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HUAWEI BSC6000 Base Station Subsystem

V900R008

BSS KPI Reference

Issue 01

Date 2008-06-10

INTERNAL

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Huawei Technologies Co., Ltd. provides customers with comprehensive technical support and service. For any

assistance, please contact our local office or company headquarters.

 

Huawei Technologies Co., Ltd.

Address: Huawei Industrial Base

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Shenzhen 518129

People's Republic of China

Website: http://www.huawei.com

Email: support@huawei.com

 

Copyright © Huawei Technologies Co., Ltd. 2008. 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

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Notice

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 the statements, information, and

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

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Contents

About This Document.....................................................................................................................1

1 Introduction to KPI....................................................................................................................1-1

2 CS Accessibility KPIs................................................................................................................2-1

2.1 Immediate Assignment Success Rate..............................................................................................................2-2

2.2 SDCCH Congestion Rate(Overflow)..............................................................................................................2-2

2.3 SDCCH Drop Rate..........................................................................................................................................2-2

2.4 TCH Assignment Success Rate.......................................................................................................................2-3

2.5 TCH Attempt Failure Rate Due to No TCH Assignment...............................................................................2-3

2.6 TCH Congestion Rate(Overflow)...................................................................................................................2-3

2.7 TCH Seizure Success Rate..............................................................................................................................2-4

2.8 Call Establishment Success Rate.....................................................................................................................2-4

2.9 BSS Call Setup Success Rate..........................................................................................................................2-5

3 CS Retainability KPIs................................................................................................................3-13.1 TCH Call Drop Rate(including Handovers)....................................................................................................3-2

3.2 TCH Call Drop Rate (Excluding Handover)...................................................................................................3-2

3.3 Traffice Volume to Call Drops........................................................................................................................3-2

3.4 TCH RF Lost Rate...........................................................................................................................................3-3

3.5 TCH Handover Lost Rate................................................................................................................................3-3

3.6 Handover Success Rate...................................................................................................................................3-4

3.7 Handover RF Success Rate.............................................................................................................................3-4

3.8 Intra-BSC Handover Success Rate..................................................................................................................3-4

3.9 Inter-BSC Incoming Cell Handover Success Rate..........................................................................................3-53.10 Inter-BSC Outgoing Cell Handover Success Rate........................................................................................3-5

3.11 Intra-BSC Handover RF Success Rate..........................................................................................................3-5

3.12 Inter-BSC Incoming Cell Radio Handover Success Rate.............................................................................3-6

3.13 Inter-BSC Outgoing Cell Radio Handover Success Rate.............................................................................3-6

3.14 Dual-Band Handover Success Rate(900/850-1800/1900)............................................................................3-7

3.15 Dual-Band Handover Success Rate(1800/1900-900/850)............................................................................3-8

3.16 Call Success Rate..........................................................................................................................................3-9

4 CS Resource Utilization KPIs..................................................................................................4-1

4.1 TCH Traffic Volume.......................................................................................................................................4-2

4.2 SDCCH Traffic Volume..................................................................................................................................4-2

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4.3 TCHH Traffic Volume....................................................................................................................................4-2

4.4 TCH Availablity..............................................................................................................................................4-3

4.5 TRX Availability.............................................................................................................................................4-3

4.6 SDCCH Availability.......................................................................................................................................4-3

5 PS Throughput KPIs..................................................................................................................5-1

5.1 Uplink RLC Payload.......................................................................................................................................5-2

5.2 Downlink RLC Payload..................................................................................................................................5-2

5.3 Uplink EGPRS RLC Payload..........................................................................................................................5-2

5.4 Downlink EGPRS RLC Payload.....................................................................................................................5-3

5.5 Mean payload (kbytes) of the uplink data at the LLC layer............................................................................5-3

5.6 Mean payload (kbytes) of the downlink data at the LLC layer.......................................................................5-4

5.7 Mean Downlink NS_PDUs throughput...........................................................................................................5-4

5.8 Packet data rate on air interface......................................................................................................................5-4

6 PS Transmission KPIs...............................................................................................................6-1

6.1 Uplink RLC Data Retransmission Rate..........................................................................................................6-2

6.2 Downlink RLC Data Retransmission Rate......................................................................................................6-2

6.3 Uplink EGPRS RLC Data Retransmission Rate.............................................................................................6-3

6.4 Downlink EGPRS RLC Data Retransmission Rate........................................................................................6-3

7 PS Accessibility KPIs................................................................................................................ 7-1

7.1 Uplink Assignment Success Rate....................................................................................................................7-2

7.2 Downlink Assignment Success Rate...............................................................................................................7-2

7.3 Uplink EGPRS Assignment Success Rate......................................................................................................7-2

7.4 Downlink EGPRS Assignment Success Rate.................................................................................................7-3

7.5 Mean inter-arrival time of packet access requests on CCCH..........................................................................7-3

7.6 Uplink GPRS TBF Congestion Rate...............................................................................................................7-4

7.7 Downlink GPRS TBF Congestion Rate..........................................................................................................7-4

7.8 Uplink EGPRS TBF Congestion Rate............................................................................................................7-5

7.9 Downlink EGPRS TBF Congestion Rate........................................................................................................7-5

8 PS Resource Utilization KPIs...................................................................................................8-1

8.1 Uplink PDTCH/PACCH utilization rate.........................................................................................................8-2

8.2 Downlink PDTCH/PACCH utilization rate....................................................................................................8-2

8.3 PDCH occupation rate.....................................................................................................................................8-2

8.4 Pre-empted Dynamic PDCH Carrying Packet Traffic Reclaimed SuccessRate.............................................8-3

8.5 PDCH Allocation Success Rate......................................................................................................................8-3

8.6 Downlink RLC Data Throughput Per PDCH..................................................................................................8-4

8.7 Uplink RLC Data Throughput Per PDCH.......................................................................................................8-4

9 PS Retainability KPIs................................................................................................................9-1

9.1 Uplink GPRS TBF Drop Rate.........................................................................................................................9-2

9.2 Downlink GPRS TBF DropRate.....................................................................................................................9-2

9.3 Uplink EGPRS TBF Drop Rate......................................................................................................................9-3

Contents

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9.4 Downlink EGPRS TBF Drop Rate..................................................................................................................9-3

10 PS End-to-End Delay KPIs...................................................................................................10-1

10.1 PING Delay.................................................................................................................................................10-2

10.2 Mean Delay of PDP Activation...................................................................................................................10-210.3 Mean Delay of Attachment.........................................................................................................................10-3

10.4 Cell Reselection Time for 2G Packet Services...........................................................................................10-3

10.5 Cell Reselection Time for 2G->3G Packet Services...................................................................................10-4

11 PS End-to-End Quality KPIs................................................................................................11-1

11.1 GRPS Data Transmission Rate...................................................................................................................11-2

11.2 EDGE Data Transmission Rate...................................................................................................................11-2

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Figures

Figure 1-1 Classification of the measurement set of the performance counters in the CS domain.....................1-2

Figure 1-2 KPIs classified by measurement object in the PS...............................................................................1-3

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Tables

Table 2-1 Immediate Assignment Success Rate...................................................................................................2-2

Table 2-2 SDCCH Congestion Rate(Overflow)...................................................................................................2-2

Table 2-3 SDCCH Drop Rate...............................................................................................................................2-2

Table 2-4 TCH Assignment Success Rate............................................................................................................2-3

Table 2-5 TCH Attempt Failure Rate Due to No TCH Assignment....................................................................2-3

Table 2-6 TCH Congestion Rate(Overflow)........................................................................................................2-3

Table 2-7 TCH Seizure Success Rate...................................................................................................................2-4

Table 2-8 Call establishment success rate............................................................................................................2-4

Table 2-9 BSS Call Setup Success Rate...............................................................................................................2-5

Table 3-1 TCH Call Drop Rate(including Handovers）......................................................................................3-2

Table 3-2 TCH call drop rate (excluding handover)............................................................................................3-2

Table 3-3 Traffice Volume to Call Drops............................................................................................................3-2

Table 3-4 TCH RF Lost Rate...............................................................................................................................3-3

Table 3-5 TCH Handover Lost Rate.....................................................................................................................3-3

Table 3-6 Handover success rate..........................................................................................................................3-4

Table 3-7 Handover RF Success Rate..................................................................................................................3-4

Table 3-8 Intra-BSC Handover Success Rate.......................................................................................................3-4

Table 3-9 Inter-BSC Incoming Cell Handover Success Rate...............................................................................3-5

Table 3-10 Inter-BSC Outgoing Cell Handover Success Rate.............................................................................3-5

Table 3-11 Intra-BSC Handover RF Success Rate...............................................................................................3-5

Table 3-12 Inter-BSC Incoming Cell Radio Handover Success Rate..................................................................3-6

Table 3-13 Inter-BSC Outgoing Cell Radio Handover Success Rate..................................................................3-6

Table 3-14 Dual-Band Handover Success Rate(900/850-1800/1900).................................................................3-7Table 3-15 Dual-Band Handover Success Rate (1800/1900-900/850)................................................................3-8

Table 3-16 Call Success Rate...............................................................................................................................3-9

Table 4-1 TCH Traffic Volume............................................................................................................................4-2

Table 4-2 SDCCH Traffic Volume......................................................................................................................4-2

Table 4-3 TCHH Traffic Volume.........................................................................................................................4-2

Table 4-4 TCH Availablity...................................................................................................................................4-3

Table 4-5 TRX Availability..................................................................................................................................4-3

Table 4-6 SDCCH Availability............................................................................................................................4-3

Table 5-1 Uplink RLC Payload............................................................................................................................5-2

Table 5-2 Downlink RLC Payload.......................................................................................................................5-2

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Table 5-3 Uplink EGPRS RLC Payload...............................................................................................................5-2

Table 5-4 Downlink EGPRS RLC Payload..........................................................................................................5-3

Table 5-5 Mean payload (kbytes) of the uplink data at the LLC layer.................................................................5-3

Table 5-6 Mean payload (kbytes) of the downlink data at the LLC layer............................................................5-4

Table 5-7 Mean Downlink NS_PDUs throughput...............................................................................................5-4

Table 5-8 Packet data rate on air interface...........................................................................................................5-4

Table 6-1 Uplink RLC Data Retransmission Rate...............................................................................................6-2

Table 6-2 Downlink RLC Data Retransmission Rate..........................................................................................6-2

Table 6-3 Uplink EGPRS RLC Data Retransmission Rate..................................................................................6-3

Table 6-4 Downlink EGPRS RLC Data Retransmission Rate.............................................................................6-3

Table 7-1 Uplink Assignment Success Rate.........................................................................................................7-2

Table 7-2 Downlink Assignment Success Rate....................................................................................................7-2

Table 7-3 Uplink EGPRS Assignment Success Rate...........................................................................................7-2

Table 7-4 Downlink EGPRS Assignment Success Rate......................................................................................7-3

Table 7-5 Mean inter-arrival time of packet access requests on CCCH...............................................................7-3

Table 7-6 Uplink GPRS TBF Congestion Rate....................................................................................................7-4

Table 7-7 Downlink GPRS TBF Congestion Rate...............................................................................................7-4

Table 7-8 Uplink EGPRS TBF Congestion Rate.................................................................................................7-5

Table 7-9 Downlink EGPRS TBF Congestion Rate............................................................................................7-5

Table 8-1 Uplink PDTCH/PACCH utilization rate..............................................................................................8-2

Table 8-2 Downlink PDTCH/PACCH utilization rate.........................................................................................8-2

Table 8-3 PDCH occupation rate..........................................................................................................................8-2

Table 8-4 Pre-empted Dynamic PDCH Carrying Packet Traffic Reclaimed SuccessRate..................................8-3Table 8-5 PDCH Allocation Success Rate...........................................................................................................8-3

Table 8-6 Downlink RLC Data Throughput Per PDCH.......................................................................................8-4

Table 8-7 Uplink RLC Data Throughput Per PDCH...........................................................................................8-4

Table 9-1 Uplink GPRS TBF Drop Rate..............................................................................................................9-2

Table 9-2 Downlink GPRS TBF DropRate..........................................................................................................9-2

Table 9-3 Uplink EGPRS TBF Drop Rate...........................................................................................................9-3

Table 9-4 Downlink EGPRS TBF Drop Rate......................................................................................................9-3

Table 10-1 PING Delay......................................................................................................................................10-2

Table 10-2 Mean Delay of PDP Activation........................................................................................................10-2

Table 10-3 Mean Delay of Attachment..............................................................................................................10-3

Table 10-4 Cell Reselection Time for 2G Packet Services................................................................................10-3

Table 10-5 Cell Reselection Time for 2G->3G Packet Services........................................................................10-4

Table 11-1 GRPS Data Transmission Rate........................................................................................................11-2

Table 11-2 EDGE Data Transmission Rate........................................................................................................11-2

Tables

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About This Document

Purpose

This document describes the definitions, types, and units of Huawei BSS KPIs.

Product Version

The following table lists the product versions related to the document.

Product Name Model Product Version

BSC BSC6000 V900R008C01

BTS BTS3012 V300R004&V300R005&V300R006

BTS3012AE V300R005&V300R006

BTS3006C V300R005&V300R006

BTS3002E V300R005

BTS3036/BTS3900

GSM

V300R008

BTS3036A/BTS3900A

GSM

V300R008

DBS3036/DBS3900

GSM

V300R008

 

Intended Audience

This document is intended for:

l  Network planners

l  Network administrators

l  Network operators

Change History

For changes in the document, refer to Changes in BSS KPI Reference.

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Organization

1 Introduction to KPI

This describes the KPI, which is used to monitor the network performance and detect network 

 problems.

2 CS Accessibility KPIs

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

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

3 CS Retainability KPIs

This describes the CS Retainability KPIs that indicate the ratio of moving MSs to all MSs, the

moving frequency, and the success rate of handovers on the move. In addition, these KPIs

indicate the capability of providing continuous services. A low handover success rate may lead

to a high call drop rate. A low success rate leads to low user satisfaction.

4 CS Resource Utilization KPIs

This describes the CS Resource Utilization KPIs that are used to monitor the load of hot cells

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

KPIs help to obtain the ratio of busy-hour traffic to idle-hour traffic, to evaluate the utilization

of system resources, and to adjust charges. The equipment availability KPIs help to know the

running status of equipment, such as the running status of channels. If these KPIs are low,

equipment and transmission may be faulty.

5 PS Throughput KPIs

This describes the PS Throughput KPIs that are used to monitor the load of hot cells and the

network and to obtain service models. These KPIs can serve as references for capacity expansion.The PS Throughput KPIs help to obtain the busy-hour PS traffic and the idle-hour PS traffic, to

evaluate the utilization of system resources, and to facilitate service assessment of carriers.

6 PS Transmission KPIs

This describes the PS Transmission 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.

7 PS Accessibility KPIs

This describes the PS Accessibility KPIs that indicate whether MSs can easily access cells. Poor PS Accessibility KPIs directly affect user satisfaction.

8 PS Resource Utilization KPIs

This describes the PS Resource Utilization KPIs that indicate the utilization of the network 

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

expansion.

9 PS Retainability KPIs

This 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 the network 

and are directly related to user satisfaction. Thus, an increase in call drop rate directly leads toa decrease in user satisfaction.

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10 PS End-to-End Delay KPIs

This describes the PS End-to-End Delay KPIs that indicate the service response speed of the

network. Long delay affects user satisfaction.

11 PS End-to-End Quality KPIs

This describes the PS end-to-end quality KPIs. They involve the performance factors associated

with the terminals, 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 are directly related to user 

satisfaction.

Conventions

1. Symbol Conventions

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

Symbol Description

DANGER

Indicates a hazard with a high level of risk that, if not avoided,

will result in death or serious injury.

WARNING

Indicates a hazard with a medium or low level of risk which, if 

not avoided, could result in minor or moderate injury.

CAUTION

Indicates a potentially hazardous situation that, if not avoided,

could cause equipment damage, data loss, and performance

degradation, or unexpected results.

TIP Indicates a tip that may help you solve a problem or save your 

time.

NOTE Provides additional information to emphasize or supplement

important points of the main text.

2. General Conventions

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 Terminal display is in Courier New.

3. Command Conventions

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Convention Description

Boldface The keywords of a command line are in boldface.

 ItalicCommand arguments are in

italic.

[ ] Items (keywords or arguments) in square brackets [ ] are optional.

{x | y | ...} Alternative items are grouped in braces and separated by vertical

 bars.One is selected.

[ x | y | ... ] Optional alternative items are grouped in square brackets and

separated by vertical bars.One or none is selected.

{ x | y | ... } * Alternative items are grouped in braces and separated by vertical

 bars.A minimum of one or a maximum of all can be selected.

[ x | y | ... ] * Alternative items are grouped in braces and separated by vertical

 bars.A minimum of zero or a maximum of all can be selected.

4. GUI Conventions

Convention Description

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 .

5. Keyboard Operation

Convention Description

Key Press the key.For example,press Enter and press Tab.

Key1+Key2 Press the keys concurrently.For example,pressing Ctrl+Alt+A

means the three keys should be pressed concurrently.

Key1,Key2 Press the keys in turn.For example,pressing Alt,A means the twokeys should be pressed in turn.

6. Mouse Operation

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.

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Action Description

Drag Press and hold the primary mouse button and move the pointer  

to a certain position.

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1 Introduction to KPI

This describes the KPI, which is used to monitor the network performance and detect network 

 problems.

KPI Attributes

Each KPI has the following attributes:

l Measurement object: indicates the measurement scope of a KPI, such as BSC level, PCU

level, or cell level.

l Measurement set: describes the signaling or algorithm of collecting a KPI, such as call

access and TBF establishment.

l Measurement service: indicates the service type of a KPI, such as CS service or PS service.

Measurement Set

Figure 1-1 shows the measurement set of the CS domain performance counters. Call

measurement and channel measurement are very important. Most of performance counters are

distributed in the two measurement sets.

l Call measurement: refers to the measurement of call services in a BSC.

l Channel measurement: refers to the measurement of various counters related to channels.

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Figure 1-1 Classification of the measurement set of the performance counters in the CS domain

Performance

measurementCall measurement

Channel

measurement

BTS management

measurement

System load

measurement

Paging

measurement

Measurement report

measurement

Resource

measurement

SCCP measurement

MTP3 measurement

LAPD measurement

PCU measurement

MSC measurement

CBC measurement

BSC overallperformance

measurement

Figure 1-2 shows the measurement sets of the performance counters in the PS domain. Cell

 performance measurement is very important. Most of performance counters are distributed in

this measurement set.

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Figure 1-2 KPIs classified by measurement object in the PS

Performance

measurement

BSC overall

performance

measurement

NS performance

measurement

G-Abis interface

performance

measurement

System load

measurement

Cell performance

measurement

CPU performance

measurement

BSSGP performance

measurement

PB interface

performance

measurement

PCU measurement

Classification of KPIs

KPIs that are commonly used in routine monitoring can be classified according to the indicated

 performance.

The CS KPIs can be categorized into the following:

l

Accessibility KPIsl Retainability KPIs

l Resource Utilization KPIs

The PS KPIs can be categorized into the following:

l Throughput KPIs

l Transmission KPIs

l Accessibility KPIs

l Resource utilization KPIs

l Retainability KPIs

l End-to-End Delay KPIs

l End-to-End Quality KPIs

Collection of KPIs

CS KPIs per cell and KPIs per BSC can be viewed and analyzed on the M2000. KPIs can be

exported from the M2000 as .csv, .xls, .html, or .txt files. In addition, CS KPIs per BSC can be

viewed and analyzed through the BSC6000 intelligent report system. KPIs can be exported from

the BSC6000 intelligent report system as .csv, .xls, .html, or .txt files.

PS KPIs, such as Throughput KPIs, Transmission KPIs, Accessibility KPIs, Resource utilization

KPIs, and Retainability KPIs can be viewed and analyzed on the M2000. KPIs can be exportedfrom the M2000 as .csv, .xls, .html, or .txt files.

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In addition, PS KPIs can be set and queried through the OMC traffic console.

End-to-end performance KPIs can be queried through Drive Test and Call Quality Test.

NOTE

The measurement object has time spans, and KPIs are collected on schedule; therefore, KPI collection may span

different periods.

If the KPIs reflect the actual status of the measurement object at a moment, the KPI collection inevitably spans

different periods.

1 Introduction to KPI

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2 CS Accessibility KPIs

About This Chapter

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

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

2.1 Immediate Assignment Success Rate

2.2 SDCCH Congestion Rate(Overflow)

2.3 SDCCH Drop Rate

2.4 TCH Assignment Success Rate

2.5 TCH Attempt Failure Rate Due to No TCH Assignment

2.6 TCH Congestion Rate(Overflow)

2.7 TCH Seizure Success Rate

2.8 Call Establishment Success Rate

2.9 BSS Call Setup Success Rate

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2.1 Immediate Assignment Success Rate

Table 2-1 Immediate Assignment Success Rate

Counter Immediate Assignment Success Rate

Description Immediate Assignment Success Rate = Call Setup Indications (Circuit

Service) / Channel Requests (Circuit Service) x 100%

AssociatedOriginal KPIs

 None

MeasurementPoint

BSC

 

2.2 SDCCH Congestion Rate(Overflow)

Table 2-2 SDCCH Congestion Rate(Overflow)

Counter SDCCH Congestion Rate(Overflow)

Description SDCCH Congestion Rate(Overflow) = Failed SDCCH Seizures due to

Busy SDCCH / SDCCH Seizure Requests x 100%

Associated

Original KPIs

 None

MeasurementPoint

BSC

 

2.3 SDCCH Drop Rate

Table 2-3 SDCCH Drop Rate

Counter SDCCH Drop Rate

Description

SDCCH Drop Rate = Call Drops on SDCCH / Successful SDCCH

Seizures x 100%

AssociatedOriginalKPIs

 None

MeasurementPoint

BSC

 

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2.4 TCH Assignment Success Rate

Table 2-4 TCH Assignment Success Rate

Counter TCH Assignment Success Rate

Description

TCH Assignment Success Rate = Successful Assignments / Assignment

Requests x 100%

Associated OriginalKPIs

 None

Measurement

Point

BSC

 

2.5 TCH Attempt Failure Rate Due to No TCH Assignment

Table 2-5 TCH Attempt Failure Rate Due to No TCH Assignment

Counter TCH Attempt Failure Rate Due to No TCH Assignment

Descriptio

n

TCH Attempt Failure Rate Due to No TCH Assignment = (TCH Seizure

Requests (Signaling Channel) + TCH Seizure Requests (TrafficChannel) + TCH Seizure Requests in TCH Handovers (Traffic

Channel) - Σ(All TRXs of Cells)Successful Channel Assignments (TCH)) /

(TCH Seizure Requests (Signaling Channel) + TCH Seizure Requests

(Traffic Channel) + TCH Seizure Requests in TCH Handovers (Traffic

Channel)) x 100%

Associated OriginalKPIs

 None

Measurem

ent Point

BSC

 

2.6 TCH Congestion Rate(Overflow)

Table 2-6 TCH Congestion Rate(Overflow)

Counter TCH Congestion Rate(Overflow)

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Description TCH Congestion Rate(Overflow) = (Failed TCH Seizures due to Busy

TCH (Signaling Channel) + Failed TCH Seizures due to Busy TCH

(Traffic Channel) + Failed TCH Seizures in TCH Handovers due to

Busy TCH (Traffic Channel)) / (TCH Seizure Requests (Signaling

Channel) + TCH Seizure Requests (Traffic Channel) + TCH SeizureRequests in TCH Handovers (Traffic Channel)) x 100%

AssociatedOriginal KPIs

 None

MeasurementPoint

BSC

 

2.7 TCH Seizure Success Rate

Table 2-7 TCH Seizure Success Rate

Counter TCH Seizure Success Rate

Description

TCH Seizure Success Rate = (Successful TCH Seizures (Signaling

Channel) + Successful TCH Seizures (Traffic Channel) + Successful TCH

Seizures in TCH handovers (Traffic Channel)) / (TCH Seizure Requests

(Signaling Channel) + TCH Seizure Requests (Traffic Channel) + TCH

Seizure Requests in TCH Handovers (Traffic Channel)) x 100%

Associate

d OriginalKPIs

 None

MeasurementPoint

BSC

 

2.8 Call Establishment Success Rate

Table 2-8 Call establishment success rate

Counter Call Establishment Success Rate

Definition Call Establishment Success Rate = Successful Assignments/(SDCCH

Seizures for Speech Service + Call Setup Indications (MOC Non SMS)

(TCHF) + Call Setup Indications (MTC) (TCHF) + Call Setup

Indications (Emergency Call) (TCHF) + Call Setup Indications (Call

Re-establishment) (TCHF) + Call Setup Indications (MOC Non SMS)

(TCHH) + Call Setup Indications (MTC) (TCHH) + Call Setup

Indications (Call Re-establishment) (TCHH)) x 100%

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AssociatedOriginalKPIs

 None.

Measurement Point BSC

 

2.9 BSS Call Setup Success Rate

Table 2-9 BSS Call Setup Success Rate

Counter BSS Call Setup Success Rate

Description BSS Call Setup Success Rate= ((Immediate Assignment Success

Rate x TCH Assignment Success Rate) x (1 - SDCCH Drop Rate)) x

100%

AssociatedOriginal KPIs

 None

MeasurementPoint

BSC

 

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3 CS Retainability KPIs

About This Chapter

This describes the CS Retainability KPIs that indicate the ratio of moving MSs to all MSs, the

moving frequency, and the success rate of handovers on the move. In addition, these KPIs

indicate the capability of providing continuous services. A low handover success rate may lead

to a high call drop rate. A low success rate leads to low user satisfaction.

3.1 TCH Call Drop Rate(including Handovers)

3.2 TCH Call Drop Rate (Excluding Handover)

3.3 Traffice Volume to Call Drops

3.4 TCH RF Lost Rate

3.5 TCH Handover Lost Rate

3.6 Handover Success Rate

3.7 Handover RF Success Rate

3.8 Intra-BSC Handover Success Rate

3.9 Inter-BSC Incoming Cell Handover Success Rate

3.10 Inter-BSC Outgoing Cell Handover Success Rate

3.11 Intra-BSC Handover RF Success Rate

3.12 Inter-BSC Incoming Cell Radio Handover Success Rate

3.13 Inter-BSC Outgoing Cell Radio Handover Success Rate

3.14 Dual-Band Handover Success Rate(900/850-1800/1900)

3.15 Dual-Band Handover Success Rate(1800/1900-900/850)

3.16 Call Success Rate

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3.1 TCH Call Drop Rate(including Handovers)

Table 3-1 TCH Call Drop Rate(including Handovers）

Counter TCH Call Drop Rate(including Handovers）

Description

TCH Call Drop Rate(including Handovers) = Call Drops on TCH /

(Successful TCH Seizures (Signaling Channel) + Successful TCH

Seizures (Traffic Channel) + Successful TCH Seizures in TCH handovers

(Traffic Channel)) x 100%

AssociatedOriginalKPIs

 None

Measurement Point

BSC

 

3.2 TCH Call Drop Rate (Excluding Handover)

Table 3-2 TCH call drop rate (excluding handover)

Counter TCH Call Drop Rate (Excluding Handover)

Description TCH Call Drop Rate (Excluding Handover) = Call Drops on TCH /(Successful TCH Seizures (Traffic Channel) + Successful Incoming

Internal Inter-Cell Handovers + Successful External Incoming Cell

Handovers - Successful Outgoing Internal Inter-Cell Handovers -

Successful Outgoing External Inter-Cell Handovers) x 100%

AssociatedOriginal KPIs

 None.

MeasurementPoint

BSC

 

3.3 Traffice Volume to Call Drops

Table 3-3 Traffice Volume to Call Drops

Counter Traffice Volume to Call Drops

Description Traffice Volume to Call Drops = 60 x Traffic Volume of TCHs / Call Drops

on TCH

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AssociatedOriginalKPIs

 None

Measurement Point BSC

 

3.4 TCH RF Lost Rate

Table 3-4 TCH RF Lost Rate

Counter TCH RF Lost Rate

Description

TCH RF Lost Rate = (Call Drops on Radio Interface in Stable State (Traffic

Channel) + Call Drops on Radio Interface in Stable State (TCH Qua

Signaling Channel)) / (Successful TCH Seizures (Signaling Channel) +

Successful TCH Seizures (Traffic Channel) + Successful TCH Seizures in

TCH Handovers (Traffic Channel)) x 100%

Associated OriginalKPIs

 None

MeasurementPoint

BSC

 

3.5 TCH Handover Lost Rate

Table 3-5 TCH Handover Lost Rate

Counter TCH Handover Lost Rate

Description TCH Handover Lost Rate = (Handover Drop Rate of TCH + Call

Drops in TCH Handovers (Traffic Channel)) / (Successful TCH

Seizures (Signaling Channel) + Successful TCH Seizures (TrafficChannel) + Successful TCH Seizures in TCH Handovers (Traffic

Channel)) x 100%

AssociatedOriginal KPIs

 None

MeasurementPoint

BSC

 

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3.6 Handover Success Rate

Table 3-6 Handover success rate

Counter Handover Success Rate

Description Handover Success Rate = (Successful Outgoing Internal Inter-Cell

Handovers + Successful External Outgoing Cell Handovers) /

(Outgoing Internal Inter-Cell Handover Requests + Outgoing

External Inter-Cell Handover Requests ) x 100%

AssociatedOriginal KPIs

 None.

MeasurementPoint

BSC

 

3.7 Handover RF Success Rate

Table 3-7 Handover RF Success Rate

Counter Handover RF Success Rate

Description Handover RF Success Rate = (Successful Outgoing Internal Inter-CellHandover + Successful Outgoing External Inter-Cell Handovers) /

(Outgoing Internal Inter-Cell Handover Commands + Outgoing External

Inter-Cell Handover Commands) x 100%

Associated OriginalKPIs

 None

Measurement Point

BSC

 

3.8 Intra-BSC Handover Success Rate

Table 3-8 Intra-BSC Handover Success Rate

Counter Intra-BSC Handover Success Rate

Description Intra-BSC Handover Success Rate = (Successful Internal Intra-Cell

Handovers + Successful Incoming Internal Inter-Cell

Handovers) / (Internal Intra-Cell Handover Requests + Incoming

Internal Inter-Cell Handover Requests） x 100%

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AssociatedOriginal KPIs

 None

Measurement

Point

BSC

 

3.9 Inter-BSC Incoming Cell Handover Success Rate

Table 3-9 Inter-BSC Incoming Cell Handover Success Rate

Counter Inter-BSC Incoming Cell Handover Success Rate

Description Inter-BSC Incoming Cell Handover Success Rate = Successful

Incoming External Inter-Cell Handovers / Incoming External

Inter-Cell Handover Requests x 100%

AssociatedOriginal KPIs

 None

MeasurementPoint

BSC

 

3.10 Inter-BSC Outgoing Cell Handover Success Rate

Table 3-10 Inter-BSC Outgoing Cell Handover Success Rate

Counter Inter-BSC Outgoing Cell Handover Success Rate

Description Inter-BSC Outgoing Cell Handover Success Rate = Successful

Outgoing External Inter-Cell Handovers / Outgoing External

Inter-Cell Handover Requests x 100%

Associated OriginalKPIs

 None

Measurement Point BSC

 

3.11 Intra-BSC Handover RF Success Rate

Table 3-11 Intra-BSC Handover RF Success Rate

Counter Intra-BSC Handover RF Success Rate

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Description Intra-BSC Handover RF Success Rate = (Successful Internal Intra-Cell

Handovers + Successful Incoming Internal Inter-Cell Handovers) /

(Internal Intra-Cell Handover Commands + Incoming Internal Inter-

Cell Handover Responses) x 100%

AssociatedOriginalKPIs

 None

Measurement Point

BSC

 

3.12 Inter-BSC Incoming Cell Radio Handover Success Rate

Table 3-12 Inter-BSC Incoming Cell Radio Handover Success Rate

Counter Inter-BSC Incoming Cell Radio Handover Success Rate

Description Inter-BSC Incoming Cell Radio Handover Success Rate = Successful

Incoming External Inter-Cell Handovers / Incoming External Inter-Cell

Handover Responses x 100%

AssociatedOriginalKPIs

 None

Measurement Point BSC

 

3.13 Inter-BSC Outgoing Cell Radio Handover Success Rate

Table 3-13 Inter-BSC Outgoing Cell Radio Handover Success Rate

Counter Inter-BSC Outgoing Cell Radio Handover Success Rate

DescriptionInter-BSC Outgoing Cell Radio Handover Success Rate = Successful

Outgoing External Inter-Cell Handovers / Outgoing External Inter-Cell

Handover Commands x 100%

AssociatedOriginalKPIs

 None

Measurement Point

BSC

 

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3.14 Dual-Band Handover Success Rate(900/850-1800/1900)

Table 3-14 Dual-Band Handover Success Rate(900/850-1800/1900)

Counter Dual-Band Handover Success Rate(900/850-1800/1900)

Description

Dual-Band Handover Success Rate(900/850-1800/1900) = Successful Dual-

Band Handovers (900M/850M-1800M/1900M) / Dual-Band Handover 

Requests (900M/850M-1800M/1900M) x 100%

AssociatedOriginalKPIs

Successful Dual-Band Handovers (900M/850M-1800M/1900M) =

Incoming Internal Inter-Cell Handover Requests (SDCCH)

(900/850-1800/1900) + Incoming Internal Inter-Cell Handover Requests

(TCH) (900/850-1800/1900) + Incoming External Inter-Cell Handover

Requests (SDCCH) (900/850-1800/1900) + Incoming External Inter-Cell

Handover Requests (TCH) (900/850-1800/1900) + Outgoing External

Inter-Cell Handover Requests (SDCCH) (Excluding Directed Retry)

(900/850-1800/1900) + Outgoing External Inter-Cell Handover Requests

(TCHF) (Excluding Directed Retry) (900/850-1800/1900) + Outgoing

External Inter-Cell Handover Requests (TCHH) (Excluding Directed

Retry) (900/850-1800/1900) + Outgoing External Inter-Cell Handover

Requests (Directed Retry) (900/850-1800/1900) - (Failed Incoming

Internal Inter-Cell Handovers (SDCCH) (900/850-1800/1900) + Failed

Incoming Internal Inter-Cell Handovers (TCH) (900/850-1800/1900) +

Failed Incoming External Inter-Cell Handovers (SDCCH)

(900/850-1800/1900) + Failed Incoming External Inter-Cell Handovers

(TCH) (900/850-1800/1900) + Failed Outgoing External Inter-CellHandovers (SDCCH) (900/850-1800/1900) + Failed Outgoing External

Inter-Cell Handovers (TCHF) (900/850-1800/1900) + Failed Outgoing

External Inter-Cell Handovers (TCHH) (900/850-1800/1900) + Failed

Outgoing External Inter-Cell Handovers (Directed Retry)

(900/850-1800/1900))

Dual-Band Handover Requests (900M/850M-1800M/1900M) = Incoming

Internal Inter-Cell Handover Requests (SDCCH) (900/850-1800/1900) +

Incoming Internal Inter-Cell Handover Requests (TCH)

(900/850-1800/1900) + Incoming External Inter-Cell Handover Requests

(SDCCH) (900/850-1800/1900) + Incoming External Inter-Cell

Handover Requests (TCH) (900/850-1800/1900) + Outgoing External

Inter-Cell Handover Requests (SDCCH) (Excluding Directed Retry)(900/850-1800/1900) + Outgoing External Inter-Cell Handover Requests

(TCHF) (Excluding Directed Retry) (900/850-1800/1900) + Outgoing

External Inter-Cell Handover Requests (TCHH) (Excluding Directed

Retry) (900/850-1800/1900) + Outgoing External Inter-Cell Handover

Requests (Directed Retry) (900/850-1800/1900)

Measurement Point

BSC

 

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3.15 Dual-Band Handover Success Rate(1800/1900-900/850)

Table 3-15 Dual-Band Handover Success Rate (1800/1900-900/850)

Counter Dual-Band Handover Success Rate (1800/1900-900/850)

Description Dual-Band Handover Success Rate (1800/1900-900/850) =

(Successful Dual-Band Handovers (1800M/1900M-900M/850M) /

Dual-Band Handover Requests (1800M/1900M-900M/850M) x 100%

AssociatedOriginal KPIs

Successful Dual-Band Handovers (1800M/1900M–900M/850M) =

Incoming Internal Inter-Cell Handover Requests (SDCCH)

(1800/1900-900/850) + Incoming Internal Inter-Cell Handover

Requests (TCH) (1800/1900-900/850) + Incoming External Inter-

Cell Handover Requests (SDCCH) (1800/1900-900/850) +

Incoming External Inter-Cell Handover Requests (TCH)

(1800/1900-900/850) + Outgoing External Inter-Cell Handover

Requests (SDCCH) (Excluding Directed Retry)

(1800/1900-900/850) + Outgoing External Inter-Cell Handover

Requests (TCHF) (Excluding Directed Retry)

(1800/1900-900/850) + Outgoing External Inter-Cell Handover

Requests (TCHH) (Excluding Directed Retry)

(1800/1900-900/850) + Outgoing External Inter-Cell Handover

Requests (Directed Retry) (1800/1900-900/850) - (Failed Incoming

Internal Inter-Cell Handovers (SDCCH) (1800/1900-900/850) +

Failed Incoming Internal Inter-Cell Handovers (TCH)

(1800/1900-900/850) + Failed Incoming External Inter-CellHandovers (SDCCH) (1800/1900-900/850) + Failed Incoming

External Inter-Cell Handovers (TCH) (1800/1900-900/850) +

Failed Outgoing External Inter-Cell Handovers (SDCCH)

(1800/1900-900/850) + Failed Outgoing External Inter-Cell

Handovers (TCHF) (1800/1900-900/850) + Failed Outgoing

External Inter-Cell Handovers (TCHH) (1800/1900-900/850) +

Failed Outgoing External Inter-Cell Handovers (Directed Retry)

(1800/1900-900/850))

Dual-Band Handover Requests (1800M/1900M-900M/850M) =

Incoming Internal Inter-Cell Handover Requests (SDCCH)

(1800/1900-900/850) + Incoming Internal Inter-Cell Handover

Requests (TCH) (1800/1900-900/850) + Incoming External Inter-Cell Handover Requests (SDCCH) (1800/1900-900/850) +

Incoming External Inter-Cell Handover Requests (TCH)

(1800/1900-900/850) + Outgoing External Inter-Cell Handover

Requests (SDCCH) (Excluding Directed Retry)

(1800/1900-900/850) + Outgoing External Inter-Cell Handover

Requests (TCHF) (Excluding Directed Retry)

(1800/1900-900/850) + Outgoing External Inter-Cell Handover

Requests (TCHH) (Excluding Directed Retry)

(1800/1900-900/850) + Outgoing External Inter-Cell Handover

Requests (Directed Retry) (1800/1900-900/850)

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MeasurementPoint

BSC

 

3.16 Call Success Rate

Table 3-16 Call Success Rate

Counter Call Success Rate

Description Call Success Rate = SDCCH Congestion Rate(Overflow) x (1-

SDCCH Drop Rate) x (1 - TCH Attempt Failure Rate Due to No

TCH Assignment) x (1-TCH Call Drop Rate（including

Handovers）) x 100%

AssociatedOriginal KPIs

 None

MeasurementPoint

BSC

 

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4 CS Resource Utilization KPIs

About This Chapter

This describes the CS Resource Utilization KPIs that are used to monitor the load of hot cells

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

KPIs help to obtain the ratio of busy-hour traffic to idle-hour traffic, to evaluate the utilization

of system resources, and to adjust charges. The equipment availability KPIs help to know the

running status of equipment, such as the running status of channels. If these KPIs are low,

equipment and transmission may be faulty.

4.1 TCH Traffic Volume

4.2 SDCCH Traffic Volume

4.3 TCHH Traffic Volume

4.4 TCH Availablity

4.5 TRX Availability

4.6 SDCCH Availability

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4.1 TCH Traffic Volume

Table 4-1 TCH Traffic Volume

Counter TCH Traffic Volume

Description TCH Traffic Volume = Mean Number of Busy TCHs (TCHF) (900/850

Cell) + Mean Number of Busy TCHs (TCHF) (1800/1900 Cell) + Mean

Number of Busy TCHs (TCHH) (900/850 Cell) + Mean Number of 

Busy TCHs (TCHH) (1800/1900 Cell)

AssociatedOriginal KPIs

 None

MeasurementPoint

BSC

 

4.2 SDCCH Traffic Volume

Table 4-2 SDCCH Traffic Volume

Counter SDCCH Traffic Volume

Description SDCCH Traffic Volume = (Mean Number of Busy Signaling Channels(SDCCH) (900/850 Cell) + Mean Number of Busy Signaling Channels

(SDCCH) (1800/1900 Cell)) / Number of Samples to Scan SDCCH States

AssociatedOriginalKPIs

 None

Measurement Point

BSC

 

4.3 TCHH Traffic Volume

Table 4-3 TCHH Traffic Volume

Counter TCHH Traffic Volume

Description TCHH Traffic Volume = Mean Number of Busy TCHs (TCHH)

(900/850 Cell) + Mean Number of Busy TCHs (TCHH) (1800/1900

Cell)

Associated

Original KPIs

 None

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MeasurementPoint

BSC

 

4.4 TCH Availablity

Table 4-4 TCH Availablity

Counter TCH Availablity

Description TCH Availablity = Mean Number of Available Channels (TCH) /

Mean Number of Dynamically Configured Channels (TCH) x 100%

AssociatedOriginal KPIs

 None

MeasurementPoint

BSC

 

4.5 TRX Availability

Table 4-5 TRX Availability

Counter TRX Availability

NOTEThe TRX Availability helps to calculate the number of the available TRXs in the

BM.

Description TRX Availability = Available TRXs / Activated TRXs x 100%

AssociatedOriginal KPIs

 None

MeasurementPoint

BSC

 

4.6 SDCCH Availability

Table 4-6 SDCCH Availability

Counter SDCCH Availability

Description SDCCH Availability = Mean Number of Available Channels (SDCCH) /

Mean Number of Dynamically Configured Channels (SDCCH) x 100%

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AssociatedOriginalKPIs

Mean Number of Available Channels (SDCCH) = (Total Number of 

Available Channels (SDCCH) (900/850 MHz Cell) + Total Number of 

Available Channels (SDCCH) (1800/1900 MHz Cell)) / Sampled Number 

of Channel State

Mean Number of Dynamically Configured Channels (SDCCH) = (Number of Dynamically Configured Channels (SDCCH) (900/850 Cell) + Number 

of Dynamically Configured Channels (SDCCH) (1800/1900 Cell)) /

Sampled Number of Channel State

Measurement Point

BSC

 

4 CS Resource Utilization KPIs

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5 PS Throughput KPIs

About This Chapter

This describes the PS Throughput KPIs that are used to monitor the load of hot cells and the

network and to obtain service models. These KPIs can serve as references for capacity expansion.

The PS Throughput KPIs help to obtain the busy-hour PS traffic and the idle-hour PS traffic, to

evaluate the utilization of system resources, and to facilitate service assessment of carriers.

5.1 Uplink RLC Payload

5.2 Downlink RLC Payload

5.3 Uplink EGPRS RLC Payload

5.4 Downlink EGPRS RLC Payload

5.5 Mean payload (kbytes) of the uplink data at the LLC layer 

5.6 Mean payload (kbytes) of the downlink data at the LLC layer 

5.7 Mean Downlink NS_PDUs throughput

5.8 Packet data rate on air interface

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5.1 Uplink RLC Payload

Table 5-1 Uplink RLC Payload

Counter Uplink RLC Payload

Description Uplink RLC Payload = Total bytes of uplink GPRS RLC data blocks x

8 / 1024

AssociatedOriginal KPIs

Total bytes of uplink GPRS RLC data blocks = Total Number of Uplink 

RLC Data Blocks Using CS1 x 23 + Total Number of Uplink RLC

Data Blocks Using CS2 x 34 + Total Number of Uplink RLC Data

Blocks Using CS3 x 40 + Total Number of Uplink RLC Data Blocks

Using CS4 x 54

MeasurementPoint

BSC

 

5.2 Downlink RLC Payload

Table 5-2 Downlink RLC Payload

Counter Downlink RLC Payload

Description Downlink RLC Payload = Total bytes of downlink GPRS RLC data blocks x 8 / 1024

AssociatedOriginal KPIs

Total bytes of downlink GPRS RLC data blocks = Total Number of 

Downlink RLC Data Blocks Using CS1 x 23 + Total Number of 

Downlink RLC Data Blocks Using CS2 x 34 + Total Number of 

Downlink RLC Data Blocks Using CS3 x 40 + Total Number of 

Downlink RLC Data Blocks Using CS4 x 54

MeasurementPoint

BSC

 

5.3 Uplink EGPRS RLC Payload

Table 5-3 Uplink EGPRS RLC Payload

Counter Uplink EGPRS RLC Payload

Description Uplink EGPRS RLC Payload = Total bytes of uplink EGPRS RLC data

 blocks x 8 / 1024

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AssociatedOriginal KPIs

Total bytes of uplink EGPRS RLC data blocks = Total Number of 

Uplink EGPRS MCS1 RLC Data Blocks x 22 + Total Number of 

Uplink EGPRS MCS2 RLC Data Blocks x 28 + Total Number of 

Uplink EGPRS MCS3 RLC Data Blocks x 37 + Total Number of 

Uplink EGPRS MCS4 RLC Data Blocks x 44 + Total Number of Uplink EGPRS MCS5 RLC Data Blocks x 56 + Total Number of 

Uplink EGPRS MCS6 RLC Data Blocks x 74 + Total Number of 

Uplink EGPRS MCS7 RLC Data Blocks x 56 + Total Number of 

Uplink EGPRS MCS8 RLC Data Blocks x 68 + Total Number of 

Uplink EGPRS MCS9 RLC Data Blocks x 74

MeasurementPoint

BSC

 

5.4 Downlink EGPRS RLC Payload

Table 5-4 Downlink EGPRS RLC Payload

Counter Downlink EGPRS RLC Payload

Description Downlink EGPRS RLC Payload = Total bytes of downlink EGPRS RLC

data blocks x 8 / 1024

AssociatedOriginal KPIs

Total bytes of downlink EGPRS RLC data blocks = Total Number of 

Downlink EGPRS MCS1 RLC Data Blocks x 22 + Total Number of 

Downlink EGPRS MCS2 RLC Data Blocks x 28 + Total Number of 

Downlink EGPRS MCS3 RLC Data Blocks x 37 + Total Number of 

Downlink EGPRS MCS4 RLC Data Blocks x 44 + Total Number of 

Downlink EGPRS MCS5 RLC Data Blocks x 56 + Total Number of 

Downlink EGPRS MCS6 RLC data blocks x 74 + Total Number of 

Downlink EGPRS MCS7 RLC Data Blocks x 56 + Total Number of 

Downlink EGPRS MCS8 RLC Data Blocks x 68 + Total Number of 

Downlink EGPRS MCS9 RLC Data Blocks x 74

MeasurementPoint

BSC

 

5.5 Mean payload (kbytes) of the uplink data at the LLClayer

Table 5-5 Mean payload (kbytes) of the uplink data at the LLC layer 

Counter Mean payload (kbytes) of the uplink data at the LLC layer 

Description Mean payload (kbytes) of the uplink data at the LLC layer = Total Bytes

of Uplink LLC PDUs Sent x 8 / 1024

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AssociatedOriginal KPIs

 None

Measurement

Point

BSC

 

5.6 Mean payload (kbytes) of the downlink data at the LLClayer

Table 5-6 Mean payload (kbytes) of the downlink data at the LLC layer 

Counter Mean payload (kbytes) of the downlink data at the LLC layer 

Description Mean payload (kbytes) of the downlink data at the LLC layer = TotalBytes of LLC PDUs Sent x 8 / 1024

AssociatedOriginal KPIs

 None

MeasurementPoint

BSC

 

5.7 Mean Downlink NS_PDUs throughputTable 5-7 Mean Downlink NS_PDUs throughput

Counter Mean Downlink NS_PDUs throughput

Description Mean Downlink NS_PDUs throughput = Total Bytes of NS PDUs Sent

by NS Sublayer (NSVC) x 8 / (1024 x measurement period x 60)

AssociatedOriginal KPIs

 None

Measurement

Point

BSC

 

5.8 Packet data rate on air interface

Table 5-8 Packet data rate on air interface

Counter Packet data rate on air interface

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Description Packet data rate on air interface = (Uplink RLC Payload + Uplink 

EGPRS RLC Payload) / (Downlink RLC Payload + Downlink 

EGPRS RLC Payload)

AssociatedOriginal KPIs  None

MeasurementPoint

BSC

 

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6 PS Transmission KPIs

About This Chapter

This describes the PS Transmission 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.

6.1 Uplink RLC Data Retransmission Rate

6.2 Downlink RLC Data Retransmission Rate

6.3 Uplink EGPRS RLC Data Retransmission Rate

6.4 Downlink EGPRS RLC Data Retransmission Rate

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6.1 Uplink RLC Data Retransmission Rate

Table 6-1 Uplink RLC Data Retransmission Rate

Counter Uplink RLC Data Retransmission Rate

Description Uplink RLC Data Retransmission Rate =Number of uplink RLC data

 blocks received by the BSS / Number of uplink RLC data blocks sent by

the MS x 100%

AssociatedOriginal KPIs

 Number of uplink RLC data blocks received by the BSS = Number of 

Valid Uplink RLC Data Blocks Using CS1 + Number of Valid Uplink 

RLC Data Blocks Using CS2 + Number of Valid Uplink RLC Data

Blocks Using CS3 + Number of Valid Uplink RLC Data Blocks Using

CS4

 Number of uplink RLC data blocks sent by the MS = Total Number of 

Uplink GPRS RLC Data Blocks

MeasurementPoint

BSC

 

6.2 Downlink RLC Data Retransmission Rate

Table 6-2 Downlink RLC Data Retransmission Rate

Counter Downlink RLC Data Retransmission Rat (%)

Description Downlink RLC Data Retransmission Rate = Number of Downlink RLC

Data Blocks received by the MS / Number of Downlink RLC Data

Blocks sent by the BSS x 100%

AssociatedOriginal KPIs

 Number of Downlink RLC Data Blocks received by the MS = Total

Number of Valid RLC Downlink Data Blocks Using CS1 + Total

Number of Valid RLC Downlink Data Blocks Using CS2 + Total

Number of Valid RLC Downlink Data Blocks Using CS3 + Total

Number of Valid RLC Downlink Data Block Using CS4

 Number of Downlink RLC Data Blocks sent by the BSS = Total

Number of Downlink GPRS RLC Data Blocks

MeasurementPoint

BSC

 

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6.3 Uplink EGPRS RLC Data Retransmission Rate

Table 6-3 Uplink EGPRS RLC Data Retransmission Rate

Counter Uplink EGPRS RLC Data Retransmission Rate

Description Uplink EGPRS RLC Data Retransmission Rate = Number of Uplink 

EGPRS RLC Data Blocks received by the BSS / Number of Uplink 

EGPRS RLC Data Blocks sent by the MS x 100%

AssociatedOriginal KPIs

 Number of Uplink EGPRS RLC Data Blocks received by the BSS =

Total Number of Valid Uplink EGPRS MCS1 RLC Data Blocks +

Total Number of Valid Uplink EGPRS MCS2 RLC Data Blocks +

Total Number of Valid Uplink EGPRS MCS3 RLC Data Blocks +

Total Number of Valid Uplink EGPRS MCS4 RLC Data Blocks +

Total Number of Valid Uplink EGPRS MCS5 RLC Data Blocks +

Total Number of Valid Uplink EGPRS MCS6 RLC Data Blocks +

Total Number of Valid Uplink EGPRS MCS7 RLC Data Blocks +

Total Number of Valid Uplink EGPRS MCS8 RLC Data Blocks +

Total Number of Valid Uplink EGPRS MCS9 RLC Data Blocks

 Number of Uplink EGPRS RLC Data Blocks sent by the MS = Total

Number of Uplink EGPRS RLC Data Blocks

MeasurementPoint

BSC

 

6.4 Downlink EGPRS RLC Data Retransmission Rate

Table 6-4 Downlink EGPRS RLC Data Retransmission Rate

Counter Downlink EGPRS RLC Data Retransmission Rate

Description Downlink EGPRS RLC Data Retransmission Rate = Number of 

Downlink EGPRS RLC Data Blocks received by the MS / Number of 

Downlink EGPRS RLC Data Blocks sent by the BSS x 100%

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AssociatedOriginal KPIs

 Number of Downlink EGPRS RLC Data Blocks received by the MS =

Total Number of Valid Downlink EGPRS MCS1 RLC Data

Blocks + Total Number of Valid Downlink EGPRS MCS2 RLC Data

Blocks + Total Number of Valid Downlink EGPRS MCS3 RLC Data

Blocks + Total Number of Valid Downlink EGPRS MCS4 RLC DataBlocks + Total Number of Valid Downlink EGPRS MCS5 RLC Data

Blocks + Total Number of Valid Downlink EGPRS MCS6 RLC Data

Blocks + Total Number of Valid Downlink EGPRS MCS7 RLC Data

Blocks + Total Number of Valid Downlink EGPRS MCS8 RLC Data

Blocks + Total Number of Valid Downlink EGPRS MCS9 RLC Data

Blocks

 Number of Downlink EGPRS RLC Data Blocks sent by the BSS = Total

Number of Downlink EGPRS RLC Data Blocks

MeasurementPoint

BSC

 

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7 PS Accessibility KPIs

About This Chapter

This describes the PS Accessibility KPIs that indicate whether MSs can easily access cells. Poor 

PS Accessibility KPIs directly affect user satisfaction.

7.1 Uplink Assignment Success Rate

7.2 Downlink Assignment Success Rate

7.3 Uplink EGPRS Assignment Success Rate

7.4 Downlink EGPRS Assignment Success Rate

7.5 Mean inter-arrival time of packet access requests on CCCH

7.6 Uplink GPRS TBF Congestion Rate

7.7 Downlink GPRS TBF Congestion Rate

7.8 Uplink EGPRS TBF Congestion Rate

7.9 Downlink EGPRS TBF Congestion Rate

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7.1 Uplink Assignment Success Rate

Table 7-1 Uplink Assignment Success Rate

Counter Uplink Assignment Success Rate

Description Uplink Assignment Success Rate = Number of Successful Uplink TBF

Establishment / Number of Uplink TBF Establishment Attempts x 100%

AssociatedOriginal KPIs

 Number of Successful Uplink TBF Establishment = Number of 

Successful Uplink GPRS TBF Establishments + Number of 

Successful Uplink EGPRS TBF Establishments

 Number of Uplink TBF Establishment Attempts = Number of Uplink 

GPRS TBF Establishment Attempts + Number of Uplink EGPRS

TBF Establishment Attempts

MeasurementPoint

BSC

 

7.2 Downlink Assignment Success Rate

Table 7-2 Downlink Assignment Success Rate

Counter Downlink Assignment Success Rate

Description Downlink Assignment Success Rate = Number of Successful Downlink 

TBF Establishment/ Number of Downlink TBF Establishment Attempts

x 100%

AssociatedOriginal KPIs

 Number of Successful Downlink TBF Establishment= Number of 

Successful Downlink GPRS TBF Establishments + Number of 

Successful Downlink EGPRS TBF Establishments

 Number of Downlink TBF Establishment Attempts = Number of 

Downlink GPRS TBF Establishment Attempts + Number of 

Downlink EGPRS TBF Establishment Attempts

MeasurementPoint

BSC

 

7.3 Uplink EGPRS Assignment Success Rate

Table 7-3 Uplink EGPRS Assignment Success Rate

Counter Uplink EGPRS Assignment Success Rate

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Description

Uplink EGPRS Assignment Success Rate = Number of Successful Uplink 

EGPRS TBF Establishments/Number of Uplink EGPRS TBF

Establishment Attempts x 100%

AssociatedOriginalKPIs

 None

Measurement Point

BSC

 

7.4 Downlink EGPRS Assignment Success Rate

Table 7-4 Downlink EGPRS Assignment Success Rate

Counter Downlink EGPRS Assignment Success Rate

Description

Downlink EGPRS Assignment Success Rate = Number of Successful

Downlink EGPRS TBF Establishments/Number of Downlink EGPRS

TBF Establishment Attempts x 100%

AssociatedOriginalKPIs

 None

Measurem

ent Point

BSC

 

7.5 Mean inter-arrival time of packet access requests onCCCH

Table 7-5 Mean inter-arrival time of packet access requests on CCCH

Counter Mean inter-arrival time of packet access requests on CCCH

Description Mean inter-arrival time of packet access requests on CCCH (s) =Average Interval of Packet Access Requests on CCCH (s)

AssociatedOriginal KPIs

 None

MeasurementPoint

BSC

 

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7.6 Uplink GPRS TBF Congestion Rate

Table 7-6 Uplink GPRS TBF Congestion Rate

Counter Uplink GPRS TBF Congestion Rate

Description Uplink GPRS TBF Congestion Rate = Number of Uplink TBF

Establishment Failures due to No Channel / Number of Uplink TBF

Establishment Attempts x 100%

AssociatedOriginal KPIs

 Number of Uplink TBF Establishment Failures due to No Channel =

Number of Failed Uplink GPRS TBF Establishments due to No

Channel + Number of Failed Uplink EGPRS TBF Establishments

due to No Channel

 Number of Uplink TBF Establishment Attempts = Number of Uplink GPRS TBF Establishment Attempts + Number of Uplink EGPRS

TBF Establishment Attempts

MeasurementPoint

BSC

 

7.7 Downlink GPRS TBF Congestion Rate

Table 7-7 Downlink GPRS TBF Congestion Rate

Counter Downlink GPRS TBF Congestion Rate

Description Downlink GPRS TBF Congestion Rate = Number of Downlink TBF

Establishment Failures due to No Channel / Number of Downlink TBF

Establishment Attempts x 100%

AssociatedOriginal KPIs

 Number of Downlink TBF Establishment Failures due to No Channel =

Number of Failed Downlink GPRS TBF Establishments due to No

Channel+ Number of Failed Downlink EGPRS TBF Establishments

due to No Channel

 Number of Downlink TBF Establishment Attempts = Number of 

Downlink GPRS TBF Establishment Attempts + Number of 

Downlink EGPRS TBF Establishment Attempts

MeasurementPoint

BSC

 

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7.8 Uplink EGPRS TBF Congestion Rate

Table 7-8 Uplink EGPRS TBF Congestion Rate

Counter Uplink EGPRS TBF Congestion Rate

Description Uplink EGPRS TBF Congestion Rate = Number of Failed Uplink 

EGPRS TBF Establishments due to No Channel / Number of Uplink 

EGPRS TBF Establishment Attempts x 100%

AssociatedOriginal KPIs

 None

MeasurementPoint

BSC

 

7.9 Downlink EGPRS TBF Congestion Rate

Table 7-9 Downlink EGPRS TBF Congestion Rate

Counter Downlink EGPRS TBF Congestion Rate

Description Downlink EGPRS TBF Congestion Rate = Number of Failed

Downlink EGPRS TBF Establishments due to No Channel / Number

of Downlink EGPRS TBF Establishment Attempts x 100%

AssociatedOriginal KPIs

 None

MeasurementPoint

BSC

 

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8 PS Resource Utilization KPIs

About This Chapter

This describes the PS Resource Utilization KPIs that indicate the utilization of the network 

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

expansion.

8.1 Uplink PDTCH/PACCH utilization rate

8.2 Downlink PDTCH/PACCH utilization rate

8.3 PDCH occupation rate

8.4 Pre-empted Dynamic PDCH Carrying Packet Traffic Reclaimed SuccessRate

8.5 PDCH Allocation Success Rate

8.6 Downlink RLC Data Throughput Per PDCH

8.7 Uplink RLC Data Throughput Per PDCH

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8.1 Uplink PDTCH/PACCH utilization rate

Table 8-1 Uplink PDTCH/PACCH utilization rate

Counter Uplink PDTCH/PACCH utilization rate

Description Uplink PDTCH/PACCH utilization rate = Number of RLC Data

Blocks Received on Uplink PDTCH/PACCH / Total Number of 

Uplink PDTCH/PACCH Blocks x 100%

AssociatedOriginal KPIs

 None

MeasurementPoint

BSC

 

8.2 Downlink PDTCH/PACCH utilization rate

Table 8-2 Downlink PDTCH/PACCH utilization rate

Counter Downlink PDTCH/PACCH utilization rate

Description Downlink PDTCH/PACCH utilization rate = Number of RLC Data

Blocks Sent on Downlink PDTCH/PACCH / Total Number of 

Downlink PDTCH/PACCH Blocks x 100%

AssociatedOriginal KPIs

 None

MeasurementPoint

BSC

 

8.3 PDCH occupation rate

Table 8-3 PDCH occupation rate

Counter PDCH occupation rate

Description PDCH occupation rate = Average Number of Occupied PDCHs /

Average Number of Available PDCHs x 100%

AssociatedOriginal KPIs

 None

MeasurementPoint

BSC

 

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8.4 Pre-empted Dynamic PDCH Carrying Packet Traffic

Reclaimed SuccessRateTable 8-4 Pre-empted Dynamic PDCH Carrying Packet Traffic Reclaimed SuccessRate

CounterPre-empted Dynamic PDCH Carrying Packet Traffic Reclaimed

SuccessRate

Description Pre-empted Dynamic PDCH Carrying Packet Traffic Reclaimed

SuccessRate = Number of Reclaimed Busy Dynamic PDCHs /

Number of Reclaimed Dynamic PDCHs x 100%

AssociatedOriginal KPIs

 None

MeasurementPoint

BSC

 

8.5 PDCH Allocation Success Rate

Table 8-5 PDCH Allocation Success Rate

Counter PDCH Allocation Success Rate

Description PDCH Allocation Success Rate = Number of GPRS&EGPRS TBF

Establishment Failures due to MS No Response / Number of 

GPRS&EGPRS TBF Establishment Attempts x 100%

AssociatedOriginal KPIs

 Number of GPRS&EGPRS TBF Establishment Failures due to MS No

Response = Number of Failed Uplink GPRS TBF Establishments due

to MS No Response + Number of Failed Downlink GPRS TBF

Establishments due to MS No Response + Number of Failed Uplink 

EGPRS TBF Establishments due to MS No Response + Number of 

Failed Downlink EGPRS TBF Establishments due to MS No

Response

 Number of GPRS&EGPRS TBF Establishment Attempts = Number of Uplink GPRS TBF Establishment Attempts + Number of Downlink 

GPRS TBF Establishment Attempts + Number of Uplink EGPRS

TBF Establishment Attempts + Number of Downlink EGPRS TBF

Establishment Attempts

MeasurementPoint

BSC

 

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8.6 Downlink RLC Data Throughput Per PDCH

Table 8-6 Downlink RLC Data Throughput Per PDCH

Counter Downlink RLC Data Throughput Per PDCH

Description Downlink RLC Data Throughput Per PDCH = (Downlink RLC

Payload + Downlink EGPRS RLC Payload) / (measurement period x

60) / Average Number of PDCHs Occupied by Downlink TBF

AssociatedOriginal KPIs

 None

MeasurementPoint

BSC

 

8.7 Uplink RLC Data Throughput Per PDCH

Table 8-7 Uplink RLC Data Throughput Per PDCH

Counter Uplink RLC Data Throughput Per PDCH

Description Uplink RLC Data Throughput Per PDCH = (Uplink RLC Payload+

Uplink EGPRS RLC Payload) / (measurement period x 60) / Average

Number of PDCHs Occupied by Uplink TBF

AssociatedOriginal KPIs

 None

MeasurementPoint

BSC

 

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9 PS Retainability KPIs

About This Chapter

This 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 the network 

and are directly related to user satisfaction. Thus, an increase in call drop rate directly leads to

a decrease in user satisfaction.

9.1 Uplink GPRS TBF Drop Rate

9.2 Downlink GPRS TBF DropRate

9.3 Uplink EGPRS TBF Drop Rate

9.4 Downlink EGPRS TBF Drop Rate

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9.1 Uplink GPRS TBF Drop Rate

Table 9-1 Uplink GPRS TBF Drop Rate

Counter Uplink GPRS TBF Drop Rate

Description Uplink GPRS TBF Drop Rate = Number of Uplink GPRS TBF

Abnormal Release / Number of Successful Uplink GPRS TBF

Establishment x 100%

AssociatedOriginal KPIs

 Number of Uplink GPRS TBF Abnormal Release = Number of Uplink 

GPRS TBF Abnormal Releases due to N3101 Overflow (MS No

Response) + Number of Uplink GPRS TBF Abnormal Releases due

to N3103 Overflow (MS No Response) + Number of Uplink EGPRS

TBF Abnormal Releases due to N3101 Overflow (MS No

Response)+ Number of Uplink EGPRS TBF Abnormal Releases due

to N3103 Overflow (MS No Response)

 Number of Successful Uplink GPRS TBF Establishment = Number of 

Successful Uplink GPRS TBF Establishments + Number of 

Successful Uplink EGPRS TBF Establishments

MeasurementPoint

BSC

 

9.2 Downlink GPRS TBF DropRate

Table 9-2 Downlink GPRS TBF DropRate

Counter Downlink GPRS TBF DropRate

Description Downlink GPRS TBF DropRate = Number of Downlink TBF Abnormal

Release due to N3105 Overflow / Number of Successful Downlink TBF

Establishment x 100%

AssociatedOriginal KPIs

 Number of Downlink TBF Abnormal Release due to N3105 Overflow

= Number of Downlink GPRS TBF Abnormal Releases due to N3105

Overflow + Number of Downlink EGPRS TBF Abnormal Releasesdue to N3105 Overflow

 Number of Successful Downlink TBF Establishment = Number of 

Successful Downlink GPRS TBF Establishments + Number of 

Successful Downlink EGPRS TBF Establishments

MeasurementPoint

BSC

 

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9.3 Uplink EGPRS TBF Drop Rate

Table 9-3 Uplink EGPRS TBF Drop Rate

Counter Uplink EGPRS TBF Drop Rate

Description Uplink EGPRS TBF Drop Rate = (Number of Uplink EGPRS TBF

Abnormal Releases due to N3101 Overflow (MS No Response) +

Number of Uplink EGPRS TBF Abnormal Releases due to N3103

Overflow (MS No Response)) / Number of Successful Uplink EGPRS

TBF Establishments x 100%

AssociatedOriginal KPIs

 None

MeasurementPoint

BSC

 

9.4 Downlink EGPRS TBF Drop Rate

Table 9-4 Downlink EGPRS TBF Drop Rate

Counter Downlink EGPRS TBF Drop Rate

Description Downlink EGPRS TBF Drop Rate = Number of Downlink EGPRSTBF Abnormal Releases due to N3105 Overflow / Number of 

Successful Downlink EGPRS TBF Establishments x 100%

AssociatedOriginal KPIs

 None

MeasurementPoint

BSC

 

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10 PS End-to-End Delay KPIs

About This Chapter

This describes the PS End-to-End Delay KPIs that indicate the service response speed of the

network. Long delay affects user satisfaction.

10.1 PING Delay

10.2 Mean Delay of PDP Activation

10.3 Mean Delay of Attachment

10.4 Cell Reselection Time for 2G Packet Services

10.5 Cell Reselection Time for 2G->3G Packet Services

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10.1 PING Delay

Table 10-1 PING Delay

Counter PING Delay

Description The PING delay is the difference between the time when the MS sends

an ICMP packet of the Return Request type and the time when the

receiving end responds with an ICMP packet of the Return

Acknowledgment type. Two types of PING delay are available: initial

PING delay and consecutive PING delay.

l Initial PING delay

If the interval between two consecutive PING operations is longer 

than 9000 ms, the MS enters the Packet Idle Mode. If the PING

operation is re-initiated, the TBF established on the CCCH is used.Therefore, the initial PING delay is longer.

l Consecutive PING delay

If the interval between two consecutive PING operations is shorter 

than 500 ms, the PCU uses the uplink delay release or downlink delay

release policy. This avoids the TBF establishment for the following

PING operations or the TBF re-establishment on the PACCH. This

PING delay is relatively shorter.

AssociatedOriginal KPIs

 None

MeasurementPoint

BSC

Test Method l Use a dedicated tool (for example, TEMS) and edit the commands to

 perform the test.

l Use the PING command attached the operating system to perform the

test.

 

10.2 Mean Delay of PDP Activation

Table 10-2 Mean Delay of PDP Activation

Counter Mean Delay of PDP Activation

Description This measurement provides the interval between the time when the MS

sends an Activate PDP Context Request message to the network and the

time when the network responds with an Activate PDP Context Accept

message.

AssociatedOriginal KPIs

 None

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MeasurementPoint

BSC

Test Method Use a dedicated test tool (for example, TEMS) to perform the test.

 

10.3 Mean Delay of Attachment

Table 10-3 Mean Delay of Attachment

Counter Mean Delay of Attachment

Description This measurement provides the interval between the time when the MS

sends an Attach Request message to the network and the time when the

network responds with an Attach Complete message.

AssociatedOriginal KPIs

 None

MeasurementPoint

BSC

Test Method Use a dedicated test tool (for example, TEMS) to perform the test.

 

10.4 Cell Reselection Time for 2G Packet ServicesTable 10-4 Cell Reselection Time for 2G Packet Services

Counter Cell Reselection Time for 2G Packet Services

Description This measurement provides the interval between the time when a cell

reselection is initiated and the time when a Channel Request message is

initiated by the MS. This interval can be measured manually through the

test tool.

AssociatedOriginal KPIs

 None

MeasurementPoint

BSC

Test Method Use a dedicated test tool (for example, TEMS) to perform the test.

 

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10.5 Cell Reselection Time for 2G->3G Packet Services

Table 10-5 Cell Reselection Time for 2G->3G Packet Services

Counter Cell Reselection Time for 2G->3G Packet Services

Description This measurement provides the interval between the time when the MS

initiates a cell reselection from a 2G cell to a 3G cell and the time when

the MS initiates a Channel Request message in the new cell. This interval

can be measured manually through the test tool.

AssociatedOriginal KPIs

 None

Measurement

Point

BSC

Test Method Use a dedicated test tool (for example, TEMS) to perform the test.

 

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11 PS End-to-End Quality KPIs

About This Chapter

This describes the PS end-to-end quality KPIs. They involve the performance factors associated

with the terminals, 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 are directly related to user 

satisfaction.

11.1 GRPS Data Transmission Rate

11.2 EDGE Data Transmission Rate

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11.1 GRPS Data Transmission Rate

Table 11-1 GRPS Data Transmission Rate

Counter GRPS Data Transmission Rate

Description This measurement provides the amount of data transmitted every second

 by the GPRS system. The GPRS throughput focuses mainly on the

throughput at the RLC/MAC layer and the throughput at the application

layer. The test of the throughput at the RLC/MAC layer is difficult.

Therefore, the throughput we discuss generally refers to the throughput

at the application layer. The throughput at the RLC/MAC layer is

generally higher than that at the application layer.

AssociatedOriginal KPIs

 None

MeasurementPoint

BSC

Test Method For a single cell, the call quality test (CQT) method is adopted; for 

multiple cells, the drive test (DT) method is adopted.

 

11.2 EDGE Data Transmission Rate

Table 11-2 EDGE Data Transmission Rate

Counter EDGE Data Transmission Rate

Description This measurement provides the amount of data transmitted every second

 by the EDGE system. The EDGE throughput focuses mainly on the

throughput at the RLC/MAC layer and the throughput at the application

layer. The test of the throughput at the RLC/MAC layer is difficult.

Therefore, the throughput we discuss generally refers to the throughput

at the application layer. The throughput at the RLC/MAC layer is

generally higher than that at the application layer.

AssociatedOriginal KPIs

 None

MeasurementPoint

BSC

Test Method For a single cell, the call quality test (CQT) method is adopted; for 

multiple cells, the drive test (DT) method is adopted.

 

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