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02 rn31572 en20gla1_kpi_overview
- 2. RN31572EN20GLA1
KPI Overview
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Soc Classification level
2 © Nokia Siemens Networks RN31572EN20GLA1
Course Content
KPI overview
Performance monitoring
Air interface and neighbor optimization
Capacity improvement
Traffic management
Paging and inter-RNC optimization
- 3. RN31572EN20GLA1
KPI Overview
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Soc Classification level
3 © Nokia Siemens Networks RN31572EN20GLA1
KPI overview
Principles 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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4 © Nokia Siemens Networks RN31572EN20GLA1
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:
- 5. RN31572EN20GLA1
KPI Overview
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5 © Nokia Siemens Networks RN31572EN20GLA1
Principles of 3G network optimization
Optimization 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 toTarget 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 points
Check 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 evaluation
event/
Action item
CAUSE
Index/level
/thresholds
COUNTER
Descriptive statistics
Key
Performance indication
Signaling/Traffic: RT/NRT
RRC/RAB/CORE
COUNTER
statistics
3G Causes
Vendor issue Evaluations
Uu; WBTS,
AAL2, RNC
Indication
KPI
Index/level/ thresholds
event/Action item/improvement
No activities
Optimisation/hysteretic
Signaling/user plane
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KPI Overview
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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 by
Accessibility, 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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KPI Overview
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%100*)___..(___
)__..(_____
attemptssetupcallallgeeventsallofNumber
setupscallsuccessfulgeresultdesiredwitheventsofNumber
KPI =
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(_)( −= ircTotalWbPwuudBmiRTWP
Load 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 Overview
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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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KPI Overview
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•• Use counter tables from NED/PDF dictionaryUse counter tables from NED/PDF dictionary
RNC radio network part counterRNC radio network part counter # 1xxx# 1xxx
RNC ATM /TP part counterRNC ATM /TP part counter # 5xx/8xx# 5xx/8xx
WW--BTS part counter/BTS part counter/ # 5xxx# 5xxx
HSPA/CQIHSPA/CQI
KPI strategy: Scenario descriptions
Principles of 3G network optimization
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KPI Overview
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Example of new counters for RU20
Separate counters for relocation
Counters- where to find ?
RNC ATM/TPRNC ATM/TP
part counterpart counter
# 500/800# 500/800
groupegroupe
IuB
RNC radio networkRNC 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/TPRNC ATM/TP
part counterpart counter
# 500/800# 500/800
groupegroupe
IuB
RNC radio networkRNC 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 RNC
More detailed
monitoring 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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KPI overview
Principles 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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KPI Overview
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17 © Nokia Siemens Networks RN31572EN20GLA1
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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KPI Overview
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RU20 New Counters and Measurements
Id Measurement
M513 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 Connection
M531 ATM Route Load
M532 ATM Interface
M546 SAAL signalling at UNI
M547 AAL5 protocol in DMX
M548 AAL2 signalling protocol at UNI
M549 AAL5 protocol in chorus
M550 AAL2 path CAC resource
M552 AAL2 signalling at NNI
M553 AAL2 Scheduling Performance in RNC
M563 TCP/IP Protocol
M592 Unit load
M594 WAC overload control
M608 Availability performance
M609 DSP Service statistics
M612 DSP state changes measurement
M615 DSP resource utilization
M617 DSP load measurement
M800 AAL2 Resource Reservation
M801 Iu-PS Performance
M802 SW License Key controlled Capacity
M803 RNC_RTP_RTCP, IP based Iu-CS
M804 RNC IP CAC, IP based IU
Platform measurements
Id M easurement
M1000 Cell resource
M1001 Service level
M1002 Traffic
M1003 L3 signalling at Iu
M1004 L3 signalling at Iur
M1005 L3 signalling at Iub
M1006 RRC signalling
M1007 Soft handover
M1008 Intra-system hard handover
M1009 L3 relocation signalling
M1010 Inter-system handover
M1011 Location services
M1012 Service area broadcast
M1013 Autodef SHO
M1014 Autodef IFHO
M1015 Autodef ISHO
M1016 RCPM OLPC
M1017 RCPM RLC
M1018 RCPM UEQ
M1020 A-GPS Server Interface
M1021 Iupc Interface
M1022 Packet Call
M1023 Cell Throughput
M1024 RCPM OLPC W CEL m easurement
M1025 RCPM OLPC RNC measurement
M1026 RCPM RLC W CEL measurement
M1027 RCPM RLC RNC measurement
M1028 AutoDef SHO DSR
M1031 WBTS Resource
RNW measurements
New RU10 Measurement
New RU20 Measurement
New RU20 Counters
Id Measurement
M5000 HSDPA in WBTS
M5001 WBTS HW Resource
M5002 Cell Throughput WBTS
M5003 Frame Protocol WBTS
M5101 FTM PDH Interface
M5102 FTM SDH Interface
M5105 FTM ATM Interface
M5106 FTM ATM VC Connection
M5107 FTM ATM VP Connection
M5110 FTM Ethernet Link
M5113 FTM Pseudowire MPLS
M5114 FTM PSN Tunnel IP
M5115 FTM AAL2 Scheduling Performance
M5116 FTM Timing over Packet Measurement
M5117 FTM IP statistics measurement
M5118 FTM PHB statistics measurement
Id Measurement
M5201 AXC PDH
M5202 AXC SDH
M5203 AXC IMA group
M5204 AXC IMA link
M5205 AXC ATM Interface
M5206 AXC ATM VC Connection
M5207 AXC ATM VP Connection
M5208 AXC AAL2 performance
M5209 AXC AAL5 performance
M5210 AXC Ethernet link
M5211 AXC Sonet/SDH protection group
M5212 AXC ATM Performance
M5213 AXC Pseudowire MPLS measurement
M5214 AXC PSN Tunnel IP
M5215 AAL2 scheduling performance in BTS
M5216 AXC Timing over Packet Measurement
M5217 AXC IP Statistics
M5218 AXC PHB statistics
WBTS measurements
AXC measurements
Only yellow are covered in the slideset
RCPM means Radio Connection Performance Measurement
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KPI Overview
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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 BTSRAN955
Broadcast of A-GPS Assistance DataRAN876
HSPA 72 Users Per CellRAN1686
Continuous Packet ConnectivityRAN1644
HSDPA 64QAMRAN1643
Flexible RLC (DL)RAN1638
HSUPA 2 ms TTIRAN1470
Fractional DPCHRAN1201
LTE interworkingRAN2067
Dual-Cell HSDPA 42MbpsRAN1906
Multiple BSIC IdentificationRAN1758
CS Voice Over HSPARAN1689
MIMORAN1642
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KPI Overview
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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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KPI Overview
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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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KPI Overview
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_CEMAX_AVAILM5001C0
_CEMIN_AVAILM5001C1
CEAVE_AVAIL_M5001C2
E_DLMAX_USED_CM5001C3
CE_ULMAX_USED_M5001C4
E_DLMIN_USED_CM5001C5
CE_ULMIN_USED_M5001C6
E_DLAVG_USED_CM5001C7
E_ULAVG_USED_CM5001C8
In memory of counter #In memory of counter #
RNC radio network part counterRNC radio network part counter # 1xxx# 1xxx
RNC ATM /TP part counter # 5xx/8xx
WW--BTS part counter/BTS part counter/ # 5xxx# 5xxx
HSPA/CQIHSPA/CQI
Counter scenario description within network elements
Principles of 3G network optimization
M5001 WBTS Baseband processing
M1005 L3 on IuB at RNC
M1005C0 : 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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KPI overview
Principles 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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KPI Overview
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Examples for KPI construction - factors
Factors affecting KPI
IMPACT of network
performance
BTS, RNC, PS Core, CS Core
performance
Performance of UE and
field measurement tools
Quality of network
implementation Application servers, IP Backbone
performanceQuality of network
operation and
maintenance
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KPI Overview
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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 - factors
Factors affecting KPI
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UE SensitivityUE Sensitivity
Impact on different performance by each UE
Examples for KPI construction - factors
Server
RNC
W-
BTS
UE
UE MeasurementUE Measurement
performanceperformance
((cell_DCHcell_DCH, cell, cell
reselection, ISHOreselection, ISHO
Power controlPower control
(RACH process)(RACH process)
SRNCSRNC
relocationrelocation
support, Cellsupport, Cell
FACH/PCHFACH/PCH
performanceperformance
UE powerUE power
consumptionconsumption
UE powerUE 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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KPI Overview
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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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KPI Overview
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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
RRCSetuptime
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 Rate
RRC Connection Setup & Access and Active negative
RABestablishment
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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 = RRCCSSR = RRC setupsetup SR *SR * RABRAB 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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KPI Overview
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UE
RRC: Connection Request
RRC Connection Setup phase
Resource 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 Message
DIRECT TRANSFER (Call
Proceeding)
RANAP: RAB Assignment
Request
RRC: Radio Bearer Set-up
RRC: Radio Bearer Setup
Complete
RAB Connection Setup phase
Resource 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 rate
AMR CSSR
UE RNC
relation
RNCUE
RRCRRC setupsetup RABRAB setupsetup
from end user perspective (RNC 565f)
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KPI Overview
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sallocationDCHPSforattempts
sallocationDCHPSsuccessful
SSSRPS
____
___
_ =
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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KPI Overview
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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
WBTS
MAC-hs
Uu
UE
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Soc Classification level
37 © Nokia Siemens Networks RN31572EN20GLA1
PSbyselectionsDSCHHS
entsestablishmDSCHHS
ityaccessibilHSDPA ___
_
_ −
−
=
PS decides to allocate HS-DSCH
But HS-DSCH really established ?HSDPA Accessibility
Service level evaluations (Traffic measurement)
KPI construction – HSDPA accessibility (1/2)
- 38. RN31572EN20GLA1
KPI Overview
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Soc Classification level
38 © Nokia Siemens Networks RN31572EN20GLA1
%100
ERS_BGR)X_HSDPA_USDCH_SEL_MA4761002ERS_INTX_HSDPA_USDCH_SEL_MA4751002
TAL_BGR_IUB_HS_TOSETUP_FAILM1002C425CH_BGR_BTS_HS_DSSETUP_FAILM1002C424
H_BGR_UE_HS_DSCSETUP_FAILM1002C423CH_BGR_RNC_HS_DSSETUP_FAILM1002C421
TAL_INT_IUB_HS_TOSETUP_FAILM1002C417CH_INT_BTS_HS_DSSETUP_FAILM1002C416
H_INT_UE_HS_DSCSETUP_FAILM1002C415CH_INT_RNC_HS_DSSETUP_FAILM1002C413
H_RET_BGRREJ_HS_DSCM1002C402H_RET_INTREJ_HS_DSCM1002C401
ERS_BGRX_HSDPA_USDCH_SEL_MAM1002C476ERS_INTX_HSDPA_USDCH_SEL_MAM1002C475
RCH_FLOW_BGALLO_HS_DSM1002C389TCH_FLOW_INALLO_HS_DSM1002C385
RCH_FLOW_BGALLO_HS_DSM1002C389TCH_FLOW_INALLO_HS_DSM1002C385
605_ ⋅
++
++
++
++
++
++
++
++
+
=
CMCM
bRNC
Setup
failures
Rejections (radio
resources, too
much 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_DSCH
would have been selected but the number of possible HS-DSCH users were exceeded are
included in the formula
- 39. RN31572EN20GLA1
KPI Overview
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Soc Classification level
39 © Nokia Siemens Networks RN31572EN20GLA1
failurestoduereleasesHSDPAreleasesHSDPAnormal
releasesHSDPAnormal
ratesuccesssessionHSDPA
______
__
___
+
=
ratedropsessionHSDPAratesuccesssessionHSDPA ___1___ −=
Service level evaluations (Traffic measurement)
KPI construction – HSDPA Retainability
%100
SCH_BGR_FAIL_HS_DEL_ALLO_RLM1002C482RSCH_INT_FAIL_HS_DEL_ALLO_RLM1002C479R
SCH_BGRH_FAIL_HSDEL_ALLO_OTM1002C411RSCH_INTH_FAIL_HSDEL_ALLO_OTM1002C408R
H_BGRORM_HS_DSCREL_ALLO_NM1002C410H_INTORM_HS_DSCREL_ALLO_NM1002C407
H_BGRORM_HS_DSCREL_ALLO_NM1002C410H_INTORM_HS_DSCREL_ALLO_NM1002C407
609_ ⋅
++
+++
++
+
=aRNC
HSDPAHSDPA RetainabilityRetainability (HSDPA only)(HSDPA only)
Current RNC_609a HSDPA Retainability for NRT Traffic
- 40. RN31572EN20GLA1
KPI Overview
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Soc Classification level
40 © Nokia Siemens Networks RN31572EN20GLA1
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
- 41. RN31572EN20GLA1
KPI Overview
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Soc Classification level
41 © Nokia Siemens Networks RN31572EN20GLA1
−
−
−
++
+
+
+
++
+
=
T_CELL_D_ALLO_INHS_E_REQ_DM1022C217R_CELL_D_ALLO_BGHS_E_REQ_DM1022C218
-R_CELL_D_ALLO_STHS_E_REQ_DT_CELL_D_ALLO_INHS_D_REQ_DM1022C220
R_CELL_D_ALLO_BGHS_D_REQ_DM1022C221-R_CELL_D_ALLO_STHS_D_REQ_D
-RSCH_DCH_BGPS_ATT_HSDM1022C6+TSCH_DCH_INPS_ATT_HSDM1022C5
RESCH_DCH_STPS_ATT_HSDGRSCH_EDCH_BPS_ATT_HSDM1022C4
+NTSCH_EDCH_IPS_ATT_HSDM1022C3TRESCH_EDCH_SPS_ATT_HSD
GRS_D_ALLO_BHS_D_REQ_HM1022C26
+NTS_D_ALLO_IHS_D_REQ_HM1022C25TRES_D_ALLO_SHS_D_REQ_H+
GRS_D_ALLO_BHS_E_REQ_HM1022C24+NTS_D_ALLO_IHS_E_REQ_HM1022C23
TRES_D_ALLO_SHS_E_REQ_HGRS_E_ALLO_BHS_E_REQ_HM1022C21
+NTS_E_ALLO_IHS_E_REQ_HM1022C21TRES_E_ALLO_SHS_E_REQ_H
e[%]PerspectivUserfromRatioSuccessSetupHSDPARNC_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
- 42. RN31572EN20GLA1
KPI Overview
42
Soc Classification level
42 © Nokia Siemens Networks RN31572EN20GLA1
Cell resource/ cell actual availability
KPI construction - Call Blocking Rate
( )
( )DBRNWINEXISTWCELLAVAILsum
STATEWOINWCELLAVAILsum
tyAvailabiliCell
_____
____*100
_ =
This replace old
Cell Availability KPI
based on Code
Tree
Working state
CPICH of cell is visible
SC, RSCP... can be measured
RNC_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
- 43. RN31572EN20GLA1
KPI Overview
43
Soc Classification level
43 © Nokia Siemens Networks RN31572EN20GLA1
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
- 44. RN31572EN20GLA1
KPI Overview
44
Soc Classification level
44 © Nokia Siemens Networks RN31572EN20GLA1
( )
−
=
USERBYBLOCKEDWCELLAVAIL
DBRNWINEXISTWCELLAVAIL
sum
STATEWOINWCELLAVAILsum
stateBLUexcludingtyAvailabiliCell
____
_____
____*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)
- 45. RN31572EN20GLA1
KPI Overview
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Soc Classification level
45 © Nokia Siemens Networks RN31572EN20GLA1
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 to
the 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:
- 46. RN31572EN20GLA1
KPI Overview
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Soc Classification level
46 © Nokia Siemens Networks RN31572EN20GLA1
Cell availability RNC196
• Cell available has same level as in RU10
RU20 PCD2.0RU10 WN6.0
No change in Cell availability
Peaks down are due to
SW upgrades
PCD3.0 CD0.0
- 47. RN31572EN20GLA1
KPI Overview
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Soc Classification level
47 © Nokia Siemens Networks RN31572EN20GLA1
failurestoduereleasesreleasesnormal
failurestoduereleases
CDR ____
___
+=
Service level evaluations
KPI construction - Call Drop Rate
Dropped call:Dropped call:
All calls, which notAll calls, which not
terminate with aterminate with a
normal releasenormal release
No retain abilityNo retain ability
- 48. RN31572EN20GLA1
KPI Overview
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Soc Classification level
48 © Nokia Siemens Networks RN31572EN20GLA1
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 = 100RAB Success = 100 -- 100*(failures /success)100*(failures /success)
Service level evaluations
KPI construction - Call Drop Rate
- 49. RN31572EN20GLA1
KPI Overview
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Soc Classification level
49 © Nokia Siemens Networks RN31572EN20GLA1
KPI evaluation – events R99/SHO
KPI construction - SHO Failure vs. success Rate
crequeststreplacemenbrequestsdroparequestsaddition
updatessetactivesuccessful
ratesuccessSHO
1__1__1__
___
__
++
=
Here only the reliability of the feature itself isHere only the reliability of the feature itself is
checked. Problems like overlapping cells orchecked. Problems like overlapping cells or
specific adjacencies are not discussed yetspecific adjacencies are not discussed yet
CELL A
CELL B
CELL C
- 50. RN31572EN20GLA1
KPI Overview
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Soc Classification level
50 © Nokia Siemens Networks RN31572EN20GLA1
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: ActiveSet Update
Decision to
set up new RL
RRC: Measurement Report (e1a / e1c)
NBAP: Radio Link Setup Response
Start TX/RX
ALCAP:ERQ
ALCAP:ECF
RRC: ActiveSet UpdateComplete
UE
NBAP: Radio Link Setup Request – for Soft Handover
NBAP: Radio Link Addition Request – for Softer Handover
NBAP: Radio Link Addition Response
RNCBTS
RRC: ActiveSet Update
Decision to
set up new RL
RRC: Measurement Report (e1a / e1c)
NBAP: Radio Link Setup Response
Start TX/RX
ALCAP:ERQ
ALCAP:ECF
RRC: ActiveSet UpdateComplete
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
+
+
NUMBEROFSUCCESSFULASUPDATENUMBEROFSUCCESSFULASUPDATE
FORTHECELLUNDEROBSERVATIONFORTHECELLUNDEROBSERVATION
TOTALNUMBEROFNOT PERIODOICALTOTALNUMBEROFNOT PERIODOICAL
MEASUREMENT REPORT (1A,1B,1C)MEASUREMENT REPORT (1A,1B,1C)
RECEIVED BYTHECELLUNDEROBSERVATIONRECEIVED BYTHECELLUNDEROBSERVATION
UPDATED FORALLTHECELLSWITHIN ASWHEN MEAS. REPORT ISRECEIVEUPDATED FORALLTHECELLSWITHIN ASWHEN MEAS. REPORT ISRECEIVEDD
REQ_ON_SHOCELL_REPL_
EQ_ON_SHOCELL_DEL_R
EQ_ON_SHOCELL_ADD_R
ES_ON_SHOSUCC_UPDAT
+
+
NUMBEROFSUCCESSFULASUPDATENUMBEROFSUCCESSFULASUPDATE
FORTHECELLUNDEROBSERVATIONFORTHECELLUNDEROBSERVATION
TOTALNUMBEROFNOT PERIODOICALTOTALNUMBEROFNOT PERIODOICAL
MEASUREMENT REPORT (1A,1B,1C)MEASUREMENT REPORT (1A,1B,1C)
RECEIVED BYTHECELLUNDEROBSERVATIONRECEIVED BYTHECELLUNDEROBSERVATION
UPDATED FORALLTHECELLSWITHIN ASWHEN MEAS. REPORT ISRECEIVEUPDATED FORALLTHECELLSWITHIN ASWHEN MEAS. REPORT ISRECEIVEDD
)____________
____________
____________(
)__________(*100
_
NRTFORSHOONREQDELCELLNRTFORSHOONREQREPLCELL
NRTFORSHOONREQADDCELLRTFORSHOONREQDELCELL
RTFORSHOONREQREPLCELLRTFORSHOONREQADDCELLsum
NRTFORSHOONUPDATESSUCCRTFORSHOONUPDATESSUCCsum
SuccessSHO
++
++
+
+
=
- 52. RN31572EN20GLA1
KPI Overview
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Soc Classification level
52 © Nokia Siemens Networks RN31572EN20GLA1
ISHO Success Rate
Example NBAP and RRC compressed mode signalling for a CS service inter-system HO
CN
UE 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
- 53. RN31572EN20GLA1
KPI Overview
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Soc Classification level
53 © Nokia Siemens Networks RN31572EN20GLA1
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.
- 54. RN31572EN20GLA1
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Soc Classification level
54 © Nokia Siemens Networks RN31572EN20GLA1
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
- 55. RN31572EN20GLA1
KPI Overview
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Soc Classification level
55 © Nokia Siemens Networks RN31572EN20GLA1
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 /
s60ationperiod_dur1000
TSHS_MACD_BIDISCARDED_-SS_MACD_BITRECEIVED_H
606_
⋅⋅
=
[ ]MbitbRNC
1000
SS_MACD_BITRECEIVED_HM5000C126_
608_
=
- 57. RN31572EN20GLA1
KPI Overview
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Soc Classification level
57 © Nokia Siemens Networks RN31572EN20GLA1
KPI overview
Principles 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
- 58. RN31572EN20GLA1
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58 © Nokia Siemens Networks RN31572EN20GLA1
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.
- 59. RN31572EN20GLA1
KPI Overview
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Soc Classification level
59 © Nokia Siemens Networks RN31572EN20GLA1
2. Pre-defined Reports Overview (1) RU10
Full Report Set
Modified RU10
New RU10
System Program RNC Level RSRAN000
System Program Cell Level RSRAN084
RNC Capacity RSRAN068
RNC capacity usage RSRAN085
Node B Capacity RSRAN066
Cell Capacity RSRAN067
Iub Capacity RSRAN087
Cell Power RSRAN086
NRT DCH Allocations Statistics RSRAN097
NRT Radio Bearer Statistics RSRAN013
Service/Session Accessibility Analysis RSRAN073
Service/Session Accessability Detailed Analysis RSRAN105
Service/Session Retainability Analysis RSRAN079
Service/Session Retainability Detailed Analysis RSRAN106
RAB Holding Times RSRAN021
Service Summary RSRAN003
Allocated Traffic Amounts (R99 + HSPA) RSRAN070
Cell Data Volume and Throughput at RNC RSRAN077
Traffic Summary RSRAN026
Used CE Capacity per RB Type in RNC RSRAN022
Utilization Shares of Total Traffic Allocation Amounts RSRAN071
Packet Call RSRAN101
Traffic Model NW Dimensioning RSRAN088
Iur Traffic - L3 RSRAN100
Iub 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
- 60. RN31572EN20GLA1
KPI Overview
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Soc Classification level
60 © Nokia Siemens Networks RN31572EN20GLA1
2. Pre-defined Reports Overview (2)
RU10 Full Report Set
Modified RU10
New RU10
Active Set Size for NRT, RT Traffic RSRAN078
HSPA Serving Cell Change RSRAN033
HSPA Inter-Freq HHO RSRAN089
IFHO Adjacencies RSRAN044
InterSystem Handover per Cause RSRAN019
InterSystem Handover Performance RSRAN023
InterSystem Handover Reasons RSRAN018
ISHO Adjacencies RSRAN045
Load Based HO Related Resources RSRAN047
Load Based IFHO/ISHO Performance RSRAN048
Load Based IFHO/ISHO Triggering RSRAN049
Service Based IFHO/ISHO Performance RSRAN050
SHO Adjacencies RSRAN046
Soft Handover Performance RSRAN028
NBAP Signalling RSRAN027
RRC Signalling RSRAN038
PRACH Propagation Delay RSRAN104
HSPA Overview RSRAN092
HSPA Scheduling RSRAN091
CQI Distribution RSRAN039
HSPA Code and Modulation Usage RSRAN034
HSPA Power Distribution RSRAN074
Channel Switching and HSPA Layering RSRAN075
UE Power Headroom RSRAN090
MAC-hs Efficiency RSRAN040
MAC-hs Retransmissions by Code and Modulation Usage RSRAN041
Number 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
- 61. RN31572EN20GLA1
KPI Overview
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Soc Classification level
61 © Nokia Siemens Networks RN31572EN20GLA1
2. Pre-defined Reports Overview (3)
RU10 Full Report Set
Modified RU10
New RU10
ATM Interface Traffic Load RSRAN081
IP Interface Throughput RSRAN099
ATM VCC Traffic Load RSRAN083
ATM VPC Traffic Load RSRAN082
FTM Packet Transport Performance RSRAN076
FTM Performance RSRAN072
Iu-PS Throughputs RSRAN064
Iu-PS Throughputs (GTP + NP8S1 or NP2GE int) RSRAN104
Iu-CS RSRAN094
M3UA RSRAN093
ATM Iub Throughput RSRAN080
IP Iub Throughput (BTS pov) RSRAN095
Traffic on AAL5 RSRAN031
Traffic on ATM Layer RSRAN029
Traffic on Physical Medium SubLayer RSRAN030
IP Transport Resource Reservations RSRAN098
ATM Transport Resource Reservations RSRAN069
DSP Resource Usage RSRAN102
DSP State Changes RSRAN103
9. Hardware
8. Transport
Transport content extended to support new
IP based interfaces
New Hardware utilization monitoring
content created
- 62. RN31572EN20GLA1
KPI Overview
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Soc Classification level
62 © Nokia Siemens Networks RN31572EN20GLA1
2. Pre-defined Reports Overview (4)
RU20 (Version RS 5.3.1)
Modified RU20
Removed RU20
New RU20
System Program RNC Level RSRAN000
System Program Cell Level RSRAN084
RNC Capacity RSRAN068
RNC capacity usage RSRAN085
Node B Capacity RSRAN066
Cell Capacity RSRAN067
Iub Capacity RSRAN087
Cell Power RSRAN086
NRT DCH Allocations Statistics RSRAN097
NRT Radio Bearer Statistics RSRAN013
Service/Session Accessibility Analysis RSRAN073
Service/Session Accessability Detailed Analysis RSRAN105
Service/Session Retainability Analysis RSRAN079
Service/Session Retainability Detailed Analysis RSRAN106
RAB Holding Times RSRAN021
Service Summary RSRAN003
Allocated Traffic Amounts (R99 + HSPA) RSRAN070
Cell Data Volume and Throughput at RNC RSRAN077
Traffic Summary RSRAN026
Used CE Capacity per RB Type in RNC RSRAN022
Utilization Shares of Total Traffic Allocation Amounts RSRAN071
Packet Call RSRAN101
Traffic Model NW Dimensioning RSRAN088
Iur Traffic - L3 RSRAN100
Iub 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
- 63. RN31572EN20GLA1
KPI Overview
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Soc Classification level
63 © Nokia Siemens Networks RN31572EN20GLA1
2. Pre-defined Reports Overview (5)
RU20
Modified RU20
New RU20
Active Set Size for NRT, RT Traffic RSRAN078
HSPA Serving Cell Change RSRAN033
HSPA Inter-Freq HHO RSRAN089
IFHO Adjacencies RSRAN044
InterSystem Handover per Cause RSRAN019
InterSystem Handover Performance RSRAN023
InterSystem Handover Reasons RSRAN018
ISHO Adjacencies RSRAN045
Load Based HO Related Resources RSRAN047
Load Based IFHO/ISHO Performance RSRAN048
Load Based IFHO/ISHO Triggering RSRAN049
Service Based IFHO/ISHO Performance RSRAN050
SHO Adjacencies RSRAN046
Soft Handover Performance RSRAN028
NBAP Signalling RSRAN027
RRC Signalling RSRAN038
PRACH Propagation Delay RSRAN104
HSPA Overview RSRAN092
HSPA Scheduling RSRAN091
CQI Distribution RSRAN039
HSPA Code and Modulation Usage RSRAN034
HSPA Power Distribution RSRAN074
Channel Switching and HSPA Layering RSRAN075
UE Power Headroom RSRAN090
MAC-hs Efficiency RSRAN040
MAC-hs Retransmissions by Code and Modulation UsaRSRAN041
Number 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
- 64. RN31572EN20GLA1
KPI Overview
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64 © Nokia Siemens Networks RN31572EN20GLA1
2. Pre-defined Reports Overview (6)
RU20
Modified RU20
New RU20
ATM Interface Traffic Load RSRAN081
IP Interface Throughput RSRAN099
ATM VCC Traffic Load RSRAN083
ATM VPC Traffic Load RSRAN082
FTM Packet Transport Performance RSRAN076
FTM Performance RSRAN072
Iu-PS Throughputs RSRAN064
Iu-PS Throughputs (GTP + NP8S1 or NP2GE int) RSRAN104
Iu-CS RSRAN094
M3UA RSRAN093
ATM Iub Throughput RSRAN080
IP Iub Throughput (BTS pov) RSRAN095
Traffic on AAL5 RSRAN031
Traffic on ATM Layer RSRAN029
Traffic on Physical Medium SubLayer RSRAN030
IP Transport Resource Reservations RSRAN098
ATM Transport Resource Reservations RSRAN069
DSP Resource Usage RSRAN102
DSP State Changes RSRAN103
8. Hardware
8. Transport
- 65. RN31572EN20GLA1
KPI Overview
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Soc Classification level
65 © Nokia Siemens Networks RN31572EN20GLA1
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 Dur min
R NC_1906a R99 PS att #
R NC_5059a NR T Dur min
R NC_5066a Intra-RNC HH O Att, C S #
R NC_5067a Intra-RNC HH O Att, PS #
R NC_1879b Avg HSDPA end usr thp kbps
R NC_1883b HSUPA Act Cell Thp kbps
R NC_5068a MTC Share %
R NC_231d RAB SR AMR Voice %
R NC_737b M in per Drop Voice m in
R NC_232e RAB SR UDI %
R NC_738b M in per Drop UDI m in
R 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 E
R NC_5051b Iu-PS D ata per drop, IP M bit
R NC_5050b Iu-PS D ata per drop, ATM M bit
R NC_943a R99 Setup SR, NR T %
R NC_5007a R99 Setup 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
- 66. RN31572EN20GLA1
KPI Overview
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Soc Classification level
66 © Nokia Siemens Networks RN31572EN20GLA1
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
- 67. RN31572EN20GLA1
KPI Overview
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Soc Classification level
67 © Nokia Siemens Networks RN31572EN20GLA1
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”
- 68. RN31572EN20GLA1
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Soc Classification level
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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
- 70. RN31572EN20GLA1
KPI Overview
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Soc Classification level
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KPI overview
Principles 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
- 71. RN31572EN20GLA1
KPI Overview
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Soc Classification level
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Principles of 3G network optimization
Target issues for performance optimizations are toTarget 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
- 72. RN31572EN20GLA1
KPI Overview
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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
- 73. RN31572EN20GLA1
KPI Overview
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Soc Classification level
73 © Nokia Siemens Networks RN31572EN20GLA1
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
- 74. RN31572EN20GLA1
KPI Overview
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Soc Classification level
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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
- 75. RN31572EN20GLA1
KPI Overview
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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 >14.4M
DL RAB Bit rate
counter ranges
- 76. RN31572EN20GLA1
KPI Overview
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Soc Classification level
76 © Nokia Siemens Networks RN31572EN20GLA1
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”
- 77. RN31572EN20GLA1
KPI Overview
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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
- 78. RN31572EN20GLA1
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RAN1509
RAB 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
- 79. RN31572EN20GLA1
KPI Overview
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Soc Classification level
79 © Nokia Siemens Networks RN31572EN20GLA1
RAB setup Bitrates uplink -example
0%
20%
40%
60%
80%
100%
13.03.2010__00:00:00
13.03.2010__03:00:00
13.03.2010__06:00:00
13.03.2010__09:00:00
13.03.2010__12:00:00
13.03.2010__15:00:00
13.03.2010__18:00:00
13.03.2010__21:00:00
14.03.2010__00:00:00
14.03.2010__03:00:00
14.03.2010__06:00:00
14.03.2010__09:00:00
14.03.2010__12:00:00
14.03.2010__15:00:00
14.03.2010__18:00:00
14.03.2010__21:00:00
15.03.2010__00:00:00
15.03.2010__03:00:00
15.03.2010__06:00:00
15.03.2010__09:00:00
15.03.2010__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
- 80. RN31572EN20GLA1
KPI Overview
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80 © Nokia Siemens Networks RN31572EN20GLA1
RAB setup Bitrates downlink -example
0%
20%
40%
60%
80%
100%13.03.2010__00:00:00
13.03.2010__03:00:00
13.03.2010__06:00:00
13.03.2010__09:00:00
13.03.2010__12:00:00
13.03.2010__15:00:00
13.03.2010__18:00:00
13.03.2010__21:00:00
14.03.2010__00:00:00
14.03.2010__03:00:00
14.03.2010__06:00:00
14.03.2010__09:00:00
14.03.2010__12:00:00
14.03.2010__15:00:00
14.03.2010__18:00:00
14.03.2010__21:00:00
15.03.2010__00:00:00
15.03.2010__03:00:00
15.03.2010__06:00:00
15.03.2010__09:00:00
15.03.2010__12:00:00
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)
- 81. RN31572EN20GLA1
KPI Overview
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• HSPA UL and HSPA DL distribution of
the total utilized CE capacity
▪20%,
▪40%,
▪60%,
▪80%,
▪100%
RAN 1312
Channel 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 the
WBts. It is a completly new concept in
comparison to the existing counters since the new
new ones are showing percentage of utilization.
helping the customer to trigger the investments for CEs‘ expansions.
- 82. RN31572EN20GLA1
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82 © Nokia Siemens Networks RN31572EN20GLA1
RAN 1312
Channel 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
- 83. RN31572EN20GLA1
KPI Overview
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Soc Classification level
83 © Nokia Siemens Networks RN31572EN20GLA1
Total CE Utilization share in UL –example
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
11.03.2010__09:00:00
11.03.2010__11:00:00
11.03.2010__13:00:00
11.03.2010__15:00:00
11.03.2010__17:00:00
11.03.2010__19:00:00
11.03.2010__21:00:00
11.03.2010__23:00:00
12.03.2010__01:00:00
12.03.2010__03:00:00
12.03.2010__05:00:00
12.03.2010__07:00:00
12.03.2010__09:00:00
12.03.2010__11:00:00
12.03.2010__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 BTS
RNC_731A
- 84. RN31572EN20GLA1
KPI Overview
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Soc Classification level
84 © Nokia Siemens Networks RN31572EN20GLA1
CE HSPA Utilization share in UL +Max HSDPA users-
example
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
11.03.2010__09:00:00
11.03.2010__11:00:00
11.03.2010__13:00:00
11.03.2010__15:00:00
11.03.2010__17:00:00
11.03.2010__19:00:00
11.03.2010__21:00:00
11.03.2010__23:00:00
12.03.2010__01:00:00
12.03.2010__03:00:00
12.03.2010__05:00:00
12.03.2010__07:00:00
12.03.2010__09:00:00
12.03.2010__11:00:00
12.03.2010__13:00:00
12.03.2010__15:00:00
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 in
BTS RNC_948A
Avg ratio of Used CE for DL for HSUPA in
BTS RNC_947A
- 85. RN31572EN20GLA1
KPI Overview
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Soc Classification level
85 © Nokia Siemens Networks RN31572EN20GLA1
RAN1136
Separate Counters for Relocations
The 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
- 86. RN31572EN20GLA1
KPI Overview
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Soc Classification level
86 © Nokia Siemens Networks RN31572EN20GLA1
Separate Counters for Relocations
2G-Core
BSCAbis A
3G-Core
RNCIub Iu
RNCIub
Iu
Iur
UMTS
GSM
New counters for Inter
RAT HHO
Relocated UE
New counters for
SRNS and Inter RNC
HHO Relocated UE
Current Relocation
RANAP:Iu Release Complete
Existing counters for
L3 layer related
Relocation signal
Existing counters
for air interference
related relocation
RRC signaling
No more WCell in AS for the current RNC
i.e. last RL deleted in current RNC
CS:RNC commands the UE the GSM
PS:RNC detects UE has moved
Inter RNC HHO
needed SRNS
relocation needed
- 87. RN31572EN20GLA1
KPI Overview
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Soc Classification level
87 © Nokia Siemens Networks RN31572EN20GLA1
RAN1136
Separate Counters for Incoming Relocations
RRC_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_ATT
M 1001C810 ServiceLevel RRC_RELOC_ACC _COMP
M 1001C651 ServiceLevel RAB_RELOC_STP_ATT_PS_STREA
M 1001C817 ServiceLevel RAB_RELOC_STP_ATT_PS_INT
M 1001C826 ServiceLevel RAB_RELOC_STP_ATT_PS_BGR
M 1001C653 ServiceLevel RAB_RELOC_STP_ATT_CS_VOICE
M 1001C657 ServiceLevel RAB_RELOC_STP_ATT_CS_STREA
M 1001C655 ServiceLevel RAB_RELOC_STP_ATT_CS_CONV
M 1001C652 ServiceLevel RAB_RELOC_AC C_COM P_PS_STREA
M 1001C819 ServiceLevel RAB_RELOC_AC C_COM P_PS_INT
M 1001C828 ServiceLevel RAB_RELOC_AC C_COM P_PS_BGR
M 1001C654 ServiceLevel RAB_RELOC_AC C_COM P_CS_VOICE
M 1001C658 ServiceLevel RAB_RELOC_AC C_COM P_CS_STREA
M 1001C656 ServiceLevel RAB_RELOC_AC C_COM P_CS_CONV
- 88. RN31572EN20GLA1
KPI Overview
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Soc Classification level
88 © Nokia Siemens Networks RN31572EN20GLA1
RAN1136
Separate Counters for HHO, ISHO and Relocations only
Outgoing relocations
ISHO
IFHO
Reloc
M1001C647 ServiceLevel RAB_ACT_REL_CS_VOICE_ISHO
M1001C649 ServiceLevel RAB_ACT_REL_CS_STREA_ISHO
M1001C648 ServiceLevel RAB_ACT_REL_CS_CONV_ISH O
M1001C805 ServiceLevel RAB_ACT_REL_PS_BGR _ISHO
M1001C807 ServiceLevel RAB_ACT_REL_PS_STREA_ISHO
M1001C804 ServiceLevel RAB_ACT_REL_PS_INTER_ISHO
M1001C646 ServiceLevel RAB_ACT_REL_CS_STREA_H HO
M1001C644 ServiceLevel RAB_ACT_REL_CS_VOICE_HH O
M1001C801 ServiceLevel RAB_ACT_REL_PS_INTER_HHO
M1001C645 ServiceLevel RAB_ACT_REL_CS_CONV_HHO
M1001C802 ServiceLevel RAB_ACT_REL_PS_BACKG_H HO
M1001C806 ServiceLevel RAB_ACT_REL_PS_STREA_HHO
M 1001C153 ServiceLevel RAB_ACT_REL_CS_STREA_SRN C
M 1001C151 ServiceLevel RAB_ACT_REL_CS_CON V_SR NC
M 1001C169 ServiceLevel RAB_ACT_REL_PS_STREA_SRNC
M 1001C171 ServiceLevel RAB_ACT_REL_PS_INTER_SRNC
M 1001C167 ServiceLevel RAB_ACT_REL_PS_CONV_SRNC
M 1001C172 ServiceLevel RAB_ACT_REL_PS_BAC KG_SRN C
M 1001C143 ServiceLevel RAB_ACT_REL_CS_VOICE_SRN C
Existing
counters, but
not for HHO
anymore
Inter RNC
HHO
Inter System
HHO
- 89. RN31572EN20GLA1
KPI Overview
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Soc Classification level
89 © Nokia Siemens Networks RN31572EN20GLA1
CSSR – PS NRT
entsestablishmRABPSforattempts
entsestablishmRABPSsuccessful
setupconnectionPSRRCduringnsreselectiocell
setupsconnectionPSRRCforattemptsrepetetive
setupsconnectionPSRRCforattempts
setupconnectionPSRRCduringnsreselectiocell
setupsconnectionPSRRCoffailures
setupsconnectionPSRRCforattempts
CSSRPS
____
___
*
______
______
_____
______
_____
_____
_
−
−
−
−
=
Service level evaluations (PS)
KPI construction - call setup success rate
- 90. RN31572EN20GLA1
KPI Overview
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Soc Classification level
90 © Nokia Siemens Networks RN31572EN20GLA1
• 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
- 91. RN31572EN20GLA1
KPI Overview
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Soc Classification level
91 © Nokia Siemens Networks RN31572EN20GLA1
•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_PATTSRIOR_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 part
RAB part
PS Call Setup Success Rate (CSSR)
- 92. RN31572EN20GLA1
KPI Overview
92
Soc Classification level
92 © Nokia Siemens Networks RN31572EN20GLA1
• Includes PS NRT traffic
(Interactive & Background) but
not PS RT traffic
⋅
_DCH_BGRPS_ATT_DCHM1022C8+_DCH_INTPS_ATT_DCHM1022C7
D_ALLO_BGRD_D_REQ_D_M1022C32+D_ALLO_INTD_D_REQ_D_M1022C31
100
Request in DL: DCH Allocated in DL: DCH
Request in UL: DCH
Allocated in UL: DCH
Interactive RAB
Service level evaluations (PS/Release 99)
KPI construction – packet call setup success rate
- 93. RN31572EN20GLA1
KPI Overview
93
Soc Classification level
93 © Nokia Siemens Networks RN31572EN20GLA1
=
GRSCH_EDCH_BPS_ATT_HSDM1022C4+NTSCH_EDCH_IPS_ATT_HSDM1022C3
GRS_E_ALLO_BHS_E_REQ_HM1022C21+NTS_E_ALLO_IHS_E_REQ_HM1022C21
e[%]PerspectivUserfromRatioSuccessSetupHSUPARNC_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
- 94. RN31572EN20GLA1
KPI Overview
94
Soc Classification level
94 © Nokia Siemens Networks RN31572EN20GLA1
++
+
+
++
+
+
+
⋅
=
_DCH_BGRPS_ATT_DCHM1022C8+_DCH_INTPS_ATT_DCHM1022C7+
RSCH_DCH_BGPS_ATT_HSDM1022C6TSCH_DCH_INPS_ATT_HSDM1022C5+
GRSCH_EDCH_BPS_ATT_HSDM1022C4+NTSCH_EDCH_IPS_ATT_HSDM1022C3
D_ALLO_BGRD_D_REQ_D_M1022C32+D_ALLO_INTD_D_REQ_D_M1022C31+
R_D_ALLO_BGHS_D_REQ_DM1022C30+T_D_ALLO_INHS_D_REQ_DM1022C29+
R_D_ALLO_BGHS_E_REQ_DM1022C28T_D_ALLO_INHS_E_REQ_DM1022C27+
GRS_D_ALLO_BHS_D_REQ_HM1022C26+NTS_D_ALLO_IHS_D_REQ_HM1022C25+
GRS_D_ALLO_BHS_E_REQ_HM1022C24+NTS_D_ALLO_IHS_E_REQ_HM1022C23+
GRS_E_ALLO_BHS_E_REQ_HM1022C22+NTS_E_ALLO_IHS_E_REQ_HM1022C21
[%]RatioSuccessSetupSessionPacketRNC_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
- 95. RN31572EN20GLA1
KPI Overview
95
Soc Classification level
95 © Nokia Siemens Networks RN31572EN20GLA1
• 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
- 96. RN31572EN20GLA1
KPI Overview
96
Soc Classification level
96 © Nokia Siemens Networks RN31572EN20GLA1
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 successfully
established voice calls
For PS KPI = % of successfully
established PS calls
- 97. RN31572EN20GLA1
KPI Overview
97
Soc Classification level
97 © Nokia Siemens Networks RN31572EN20GLA1
• 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
- 98. RN31572EN20GLA1
KPI Overview
98
Soc Classification level
98 © Nokia Siemens Networks RN31572EN20GLA1
• 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
- 99. RN31572EN20GLA1
KPI Overview
99
Soc Classification level
99 © Nokia Siemens Networks RN31572EN20GLA1
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.)
- 100. RN31572EN20GLA1
KPI Overview
100
Soc Classification level
100 © Nokia Siemens Networks RN31572EN20GLA1
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
- 101. RN31572EN20GLA1
KPI Overview
101
Soc Classification level
101 © Nokia Siemens Networks RN31572EN20GLA1
Service level evaluations (CS)
KPI construction - Call Drop Rate
RAB considered Connection UERAB considered Connection UE -- CNCN
CNUE
)__________
__________
__________
_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
- 102. RN31572EN20GLA1
KPI Overview
102
Soc Classification level
102 © Nokia Siemens Networks RN31572EN20GLA1
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
- 103. RN31572EN20GLA1
KPI Overview
103
Soc Classification level
103 © Nokia Siemens Networks RN31572EN20GLA1
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: ActiveSet Update
Decision to
set up new RL
RRC: Measurement Report (e1a / e1c)
NBAP: Radio Link Setup Response
Start TX/RX
ALCAP:ERQ
ALCAP:ECF
RRC: ActiveSet UpdateComplete
UE
NBAP: Radio Link Setup Request – for Soft Handover
NBAP: Radio Link Addition Request – for Softer Handover
NBAP: Radio Link Addition Response
RNCBTS
RRC: ActiveSet Update
Decision to
set up new RL
RRC: Measurement Report (e1a / e1c)
NBAP: Radio Link Setup Response
Start TX/RX
ALCAP:ERQ
ALCAP:ECF
RRC: ActiveSet UpdateComplete
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
+
+
NUMBEROFSUCCESSFULASUPDATENUMBEROFSUCCESSFULASUPDATE
FORTHECELLUNDEROBSERVATIONFORTHECELLUNDEROBSERVATION
TOTALNUMBEROFNOT PERIODOICALTOTALNUMBEROFNOT PERIODOICAL
MEASUREMENT REPORT (1A,1B,1C)MEASUREMENT REPORT (1A,1B,1C)
RECEIVED BYTHECELLUNDEROBSERVATIONRECEIVED BYTHECELLUNDEROBSERVATION
UPDATED FORALLTHECELLSWITHIN ASWHEN MEAS. REPORT ISRECEIVEUPDATED FORALLTHECELLSWITHIN ASWHEN MEAS. REPORT ISRECEIVEDD
REQ_ON_SHOCELL_REPL_
EQ_ON_SHOCELL_DEL_R
EQ_ON_SHOCELL_ADD_R
ES_ON_SHOSUCC_UPDAT
+
+
NUMBEROFSUCCESSFULASUPDATENUMBEROFSUCCESSFULASUPDATE
FORTHECELLUNDEROBSERVATIONFORTHECELLUNDEROBSERVATION
TOTALNUMBEROFNOT PERIODOICALTOTALNUMBEROFNOT PERIODOICAL
MEASUREMENT REPORT (1A,1B,1C)MEASUREMENT REPORT (1A,1B,1C)
RECEIVED BYTHECELLUNDEROBSERVATIONRECEIVED BYTHECELLUNDEROBSERVATION
UPDATED FORALLTHECELLSWITHIN ASWHEN MEAS. REPORT ISRECEIVEUPDATED FORALLTHECELLSWITHIN ASWHEN MEAS. REPORT ISRECEIVEDD
)____________
____________
____________(
)__________(*100
_
NRTFORSHOONREQDELCELLNRTFORSHOONREQREPLCELL
NRTFORSHOONREQADDCELLRTFORSHOONREQDELCELL
RTFORSHOONREQREPLCELLRTFORSHOONREQADDCELLsum
NRTFORSHOONUPDATESSUCCRTFORSHOONUPDATESSUCCsum
SuccessSHO
++
++
+
+
=
- 104. RN31572EN20GLA1
KPI Overview
104
Soc Classification level
104 © Nokia Siemens Networks RN31572EN20GLA1
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 splitted
in 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
- 105. RN31572EN20GLA1
KPI Overview
105
Soc Classification level
105 © Nokia Siemens Networks RN31572EN20GLA1
ISHO Success Rate
Example NBAP and RRC compressed mode signalling for a CS service ISHO
CN
UE 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
- 106. RN31572EN20GLA1
KPI Overview
106
Soc Classification level
106 © Nokia Siemens Networks RN31572EN20GLA1
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_ATSC_RT]T_LB_RSVR_[IS_HHO_ATIM_RT]T_LB_RES_L[IS_HHO_AT
OT_RT]T_LB_PTX_T[IS_HHO_ATOT_RT]T_LB_PRX_T[IS_HHO_ATUL_RT]T_LB_CAPA_[IS_HHO_AT
DL_RT]T_LB_CAPA_[IS_HHO_ATLL]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
- 107. RN31572EN20GLA1
KPI Overview
107
Soc Classification level
107 © Nokia Siemens Networks RN31572EN20GLA1
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
- 108. RN31572EN20GLA1
KPI Overview
108
Soc Classification level
108 © Nokia Siemens Networks RN31572EN20GLA1
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
•• ULUL 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
- 109. RN31572EN20GLA1
KPI Overview
109
Soc Classification level
109 © Nokia Siemens Networks RN31572EN20GLA1
All NRT sessions, 100 % -drop rate
++
++
++
++
+
+
+
+
+
+
+
+
+
+
++
++
++
++
++
++
++
++
⋅−
=
E])RM_D_D_STR[PS_REL_NORE]RM_HS_D_ST[PS_REL_NORE]RM_HS_E_ST[PS_REL_NO
_STRE]H_FAIL_D_D[PS_REL_OTD_STRE]H_FAIL_HS_[PS_REL_OT
E_STRE]H_FAIL_HS_[PS_REL_OTSTRE]_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_NORM1022C50+M_D_D_INTPS_REL_NORM1022C49+
M_HS_D_BGRPS_REL_NORM1022C48+M_HS_D_INTPS_REL_NORM1022C47+
M_HS_E_BGRPS_REL_NORM1022C46+M_HS_E_INTPS_REL_NORM1022C45+
BGR_FAIL_D_D_PS_REL_OTHM1022C68+INT_FAIL_D_D_PS_REL_OTHM1022C67+
_BGR_FAIL_HS_DPS_REL_OTHM1022C66+_INT_FAIL_HS_DPS_REL_OTHM1022C65+
_BGR_FAIL_HS_EPS_REL_OTHM1022C64+_INT_FAIL_HS_EPS_REL_OTHM1022C63+
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_OTD_STRE]H_FAIL_HS_[PS_REL_OT
E_STRE]H_FAIL_HS_[PS_REL_OTSTRE]_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_OTD_INT]H_FAIL_HS_[PS_REL_OT
E_BGR]H_FAIL_HS_[PS_REL_OTE_INT]H_FAIL_HS_[PS_REL_OT
BGR]_FAIL_D_D_[PS_REL_RLINT]_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_RE_INT]L_FAIL_HS_([PS_REL_R
%100%100
[%]RatioSuccessSessionPacketRNC_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
- 110. RN31572EN20GLA1
KPI Overview
110
Soc Classification level
110 © Nokia Siemens Networks RN31572EN20GLA1
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_NORM1022C46
+M_HS_E_INTPS_REL_NORM1022C45EM_HS_E_STRPS_REL_NOR
_BGR_FAIL_HS_EPS_REL_OTHM1022C64+_INT_FAIL_HS_EPS_REL_OTHM1022C63
_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_OTHM1022C64+_INT_FAIL_HS_EPS_REL_OTHM1022C63
_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%
ePerspectivUserFromRatioSuccessHSUPARNC_921b
⋅
+
++
+
+
++
+
++
+
−
=
Here success ratio expressed as 1Here success ratio expressed as 1 –– failure ratiofailure ratio
Service level evaluations (HSUPA only)
KPI construction – packet session success ratio
- 111. RN31572EN20GLA1
KPI Overview
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Soc Classification level
111 © Nokia Siemens Networks RN31572EN20GLA1
Top (N) drops
Cell and its Neighbour
Cells availability
Alarms/Tickets
Configuration &
Parameter audit
SHO
Success
Rate < 90%?
Conf OK ?
Site OK ?
ISHO
Failures
Iur
performance Investigation Iur
Audit adjacent sites for
alarms, Availability,
configuration and capacity
TrafficNeighbours’ Performance
(use SHO success per adjs
counters 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
- 112. RN31572EN20GLA1
KPI Overview
112
Soc Classification level
112 © Nokia Siemens Networks RN31572EN20GLA1
HSUPA Call Establishment RAB
Establishment
++= TRESCH_EDCH_SPS_ATT_HSDBGRDSCH_EDCH_PS_ATT_HS_NTSCH_EDCH_IPS_ATT_HSDAttemptsHSUPARNC_928B
++
+
+
+
+
+
+
=
TEDCH_UE_INETUP_FAIL_SM1002C523+GR_EDCH_UE_BSETUP_FAILM1002C524+
S_INT_EDCH_TRANSETUP_FAILM1002C527S_BGR_EDCH_TRANSETUP_FAILM1002C528+
R_INT_EDCH_OTHESETUP_FAILM1002C529+R_BGR_EDCH_OTHESETUP_FAILM1002C530+
INT_EDCH_BTS_SETUP_FAILM1002C525+BGR_EDCH_BTS_SETUP_FAILM1002C526+
GRL_BTS_HW_BUL_DCH_SEM1002C518+NTL_BTS_HW_IUL_DCH_SEM1002C517+
A_USR_INTL_MAX_HSUPUL_DCH_SEM1002C515+A_USR_BGRL_MAX_HSUPUL_DCH_SEM1002C516+
_INTCANC_NA_ASEDCH_ALLO_M1002C519+_BGRCANC_NA_ASEDCH_ALLO_M1002C520+
RSS_EDCH_BGALLO_SUCCEM1002C532+TSS_EDCH_INALLO_SUCCEM1002C531
RSS_EDCH_BGALLO_SUCCEM1002C532+TSS_EDCH_INALLO_SUCCEM1002C531
TrafficNRTforityAccessibilResourceHSUPARNC_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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KPI Overview
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Soc Classification level
113 © Nokia Siemens Networks RN31572EN20GLA1
HSUPA Call Establishment RAB
Establishment
++
+++
+++
++
+++
+++
++
++
+++
++
+++
++
=
TR_EDCH_UE_SSETUP_FAILNT_EDCH_UE_ISETUP_FAILM1002C523
GR_EDCH_UE_BSETUP_FAILM1002C524S_STR_EDCH_TRANSETUP_FAIL
S_INT_EDCH_TRANSETUP_FAILM1002C527S_BGR_EDCH_TRANSETUP_FAILM1002C528
R_STR_EDCH_OTHESETUP_FAILR_INT_EDCH_OTHESETUP_FAILM1002C529
R_BGR_EDCH_OTHESETUP_FAILM1002C530STR_EDCH_BTS_SETUP_FAIL
INT_EDCH_BTS_SETUP_FAILM1002C525BGR_EDCH_BTS_SETUP_FAILM1002C526
R_BTS_HW_STUL_DCH_SELGRL_BTS_HW_BUL_DCH_SEM1002C518
NTL_BTS_HW_IUL_DCH_SEM1002C517_USR_STR_MAX_HSUPAUL_DCH_SEL
A_USR_INTL_MAX_HSUPUL_DCH_SEM1002C515A_USR_BGRL_MAX_HSUPUL_DCH_SEM1002C516
_STRCANC_NA_ASEDCH_ALLO__INTCANC_NA_ASEDCH_ALLO_M1002C519
_BGRCANC_NA_ASEDCH_ALLO_M1002C520RSS_EDCH_STALLO_SUCCE
RSS_EDCH_BGALLO_SUCCEM1002C532TSS_EDCH_INALLO_SUCCEM1002C531
SelectionsDCH-ERNC_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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KPI Overview
114
Soc Classification level
114 © Nokia Siemens Networks RN31572EN20GLA1
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
SUCCESSFULBTSINTERSCCSUCCESSFULBTSINTRASCC
100%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%RateFailureSCC
_______
_______
+
++
+
+++
⋅=
Intra-system hard handover measurement
Data in source
Node B buffer lost
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KPI Overview
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Soc Classification level
115 © Nokia Siemens Networks RN31572EN20GLA1
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_15M5000C125+M_CODE_16QARETRANS_14M5000C124+M_CODE_16QARETRANS_13M5000C123+
M_CODE_16QARETRANS_12M5000C122+M_CODE_16QARETRANS_11M5000C121+M_CODE_16QARETRANS_10M5000C120+
CODE_16QAMRETRANS_9_M5000C119+CODE_16QAMRETRANS_8_M5000C118+CODE_16QAMRETRANS_7_M5000C117+
CODE_16QAMRETRANS_6_M5000C116+_CODE_QPSKRETRANS_15M5000C115+_CODE_QPSKRETRANS_14M5000C114+
_CODE_QPSKRETRANS_13M5000C113+_CODE_QPSKRETRANS_12M5000C112+_CODE_QPSKRETRANS_11M5000C111+
_CODE_QPSKRETRANS_10M5000C110+CODE_QPSKRETRANS_9_M5000C109+CODE_QPSKRETRANS_8_M5000C108+
CODE_QPSKRETRANS_7_M5000C107+CODE_QPSKRETRANS_6_M5000C106+6QAM_15_CODE_1ORIG_TRANSM5000C105+
6QAM_14_CODE_1ORIG_TRANSM5000C104+6QAM_13_CODE_1ORIG_TRANSM5000C103+6QAM_12_CODE_1ORIG_TRANSM5000C102+
6QAM_11_CODE_1ORIG_TRANSM5000C101+6QAM_10_CODE_1ORIG_TRANSM5000C100+QAM_9_CODE_16ORIG_TRANSM5000C99+
QAM_8_CODE_16ORIG_TRANSM5000C98+QAM_7_CODE_16ORIG_TRANSM5000C97+QAM_6_CODE_16ORIG_TRANSM5000C96+
PSK_15_CODE_QORIG_TRANSM5000C95+PSK_14_CODE_QORIG_TRANSM5000C94+PSK_13_CODE_QORIG_TRANSM5000C93+
PSK_12_CODE_QORIG_TRANSM5000C92+PSK_11_CODE_QORIG_TRANSM5000C91+PSK_10_CODE_QORIG_TRANSM5000C90+
SK_9_CODE_QPORIG_TRANSM5000C89+SK_8_CODE_QPORIG_TRANSM5000C88+SK_7_CODE_QPORIG_TRANSM5000C87+
SK_6_CODE_QPORIG_TRANSM5000C86+CODE_16QAMRETRANS_5_M5000C68CODE_16QAMRETRANS_4_M5000C67
CODE_16QAMRETRANS_3_M5000C66CODE_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_TRANSM5000C58
QAM_4_CODE_16ORIG_TRANSM5000C57QAM_3_CODE_16ORIG_TRANSM5000C56QAM_2_CODE_16ORIG_TRANSM5000C55
QAM_1_CODE_16ORIG_TRANSM5000C54SK_5_CODE_QPORIG_TRANSM5000C53SK_4_CODE_QPORIG_TRANSM5000C52
SK_3_CODE_QPORIG_TRANSM5000C51SK_2_CODE_QPORIG_TRANSM5000C50SK_1_CODE_QPORIG_TRANSM5000C49
T_CL_5U_RETR_DISMAC_HS_PDM5000C1T_CL_4U_RETR_DISMAC_HS_PDM5000C4T_CL_3U_RETR_DISMAC_HS_PDM5000C3
T_CL_2U_RETR_DISMAC_HS_PDM5000C2T_CL_1U_RETR_DISMAC_HS_PDM5000C1T_CL_0U_RETR_DISMAC_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
- 116. RN31572EN20GLA1
KPI Overview
116
Soc Classification level
116 © Nokia Siemens Networks RN31572EN20GLA1
HSDPA Data Volume and Throughput
The 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_PWM5000C74SS_4R_DIST_CLAHS_SCCH_PWM5000C73SS_R_DIST_CLAHS_SCCH_PWM5000C72
SS_2R_DIST_CLAHS_SCCH_PWM5000C71SS_1R_DIST_CLAHS_SCCH_PWM5000C70SS_0R_DIST_CLAHS_SCCH_PWM5000C69
1000
TSHS_MACD_BIDISCARDED_M5000C127-SS_MACD_BITRECEIVED_HM5000C126
++
+++
⋅
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 W
0.1-0.2 W
0.2-0.4 W
0.4-0.8 W
0.8-16. W
> 1.6 W
- 117. RN31572EN20GLA1
KPI Overview
117
Soc Classification level
117 © Nokia Siemens Networks RN31572EN20GLA1
TotalTotal numbernumber ofof
MACMAC--dd PDUsPDUs
receivedreceived byby NodeNode BB
11 MACMAC--dd PDU = 336PDU = 336
oror 656656 bitbit
IfIf 656656 bitbit PDUPDU usedused,,
KPI 608AKPI 608A notnot
applicableapplicable
AmountAmount ofof datadata
receivedreceived inin MACMAC--dd
PDUsPDUs byby NodeNode BB
ExampleExample: 1000: 1000 PDUsPDUs withwith 336336 bitbit + 1000+ 1000 PDUsPDUs withwith 656656 bitbit
M5000C7 = 1000 + 1000 = 2000M5000C7 = 1000 + 1000 = 2000 PDUsPDUs
M5000C126 = 1000 * 336M5000C126 = 1000 * 336 bitbit + 1000 * 656+ 1000 * 656 bitbit = 992= 992 KbitKbit
IfIf 656656 bitbit PDUPDU usedused, KPI, KPI
606B606B notnot applicableapplicable
HSDPA Data Volume and Throughput
KPI - statistic examples
KPI construction - Statistic examples
- 118. RN31572EN20GLA1
KPI Overview
118
Soc Classification level
118 © Nokia Siemens Networks RN31572EN20GLA1
PDUsMACddtransmitteofnumber
sionsretransmisnwithcorrectlydeliveredPDUsMACdofnumbern
rateontransmissi 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
- 119. RN31572EN20GLA1
KPI Overview
119
Soc Classification level
119 © Nokia Siemens Networks RN31572EN20GLA1
E-DCH Throughput can be measured by RNC_952a
60ATIONPERIOD_DUR1000
8TA_VOLSDPA_UL_DANRT_EDCH_HM1023C10
[kbit/s]RNCatThroughputAveragees-MACHSUPA952_
⋅⋅
⋅
=
aRNC
1000
8101023
[kbit]RNCatVolumeDataes-MACHSUPA931_
⋅
=
ATA_VOLHSDPA_UL_DNRT_EDCH_CM
aRNC
Amount of data transmitted in
MAC-es PDUs over E-DCH
RU10 Reporting Suite –new KPIs
Statistics measurementsStatistics measurements
- 120. RN31572EN20GLA1
KPI Overview
120
Soc Classification level
120 © Nokia Siemens Networks RN31572EN20GLA1
HS-DSCH Throughput
60ATIONPERIOD_DUR1000
8TA_VOLHS_DSCH_DAM1023C8
[kbit/s]RNCatThroughputAveraged-MACHSDPA
⋅⋅
⋅
=
1000
8TA_VOLHS_DSCH_DAM1023C8
[kbit]RNCatVolumeDatad-MACSDPA
⋅
=
H
Amount of data transmitted in
MAC-d PDUs over HS-DSCH
RU10 Reporting Suite –new KPIs
Statistics measurementsStatistics measurements