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GBSS16.0&RAN16.0

KPI Reference

Issue 01

Date 2014-04-29

HUAWEI TECHNOLOGIES CO., LTD.


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Copyright Huawei Technologies Co., Ltd. 2014. All rights reserved.

No part of this document may be reproduced or transmitted in any form or by any means without prior written

consent 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.

Notice

The purchased products, services and features are stipulated by the contract made between Huawei and the

customer. All or part of the products, services and features described in this document may not be within the

purchase 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 representations

of any kind, either express or implied.

The information in this document is subject to change without notice. Every effort has been made in the

preparation of this document to ensure accuracy of the contents, but all statements, information, and

recommendations in this document do not constitute a warranty of any kind, express or implied.

Huawei Technologies Co., Ltd.

Address: Huawei Industrial Base

Bantian, Longgang

Shenzhen 518129

People's Republic of China

Website: http://www.huawei.com

Email: [email protected]

Issue 01 (2014-04-29) Huawei Proprietary and Confidential

Copyright Huawei Technologies Co., Ltd.

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About This Document

Purpose

The purpose of this document is to specify the GBSS&RAN KPI definition as well as counters

used to calculate the KPI. The original KPI definition comes from the experiences of commercial

network management and radio network optimization. The KPI definition shall be updatedaccording to the requirement from customers.

Version

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

Product Name Product Version

BSC6910 V100R016C00

BSC6900 V900R016C00

BTS3900 V100R009C00

The mapping single-mode base station

versions are:

l GBTS: V100R016C00

l eGBTS: V100R016C00

l NodeB: V200R016C00

BTS3900A

BTS3900L

BTS3900AL

DBS3900

BTS3900C V100R009C00

The mapping single-mode base station

version is:

NodeB: V200R016C00

BTS3812AE NodeB: V100R016C00

BTS3812A

BTS3812E

DBS3800

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Intended Audience

This document is intended for:

l

Network plannersl Field engineers

l System engineers

Organization

1 Changes in the GBSS&RAN KPI Reference

This chapter describes the changes made in the GBSS&RAN KPI Reference.

2 GSM Service KPI

The following KPIs are GSM Service KPIs.

3 UMTS Service KPI

The following KPIs are UMTS Service KPIs.

Conventions

Symbol Conventions

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

Symbol Description

Indicates an imminently hazardous situation which, if not

avoided, will result in death or serious injury.

Indicates a potentially hazardous situation which, if not

avoided, could result in death or serious injury.


avoided, may result in minor or moderate injury.


avoided, could result in equipment damage, data loss,

performance deterioration, or unanticipated results.

NOTICE is used to address practices not related to personal

injury.

Calls attention to important information, best practices and

tips.

NOTE is used to address information not related to personal

injury, equipment damage, and environment deterioration.

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General Conventions

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

Convention Description

Times 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 Conventions

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


Boldface 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 all

items can be selected.

[ x | y | ... ]* Optional items are grouped in brackets and separated by

vertical bars. Several items or no item can be selected.

GUI Conventions

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


Boldface Buttons, menus, parameters, tabs, window, and dialog titles

are in boldface. For example, click OK.

> Multi-level menus are in boldfaceand separated by the ">"

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

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Keyboard Operations

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

Format Description

Key Press the key. For example, press Enterand press Tab.

Key 1+Key 2 Press the keys concurrently. For example, pressing Ctrl+Alt

+Ameans the three keys should be pressed concurrently.

Key 1, Key 2 Press the keys in turn. For example, pressing Alt, Ameans

the two keys should be pressed in turn.

Mouse Operations

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

Action Description

Click 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.....................................................................................................................ii

1 Changes in the GBSS&RAN KPI Reference............................................................................1

2 GSM Service KPI...........................................................................................................................3

2.1 CS Accessibility KPIs....................................................................................................................................................5

2.1.1 Immediate Assignment Success Rate..........................................................................................................................5

2.1.2 Congestion Rate on SDCCH per Cell (Due to Busy)..................................................................................................5

2.1.3 Call Drop Rate on SDCCH..........................................................................................................................................6

2.1.4 Assignment Success Rate............................................................................................................................................6

2.1.5 TCH Congestion Rate (Overflow)...............................................................................................................................7

2.1.6 TCH Seizure Success Rate..........................................................................................................................................7

2.1.7 Call Establishment Success Rate.................................................................................................................................8

2.1.8 BSS Call Establishment Success Rate.........................................................................................................................9

2.1.9 Paging Overload Rate..................................................................................................................................................9

2.2 CS CPU Usage KPI......................................................................................................................................................10

2.2.1 AverageCPU Usage of the XPU(Only for BSC6900)..............................................................................................10

2.2.2 AverageCPU Usage of the CPU(Only for BSC6910)..............................................................................................10

2.3 CS Mobility KPIs.........................................................................................................................................................11

2.3.1 Handover Success Rate.............................................................................................................................................11

2.3.2 Um-Interface Handover Success Rate.......................................................................................................................11

2.3.3 Intra-BSC Handover Success Rate............................................................................................................................12

2.3.4 Um-Interface Intra-BSC Handover Success Rate......................................................................................................12

2.3.5 Incoming Inter-BSC Handover Success Rate............................................................................................................132.3.6 Um-Interface Incoming Inter-BSC Handover Success Rate.....................................................................................13

2.3.7 Outgoing Inter-BSC Handover Success Rate............................................................................................................14

2.3.8 Um-Interface Outgoing Inter-BSC Handover Success Rate.....................................................................................14

2.3.9 Success Rate of Dual-Band Handovers (900/850/810-1800/1900)...........................................................................15

2.3.10 Success Rate of Dual-Band Handovers (1800/1900-900/850/810).........................................................................16

2.4 CS Receive Quality KPIs.............................................................................................................................................16

2.4.1 Rx_QUALITY(UPLINK).........................................................................................................................................17

2.4.2 Rx_QUALITY(DOWNLINK)..................................................................................................................................19

2.5 CS Resource Usage KPIs.............................................................................................................................................21

2.5.1 Traffic Volume on SDCCH.......................................................................................................................................21

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2.5.2 Traffic Volume on TCH............................................................................................................................................22

2.5.3 TCHH Traffic Volume..............................................................................................................................................22

2.5.4 TCH Availability.......................................................................................................................................................22

2.5.5 TCH Resource Usage................................................................................................................................................23

2.5.6 TRX Usage................................................................................................................................................................24

2.5.7 SDCCHAvailability..................................................................................................................................................24

2.6 CS Retainability KPIs...................................................................................................................................................25

2.6.1 Call Drop Rate on TCH per Cell (Including Handover)............................................................................................25

2.6.2 Call Drop Rate on TCH per Cell (Excluding Handover)..................................... ............................................... ......26

2.6.3 Traffic Call Drop Rate per Cell.................................................................................................................................29

2.6.4 Radio Drop Rate of TCH...........................................................................................................................................29

2.6.5 Handover Drop Rate of TCH.....................................................................................................................................30

2.6.6 Call Complete Establishment Success Rate..............................................................................................................30

2.7 PS Accessibility KPIs...................................................................................................................................................31

2.7.1 Uplink Assignment Success Rate..............................................................................................................................31

2.7.2 Downlink Assignment Success Rate.........................................................................................................................31

2.7.3 Uplink TBF Establishment Success Rate..................................................................................................................32

2.7.4 Downlink TBF Establishment Success Rate.............................................................................................................32

2.7.5 Uplink EGPRS TBF Establishment Success Rate.....................................................................................................33

2.7.6 Downlink EGPRS TBF Establishment Success Rate................................................................................................34

2.7.7 Uplink TBF Congestion Rate....................................................................................................................................34

2.7.8 Downlink TBF Congestion Rate...............................................................................................................................35

2.7.9 Uplink EGPRS TBF Congestion Rate.......................................................................................................................35

2.7.10 Downlink EGPRS TBF Congestion Rate................................................................................................................36

2.8 PS Data Throughput KPIs............................................................................................................................................36

2.8.1 Upload Data Throughput (kbit/s)..............................................................................................................................36

2.8.2 Download Data Throughput (kbit/s)..........................................................................................................................37

2.9 PS Delay KPIs..............................................................................................................................................................37

2.9.1 Ping Delay (ms).........................................................................................................................................................37

2.9.2 Mean Delay of PDP Activation (ms).........................................................................................................................38

2.9.3 Mean Delay of Attach (ms).......................................................................................................................................38

2.9.4 Service Interruption Delay for Cell Reselection (ms)...............................................................................................39

2.10 PS Resource Usage KPIs............................................................................................................................................39

2.10.1 UplinkPDTCH/PACCH Usage...............................................................................................................................40

2.10.2 Downlink PDTCH/PACCH Usage..........................................................................................................................40

2.10.3 PDCH Occupation Rate...........................................................................................................................................40

2.10.4 Proportion of Dynamic PDCHs Reclaimed by BSC...............................................................................................41

2.11 PS Retainability KPIs.................................................................................................................................................41

2.11.1 UplinkTBF Drop Rate............................................................................................................................................41

2.11.2 Downlink TBF Drop Rate.......................................................................................................................................42

2.11.3 UplinkEGPRS TBF Drop Rate...............................................................................................................................43

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2.11.4 Downlink EGPRS TBF Drop Rate..........................................................................................................................43

2.12 PS Transmission Performance KPIs...........................................................................................................................44

2.12.1 Retransmission Rate of Uplink GPRS RLC Data Blocks.......................................................................................44

2.12.2 Retransmission Rate of Downlink GPRS RLC Data Blocks..................................................................................44

2.12.3 Retransmission Rate of Uplink EGPRS RLC Data Blocks.....................................................................................45

2.12.4 Retransmission Rate of Downlink EGPRS RLC Data Blocks................................................................................46

2.12.5 Rate ofUplink GPRS RLC Coding Scheme with CS3/CS4...................................................................................47

2.12.6 Rate ofDownlink GPRS RLC Coding Scheme with CS3/CS4..............................................................................47

2.12.7 Rate ofUplink EGPRS RLC Coding Scheme with MCS7/MCS8/MCS9..............................................................48

2.12.8 Rate ofDownlink EGPRS RLC Coding Scheme with MCS7/MCS8/MCS9.........................................................49

2.12.9 Average Throughput of Uplink GPRS RLC per PDCH (kbit/s).............................................................................50

2.12.10 Average Throughput of Downlink GPRS RLC per PDCH (kbit/s)......................................................................50

2.12.11 Average Throughput of Uplink EGPRS RLC per PDCH (kbit/s).........................................................................51

2.12.12 Average Throughput of Downlink EGPRS RLC per PDCH (kbit/s)....................................................................52

2.12.13 Average Throughput of Uplink GPRS RLC per Cell (kbit/s)...............................................................................54

2.12.14 Average Throughput of Downlink GPRS RLC per Cell (kbit/s)..........................................................................54

2.12.15 Average Throughput of Uplink EGPRS RLC per Cell (kbit/s).............................................................................55

2.12.16 Average Throughput of Downlink EGPRS RLC per Cell (kbit/s)........................................................................56

2.12.17 Average Throughput of Uplink GPRS LLC per User (kbit/s)...............................................................................57

2.12.18 Average Throughput of Downlink GPRS LLC per User (kbit/s)..........................................................................58

2.12.19 Average Throughput of Uplink EGPRS LLC per User (kbit/s)............................................................................58

2.12.20 Average Throughput of Downlink EGPRS LLC per User (kbit/s).......................................................................59

3 UMTS Service KPI......................................................................................................................60

3.1 Accessibility.................................................................................................................................................................61

3.1.1 IU Paging Success Ratio............................................................................................................................................61

3.1.2 RRC Setup Success Ratio..........................................................................................................................................61

3.1.3 Radio Access Success Ratio......................................................................................................................................65

3.1.4 PS Radio Access Success Ratio.................................................................................................................................66

3.1.5 CS Radio Access Success Ratio................................................................................................................................67

3.1.6 AMR RAB Setup Success Ratio...............................................................................................................................68

3.1.7 VP RABSetup Success Ratio...................................................................................................................................69

3.1.8 CS RABSetup Success Ratio....................................................................................................................................70

3.1.9 CS+PS Combined Service RAB Setup Success Rate................................................................................................71

3.1.10 PS+PSCombined Service RAB Setup Success Rate..............................................................................................72

3.1.11 PS RAB Setup Success Ratio..................................................................................................................................72

3.1.12 HSDPA RAB Setup Success Ratio.........................................................................................................................74

3.1.13 HSUPA RAB Setup Success Ratio.........................................................................................................................74

3.1.14 PS E-FACH RAB Setup Success Ratio...................................................................................................................75

3.1.15 CS over HSPA RAB Setup Success Ratio..............................................................................................................76

3.1.16 HSDPA 64QAM RAB Setup Success Ratio...........................................................................................................76

3.1.17 HSDPA MIMO RAB Setup Success Ratio.............................................................................................................77

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3.1.18 HSDPA DC RAB Setup Success Ratio...................................................................................................................78

3.1.19 HSDPA MIMO64QAM RAB Setup Success Ratio................................................................................................78

3.1.20 PTM Channel Setup Success Ratio.........................................................................................................................79

3.1.21 PTP Channel Setup Success Ratio...........................................................................................................................80

3.1.22 RRC Congestion Ratio............................................................................................................................................80

3.1.23 CS RAB Congestion Ratio......................................................................................................................................81

3.1.24 PS RAB Congestion Ratio.......................................................................................................................................82

3.1.25 PS R99RAB Setup Success Rate............................................................................................................................83

3.1.26 WB AMR RAB Setup Success Rate.......................................................................................................................84

3.1.27 Success Ratio of Cell Updates Initiated by CS Service of PCH UEs......................................................................84

3.1.28 Success Ratio of Cell Updates Initiated by New PS Service of PCH UEs.............................................................85

3.1.29 CS RAB Setup Success Ratio of PCH UEs.............................................................................................................87

3.1.30 New PS RAB Setup Success Ratio of PCH UEs.....................................................................................................88

3.2 Availability...................................................................................................................................................................88

3.2.1 Worst Cell Ratio........................................................................................................................................................89

3.2.2 Paging Congestion Ratio...........................................................................................................................................89

3.2.3 Call Admission Refused Ratio..................................................................................................................................90

3.2.4 Congested Cell Ratio.................................................................................................................................................91

3.2.5 Radio Network Unavailability Ratio.........................................................................................................................92

3.2.6 AverageCPU Load....................................................................................................................................................92

3.2.7 Iub PortAvailable Bandwidth Utilizing Ratio (UL).................................................................................................93

3.2.8 Iub PortAvailable Bandwidth Utilizing Ratio (DL).................................................................................................94

3.2.9 Cell Unavailability duration......................................................................................................................................95

3.2.10 HSDPA Unavailability duration..............................................................................................................................96

3.2.11 HSUPA Unavailability duration..............................................................................................................................96

3.2.12 CE Consumption for a NodeB Cell.........................................................................................................................96

3.2.13 Hardware Configured CE for a NodeB...................................................................................................................97

3.2.14 SharedGroup Configured License CE for a NodeB...............................................................................................97

3.2.15 SharedGroup License CE Consumption for a NodeB............................................................................................98

3.2.16 License Group Configured CE for a NodeB...........................................................................................................98

3.2.17 License Group CE Consumption for a NodeB........................................................................................................99

3.2.18 RTWP(Received Total Wideband Power)..............................................................................................................99

3.2.19 TCP (Transmitted Carrier Power).........................................................................................................................100

3.2.20 R99 Code Utilization.............................................................................................................................................101

3.2.21 Number of Codes Used by HS-PDSCHs...............................................................................................................101

3.2.22 HSDPA Efficiency................................................................................................................................................102

3.3 Coverage.....................................................................................................................................................................103

3.3.1 UL Interference Cell Ratio......................................................................................................................................103

3.3.2 Soft Handover Overhead.........................................................................................................................................103

3.4 Mobility......................................................................................................................................................................106

3.4.1 Soft Handover Success Ratio..................................................................................................................................106

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3.4.2 Softer Handover Success Ratio...............................................................................................................................106

3.4.3 AMR Soft Handover Success Ratio........................................................................................................................107

3.4.4 CS64 Soft Handover Success Ratio.........................................................................................................................108

3.4.5 PS Soft Handover Success Ratio.............................................................................................................................108

3.4.6 Intra-frequency Hard Handover Success Ratio.......................................................................................................109

3.4.7 Inter-frequency Hard Handover Success Ratio.......................................................................................................110

3.4.8 Service Cell Change Success Ratio with SHO (H2H)............................................................................................111

3.4.9 H2H Intra-Frequency Hard Handover Success Ratio..............................................................................................111

3.4.10 H2H Inter-Frequency Hard Handover Success Ratio............................................................................................113

3.4.11 H2D Intra-Frequency Hard Handover Success Ratio............................................................................................114

3.4.12 H2D Inter-Frequency Hard Handover Success Ratio............................................................................................114

3.4.13 E2D Intra-Frequency Hard Handover Success Ratio............................................................................................115

3.4.14 H2D Channel Switch Success Ratio......................................................................................................................116

3.4.15 D2H Channel Switch Success Ratio......................................................................................................................117

3.4.16 CS W2G Inter-RAT Handover Out Success Ratio................................................................................................118

3.4.17 PS W2G Inter-RAT Handover Out Success Ratio................................................................................................118

3.4.18 PS G2W Inter-RAT Handover In Success Ratio...................................................................................................119

3.4.19 HSDPA W2G Inter-RAT Handover Out Success Ratio.......................................................................................120

3.4.20 SRNC Relocation Success Ratio...........................................................................................................................121

3.4.21 TRNC Relocation Success Ratio...........................................................................................................................122

3.4.22 E-DCHSoft Handover Success Ratio...................................................................................................................122

3.4.23 E-DCHCell Change Success Ratio with SHO......................................................................................................123

3.4.24 E-DCHCell Change Success Ratio with Inter-HHO............................................................................................124

3.4.25 E2D Channel Switch Success Ratio......................................................................................................................125

3.4.26 D2E Channel Switch Success Ratio......................................................................................................................126

3.4.27 E2D Handover Success Ratio with Inter HHO.....................................................................................................127

3.4.28 HSUPA W2G Inter-RAT Handover Out Success Ratio.......................................................................................128

3.4.29 MBMSService Mode Switch Success Ratio........................................................................................................129

3.4.30 CS Inter-Frequency Hard Handover Success Rate................................................................................................129

3.4.31 PS Inter-Frequency Hard Handover Success Rate................................................................................................130

3.5 Retainability................................................................................................................................................................130

3.5.1 CS Service Drop Ratio............................................................................................................................................130

3.5.2 CS Call Drop Rate in CS+PS Combined Services..................................................................................................131

3.5.3 PS Call Drop Rate in CS+PS Combined Services...................................................................................................132

3.5.4 AMR Call Drop Ratio..............................................................................................................................................133

3.5.5 WB AMR Call Drop Rate.......................................................................................................................................134

3.5.6 VP Call Drop Ratio..................................................................................................................................................134

3.5.7 AMR Traffic Drop Ratio.........................................................................................................................................135

3.5.8 VP Traffic Drop Ratio.............................................................................................................................................137

3.5.9 PS Call Drop Ratio..................................................................................................................................................137

3.5.10 PS Call Drop Ratio (PCH).....................................................................................................................................138

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3.5.11 PS Call Drop Ratio (PCH & Combined Service)..................................................................................................141

3.5.12 PS R99 Call Drop Ratio.........................................................................................................................................143

3.5.13 PS R99 Call Drop Ratio (PCH).............................................................................................................................144

3.5.14 PS BE Call Drop Ratio..........................................................................................................................................145

3.5.15 HSDPA Call Drop Ratio........................................................................................................................................146

3.5.16 HSDPA Call Drop Ratio (PCH)............................................................................................................................147

3.5.17 HSUPA Call Drop Ratio........................................................................................................................................149

3.5.18 HSUPA Call Drop Ratio (PCH)............................................................................................................................150

3.5.19 MBMSService PTP drop Ratio............................................................................................................................151

3.5.20 DC-HSDPA Call Drop Ratio.................................................................................................................................151

3.5.21 HSDPA 64QAM Call Drop Ratio.........................................................................................................................153

3.5.22 HSDPA MIMO Call Drop Ratio...........................................................................................................................154

3.5.23 HSDPA MIMO+64QAM Call Drop Ratio............................................................................................................155

3.6 Service Integrity.........................................................................................................................................................156

3.6.1 AverageUL Throughput for PS R99 Service..........................................................................................................156

3.6.2 AverageDL Throughput for PS R99 Service..........................................................................................................158

3.6.3 AverageUL BLER for CS Service..........................................................................................................................160

3.6.4 AverageUL BLER for PS Service..........................................................................................................................160

3.6.5 HSDPAThroughput................................................................................................................................................161

3.6.6 HSUPAThroughput................................................................................................................................................163

3.6.7 PS UL Throughput of RNC.....................................................................................................................................164

3.6.8 PS DL Throughput of RNC.....................................................................................................................................164

3.6.9 MBMS Service Throughput....................................................................................................................................165

3.7 Traffic.........................................................................................................................................................................166

3.7.1 CS Equivalent Erlang of RNC.................................................................................................................................166

3.7.2 Numberof CS Users................................................................................................................................................167

3.7.3 Numberof PS R99 Users.........................................................................................................................................168

3.7.4 Numberof HSDPA Users........................................................................................................................................172

3.7.5 Numberof HSUPA Users........................................................................................................................................172

3.7.6 Numberof E-FACH Users......................................................................................................................................173

3.7.7 Numberof E-RACH Users......................................................................................................................................173

3.7.8 Numberof CS Over HSPA Users............................................................................................................................174

3.7.9 Numberof HSDPA 64QAM Users.........................................................................................................................174

3.7.10 Number of HSDPA MIMO Users.........................................................................................................................175

3.7.11 Number of HSUPA 16QAM users........................................................................................................................175

3.7.12 Number of HSDPA MIMO64QAM Users............................................................................................................176

3.7.13 Number of MBMS Users.......................................................................................................................................176

3.7.14 HSDPA RLC Traffic Volume...............................................................................................................................177

3.7.15 HSUPA RLC Traffic Volume...............................................................................................................................178

3.7.16 R99 Service UL Traffic Volume...........................................................................................................................178

3.7.17 R99 Service DL Traffic Volume...........................................................................................................................179

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3.7.18 E-FACH Traffic Volume.......................................................................................................................................182

3.7.19 E-RACH Traffic Volume......................................................................................................................................182

3.7.20 Average Number of DC-HSDPA Users................................................................................................................183

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1Changes in the GBSS&RAN KPI ReferenceThis chapter describes the changes made in the GBSS&RAN KPI Reference.

01 (2014-04-29)

This issue has no changes.

Draft A (2014-01-27)

Compared with Issue GBSS&RAN15.0 01 (2013-05-04), this issue includes the following

changes.

Change

Type

Change Description

Function

change

Added l 3.7.7 Number of E-RACH Users

l 3.7.19 E-RACH Traffic Volume

l 3.1.27 Success Ratio of Cell Updates Initiated by CS

Service of PCH UEs

l 3.1.28 Success Ratio of Cell Updates Initiated by New PS

Service of PCH UEs

l 3.1.29 CS RAB Setup Success Ratio of PCH UEs

l 3.1.30 New PS RAB Setup Success Ratio of PCH UEs

l 3.5.20 DC-HSDPA Call Drop Ratio

l 3.5.21 HSDPA 64QAM Call Drop Ratio

l 3.5.22 HSDPA MIMO Call Drop Ratio

l 3.5.23 HSDPA MIMO+64QAM Call Drop Ratio

l 3.7.20 Average Number of DC-HSDPA Users

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ChangeType

Change Description

Modified l 3.5.10 PS Call Drop Ratio (PCH)

Modified the formula by adding countersVS.DCCC.Succ.F2U and VS.DCCC.Succ.D2U to the

denominator. The modified formula is more accurate

according to the KPI description.

l 3.5.11 PS Call Drop Ratio (PCH & Combined Service)

Modified the formula by adding counters

VS.DCCC.Succ.F2U and VS.DCCC.Succ.D2U to the

denominator. The modified formula is more accurate

according to the KPI description.

l 3.6.1 Average UL Throughput for PS R99 Service

Added the KPI "Average UL Throughput for PS R99 BEService of a Single User (Best Cell)."

l 3.6.2 Average DL Throughput for PS R99 Service

Added the KPI "Average DL Throughput for PS R99 BE

Service of a Single User (Best Cell)."

l 3.6.5 HSDPA Throughput

Added the formula of calculating HSDPA throughput for 3900

series base stations in Note.

l 3.6.6 HSUPA Throughput

Modified the formula of calculating "Mean Throughput for

One HSUPA Cell" in Note. In earlier KPI references, this KPI

is measured at the MAC-d layer. In this version, this KPI is

measured at the MAC-e/i layer over the air interface and

therefore more accurate for UEs.

Deleted None.

Editorial

change

None.

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2GSM Service KPIAbout This Chapter

The following KPIs are GSM Service KPIs.

2.1 CS Accessibility KPIs

This chapter describes the CS accessibility KPIs that mainly indicate the call success rate when

an MS accesses the network. Low accessibility KPIs directly lead to low user satisfaction.

2.2 CS CPU Usage KPI

This chapter describes the CS CPU usage KPI that indicates the mean ratio of the busy time of

the CPU in a granularity period.

2.3 CS Mobility KPIs

This chapter describes the CS mobility KPIs that indicate the handover success rate on the move.

In addition, these KPIs indicate the capability of providing continuous services. A low handover

success rate leads to a high call drop rate.

2.4 CS Receive Quality KPIs

This chapter describes the CS receive quality KPIs that indicate the mean receive quality rank

on the TCH.

2.5 CS Resource Usage KPIs

This chapter describes the CS resource Uusage KPIs that are used to monitor the load of hot

spots and the network. These KPIs can serve as references for capacity expansion. The traffic

volume KPIs help operators obtain the ratio of traffic during peak hours to traffic during off-

peak hours, to evaluate the system resource usage, and to adjust charges. The equipment

availability KPIs help operators learn about the running status of equipment, such as the running

status of channels. If these KPIs are low, equipment and transmission are faulty.

2.6 CS Retainability KPIs

This chapter describes the CS retainability KPIs that indicate the ratio of moving MSs to all MSs

as well as the moving frequency. In addition, these KPIs indicate the capability of providing

continuous services. A low success rate leads to low user satisfaction.

2.7 PS Accessibility KPIs

This chapter describes the PS accessibility KPIs that indicate whether MSs can easily access

cells. Poor PS accessibility KPIs decrease user satisfaction.

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2.8 PS Data Throughput KPIs

This chapter describes the PS data throughput rate KPIs. They involve the performance factors

associated with the MSs, the radio access network, and the core network. Now, the main

performance problem is concerned with the radio access network. Therefore, these KPIs indicate

the end-to-end service data link bearing capability of the GPRS network, which is directly relatedto user satisfaction.

2.9 PS Delay KPIs

This chapter describes the PS delay KPIs that indicate the service response speed of the network.

Long delay decreases user satisfaction.

2.10 PS Resource Usage KPIs

This chapter describes the PS resource usage rate KPIs that indicate the network resource usage

and the busy states of services. Therefore, these KPIs can be used to guide network expansion.

2.11 PS Retainability KPIs

This chapter describes the PS retainability KPIs that mainly involve the uplink and downlink

TBF call drop rates. These KPIs indicate the capability of providing continuous services by thenetwork and are directly related to user satisfaction. Therefore, a high call drop rate decreases

user satisfaction.

2.12 PS Transmission Performance KPIs

This chapter describes the PS transmission performance KPIs that indicate the quality of radio

transmission links in a cell. If the RLC data block retransmission rate in a cell is high, the quality

of the radio transmission links in the cell is poor. Therefore, take corresponding measures, such

as RF optimization.

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2.1 CS Accessibility KPIs

This chapter describes the CS accessibility KPIs that mainly indicate the call success rate when

an MS accesses the network. Low accessibility KPIs directly lead to low user satisfaction.

2.1.1 Immediate Assignment Success Rate

This counter provides the rate of successful service accesses (except PS service accesses) to a

signaling channel. It indicates the procedure from the initiation of the channel request message

(including the retransmitted channel request message) by the MS to the reception of the establish

indication message.

Table 2-1Immediate Assignment Success Rate

KPI Name Immediate Assignment Success Rate

Measurement

Scope

CELL

Formula RA303G:Immediate Assignment Success Rate = [CA303J:Call Setup

Indications (Circuit Service)] x {100}/

[CA300J:Channel Requests (Circuit Service)]

Associated

Counters

None

Notes 1. Unit: %

2. This KPI is essential.

2.1.2 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 total

number of requests for the SDCCH. It indicates the SDCCH collisions due to insufficient

resources.

Table 2-2Congestion Rate on SDCCH per Cell (Due to Busy)

KPI Name Congestion Rate on SDCCH per Cell (Due to Busy)

Measurement

Scope

CELL

Formula RR370:Congestion Rate on SDCCH per Cell (Due to Busy) =

[K3001:Failed SDCCH Seizures due to Busy SDCCH] x{100}/

[K3000:SDCCH Seizure Requests]

Associated

Counters

None

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Notes 1. Unit: %


2.1.3 Call Drop Rate on SDCCH

This counter provides the rate of call drops that occur when an SDCCH is occupied.

Table 2-3Call Drop Rate on SDCCH

KPI Name Call Drop Rate on SDCCH

Measurement

Scope

CELL

Formula ZTR104C:Call Drop Rate on SDCCH = [CM30:Call Drops on SDCCH]

x {100}/

[K3003:Successful SDCCH Seizures]

Associated

Counters

None

Notes 1. Unit: %


2.1.4 Assignment Success Rate

This counter provides the rate that the requested TCHs are seized successfully in the assignment

procedure. It involves the procedure from the BSC's receiving the assignment request sent by

the MSC to the assignment completion.

Table 2-4Assignment Success Rate

KPI Name Assignment Success Rate

MeasurementScope

CELL

Formula RCA313:Assignment Success Rate = [CA313:Successful Assignments] x

{100}/

[CA310:Assignment Requests]

Associated

Counters

None

Notes 1. Unit: %


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2.1.5 TCH Congestion Rate (Overflow)

This counter provides the rate of the number of failed immediate assignments, assignments, or

handovers due to no idle TCHs to the number of TCH seizure requests.

Table 2-5TCH Congestion Rate (Overflow)

KPI Name TCH Congestion Rate (Overflow)

Measurement

Scope

CELL

Formula K3041:TCH Congestion Rate (Overflow) = {[K3021:Failed TCH Seizures

due to Busy TCH (Signaling Channel)]

+ [K3011A:Failed TCH Seizures due to Busy TCH (Traffic Channel)]

+ [K3011B:Failed TCH Seizures in TCH Handovers due to Busy TCH

(Traffic Channel)]} x {100}/

{[K3020:TCH Seizure Requests (Signaling Channel)]

+ [K3010A:TCH Seizure Requests (Traffic Channel)]

+[K3010B:TCH Seizure Requests in TCH Handovers (Traffic Channel)]}

Associated

Counters

None

Notes 1. Unit: %


2.1.6 TCH Seizure Success Rate

This counter provides the rate that the requested TCHs are seized successfully in the very early

assignment procedure, assignment procedure, or handover procedure. Assignment Success Rate

indicates the TCH seizure condition in the assignment procedure. Comparably, TCH Seizure

Success Rate indicates the successful seizure of all the TCHs.

Table 2-6TCH Seizure Success Rate

KPI Name TCH Seizure Success Rate

Measurement

Scope

CELL

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Formula K3043:TCH Seizure Success Rate = {[K3023:Successful TCH Seizures

(Signaling Channel)]

+ [K3013A:Successful TCH Seizures (Traffic Channel)]

+ [K3013B:Successful TCH Seizures in TCH handovers (TrafficChannel)]} x {100}/

{[K3020:TCH Seizure Requests (Signaling Channel)]

+ [K3010A:TCH Seizure Requests (Traffic Channel)]

+[K3010B:TCH Seizure Requests in TCH Handovers (Traffic Channel)]}

Associated

Counters

None

Notes Unit: %

2.1.7 Call Establishment Success Rate

This counter provides the rate of successful calls initiated by the MS from the call setup procedure

to the assignment completion procedure.

Table 2-7Call Establishment Success Rate

KPI Name Call Establishment Success Rate

Measurement

Scope

CELL

Formula RA333:Call Establishment Success Rate = {[CA313:Successful

Assignments]

-{[A3100K:Assignment Requests (Signaling Channel) (SDCCH)]

+[A3100A:Assignment Requests (Signaling Channel) (TCH)]

-[A312S:Failed Assignments (Signaling Channel)]

+[CA310A:Assignment Requests (TCH Assigned Repeatedly over A

Interface)]

-[CA312A:Failed Assignments (TCH Assigned Repeatedly over A

Interface)]}} x{100}/{[A3039J:SDCCH Seizures for Speech Service]

+[A301F:TCHF Seizures for Speech Service]

+[A301HH:TCHH Seizures for Speech Service]}

Associated

Counters

None

Notes Unit: %

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2.1.8 BSS Call Establishment Success Rate

This counter provides the success rates of BSS call establishments.

Table 2-8BSS Call Establishment Success Rate

KPI Name BSS Call Establishment Success Rate

Measurement

Scope

CELL

Formula RA333A:BSS Call Establishment Success Rate = {[RA303G:Success

Rate of Immediate Assignments]/{100}}

x {[RCA313:Assignment Success Rate]/{100}}

x {1 - ([ZTR104C:Call Drop Rate on SDCCH])/{100}}

x {100}

Associated

Counters

RA333:Success Rate of Call Establishment

Notes Unit: %

2.1.9 Paging Overload Rate

This counter provides the rate of the number of paging overload times of CS and PS services on

the Abis interface to deliver paging messages.

Table 2-9Paging Overload Rate

KPI Name Paging Overload Rate

Measurement

Scope

CELL

Formula RL3188:Paging Overload Rate = {[L3188C:MSG CCCH LOAD IND

(PCH) Messages Sent on Abis Interface (CS Service)]

+[L3188D:MSG CCCH LOAD IND (PCH) Messages Sent on Abis

Interface (PS Service)]} x {100}/{[A330:Delivered Paging Messages for CS Service]

+[A331:Delivered Paging Messages for PS Service]}

Associated

Counters

None

Notes 1. Unit: %


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2.2 CS CPU Usage KPI

This chapter describes the CS CPU usage KPI that indicates the mean ratio of the busy time of

the CPU in a granularity period.

2.2.1 Average CPU Usage of the XPU(Only for BSC6900)

This counter provides the average CPU usage of the XPU in a measurement period. It indicates

the load and operating performance of the CPU on the XPU in the measurement period.

Table 2-10Average CPU Usage of the XPU

KPI Name Average CPU Usage of the XPU

MeasurementScope

XPU

Formula AR9780:Average CPU Usage of the XPU

Associated

Counters

None

Notes 1. Unit: %


2.2.2 Average CPU Usage of the CPU(Only for BSC6910)

This counter provides the average CPU usage of the CPU in a measurement period. It indicates

the load and operating performance of the CPU on the CPU in the measurement period.

Table 2-11Average CPU Usage of the CPU

KPI Name Average CPU Usage of the CPU

Measurement

Scope

CPU

Formula AR9720:Average CPU Usage of the CPU

Associated

Counters

None

Notes 1. Unit: %


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2.3 CS Mobility KPIs

This chapter describes the CS mobility KPIs that indicate the handover success rate on the move.In addition, these KPIs indicate the capability of providing continuous services. A low handover

success rate leads to a high call drop rate.

2.3.1 Handover Success Rate

This counter provides the rate of the total number of successful handovers due to any cause to

the total number of handover requests due to any cause. The purpose of handover is to ensure

the call continuity, improve the speech quality, and reduce the cross interference in the network,

providing better services for the MSs.

Table 2-12Handover Success Rate

KPI Name Handover Success Rate

Measurement

Scope

CELL

Formula RH303:Handover Success Rate

= {[CH313:Number of Successful Outgoing Internal Inter-Cell

Handovers]

+ [CH333:Successful Outgoing External Inter-Cell Handovers]} x {100}/

{[CH310:Number of Outgoing Internal Inter-Cell Handover Requests]+ [CH330:Outgoing External Inter-Cell Handover Requests]}

Associated

Counters

RH303A:Um-Interface Handover Success Rate

Notes 1. Unit: %


2.3.2 Um-Interface Handover Success RateThis counter provides the handover success rate on the Um interface after a handover command

is sent and before the handover is complete. Statistics taken by this item exclude target cell

handover failure due to congestion. Therefore, the value of this counter is always greater than

or equal to the value of Handover Success Rate.

Table 2-13Um-Interface Handover Success Rate

KPI Name Um-Interface Handover Success Rate

Measurement

Scope

CELL

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Formula RH303A:Um-Interface Handover Success Rate

= {[CH313:Number of Successful Outgoing Internal Inter-Cell

Handovers]

+ [CH333:Successful Outgoing External Inter-Cell Handovers]} x {100}/{[CH311:Number of Outgoing Internal Inter-Cell Handover Commands]

+ [CH331:Outgoing External Inter-Cell Handover Commands]}

Associated

Counters

RH303:Handover Success Rate

Notes Unit: %

2.3.3 Intra-BSC Handover Success RateThis counter provides the intra-BSC handover success rate, including the intra-BSC intra-cell

handovers and intra-BSC inter-cell handovers. It indicates intra-BSC handover, and reduces the

influence of other BSCs.

Table 2-14Intra-BSC Handover Success Rate

KPI Name Intra-BSC Handover Success Rate

Measurement

Scope

CELL

Formula RH303B:Intra-BSC Handover Success Rate

= {[CH303:Successful Internal Intra-Cell Handovers]

+ [CH323:Number of Successful Incoming Internal Inter-Cell

Handovers]} x {100}/

{[CH300:Internal Intra-Cell Handover Requests]

+ [CH320:Number of Incoming Internal Inter-Cell Handover Requests]}

Associated

Counters

RH303C: Um-Interface Intra-BSC Handover Success Rate

Notes Unit: %

2.3.4 Um-Interface Intra-BSC Handover Success Rate

Compared with Intra-BSC Handover Success Rate, this counter focuses on the influence of the

Um interface on handover. It involves the procedures from sending a handover command to

handover completion, and therefore reduces failures due to channel congestion.

Table 2-15Um-Interface Intra-BSC Handover Success Rate

KPI Name Um-Interface Intra-BSC Handover Success Rate

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Measurement

Scope

CELL

Formula RH303C:Um-Interface Intra-BSC Handover Success Rate

= {[CH303:Successful Internal Intra-Cell Handovers]

+ [CH323:Number of Successful Incoming Internal Inter-Cell

Handovers]} x {100}/

{[CH301:Internal Intra-Cell Handover Commands]

+ [CH321:Number of Incoming Internal Inter-Cell Handover Responses]}

Associated

Counters

RH303B:Intra-BSC Handover Success Rate

Notes Unit: %

2.3.5 Incoming Inter-BSC Handover Success Rate

This counter provides the success rate of incoming inter-BSC handovers. It indicates the inter-

BSC handover interaction.

Table 2-16Incoming Inter-BSC Handover Success Rate

KPI Name Incoming Inter-BSC Handover Success Rate

Measurement

Scope

CELL

Formula TH343:Incoming Inter-BSC Handover Success Rate

= [CH343:Successful Incoming External Inter-Cell Handovers] x {100}/

[CH340:Incoming External Inter-Cell Handover Requests]

Associated

Counters

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

Notes Unit: %

2.3.6 Um-Interface Incoming Inter-BSC Handover Success Rate

This counter provides the success rate of incoming inter-BSC handovers on the Um interface.

It indicates the inter-BSC handover interaction.

Table 2-17Um-Interface Incoming Inter-BSC Handover Success Rate

KPI Name Um-Interface Incoming Inter-BSC Handover Success Rate

Measurement

Scope

CELL

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Formula RH303D:Um-Interface Incoming Inter-BSC Handover Success Rate

= [CH343:Successful Incoming External Inter-Cell Handovers] x {100}/

[CH341:Incoming External Inter-Cell Handover Responses]

Associated

Counters

TH343: Incoming Inter-BSC Handover Success Rate

Notes Unit: %

2.3.7 Outgoing Inter-BSC Handover Success Rate

This counter provides the success rate of outgoing inter-BSC handovers. It indicates the inter-

BSC handover interaction.

Table 2-18Outgoing Inter-BSC Handover Success Rate

KPI Name Outgoing Inter-BSC Handover Success Rate

Measurement

Scope

CELL

Formula TH333:Outgoing Inter-BSC Handover Success Rate

= [CH333:Successful Outgoing External Inter-Cell Handovers] x {100}/

[CH330:Outgoing External Inter-Cell Handover Requests]

AssociatedCounters

RH303E: Um-Interface Outgoing Inter-BSC Handover Success Rate

Notes Unit: %

2.3.8 Um-Interface Outgoing Inter-BSC Handover Success Rate

This counter provides the success rate of outgoing inter-BSC handovers on the Um interface. It

indicates the inter-BSC handover interaction.

Table 2-19Um-Interface Outgoing Inter-BSC Handover Success Rate

KPI Name Um-Interface Outgoing Inter-BSC Handover Success Rate

Measurement

Scope

CELL

Formula RH303E:Um-Interface Outgoing Inter-BSC Handover Success Rate

= [CH333:Successful Outgoing External Inter-Cell Handovers] x {100}/

[CH331:Outgoing External Inter-Cell Handover Commands]

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Associated

Counters

TH333: Outgoing Inter-BSC Handover Success Rate

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 to

the number of corresponding handover requests.

Table 2-20Success 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

Formula RH303F:Success Rate of Dual-Band Handovers

(900/850/810-1800/1900)

= {[RH3031G:Incoming Internal Inter-Cell Handover Requests

(900/850/810-1800/1900)]

+ [RH3033G:Incoming External Inter-Cell Handover Requests

(900/850/810-1800/1900)]

+ [RH3035G:Outgoing External Inter-Cell Handover Requests

(900/850/810-1800/1900)]

- {[RH3031F:Failed Incoming Internal Inter-Cell Handovers

(900/850/810-1800/1900)]

+ [RH3033F:Failed Incoming External Inter-Cell Handovers

(900/850/810-1800/1900)]

+ [RH3035F:Failed Outgoing External Inter-Cell Handovers

(900/850/810-1800/1900)]}} x {100}/

{[RH3031G:Incoming Internal Inter-Cell Handover Requests

(900/850/810-1800/1900)]


(900/850/810-1800/1900)]


(900/850/810-1800/1900)]}

Associated

Counters

RH303G: Success Rate of Dual-Band Handovers

(1800/1900-900/850/810)

Notes Unit: %

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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 to

the number of corresponding handover requests.

Table 2-21Success Rate of Dual-Band Handovers (1800/1900-900/850/810)

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

Measurement

Scope

CELL

Formula RH303G:Success Rate of Dual-Band Handovers

(1800/1900-900/850/810)

= {[RH3032G:Incoming Internal Inter-Cell Handover Requests

(1800/1900-900/850/810)]


(1800/1900-900/850/810)]


(1800/1900-900/850/810)]

- {[RH3032F:Failed Incoming Internal Inter-Cell Handovers

(1800/1900-900/850/810)]

+ [RH3034F:Failed Incoming External Inter-Cell Handovers

(1800/1900-900/850/810)]

+ [RH3036F:Failed Outgoing External Inter-Cell Handovers

(1800/1900-900/850/810)]}} x {100}/

{[RH3032G:Incoming Internal Inter-Cell Handover Requests

(1800/1900-900/850/810)]


(1800/1900-900/850/810)]


(1800/1900-900/850/810)]}

Associated

Counters

RH303F: Success Rate of Dual-Band Handovers

(900/850/810-1800/1900)

Notes Unit: %

2.4 CS Receive Quality KPIs

This chapter describes the CS receive quality KPIs that indicate the mean receive quality rank

on the TCH.

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2.4.1 Rx_QUALITY(UPLINK)

This counter provides the proportion of uplink half/full rate in the mean receive quality ranks 0

to 4.

Table 2-22Rx_QUALITY(UPLINK)

KPI Name Rx_QUALITY(UPLINK)

Measurement

Scope

TRX

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Formula Rx_QUALITY(UPLINK)

={[CS410A:Number of MRs on Uplink TCHF (Mean Receive Quality

Rank 0)]

+ [CS411A:Number of MRs on Uplink TCHF (Mean Receive QualityRank 1)]

+ [CS412A:Number of MRs on Uplink TCHF (Mean Receive Quality

Rank 2)]


Rank 3)]


Rank 4)]

+ [CS410C:Number of MRs on Uplink TCHH (Mean Rank of Receive

Quality 0)]

+ [CS411C:Number of MRs on Uplink TCHH (Mean Receive QualityRank 1)]

+ [CS412C:Number of MRs on Uplink TCHH (Mean Receive Quality

Rank 2)]


Rank 3)]


Rank 4)]}x{100}/

{[CS410A:Number of MRs on Uplink TCHF (Mean Receive Quality

Rank 0)]



Rank 2)]


Rank 3)]


Rank 4)]


Rank 5)]



Rank 7)]

+ [CS410C:Number of MRs on Uplink TCHH (Mean Rank of Receive

Quality 0)]


Rank 1)]


Rank 2)]

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Rank 3)]


Rank 4)]


Rank 5)]


Rank 6)]


Rank 7)]}

Associated

Counters

None

Notes None

2.4.2 Rx_QUALITY(DOWNLINK)

This counter provides the proportion of downlink half/full rate in the mean receive quality ranks

0 to 4.

Table 2-23Rx_QUALITY(DOWNLINK)

KPI Name Rx_QUALITY(DOWNLINK)

Measurement

Scope

TRX

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Formula Rx_QUALITY(DOWNLINK)

= {[CS410B:Number of MRs on Downlink TCHF (Mean Receive Quality

Rank 0)]

+ [CS411B:Number of MRs on Downlink TCHF (Mean Receive QualityRank 1)]

+ [CS412B:Number of MRs on Downlink TCHF (Mean Receive Quality

Rank 2)]


Rank 3)]


Rank 4)]

+ [CS410D:Number of MRs on Downlink TCHH (Mean Receive Quality

Rank 0)]

+ [CS411D:Number of MRs on Downlink TCHH (Mean Receive QualityRank 1)]


Rank 2)]


Rank 3)]


Rank 4)]}x{100}/

{[CS410B:Number of MRs on Downlink TCHF (Mean Receive Quality

Rank 0)]



Rank 2)]


Rank 3)]


Rank 4)]


Rank 5)]



Rank 7)]


Rank 0)]


Rank 1)]


Rank 2)]

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Rank 3)]


Rank 4)]


Rank 5)]


Rank 6)]


Rank 7)]}

Associated

Counters

None

Notes None

2.5 CS Resource Usage KPIs

This chapter describes the CS resource Uusage KPIs that are used to monitor the load of hot

spots and the network. These KPIs can serve as references for capacity expansion. The traffic

volume KPIs help operators obtain the ratio of traffic during peak hours to traffic during off-

peak hours, to evaluate the system resource usage, and to adjust charges. The equipment

availability KPIs help operators learn about the running status of equipment, such as the running

status of channels. If these KPIs are low, equipment and transmission are faulty.

2.5.1 Traffic Volume on SDCCH

This counter provides the ratio of the duration for which the MS occupies the signaling channel

to the granularity period. The signaling channels include the SDCCHs and the TCHs used for

signaling channels.

Table 2-24Traffic Volume on SDCCH

KPI Name Traffic Volume on SDCCH

MeasurementScope

CELL

Formula K3004:Traffic Volume on SDCCH = [R3550M:Traffic Volume of

Signaling Channels (SDCCH)]

Associated

Counters

None

Notes 1. This KPI is essential.

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2.5.2 Traffic Volume on TCH

This counter provides the frequency of seizing the TCHs, that is, the actual length of activated

TCHs.

Table 2-25Traffic Volume on TCH

KPI Name Traffic Volume on TCH

Measurement

Scope

CELL

Formula K3014:Traffic Volume on TCH

= [AR3551A:Mean Number of Busy TCHs (TCHF) (900/850/810 band)]

+ [AR3551B:Mean Number of Busy TCHs (TCHF) (1800/1900 Band)]

+ [AR3552A:Mean Number of Busy TCHs (TCHH) (900/850/810 band)]+ [AR3552B:Mean Number of Busy TCHs (TCHH) (1800/1900 Band)]

Associated

Counters

None

Notes 1. This KPI is essential.

2.5.3 TCHH Traffic Volume

This counter provides the traffic volume on the TCHs of all the cells under the control of the

BSC, excluding the traffic volume in the very early assignment.

Table 2-26TCHH Traffic Volume

KPI Name TCHH Traffic Volume

Measurement

Scope

CELL

Formula K3034:TCHH Traffic Volume

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

Associated

Counters

None

Notes None

2.5.4 TCH Availability

This counter provides the rate of available TCHs to configured TCHs.

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Table 2-27TCH Availability

KPI Name TCH Availability

Measurement

Scope

CELL

Formula RR307:TCH Availability

= {[AR3027A:Mean Number of Available Channels (TCHF)

(900/850/810 band)]

+ [AR3027B:Mean Number of Available Channels (TCHF) (1800/1900

Band)]

+ [AR3028A:Mean Number of Available Channels (TCHH) (900/850/810

band)]

+ [AR3028B:Mean Number of Available Channels (TCHH) (1800/1900

Band)]} x {100}/

{[AR3017A:Mean Number of Dynamically Configured Channels (TCHF)

(900/850/810 band)]

+ [AR3017B:Mean Number of Dynamically Configured Channels

(TCHF) (1800/1900 Band)]

+ [AR3018A:Mean Number of Dynamically Configured Channels

(TCHH) (900/850/810 band)]

+ [AR3018B:Mean Number of Dynamically Configured Channels

(TCHH) (1800/1900 Band)]}

Associated

Counters

None

Notes Unit: %

2.5.5 TCH Resource Usage

This counter provides the rate of the actual traffic volume to the theoretical traffic volume.

Table 2-28TCH Resource Usage

KPI Name TCH Resource Usage

Measurement

Scope

CELL

Formula Actual traffic volume divided by the theoretical capacity (if the theoretical

capacity exceeds 12000 Erl, take 12000 Erl for calculation)

Associated

Counters

None

Notes None

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2.5.6 TRX Usage

This counter provides the rate of available TRXs in a cell to TRXs configured in the cell.

Table 2-29TRX Usage

KPI Name TRX Usage

Measurement

Scope

CELL

Formula RK3255:TRX Usage

= [S3656:Number of available TRXs in a cell] x {100}/

[S3655:Number of configured TRXs in a cell]

Associated

Counters

None

Notes

gbss16.0&ran16.0 kpi reference(01)(pdf)-en

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