BSS KPI and PI Recommendations (Appendix to Guideline)

IntroductionPurposeThe purpose of this guideline is to specify a set of recommended BSS radio network Key Performance Indicators (KPI) and a set of important Performance Indicators (PI) associated with each individual KPI. To limit the size of this document it does not contain a description of all included counters and formulas. For detailed information about the Key Performance Indicators please see Ref. [1] and for detailed information about the Performance Indicators please see Ref. [2].Scope of the Radio Network KPIsThe following apply to the scope of the treated radio network KPIs and PIs:* The selected set of KPIs and PIs covers both the circuit and packet switched domains in the Ericsson BSS.* The KPIs reflect the end-user perception of the performance of BSS rather than the system view, while the PIs are system view oriented and intended to be used for interpretation of observed changes to the KPIs.* The KPIs and PIs are based on what can be measured in BSS. Hence, e2e measurements including nodes outside BSS are not within the scope of the measurements.* The KPI and PI formulas are based on counters to be collected from STS.* The formulas defined in this version of the document are valid for the following BSS releases R10 - 08B. If a particular formula differs between releases, alternative formulas are given.Structure of This DocumentIn the first sheet Level Cell & Cell-relation the KPI and PI formulas are specified on cell or cell-relation level depending on the scope of each individual counter used in the formulas. Object types that must be collected for each formula is listed for each single formula.In the second sheet Level Cellset, BSC & NW formulas are defined for aggregated levels: Cellset, BSC or Network, respectively. Aggregation shall be performed over every cell in a Cellset, BSC or Network as applicable.Object types specified in the document are the object types required for a particular formula. Ericsson AB 2007-2008The contents of this document are subject to revision without notice due to continued progress in methodology, design and manufacturing. Ericsson shall have no liability for any error or damages of any kind resulting from the use of this document.

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ReferencesReferences[1] BSS RADIO NETWORK KEY PERFORMANCE INDICATOR (KPI) GUIDELINE, 212/100 56-HSC 103 12[2] User Description, Radio Network Statistics 216/1553-HSC 103 12/13

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Level Cell & CellrelationKey Performance IndicatorsKPI Formula (Cell Level)Associated Performance IndicatorsPI Formula (Cell Level)Object TypeCommentCS KPIsAccessibilityRandom access success rate [%]100*(1-RAACCFA/(CNROCNT+PDRAC+RAACCFA))NoneNoneRANDOMACCCELLGPRSSDCCH Time Congestion [%]100*(CTCONGS+CTCONSUB)/(PERLEN*60)NoneNoneCLSDCCHCLSDCCHOSDCCH Drop rate [%]100*((CNDROP-CNRELCONG)/CMSESTAB)See list belowSee list belowCLSDCCHSDCCH Erlang Minutes per DropPERLEN * (CTRALACC / CNSCAN) / CNDROPCLSDCCHIf (CNDROP or CNSCAN) = 0 the answer shall be "#DIV/Zero". This could indicate OT not subscribed to or NO traffic or very low traffic as it is very rare that there are NO dropas at all. CNSCAN shall never be zero!SDCCH Drop Reason, Low SS (%)100 * (CDISSS + CDISSSSUB) / CNDROPCLSDCCHCELLCCHDRSDCCH Drop Reason, Bad Quality (%)100 * (CDISQA + CDISQASUB) / CNDROPCLSDCCHCELLCCHDRSDCCH Drop Reason, Excessive TA (%)100 * CDISTA / CNDROPCLSDCCHCELLCCHDRSDCCH Drop Reason, Other (%)100 * (CNDROP - (CDISSS + CDISSSSUB+CDISQA+CDISQASUB+CDISTA)) / CNDROPCLSDCCHCELLCCHDRTCH Assignment success rate [%]100*(TCASSALL+SUMEOABSUCC+SUMEOAWSUCC+SUMOABSUCC+SUMOAWSUCC-SUMEIABSUCC-SUMEIAWSUCC-SUMIABSUCC-SUMIAWSUCC)/(TASSALL+SUMEOABSUCC+SUMEOAWSUCC+SUMOABSUCC-SUMOAWSUCC-SUMEUABSUCC-SUMEIAWSUCC-SUMIABSUCC-SUMIAWSUCC)See list belowSee list belowCLTCHNCELLRELNICELASSNECELLRELNECELASSTCH Mean Holding Time (Sec.)PERLEN * 60 *((TFTRALACC/TFNSCAN)+(THTRALACC / THNSCAN)) / (TFMSESTB + THMSESTB)CELTCHFCELTCHHThis has to be a case-by-case situation as follows:

i) If (TFMSESTB + THMSESTB) = 0 the answer shall be "#DIV/Zero" (indicates no traffic). ii) If ANY of TFNSCAN or THNSCAN = 0 this terms shall be removed from the formula and the valid result shall be shown. These two counters are only indicating # measurements and they should not be 0 unless HR (THNSCAN) is not used or OT not subscribed to.Subscriber Perceived TCH Congestion [%]100*(CNRELCONG+TFNRELCONG+TFNRELCONGSUB+THNRELCONG+THNRELCONGSUB)/TASSALLCLSDCCHCELTCHFCELTCHHCLTCHRetainabilityTCH Drop rate [%]100*(TFNDROP+TFNDROPSUB+THNDROP+THNDROPSUB)/((THCASSALL+THCASSALLSUB+TFCASSALLSUB+TFCASSALL+(SUMIHOSUCC-SUMIABSUCC-SUMIAWSUCC)-(SUMOHOSUCC-SUMOABSUCC-SUMOAWSUCC)+(SUMEIHOSUCC-SUMEIABSUCC-SUMEIAWSUCC)-(SUMEOHOSUCC-SUMEOABSUCC-SUMEOAWSUCC))See list belowSee list belowCELTCHFCELTCHHNCELLRELNICELASSNECELLRELNECELASSDrop Reason, Low SS DL (%)100 * (TFDISSDL +THDISSDL + TFDISSDLSUB +THDISSDLSUB)/(TFNDROP + THNDROP + TFNDROPSUB+ THNDROPSUB)CLTCHDRFCLTCHDRHCELTCHFCELTCHHDrop Reason, Low SS UL (%)100 *(TFDISSUL + THDISSUL + TFDISSULSUB +THDISSULSUB)/(TFNDROP +THNDROP + TFNDROPSUB + THNDROPSUB)CLTCHDRFCLTCHDRHCELTCHFCELTCHHDrop Reason, Low SS UL/DL [%]100 * (TFDISSBL + THDISSBL + TFDISSBLSUB +THDISSBLSUB)/(TFNDROP+THNDROP+TFNDROPSUB + THNDROPSUB)CLTCHDRFCLTCHDRHCELTCHFCELTCHHDrop Reason, Bad Quality DL (%)100 * (TFDISQADL +THDISQADL + TFDISQADLSUB +THDISQADLSUB)/(TFNDROP + THNDROP + TFNDROPSUB +THNDROPSUB)CLTCHDRFCLTCHDRHCELTCHFCELTCHHDrop Reason, Bad Quality UL (%)100 * (TFDISQAUL+THDISQAUL +TFDISQAULSUB +THDISQAULSUB)/(TFNDROP + THNDROP + TFNDROPSUB + THNDROPSUB)CLTCHDRFCLTCHDRHCELTCHFCELTCHHDrop Reason, Bad Quality UL/DL (%)100*(TFDISQABL + THDISQABL + TFDISQABLSUB +THDISQABLSUB)/(TFNDROP+THNDROP +TFNDROPSUB+ THNDROPSUB)CLTCHDRFCLTCHDRHCELTCHFCELTCHHDrop Reason, Suddenly Lost Connections (%)100 * (TFSUDLOS + THSUDLOS + TFSUDLOSSUB +THSUDLOSSUB) / (TFNDROP + THNDROP +TFNDROPSUB+ THNDROPSUB)CLTCHDRFCLTCHDRHCELTCHFCELTCHHDrop Reason, Excessive TA (%)100 * (TFDISTA + THDISTA) / (TFNDROP +THNDROP +TFNDROPSUB + THNDROPSUB)CLTCHDRFCLTCHDRHCELTCHFCELTCHHDrop Reason, FER DL (%)100*(TFDISFERDL+ TFDISFERDLSUB+THDISFERDL+THDISFERDLSUB)/(TFNDROP +THNDROP + TFNDROPSUB + THNDROPSUB)CLTCHDRFCLTCHDRHCELTCHFCELTCHHDrop Reason, FER UL (%)100*(TFDISFERUL+TFDISFERULSUB+THDISFERUL+THDISFERULSUB)/(TFNDROP+THNDROP+TFNDROPSUB+THNDROPSUB)CLTCHDRFCLTCHDRHCELTCHFCELTCHHDrop Reason, FER UL/DL (%)100*(TFDISFERBL+TFDISFERBLSUB+THDISFERBL+THDISFERBLSUB)/(TFNDROP + THNDROP + TFNDROPSUB+THNDROPSUB)CLTCHDRFCLTCHDRHCELTCHFCELTCHHDrop Reason, Other (%)100*(TFNDROP+THNDROP+TFNDROPSUB+THNDROPSUB-TFDISTA-THDISTA-TFDISSUL-TFDISSDL-TFDISSBL-TFDISSULSUB-TFDISSDLSUB-TFDISSBLSUB-THDISSUL-THDISSDL-THDISSBL-THDISSULSUB-THDISSDLSUB-THDISSBLSUB-TFDISFERUL-TFDISFERDL-TFDISFERBL-TFDISFERULSUB-TFDISFERDLSUB-TFDISFERBLSUB-THDISFERUL-THDISFERDL-THDISFERBL-THDISFERULSUB-THDISFERDLSUB-THDISFERBLSUB-TFDISQAUL-TFDISQADL-TFDISQABL-TFDISQAULSUB-TFDISQADLSUB-TFDISQABLSUB-THDISQAUL-THDISQADL-THDISQABL-THDISQAULSUB-THDISQADLSUB-THDISQABLSUB-TFSUDLOS-TFSUDLOSSUB-THSUDLOS-THSUDLOSSUB)/(TFNDROP+THNDROP+TFNDROPSUB+THNDROPSUB)CLTCHDRFCLTCHDRHCELTCHFCELTCHHCall minutes per drop [min]PERLEN * ((TFTRALACC/TFNSCAN)+(THTRALACC/THNSCAN)) / (TFNDROP+TFNDROPSUB+THNDROP+THNDROPSUB)NoneNoneCELTCHFCELTCHHThis is a case-by-case situation as follows:

i) If (TFNDROP+TFNDROPSUB+THNDROP+THNDROPSUB) = 0 the answer shall be "#DIV/Zero". Could e.g. indicate OT not subscribed to or NO traffic or very low traffic as it is very rare that there are NO dropas at all.ii) If ANY of TFNSCAN or THNSCAN = 0 this terms shall be removed from the formula and the valid result shall be shown. These two counters are only indicating # measurements and they should not be 0 unless HR (THNSCAN) is not used or OT not subscribed to.Handover success rate [%]Per cell relation:100*HOVERSUC/HOVERCNTSummation counters (in NWS) on cell level:100*(SUMOHOSUCC+SUMEOHOSUCC)/(SUMOHOATT+SUMEOHOATT)NoneNoneNCELLRELNICELASSNECELLRELNECELASSHandover lost rate [%]Per cell relation:100*(HOVERCNT-HOVERSUC-HORTTOCH)/HOVERCNTSummation counters (in NWS) on cell level:100*(SUMOHOLOST+SUMEHOLOST)/(SUMOHOATT+SUMEOHOATT)NoneNoneNCELLRELNICELASSNECELLRELNECELASSIntegritySpeech quality good (UL) [%] (R10-07B)100*(TSQIGOOD+TSQIGOODSUB+TSQIGOODAF+TSQIGOODSUBAF+TSQIGOODAH+TSQIGOODSUBAH)/(TSQIGOOD+TSQIGOODSUB+TSQIGOODAF+TSQIGOODSUBAF+TSQIGOODAH+TSQIGOODSUBAH+TSQIACCPT+TSQIACCPTSUB+TSQIACCPTAF+TSQIACCPTSUBAF+TSQIACCPTAH+TSQIACCPTSUBAH+TSQIBAD+TSQIBADSUB+TSQIBADAF+TSQIBADSUBAF+TSQIBADAH+TSQIBADSUBAH)See list belowSee list belowCELLSQISpeech quality acceptable (UL) [%](R10-07B)100*(TSQIACCPT+TSQIACCPTSUB+TSQIACCPTAF+TSQIACCPTSUBAF+TSQIACCPTAH+TSQIACCPTSUBAH)/(TSQIGOOD+TSQIGOODSUB+TSQIGOODAF+TSQIGOODSUBAF+TSQIGOODAH+TSQIGOODSUBAH+TSQIACCPT+TSQIACCPTSUB+TSQIACCPTAF+TSQIACCPTSUBAF+TSQIACCPTAH+TSQIACCPTSUBAH+TSQIBAD+TSQIBADSUB+TSQIBADAF+TSQIBADSUBAF+TSQIBADAH+TSQIBADSUBAH)CELLSQISpeech quality bad (UL) [%](R10-07B)100*(TSQIBAD+TSQIBADSUB+TSQIBADAF+TSQIBADSUBAF+TSQIBADAH+TSQIBADSUBAH)/(TSQIGOOD+TSQIGOODSUB+TSQIGOODAF+TSQIGOODSUBAF+TSQIGOODAH+TSQIGOODSUBAH+TSQIACCPT+TSQIACCPTSUB+TSQIACCPTAF+TSQIACCPTSUBAF+TSQIACCPTAH+TSQIACCPTSUBAH+TSQIBAD+TSQIBADSUB+TSQIBADAF+TSQIBADSUBAF+TSQIBADAH+TSQIBADSUBAH)CELLSQISpeech quality good (UL) [%] (08A and onwards)100*(TSQIGOOD+TSQIGOODSUB+TSQIGOODAF+TSQIGOODSUBAF+TSQIGOODAH+TSQIGOODSUBAH+TSQIGOODAW+TSQIGOODSUBAW)/(TSQIGOOD+TSQIGOODSUB+TSQIGOODAF+TSQIGOODSUBAF+TSQIGOODAH+TSQIGOODSUBAH+TSQIACCPT+TSQIACCPTSUB+TSQIACCPTAF+TSQIACCPTSUBAF+TSQIACCPTAH+TSQIACCPTSUBAH+TSQIBAD+TSQIBADSUB+TSQIBADAF+TSQIBADSUBAF+TSQIBADAH+TSQIBADSUBAH+TSQIGOODAW+TSQIGOODSUBAW+ TSQIACCPTAW+TSQIACCPTSUBAW+TSQIBADAW+TSQIBADSUBAW)See list belowSee list belowCELLSQISpeech quality acceptable (UL) [%](08A and onwards)100*(TSQIACCPT+TSQIACCPTSUB+TSQIACCPTAF+TSQIACCPTSUBAF+TSQIACCPTAH+TSQIACCPTSUBAH+TSQIACCPTAW+TSQIACCPTSUBAW)/(TSQIGOOD+TSQIGOODSUB+TSQIGOODAF+TSQIGOODSUBAF+TSQIGOODAH+TSQIGOODSUBAH+TSQIACCPT+TSQIACCPTSUB+TSQIACCPTAF+TSQIACCPTSUBAF+TSQIACCPTAH+TSQIACCPTSUBAH+TSQIBAD+TSQIBADSUB+TSQIBADAF+TSQIBADSUBAF+TSQIBADAH+TSQIBADSUBAH+TSQIGOODAW+TSQIGOODSUBAW+ TSQIACCPTAW+TSQIACCPTSUBAW+TSQIBADAW+TSQIBADSUBAW)CELLSQISpeech quality bad (UL) [%](08A and onwards)100*(TSQIBAD+TSQIBADSUB+TSQIBADAF+TSQIBADSUBAF+TSQIBADAH+TSQIBADSUBAH+TSQIBADAW+TSQIBADSUBAW)/(TSQIGOOD+TSQIGOODSUB+TSQIGOODAF+TSQIGOODSUBAF+TSQIGOODAH+TSQIGOODSUBAH+TSQIACCPT+TSQIACCPTSUB+TSQIACCPTAF+TSQIACCPTSUBAF+TSQIACCPTAH+TSQIACCPTSUBAH+TSQIBAD+TSQIBADSUB+TSQIBADAF+TSQIBADSUBAF+TSQIBADAH+TSQIBADSUBAH+TSQIGOODAW+TSQIGOODSUBAW+ TSQIACCPTAW+TSQIACCPTSUBAW+TSQIBADAW+TSQIBADSUBAW)CELLSQISpeech quality good (DL) [%](R12-07B)100*(TSQIGOODDL+TSQIGOODSUBDL+TSQIGOODAFDL+TSQIGOODSUBAFDL+TSQIGOODAHDL+TSQIGOODSUBAHDL)/(TSQIGOODDL+TSQIGOODSUBDL+TSQIGOODAFDL+TSQIGOODSUBAFDL+TSQIGOODAHDL+TSQIGOODSUBAHDL+TSQIACCPTDL+TSQIACCPTSUBDL+TSQIACCPTAFDL+TSQIACCPTSUBAFDL+TSQIACCPTAHDL+TSQIACCPTSUBAHDL+TSQIBADDL+TSQIBADSUBDL+TSQIBADAFDL+TSQIBADSUBAFDL+TSQIBADAHDL+TSQIBADSUBAHDL)See list belowSee list belowCELLSQIDLSpeech quality acceptable (DL) [%](R10-07B)100*(TSQIACCPTDL+TSQIACCPTSUBDL+TSQIACCPTAFDL+TSQIACCPTSUBAFDL+TSQIACCPTAHDL+TSQIACCPTSUBAHDL)/(TSQIGOODDL+TSQIGOODSUBDL+TSQIGOODAFDL+TSQIGOODSUBAFDL+TSQIGOODAHDL+TSQIGOODSUBAHDL+TSQIACCPTDL+TSQIACCPTSUBDL+TSQIACCPTAFDL+TSQIACCPTSUBAFDL+TSQIACCPTAHDL+TSQIACCPTSUBAHDL+TSQIBADDL+TSQIBADSUBDL+TSQIBADAFDL+TSQIBADSUBAFDL+TSQIBADAHDL+TSQIBADSUBAHDL)CELLSQIDLSpeech quality bad (DL) [%](R10-07B)100*(TSQIBADDL+TSQIBADSUBDL+TSQIBADAFDL+TSQIBADSUBAFDL+TSQIBADAHDL+TSQIBADSUBAHDL)/(TSQIGOODDL+TSQIGOODSUBDL+TSQIGOODAFDL+TSQIGOODSUBAFDL+TSQIGOODAHDL+TSQIGOODSUBAHDL+TSQIACCPTDL+TSQIACCPTSUBDL+TSQIACCPTAFDL+TSQIACCPTSUBAFDL+TSQIACCPTAHDL+TSQIACCPTSUBAHDL+TSQIBADDL+TSQIBADSUBDL+TSQIBADAFDL+TSQIBADSUBAFDL+TSQIBADAHDL+TSQIBADSUBAHDL)CELLSQIDLSpeech quality good (DL) [%](08A and onwards)100*(TSQIGOODDL+TSQIGOODSUBDL+TSQIGOODAFDL+TSQIGOODSUBAFDL+TSQIGOODAHDL+TSQIGOODSUBAHDL+TSQIGOODAWDL+TSQIGOODSUBAWDL)/(TSQIGOODDL+TSQIGOODSUBDL+TSQIGOODAFDL+TSQIGOODSUBAFDL+TSQIGOODAHDL+TSQIGOODSUBAHDL+TSQIACCPTDL+TSQIACCPTSUBDL+TSQIACCPTAFDL+TSQIACCPTSUBAFDL+TSQIACCPTAHDL+TSQIACCPTSUBAHDL+TSQIBADDL+TSQIBADSUBDL+TSQIBADAFDL+TSQIBADSUBAFDL+TSQIBADAHDL+TSQIBADSUBAHDL+TSQIGOODAWDL+TSQIGOODSUBAWDL+TSQIACCPTAWDL+TSQIACCPTSUBAWDL+TSQIBADAWDL+TSQIBADSUBAWDL)See list belowSee list belowCELLSQIDLSpeech quality acceptable (DL) [%](08A and onwards)100*(TSQIACCPTDL+TSQIACCPTSUBDL+TSQIACCPTAFDL+TSQIACCPTSUBAFDL+TSQIACCPTAHDL+TSQIACCPTSUBAHDL+TSQIACCPTAWDL+TSQIACCPTSUBAWDL)/(TSQIGOODDL+TSQIGOODSUBDL+TSQIGOODAFDL+TSQIGOODSUBAFDL+TSQIGOODAHDL+TSQIGOODSUBAHDL+TSQIACCPTDL+TSQIACCPTSUBDL+TSQIACCPTAFDL+TSQIACCPTSUBAFDL+TSQIACCPTAHDL+TSQIACCPTSUBAHDL+TSQIBADDL+TSQIBADSUBDL+TSQIBADAFDL+TSQIBADSUBAFDL+TSQIBADAHDL+TSQIBADSUBAHDL+TSQIGOODAWDL+TSQIGOODSUBAWDL+TSQIACCPTAWDL+TSQIACCPTSUBAWDL+TSQIBADAWDL+TSQIBADSUBAWDL)CELLSQIDLSpeech quality bad (DL) [%](08A and onwards)100*(TSQIBADDL+TSQIBADSUBDL+TSQIBADAFDL+TSQIBADSUBAFDL+TSQIBADAHDL+TSQIBADSUBAHDL+TSQIBADAWDL+TSQIBADSUBAWDL)/(TSQIGOODDL+TSQIGOODSUBDL+TSQIGOODAFDL+TSQIGOODSUBAFDL+TSQIGOODAHDL+TSQIGOODSUBAHDL+TSQIACCPTDL+TSQIACCPTSUBDL+TSQIACCPTAFDL+TSQIACCPTSUBAFDL+TSQIACCPTAHDL+TSQIACCPTSUBAHDL+TSQIBADDL+TSQIBADSUBDL+TSQIBADAFDL+TSQIBADSUBAFDL+TSQIBADAHDL+TSQIBADSUBAHDL+TSQIGOODAWDL+TSQIGOODSUBAWDL+TSQIACCPTAWDL+TSQIACCPTSUBAWDL+TSQIBADAWDL+TSQIBADSUBAWDL)CELLSQIDLInter system operabilityGSM to UTRAN Handover success rate [%]Per cell relation:100*HOVERSUCUTRAN/HOVERCNTUTRANSummation counters (in NWS) on cell level:100*(SUMHOVERSUCUTRAN)/SUMHOVERCNTUTRANNoneNoneNUCELLRELGSM to UTRAN Handover lost rate [%]Per cell relation:100*(HOVERCNTUTRAN-HOVERSUCUTRAN+HORTTOCHUTRAN)/HOVERCNTUTRANSummation counters (in NWS) on cell level:100*(SUMHOLOSTUTRAN)/SUMHOVERCNTUTRANNoneNoneNUCELLRELTraffic levelTCH Traffic [Erlang](TFTRALACC/TFNSCAN)+(THTRALACC/THNSCAN)NoneNoneCELTCHFCELTCHHIf any of TFNSCAN or THNSCAN = 0 this terms shall be removed from the formula and the valid result shall be shown. These two counters are only indicating # measurements and they should not be 0 unless e.g. HR is not used or the OT is not subscribed to.SDCCH Traffic [Erlang]CTRALACC/CNSCANNoneNoneCLSDCCHIf CNSCAN = 0 the answer shall be "#DIV/Zero". This could indicate OT not subscribed to as CNSCAN shall never be zero!General GPRS KPIsIP transfer interrupts, session minutes per interruptIP transfer interrupts DL, session minutes per interrupt [TBF minutes](TBFDLGPRS+TBFDLEGPRS) / (6*(LDISTFI + LDISRR + LDISOTH + FLUDISC))See list belowSee list belowCELLGPRS2TRAFDLGPRSIP transfer interrupts DL due to lack of resources, %100*(LDISTFI)/(LDISTFI + LDISRR + LDISOTH + FLUDISC)CELLGPRS2TRAFDLGPRSIP transfer interrupts DL due to lost radio contact, %100*(LDISRR)/(LDISTFI + LDISRR + LDISOTH + FLUDISC)CELLGPRS2TRAFDLGPRSIP transfer interrupts DL due to Mobility, %100*(FLUDISC)/(LDISTFI + LDISRR + LDISOTH + FLUDISC)CELLGPRS2TRAFDLGPRSIP transfer interrupts DL due to other reason, %100*(LDISOTH)/(LDISTFI + LDISRR + LDISOTH + FLUDISC)CELLGPRS2TRAFDLGPRSIP Transfer interrupts UL, session minutes per interrupt [TBF minutes]

N.B! Counter 'CRSULREL' is available from BSS 06B and onwards. In earlier releases the 'CRSULREL' counter value is included in 'IAULREL'. Counter 'PREJABISCONG' is available from BSS 08A and onwards. In earlier releases the 'PREJABISCONG' counter value is included in 'PREJTFI'.(TBFULGPRS+TBFULEGPRS) / (6*(IAULREL + CRSULREL + PREJTFI + PREJOTH+OTHULREL+PREEMPTULREL+PREJABISCONG))CELLGPRS2TRAFULGPRSCELLGPRS3IP Transfer interrupts UL due to lost radio contact, %100*IAULREL/(IAULREL + CRSULREL + PREJTFI + PREJOTH+OTHULREL+PREEMPTULREL+PREJABISCONG)CELLGPRS2TRAFULGPRSIP Transfer interrupts UL due to access reject lack of resources, %100*PREJTFI/(IAULREL + CRSULREL + PREJTFI + PREJOTH+OTHULREL+PREEMPTULREL+PREJABISCONG)CELLGPRS2TRAFULGPRSIP Transfer interrupts UL due to access reject other reason, %100*PREJOTH/(IAULREL + CRSULREL + PREJTFI + PREJOTH+OTHULREL+PREEMPTULREL+PREJABISCONG)CELLGPRS2TRAFULGPRSIP Transfer interrupts UL due to abnormal TBF release other reason, %100*OTHULREL/(IAULREL + CRSULREL + PREJTFI + PREJOTH+OTHULREL+PREEMPTULREL+PREJABISCONG)CELLGPRS2TRAFULGPRSIP Transfer interrupts UL due to abnormal TBF release due to preemption, %100*PREEMPTULREL/(IAULREL + CRSULREL + PREJTFI + PREJOTH+OTHULREL+PREEMPTULREL+PREJABISCONG)CELLGPRS2TRAFULGPRSIP Transfer interrupts UL due to Cell reselections, %

N.B! Formula only applicable for BSS 06B and onwards. (In earlier releases the 'CRSULREL' counter value is included in 'IAULREL').100*CRSULREL/(IAULREL + CRSULREL + PREJTFI + PREJOTH+OTHULREL+PREEMPTULREL+PREJABISCONG)CELLGPRS2TRAFULGPRSIP Transfer interrupts UL due to access rejects caused by packet Abis overload, %

N.B! Counter 'PREJABISCONG' is available from BSS 08A and onwards. In earlier releases the 'PREJABISCONG' counter value is included in 'PREJTFI'.100*PREJABISCONG/(IAULREL + CRSULREL + PREJTFI + PREJOTH+OTHULREL+PREEMPTULREL+PREJABISCONG)CELLGPRS3TRAFULGPRSGPRS AvailabilityGPRS Availability, [percentage of time] (R12 and onwards)100*(1-(GPRSCELLAVA*5)/PERLEN)NoneNoneCELLGPRS3Best effort service KPIs (traffic class background and interactive)IP Latency GPRS, [ms](ACCGNOEXTIPLAT+ACCGEXTIPLAT)/(GNOEXTIPLAT+GEXTIPLAT)See list belowSee list belowCELLGPRS3Average IP Latency: GPRS Extended UL Capable MS(ms)ACCGEXTIPLAT/GEXTIPLATCELLGPRS3Average IP Latency: GPRS No Extended UL Capable MS(ms)ACCGNOEXTIPLAT/GNOEXTIPLATCELLGPRS3IP Latency EGPRS [ms](ACCEGNOEXTIPLAT+ACCEGEXTIPLAT+ACCEGRLIPLAT)/(EGNOEXTIPLAT+EGEXTIPLAT+EGRLIPLAT)See list belowSee list belowCELLGPRS3Average IP Latency: EGPRS Extended UL Capable MS(ms)ACCEGEXTIPLAT/EGEXTIPLATCELLGPRS3Average IP Latency: EGPRS No Extended UL Capable MS(ms)ACCEGNOEXTIPLAT/EGNOEXTIPLATCELLGPRS3Average IP Latency: EGPRS Reduced Latency Capable MS(ms)ACCEGRLIPLAT/EGRLIPLATCELLGPRS3IP Throughput GPRSIP Throughput GPRS Downlink (DL), kbit/s(DLBGGTHR+DLTHP1GTHR+DLTHP2GTHR+DLTHP3GTHR) / (DLBGGDATA+DLTHP1GDATA+DLTHP2GDATA+DLTHP3GDATA)See list belowSee list belowCELLQOSGSimultaneous TBFs per B- and G-PDCH on DL(DLTBFPBPDCH + DLTBFPGPDCH) / (DLBPDCH + DLGPDCH)TRAFDLGPRSAverage number simultaneous of DL GPRS TBFs in the CellTBFDLGPRS/TRAFFDLGPRSSCANTRAFDLGPRSMultislot Utilization GPRS, DL %(MUTILBASIC + MUTILGPRS) / (TRAFF2BTBFSCAN + TRAFF2GTBFSCAN)TRAFGPRS2Radio Link Bit Rate (DL) per PDCH CS14 transfers, kbit/s

N.B! N.B! This formula is applicable for BSS R11 and all subsequent releases.(INT8BRGPRSTBF + INT10BRGPRSTBF + INT12BRGPRSTBF+ INT14BRGPRSTBF + INT16BRGPRSTBF + INT18BRGPRSTBF) /(0,020*CS14DLSCHED)RLINKBITRCELLGPRS2Radio Link Bit Rate (DL) per PDCH CS14 transfers, kbit/s

N.B! This formula is an alternative to the above formula and is applicable for BSS 06B and all subsequent releases.CS14DLACK/(20*CS14DLSCHED)CELLGPRS2Average maximum number of TS reservable by MSs for DL GPRS TBFsMAXGTSDL/(TRAFF2BTBFSCAN + TRAFF2GTBFSCAN)TRAFGPRS2IP Throughput GPRS Uplink (UL), kbit/s(ULBGGTHR+ULTHP1GTHR+ULTHP2GTHR+ULTHP3GTHR) / (ULBGGDATA+ULTHP1GDATA+ULTHP2GDATA+ULTHP3GDATA)See list belowSee list belowCELLQOSGSimultaneous TBFs per B- and G-PDCH on UL(ULTBFPBPDCH + ULTBFPGPDCH) / (ULBPDCH + ULGPDCH)TRAFULGPRSAverage number simultaneous of UL GPRS TBFs in the CellTBFULGPRS/TRAFFULGPRSSCANTRAFULGPRSMultislot Utilization GPRS, UL %(MUTILBASICUL + MUTILGPRSUL) / (BULTBFSCAN+GULTBFSCAN)TRAFGPRS3Radio Link Bit Rate (UL) per PDCH GPRS transfers, kbit/sCS12ULACK / (CS12ULSCHED * 20)CELLGPRSAverage maximum number of TS reservable by MSs for UL GPRS TBFsMAXGTSUL/ (BULTBFSCAN+GULTBFSCAN)TRAFGPRS3IP Throughput EGPRSIP Throughput EGPRS Downlink (DL), kbit/s(DLBGEGTHR+DLTHP1EGTHR+DLTHP2EGTHR+DLTHP3EGTHR) / (DLBGEGDATA+DLTHP1EGDATA+DLTHP2EGDATA+DLTHP3EGDATA)See list belowSee list belowCELLQOSEGSimultaneous TBFs per E-PDCHs on DLDLTBFPEPDCH / DLEPDCHTRAFDLGPRSAverage number simultaneous of DL EGPRS TBFs in the CellTBFDLEGPRS/TRAFFDLGPRSSCANTRAFDLGPRSMultislot Utilization EGPRS, DL %MUTILEGPRS /TRAFF2ETBFSCANTRAFGPRS2Radio Link Bit Rate (DL) per PDCH EGPRS transfers, kbit/s

N.B! N.B! This formula is applicable for BSS R11 and all subsequent releases.(INT10BREGPRSTBF + INT15BREGPRSTBF + INT20BREGPRSTBF + INT25BREGPRSTBF + INT30BREGPRSTBF + INT35BREGPRSTBF + INT40BREGPRSTBF + INT45BREGPRSTBF + INT50BREGPRSTBF + INT55BREGPRSTBF) / (0,020*MC19DLSCHED)RLINKBITRCELLGPRS2Radio Link Bit Rate (DL) per PDCH EGPRS transfers, kbit/s

N.B! This formula is an alternative to the above formula and is applicable for BSS 06B and all subsequent releases.MC19DLACK/(20*MC19DLSCHED)CELLGPRS2Average maximum number of TS reservable by MSs for DL EGPRS TBFsMAXEGTSDL/TRAFF2ETBFSCANTRAFGPRS2IP Throughput EGPRS Uplink (UL), kbit/s(ULBGEGTHR+ULTHP1EGTHR+ULTHP2EGTHR+ULTHP3EGTHR) / (ULBGEGDATA+ULTHP1EGDATA+ULTHP2EGDATA+ULTHP3EGDATA)See list belowSee list belowCELLQOSEGSimultaneous TBFs per E-PDCH on ULULTBFPEPDCH/ ULEPDCHTRAFULGPRSAverage number simultaneous of UL EGPRS TBFs in the CellTBFULEGPRS/TRAFFULGPRSSCANTRAFULGPRSMultislot Utilization EGPRS, UL %MUTILEGPRSUL / EULTBFSCANTRAFGPRS3Radio Link Bit Rate (UL) per PDCH EGPRS transfers, kbit/sMC19ULACK / (MC19ULSCHED * 20)CELLGPRSAverage maximum number of TS reservable by MSs for UL EGPRS TBFsMAXEGTSUL/EULTBFSCANTRAFGPRS3IP User data volumeIP User data volume uplink MB/h(GMM/SM signaling excluded)60*(VOLULSTRACC+ULINTBGVOL+LLCVOLULEIT+DTMULSTRDATA)/(8*1000*PERLEN)See list belowSee list belowCELLGPRS3CLDTMQOSCELLQOSSCELLEIT2Streaming User data volume uplink MB/h60*VOLULSTRACC/(8*1000*PERLEN)CELLQOSSInteractive and Background User data volume uplink MB/h60*ULINTBGVOL/(8*1000*PERLEN)CELLGPRS3DTM User data volume uplink MB/h60*DTMULSTRDATA/(8*1000*PERLEN)CLDTMQOSEIT User data volume uplink MB/h60*LLCVOLULEIT/(8*1000*PERLEN)CELLEIT2GMM/SM Signalling data volume uplink MB/h60*ULGMMVOL/(8*1000*PERLEN)CELLGPRS3IP User data volume downlink MB/h(GMM/SM signaling excluded)60*(DLSTRVOL+DLINTBGVOL)/(8*1000*PERLEN)See list belowSee list belowCELLGPRS3Streaming User data volume downlink MB/h60*DLSTRVOL/(8*1000*PERLEN)CELLGPRS3Interactive and Background User data volume downlink MB/h60*DLINTBGVOL/(8*1000*PERLEN)CELLGPRS3GMM/SM Signalling data volume Downlink MB/h60*DLGMMVOL/(8*1000*PERLEN)CELLGPRS3

Level Cellset, BSC & NW Key Performance IndicatorsKPI Formula (BSC Level)Associated Performance IndicatorsPI Formula (BSC Level)Object TypeCommentCS KPIsAccessibilityRandom access success rate [%]100*(1-(SRAACCFA / S(CNROCNT+PDRAC+RAACCFA)))NoneNoneRANDOMACCCELLGPRSSDCCH Time Congestion [%]100*(S(CTCONGS+CTCONSUB) / 60*SPERLEN))NoneNoneCLSDCCHCLSDCCHOSDCCH Drop rate [%]100*(S(CNDROP-CNRELCONG) / SCMSESTAB)See list belowSee list belowCLSDCCHSDCCH Erlang Minutes per DropS(PERLEN * CTRALACC / CNSCAN) / S(CNDROP)CLSDCCHIf (CNDROP or CNSCAN) = 0 the answer shall be "#DIV/Zero". This could indicate OT not subscribed to or NO traffic or very low traffic as it is very rare that there are NO dropas at all. CNSCAN shall never be zero!SDCCH Drop Reason, Low SS (%)100 * (S(CDISSS + CDISSSSUB) / SCNDROP)CLSDCCHCELLCCHDRSDCCH Drop Reason, Bad Quality (%)100 * (S(CDISQA + CDISQASUB) / SCNDROP)CLSDCCHCELLCCHDRSDCCH Drop Reason, Excessive TA (%)100 * (SCDISTA / SCNDROP)CLSDCCHCELLCCHDRSDCCH Drop Reason, Other (%)100 * (S(CNDROP - (CDISSS + CDISSSSUB + CDISQA + CDISQASUB + CDISTA)) / SCNDROP)CLSDCCHCELLCCHDRTCH Assignment success rate [%]100*(STCASSALL / STASSALL)See list belowSee list belowCLTCHNCELLRELNICELASSNECELLRELNECELASSTCH Mean Holding Time (Sec.)60*(S(PERLEN*TFTRALACC / TFNSCAN) + S(PERLEN*THTRALACC / THNSCAN)) / S(TFMSESTB + THMSESTB)CELTCHFCELTCHHThis has to be a case-by-case situation as follows:

i) If (TFMSESTB + THMSESTB) = 0 the answer shall be "#DIV/Zero" (indicates no traffic). ii) If ANY of TFNSCAN or THNSCAN = 0 this terms shall be removed from the formula and the valid result shall be shown. These two counters are only indicating # measurements and they should not be 0 unless HR (THNSCAN) is not used or OT not subscribed to.Subscriber Perceived TCH Congestion [%]100*(S(CNRELCONG+TFNRELCONG+TFNRELCONGSUB+THNRELCONG+THNRELCONGSUB) / STASSALL)CLSDCCHCELTCHFCELTCHHCLTCHRetainabilityTCH Drop rate [%]100*( S(TFNDROP+TFNDROPSUB+THNDROP+THNDROPSUB) / S(THCASSALL+THCASSALLSUB+TFCASSALLSUB+TFCASSALL))See list belowSee list belowCELTCHFCELTCHHNCELLRELNICELASSNECELLRELNECELASSDrop Reason, Low SS DL (%)100 * (S(TFDISSDL +THDISSDL + TFDISSDLSUB +THDISSDLSUB) / S(TFNDROP + THNDROP + TFNDROPSUB+ THNDROPSUB))CLTCHDRFCLTCHDRHCELTCHFCELTCHHDrop Reason, Low SS UL (%)100 * (S(TFDISSUL + THDISSUL + TFDISSULSUB +THDISSULSUB) / S(TFNDROP +THNDROP + TFNDROPSUB + THNDROPSUB))CLTCHDRFCLTCHDRHCELTCHFCELTCHHDrop Reason, Low SS UL/DL [%]100 * (S(TFDISSBL + THDISSBL + TFDISSBLSUB +THDISSBLSUB) / S(TFNDROP+THNDROP+TFNDROPSUB + THNDROPSUB))CLTCHDRFCLTCHDRHCELTCHFCELTCHHDrop Reason, Bad Quality DL (%)100 * (S(TFDISQADL +THDISQADL + TFDISQADLSUB +THDISQADLSUB) / S(TFNDROP + THNDROP + TFNDROPSUB +THNDROPSUB))CLTCHDRFCLTCHDRHCELTCHFCELTCHHDrop Reason, Bad Quality UL (%)100 * (S(TFDISQAUL+THDISQAUL +TFDISQAULSUB +THDISQAULSUB) / S(TFNDROP + THNDROP + TFNDROPSUB + THNDROPSUB))CLTCHDRFCLTCHDRHCELTCHFCELTCHHDrop Reason, Bad Quality UL/DL (%)100 * (S(TFDISQABL + THDISQABL + TFDISQABLSUB +THDISQABLSUB) / S(TFNDROP+THNDROP +TFNDROPSUB+ THNDROPSUB))CLTCHDRFCLTCHDRHCELTCHFCELTCHHDrop Reason, Suddenly Lost Connections (%)100 * (S(TFSUDLOS + THSUDLOS + TFSUDLOSSUB +THSUDLOSSUB) / S(TFNDROP + THNDROP +TFNDROPSUB+ THNDROPSUB))CLTCHDRFCLTCHDRHCELTCHFCELTCHHDrop Reason, Excessive TA (%)100 * (S(TFDISTA + THDISTA) / S(TFNDROP +THNDROP +TFNDROPSUB + THNDROPSUB))CLTCHDRFCLTCHDRHCELTCHFCELTCHHDrop Reason, FER DL (%)100 * (S(TFDISFERDL+ TFDISFERDLSUB+THDISFERDL+THDISFERDLSUB) / S(TFNDROP +THNDROP + TFNDROPSUB + THNDROPSUB))CLTCHDRFCLTCHDRHCELTCHFCELTCHHDrop Reason, FER UL (%)100 * (S(TFDISFERUL+TFDISFERULSUB+THDISFERUL+THDISFERULSUB) / S(TFNDROP+THNDROP+TFNDROPSUB+THNDROPSUB))CLTCHDRFCLTCHDRHCELTCHFCELTCHHDrop Reason, FER UL/DL (%)100 * (S(TFDISFERBL+TFDISFERBLSUB+THDISFERBL+THDISFERBLSUB) / S(TFNDROP + THNDROP + TFNDROPSUB+THNDROPSUB))CLTCHDRFCLTCHDRHCELTCHFCELTCHHDrop Reason, Other (%)100 * (S(TFNDROP+THNDROP+TFNDROPSUB+THNDROPSUB-TFDISTA-THDISTA-TFDISSUL-TFDISSDL-TFDISSBL-TFDISSULSUB-TFDISSDLSUB-TFDISSBLSUB-THDISSUL-THDISSDL-THDISSBL-THDISSULSUB-THDISSDLSUB-THDISSBLSUB-TFDISFERUL-TFDISFERDL-TFDISFERBL-TFDISFERULSUB-TFDISFERDLSUB-TFDISFERBLSUB-THDISFERUL-THDISFERDL-THDISFERBL-THDISFERULSUB-THDISFERDLSUB-THDISFERBLSUB-TFDISQAUL-TFDISQADL-TFDISQABL-TFDISQAULSUB-TFDISQADLSUB-TFDISQABLSUB-THDISQAUL-THDISQADL-THDISQABL-THDISQAULSUB-THDISQADLSUB-THDISQABLSUB-TFSUDLOS-TFSUDLOSSUB-THSUDLOS-THSUDLOSSUB) / S(TFNDROP+THNDROP+TFNDROPSUB+THNDROPSUB))CLTCHDRFCLTCHDRHCELTCHFCELTCHHCall minutes per drop [min](S(PERLEN*TFTRALACC/TFNSCAN) + S(PERLEN*THTRALACC/THNSCAN)) / S(TFNDROP+TFNDROPSUB+THNDROP+THNDROPSUB)NoneNoneCELTCHFCELTCHHThis is a case-by-case situation as follows:

i) If (TFNDROP+TFNDROPSUB+THNDROP+THNDROPSUB) = 0 the answer shall be "#DIV/Zero". Could e.g. indicate OT not subscribed to or NO traffic or very low traffic as it is very rare that there are NO dropas at all.ii) If ANY of TFNSCAN or THNSCAN = 0 this terms shall be removed from the formula and the valid result shall be shown. These two counters are only indicating # measurements and they should not be 0 unless HR (THNSCAN) is not used or OT not subscribed to.Handover success rate [%]100*(S(SUMOHOSUCC+SUMEOHOSUCC) / S(SUMOHOATT+SUMEOHOATT))NoneNoneNCELLRELNICELASSNECELLRELNECELASSHandover lost rate [%]100*(S(SUMOHOLOST+SUMEHOLOST) / S(SUMOHOATT+SUMEOHOATT))NoneNoneNCELLRELNICELASSNECELLRELNECELASSIntegritySpeech quality good (UL) [%] (R10-07B)100*(S(TSQIGOOD+TSQIGOODSUB+TSQIGOODAF+TSQIGOODSUBAF+TSQIGOODAH+TSQIGOODSUBAH) / S(TSQIGOOD+TSQIGOODSUB+TSQIGOODAF+TSQIGOODSUBAF+TSQIGOODAH+TSQIGOODSUBAH+TSQIACCPT+TSQIACCPTSUB+TSQIACCPTAF+TSQIACCPTSUBAF+TSQIACCPTAH+TSQIACCPTSUBAH+TSQIBAD+TSQIBADSUB+TSQIBADAF+TSQIBADSUBAF+TSQIBADAH+TSQIBADSUBAH))See list belowSee list belowCELLSQISpeech quality acceptable (UL) [%](R10-07B)100*(S(TSQIACCPT+TSQIACCPTSUB+TSQIACCPTAF+TSQIACCPTSUBAF+TSQIACCPTAH+TSQIACCPTSUBAH) / S(TSQIGOOD+TSQIGOODSUB+TSQIGOODAF+TSQIGOODSUBAF+TSQIGOODAH+TSQIGOODSUBAH+TSQIACCPT+TSQIACCPTSUB+TSQIACCPTAF+TSQIACCPTSUBAF+TSQIACCPTAH+TSQIACCPTSUBAH+TSQIBAD+TSQIBADSUB+TSQIBADAF+TSQIBADSUBAF+TSQIBADAH+TSQIBADSUBAH))CELLSQISpeech quality bad (UL) [%](R10-07B)100*(S(TSQIBAD+TSQIBADSUB+TSQIBADAF+TSQIBADSUBAF+TSQIBADAH+TSQIBADSUBAH) / STSQIGOOD+TSQIGOODSUB+TSQIGOODAF+TSQIGOODSUBAF+TSQIGOODAH+TSQIGOODSUBAH+TSQIACCPT+TSQIACCPTSUB+TSQIACCPTAF+TSQIACCPTSUBAF+TSQIACCPTAH+TSQIACCPTSUBAH+TSQIBAD+TSQIBADSUB+TSQIBADAF+TSQIBADSUBAF+TSQIBADAH+TSQIBADSUBAH))CELLSQISpeech quality good (UL) [%] (08A and onwards)100*(S(TSQIGOOD+TSQIGOODSUB+TSQIGOODAF+TSQIGOODSUBAF+TSQIGOODAH+TSQIGOODSUBAH+TSQIGOODAW+TSQIGOODSUBAW)/S(TSQIGOOD+TSQIGOODSUB+TSQIGOODAF+TSQIGOODSUBAF+TSQIGOODAH+TSQIGOODSUBAH+TSQIACCPT+TSQIACCPTSUB+TSQIACCPTAF+TSQIACCPTSUBAF+TSQIACCPTAH+TSQIACCPTSUBAH+TSQIBAD+TSQIBADSUB+TSQIBADAF+TSQIBADSUBAF+TSQIBADAH+TSQIBADSUBAH+TSQIGOODAW+TSQIGOODSUBAW+ TSQIACCPTAW+TSQIACCPTSUBAW+TSQIBADAW+TSQIBADSUBAW))See list belowSee list belowCELLSQISpeech quality acceptable (UL) [%](08A and onwards)100*(S(TSQIACCPT+TSQIACCPTSUB+TSQIACCPTAF+TSQIACCPTSUBAF+TSQIACCPTAH+TSQIACCPTSUBAH+TSQIACCPTAW+TSQIACCPTSUBAW)/S(TSQIGOOD+TSQIGOODSUB+TSQIGOODAF+TSQIGOODSUBAF+TSQIGOODAH+TSQIGOODSUBAH+TSQIACCPT+TSQIACCPTSUB+TSQIACCPTAF+TSQIACCPTSUBAF+TSQIACCPTAH+TSQIACCPTSUBAH+TSQIBAD+TSQIBADSUB+TSQIBADAF+TSQIBADSUBAF+TSQIBADAH+TSQIBADSUBAH+TSQIGOODAW+TSQIGOODSUBAW+ TSQIACCPTAW+TSQIACCPTSUBAW+TSQIBADAW+TSQIBADSUBAW))CELLSQISpeech quality bad (UL) [%](08A and onwards)100*(S(TSQIBAD+TSQIBADSUB+TSQIBADAF+TSQIBADSUBAF+TSQIBADAH+TSQIBADSUBAH+TSQIBADAW+TSQIBADSUBAW)/S(TSQIGOOD+TSQIGOODSUB+TSQIGOODAF+TSQIGOODSUBAF+TSQIGOODAH+TSQIGOODSUBAH+TSQIACCPT+TSQIACCPTSUB+TSQIACCPTAF+TSQIACCPTSUBAF+TSQIACCPTAH+TSQIACCPTSUBAH+TSQIBAD+TSQIBADSUB+TSQIBADAF+TSQIBADSUBAF+TSQIBADAH+TSQIBADSUBAH+TSQIGOODAW+TSQIGOODSUBAW+ TSQIACCPTAW+TSQIACCPTSUBAW+TSQIBADAW+TSQIBADSUBAW))CELLSQISpeech quality good (DL) [%](R10-07B)100*(S(TSQIGOODDL+TSQIGOODSUBDL+TSQIGOODAFDL+TSQIGOODSUBAFDL+TSQIGOODAHDL+TSQIGOODSUBAHDL) / S(TSQIGOODDL+TSQIGOODSUBDL+TSQIGOODAFDL+TSQIGOODSUBAFDL+TSQIGOODAHDL+TSQIGOODSUBAHDL+TSQIACCPTDL+TSQIACCPTSUBDL+TSQIACCPTAFDL+TSQIACCPTSUBAFDL+TSQIACCPTAHDL+TSQIACCPTSUBAHDL+TSQIBADDL+TSQIBADSUBDL+TSQIBADAFDL+TSQIBADSUBAFDL+TSQIBADAHDL+TSQIBADSUBAHDL))See list belowSee list belowCELLSQIDLSpeech quality acceptable (DL) [%](R10-07B)100*(S(TSQIACCPTDL+TSQIACCPTSUBDL+TSQIACCPTAFDL+TSQIACCPTSUBAFDL+TSQIACCPTAHDL+TSQIACCPTSUBAHDL) / S(TSQIGOODDL+TSQIGOODSUBDL+TSQIGOODAFDL+TSQIGOODSUBAFDL+TSQIGOODAHDL+TSQIGOODSUBAHDL+TSQIACCPTDL+TSQIACCPTSUBDL+TSQIACCPTAFDL+TSQIACCPTSUBAFDL+TSQIACCPTAHDL+TSQIACCPTSUBAHDL+TSQIBADDL+TSQIBADSUBDL+TSQIBADAFDL+TSQIBADSUBAFDL+TSQIBADAHDL+TSQIBADSUBAHDL))CELLSQIDLSpeech quality bad (DL) [%](R10-07B)100*(S(TSQIBADDL+TSQIBADSUBDL+TSQIBADAFDL+TSQIBADSUBAFDL+TSQIBADAHDL+TSQIBADSUBAHDL) / S(TSQIGOODDL+TSQIGOODSUBDL+TSQIGOODAFDL+TSQIGOODSUBAFDL+TSQIGOODAHDL+TSQIGOODSUBAHDL+TSQIACCPTDL+TSQIACCPTSUBDL+TSQIACCPTAFDL+TSQIACCPTSUBAFDL+TSQIACCPTAHDL+TSQIACCPTSUBAHDL+TSQIBADDL+TSQIBADSUBDL+TSQIBADAFDL+TSQIBADSUBAFDL+TSQIBADAHDL+TSQIBADSUBAHDL))CELLSQIDLSpeech quality good (DL) [%](08A and onwards)100*(S(TSQIGOODDL+TSQIGOODSUBDL+TSQIGOODAFDL+TSQIGOODSUBAFDL+TSQIGOODAHDL+TSQIGOODSUBAHDL+TSQIGOODAWDL+TSQIGOODSUBAWDL)/S(TSQIGOODDL+TSQIGOODSUBDL+TSQIGOODAFDL+TSQIGOODSUBAFDL+TSQIGOODAHDL+TSQIGOODSUBAHDL+TSQIACCPTDL+TSQIACCPTSUBDL+TSQIACCPTAFDL+TSQIACCPTSUBAFDL+TSQIACCPTAHDL+TSQIACCPTSUBAHDL+TSQIBADDL+TSQIBADSUBDL+TSQIBADAFDL+TSQIBADSUBAFDL+TSQIBADAHDL+TSQIBADSUBAHDL+TSQIGOODAWDL+TSQIGOODSUBAWDL+TSQIACCPTAWDL+TSQIACCPTSUBAWDL+TSQIBADAWDL+TSQIBADSUBAWDL))See list belowSee list belowCELLSQIDLSpeech quality acceptable (DL) [%](08A and onwards)100*(S(TSQIACCPTDL+TSQIACCPTSUBDL+TSQIACCPTAFDL+TSQIACCPTSUBAFDL+TSQIACCPTAHDL+TSQIACCPTSUBAHDL+TSQIACCPTAWDL+TSQIACCPTSUBAWDL)/S(TSQIGOODDL+TSQIGOODSUBDL+TSQIGOODAFDL+TSQIGOODSUBAFDL+TSQIGOODAHDL+TSQIGOODSUBAHDL+TSQIACCPTDL+TSQIACCPTSUBDL+TSQIACCPTAFDL+TSQIACCPTSUBAFDL+TSQIACCPTAHDL+TSQIACCPTSUBAHDL+TSQIBADDL+TSQIBADSUBDL+TSQIBADAFDL+TSQIBADSUBAFDL+TSQIBADAHDL+TSQIBADSUBAHDL+TSQIGOODAWDL+TSQIGOODSUBAWDL+TSQIACCPTAWDL+TSQIACCPTSUBAWDL+TSQIBADAWDL+TSQIBADSUBAWDL))CELLSQIDLSpeech quality bad (DL) [%](08A and onwards)100*(S(TSQIBADDL+TSQIBADSUBDL+TSQIBADAFDL+TSQIBADSUBAFDL+TSQIBADAHDL+TSQIBADSUBAHDL+TSQIBADAWDL+TSQIBADSUBAWDL)/S(TSQIGOODDL+TSQIGOODSUBDL+TSQIGOODAFDL+TSQIGOODSUBAFDL+TSQIGOODAHDL+TSQIGOODSUBAHDL+TSQIACCPTDL+TSQIACCPTSUBDL+TSQIACCPTAFDL+TSQIACCPTSUBAFDL+TSQIACCPTAHDL+TSQIACCPTSUBAHDL+TSQIBADDL+TSQIBADSUBDL+TSQIBADAFDL+TSQIBADSUBAFDL+TSQIBADAHDL+TSQIBADSUBAHDL+TSQIGOODAWDL+TSQIGOODSUBAWDL+TSQIACCPTAWDL+TSQIACCPTSUBAWDL+TSQIBADAWDL+TSQIBADSUBAWDL))CELLSQIDLInter system operabilityGSM to UTRAN Handover success rate [%]100*(S(SUMHOVERSUCUTRAN / SSUMHOVERCNTUTRAN))NoneNoneNUCELLRELGSM to UTRAN Handover lost rate [%]100*(S(SUMHOLOSTUTRAN / SSUMHOVERCNTUTRAN))NoneNoneNUCELLRELTraffic levelTCH Traffic [Erlang]S(TFTRALACC / TFNSCAN) + S(THTRALACC / THNSCAN)NoneNoneCELTCHFCELTCHHIf any of TFNSCAN or THNSCAN = 0 this terms shall be removed from the formula and the valid result shall be shown. These two counters are only indicating # measurements and they should not be 0 unless e.g. HR is not used or the OT is not subscribed to.SDCCH Traffic [Erlang]S(CTRALACC / CNSCAN)NoneNoneCLSDCCHIf CNSCAN = 0 the answer shall be "#DIV/Zero". This could indicate OT not subscribed to as CNSCAN shall never be zero!General GPRS KPIsIP transfer interrupts, session minutes per interruptIP transfer interrupts DL, session minutes per interrupt [TBF minutes]S(TBFDLGPRS+TBFDLEGPRS) / S(6*(LDISTFI + LDISRR + LDISOTH + FLUDISC))See list belowSee list belowCELLGPRS2TRAFDLGPRSIP transfer interrupts DL due to lack of resources, %100*SLDISTFI / S(LDISTFI + LDISRR + LDISOTH + FLUDISC)CELLGPRS2TRAFDLGPRSIP transfer interrupts DL due to lost radio contact, %100*SLDISRR / S(LDISTFI + LDISRR + LDISOTH + FLUDISC)CELLGPRS2TRAFDLGPRSIP transfer interrupts DL due to Mobility, %100*SFLUDISC / S(LDISTFI + LDISRR + LDISOTH + FLUDISC)CELLGPRS2TRAFDLGPRSIP transfer interrupts DL due to other reason, %100*SLDISOTH / S(LDISTFI + LDISRR + LDISOTH + FLUDISC)CELLGPRS2TRAFDLGPRSIP Transfer interrupts UL, session minutes per interrupt [TBF minutes]

N.B! Counter 'CRSULREL' is available BSS 06B and onwards. In earlier releases the 'CRSULREL' counter value is included in 'IAULREL'.Counter 'PREJABISCONG' is available from BSS 08A and onwards. In earlier releases the 'PREJABISCONG' counter value is included in 'PREJTFI'.S(TBFULGPRS+TBFULEGPRS) / S(6*(IAULREL + CRSULREL + PREJTFI + PREJOTH+OTHULREL+PREEMPTULREL+PREJABISCONG))CELLGPRS2TRAFULGPRSCELLGPRS3IP Transfer interrupts UL due to lost radio contact, %100*SIAULREL / S(IAULREL + CRSULREL + PREJTFI + PREJOTH+OTHULREL+PREEMPTULREL+PREJABISCONG)CELLGPRS2TRAFULGPRSIP Transfer interrupts UL due to access reject lack of resources, %100*SPREJTFI / S(IAULREL + CRSULREL + PREJTFI + PREJOTH+OTHULREL+PREEMPTULREL+PREJABISCONG)CELLGPRS2TRAFULGPRSIP Transfer interrupts UL due to access reject other reason, %100*SPREJOTH / S(IAULREL + CRSULREL + PREJTFI + PREJOTH+OTHULREL+PREEMPTULREL+PREJABISCONG)CELLGPRS2TRAFULGPRSIP Transfer interrupts UL due to abnormal TBF release other reason, %100*SOTHULREL / S(IAULREL + CRSULREL + PREJTFI + PREJOTH+OTHULREL+PREEMPTULREL+PREJABISCONG)CELLGPRS2TRAFULGPRSIP Transfer interrupts UL due to abnormal TBF release due to preemption, %100*SPREEMPTULREL / S(IAULREL + CRSULREL + PREJTFI + PREJOTH+OTHULREL+PREEMPTULREL+PREJABISCONG)CELLGPRS2TRAFULGPRSIP Transfer interrupts UL due to Cell reselections, %

N.B! Formula only applicable for BSS 06B and onwards. (In earlier releases the 'CRSULREL' counter value is included in 'IAULREL').100*SCRSULREL / S(IAULREL + CRSULREL + PREJTFI + PREJOTH+OTHULREL+PREEMPTULREL+PREJABISCONG)CELLGPRS2TRAFULGPRSIP Transfer interrupts UL due to access rejects caused by packet Abis overload, %

N.B! Counter 'PREJABISCONG' is available from BSS 08A and onwards. In earlier releases the 'PREJABISCONG' counter value is included in 'PREJTFI'.100*SPREJABISCONG / S(IAULREL + CRSULREL + PREJTFI + PREJOTH+OTHULREL+PREEMPTULREL+PREJABISCONG)CELLGPRS3TRAFULGPRSGPRS AvailabilityGPRS Availability, [percentage of time] (R12 and onwards)100*(1-(5*S(GPRSCELLAVA) / SPERLEN))NoneNoneCELLGPRS3Best effort service KPIs (traffic class background and interactive)IP Latency GPRS, [ms]S(ACCGNOEXTIPLAT+ACCGEXTIPLAT) / S(GNOEXTIPLAT+GEXTIPLAT)See list belowSee list belowCELLGPRS3Average IP Latency: GPRS Extended UL Capable MS(ms)SACCGEXTIPLAT / SGEXTIPLATCELLGPRS3Average IP Latency: GPRS No Extended UL Capable MS(ms)SACCGNOEXTIPLAT / SGNOEXTIPLATCELLGPRS3IP Latency EGPRS [ms]S(ACCEGNOEXTIPLAT+ACCEGEXTIPLAT+ACCEGRLIPLAT) / S(EGNOEXTIPLAT+EGEXTIPLAT+EGRLIPLAT)See list belowSee list belowCELLGPRS3Average IP Latency: EGPRS Extended UL Capable MS(ms)SACCEGEXTIPLAT / SEGEXTIPLATCELLGPRS3Average IP Latency: EGPRS No Extended UL Capable MS(ms)SACCEGNOEXTIPLAT / SEGNOEXTIPLATCELLGPRS3Average IP Latency: EGPRS Reduced Latency Capable MS(ms)SACCEGRLIPLAT / SEGRLIPLATCELLGPRS3IP Throughput GPRSIP Throughput GPRS Downlink (DL), kbit/sS(DLBGGTHR+DLTHP1GTHR+DLTHP2GTHR+DLTHP3GTHR) / S(DLBGGDATA+DLTHP1GDATA+DLTHP2GDATA+DLTHP3GDATA)See list belowSee list belowCELLQOSGSimultaneous TBFs per B- and G-PDCH on DLS(DLTBFPBPDCH + DLTBFPGPDCH) / S(DLBPDCH + DLGPDCH)TRAFDLGPRSAverage number simultaneous of DL GPRS TBFs in the CellSTBFDLGPRS / STRAFFDLGPRSSCANTRAFDLGPRSMultislot Utilization GPRS, DL %(S(MUTILBASIC + MUTILGPRS) / S(TRAFF2BTBFSCAN + TRAFF2GTBFSCAN))TRAFGPRS2Radio Link Bit Rate (DL) per PDCH CS14 transfers, kbit/s

N.B! N.B! This formula is applicable for BSS R11 and all subsequent releases.S(INT8BRGPRSTBF + INT10BRGPRSTBF + INT12BRGPRSTBF+ INT14BRGPRSTBF + INT16BRGPRSTBF + INT18BRGPRSTBF) /(0,020*SCS14DLSCHED)RLINKBITRCELLGPRS2Radio Link Bit Rate (DL) per PDCH CS14 transfers, kbit/s

N.B! This formula is an alternative to the above formula and is applicable for BSS 06B and all subsequent releases.SCS14DLACK/(20*SCS14DLSCHED)CELLGPRS2Average maximum number of TS reservable by MSs for DL GPRS TBFsSMAXGTSDL / S(TRAFF2BTBFSCAN + TRAFF2GTBFSCAN)TRAFGPRS2IP Throughput GPRS Uplink (UL), kbit/sS(ULBGGTHR+ULTHP1GTHR+ULTHP2GTHR+ULTHP3GTHR) / S(ULBGGDATA+ULTHP1GDATA+ULTHP2GDATA+ULTHP3GDATA)See list belowSee list belowCELLQOSGSimultaneous TBFs per B- and G-PDCH on ULS(ULTBFPBPDCH + ULTBFPGPDCH) / S(ULBPDCH + ULGPDCH)TRAFULGPRSAverage number simultaneous of UL GPRS TBFs in the CellSTBFULGPRS / STRAFFULGPRSSCANTRAFULGPRSMultislot Utilization GPRS, UL %(S(MUTILBASICUL + MUTILGPRSUL) / S(BULTBFSCAN+GULTBFSCAN))TRAFGPRS3Radio Link Bit Rate (UL) per PDCH GPRS transfers, kbit/sSCS12ULACK / (20*SCS12ULSCHED)CELLGPRSAverage maximum number of TS reservable by MSs for UL GPRS TBFsSMAXGTSUL/ S(BULTBFSCAN+GULTBFSCAN)TRAFGPRS3IP Throughput EGPRSIP Throughput EGPRS Downlink (DL), kbit/sS(DLBGEGTHR+DLTHP1EGTHR+DLTHP2EGTHR+DLTHP3EGTHR) / S(DLBGEGDATA+DLTHP1EGDATA+DLTHP2EGDATA+DLTHP3EGDATA)See list belowSee list belowCELLQOSEGSimultaneous TBFs per E-PDCHs on DLSDLTBFPEPDCH / SDLEPDCHTRAFDLGPRSAverage number simultaneous of DL EGPRS TBFs in the CellSTBFDLEGPRS/STRAFFDLGPRSSCANTRAFDLGPRSMultislot Utilization EGPRS, DL %(SMUTILEGPRS / STRAFF2ETBFSCAN)TRAFGPRS2Radio Link Bit Rate (DL) per PDCH EGPRS transfers, kbit/s

N.B! N.B! This formula is applicable for BSS R11 and all subsequent releases.S(INT10BREGPRSTBF + INT15BREGPRSTBF + INT20BREGPRSTBF + INT25BREGPRSTBF + INT30BREGPRSTBF + INT35BREGPRSTBF + INT40BREGPRSTBF + INT45BREGPRSTBF + INT50BREGPRSTBF + INT55BREGPRSTBF) / (0,020*SMC19DLSCHED)RLINKBITRCELLGPRS2Radio Link Bit Rate (DL) per PDCH EGPRS transfers, kbit/s

N.B! This formula is an alternative to the above formula and is applicable for BSS 06B and all subsequent releases.SMC19DLACK/(20*S(MC19DLSCHED)CELLGPRS2Average maximum number of TS reservable by MSs for DL EGPRS TBFsSMAXEGTSDL / STRAFF2ETBFSCANTRAFGPRS2IP Throughput EGPRS Uplink (UL), kbit/sS(ULBGEGTHR+ULTHP1EGTHR+ULTHP2EGTHR+ULTHP3EGTHR) / S(ULBGEGDATA+ULTHP1EGDATA+ULTHP2EGDATA+ULTHP3EGDATA)See list belowSee list belowCELLQOSEGSimultaneous TBFs per E-PDCH on ULSULTBFPEPDCH / SULEPDCHTRAFULGPRSAverage number simultaneous of UL EGPRS TBFs in the CellSTBFULEGPRS / STRAFFULGPRSSCANTRAFULGPRSMultislot Utilization EGPRS, UL %(SMUTILEGPRSUL / SEULTBFSCAN)TRAFGPRS3Radio Link Bit Rate (UL) per PDCH EGPRS transfers, kbit/sSMC19ULACK / 20*SMC19ULSCHEDCELLGPRSAverage maximum number of TS reservable by MSs for UL EGPRS TBFsSMAXEGTSUL / SEULTBFSCANTRAFGPRS3IP User data volumeIP User data volume uplink MB/h(GMM/SM signaling excluded)60*(S((VOLULSTRACC+ULINTBGVOL+LLCVOLULEIT+DTMULSTRDATA) /(8*1000*PERLEN)))See list belowSee list belowCELLGPRS3CLDTMQOSCELLQOSSCELLEIT2Streaming User data volume uplink MB/h60 * (S(VOLULSTRACC/(8*1000*PERLEN)))CELLQOSSInteractive and Background User data volume uplink MB/h60*(S(ULINTBGVOL/(8*1000*PERLEN)))CELLGPRS3DTM User data volume uplink MB/h60*(S(DTMULSTRDATA/(8*1000*PERLEN)))CLDTMQOSEIT User data volume uplink MB/h60*(S(LLCVOLULEIT/(8*1000*PERLEN)))CELLEIT2GMM/SM Signalling data volume uplink MB/h60*(S(ULGMMVOL/(8*1000*PERLEN)))CELLGPRS3IP User data volume downlink MB/h(GMM/SM signaling excluded)60*(S((DLSTRVOL+DLINTBGVOL)/(8*1000*PERLEN)))See list belowSee list belowCELLGPRS3Streaming User data volume downlink MB/h60*(S(DLSTRVOL/(8*1000*PERLEN)))CELLGPRS3Interactive and Background User data volume downlink MB/h60*(S(DLINTBGVOL/(8*1000*PERLEN)))CELLGPRS3GMM/SM Signalling data volume Downlink MB/h60*(S(DLGMMVOL/(8*1000*PERLEN)))CELLGPRS3