
. Performance Measurements
. EDGE System Feature Description
. Extended Cell Range
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2 Counters of Resource AccessMeasurement
2.1 003000 / PAGING MESSAGES SENT TO BTS
Counter ID: 003000 Network element name: PAGING MESSAGES SENT TOBTS
Version: 2.1 NetAct name: PAGING_MSG_SENT
Description: Number of PAGING_COMMAND messages sent to the BTS.
Updated: When a PAGING_COMMAND message is sent to the BTS.
See figure Basic call with counters.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
2.2 003001 / IMMEDIATE ASSIGNMENT MESSAGESSENT TO BTS
Counter ID: 003001 Network element name: IMMEDIATE ASSIGNMENTMESSAGES SENT TO BTS
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Counters of Resource Access Measurement
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Version: 2.1 NetAct name: IMM_ASSGN_SENT
Description: Number of IMMEDIATE_ASSIGN_COMMAND messages sent to the BTS.
Updated: When an IMMEDIATE_ASSIGN_COMMAND message is sent to the BTS.
See figures:Basic call with countersBusy AGCH Channel
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
2.3 003002 / IMMEDIATE ASSIGNMENT REJECTMESSAGES SENT TO BTS
Counter ID: 003002 Network element name: IMMEDIATE ASSIGNMENTREJECT MESSAGES SENT TO BTS
Version: 2.1 NetAct name: IMM_ASSGN_REJ
Description: Number of IMMEDIATE_ASSIGNMENT_REJECT messages sent to the BTS.
Updated: This counter is updated when an IMMEDIATE_ASSIGNMENT_REJECT message is packedand sent to the BTS. The message can include one to four immediate assignment rejects.
The IMMEDIATE_ASSIGNMENT_REJECT message is sent to MS in the following cases:No free SDCCH.Abis interface process has no internal resources to handle the request.
See figure Unsuccessful channel request
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
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3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release: S6
2.4 003003 / SMS BC REQUEST MESSAGES SENT TOBTS
Counter ID: 003003 Network element name: SMS BC REQUEST MESSAGESSENT TO BTS
Version: 2.1 NetAct name: SMS_BC_REQ_SENTDescription: Number of SMS_BROADCAST_REQUEST messages sent to the BTS.Updated: When all 4 SMS_BROADCAST_REQUEST messages are sent to the BTS.
See figure SMS broadcast
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
2.5 003004 / CHANNEL REQUEST MESSAGESRECEIVED FROM BTS
Counter ID: 003004 Network element name: CHANNEL REQUEST MESSAGESRECEIVED FROM BTS
Version: 2.1 NetAct name: CH_REQ_MSG_RECDescription: Number of CHANNEL_REQUIRED messages received from the BTS.
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Counters of Resource Access Measurement
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Updated: When a CHANNEL_REQUIRED message is received from the BTS. These requests arerelated to CSW channels. PSW channel requests have their own counter 072082.
See figures:Basic call with countersGhost reservationBusy AGCH channelUnsuccesful channel requestUnsuccesful channel requests due to BCSU overload
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
2.6 003005 / DELETE IND MESSAGES RECEIVEDFROM BTS
Counter ID: 003005 Network element name: DELETE IND MESSAGESRECEIVED FROM BTS
Version: 2.1 NetAct name: DEL_IND_MSG_REC
Description: Number of DELETE_INDICATION messages received from the BTS.
Updated: When a DELETE_INDICATION message is received from the BTS.
See figure Busy AGCH Channel
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
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2.7 003006 / AVE RACH SLOT COUNT
Counter ID: 003006 Network element name: AVE RACH SLOT COUNT
Version: 2.1 NetAct name: AVE_RACH_SLOT
Description: Average number of the RACH slots on a CCCH.
Counter 003007 is updated along with this counter.
Updated: When the value of the RACH load is received in a CCCH_LOAD_INDICATION messagefrom the BTS during a measurement period. The new value of the RACH load is added to theprevious value, and the number of events is increased by one.
See figure CCCH load indication.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
003007: RES ACC DENOMINATOR 1
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
2.8 003007 / RES ACC DENOMINATOR 1
Counter ID: 003007 Network element name: RES ACC DENOMINATOR 1
Version: 2.1 NetAct name: RES_ACC_DENOM1
Description: Denominator of the average RACH slot number (always > 0).
Counter 003006 is updated along with this counter.
Updated: See figure CCCH load indication
Logical type: Sum Trigger type: Event Sampling interval:
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Counters of Resource Access Measurement
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Unit: Integer number Range: Example values:
Dependencies with other counters:
003006: AVE RACH SLOT COUNT
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
2.9 003008 / AVE PCH LOAD ON CCCH
Counter ID: 003008 Network element name: AVE PCH LOAD ON CCCH
Version: 2.1 NetAct name: AVE_PCH_LOAD
Description: When divided by the value of counter 003009, this counter tells the Average PCH load ona CCCH. It indicates the remaining space for Paging Commands associated with this CCCH timeslot,given as the number of additional Paging Commands that it is possible to store. The smaller thevalue, the greater the load on the PCH.
This counter is updated along with counter 003009.
Updated: Cumulatively during the measurement period every time when the latest value of the PCHload is received in a CCCH_LOAD_INDICATION message from the BTS.
See figure CCCH load indication.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
003009: RES ACC DENOMINATOR 2
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
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2.10 003009 / RES ACC DENOMINATOR 2
Counter ID: 003009 Network element name: RES ACC DENOMINATOR 2
Version: 2.1 NetAct name: RES_ACC_DENOM2
Description: Denominator of the average PCH load on CCCH (always > 0).
Counter 003008 is updated along with this counter.
Updated: See figure CCCH load indication.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
003008: AVE PCH LOAD ON CCCH
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
2.11 003010 / PEAK RACH LOAD ON CCCH
Counter ID: 003010 Network element name: PEAK RACH LOAD ON CCCH
Version: 2.1 NetAct name: PEAK_RACH_LOAD
Description: Peak value of the number of busy RACHs on a CCCH.
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Counters of Resource Access Measurement
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Updated: When the value of the RACH load received in a CCCH_LOAD_INDICATION messageexceeds the previous value of the RACH load during the measurement period.
NOTE! This RACH counter is triggered when the RX Level is above -100dBm. Other detectionmethods (like CRC or S/N) are not applied. This means that high load on RACH may occure evenwithout a significant number of CHANNEL_REQUIRED messages. For example, RACHs from differentMSs can clash and cause a high signal level, but the decoding does not find any detectable RACH.The interference causes lots of bursts that trigger the counter, but these bursts are then filtered out inthe detection.
See figure CCCH load indication.
Logical type: Max Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
2.12 003011 / PEAK PCH LOAD ON CCCH
Counter ID: 003011 Network element name: PEAK PCH LOAD ON CCCH
Version: 2.0 NetAct name: PEAK_PCH_LOAD
Description: This counter is NOT relevant.
This counter has been replaced by counter 003018 MIN PAGING BUF.
Updated:
Logical type: Trigger type: Sampling interval:
Unit: Range: Example values:
Dependencies with other counters:
003018: MIN PAGING BUF
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
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Exceptions to related standard:
Used from release: S1 Definition updated in release:
2.13 003012 / SUCCESS SEIZURE FOR MOBILE TERMCALL
Counter ID: 003012 Network element name: SUCCESS SEIZURE FOR MOBILETERM CALL
Version: 2.1 NetAct name: SUCC_SEIZ_TERM
Description: Number of successful seizures of SDCCHs for an MTC.
Updated: When an ESTABLISH_INDICATION message with paging response is received on SDCCHfrom the BTS.
See figure Basic call with counters.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
2.14 003013 / SUCCESS SEIZURE FOR MOBILE ORIGCALL
Counter ID: 003013 Network element name: SUCCESS SEIZURE FOR MOBILEORIG CALL
Version: 2.1 NetAct name: SUCC_SEIZ_ORIG
Description: Number of successful seizures for SDCCH for an MOC.
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Updated: When an ESTABLISH_INDICATION message with CM service request is received onSDCCH from the BTS.
Note that this counter is updated also in case of an SMS or Supplementary Service Requests.
See figure Basic call with counters.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
2.15 003014 / AVE RACH BUSY COUNT
Counter ID: 003014 Network element name: AVE RACH BUSY COUNT
Version: 2.1 NetAct name: AVE_RACH_BUSY
Description: Average number of busy RACHs on a CCCH.
Counter 003015 is updated along with this counter.
Updated: When the value of the RACH load is received in a CCCH_LOAD_INDICATION messagefrom the BTS during a measurement period. The number of busy RACHs is added to the previousvalue and the number of the events is increased by one.
NOTE! This RACH counter is triggered when the RX Level is above -100dBm. Other detectionmethods (like CRC or S/N) are not applied. This means that high load on RACH may occure evenwithout a significant number of CHANNEL_REQUIRED messages. For example, RACHs from differentMSs can clash and cause a high signal level, but the decoding does not find any detectable RACH.The interference causes lots of bursts that trigger the counter, but these bursts are then filtered out inthe detection.
See figure CCCH load indication.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
003015: RES ACC DENOMINATOR 3
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Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
2.16 003015 / RES ACC DENOMINATOR 3
Counter ID: 003015 Network element name: RES ACC DENOMINATOR 3
Version: 2.1 NetAct name: RES_ACC_DENOM3
Description: Denominator of the average number of busy RACHs (always > 0).
Counter 003014 is updated along with this counter.
Updated: See figure CCCH load indication.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
003014: AVE RACH BUSY COUNT
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
2.17 003016 / AVE RACH ACCESS COUNT
Counter ID: 003016 Network element name: AVE RACH ACCESS COUNT
Version: 2.1 NetAct name: AVE_RACH_ACCESS
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Description: Number of average RACH accesses on a CCCH.
Counter 003017 is updated along with this counter.
Updated: When the value of the RACH load is received in a CCCH_LOAD_INDICATION messagefrom the BTS during a measurement period. The number of RACH accesses is added to the previousvalue and the number of events is increased by one.
NOTE! This counter is updated by RACH bursts above the -100 dBm level that have passed thedetection (CRC, S/N) in the BTS.
See figure CCCH load indication.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
003017: RES ACC DENOMINATOR 4
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
2.18 003017 / RES ACC DENOMINATOR 4
Counter ID: 003017 Network element name: RES ACC DENOMINATOR 4
Version: 2.1 NetAct name: RES_ACC_DENOM4
Description: Denominator of the average number of RACH accesses (always > 0).
Counter 003016 is updated along with this counter.
Updated: See figure CCCH load indication.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
003016: AVE RACH ACCESS COUNT
Operability class:
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Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
2.19 003018 / MIN PAGING BUF
Counter ID: 003018 Network element name: MIN PAGING BUF
Version: 2.1 NetAct name: MIN_PAGING_BUF
Description: Minimum size of the paging buffer on a CCCH (Peak value of the average PCH load: thesmaller the value, the greater the load on the PCH).Updated: When the value of the PCH load with the size of the paging buffer received in aCCCH_LOAD_INDICATION message from the BTS is smaller than the previous value during ameasurement period. 0xFFFFFFFF means unknown.
See figure CCCH load indication.
Logical type: Min Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S2 Definition updated in release:
2.20 003019 / SDCCH LOC UPD
Counter ID: 003019 Network element name: SDCCH LOC UPD
Version: 2.1 NetAct name: SDCCH_LOC_UPD
Description: Number of successful seizures of SDCCHs for location update.
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Updated: When an ESTABLISH_INDICATION message with request for a location update is receivedon SDCCH from the BTS.
See figure Basic call with counters.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S2 Definition updated in release:
2.21 003020 / SDCCH CALL RE EST
Counter ID: 003020 Network element name: SDCCH CALL RE EST
Version: 2.1 NetAct name: SDCCH_CALL_RE_EST
Description: Number of successful SDCCH seizures for call re-establishment attempts.
Updated: When an ESTABLISHMENT_INDICATION message for a call re-establishment is receivedon SDCCH from the BTS. Note that this counter counts only the number of re-establisment attemptson SDCCH. Counter 057022 gives the number of SDCCH re-establishment assignments.
See figure Basic call with counters.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
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2.22 003021 / SDCCH EMERG CALL
Counter ID: 003021 Network element name: SDCCH EMERG CALL
Version: 2.1 NetAct name: SDCCH_EMERG_CALL
Description: Number of successful seizures of SDCCHs for an emergency call.
Updated: When an ESTABLISH_INDICATION message for an emergency call is received on SDCCHfrom the BTS.
See figure Basic call with counters.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
2.23 003022 / TCH EMERG CALL
Counter ID: 003022 Network element name: TCH EMERG CALL
Version: 2.1 NetAct name: TCH_EMERG_CALL
Description: Number of successful seizures of TCHs for an emergency call in FACCH call setup dueto SDCCH congestion. If the FACCH call setup is turned off, the counter value is zero.
Updated: When an ESTABLISH_INDICATION message for an emergency call is received on TCHfrom the BTS.
See figure FACCH call setup due to SDCCH congestion
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS5290: FACCH Call Setup due to SDCCH Congestion
Related to standard:
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3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release: S5
2.24 003023 / TCH MTC
Counter ID: 003023 Network element name: TCH MTC
Version: 2.1 NetAct name: TCH_MTC
Description: Number of successful seizures of TCHs for MTC in FACCH call setup due to SDCCHcongestion. If the FACCH call setup is turned off, the counter value is zero.
Updated: When an ESTABLISH_INDICATION message with a paging response is received on TCHfrom the BTS.
See figure FACCH call setup due to SDCCH congestion
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS5290: FACCH Call Setup due to SDCCH Congestion
Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release: S5
2.25 003024 / TCH MOC
Counter ID: 003024 Network element name: TCH MOC
Version: 2.1 NetAct name: TCH_MOC
Description: Number of successful seizures of TCHs for MOC in FACCH call setup due to SDCCHcongestion. If the FACCH call setup is turned off, the counter value is zero.
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Updated: When an ESTABLISH_INDICATION message with a request for CM service is received onTCH from the BTS.
See figure FACCH call setup due to SDCCH congestion
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS5290: FACCH Call Setup due to SDCCH Congestion
Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release: S5
2.26 003025 / TCH CALL RE EST
Counter ID: 003025 Network element name: TCH CALL RE EST
Version: 2.1 NetAct name: TCH_CALL_RE_EST
Description: Number of successful TCH seizures for call re-establishment attempts in FACCH callsetup due to SDCCH congestion. If the FACCH call setup is turned off, the counter value is zero.
Updated: When an ESTABLISH_INDICATION message for a call re-establishment is received on TCHfrom the BTS. Note that this counter counts only the number of re-establisment attempts on TCH.Counter 057032 gives the number of TCH re-establishment assignments.
See figure FACCH call setup due to SDCCH congestion
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS5290: FACCH Call Setup due to SDCCH Congestion
Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
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Exceptions to related standard:
Used from release: S3 Definition updated in release: S5
2.27 003026 / SUCC TCH SMS EST
Counter ID: 003026 Network element name: SUCC TCH SMS EST
Version: 2.1 NetAct name: SUCC_TCH_SMS_EST
Description: Number of SMSs successfully established on a TCH.
Updated: When an ESTABLISH_INDICATION message (mobile originating SMS) or anESTABLISH_CONFIRM message (mobile terminating SMS) is received on TCH from the BTS.
See figures:- Mobile originating SMS on a TCH- Mobile terminating SMS on a TCH- Mobile originating SMS on FACCH- Mobile terminating SMS on FACCH
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
2.28 003027 / UNSUCC TCH SMS EST
Counter ID: 003027 Network element name: UNSUCC TCH SMS EST
Version: 2.1 NetAct name: UNSUCC_TCH_SMS_EST
Description: Number of unsuccessful establishments of SMSs on a TCH.
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Updated: When establishment of SMS fails on TCH.
See figures:- Mobile originating unsuccessful SMS on a TCH- Mobile terminating unsuccessful SMS on a TCH- Mobile originating unsuccessful SMS on FACCH- Mobile terminating unsuccessful SMS on FACCH
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
2.29 003028 / SUCC SDCCH SMS EST
Counter ID: 003028 Network element name: SUCC SDCCH SMS EST
Version: 2.1 NetAct name: SUCC_SDCCH_SMS_EST
Description: Number of SMSs successfully established on an SDCCH.
Updated: When an ESTABLISH_INDICATION message (mobile originating SMS) or anESTABLISH_CONFIRM message (mobile terminating SMS) is received on SDCCH from the BTS.
See figures:- Mobile originating SMS on an SDCCH- Mobile terminating SMS on an SDCCH
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
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2.30 003029 / UNSUCC SDCCH SMS EST
Counter ID: 003029 Network element name: UNSUCC SDCCH SMS EST
Version: 2.1 NetAct name: UNSUCC_SDCCH_SMS_EST
Description: Number of unsuccessful establishments of SMSs on an SDCCH.
Updated: When the establishment of an SMS fails on SDCCH.
See figures:- Mobile originating unsuccessful SMS on an SDCCH- Mobile terminating unsuccessful SMS on an SDCCH
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
2.31 003030 / GHOST CCCH RES
Counter ID: 003030 Network element name: GHOST CCCH RES
Version: 2.1 NetAct name: GHOST_CCCH_RES
Description: Number of ghost reservations on a CCCH.
See also counter 003031.
Updated: When a ghost reservation is detected on a CCCH. This kind of random access can becaused, for example, by white noise or co-channel interference. Note that the ghosts triggering thiscounter have illegal establishment cause. Ghost accessess with legal establishment cause get onSDCCH and later fail typically causing the triggering of counter 0010075.
See figure Ghost reservation
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
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Dependencies with other counters:
003031: REJ SEIZ ATT DUE DIST
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
2.32 003031 / REJ SEIZ ATT DUE DIST
Counter ID: 003031 Network element name: REJ SEIZ ATT DUE DIST
Version: 2.1 NetAct name: REJ_SEIZ_ATT_DUE_DIST
Description: Number of seizure attempts rejected due to distance.
Counter 003030 is updated along with this counter.
Updated: When random access is rejected by the BSC because of a too long distance between theMS and BTS. This kind of random access can be caused, for example, by white noise or co-channelinterference.
See figure Ghost reservation
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
003030: GHOST CCCH RES
Operability class:
Related to feature:
BSS5280: Distance Checking in Resource Allocation
Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:
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2.33 003032 / TRX IN EXT AREA
Counter ID: 003032 Network element name: TRX IN EXT AREA
Version: 2.1 NetAct name: TRX_TYPE
Description: Normal TRX / extended TRX
0 = normal area1= extended area
Updated:
Logical type: Variable Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS6037: Extended Cell Range
Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S6 Definition updated in release:
2.34 003033 / IMSI DETACH SDCCH
Counter ID: 003033 Network element name: IMSI DETACH SDCCH
Version: 2.1 NetAct name: IMSI_DETACH_SDCCH
Description: Number of successful seizures of SDCCHs for IMSI detach.
Updated: When an ESTABLISH_INDICATION message for an IMSI detach is received on SDCCHfrom the BTS.
See figure Basic call with counters
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
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Operability class:
Related to feature:
BSS7042: Measurement Improvements
Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S7 Definition updated in release:
2.35 003034 / IMSI DETACH TCH
Counter ID: 003034 Network element name: IMSI DETACH TCH
Version: 2.1 NetAct name: IMSI_DETACH_TCH
Description: Number of successful seizures of TCHs for IMSI detach in FACCH call setup due toSDCCH congestion. If the FACCH call setup is turned off, then the counter value is zero.
Updated: When an ESTABLISH_INDICATION message for an IMSI detach is received on TCH fromthe BTS.
See figure FACCH call setup due to SDCCH congestion
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS7042: Measurement Improvements
Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S7 Definition updated in release:
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2.36 003035 / MAX PAGING BUFFER CAPA
Counter ID: 003035 Network element name: MAX PAGING BUFFER CAPA
Version: 2.1 NetAct name: MAX_PAGING_BUFFER_CAPA
Description: Maximum percent of paging buffer capacity. This counter indicates maximum pagingbuffer occupancy percentage during the reporting period. The range of this counter is 0-100% with 1%intervals.
Updated: When the value of the maximum paging buffer received in a CCCH_LOAD_INDICATIONmessage exceeds the previous value of the paging buffer during a measurement period.
See figure CCCH load indication
Logical type: Max Trigger type: Event Sampling interval:
Unit: % Range: 0-100 Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS7048: CCCH Improvements
Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S7 Definition updated in release:
2.37 003036 / AVE PAGING BUFFER CAPA
Counter ID: 003036 Network element name: AVE PAGING BUFFER CAPA
Version: 2.1 NetAct name: AVE_PAGING_BUFFER_CAPA_NUMER
Description: The sum of the average paging buffer occupancy percentages. Each time a CCCH loadreporting period ends, the occupancy percentage is calculated and reported in a CCCH LOADINDICATION message. The average is calculated with (100*N)/N(max)%, where N is the occupiedbuffer space and N(max) is the maximum buffer space during the CCCH load reporting period.
The CCCH load reporting period is the time between CCCH LOAD INDICATION message sendings.This counter stores the sum of the average paging buffer values received in CCCH LOADINDICATION messages.
Counter 003037 is updated along with this counter.
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Updated: When a CCCH LOAD INDICATION message is received from the BTS. The average pagingbuffer value is added to the previous value.
See figure CCCH load indication.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: % Range: Example values:
Dependencies with other counters:
003037: RES ACC DENOMINATOR 5
Operability class:
Related to feature:
BSS7048: CCCH Improvements
Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S7 Definition updated in release:
2.38 003037 / RES ACC DENOMINATOR 5
Counter ID: 003037 Network element name: RES ACC DENOMINATOR 5
Version: 2.1 NetAct name: AVE_PAGING_BUFFER_CAPA_DENOM
Description: Denominator of the counter 003036 AVE PAGING BUFFER CAPA (always > 0).
Counter 003036 is updated along with this counter.
Updated: When a CCCH LOAD INDICATION message is received from the BTS and the averagepaging buffer occupancy percentage is reported in the message.
See figure CCCH load indication.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
003036: AVE PAGING BUFFER CAPA
Operability class:
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Related to feature:
BSS7048: CCCH Improvements
Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S7 Definition updated in release:
2.39 003038 / DELETE PAGING COMMAND
Counter ID: 003038 Network element name: DELETE PAGING COMMAND
Version: 2.1 NetAct name: DELETE_PAGING_COMMAND
Description: Number of the delete paging commands. This counter indicates if some group-specificpaging queue becomes so full that an additional paging command cannot be stored to the buffer. Insuch a case the paging command is deleted.
The message reports the total amount of such deleted paging commands during the reporting period.
Updated: When a CCCH_LOAD_INDICATION message is received from the BTS and the pagingcommand is deleted.
See figure CCCH load indication
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS7048: CCCH Improvements
Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S7 Definition updated in release:
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2.40 003039 / BCSU OVERLOAD LOWER LIMIT
Counter ID: 003039 Network element name: BCSU OVERLOAD LOWER LIMIT
Version: 2.1 NetAct name: BCSU_OVERLOAD_LOWER_LIMIT
Description: Number of refused calls, when BCSU overload lower limit occurs. When the overloadlower limit occurs, all calls except emergency, MOC and MTC calls are refused.
Updated: When the call is refused due to BCSU overload lower limit. Each time a newCHANNEL_REQUIRED message comes from the BTS through the Abis interface, a softwareapplication in the BCSU checks the number of free message buffers in the unit. When the lower limit(more than 34 unhandled messages) is exceeded, the causes moc_data, location_update,other_cases and re_establishment will be omitted.
See figure Unsuccessful channel requests due to BCSU overload
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S7 Definition updated in release:
2.41 003040 / BCSU OVERLOAD UPPER LIMIT
Counter ID: 003040 Network element name: BCSU OVERLOAD UPPER LIMIT
Version: 2.1 NetAct name: BCSU_OVERLOAD_UPPER_LIMIT
Description: Number of refused calls, when BCSU overload upper limit occurs. When the overloadupper limit occurs, all calls are refused.
Updated: When the call is refused due to BCSU overload upper limit. Each time a newCHANNEL_REQUIRED message comes from the BTS through the Abis interface, a softwareapplication in the BCSU checks the number of free message buffers in the unit. When the upper limit(more than 53 unhandled messages) is exceeded, no causes will trigger channel reservation in theBSC.
See figure Unsuccessful channel requests due to BCSU overload
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
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Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S7 Definition updated in release:
2.42 003041 / BCSU OVERLOAD DELETED RACH
Counter ID: 003041 Network element name: BCSU OVERLOAD DELETEDRACH
Version: 2.1 NetAct name: BCSU_OVERLOAD_DELETED_RACH
Description: Number of deleted RACHs on a CCCH when the RACH load is too high and MCMU isprotected against overload.
Updated: When new RACH commands arrive to the CCCH but the maximum number of simultaneousRACH requests have already been sent to the MCMU and therefore there is no free space for anynew RACH requests and the commands are deleted. The maximum number of simultaneous RACHrequests is dynamically changed at BCSU level according to the load of the MCMU. If there are morerequests, the RACHs are deleted and this counter is triggered.
See figure Unsuccessful channel requests due to BCSU overload
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S7 Definition updated in release: S11.5
2.43 003042 / TRX DIAGNOSTICS
Counter ID: 003042 Network element name: TRX DIAGNOSTICS
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Version: 2.1 NetAct name: TRX_DIAGNOSTIC
Description: Number of the running times of TRX internal diagnostics.
Updated: When TRX internal diagnostics is started. The base station has requested the blocking ofthe TRX for diagnostics.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS8143: Runtime diagnostics and BTS alarms
Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S8 Definition updated in release:
2.44 003043 / TRX DIAGNOSTICS FAULT
Counter ID: 003043 Network element name: TRX DIAGNOSTICS FAULT
Version: 2.1 NetAct name: TRX_DIAGNOSTIC_FAULT
Description: Number of times that the TRX internal diagnostics has detected a fault.
Updated: When diagnostics is stopped after fault detection. The BTS has sent a message informingthat the diagnostics has been stopped and that a fault has been detected.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS8143: Runtime diagnostics and BTS alarms
Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S8 Definition updated in release:
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2.45 003044 / SUCC SEIZ SUPPLEM SERV
Counter ID: 003044 Network element name: SUCC SEIZ SUPPLEM SERV
Version: 2.1 NetAct name: SUCC_SEIZ_SUPPLEM_SERV
Description: Number of successful seizures of SDCCHs for supplementary service.
Updated: When an ESTABLISH_INDICATION message with CM service request and service typesupplementary service is received on SDCCH from the BTS.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S9 Definition updated in release:
2.46 003045 / TCH SUPPLEM SERV
Counter ID: 003045 Network element name: TCH SUPPLEM SERV
Version: 2.1 NetAct name: TCH_SUPPLEM_SERV
Description: Number of successful seizures of TCHs for supplementary service in FACCH call setupdue to SDCCH congestion. If FACCH call setup is turned off, the counter value is zero.
Updated: When an ESTABLISH_INDICATION message with CM service request and service typesupplementary service is received on TCH from the BTS.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
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Exceptions to related standard:
Used from release: S9 Definition updated in release:
2.47 003046 / AVE PCH GB LOAD ON CCCH
Counter ID: 003046 Network element name: AVE PCH GB LOAD ON CCCH
Version: 2.1 NetAct name: AVE_PCH_GB_LOAD_ON_CCCH_SUM
Description: Average paging buffer space on Gb-interface. The counter indicates the remaining spacefor paging commands (CS, PS) and DRX Access Grant. Smaller value means greater load on thePCH.
Counter 003047 is updated along with this counter.
Updated: When the value of the PCH Gb load is received in a CCCH_LOAD_IND message from theBTS during the measurement period. The new value of the PCH Gb load is added to the previousvalue, and the number of events is increased by one.
When CCCH_LOAD_IND message is received by BSC and GPRS support is configured on CCCH.See figure CCCH load indication if GPRS is activated in BTS and other conditions are valid.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
003047: RES ACC DENOMINATOR 6
Operability class:
Related to feature:
BSS9006: GPRS Telecom in BCSU and MCMU
Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S9 Definition updated in release:
2.48 003047 / RES ACC DENOMINATOR 6
Counter ID: 003047 Network element name: RES ACC DENOMINATOR 6
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Version: 2.1 NetAct name: AVE_PCH_GB_LOAD_ON_CCCH_DEN
Description: Denominator of average PCH Gb load on CCCH.
Counter 003046 is updated along with this counter.
Updated: See figure CCCH load indication if GPRS is activated in BTS and other conditions are valid
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
003046: AVE PCH GB LOAD ON CCCH
Operability class:
Related to feature:
BSS9006: GPRS Telecom in BCSU and MCMU
Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S9 Definition updated in release:
2.49 003048 / AVE PAGING GB BUF
Counter ID: 003048 Network element name: AVE PAGING GB BUF
Version: 2.1 NetAct name: AVE_PAGING_GB_BUF_SUM
Description: Average buffer occupancy percentage.
It is used to carry information on the load of the PCH associated with this CCCH timeslot. Thisinformation reports the paging buffer occupancy percentages within the buffer area of approximately15 seconds, in case the GPRS support is configured onto CCCH. The range of this parameter is0...100% with 1% intervals. The occupancy percentage (occupied buffer space vs. maximum space) ofpaging buffer is calculated every fourth 51-multiframe. An average is calculated from these values andreported in CCCH_LOAD_IND message.
Counter 003049 is updated along with this counter.
Updated: When the value of the average paging Gb buffer load is received in a CCCH_LOAD_INDmessage from the BTS during measurement period. The new value of the average paging Gb bufferload is added to the previous value, and the number of events is increased by one.
When CCCH_LOAD_IND message is received by BSC and GPRS support is configured on CCCH.See figure CCCH load indication if GPRS is activated in BTS and other conditions are valid
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Logical type: Sum Trigger type: Event Sampling interval:
Unit: % Range: 0 - 100 Example values:
Dependencies with other counters:
003049: RES ACC DENOMINATOR 7
Operability class:
Related to feature:
BSS9006: GPRS Telecom in BCSU and MCMU
Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S9 Definition updated in release:
2.50 003049 / RES ACC DENOMINATOR 7
Counter ID: 003049 Network element name: RES ACC DENOMINATOR 7
Version: 2.1 NetAct name: AVE_PAGING_GB_BUF_DEN
Description: Denominator of average buffer occupancy percentage.
Counter 003048 is updated along with this counter.
Updated: See figure CCCH load indication if GPRS is activated in BTS and other conditions are valid
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
003048: AVE PAGING GB BUF
Operability class:
Related to feature:
BSS9006: GPRS Telecom in BCSU and MCMU
Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
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Counters of Resource Access Measurement
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Exceptions to related standard:
Used from release: S9 Definition updated in release:
2.51 003050 / MAX PAGING GB BUF
Counter ID: 003050 Network element name: MAX PAGING GB BUF
Version: 2.1 NetAct name: MAX_PAGING_GB_BUF
Description: Maximum buffer occupancy percentage.
It is used to carry information on the load of the PCH associated with this CCCH timeslot. It is thepeak value of all values which are calculated every fourth 51-multiframe during the concernedCCCH_LOAD_IND reporting period. The range of this parameter is 0...100% with 1% intervals.
Updated: When the value of the maximum paging buffer received in a CCCH_LOAD_INDICATIONmessage exceeds the previous value of the paging buffer during the measurement period.
When CCCH_LOAD_IND message is received by BSC and GPRS support is configured on CCCH.See figure CCCH load indication if GPRS is activated in BTS and other conditions are valid
Logical type: Max Trigger type: Event Sampling interval:
Unit: % Range: 0 - 100 Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS9006: GPRS Telecom in BCSU and MCMU
Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S9 Definition updated in release:
2.52 003051 / AVE PAGING LOAD AIR
Counter ID: 003051 Network element name: AVE PAGING LOAD AIR
Version: 2.1 NetAct name: AVE_PAGING_LOAD_AIR_SUM
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Description: Average paging load on CCCH indicated by radio block occupancy for paging messages.
Radio Block Occupancy carries information on the Radio interface load in percents of the associatedCCCH timeslot. The radio block occupancy percentage for AGCH messages requiring DRX (occupiedradio blocks vs. all radio blocks during reporting period) is calculated and reported in CCCH_LOAD_IND message.
Counter 003052 is updated along with this counter.
Updated: When a CCCH_LOAD_INDICATION message is received from the BTS. The averagepaging load value is added to the previous value and the number of events is increased by one.
When CCCH_LOAD_IND message is received by BSC and phase 2 BTS or newer is supported. Seefigure CCCH load indication if GPRS is activated in BTS and other conditions are valid
Logical type: Sum Trigger type: Event Sampling interval:
Unit: % Range: 0 - 100 Example values:
Dependencies with other counters:
003052: RES ACC DENOMINATOR 8
Operability class:
Related to feature:
BSS9006: GPRS Telecom in BCSU and MCMU
Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S9 Definition updated in release:
2.53 003052 / RES ACC DENOMINATOR 8
Counter ID: 003052 Network element name: RES ACC DENOMINATOR 8
Version: 2.1 NetAct name: AVE_PAGING_LOAD_AIR_DEN
Description: Denominator of average radio interference CCCH load radio block occupancy paging.
Counter 003051 is updated along with this counter.
Updated: See figure CCCH load indication if GPRS is activated in BTS and other conditions are valid
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
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Counters of Resource Access Measurement
-
Dependencies with other counters:
003051: AVE PAGING LOAD AIR
Operability class:
Related to feature:
BSS9006: GPRS Telecom in BCSU and MCMU
Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S9 Definition updated in release:
2.54 003053 / AVE DRX AGCH LOAD AIR
Counter ID: 003053 Network element name: AVE DRX AGCH LOAD AIR
Version: 2.1 NetAct name: AVE_DRX_AGCH_LOAD_AIR_SUM
Description: Average radio interference CCCH load radio block occupancy DRX AGCH.
It is used to carry information on the Radio interface load of the associated CCCH timeslot. The rangeof this parameter is 0...100% with 1% intervals. The radio block occupancy percentage for AGCHmessages requiring DRX (occupied radio blocks vs. all radio blocks during reporting period) iscalculated and reported in CCCH_LOAD_ IND message.
Counter 003054 is updated along with this counter.
Updated: When a CCCH_LOAD_INDICATION message is received from the BTS. The average DRXAGCH LOAD AIR value is added to the previous value and the number of events is increased by one.
When CCCH_LOAD_IND message is received by BSC and phase 2 BTS or newer is supported. Seefigure CCCH load indication if GPRS is activated in BTS and other conditions are valid
Logical type: Sum Trigger type: Event Sampling interval:
Unit: % Range: 0 - 100 Example values:
Dependencies with other counters:
003054: RES ACC DENOMINATOR 9
Operability class:
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Related to feature:
BSS9006: GPRS Telecom in BCSU and MCMU
Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S9 Definition updated in release:
2.55 003054 / RES ACC DENOMINATOR 9
Counter ID: 003054 Network element name: RES ACC DENOMINATOR 9
Version: 2.1 NetAct name: AVE_DRX_AGCH_LOAD_AIR_DEN
Description: Denominator of average radio interference CCCH load radio block occupancy DRXAGCH.
Counter 003053 is updated along with this counter.
Updated: See figure CCCH load indication if GPRS is activated in BTS and other conditions are valid
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
003053: AVE DRX AGCH LOAD AIR
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S9 Definition updated in release:
2.56 003055 / AVE NON DRX AGCH LOAD AIR
Counter ID: 003055 Network element name: AVE NON DRX AGCH LOAD AIR
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Counters of Resource Access Measurement
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Version: 2.1 NetAct name: AVE_NON_DRX_AGCH_LOAD_AIR_SUM
Description: Average radio interference CCCH load radio block occupancy NON-DRX AGCH.
It is used to carry information on the Radio interface load of the associated CCCH timeslot. The rangeof this parameter is 0...100% with 1% intervals. The radio block occupancy percentage for AGCHmessages not requiring DRX (occupied radio blocks vs. all radio blocks during reporting period) iscalculated and reported in CCCH_LOAD_ IND message.
Counter 003056 is updated along with this counter.
Updated: When a CCCH_LOAD_INDICATION message is received from the BTS. The average NONDRX AGCH LOAD AIR value is added to the previous value and the number of events is increased byone.
When CCCH_LOAD_IND message is received by BSC and phase 2 BTS or the newer is supported.See figure CCCH load indication if GPRS is activated in BTS and other conditions are valid
Logical type: Sum Trigger type: Event Sampling interval:
Unit: % Range: 0 - 100 Example values:
Dependencies with other counters:
003056: RES ACC DENOMINATOR 10
Operability class:
Related to feature:
BSS9006: GPRS Telecom in BCSU and MCMU
Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S9 Definition updated in release:
2.57 003056 / RES ACC DENOMINATOR 10
Counter ID: 003056 Network element name: RES ACC DENOMINATOR 10
Version: 2.1 NetAct name: AVE_NON_DRX_AGCH_LOAD_AIR_DEN
Description: Denominator of average radio interference CCCH load radio block occupancy NON-DRXAGCH.
Counter 003055 is updated along with this counter.
Updated: See figure CCCH load indication if GPRS is activated in BTS and other conditions are valid
Logical type: Sum Trigger type: Event Sampling interval:
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Unit: Integer number Range: Example values:
Dependencies with other counters:
003055: AVE NON DRX AGCH LOAD AIR
Operability class:
Related to feature:
BSS9006: GPRS Telecom in BCSU and MCMU
Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S9 Definition updated in release:
2.58 003057 / PS PAGING MSG SENT
Counter ID: 003057 Network element name: PS PAGING MSG SENT
Version: 2.1 NetAct name: PS_PAGING_MSG_SENT
Description: This message is sent from the BSC/PCU to the BTS to request PS paging of a GPRSMS.
Updated: When a PS-PAGING COMMAND message is sent to the BTS. The MS needs to be pagedonly when it is in MM-idle state. A GPRS paging message is sent only to cells that support GPRSservices.
When a PS-PAGING COMMAND message is sent from the BSC to the BTS. See figure PS paging inGPRS
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS9006: GPRS Telecom in BCSU and MCMU
Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
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Used from release: S9 Definition updated in release:
2.59 003058 / CS PAGING MSG SENT
Counter ID: 003058 Network element name: CS PAGING MSG SENT
Version: 2.1 NetAct name: CS_PAGING_MSG_SENT
Description: This message is sent from BSC/PCU to BTS to request CS paging of a GPRS MS.
Updated: When a CS-PAGING COMMAND is sent to the BTS.
When a CS-PAGING COMMAND message is sent from BSC to the BTS. See figure CS Paging inGPRS
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS9006: GPRS Telecom in BCSU and MCMU
Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S9 Definition updated in release:
2.60 003059 / CALL ASSIGN AFTER SMS
Counter ID: 003059 Network element name: CALL ASSIGN AFTER SMS
Version: 2.1 NetAct name: CALL_ASSIGN_AFTER_SMS
Description: Number of calls started directly after an SMS on the already reserved SDCCH.
Updated: When an ASSIGNMENT REQUEST message is received directly after a successful SMS onSDCCH from the MSC.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
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Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S10.5 Definition updated in release:
2.61 003060 / SPARE003060
Counter ID: 003060 Network element name: SPARE003060
Version: 2.0 NetAct name: SPARE003060
Description: Spare
Updated:
Logical type: Trigger type: Sampling interval:
Unit: Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S10.5 Definition updated in release:
2.62 003061 / SPARE003061
Counter ID: 003061 Network element name: SPARE003061
Version: 2.0 NetAct name: SPARE003061
Description: Spare
Updated:
Logical type: Trigger type: Sampling interval:
Unit: Range: Example values:
Dependencies with other counters:
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Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S10.5 Definition updated in release:
2.63 003062 / SPARE003062
Counter ID: 003062 Network element name: SPARE003062
Version: 2.0 NetAct name: SPARE003062
Description: Spare
Updated:
Logical type: Trigger type: Sampling interval:
Unit: Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S10.5 Definition updated in release:
2.64 003063 / SPARE003063
Counter ID: 003063 Network element name: SPARE003063
Version: 2.0 NetAct name: SPARE003063
Description: Spare
Updated:
Logical type: Trigger type: Sampling interval:
Unit: Range: Example values:
Dependencies with other counters:
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Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S10.5 Definition updated in release:
2.65 003064 / SUCC MO SMS SDCCH
Counter ID: 003064 Network element name: SUCC MO SMS SDCCH
Version: 2.1 NetAct name: SUCC_MO_SMS_SDCCH
Description: Number of mobile originated SMSs successfully established on an SDCCH.
Counter 003028 is updated together with this counter.
Updated: At the same time as counter 003028 (SUCC SDCCH SMS EST) but only when ESTABLISHINDICATION message for a mobile originated SMS is received on SDCCH from the BTS.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
003028: SUCC SDCCH SMS EST
Operability class:
Related to feature:
BSS115168: CS Statistics Improvements
Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S11.5 Definition updated in release:
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2.66 003065 / UNSUCC MO SMS SDCCH
Counter ID: 003065 Network element name: UNSUCC MO SMS SDCCH
Version: 2.1 NetAct name: UNSUCC_MO_SMS_SDCCH
Description: Number of mobile originated SMSs unsuccessfully established on an SDCCH.
Counter 003029 is updated together with this counter.
Updated: At the same time as counter 003029 (UNSUCC SDCCH SMS EST) but only whenESTABLISH INDICATION message for a mobile originated SMS is received on SDCCH from the BTS.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
003029: UNSUCC SDCCH SMS EST
Operability class:
Related to feature:
BSS115168: CS Statistics Improvements
Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S11.5 Definition updated in release:
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3 Signalling charts of Resource AccessMeasurement
The following figures show the signalling charts of Resource AccessMeasurement:
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Signalling charts of Resource Access Measurement
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Figure 1. Basic call without counters.
BSC:MS: BTS: MSC:
PagingPaging commandPaging request
Channel requestChannel required
Channel activation
Immediate assign
SetupSetup
Call proceeding Call proceeding
Assignment requestPhysical context request
Physical context confirm
Channel activation
Channel activation ack
Assignment command
Ua
Sabm Establish indication
Ua
Assignment complete Assignment complete
Rf channel release
Rf channel release ack
Identification requestIdentification request
Identification response Identification response
Encryption command
Paging part
Radio access part on CCCH
Channel activation ack
Immediate assign command
Sabm Establish indication Paging response
Authentication requestAuthentification request
Authentification response
SDCCH signalling part
DDCH establishment part
TCH seized, FACCH signalling part
Ciphering mode command
Ciphering mode complete
Authentication response
Ciphering mode command
Ciphering mode complete
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Figure 2. Basic call without counters (cont.).
Alert Alert
Connect Connect
Connect ackConnect ack
Release complete
Clear command
Clear complete
Channel release
Deactivate SACCH
Ua
Release indication
Rf channel release
Rf channel release ack
Disconnect Disconnect
ReleaseRelease
Release complete
BSC:MS: BTS: MSC:
Disc
Conversation phase
Release by MS
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Signalling charts of Resource Access Measurement
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Figure 3. Basic call with counters.
BTS: MSC:MS: BSC:
PagingPaging command
Paging request
Channel request
Channel required
Channel activation
Channel activation ack
Immediate assign
SabmEstablish indication
Paging responseUa
Paging part
Paging messages sent to BTS003000
Radio access part on CCCH
Channel request messagesreceived from BTS
003004
Immediate assign command
Immediate assignment messagesent to BTS003001
DDCH establishment part
SDCCH signalling part
TCH seized, FACCH signalling part
Conversation phase
Release by MS
Success seizure for MTC003012
or Success seizure for MOC003013
or SDCCH location update003019
or SDCCH call re-establishment003020
or SDCCH emergency call003021
or IMSI detach SDCCH003033
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Figure 4. FACCH call setup due to SDCCH congestion.
BTS:MS: BSC: MSC:
Sabm
Establish indication
Paging response
Ua
Radio access part on CCCH
Paging part
DDCH establishment part
TCH signalling part
Conversation phase
Release by MS
TCH emergency call003022
orTCH MTC003023
orTCH MOC003024
orTCH call re-establishm.
003025or
IMSI detach TCH003034
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Signalling charts of Resource Access Measurement
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Figure 5. Ghost reservation.
Counter 003031 is updated if distance verifying is activated in the resourceallocation feature and the channel request is rejected due to the distancebetween the MS and BTS.
Ghost
Channel required
BSC:MS: MSC:BTS:
Radio access part on CCCH
Paging part
Rej seiz att due dist
003031
GHOST CCCH reservation
003030
Channel request messages
received from BTS
003004
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Figure 6. Busy AGCH-channel.
Channel required
Channel activation
Channel request
Delete indication
MS: BSC: MSC:BTS:
Radio access part on CCCH
Paging part
Channel activation ack
Immediate assign command
Immediate assignmentmessages sent to BTS
003001
Delete indication messagesreceived from BTS
003005
Channel request messagesreceived from BTS
003004
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Signalling charts of Resource Access Measurement
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Figure 7. Unsuccessful channel request.
Figure 8. SMS broadcast.
Channel required
Channel request
BSC:MS: MSC:BTS:
Radio access part on CCCH
Paging part
Immediate assignment reject
Channel request messagesreceived from BTS
003004
Immediate assignment rejectmessages sent to BTS
003002
BSC:MS: MSC:BTS:
SMS broadcast request
SMS broadcast request
SMS broadcast request
SMS broadcast request
SMS CB request messagessent to the BTS
003003
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Figure 9. Mobile originating SMS on a TCH.
Cp data
Cm serv req
Ua (SAPI = 3)
Sabm (SAPI = 3)
Establish indication
Cp data
Cp ack Cp ack
Cp data Cp data
Cp ackCp ack
Cm serv req
Cm serv ackCm serv ack
BSC:MS: MSC:BTS:
Active call
Successful TCH SMS003026
Active call continuous
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Signalling charts of Resource Access Measurement
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Figure 10. Mobile terminating SMS on a TCH.
Cp data
Establish request
Sabm (SAPI = 3)
Ua (SAPI = 3)
Establish confirm
Cp data
Cp ack Cp ack
Cp data Cp data
Cp ackCp ack
BTS: MSC:MS: BSC:
Active call
Active call continuous
Successful TCH SMS003026
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Figure 11. Mobile originating SMS on FACCH.
MS starts SMS by sending SABM with SAPI = 3
SMS release
Cp ack
Cp ack
Cp data
Cp data
Cp ack
Cp ack
Cp data
Establish indication
Sabm (SAPI = 3)
FACCH call setup
Ua (SAPI = 3)
Instead of sending SETUP -message,
Cp data
BSC:MS: MSC:BTS:
Successful TCH SMS003026
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Signalling charts of Resource Access Measurement
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Figure 12. Mobile terminating SMS on FACCH.
Establish request
MSC starts SMS by sending CP DATA -message
SMS release
Cp ack
Cp ack
Cp data
Cp data
Cp ack
Cp ack
Cp data
Establish confirm
Ua (SAPI = 3)
FACCH call setup
Sabm (SAPI = 3)
Instead of sending SETUP -message,
Cp data
BTS: MSC:MS: BSC:
Successful TCH SMS003026
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Figure 13. Mobile originating SMS on an SDCCH.
Cp data
Ua (SAPI = 3)
Sabm (SAPI = 3)
Establish indication
Cp data
Cp ack Cp ack
Cp data Cp data
Cp ackCp ack
BTS: MSC:MS: BSC:
Instead of sending SETUP -message,
Connection is set up as in normal MOC
S