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HUAWEI BSC6000 Base Station Subsystem
V900R008
BSS KPI Reference
Issue 01
Date 2008-06-10
INTERNAL
Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd
Huawei Technologies Co., Ltd. provides customers with comprehensive technical support and service. For anyassistance, please contact our local office or company headquarters.
Huawei Technologies Co., Ltd.Address: Huawei Industrial Base
Bantian, LonggangShenzhen 518129People's Republic of China
Website: http://www.huawei.com
Email: [email protected]
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 writtenconsent of Huawei Technologies Co., Ltd. Trademarks and Permissions
and other Huawei trademarks are the property of Huawei Technologies Co., Ltd.All other trademarks and trade names mentioned in this document are the property of their respective holders. NoticeThe information in this document is subject to change without notice. Every effort has been made in thepreparation of this document to ensure accuracy of the contents, but the statements, information, andrecommendations in this document do not constitute a warranty of any kind, express or implied.
Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd
Contents
About This Document.....................................................................................................................1
1 Introduction to KPI....................................................................................................................1-1
2 CS Accessibility KPIs................................................................................................................2-12.1 Immediate Assignment Success Rate..............................................................................................................2-22.2 SDCCH Congestion Rate(Overflow)..............................................................................................................2-22.3 SDCCH Drop Rate..........................................................................................................................................2-22.4 TCH Assignment Success Rate.......................................................................................................................2-32.5 TCH Attempt Failure Rate Due to No TCH Assignment...............................................................................2-32.6 TCH Congestion Rate(Overflow)...................................................................................................................2-32.7 TCH Seizure Success Rate..............................................................................................................................2-42.8 Call Establishment Success Rate.....................................................................................................................2-42.9 BSS Call Setup Success Rate..........................................................................................................................2-5
3 CS Retainability KPIs................................................................................................................3-13.1 TCH Call Drop Rate(including Handovers)....................................................................................................3-23.2 TCH Call Drop Rate (Excluding Handover)...................................................................................................3-23.3 Traffice Volume to Call Drops........................................................................................................................3-23.4 TCH RF Lost Rate...........................................................................................................................................3-33.5 TCH Handover Lost Rate................................................................................................................................3-33.6 Handover Success Rate...................................................................................................................................3-43.7 Handover RF Success Rate.............................................................................................................................3-43.8 Intra-BSC Handover Success Rate..................................................................................................................3-43.9 Inter-BSC Incoming Cell Handover Success Rate..........................................................................................3-53.10 Inter-BSC Outgoing Cell Handover Success Rate........................................................................................3-53.11 Intra-BSC Handover RF Success Rate..........................................................................................................3-53.12 Inter-BSC Incoming Cell Radio Handover Success Rate.............................................................................3-63.13 Inter-BSC Outgoing Cell Radio Handover Success Rate.............................................................................3-63.14 Dual-Band Handover Success Rate(900/850-1800/1900)............................................................................3-73.15 Dual-Band Handover Success Rate(1800/1900-900/850)............................................................................3-83.16 Call Success Rate..........................................................................................................................................3-9
4 CS Resource Utilization KPIs..................................................................................................4-14.1 TCH Traffic Volume.......................................................................................................................................4-24.2 SDCCH Traffic Volume..................................................................................................................................4-2
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4.3 TCHH Traffic Volume....................................................................................................................................4-24.4 TCH Availablity..............................................................................................................................................4-34.5 TRX Availability.............................................................................................................................................4-34.6 SDCCH Availability.......................................................................................................................................4-3
5 PS Throughput KPIs..................................................................................................................5-15.1 Uplink RLC Payload.......................................................................................................................................5-25.2 Downlink RLC Payload..................................................................................................................................5-25.3 Uplink EGPRS RLC Payload..........................................................................................................................5-25.4 Downlink EGPRS RLC Payload.....................................................................................................................5-35.5 Mean payload (kbytes) of the uplink data at the LLC layer............................................................................5-35.6 Mean payload (kbytes) of the downlink data at the LLC layer.......................................................................5-45.7 Mean Downlink NS_PDUs throughput...........................................................................................................5-45.8 Packet data rate on air interface......................................................................................................................5-4
6 PS Transmission KPIs...............................................................................................................6-16.1 Uplink RLC Data Retransmission Rate..........................................................................................................6-26.2 Downlink RLC Data Retransmission Rate......................................................................................................6-26.3 Uplink EGPRS RLC Data Retransmission Rate.............................................................................................6-36.4 Downlink EGPRS RLC Data Retransmission Rate........................................................................................6-3
7 PS Accessibility KPIs................................................................................................................ 7-17.1 Uplink Assignment Success Rate....................................................................................................................7-27.2 Downlink Assignment Success Rate...............................................................................................................7-27.3 Uplink EGPRS Assignment Success Rate......................................................................................................7-27.4 Downlink EGPRS Assignment Success Rate.................................................................................................7-37.5 Mean inter-arrival time of packet access requests on CCCH..........................................................................7-37.6 Uplink GPRS TBF Congestion Rate...............................................................................................................7-47.7 Downlink GPRS TBF Congestion Rate..........................................................................................................7-47.8 Uplink EGPRS TBF Congestion Rate............................................................................................................7-57.9 Downlink EGPRS TBF Congestion Rate........................................................................................................7-5
8 PS Resource Utilization KPIs...................................................................................................8-18.1 Uplink PDTCH/PACCH utilization rate.........................................................................................................8-28.2 Downlink PDTCH/PACCH utilization rate....................................................................................................8-28.3 PDCH occupation rate.....................................................................................................................................8-28.4 Pre-empted Dynamic PDCH Carrying Packet Traffic Reclaimed SuccessRate.............................................8-38.5 PDCH Allocation Success Rate......................................................................................................................8-38.6 Downlink RLC Data Throughput Per PDCH..................................................................................................8-48.7 Uplink RLC Data Throughput Per PDCH.......................................................................................................8-4
9 PS Retainability KPIs................................................................................................................9-19.1 Uplink GPRS TBF Drop Rate.........................................................................................................................9-29.2 Downlink GPRS TBF DropRate.....................................................................................................................9-29.3 Uplink EGPRS TBF Drop Rate......................................................................................................................9-3
ContentsHUAWEI BSC6000 Base Station Subsystem
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9.4 Downlink EGPRS TBF Drop Rate..................................................................................................................9-3
10 PS End-to-End Delay KPIs...................................................................................................10-110.1 PING Delay.................................................................................................................................................10-210.2 Mean Delay of PDP Activation...................................................................................................................10-210.3 Mean Delay of Attachment.........................................................................................................................10-310.4 Cell Reselection Time for 2G Packet Services...........................................................................................10-310.5 Cell Reselection Time for 2G->3G Packet Services...................................................................................10-4
11 PS End-to-End Quality KPIs................................................................................................11-111.1 GRPS Data Transmission Rate...................................................................................................................11-211.2 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.....................1-2Figure 1-2 KPIs classified by measurement object in the PS...............................................................................1-3
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Tables
Table 2-1 Immediate Assignment Success Rate...................................................................................................2-2Table 2-2 SDCCH Congestion Rate(Overflow)...................................................................................................2-2Table 2-3 SDCCH Drop Rate...............................................................................................................................2-2Table 2-4 TCH Assignment Success Rate............................................................................................................2-3Table 2-5 TCH Attempt Failure Rate Due to No TCH Assignment....................................................................2-3Table 2-6 TCH Congestion Rate(Overflow)........................................................................................................2-3Table 2-7 TCH Seizure Success Rate...................................................................................................................2-4Table 2-8 Call establishment success rate............................................................................................................2-4Table 2-9 BSS Call Setup Success Rate...............................................................................................................2-5Table 3-1 TCH Call Drop Rate(including Handovers)......................................................................................3-2Table 3-2 TCH call drop rate (excluding handover)............................................................................................3-2Table 3-3 Traffice Volume to Call Drops............................................................................................................3-2Table 3-4 TCH RF Lost Rate...............................................................................................................................3-3Table 3-5 TCH Handover Lost Rate.....................................................................................................................3-3Table 3-6 Handover success rate..........................................................................................................................3-4Table 3-7 Handover RF Success Rate..................................................................................................................3-4Table 3-8 Intra-BSC Handover Success Rate.......................................................................................................3-4Table 3-9 Inter-BSC Incoming Cell Handover Success Rate...............................................................................3-5Table 3-10 Inter-BSC Outgoing Cell Handover Success Rate.............................................................................3-5Table 3-11 Intra-BSC Handover RF Success Rate...............................................................................................3-5Table 3-12 Inter-BSC Incoming Cell Radio Handover Success Rate..................................................................3-6Table 3-13 Inter-BSC Outgoing Cell Radio Handover Success Rate..................................................................3-6Table 3-14 Dual-Band Handover Success Rate(900/850-1800/1900).................................................................3-7Table 3-15 Dual-Band Handover Success Rate (1800/1900-900/850)................................................................3-8Table 3-16 Call Success Rate...............................................................................................................................3-9Table 4-1 TCH Traffic Volume............................................................................................................................4-2Table 4-2 SDCCH Traffic Volume......................................................................................................................4-2Table 4-3 TCHH Traffic Volume.........................................................................................................................4-2Table 4-4 TCH Availablity...................................................................................................................................4-3Table 4-5 TRX Availability..................................................................................................................................4-3Table 4-6 SDCCH Availability............................................................................................................................4-3Table 5-1 Uplink RLC Payload............................................................................................................................5-2Table 5-2 Downlink RLC Payload.......................................................................................................................5-2
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Table 5-3 Uplink EGPRS RLC Payload...............................................................................................................5-2Table 5-4 Downlink EGPRS RLC Payload..........................................................................................................5-3Table 5-5 Mean payload (kbytes) of the uplink data at the LLC layer.................................................................5-3Table 5-6 Mean payload (kbytes) of the downlink data at the LLC layer............................................................5-4Table 5-7 Mean Downlink NS_PDUs throughput...............................................................................................5-4Table 5-8 Packet data rate on air interface...........................................................................................................5-4Table 6-1 Uplink RLC Data Retransmission Rate...............................................................................................6-2Table 6-2 Downlink RLC Data Retransmission Rate..........................................................................................6-2Table 6-3 Uplink EGPRS RLC Data Retransmission Rate..................................................................................6-3Table 6-4 Downlink EGPRS RLC Data Retransmission Rate.............................................................................6-3Table 7-1 Uplink Assignment Success Rate.........................................................................................................7-2Table 7-2 Downlink Assignment Success Rate....................................................................................................7-2Table 7-3 Uplink EGPRS Assignment Success Rate...........................................................................................7-2Table 7-4 Downlink EGPRS Assignment Success Rate......................................................................................7-3Table 7-5 Mean inter-arrival time of packet access requests on CCCH...............................................................7-3Table 7-6 Uplink GPRS TBF Congestion Rate....................................................................................................7-4Table 7-7 Downlink GPRS TBF Congestion Rate...............................................................................................7-4Table 7-8 Uplink EGPRS TBF Congestion Rate.................................................................................................7-5Table 7-9 Downlink EGPRS TBF Congestion Rate............................................................................................7-5Table 8-1 Uplink PDTCH/PACCH utilization rate..............................................................................................8-2Table 8-2 Downlink PDTCH/PACCH utilization rate.........................................................................................8-2Table 8-3 PDCH occupation rate..........................................................................................................................8-2Table 8-4 Pre-empted Dynamic PDCH Carrying Packet Traffic Reclaimed SuccessRate..................................8-3Table 8-5 PDCH Allocation Success Rate...........................................................................................................8-3Table 8-6 Downlink RLC Data Throughput Per PDCH.......................................................................................8-4Table 8-7 Uplink RLC Data Throughput Per PDCH...........................................................................................8-4Table 9-1 Uplink GPRS TBF Drop Rate..............................................................................................................9-2Table 9-2 Downlink GPRS TBF DropRate..........................................................................................................9-2Table 9-3 Uplink EGPRS TBF Drop Rate...........................................................................................................9-3Table 9-4 Downlink EGPRS TBF Drop Rate......................................................................................................9-3Table 10-1 PING Delay......................................................................................................................................10-2Table 10-2 Mean Delay of PDP Activation........................................................................................................10-2Table 10-3 Mean Delay of Attachment..............................................................................................................10-3Table 10-4 Cell Reselection Time for 2G Packet Services................................................................................10-3Table 10-5 Cell Reselection Time for 2G->3G Packet Services........................................................................10-4Table 11-1 GRPS Data Transmission Rate........................................................................................................11-2Table 11-2 EDGE Data Transmission Rate........................................................................................................11-2
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About This Document
PurposeThis document describes the definitions, types, and units of Huawei BSS KPIs.
Product VersionThe 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/BTS3900GSM
V300R008
BTS3036A/BTS3900AGSM
V300R008
DBS3036/DBS3900GSM
V300R008
Intended AudienceThis document is intended for:
l Network planners
l Network administrators
l Network operators
Change HistoryFor changes in the document, refer to Changes in BSS KPI Reference.
HUAWEI BSC6000 Base Station SubsystemBSS KPI Reference About This Document
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1
Organization1 Introduction to KPI
This describes the KPI, which is used to monitor the network performance and detect networkproblems.
2 CS Accessibility KPIs
This describes the CS accessibility KPIs that mainly indicate the call success rate when a MSaccesses 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, themoving frequency, and the success rate of handovers on the move. In addition, these KPIsindicate 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.
4 CS Resource Utilization KPIs
This describes the CS Resource Utilization KPIs that are used to monitor the load of hot cellsand the network. These KPIs can serve as references for capacity expansion. The traffic volumeKPIs help to obtain the ratio of busy-hour traffic to idle-hour traffic, to evaluate the utilizationof 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 thenetwork 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, toevaluate 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 radiotransmission links in the cell is poor. Therefore, take corresponding measures, such as RFoptimization.
7 PS Accessibility KPIs
This describes the PS Accessibility KPIs that indicate whether MSs can easily access cells. PoorPS Accessibility KPIs directly affect user satisfaction.
8 PS Resource Utilization KPIs
This describes the PS Resource Utilization KPIs that indicate the utilization of the networkresource 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 calldrop rates. These KPIs indicate the capability of providing continuous services by the networkand are directly related to user satisfaction. Thus, an increase in call drop rate directly leads toa decrease in user satisfaction.
About This DocumentHUAWEI BSC6000 Base Station Subsystem
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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 thenetwork. 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 associatedwith the terminals, the radio access network, and the core network. Now, the main performanceproblem 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 usersatisfaction.
Conventions
1. Symbol Conventions
The following symbols may be found in this document. They are defined as follows
Symbol Description
DANGERIndicates a hazard with a high level of risk that, if not avoided,will result in death or serious injury.
WARNINGIndicates a hazard with a medium or low level of risk which, ifnot avoided, could result in minor or moderate injury.
CAUTIONIndicates a potentially hazardous situation that, if not avoided,could cause equipment damage, data loss, and performancedegradation, or unexpected results.
TIP Indicates a tip that may help you solve a problem or save yourtime.
NOTE Provides additional information to emphasize or supplementimportant 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. Forexample,log in as user root .
Italic Book titles are in italics.
Courier New Terminal display is in Courier New.
3. Command Conventions
HUAWEI BSC6000 Base Station SubsystemBSS KPI Reference About This Document
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Convention Description
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 verticalbars.One is selected.
[ x | y | ... ] Optional alternative items are grouped in square brackets andseparated by vertical bars.One or none is selected.
{ x | y | ... } * Alternative items are grouped in braces and separated by verticalbars.A minimum of one or a maximum of all can be selected.
[ x | y | ... ] * Alternative items are grouped in braces and separated by verticalbars.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 inboldface. For example,click OK.
> Multi-level menus are in boldface and 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+Ameans 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 thepointer.
Double-click Press the primary mouse button twice continuously and quicklywithout moving the pointer.
About This DocumentHUAWEI BSC6000 Base Station Subsystem
BSS KPI Reference
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Action Description
Drag Press and hold the primary mouse button and move the pointerto a certain position.
HUAWEI BSC6000 Base Station SubsystemBSS KPI Reference About This Document
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5
1 Introduction to KPI
This describes the KPI, which is used to monitor the network performance and detect networkproblems.
KPI AttributesEach KPI has the following attributes:
l Measurement object: indicates the measurement scope of a KPI, such as BSC level, PCUlevel, or cell level.
l Measurement set: describes the signaling or algorithm of collecting a KPI, such as callaccess and TBF establishment.
l Measurement service: indicates the service type of a KPI, such as CS service or PS service.
Measurement SetFigure 1-1 shows the measurement set of the CS domain performance counters. Callmeasurement and channel measurement are very important. Most of performance counters aredistributed 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
Performancemeasurement Call measurement
Channelmeasurement
BTS managementmeasurement
System loadmeasurement
Pagingmeasurement
Measurement reportmeasurement
Resourcemeasurement
SCCP measurement
MTP3 measurement
LAPD measurement
PCU measurement
MSC measurement
CBC measurement
BSC overallperformancemeasurement
Figure 1-2 shows the measurement sets of the performance counters in the PS domain. Cellperformance measurement is very important. Most of performance counters are distributed inthis measurement set.
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Figure 1-2 KPIs classified by measurement object in the PS
Performancemeasurement
BSC overallperformancemeasurement
NS performancemeasurement
G-Abis interfaceperformancemeasurement
System loadmeasurement
Cell performancemeasurement
CPU performancemeasurement
BSSGP performancemeasurement
PB interfaceperformancemeasurement
PCU measurement
Classification of KPIsKPIs that are commonly used in routine monitoring can be classified according to the indicatedperformance.
The CS KPIs can be categorized into the following:
l Accessibility KPIsl Retainability KPIsl Resource Utilization KPIs
The PS KPIs can be categorized into the following:
l Throughput KPIsl Transmission KPIsl Accessibility KPIsl Resource utilization KPIsl Retainability KPIsl End-to-End Delay KPIsl End-to-End Quality KPIs
Collection of KPIsCS KPIs per cell and KPIs per BSC can be viewed and analyzed on the M2000. KPIs can beexported from the M2000 as .csv, .xls, .html, or .txt files. In addition, CS KPIs per BSC can beviewed and analyzed through the BSC6000 intelligent report system. KPIs can be exported fromthe BSC6000 intelligent report system as .csv, .xls, .html, or .txt files.
PS KPIs, such as Throughput KPIs, Transmission KPIs, Accessibility KPIs, Resource utilizationKPIs, 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 spansdifferent periods.
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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 MSaccesses 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 RateTable 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%
AssociatedOriginal KPIs
None
MeasurementPoint
BSC
2.3 SDCCH Drop RateTable 2-3 SDCCH Drop Rate
Counter SDCCH Drop Rate
Description
SDCCH Drop Rate = Call Drops on SDCCH / Successful SDCCHSeizures 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 / AssignmentRequests x 100%
Associated OriginalKPIs
None
MeasurementPoint
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
Description
TCH Attempt Failure Rate Due to No TCH Assignment = (TCH SeizureRequests (Signaling Channel) + TCH Seizure Requests (TrafficChannel) + TCH Seizure Requests in TCH Handovers (TrafficChannel) - 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 (TrafficChannel)) x 100%
Associated OriginalKPIs
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 toBusy TCH (Traffic Channel)) / (TCH Seizure Requests (SignalingChannel) + 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 (SignalingChannel) + Successful TCH Seizures (Traffic Channel) + Successful TCHSeizures in TCH handovers (Traffic Channel)) / (TCH Seizure Requests(Signaling Channel) + TCH Seizure Requests (Traffic Channel) + TCHSeizure Requests in TCH Handovers (Traffic Channel)) x 100%
Associated 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 SetupIndications (Emergency Call) (TCHF) + Call Setup Indications (CallRe-establishment) (TCHF) + Call Setup Indications (MOC Non SMS)(TCHH) + Call Setup Indications (MTC) (TCHH) + Call SetupIndications (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 SuccessRate x TCH Assignment Success Rate) x (1 - SDCCH Drop Rate)) x100%
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, themoving frequency, and the success rate of handovers on the move. In addition, these KPIsindicate 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.
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 TCHSeizures (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 IncomingInternal Inter-Cell Handovers + Successful External Incoming CellHandovers - 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 Dropson 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 (TrafficChannel) + Call Drops on Radio Interface in Stable State (TCH QuaSignaling Channel)) / (Successful TCH Seizures (Signaling Channel) +Successful TCH Seizures (Traffic Channel) + Successful TCH Seizures inTCH 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 + CallDrops in TCH Handovers (Traffic Channel)) / (Successful TCHSeizures (Signaling Channel) + Successful TCH Seizures (TrafficChannel) + Successful TCH Seizures in TCH Handovers (TrafficChannel)) 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-CellHandovers + Successful External Outgoing Cell Handovers) /(Outgoing Internal Inter-Cell Handover Requests + OutgoingExternal 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 ExternalInter-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-CellHandovers + Successful Incoming Internal Inter-CellHandovers) / (Internal Intra-Cell Handover Requests + IncomingInternal Inter-Cell Handover Requests) x 100%
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AssociatedOriginal KPIs
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 ExternalInter-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 = SuccessfulOutgoing External Inter-Cell Handovers / Outgoing ExternalInter-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-CellHandovers + 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 = SuccessfulIncoming External Inter-Cell Handovers / Incoming External Inter-CellHandover 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
Description Inter-BSC Outgoing Cell Radio Handover Success Rate = SuccessfulOutgoing External Inter-Cell Handovers / Outgoing External Inter-CellHandover 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 HandoverRequests (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 HandoverRequests (SDCCH) (900/850-1800/1900) + Incoming External Inter-CellHandover Requests (TCH) (900/850-1800/1900) + Outgoing ExternalInter-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) + OutgoingExternal Inter-Cell Handover Requests (TCHH) (Excluding DirectedRetry) (900/850-1800/1900) + Outgoing External Inter-Cell HandoverRequests (Directed Retry) (900/850-1800/1900) - (Failed IncomingInternal Inter-Cell Handovers (SDCCH) (900/850-1800/1900) + FailedIncoming 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 ExternalInter-Cell Handovers (TCHF) (900/850-1800/1900) + Failed OutgoingExternal Inter-Cell Handovers (TCHH) (900/850-1800/1900) + FailedOutgoing External Inter-Cell Handovers (Directed Retry)(900/850-1800/1900))Dual-Band Handover Requests (900M/850M-1800M/1900M) = IncomingInternal 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 ExternalInter-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) + OutgoingExternal Inter-Cell Handover Requests (TCHH) (Excluding DirectedRetry) (900/850-1800/1900) + Outgoing External Inter-Cell HandoverRequests (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 HandoverRequests (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 HandoverRequests (SDCCH) (Excluding Directed Retry)(1800/1900-900/850) + Outgoing External Inter-Cell HandoverRequests (TCHF) (Excluding Directed Retry)(1800/1900-900/850) + Outgoing External Inter-Cell HandoverRequests (TCHH) (Excluding Directed Retry)(1800/1900-900/850) + Outgoing External Inter-Cell HandoverRequests (Directed Retry) (1800/1900-900/850) - (Failed IncomingInternal 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 IncomingExternal Inter-Cell Handovers (TCH) (1800/1900-900/850) +Failed Outgoing External Inter-Cell Handovers (SDCCH)(1800/1900-900/850) + Failed Outgoing External Inter-CellHandovers (TCHF) (1800/1900-900/850) + Failed OutgoingExternal 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 HandoverRequests (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 HandoverRequests (SDCCH) (Excluding Directed Retry)(1800/1900-900/850) + Outgoing External Inter-Cell HandoverRequests (TCHF) (Excluding Directed Retry)(1800/1900-900/850) + Outgoing External Inter-Cell HandoverRequests (TCHH) (Excluding Directed Retry)(1800/1900-900/850) + Outgoing External Inter-Cell HandoverRequests (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 NoTCH Assignment) x (1-TCH Call Drop Rate(includingHandovers)) 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 cellsand the network. These KPIs can serve as references for capacity expansion. The traffic volumeKPIs help to obtain the ratio of busy-hour traffic to idle-hour traffic, to evaluate the utilizationof 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.
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) + MeanNumber of Busy TCHs (TCHH) (900/850 Cell) + Mean Number ofBusy 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) (1800/1900Cell)
AssociatedOriginal 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 AvailabilityNOTE
The TRX Availability helps to calculate the number of the available TRXs in theBM.
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 ofAvailable Channels (SDCCH) (900/850 MHz Cell) + Total Number ofAvailable Channels (SDCCH) (1800/1900 MHz Cell)) / Sampled Numberof Channel StateMean Number of Dynamically Configured Channels (SDCCH) = (Numberof Dynamically Configured Channels (SDCCH) (900/850 Cell) + Numberof Dynamically Configured Channels (SDCCH) (1800/1900 Cell)) /Sampled Number of Channel State
Measurement Point
BSC
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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 thenetwork 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, toevaluate 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
AssociatedOriginal KPIs
Total bytes of uplink GPRS RLC data blocks = Total Number of UplinkRLC Data Blocks Using CS1 x 23 + Total Number of Uplink RLCData Blocks Using CS2 x 34 + Total Number of Uplink RLC DataBlocks Using CS3 x 40 + Total Number of Uplink RLC Data BlocksUsing 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
AssociatedOriginal KPIs
Total bytes of downlink GPRS RLC data blocks = Total Number ofDownlink RLC Data Blocks Using CS1 x 23 + Total Number ofDownlink RLC Data Blocks Using CS2 x 34 + Total Number ofDownlink RLC Data Blocks Using CS3 x 40 + Total Number ofDownlink 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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AssociatedOriginal KPIs
Total bytes of uplink EGPRS RLC data blocks = Total Number ofUplink EGPRS MCS1 RLC Data Blocks x 22 + Total Number ofUplink EGPRS MCS2 RLC Data Blocks x 28 + Total Number ofUplink EGPRS MCS3 RLC Data Blocks x 37 + Total Number ofUplink EGPRS MCS4 RLC Data Blocks x 44 + Total Number ofUplink EGPRS MCS5 RLC Data Blocks x 56 + Total Number ofUplink EGPRS MCS6 RLC Data Blocks x 74 + Total Number ofUplink EGPRS MCS7 RLC Data Blocks x 56 + Total Number ofUplink EGPRS MCS8 RLC Data Blocks x 68 + Total Number ofUplink 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
AssociatedOriginal KPIs
Total bytes of downlink EGPRS RLC data blocks = Total Number ofDownlink EGPRS MCS1 RLC Data Blocks x 22 + Total Number ofDownlink EGPRS MCS2 RLC Data Blocks x 28 + Total Number ofDownlink EGPRS MCS3 RLC Data Blocks x 37 + Total Number ofDownlink EGPRS MCS4 RLC Data Blocks x 44 + Total Number ofDownlink EGPRS MCS5 RLC Data Blocks x 56 + Total Number ofDownlink EGPRS MCS6 RLC data blocks x 74 + Total Number ofDownlink EGPRS MCS7 RLC Data Blocks x 56 + Total Number ofDownlink EGPRS MCS8 RLC Data Blocks x 68 + Total Number ofDownlink 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 Bytesof Uplink LLC PDUs Sent x 8 / 1024
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AssociatedOriginal KPIs
None
MeasurementPoint
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 throughput
Table 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)
AssociatedOriginal KPIs
None
MeasurementPoint
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 + DownlinkEGPRS 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 ina cell. If the RLC data block retransmission rate in a cell is high, the quality of the radiotransmission links in the cell is poor. Therefore, take corresponding measures, such as RFoptimization.
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 bythe MS x 100%
AssociatedOriginal KPIs
Number of uplink RLC data blocks received by the BSS = Number ofValid Uplink RLC Data Blocks Using CS1 + Number of Valid UplinkRLC Data Blocks Using CS2 + Number of Valid Uplink RLC DataBlocks Using CS3 + Number of Valid Uplink RLC Data Blocks UsingCS4Number of uplink RLC data blocks sent by the MS = Total Number ofUplink 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 DataBlocks sent by the BSS x 100%
AssociatedOriginal KPIs
Number of Downlink RLC Data Blocks received by the MS = TotalNumber of Valid RLC Downlink Data Blocks Using CS1 + TotalNumber of Valid RLC Downlink Data Blocks Using CS2 + TotalNumber of Valid RLC Downlink Data Blocks Using CS3 + TotalNumber of Valid RLC Downlink Data Block Using CS4Number of Downlink RLC Data Blocks sent by the BSS = TotalNumber 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 UplinkEGPRS RLC Data Blocks received by the BSS / Number of UplinkEGPRS 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 BlocksNumber of Uplink EGPRS RLC Data Blocks sent by the MS = TotalNumber 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 ofDownlink 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 DataBlocks + Total Number of Valid Downlink EGPRS MCS2 RLC DataBlocks + Total Number of Valid Downlink EGPRS MCS3 RLC DataBlocks + Total Number of Valid Downlink EGPRS MCS4 RLC DataBlocks + Total Number of Valid Downlink EGPRS MCS5 RLC DataBlocks + Total Number of Valid Downlink EGPRS MCS6 RLC DataBlocks + Total Number of Valid Downlink EGPRS MCS7 RLC DataBlocks + Total Number of Valid Downlink EGPRS MCS8 RLC DataBlocks + Total Number of Valid Downlink EGPRS MCS9 RLC DataBlocksNumber of Downlink EGPRS RLC Data Blocks sent by the BSS = TotalNumber 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. PoorPS 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 TBFEstablishment / Number of Uplink TBF Establishment Attempts x 100%
AssociatedOriginal KPIs
Number of Successful Uplink TBF Establishment = Number ofSuccessful Uplink GPRS TBF Establishments + Number ofSuccessful Uplink EGPRS TBF EstablishmentsNumber of Uplink TBF Establishment Attempts = Number of UplinkGPRS TBF Establishment Attempts + Number of Uplink EGPRSTBF 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 Attemptsx 100%
AssociatedOriginal KPIs
Number of Successful Downlink TBF Establishment= Number ofSuccessful Downlink GPRS TBF Establishments + Number ofSuccessful Downlink EGPRS TBF EstablishmentsNumber of Downlink TBF Establishment Attempts = Number ofDownlink GPRS TBF Establishment Attempts + Number ofDownlink 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 UplinkEGPRS TBF Establishments/Number of Uplink EGPRS TBFEstablishment 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 SuccessfulDownlink EGPRS TBF Establishments/Number of Downlink EGPRSTBF Establishment Attempts x 100%
AssociatedOriginalKPIs
None
Measurement 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 TBFEstablishment Failures due to No Channel / Number of Uplink TBFEstablishment Attempts x 100%
AssociatedOriginal KPIs
Number of Uplink TBF Establishment Failures due to No Channel =Number of Failed Uplink GPRS TBF Establishments due to NoChannel + Number of Failed Uplink EGPRS TBF Establishmentsdue to No ChannelNumber of Uplink TBF Establishment Attempts = Number of UplinkGPRS TBF Establishment Attempts + Number of Uplink EGPRSTBF 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 TBFEstablishment Failures due to No Channel / Number of Downlink TBFEstablishment Attempts x 100%
AssociatedOriginal KPIs
Number of Downlink TBF Establishment Failures due to No Channel =Number of Failed Downlink GPRS TBF Establishments due to NoChannel + Number of Failed Downlink EGPRS TBF Establishmentsdue to No ChannelNumber of Downlink TBF Establishment Attempts = Number ofDownlink GPRS TBF Establishment Attempts + Number ofDownlink 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 UplinkEGPRS TBF Establishments due to No Channel / Number of UplinkEGPRS 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 FailedDownlink EGPRS TBF Establishments due to No Channel / Numberof 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 networkresource and the busy states of services. Thus, these KPIs can be used to guide networkexpansion.
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 DataBlocks Received on Uplink PDTCH/PACCH / Total Number ofUplink 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 DataBlocks Sent on Downlink PDTCH/PACCH / Total Number ofDownlink 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 TrafficReclaimed SuccessRate
Table 8-4 Pre-empted Dynamic PDCH Carrying Packet Traffic Reclaimed SuccessRate
CounterPre-empted Dynamic PDCH Carrying Packet Traffic ReclaimedSuccessRate
Description Pre-empted Dynamic PDCH Carrying Packet Traffic ReclaimedSuccessRate = 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 TBFEstablishment Failures due to MS No Response / Number ofGPRS&EGPRS TBF Establishment Attempts x 100%
AssociatedOriginal KPIs
Number of GPRS&EGPRS TBF Establishment Failures due to MS NoResponse = Number of Failed Uplink GPRS TBF Establishments dueto MS No Response + Number of Failed Downlink GPRS TBFEstablishments due to MS No Response + Number of Failed UplinkEGPRS TBF Establishments due to MS No Response + Number ofFailed Downlink EGPRS TBF Establishments due to MS NoResponseNumber of GPRS&EGPRS TBF Establishment Attempts = Number ofUplink GPRS TBF Establishment Attempts + Number of DownlinkGPRS TBF Establishment Attempts + Number of Uplink EGPRSTBF Establishment Attempts + Number of Downlink EGPRS TBFEstablishment 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 RLCPayload + Downlink EGPRS RLC Payload) / (measurement period x60) / 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) / AverageNumber 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 calldrop rates. These KPIs indicate the capability of providing continuous services by the networkand are directly related to user satisfaction. Thus, an increase in call drop rate directly leads toa 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 TBFAbnormal Release / Number of Successful Uplink GPRS TBFEstablishment x 100%
AssociatedOriginal KPIs
Number of Uplink GPRS TBF Abnormal Release = Number of UplinkGPRS TBF Abnormal Releases due to N3101 Overflow (MS NoResponse) + Number of Uplink GPRS TBF Abnormal Releases dueto N3103 Overflow (MS No Response) + Number of Uplink EGPRSTBF Abnormal Releases due to N3101 Overflow (MS NoResponse) + Number of Uplink EGPRS TBF Abnormal Releases dueto N3103 Overflow (MS No Response)Number of Successful Uplink GPRS TBF Establishment = Number ofSuccessful Uplink GPRS TBF Establishments + Number ofSuccessful 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 AbnormalRelease due to N3105 Overflow / Number of Successful Downlink TBFEstablishment x 100%
AssociatedOriginal KPIs
Number of Downlink TBF Abnormal Release due to N3105 Overflow= Number of Downlink GPRS TBF Abnormal Releases due to N3105Overflow + Number of Downlink EGPRS TBF Abnormal Releasesdue to N3105 OverflowNumber of Successful Downlink TBF Establishment = Number ofSuccessful Downlink GPRS TBF Establishments + Number ofSuccessful 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 TBFAbnormal Releases due to N3101 Overflow (MS No Response) +Number of Uplink EGPRS TBF Abnormal Releases due to N3103Overflow (MS No Response)) / Number of Successful Uplink EGPRSTBF 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 ofSuccessful 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 thenetwork. 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 sendsan ICMP packet of the Return Request type and the time when thereceiving end responds with an ICMP packet of the ReturnAcknowledgment type. Two types of PING delay are available: initialPING delay and consecutive PING delay.l Initial PING delay
If the interval between two consecutive PING operations is longerthan 9000 ms, the MS enters the Packet Idle Mode. If the PINGoperation is re-initiated, the TBF established on the CCCH is used.Therefore, the initial PING delay is longer.
l Consecutive PING delayIf the interval between two consecutive PING operations is shorterthan 500 ms, the PCU uses the uplink delay release or downlink delayrelease policy. This avoids the TBF establishment for the followingPING operations or the TBF re-establishment on the PACCH. ThisPING delay is relatively shorter.
AssociatedOriginal KPIs
None
MeasurementPoint
BSC
Test Method l Use a dedicated tool (for example, TEMS) and edit the commands toperform the test.
l Use the PING command attached the operating system to perform thetest.
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 MSsends an Activate PDP Context Request message to the network and thetime when the network responds with an Activate PDP Context Acceptmessage.
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 MSsends an Attach Request message to the network and the time when thenetwork 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 Services
Table 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 cellreselection is initiated and the time when a Channel Request message isinitiated by the MS. This interval can be measured manually through thetest 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 MSinitiates a cell reselection from a 2G cell to a 3G cell and the time whenthe MS initiates a Channel Request message in the new cell. This intervalcan 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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11 PS End-to-End Quality KPIs
About This Chapter
This describes the PS end-to-end quality KPIs. They involve the performance factors associatedwith the terminals, the radio access network, and the core network. Now, the main performanceproblem 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 usersatisfaction.
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 secondby the GPRS system. The GPRS throughput focuses mainly on thethroughput at the RLC/MAC layer and the throughput at the applicationlayer. The test of the throughput at the RLC/MAC layer is difficult.Therefore, the throughput we discuss generally refers to the throughputat the application layer. The throughput at the RLC/MAC layer isgenerally 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; formultiple 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 secondby the EDGE system. The EDGE throughput focuses mainly on thethroughput at the RLC/MAC layer and the throughput at the applicationlayer. The test of the throughput at the RLC/MAC layer is difficult.Therefore, the throughput we discuss generally refers to the throughputat the application layer. The throughput at the RLC/MAC layer isgenerally 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; formultiple cells, the drive test (DT) method is adopted.
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