training material_wcdma ran kpi introduction

7/30/2019 Training Material_WCDMA RAN KPI Introduction

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WCDMA RAN KPI Introduction

-UMTS Radio Network Planning & Optimization Dept


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Contents

KPI Overview

WCDMA RAN KPI Definition andMeasurement Methods

Libya WCDMA Network KPI

Values


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What is KPI?

KPI is Key Performance Indicator.

The general characters of KPI

Measurability Comparability Integrality Applicability

KPI Overview


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RAN KPI Category

Coverage Probability

Coverage Class Mobility Class

RNC Soft HandoverSuccess Ratio

Inter-Frequency Hard

Handover Success Ratio

Intersystem Hard


(CS domain and PS

domain)

QoS Class

RRC Connection Setup

Success Ratio RAB Setup Success Ratio

Call Setup Success Ratio

Drop Call Ratio

Average UL/DL Throughput

RTT Ping with 32Bytes

Resource Usage Class

Trouble Cell Ratio

Busy Cell Ratio Sleeping Cell Ratio

Capacity Class

CS Capacity PS Capacity

Cell UL Load Factor

Block Call Ratio

RAN KPI Class


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Contents

KPI Overview

WCDMA RAN KPI Definition andMeasurement Methods


Values


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Statistic Period

Statistic AreaClutter-wise

Indoor or OutdoorBOTH

Measurement MethodsDT or CQT

Index MeaningThe coverage probability reflect the RF coverage

strength and RF signal quality.

Indicator

Description

Indicator

DefinitionSignaling Flow

Indicator

Extension


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Indicator

ExtensionSignaling Flow

Indicator

Definition

Indicator

Description

F=RSCPRand Ec/Io S(NotesRSCP is the Received Pilot Signal Chip Power Ec/Io is the received pilot

signal qualityR and S is the threshold for the RSCP and Ec/Io calculation.When these two conditions satisfiedF=1; otherwise F=0)

Coverage Probability is defined as

the percentage of the samples

whose F=1 to the all measured samples

(NoteUnreasonable samples are not included

The R and S are different to different service


t

t R ti


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onnect on etup uccess Ratio

(Service RelatedIndicator

Description

Indicator


Indicator

Extension

Statistic Period :15 Mins,30 Mins,1 Hour. 1Day.

Statistic Areacell-wise

Indoor or OutdoorBOTH

Measurement Methodcalculate based on the OMC Counters

value

Indicator Meaningthis indicator reflect the accessibility of the

service of the Cell and RNC

t

t R ti


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Indicator

Description

Indicator


Indicator

Extension

RRC Connection Setup Success RatioService RelatedRRC Connection Setup Complete TimesService Related

/RRC Connection Setup Request TimesService Related100%

onnect on etup uccess Ratio(Service Related

t

t R ti


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UE RNC CN

RRC Connection Request


RRC Connection Complete

DT Message Exchange

Radio Bearer Setup

RAB Assignment Request

Established

Radio Bearer Setup Complete

RAB Assignment Response

RRC Connection SetupRequest Times


Complete Times

Indicator

Description

Indicator


Indicator

Extension


t

t R ti


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Outgoing Conversation Service RRC Connection Setup Success Ratio

Outgoing Streaming Service RRC Connection Setup Success Ratio

Outgoing Interactive Service RRC Connection Setup Success Ratio Outgoing Background Service RRC Connection Setup Success Ratio

Incoming Conversation Service RRC Connection Setup Success Ratio

Incoming Streaming Service RRC Connection Setup Success Ratio

Incoming Interactive Service RRC Connection Setup Success Ratio

Incoming Background Service RRC Connection Setup Success Ratio

Indicator

Description

Indicator


Indicator

Extension



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RAB Assignment Success Ratio

Statistic Period : 15 Mins,30 Mins,1 Hour. 1 Day.

Statistic Area: cell-wise

Indoor or Outdoor: BOTH

Measurement Method: calculate based on the OMC Counters

value

Indicator Meaning: RAB assignment is the last step of the serviceconnection. If it is successfully assigned, the connection to the

User Panel is Successfully Setup

Indicator

Description

Indicator


Indicator

Extension


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CS RAB Assignment Success Times+PS RAB Assignment Success Times

/(CS RAB Assignment Request Times

PS RAB Assignment Request Times100%

Indicator

Description

Indicator


Indicator

Extension



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UE RNC CN




DT Message Exchange

Radio Bearer Setup


Established



RAB AssignmentRequest Times

RAB AssignmentSuccess Times

Indicator

Description

Indicator


Indicator

Extension


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CS RAB Assignment Success Ratio

PS RAB Assignment Success Ratio

AMR RAB Assignment Success Ratio

CS C 64/64 RAB Assignment Success Ratio

PS I 64/64 RAB Assignment Success Ratio



Indicator

Description

Indicator


Indicator

Extension



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Statistic Period: 15 Mins, 30 Mins, 1 Hour. 1 Day.



Measurement Method: calculate based on the OMC counters

value

Indicator Meaning: this indicator reflect the accessibility of the

service of the Cell and RNC

Indicator

Description

Indicator


Indicator

Extension


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RRC Connection Setup Success Ratio (Service Related)RAB Assignment Success Ratio100%

Indicator

Description

Indicator


Indicator

Extension



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UE RNC CN




DT Message Exchange

Radio Bearer Setup


Established




Success Ratio

RAB AssignmentSuccess Ratio

Indicator

Description

Indicator


Indicator

Extension



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AMR Call Setup Success Ratio

CS C 64/64 Call Setup Success Ratio

PS I 64/64 Call Setup Success Ratio



PS S 64/64 Call Setup Success Ratio

Indicator

Description

Indicator


Indicator

Extension



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Call Drop Ratio

Statistic Period: 15 Mins, 30 Mins, 1 Hour. 1Day.



Measurement Method: calculate based on the OMC Counters

value

Indicator Meaning: this indicator reflect the Retainability of the

network, it is one of the most important indicators of thecustomers experience.

Indicator

Description

Indicator


Indicator

Extension


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Call Drop Ratio

Call Drop Ratio

RNC Triggered CS RAB Release TimesRNC Triggered CS Iu Release TimesRNC Triggered PS RAB Release Times

+RNC Triggered PS Iu Release Times/(CS RAB Assignment Success TimesPS RAB Assignment Success Times100%

Indicator

Description

Indicator


Indicator

Extension


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Call Drop Ratio

CN

RAB

RELEASE REQUEST

RNC

CNRNC

IU RELEASE REQUEST

RNC Triggered RAB ReleaseTimes, it includes CS and/orPS RAB

RNC Triggered Iu Release Times,When UE is lost or it is inactive, orthe UTRAN failure is happened,RNC will send the Iu ReleaseRequest to CN

Indicator

Description

Indicator


Indicator

Extension


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Call Drop Ratio

CS Call Drop Ratio

PS Call Drop Ratio

AMR Call Drop Ratio

CS C 64/64 Call Drop Ratio

PS I 64/64 Call Drop Ratio



Indicator

Description

Indicator


Indicator

Extension

o t an over uccess Ratio


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o t an over uccess Ratio(Including Softer Handover)

Statistic Period: 15 Mins, 30Mins,1Hour. 1Day.

Statistic Area: RNC-wise



value

Indicator Meaning: this indicator reflect the soft handover mobility

in the RNC control area.

Indicator

Description

Indicator


Indicator

Extension



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Soft Handover Success Ratio

Soft Handover Requirement TimesSoft Handover Failure Times

/Soft Handover Requirement Times100%

Indicator

Description

Indicator


Indicator

Extension

o t an over uccess Ratio(Including Softer Handover



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UE UTRAN

ACTIVE SET UPDATE

ACTIVE SET UPDATE COMPLETE

A

B

Success flow

Soft HandoverRequirement Times

Soft Handover Failure Times. If the

handover is failed, RNC will received

this Message. And if the Update

Complete Message is not replied in a

certain time delay, it will be counted to

the handover failure time.

Failure FlowUE UTRAN

ACTIVE SET UPDATE

ACTIVE SET UPDATE FAILURE

A

B

Indicator

Description

Indicator


Indicator

Extension




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configuration unsupported failure caused handover failure ratio

physical channel failure caused handover failure ratio

incompatible simultaneous reconfiguration caused handover failure ratio

protocol error caused handover failure ratio cell update occurred caused handover failure ratio

invalid configuration caused handover failure ratio

No reply caused handover failure ratio

Indicator

Description

Indicator


Indicator

Extension


I t F H d H d

S R ti


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Inter-Frequency Hard HandoverSuccess Ratio

Statistic Period: 15Mins, 30Mins,1Hour. 1Day.




value

Indicator Meaning: this indicator reflect the hard handover

mobility in the RNC control area.

Indicator

Description

Indicator


Indicator

Extension


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Inter-Frequency Hard Handover Success Ratio

Inter-Frequency Hard Handover Requirement Times Inter-Frequency Hard Handover Failure Times

/ Inter-Frequency Hard Handover Requirement Times100%

Inter-Frequency Hard Handovershould Include

Intra-RNC hard handover and Inter-RNC Hard handover

Indicator

Description

Indicator


Indicator

Extension



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UE SRNC

PHYSICAL CHANNEL RECONFIGURATION

PHYSICAL CHANNEL RECONFIGURATION COMPLETE

UE SRNC

PHYSICAL CHANNEL RECONFIGURATION

PHYSICAL CHANNEL RECONFIGURATION FAILURE

Success Flow

Failure Flow

Inter-frequency hard

handover requirement times

Inter-frequency hard

handover failure times

Intra-

RNCInter

-Frequency

Hard

Handover

Flow

Indicator

Description

Indicator


Indicator

Extension



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UE Serving RNCDrift RNC MSC/SGSN

Decision to execute

Hard Handover

RANAP RANAP

Relocation

Required

RANAP RANAPRelocation Request

RANAP RANAPRelocation Request Ack.

RANAP RANAP

Relocation

Command

RANAP RANAPRelocation Detect

RANAP RANAPRelocation Complete

RANAP RANAP

Iu Release

Command

RANAP RANAP

Iu ReleaseComplete

Node BDrift RNS

Node BServing RNS

NBAP NBAPRadio Link Setup

NBAP NBAPRadio Link Setup Response

RRCRRCPhysical Channel Reconfiguration

NBAP NBAPRadio Link Restore Indication

RRCRRCPhysical Channel Reconfiguration Complete

RRCRRCUE Mobility Information

RRCRRCUE Mobility Information CONFIRM

NBAPNBAPRadio Link Deletion Request

NBAPNBAP

Radio Link Deletion Response

[A1]

[B1]

[A2]

[B2]

Sent from SRNC

Feedback to DRNC

Indicator

Description

Indicator


Indicator

Extension

Inter-

RNC

Inter

-Frequency

Hard

Handover

Flow



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configuration unsupported caused intra-NodeB inter-frequency hard

handover failure ratio

configuration unsupported caused intra-RNC inter-frequency hard


configuration unsupported caused inter-RNC inter-frequency hard


physical channel failure caused intra-NodeB inter-frequency hard


physical channel failure caused intra-RNC inter-frequency hard handover

failure ratio

physical channel failure caused inter-RNC inter-frequency hard handoverfailure ratio

Indicator

Description

Indicator


Indicator

Extension


CS Intersystem Handover Success Ratio


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CS Intersystem Handover Success RatioWCDMA->GSM

Statistic Period: 15Mins,30Mins,1Hour., 1Day.

Statistic Area: cell-wise or RNC-wise


Measurement MethodCalculate based on OMC Counters value

Indicator Meaning: this indicator reflect the intersystem CS

handover mobility, the handover is from WCDMA system to GSMsystem.

Indicator

Description

Indicator


Indicator

Extension



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CS Intersystem Handover Success RatioWCDMA->GSM1CS Intersystem Handover From UTRAN Failure Times

/CS Intersystem Handover From UTRAN Required Times100%

Indicator

Description

Indicator


Indicator

Extension


WCDMA->GPRS

CS Intersystem



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Prepare handover

Handover from

UTRAN command

Prepare handover

response

Relocation

required

Handover complete

Relocation

command

UE RNC CN 2GMSC

UE UTRAN

HANDOVER FROM UTRAN COMMAND

HANDOVER FROM UTRAN FAILURE

CS Intersystem Handover FromUTRAN Required Times

CS Intersystem Handover From UTRAN

Failure Times, if the handover is failed,

RNC will receive this message

Success Flow

Failure Flow

Indicator

Description

Indicator


Indicator

Extension

CS Intersystem Handover Success RatioWCDMA->GPRS



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configuration unsupported caused CS intersystem handover from UTRAN

failure ratio

physical channel failure caused CS intersystem handover from UTRAN failure

ratio

Configuration incomplete caused CS intersystem handover from UTRAN failureratio

protocol error caused CS intersystem handover from UTRAN failure ratio

cell update occurred caused CS intersystem handover from UTRAN failure

ratio invalid configuration caused CS intersystem handover from UTRAN failure

ratio

No reply caused CS intersystem handover from UTRAN failure ratio

Indicator

Description

Indicator


Indicator

Extension

CS Intersystem Handover Success RatioWCDMA->GPRS

PS Intersystem Handover Success Ratio


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Statistic Period: 15Mins, 30Mins,1Hour. 1Day.




value

Indicator Meaning: this indicator reflect the intersystem handover

mobility, the handover is from WCDMA system to GPRS system.

Indicator

Description

Indicator


Indicator

Extension

PS Intersystem Handover Success RatioWCDMA->GPRS



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PS Intersystem Handover Success RatioWCDMA->GPRS1PS Intersystem Handover From UTRAN Failure Times

/PS Intersystem Handover From UTRAN Required Times100%

Indicator

Description

Indicator


Indicator

Extension


PS Intersystem Hand

over Success Ratio


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UE NODEB RNC 3G SGSN

Cell change order from UTRAN Iu Release

Command

RL Del Resp

RL Del Req

Iu Release

Complete

UE UTRAN

CELL CHANGE ORDER FROM UTRAN

CELL CHANGE ORDER FROM UTRAN FAILURE

Success Flow

Failure Flow

PS Intersystem handover fromUTRAN required Times

PS intersystem handover from UTRAN failure

times. If the RNC received this message, or

response message ofIu Release Commandis not

received by RNC, it means the PS handover from

UTRAN is failed.

Indicator

Description

Indicator


Indicator

Extension




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configuration unsupported caused PS intersystem handover from UTRAN failure ratio

physical channel failure caused PS intersystem handover from UTRAN failure ratio

Configuration incomplete caused PS intersystem handover from UTRAN failure ratio

protocol error caused PS intersystem handover from UTRAN failure ratio

cell update occurred caused PS intersystem handover from UTRAN failure ratio

invalid configuration caused PS intersystem handover from UTRAN failure ratio

No reply caused PS intersystem handover from UTRAN failure ratio

Indicator

Description

Indicator


Indicator

Extension




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Indicator Meaning: this indicator reflect the intersystem handover

mobility, the handover is from GRRS system to WCDMA system.

Indicator

Description

Indicator


Indicator

Extension

PS Intersystem Handover Success RatioGPRS->WCDMA



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Indicator

Description

Indicator


Indicator

Extension

PS Intersystem Handover Success RatioGPRS->WCDMA

PS Intersystem Handover to UTRAN Success RationGPRS->WCDMAPS Intersystem Handover to UTRAN Success Times

/PS Intersystem Handover to UTRAN Required Times100%



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UE Serving RNC

1. UE initiated signaling connection establishment

CN

2. Direct Transfer

3. Radio Access Bearer Establishment

The flow of PS intersystemhandover to UTRAN issimilar to the PS setup

flow on the UTRAN Side

RNC received messageRRC Connection Requestfrom UE, the cause isInter-RATcell reselectioncan be used for calculation the PS intersystem handover to UTRANrequired timesRNC received messageRRC Connection Complete (From UE) can

be used for calculation the PS intersystem handover to UTRAN success times

Indicator

Description

Indicator


Indicator

Extension

PS Intersystem Handover Success Ratio(GPRS->WCDMA


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Statistic Period:

Statistic Area:


Measurement MethodStatistic from the logging files of system

signaling

Indicator Meaning: this indicator reflect the integrity of CS 12.2K

service. It is one of the most important indicators of thecustomers experience.

Indicator

Description

Indicator


Indicator

Extension

CS12.2K Service Access Time

CS12 2K Service Access Time


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AverageTCC Alert)TRRC Connection Request

Indicator

Description

Indicator


Indicator

Extension


CS12 2K Service Access Time


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UE RNS MSC Incoming MSC

ISUP IAM

RRC DT(Call Proceeding)

RRC DT(CM Service Request)

CN Signaling Connection Process

Authority and Safe Mode ProcessRRC DT(Setup)

RAB Assignment Process

ISUP ACMRRC DT (Alert)ISUP ANMRRC DT(Connect)

RRC DT(Connect ACK)

Service datatalking

CN Bear Setup ProcessTCC Alert



RRC Connection Setup Complete

TRRC Connection Request

Indicator

Description

Indicator


Indicator

Extension


CS64K Service Access Time


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Statistic Period:

Statistic Area:


Measurement MethodStatistic from the logging files of system

signaling

Indicator Meaning: this indicator reflect the integrity of CS 64K

service. It is one of the most important indicators of thecustomers experience.

Indicator

Description

Indicator


Indicator

Extension



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AverageTRRC Request)TCM Service Request

Indicator

Description

Indicator


Indicator

Extension




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ISUP IAM

UE RNS MSC Incoming MSC

RRC DT (Call Proceeding)

RRC DT(CM Service Request)

CN Signaling Connection Process

Authority and Safe Mode ProcessRRC DT (Setup)

RAB Assignment Process

ISUP ACMRRC DT (Alert)ISUP ANMRRC DT (Connect)

RRC DT (Connect ACK)

Service datatalking

CN bear setup processTCC Alert



RRC Connection Setup Complete

TRRC Connection Request

Indicator

Description

Indicator


Indicator

Extension


Average PS Download Data Rate


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Statistic Period:

Statistic Area:


Measurement MethodDT or

Indicator Meaning: this indicator reflect the integrity of average

PS download data rate. It is one of the most important indicators

of the customers experience.

Indicator

Description

Indicator


Indicator

Extension



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Use the softwareflashgetto download and Upload large files

from and to FTP serverUse the software dumeterto statistic the application layer data rate

for about 15 MinsAnd from the software dumeter we can get

the PS service average transfer data rate

Indicator

Description

Indicator


Indicator

Extension


CS Service Traffic Erlang


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Indicator Meaning: this indicator reflect the traffic Erlang of the CS

conversation service

Indicator

Description

Indicator


Indicator

Extension




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CS Call Duration

TimeRadio Link Setup Response TimeRadio Link Deletion Response

CS Service Traffic ERLTotal CS Call Duration of a Certain Period/3600

Indicator

Description

Indicator


Indicator

Extension




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CS AMR Voice Service Traffic Erlang

CS Video Phone Service Traffic Erlang

Indicator

Description

Indicator


Indicator

Extension


PS Service Throughput


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Indicator Meaning: this indicator reflect the total throughput of PS

service

Indicator

Description

Indicator


Indicator

Extension



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UL PS Service ThroughputRNC Received Total RLC PDU BytesDL PS Service ThroughputRNC Sent Total RLC PDU Bytes

Including user dataRLC head dataretransfer datasignaling dataUnitKbytes

Indicator

Description

Indicator


Indicator

Extension




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PS I 64/64 UL Throughput

PS I 64/64 UL Throughput

PS B 64/64 UL Throughput

PS B 64/64 UL Throughput PS S 64/64 UL Throughput

PS S 64/64 UL Throughput

Indicator

Description

Indicator


Indicator

Extension


UL Interference Load Factor


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Measurement Method: Calculate based on Measurement Report

value

Indicator Meaning: this indicator reflect the cell average UL load

factor in a defined period, it is calculated based on the RTWPvalue on a certain frequency.

Indicator

Description

Indicator


Indicator

Extension




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UL Interference Load FactorUL RTWP measurement valueN0/UL RTWP measurement value100%

Indicator

Description

Indicator


Indicator

Extension


DL Power Load Factor


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Measurement Method: Calculate based on Measurement Report

value

Indicator Meaning: this indicator reflect the cell average DL load

degree in a defined period, it is calculated based on the basestation Tx power.

Indicator

Description

Indicator


Indicator

Extension



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DL Average Transmitting Carrier Power/Configured DL Maximal Transmitting Carrier Power100%

Indicator

Description

Indicator


Indicator

Extension

Trouble Cell Ratio


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Statistic Area: RNC-wise



Indicator Meaning: this indicator reflect the ratio of dead cells to

total cells, it is an assistant to analyze the QoS of whole network.

Indicator

Description

Indicator


Indicator

Extension

Trouble Cell Ratio

Trouble Cell Ratio


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Trouble Cell Ratio

Trouble Cell Number/ Active Cell Number100%

Trouble Cell Ratio

Trouble Cell is the cell whose drop call ratio>a or Call Setup Success Ratio


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Busy Cell Ratio





Indicator Meaning: this indicator reflect the ratio of busy cells to


Indicator

Description

Indicator


Indicator

Extension

Busy Cell Ratio


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Busy Cell Ratio

Busy Cell Number/Active Cell Number100

Busy cell is the cell whose DL Power Load factor>cor Code Resource Occupation Factor>d

Indicator

Description

Indicator


Indicator

Extension

Busy Cell Ratio

Sleeping Cell Ratio


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Sleeping Cell Ratio





Indicator Meaning: this indicator reflect the ratio of idle cells to


Indicator

Description

Indicator


Indicator

Extension

Sleeping Cell Ratio


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Sleeping Cell Ratio

Sleeping Cell Number/Active Cell Mumber100%

Sleeping Cell is the cell whose DL power load factor


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Contents

KPI Overview

WCDMA RAN KPI Definition and

Measurement Methods


Values

Libya Large Scale Commercial Application


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Libya Large Scale Commercial Application

1.8 Million lines GSM network, MSS adopted ZTEs

WCDMA R4 CN based on V3 platforms, finished at the

end of 2005.

1 Million lines WCDMA, covering the capital, Tripoli and

the other 13 main cities, can serve 90% of the population

in Libya.

Fast growth of subscriber: The number of subscribers

broke through 300,000 at the end of 2006.

Network Scale

R4 architecture; GSM and WCDMA hybrid network;

support 2G/3G handover and roaming

Both Pre-paid and Post-paid services are available

Thousands of dual mode mobile subscribers can

smoothly migrate to 3G network

Within 3 months, finished the construction and

optimization of 1.1 M lines 3G network

HSDPA in scale application, smoothly evolve to HSPA+

Speciality

one of the few profitable

WCDMA large Scale networks

Libya

Libya WCDMA Network Dimensioning


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Network KPIs indicate the excellent of Libyanas network:

Phase1Tripoli260 sites

Phase2 Highway and 5 cities, 91 sites

Phase3 8 cities, 119 sites

ZTE The Most Reliable Partner of 3G Operator

Libya WCDMA Network Dimensioning

Libya WCDMA Network Coverage


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RSCP threshold level is -85dBm,coverage probability is 95.19%

In dense urban, the planning objectis CS64K continuous coverage with

CS64K. The road test for network

coverage:

Ec/Io threshold level is -12dB,

coverage probability is 99.09%

ZTE Excellent Network Quality

Libya WCDMA Network Coverage

Current KPI from OMCR


72/75

0

10

20

30

40

50

60

70

80

90

100

9-2 9-3 9-4 9-5 9-6 9-7 9-8 9-9 9-10 9-11 9-12 9-13 9-14 9-15RRC Setup Success Rate(for service)(%)RAB Setup Success Rate(%)Radio Access Success Rate(%)

Current KPI from OMCR (cont.)


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( )

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

9-2 9-3 9-4 9-5 9-6 9-7 9-8 9-9 9-10 9-11 9-12 9-13 9-14 9-15

CS Call Drop Rate(%)



74/75

88

90

92

94

96

98

100

9-2 9-3 9-4 9-5 9-6 9-7 9-8 9-9 9-10 9-11 9-12 9-13 9-14 9-15

SHO Success Rate(%) CS iRATHO Success Rate(%)



75/75

training material_wcdma ran kpi introduction

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