63641906 2 wcdma mobility counters and kpis introduction

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Page 1: 63641906 2 WCDMA Mobility Counters and KPIs Introduction

1

HUAWEI TECHNOLOGIES CO., LTD.

www.huawei.com

HUAWEI Confidential

Security Level:

WCDMA Mobility Counters

and KPIs Introduction

RAN 10 - issue 1.2

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HUAWEI TECHNOLOGIES CO., LTD. Page 2HUAWEI Confidential

� WCDMA handover can be divided into

different categories.

� Different counters and KPI are used for

different handovers.

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� Upon completion of this course, you will be able to:

�Know different handover counter system

�Know different handover KPI

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Mobility Counters and KPI System

� Soft handover

� Softer handover

� Hard handover

� Inter-frequency hard handover

� Intra-frequency hard handover

� Inter RAT handover

� Inter-RAT CS handover

� Inter-RAT PS handover

� HSDPA handover

� Handover between HSDPA cells

� Handover between HSDPA and R99

� HSUPA handover

� Handover between HSUPA cells

� Handover between HSUPA and R99

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Chapter 1 Soft Handover Counters and KPIs Chapter 1 Soft Handover Counters and KPIs

Chapter 2 Hard Handover Counters and KPIsChapter 2 Hard Handover Counters and KPIs

Chapter 3 InterChapter 3 Inter--RAT Handover Counters and KPIsRAT Handover Counters and KPIs

Chapter 4 HSDPA Handover Counters and KPIsChapter 4 HSDPA Handover Counters and KPIs

Chapter 5 HSUPA Handover Counters and KPIsChapter 5 HSUPA Handover Counters and KPIs

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Soft Handover Counter System

� Soft handover procedure

� Measurement report: 1A, 1B, 1C, 1D

� Active set update & Active set update complete:

− 1A, 1B, 1C, (1D)

When receiving an event 1D report, which includes information about

only one cell, the RNC knows that the quality of this cell is better than

that of the serving cell and takes one of the following actions:

If the reported cell is in the monitored set, the RNC decides a soft

handover and adds the cell to the active set.

If the number of cells in the active set has reached the maximum value,

the RNC decides a soft handover and replaces the worst cell in the

active set with the reported cell.

The RNC decides whether the intra-frequency hard handover

conditions are met. If the conditions are met, the RNC initiates an intra-

frequency hard handover.

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Soft Handover Counter System

� Soft handover (RNC)

� SHO Attempts: VS.SHO.Att.RNC at point B

� SHO Successes: VS.SHO.Succ at point C

� Softer HO Attempts: VS.SoHO.ASU.AttRNC at point B

� Softer HO Successes: VS.SoHo.Succ at point C

− Note: The softer handover items above are contained in the soft handover items

� Number of Call Drops due to SHO: VS.SHO.Drop.RNC

− After the RNC sends an ACTIVE SET UPDATE message to a UE during soft

handover, it starts the timer to wait for the response from the UE. If it does not

receive any response upon expiry of the timer, the RNC releases this RRC

connection, which results to call drop.

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Soft Handover Counter System

� Soft handover (RNC)

� UEs with One RL: VS.SHO.AS.1

� UEs with Two RLs Combined: VS.SHO.AS.2Softer

� UEs with Two RLs Uncombined: VS.SHO.AS.2Soft

� UEs with Three RLs Combined: VS.SHO.AS.3Softer

� UEs with Three RLs and Two of them Combined: VS.SHO.AS.3Soft2Softer

� UEs with Three RLs Uncombined: VS.SHO.AS.3Soft

� UEs with Four RLs: VS.SHO.AS.4

� UEs with Five RLs: VS.SHO.AS.5

� UEs with Six RLs: VS.SHO.AS.6

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� Soft handover (Cell)

� Soft handover based on different services

− VS.SHO.AMR.AttOut

− VS.SHO.CS64.AttOut

− VS.SHO.PS64.AttOut

− VS.SHO.PS128.AttOut

− VS.SHO.PS144.AttOut

− VS.SHO.PS384.AttOut

� RL Additions or deletions for Soft Handover

− SHO.AttRLAddUESide at point B SHO.SuccRLAddUESide at point C

− SHO.AttRLDelUESide at point B SHO.SuccRLDelUESide at point C

Soft Handover Counter System

− VS.SHO.AMR.SuccOut

− VS.SHO.CS64.SuccOut

− VS.SHO.PS64.SuccOut

− VS.SHO.PS128.SuccOut

− VS.SHO.PS144.SuccOut

− VS.SHO.PS384.SuccOut

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Soft Handover KPI

� Soft Handover Success Rate

� Formula

�Measurement scope:

− RNC & Cell

�Description

− This KPI can be used to evaluate the soft handover success Rate

in one RNC or one cell, which includes softer handover.

%100*_mptSHOASUAtte

essSHOASUSuccSRSHO =

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Soft Handover KPI

� Soft Handover Success Rate

� Counters (RNC) (P7)

− SHOASUAttempt: VS.SHO.Att.RNC

− SHOASUSuccess: VS.SHO.Succ

� Counters (Cell) (P9)

− SHOASUAttempt:

▪ SHO.AttRLAddUESide

▪ SHO.AttRLDelUESide

− SHOASUSuccess:

▪ SHO.SuccRLAddUESide

▪ SHO.SuccRLDelUESide

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Soft Handover KPI

� Average Active Set Size

� Formula:

�Measurement scope:

− RNC

�Description

− This KPI can be used to evaluate the average active set size

++=

UE

UEUEUEASS

3*2*1* 321

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Soft Handover KPI

� Average Active Size

� Counters (P8)

− UE1: VS.SHO.AS.1

− UE2: VS.SHO.AS.2Softer & VS.SHO.AS.2Soft

− UE3: VS.SHO.AS.3Softer, VS.SHO.AS.3Soft & VS.SHO.AS.3Soft2Softer

− UE: VS.SHO.AS.1 + VS.SHO.AS.2Softer + VS.SHO.AS.2Soft +

VS.SHO.AS.3Softer + VS.SHO.AS.3Soft + VS.SHO.AS.3Soft2Softer

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Number of Measurement Reports

� Number of SHO Event Measurement Reports (Cell)

� VS.RRC.MrRpt.1A

� VS.RRC.MrRpt.1B

� VS.RRC.MrRpt.1C

� VS.RRC.MrRpt.1D

The measurement is triggered at point A as shown in the figure, when the RNC receives a

MEASUREMENT REPORT message from the UE with the event type of 1A, 1B, 1C or 1D and the

measurement object of neighboring cell. In this case, the RNC measures the item in the best cell

that the UE camps on.

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Chapter 1 Soft Handover Counter and KPI Chapter 1 Soft Handover Counter and KPI

Chapter 2 Hard Handover Counter and KPIChapter 2 Hard Handover Counter and KPI

Chapter 3 InterChapter 3 Inter--RAT Handover Counter and KPIRAT Handover Counter and KPI

Chapter 4 HSDPA Handover Counter and KPIChapter 4 HSDPA Handover Counter and KPI

Chapter 5 HSUPA Handover Counter and KPIChapter 5 HSUPA Handover Counter and KPI

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Hard Handover Counter System

� Hard handover procedure

� Inter-frequency hard handover

� Intra-frequency hard handover

The decision of intra-frequency hard handover is based on event 1D, which is an intra-frequency measurement event.

When the RNC decides to initiate a hard handover, it sends a reconfiguration message such as PHYSICAL CHANNEL

RECONFIGURATION message, or a TRANSPORT CHANNEL

RECONFIGURATION message, or a RADIO BEARER

RECONFIGURATION or a RADIO BEARER RELEASE message to the

UE.

If the target cell receives a reconfiguration complete message such as

PHYSICAL CHANNEL RECONFIGURATION COMPLETE message, or a TRANSPORT CHANNEL RECONFIGURATION COMPLETE message, or

a RADIO BEARER RECONFIGURATION COMPLETE or a RADIO

BEARER RELEASE COMPLETE from the UE, it indicates that the hard

handover succeeds.

If the source cell receives a reconfiguration failure message such as

PHYSICAL CHANNEL RECONFIGURATION FAILURE, or a

TRANSPORT CHANNEL RECONFIGURATION FAILURE message, or a RADIO BEARER RECONFIGURATION FAILURE or a RADIO BEARER

RELEASE FAILURE, it indicates that the hard handover fails.

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Intra-frequency Hard Handover Counter System

� Intra-frequency Hard handover (RNC)

� Intra-Frequency Hard Handover Requests: VS.HHO.Att.IntraFreq.RNC at point B

� Successful Intra-Frequency Hard Handovers: VS.HHO.Succ.IntraFreq.RNC at point C

� Intra-frequency Hard handover (Cell)

� Intra NodeB Hard Handover Requests: VS.HHO.AttOutIntraNodeBIntraFreq at point B

� Intra NodeB Successful Hard Handovers: VS.HHO.SuccOutIntraNodeBIntraFreq at point C

� Inter NodeB Hard Handover Requests: VS.HHO.AttOutInterNodeBIntraRNCIntraFreq at point B

� Inter NodeB Successful Hard Handovers: VS.HHO.SuccOutInterNodeBIntraRNCIntraFreq at point C

� Inter RNC Hard Handover Requests: VS.HHO.AttOutInterRNCIntraFreqIur at point B

� Inter RNC Successful Hard Handovers: VS.HHO.SuccOutInterRNCIntraFreqIur at point C

Intra NodeB: Source and Target cell belong in the same NodeB

Inter NodeB: Source and Target cell belong in different NodeBs but in the

same RNC

Inter RNC: Source and Target cell belong in different RNCs

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Inter-frequency Hard Handover Counter System

� Inter-frequency Hard handover (RNC)

� Inter-Frequency Hard Handover Requests: VS.HHO.InterFreq.Att.RNC at point B

� Successful Inter-Frequency Hard Handovers: VS.HHO.InterFreq.Succ.RNC at point C

� Inter-frequency Hard handover (Cell)

� Hard Handover Requests (outgoing): VS.HHO.InterFreq.AttOut at point B

� Successful Hard Handovers (outgoing): VS.HHO.InterFreq.SuccOut at point C

� Hard Handover Requests (incoming): VS.HHO.InterFreqIn.Att at point B

� Successful Hard Handovers (incoming): VS.HHO.InterFreqIn.Succ at point C

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Inter-frequency Hard Handover Counter System

� Inter-frequency Hard Handover execution failure (Cell), due to:

� Configuration unsupported: VS.HHO.InterFreqOut.CfgUnsupp

� Physical channel failure: VS.HHO.InterFreqOut.PyhChFail

� Incompatible simultaneous reconfiguration: VS.HHO.InterFreqOut.FailUSR

� Cell update occurred: VS.HHO.InterFreqOut.CellUpdt

� Invalid configuration: VS.HHO.InterFreqOut.CfgInvalid

Configuration Unsupported: The UE does not support the configuration assigned in “Physical Channel Reconfiguration” message.

Incompatible simultaneous reconfiguration: This reason refers to the case when the reconfiguration procedure is simultaneous with SRNS

relocation and the new configuration is not supported by the UE. (See TS

25.331)

Invalid configuration: Due to some IE in the message “Physical Channel

Reconfiguration” is invalid for the UE.

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Inter-frequency Hard Handover Counter System

� Inter-frequency Hard Handover execution failure (Cell)

� VS.HHO.InterFreqOut.NoReply

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Inter-frequency Hard Handover Counter System

� Inter-frequency Hard handover failure analysis (Cell)

� Code resource allocation failure: VS.HHO.InterFreqOut.DLCodeRej

� UL admission rejection: VS.HHO.InterFreqOut.ULAdmsnDeny

� DL admission rejected: VS.HHO.InterFreqOut.DLAdmsnDeny

Note: The Code resource allocation failure counters are included in the DL admission rejected counters

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Hard Handover Counter System

� Hard handover (RNC)

� Hard Handover Requests (total: Inter + Intra): VS.HHO.Att.RNC at point B

� Successful Hard Handovers (total: Inter + Intra): VS.HHO.Succ.RNC at point C

� Hard handover (Cell)

� Hard Handover requests, incoming (total: Inter + Intra): VS.HHO.Att.In at point B

� Successful Hard Handovers, incoming (total: Inter + Intra): VS.HHO.Succ.In at

point C

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Hard Handover KPI

� Inter-frequency Hard Handover Success Rate

� Formula

�Measurement scope:

− RNC & Cell

�Description

− This KPI can be used to evaluate the inter-frequency hard

handover success Rate in one RNC

%100_ ×=

temptInterHHOAt

ccessInterHHOSuSRInterHHO

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Hard Handover KPI

� Inter-frequency Hard Handover Success Rate

�Counters (RNC) (P18)

− InterHHOAttempt (RNC): VS.HHO.InterFreq.Att.RNC

− InterHHOSuccess (RNC): VS.HHO.InterFreq.Succ.RNC

�Counters (Cell) (P18)

− InterHHOAttempt (Cell): VS.HHO.InterFreq.AttOut

− InterHHOSuccess (Cell): VS.HHO.InterFreq.SuccOut

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Chapter 1 Soft Handover Counter and KPI Chapter 1 Soft Handover Counter and KPI

Chapter 2 Hard Handover Counter and KPIChapter 2 Hard Handover Counter and KPI

Chapter 3 InterChapter 3 Inter--RAT Handover Counter and KPIRAT Handover Counter and KPI

Chapter 4 HSDPA Handover Counter and KPIChapter 4 HSDPA Handover Counter and KPI

Chapter 5 HSUPA Handover Counter and KPIChapter 5 HSUPA Handover Counter and KPI

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Inter-RAT Handover Counter System

� CS Inter-RAT handover procedure

� CS handover from WCDMA to GSM

� This procedure can be divided into two steps:

− Handover preparation:

▪ From point A to point B

− Handover execution

▪ From point C to point D

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Inter-RAT Handover Counter System

� CS Inter-RAT handover counters (RNC)

� Preparation request: VS.SRELOC.AttPrep.IRHOCS at point A

� Preparation success: VS.SRELOC.SuccPrep.IRHOCS at point B

� Execution request: VS.IRATHO.AttCSOut.RNC at point C

� Execution success: VS.IRATHO.SuccCSOut.RNC at point D

� CS Inter-RAT handover counters (Cell)

� Preparation request: IRATHO.AttRelocPrepOutCS at point A

� Preparation success: IRATHO.SuccRelocPrepOutCS at point B

� Execution request: IRATHO.AttOutCS at point C

� Execution success: IRATHO.SuccOutCS at point D

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Inter-RAT Handover Counter System

� CS Inter-RAT handover preparation failure (RNC) is due to

� No response for Relocation Required at point A in figure 1:

VS.SRELOC.Fail.IRATCSOutNRpl

� Failure response for Relocation Required at point A in figure 2:

VS.SRELOC.FailPrep.IRATCSOut

Figure1 Figure2

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Inter-RAT Handover Counter System

� CS Inter-RAT handover preparation failure (RNC)

� Failure response for Relocation Required: VS.SRELOC.FailPrep.IRATCSOut

− Due to Relocation Cancelled:

VS.SRELOC.Fail.IRATCSOutCanc

− Due to TRELOCalloc Expiry :

VS.SRELOC.Fail.IRATCSOutTexp

− Due to Relocation Failure in Target

CN/RNC or Target System:

VS.SRELOC.Fail.IRATCSOutTfai

− Due to Traffic Load In The Target Cell

Higher Than In The Source Cell:

VS.SRELOC.Fail.IRATCSOutTOve

− Due to Unknown Target RNC:

VS.IRATHO.PrepFailCSOut.UkwnRNC

− Due to No Resource Available:

VS.IRATHO.PrepFailCSOut.NoRsrc

− Due to Requested Information Not Available:

VS.IRATHO.PrepFailCSOutReqinfnotavai

VS.SRELOC.Fail.IRATCSOutCanc: E.g.: after “Relocation

Required” UE hangs-up. Then CN sends Relocation Preparation

Failure with IE: “Relocation Canceled”.

VS.SRELOC.Fail.IRATCSOutTfai: For example, when RNC sends

CS inter-RAT handover preparation to MSC, MSC transfers this

request to BSC, but maybe BSC has some problem, so it fails to

prepare the resources for the new user, MSC returns CS inter-rat

handover preparation failure to RNC with reason Failure in Target

CN/RNC.

VS.IRATHO.PrepFailCSOut.UkwnRNC: Unknown target RNC in

this case is the 2G BSC. This reason could occur if the LAC of the

target cell is not configured in the MSC.

VS.IRATHO.PrepFailCSOutReqinfnotavai: For example, RNC tells

BSC about voice encryption mode, but GSM doesn't support this

kind of voice encryption mode; in general, this case seldom happens.

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Inter-RAT Handover Counter System

� CS Inter-RAT handover preparation failure (Cell)

� Failure response for Relocation Required, due to:

− TRELOCalloc expiry:

IRATHO.FailRelocPrepOutCS.TAlExp

− Relocation Failure in Target CN/RNC or

Target System:

IRATHO.FailRelocPrepOutCS.TgtFail

− Relocation not supported in Target RNC or

Target system:

IRATHO.FailRelocPrepOutCS.ReloNoSup

− Traffic Load In The Target Cell Higher Than

In The Source Cell:

IRATHO.FailRelocPrepOutCS.HigherTrafficLod

For the item IRATHO.FailRelocPrepOutCS.TAlExp, the RNC fails to receive a

response upon expiry of the timer (at point A as shown in the figure) from the CN during the CS domain outgoing inter-RAT handover. The RNC measures the item according to the failure cause in the best cell that the UE camps on.

For the items IRATHO.FailRelocPrepOutCS.TgtFail, IRATHO.FailRelocPrepOutCS.ReloNoSup and

IRATHO.FailRelocPrepOutCS.HigherTrafficLod, the measurement is triggered at point A as shown in the figure. When the RNC receives a RELOCATION

PREPARATION FAILURE message, the RNC measures the items according to different failure causes in the best cell that the UE camps on.

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Inter-RAT Handover Counter System

� CS Inter-RAT handover execution failure (RNC)

� Configuration Unsupported:

− VS.IRATHO.FailCSOut.CfgUnRNC

� Physical Channel Failure:

− VS.IRATHO.FailCSOut.PhyFaRNC

� CS Inter-RAT handover execution failure (Cell)

� Configuration Unsupported:

− IRATHO.FailOutCS.CfgUnsupp

� Physical Channel Failure:

− IRATHO.FailOutCS.PhyChFail

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Inter-RAT Handover Counter System

� PS Inter-RAT handover procedure

� PS handover from WCDMA to GPRS

� This procedure can be divided into two steps:

− Handover preparation:

▪ From point A to point B

− Handover execution

▪ From point B to point D

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Inter-RAT Handover Counter System

� PS Inter-RAT handover counters (RNC)

� Preparation request: VS.IRATHO.EvalPSOutUTRAN.RNC at point A

� Preparation success and Execution request: VS.IRATHO.AttPSOutUTRAN.RNC at point B

� Execution success: VS.IRATHO.SuccPSOutUTRAN.RNC at point D

� PS Inter-RAT handover counters (Cell)

� Execution request: IRATHO.AttOutPSUTRAN at point B

� Execution success: IRATHO.SuccOutPSUTRAN at point D

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Inter-RAT Handover Counter System

� PS Inter-RAT handover failure counters (RNC)

� No response for Cell Change Order from UTRAN, and then no Iu release command

from CN: VS.IRATHO.PSOut.NoReply

� Failure response from UE: VS.IRATHO.PSOut.Fail

− Configuration unsupported: VS.IRATHO.PSOut.CfgUnsup

− Physical Channel Failure: VS.IRATHO.PSOut.PhyCHFail

− Unspecified: VS.IRATHO.PSOut.Unpec

VS.IRATHO.PSOut.NoReply: After RNC sends “Cell Change Order

From UTRAN” a timer starts (SET STATETIMER:

RelocIuRelCmdTmr). If the timer expires and RNC will not receive

“Iu Release Command” this counter will count.

VS.IRATHO.PSOut.CfgUnsup: UTRAN instructs the UE to perform

a non-supported Cell Change Order scenario or to use a non-

supported configuration.

VS.IRATHO.PSOut.PhyCHFail: Set up of physical channel failed,

usually due to bad radio environment.

VS.IRATHO.PSOut.Unpec: Any other reason apart from the

previous 2, e.g. protocol error or h/w failure.

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Inter-RAT Handover Counter System

� PS Inter-RAT handover failure counters (Cell)

�Configuration unsupported: IRATHO.FailOutPSUTRAN.CfgUnsupp

�Physical Channel Failure: IRATHO.FailOutPSUTRAN.PhyChFail

IRATHO.FailOutPSUTRAN.CfgUnsupp: UTRAN instructs the UE to

perform a non-supported Cell Change Order scenario or to use a

non-supported configuration.

IRATHO.FailOutPSUTRAN.PhyChFail: Set up of physical channel

failed, usually due to bad radio environment.

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Inter-RAT Handover KPI

� CS Inter-RAT Handover Preparation Success Rate (WCDMA to GSM)

� Formula

�Measurement scope:

− RNC & Cell

�Description

− This KPI can be used to evaluate the CS inter-RAT preparation

handover success Rate in one RNC

%100*_tPpHOAttempCSInterRAT

sPpHOSuccesCSInterRATSRATPpHOCSInterreR =

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Inter-RAT Handover KPI

� CS Inter-RAT Handover Preparation Success Rate (WCDMA to GSM)

� Counters (P27)

− CSInterRATPpHOAttempt:

VS.SRELOC.AttPrep.IRHOCS (RNC)

IRATHO.AttRelocPrepOutCS (Cell)

− CSInterRATPpHOSuccess:

VS.SRELOC.SuccPrep.IRHOCS (RNC)

IRATHO.SuccRelocPrepOutCS (Cell)

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Inter-RAT Handover KPI

� CS Inter-RAT Handover Execution Success Rate (WCDMA to GSM)

� Formula

�Measurement scope:

− RNC & Cell

�Description

− This KPI can be used to evaluate the CS inter-RAT handover

success Rate in one RNC

%100*_HOAttemptCSInterRAT

HOSuccessCSInterRATSRHOCSInterRAT =

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Inter-RAT Handover KPI

� CS Inter-RAT Handover Execution Success Rate

(WCDMA to GSM)

�Counters (P27)

− CSInterRATHOAttempt:

VS.IRATHO.AttCSOut.RNC (RNC)

IRATHO.AttOutCS (Cell)

− CSInterRATHOSuccess:

VS.IRATHO.SuccCSOut.RNC (RNC)

IRATHO.SuccOutCS (Cell)

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Inter-RAT Handover KPI

� PS Inter-RAT Handover Preparation Success Rate (WCDMA to GPRS)

� Formula

�Measurement scope:

− RNC

�Description

− This KPI can be used to evaluate the PS inter-RAT handover

preparation success Rate in one RNC

%100_ ×=

tOutPpHOAttempPSInterRAT

sOutPpHOSuccesPSInterRATSRPpHOPSInterRAT out

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Inter-RAT Handover KPI

� PS Inter-RAT Handover Preparation Success

Rate (WCDMA to GPRS)

�Counters (P33)

− PSInterRATPpHOAttempt (RNC):

VS.IRATHO.EvalPSOutUTRAN.RNC

− PSInterRATPpHOSuccess (RNC)

VS.IRATHO.AttPSOutUTRAN.RNC

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Inter-RAT Handover KPI

� PS Inter-RAT Handover Execution Success Rate (WCDMA to GPRS)

� Formula

�Measurement scope:

− RNC & Cell

�Description

− This KPI can be used to evaluate the PS inter-RAT handover

success Rate in one RNC, which includes handover out from this

RNC

%100_ ×=

utHOAttemptOPSInterRAT

utHOSuccessOPSInterRATSRHOPSInterRAT out

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Inter-RAT Handover KPI

� PS Inter-RAT Handover Execution Success Rate

(WCDMA to GPRS)

�Counters (P33)

− PSInterRATHOAttempt:

VS.IRATHO.AttPSOutUTRAN.RNC (RNC)

IRATHO.AttOutPSUTRAN (Cell)

− PSInterRATHOSuccess:

VS.IRATHO.SuccPSOutUTRAN.RNC (RNC)

IRATHO.SuccOutPSUTRAN (Cell)

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Chapter 1 Soft Handover Counter and KPI Chapter 1 Soft Handover Counter and KPI

Chapter 2 Hard Handover Counter and KPIChapter 2 Hard Handover Counter and KPI

Chapter 3 InterChapter 3 Inter--RAT Handover Counter and KPIRAT Handover Counter and KPI

Chapter 4 HSDPA Handover Counter and KPIChapter 4 HSDPA Handover Counter and KPI

Chapter 5 HSUPA Handover Counter and KPIChapter 5 HSUPA Handover Counter and KPI

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HSDPA Handover KPI

� HS-DSCH Service Cell Change Success Rate with SHO

� Formula

�Measurement scope:

− Cell

�Description

− This KPI can be used to evaluate the soft handover success Rate of

HSDPA service in a cell

%100×=

empNumHtoHSHOAtt

cessNumHtoHSHOSuccessRatioHtoHSHOSuc

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HSDPA Handover KPI

� HS-DSCH Service Cell Change Success Rate with SHO

� Counters

− HtoHSHOAttempNum: VS.HSDPA.SHO.CellChg.AttOut

� Measurement point:

− The measurement is triggered at point A as shown in the figure, when the RNC

sends a PHYSICAL CHANNEL RECONFIGRATION message to a UE in the hard

handover procedure. If the serving cell changes, the RNC measures this item in

the original serving cell. This item is used to measure changes of serving cells in

soft handover procedure instead of hard handover procedure

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HSDPA Handover KPI

� HS-DSCH Service Cell Change Success Rate with SHO

�Counters

− HtoHSHOSuccessNum: VS.HSDPA.SHO.CellChg.SuccOut

�Measurement point:

− The measurement is triggered at point B as shown in the figure when the RNC

receives from a UE a PHYSICAL CHANNEL RECFG COMPLETE message.

− RNC measures this item in the original cell

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HSDPA Handover KPI

� Inter-frequency Hard Handover Success Rate (HSDPA to HSDPA)

� Formula

�Measurement scope:

− Cell

�Description

− This KPI can be used to evaluate the inter-frequency hard

handover success Rate of HSDPA service in a cell

%100×=

mHOAttempNuHtoHInterH

umHOSuccessNHtoHInterHatioHOSuccessRHtoHInterH

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HSDPA Handover KPI

� Inter-frequency Hard Handover Success Rate (HSDPA to HSDPA)

�Counters

− HtoHInterHHOAttemptNum:

VS.HSDPA.HHO.AttOutInterFreq

� Measurement point:

− The measurement is triggered at point A as shown in the figure.

− When the RNC sends a PHYSICAL CHANNLE RECONFIGRATION message to a

UE for an inter-frequency hard handover from HS-DSCH to HS-DSCH, the RNC

measures this item in the original cell

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HSDPA Handover KPI

� Inter-frequency Hard Handover Success Rate (HSDPA to HSDPA)

�Counters

− HtoHInterHHOSuccessNum:

VS.HSDPA.HHO.SuccOutInterFreq

�Measurement point:

− The measurement is triggered at point B as shown in the figure.

− When the RNC receives from a UE a PHYSICAL CHANNEL RECFG COMPLETE

message indicating that the handover is an inter-frequency hard handover from HS-

DSCH to HS-DSCH, the RNC measures this item in the original cell

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HSDPA Handover KPI

� Channel Handover Success Rate((((HSDPA to DCH or to FACH))))� Formula

�Measurement scope:

− Cell

�Description

− This KPI can be used to evaluate the channel handover success

Rate when UE handover from HSDPA to DCH in a cell

%100×=

mpNumHtoRHOAtte

essNumHtoRHOSuccessRatioHtoRHOSucc

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HSDPA Handover KPI

� Channel Handover Success Rate((((HSDPA to DCH or to FACH))))�Counters

− HtoRHOAttempNum:

VS.HSDPA.ChR.HSDSCHtoDCH.Att

VS.HSDPA.ChR.HSDSCHtoFACH.Att

�Measurement point:

− The measurement is triggered at point A as shown in the figure

− When the RNC decides to perform a channel handover, it sends a RADIO

BEARER RECONFIGURATION message to a UE during the DCCC or RAB

MODIFY procedure. In this case, the RNC measures the items in the serving cell of

the HSDPA service according to the transport channels of the UE before and after

the reconfiguration. The RNC performs the handover of transport channels in the

same cell

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HSDPA Handover KPI

� Channel Handover Success Rate((((HSDPA to DCH or to FACH))))�Counters

− HtoRHOSuccessNum:

VS.HSDPA.ChR.HSDSCHtoDCH

VS.HSDPA.ChR.HSDSCHtoFACH

�Measurement point:

− The measurement is triggered at point A1 as shown in the figure

− When the RNC receives from a UE a RADIO BEARER RECONFIGURATION

COMPLETE message indicating a handover from the HS-DSCH to the DCH or to

FACH in the same cell during the DCCC or RAB MODIFY procedure. In this case,

the RNC measures this item in the HSDPA cell that the UE camps on

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HSDPA Handover KPI

� Channel Handover Success Rate((((DCH or FACH to HSDPA))))� Formula

�Measurement scope:

− Cell

�Description

− This KPI can be used to evaluate the channel handover success

Rate when UE handover from DCH to HSDPA in a cell

%100×=

mpNumRtoHHOAtte

essNumRtoHHOSuccessRatioRtoHHOSucc

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HSDPA Handover KPI

� Channel Handover Success Rate((((DCH or FACH to HSDPA))))�Counters

− RtoHHOAttempNum:

VS.HSDPA.ChR.DCHtoHSDSCH.Att

VS.HSDPA.ChR.FACHtoHSDSCH.Att

�Measurement point:

− The measurement is triggered at point A as shown in the figure

− When the RNC decides to perform a channel handover, it sends a RADIO

BEARER RECONFIGURATION message to a UE during the DCCC or RAB

MODIFY procedure. In this case, the RNC measures the items in the serving cell of

the HSDPA service according to the transport channels of the UE before and after

the reconfiguration. The RNC performs the handover of transport channels in the

same cell

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HSDPA Handover KPI

� Channel Handover Success Rate((((DCH or FACH to HSDPA))))�Counters

− RtoHHOSuccessNum:

VS.HSDPA.ChR.DCHtoHSDSCH

VS.HSDPA.ChR.FACHtoHSDSCH

�Measurement point:

− The measurement is triggered at point A1 as shown in the figure

− When receiving RADIO BEARER RECONFIGURATION COMPLETE message

from UE, which indicating a handover from DCH or FACH to HSDSCH during a

DCCC or RAB MODIFY procedure at the same cell, RNC measures this item in a

HSDPA cell the UE camps on

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HSDPA Handover KPI

� HSDPA Inter-RAT Handover Success Rate (WCDMA to GPRS )

� Formula

�Measurement scope:

− Cell

�Description

− This KPI can be used to evaluate the HSDPA inter-RAT handover

success Rate in one cell, from WCDMA to GPRS

%100_ ×=

ptRATHOAttemHSDPAInter

ssRATHOSucceHSDPAInterSRRATHOHSDPAInter

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HSDPA Handover KPI

� HSDPA Inter-RAT Handover Success Rate (WCDMA to GPRS)

� Counters

− HSDPAInterRATHOAttempt:

VS.IRATHO.HSDPA.AttOutPSUTRAN

�Measurement point:

− The measurement is triggered at point B as

shown in the figure

− When RNC sends the CELL CHANGE

ORDER FROM UTRAN message to UE

dut to HSDPA inter-RAT outgoing

handover, the measurement is triggered in

the original cell

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HSDPA Handover KPI

� HSDPA Inter-RAT Handover Success Rate (WCDMA to GPRS )

� Counters

− HSDPAInterRATHOSuccess:

VS.IRATHO.HSDPA.SuccOutPSUTRAN

�Measurement point:

− The measurement is triggered at point D

as shown in the figure

− When RNC sends Iu Release Complete

to CN due to HSDPA handover, the

measurement is triggered in the original

cell

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Chapter 1 Soft Handover Counter and KPI Chapter 1 Soft Handover Counter and KPI

Chapter 2 Hard Handover Counter and KPIChapter 2 Hard Handover Counter and KPI

Chapter 3 InterChapter 3 Inter--RAT Handover Counter and KPIRAT Handover Counter and KPI

Chapter 4 HSDPA Handover Counter and KPIChapter 4 HSDPA Handover Counter and KPI

Chapter 5 HSUPA Handover Counter and KPIChapter 5 HSUPA Handover Counter and KPI

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HSUPA SHO Counters (Cell)

� Number of Attempts to Add or Del E-DCH RL for SHO (Cell)

� Counter:

− VS.HSUPA.EDCH.SHO.Att

� Measurement point:

− This measurement is triggered at point B as shown in the figure. When the RNC sends an

ACTIVE SET UPDATE message to the UE and an EDCH link is added or deleted for the

soft handover, the RNC measures this item in the cell where the EDCH link is added or deleted

� Number of Successes to Add or Del E-DCH RL

for SHO (Cell)

� Counter:

− VS.HSUPA.EDCH.SHO.Succ

� Measurement point:

− This measurement is triggered at point C as shown in the figure. When the RNC receives

an ACTIVE SET UPDATE CMP message from the UE and an EDCH link is added or

deleted during the soft handover, the RNC measures this item in the cell where the EDCH

link is added or deleted

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Channel type switch from EDCH to DCH

� Number of Attempts to switch channel type from EDCH to DCH in a Cell

� Counter:

− VS.HSUPA.ChR.IntraCell.EDCHtoDCH.Att

� Measurement point:

− This measurement is triggered at point A shown in the figure. The RNC sends a RADIO BEAR

RECONFIGURE message to the UE during RAB ASSIGN procedure. If the uplink channel of the

UE switches from EDCH to DCH in the same cell, the RNC measures this item in the HSUPA serving cell

� Number of Successes to switch channel type

from EDCH to DCH in a Cell

� Counter:

− VS.HSUPA.ChR.IntraCell.EDCHtoDCH.Succ

� Measurement point:

− This measurement is triggered at point A1 shown in the figure. The RNC receives a RB RECFG

CMP message from the UE during RAB ASSIGN procedure. If the uplink channel of the UE

switches from EDCH to DCH in the same cell, the RNC measures this item in the HSUPA

serving cell

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Channel type switch from DCH to EDCH

� Number of Attempts to switch channel type from DCH to EDCH in a Cell

� Counter:

− VS.HSUPA.ChR.IntraCell.DCHtoEDCH.Att

� Measurement point:

− This measurement is triggered at point A shown in the figure. The RNC sends a RADIO BEAR

RECONFIGURE message to the UE during RAB ASSIGN procedure. If the uplink channel of the

UE switches from DCH to EDCH in the same cell, the RNC measures this item in the HSUPA serving cell

� Number of Successes to switch channel type

from DCH to EDCH in a Cell

� Counter:

− VS.HSUPA.ChR.IntraCell.DCHtoEDCH.Succ

� Measurement point:

− This measurement is triggered at point A1 shown in the figure. The RNC receives a RB RECFG

CMP message from the UE during RAB ASSIGN procedure. If the uplink channel of the UE

switches from DCH to EDCH in the same cell, the RNC measures this item in the HSUPA

serving cell

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Channel type switch from EDCH to DCH due to Intra-frequency HHO

� Number of Attempts to switch channel type from EDCH to DCH due to

IntraFreq HHO

� Counter:

− VS.HSUPA.ChR.IntraFreq.EDCHtoDCH.Att

� Measurement point:

− This measurement is triggered at point A shown in the figure. When the RNC sends a RADIO

BEARER RECONFIGURATION message to the UE, the RNC measures this item in each cell that the UE camps on before the hard handover if an EDCH-to-DCH intra-frequency hard

handover is performed

� Number of Successes to switch channel type

from EDCH to DCH due to IntraFreq HHO

� Counter:

− VS.HSUPA.ChR.IntraFreq.EDCHtoDCH.Succ

� Measurement point:

− This measurement is triggered at point A1 shown in the figure. When the RNC receives a

RADIO BEARER RECONFIGURATION COMPLETE message from the UE, the RNC

measures this item in each cell that the UE camps on before the hard handover if an EDCH-to-

DCH intra-frequency hard handover is performed

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Channel type switch from EDCH to DCH due to Inter-frequency HHO

� Number of Attempts to switch channel type from EDCH to DCH of InterFreq

HHO

� Counter:

− VS.HSUPA.ChR.InterFreq.EDCHtoDCH.Att

� Measurement point:

− This measurement is triggered at point A shown in the figure. When the RNC sends a RADIO

BEARER RECONFIGURATION message to the UE, the RNC measures this item in each cell

that the UE camps on before the hard handover if an EDCH-to-DCH inter-frequency hard handover is performed

� Number of Successes to switch channel type

from EDCH to DCH of InterFreq HHO

� Counter:

− VS.HSUPA.ChR.InterFreq.EDCHtoDCH.Succ

� Measurement point:

− This measurement is triggered at point A1 shown in the figure. When the RNC receives a RADIO BEARER RECONFIGURATION COMPLETE message from the UE, the RNC

measures this item in each cell that the UE camps on before the hard handover if an EDCH-to-

DCH inter-frequency hard handover is performed

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Channel type switch from EDCH to FACH

� Number of Attempts to switch channel type from EDCH to FACH In a Cell

� Counter:

− VS.HSUPA.ChR.EDCHtoFACH.Att

� Measurement point:

− This measurement is performed at point A shown in the figure. The RNC sends a RADIO BEAR

RECONFIGURE message to the UE during the DCCC or RAB ASSIGN procedure. If the uplink

channel of the UE switches from EDCH to FACH in the same cell, the RNC measures this item

in the HSUPA serving cell

� Number of Successes to switch channel type

from EDCH to FACH In a Cell

� Counter:

− VS.HSUPA.ChR.EDCHtoFACH.Succ

� Measurement point:

− This measurement is triggered at point A1 shown in the figure. The RNC receives a RB RECFG

CMP message from the UE during the DCCC or RAB ASSIGN procedure. If the uplink channel

of the UE switches from EDCH to FACH in the same cell, the RNC measures this item in the

HSUPA serving cell

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Channel type switch from FACH to EDCH

� Number of Attempts to switch channel type from FACH to EDCH In a Cell

� Counter:

− VS.HSUPA.ChR.FACHtoEDCH.Att

� Measurement point:

− This measurement is performed at point A shown in the figure. The RNC sends a RADIO

BEAR RECONFIGURE message to the UE during the DCCC or RAB ASSIGN procedure. If

the uplink channel of the UE switches from FACH to EDCH in the same cell, the RNC

measures this item in the HSUPA serving cell

� Number of Successes to switch channel type

from FACH to EDCH In a Cell

� Counter:

− VS.HSUPA.ChR.FACHtoEDCH.Succ

� Measurement point:

− This measurement is performed at point A1 shown in the figure. The RNC receives a RB

RECFG CMP message from the UE during the DCCC or RAB ASSIGN procedure. If the uplink

channel of the UE switches from FACH to EDCH in the same cell, the RNC measures this item

in the HSUPA serving cell

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Inter-System HO

� Number of Attempts at PS Domain Outgoing Inter-RAT

Handovers for HSUPA services (Cell)

� Counter:

− VS.HSUPA.IRATHO.AttOutPSUTRAN

� Measurement point:

− The measurement is triggered at point B as shown in the

figure, that is, when the RNC sends the UE a CELL CHANGE

ORDER FROM UTRAN message during PS domain inter-RAT outgoing handover for HSUPA services

� Number of Successful RNC-Originated PS Domain Outgoing Inter-RAT Handovers for HSUPA services (Cell)

� Counter:

− VS.HSUPA.IRATHO.SuccOutPSUTRAN

� Measurement point:

− The measurement is triggered at point C as shown in the

figure, that is, when the RNC receives an IU RELEASE

COMMAND message with the cause of "Successful

Relocation“, "Normal Release" or "Network Optimization"

during PS domain outgoing inter-RAT handover for HSUPA

services. The RNC takes statistics in the best cell the UE

camps on before relocation

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Summary

� This presentation introduces WCDMA

mobility KPIs and related counters:

�Soft handover counters and KPIs

�Hard handover counters and KPIs

� Inter-RAT handover counters and KPIs

�HSDPA handover counters and KPIs

�HSUPA handover counters and KPIs

SummarySummary

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