190664395 accepted 3g ran key perfomance indicators as 21032001

5/28/2018 190664395 Accepted 3G RAN Key Perfomance Indicators as 21032001

http:///reader/full/190664395-accepted-3g-ran-key-perfomance-indicators-as-210320

DN00279399Version 1.0 en Draft

Nokia NetworksAvailable to Nokia business partners

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3G RAN Key Performance Indicators

Document type: Work InstructionCreator:Reviewer:Approver:Date approved: 31.10.2000Function:





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The information in this document is subject to change without notice and describes only the service product defined in the introduction of thisdocumentation. This document is intended for the use of Nokia's customers only for the purposes of the agreement under which the document issubmitted, and no part of it may be reproduced or transmitted in any form or means without the prior written permission of Nokia. The document has beenprepared to be used by professional and properly trained personnel, and the customer assumes full responsibility when using it. Nokia welcomes customercomments as part of the process of continuous development and improvement of the documentation.

The methods and procedures mentioned in this document cannot be considered binding unless so defined in the agreement made between Nokia and thecustomer. Nokia has made all reasonable efforts to ensure that the instructions contained in the document are adequate and free of material errors andomissions. Nokia will, if necessary, explain issues which may not be covered by the document.

Nokia's liability for any errors in the document is limited to the documentary correction of errors. Nokia WILL NOT BE RESPONSIBLE IN ANY EVENTFOR ERRORS IN THIS DOCUMENT OR FOR ANY DAMAGES, INCIDENTAL OR CONSEQUENTIAL (INCLUDING MONETARY LOSSES), that mightarise from the use of this document or the information in it.

This document and the product it describes are considered protected by copyright according to the applicable laws.

NOKIA logo is a registered trademark of Nokia Corporation.

Other product names mentioned in this document may be trademarks of their respective companies, and they are mentioned for identification purposesonly.

Copyright Nokia 1999. All rights reserved.





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Table of contents1. Purpose......................................................................................................................................42. RAN Key performance Indicators ...............................................................................................4

2.1 Average Uplink Load [dBm].............................................................................................6

2.2 Average Downlink Load [dBm] ........................................................................................62.3 Average RACH Throughput [kbit/s] .................................................................................62.4 Average FACH Throughput [kbit/s]..................................................................................72.5 Average PCH Throughput [kbit/s]....................................................................................72.6 RRC Setup and Access Complete Ratio [%] ...................................................................72.7 RRC Drop Ratio [%] ........................................................................................................82.8 RAB Setup and Access Complete Ratio, Voice [%].........................................................82.9 RAB Setup and Access Complete Ratio, RT Service Other Than Voice [%] ...................82.10 Service Setup Success Ratio [%]....................................................................................92.11 RAB Drop Ratio, Voice [%]..............................................................................................92.12 RAB Drop Ratio, RT Services Other Than Voice [%].......................................................102.13 RAB Drop Ratio, NRT Services [%].................................................................................10

2.14 Soft Handover Overhead [%] ..........................................................................................112.15 Hard Handover Fail Ratio [%]..........................................................................................112.16 UL Dedicated Channel Throughput [kbit/s]......................................................................11

2.16.1 CS Voice Call ....................................................................................................122.16.2 CS Data Call Conversational Class ...................................................................122.16.3 CS Data Call Streaming Class...........................................................................122.16.4 PS Data Call Conversational Class ...................................................................122.16.5 PS Data Call Streaming Class...........................................................................122.16.6 PS Data Call Intera Class..................................................................................132.16.7 PS Data Call Background Class ........................................................................13

2.17 DL Dedicated Channel Throughput [kbit/s]......................................................................132.17.1 CS Voice Call ....................................................................................................132.17.2 CS Data Call Conversational Class ...................................................................132.17.3 CS Data Call Streaming Class...........................................................................142.17.4 PS Data Call Conversational Class ...................................................................142.17.5 PS Data Call Streaming Class...........................................................................142.17.6 PS Data Call Intera Class..................................................................................142.17.7 PS Data Call Background Class ........................................................................14

3. References.................................................................................................................................15





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1. PURPOSE

This document defines various Key Performance Indicators (KPI) for Nokia 3G

Networks. The main focus is on formulas however, some numerical target values forKPIs are listed.

Currently only Radio Access Network KPIs are covered.

2. RAN KEY PERFORMANCE INDICATORS

In Table 1, RAN 1 Key Performance Indicators there is the summarization of currentunderstanding of KPIs to be followed in of 3G RAN Version 1. The KPI developmentwork is still ongoing, and the finalisation of used formulas and their target values canbe done only with practical knowledge of the 3G networks and measuredperformance data.

It should be noted that the listed performance goals are not any Nokiaguarantee values. Any change in measurements, calculation formula and/or usedcounters will effect to the listed goals.

The performance goals in the table below are stated as the average for a cell cluster,and the performance of individual cells may differ from the listed values.

The KPIs listed in the table are explained separately in corresponding subchapters.

Note1:The listed targets are obsolete if and when the load in the network is too low.

The load is considered to be too low if average number of calls per cell is lower than300 calls during busy hour.

Note 2:The listed targets are obsolete if and when the load in the network is higherthan the planned target load of the network or the actual traffic mix differsconsiderably from the planning assumptions.

Objects Metrics PerformanceGoals forAcceptance of a

New Network

PerformanceGoals for aMature Network

Capacity Average Uplink Load [dBm]





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Average PCH Throughput[kbit/s]

NA NA

UL Dedicated Channel

Throughput [kbit/s] *)

NA NA

DL Dedicated ChannelThroughput [kbit/s] *)

NA NA

Access RRC Setup and AccessComplete Ratio [%]

90% >= 95%

RAB Setup and AccessComplete Ratio, Voice [%]

92% >= 95%

RAB Setup and AccessComplete Ratio for RTservices other than voice(within the planned coveragearea of a service) [%]

>= 90% of theplanned locationprobability

>= 95% of theplanned locationprobability

Service Setup Success **) 80% >= 90%

Success RRC Drop Ratio [%]





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2.1 Average Uplink Load [dBm]

dBm)

4DenomPrxtot

3DenomPrxtot2DenomPrxtot

1DenomPrxtot0DenomPrxtot

4ClassPrxtotAve

3ClassPrxtotAve2ClassPrxtotAve

1ClassPrxtotAve0ClassPrxtotAve

(average

+

++

+

+

++

+

Average received uplink power [dBm] shows the uplink loading of a cell over thereporting period.

This measurement is based on Cell Resource Measurement [1], where the totaluplink interference (RSSI) of a cell is measured.

Averaging can be done for one cell or for a cluster of cells.

Note: When using the formula linear scale has to be used with calculations.

2.2 Average Downlink Load [dBm]

dBm)

4DenomPtxtot

3DenomPtxtot2DenomPtxtot

1DenomPtxtot0DenomPtxtot

4ClassPtxtotAve

3ClassPtxtotAve2ClassPtxtotAve

1ClassPtxtotAve0ClassPtxtotAve

(average

+

++

+

+

++

+

Average transmitted downlink power [dBm] shows the downlink loading of a cell overthe reporting period.

This measurement is based on Cell Resource Measurement [1], where the totaltransmitted power of a cell is measured.


Note: When using the formula linear scale has to be used with calculations andscaling to dBm scale has to be done.

2.3 Average RACH Throughput [kbit/s]

kbit/s)3DenomRach

ThroughputRachAve(average

Average RACH Throughput [kbit/s] over the reporting period. Includes both the userand signalling data.

This measurement is based on Cell Resource Measurement [1], where the averageRACH Throughput of a cell is measured.





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2.4 Average FACH Throughput [kbit/s]

kbit/s)0DenomThroughputFach

ThroughputFachAve(average

Average FACH Throughput [kbit/s] over the reporting period. Includes both the userand signalling data.

This measurement is based on Cell Resource Measurement [1], where the averageFACH Throughput of a cell is measured.


2.5 Average PCH Throughput [kbit/s]

)kbit/s0DenomThroughputPCH

ThroughputPCHAve(average

Average PCH Throughput [kbit/s] over the reporting period. Includes both the userand signalling data.

This KPI is based on Cell Resource Measurement [1], where the average PCH

Throughput of a cell is measured.


2.6 RRC Setup and Access Complete Ratio [%]

%Att)setupConnRRC(sum

Comp)AccConnRRC(sum*100

RRC Setup and Access Complete Ratio [%] over the reporting period. Covers RRCSetup and Access phases (From RRC Connection Request to RRC ConnectionSetup Complete).

This KPI is based on Service Level Measurement [2], where RRC related signallingevents are measured.


Note1:This is not RRC non-blocking ratiobecause access phase is also included.

Note2:This is not Call Setup Success ratio because RRC connection is needed alsofor other purposes than a call (SMS, LU, Detach, ).





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2.7 RRC Drop Ratio [%]

%)CompAccConnRRC(sum

Reloc)SRNCtodueRelActiveConnRRC

emppretodueRelActiveConnRRC

CompActiveConnRRC(sum

*100-100

+

+

RRC Drop Ratio [%] over the reporting period. Covers RRC Active Phase of a call. Inthis KPI RRC Releases due to pre-emption are considered as successful case.

This KPI is based on Service Level Measurement [2], where RRC related signallingevents are measured.


2.8 RAB Setup and Access Complete Ratio, Voice [%]

%)CallVoiceCSforAttSetupRAB(sum

)CallVoiceCSforCompAccSetupRAB(sum*100

RAB Setup and Access Complete Ratio [%] for voice calls over the reporting period.Covers RAB Setup and Access phases (From RAB Assignment Request to RadioBearer Setup Complete).

This KPI is based on Service Level Measurement [2], where RAB related signallingevents are measured.


Note1: This is not pure RAB non-blocking ratio because access phase is alsoincluded.

Note2:This is not Call Setup Success ratio because also RRC connection is neededbefore RAB.

2.9 RAB Setup and Access Complete Ratio, RT Service Other Than Voice [%]

%

)ClassStreamwithCallsPSforAttetupRAB

ClassConvwithCallsPSforAttSetupRAB

ClassStreamDataCSforAttSetupRAB

ClassConvDataCSforAttSetupRAB(sum

)ClassStreamCallDataPSforCompAccSetupRAB

ClassConvCallDataPSforCompAccSetupRAB

ClassStreamCallDataCSforConpAccSetupRAB

ClassConvCallDataCSforCompAccSetupRAB(sum

*100

S+

+

+

+

+

+

RAB Setup and Access Complete Ratio [%] for RT services other than voice over thereporting period. Covers RAB Setup and Access phases (From RAB AssignmentRequest to Radio Bearer Setup Complete).





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Note1: This is not pure RAB non-blocking ratio because access phase is alsoincluded.

Note2: This is not Call Setup Success ratio because RRC connection is neededbefore RAB.

2.10 Service Setup Success Ratio [%]

%

)ClassBackgwithCallsPSforAttSetupRAB

ClassInterawithCallsPSforAttSetupRAB

ClassStreamwithCallsPSforAttSetupRAB

ClassConvwithCallsPSforAttSetupRAB

ClassStreamDataCSforAttSetupRAB

ClassConvDataCSforAttSetupRAB

CallVoiceCSforAttSetupRAB(sum

)ClassBackgCallDataPSforCompAccSetupRAB

ClassInteraCallDataPSforCompAccSetupRAB

ClassStreamCallDataPSforCompAccSetupRAB


ClassStreamCallDataCSforConpAccSetupRAB

ClassConvCallDataCSforCompAccSetupRAB

CallVoiceCSforCompAccSetupRAB(sum

*)AttemptsCall(sum

)FailuresCall-AttemptsCall(sum*100

+

+

+

+

+

+

+

+

+

+

+

+

Service Setup Success Ratio [%] calculated as RRC Setup Complete Ratio for callsmultiplied by RAB Setup and Access Complete Ratio over the reporting period.Covers RRC and RAB Setup and Access phases (From RRC Connection RequesttoRadio Bearer Setup Complete).

This KPI is based on Service Level Measurement [2], where RRC and RAB relatedsignalling events are measured.


2.11 RAB Drop Ratio, Voice [%]

%)CallVoiceCSforCompAccSetupRAB(sum

)RelocSRNCtodueCallVoiceCSforRelActRAB

EmpPretodueCallVoiceCSforRelActRAB

CallVoiceCSforCompActRAB(sum

*100-100 +

+

RAB Drop Ratio [%] for voice calls over the reporting period. Covers the RAB Activephase of a call (From Radio Bearer Setup Complete to RAB Assignment Requestnormal call releaseor SRNC relocation or pre-emption takes place).






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2.12 RAB Drop Ratio, RT Services Other Than Voice [%]

%

)ClassStreamCallDataPSforCompAccSetupRAB


ClassStreamCallDataCSforCompAccSetupRAB

ClassConvCallDataCSforCompAccSetupRAB(sum

)RelocSRNCtodueClassStreamCallDataPSforRelActRABEmpPretodueClassStreamCallDataPSforRelActRAB

RelocSRNCtodueClassConvCallDataPSforRelActRAB

EmpPretodueClassConvCallDataPSforRelActRAB

RelocSRNCtodueClassStreamCallDataCSforRelActRAB

EmpPretodueClassStreamCallDataCSforRelActRAB

RelocSRNCtodueClassConvCallDataCSforRelActRAB

EmpPretodueClassConvCallDataCSforRelActRAB(sum

Class)StreamCallDataPSforCompActRAB

ClassConvCallDataPSforCompActRAB

ClassStreamCallDataCSforCompActRAB

ClassConvCallDataCSforCompActRAB(sum

*100-100

+

+

+

+

+

+

+

+

+

+

+

+

+

+

RAB Drop Ratio [%] for RT services other than voice over the reporting period.Covers the RAB Active phase of a call (From Radio Bearer Setup Completeto RABAssignment Requestnormal call releaseor SRNC relocation or pre-emption takes place).



2.13 RAB Drop Ratio, NRT Services [%]

%

)ClassBackgCallDataPSforCompAccSetupRAB

ClassInteraCallDataPSforCompAccSetupRAB(sum

)RelocSRNCtodueClassBackgCallDataPSforRelActRAB

EmpPretoueClassBackgCallDataPSforRelActRAB

RelocSRNCtodueClassInteraCallDataPSforRelActRAB

EmpPretodueClassInteraCallDataPSforRelActRAB(sum

Class)BackgCallDataPSforCompActRAB

ClassInteraCallDataPSforCompActRAB(sum

*100-100

+

+

+

+

+

+

RAB Drop Ratio [%] for NRT services over the reporting period. Covers the RABActive phase of a call (From Radio Bearer Setup Complete to RAB AssignmentRequest normal call releaseor SRNC relocation or pre-emption takes place).







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2.14 Soft Handover Overhead [%]

%100*)1

)NRTforSetActiveinCellsSixNRTforSetActiveinCellsFive

NRTforSetActiveinellsCFourNRTforSetActiveinCellsThree

NRTforSetActiveinCellsTwoNRTforSetActiveinCellOne

RTforSetActiveinCellsSixRTforSetActiveinCellsFive

RTforSetActiveinCellsFourRTforSetActiveinCellsThree

RTforSetActiveinCellsTwoRTforSetActiveinCellOne(sum

6*)NRTforSetActiveinCellsSixRTforSetActiveinCellsSix(sum

5*)NRTforSetActiveinCellsFiveRTforSetActiveinCellsFive(sum

4*)NRTforSetActiveinCellsFourRTforSetActiveinellsCFour(sum

3*)NRTforSetActiveinCellsThreeRTforSetActiveinCellsThree(sum

2*)NRTforSetActiveinCellsTwoRTforSetActiveinCellsTwo(sum

1*)NRTforSetActiveinCellOneRTforSetActiveinCellOne(sum

(

++

++

++

++

++

+

++

++

++

++

++

+

Soft Handover Overhead [%] over the reporting period.

This KPI is based on Soft Handover Measurement [3] where Active Set sizes aremeasured.


2.15 Hard Handover Fail Ratio [%]

%

ty)IncapabiliSHObyCausedHandoversHardSuccessful

tyIncapabiliSHObyCausedHandoverHardullUnsuccesf

tyIncapabiliSHObyCausedHandoversHardSuccessful

tyIncapabiliSHObyCausedHandoverHardullUnsuccesf(um

)tyIncapabiliSHObyCausedHandoversHardullUnsuccesf

tyIncapabiliSHObyCausedHandoversHardullUnsuccesf(sum

*100

+

+

+

+

s

Hard Handover Fail Ratio [%] for the reporting period.


2.16 UL Dedicated Channel Throughput [kbit/s]

Uplink Dedicated Channel Throughputs [kbit/s] for different service classes inServing RNC for the reporting period. See the separate chapters below.

These KPIs are based on Traffic Measurement [5].


Note 1:The defined formulas are valid for one-hour measurement periods.

Note 2: Defined Throughputs are so called raw throughputs; Handover overheadsare included.





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2.16.1 CS Voice Call

kbit/s36/)SNRCinin ULkbps12.2AMRforDuraAlloDCHRT*12.2

SNRCinin ULkbps10.2AMRforDuraAlloDCHRT*10.2






SNRCinin ULkbps4.75AMRforDuraAlloDCHRT*(4.75average

+

+

+

+

+

+

+

2.16.2 CS Data Call Conversational Class

kbit/s36/)SRNCinin ULkbps64ClassConvDataCSTransforDurAlloDCHRT*64SRNCinin ULkbps33.6ClassConvDataCSTransforDurAlloDCHRT*33.6

SRNCinin ULkbps32ClassConvDataCSTransforDurAlloDCHRT*32

SRNCinin ULkbps28.2ClassConvDataCSTransforDurAlloDCHRT*28.2(average

+

+

+

2.16.3 CS Data Call Streaming Class

kbit/s36/)SRNCinin ULkbps32ClassStreamDataCSTransforDurAlloDCHRT*57.6

SRNCinin ULkbps28.2ClassStreamDataCSTransforDurAlloDCHRT*28.2

SRNCinin ULkbps14.4ClassStreamDataCSNontransforDurAlloDCHRT*14.4(average

+

+

2.16.4 PS Data Call Conversational Class

kbit/s36/)SRNCinin ULkbps384ClassConvDataPSforDurAlloDCHRT*384

SRNCinin ULkbps320ClassConvDataPSforDurAlloDCHRT*320





SRNCinin ULkbps16ClassConvaDatPSforDurAlloDCHRT*16

SRNCinin ULkbps8ClassConvDataPSforDurAlloDCHRT*8(average

+

+

+

+

+

+

+

2.16.5 PS Data Call Streaming Class

kbit/s36/)SRNCinin ULkbps384ClassStreamDataPSforDurAlloDCHRT*384

SRNCinin ULkbps320ClassStreamDataPSforDurAlloDCHRT*320






SRNCinin ULkbps8ClassStreamDataPSforDurAlloDCHRT*8(average

+

+

+

+

+

+

+





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2.16.6 PS Data Call Intera Class

kbit/s36/)SRNCinin ULkbps384ClassInteraDataPSforDurAlloDCHNRT*384

SRNCinin ULkbps320ClassInteraDataPSforDurAlloDCHNRT*320






SRNCinin ULkbps8ClassInteraDataPSforDurAlloDCHNRT*8(average

+

+

+

+

+

+

+

2.16.7 PS Data Call Background Class

kbit/s36/)SRNCinin ULkbps384ClassBackgDataPSforDurAlloDCHNRT*384

SRNCinin ULkbps320ClassBackgDataPSforDurAlloDCHNRT*320


SRNCinin ULkbps128ClassBackgDataPSforDurAlloDCHNRT*128SRNCinin ULkbps64ClassBackgDataPSforDurAlloDCHNRT*64



SRNCinin ULkbps8ClassBackgDataPSforDurAlloDCHNRT*8(average

+

+

+

+

+

+

+

2.17 DL Dedicated Channel Throughput [kbit/s]

Downlink Dedicated Channel Throughputs [kbit/s] for different service classes.

These KPIs are based on Traffic Measurement [5].


Note1:The defined formulas are valid for one-hour measurement periods.

Note 2:Defined Throughputs are so called raw throughputs; handover overheadsare included.

2.17.1 CS Voice Call

kbit/s36/)SRNCinDLinkbps12.2AMRforDuraAlloDCHRT*12.2

SRNCinDLinkbps10.2AMRforDuraAlloDCHRT*10.2




SRNCinDLinkbps5.9AMRforDuraAlloDCHRT*5.9SRNCinDLinkbps5.15AMRforDuraAlloDCHRT*5.15

SRNCinDLinkbps4.75AMRforDuraAlloDCHRT*(4.75average

+

+

+

+

+

+

+

2.17.2 CS Data Call Conversational Class

Same as Uplink, see chapter 4.17.1.





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2.17.3 CS Data Call Streaming Class

kbit/s36/SRNC)inDLinkbps57.6ClassStreamDataCSTransforDurAlloDCHRT*57.6

SRNCinDLinkbps28.8ClassStreamDataCSTransforDurAlloDCHRT*28.8

SRNCinDLinkbps14.4ClassStreamDataCSTransforDurAlloDCHRT*(14.4sum

+

+

2.17.4 PS Data Call Conversational Class

kbit/s36/)SRNCinDLinkbps384ClassConvDataPSforDurAlloDCHRT*384

SRNCinDLinkbps320ClassConvDataPSforDurAlloDCHRT*320






SRNCinDLinkbps8ClassConvDataPSforDurAlloDCHRT*(8average

+

+

+

+

+

+

+

2.17.5 PS Data Call Streaming Class

kbit/s36/)SRNCinDLinkbps384ClassStreamDataPSforDurAlloDCHRT*384

SRNCinDLinkbps320ClassStreamDataPSforDurAlloDCHRT*320






SRNCinDLinkbps8ClassStreamDataPSforDurAlloDCHRT*(8average

+

+

+

+

+

+

+

2.17.6 PS Data Call Intera Class

kbit/s36/)SRNCinDLinkbps384ClassInteraDataPSforDurAlloDCHNRT*384

SRNCinDLinkbps320ClassInteraDataPSforDurAlloDCHNRT*320






SRNCinDLinkbps8ClassInteraDataPSforDurAlloDCHNRT*8(average

+

+

+

+

+

+

+

2.17.7 PS Data Call Background Class

kbit/s36/)SRNCinDLinkbps384ClassBackgDataPSforDurAlloDCHNRT*384

SRNCinDLinkbps320ClassBackgDataPSforDurAlloDCHNRT*320






SRNCinDLinkbps8ClassBackgDataPSforDurAlloDCHNRT*(8average

+

+

+

+

+

+

+





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3. REFERENCES

[1] DN 000000, Cell Resource Measurement

[2] DN 000000, Service Level Measurement

[3] DN 000000, Soft Handover Measurement

[4] DN 000000, Intra - System Hard Handover Measurement

[5] DN 000000, Traffic Measurement

190664395 accepted 3g ran key perfomance indicators as 21032001

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