singleran kpi reference(v900r013c00_03)(pdf)-en

SingleRANV900R013C00

KPI Reference

Issue 03Date 2012-02-27

HUAWEI TECHNOLOGIES CO., LTD.

Copyright Huawei Technologies Co., Ltd. 2012. All rights reserved.No part of this document may be reproduced or transmitted in any form or by any means without prior writtenconsent of Huawei Technologies Co., Ltd. Trademarks and Permissions

and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.All other trademarks and trade names mentioned in this document are the property of their respective holders. NoticeThe purchased products, services and features are stipulated by the contract made between Huawei and thecustomer. All or part of the products, services and features described in this document may not be within thepurchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information,and recommendations in this document are provided "AS IS" without warranties, guarantees or representationsof any kind, either express or implied.

The information in this document is subject to change without notice. Every effort has been made in thepreparation of this document to ensure accuracy of the contents, but all statements, information, andrecommendations in this document do not constitute the warranty of any kind, express or implied. Huawei Technologies Co., Ltd.Address: Huawei Industrial Base

Bantian, LonggangShenzhen 518129People's Republic of China

Website: http://www.huawei.comEmail: [email protected]

Issue 03 (2012-02-27) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.

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About This Document

PurposeThe purpose of this document is to specify the SingleRAN KPI definition as well as countersused to calculate the KPI. The original KPI definition comes from the experiences of commercialnetwork management and radio network optimization. The KPI definition shall be updatedaccording to the requirement from customers.

VersionThe following table lists the product versions involved in this document.

Product Name Product VersionBSC6900 V900R013C00NodeB V100R013NodeB V200R013BTS3900 BTS3900V100R002C00SPC011BTS3000 BTS3000V100R009C00SPC011BTS3012/BTS3012AE/BTS3012II/BTS3006C/BTS3002

BTS3000V100R008C11SP03 and laterversions

DBS3900 BTS3000V100R008C11 and later versionsBTS3900/BTS3900A BTS3000V100R008C11 and later versionsBTS3900B/BTS3900E V100R008 and later versionsBTS30/BTS312/BTS3012A V302R007 and later versionsBTS30 and macro BTS312 (EDGE) G3BTS32V302R002C06SP05 and later

versionsBTS30 and macro BTS312 (PCS1900) G3BTS32V302R002C06SP05 and later

versionsMacro BTS3X (AMR) G3BTS32V302R002C06SP05 and later

versions

SingleRANKPI Reference About This Document


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Intended AudienceThis document is intended for:l Network plannersl Field engineersl System engineers

Organization1 Changes in the SingleRAN KPI ReferenceThis chapter describes the changes made in the SingleRAN KPI Reference.2 GSM Service KPIThe following KPIs are GSM Service KPIs.3 UMTS Service KPIThe following KPIs are UMTS Service KPIs.

ConventionsSymbol ConventionsThe symbols that may be found in this document are defined as follows.

Symbol DescriptionIndicates a hazard with a high level of risk, which if notavoided, will result in death or serious injury.

Indicates a hazard with a medium or low level of risk, whichif not avoided, could result in minor or moderate injury.

Indicates a potentially hazardous situation, which if notavoided, could result in equipment damage, data loss,performance degradation, or unexpected results.Indicates a tip that may help you solve a problem or savetime.Provides additional information to emphasize or supplementimportant points of the main text.

General ConventionsThe general conventions that may be found in this document are defined as follows.



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Convention DescriptionTimes New Roman Normal paragraphs are in Times New Roman.Boldface Names of files, directories, folders, and users are in

boldface. For example, log in as user root.Italic Book titles are in italics.Courier New Examples of information displayed on the screen are in

Courier New.

Command ConventionsThe command conventions that may be found in this document are defined as follows.

Convention DescriptionBoldface The keywords of a command line are in boldface.Italic Command arguments are in italics.[ ] Items (keywords or arguments) in brackets [ ] are optional.{ x | y | ... } Optional items are grouped in braces and separated by

vertical bars. One item is selected.[ x | y | ... ] Optional items are grouped in brackets and separated by

vertical bars. One item is selected or no item is selected.{ x | y | ... }* Optional items are grouped in braces and separated by

vertical bars. A minimum of one item or a maximum of allitems can be selected.

[ x | y | ... ]* Optional items are grouped in brackets and separated byvertical bars. Several items or no item can be selected.

GUI ConventionsThe GUI conventions that may be found in this document are defined as follows.

Convention DescriptionBoldface Buttons, menus, parameters, tabs, window, and dialog titles

are in boldface. For example, click OK.> Multi-level menus are in boldface and separated by the ">"

signs. For example, choose File > Create > Folder.

Keyboard OperationsThe keyboard operations that may be found in this document are defined as follows.



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Format DescriptionKey Press the key. For example, press Enter and press Tab.Key 1+Key 2 Press the keys concurrently. For example, pressing Ctrl+Alt

+A means the three keys should be pressed concurrently.Key 1, Key 2 Press the keys in turn. For example, pressing Alt, A means

the two keys should be pressed in turn.

Mouse OperationsThe mouse operations that may be found in this document are defined as follows.

Action DescriptionClick Select and release the primary mouse button without moving

the pointer.Double-click Press the primary mouse button twice continuously and

quickly without moving the pointer.Drag Press and hold the primary mouse button and move the

pointer to a certain position.



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Contents

About This Document.....................................................................................................................ii1 Changes in the SingleRAN KPI Reference..............................................................................12 GSM Service KPI...........................................................................................................................5

2.1 CS Accessibility KPIs........................................................................................................................................72.1.1 Congestion Rate on SDCCH per CELL (Due to Busy).............................................................................72.1.2 Call Drop Rate on SDCCH........................................................................................................................72.1.3 Assignment Success Rate..........................................................................................................................82.1.4 TCH Congestion Rate (Overflow).............................................................................................................82.1.5 TCH Seizure Success Rate........................................................................................................................92.1.6 Success Rate of Call Establishment.........................................................................................................102.1.7 BSS Call Establishment Success Rate.....................................................................................................102.1.8 OVERLOAD Rate of Paging..................................................................................................................11

2.2 CS CPU Usage KPI..........................................................................................................................................112.2.1 Average CPU Usage of the XPU.............................................................................................................11

2.3 CS Mobility KPIs.............................................................................................................................................122.3.1 Handover Success Rate...........................................................................................................................122.3.2 Success Rate of Radio Handover.............................................................................................................122.3.3 Internal Handover Success Rate per cell.................................................................................................132.3.4 Internal Radio Handover Success Rate per cell.......................................................................................142.3.5 Success Rate of Incoming External Inter-Cell Handovers......................................................................142.3.6 External Incoming Radio Handover Success Rate per Cell....................................................................152.3.7 Inter-BSC Outgoing Handover Success Rate..........................................................................................152.3.8 Success Rate of External Outgoing Cell Radio Handovers.....................................................................152.3.9 Success Rate of Dual-Band Handovers (900/850/810-1800/1900).........................................................162.3.10 Success Rate of Dual-Band Handovers (1800/1900-900/850/810).......................................................17

2.4 CS Receive Quality KPIs.................................................................................................................................182.4.1 Rx_QUALITY(UPLINK).......................................................................................................................182.4.2 Rx_QUALITY(DOWNLINK)................................................................................................................19

2.5 CS Resource Utilization KPIs..........................................................................................................................212.5.1 Traffic Volume on SDCCH.....................................................................................................................212.5.2 Traffic Volume on TCH..........................................................................................................................212.5.3 TCHH Traffic Volume............................................................................................................................22

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2.5.4 TCH Availability.....................................................................................................................................222.5.5 TCH Resource Utilizability.....................................................................................................................232.5.6 TRX Usability..........................................................................................................................................232.5.7 SDCCH Availability................................................................................................................................24

2.6 CS Retainability KPIs.......................................................................................................................................242.6.1 Call Drop Rate on TCH per Cell (Including Handover)..........................................................................252.6.2 Call Drop Rate on TCH per Cell (Excluding Handover)........................................................................252.6.3 Traffic Call Drop Ratio per cell...............................................................................................................272.6.4 Radio Drop Rate of TCH.........................................................................................................................282.6.5 Handover Drop Rate of TCH...................................................................................................................282.6.6 Call Complete Establishment Success Rate............................................................................................29

2.7 PS Accessibility KPIs.......................................................................................................................................292.7.1 Successful Uplink Assignment Rate........................................................................................................292.7.2 Successful Downlink Assignment Rate...................................................................................................302.7.3 Uplink TBF Establishment Success Rate................................................................................................302.7.4 Downlink TBF Establishment Success Rate...........................................................................................312.7.5 Uplink EGPRS TBF Establishment Success Rate...................................................................................312.7.6 Downlink EGPRS TBF Establishment Success Rate..............................................................................322.7.7 Uplink TBF Congestion Rate..................................................................................................................322.7.8 Downlink TBF Congestion Rate.............................................................................................................332.7.9 Uplink EGPRS TBF Congestion Rate.....................................................................................................332.7.10 Downlink EGPRS TBF Congestion Rate..............................................................................................34

2.8 PS Data Throughput KPIs................................................................................................................................342.8.1 Upload Data Throughput (kbit/s)............................................................................................................352.8.2 Download Data Throughput (kbit/s)........................................................................................................35

2.9 PS delay KPIs...................................................................................................................................................352.9.1 PING Delay (ms).....................................................................................................................................362.9.2 Mean Delay of PDP Activation (ms).......................................................................................................362.9.3 Mean Delay of Attachment (ms).............................................................................................................372.9.4 Cell Reselection Time (ms).....................................................................................................................37

2.10 PS Resource Utilization Rate KPIs................................................................................................................382.10.1 Uplink PDTCH/PACCH Utilization Rate.............................................................................................382.10.2 Downlink PDTCH/PACCH Utilization Rate........................................................................................382.10.3 PDCH Occupation Rate.........................................................................................................................392.10.4 BSC Reclaimed Dynamic PDCH Rate..................................................................................................39

2.11 PS Retainability KPIs.....................................................................................................................................402.11.1 Uplink TBF Drop Rate..........................................................................................................................402.11.2 Downlink TBF Drop Rate.....................................................................................................................412.11.3 Uplink EGPRS TBF Drop Rate.............................................................................................................412.11.4 Downlink EGPRS TBF Drop Rate........................................................................................................42

2.12 PS Transmission Performance KPIs...............................................................................................................422.12.1 Retransmission Rate of RLC Uplink GPRS Data Block.......................................................................42



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2.12.2 Retransmission Rate of RLC Downlink GPRS Data Block..................................................................432.12.3 Retransmission Rate of Uplink EGPRS RLC Data Block....................................................................432.12.4 Retransmission Rate of Downlink EGPRS RLC Data Block................................................................442.12.5 Rate of Uplink GPRS RLC Coding Scheme with CS3/CS4.................................................................452.12.6 Rate of Downlink GPRS RLC Coding Scheme with CS3/CS4............................................................462.12.7 Rate of Uplink EGPRS RLC Coding Scheme with MCS7/MCS8/MCS9............................................462.12.8 Rate of Downlink EGPRS RLC Coding Scheme with MCS7/MCS8/MCS9.......................................472.12.9 Average Throughput of Uplink GPRS RLC per PDCH (kbit/s)...........................................................482.12.10 Average Throughput of Downlink GPRS RLC per PDCH (kbit/s)....................................................492.12.11 Average Throughput of Uplink EGPRS RLC per PDCH (kbit/s).......................................................492.12.12 Average Throughput of Downlink EGPRS RLC per PDCH (kbit/s)..................................................502.12.13 Average Throughput of Uplink GPRS RLC per Cell (kbit/s).............................................................522.12.14 Average Throughput of Downlink GPRS RLC per Cell (kbit/s)........................................................522.12.15 Average Throughput of Uplink EGPRS RLC per Cell (kbit/s)...........................................................532.12.16 Average Throughput of Downlink EGPRS RLC per Cell (kbit/s)......................................................542.12.17 Average Throughput of Uplink GPRS LLC per User (kbit/s).............................................................552.12.18 Average Throughput of Downlink GPRS LLC per User (kbit/s)........................................................552.12.19 Average Throughput of Uplink EGPRS LLC per User (kbit/s)..........................................................562.12.20 Average Throughput of Downlink EGPRS LLC per User (kbit/s).....................................................56

3 UMTS Service KPI......................................................................................................................583.1 Accessibility.....................................................................................................................................................59

3.1.1 IU Paging Success Ratio..........................................................................................................................593.1.2 RRC Setup Success Ratio........................................................................................................................593.1.3 Radio Access Success Ratio....................................................................................................................623.1.4 PS Radio Access Success Ratio...............................................................................................................633.1.5 CS Radio Access Success Ratio..............................................................................................................643.1.6 AMR RAB Setup Success Ratio.............................................................................................................653.1.7 VP RAB Setup Success Ratio.................................................................................................................663.1.8 CS RAB Setup Success Ratio..................................................................................................................673.1.9 PS RAB Setup Success Ratio..................................................................................................................673.1.10 HSDPA RAB Setup Success Ratio.......................................................................................................683.1.11 HSUPA RAB Setup Success Ratio.......................................................................................................693.1.12 PS E-FACH RAB Setup Success Ratio.................................................................................................703.1.13 CS over HSPA RAB Setup Success Ratio............................................................................................703.1.14 HSDPA 64QAM RAB Setup Success Ratio.........................................................................................713.1.15 HSDPA MIMO RAB Setup Success Ratio...........................................................................................723.1.16 HSDPA DC RAB Setup Success Ratio.................................................................................................723.1.17 HSDPA MIMO64QAM RAB Setup Success Ratio..............................................................................733.1.18 PTM Channel Setup Success Ratio.......................................................................................................743.1.19 PTP Channel Setup Success Ratio.........................................................................................................743.1.20 RRC Congestion Ratio..........................................................................................................................753.1.21 CS RAB Congestion Ratio....................................................................................................................76



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3.1.22 PS RAB Congestion Ratio.....................................................................................................................773.2 Availability.......................................................................................................................................................78

3.2.1 Worst Cell Ratio......................................................................................................................................783.2.2 Paging Congestion Ratio.........................................................................................................................783.2.3 Call Admission Refused Ratio................................................................................................................793.2.4 Congested Cell Ratio...............................................................................................................................803.2.5 Radio Network Unavailability Ratio.......................................................................................................813.2.6 Average CPU Load..................................................................................................................................813.2.7 IUB Bandwidth Utilizing Ratio (UL)......................................................................................................823.2.8 IUB Bandwidth Utilizing Ratio (DL)......................................................................................................833.2.9 Cell Unavailability duration....................................................................................................................843.2.10 HSDPA Unavailability duration............................................................................................................853.2.11 HSUPA Unavailability duration............................................................................................................853.2.12 CE Consumption for a NodeB Cell.......................................................................................................863.2.13 Hardware Configured CE for a NodeB.................................................................................................863.2.14 Shared Group Configured License CE for a NodeB.............................................................................873.2.15 Shared Group License CE Consumption for a NodeB..........................................................................873.2.16 License Group Configured CE for a NodeB.........................................................................................883.2.17 License Group CE Consumption for a NodeB......................................................................................883.2.18 RTWP (Received Total Wideband Power)............................................................................................893.2.19 TCP (Transmitted Carrier Power).........................................................................................................893.2.20 R99 Code Utilization.............................................................................................................................90

3.3 Coverage...........................................................................................................................................................913.3.1 UL Interference Cell Ratio......................................................................................................................913.3.2 Soft Handover Overhead.........................................................................................................................91

3.4 Mobility............................................................................................................................................................943.4.1 Soft Handover Success Ratio..................................................................................................................943.4.2 Softer Handover Success Ratio...............................................................................................................943.4.3 AMR Soft Handover Success Ratio........................................................................................................953.4.4 CS64 Soft Handover Success Ratio.........................................................................................................963.4.5 PS Soft Handover Success Ratio.............................................................................................................963.4.6 Intra-frequency Hard Handover Success Ratio.......................................................................................973.4.7 Inter-frequency Hard Handover Success Ratio.......................................................................................973.4.8 Service Cell Change Success Ratio with SHO (H2H)............................................................................983.4.9 H2H Intra-Frequency Hard Handover Success Ratio..............................................................................993.4.10 H2H Inter-Frequency Hard Handover Success Ratio..........................................................................1003.4.11 H2D Inter-frequency Hard Handover Success Ratio...........................................................................1013.4.12 H2D Channel Switch Success Ratio....................................................................................................1023.4.13 D2H Channel Switch Success Ratio....................................................................................................1033.4.14 CS W2G Inter-RAT Handover Out Success Ratio..............................................................................1043.4.15 PS W2G Inter-RAT Handover Out Success Ratio..............................................................................1053.4.16 PS G2W Inter-RAT Handover In Success Ratio.................................................................................106



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3.4.17 HSDPA W2G Inter-RAT Handover Out Success Ratio.....................................................................1063.4.18 SRNC Relocation Success Ratio.........................................................................................................1073.4.19 TRNC Relocation Success Ratio.........................................................................................................1083.4.20 E-DCH Soft Handover Success Ratio.................................................................................................1093.4.21 E-DCH Cell Change Success Ratio with SHO....................................................................................1093.4.22 E-DCH Cell Change Success Ratio with Inter-HHO..........................................................................1113.4.23 E2D Channel Switch Success Ratio....................................................................................................1113.4.24 D2E Channel Switch Success Ratio....................................................................................................1123.4.25 E2D Handover Success Ratio with Inter HHO...................................................................................1133.4.26 HSUPA W2G Inter-RAT Handover Out Success Ratio.....................................................................1143.4.27 MBMS Service Mode Switch Success Ratio......................................................................................114

3.5 Retainability....................................................................................................................................................1153.5.1 CS Service Drop Ratio..........................................................................................................................1153.5.2 AMR Call Drop Ratio............................................................................................................................1163.5.3 VP Call Drop Ratio................................................................................................................................1173.5.4 AMR Traffic Drop Ratio.......................................................................................................................1183.5.5 VP Traffic Drop Ratio...........................................................................................................................1193.5.6 PS Call Drop Ratio................................................................................................................................1203.5.7 PS Call Drop Ratio (PCH).....................................................................................................................1213.5.8 PS R99 Call Drop Ratio.........................................................................................................................1223.5.9 PS R99 Call Drop Ratio (PCH).............................................................................................................1233.5.10 PS BE Call Drop Ratio........................................................................................................................1243.5.11 HSDPA Call Drop Ratio......................................................................................................................1253.5.12 HSDPA Call Drop Ratio (PCH)..........................................................................................................1263.5.13 HSUPA Call Drop Ratio......................................................................................................................1273.5.14 HSUPA Call Drop Ratio (PCH)..........................................................................................................1293.5.15 MBMS Service PTP drop Ratio..........................................................................................................130

3.6 Service Integrity.............................................................................................................................................1303.6.1 Average UL Throughput for PS R99 Service........................................................................................1303.6.2 Average DL Throughput for PS R99 Service........................................................................................1313.6.3 Average UL BLER for CS Service........................................................................................................1323.6.4 Average UL BLER for PS Service........................................................................................................1333.6.5 HSDPA Throughput..............................................................................................................................1343.6.6 HSUPA Throughput..............................................................................................................................1353.6.7 PS UL Throughput of RNC...................................................................................................................1363.6.8 PS DL Throughput of RNC...................................................................................................................1373.6.9 MBMS Service Throughput..................................................................................................................137

3.7 Traffic.............................................................................................................................................................1383.7.1 CS Equivalent Erlang of RNC...............................................................................................................1383.7.2 Number of CS Users..............................................................................................................................1393.7.3 Number of PS R99 Users.......................................................................................................................1403.7.4 Number of HSDPA Users......................................................................................................................144



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3.7.5 Number of HSUPA Users......................................................................................................................1443.7.6 Number of E-FACH Users....................................................................................................................1453.7.7 Number of CS Over HSPA Users..........................................................................................................1453.7.8 Number of HSDPA 64QAM Users.......................................................................................................1463.7.9 Number of HSDPA MIMO Users.........................................................................................................1463.7.10 Number of HSUPA 16QAM users......................................................................................................1473.7.11 Number of HSDPA MIMO64QAM Users..........................................................................................1473.7.12 Number of MBMS Users.....................................................................................................................1473.7.13 HSDPA RLC Traffic Volume.............................................................................................................1483.7.14 HSUPA RLC Traffic Volume.............................................................................................................1493.7.15 R99 Service UL Traffic Volume.........................................................................................................1493.7.16 R99 Service DL Traffic Volume.........................................................................................................1503.7.17 E-FACH Traffic Volume.....................................................................................................................153



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1 Changes in the SingleRAN KPI ReferenceThis chapter describes the changes made in the SingleRAN KPI Reference.

03 (2012-02-27)This is the third commercial release of V900R013C00.l GSM Service KPI

Compared with issue 02 (2011-08-31), this issue does not include any new topics.Compared with issue 02 (2011-08-31), this issue incorporates the following changes:

Content Description2.6.2 Call Drop Rate on TCH per Cell(Excluding Handover)2.6.1 Call Drop Rate on TCH per Cell(Including Handover)

Modify another KPI formula that beused when inter-RAT handovers aredetected.

Compared with issue 02 (2011-08-31), this issue does not exclude any topics.l UMTS Service KPI


Content Description3.2.8 IUB Bandwidth UtilizingRatio (DL)3.2.7 IUB Bandwidth UtilizingRatio (UL)

Added the scenario where the value of this KPIis incorrect to Note.

Compared with issue 02 (2011-08-31), this issue does not exclude any topics.

SingleRANKPI Reference 1 Changes in the SingleRAN KPI Reference


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02 (2011-08-31)This is the second commercial release of V900R013C00.l GSM Service KPI


Content Description2.6.2 Call Drop Rate on TCH perCell (Excluding Handover)

Add another KPI formula that be used when inter-RAT handovers are detected.

Compared with issue 01 (2011-04-25), this issue does not exclude any topics.l UMTS Service KPI


Content Description3.4.10 H2H Inter-Frequency HardHandover Success Ratio

The description of the KPI is optimized.

Compared with issue 01 (2011-04-25), this issue does not exclude any topics.

01 (2011-04-25)This is the first commercial release of V900R013C00.Compared with issue Draft A (2011-01-31), this issue does not include any new topics.Compared with issue Draft A (2011-01-31), this issue does not incorporate any changes.Compared with issue Draft A (2011-01-31), this issue does not exclude any topics.

Draft A (2011-01-31)This is the Draft A release of V900R013C00.l GSM Service KPI

Compared with issue 03 (2010-09-20) of V900R012C01, this issue does not include anynew topics.Compared with issue 03 (2010-09-20) of V900R012C01, this issue does not incorporateany changes.Compared with issue 03 (2010-09-20) of V900R012C01, this issue does not exclude anytopics.

l UMTS Service KPICompared with issue 02 (2010-09-20) of V900R012C01, this issue does not include anynew topics.



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Compared with issue 02 (2010-09-20) of V900R012C01, this issue incorporates thefollowing changes:

Content Description3.1.2 RRC Setup Success Ratio Correct the counter name

fromRRC.SuccConnEstab.OrgItrCall toRRC.SuccConnEstab.OrgInterCall

3.5.2 AMR Call Drop Ratio Correct the counter nameVS.RAB.NormRel.AMRWB.Iur toVS.RAB.NormRel.AMR.Iur

3.7.16 R99 Service DL TrafficVolume

Correct the counter name VS.PS.Int.DUL.32.Traffic to VS.PS.Int.DL.32.Traffic

3.5.12 HSDPA Call Drop Ratio(PCH)3.5.11 HSDPA Call Drop Ratio

Correct the counter nameVS.RAB.NormRel.HSUPA.Iur toVS.RAB.NormRel.HSDPA.Iur

3.6.5 HSDPA Throughput Correct the counter name VS.DataOutput.User-Data to VS.DataOutput.Mean/(VS.DataTtiRatio.Mean-VS.HSDPA.InactiveDataTtiRatio.Mean)

3.4.6 Intra-frequency HardHandover Success Ratio

Correct the counter nameVS.HHO.AttIntraFreqOut.InterRNC toVS.HHO.AttIntraFreqOut.IntraNodeB

3.5.7 PS Call Drop Ratio (PCH) Correct the counter name VS.DCCC.Succ.F2Pto VS.DCCC.F2P.Succ

3.5.9 PS R99 Call Drop Ratio(PCH)

Correct the counter name VS.PSR99.F2P.Succto VS.DCCC.Succ.F2P

3.1.4 PS Radio Access SuccessRatio

Correct the counter nameRRC.SuccConnEstab.OrgItrCall toRRC.SuccConnEstab.OrgInterCall

Compared with issue 02 (2010-09-20) of V900R012C01, this issue does not exclude anytopics.Compared with issue 01 (2010-04-10) of V900R012C01, this issue includes the followingnew topics: 3.1.20 RRC Congestion Ratio 3.1.21 CS RAB Congestion Ratio 3.1.22 PS RAB Congestion Ratio 3.4.6 Intra-frequency Hard Handover Success Ratio 3.4.3 AMR Soft Handover Success Ratio 3.4.4 CS64 Soft Handover Success Ratio 3.4.5 PS Soft Handover Success Ratio



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3.2.12 CE Consumption for a NodeB Cell 3.2.13 Hardware Configured CE for a NodeB 3.2.14 Shared Group Configured License CE for a NodeB 3.2.15 Shared Group License CE Consumption for a NodeB 3.2.16 License Group Configured CE for a NodeB 3.2.17 License Group CE Consumption for a NodeB 3.6.4 Average UL BLER for PS Service 3.2.18 RTWP (Received Total Wideband Power) 3.2.19 TCP (Transmitted Carrier Power) 3.2.20 R99 Code Utilization 3.5.1 CS Service Drop Ratio 3.5.10 PS BE Call Drop Ratio 3.5.7 PS Call Drop Ratio (PCH) 3.5.9 PS R99 Call Drop Ratio (PCH) 3.5.12 HSDPA Call Drop Ratio (PCH) 3.5.14 HSUPA Call Drop Ratio (PCH) 3.6.5 HSDPA Throughput 3.6.6 HSUPA Throughput 3.7.3 Number of PS R99 UsersCompared with issue 01 (2010-04-10) of V900R012C01, this issue incorporates thefollowing changes:

Content Description3.2.10 HSDPA Unavailabilityduration

Correct the counter name VS.Hsdpa.Unavail-Time to VS.Cell.HSDPA.UnavailTime

3.7.4 Number of HSDPA Users Modify the KPI name from Mean Number ofHSDPA Users to Number of HSDPA UsersNew counter VS.HSDPA.UE.Max.Cell wasadded in the section Associated Counters

3.7.5 Number of HSUPA Users Modify the KPI name from Mean Number ofHSUPA Users to Number of HSUPA UsersNew counter VS.HSUPA.UE.Max.Cell wasadded in the section Associated Counters

Compared with issue 01 (2010-04-10) of V900R012C01, this issue does not exclude anytopics.



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2 GSM Service KPIAbout This Chapter

The following KPIs are GSM Service KPIs.2.1 CS Accessibility KPIsThis chapter describes the CS accessibility KPIs that mainly indicate the call success rate whenan MS accesses the network. Low accessibility KPIs directly lead to low user satisfaction.2.2 CS CPU Usage KPIThis chapter describes the CS CPU Usage KPI that indicates the mean ratio of the busy time ofthe CPU in a granularity period.2.3 CS Mobility KPIsThis chapter describes the CS Mobility KPIs that indicate the success rate of handovers on themove. In addition, these KPIs indicate the capability of providing continuous services. A lowhandover success rate may lead to a high call drop rate.2.4 CS Receive Quality KPIsThis chapter describes the CS Receive Quality KPIs that indicate the mean receive quality rankon the TCH.2.5 CS Resource Utilization KPIsThis chapter describes the CS Resource Utilization KPIs that are used to monitor the load of hotcells and the network. These KPIs can serve as references for capacity expansion. The trafficvolume KPIs help to obtain the ratio of busy-hour traffic to idle-hour traffic, to evaluate theutilization of system resources, and to adjust charges. The equipment availability KPIs help toknow the running status of equipment, such as the running status of channels. If these KPIs arelow, equipment and transmission may be faulty.2.6 CS Retainability KPIsThis chapter describes the CS Retainability KPIs that indicate the ratio of moving MSs to allMSs, the moving frequency. In addition, these KPIs indicate the capability of providingcontinuous services. A low success rate leads to low user satisfaction.2.7 PS Accessibility KPIsThis chapter describes the PS Accessibility KPIs that indicate whether MSs can easily accesscells. Poor PS Accessibility KPIs directly affect user satisfaction.2.8 PS Data Throughput KPIs

SingleRANKPI Reference 2 GSM Service KPI


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This chapter describes the PS Data Throughput Rate KPIs. They involve the performance factorsassociated with the terminals, the radio access network, and the core network. Now, the mainperformance problem is concerned with the radio access network. Therefore, these KPIs indicatethe end-to-end service data link bearing capability of the GPRS network, which is directly relatedto user satisfaction.2.9 PS delay KPIsThis chapter describes the PS Delay KPIs that indicate the service response speed of the network.Long delay affects user satisfaction.2.10 PS Resource Utilization Rate KPIsThis chapter describes the PS Resource Utilization Rate KPIs that indicate the utilization of thenetwork resource and the busy states of services. Thus, these KPIs can be used to guide networkexpansion.2.11 PS Retainability KPIsThis chapter describes the PS Retainability KPIs that mainly involve the uplink and downlinkTBF call drop rates. These KPIs indicate the capability of providing continuous services by thenetwork and are directly related to user satisfaction. Thus, an increase in call drop rate directlyleads to a decrease in user satisfaction.2.12 PS Transmission Performance KPIsThis chapter describes the PS Transmission Performance KPIs that indicate the quality of radiotransmission links in a cell. If the RLC data block retransmission rate in a cell is high, the qualityof the radio transmission links in the cell is poor. Therefore, take corresponding measures, suchas RF optimization.



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2.1 CS Accessibility KPIsThis chapter describes the CS accessibility KPIs that mainly indicate the call success rate whenan MS accesses the network. Low accessibility KPIs directly lead to low user satisfaction.

2.1.1 Congestion Rate on SDCCH per CELL (Due to Busy)This counter provides the rate of the number of times that all SDCCHs are busy to the totalnumber of requests for the SDCCH. It indicates the SDCCH collisions due to insufficientresources.

Table 2-1 Congestion Rate on SDCCH per CELL (Due to Busy)KPI Name Congestion Rate on SDCCH per CELL (Due to Busy)MeasurementScope

CELL

Formula Congestion Rate on SDCCH per CELL (Due to Busy) = [Failed SDCCHSeizures due to Busy SDCCH] x{100%}/[SDCCH Seizure Requests]RR370 = K3001 x 100%/K3000

AssociatedCounters

None

Notes 1. Unit: %2. This KPI is crucial.

2.1.2 Call Drop Rate on SDCCHThis counter provides the rate of call drops that occur when the SDCCH is occupied.

Table 2-2 Call Drop Rate on SDCCHKPI Name Call Drop Rate on SDCCHMeasurementScope

CELL

Formula Call Drop Rate on SDCCH = [Call Drops on SDCCH] x {100%}/[Successful SDCCH Seizures]ZTR104C = CM30 x 100%/K3003

AssociatedCounters

None



7


2.1.3 Assignment Success RateThis counter provides the rate that the requested TCHs are seized successfully in the assignmentprocedure. It involves the procedure from the BSC's receiving the assignment request sent bythe MSC to the assignment completion.

Table 2-3 Assignment Success RateKPI Name Assignment Success RateMeasurementScope

CELL

Formula Assignment Success Rate = [Successful Assignments] x {100%}/[Assignment Requests]RCA313 = CA313 x 100%/CA310

AssociatedCounters

None


2.1.4 TCH Congestion Rate (Overflow)This counter provides the rate of the number of failed assignments or handovers due to no idleTCHs to the number of TCH seizure requests.

Table 2-4 TCH Congestion Rate (Overflow)KPI Name TCH Congestion Rate (Overflow)MeasurementScope

CELL



8

Formula TCH Congestion Rate (Overflow) = {[Failed TCH Seizures due to BusyTCH (Signaling Channel)]+ [Failed TCH Seizures due to Busy TCH (Traffic Channel)]+ [Failed TCH Seizures in TCH Handovers due to Busy TCH (TrafficChannel)]} x {100%}/{[TCH Seizure Requests (Signaling Channel)]+ [TCH Seizure Requests (Traffic Channel)]+[TCH Seizure Requests in TCH Handovers (Traffic Channel)]}K3041 = (K3021+K3011A+K3011B) x100%/(K3020+K3010A+K3010B)

AssociatedCounters

None


2.1.5 TCH Seizure Success RateThis counter provides the rate that the requested TCHs are seized successfully in the very earlyassignment procedure, assignment procedure, or handover procedure. Assignment Success Rateindicates the TCH seizure condition in the assignment procedure. Comparably, TCH SeizureSuccess Rate indicates the successful seizure of all the TCHs.

Table 2-5 TCH Seizure Success RateKPI Name TCH Seizure Success RateMeasurementScope

CELL

Formula TCH Seizure Success Rate = {[Successful TCH Seizures (SignalingChannel)]+ [Successful TCH Seizures (Traffic Channel)]+ [Successful TCH Seizures in TCH handovers (Traffic Channel)]} x{100%}/{[TCH Seizure Requests (Signaling Channel)]+ [TCH Seizure Requests (Traffic Channel)]+[TCH Seizure Requests in TCH Handovers (Traffic Channel)]}K3043 = (K3023+K3013A+K3013B) x 100%/(K3020+K3010A+K3010B)

AssociatedCounters

None

Notes Unit: %



9

2.1.6 Success Rate of Call EstablishmentThis counter provides the rate of successful calls initiated by the MS from the call setup procedureto the assignment completion procedure.

Table 2-6 Success Rate of Call EstablishmentKPI Name Success Rate of Call EstablishmentMeasurementScope

CELL

Formula Success Rate of Call Establishment = {[Successful Assignments]-{[Assignment Requests (Signaling Channel) (SDCCH)]+[Assignment Requests (Signaling Channel) (TCH)]-[Failed Assignments (Signaling Channel)]+[Assignment Requests (TCH Assigned Repeatedly over A Interface)]-[Failed Assignments (TCH Assigned Repeatedly over A Interface)]}} x{100%}/{[SDCCH Seizures for Speech Service]+[TCHF Seizures for Speech Service]+[TCHH Seizures for Speech Service]}RA333 = {CA313-{A3100K + A3100A - A312S + CA310A-CA312A}}x {100%}/{A3039J + A301F + A301HH}

AssociatedCounters

None

Notes Unit: %

2.1.7 BSS Call Establishment Success RateThis counter provides the rate of successful call setup from call origination to successful callaccess.

Table 2-7 BSS Call Establishment Success RateKPI Name BSS Call Establishment Success RateMeasurementScope

CELL

Formula BSS Call Establishment Success Rate = {[Success Rate of ImmediateAssignments]/{100}}x {[Assignment Success Rate]/{100}}x {1 - ([Call Drop Rate on SDCCH])/{100}}x {100} x 100%RA333A = (RA303G x RCA313)(1-ZTR104C) x 100%



10

AssociatedCounters

RA333:Success Rate of Call Establishment

Notes Unit: %

2.1.8 OVERLOAD Rate of PagingThis counter provides the rate of the number of paging overload times of CS and PS services onthe Abis interface to deliver paging messages.

Table 2-8 OVERLOAD Rate of PagingKPI Name OVERLOAD Rate of PagingMeasurementScope

CELL

Formula OVERLOAD Rate of Paging = {[MSG CCCH LOAD IND (PCH)Messages Sent on Abis Interface (CS Service)]+[MSG CCCH LOAD IND (PCH) Messages Sent on Abis Interface (PSService)]} x {100}/{[Delivered Paging Messages for CS Service]+[Delivered Paging Messages for PS Service]}RL3188 = (L3188C + L3188D) x 100%/(A330 + A331)

AssociatedCounters

None


2.2 CS CPU Usage KPIThis chapter describes the CS CPU Usage KPI that indicates the mean ratio of the busy time ofthe CPU in a granularity period.

2.2.1 Average CPU Usage of the XPUThis counter provides the average CPU usage of the XPU in a measurement period. It indicatesthe load and operating performance of the CPU on the XPU in the measurement period.

Table 2-9 Average CPU Usage of the XPUKPI Name Average CPU Usage of the XPUMeasurementScope

XPU



11

Formula NoneAssociatedCounters

None


2.3 CS Mobility KPIsThis chapter describes the CS Mobility KPIs that indicate the success rate of handovers on themove. In addition, these KPIs indicate the capability of providing continuous services. A lowhandover success rate may lead to a high call drop rate.

2.3.1 Handover Success RateThis counter provides the rate of the total number of successful handovers due to any cause tothe total number of handover requests due to any cause. The purpose of handover is to ensurethe call continuity, improve the speech quality, and reduce the cross interference in the network,thus providing better services for the MSs.

Table 2-10 Handover Success RateKPI Name Handover Success RateMeasurementScope

CELL

Formula Handover Success Rate= {[Number of Successful Outgoing Internal Inter-Cell Handovers]+ [Successful Outgoing External Inter-Cell Handovers]} x {100%}/{[Number of Outgoing Internal Inter-Cell Handover Requests]+ [Outgoing External Inter-Cell Handover Requests]}RH303 = (CH313 + CH333) x 100%/(CH310 + CH330)

AssociatedCounters

RH303A:Success Rate of Radio Handover


2.3.2 Success Rate of Radio HandoverThis counter provides the handover success rate on the Um interface after a handover commandis sent and before the handover is complete. Statistics taken by this item excludes target cellhandover failure due to congestion. Thus, Success Rate of Radio Handover is always greaterthan or equal to Handover Success Rate.



12

Table 2-11 Success Rate of Radio HandoverKPI Name Success Rate of Radio HandoverMeasurementScope

CELL

Formula Success Rate of Radio Handover= {[Number of Successful Outgoing Internal Inter-Cell Handovers]+ [Successful Outgoing External Inter-Cell Handovers]} x {100%}/{[Number of Outgoing Internal Inter-Cell Handover Commands]+ [Outgoing External Inter-Cell Handover Commands]}RH303A = (CH313 + CH333) x 100%/(CH311 + CH331)

AssociatedCounters

RH303:Handover Success Rate

Notes Unit: %

2.3.3 Internal Handover Success Rate per cellThis counter provides the intra-BSC handover success rate, including the internal intra-cellhandovers and internal inter-cell handovers. It indicates intra-BSC handover, and reduces theinfluence of other BSCs.

Table 2-12 Internal Handover Success Rate per cellKPI Name Internal Handover Success Rate per cellMeasurementScope

CELL

Formula Internal Handover Success Rate per cell= {[Successful Internal Intra-Cell Handovers]+ [Number of Successful Incoming Internal Inter-Cell Handovers]} x{100%}/{[Internal Intra-Cell Handover Requests]+ [Number of Incoming Internal Inter-Cell Handover Requests]}RH303B = (CH303 + CH323) x 100%/(CH300 + CH320)

AssociatedCounters

RH303C: Intra-BSC Radio Handover Success Rate

Notes Unit: %



13

2.3.4 Internal Radio Handover Success Rate per cellCompared with Internal Handover Success Rate per cell, this counter focuses on the influenceof the Um interface on handover. It involves the procedures from sending a handover commandto handover completion, and thus reduces failures due to channel congestion.

Table 2-13 Internal Radio Handover Success Rate per cellKPI Name Internal Radio Handover Success Rate per cellMeasurementScope

CELL

Formula Internal Radio Handover Success Rate per cell= {[Successful Internal Intra-Cell Handovers]+ [Number of Successful Incoming Internal Inter-Cell Handovers]} x{100%}/{[Internal Intra-Cell Handover Commands]+ [Number of Incoming Internal Inter-Cell Handover Responses]}RH303C = (CH303 + CH323) x 100%/(CH301 + CH321)

AssociatedCounters

RH303B:Intra-BSC Handover Success Rate

Notes Unit: %

2.3.5 Success Rate of Incoming External Inter-Cell HandoversThis counter provides the success rate of incoming inter-BSC handovers. It indicates the inter-BSC handover interaction.

Table 2-14 Success Rate of Incoming External Inter-Cell HandoversKPI Name Success Rate of Incoming External Inter-Cell HandoversMeasurementScope

CELL

Formula Success Rate of Incoming External Inter-Cell Handovers= [Successful Incoming External Inter-Cell Handovers] x {100%}/[Incoming External Inter-Cell Handover Requests]TH343 = CH343 x 100%/CH340

AssociatedCounters

RH303D: Success Rate of Incoming External Inter-Cell Radio Handovers

Notes Unit: %



14

2.3.6 External Incoming Radio Handover Success Rate per CellThis counter provides the success rate of incoming inter-BSC handovers on the Um interface.It indicates the inter-BSC handover interaction.

Table 2-15 External Incoming Radio Handover Success Rate per CellKPI Name External Incoming Radio Handover Success Rate per CellMeasurementScope

CELL

Formula External Incoming Radio Handover Success Rate per Cell= [Successful Incoming External Inter-Cell Handovers] x {100%}/[Incoming External Inter-Cell Handover Responses]RH303D = CH343 x 100%/CH341

AssociatedCounters

TH343: Success Rate of Incoming External Inter-Cell Handovers

Notes Unit: %

2.3.7 Inter-BSC Outgoing Handover Success RateThis counter provides the success rate of outgoing inter-BSC handovers. It indicates the inter-BSC handover interaction.

Table 2-16 Inter-BSC Outgoing Handover Success RateKPI Name Inter-BSC Outgoing Handover Success RateMeasurementScope

CELL

Formula Success Rate of Outgoing External Inter-Cell Handovers= [Successful Outgoing External Inter-Cell Handovers] x {100%}/[Outgoing External Inter-Cell Handover Requests]TH333 = CH333 x 100%/CH330

AssociatedCounters

RH303E: Success Rate of External Outgoing Cell Radio Handovers

Notes Unit: %

2.3.8 Success Rate of External Outgoing Cell Radio HandoversThis counter provides the success rate of outgoing inter-BSC handovers on the Um interface. Itindicates the inter-BSC handover interaction.



15

Table 2-17 Success Rate of External Outgoing Cell Radio HandoversKPI Name Success Rate of External Outgoing Cell Radio HandoversMeasurementScope

CELL

Formula Success Rate of External Outgoing Cell Radio Handovers= [Successful Outgoing External Inter-Cell Handovers] x {100%}/[Outgoing External Inter-Cell Handover Commands]RH303E = CH333 x 100%/CH331

AssociatedCounters

TH333: Success Rate of Outgoing External Inter-Cell Handovers

Notes Unit: %

2.3.9 Success Rate of Dual-Band Handovers (900/850/810-1800/1900)This counter provides the rate of the number of successful inter-band (900-1800) handovers tothe number of corresponding handover requests.

Table 2-18 Success Rate of Dual-Band Handovers (900/850/810-1800/1900)KPI Name Success Rate of Dual-Band Handovers (900/850/810-1800/1900)MeasurementScope

CELL



16

Formula Success Rate of Dual-Band Handovers (900/850/810-1800/1900)= {[Incoming Internal Inter-Cell Handover Requests(900/850/810-1800/1900)]+ [Incoming External Inter-Cell Handover Requests(900/850/810-1800/1900)]+ [Outgoing External Inter-Cell Handover Requests(900/850/810-1800/1900)]- {[Failed Incoming Internal Inter-Cell Handovers(900/850/810-1800/1900)]+ [Failed Incoming External Inter-Cell Handovers(900/850/810-1800/1900)]+ [Failed Outgoing External Inter-Cell Handovers(900/850/810-1800/1900)]}} x {100%}/{[Incoming Internal Inter-Cell Handover Requests(900/850/810-1800/1900)]+ [Incoming External Inter-Cell Handover Requests(900/850/810-1800/1900)]+ [Outgoing External Inter-Cell Handover Requests(900/850/810-1800/1900)]}RH303F = {(RH3031G + RH3033G + RH3035G) - (RH3031F +RH3033F + RH3035F)} x 100%/(RH3031G + RH3033G + RH3035G)

AssociatedCounters

RH303G: Success Rate of Dual-Band Handovers(1800/1900-900/850/810)

Notes Unit: %

2.3.10 Success Rate of Dual-Band Handovers(1800/1900-900/850/810)

This counter provides the rate of the number of successful inter-band (1800-900) handovers tothe number of corresponding handover requests.

Table 2-19 Success Rate of Dual-Band Handovers (1800/1900-900/850/810)KPI Name Success Rate of Dual-Band Handovers (1800/1900-900/850/810)MeasurementScope

CELL



17

Formula Success Rate of Dual-Band Handovers (1800/1900-900/850/810)= {[Incoming Internal Inter-Cell Handover Requests(1800/1900-900/850/810)]+ [Incoming External Inter-Cell Handover Requests(1800/1900-900/850/810)]+ [Outgoing External Inter-Cell Handover Requests(1800/1900-900/850/810)]- {[Failed Incoming Internal Inter-Cell Handovers(1800/1900-900/850/810)]+ [Failed Incoming External Inter-Cell Handovers(1800/1900-900/850/810)]+ [Failed Outgoing External Inter-Cell Handovers(1800/1900-900/850/810)]}} x {100%}/{[Incoming Internal Inter-Cell Handover Requests(1800/1900-900/850/810)]+ [Incoming External Inter-Cell Handover Requests(1800/1900-900/850/810)]+ [Outgoing External Inter-Cell Handover Requests(1800/1900-900/850/810)]}RH303G = {(RH3032G + RH3034G + RH3036G) - (RH3032F +RH3034F + RH3036F)} x 100%/(RH3032G + RH3034G + RH3036G)

AssociatedCounters

RH303F: Success Rate of Dual-Band Handovers(900/850/810-1800/1900)

Notes Unit: %

2.4 CS Receive Quality KPIsThis chapter describes the CS Receive Quality KPIs that indicate the mean receive quality rankon the TCH.

2.4.1 Rx_QUALITY(UPLINK)This counter provides the ratio of uplink half/full rate in the mean receive quality ranks 0 to 4.

Table 2-20 Rx_QUALITY(UPLINK)KPI Name Rx_QUALITY(UPLINK)MeasurementScope

TRX



18

Formula Rx_QUALITY(UPLINK)={[Number of MRs on Uplink TCHF (Mean Receive Quality Rank 0)]+ [Number of MRs on Uplink TCHF (Mean Receive Quality Rank 1)]+ [Number of MRs on Uplink TCHF (Mean Receive Quality Rank 2)]+ [Number of MRs on Uplink TCHF (Mean Receive Quality Rank 3)]+ [Number of MRs on Uplink TCHF (Mean Receive Quality Rank 4)]+ [Number of MRs on Uplink TCHH (Mean Rank of Receive Quality 0)]+ [Number of MRs on Uplink TCHH (Mean Receive Quality Rank 1)]+ [Number of MRs on Uplink TCHH (Mean Receive Quality Rank 2)]+ [Number of MRs on Uplink TCHH (Mean Receive Quality Rank 3)]+ [Number of MRs on Uplink TCHH (Mean Receive Quality Rank 4)]}x{100%}/{[Number of MRs on Uplink TCHF (Mean Receive Quality Rank 0)]+ [Number of MRs on Uplink TCHF (Mean Receive Quality Rank 1)]+ [Number of MRs on Uplink TCHF (Mean Receive Quality Rank 2)]+ [Number of MRs on Uplink TCHF (Mean Receive Quality Rank 3)]+ [Number of MRs on Uplink TCHF (Mean Receive Quality Rank 4)]+ [Number of MRs on Uplink TCHF (Mean Receive Quality Rank 5)]+ [Number of MRs on Uplink TCHF (Mean Receive Quality Rank 6)]+ [Number of MRs on Uplink TCHF (Mean Receive Quality Rank 7)]+ [Number of MRs on Uplink TCHH (Mean Rank of Receive Quality 0)]+ [Number of MRs on Uplink TCHH (Mean Receive Quality Rank 1)]+ [Number of MRs on Uplink TCHH (Mean Receive Quality Rank 2)]+ [Number of MRs on Uplink TCHH (Mean Receive Quality Rank 3)]+ [Number of MRs on Uplink TCHH (Mean Receive Quality Rank 4)]+ [Number of MRs on Uplink TCHH (Mean Receive Quality Rank 5)]+ [Number of MRs on Uplink TCHH (Mean Receive Quality Rank 6)]+ [Number of MRs on Uplink TCHH (Mean Receive Quality Rank 7)]}(CS410A + CS411A + CS412A + CS413A + CS414A + CS410C +CS411C + CS412C + CS413C + CS414C) x{100%}/(CS410A + CS411A + CS412A + CS413A + CS414A + CS415A +CS416A + CS417A + CS410C + CS411C + CS412C + CS413C + CS414C+ CS415C + CS416C + CS417C)

AssociatedCounters

None

Notes None

2.4.2 Rx_QUALITY(DOWNLINK)This counter provides the ratio of downlink half/full rate in the mean receive quality ranks 0 to4.



19

Table 2-21 Rx_QUALITY(DOWNLINK)KPI Name Rx_QUALITY(DOWNLINK)MeasurementScope

TRX

Formula Rx_QUALITY(DOWNLINK)= {[Number of MRs on Downlink TCHF (Mean Receive Quality Rank 0)]+ [Number of MRs on Downlink TCHF (Mean Receive Quality Rank 1)]+ [Number of MRs on Downlink TCHF (Mean Receive Quality Rank 2)]+ [Number of MRs on Downlink TCHF (Mean Receive Quality Rank 3)]+ [Number of MRs on Downlink TCHF (Mean Receive Quality Rank 4)]+ [Number of MRs on Downlink TCHH (Mean Receive Quality Rank 0)]+ [Number of MRs on Downlink TCHH (Mean Receive Quality Rank 1)]+ [Number of MRs on Downlink TCHH (Mean Receive Quality Rank 2)]+ [Number of MRs on Downlink TCHH (Mean Receive Quality Rank 3)]+ [Number of MRs on Downlink TCHH (Mean Receive Quality Rank 4)]}x{100%}/{[Number of MRs on Downlink TCHF (Mean Receive Quality Rank 0)]+ [Number of MRs on Downlink TCHF (Mean Receive Quality Rank 1)]+ [Number of MRs on Downlink TCHF (Mean Receive Quality Rank 2)]+ [Number of MRs on Downlink TCHF (Mean Receive Quality Rank 3)]+ [Number of MRs on Downlink TCHF (Mean Receive Quality Rank 4)]+ [Number of MRs on Downlink TCHF (Mean Receive Quality Rank 5)]+ [Number of MRs on Downlink TCHF (Mean Receive Quality Rank 6)]+ [Number of MRs on Downlink TCHF (Mean Receive Quality Rank 7)]+ [Number of MRs on Downlink TCHH (Mean Receive Quality Rank 0)]+ [Number of MRs on Downlink TCHH (Mean Receive Quality Rank 1)]+ [Number of MRs on Downlink TCHH (Mean Receive Quality Rank 2)]+ [Number of MRs on Downlink TCHH (Mean Receive Quality Rank 3)]+ [Number of MRs on Downlink TCHH (Mean Receive Quality Rank 4)]+ [Number of MRs on Downlink TCHH (Mean Receive Quality Rank 5)]+ [Number of MRs on Downlink TCHH (Mean Receive Quality Rank 6)]+ [Number of MRs on Downlink TCHH (Mean Receive Quality Rank 7)]}(CS410B + CS411B + CS412B + CS413B + CS414B + CS410D +CS411D + CS412D + CS413D + CS414D) x {100%}/(CS410B + CS411B + CS412B + CS413B + CS414B + CS415B +CS416B + CS417B + CS410D + CS411D + CS412D + CS413D + CS414D+ CS415D + CS416D + CS417D)

AssociatedCounters

None



20

Notes None

2.5 CS Resource Utilization KPIsThis chapter describes the CS Resource Utilization KPIs that are used to monitor the load of hotcells and the network. These KPIs can serve as references for capacity expansion. The trafficvolume KPIs help to obtain the ratio of busy-hour traffic to idle-hour traffic, to evaluate theutilization of system resources, and to adjust charges. The equipment availability KPIs help toknow the running status of equipment, such as the running status of channels. If these KPIs arelow, equipment and transmission may be faulty.

2.5.1 Traffic Volume on SDCCHThis counter provides the ratio of the duration for which the MS occupies the signaling channelto the granularity period. The signaling channels include the SDCCHs and the TCHs used forsignaling channels.

Table 2-22 Traffic Volume on SDCCHKPI Name Traffic Volume on SDCCHMeasurementScope

CELL

Formula Traffic Volume on SDCCH = [Traffic Volume of Signaling Channels(SDCCH)]K3004 = R3550M

AssociatedCounters

None

Notes 1. This KPI is crucial.

2.5.2 Traffic Volume on TCHThis counter provides the frequency of seizing the TCHs, that is, the actual length of activatedTCHs.

Table 2-23 Traffic Volume on TCHKPI Name Traffic Volume on TCHMeasurementScope

CELL



21

Formula Traffic Volume on TCH= [Mean Number of Busy TCHs (TCHF) (900/850/810 band)]+ [Mean Number of Busy TCHs (TCHF) (1800/1900 Band)]+ [Mean Number of Busy TCHs (TCHH) (900/850/810 band)]+ [Mean Number of Busy TCHs (TCHH) (1800/1900 Band)]K3014 = AR3551A + AR3551B + AR3552A + AR3552B

AssociatedCounters

None

Notes 1. This KPI is crucial.

2.5.3 TCHH Traffic VolumeThis counter provides the traffic volume on the TCHs of all the cells under the control of theBSC, excluding the traffic volume in the very early assignment.

Table 2-24 TCHH Traffic VolumeKPI Name TCHH Traffic VolumeMeasurementScope

CELL

Formula TCHH Traffic Volume= [Mean Number of Busy TCHs (TCHH) (900/850/810 band)]+ [Mean Number of Busy TCHs (TCHH) (1800/1900 Band)]K3034 = AR3552A + AR3552B

AssociatedCounters

None

Notes None

2.5.4 TCH AvailabilityThis counter provides the rate of available TCHs to configured TCHs.

Table 2-25 TCH AvailabilityKPI Name TCH AvailabilityMeasurementScope

CELL



22

Formula TCH Availability= {[Mean Number of Available Channels (TCHF) (900/850/810 band)]+ [Mean Number of Available Channels (TCHF) (1800/1900 Band)]+ [Mean Number of Available Channels (TCHH) (900/850/810 band)]+ [Mean Number of Available Channels (TCHH) (1800/1900 Band)]} x{100%}/{[Mean Number of Dynamically Configured Channels (TCHF)(900/850/810 band)]+ [Mean Number of Dynamically Configured Channels (TCHF)(1800/1900 Band)]+ [Mean Number of Dynamically Configured Channels (TCHH)(900/850/810 band)]+ [Mean Number of Dynamically Configured Channels (TCHH)(1800/1900 Band)]}RR307 = (AR3027A + AR3027B + AR3028A + AR3028B) x 100%/(AR3017A + AR3017B + AR3018A + AR3018B)

AssociatedCounters

None

Notes Unit: %

2.5.5 TCH Resource UtilizabilityThis counter provides the rate of the actual traffic volume to the theoretical traffic volume.

Table 2-26 TCH Resource UtilizabilityKPI Name TCH Resource UtilizabilityMeasurementScope

CELL

Formula Actual traffic volume divided by the theoretical capacity (if the theoreticalcapacity exceeds 12000 Erl, take 12000 Erl for calculation)

AssociatedCounters

None

Notes None

2.5.6 TRX UsabilityThis counter provides the rate of available TRXs in a cell to TRXs configured in the cell.



23

Table 2-27 TRX UsabilityKPI Name TRX UsabilityMeasurementScope

CELL

Formula TRX Usability= [Number of available TRXs in a cell] x {100%}/[Number of configured TRXs in a cell]RK3255 = S3656 x 100%/S3655

AssociatedCounters

None

Notes Unit: %

2.5.7 SDCCH AvailabilityThis counter provides the rate of available SDCCHs to configured SDCCHs.

Table 2-28 SDCCH AvailabilityKPI Name SDCCH AvailabilityMeasurementScope

CELL

Formula SDCCH Availability= {[Mean Number of Available Channels (SDCCH) (900/850/810 band)]+ [Mean Number of Available Channels (SDCCH) (1800/1900 Band)]} x{100%}/{[Mean Number of Dynamically Configured Channels (SDCCH)(900/850/810 band)]+ [Mean Number of Dynamically Configured Channels (SDCCH)(1800/1900 Band)]}RR300 = (AR3020A + AR3020B) x 100%/(AR3010A + AR3010B)

AssociatedCounters

None

Notes Unit: %

2.6 CS Retainability KPIsThis chapter describes the CS Retainability KPIs that indicate the ratio of moving MSs to allMSs, the moving frequency. In addition, these KPIs indicate the capability of providingcontinuous services. A low success rate leads to low user satisfaction.



24

2.6.1 Call Drop Rate on TCH per Cell (Including Handover)This counter provides the rate of TCH call drops to successful TCH seizures after the BSCassigns the TCH to an MS (including handovers) in a cell.

Table 2-29 Call Drop Rate on TCH per Cell (Including Handover)KPI Name Call Drop Rate on TCH per Cell (Including Handover)MeasurementScope

CELL

Formula Call Drop Rate on TCH per Cell (Including Handover) = [Call Drops onTraffic Channel] x {100%}/{[Successful TCH Seizures (Signaling Channel)]+ [Successful TCH Seizures (Traffic Channel)]+ [Successful TCH Seizures in TCH handovers (Traffic Channel)]}ZTR304 = CM33 x 100%/(K3023+K3013A+K3013B)

AssociatedCounters

ZTR304A:Call Drop Rate on TCH per Cell (Excluding Handover)


2.6.2 Call Drop Rate on TCH per Cell (Excluding Handover)This counter provides the rate of TCH call drops to successful TCH seizures after the BSCassigns the TCH to an MS (excluding handovers) in a BSC.

Table 2-30 Call Drop Rate on TCH per Cell (Excluding Handover)KPI Name Call Drop Rate on TCH per Cell (Excluding Handover)MeasurementScope

CELL



25

Formula Call Drop Rate on TCH per Cell (Excluding Handover)= [Call Drops on Traffic Channel] x {100%}/{[Successful TCH Seizures (Traffic Channel)]+[Number of Incoming Internal Inter-Cell Handover Requests (TCH)]-[Number of Failed Incoming Internal Inter-Cell Handovers(TCH)]+[Number of Incoming External Inter-Cell Handover Requests(TCH)]-[Number of Failed Incoming External Inter-Cell Handovers(TCH)]- ([Number of Outgoing Internal Inter-Cell Handover Requests(TCH)]-[Number of Failed Outgoing Internal Inter-Cell Handovers(TCH)]+[Number of Outgoing External Inter-Cell Handover Requests(TCH)]-[Number of Failed Outgoing External Inter-Cell Handovers(TCH)])}ZTR304A = CM33 x 100%/{K3013A + CH3209A - CH3229A +CH3409A - CH3429A - (CH3109A - CH3129A + CH3309A - CH3329A)}When the number of successful outgoing inter-RAT handovers reaches theupper limit, the value of this counter will be negative or even greater than100% if the following formula is used:Call drop rate on TCH per cell (excluding handover) = X * 100/YWhere,X = [Call Drops on Traffic Channel];Y = {([Successful TCH Seizures (Traffic Channel)]+[Number ofIncoming Internal Inter-Cell Handover Requests (TCH)]-[Number ofUnsuccessful Incoming Internal Inter-Cell Handovers(TCH)]+[Numberof Incoming External Inter-Cell Handover Requests(TCH)]-[Number ofUnsuccessful Incoming External Inter-Cell Handovers(TCH)]-([Numberof Outgoing Internal Inter-Cell Handover Requests(TCH)]-[Number ofUnsuccessful Outgoing Internal Inter-Cell Handovers(TCH)]+[OutgoingExternal Inter-Cell Handover Requests(TCH)]-[Failed Outgoing ExternalInter-Cell Handovers(TCH)]))};Therefore, it is recommended that the following formula be used wheninter-RAT handovers are detected:Call drop rate on TCH per cell (excluding handover) = (X + Number oftimes the outgoing inter-RAT inter-cell handover timer expires) * {100}/(Y + Number of successful incoming inter-RAT inter-cell handovers -Number of successful outgoing inter-RAT inter-cell handovers)Notes:(1) If an MS is handed over between a GSM cell and a UMTS cell,Number of times the outgoing inter-RAT inter-cell handover timer expires= [H352C: Failed Outgoing Inter-RAT Inter-Cell Handovers (T8Expired)];Number of successful incoming inter-RAT inter-cell handovers ={[H3609: Incoming Inter-RAT Inter-Cell Handover Requests (TCH)] -([H3627: Failed Incoming Inter-RAT Inter-Cell Handovers (TCHF)] +[H3628: Failed Incoming Inter-RAT Inter-Cell Handovers (TCHH)])};Number of successful outgoing inter-RAT inter-cell handovers ={([H3507: Outgoing Inter-RAT Inter-Cell Handover Requests (TCHF)] +



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[H3508: Outgoing Inter-RAT Inter-Cell Handover Requests (TCHH)]) -([H3527: Failed Outgoing Inter-RAT Inter-Cell Handovers (TCHF)] +[H3528: Failed Outgoing Inter-RAT Inter-Cell Handovers (TCHH)])};(2) If an MS is handed over between a GSM cell and a TDD cell,Number of times the outgoing inter-RAT inter-cell handover timer expires= [H352C1: Failed Outgoing Inter-RAT Inter-Cell Handovers (T8Expired) (TDD)];Number of successful incoming inter-RAT inter-cell handovers ={[H36091: Incoming Inter-RAT Inter-Cell Handover Requests (TCH)(TDD)] - ([H36271: Failed Incoming Inter-RAT Inter-Cell Handovers(TCHF) (TDD)] + [H36281: Failed Incoming Inter-RAT Inter-CellHandovers (TCHH) (TDD)])};Number of successful outgoing inter-RAT inter-cell handovers ={([H35071: Outgoing Inter-RAT Inter-Cell Handover Requests (TCHF)(TDD)] + [H35081: Outgoing Inter-RAT Inter-Cell Handover Requests(TCHH) (TDD)]) - ([H35171: Outgoing Inter-RAT Inter-Cell HandoverCommands (TCHF) (TDD)] + [H35181: Outgoing Inter-RAT Inter-CellHandover Commands (TCHH) (TDD)])};

AssociatedCounters

ZTR304:Call Drop Rate on TCH per Cell (Including Handover)


2.6.3 Traffic Call Drop Ratio per cellThis counter provides the ratio of traffic volume to call drops. It indicates the average intervalat which a call drop occurs in a cell.

Table 2-31 Traffic Call Drop Ratio per cellKPI Name Traffic Call Drop Ratio per cellMeasurementScope

CELL

Formula Traffic Call Drop Ratio per cell = [Traffic Volume on TCHs] x {60} x100%/[Call Drops on Traffic Channel]ZTR308 = 60 x K3014 x 100%/CM33

AssociatedCounters

ZTR304A:Call Drop Rate on TCH per Cell (Excluding Handover)




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2.6.4 Radio Drop Rate of TCHThis counter provides the rate of call drops due to the Um interface to total successful TCHseizures.

Table 2-32 Radio Drop Rate of TCHKPI Name Radio Drop Rate of TCHMeasurementScope

CELL

Formula Radio Drop Rate of TCH = {[Call Drops on Radio Interface in Stable State(Traffic Channel)]+ [Call Drops on Radio Interface in Stable State (Signaling Channel)(TCH)]} x {100%} /{[Successful TCH Seizures (Signaling Channel)]+ [Successful TCH Seizures (Traffic Channel)]+ [Successful TCH Seizures in TCH handovers (Traffic Channel)]}RM333 = (CM330 + CM3606) x 100%/(K3023+K3013A+K3013B)

AssociatedCounters

ZTR304:Call Drop Rate on TCH per cell (Including Handover)

Notes Unit: %

2.6.5 Handover Drop Rate of TCHThis counter provides the rate of call drops due to handover failure and failure to return to theoriginal TCH during the handover to the total successful TCH seizures.

Table 2-33 Handover Drop Rate of TCHKPI Name Handover Drop Rate of TCHMeasurementScope

CELL

Formula Handover Drop Rate of TCH = {[Call Drops on Signal Channel (TCH)]+ [Call Drops in TCH Handovers (Traffic Channel)]} x {100%}/{[Successful TCH Seizures (Signaling Channel)]+ [Successful TCH Seizures (Traffic Channel)]+ [Successful TCH Seizures in TCH handovers (Traffic Channel)]}RH333 = (RH3331+K3012B) x 100%/(K3023+K3013A+K3013B)

AssociatedCounters

None

Notes Unit: %



28

2.6.6 Call Complete Establishment Success RateThis counter provides the rate of call complete setup from call origination to successful speechdisconnection.

Table 2-34 Call Complete Establishment Success RateKPI Name Call Complete Establishment Success RateMeasurementScope

CELL

Formula Call Complete Establishment Success Rate = [BSS Call EstablishmentSuccess Rate] x {1 - [Call Drop Rate on TCH per Cell (ExcludingHandover)] x 100%RA333B = RA333A x (1-ZTR304A) x 100%

AssociatedCounters

None


2.7 PS Accessibility KPIsThis chapter describes the PS Accessibility KPIs that indicate whether MSs can easily accesscells. Poor PS Accessibility KPIs directly affect user satisfaction.

2.7.1 Successful Uplink Assignment RateThis counter provides the uplink assignment success rate during uplink assignment procedure.

Table 2-35 Successful Uplink Assignment RateKPI Name Successful Uplink Assignment RateMeasurementScope

CELL

Formula Successful Uplink Assignment Rate= [Number of Successful Uplink Assignments] x {100%}/[Number of Uplink Assignments]A9513 = A9502 x 100%/A9501

AssociatedCounters

None




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2.7.2 Successful Downlink Assignment RateThis counter provides the downlink assignment success rate during downlink assignmentprocedure.

Table 2-36 Successful Downlink Assignment RateKPI Name Successful Downlink Assignment RateMeasurementScope

CELL

Formula Successful Downlink Assignment Rate= [Number of Successful Downlink Assignments] x {100%}/[Number of Downlink Assignments]A9514 = A9508 x 100% /A9507

AssociatedCounters

None


2.7.3 Uplink TBF Establishment Success RateThis counter provides the uplink TBF establishment success rate during uplink TBFestablishment procedure. The value of this counter is impacted by the bad radio environmentand insufficient resources.

Table 2-37 Uplink TBF Establishment Success RateKPI Name Uplink TBF Establishment Success RateMeasurementScope

CELL

Formula Uplink TBF Establishment Success Rate={[Number of Successful Uplink GPRS TBF Establishments]+[Number of Successful Uplink EGPRS TBF Establishments]} x {100%}/{[Number of Uplink GPRS TBF Establishment Attempts]+[Number of Uplink EGPRS TBF Establishment Attempts]}(A9002 + A9202) x 100%/(A9001 + A9201)

AssociatedCounters

None




30

2.7.4 Downlink TBF Establishment Success RateThis counter provides the downlink TBF establishment success rate during downlink TBFestablishment procedure. The value of this counter is impacted by the bad radio environmentand insufficient resources.

Table 2-38 Downlink TBF Establishment Success RateKPI Name Downlink TBF Establishment Success RateMeasurementScope

CELL

Formula Downlink TBF Establishment Success Rate={[Number of Successful Downlink GPRS TBF Establishments]+[Number of Successful Downlink EGPRS TBF Establishments]} x{100%}/{[Number of Downlink GPRS TBF Establishment Attempts]+[Number of Downlink EGPRS TBF Establishment Attempts]}(A9102 + A9302) x 100%/(A9101 + A9301)

AssociatedCounters

None


2.7.5 Uplink EGPRS TBF Establishment Success RateThis counter provides the rate of successful uplink EGPRS TBF establishments during uplinkEGPRS TBF establishment procedure. The value of this counter is impacted by the bad radioenvironment and insufficient resources.

Table 2-39 Uplink EGPRS TBF Establishment Success RateKPI Name Uplink EGPRS TBF Establishment Success RateMeasurementScope

CELL

Formula Uplink EGPRS TBF Establishment Success Rate= [Number of Successful Uplink EGPRS TBF Establishments] x {100%}/[Number of Uplink EGPRS TBF Establishment Attempts]A9202 x 100%/A9201

AssociatedCounters

None



31


2.7.6 Downlink EGPRS TBF Establishment Success RateThis counter provides the rate of successful downlink EGPRS TBF establishments duringdownlink EGPRS TBF establishment procedure. The value of this counter is impacted by thebad radio environment and insufficient resources.

Table 2-40 Downlink EGPRS TBF Establishment Success RateKPI Name Downlink EGPRS TBF Establishment Success RateMeasurementScope

CELL

Formula Downlink EGPRS TBF Establishment Success Rate= [Number of Successful Downlink EGPRS TBF Establishments] x{100%}/[Number of Downlink EGPRS TBF Establishment Attempts]A9302 x 100%/A9301

AssociatedCounters

None


2.7.7 Uplink TBF Congestion RateThis counter indicates the rate of failed uplink TBF establishments due to n

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