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HUAWEI TECHNOLOGIES CO., LTD.www.huawei.com
HUAWEI Confidential
Security Level:
WCDMA Mobility Counters
and KPIs Introduction
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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 2
WCDMA handover can be divided into
different categories.
Different counters and KPI are used for
different handovers.
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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 3
Upon completion of this course, you will be able to:
Know different handover counter system
Know different handover KPI
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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 4Mobility Counters and KPI System
Soft handoverSofter 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
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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 5Chapter 1 Soft Handover Counters and KPIs
Chapter 1 Soft Handover Counters and KPIs
Chapter 2 Hard Handover Counters and KPIs
Chapter 2 Hard Handover Counters and KPIs
Chapter 3 Inter
Chapter 3 Inter
-
-
RAT Handover Counters and KPIs
RAT Handover Counters and KPIs
Chapter 4 HSDPA Handover Counters and KPIs
Chapter 4 HSDPA Handover Counters and KPIs
Chapter 5 HSUPA Handover Counters and KPIs
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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 6Soft 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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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 7Soft 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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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 8Soft Handover Counter System
Soft handover (RNC)
UEs with One RL: VS.SHO.AS.1UEs 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
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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 9
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.AttRLAddUESideat point B SHO.SuccRLAddUESideat point C − SHO.AttRLDelUESideat 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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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 10Soft 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
*
_
mpt
SHOASUAtte
ess
SHOASUSucc
SR
SHO
=
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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 11Soft 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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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 12Soft Handover KPI
Average Active Set Size
Formula:
Measurement scope:
− RNC
Description
− This KPI can be used to evaluate the average active set size
+
+
=
UE
UE
UE
UE
ASS
1*
1
2*
2
3*
3
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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 13Soft 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 +
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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 14Number 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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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 15Chapter 1 Soft Handover Counter and KPI
Chapter 1 Soft Handover Counter and KPI
Chapter 2 Hard Handover Counter and KPI
Chapter 2 Hard Handover Counter and KPI
Chapter 3 Inter
Chapter 3 Inter
-
-
RAT Handover Counter and KPI
RAT Handover Counter and KPI
Chapter 4 HSDPA Handover Counter and KPI
Chapter 4 HSDPA Handover Counter and KPI
Chapter 5 HSUPA Handover Counter and KPI
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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 16Hard 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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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 17Intra-frequency Hard Handover Counter System
Intra-frequency Hard handover (RNC)
Intra-Frequency Hard Handover Requests: VS.HHO.Att.IntraFreq.RNCat point B
Successful Intra-Frequency Hard Handovers: VS.HHO.Succ.IntraFreq.RNCat point C
Intra-frequency Hard handover (Cell)
Intra NodeB Hard Handover Requests: VS.HHO.AttOutIntraNodeBIntraFreqat point B
Intra NodeB Successful Hard Handovers: VS.HHO.SuccOutIntraNodeBIntraFreqat point C
Inter NodeB Hard Handover Requests: VS.HHO.AttOutInterNodeBIntraRNCIntraFreqat point B
Inter NodeB Successful Hard Handovers: VS.HHO.SuccOutInterNodeBIntraRNCIntraFreqat point C
Inter RNC Hard Handover Requests: VS.HHO.AttOutInterRNCIntraFreqIurat point B
Inter RNC Successful Hard Handovers: VS.HHO.SuccOutInterRNCIntraFreqIurat 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
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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 18Inter-frequency Hard Handover Counter System
Inter-frequency Hard handover (RNC)
Inter-Frequency Hard Handover Requests: VS.HHO.InterFreq.Att.RNCat point B
Successful Inter-Frequency Hard Handovers: VS.HHO.InterFreq.Succ.RNCat point C
Inter-frequency Hard handover (Cell)
Hard Handover Requests (outgoing): VS.HHO.InterFreq.AttOutat point B
Successful Hard Handovers (outgoing): VS.HHO.InterFreq.SuccOutat point C
Hard Handover Requests (incoming): VS.HHO.InterFreqIn.Attat point B
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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 19Inter-frequency Hard Handover Counter System
Inter-frequency Hard Handover execution failure (Cell), due to:
Configuration unsupported: VS.HHO.InterFreqOut.CfgUnsuppPhysical 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
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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 20Inter-frequency Hard Handover Counter System
Inter-frequency Hard Handover execution failure (Cell)
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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 21Inter-frequency Hard Handover Counter System
Inter-frequency Hard handover failure analysis (Cell)
Code resource allocation failure: VS.HHO.InterFreqOut.DLCodeRejUL admission rejection: VS.HHO.InterFreqOut.ULAdmsnDeny
DL admission rejected: VS.HHO.InterFreqOut.DLAdmsnDeny
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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 22Hard 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
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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 23Hard 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
_
=
×
tempt
InterHHOAt
ccess
InterHHOSu
SR
InterHHO
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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 24Hard 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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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 25Chapter 1 Soft Handover Counter and KPI
Chapter 1 Soft Handover Counter and KPI
Chapter 2 Hard Handover Counter and KPI
Chapter 2 Hard Handover Counter and KPI
Chapter 3 Inter
Chapter 3 Inter
-
-
RAT Handover Counter and KPI
RAT Handover Counter and KPI
Chapter 4 HSDPA Handover Counter and KPI
Chapter 4 HSDPA Handover Counter and KPI
Chapter 5 HSUPA Handover Counter and KPI
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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 26Inter-RAT Handover Counter System
CS Inter-RAT handover procedure
CS handover from WCDMA to GSMThis procedure can be divided into two steps: − Handover preparation:
▪ From point A to point B − Handover execution
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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 27Inter-RAT Handover Counter System
CS Inter-RAT handover counters (RNC)
Preparation request: VS.SRELOC.AttPrep.IRHOCSat point A
Preparation success: VS.SRELOC.SuccPrep.IRHOCSat point B
Execution request: VS.IRATHO.AttCSOut.RNCat point C
Execution success: VS.IRATHO.SuccCSOut.RNCat point D
CS Inter-RAT handover counters (Cell)
Preparation request: IRATHO.AttRelocPrepOutCSat point A
Preparation success: IRATHO.SuccRelocPrepOutCSat point B
Execution request: IRATHO.AttOutCSat point C
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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 28Inter-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
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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 29Inter-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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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 30Inter-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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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 31Inter-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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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 32Inter-RAT Handover Counter System
PS Inter-RAT handover procedure
PS handover from WCDMA to GPRSThis procedure can be divided into two steps: − Handover preparation:
▪ From point A to point B − Handover execution
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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 33Inter-RAT Handover Counter System
PS Inter-RAT handover counters (RNC)
Preparation request: VS.IRATHO.EvalPSOutUTRAN.RNCat point A
Preparation success and Execution request: VS.IRATHO.AttPSOutUTRAN.RNCat point B
Execution success: VS.IRATHO.SuccPSOutUTRAN.RNCat point D
PS Inter-RAT handover counters (Cell)
Execution request: IRATHO.AttOutPSUTRANat point B34
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 34Inter-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 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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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 35Inter-RAT Handover Counter System
PS Inter-RAT handover failure counters (Cell)
Configuration unsupported:
IRATHO.FailOutPSUTRAN.CfgUnsuppPhysical Channel Failure:
IRATHO.FailOutPSUTRAN.PhyChFailIRATHO.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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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 36Inter-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
*
_
t
PpHOAttemp
CSInterRAT
s
PpHOSucces
CSInterRAT
SR
ATPpHO
CSInterreR
=
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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 37Inter-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)38
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 38Inter-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
*
_
HOAttempt
CSInterRAT
HOSuccess
CSInterRAT
SR
HO
CSInterRAT
=
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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 39Inter-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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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 40Inter-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
_
=
×
tOut
PpHOAttemp
PSInterRAT
sOut
PpHOSucces
PSInterRAT
SR
PpHO
PSInterRAT
out41
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 41Inter-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.RNC42
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 42Inter-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
_
=
×
ut
HOAttemptO
PSInterRAT
ut
HOSuccessO
PSInterRAT
SR
HO
PSInterRAT
out43
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 43Inter-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)44
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 44Chapter 1 Soft Handover Counter and KPI
Chapter 1 Soft Handover Counter and KPI
Chapter 2 Hard Handover Counter and KPI
Chapter 2 Hard Handover Counter and KPI
Chapter 3 Inter
Chapter 3 Inter
-
-
RAT Handover Counter and KPI
RAT Handover Counter and KPI
Chapter 4 HSDPA Handover Counter and KPI
Chapter 4 HSDPA Handover Counter and KPI
Chapter 5 HSUPA Handover Counter and KPI
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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 45HSDPA 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
×
=
empNum
HtoHSHOAtt
cessNum
HtoHSHOSuc
cessRatio
HtoHSHOSuc
46
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 46HSDPA 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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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 47HSDPA 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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HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 48HSDPA 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
×
=
m
HOAttempNu
HtoHInterH
um
HOSuccessN
HtoHInterH
atio
HOSuccessR
HtoHInterH
49
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 49HSDPA 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
50
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 50HSDPA 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-HS-DSCH, the RNC measures this item in the original cell
51
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 51HSDPA 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
×
=
mpNum
HtoRHOAtte
essNum
HtoRHOSucc
essRatio
HtoRHOSucc
52
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 52HSDPA 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
53
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 53HSDPA 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
54
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 54HSDPA 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
×
=
mpNum
RtoHHOAtte
essNum
RtoHHOSucc
essRatio
RtoHHOSucc
55
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 55HSDPA 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
56
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 56HSDPA 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
57
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 57HSDPA 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
_
=
×
pt
RATHOAttem
HSDPAInter
ss
RATHOSucce
HSDPAInter
SR
RATHO
HSDPAInter
58
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 58HSDPA 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
59
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 59HSDPA 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
60
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 60Chapter 1 Soft Handover Counter and KPI
Chapter 1 Soft Handover Counter and KPI
Chapter 2 Hard Handover Counter and KPI
Chapter 2 Hard Handover Counter and KPI
Chapter 3 Inter
Chapter 3 Inter
-
-
RAT Handover Counter and KPI
RAT Handover Counter and KPI
Chapter 4 HSDPA Handover Counter and KPI
Chapter 4 HSDPA Handover Counter and KPI
Chapter 5 HSUPA Handover Counter and KPI
61
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 61HSUPA 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
62
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 62Channel 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
63
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 63Channel 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
64
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 64Channel 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
65
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 65Channel 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
66
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 66Channel 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
67
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 67Channel 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
68
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 68Inter-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
69
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 69Summary