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HUAWEI BSC6000 Base Station Subsystem
V900R008
BSS KPI Reference
Issue 01
Date 2008-4-15
Part Number
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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
Contents
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9.4 Downlink EGPRS TBF Drop Rate..................................................................................................................9-3
10 PS End-to-End Delay KPIs...................................................................................................10-1
10.1 PING Delay.................................................................................................................................................10-2
10.2 Mean Delay of PDP Activation...................................................................................................................10-210.3 Mean Delay of Attachment.........................................................................................................................10-2
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
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 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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Convention Description
[ x | y | ... ] * Alternative items are grouped in braces and separated by vertical
bars.A minimum of zero or a maximum of all can be selected.
4. GUI Conventions
Convention Description
Boldface Buttons,menus,parameters,tabs,window,and dialog titles are in
boldface. For example,clickOK.
> Multi-level menus are in boldfaceand separated by the ">" signs.
For example,choose File > Create > Folder .
5. Keyboard Operation
Convention Description
Key Press the key.For example,press Enter and press Tab.
Key1+Key2 Press the keys concurrently.For example,pressing Ctrl+Alt+A
means the three keys should be pressed concurrently.
Key1,Key2 Press the keys in turn.For example,pressing Alt,A means the 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.
1 Introduction to KPI
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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.
1 Introduction to KPI
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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
2 CS Accessibility KPIs
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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%
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 to
Busy TCH (Traffic Channel)) / (TCH Seizure Requests (Signaling
Channel) + TCH Seizure Requests (Traffic Channel) + TCH SeizureRequests in TCH Handovers (Traffic Channel)) x 100%
AssociatedOriginal KPIs
None
MeasurementPoint
BSC
2.7 TCH Seizure Success Rate
Table 2-7 TCH Seizure Success Rate
Counter TCH Seizure Success Rate
Description
TCH Seizure Success Rate = (Successful TCH Seizures (Signaling
Channel) + Successful TCH Seizures (Traffic Channel) + Successful TCH
Seizures in TCH handovers (Traffic Channel)) / (TCH Seizure Requests
(Signaling Channel) + TCH Seizure Requests (Traffic Channel) + TCH
Seizure Requests in TCH Handovers (Traffic Channel)) x 100%
Associate
d OriginalKPIs
None
MeasurementPoint
BSC
2.8 Call Establishment Success Rate
Table 2-8 Call establishment success rate
Counter Call Establishment Success Rate
Definition Call Establishment Success Rate = Successful Assignments/(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%
2 CS Accessibility KPIs
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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)) x
100%
AssociatedOriginal KPIs
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)
3.15 Dual-Band Handover Success Rate(1800/1900-900/850)
3.16 Call Success Rate
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3.1 TCH Call Drop Rate(including Handovers)
Table 3-1 TCH Call Drop Rate(including Handovers
Counter TCH Call Drop Rate(including Handovers
Description
TCH Call Drop Rate(including Handovers) = Call Drops on TCH /
(Successful TCH Seizures (Signaling Channel) + Successful TCH
Seizures (Traffic Channel) + Successful TCH Seizures in TCH handovers
(Traffic Channel)) x 100%
AssociatedOriginalKPIs
None
Measurement Point
BSC
3.2 TCH Call Drop Rate (Excluding Handover)
Table 3-2 TCH call drop rate (excluding handover)
Counter TCH Call Drop Rate (Excluding Handover)
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%
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
3 CS Retainability KPIs
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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
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%
Associated OriginalKPIs
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%
AssociatedOriginal KPIs
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%
AssociatedOriginal KPIs
None.
MeasurementPoint
BSC
3 CS Retainability KPIs
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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%
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-Cell
Handovers / (Internal Intra-Cell Handover Requests +
Incoming Internal Inter-Cell Handover Requests x 100%
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 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%
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-Cell
Handover Responses x 100%
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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-Cell
Handover Commands x 100%
AssociatedOriginalKPIs
None
Measurement Point
BSC
3.14 Dual-Band Handover Success Rate(900/850-1800/1900)
Table 3-14 Dual-Band Handover Success Rate(900/850-1800/1900)
Counter Dual-Band Handover Success Rate(900/850-1800/1900)
Description
Dual-Band Handover Success Rate(900/850-1800/1900) = Successful Dual-
Band Handovers (900M/850M-1800M/1900M) / Dual-Band Handover
Requests (900M/850M-1800M/1900M) x 100%
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AssociatedOriginalKPIs
Successful Dual-Band Handovers (900M/850M-1800M/1900M) =
Incoming Internal Inter-Cell Handover Requests (SDCCH)
(900/850-1800/1900) + Incoming Internal Inter-Cell Handover Requests
(TCH) (900/850-1800/1900) + Incoming External Inter-Cell Handover
Requests (SDCCH) (900/850-1800/1900) + Incoming External Inter-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
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%
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AssociatedOriginal KPIs
Successful Dual-Band Handovers (1800M/1900M900M/850M) =
Incoming Internal Inter-Cell Handover Requests (SDCCH)
(1800/1900-900/850) + Incoming Internal Inter-Cell Handover
Requests (TCH) (1800/1900-900/850) + Incoming External Inter-
Cell Handover Requests (SDCCH) (1800/1900-900/850) +Incoming External Inter-Cell Handover Requests (TCH)
(1800/1900-900/850) + Outgoing External Inter-Cell Handover
Requests (SDCCH) (Excluding Directed Retry)
(1800/1900-900/850) + Outgoing External Inter-Cell Handover
Requests (TCHF) (Excluding Directed Retry)
(1800/1900-900/850) + Outgoing External Inter-Cell Handover
Requests (TCHH) (Excluding Directed Retry)
(1800/1900-900/850) + Outgoing External Inter-Cell Handover
Requests (Directed Retry) (1800/1900-900/850) - (Failed Incoming
Internal Inter-Cell Handovers (SDCCH) (1800/1900-900/850) +
Failed Incoming Internal Inter-Cell Handovers (TCH)
(1800/1900-900/850) + Failed Incoming External Inter-CellHandovers (SDCCH) (1800/1900-900/850) + Failed Incoming
External Inter-Cell Handovers (TCH) (1800/1900-900/850) +
Failed Outgoing External Inter-Cell Handovers (SDCCH)
(1800/1900-900/850) + Failed Outgoing External Inter-Cell
Handovers (TCHF) (1800/1900-900/850) + Failed Outgoing
External Inter-Cell Handovers (TCHH) (1800/1900-900/850) +
Failed Outgoing External Inter-Cell Handovers (Directed Retry)
(1800/1900-900/850))
Dual-Band Handover Requests (1800M/1900M-900M/850M) =
Incoming Internal Inter-Cell Handover Requests (SDCCH)
(1800/1900-900/850) + Incoming Internal Inter-Cell Handover
Requests (TCH) (1800/1900-900/850) + Incoming External Inter-
Cell Handover Requests (SDCCH) (1800/1900-900/850) +
Incoming External Inter-Cell Handover Requests (TCH)
(1800/1900-900/850) + Outgoing External Inter-Cell Handover
Requests (SDCCH) (Excluding Directed Retry)
(1800/1900-900/850) + Outgoing External Inter-Cell Handover
Requests (TCHF) (Excluding Directed Retry)
(1800/1900-900/850) + Outgoing External Inter-Cell Handover
Requests (TCHH) (Excluding Directed Retry)
(1800/1900-900/850) + Outgoing External Inter-Cell Handover
Requests (Directed Retry) (1800/1900-900/850)
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%
AssociatedOriginal KPIs
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)
AssociatedOriginal KPIs
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)
AssociatedOriginalKPIs
None
Measurement Point
BSC
4.3 TCHH Traffic Volume
Table 4-3 TCHH Traffic Volume
Counter TCHH Traffic Volume
Description TCHH Traffic Volume = Mean Number of Busy TCHs (TCHH)(900/850 Cell) + Mean Number of Busy TCHs (TCHH) (1800/1900
Cell)
Associated
Original KPIs
None
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MeasurementPoint
BSC
4.4 TCH Availablity
Table 4-4 TCH Availablity
Counter TCH Availablity
Description TCH Availablity = Mean Number of Available Channels (TCH) /Mean Number of Dynamically Configured Channels (TCH) x 100%
AssociatedOriginal KPIs
None
MeasurementPoint
BSC
4.5 TRX Availability
Table 4-5 TRX Availability
Counter TRX Availability
NOTEThe TRX Availability helps to calculate the number of the available TRXs in the
BM.
Description TRX Availability = Available TRXs / Activated TRXs x 100%
AssociatedOriginal KPIs
None
MeasurementPoint
BSC
4.6 SDCCH Availability
Table 4-6 SDCCH Availability
Counter SDCCH Availability
Description SDCCH Availability = Mean Number of Available Channels (SDCCH) /Mean Number of Dynamically Configured Channels (SDCCH) x 100%
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AssociatedOriginalKPIs
Mean Number of Available Channels (SDCCH) = (Total Number of
Available Channels (SDCCH) (900/850 MHz Cell) + Total Number of
Available Channels (SDCCH) (1800/1900 MHz Cell)) / Sampled Number
of Channel State
Mean Number of Dynamically Configured Channels (SDCCH) = (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
AssociatedOriginal KPIs
Total bytes of uplink GPRS RLC data blocks = Total Number of Uplink
RLC Data Blocks Using CS1 x 23 + Total Number of Uplink RLC
Data Blocks Using CS2 x 34 + Total Number of Uplink RLC Data
Blocks Using CS3 x 40 + Total Number of Uplink RLC Data Blocks
Using CS4 x 54
MeasurementPoint
BSC
5.2 Downlink RLC Payload
Table 5-2 Downlink RLC Payload
Counter Downlink RLC Payload
Description Downlink RLC Payload = Total bytes of downlink GPRS RLC datablocks x 8 / 1024
AssociatedOriginal KPIs
Total bytes of downlink GPRS RLC data blocks = Total Number of
Downlink RLC Data Blocks Using CS1 x 23 + Total Number of
Downlink RLC Data Blocks Using CS2 x 34 + Total Number of
Downlink RLC Data Blocks Using CS3 x 40 + Total Number of
Downlink RLC Data Blocks Using CS4 x 54
MeasurementPoint
BSC
5.3 Uplink EGPRS RLC Payload
Table 5-3 Uplink EGPRS RLC Payload
Counter Uplink EGPRS RLC Payload
Description Uplink EGPRS RLC Payload = Total bytes of uplink EGPRS RLC datablocks x 8 / 1024
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AssociatedOriginal KPIs
Total bytes of uplink EGPRS RLC data blocks = Total Number of
Uplink EGPRS MCS1 RLC Data Blocks x 22 + Total Number of
Uplink EGPRS MCS2 RLC Data Blocks x 28 + Total Number of
Uplink EGPRS MCS3 RLC Data Blocks x 37 + Total Number of
Uplink EGPRS MCS4 RLC Data Blocks x 44 + Total Number ofUplink EGPRS MCS5 RLC Data Blocks x 56 + Total Number of
Uplink EGPRS MCS6 RLC Data Blocks x 74 + Total Number of
Uplink EGPRS MCS7 RLC Data Blocks x 56 + Total Number of
Uplink EGPRS MCS8 RLC Data Blocks x 68 + Total Number of
Uplink EGPRS MCS9 RLC Data Blocks x 74
MeasurementPoint
BSC
5.4 Downlink EGPRS RLC Payload
Table 5-4 Downlink EGPRS RLC Payload
Counter Downlink EGPRS RLC Payload
Description Downlink EGPRS RLC Payload = Total bytes of downlink EGPRS RLCdata blocks x 8 / 1024
AssociatedOriginal KPIs
Total bytes of downlink EGPRS RLC data blocks = Total Number of
Downlink EGPRS MCS1 RLC Data Blocks x 22 + Total Number of
Downlink EGPRS MCS2 RLC Data Blocks x 28 + Total Number of
Downlink EGPRS MCS3 RLC Data Blocks x 37 + Total Number ofDownlink EGPRS MCS4 RLC Data Blocks x 44 + Total Number of
Downlink EGPRS MCS5 RLC Data Blocks x 56 + Total Number of
Downlink EGPRS MCS6 RLC data blocks x 74 + Total Number of
Downlink EGPRS MCS7 RLC Data Blocks x 56 + Total Number of
Downlink EGPRS MCS8 RLC Data Blocks x 68 + Total Number of
Downlink EGPRS MCS9 RLC Data Blocks x 74
MeasurementPoint
BSC
5.5 Mean payload (kbytes) of the uplink data at the LLClayer
Table 5-5 Mean payload (kbytes) of the 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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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 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
AssociatedOriginal KPIs
None
MeasurementPoint
BSC
5.7 Mean Downlink NS_PDUs throughputTable 5-7 Mean Downlink NS_PDUs throughput
Counter Mean Downlink NS_PDUs throughput
Description Mean Downlink NS_PDUs throughput = Total Bytes of NS PDUs Sentby NS Sublayer (NSVC) x 8 / (1024 x measurement period x 60)
AssociatedOriginal KPIs
None
Measurement
Point
BSC
5.8 Packet data rate on air interface
Table 5-8 Packet data rate on air interface
Counter Packet data rate on air interface
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Description Packet data rate on air interface = (Uplink RLC Payload + UplinkEGPRS RLC Payload) / (Downlink RLC Payload + Downlink
EGPRS RLC Payload)
AssociatedOriginal KPIs
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%
AssociatedOriginal KPIs
Number of uplink RLC data blocks received by the BSS = Number of
Valid Uplink RLC Data Blocks Using CS1 + Number of Valid Uplink
RLC Data Blocks Using CS2 + Number of Valid Uplink RLC Data
Blocks Using CS3 + Number of Valid Uplink RLC Data Blocks Using
CS4
Number of uplink RLC data blocks sent by the MS = Total Number of
Uplink GPRS RLC Data Blocks
MeasurementPoint
BSC
6.2 Downlink RLC Data Retransmission Rate
Table 6-2 Downlink RLC Data Retransmission Rate
Counter Downlink RLC Data Retransmission Rat (%)
Description Downlink RLC Data Retransmission Rate = Number of Downlink RLCData Blocks received by the MS / Number of Downlink RLC Data
Blocks sent by the BSS x 100%
AssociatedOriginal KPIs
Number of Downlink RLC Data Blocks received by the MS = Total
Number of Valid RLC Downlink Data Blocks Using CS1 + Total
Number of Valid RLC Downlink Data Blocks Using CS2 + Total
Number of Valid RLC Downlink Data Blocks Using CS3 + Total
Number of Valid RLC Downlink Data Block Using CS4
Number of Downlink RLC Data Blocks sent by the BSS = Total
Number of Downlink GPRS RLC Data Blocks
MeasurementPoint
BSC
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6.3 Uplink EGPRS RLC Data Retransmission Rate
Table 6-3 Uplink EGPRS RLC Data Retransmission Rate
Counter Uplink EGPRS RLC Data Retransmission Rate
Description Uplink EGPRS RLC Data Retransmission Rate = Number of UplinkEGPRS RLC Data Blocks received by the BSS / Number of Uplink
EGPRS RLC Data Blocks sent by the MS x 100%
AssociatedOriginal KPIs
Number of Uplink EGPRS RLC Data Blocks received by the BSS =
Total Number of Valid Uplink EGPRS MCS1 RLC Data Blocks +
Total Number of Valid Uplink EGPRS MCS2 RLC Data Blocks +
Total Number of Valid Uplink EGPRS MCS3 RLC Data Blocks +
Total Number of Valid Uplink EGPRS MCS4 RLC Data Blocks +
Total Number of Valid Uplink EGPRS MCS5 RLC Data Blocks +
Total Number of Valid Uplink EGPRS MCS6 RLC Data Blocks +
Total Number of Valid Uplink EGPRS MCS7 RLC Data Blocks +
Total Number of Valid Uplink EGPRS MCS8 RLC Data Blocks +
Total Number of Valid Uplink EGPRS MCS9 RLC Data Blocks
Number of Uplink EGPRS RLC Data Blocks sent by the MS = Total
Number of Uplink EGPRS RLC Data Blocks
MeasurementPoint
BSC
6.4 Downlink EGPRS RLC Data Retransmission Rate
Table 6-4 Downlink EGPRS RLC Data Retransmission Rate
Counter Downlink EGPRS RLC Data Retransmission Rate
Description Downlink EGPRS RLC Data Retransmission Rate = Number ofDownlink EGPRS RLC Data Blocks received by the MS / Number of
Downlink EGPRS RLC Data Blocks sent by the BSS x 100%
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AssociatedOriginal KPIs
Number of Downlink EGPRS RLC Data Blocks received by the MS =
Total Number of Valid Downlink EGPRS MCS1 RLC Data
Blocks + Total Number of Valid Downlink EGPRS MCS2 RLC Data
Blocks + Total Number of Valid Downlink EGPRS MCS3 RLC Data
Blocks + Total Number of Valid Downlink EGPRS MCS4 RLC DataBlocks + Total Number of Valid Downlink EGPRS MCS5 RLC Data
Blocks + Total Number of Valid Downlink EGPRS MCS6 RLC Data
Blocks + Total Number of Valid Downlink EGPRS MCS7 RLC Data
Blocks + Total Number of Valid Downlink EGPRS MCS8 RLC Data
Blocks + Total Number of Valid Downlink EGPRS MCS9 RLC Data
Blocks
Number of Downlink EGPRS RLC Data Blocks sent by the BSS = Total
Number of Downlink EGPRS RLC Data Blocks
MeasurementPoint
BSC
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7 PS Accessibility 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%
AssociatedOriginal KPIs
Number of Successful Uplink TBF Establishment = Number of
Successful Uplink GPRS TBF Establishments + Number of
Successful Uplink EGPRS TBF Establishments
Number of Uplink TBF Establishment Attempts = Number of Uplink
GPRS TBF Establishment Attempts + Number of Uplink EGPRS
TBF Establishment Attempts
MeasurementPoint
BSC
7.2 Downlink Assignment Success Rate
Table 7-2 Downlink Assignment Success Rate
Counter Downlink Assignment Success Rate
Description Downlink Assignment Success Rate = Number of Successful DownlinkTBF Establishment/ Number of Downlink TBF Establishment Attempts
x 100%
AssociatedOriginal KPIs
Number of Successful Downlink TBF Establishment= Number of
Successful Downlink GPRS TBF Establishments + Number of
Successful Downlink EGPRS TBF Establishments
Number of Downlink TBF Establishment Attempts = Number of
Downlink GPRS TBF Establishment Attempts + Number of
Downlink EGPRS TBF Establishment Attempts
MeasurementPoint
BSC
7.3 Uplink EGPRS Assignment Success Rate
Table 7-3 Uplink EGPRS Assignment Success Rate
Counter Uplink EGPRS Assignment Success Rate
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Description
Uplink EGPRS Assignment Success Rate = Number of Successful Uplink
EGPRS TBF Establishments/Number of Uplink EGPRS TBF
Establishment Attempts x 100%
AssociatedOriginalKPIs
None
Measurement Point
BSC
7.4 Downlink EGPRS Assignment Success Rate
Table 7-4 Downlink EGPRS Assignment Success Rate
Counter Downlink EGPRS Assignment Success Rate
Description
Downlink EGPRS Assignment Success Rate = Number of Successful
Downlink EGPRS TBF Establishments/Number of Downlink EGPRS
TBF Establishment Attempts x 100%
AssociatedOriginalKPIs
None
Measurem
ent Point
BSC
7.5 Mean inter-arrival time of packet access requests onCCCH
Table 7-5 Mean inter-arrival time of packet access requests on CCCH
Counter Mean inter-arrival time of packet access requests on CCCH
Description Mean inter-arrival time of packet access requests on CCCH (s) =Average Interval of Packet Access Requests on CCCH (s)