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KPI Overview
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KPI overview3G RANOP RU20
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KPI Overview
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Course Content
KPI overviewPerformance monitoringAir interface and neighbor optimizationCapacity improvementTraffic managementPaging and inter-RNC optimization
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KPI Overview
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KPI overviewPrinciples of 3G network optimizations
Principles of performance measurements and KPI classification
Examples for KPI construction- KPI Factors- Call Setup Failure Rate, - Call Setup success rate- Blocking Rate, - Call Drop Rate, - HO Failure Rate
Reporting suites- Classes of counters,- main existing KPI
Appendix- examples of statistics
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KPI Overview
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Module Objectives
Describe 3G RAN main classification and principles of optimization
List measurements & KPIs & proposed target value to them
Describe the affecting network performance counters
Describe the content in RU20 reporting suite
At the end of the module you will be able to:
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KPI Overview
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Principles of 3G network optimizationOptimization strategy
Quality & Key Performance
Performance
indicators
RAN
parameters
counters
(OSS/NetAct)
RRM/Field/installation Cell CoverageCell Capacity
Radio/Signaling
capabilities
TRANSMISSION
capacity
CORE/Mobility
performance
HW
(Capability)
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KPI Overview
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Principles of 3G network optimization
Target issues for optimizations are to Target issues for optimizations are to ……
assume coverage and capacity RAN improvements by tuning of interference situations within networks
Therefore check RRM to ensure the RAN offers:
- planned coverage for each targeted service- Calculate high capacity i.e. low blocking (new calls, handovers)Observe NW performance by overall counters (NetACT, RNC counters)Define quality indicators and compare KPI’s by triggering pointsCheck overall Quality of Service (QoS) at – RAN, transmission and core- Optimize the use of available capacity (priorities)
By continuously monitoring/adjusting how the available resources are used in accordance with user requests !
Optimization strategy
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KPI Overview
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Principles of 3G network optimization
Key performance indicators (KPI) improvementsKey performance indicators (KPI) improvements
Performance evaluationevent/Action item
CAUSEIndex/level/thresholds
COUNTERDescriptive statistics
KeyPerformance indicationSignaling/Traffic: RT/NRTRRC/RAB/CORE
COUNTERstatistics
3G CausesVendor issue Evaluations
Uu; WBTS, AAL2, RNC
IndicationKPI
Index/level/ thresholds
event/Action item/improvement
No activities
Optimisation/hystereticSignaling/user plane
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Principles of 3G network optimization
Operator define several KPIs:
DCR
handover success rate 98 %,
blocking rate 2 %
% of samples having FER > 5%
Operator “Features & SW” reports statistics by vendor MML commands (WBTS, RNC) evaluated byAccessibility, Retainability, Usage, Mobility, Integrity (BLER)In addition reporting and monitoring by probes
Tools:
Equipment plus planning tools e.g. NetAct (NSN)
Quality benchmark
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%100*)___..(___)__..(_____
attemptssetupcallallgeeventsallofNumbersetupscallsuccessfulgeresultdesiredwitheventsofNumberKPI =
KPI counts events:• Does not evaluate performance
• No/limited qualitative analysis
• Does not discuss statistical errors
• Arithmetic mean only
• No scatter
Principles of 3G network optimization
KPI – definition & principle
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KPI Overview
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The KPIs to be monitored from the RAN could be:
• Cell availability
• Call Setup Success Rate (CSSR)
• Call Drop rate
• SHO/ISHO/HSPA SCC success rate
• Packet Session setup/success rate (NRT, HSDPA, HSUPA)
In NOLS:
• RNC counter description
• NetAct DB description for RNC measurements
• WCDMA RAN Key Performance Indicators
• Key Indicator Changes
• Measurement Changes
Principles of 3G network optimization
KPI – definition & principle
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KPI Overview
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1. Detect fault based by counters
2. Check documentation of NED
3. Compare and evaluate KPI listing (Excel data or/and KPI)
4. Link/Evaluate RAN Parameter
5. Check situation within call flow situation at signaling plane
6. See OSS or/trace results at interfaces e.g. Iub/Iu
10/)1121][Re(_)( −= ircTotalWbPwuudBmiRTWPLoad related = Received Total Wideband Power (KPI)
M1000C0 … C9
Example: Detect incremented countersExample: Detect incremented counters
Search counters
Average Uplink R99 Load
Detect increment counters out of KPI, due to UL faultsDetect increment counters out of KPI, due to UL faults
average ( sum(M1000C0 * M1000C1 + M1000C2*M1000C3 + M1000C4 * M1000C5 + M1000C6 * M1000C7+ M1000C8 * M1000C9) / (M1000C1 + M1000C3 +M1000C5 + M1000C7 + M1000C9)) dBmRAN KPI formula
KPI strategy: Scenario descriptions
Principles of 3G network optimization
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KPI strategy: Scenario descriptions
•• Use counter tables from NED/PDF dictionaryUse counter tables from NED/PDF dictionary
•• Move to RAN Parameter and/or EXCEL dataMove to RAN Parameter and/or EXCEL data
•• Match KPI and tune RAN parameterMatch KPI and tune RAN parameter
Principles of 3G network optimization
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•• Use counter tables from NED/PDF dictionaryUse counter tables from NED/PDF dictionary
RNC radio network part counter RNC radio network part counter # 1xxx# 1xxx
RNC ATM /TP part counter RNC ATM /TP part counter # 5xx/8xx# 5xx/8xx
WW--BTS part counter/BTS part counter/ # 5xxx# 5xxx
HSPA/CQI HSPA/CQI
KPI strategy: Scenario descriptions
Principles of 3G network optimization
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Example of new counters for RU20
Separate counters for relocation
Counters- where to find ?
RNC ATM/TP RNC ATM/TP part counter part counter
# 500/800# 500/800
groupegroupe
IuB
RNC radio network RNC radio network part counter # part counter # 1000 group1000 group
WW--BTS part counter/BTS part counter/
# 5000 group # 5000 group HSPA/CQIHSPA/CQI
Counters- where to find ?
RNC ATM/TP RNC ATM/TP part counter part counter
# 500/800# 500/800
groupegroupe
IuB
RNC radio network RNC radio network part counter # part counter # 1000 group1000 group
WW--BTS part counter/BTS part counter/
# 5000 group # 5000 group HSPA/CQIHSPA/CQI
Source RNC Target RNCMore detailedmonitoring of SRNS relocations relocation counters
- in-coming/outgoing new counters
- new existing Service Level (M1001)
measurement
• Separate counters for relocation
• Channel Element utilisation in WBTS
• RAB bit rate counters
• Ethernet QoS monitoring for BTS
• New updated KPIs
• New counters per RRM feature
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KPI Overview
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Thank You !
KPI overview
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KPI Overview
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KPI overviewPrinciples of 3G network optimizations
Principles of performance measurements and KPI classification
Examples for KPI construction- KPI Factors- Call Setup Failure Rate, - Call Setup success rate- Blocking Rate, - Call Drop Rate, - HO Failure Rate
Reporting suites- Classes of counters,- main existing KPI- examples of statistics
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Counter and KPI functions/issues
Principles of performance measurements
The RAN KPI can be classified into the following categories :
• Accessibility
• Retainability
• Usage
• Mobility
• Integrity (BLER) BS
RNC 3G MSC
3G SGSN
GGSN Firewall
FMT
GPRS Backbone
Internet
PS data
server
PSTN
CS data serverModem
RAN KPI
RAN KPI Classification
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RU20 New Counters and Measurements
Id M easurementM513 STM-1 interface M514 IMA logical interface M516 SONET/SDH Protection Group M528 ATM layer performance M529 ATM Virtual Path Connection M530 ATM Virtual Channel ConnectionM531 ATM Route LoadM532 ATM In terfaceM546 SAAL signalling at UNI M547 AAL5 protocol in DMXM548 AAL2 signalling protocol at UNI M549 AAL5 protocol in chorusM550 AAL2 path CAC resourceM552 AAL2 signalling at NNIM553 AAL2 Scheduling Perform ance in RNCM563 TCP/IP ProtocolM592 Unit load M594 WAC overload controlM608 Availab ility perform ance M609 DSP Service statisticsM612 DSP state changes measurementM615 DSP resource utilizationM617 DSP load measurementM800 AAL2 Resource Reservation M801 Iu-PS Perform anceM802 SW License Key controlled CapacityM803 RNC_RTP_RTCP, IP based Iu-CSM804 RNC IP CAC, IP based IU
Platform measurementsId M easurementM1000 Cell resourceM1001 Service levelM1002 TrafficM1003 L3 signalling at IuM1004 L3 signalling at IurM1005 L3 signalling at IubM1006 RRC signallingM1007 Soft handoverM1008 Intra-system hard handoverM1009 L3 relocation signallingM1010 Inter-system handoverM1011 Location servicesM1012 Service area broadcastM1013 Autodef SHOM1014 Autodef IFHOM1015 Autodef ISHOM1016 RCPM OLPCM1017 RCPM RLCM1018 RCPM UEQM1020 A-GPS Server InterfaceM1021 Iupc InterfaceM1022 Packet CallM1023 Cell ThroughputM1024 RCPM OLPC W CEL m easurementM1025 RCPM OLPC RNC measurementM1026 RCPM RLC W CEL measurementM1027 RCPM RLC RNC measurementM1028 AutoDef SHO DSRM1031 WBTS Resource
RNW measurements
New RU10 MeasurementNew RU20 MeasurementNew RU20 Counters
Id M easurem entM5000 HSDPA in W BTSM5001 WBTS HW ResourceM5002 Cell Throughput W BTSM5003 Frame Protocol WBTSM5101 FTM PDH InterfaceM5102 FTM SDH InterfaceM5105 FTM ATM InterfaceM5106 FTM ATM VC ConnectionM5107 FTM ATM VP ConnectionM5110 FTM Ethernet LinkM5113 FTM Pseudowire MPLSM5114 FTM PSN Tunnel IPM5115 FTM AAL2 Scheduling PerformanceM5116 FTM Tim ing over Packet MeasurementM5117 FTM IP statistics measurementM5118 FTM PHB statist ics measurement
Id M easurem entM5201 AXC PDHM5202 AXC SDHM5203 AXC IMA groupM5204 AXC IMA linkM5205 AXC ATM InterfaceM5206 AXC ATM VC ConnectionM5207 AXC ATM VP ConnectionM5208 AXC AAL2 performanceM5209 AXC AAL5 performanceM5210 AXC Ethernet linkM5211 AXC Sonet/SDH protection groupM5212 AXC ATM PerformanceM5213 AXC Pseudowire MPLS measurementM5214 AXC PSN Tunnel IPM5215 AAL2 scheduling perform ance in BTSM5216 AXC Timing over Packet MeasurementM5217 AXC IP StatisticsM5218 AXC PHB statistics
WBTS measurements
AXC measurements
Only yellow are covered in the slideset
RCPM means Radio Connection Performance Measurement
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No activation neededRAN1713Ethernet QoS Monitoring in BTS
RU20Feature NumberPerformance monitoring
Activation of the required licenseRAN1509RAB Bit Rate Counters
Activating RAN1311: Position Information in Subscriber Trace ReportRAN1311Position Information in Subscriber Trace Report
Activation of the required licenseRAN1312Channel Element Utilization in WBTS
No activation neededRAN1136Separate Counters for Outgoing Relocations
New PM features in RU20New PM features in RU20
Principles of performance measurements
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KPI Overview
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Principles of performance measurements
New RU20 features
Dual Iub for Ultrasite WCDMA BTSRAN1633
New FeatureRAN
Power Saving Mode for BTS RAN955
Broadcast of A-GPS Assistance DataRAN876
HSPA 72 Users Per CellRAN1686
Continuous Packet Connectivity RAN1644
HSDPA 64QAM RAN1643
Flexible RLC (DL) RAN1638
HSUPA 2 ms TTI RAN1470
Fractional DPCH RAN1201
LTE interworkingRAN2067
Dual-Cell HSDPA 42MbpsRAN1906
Multiple BSIC Identification RAN1758
CS Voice Over HSPA RAN1689
MIMO RAN1642
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Principles of performance measurements (1/2)
Poor CSSR could be a result of• Poor coverage or dominance or interference issues in Radio interface• Capacity issues in Radio or Iub interface• Configuration issues in WBTS (parameters or HW)CSSR is essentially RRC Setup Success * RAB Setup Success(or successful PS session setups in case of PS call)
CSSR covers all the steps from the initial RRC connection request from the UE to the network, through the RRC setup phase and the RAB setup phase, and until user data is starting to get transferred.
The CSSR formulas are for different traffic classes like: • CS voice calls (RNC 565 f)• CS video calls (RNC 566e)• PS RT Streaming Calls (RNC 575 d) • PS NRT Calls (Interactive & Background) (RNC 576d)
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Principles of performance measurements (2/2)
CSSR KPI for CS voice from end user perspective (RNC 565f)
RRC request repetitions done by UE after RRC reject are excluded from denominator (not necessarily seen as failures from the user's perspective)
• Emergency calls re-directed to GSM layer are excluded from denominator
The occurred cell re-selections are subtracted both from the numerator and denominator because they are not considered as call attempts from mobile end-user point of view. The UE has made a new RRC connection via another cell and Attempts-counter is updated in the new cell for the new attempt.
))____(
)____((*
)_________
_______
_______
______
______(
)____
_______
____
______
______((*100
_VOICECSATTSTPRABsum
VOICECSCOMPACCRABsum
CALLEMERGREJSTPCONNRRCCONVMTRELACCRRC
CONVMORELACCRRCEMERGENCYRELACCRRC
EMERGENCYREPATTRRCCONVMTREPATTRRC
CONVMOREPATTRRCATTSCALLEMERGENCY
ATTSCALLCONVMTCATTSCALLCONVMOCsum
CONVMTRELACCRRC
CONVMORELACCRRCEMERGENCYRELACCRRC
FAILSCALLEMERGENCYATTSCALLEMERGENCY
FAILSCALLCONVMTCATTSCALLCONVMTC
FAILSCALLCONVMOCATTSCALLCONVMOCsum
CSSRAMR
−−−−
−−−+
+−
−−−+−+
−
=
RRC part RAB part
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_CE MAX_AVAIL M5001C0
_CE MIN_AVAIL M5001C1
CEAVE_AVAIL_ M5001C2
E_DLMAX_USED_CM5001C3
CE_UL MAX_USED_ M5001C4
E_DLMIN_USED_C M5001C5
CE_UL MIN_USED_ M5001C6
E_DLAVG_USED_C M5001C7
E_ULAVG_USED_C M5001C8
In memory of counter #In memory of counter #
RNC radio network part counter RNC radio network part counter # 1xxx# 1xxx
RNC ATM /TP part counter # 5xx/8xx
WW--BTS part counter/BTS part counter/ # 5xxx# 5xxx
HSPA/CQI HSPA/CQI
Counter scenario description within network elements
Principles of 3G network optimization
M5001 WBTS Baseband processing
M1005 L3 on IuB at RNCM1005C0 : RL_STP_ATT_FOR_FIRST_RL
M1005C5 : RL_STP_SUCC_FOR_FIRST_RL
M1005C179: SETUP_FAIL_FIRST_RL_MISC
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KPI Overview
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Thank You !
KPI overview
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KPI Overview
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KPI overviewPrinciples of 3G network optimizations
Principles of performance measurements and KPI classification
Examples for KPI construction- KPI Factors- Call Setup failure rate, - Call Setup success rate- Blocking Rate, - Call Drop Rate, - HO Failure Rate- Statistic examples
Reporting suites- Classes of counters,- main existing KPI- examples of statistics
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Examples for KPI construction - factorsFactors affecting KPI
IMPACT of network
performance
BTS, RNC, PS Core, CS Core
performancePerformance of UE and field measurement tools
Quality of network
implementation Application servers, IP Backbone
performanceQuality of network operation and maintenance
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Many factors and network elements can affect the network performance. Here are some of the main examples:
• Quality of network equipment, both hardware and software – BTS, RNC, PS Core, CS Core and transmission equipment
• Performance of UE and field measurement tools – inter-operability, sensitivities of measurement parameters, level of accuracy
• Quality of network planning and optimization – coverage, interference, parameter tuning, capacity dimensioning
• Quality of network implementation - site and network equipment installation, integration and commissioning
• Quality of network operation and maintenance
• Multi-vendor environment – Application servers, IP Backbone
• Measurement method – test setup, service dependent, cluster or system level, area type (dense urban, urban, suburban, rural).
Examples for KPI construction - factorsFactors affecting KPI
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UE SensitivityUE Sensitivity
Impact on different performance by each UE
Examples for KPI construction - factors
Server
RNCW-
BTS
UE
UE Measurement UE Measurement performance performance ((cell_DCHcell_DCH, cell , cell reselection, ISHOreselection, ISHO
Power control Power control
(RACH process)(RACH process)
SRNC SRNC relocation relocation support, Cell support, Cell FACH/PCH FACH/PCH performanceperformance
UE power UE power consumptionconsumption
UE power UE power spikingspiking
Cell reselection/Cell reselection/
inter RAT cell reselectioninter RAT cell reselection
Throughput (during SHO)Throughput (during SHO)
Data throughputsData throughputs
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The functionality of different UEs are not similar, there are differences in
• Power control (RACH process)
• SRNC relocation support
• Cell FACH/PCH performance
• Cell reselection/inter RAT cell reselection
• Throughput (during SHO)
• UE power consumption
• UE power spiking
• UE Measurement performance (cell_DCH, cell reselection, ISHO)
• UE Sensitivity
• Data card throughputs
The malfunctioning of certain UEs will naturally cause drops in setup of active phase
UE impact on performance
Examples for KPI construction - factors
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BTSUE RNC CN
RRC: RRC connection Request
RRC: RRC connection Setup
RRC SETUP phase
(Resource Reservation in RNC)
RRC ACCESS phase
(RNC waits for Reply from UE)
RRC: RRC connection Setup Complete
RR
C S
etup
time
RRC: Initial Direct Transfer
RANAP: Initial UE Message
RANAP: Iu Release Command
UE-CN Signalling
(E.g. RAB Establishment and Release)
RRC: RRC connection Release
RRC: RRC connection Release Complete
Release RRC resources in RNC, BTS, Transport
RRC ACTIVE phase
RRC ACCESS fails if the UE does not reply to RRC: RRC CONNECTION SETUP message with the RRC: RRC CONNECTION SETUP COMPLETE message in given time, if the BTS reports a radio link synchronisation failure or in an RNC internal failure occurs
RRC SETUP fails if some of the needed resources (RNC, BTS, AIR, Transport) are not available. When an RRC setup failure occurs the RNC sends an RRC: RRC CONNECTION REJECT message to UE
RRC ACTIVE fails when an interface related (Iu, Iur , Iub, or Radio) or RNC internal failure occurs, and the failure causes the release of the RRC Connection. When an RRC active failure occurs, the RRC send a RANAP: IU RELEASE REQUEST to all involved CNs and waits for RANAP: IU RELEASE COMMAND message (s)
RRC ACTIVE release cause can be either ISHO, IFHO, SRSN relocation or pre-emption
KPI construction - Call Setup Failure RateRRC Connection Setup & Access and Active negative
RA
B e
stab
lish
men
t
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KPI construction - call setup failure rate
sum ( RAB failure counters)
sum ( RAB failure counters + RAB active Complete)RAB failure rate = 100 % *
Call Completion drop rate - CDR
sum ( RAB failure counters)
sum ( RAB failure counters + RAB active Complete)
CCSR = 100 % - 100 % *
CCSR for a specific service is calculated based on RAB Counters:
In NSN Nokia RAN there are negative counters used to get success ratio:
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Call Setup Success Rate (CSSR)
entsestablishmRABvoiceforattempts
entsestablishmRABvoicesuccessful
setupsconnectionvoiceRRCforattempts
setupsconnectionvoiceRRCoffailures
setupsconnectionvoiceRRCforattempts
CSSRAMR____
___*
_____
_____
_____
_
−
=
Service level count (AMR)
CSSR = RRC CSSR = RRC setupsetup SR * SR * RAB RAB setupsetup SRSR
RRC: RRC connection Request
RRC: RRC connection Setup
UE RNC
+
CoreUE
Both setup
must be successful
RRC: RRC connection Setup
Complete
CM: Service Request
RANAP RAB assignment procedure
between core and RNC
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UERRC: Connection Request
RRC Connection Setup phaseResource Reservation in RNC, BTS, Transmission
RRC: RRC Connection Request Setup
RRC Connection Access phase RNC waits reply from UE
RRC: RRC Connection Completed
RRC: Initial Direct Transfer cm service request
RANAP: Initial UE MessageDIRECT TRANSFER (Call
Proceeding)RANAP: RAB Assignment
Request
RRC: Radio Bearer Set-up
RRC: Radio Bearer Setup Complete
RAB Connection Setup phaseResource Reservation in RNC, BTS, Transmission
RANAP: RAB Assignment ResponseDIRECT TRANSFER (Alerting)
BTS RNC CN
DIRECT TRANSFER (Connect)DIRECT TRANSFER (Connect
Acknowledge)
RAB Connection Access phase RNC waits reply from UE
Call Set-up Success
Rate
Call Set-up Time
Definition RRC - RAB
KPI construction - call setup success rate
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))____(
)____((*
)_________
_______
_______
______
______(
)____
_______
____
______
______((*100
_VOICECSATTSTPRABsum
VOICECSCOMPACCRABsum
CALLEMERGREJSTPCONNRRCCONVMTRELACCRRC
CONVMORELACCRRCEMERGENCYRELACCRRC
EMERGENCYREPATTRRCCONVMTREPATTRRC
CONVMOREPATTRRCATTSCALLEMERGENCY
ATTSCALLCONVMTCATTSCALLCONVMOCsum
CONVMTRELACCRRC
CONVMORELACCRRCEMERGENCYRELACCRRC
FAILSCALLEMERGENCYATTSCALLEMERGENCY
FAILSCALLCONVMTCATTSCALLCONVMTC
FAILSCALLCONVMOCATTSCALLCONVMOCsum
CSSRAMR
−−−−
−−−+
+−
−−−+
−+−
=
RRC part
RAB part
KPI construction - call setup success rateAMR CSSR
UE RNC
relation
RNCUE
RRC RRC setupsetup RAB RAB setupsetup
from end user perspective (RNC 565f)
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sallocationDCHPSforattempts
sallocationDCHPSsuccessfulSSSRPS
____
____ =
RAB established
PS decides about Cell_DCH or Cell_FACH
Service level evaluations (PS/Release 99)
KPI construction – packet call setup success rate
Packet Call: SSSR - Rel99
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Packet Call: SSSR – HSPA
Service level evaluations (PS/Release 5/6/7)
KPI construction – Rel 99 & HSPA
HSDPA AccessibilityHSDPA Accessibility
Successfully establishments: Successfully establishments:
Cell_DCHCell_DCH statesstates
HSHS--DSCH statesDSCH states
HSHS--DSCH + EDSCH + E--DCH statesDCH states
RNC
Iub
WBTSMAC-hs
Uu
UE
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PSbyselectionsDSCHHSentsestablishmDSCHHSityaccessibilHSDPA ___
__ −−=
PS decides to allocate HS-DSCH
But HS-DSCH really established ?HSDPA Accessibility
Service level evaluations (Traffic measurement)
KPI construction – HSDPA accessibility (1/2)
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%100
ERS_BGR)X_HSDPA_USDCH_SEL_MA4761002 ERS_INTX_HSDPA_USDCH_SEL_MA4751002
TAL_BGR_IUB_HS_TOSETUP_FAIL M1002C425CH_BGR_BTS_HS_DSSETUP_FAIL M1002C424
H_BGR_UE_HS_DSCSETUP_FAIL M1002C423CH_BGR_RNC_HS_DSSETUP_FAIL M1002C421
TAL_INT_IUB_HS_TOSETUP_FAIL M1002C417CH_INT_BTS_HS_DSSETUP_FAIL M1002C416
H_INT_UE_HS_DSCSETUP_FAIL M1002C415CH_INT_RNC_HS_DSSETUP_FAIL M1002C413
H_RET_BGRREJ_HS_DSC M1002C402H_RET_INTREJ_HS_DSC M1002C401
ERS_BGRX_HSDPA_USDCH_SEL_MA M1002C476ERS_INTX_HSDPA_USDCH_SEL_MA M1002C475
RCH_FLOW_BGALLO_HS_DS M1002C389TCH_FLOW_INALLO_HS_DS M1002C385
RCH_FLOW_BGALLO_HS_DS M1002C389TCH_FLOW_INALLO_HS_DS M1002C385605_ ⋅
++++++
++++
++++
+++=
CMCM
bRNC
Setup failures
Rejections (radioresources, toomuch HSDPA users
Service level evaluations (Traffic measurement)
KPI construction – HSDPA accessibility (2/2)
Successful establishment
• The accessibility of all started allocations for HS-DSCH for NRT Traffic from user point of view
• The number of times when HS-DSCH channel has been established divided by the number of times when HS-DSCH channel has been selected by cell specific PS
• Also the times that HS-DSCH channel selection fails due to UE and the times the HS_DSCHwould have been selected but the number of possible HS-DSCH users were exceeded are included in the formula
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failurestoduereleasesHSDPAreleasesHSDPAnormalreleasesHSDPAnormal
ratesuccesssessionHSDPA______
_____
+=
ratedropsessionHSDPAratesuccesssessionHSDPA ___1___ −=
Service level evaluations (Traffic measurement)
KPI construction – HSDPA Retainability
%100
SCH_BGR_FAIL_HS_DEL_ALLO_RLM1002C482R SCH_INT_FAIL_HS_DEL_ALLO_RLM1002C479R
SCH_BGRH_FAIL_HSDEL_ALLO_OTM1002C411RSCH_INTH_FAIL_HSDEL_ALLO_OTM1002C408R
H_BGRORM_HS_DSCREL_ALLO_N M1002C410 H_INTORM_HS_DSCREL_ALLO_N M1002C407
H_BGRORM_HS_DSCREL_ALLO_N M1002C410 H_INTORM_HS_DSCREL_ALLO_N M1002C407609_ ⋅
+++++
+++=aRNC
HSDPA HSDPA RetainabilityRetainability (HSDPA only)(HSDPA only)
Current RNC_609a HSDPA Retainability for NRT Traffic
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Current RNC_609a HSDPA Retainability for NRT Traffic. The normal transition from HS-DSCH to FACH/DCH are considered as a normal HS-DSCH release (including transitions due to mobility and pre-emption)
The fallbacks and other possible normal release counters are not separately included in the formula, as they are already included in the Normal release counters
Failure classified into two categoriesFailure classified into two categories
•• Radio link failureRadio link failure
•• Other failureOther failure
Service level evaluations (Traffic measurement)
KPI construction – HSDPA Retainability
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−−
−
+++
++
+++
=
T_CELL_D_ALLO_INHS_E_REQ_D M1022C217R_CELL_D_ALLO_BGHS_E_REQ_D M1022C218
-R_CELL_D_ALLO_STHS_E_REQ_DT_CELL_D_ALLO_INHS_D_REQ_D M1022C220
R_CELL_D_ALLO_BGHS_D_REQ_D M1022C221-R_CELL_D_ALLO_STHS_D_REQ_D
-RSCH_DCH_BGPS_ATT_HSD M1022C6+TSCH_DCH_INPS_ATT_HSD M1022C5
RESCH_DCH_STPS_ATT_HSDGRSCH_EDCH_BPS_ATT_HSD M1022C4
+NTSCH_EDCH_IPS_ATT_HSD M1022C3TRESCH_EDCH_SPS_ATT_HSD GRS_D_ALLO_BHS_D_REQ_H M1022C26
+NTS_D_ALLO_IHS_D_REQ_H M1022C25 TRES_D_ALLO_SHS_D_REQ_H+
GRS_D_ALLO_BHS_E_REQ_H M1022C24 +NTS_D_ALLO_IHS_E_REQ_H M1022C23
TRES_D_ALLO_SHS_E_REQ_HGRS_E_ALLO_BHS_E_REQ_H M1022C21
+NTS_E_ALLO_IHS_E_REQ_H M1022C21 TRES_E_ALLO_SHS_E_REQ_H
e[%]Perspectiv User from Ratio Success SetupHSDPA RNC_914c
D = DCH, E = E-DCH UE want to get at least
HS-DSCH R5 resource
Service level evaluations (PS/Release 5/6)
KPI construction – packet call setup success rate
Packet Call: SSSR – HSDPA allocation
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Cell resource/ cell actual availability
KPI construction - Call Blocking Rate
( )( )DBRNWINEXISTWCELLAVAILsum
STATEWOINWCELLAVAILsumtyAvailabiliCell
_____
____*100_ =
This replace old Cell Availability KPI
based on Code Tree
Working state
CPICH of cell is visible
SC, RSCP... can be measuredRNC_183c Cell Availability KPI counts Cell availability from useRNC_183c Cell Availability KPI counts Cell availability from user point of view:r point of view:
Due to introduction of RAN955 Power Saving Mode for BTS
new official note was added. New official note informs that the
duration of power saving mode is included in the duration of
the working state.
RNC_183c, Cell Availability
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M1000C178 AVAILABILITY WCELL IN WORKING STATE
• # of samples when WCELL is in WO State. Counter M1000C180 is always updated along with this counter
• Counter is updated with the value 1 once in 5 seconds when the WCELL is in WO State
M1000C180 AVAILABILITY WCELL EXIST IN RNW DATABASE
• # of samples when WCELL is configured in the database. This counter is used as a denominator for cell availability calculation
• Counter is updated with the value 1 one in approx. 5 seconds when the WCELL is configured in the radio network database
Cell resource/ cell actual availability
KPI construction - Call Blocking Rate
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( )
−
=
USERBYBLOCKEDWCELLAVAIL
DBRNWINEXISTWCELLAVAILsum
STATEWOINWCELLAVAILsumstateBLUexcludingtyAvailabiliCell
____
_________*100
____
M1000C179 AVAILABILITY WCELL BLOCKED BY USER
• # of samples when WCELL is BLU State. Counter M1000C180 is always updated along with this counter
• Counter is updated with the value 1 once in approx. 5 seconds when the WCELL is in BLU state
Cell resource/ cell availability
KPI construction - Call Blocking Rate (by user)
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Cell resource/ cell availability
Blocked by user:
OPERATOR has blocked ATM link between Node B and RNC related to the cell. No NBAP signaling between Node B and RNC related tothe cell. Some maintenance done for the cell
KPI construction - Call Blocking Rate
There is also Optional Cell availability KPI which counts Cell Availability from network point of view. Situation where WCELL is blocked by User are excluded from the formula.
RNC_727a Cell Availability KPI, excluding blocked by user state (BLU), Counts Cell availability from network point of view:
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Cell availability RNC196
• Cell available has same level as in RU10
RU20 PCD2.0RU10 WN6.0
No change in Cell availabilityPeaks down are due to
SW upgrades
PCD3.0 CD0.0
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failurestoduereleasesreleasesnormalfailurestoduereleasesCDR ____
___+=
Service level evaluations
KPI construction - Call Drop Rate
Dropped call:Dropped call:
All calls, which not All calls, which not terminate with a terminate with a normal releasenormal release
No retain abilityNo retain ability
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Call Drop Rate (CDRCall Drop Rate (CDR)
Call is dropped if one (or more) of the following RAB, RB or RL, drops.
PS call drop is different than the other call type drops, RAB service can still exits even if the RB and/or RL drops
Call drop could be a reason of coverage or interference issues, SHO problems, missing neighbour, inter RNC problems, just to mention some
Call Drop rate (CDR) is calculated based on RAB activation failures, it can be defined separately for different services
• Normal RAB releases are taken into account
• Drops during the signalling are not included
RAB Success = 100 RAB Success = 100 -- 100*(failures /success)100*(failures /success)
Service level evaluations
KPI construction - Call Drop Rate
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KPI evaluation – events R99/SHO
KPI construction - SHO Failure vs. success Rate
crequeststreplacemenbrequestsdroparequestsadditionupdatessetactivesuccessful
ratesuccessSHO1__1__1__
_____
++=
Here only the reliability of the feature itself is Here only the reliability of the feature itself is
checked. Problems like overlapping cells or checked. Problems like overlapping cells or
specific adjacencies are not discussed yetspecific adjacencies are not discussed yet
CELL A
CELL B
CELL C
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SHO success rate
• SHO success rate KPI (195a) is informing how many successful Active set updates we will have compared to initial Addition/Replacement/Deletion requests.
• This formula is excluding periodical reports, which might occur if for example RNC is busy and cannot process immediately initial request.
RNCBTS
RRC: Active Set Update
Decision toset up new RL
RRC: Measurement Report (e1a / e1c)
NBAP: Radio Link Setup Response
Start TX/RX
ALCAP:ERQ
ALCAP:ECF
RRC: Active Set Update Complete
UE
NBAP: Radio Link Setup Request – for Soft Handover
NBAP: Radio Link Addition Request – for Softer Handover
NBAP: Radio Link Addition Response
RNCBTS
RRC: Active Set Update
Decision toset up new RL
RRC: Measurement Report (e1a / e1c)
NBAP: Radio Link Setup Response
Start TX/RX
ALCAP:ERQ
ALCAP:ECF
RRC: Active Set Update Complete
UE
NBAP: Radio Link Setup Request – for Soft Handover
NBAP: Radio Link Addition Request – for Softer Handover
NBAP: Radio Link Addition Response
REQ_ON_SHOCELL_REPL_
EQ_ON_SHOCELL_DEL_R
EQ_ON_SHOCELL_ADD_R
ES_ON_SHOSUCC_UPDAT
++
NUMBER OF SUCCESSFUL AS UPDATENUMBER OF SUCCESSFUL AS UPDATEFOR THE CELL UNDER OBSERVATIONFOR THE CELL UNDER OBSERVATION
TOTAL NUMBER OF NOT PERIODOICAL TOTAL NUMBER OF NOT PERIODOICAL MEASUREMENT REPORT (1A,1B,1C) MEASUREMENT REPORT (1A,1B,1C) RECEIVED BY THE CELL UNDER OBSERVATIONRECEIVED BY THE CELL UNDER OBSERVATION
UPDATED FOR ALL THE CELLS WITHIN AS WHEN MEAS. REPORT IS RECEIVEUPDATED FOR ALL THE CELLS WITHIN AS WHEN MEAS. REPORT IS RECEIVEDD
REQ_ON_SHOCELL_REPL_
EQ_ON_SHOCELL_DEL_R
EQ_ON_SHOCELL_ADD_R
ES_ON_SHOSUCC_UPDAT
++
NUMBER OF SUCCESSFUL AS UPDATENUMBER OF SUCCESSFUL AS UPDATEFOR THE CELL UNDER OBSERVATIONFOR THE CELL UNDER OBSERVATION
TOTAL NUMBER OF NOT PERIODOICAL TOTAL NUMBER OF NOT PERIODOICAL MEASUREMENT REPORT (1A,1B,1C) MEASUREMENT REPORT (1A,1B,1C) RECEIVED BY THE CELL UNDER OBSERVATIONRECEIVED BY THE CELL UNDER OBSERVATION
UPDATED FOR ALL THE CELLS WITHIN AS WHEN MEAS. REPORT IS RECEIVEUPDATED FOR ALL THE CELLS WITHIN AS WHEN MEAS. REPORT IS RECEIVEDD
)____________
____________
____________(
)__________(*100_
NRTFORSHOONREQDELCELLNRTFORSHOONREQREPLCELL
NRTFORSHOONREQADDCELLRTFORSHOONREQDELCELL
RTFORSHOONREQREPLCELLRTFORSHOONREQADDCELLsum
NRTFORSHOONUPDATESSUCCRTFORSHOONUPDATESSUCCsumSuccessSHO
++++
++=
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ISHOsforattemptsISHOssuccessfulratesuccessISHO __
___ =
KPI evaluation – events R99/ISHO
KPI construction - ISHO success rate
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ISHO Success Rate
Example NBAP and RRC compressed mode signalling for a CS service inter-system HO
CNUE Node B RNC
RRC: Measurement Report (intra-frequency) 1F event
RRC: Measurement Control
NBAP: Radio Link Reconfiguration Prepare
NBAP: Radio Link Reconfiguration Ready
NBAP: Radio Link Reconfiguration Commit
RRC: Physical Channel Reconfiguration
RRC: Physical Channel Reconfiguration Complete
NBAP: Compressed Mode Command
RRC: Measurement Report (adjacent GSM cells, RxLev)
RRC: Measurement Control
NBAP: Compressed Mode Command
RRC: Measurement Report
RRC: Measurement Control
RRC: Handover from UTRAN Command
GSM BSIC Verification
GSM RSSI Measurement
ISHO triggering
Initial Compressed Mode Configuration
RANAP: Relocation Required
RANAP: Relocation Command
RANAP: IU Release Command
RANAP: IU Release Complete
IS_HHO_Att_xx
KPI evaluation – events R99/ISHO
KPI construction - ISHO success rate
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Updated KPIs for RU20
RNC_298e, ISHO Attempts RT
RNC_299d, ISHO Attempts NRT
RNC_300g, Inter System RT Hard Handover Success Ratio
RNC_301e, Inter System NRT Hard Handover Sucs. Ratio
Formulas were updated due to introduction of RAN955 Power Saving Mode for BTS. New counters were added into the KPI’s formulas.
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Inter System Handover RNC196 RNC196
• ISHO Success Rates decreased after PCD3.0 installation (correction announced)
• ISHO Attempts NRT increased about 50% (under analysis)
RU10 WN6.0
ISHO Attempts NRT increased
PCD3.0RU20 PCD2.0
ISHO Success rates decreased - SOLVED
CD0.0
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HSDPA Data Volume and Throughput
Transferred data volume at Iub can be calculated as:
HSDPA MAC-d net throughput at BTS [kbit/s] can be calculated as:
[ ][ ]sMbitdRNC /
s 60ationperiod_dur1000
TSHS_MACD_BIDISCARDED_ - SS_MACD_BITRECEIVED_H606_
⋅⋅=
[ ]MbitbRNC1000
SS_MACD_BITRECEIVED_H M5000C126_608_ =
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KPI overview
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KPI overviewPrinciples of 3G network optimizations
Principles of performance measurements and KPI classification
Examples for KPI construction- KPI Factors- Call Setup Failure Rate, - Call Setup success rate- Blocking Rate, - Call Drop Rate, - HO Failure Rate- Statistic examples
Reporting suites- Classes of counters,- main existing KPI
Appendix- examples of statistics
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Reporting suite Component
• The RAN Reporting Suite Component is designed to provide information for Service & Network Planning, Service Creation, Service & Network Monitoring and Business Management
• Predefined reports are available off-the-shelf and are grouped in various RAN reporting categories
• It is running on top of NetAct, on regional & global cluster.
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2. Pre-defined Reports Overview (1) RU10 Full Report Set
Modified RU10
New RU10
System Program RNC Level RSRAN000System Program Cell Level RSRAN084
RNC Capacity RSRAN068RNC capacity usage RSRAN085Node B Capacity RSRAN066Cell Capacity RSRAN067Iub Capacity RSRAN087Cell Power RSRAN086NRT DCH Allocations Statistics RSRAN097NRT Radio Bearer Statistics RSRAN013
Service/Session Accessibility Analysis RSRAN073Service/Session Accessability Detailed Analysis RSRAN105Service/Session Retainability Analysis RSRAN079Service/Session Retainability Detailed Analysis RSRAN106RAB Holding Times RSRAN021Service Summary RSRAN003
Allocated Traffic Amounts (R99 + HSPA) RSRAN070Cell Data Volume and Throughput at RNC RSRAN077Traffic Summary RSRAN026Used CE Capacity per RB Type in RNC RSRAN022Utilization Shares of Total Traffic Allocation Amounts RSRAN071Packet Call RSRAN101Traffic Model NW Dimensioning RSRAN088Iur Traffic - L3 RSRAN100Iub Traffic - Frame Protocol layer RSRAN096
1. System Program
2. Capacity
3. Service Level
4. Traffic
Capacity content was improved and extended
Service reports updated
Traffic content extended
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2. Pre-defined Reports Overview (2)RU10 Full Report Set
Modified RU10
New RU10
Active Set Size for NRT, RT Traffic RSRAN078HSPA Serving Cell Change RSRAN033HSPA Inter-Freq HHO RSRAN089IFHO Adjacencies RSRAN044InterSystem Handover per Cause RSRAN019InterSystem Handover Performance RSRAN023InterSystem Handover Reasons RSRAN018ISHO Adjacencies RSRAN045Load Based HO Related Resources RSRAN047Load Based IFHO/ISHO Performance RSRAN048Load Based IFHO/ISHO Triggering RSRAN049Service Based IFHO/ISHO Performance RSRAN050SHO Adjacencies RSRAN046Soft Handover Performance RSRAN028
NBAP Signalling RSRAN027RRC Signalling RSRAN038PRACH Propagation Delay RSRAN104
HSPA Overview RSRAN092HSPA Scheduling RSRAN091CQI Distribution RSRAN039HSPA Code and Modulation Usage RSRAN034HSPA Power Distribution RSRAN074Channel Switching and HSPA Layering RSRAN075UE Power Headroom RSRAN090MAC-hs Efficiency RSRAN040MAC-hs Retransmissions by Code and Modulation Usage RSRAN041Number of HSPA Users and UE capability RSRAN051
5. Mobility and Handover
6. Signalling
7. HSPA
Mobility content was updated
Signaling content extended with new PRACH delay report
HSPA content was improved, extended and updated
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2. Pre-defined Reports Overview (3)RU10 Full Report Set
Modified RU10
New RU10
ATM Interface Traffic Load RSRAN081IP Interface Throughput RSRAN099ATM VCC Traffic Load RSRAN083ATM VPC Traffic Load RSRAN082FTM Packet Transport Performance RSRAN076FTM Performance RSRAN072Iu-PS Throughputs RSRAN064Iu-PS Throughputs (GTP + NP8S1 or NP2GE int) RSRAN104Iu-CS RSRAN094M3UA RSRAN093ATM Iub Throughput RSRAN080IP Iub Throughput (BTS pov) RSRAN095Traffic on AAL5 RSRAN031Traffic on ATM Layer RSRAN029Traffic on Physical Medium SubLayer RSRAN030IP Transport Resource Reservations RSRAN098ATM Transport Resource Reservations RSRAN069
DSP Resource Usage RSRAN102DSP State Changes RSRAN103
9. Hardware
8. Transport
Transport content extended to support new IP based interfaces
New Hardware utilization monitoring content created
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2. Pre-defined Reports Overview (4) RU20 (Version RS 5.3.1)
Modified RU20
Removed RU20
New RU20
System Program RNC Level RSRAN000System Program Cell Level RSRAN084
RNC Capacity RSRAN068RNC capacity usage RSRAN085Node B Capacity RSRAN066Cell Capacity RSRAN067Iub Capacity RSRAN087Cell Power RSRAN086NRT DCH Allocations Statistics RSRAN097NRT Radio Bearer Statistics RSRAN013
Service/Session Accessibility Analysis RSRAN073Service/Session Accessability Detailed Analysis RSRAN105Service/Session Retainability Analysis RSRAN079Service/Session Retainability Detailed Analysis RSRAN106RAB Holding Times RSRAN021Service Summary RSRAN003
Allocated Traffic Amounts (R99 + HSPA) RSRAN070Cell Data Volume and Throughput at RNC RSRAN077Traffic Summary RSRAN026Used CE Capacity per RB Type in RNC RSRAN022Utilization Shares of Total Traffic Allocation Amounts RSRAN071Packet Call RSRAN101Traffic Model NW Dimensioning RSRAN088Iur Traffic - L3 RSRAN100Iub Traffic - Frame Protocol layer RSRAN096
1. System Program
2. Capacity
3. Service Level
4. Traffic
Capacity Reports improved with HSPA users sampled from WBTS. Some minor corrections done!
Service reports updated
Traffic Model NW Dimensioning: some KPIs corrected
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2. Pre-defined Reports Overview (5)RU20
Modified RU20
New RU20
Active Set Size for NRT, RT Traffic RSRAN078HSPA Serving Cell Change RSRAN033HSPA Inter-Freq HHO RSRAN089IFHO Adjacencies RSRAN044InterSystem Handover per Cause RSRAN019InterSystem Handover Performance RSRAN023InterSystem Handover Reasons RSRAN018ISHO Adjacencies RSRAN045Load Based HO Related Resources RSRAN047Load Based IFHO/ISHO Performance RSRAN048Load Based IFHO/ISHO Triggering RSRAN049Service Based IFHO/ISHO Performance RSRAN050SHO Adjacencies RSRAN046Soft Handover Performance RSRAN028
NBAP Signalling RSRAN027RRC Signalling RSRAN038PRACH Propagation Delay RSRAN104
HSPA Overview RSRAN092HSPA Scheduling RSRAN091CQI Distribution RSRAN039HSPA Code and Modulation Usage RSRAN034HSPA Power Distribution RSRAN074Channel Switching and HSPA Layering RSRAN075UE Power Headroom RSRAN090MAC-hs Efficiency RSRAN040MAC-hs Retransmissions by Code and Modulation Usa RSRAN041Number of HSPA Users and UE capability RSRAN051
5. Mobility and Handover
6. Signalling
7. HSPA
HSPA reports updated according to RU20 CPC, HSPA 72 Users Per Cell and HSUPA 2 ms TTI features
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2. Pre-defined Reports Overview (6)RU20
Modified RU20
New RU20
ATM Interface Traffic Load RSRAN081IP Interface Throughput RSRAN099ATM VCC Traffic Load RSRAN083ATM VPC Traffic Load RSRAN082FTM Packet Transport Performance RSRAN076FTM Performance RSRAN072Iu-PS Throughputs RSRAN064Iu-PS Throughputs (GTP + NP8S1 or NP2GE int) RSRAN104Iu-CS RSRAN094M3UA RSRAN093ATM Iub Throughput RSRAN080IP Iub Throughput (BTS pov) RSRAN095Traffic on AAL5 RSRAN031Traffic on ATM Layer RSRAN029Traffic on Physical Medium SubLayer RSRAN030IP Transport Resource Reservations RSRAN098ATM Transport Resource Reservations RSRAN069
DSP Resource Usage RSRAN102DSP State Changes RSRAN103
8. Hardware
8. Transport
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RU20 System Program modifications
There are several KPI modifications in System Program reports– New KPIs
– Modified KPIs
Microsoft Office Excel Worksheet
R NC_5058a PS NRT Serv Du r m inR NC_1906a R99 PS at t #R NC_5059a NR T Dur m inR NC_5066a Intra-RNC HH O At t, C S #R NC_5067a Intra-RNC HH O At t, PS #R NC_1879b Avg HSDPA end usr thp kbpsR NC_1883b HSUPA Act Cell Thp kbpsR NC_5068a MTC Share %R NC_231d RAB SR AMR Voice %R NC_737b M in per Drop Voice m inR NC_232e RAB SR UDI %R NC_738b M in per Drop UDI m inR NC_615c PS NRT RAB SR NW %R NC_736b PS NRT RAB SR, User %R NC_619b RAB SR Stream %R NC_740b M -RAB att #R NC_741b M -RAB stp and acc SR %R NC_742b M -RAB SR %R NC_298e ISHO att R T #R NC_299d ISHO att N RT #R NC_300g RT SR %R NC_301e NR T SR %R NC_302d RT DR %R NC_303d NR T DR %R NC_607d HSDPA MAC-hs efficiency %R NC_918b HSUPA SCC SR %R NC_280c Total CS traffic ER NC_5051b Iu-PS D ata per drop, IP M bitR NC_5050b Iu-PS D ata per drop, ATM M bit
R NC_943a R99 Se tup SR, NR T %R NC_5007a R99 Se tup SR, RT %R NC_944a R99 SR NRT %R NC_5015a R99 SR RT %R NC_5000b HSDPA res acc RT %R NC_5010a HSDPA res retain RT %R NC_5002a HSUPA res acc RT %R NC_5012a HSUPA res retain RT %
Deleted KPIs
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RU20 Other KPI corrections/improvements
• RSRAN068 – RNC Capacity– “Iub data traffic” KPI group was changed to be based upon Frame Protocol
metrics;
– Following KPIs were corrected RNC_986b PS Data in DL
RNC_985b PS Data in UL
– RNC_1064a CS Data moved to “Iu-PS (R99+HSPA) traffic” group
– RNC_982b HSDPA Throughput moved to “Traffic Profile” group
• RSRAN088 - Traffic Model NW Dimensioning– Following KPIs were corrected: RNC_1867b CS Voice
RNC_1868b CS Data Conv
RNC_1869b CS Data Stream
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RU20 Other KPI corrections/improvements
• RSRAN066 - Node B Capacity– Introduced three new KPI groups to monitor Channel Element Utilization
Ratios: “CE Utilization Ratio DL”;
“CE Utilization Ratio UL”
“CE HSPA Utilization Ratio”.
– New KPI group to monitor amount of HSPA user in WBTS: Number of HSPA Users
• RSRAN067 – Cell Capacity– Introduced a new KPI group to monitor common channel load: “Common chn avg load”
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RU20 Other KPI corrections/improvements• RSRAN044 - IFHO Adjacencies
• RSRAN045 - ISHO Adjacencies
• RSRAN046 - SHO Adjacencies– Improvements were introduced to achieve: Neighbour classification of each adjacent pair;
All neighbour adjacent pair are shown even if no handover events exist;
Easy identification of candidate adjacencies for neighbour configuration.
• RSRAN092 – HSPA Overview– “HSUPA usage” KPI group extend to support new features: HSUPA 2ms TTI
– “Continuous Packet Connectivity” group provide information about: CPC User Share;
User Inactivity ratio;
Average CPC Users;
HSUPA transmitted power
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Thank You !
KPI overview
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Soc Classification level 70 © Nokia Siemens Networks RN31572EN20GLA1
KPI overviewPrinciples of 3G network optimizations
Principles of performance measurements and KPI classification
Examples for KPI construction- KPI Factors- Call Setup Failure Rate, - Call Setup success rate- Blocking Rate, - Call Drop Rate, - HO Failure Rate- Statistic examples
Reporting suites- Classes of counters,- main existing KPI
Appendix- examples of statistics
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Principles of 3G network optimization
Target issues for performance optimizations are to Target issues for performance optimizations are to ……
assume and evaluate counter values by detecting of failures and success figures, threshold values and increment target parameters with impact of 3G RAN and transmission actual quality impacts to assume performance situations
Therefore check counters to ensure the RAN/Core QoS:
- Detect fault based by counters within performance measurements- Assume NED (Nokia electronic dictionary), PDF data- Match Excel data or/and KPI description with KPI- Move to RAN Parameter setting and trace at interfaces e.g. Iub/Iur/Iu.
Counter strategy
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• Coverage counters (more classes than before) to see sudden change in UL/DL interference (Tx Carrier Power, Tx code power, UL Received Total Wideband Power (RTWP)
• Improvement in Mobility – SHO branch setup fail due to BTS/iub
– Voice RAB Setup fail Iur_TR / Iu_cs
– DCH setup failure for NRT in Iur
– Relocation success in target RNC
– ISHO : HHO RRSI & BSIC time & Isho cancellation
– SHO based on DSR
– SHO Overhead based on CPICH EcNo difference
– Intra/Inter-Frequency Inter RNC Hard HO/ISHO (RRC active release)
Counter strategy: Useful RU20 counters in Basic Optimization
Principles of 3G network optimization
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In RU20 there are some new counters which can be used to identify Capacity bottlenecks or Monitor new RU20 capacity features
• New traffic class (1002) counters to monitor DCH setup and Reconfiguration rejections due the codes & power (DL & UL)
• New Counters to monitor HSDPA MAC-d Setup failures
New Counters to monitor Average & Max number of HSPA users
Counters to monitor HSDPA power distribution and BTS scheduling efficiency => Spectral Efficient Link Adaptation RNC
New measurements M802 can be used to monitor RNC capacity usage SW license key controlled RNC capacity
New RNC DSP Resource Counters (M609, M615, M612, M617)
Counter strategy: Useful RU20 counters in Capacity Optimization
Principles of 3G network optimization
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• Additional HSPDA– RAN1509: RAB Bit Rate Counters
-
• Traffic & Capacity– RAN1312: Channel Element Utilization in WBTS
Principles of performance measurements
Example of New RU20 counter features
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RAB Bit Rate Counters
Possibility to follow HSDPA utilization need in network
• DL Bit Rate ranges implementation based on:
•UE Category (*)
•HSDPA performance issues
•NSN HSDPA features (see HSDPA features in FUDs)
Max 0.9 M 0.9 M-1.8M 1.8M-3.6M 3.6M-7.2M 10M-14.4M7.2 M-10M 14.4 M < x < 40 M
UE Cat 11 UE Cat 12 UE Cat 1-6
< 384 K
R99
HSDPA UE (*) capability class
UE Cat 10UE Cat 9UE Cat 7-8
HSDPA Bit rate ranges for UE capabilities
UE Cat 13-18
QPSK
5 HS-PDSCH Codes
64 QAM16 QAM
15 HS-PDSCH Codes
“4/4” Turbo coding1/4 Turbo coding
Used modulation
Available codes
Used channel coding2/4 coding 3/4 coding
HSDPA performance Issues in network
(*) UE classes are here used to help the reader to split out exactly the range of the RAB provided by the Core Network matching with the UE classes.UE capability provided by PI „RRC establishments per UE Capability, M1001XX”
384Kb-1.8 M 1.8M-3.6M 3.6M-7.2M 7.2 M-10M 10M-14.4M >14.4MDL RAB Bit rate counter ranges
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RAB Bit Rate Counters
Possibility to follow HSUPA utilization need in network
Max 0.72 M 0.72 M-1.45M 1.45 M-2M 2 M-2.91 M 2.91 M < x < 5.8 M
SF4
UE Category 1 UE Category 2-3
< 384 K
R99
HSUPA UE (*) capability class
2 x SF4
UE Category 6UE Category 4UE Category 5
10 ms 2 ms
HSUPA Bit rate ranges for UE capabilities
Possible SFs
Parallel SFs
TTI interval
SF2
2 x SF2 2 x SF2 + 2 x SF4
• UL Bit Rate ranges implementation based on:
•UE Category (*)
•HSUPA performance issues
•NSN HSUPA features (see HSUPA features in FUDs)
HSDPA performance Issues in network
= < 2 M > 2 MDL RAB Bit rate counter ranges
(*) UE classes are here used to help the reader to split out exactly the range of the RAB provided by the Core Network matching with the UE classes.UE capability provided by PI „RRC establishments per UE Capability, M1001XX”
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RAB Bit Rate Counters
RAB SETUP ATTEMPTS FOR UL MAX BIT RATE - CLASS 5M1001C670
RAB SETUP ATTEMPTS FOR UL MAX BIT RATE - CLASS 4M1001C669
RAB SETUP ATTEMPTS FOR UL MAX BIT RATE - CLASS 3M1001C668
RAB SETUP ATTEMPTS FOR UL MAX BIT RATE - CLASS 2M1001C667
RAB SETUP ATTEMPTS FOR UL MAX BIT RATE - CLASS 1M1001C666
RAB SETUP ATTEMPTS FOR DL MAX BIT RATE - CLASS 7M1001C665
RAB SETUP ATTEMPTS FOR DL MAX BIT RATE - CLASS 6M1001C664
RAB SETUP ATTEMPTS FOR DL MAX BIT RATE - CLASS 5M1001C663
RAB SETUP ATTEMPTS FOR DL MAX BIT RATE - CLASS 4M1001C662
RAB SETUP ATTEMPTS FOR DL MAX BIT RATE - CLASS 3M1001C661
RAB SETUP ATTEMPTS FOR DL MAX BIT RATE - CLASS 2M1001C660
RAB SETUP ATTEMPTS FOR DL MAX BIT RATE - CLASS 1M1001C659DL
UL
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RAN1509RAB Bit Rate Counters Number of RAB setup attempts for DL for Class ...
Class 1 -> (<= 384 kbps) Class 2 -> (> 384 kbps <= 1.8 Mbps)Class 3 -> (> 1.8 Mbps <= 3.6 Mbps)Class 4 -> (> 3.6 Mbps <= 7.2 Mbps)Class 5 -> (> 7.2 Mbps <= 10 Mbps)Class 6 -> (> 10 Mbps <= 14.4 Mbps)Class 7 -> (> 14.4 Mbps)
Number of RAB setup attempts for UL for Class ...Class 1 -> (<= 128 kbps) Class 2 -> (> 128 kbps <= 384 kbps)Class 3 -> (> 384 kbps <= 1 Mbps)Class 4 -> (> 1 Mbps <= 2 Mbps)Class 5 -> (> 2 Mbps)
Ulink
Dlink
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RAB setup Bitrates uplink -example
0%
20%
40%
60%
80%
100%
13.03.
2010
__00:00:
00
13.03.2
010__0
3:00:
00
13.03.2
010__0
6:00:
00
13.03.2
010__09:
00:00
13.0
3.201
0__12:
00:00
13.03
.201
0__15:0
0:00
13.03.2
010__1
8:00:
00
13.03.2
010__2
1:00:
00
14.03.2
010__00:0
0:00
14.0
3.201
0__03:0
0:00
14.0
3.201
0__06:
00:0
0
14.03.2
010__
09:00:
00
14.03.2
010__1
2:00:0
0
14.03
.2010
__15:0
0:00
14.03.2
010__18:
00:0
0
14.03
.2010
__21:
00:00
15.03.2
010__
00:00:
00
15.03.2
010__0
3:00:0
0
15.03
.2010
__06:0
0:00
15.03
.2010__0
9:00:0
0
15.0
3.201
0__12:
00:00
RAB_STP_ATT_BR_CLASS_5_UL(M1001C670)
RAB_STP_ATT_BR_CLASS_4_UL(M1001C669)
RAB_STP_ATT_BR_CLASS_3_UL(M1001C668)
RAB_STP_ATT_BR_CLASS_2_UL(M1001C667)
RAB_STP_ATT_BR_CLASS_1_UL(M1001C666)
More than 50 % of the RAB
setups are >2 Mits/s
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RAB setup Bitrates downlink -example
0%
20%
40%
60%
80%
100%
13.03.2
010__00:
00:00
13.03.2
010__0
3:00:
00
13.03
.2010__06:
00:00
13.03.2
010__09:
00:00
13.03.2
010__1
2:00:0
0
13.03.2
010__15:00:0
0
13.03.2
010__1
8:00:
00
13.03
.2010__21:
00:00
14.03.2
010__00:
00:00
14.03.2
010__0
3:00:0
0
14.03
.2010__06:
00:00
14.03.2
010__0
9:00:
00
14.03.2
010__1
2:00:0
0
14.03.2
010__15:00:0
0
14.03.2
010__1
8:00:
00
14.03.2
010__21:
00:00
15.03.2
010__00:00:
00
15.03
.2010
__03:0
0:00
15.03.2
010__06:
00:00
15.03.2
010__09:
00:00
15.03
.2010
__12:0
0:00
RAB_STP_ATT_BR_CLASS_1_DL(M1001C659)
RAB_STP_ATT_BR_CLASS_7_DL(M1001C665)
RAB_STP_ATT_BR_CLASS_6_DL(M1001C664)
RAB_STP_ATT_BR_CLASS_5_DL(M1001C663)
RAB_STP_ATT_BR_CLASS_4_DL(M1001C662)
RAB_STP_ATT_BR_CLASS_3_DL(M1001C661)
RAB_STP_ATT_BR_CLASS_2_DL(M1001C660)
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• HSPA UL and HSPA DL distribution of the total utilized CE capacity
▪20%,
▪40%,
▪60%,
▪80%,
▪100%
RAN 1312Channel Element Utilization in WBTS
• Total Licensed Capacity 0-50%,
51-70%,
71-90%,
90-99%,
100%
70-90%
90-99%
50-70%
100%
Total
HSPA UL
HSPA DL
The RAN1312 introduces new counters to monitor Channel Elements distribution inside theWBts. It is a completly new concept in comparison to the existing counters since the newnew ones are showing percentage of utilization.
helping the customer to trigger the investments for CEs‘ expansions.
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RAN 1312Channel Element Utilization in WBTS
BTS CE TOTAL UTIL UL - CLASS 1 (0 - <50) %
BTS CE TOTAL UTIL UL - CLASS 2 (50 - <70) %
BTS CE TOTAL UTIL UL - CLASS 3 (70 - <80) %
BTS CE TOTAL UTIL UL - CLASS 4 (80 - <90) %
BTS CE TOTAL UTIL UL - CLASS 5 (90 -<100)%
BTS CE TOTAL UTIL UL - CLASS 6 (100) %
BTS CE TOTAL UTIL DL - CLASS 1 (0 - <50) %
BTS CE TOTAL UTIL DL - CLASS 2 (50 - <70) %
BTS CE TOTAL UTIL DL - CLASS 3 (70 - <80) %
BTS CE TOTAL UTIL DL - CLASS 4 (80 - <90) %
BTS CE TOTAL UTIL DL - CLASS 5 (90 -<100)%
BTS CE TOTAL UTIL DL - CLASS 6 (100) %
•BTS CE HSPA UTIL UL - CLASS 1 (0 - 20) %
•BTS CE HSPA UTIL UL - CLASS 2 (>20 - 40) %
•BTS CE HSPA UTIL UL - CLASS 3 (>40 - 60) %
•BTS CE HSPA UTIL UL - CLASS 4 (>60 - 80) %
•BTS CE HSPA UTIL UL - CLASS 5 (>80 - 100) %
•BTS CE HSPA UTIL DL - CLASS 1 (0 - 20) %
•BTS CE HSPA UTIL DL - CLASS 2 (>20 - 40) %
•BTS CE HSPA UTIL DL - CLASS 3 (>40 - 60) %
•BTS CE HSPA UTIL DL - CLASS 4 (>60 - 80) %
•BTS CE HSPA UTIL DL - CLASS 5 (>80 - 100) %
In customer documentation: M5001C15 - M5001C36
HSPA CEs UL
HSPA CEs DL
TOTAL Amount of CEs
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Total CE Utilization share in UL –example
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
11.03
.2010
__09:0
0:00
11.03
.2010
__11:0
0:00
11.03
.2010
__13:00:
00
11.03.
2010
__15:
00:00
11.03.
2010_
_17:00:
00
11.03.2
010__1
9:00:0
0
11.03.
2010_
_21:
00:0
0
11.03
.2010__2
3:00:
00
12.03
.2010
__01:0
0:00
12.03
.201
0__03:0
0:00
12.03
.2010
__05:
00:00
12.03.2
010__07
:00:
00
12.03.2
010__0
9:00:
00
12.03
.2010
__11:00:
00
12.03
.201
0__13:
00:00
12.03.
2010_
_15:
00:00
70.00
75.00
80.00
85.00
90.00
95.00
(100 or more)% M5001C20
(90 - <100)% M5001C19
(80 - <90)% M5001C18
(70 - <80)% M5001C17
(50 - <70)% M5001C16
(0 - <50)% M5001C15
Avg Ratio of Used CE for UL in BTSRNC_731A
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CE HSPA Utilization share in UL +Max HSDPA users-example
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
11.03
.2010
__09:0
0:00
11.0
3.201
0__11:
00:0
0
11.03.2
010__13:
00:00
11.03.2
010__1
5:00:
00
11.03.
2010
__17:00:
00
11.03
.2010
__19:
00:00
11.03.2
010__
21:00:0
0
11.03.2
010__23:
00:00
12.03.2
010__01:
00:00
12.03
.201
0__03:
00:00
12.03.2
010__05:
00:00
12.03.2
010__0
7:00:
00
12.03.2
010__09:
00:00
12.03
.2010
__11:
00:00
12.03.2
010__13:0
0:00
12.0
3.201
0__15:
00:0
0
0
5
10
15
20
25
30
35
40
UL(90 - <100)% M5001C31
UL (80 - <90)% M5001C30
UL (70 - <80)% M5001C29
UL (50 - <70)% M5001C28
UL (0 - <50)% M5001C27
Max HSUPA Users M1031C1
Max HSDPA Users M1031C0
Avg ratio of Used CE for UL for HSUPA inBTS RNC_948A
Avg ratio of Used CE for DL for HSUPA inBTS RNC_947A
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RAN1136Separate Counters for RelocationsThe outgoing relocation is currently visible, M1001C13, but not separated per:• SRNS relocation, • Inter RNC HHO• Inter RAT HHO in counters.
By this feature the operator is able to monitor the frequency and success of SRNS relocations in all relevant cases, i.e SRNS Relocation, Inter RNC HHO and Inter RAT HHO.
The incoming relocation is also visible, M1001C62, but not separated per:
• traffic class
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Separate Counters for Relocations
2G-Core
BSCAbis A
3G-Core
RNCIub Iu
RNCIub
IuIur
UMTS
GSM
New counters for Inter RAT HHORelocated UE
New counters forSRNS and Inter RNC HHO Relocated UE
Current Relocation
RANAP:Iu Release Complete
Existing counters forL3 layer relatedRelocation signal
Existing countersfor air interferencerelated relocationRRC signaling
No more WCell in AS for the current RNC i.e. last RL deleted in current RNC
CS:RNC commands the UE the GSMPS:RNC detects UE has moved
Inter RNC HHO needed SRNS relocation needed
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RAN1136Separate Counters for Incoming RelocationsRRC_RELOC_STP_ATT updated a target RNC of HHO or relocation receives a RANAP: RELOCATION REQUEST message from a core network
RAB_RELOC_STP_ATT updated when a target RNC of HHO or relocation receives a RANAP: RELOCATION REQUEST message from a core network and the RAB type is known
RAB_RELOC_ACC_COMP updated when When a target RNC of HHO or relocation sends a RANAP: RELOCATION COMPLETE message to a core network after a successful incoming SRNC relocation, Inter-RNC HHO or ISHO procedure
Reloc M 1001C808 ServiceLevel RRC_RELOC_STP_ATTM 1001C810 ServiceLevel RRC_RELOC_ACC _COMPM 1001C651 ServiceLevel RAB_RELOC_STP_ATT_PS_STREAM 1001C817 ServiceLevel RAB_RELOC_STP_ATT_PS_INTM 1001C826 ServiceLevel RAB_RELOC_STP_ATT_PS_BGRM 1001C653 ServiceLevel RAB_RELOC_STP_ATT_CS_VOICEM 1001C657 ServiceLevel RAB_RELOC_STP_ATT_CS_STREAM 1001C655 ServiceLevel RAB_RELOC_STP_ATT_CS_CONVM 1001C652 ServiceLevel RAB_RELOC_AC C_COM P_PS_STREAM 1001C819 ServiceLevel RAB_RELOC_AC C_COM P_PS_ INTM 1001C828 ServiceLevel RAB_RELOC_AC C_COM P_PS_BGRM 1001C654 ServiceLevel RAB_RELOC_AC C_COM P_CS_VOICEM 1001C658 ServiceLevel RAB_RELOC_AC C_COM P_CS_STREAM 1001C656 ServiceLevel RAB_RELOC_AC C_COM P_CS_CONV
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RAN1136Separate Counters for HHO, ISHO and Relocations only
Outgoing relocations
ISHO
IFHO
Reloc
M 1001C647 ServiceLevel RAB_ACT_REL_CS_VOICE_ISHOM 1001C649 ServiceLevel RAB_ACT_REL_CS_STREA_ISHOM 1001C648 ServiceLevel RAB_ACT_REL_CS_CONV_ISH OM 1001C805 ServiceLevel RAB_ACT_REL_PS_BGR _ISHOM 1001C807 ServiceLevel RAB_ACT_REL_PS_STREA_ISHOM 1001C804 ServiceLevel RAB_ACT_REL_PS_ INTER_ISHO
M 1001C646 ServiceLevel RAB_ACT_REL_CS_STREA_H HOM 1001C644 ServiceLevel RAB_ACT_REL_CS_VOICE_HH OM 1001C801 ServiceLevel RAB_ACT_REL_PS_ INTER_HHOM 1001C645 ServiceLevel RAB_ACT_REL_CS_CONV_HHOM 1001C802 ServiceLevel RAB_ACT_REL_PS_BACKG_H HOM 1001C806 ServiceLevel RAB_ACT_REL_PS_STREA_HHO
M 1001C153 ServiceLevel RAB_ACT_REL_CS_STREA_SRN CM 1001C151 ServiceLevel RAB_ACT_REL_CS_CON V_SR NCM 1001C169 ServiceLevel RAB_ACT_REL_PS_STREA_SRNCM 1001C171 ServiceLevel RAB_ACT_REL_PS_INTER_SRNCM 1001C167 ServiceLevel RAB_ACT_REL_PS_CONV_SRNCM 1001C172 ServiceLevel RAB_ACT_REL_PS_BAC KG_SRN CM 1001C143 ServiceLevel RAB_ACT_REL_CS_VOICE_SRN C
Existing counters, but not for HHO
anymore
Inter RNC HHO
Inter System HHO
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CSSR – PS NRT
entsestablishmRABPSforattempts
entsestablishmRABPSsuccessful
setupconnectionPSRRCduringnsreselectiocell
setupsconnectionPSRRCforattemptsrepetetive
setupsconnectionPSRRCforattempts
setupconnectionPSRRCduringnsreselectiocell
setupsconnectionPSRRCoffailures
setupsconnectionPSRRCforattempts
CSSRPS____
___*
______
______
_____
______
_____
_____
_
−−
−−
=
Service level evaluations (PS)
KPI construction - call setup success rate
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• CSSR KPI for PS NRT
from end user perspective (rnc_576d)
• Includes both Interactive and Background PS calls
• Counts from RRC request until RAB is established (with 0/0 RB)• Same as CSSR for AMR, except:
– Emergency calls not included
– Counters for NRT RAB instead of Voice RAB
Service level evaluations (PS/NRT)
KPI construction - call setup success rate
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•RNC_576e Packet Call Setup Success Ratio [%] over the reporting period. • Includes both Interactive and Background PS calls• Counts from RRC request until RAB is established (with 0/0 RB)
• Same as CSSR for AMR, except:– Emergency calls not included– Counters for NRT RAB instead of Voice RAB– In RU10 it was decided that also RRC Connection Establishment requests with 'high priority
signaling' are interpreted as Packet Service requests.
))____
____(
)____
____((
*
))PR_SIGNL_MT_HIGH_RRC_ACC_RE - PR_SIGNL_MO_HIGH_RRC_ACC_RE
________
_______
________
PR_SIGNP_MT_HIGH_RRC_ATT_RE-PR_SIGNP_MO_HIGH_RRC_ATT_RE
_______
______
ATTSRIOR_SIGN_MTC_HIGH_P ATTSRIOR_SIGN_MOC_HIGH_P
______(
)PR_SIGNL_MT_HIGH_RRC_ACC_RE- PR_SIGNL_MO_HIGH_RRC_ACC_RE
________
_______
_FAILS]PRIOR_SIGN[MTC_HIGH_ - _ATTSPRIOR_SIGN[MTC_HIGH_
FAILS]RIOR_SIGN_MOC_HIGH_P - _ATTSPRIOR_SIGN[MOC_HIGH_
______
______
______
______((*100
_
BACKGPSATTSTPRAB
INTERPSATTSTPRABsum
BACKGPSCOMPACCRAB
INTERPSCOMPACCRABsum
BACKGMTRELACCRRCINTERMORELACCRRC
BACKGMORELACCRRCINTERRELACCRRC
BACKGMTREPATTRRCBACKGMOREPATTRRC
INTERMOREPATTRRCINTERREPATTRRC
ATTSCALLBACKGMTCATTSCALLINTERMTC
ATTSCALLBACKGMOCATTSCALLINTERMOCsum
BACKGMTRELACCRRCINTERMORELACCRRC
BACKGMORELACCRRCINTERRELACCRRC
FAILSCALLBACKGMTCATTSCALLBACKGMTC
FAILSCALLINTERMTCATTSCALLINTERMTC
FAILSCALLBACKGMOCATTSCALLBACKGMOC
FAILSCALLINTERMOCATTSCALLINTERMOCsum
CSSRPS
+
+
−−−
−−−−
−−−
++++
+−
−−−−
++
−+−+
−+−
=
RRC partRAB part
PS Call Setup Success Rate (CSSR)
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• Includes PS NRT traffic (Interactive & Background) but not PS RT traffic
⋅
_DCH_BGRPS_ATT_DCH M1022C8 +_DCH_INTPS_ATT_DCH M1022C7
D_ALLO_BGRD_D_REQ_D_ M1022C32 +D_ALLO_INTD_D_REQ_D_ M1022C31100
Request in DL: DCH Allocated in DL: DCH
Request in UL: DCHAllocated in UL: DCH
Interactive RAB
Service level evaluations (PS/Release 99)
KPI construction – packet call setup success rate
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=
GRSCH_EDCH_BPS_ATT_HSD M1022C4+NTSCH_EDCH_IPS_ATT_HSD M1022C3
GRS_E_ALLO_BHS_E_REQ_H M1022C21+NTS_E_ALLO_IHS_E_REQ_H M1022C21
e[%]Perspectiv User from Ratio Success SetupHSUPA RNC_915a
Packet Call: SSSR – HSUPA (HSDPA + HSUPA)
Here all possible success combinations without R99 (R5 / R6)
Request Allocation
HSDPA + HSUPA HSDPA + HSUPA
HSDPA + HSUPA HSDPA + DCH
HSDPA + DCH HSDPA + DCH
UE wants to get both HS-DSCH + E-DCH R5 + R6 resource
Service level evaluations (PS/Release 5/6)
KPI construction – packet call setup success rate
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+++
+++
++
+
⋅
=
_DCH_BGRPS_ATT_DCH M1022C8+_DCH_INTPS_ATT_DCH M1022C7+
RSCH_DCH_BGPS_ATT_HSD M1022C6TSCH_DCH_INPS_ATT_HSD M1022C5+
GRSCH_EDCH_BPS_ATT_HSD M1022C4+NTSCH_EDCH_IPS_ATT_HSD M1022C3 D_ALLO_BGRD_D_REQ_D_ M1022C32+D_ALLO_INTD_D_REQ_D_ M1022C31+
R_D_ALLO_BGHS_D_REQ_D M1022C30+T_D_ALLO_INHS_D_REQ_D M1022C29+
R_D_ALLO_BGHS_E_REQ_D M1022C28T_D_ALLO_INHS_E_REQ_D M1022C27+
GRS_D_ALLO_BHS_D_REQ_H M1022C26+NTS_D_ALLO_IHS_D_REQ_H M1022C25+
GRS_D_ALLO_BHS_E_REQ_H M1022C24+NTS_D_ALLO_IHS_E_REQ_H M1022C23+
GRS_E_ALLO_BHS_E_REQ_H M1022C22+NTS_E_ALLO_IHS_E_REQ_H M1022C21
[%] Ratio Success Setup SessionPacket RNC_916
100
Packet Call: SSSR - All NRT packet sessions
(HSPA + R99)
Service level evaluations (PS/Release 5/6)
KPI construction – packet call setup success rate
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• Formula is a combination of 3 formulas (HSUPA, HSDPA, Rel99)
• Only NRT sessions included
Here all possible success combinationsHere all possible success combinations
RequestRequest AllocationAllocation
HSDPA + HSUPAHSDPA + HSUPA HSDPA + HSUPAHSDPA + HSUPA
HSDPA + HSUPAHSDPA + HSUPA HSDPA + DCHHSDPA + DCH
HSDPA + HSUPAHSDPA + HSUPA DCH + DCHDCH + DCH
HSDPA + DCHHSDPA + DCH HSDPA + DCHHSDPA + DCH
HSDPA + DCHHSDPA + DCH DCHDCH + DCH+ DCH
DCH + DCHDCH + DCH DCHDCH + DCH+ DCH
Packet Call: SSSR - All NRT packet sessions (at least Cell_DCH)
Service level evaluations (PS/Release 5/6)
KPI construction – packet call setup success rate
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Packet Call Setup Success Ratio [%] over the reporting period. Includes both Interactive and Background PS calls
(in comparison to previous slides emergency calls included)
RRC request repetitions done by UE after RRC reject are included in the formula
* The occurred cell re-selections are subtracted both from the numerator and denominator because they are not considered as call attempts from mobile end-user point of view. The UE has made a new RRC connection via another cell and Attempts-counter is updated in the new cell for the new attempt.
Service level evaluations (PS)
KPI construction - call setup success rate
For voice KPI = % of successfullyestablished voice calls
For PS KPI = % of successfullyestablished PS calls
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• RNC_5016a= Maximum number of AMR calls per RNC=max(M802C1)
• RNC_5017a Peak number of HSDPA users in RNC (M609)= max(DSP_SERVICE_PEAK_RES_ALLOC, service type ALLHSDPA)
• RNC_5018a Peak number of HSUPA users in RNC (M609)= max(DSP_SERVICE_PEAK_RES_ALLOC, service type ALLHSUPA)
• RNC_5004a Incoming Inter System HHO Success in Target RNC for CS (M1009)=
– 100* sum(IS_COMPL_TARGET_RNC) / sum(IS_HHO_IN_PREP_REQ)
• RNC_5008a Relocation Success in Target RNC for CS (M1009)=– 100 * sum(SRNS_RELOC_COMPL_RNC_MSC +
INTER_HHO_COMPL_IN_RNC_MSC) / sum(SRNS_RELOC_IN_REQ_CONTR_MSC+ INTER_RNC_HHO_IN_REQ_MSC)
• RNC_5009a Relocation Success in Target RNC for PS (M1009)=– 100* sum(SRNS_RELOC_COMPL_RNC_SGSN +
INTER_HHO_COMPL_IN_RNC_SGSN) / sum(SRNS_RELOC_IN_REQ_CONTR_SGSN+ INTER_RNC_HHO_REQ_SGSN)
New KPI’s (RU10)
KPI construction - packet call setup
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• RNC_5019a Iub data volume DL in BTS (M5003)
– sum(CCH_DATA_FROM_IUB + DCH_DATA_FROM_IUB + HSDSCH_DATA_FROM_IUB)*8 / 1000 [mbit]
• RNC_5020a Iub data volume UL in BTS (M5003)
– sum(CCH_DATA_TO_IUB_INTERFACE + DCH_DATA_TO_IUB + EDCH_DATA_TO_IUB)*8 / 1000 [MBit]
• RNC_5021a Iu-PS peak throughput (M802C9)
– sum(IU_PS_THR_PEAK) / 1000 [MBits/s]
New KPI’s (RU10)
KPI construction - packet call setup
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Service level evaluations (PS)
KPI construction - Call Drop Rate
• RNC_736b - RAB Success Ratio for NRT Services [%] from user perspective over the reporting period.
• Covers RAB Active Phase of a call. Includes both Interactive and Background PS calls.
)__________
__________
__________
__________
__________
__________
__________
________(
)__________
__________
__________
__________
__________
__________
__________(*100100
736_
UEBACKGPSFAILACTRABUEINTERPSFAILACTRAB
RNCBACKGPSFAILACTRABRNCINTERPSFAILACTRAB
IURBACKGPSFAILACTRABIURINTERPSFAILACTRAB
BTSBACKGPSFAILACTRABBTSINTERPSFAILACTRAB
RADIOBACKGPSFAILACTRABRADIOINTERPSFAILACTRAB
IUBACKGPSFAILACTRABIUINTERPSFAILACTRAB
SRNCBACKGPSRELACTRABSRNCINTERPSRELACTRAB
BACKGPSCOMPACTRABINTERPSCOMPACTRABsum
PCHINTERPSFAILACTRABPCHBACKGPSFAILACTRAB
UEBACKGPSFAILACTRABRNCBACKGPSFAILACTRAB
IURBACKGPSFAILACTRABBTSBACKGPSFAILACTRAB
RADIOBACKGPSFAILACTRABIUBACKGPSFAILACTRAB
UEINTERPSFAILACTRABRNCINTERPSFAILACTRAB
IURINTERPSFAILACTRABBTSINTERPSFAILACTRAB
RADIOINTERPSFAILACTRABIUINTERPSFAILACTRABsum
aRNC
++++
++++
+++
++++
−−++
+++
++++
+−
=
Both Interactive and Background
PS calls
• For NRT RABs pre-emption is not possible
• As the formula is based on active fail counters is means in this case that when RAB drops in CELL_PCH state that two fail counters are updated. This is taken into account in the formula (the drops in CELL_PCH subtracted from all drops.)
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RNC_736b - PS call drop ratio KPI is currently same than RAB success for NRT services
Includes both Interactive and Background PS calls
• For NRT RABs pre-emption is not possible
• As the formula is based on active fail counters is means in this case that when RAB drops in CELL_PCH state that two fail counters are updated. This is taken into account in the formula (the drops in CELL_PCH subtracted from all drops.)
Service level evaluations (PS)
KPI construction - Call Drop Rate
For PS KPI 736a = % of
successfully terminated NRT RABs
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Service level evaluations (CS)
KPI construction - Call Drop Rate
RAB considered Connection UE RAB considered Connection UE -- CNCNCNUE
)__________
__________
__________
_GANHOL_CS_VOICERAB_ACT_RE _ISHOL_CS_VOICERAB_ACT_RE
_HHOL_CS_VOICERAB_ACT_RE______
_________(
)__________
__________
__________
______(*100100
231_
UEVOICECSFAILACTRABRNCVOICECSFAILACTRAB
IURVOICECSFAILACTRABBTSVOICECSFAILACTRAB
RADIOVOICECSFAILACTRABIUVOICECSFAILACTRAB
EMPPVOICECSRELACTRAB
SRNCVOICECSRELACTRABVOICECSCOMPACTRABsum
UEVOICECSFAILACTRABRNCVOICECSFAILACTRAB
IURVOICECSFAILACTRABBTSVOICECSFAILACTRAB
RADIOVOICECSFAILACTRABIUVOICECSFAILACTRAB
EMPPVOICECSRELACTRABsum
cRNC
++++
+++
++++
++++
++−
=
For Voice, the release due to pre-emption is included
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Service level evaluations (CS)
KPI construction - Call Drop Rate
RNC_231c - CDR KPI for CS Voice
(RAB success) from end user perspective
Covers RAB Active Phase of a call. Probability
that call has ended normally after setup has
been successful. This is taking into notice just
calls which has ended this cell, but might have
been started in other cells.
For CS KPI 231c = % of
successfully terminated AMR RABs
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KPI construction - SHO Failure vs. success rate
• SHO success rate KPI (195a) is informing how many successful Active set updates we will have compared to initial Addition/Replacement/Deletion requests.
• This formula is excluding periodical reports, which might occur if for example RNC is busy and cannot process immediately initial request.
RNCBTS
RRC: Active Set Update
Decision toset up new RL
RRC: Measurement Report (e1a / e1c)
NBAP: Radio Link Setup Response
Start TX/RX
ALCAP:ERQ
ALCAP:ECF
RRC: Active Set Update Complete
UE
NBAP: Radio Link Setup Request – for Soft Handover
NBAP: Radio Link Addition Request – for Softer Handover
NBAP: Radio Link Addition Response
RNCBTS
RRC: Active Set Update
Decision toset up new RL
RRC: Measurement Report (e1a / e1c)
NBAP: Radio Link Setup Response
Start TX/RX
ALCAP:ERQ
ALCAP:ECF
RRC: Active Set Update Complete
UE
NBAP: Radio Link Setup Request – for Soft Handover
NBAP: Radio Link Addition Request – for Softer Handover
NBAP: Radio Link Addition Response
REQ_ON_SHOCELL_REPL_
EQ_ON_SHOCELL_DEL_R
EQ_ON_SHOCELL_ADD_R
ES_ON_SHOSUCC_UPDAT
++
NUMBER OF SUCCESSFUL AS UPDATENUMBER OF SUCCESSFUL AS UPDATEFOR THE CELL UNDER OBSERVATIONFOR THE CELL UNDER OBSERVATION
TOTAL NUMBER OF NOT PERIODOICAL TOTAL NUMBER OF NOT PERIODOICAL MEASUREMENT REPORT (1A,1B,1C) MEASUREMENT REPORT (1A,1B,1C) RECEIVED BY THE CELL UNDER OBSERVATIONRECEIVED BY THE CELL UNDER OBSERVATION
UPDATED FOR ALL THE CELLS WITHIN AS WHEN MEAS. REPORT IS RECEIVEUPDATED FOR ALL THE CELLS WITHIN AS WHEN MEAS. REPORT IS RECEIVEDD
REQ_ON_SHOCELL_REPL_
EQ_ON_SHOCELL_DEL_R
EQ_ON_SHOCELL_ADD_R
ES_ON_SHOSUCC_UPDAT
++
NUMBER OF SUCCESSFUL AS UPDATENUMBER OF SUCCESSFUL AS UPDATEFOR THE CELL UNDER OBSERVATIONFOR THE CELL UNDER OBSERVATION
TOTAL NUMBER OF NOT PERIODOICAL TOTAL NUMBER OF NOT PERIODOICAL MEASUREMENT REPORT (1A,1B,1C) MEASUREMENT REPORT (1A,1B,1C) RECEIVED BY THE CELL UNDER OBSERVATIONRECEIVED BY THE CELL UNDER OBSERVATION
UPDATED FOR ALL THE CELLS WITHIN AS WHEN MEAS. REPORT IS RECEIVEUPDATED FOR ALL THE CELLS WITHIN AS WHEN MEAS. REPORT IS RECEIVEDD
)____________
____________
____________(
)__________(*100_
NRTFORSHOONREQDELCELLNRTFORSHOONREQREPLCELL
NRTFORSHOONREQADDCELLRTFORSHOONREQDELCELL
RTFORSHOONREQREPLCELLRTFORSHOONREQADDCELLsum
NRTFORSHOONUPDATESSUCCRTFORSHOONUPDATESSUCCsumSuccessSHO
++++
++=
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ISHO Success Rate (HO from WCDMA to GSM)
KPI evaluation – events R99/ISHO
KPI construction - ISHO success rate
Normally ISHO may fail due to missing target cell or the cell is not good enough coverage, interference or configuration problem
From the measurement point of view the ISHO is divided into two phases:
• Inter-system measurement
• Inter-system handover
The Real Time and Non Real Time Inter System HO differs in nature. Therefore the ISHO KPI can be splittedin RT and NRT parts. In case of Multi-RAB having at least one RT RAB only RT counters are updated and the Handover is performed using RT handover procedure
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ISHO Success RateExample NBAP and RRC compressed mode signalling for a CS service ISHO
CNUE Node B RNC
RRC: Measurement Report
RRC: Measurement Control
NBAP: Radio Link Reconfiguration Prepare
NBAP: Radio Link Reconfiguration Ready
NBAP: Radio Link Reconfiguration Commit
RRC: Physical Channel Reconfiguration
RRC: Physical Channel Reconfiguration Complete
NBAP: Compressed Mode Command
RRC: Measurement Report
RRC: Measurement Control
NBAP: Compressed Mode Command
RRC: Measurement Report
RRC: Measurement Control
RRC: Handover from UTRAN Command
GSM BSIC Verification
GSM RSSI Measurement
ISHO triggering
Initial Compressed Mode Configuration
RANAP: Relocation Required
RANAP: Relocation Command
RANAP: IU Release Command
RANAP: IU Release Complete
IS_HHO_Att_xx
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KPI construction - ISHO Success Rate, RT
ISHO success rate for RT services (RNC_300g)
• The Real Time and Non Real Time Inter System HO differs in nature. Therefore the ISHO KPI is splitted in RT and NRT parts.
• The Multi RAB ISHOs are only updated to RT counters. This because the NRT RB follows the RT parameters when part of RT + NRT Multi RAB.
• ISHO success rate for NRT services (RNC_301e)
) _RT]CELL_BLOCK[ATT_ISHO_
OWN_RT]CELL_SHUTD[ATT_ISHO_ _AMR_RT][ATT_GANHOPS_RT]T_UL_DCH_W[IS_HHO_AT
T_SB_RT][IS_HHO_AT SC_RT]T_LB_RSVR_[IS_HHO_AT IM_RT]T_LB_RES_L[IS_HHO_AT
OT_RT]T_LB_PTX_T[IS_HHO_AT OT_RT]T_LB_PRX_T[IS_HHO_ATUL_RT]T_LB_CAPA_[IS_HHO_AT
DL_RT]T_LB_CAPA_[IS_HHO_AT LL]T_EMERG_CA[IS_HHO_AT
T]T_IM_IMS_R[IS_HHO_ATNO_RT]T_CPICH_EC[IS_HHO_ATCP_RT]T_CPICH_RS[IS_HHO_AT
_RT]T_DPCH_PWR[IS_HHO_ATWR_RT]T_UE_TRX_P[IS_HHO_ATRT]_UL_DCH_Q_IS_HHO_ATT(
)K_RT]_CELL_BLOC[SUCC_ISHO
DOWN_RT]_CELL_SHUT[SUCC_ISHOO_AMR_RT][SUCC_GANHHO_WPS_RT][SUCC_IS_H
__________
____________
_______UL_RT]HO_LB_CAPA[SUCC_IS_H
_DL_RT]HO_LB_CAPA[SUCC_IS_H____
__________
___________
____________(*100
__
++++
++++++
+++++
+++
+++++++
++++
++++
+
=sum
RTSBHHOISSUCCRTSCRSVRLBHHOISSUCC
RTLIMRESLBHHOISSUCCRTTOTPTXLBHHOISSUCC
RTTOTPRXLBHHOISSUCC
CALLEMERGHHOISSUCC
RTIMSIMHHOISSUCCRTECNOCPICHHHOISSUCC
RTRSCPCPICHHHOISSUCCRTPWRDPCHDLHHOISSUCC
RTPWRTRXUEHHOISSUCCRTQDCHULHHOISSUCCsum
RTSuccessISHO
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KPI construction - ISHO Success Rate, NRT• ISHO success rate for NRT services (RNC_301e)
)NRTELL_BLOCK_ATT_ISHO_CN_NRTLL_SHUTDOWTT_ISHO_CE____
____________
____________
____________
__________
___________
____________(
)_NRTCELL_BLOCKSUCC_ISHO_
OWN_NRTCELL_SHUTDSUCC_ISHO_____
____________
____________
____________
__________
___________
____________(*100
301_
+++++++++++
+++
+++
++++++++
+++
=
ANRTSBATTHHOIS
NRTSCRSVRLBATTHHOISNRTLIMRESLBATTHHOIS
NRTTOTPTXLBATTHHOISNRTTOTPRXLBATTHHOIS
NRTULCAPALBATTHHOISNRTDLCAPALBATTHHOIS
NRTIMSIMATTHHOISNRTECNOCPICHATTHHOIS
NRTRSCPCPICHATTHHOISNRTPWRDPCHDLATTHHOIS
NRTPWRTRXUEATTHHOISNRTQDCHULATTHHOISsum
NRTSBHHOISSUCC
NRTSCRSVRLBHHOISSUCCNRTLIMRESLBHHOISSUCC
NRTTOTPTXLBHHOISSUCCNRTTOTPRXLBHHOISSUCC
NRTULCAPALBHHOISSUCCNRTDLCAPALBHHOISSUCC
NRTIMSIMHHOISSUCCNRTECNOCPICHHHOISSUCC
NRTRSCPCPICHHHOISSUCCNRTPWRDPCHDLHHOISSUCC
NRTPWRTRXUEHHOISSUCCNRTQDCHULHHOISSUCCsum
eRNC
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KPIs for ISHO measurement started for RT and NRT (RNC_294c, RNC_295c)
KPIs for not good enough cells for RT and NRT, RNC_296a, and RNC_297a)
ISHO success rate for RT services (RNC_300g)
ISHO success rate for NRT services (RNC_301e)
KPI evaluation – events R99/ISHO
KPI construction - ISHO success rate
•• HHO triggerHHO trigger
•• UL UL SIRSIRTargetTarget
•• UL UE powerUL UE power
•• DL RL powerDL RL power
•• CPICH RSCPCPICH RSCP
•• CPICH ECPICH Ecc/I/I00
•• IMSI basedIMSI based
•• Emergency callEmergency call
•• Load based RTWPLoad based RTWP
•• Load based TCPLoad based TCP
•• Load based HW / logical res.Load based HW / logical res.
•• Load based code res.Load based code res.
•• Services basedServices based
KPI 195a = % of successful active set updates
KPI 300g = % of successfully terminated ISHOs for RT RABs
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All NRT sessions, 100 % -drop rate
++++
++++
++
++
++
++
++
++++
++++++
++++++
⋅−
=
E])RM_D_D_STR[PS_REL_NO RE]RM_HS_D_ST[PS_REL_NO RE]RM_HS_E_ST[PS_REL_NO
_STRE]H_FAIL_D_D[PS_REL_OT D_STRE]H_FAIL_HS_[PS_REL_OT
E_STRE]H_FAIL_HS_[PS_REL_OT STRE]_FAIL_D_D_[PS_REL_RL
_STRE]_FAIL_HS_D[PS_REL_RL _STRE]_FAIL_HS_E[PS_REL_RL
M_D_D_BGRPS_REL_NOR M1022C50 +M_D_D_INTPS_REL_NOR M1022C49 +
M_HS_D_BGRPS_REL_NOR M1022C48 +M_HS_D_INTPS_REL_NOR M1022C47 +
M_HS_E_BGRPS_REL_NOR M1022C46 +M_HS_E_INTPS_REL_NOR M1022C45 +
BGR_FAIL_D_D_PS_REL_OTH M1022C68 +INT_FAIL_D_D_PS_REL_OTH M1022C67 +
_BGR_FAIL_HS_DPS_REL_OTH M1022C66 +_INT_FAIL_HS_DPS_REL_OTH M1022C65 +
_BGR_FAIL_HS_EPS_REL_OTH M1022C64 +_INT_FAIL_HS_EPS_REL_OTH M1022C63 +
GRFAIL_D_D_BPS_REL_RL_ M1022C62 +NTFAIL_D_D_IPS_REL_RL_ M1022C61 +
BGRFAIL_HS_D_PS_REL_RL_ M1022C60+INTFAIL_HS_D_PS_REL_RL_ M1022C59 +
BGRFAIL_HS_E_PS_REL_RL_ M1022C58+INTFAIL_HS_E_PS_REL_RL_ M1022C57_STRE])H_FAIL_D_D[PS_REL_OT D_STRE]H_FAIL_HS_[PS_REL_OT
E_STRE]H_FAIL_HS_[PS_REL_OT STRE]_FAIL_D_D_[PS_REL_RL
_STRE]_FAIL_HS_D[PS_REL_RL _STRE]_FAIL_HS_E[PS_REL_RL
_BGR]H_FAIL_D_D[PS_REL_OT _INT]H_FAIL_D_D[PS_REL_OT
D_BGR]H_FAIL_HS_[PS_REL_OT D_INT]H_FAIL_HS_[PS_REL_OT
E_BGR]H_FAIL_HS_[PS_REL_OT E_INT]H_FAIL_HS_[PS_REL_OT
BGR]_FAIL_D_D_[PS_REL_RL INT]_FAIL_D_D_[PS_REL_RL
_BGR]_FAIL_HS_D[PS_REL_RL _INT]_FAIL_HS_D[PS_REL_RL
E_BGR]L_FAIL_HS_)[PS_REL_R E_INT]L_FAIL_HS_([PS_REL_R
%100%100
[%] Ratio SuccessSession Packet RNC_922b
All combinations
HSDPA + HSUPA, HSDPA + DCH, DCH + DCH
Service level evaluations (PS/Release 5/6)The Packet Session Success Ratio for Streaming, Interactive and Background Services.
KPI construction – packet session success ratio
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The HSUPA Success Ratio for Streaming, Interactive and Background Services from user perspective.• This KPI is based on Packet Call Measurement (M1022)
• Switching from HSPA to R99 is considered as a normal HSPA release in the formula.
100%
GRE_TO_D_D_BPS_SWI_HS_NTE_TO_D_D_IPS_SWI_HS_
TREE_TO_D_D_SPS_SWI_HS_M_HS_E_BGRPS_REL_NOR M1022C46
+M_HS_E_INTPS_REL_NOR M1022C45 EM_HS_E_STRPS_REL_NOR
_BGR_FAIL_HS_EPS_REL_OTH M1022C64 +_INT_FAIL_HS_EPS_REL_OTH M1022C63
_STRE_FAIL_HS_EPS_REL_OTHBGRFAIL_HS_E_PS_REL_RL_ M1022C58
+INTFAIL_HS_E_PS_REL_RL_ M1022C57STREFAIL_HS_E_PS_REL_RL_
_BGR_FAIL_HS_EPS_REL_OTH M1022C64 +_INT_FAIL_HS_EPS_REL_OTH M1022C63
_STRE_FAIL_HS_EPS_REL_OTHBGRFAIL_HS_E_PS_REL_RL_ M1022C58
+INTFAIL_HS_E_PS_REL_RL_ M1022C57STREFAIL_HS_E_PS_REL_RL_
100%
ePerspectiv User From Ratio Success HSUPA RNC_921b
⋅
+++
++
+++
+++
−
=
Here success ratio expressed as 1 Here success ratio expressed as 1 –– failure ratiofailure ratio
Service level evaluations (HSUPA only)
KPI construction – packet session success ratio
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Top (N) drops
Cell and its Neighbour Cells availabilityAlarms/Tickets
Configuration & Parameter audit
SHO Success
Rate < 90%?
Conf OK ?
Site OK ?
ISHO Failures
Iurperformance Investigation Iur
Audit adjacent sites for alarms, Availability,
configuration and capacity
TrafficNeighbours’ Performance(use SHO success per adjscounters to identify badly
performing neighbours) & Map
3G Cell at RNC border?
NO
YES
New site ?
Analyse last detailed radio measurements
RF and IFHO neighbour optimisation
No cell found ratio
>40 %
ISHO Success
Rate < 90%
RF and ISHO neighbour optimisation
3G cell covers over a coverage
hole ?
3G cell at inter-RNC border ?
Wrong reference clock (10MHz tuning)
No cell found ratio > 90 % and enough
ADJG
2G Cell Doctor
2G Investigation : TCH blocking or
TCH seizure failure (interference)
NO
YES
YES
YES
NO
YES
NO
YES
YES
SHO
ISHO
Top issues
SHO based on DSR, CPICH EcNo difference, SHO branch setup fail
BTS/Iub
Relocation success in target RNC
HHO RSSI & BSIC time, ISHO cancellation
Max HSPA users in cell/RNC,RNC licensed capacity:Max AMR/Iups
throughput
HSDPA IFHO failures, reject CM
for IFHO
Call set up improvements (RU20)
KPI construction - packet call setup
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HSUPA Call Establishment RAB Establishment
++= TRESCH_EDCH_SPS_ATT_HSDBGRDSCH_EDCH_PS_ATT_HS_NTSCH_EDCH_IPS_ATT_HSD Attempts HSUPA RNC_928B
+++
++
++
+
=
TEDCH_UE_INETUP_FAIL_ SM1002C523 +GR_EDCH_UE_BSETUP_FAIL M1002C524 +
S_INT_EDCH_TRANSETUP_FAIL M1002C527S_BGR_EDCH_TRANSETUP_FAIL M1002C528 +
R_INT_EDCH_OTHESETUP_FAIL M1002C529 +R_BGR_EDCH_OTHESETUP_FAIL M1002C530 +
INT_EDCH_BTS_SETUP_FAIL M1002C525 +BGR_EDCH_BTS_SETUP_FAIL M1002C526 +
GRL_BTS_HW_B UL_DCH_SEM1002C518 +NTL_BTS_HW_I UL_DCH_SEM1002C517 +
A_USR_INTL_MAX_HSUP UL_DCH_SEM1002C515 +A_USR_BGRL_MAX_HSUP UL_DCH_SEM1002C516 +
_INTCANC_NA_ASEDCH_ALLO_ M1002C519 +_BGRCANC_NA_ASEDCH_ALLO_ M1002C520 +
RSS_EDCH_BGALLO_SUCCE M1002C532 +TSS_EDCH_INALLO_SUCCE M1002C531
RSS_EDCH_BGALLO_SUCCE M1002C532 +TSS_EDCH_INALLO_SUCCE M1002C531
TrafficNRTfor ity Accessibil ResourceHSUPA RNC_913a
Traffic + packet call measurement HSUPA failures
E-DCH allocation cancelled due to not acceptable active set Too much E-DCH users in cell / cell group, No BTS capacity available
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HSUPA Call Establishment RAB Establishment
+++++
+++++
++++++
++++
+++++
+++++
=
TR_EDCH_UE_SSETUP_FAILNT_EDCH_UE_ISETUP_FAIL M1002C523
GR_EDCH_UE_BSETUP_FAIL M1002C524S_STR_EDCH_TRANSETUP_FAIL
S_INT_EDCH_TRANSETUP_FAIL M1002C527S_BGR_EDCH_TRANSETUP_FAIL M1002C528
R_STR_EDCH_OTHESETUP_FAILR_INT_EDCH_OTHESETUP_FAIL M1002C529
R_BGR_EDCH_OTHESETUP_FAIL M1002C530STR_EDCH_BTS_SETUP_FAIL
INT_EDCH_BTS_SETUP_FAIL M1002C525BGR_EDCH_BTS_SETUP_FAIL M1002C526
R_BTS_HW_STUL_DCH_SELGRL_BTS_HW_B UL_DCH_SEM1002C518
NTL_BTS_HW_I UL_DCH_SEM1002C517_USR_STR_MAX_HSUPAUL_DCH_SEL
A_USR_INTL_MAX_HSUP UL_DCH_SEM1002C515A_USR_BGRL_MAX_HSUP UL_DCH_SEM1002C516
_STRCANC_NA_ASEDCH_ALLO__INTCANC_NA_ASEDCH_ALLO_ M1002C519
_BGRCANC_NA_ASEDCH_ALLO_ M1002C520RSS_EDCH_STALLO_SUCCE
RSS_EDCH_BGALLO_SUCCE M1002C532TSS_EDCH_INALLO_SUCCE M1002C531
Selections DCH-E RNC_923c
Traffic + packet call measurement HSUPA failures
E-DCH allocation cancelled due to not acceptable active set Too much E-DCH users in cell / cell group, No BTS capacity available
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HS-DSCH Serving Cell Change
The HS-DSCH Serving Cell Change success rate can be calculated as below
• It should be noted that the KPI above is not very accurate in cell level as denominator is incremented in the source cell (old serving cell) and numerator is incremented in the target cell (new serving cell)
• So this KPI is useful in RNC level
However in case the SCC failure rate is calculated then it is possible to find out under which HS-DSCH serving cell plenty of SCCs are failing (but this will not tell the cell to which the SCC is failing)
REASONOTHERSTARTEDSCCUPDSETACTIVESTARTEDSCC
ERRORSIRULSTARTEDSCCECNOCPICHSTARTEDSCC
SUCCESSFULBTSINTERSCCSUCCESSFULBTSINTRASCC100%ARNC
_______
_______
______733_
+++
+⋅=
REASONOTHERSTARTEDSCCUPDSETACTIVESTARTEDSCC
ERRORSIRULSTARTEDSCCECNOCPICHSTARTEDSCC
HER_DUE_TO_OTSCC_FAILED_DUE_TO_ACSCC_FAILED
ANSM_DUE_TO_TRSCC_FAILEDS_DUE_TO_BTSCC_FAILED_DUE_TO_UESCC_FAILED
100%Rate Failure SCC
_______
_______
+++
++++
⋅=
Intra-system hard handover measurement
Data in sourceNode B buffer lost
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HSDPA MAC-hs Efficiency
RNC_607c HSDPA MAC-hs efficiency (%)
• HSDPA “Retransmission ratio” between BTS and HSDPA Capable UEs done by MAC-hs
• Actually, this is the successfully sent MAC-hs PDUs divided by all transmitted MAC-hs PDUs including retransmissions
%100⋅
++
++
++
++
+++
++++
++++++
++++++
+++++
+++++
=
M_CODE_16QARETRANS_15 M5000C125+M_CODE_16QARETRANS_14 M5000C124+M_CODE_16QARETRANS_13 M5000C123+
M_CODE_16QARETRANS_12 M5000C122+M_CODE_16QARETRANS_11 M5000C121+M_CODE_16QARETRANS_10 M5000C120+
CODE_16QAMRETRANS_9_ M5000C119+CODE_16QAMRETRANS_8_ M5000C118+CODE_16QAMRETRANS_7_ M5000C117+
CODE_16QAMRETRANS_6_ M5000C116+_CODE_QPSKRETRANS_15 M5000C115+_CODE_QPSKRETRANS_14 M5000C114+
_CODE_QPSKRETRANS_13 M5000C113+_CODE_QPSKRETRANS_12 M5000C112+_CODE_QPSKRETRANS_11 M5000C111+
_CODE_QPSKRETRANS_10 M5000C110+CODE_QPSKRETRANS_9_ M5000C109+CODE_QPSKRETRANS_8_ M5000C108+
CODE_QPSKRETRANS_7_ M5000C107+CODE_QPSKRETRANS_6_ M5000C106+6QAM_15_CODE_1ORIG_TRANS M5000C105+
6QAM_14_CODE_1ORIG_TRANS M5000C104+6QAM_13_CODE_1ORIG_TRANS M5000C103+6QAM_12_CODE_1ORIG_TRANS M5000C102+
6QAM_11_CODE_1ORIG_TRANS M5000C101+6QAM_10_CODE_1ORIG_TRANS M5000C100+QAM_9_CODE_16ORIG_TRANS M5000C99+
QAM_8_CODE_16ORIG_TRANS M5000C98+QAM_7_CODE_16ORIG_TRANS M5000C97+QAM_6_CODE_16ORIG_TRANS M5000C96+
PSK_15_CODE_QORIG_TRANS M5000C95+PSK_14_CODE_QORIG_TRANS M5000C94+PSK_13_CODE_QORIG_TRANS M5000C93+
PSK_12_CODE_QORIG_TRANS M5000C92+PSK_11_CODE_QORIG_TRANS M5000C91+PSK_10_CODE_QORIG_TRANS M5000C90+
SK_9_CODE_QPORIG_TRANS M5000C89+SK_8_CODE_QPORIG_TRANS M5000C88+SK_7_CODE_QPORIG_TRANS M5000C87+
SK_6_CODE_QPORIG_TRANS M5000C86+CODE_16QAMRETRANS_5_ M5000C68CODE_16QAMRETRANS_4_ M5000C67
CODE_16QAMRETRANS_3_ M5000C66 CODE_16QAMRETRANS_2_ M5000C65CODE_16QAMRETRANS_1_ M5000C64
CODE_QPSKRETRANS_5_ M5000C63CODE_QPSKRETRANS_4_ M5000C62CODE_QPSKRETRANS_3_ M5000C61
CODE_QPSKRETRANS_2_ M5000C60CODE_QPSKRETRANS_1_ M5000C59QAM_5_CODE_16ORIG_TRANS M5000C58
QAM_4_CODE_16ORIG_TRANS M5000C57 QAM_3_CODE_16ORIG_TRANS M5000C56 QAM_2_CODE_16ORIG_TRANS M5000C55
QAM_1_CODE_16ORIG_TRANS M5000C54 SK_5_CODE_QPORIG_TRANS M5000C53 SK_4_CODE_QPORIG_TRANS M5000C52
SK_3_CODE_QPORIG_TRANS M5000C51 SK_2_CODE_QPORIG_TRANS M5000C50 SK_1_CODE_QPORIG_TRANS M5000C49 T_CL_5U_RETR_DIS MAC_HS_PDM5000C1 T_CL_4U_RETR_DIS MAC_HS_PDM5000C4 T_CL_3U_RETR_DIS MAC_HS_PDM5000C3
T_CL_2U_RETR_DIS MAC_HS_PDM5000C2 T_CL_1U_RETR_DIS MAC_HS_PDM5000C1 T_CL_0U_RETR_DIS MAC_HS_PDM5000C0
RNC_607c
HSDPA in WBTS measurement
Number of original PDUs
Number of re-transmitted PDUs
For each modulation and number of codes individual counter
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HSDPA Data Volume and ThroughputThe average active HS-DSCH MAC-d throughput from network perspective calculated as the HSDPA MAC-d throughput at BTS, divided by the active HS-DSCH time from the network perspective
The active time refers to the scheduled TTIs, i.e. when sending data
The throughput is looked at from MAC-d layer, i.e. how much MAC-d level data the HS-DSCH is able to successfully transfer to UEs using the scheduled TTIs, so this considers also the MAC-hs efficiency
RNC_722b [kbps] =
( )
500
SS_5)R_DIST_CLAHS_SCCH_PW M5000C74SS_4R_DIST_CLAHS_SCCH_PW M5000C73SS_R_DIST_CLAHS_SCCH_PW M5000C72
SS_2R_DIST_CLAHS_SCCH_PW M5000C71SS_1R_DIST_CLAHS_SCCH_PW M5000C70SS_0R_DIST_CLAHS_SCCH_PW M5000C69
1000
TSHS_MACD_BIDISCARDED_ M5000C127 -SS_MACD_BITRECEIVED_H M5000C126
++
+++
⋅3
Amount of data received in MAC-d PDUs by Node B –
amount of data discarded due to buffer overflow
Number of TTIs with HS-SCCH power< 0.1 W0.1-0.2 W0.2-0.4 W0.4-0.8 W0.8-16. W> 1.6 W
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Total Total numbernumber of of MACMAC--dd PDUsPDUsreceivedreceived byby NodeNode BB
1 1 MACMAC--dd PDU = 336 PDU = 336 oror 656 656 bitbit
IfIf 656 656 bitbit PDU PDU usedused, , KPI 608A KPI 608A notnotapplicableapplicable
AmountAmount of of datadatareceivedreceived in in MACMAC--ddPDUsPDUs byby NodeNode BB
ExampleExample: 1000 : 1000 PDUsPDUs withwith 336 336 bitbit + 1000 + 1000 PDUsPDUs withwith 656 656 bitbit
M5000C7 = 1000 + 1000 = 2000 M5000C7 = 1000 + 1000 = 2000 PDUsPDUs
M5000C126 = 1000 * 336 M5000C126 = 1000 * 336 bitbit + 1000 * 656 + 1000 * 656 bitbit = 992 = 992 KbitKbit
IfIf 656 656 bitbit PDU PDU usedused, KPI , KPI 606B 606B notnot applicableapplicable
HSDPA Data Volume and Throughput
KPI - statistic examples
KPI construction - Statistic examples
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PDUsMACddtransmitteofnumber
sionsretransmisnwithcorrectlydeliveredPDUsMACdofnumbernrateontransmissi n
____
________)1(_
+=
Example
100 PDUs with no re-transmission
16 PDUs with 1 re-transmission
3 PDUs with 2 re-transmissions
1 PDU with 3 re-transmissions
Transmission rate = (100 * 1 + 16 * 2 + 3 * 3 + 1 * 4) / (100 + 16 + 3 + 1)
Transmission rate = 145 / 120 = 1.21
1.21 transmissions over the air for 1 PDU 21% re-transmission overhead
KPI - statistic examples
KPI construction - Statistic examples
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E-DCH Throughput can be measured by RNC_952a
60ATIONPERIOD_DUR1000
8TA_VOLSDPA_UL_DANRT_EDCH_H M1023C10
[kbit/s] RNCat Throughput Average es-MACHSUPA 952_
⋅⋅⋅
= aRNC
1000
8101023
[kbit] RNCat Volume Data es-MACHSUPA 931_
⋅=
ATA_VOLHSDPA_UL_D NRT_EDCH_CM
aRNC
Amount of data transmitted in MAC-es PDUs over E-DCH
RU10 Reporting Suite –new KPIsStatistics measurementsStatistics measurements
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HS-DSCH Throughput
60ATIONPERIOD_DUR1000
8TA_VOLHS_DSCH_DA M1023C8
[kbit/s] RNCat Throughput Average d-MACHSDPA
⋅⋅⋅
=
1000
8TA_VOLHS_DSCH_DA M1023C8
[kbit] RNCat Volume Data d-MACSDPA
⋅=
H
Amount of data transmitted in MAC-d PDUs over HS-DSCH
RU10 Reporting Suite –new KPIsStatistics measurementsStatistics measurements
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R99 NRT Throughput DL
60ATIONPERIOD_DUR1000
8_DATA_VOLNRT_DCH_DL M1023C7
[kbit/s] RNCat Throughput Average d-MAC DL NRT R99
⋅⋅⋅
=
1000
8_DATA_VOLNRT_DCH_DL M1023C7
[kbit] RNCat Volume Data d-MAC DL RT 99
⋅=
NR
Amount of data transmitted in MAC-d PDUs over DCH
RU10 Reporting Suite –new KPIsStatistics measurementsStatistics measurements
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R99 NRT Throughput UL
60ATIONPERIOD_DUR1000
8_DATA_VOLNRT_DCH_UL M1023C6
[kbit/s] RNCat Throughput Average d-MAC ULNRT R99
⋅⋅⋅
=
1000
8_DATA_VOLNRT_DCH_UL M1023C6
[kbit] RNCat Volume Data d-MAC ULRT 99
⋅=
NR
Amount of data transmitted in MAC-d PDUs over DCH
RU10 Reporting Suite –new KPIsStatistics measurements
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Inter System Hard Handover Success Ratio [%]
)________
____________
____________
____________
____________
____________
____
__________
__________
____________
___________
___________
____________(
)_______
____________
____________
____________
____________
____________
____
__________
__________
____________
___________
___________
____________(*100
_
NRTSBATTHHOISRTSBATTHHOIS
NRTSCRSVRLBATTHHOISRTSCRSVRLBATTHHOIS
NRTLIMRESLBATTHHOISRTLIMRESLBATTHHOIS
NRTTOTPTXLBATTHHOISRTTOTPTXLBATTHHOIS
NRTTOTPRXLBATTHHOISRTTOTPRXLBATTHHOIS
NRTULCAPALBATTHHOISNRTDLCAPALBATTHHOIS
CALLEMERGATTHHOIS
NRTIMSIMATTHHOISRTIMSIMATTHHOIS
NRTECNOCPICHATTHHOISNRTRSCPCPICHATTHHOIS
NRTPWRDPCHDLATTHHOISNRTPWRTRXUEATTHHOIS
NRTQDCHULATTHHOISRTECNOCPICHATTHHOIS
RTRSCPCPICHATTHHOISRTPWRDPCHDLATTHHOIS
RTPWRTRXUEATTHHOISRTQDCHULATTHHOISsum
NRTSBHHOISSUCCRTSBHHOISSUCC
NRTSCRSVRLBHHOISSUCCRTSCRSVRLBHHOISSUCC
NRTLIMRESLBHHOISSUCCRTLIMRESLBHHOISSUCC
NRTTOTPTXLBHHOISSUCCRTTOTPTXLBHHOISSUCC
NRTTOTPRXLBHHOISSUCCRTTOTPRXLBHHOISSUCC
NRTULCAPALBHHOISSUCCNRTDLCAPALBHHOISSUCC
CALLEMERGHHOISSUCC
NRTIMSIMHHOISSUCCRTIMSIMHHOISSUCC
NRTECNOCPICHHHOISSUCCNRTRSCPCPICHHHOISSUCC
NRTPWRDPCHDLHHOISSUCCNRTPWRTRXUEHHOISSUCC
NRTQDCHULHHOISSUCCRTECNOCPICHHHOISSUCC
RTRSCPCPICHHHOISSUCCRTPWRDPCHDLHHOISSUCC
RTPWRTRXUEHHOISSUCCRTQDCHULHHOISSUCCsum
SuccessISHO
++++++++++
+++
++++
++++
+++
−++++++++++
++++
+++++
+++++
+
=
Load and Service (RAS51)
Based ISHO Success for both NRT and RT
Load and Service (RAS51)
Based ISHO Attempt for both NRT and RT
This KPI cover both NRT and RT
ISHO success
Further HHO trigger
Load based capacity rejection
KPI evaluation – events R99/ISHO
KPI construction - ISHO success rate
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RU10 Reporting Suite
• RNC level system program added
• Corrections to Capacity report
• Modifications to Service level report (Streaming class added+ some other corrections)
Report Topic Name Report Name Report ID1. System Program System Program RNC Level RSRAN0841. System Program System Program Cell Level RSRAN0002. Capacity RNC Capacity RSRAN0682. Capacity Node B Capacity RSRAN0662. Capacity Cell Capacity RSRAN0672. Capacity NRT Radio Bearer Statistics RSRAN0133. Service Level Service/Session Accessibility Analysis RSRAN0733. Service Level Service/Session Retainability Analysis RSRAN0793. Service Level RAB Holding Times RSRAN0213. Service Level Service Summary RSRAN0034. Traffic Allocated Traffic Amounts (R99 + HSPA) RSRAN0704. Traffic Cell Data Volume and Throughput at RNC RSRAN0774. Traffic Traffic Summary RSRAN0264. Traffic Used CE Capacity per RB Type in RNC RSRAN0224. Traffic Utilization Shares of Total Traffic Allocation Amounts RSRAN0715. Mobility and Handover Active Set Size for NRT-RT Traffic RSRAN0785. Mobility and Handover HSPA Serving Cell Change RSRAN0335. Mobility and Handover IFHO Adjacencies RSRAN0445. Mobility and Handover Inter-System Handover per Cause RSRAN0195. Mobility and Handover Inter-System Handover Performance RSRAN0235. Mobility and Handover Inter-System Handover Reasons RSRAN0185. Mobility and Handover ISHO Adjacencies RSRAN0455. Mobility and Handover Load Based HO Related Resources RSRAN0475. Mobility and Handover Load Based IFHO/ISHO Performance RSRAN0485. Mobility and Handover Load Based IFHO/ISHO Triggering RSRAN0495. Mobility and Handover Service Based IFHO/ISHO Performance RSRAN0505. Mobility and Handover SHO Adjacencies RSRAN0465. Mobility and Handover Soft Handover Performance RSRAN028
RNC_169e:DR + GAN HO added,
but load & service based counters
removed
Classes; KPI
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Module Version control
Ronald Fabian
RU10 level
Ronald Fabian
Status
Dr. Benedikt Aschermann11.10.2010RU20_v2.0
Dr. Benedikt Aschermann/
Dr. Dirk Rose
06.07.2009
28.08.2009
RU10_v1.0
RU10_v2.0
ContactDateVersion