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HUAWEI BSC6000 Base Station Subsystem

V900R008

BSS KPI Reference

Issue 01

Date 2008-4-15

Part Number

Huawei Proprietary and Confidential

Copyright Huawei Technologies Co., Ltd

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Notice

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

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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................................................................................................................................3-4

3.6 HandoverSuccess Rate...................................................................................................................................3-4

3.7 HandoverRF Success Rate.............................................................................................................................3-5

3.8 Intra-BSC Handover Success Rate..................................................................................................................3-5

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

3.10 Inter-BSC Outgoing Cell Handover Success Rate........................................................................................3-6

3.11 Intra-BSC Handover RF Success Rate..........................................................................................................3-6

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

3.13 Inter-BSC Outgoing Cell Radio Handover Success Rate.............................................................................3-7

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 DownlinkRLC 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 DownlinkRLC Data Retransmission Rate......................................................................................................6-2

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

6.4 DownlinkEGPRS RLC Data Retransmission Rate........................................................................................6-3

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

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

7.2 DownlinkAssignment Success Rate...............................................................................................................7-2

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

7.4 DownlinkEGPRS 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 DownlinkGPRS TBF Congestion Rate..........................................................................................................7-4

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

7.9 DownlinkEGPRS TBF Congestion Rate........................................................................................................7-5

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

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

8.2 DownlinkPDTCH/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 DownlinkRLC 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 DownlinkGPRS TBF DropRate.....................................................................................................................9-2

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

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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.........................................................................................................................10-2

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

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

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.....................................................................................................................3-4

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

Table 3-7 Handover RF Success Rate..................................................................................................................3-5

Table 3-8 Intra-BSC Handover Success Rate.......................................................................................................3-5

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

Table 3-10 Inter-BSC Outgoing Cell Handover Success Rate.............................................................................3-6

Table 3-11 Intra-BSC Handover RF Success Rate...............................................................................................3-6

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

Table 3-13 Inter-BSC Outgoing Cell Radio Handover Success Rate..................................................................3-7

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

Table 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 downlink data at the LLC layer............................................................5-3

Table 5-6 Mean payload (kbytes) of the uplink 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..............................................................................................................10-2

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

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

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.

ProductName

Product Model Product Version

BSC BSC6000 V900R008C01

BTS BTS3012 V300R008

Intended Audience

This document is intended for:

l Network planners

l Network administrators

l Network operators

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


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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 therunning 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 ina 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 networkexpansion.

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 to

a decrease in user satisfaction.

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 of

terminals, the radio access network, and the core network. Now, the main performance problem

comes from 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

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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 userroot .

Italic Book titles are in italics.

Courier New Terminal display is in Courier New.

3. Command Conventions


Boldface The keywords of a command line are in boldface.

Italic Command 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.


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[ 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


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

boldface. For example,clickOK.

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

For example,choose File > Create > Folder .

5. Keyboard Operation


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 two

keys 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.

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

to a certain position.

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1 Introduction to KPIThis 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 KPIs

l 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 spandifferent periods.

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

different periods.



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2 CS Accessibility KPIsAbout 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 (CircuitService) / 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 toBusy 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) - (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%


None

Measurement 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 BusyTCH (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%


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/(SDCCHSeizures 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%



BSS KPI Reference



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

100%


None

MeasurementPoint

BSC





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3 CS Retainability KPIsAbout 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 Rate3.11 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)


3.16 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%


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)

Definition 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%


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 Dropson TCH



BSS KPI Reference



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None

Measurement Point

BSC

3.4 TCH RF Lost Rate

Table 3-4 TCH RF Lost Rate

Counter TCH RF Lost Rate

Descripti

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

(TCH) + Call Drops due to ERR IND Received on TCHF (Signaling

Channel) in Stable State (T200 Expired) + Call Drops due to ERR IND

Received on TCHF (Signaling Channel) in Stable State (Unsolicited DM

Response) + Call Drops due to ERR IND Received on TCHF (Signaling

Channel) in Stable State (Sequence Error) + Call Drops due to ERR IND

Received on TCHH (Signaling Channel) in Stable State (T200 Expired) +

Call Drops due to ERR IND Received on TCHH (Signaling Channel) in

Stable State (Unsolicited DM Response) + Call Drops due to ERR IND

Received on TCHH (Signaling Channel) in Stable State (Sequence

Error) + Call Drops due to CONN FAIL Received on TCHF (Signaling

Channel) in Stable State (Radio Link Failure) + Call Drops due to CONN

FAIL Received on TCHF (Signaling Channel) in Stable State (HO Access

Failure) + Call Drops due to CONN FAIL Received on TCHF (Signaling

Channel) in Stable State (OM Intervention) +Call Drops due to CONN

FAIL Received on TCHF (Signaling Channel) in Stable State (Radio

Resource Unavailable) + Call Drops due to CONN FAIL Received on

TCHF (Signaling Channel) in Stable State (Other Causes) + Call Drops

due to CONN FAIL Received on TCHH (Signaling Channel) in Stable

State (Radio Link Failure) + Call Drops due to CONN FAIL Received on

TCHH (Signaling Channel) in Stable State (HO Access Failure) + Call

Drops due to CONN FAIL Received on TCHH (Signaling Channel) in

Stable State (OM Intervention) + Call Drops due to CONN FAIL Received

on TCHH (Signaling Channel) in Stable State (Radio Resource

Unavailable) + Call Drops due to CONN FAIL Received on TCHH(Signaling Channel) in Stable State (Other Causes) + Call Drops due to

REL IND Received on TCHF (Signaling Channel) + Call Drops due to

REL IND Received on TCHH (Signaling Channel))/ (Successful TCH

Seizures (Signaling Channel) + Successful TCH Seizures (Traffic

Channel) + Successful TCH Seizures in TCH handovers (Traffic

Channel)) x 100%


None





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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 = (Failed Internal Intra-Cell Handovers(Timer Expired) (TCHF) (Signaling Channel) + Failed Internal

Intra-Cell Handovers (Timer Expired) (TCHH) (Signaling

Channel) + Failed Internal Intra-Cell Handovers (Timer Expired)(TCHF) (Traffic Channel) + Failed Internal Intra-Cell Handovers

(Timer Expired) (TCHH) (Traffic Channel) + Failed Outgoing

Internal Inter-Cell Handovers (Timer Expired) (TCHF)

(Signaling Channel) + Failed Outgoing Internal Inter-Cell

Handovers (Timer Expired) (TCHH) (Signaling Channel) + Call

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

Seizures (Traffic Channel)) x 100%


None

Measurement

Point

BSC

3.6 Handover Success Rate

Table 3-6 Handover success rate

Counter Handover Success Rate

Definition 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%


None.

MeasurementPoint

BSC



BSS KPI Reference



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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-Cell

Handover + Successful Outgoing External Inter-Cell Handovers) /

(Outgoing Internal Inter-Cell Handover Commands + Outgoing External

Inter-Cell Handover Commands) x 100%


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-CellHandovers + Successful Incoming Internal Inter-Cell

Handovers / (Internal Intra-Cell Handover Requests +

Incoming Internal Inter-Cell Handover Requests x 100%


None

MeasurementPoint

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 = SuccessfulIncoming External Inter-Cell Handovers / Incoming External

Inter-Cell Handover Requests x 100%

Associated

Original KPIs

None





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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 = SuccessfulOutgoing 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

Description Intra-BSC Handover RF Success Rate = (Successful Internal Intra-CellHandovers + Successful Incoming Internal Inter-Cell Handovers) /

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

Cell Handover Responses) x 100%


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 = SuccessfulIncoming External Inter-Cell Handovers / Incoming External Inter-Cell

Handover Responses x 100%



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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

Description Inter-BSC Outgoing Cell Radio Handover Success Rate = SuccessfulOutgoing External Inter-Cell Handovers / Outgoing External Inter-Cell

Handover Commands x 100%


None

Measurement Point

BSC


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%





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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-CellHandover 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


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%



BSS KPI Reference



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Successful Dual-Band Handovers (1800M/1900M900M/850M) =


(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)


Requests (TCHF) (Excluding Directed Retry)


Requests (TCHH) (Excluding Directed Retry)


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) =


(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)


Requests (SDCCH) (Excluding Directed Retry)


Requests (TCHF) (Excluding Directed Retry)


Requests (TCHH) (Excluding Directed Retry)


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

MeasurementPoint

BSC

3.16 Call Success Rate

Table 3-16 Call Success Rate

Counter Call Success Rate





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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%


None

MeasurementPoint

BSC



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4 CS Resource Utilization KPIsAbout 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) (900/850Cell) + 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)


None

Measurement

PointBSC

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)


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%


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%


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%


BSS KPI Reference 4 CS Resource Utilization KPIs



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

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

Sampled Number of Channel State

Measurement Point

BSC



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5 PS Throughput KPIsAbout 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 x8 / 1024


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 datablocks x 8 / 1024


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 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 datablocks x 8 / 1024



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

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



Uplink EGPRS MCS4 RLC Data Blocks x 44 + Total Number ofUplink EGPRS MCS5 RLC Data Blocks x 56 + 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 RLCdata blocks x 8 / 1024


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

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


Downlink EGPRS MCS3 RLC Data Blocks x 37 + Total Number ofDownlink EGPRS MCS4 RLC Data Blocks x 44 + Total Number of


Downlink EGPRS MCS6 RLC data blocks x 74 + 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 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 Uplink LLC PDUs Sent x 8 / 1024





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None

MeasurementPoint

BSC

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

Table 5-6 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 Bytesof LLC PDUs Sent x 8 / 1024


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


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 + UplinkEGPRS RLC Payload) / (Downlink RLC Payload + Downlink

EGPRS RLC Payload)


None

MeasurementPoint

BSC





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6 PS Transmission KPIsAbout 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 datablocks received by the BSS / Number of uplink RLC data blocks sent by

the MS x 100%


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

Blocks sent by the BSS x 100%


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 Block Using CS4

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

Number of Downlink GPRS RLC Data Blocks

MeasurementPoint

BSC



BSS KPI Reference



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

EGPRS RLC Data Blocks sent by the MS x 100%


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

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


BSS KPI Reference 6 PS Transmission KPIs



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





Blocks

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

Number of Downlink EGPRS RLC Data Blocks

MeasurementPoint

BSC



BSS KPI Reference



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7 PS Accessibility KPIsAbout 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 DownlinkAssignment Success Rate

7.3 Uplink EGPRS Assignment Success Rate

7.4 DownlinkEGPRS Assignment Success Rate

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

7.6 Uplink GPRS TBF Congestion Rate

7.7 DownlinkGPRS TBF Congestion Rate

7.8 Uplink EGPRS TBF Congestion Rate

7.9 DownlinkEGPRS 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 TBFEstablishment / Number of Uplink TBF Establishment Attempts x 100%


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 DownlinkTBF Establishment/ Number of Downlink TBF Establishment Attempts

x 100%


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

7 PS Accessibility KPIs


BSS KPI Reference



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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%


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%


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)

BSS KPI

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