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COPYRIGHT © 2013 ALCATEL-LUCENT. ALL RIGHTS RESERVED. ALCATEL-LUCENT — INTERNAL PROPRIETARY — USE PURSUANT TO COMPANY INSTRUCTION
1
9959 Network Performance OptimizerProduct Overview
31 July 2014
� Introduction� NPO Overview, Architecture & KeyFeatures� NPO HW Configurations� NPO Input Data & Import Scheme� NPO Client PC Pre-Requisites
� NPO User Operations & Functions� NPO Analysis Desktop & Light Web Client (no Java)� Fixed/Dynamic Clusters Sites Definition� QoS Counters/Indicators, QoS Views/Reports & QoS Alerters� Logical Parameters, Events, Tuning & Diagnosis
AGENDA
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COPYRIGHT © 2013 ALCATEL-LUCENT. ALL RIGHTS RESERVED. ALCATEL-LUCENT — INTERNAL PROPRIETARY — USE PURSUANT TO COMPANY INSTRUCTION
� Logical Parameters, Events, Tuning & Diagnosis� Cells Geographical Representation
NPO in brief
• Converged RAN
- All Radio Access technologies, ePC
• Field proven
- More than 100 customers worldwide
- Relevant OPEX reduction
Ultimate Wireless Packet Core
GERAN
GPRS, EDGEE-UTRAN
LTE, TD LTEUTRAN
UMTS, HSPASmall Cells
QoS Informationrecovering
Tuning
30%10%45% saved
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COPYRIGHT © 2013 ALCATEL-LUCENT. ALL RIGHTS RESERVED. ALCATEL-LUCENT — INTERNAL PROPRIETARY — USE PURSUANT TO COMPANY INSTRUCTION
• High Definition QoS
- Per call/per device/per subscriber (Via LTE PCMD or WCDMA call trace)
- SON enablers
Resourceconfiguration
Analysis /diagnostic
30%30%20%
15%
15%
5%
Excellence in Performance High Definition QoS Multi-standard
NPO HP-Small NPO HP-Medium
12,000 cells
HP DL380 G7 2 CPU /72Gb RAM / 12 SAS 300Gb HD /
12 SAS 600 Gb HD (D2600)
48,000 cells
HP DL580 G7 4 CPU /
256 Gb RAM / 48* SAS 600Gb
+ 1 auxiliary server for QoS loading
HP DL380 G7 2 CPU /36Gb RAM / 12 SAS 300GbHD
NPO HP-XLarge
3,000 cells
HP DL380 G7 1 CPU / 36Gb RAM /12 SAS 300Gb HD
D2600
DL380
DL380
DL5801,500 cells
NPO HW Configurations
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DL380
DL380
DL380
DL380
D2600
D2600
D2600
D2600
D2600 DL5801,500 cells
If WCT/PCMD option is activated
(smaller capacity but without any additional hardware)
+ 1 auxiliary server for WCT/PCMD
option
HP DL380 G7 2 CPU /36Gb RAM / 12 SAS 300GbHD
+ 2 auxiliary servers for WCT/PCMD
HP DL380 G7 2 CPU /36Gb RAM / 12 SAS 300GbHD
New platforms based on proven performance-leading Intel x86 CPUs
NPO Analysis Desktop (PC Java needed):
� Cluster/CellsZone definition
� QoS Data Customization: Counters/Indicators & Reports
� Scheduling reports
� QoS Alerters
� User preferences
� Events & Parameters
� Rules Checking & Tuning Sessions
� Diagnosis
NPO Web Client (no Java needed):
NPO KeyFeatures
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NPO Web Client (no Java needed):
� QoS analysis by Indicators & Reports
NPO Administration:
� Create users and assign profiles
� NPO processes
� Import RASTER maps
� Detailed/Log Viewer
NPO Cartography:
� Cartographic display
� Thematic Layers
NPO PCMD (optional):
� PCMD Browser and RealTime web interfaces
� PCMD Localization with Google Map (LR13.3)
NPO NUART (optional):
� Unavailability / Outages statistics
� Degradations detection
9959 NPO KPIs
QoS reports
QoS alerts
Diagnosis results
Statistics and trends
Resource Monitoring
Report builder
Geographical information systemEngineering
Geographical information
Own Metrics
NPO Input/Output Data Type
Customization Data
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e-NodeB BSCBTSNodeB RNC MME
Call history.Measureme
ntsConfiguration Data
Alarms
P-GW
Availability statistics
Parameter Tuning
Diagnosis engine
Engineering Rules
Automatic Import Data
Output Data
Light Web ClientFull Client app(Analysis Desktop)
PCMD BrowserPCMD Real TimeIndicators & ReportsEditor
NPO Components
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DiagnosisRule checking,
Events,Parameters tuning
Geographical representationNetwork
Unavailability
QoS Alerters
NPO License per each (sub)Component
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5620-SAM
9959 NPO QoS-PM
M5 NPO
PCMD/1minTopo &
Alarms/dailyMME1
eNB1
eNBn
PM files: /storage/var/spool/mi/pmPCMD files: /storage/pcmd
PM/15min
PM/15min
PM/15min
SGW/PGWPM/15min
NPO Import PM/PCMD/Alarms
PCMD/1min
PCMD/1min
HSS
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MMEn
eNB1
eNBm
NPO PCMD/NUARTM5 NPO
Client (java 1.6)
NPO imports the SAM topology every midnight.
NPO imports the MME-PCMD files every 1 min
from all MMEs.
PM files: /storage/var/spool/mi/pmPCMD files: /storage/pcmd(no intermediate SAM server for
MME-PCMD files)
••
PCMD/1min
PM/15min
PCMD/1min
NPO Main/AUX
NPO QoS-PM(General KPI Indicators / 15 min load)
through SAM to get all eNBs/MMEs/SGW/PGW - PM files
measurements
NPO PCMD
(Troubleshoot KPI indicators / 1 min load)
Directly from MMEs
NPO NUART (Stability/Availability KPI Indicators / daily load)
Through SAM-O
PCMD ACTIVATION on eNBs/MMEs:PM Files on eNBs/MMEs:LASER Files on eNBs (Alarms/Events)
NPO Import PM/PCMD/Alarms
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PCMD Activation on MME (with its web interface):1) Login the MME CNFG node 2) Choose the "PCMD Configuration" in the left menu. Open it in the Central Panel.3) Choose the "update" in Actions option. Click Update.
PCMD Activation on eNB (by SAM):1) Choose eNB in SAM, right click to select [Property] 2) In ENB Base Configuration, click [Property] 3) In “Components” tab, select eNB instance and expand ActivationService / “ActivationService id” 4) Double-click on “ActivationService id” and set “isPCMDEnabled”=true.
By default activated on eNBs/MMEs with SAM policy.Collected by SAM each 15 min.Requires SAM Preparations.
(Alarms/Events)
Requires SAM Preparations:- SAM-O license activated- oss_client/oss_group on SAM- lteran policy
Identify the high runner(s) UEs/Vendors
high runner(s)
NPO Import Follow-Up – eNB PM files
Every 15min import
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Lost eNB PM files can be caused by:-eNB reset/outage/ReachabilityProblem or problems with S1 transport => SAM alarm raised: missedStatsCollection.-related PM policy = stopped on SAM or even SAM server is not available.- NTP synchro lost between eNBs/Sam/NPO
NPO Import Follow-Up – ALARMS files
Daily import
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State Change shows the SAM alarms import (ENBDown, LTECellDown, ReachabilityProblem). If 0, no NUART indicators values. Alarms/Events shows the eNB events/alarms. If 0, no events are imported => difficult to identify the root cause of an outage.Topology show the SAM snapshot files import. Hardware Inventory column is not implemented in LTE.
More details about State Change import issues in NPO server: /alcatel/muse/data/trace/LTESamData*.traces
Open the Control Panel => JavaSet Java => Network Settings => Proxy as Direction Connection (mandatory setting)
•Clear Java cache•Remote temporary Java files
For Internet Browser, disable the Block Pop-up option.Example for Mozilla Firefox (that option is not selected):
Check that Firefox Add-Ons has Java activated:
NPO AD Pre-Requisites: PC Java Settings & PC Profile Memory
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If NPO AD doesn’t start, switch to MEDIUM memory profile for your PC:⇒ Click on the user name – already logged in.⇒ Select second option (by default, is MAX option)
� Introduction� NPO Overview, Architecture & KeyFeatures� NPO HW Configurations� NPO Input Data & Import Scheme� NPO Client PC Pre-Requisites
� NPO User Operations & Functions� NPO Analysis Desktop & Light Web Client (no Java)� Fixed/Dynamic Clusters Sites Definition� QoS Counters/Indicators, QoS Views/Reports & QoS Alerters� Logical Parameters, Events, Tuning & Diagnosis
AGENDA
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� Logical Parameters, Events, Tuning & Diagnosis� Cells Geographical Representation
Drag and Drop
NPO Analysis Desktop (AD): Complete GUI
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Drag and Drop
2 reportDrop zones
Propagation
Network
objectsFunctions
Cartography, Diagnosis,
Modes
NPO AD: Simplified GUI
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Executed
View
Cartography, Diagnosis,
Tuning Session & Reports
Auto-refresh
Excel Export
NPO AD: Simplified GUI / Views
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Excel Export
NPO Web Client: Views (PC w/o Java)
Network elements
https://<NpoMain_IP_addr>:8443/maat/webclient
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Function: view template
Output: tabular/ graphical chart
NPO AD: Preparing a View Template
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Drag and Drop
You can change the user display by font type ,font size, TZ, show deleted objects or not, shortcuts to add cells into reports, default chart format, adjacencies links color, allow interpolation, etc.
NPO AD: User Preferences
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Typical KPIs Dashboard for Network Performance
PM RRC Connection Setup Success Rate 99.41% 99.25% 99.55% 99.85% 99.93% 97.81% 98.23% 99.15%
PM RRC Connection Blocking Rate 0.00% 0.00% 0.02% 0.05% 0.00% 0.00% 0.00% 0.01%
PM ERAB Initial Setup Success Rate 99.44% 99.49% 99.28% 99.37% 99.72% 99.24% 99.22% 99.39%
PM S1 Connection Estab. Success Rate 99.42% 99.70% 99.41% 99.20% 98.37% 96.57% 97.89% 98.65%
PM UE Context Setup Success Rate 99.44% 99.49% 99.28% 99.37% 99.72% 99.24% 99.22% 99.39%
PM ERABs All Drop Rate 0.13% 0.39% 0.12% 0.14% 0.15% 0.29% 0.15% 0.20%
PM UEs Context Drop Rate 0.39% 0.54% 0.19% 0.30% 0.19% 0.59% 0.20% 0.34%
PM Total HO Success Rate [%] 96.93% 95.16% 97.07% 96.43% 98.50% 97.86% 96.82% 96.97%
PM S1-Interface Handover Success Rate [%] 98.28% 98.40% 98.26% 98.40% 98.02% 93.74% 95.42% 97.22%
PM X2-Interface Handover Success Rate [%] 99.41% 99.25% 99.55% 99.85% 99.93% 97.81% 98.23% 99.15%
PCMD Tracking Area Update Fail Rate [%] 0.15% 0.13% 0.33% 0.43% 0.81% 1.55% 0.26% 0.52%
PCMD Paging No Response Rate [%] 0.13% 0.23% 0.48% 0.44% 0.91% 1.35% 0.21% 0.54%
PM DL MIMO Ratio [%] 33.18% 43.10% 28.18% 35.77% 33.82% 47.18% 21.18% 34.63%
PM DL RLC Retransmission Rate [%] 1.18% 2.13% 1.17% 1.16% 1.15% 1.17% 1.16% 1.30%
PCMD DL HARQ Retrans Rate [%] 0.18% 0.13% 0.17% 0.16% 0.15% 0.17% 0.16% 0.16%
Past 7
days
ACCESSIBILITY
RETAINABILITY
MOBILITY
QUALITY
11/4KPI / eNB_clusterKPI ClassNPO 11/711/1 11/2 11/3 11/5 11/6
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PCMD DL HARQ Retrans Rate [%] 0.18% 0.13% 0.17% 0.16% 0.15% 0.17% 0.16% 0.16%
PM DL Block Error Rate [%] 0.18% 0.53% 0.17% 0.56% 0.15% 0.57% 0.16% 0.33%
PM UL Block Error Rate [%] 0.78% 0.83% 0.70% 0.65% 0.15% 0.57% 0.96% 0.66%
PM Avg RRC Connected per AllCells 11.4 11.3 17.5 13.7 9.2 10.3 11.2 12.1
PM Max RRC Connected Users 19 22 32 25 28 16 18 22.9
PM DL RLC Traffic Volume [GB] 26.75 18.24 51.87 46.71 59.58 47.50 23.92 39.22
PM UL RLC Traffic Volume [GB] 24.81 13.73 25.61 24.18 39.19 32.71 11.32 24.51
PM Peak DL Throughput [kbit/s] 23,456 27,656 23,456 27,656 23,456 27,656 27,656 25,856
PM Peak DL Throughput >5Mbps Ratio [%] 32.18% 25.53% 73.17% 54.56% 23.15% 67.57% 12.16% 41.19%
PM Peak UL Throughput [kbit/s] 13,436 7,656 3,456 7,856 9,456 8,656 5,656 8,025
PM Peak UL Throughput >5Mbps Ratio [%] 7.18% 5.53% 3.17% 4.56% 2.15% 6.57% 1.16% 4.33%
PCMD Avg UE Attach Duration [msec] 980 785 1024 947 969 983 997 955
PCMD Avg UE Auth Duration [msec] 234 250 243 247 252 255 258 248
PCMD Avg UE Service Request Duration [msec] 190 212 202 205 198 199 218 203
NUART Avg Global Availability per eNB [%] 100.000% 99.939% 100.000% 100.000% 100.000% 99.805% 99.521% 99.895%
NUART Avg Unplan Availability Rate per eNB [%] 100.000% 100.000% 100.000% 100.000% 100.000% 99.984% 99.990% 99.996%
NUART Avg S1 Transport Downtime Rate per eNB 0.00% 0.00% 0.00% 0.00% 0.00% 0.10% 0.32% 0.06%
NUART Avg X2 Downtime Rate per eNB 0.00% 0.00% 0.00% 0.00% 0.00% 0.05% 0.07% 0.02%
STABILITY
QUALITY
CAPACITY
LATENCY
KPIs Availability Domains
� Measurements Constraints� Some measurements are present only per Cell (RSRP/RSRQ, HARQ & Avg RLC Tput)� Some measurements are present only per eNB (CPU/RAM, Transport, Alarms, S1/X2 traffic)� Some measurements are present only per MME (Attach, Paging, TAU, Auth, Bearers).
� NPO-PCMD has extended domains per many indicators (Paging, TAU, Auth, HARQ) also at CELL/IMSI levels.
� Solution is to use the MultiNET option.� Create cellzone(s), eNB object zone(s)
& MME Pools� Drag-drop them on MultiNET basket.
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Typical KPIs Dashboard for Network Performance
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KPIs Analysis Domains – by PM /PCMD / NUART
KPI Class Default Indicators / PM Data Additional Indicators / PCMD Data Stability NUART Data
Accessibility RRC Cnx Success/Fail Rate -
RRC Cnx Blocking CAC Fail Rate -
ERAB Setup Success/Fail Rate -
S1AP Estab Success/Fail Rate - check S1CINTERFACE_SOU_available_rate
UE Context Setup Success/Fail Rate Initial Attach, UE/HSS Authentications, PDN conn
Capacity RRC Connected Avg -
RRC Connected Tmax -
Retainability ERAB Context Drop Rate per QCIx UE Context Releases: Normal/Abnormal
Radio Link Failures per cell UE Context Releases: root causes details check CELLLTE_SOU_available_rate
UE Context Release: IRAT Redirection, RLF,
User Inactivity, Congestion
Mobility all Intra-Inter eNB/MME/SGW HO HO Interruption Time Distribution (daily/cell) check CELLLTE_SOU_available_rate
Cell reselections HO Succ/Fail per every adjacency
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Cell reselections HO Succ/Fail per every adjacency
RRC ReEstablishments Setup
Paging/TAU per MME Paging/TAU per cell/cellzone/eNB/MME
RADIO MIMO Eligibility DL MIMO/TxDiv ratio per UE scheduled
Quality Modulation: QPSK/QAM16/QAM64 ratio RSRP/RSRQ/RTD Distribution (daily)/cell
Modulations/Trans. mode (MIMO, TxDiv) RF Vector Matrix - RSRP/RSRQ & RSRP/RTD
BLER/HARQ/RLC Retransmissions BLER/HARQ per cell/IMSI
UL Noise Interferences
UL Power Headroom
Tput DL/UL RLC Throughput per cell DL/UL RLC Throughput per IMSI
Traffic DL/UL RLC Traffic Volume per cell DL/UL RLC Traffic Volume per IMSI
Analysis High runner cells Breakdown CELL -> IMSI
Breakdown CELL -> UE Vendor (iPhone, Samsung)
No eNB PM files loaded (due eNB isolated) check ENODEB_LOS_unavailable_rate
KPIs – Linear Trend Evolution
Right click on chart and choose
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and choose Dynamic Trends
Trend of AvgConnected userswith DL traffic .
KPIs – Dynamic Trend Evolution with Sliding Window
Right click on chart and choose
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and choose Dynamic Trends
Trend of AvgConnected userswith DL traffic .
NPO Dashboard
Since LR13.1: entire network dashboard
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dashboard
Busy Hours Topic
Busy Hours is the period of day when there is
- Max/Intensive RLC traffic (downtown between 8:00 – 18:00)
- Many nb of users per cell (near a stadium)
- Many HOs in a short time – closing the stadium game
Detection of the Busy Hours
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- Max Hour Position
Execution of Indicator at the Busy Hours
Busy Hours – Identify Max Hour Position for All RLC Traffic
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NPO / Hourly RRC Connected State Tmax
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NPO / RRC Connected State Tmax at RLC Traffic Busy Hours
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RRC Connected State Tmax at
Busy Hours for all RLC Traffic.
Daily monitoring with NPO allow to detect issues/degradation on the network
• Once a failure type is detected with QoS-PM, investigation is required by:
- Checking if the issue is due to a single/few cells or if it’s all over the network
- Identifying the time period of the degradation
- Breakdown (per UE/vendor) to a specific failure cause (Initial Attach Reject Failed)
NPO Monitoring Guidelines
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Further troubleshooting can be done with NPO-PCMD (or NPO-NUART)
- PCMD allows a breakdown to a specific UE type or IMSI.
Example: UE Context Drop Rate has a higher value on Nokia Lumia 920.
- NUART useful to correlate degradations seen with alarms raised at that time (e.g. eNB SW upgrade, cell = locked, eNB/CEMx is down, etc). Example: maintenance tasks on a given site can create a high HO failure rate.
NPO includes a functionality called CellZone/ObjectZone to define a cluster/market of cells or eNBs - which allows user to check QoS Indicators, Reports, etc.
Static Cellzone having a fix number of cells
Dynamic Cellzone having an Indicator condition:
RRC cnx succ rate < 98%
NPO Clusters Definition
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Variable number of cells in this Cluster
Dynamic Cellzone-2 quickly identified the 3 worst sites.
QoS Indicators with Thresholds: Quick Problem Detection
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CELLLTE_SOU_supp_unavailabile_rate with thresholds:Example: <0.05% - green, <0.1% - yellow, <0.2% - orange, >=0.2% red
Drag and Drop
Auto SelectOf Interesting
Objects
• They are defined to detect QoS problems and generate QoS alarms, depending on reported eNB Performance Measurement data.
NPO QoS Alerters
QoS Alerters are used to highlight no data import or dense urban areas with no
traffic.
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• Variation detection (taking into account average values) at 15 min granularity.
• Resulting QoS alert is integrated into SAM active alarm flow.
NPO QoS Alerters
QoS Alerters based on this indicator: no RRC/S1AP/HO.
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QoS Alerter topology
cells/eNBs list.
NPO QoS Alerters
QoS Alerters list & definition.
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QoS Alerter status.
View
Report Indicators or
• NPO is natively provided with a rich set of views so you have notto create new views in NPO
• More than 120 views for LTECell and 180 views for the MME are
NPO AD: Reports Content
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View
Report Indicators or parameters
the MME are available !!!
• If there are not exactly the required views you can modify an existing views.
Mono-Obj. Evolution
• It is the evolution of one Network Object (MME, LTECell) in function of the time.
Multi-Obj. Comparison
• It is the comparison of several Network Object in a fixed window of observation
Week21Week22Week23Success rate comparison between Cell1, 2 and 3
Cell1 Cell2 Cell3
NPO AD: Types of Reports
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Evolution of the Success rate for Cell1
Week21Week22Week23Success rate comparison between Cell1, 2 and 3 for the Week 22
Warning
• Specific TopN report where each view is filtered according to its filtering indicator and sorted according to its sorting indicator.
Warning Reports Top N
Filtering onvariation Value
Best / Worst
Filtering oncolor Value
Additional function allows to detect eNB SW changes
NPO AD: Events
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This function allows to detect eNB parameters changes
NPO AD: Parameters Change
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ModifiedParam
This function checks the activation of some features with operational values.
NPO AD: Rules
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Modification of network parameters and create the Work order file (like WiPS).
WorkOrder file is sent to SAM (to be applied / double-checked with WiPS).
SAM server location: /opt/5620sam/server/nms/activation/wo_import
NPO AD: Tuning Sessions
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• Diagnosis are useful to diagnose and provide a solution to network problems
• Trigger can be linked to:
• Indicators (Diagnosis)
• Parameters (Complex Rules)
• Diagnosis results can be:
• No problem found ( )
NPO AD: Diagnosis
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• No problem found ( )
• Unknown ( )
• Problem found ( )
Import a RASTER map (with local city/market) in NPO Cartography and drag-drop the cells on the map based on chosen thematic layer (colorized model).
NPO AD: Geographical Representation
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Capacity & Mobility
L1/L2 Traffic and Throughput
RRC connection
UE context managementX2
NPO Counters Families
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SCTP / S1 Transport
Paging
MME
SGW
Counter Highlights:
• Periodically (each GP – Granularity Period of 5mn, 15mn, 30mn, 1h), a network element generates a PM XML file (Performance Management file in xml format) – SAM collects all the XML files from all network elements.
- Network elements are eNodeB, MME, MI, S-GW and P-GW
- 15mn GP is the recommended value (NPO capacity for 5min will decrease due to storage increase)
• PM XML file:
NPO Counters
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• PM XML file:
- Contain counter names and values
- Counters are compliant with 3GPP standard (TS 32.404)
- PM XML file is based on GMT time
- If processed manually, local time zone shift must be applied to have it on local time
- In NPO counters are available with local time.
A counter is specified with:
• Name: follows 3GPP format (TS 32.404) and is present in PM XML file (ex: RRC.ConnEstab.Cause)
• Reference identity: used by NPO mainly to have better process performances
• Type: Cumulative, Discrete Event Registration (or VALUE) and Load
• Unit: KiBytes, kbits/s, %, Packet, Event, Bearer, User
A counter can be:
NPO Counters
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A counter can be:
• A simple counter. The reference identity is LCXyyyyy.
- Ex: VS.RrcConnectionSuccessSum (LC12302)
• A subcounter. The reference identity is LCXyyyyy_zz.
- Ex:
- VS.RrcConnectionRequest.EmergencyCallAttempts (LC12311_0), VS.RrcConnectionRequest.HighPriorityAccessAttempts (LC12311_1)
Mobility
X2 Traffic and Throughput
NPO Indicators Families & Storage Duration
Storage Duration:
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Storage Duration:
• The periodicity for indicators is 5mn, 15mn, 30mn, 1h, 1day, 1week, 1month
• History kept per periodicity is:
- Periodicity <=1hour � 32 days in the past
- Periodicity Day � 400 days
- Periodicity week � 14 months
- Periodicity month � 36 months
Indicator Highlights:
• NPO processes PM XML file to extract the counters values (also called raw data) => each counter is associated to one basic indicator
• Indicators are specified with a name and reference identity
• From NPO point of view, there are 2 types of indicators:
- Stored indicators: Counter with a different set of temporal/spatial aggregation => NPO stores those values in the database
NPO Indicators
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- Calculated indicators: these indicators are formula of indicators and are computed “On Live” (never stored)
• Each basic indicator has its associated spatial and temporal aggregation method
• NPO has predefined indicators (system indicators updated for each ALU LTE SW release)
• Any rate indicator can apply thresholds.