1.wcdma access counters and kpis introduction

1

HUAWEI TECHNOLOGIES CO., LTD.

www.huawei.com

HUAWEI Confidential

Security Level:

WCDMA Access Counters

and KPIs Introduction

RAN 10 - issue 1.2

2

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential

� In WCDMA signaling procedure, a complete

access process contains following steps:

�RRC establishment

� Initial DT

�Authentication

�Security mode

�RAB assignment

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

�Describe the access counters

�Know access KPI

4


Chapter 1 RRC Establishment Counter and KPI Chapter 1 RRC Establishment Counter and KPI

Chapter 2 Security Mode Counter and KPIChapter 2 Security Mode Counter and KPI

Chapter 3 RAB Assignment Counter and KPIChapter 3 RAB Assignment Counter and KPI

Chapter 4 RB Counter and KPIChapter 4 RB Counter and KPI

1. CCCH : RRC Connection Request

5. Downlink Synchronisation

UENode B

Serving RNS

Serving

RNC

DCH - FP

Allocate RNTISelect L1 and L2parameters

RRCRRC

NBAPNBAP3. Radio Link Setup Response

NBAPNBAP2. Radio Link Setup Request

RRCRRC7. CCCH : RRC Connection Set up

Start RX description

Start TX description

4. ALCAP Iub Data Transport Bearer Setup

RRCRRC9. DCCH : RRC Connection Setup Complete

6. Uplink Synchronisation

NBAPNBAP8. Radio Link Restore Indication

DCH - FP

DCH - FP

DCH - FP

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RRC Establishment Counter and KPI

� RRC Connection Setup Cause (RNC)

Emergency Call

Cause unknownTerminating Background Call

Terminating Low Priority SignalingTerminating Interactive Call

Terminating High Priority SignalingTerminating Streaming Call

Call re-establishmentTerminating Conversational Call

Originating Low Priority SignalingOriginating Subscribed traffic Call

Originating High Priority SignalingOriginating Background Call

DetachOriginating Interactive Call

Registration Originating Streaming Call

Inter-RAT cell re-selectionOriginating Conversational Call

RRC Establishment Cause (RNC)RRC Establishment Cause (RNC)

Originating Subscribed Traffic Call: Any other service not defined in the 4 QoSs.

Originating High Priority Signaling: e.g. Supplementary Services, Location services, Modify PDP Context, Deactivate PDP Context, etc.

Originating Low Priority Signaling: e.g. SMS

Cause Unknown: UE cannot map the NAS reason to AS reason that is

defined in the protocol

For the exact mapping of NAS procedures to RRC Establishment Causes,

see TS24.008, Annex L

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RRC Establishment Counter and KPI

� RRC Connection Setup Cause (Cell)

Cause unknownEmergency Call

Terminating Low Priority SignalingTerminating Background Call

Terminating High Priority SignalingTerminating Interactive Call

Call re-establishmentTerminating Streaming Call

Originating Low Priority SignalingTerminating Conversational Call

Originating High Priority SignalingOriginating Subscribed traffic Call

DetachOriginating Background Call

Registration Originating Interactive Call

Inter-RAT cell change orderOriginating Streaming Call

Inter-RAT cell re-selectionOriginating Conversational Call

RRC Establishment Cause (Cell)RRC Establishment Cause (Cell)

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RRC Establishment Counters and KPI

� RRC Establishment Counters

� RRC connection request (P8 to P10)

− Establishment request for different reasons

� RRC connection setup (P11)

− Established on different channels (DCH or CCH)

� RRC connection setup complete (P12 to P14)

− Setup complete for different reasons

− Setup complete on different channels (DCH or CCH)

� RRC connection reject (P15,P17 to P19)

− Iub failure

− Reject due to congestion (radio resources congestion)

� RRC connection setup, no response (P15 to P16)

− (mostly due to bad radio environment)

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RRC Establishment Counters

� RRC connection request

� Number of RRC connection requests: VS.RRC.AttConnEstab (RNC) at point A2

� Number of RRC connection requests: VS.RRC.AttConnEstab.Cell (Cell) at point A2

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� RRC Connection Request (RNC) [based on different cause]

� VS.RRC.AttConnEstab.OrgConv

� VS.RRC.AttConnEstab.OrgStr

� VS.RRC.AttConnEstab.OrgInt

� VS.RRC.AttConnEstab.OrgBkg

� VS.RRC.AttConnEstab.OrgSubs

� VS.RRC.AttConnEstab.TrmConv

� VS.RRC.AttConnEstab.TrmStr

� VS.RRC.AttConnEstab.TrmInt

� VS.RRC.AttConnEstab.TrmBkg

� VS.RRC.AttConnEstab.Emg

� VS.RRC.AttConnEstab.CellRes

� VS.RRC.AttConnEstab.Reg

� VS.RRC.AttConnEstab.Detach

� VS.RRC.AttConnEstab.OrgHPSig

� VS.RRC.AttConnEstab.OrgLPSig

� VS.RRC.AttConnEstab.Rest

� VS.RRC.AttConnEstab.TmHPSig

� VS.RRC.AttConnEstab.TmLPSig

� VS.RRC.AttConnEstab.Unknown

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� RRC Connection Request (Cell) [based on different cause]

� RRC.AttConnEstab.OrgConvCall

� RRC.AttConnEstab.OrgStrCall

� RRC.AttConnEstab.OrgInterCall

� RRC.AttConnEstab.OrgBkgCall

� RRC.AttConnEstab.OgSubCall

� RRC.AttConnEstab.TmConvCall

� RRC.AttConnEstab.TmStrCall

� RRC.AttConnEstab.TmInterCall

� RRC.AttConnEstab.TmBkgCall

� RRC.AttConnEstab.EmgCall

� RRC.AttConnEstab.IRATCelRes

� RRC.AttConnEstab.IRATCCO

� RRC.AttConnEstab.Reg

� RRC.AttConnEstab.Detach

� RRC.AttConnEstab.OgHhPrSig

� RRC.AttConnEstab.OgLwPrSig

� RRC.AttConnEstab.CallReEst

� RRC.AttConnEstab.TmHhPrSig

� RRC.AttConnEstab.TmLwPrSig

� RRC.AttConnEstab.Unknown

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� RRC connection setup

� RRC connection setup: VS.RRC.SetupConnEstab (RNC) at point B

� RRC connection setup on DCH: VS.RRC.SetupConnEstab.DCH (RNC) at point B

� RRC connection setup: VS.RRC.SetupConnEstab.Cell (Cell) point B

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� RRC Connection Setup Complete [based on different channels]

� VS.RRC.SuccConnEstab (RNC) at point C

− VS.RRC.SuccConnEstab.DCH (RNC)

− VS.RRC.SuccConnEstab.CCH (RNC)

� RRC.SuccConnEstab.sum (Cell) at point C

− VS.RRC.SuccConEst.DCH (Cell)

− VS.RRC.SuccConEst.CCH (Cell)

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� RRC Connection Setup Complete (RNC) [based on different cause]

� VS.RRC.SuccConnEstab.OrgConv

� VS.RRC.SuccConnEstab.OrgStr

� VS.RRC.SuccConnEstab.OrgInt

� VS.RRC.SuccConnEstab.OrgBkg

� VS.RRC.SuccConnEstab.OrgSubs

� VS.RRC.SuccConnEstab.TrmConv

� VS.RRC.SuccConnEstab.TrmStr

� VS.RRC.SuccConnEstab.TrmInt

� VS.RRC.SuccConnEstab.TrmBkg

� VS.RRC.SuccConnEstab.Emg

� VS.RRC.SuccConnEstab.CellRes

� VS.RRC.SuccConnEstab.Reg

� VS.RRC.SuccConnEstab.Detach

� VS.RRC.SuccConnEstab.OrgHPSi

� VS.RRC.SuccConnEstab.OgLPSig

� VS.RRC.SuccConnEstab.Rest

� VS.RRC.SuccConnEstab.TmHPSi

� VS.RRC.SuccConnEstab.TmLPSi

� VS.RRC.SuccConnEstab.Unknown

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� RRC Connection Setup Complete (Cell) [based on different cause]

� RRC.SuccConnEstab.OgConvCall

� RRC.SuccConnEstab.OrgStrCall

� RRC.SuccConnEstab.OrgItrCall

� RRC.SuccConnEstab.OrgBkgCall

� RRC.SuccConnEstab.OrgSubCall

� RRC.SuccConnEstab.TmConvCall

� RRC.SuccConnEstab.TmStrCall

� RRC.SuccConnEstab.TmItrCall

� RRC.SuccConnEstab.TmBkgCall

� RRC.SuccConnEstab.EmgCall

� RRC.SuccConnEstab.IRATCelRes

� RRC.SuccConnEstab.IRATCCO

� RRC.SuccConnEstab.Reg

� RRC.SuccConnEstab.Detach

� RRC.SuccConnEstab.OgHhPrSig

� RRC.SuccConnEstab.OgLwPrSig

� RRC.SuccConnEstab.CallReEst

� RRC.SuccConnEstab.TmHhPrSig

� RRC.SuccConnEstab.TmLwPrSig

� RRC.SuccConnEstab.Unkown

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� RRC Connection establishment failure [RNC]

� VS.RRC.FailConEst.RNC :

− When the RNC receives an RRC CONNECTION REQUEST message from the UEs

and if the RRC connection setup fails, the measurement of this item is triggered

� VS.RRC.FailConEst.Cng.RNC :

− This measurement item provides the number of RRC CONNECTION REJECT

messages that the RNC sends to the UE in response to the RRC CONNECTION

REQUEST message from the UE due to network congestion

Note: The value of VS.RRC.FailConEst.RNC is equal to or greater than that of

VS.RRC.FailConEst.Cng.RNC


Other related CountersOther related Counters

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� RRC Connection establishment failure [Cell] – No Reply

� RRC.FailConnEstab.NoReply :

− The measurement is triggered when the RNC does not receive the RRC CONNECT

SETUP COMPLETE messages upon sending of RRC CONNECT SETUP

messages

− The RNC measures the item in the cell that the UE camps on



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� RRC Connection establishment failure [Cell] – Reject

�VS.RRC.Rej.RL.Fail

− Radio link setup failure

�VS.RRC.Rej.AAL2.Fail

− AAL2 setup failure



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� RRC Connection establishment failure [Cell] – Reject

� RRC.FailConnEstab.Cong [CELL]

− This measurement item provides, upon the receipt of RRC CONNECTION REQUEST messages, the

number of RRC CONNECTION REJECT messages from the RNC to UEs in a cell due to network

congestion

− Number of RRC Connection Rejects due to Radio Resource Congestion (Cell):

▪ VS.RRC.Rej.Power.Cong: Power resource request failure

▪ VS.RRC.Rej.UL.CE.Cong: Cell UL CE resource request failure

▪ VS.RRC.Rej.DL.CE.Cong: Cell DL CE resource request failure

▪ VS.RRC.Rej.Code.Cong: Code resource request failure

▪ VS.RRC.Rej.ULIUBBandCong: Admission rejected due to UL bandwidth congestion over Iub

▪ VS.RRC.Rej.DLIUBBandCong: Admission rejected due to DL bandwidth congestion over Iub

▪ Note: These 6 counters are sub-items of RRC.FailConnEstab.Cong



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� RRC Connection establishment failure [Cell]

� VS.RRC.FailConnEstab :

− This measurement item provides the total number of

RRC connection failures in a cell

Note: VS.RRC.FailConnEstab contains:

RRC.FailConnEstab.Cong (P18) , VS.RRC.Rej.RL.Fail (P17),

VS.RRC.Rej.AAL2.Fail (P17)



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� RRC Setup Success Rate

� Formula

�Measurement scope:

− RNC & Cell

�Description

− This KPI can be used to evaluate RRC setup success ratio about

CS service, PS service and other reasons

%100*_ionAttemptRRCConnect

ionSuccessRRCConnectSRRRCS =

RRC Establishment KPI

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� RRC Setup Success Rate (CS)

� Counters (RNC)

− : VS.RRC.AttConnEstab.Cause (P9)

− : VS.RRC.SuccConnEstab.Cause (P13)

� Counters (Cell)

− : RRC.AttConnEstab.Cause (P10)

− : RRC.SuccConnEstab.Cause (P14)

� The causes could be

− For RNC: OrgConv, OrgSubs, TrmConv, Rest, Emg, Unknown

− For Cell: OgConvCall, OrgSubCall, TmConvCall, CallReEst, EmgCall, Unkow

csionSuccessRRCConnect

csionAttemptRRCConnect

csionSuccessRRCConnect

csionAttemptRRCConnect

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� RRC Setup Success Rate (PS)

� Counters (RNC)

− : VS.RRC.AttConnEstab.cause (P9)

− : VS.RRC.SuccConnEstab.cause (P13)

� Counters (Cell)

− : RRC.AttConnEstab.cause (P10)

− : RRC.SuccConnEstab.cause (P14)

� The cause could be

− For RNC: OrgInt, OrgBkg, TrmInt, TrmBkg, OrgHPSi, TmHPSi

− For Cell: OrgItrCall, OrgBkgCall, TmItrCall, TmBkgCall, OgHhPrSig,

TmHhPrSig

psionAttemptRRCConnect

psionSuccessRRCConnect

psionAttemptRRCConnect

psionSuccessRRCConnect

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� RRC Setup Success Rate (Inter RAT Cell reselection)

�Counters (RNC)

− : VS.RRC.AttConnEstab.CellRes (P9)

− : VS.RRC.SuccConnEstab.CellRes (P13)

�Counters (Cell)

− : RRC.AttConnEstab.IRATCelRes (P10)

− : RRC.SuccConnEstab.IRATCelRes (P14)

tionRATreselecionAttemptRRCConnect

tionRATreselecionSuccessRRCConnect

tionRATreselecionAttemptRRCConnect

tionRATreselecionSuccessRRCConnect

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� RRC Setup Success Rate (Inter RAT Cell Change Order)

�Counters (Cell)

− : RRC.AttConnEstab.IRATCCO (P10)

− : RRC.SuccConnEstab.IRATCCO (P14)OrderCellChangeionSuccessRRCConnect

OrderCellChangeionAttemptRRCConnect

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� RRC Setup Success Rate (Registration)

�Counters (RNC)

− : VS.RRC.AttConnEstab.Reg (P9)

− : VS.RRC.SuccConnEstab.Reg (P13)

�Counters (Cell)

− : RRC.AttConnEstab.Reg (P10)

− : RRC.SuccConnEstab.Reg (P14)

onregistratiionAttemptRRCConnect

onregistratiionSuccessRRCConnect

onregistratiionAttemptRRCConnect

onregistratiionSuccessRRCConnect

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Chapter 1 RRC Establishment Counter and KPIChapter 1 RRC Establishment Counter and KPI




UE RNC CN

RRC Connection Setup

Initial DTInitial UE Message

DL DT (Authentication

Request)DL DT (Authentication

Request)

DL DT (Authentication

Request) DL DT (Authentication

Request)

Common ID

Security Mode CommandSecurity Mode Command

Security Mode CompleteSecurity Mode Complete

RAB Assignment

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� Security Mode Command Success Rate

� Formula


− RNC

�Description

− This KPI can be used to evaluate security mode success rate in

RNC

%100*_SMCAttempt

SMCSuccessSRSMC =

Security Mode Counter and KPI

The security mode control procedure is to send encryption and integrity protection information to the UTRAN. With the information, the UTRAN

can encrypt user data and signaling data, and provide integrity protection

for signaling data.

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Security Mode Counter and KPI

� Security Mode Command Success Rate

� Counters

−

▪ VS.IU.Att.SecMode

▪ The measurement is triggered at point A

as shown in the figure, that is, when

RNC receives Security Mode Command

from CN

−

▪ VS.IU.Succ.SecMode

SMCAttempt

SMCSuccess

▪ The measurement is triggered at point B as shown in the figure, that is, when

RNC sends Security Mode Complete to CN

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NodeBUE CNRNC

RANAPRANAPRAB Asg Req

Q.AAL2 Q.AAL2

Q.AAL2Q.AAL2

NBAPNBAP

AAL2 Setup Req

RL Recfg Prepare

AAL2 Setup Rep

NBAPNBAPRL Recfg Ready

Q.AAL2Q.AAL2AAL2 Setup Req

Q.AAL2Q.AAL2AAL2 Setup Resp

FPFPDL Sync

FPFPUL Sync

RRC RRCRB Setup

NBAPNBAPRL Recfg Commit

RRC RRCRB Setup Complete

RANAPRANAPRAB Asg Resp

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RAB Establishment Counter and KPI

� CS RAB counter system in RNC

� CS RAB establishment Attempt:

− Based on QoS (P34)

▪ CS Conversational; CS Streaming

− Different service rates (P35)

▪ Conv0.32; Conv32.64

▪ Str0.32; Str32.64

� CS RAB establishment Success:


▪ CS conversational Noqueuing; CS conversational queuing

▪ CS streaming Noqueuing; CS streaming queuing

− Different service rates (P37)

▪ Conv0.32; Conv32.64

▪ Str0.32; Str32.64

After the RNC receives the RAB ASSIGNMENT REQUEST message, it performs resource allocation and admission control according to the

Allocation/Retention Priority IEs in the message. The RABs with the

highest priority will be allocated first and the RABs with the lower priority

may be placed in a queue. In this case, the RNC directly sends the CN a

RAB ASSIGNMENT RESPONSE message indicating the queuing RAB. The RAB setup procedure will proceed when there are enough resources.

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� CS RAB counter system in Cell

� CS RAB establishment Attempt

− Based on Qos (P34)


− Based on typical services (P35)

▪ AMR; CS64

− Based on AMR service rates (P35)

▪ AMR 12.2, 7.95, 5.90, 4.75

� CS RAB establishment Success

− Based on Qos (P36)


− Based on typical services (P37)

▪ AMR; CS64

− Based on AMR service rates (P37)

▪ AMR 12.2, 7.95, 5.90, 4.75

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� PS RAB counter system in RNC

� PS RAB establishment Attempts:


▪ Conversational, Streaming, Interactive, Background

− Based on different service rate (ranges) and QoS (P39)

▪ Conversational 0.32.+

▪ Streaming 0.32.64.144.384.+

▪ Interactive 0.32.64.144.384.+

▪ Background 0.32.64.144.384.+

− Based on typical PS service rates (P39)

▪ PS64, PS128, PS384

� PS RAB establishment Successes:


▪ Conversational (Queuing, No Queuing), Streaming (Queuing, No Queuing), Interactive (Queuing, No Queuing), Background (Queuing, No Queuing)


▪ Conversational 0.32.+

▪ Streaming 0.32.64.144.384.+

▪ Interactive 0.32.64.144.384.+

▪ Background 0.32.64.144.384.+

− Based on typical PS service rates (P41)

▪ PS64, PS128, PS384

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� PS RAB counter system in Cell

� PS RAB establishment Attempts:


▪ Conversational; Streaming; Interactive; Background


▪ Streaming 0.32.64.144.384.+

▪ Interactive 0.32.64.144.384.+

▪ Background 0.32.64.144.384.+

� PS RAB establishment Successes:


▪ Conversational; Streaming; Interactive; Background


▪ Streaming 0.32.64.144.384.+

▪ Interactive 0.32.64.144.384.+

▪ Background 0.32.64.144.384.+

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RAB Assignment Counter

� RAB Assignment Request (CS)

� CS RAB setup request based on QoS at point A (RNC):

− RAB.AttEstabCS.Conv

− RAB.AttEstabCS.Strm

� CS RAB setup request based on QoS at point A (Cell):

− VS.RAB.AttEstabCS.Conv

− VS.RAB.AttEstabCS.Str

� Notes: These counters can be used to evaluate the total

CS RAB setup success rate

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� RAB Assignment Request (CS)

� CS RAB setup request for different services rate ranges (RNC):

− VS.RAB.AttEstCSConv0.32.RNC

− VS.RAB.AttEstCSConv32.64.RNC

− VS.RAB.AttEstCSStr0.32.RNC

− VS.RAB.AttEstCSStr32.64.RNC

� CS RAB setup request for different services (Cell):

− VS.RAB.AttEstab.AMR

− VS.RAB.AttEstCS.Conv.64

� CS RAB setup request for different AMR service rates (Cell):

− VS.RAB.AttEstabCS.AMR.12.2




� Note: These counters can be used to evaluate different CS

services RAB setup success rate

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� RAB Assignment Response (CS)

� CS RAB setup complete based on QoS at point B (RNC):

− RAB.SuccEstabCSNoQueuing.Conv

− RAB.SuccEstabCSNoQueuing.Strm

− RAB.SuccEstabCSQueuing.Conv

− RAB.SuccEstabCSQueuing.Strm

� CS RAB setup complete based on QoS at point B (Cell):

− VS.RAB.SuccEstabCS.Conv

− VS.RAB.SuccEstabCS.Str

� Notes: These counters can be used to evaluate the total

CS RAB setup success rate

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� RAB Assignment Response (CS)

� CS RAB setup complete for different services rates (RNC):

− VS.RAB.SucEstCSConv0.32.RNC

− VS.RAB.SucEstCSConv32.64.RNC

− VS.RAB.SucEstCSStr0.32.RNC

− VS.RAB.SucEstCSStr32.64.RNC

� CS RAB setup complete for different services (Cell):

− VS.RAB.SuccEstab.AMR

− VS.RAB.SuccEstCS.Conv.64

� CS RAB setup complete for different AMR service rates (Cell):

− VS.RAB.SuccEstabCS.AMR.12.2




� Notes: These counters can be used to evaluate different CS

services RAB setup success rate.

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� RAB Assignment Request (PS)

� PS RAB setup request for different QoS at point A (RNC):

− RAB.AttEstabPS.Conv

− RAB.AttEstabPS.Strm

− RAB.AttEstabPS.Intact

− RAB.AttEstabPS.Bgrd

� PS RAB setup request for different QoS at point A (Cell):

− VS.RAB.AttEstabPS.Conv

− VS.RAB.AttEstabPS.Str

− VS.RAB.AttEstabPS.Inter

− VS.RAB.AttEstabPS.Bkg

39



� RAB Assignment Request (PS)

� PS RAB setup request for different service rates (ranges)

at point A (RNC), e.g.:

− VS.RAB.AttEstPSInt0.32.RNC

− VS.RAB.AttEstPSBkg0.32.RNC

� PS RAB setup request for typical service rates at point A

(RNC):

− VS.RAB.AttEstabPS.64.RNC



� PS RAB setup request for different service rates (ranges)

at point A (Cell), e.g.:

− VS.RAB.Att.Est.PS.Int.0.32

− VS.RAB.Att.Est.PS.Bkg.0.32

40



� RAB Assignment Response (PS)

� PS RAB setup complete for different QoS at point B (RNC):

− RAB.SuccEstabPSNoQueuing.Conv

− RAB.SuccEstabPSNoQueuing.Strm

− RAB.SuccEstabPSNoQueuing.Intact

− RAB.SuccEstabPSNoQueuing.Bgrd

− RAB.SuccEstabPSQueuing.Conv

− RAB.SuccEstabPSQueuing.Strm

− RAB.SuccEstabPSQueuing.Intact

− RAB.SuccEstabPSQueuing.Bgrd

� PS RAB setup complete for different QoS at point B (Cell):

− VS.RAB.SuccEstabPS.Conv

− VS.RAB.SuccEstabPS.Str

− VS.RAB.SuccEstabPS.Inter

− VS.RAB.SuccEstabPS.Bkg

41



� RAB Assignment Response (PS)

� PS RAB setup complete for different service rates

(ranges) (RNC), e.g.:

− VS.RAB.SucEstPSInt0.32.RNC

− VS.RAB.SucEstPSBkg0.32.RNC

� PS RAB setup complete for typical service rates

(RNC):

− VS.RAB.SuccEstabPS.64.RNC



� PS RAB setup complete for different service rates

(ranges) (Cell), e.g.:

− VS.RAB.Suc.Est.PS.Int.0.32

− VS.RAB.Suc.Est.PS.Bkg.0.32

42


� RAB Setup Success Rate

� Formula


− RNC & Cell

�Description

− This KPI can be used to evaluate the RAB setup success ratio for

different service in RNC or cell.

%100_ ×=

temptRABSetupAt

ccessRABSetupSuSRRABS

RAB Assignment KPI

This KPI can not be used to evaluate the call setup success ratio, unless the related RRC procedure of the call is successful.

43


RAB Assignment KPI

� AMR RAB Setup Success Rate

� Counters (RNC)

− : VS.RAB.AttEstCSConv0.32.RNC (P35)

− : VS.RAB.SucEstCSConv0.32.RNC (P37)

� Counters (Cell)

− : VS.RAB.AttEstab.AMR (P35)

− : VS.RAB.SuccEstab.AMR (P37)

pAttemptAMRRABSetu

pSuccessAMRRABSetu

pAttemptAMRRABSetu

pSuccessAMRRABSetu

44


RAB Assignment KPI

� Video Call RAB Setup Success Rate

� Counters (RNC)

− : VS.RAB.AttEstCSConv32.64.RNC (P35)

− : VS.RAB.SuccEstCSConv32.64.RNC (P37)

� Counters (Cell)

− : VS.RAB.AttEstCS.Conv.64 (P35)

− : VS.RAB.SuccEstCS.Conv.64 (P37)

AttemptVPRABSetup

SuccessVPRABSetup

AttemptVPRABSetup

SuccessVPRABSetup

45


RAB Assignment KPI

� PS64 RAB Setup Success Rate

� Counters (RNC)

− : VS.RAB.AttEstabPS.64.RNC (P39)

− : VS.RAB.SuccEstabPS.64.RNC (P41)

temptRABSetupAtPS64

ccessRABSetupSuPS64

46


RAB Assignment KPI


� Counters (RNC)



temptRABSetupAtPS128

ccessRABSetupSuPS128

47


RAB Assignment KPI


� Counters (RNC)



temptRABSetupAtPS384

ccessRABSetupSuPS384

48


RAB Assignment KPI

� HSDPA RAB Setup Success Rate

� Counters (Cell)

− : VS.HSDPA.RAB.AttEstab

− : VS.HSDPA.RAB.SuccEstab

� HSUPA RAB Setup Success Rate

� Counters (Cell)

− HSUPARABSetupAttempt: VS.HSUPA.RAB.AttEstab

− HSUPARABSetupSuccess: VS.HSUPA.RAB.SuccEstab

tupAttemptHSDPARABSe

tupSuccessHSDPARABSe

49


RAB Failure Counters

� CS RAB Failure Counter (Cell)

� Failure statistic based on different reasons :

− VS.RAB.FailEstabCS.TNL

− VS.RAB.FailEstabCS.RNL

▪ VS.RAB.FailEstCS.Relo

▪ VS.RAB.FailEstCS.RIPFail

− VS.RAB.FailEstCS.Unsp

VS.RAB.FailEstCS.Relo: i.e.: Failure due to SRNC Relocation, iRAT Relocation

VS.RAB.FailEstCS.RIPFail: i.e.: Failure in a Radio Interface Procedure

VS.RAB.FailEstCS.Unsp: i.e.: The requested RAB is not supported. Possible reasons for

this include:

Requested Traffic Class not Available

Requested Maximum Bit Rate not Available

Requested Maximum Bit Rate for DL not Available

Requested Maximum Bit Rate for UL not Available

Requested Guaranteed Bit Rate not Available

Requested Guaranteed Bit Rate for DL not Available

Requested Guaranteed Bit Rate for UL not Available

Requested Transfer Delay not Achievable

50



� CS RAB Failure Counter (Cell)

� Failure statistic based on different reasons :

− VS.RAB.FailEstabCS.Cong

▪ VS.RAB.FailEstCs.Power.Cong

▪ VS.RAB.FailEstCs.ULCE.Cong

▪ VS.RAB.FailEstCs.DLCE.Cong

▪ VS.RAB.FailEstCs.Code.Cong

− VS.RAB.FailEstab.CS.DLIUBBand.Cong

− VS.RAB.FailEstab.CS.ULIUBBand.Cong

51



� PS RAB Failure Counter (Cell)

�Failure statistic based on different reasons :

− VS.RAB.FailEstPS.TNL

− VS.RAB.FailEstPS.RNL

▪ VS.RAB.FailEstPS.Par

▪ VS.RAB.FailEstPS.Relo

▪ VS.RAB.FailEstPS.RIPFail

▪ VS.RAB.FailEstPS.Unsp

− VS.RAB.FailEstPS.NResAvail

VS.RAB.FailEstPS.Par: i.e.: Failure due to Invalid Parameters

VS.RAB.FailEstPS.Relo: i.e.: Failure due to SRNC Relocation, iRAT Relocation

VS.RAB.FailEstPS.RIPFail: i.e.: Failure in a Radio Interface Procedure

VS.RAB.FailEstPS.Unsp: i.e.: The requested RAB is not supported. Possible reasons for

this include:

Requested Traffic Class not Available

Requested Maximum Bit Rate not Available

Requested Maximum Bit Rate for DL not Available

Requested Maximum Bit Rate for UL not Available

Requested Guaranteed Bit Rate not Available

Requested Guaranteed Bit Rate for DL not Available

Requested Guaranteed Bit Rate for UL not Available

Requested Transfer Delay not Achievable

VS.RAB.FailEstPS.NResAvail: i.e.: Failure due to lack of system resources, e.g. shortage

of memory, etc.

52



� PS RAB Failure Counter (Cell)

�Failure statistic based on different reasons:

▪ VS.RAB.FailEstPs.Power.Cong

▪ VS.RAB.FailEstPs.ULCE.Cong

▪ VS.RAB.FailEstPs.DLCE.Cong

▪ VS.RAB.FailEstPs.Code.Cong

▪ VS.RAB.FailEstab.PS.ULIUBBand.Cong

▪ VS.RAB.FailEstab.PS.DLIUBBand.Cong

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54


RB Counter System

� RB setup counters (Cell)

� Radio Bearer setup counters at point A:

− VS.AttRBSetup

� Radio Bearer setup complete at point B:

− VS.SuccRBSetup

55


RB Counter System

� RB setup failure counters (Cell)

� Radio Bearer setup failure, due to:

− Configuration unsupported: VS.FailRBSetup.CfgUnsup

− Physical channel failure: VS.FailRBSetup.PhyChFail

− Cell update occurred: VS.FailRBSetup.CellUpd

− Invalid configuration: VS.FailRBSetup.IncCfg

− No reply: VS.FailRBSetup.NoReply

VS.FailRBSetup.CfgUnsup: e.g.: UE is doing a PS128 service. Then UE receives a VP request. Some UEs may not be able to support these two

services simultaneously. So UE will send RB failure with reason

Unsupported Configuration.

56


RB Counter System

� RB reconfiguration counters (Cell)

� Radio Bearer reconfiguration at point A:

− VS.AttRBRecfg

� Radio Bearer reconfiguration complete at point B:

− VS.SuccRBRecfg

Radio Bearer reconfiguration may happen, e.g. due to DCCC rate upsize or downsize or

UE state transition.

57


RB Counter System

� RB reconfigure failure counters (Cell)

� Radio Bearer reconfiguration failure, due to:

− Configuration unsupported: VS.FailRBRecfg.CfgUnsup

− Physical channel failure: VS.FailRBRecfg.PhyChFail

− Cell update occurred: VS.FailRBRecfg.CellUpd

− Invalid configuration: VS.FailRBRecfg.IncCfg

− No reply: VS.FailRBRecfg.NoReply

58


Summary

� This chapter mainly explained the KPIs

about Accessibility

�RRC connection success rate

�RAB setup success rate

�Radio bearer counters

SummarySummary

59

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requested

requested

rrcconnect

cellupd invalid