Present by: E2E TeamDate: 2012-06-13

UMTS Handover Performance Monitor Guide

Scope2

Definition of SHO Handover KPI SHO Performance Analysis SHO Performance Improvement Definition of Inter-Frequency Handover KPI Inter-Frequency Performance Analysis Inter-Frequency Performance Improvement Definition of Inter-RAT Handover KPI Inter-RAT Performance Analysis Inter-RAT Performance Improvement

Definition of SHO Handover KPI3

Soft handover is the procedure during which a radio link is added to or deleted from the active set. When an UE moves or the radio link quality fluctuates, the RNC adds a radio link to the active set if the RNC detects that the cell of the radio link is of good signal quality. If the quality of a radio link in a cell in the active set becomes lower than the predefined threshold, the RNC deletes this radio link from the active set.

RNC Level:VS.SHO.Succ.RNC / VS.SHO.Att.RNC *100%

Cell Level:(VS.SHO.SuccRLDel+ VS.SHO.SuccRLAdd) / (VS.SHO.AttRLDel+ VS.SHO.AttRLAdd)*100%

SHO Performance Analysis4

Cell 54670 Soft handover success rate is below 99%.

Site BKC9109U has IP clock failure and SCTP link failure alarm.

The failure reason are NoReply and Other reason.

RAW Counters:VS.SHO.AttRLAddVS.SHO.AttRLDelVS.SHO.SuccRLAddVS.SHO.SuccRLDelVS.SHO.Fail.Cell VS.SHO.FailRLAdd.CfgUnsuppVS.SHO.FailRLAdd.ISR VS.SHO.FailRLAdd.InvCfg VS.SHO.FailRLAdd.NoReply VS.SHO.Fail.Other.Cell

SHO Performance Improvement5

1.The RNC fails to receive response to active set update command for adding/deleting links. This is a major cause to SHO failure. It occurs in areas with weak coverage and small handover area. RF optimization must be performed in the areas.After we check site BKC9109U has IP clock failure and SCTP link failure alarm , we need solve those transmission alarm first.

Definition of Inter-Frequency Handover KPI6

When the RNC decides to perform inter-frequency hard handover, the RNC sends the message PHYSICAL CHANGEL RECONFIGURATION to UE, and one inter-frequency hard handover attempt in the best cell is increased . When the RNC receives the message PHYSICAL CHANEL RECONFIGURATION COMPLETE from the UE , the inter-frequency hard handover is successful, and one successful inter-frequency hard handover in the best cell is increased.

RNC Level:The outgoing inter-frequency hard handover success rate is calculated in the following formula:VS.HHO.InterFreq.Succ.RNC / VS.HHO.InterFreq.Att.RNC*100%

Cell level:The outgoing inter-frequency hard handover success rate is calculate in the following formula:VS.HHO.SuccInterFreqOut / VS.HHO.AttInterFreqOut*100%

Inter-Frequency Performance Analysis7

HHO failures main reason due to Uu no reply.

CM is much larger than HHO.

HHO failures caused by PS service and due to poor Ec/Io.

RAW Counters:VS.HHO.AttInterFreqOutVS.HHO.SuccInterFreqOutVS.HHO.FailInterFreqOut.CfgUnsuppVS.HHO.FailInterFreqOut.PyhChFailVS.HHO.FailInterFreqOut.ISRVS.HHO.FailInterFreqOut.CellUpdtVS.HHO.FailInterFreqOut.InvCfgVS.HHO.FailInterFreqOut.NoReplyRAW Counters:VS.CM.DLSF2.Act.AttVS.HHO.AttInterFreqOutVS.HHO.SuccInterFreqOutVS.HHO.AttInterFreqOut.CSVS.HHO.SuccInterFreqOut.CSVS.HHO.AttInterFreqOut.PSVS.HHO.SuccInterFreqOut.PS

RAW Counters:VS.HHO.AttInterFreqOut.CS.TrigRscpVS.HHO.AttInterFreqOut.CS.TrigEcNoVS.HHO.AttInterFreqOut.PS.TrigRscpVS.HHO.AttInterFreqOut.PS.TrigEcNoVS.HHO.SuccInterFreqOut.CS.RscpVS.HHO.SuccInterFreqOut.CS.EcNoVS.HHO.SuccInterFreqOut.PS.RscpVS.HHO.SuccInterFreqOut.PS.EcNo

Inter-Frequency Performance Improvement8

1.Reduce CM for cell 44222.General Method to Reduce Compress Mode:Modify 2D/2F/2B Threshold • Event 2D: Start compress mode• Event 2F: Stop compress mode• Event 2B: Start Inter Freq handover

Inter-Frequency Performance Improvement9

Current Setting: No cell level parameters setting;SET UINTERFREQHOCOV:PRDREPORTINTERVAL=D500, INTERFREQCSTHD2DECN0=-14, INTERFREQCSTHD2FECN0=-12, INTERFREQCSTHD2DRSCP=-95, INTERFREQCSTHD2FRSCP=-92, INTERFREQHTHD2DECN0=-14, INTERFREQR99PSTHD2DECN0=-14, INTERFREQHTHD2FECN0=-12, INTERFREQR99PSTHD2FECN0=-12, INTERFREQHTHD2DRSCP=-95, INTERFREQR99PSTHD2DRSCP=-95, INTERFREQHTHD2FRSCP=-92, INTERFREQR99PSTHD2FRSCP=-92, TARGETFREQHTHDECN0=-12, TARGETFREQR99PSTHDECN0=-12, TARGETFREQHTHDRSCP=-92, TARGETFREQR99PSTHDRSCP=-92, USEDFREQHTHDECN0=-12, USEDFREQR99PSTHDECN0=-12, USEDFREQHTHDRSCP=-92, USEDFREQR99PSTHDRSCP=-92, HYSTFORPRDINTERFREQ=0, TIMETOTRIGFORPRDINTERFREQ=0, INTERFREQREPORTMODE=PERIODICAL_REPORTING, INTERFREQFILTERCOEF=D3, HYSTFOR2D=4, HYSTFOR2F=4, WEIGHTFORUSEDFREQ=0, TIMETOTRIG2D=D320, TIMETOTRIG2F=D1280, TARGETFREQCSTHDECN0=-12, TARGETFREQCSTHDRSCP=-92, USEDFREQCSTHDECN0=-12, USEDFREQCSTHDRSCP=-92, INTERFREQMEASTIME=60, TIMETOINTERFREQHO=0;

Tuning suggestion : ADD UCELLINTERFREQHOCOV :

Inter-Frequency Performance Improvement10

2.Change UHOCOMM parameters : no cell level;SET UHOCOMM:DIVCTRLFIELD=MAY, HSPATIMERLEN=0,

COEXISTMEASTHDCHOICE=COEXIST_MEAS_THD_CHOICE_INTERRAT, MAXEDCHCELLINACTIVESET=3, IFANTIPINGPANGTIMERLENGTH=30;

Tuning suggestion : ADD UCELHOCOMM :ADD UCELLHOCOMM: CellId=44222, InterFreqRATSwitch=INTERFREQ, CoexistMeasThdChoice =COEXIST_MEAS_THD_CHOICE_INTERFREQ, CSServiceHOSwitch=OFF,

PSServiceHOSwitch=OFF;

Definition of Inter-RAT Handover KPI11

During the inter-RAT handover, if the RNC sends the message HANDOVER FROM UTRAN COMMAND or CELL CHANGE ORDER FROM UTRAN, one inter-RAT handover attempt in the best cell is increased. If the message IU RELEASE COMMAND is received and the cause value is Successful Relocation, Normal Release, or Network Optimization, the inter-RAT handover is successful and one successful inter-RAT handover in the best cell is increased.

RNC Level:The outgoing inter-RAT handover success rate for CS domain is calculated in the following formula: VS.IRATHO.SuccOutCS.RNC / VS.IRATHO.AttOutCS.RNC *100%The outgoing inter-RAT handover success rate for PS domain is calculated in the following formula: VS.IRATHO.SuccOutPSUTRAN.RNC / VS.IRATHO.AttOutPSUTRAN.RNC *100%

Cell Level:The outgoing inter-RAT handover success rate for CS domain is calculated in the following formula: IRATHO.SuccOutCS / IRATHO.AttOutCS *100%The outgoing inter-RAT handover success rate for PS domain is calculated in the following formula: IRATHO.SuccOutPSUTRAN / IRATHO.AttOutPSUTRAN *100%

Inter-RAT Performance Analysis12

CS 3G2G handover failures main reason due to physical channel fail.

The reason of cell 78 has low CS 3G2G handover success rate due to handover to below yellow colors neighbor cells have so much failures .

RAW Counters:IRATHO.AttOutCSIRATHO.SuccOutCSIRATHO.FailOutCS.CfgUnsuppIRATHO.FailOutCS.PhyChFailVS.IRATHO.FailOutCS.NoReplyVS.IRATHO.FailOutCS.Abort

RAW Counters:VS.IRATHO.AttOutCS.GcellVS.IRATHO.SuccOutCS.GcellVS.IRATHO.FailOutCS.UEFail.GCell

Inter-RAT Performance Analysis13

PS 3G2G handover failures main reason due to physical channel fail.

The reason of cell 44288 has low PS 3G2G handover success rate due to handover to below yellow colors neighbor cells have so much failures .

RAW Counters:IRATHO.AttOutPSUTRANIRATHO.SuccOutPSUTRANIRATHO.FailOutPSUTRAN.CfgUnsuppIRATHO.FailOutPSUTRAN.PhyChFailVS.IRATHO.FailOutPSUTRAN.NoReplyVS.IRATHO.FailOutPS.Abort

RAW Counters:VS.IRATHO.AttOutPSUTRAN.GcellVS.IRATHO.SuccOutPSUTRAN.GcellVS.IRATHO.FaiOutPSUTRAN.UEFail.GCell

Inter-RAT Performance Improvement14

1. Tuning suggestion of cell 78:

ADD UCELLINTERRATHOCOV:CELLID=78, INTERRATPERIODREPORTINTERVAL=D1000, HYSTFORINTERRAT=0, TIMETOTRIGFORNONVERIFY=0, TIMETOTRIGFORVERIFY=0, INTERRATFILTERCOEF=D3, INTERRATCSTHD2DECN0=-14, INTERRATCSTHD2FECN0=-12, INTERRATCSTHD2DRSCP=-106, INTERRATCSTHD2FRSCP=-101, INTERRATHTHD2DECN0=-24, INTERRATR99PSTHD2DECN0=-24, INTERRATHTHD2FECN0=-13, INTERRATR99PSTHD2FECN0=-13, INTERRATHTHD2DRSCP=-115, INTERRATR99PSTHD2DRSCP=-115, INTERRATHTHD2FRSCP=-107, INTERRATR99PSTHD2FRSCP=-107, INTERRATREPORTMODE=PERIODICAL_REPORTING, FILTERCOEFOF2D2F=D3, WEIGHTFORUSEDFREQ=0, HYSTFOR2D=4, HYSTFOR2F=4, TRIGTIME2D=D640, TRIGTIME2F=D1280, BSICVERIFY=REQUIRED, TARGETRATCSTHD=21, TARGETRATR99PSTHD=21,

TARGETRATHTHD=21, INTERRATMEASTIME=60, INTERRATPINGPONGTIMER=0, INTERRATPINGPONGHYST=0, INTERRATPHYCHFAILNUM=3, PENALTYTIMEFORPHYCHFAIL=30;

Tuning Suggestion:MOD UCELLINTERRATHOCOV:CELLID=78, INTERRATPERIODREPORTINTERVAL=D1000, HYSTFORINTERRAT=0, TIMETOTRIGFORNONVERIFY=0, TIMETOTRIGFORVERIFY=0, INTERRATFILTERCOEF=D3, INTERRATCSTHD2DECN0=-14, INTERRATCSTHD2FECN0=-12, INTERRATCSTHD2DRSCP=-100, INTERRATCSTHD2FRSCP=-97, INTERRATHTHD2DECN0=-24, INTERRATR99PSTHD2DECN0=-24, INTERRATHTHD2FECN0=-13, INTERRATR99PSTHD2FECN0=-13, INTERRATHTHD2DRSCP=-115, INTERRATR99PSTHD2DRSCP=-115, INTERRATHTHD2FRSCP=-107, INTERRATR99PSTHD2FRSCP=-107, INTERRATREPORTMODE=PERIODICAL_REPORTING, FILTERCOEFOF2D2F=D3, WEIGHTFORUSEDFREQ=0, HYSTFOR2D=4, HYSTFOR2F=4, TRIGTIME2D=D640, TRIGTIME2F=D1280, BSICVERIFY=REQUIRED, TARGETRATCSTHD=26, TARGETRATR99PSTHD=21, TARGETRATHTHD=21, INTERRATMEASTIME=60, INTERRATPINGPONGTIMER=0, INTERRATPINGPONGHYST=0, INTERRATPHYCHFAILNUM=3, PENALTYTIMEFORPHYCHFAIL=30;

MOD U2GNCELL:RNCID=112, CELLID=78, GSMCELLINDEX=1256, BLINDHOFLAG=FALSE, NPRIOFLAG=FALSE, CIOOFFSET=-10,

QOFFSET1SN=0, QRXLEVMIN=-45, TPENALTYHCSRESELECT=D0, TEMPOFFSET1=D3, DRDECN0THRESHHOLD=-12, SIB11IND=TRUE, SIB12IND=FALSE, MBDRFLAG=FALSE, MBDRPRIO=0; MOD U2GNCELL:RNCID=112, CELLID=78, GSMCELLINDEX=15378, BLINDHOFLAG=FALSE, NPRIOFLAG=FALSE,

CIOOFFSET=-10, QOFFSET1SN=0, QRXLEVMIN=-45, TPENALTYHCSRESELECT=D0, TEMPOFFSET1=D3, DRDECN0THRESHHOLD=-12, SIB11IND=TRUE, SIB12IND=FALSE, MBDRFLAG=FALSE, MBDRPRIO=0;

Inter-RAT Performance Improvement15

2. Tuning suggestion of cell 44288:

ADD UCELLINTERRATHOCOV:CELLID=44288, INTERRATPERIODREPORTINTERVAL=D1000, HYSTFORINTERRAT=0, TIMETOTRIGFORNONVERIFY=0, TIMETOTRIGFORVERIFY=0, INTERRATFILTERCOEF=D3, INTERRATCSTHD2DECN0=-14, INTERRATCSTHD2FECN0=-12, INTERRATCSTHD2DRSCP=-106, INTERRATCSTHD2FRSCP=-101, INTERRATHTHD2DECN0=-24, INTERRATR99PSTHD2DECN0=-24, INTERRATHTHD2FECN0=-13, INTERRATR99PSTHD2FECN0=-13, INTERRATHTHD2DRSCP=-115, INTERRATR99PSTHD2DRSCP=-115, INTERRATHTHD2FRSCP=-107, INTERRATR99PSTHD2FRSCP=-107, INTERRATREPORTMODE=PERIODICAL_REPORTING, FILTERCOEFOF2D2F=D3, WEIGHTFORUSEDFREQ=0, HYSTFOR2D=4, HYSTFOR2F=4, TRIGTIME2D=D640, TRIGTIME2F=D1280, BSICVERIFY=REQUIRED, TARGETRATCSTHD=21, TARGETRATR99PSTHD=21,

TARGETRATHTHD=21, INTERRATMEASTIME=60, INTERRATPINGPONGTIMER=0, INTERRATPINGPONGHYST=0, INTERRATPHYCHFAILNUM=3, PENALTYTIMEFORPHYCHFAIL=30;

Tuning Suggestion:MOD UCELLINTERRATHOCOV:CELLID=44288, INTERRATPERIODREPORTINTERVAL=D1000, HYSTFORINTERRAT=0, TIMETOTRIGFORNONVERIFY=0, TIMETOTRIGFORVERIFY=0, INTERRATFILTERCOEF=D3, INTERRATCSTHD2DECN0=-14, INTERRATCSTHD2FECN0=-12, INTERRATCSTHD2DRSCP=-106, INTERRATCSTHD2FRSCP=-101, INTERRATHTHD2DECN0=-16, INTERRATR99PSTHD2DECN0=-16, INTERRATHTHD2FECN0=-14, INTERRATR99PSTHD2FECN0=-14, INTERRATHTHD2DRSCP=-115, INTERRATR99PSTHD2DRSCP=-115, INTERRATHTHD2FRSCP=-112, INTERRATR99PSTHD2FRSCP=-112, INTERRATREPORTMODE=PERIODICAL_REPORTING, FILTERCOEFOF2D2F=D3, WEIGHTFORUSEDFREQ=0, HYSTFOR2D=4, HYSTFOR2F=4, TRIGTIME2D=D640, TRIGTIME2F=D1280, BSICVERIFY=REQUIRED, TARGETRATCSTHD=21, TARGETRATR99PSTHD=31, TARGETRATHTHD=31, INTERRATMEASTIME=60, INTERRATPINGPONGTIMER=0, INTERRATPINGPONGHYST=0, INTERRATPHYCHFAILNUM=1, PENALTYTIMEFORPHYCHFAIL=60;

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