How to Improve Code and DL Power Congestion

High code and DL power congestion issue

High code and DL power congestion issue

Huawei Technologies Co., Ltd.

Oct 2013

In country X, City Y, Customer complaint about Capacity issue and low HSUPA throughput

during Special events. Complaint area is hot spot and mostly special event happened there.

No Active alarm on surrounding sites.

1. Congestion KPIs analysis:- From the KPI can see many code cong and DL Power cong.

2. Parameter setting verification

2. DT held at the complaint spot.

I-Site location

ii. Google Location

iii.Outdoor test RSCP

iv. Outdoor Test ECNO

From the above test result, RSCP and ECNO are quite good at the complaint location. We notice that there is not any coverage problem. Only problem of high traffic during the special event thats why get customer complaint.

1. Parameter optimizationPurpose to implement below action to reduce DL power congestion and code congestion:

1- Purpose to change PCPICH power and Maxtxpower setting on site NTB6709 as below:CELL NAMECIPCPICH-currentPCPICH-recommendMaxtxpower-currentMaxtxpower-recommend

NTB6709U_8NB01_S03722300310400430

NTB6709V_8NB01_S0112547330310430

NTB6709V_8NB01_S0312557300310400430

NTB6709W_8NB01_S0122337330310430

NTB6709W_8NB01_S0322347300310400430

2- Change HSPDSCH Code number from 5 to 2.3- Downlink CAC parameter optimization as below standard:DLCONVAMRTHDDLCONVNONAMRTHDDLOTHERTHDDLHOTHDDLCELLTOTALTHD

9090859295

4- Down link LDR action changing as below standardDLLDRFIRSTACTIONDLLDRSECONDACTIONDLLDRTHIRDACTION

CodeAdjBERateRedInterFreqLDHO

5- Common channel power changingCommandParameterCurrent ValueRecommend Value

MOD UCELLPSCHPower-5-8

MOD UCELLSSCHPower-5-8

MOD UCELLBCHPower-2-5

MOD UAICHPWROFFSETAICHPowerOffset-6-9

MOD UPICHPWROFFSETPICHPowerOffset-7-10

MOD USCCPCHPCHPower-2-5

6- LDM parameter changing to make UE entry LDR status quickerDLLDRTRIGTHDDLLDRRELTHD

current value7060

recommend value6050

7- 1B event threshold changing to make UE leave active set easier and reduce SHO overhead.INTRARELTHDFOR1BCSVPINTRARELTHDFOR1BCSNVPINTRARELTHDFOR1BPS

current value-12-12-12

recommend value-10-10-10

Parameter changing script:

Application of Cell is recommended to satisfy high traffic requirement.

After Change parameter KPI Get normal.

RRC Setup Success Ratio (service)(%)

CS RAB Setup Success Ratio (Cell)(%)

RAB Establishment Success Rate - PS(%)

VS.CS.AMR.Call.Drop.Cell.Rate(%)

VS.PS.Call.Drop.Cell.Rate(%)

VS.RRC.Rej.Sum

VS.RAB.FailEstabCS.Cong

VS.RAB.FailEstabPS.Cong

For such kind of issue, you can have try by changing the suggested parameter.

EMBED PowerPoint.Slide.12

Network recommended value

Current setting

Current setting

Current setting

Network recommended value

Network recommended value

Prepared by: -

Mr. Sanjeev K Sharma

Staff ID-00702301

Dept. GSRC India

Cause Analysis

Alarm

Symptoms

Handling Process

Result

Suggestion

2014-06-25HUAWEI CONFIDENTIALPage7, Total13

_1444742514/Parameter changing mml.txt//HSPDSCH Code numMOD UCELLHSDPA:CELLID=4,ALLOCCODEMODE=Manual,HSPDSCHCODENUM=2;MOD UCELLHSDPA:CELLID=6,ALLOCCODEMODE=Manual,HSPDSCHCODENUM=2;MOD UCELLHSDPA:CELLID=11004,ALLOCCODEMODE=Manual,HSPDSCHCODENUM=2;MOD UCELLHSDPA:CELLID=11006,ALLOCCODEMODE=Manual,HSPDSCHCODENUM=2;MOD UCELLHSDPA:CELLID=715,ALLOCCODEMODE=Manual,HSPDSCHCODENUM=2;MOD UCELLHSDPA:CELLID=722,ALLOCCODEMODE=Manual,HSPDSCHCODENUM=2;MOD UCELLHSDPA:CELLID=12547,ALLOCCODEMODE=Manual,HSPDSCHCODENUM=2;MOD UCELLHSDPA:CELLID=12557,ALLOCCODEMODE=Manual,HSPDSCHCODENUM=2;MOD UCELLHSDPA:CELLID=22337,ALLOCCODEMODE=Manual,HSPDSCHCODENUM=2;MOD UCELLHSDPA:CELLID=22347,ALLOCCODEMODE=Manual,HSPDSCHCODENUM=2;MOD UCELLHSDPA:CELLID=3150,ALLOCCODEMODE=Manual,HSPDSCHCODENUM=2;MOD UCELLHSDPA:CELLID=13380,ALLOCCODEMODE=Manual,HSPDSCHCODENUM=2;MOD UCELLHSDPA:CELLID=25130,ALLOCCODEMODE=Manual,HSPDSCHCODENUM=2;

//DL power CAC parameterMOD UCELLCAC:CELLID=4,DLCONVAMRTHD=90,DLCONVNONAMRTHD=90,DLOTHERTHD=85,DLHOTHD=92,DLCELLTOTALTHD=95;MOD UCELLCAC:CELLID=6,DLCONVAMRTHD=90,DLCONVNONAMRTHD=90,DLOTHERTHD=85,DLHOTHD=92,DLCELLTOTALTHD=95;MOD UCELLCAC:CELLID=11004,DLCONVAMRTHD=90,DLCONVNONAMRTHD=90,DLOTHERTHD=85,DLHOTHD=92,DLCELLTOTALTHD=95;MOD UCELLCAC:CELLID=11006,DLCONVAMRTHD=90,DLCONVNONAMRTHD=90,DLOTHERTHD=85,DLHOTHD=92,DLCELLTOTALTHD=95;MOD UCELLCAC:CELLID=715,DLCONVAMRTHD=90,DLCONVNONAMRTHD=90,DLOTHERTHD=85,DLHOTHD=92,DLCELLTOTALTHD=95;MOD UCELLCAC:CELLID=722,DLCONVAMRTHD=90,DLCONVNONAMRTHD=90,DLOTHERTHD=85,DLHOTHD=92,DLCELLTOTALTHD=95;MOD UCELLCAC:CELLID=12547,DLCONVAMRTHD=90,DLCONVNONAMRTHD=90,DLOTHERTHD=85,DLHOTHD=92,DLCELLTOTALTHD=95;MOD UCELLCAC:CELLID=12557,DLCONVAMRTHD=90,DLCONVNONAMRTHD=90,DLOTHERTHD=85,DLHOTHD=92,DLCELLTOTALTHD=95;MOD UCELLCAC:CELLID=22337,DLCONVAMRTHD=90,DLCONVNONAMRTHD=90,DLOTHERTHD=85,DLHOTHD=92,DLCELLTOTALTHD=95;MOD UCELLCAC:CELLID=22347,DLCONVAMRTHD=90,DLCONVNONAMRTHD=90,DLOTHERTHD=85,DLHOTHD=92,DLCELLTOTALTHD=95;MOD UCELLCAC:CELLID=3150,DLCONVAMRTHD=90,DLCONVNONAMRTHD=90,DLOTHERTHD=85,DLHOTHD=92,DLCELLTOTALTHD=95;MOD UCELLCAC:CELLID=13380,DLCONVAMRTHD=90,DLCONVNONAMRTHD=90,DLOTHERTHD=85,DLHOTHD=92,DLCELLTOTALTHD=95;MOD UCELLCAC:CELLID=25130,DLCONVAMRTHD=90,DLCONVNONAMRTHD=90,DLOTHERTHD=85,DLHOTHD=92,DLCELLTOTALTHD=95;

//DL LDR action MOD UCELLLDR:CELLID=4,DLLDRFIRSTACTION=CodeAdj,DLLDRSECONDACTION=BERateRed,DLLDRTHIRDACTION=InterFreqLDHO;MOD UCELLLDR:CELLID=6,DLLDRFIRSTACTION=CodeAdj,DLLDRSECONDACTION=BERateRed,DLLDRTHIRDACTION=InterFreqLDHO;MOD UCELLLDR:CELLID=11004,DLLDRFIRSTACTION=CodeAdj,DLLDRSECONDACTION=BERateRed,DLLDRTHIRDACTION=InterFreqLDHO;MOD UCELLLDR:CELLID=11006,DLLDRFIRSTACTION=CodeAdj,DLLDRSECONDACTION=BERateRed,DLLDRTHIRDACTION=InterFreqLDHO;MOD UCELLLDR:CELLID=715,DLLDRFIRSTACTION=CodeAdj,DLLDRSECONDACTION=BERateRed,DLLDRTHIRDACTION=InterFreqLDHO;MOD UCELLLDR:CELLID=722,DLLDRFIRSTACTION=CodeAdj,DLLDRSECONDACTION=BERateRed,DLLDRTHIRDACTION=InterFreqLDHO;MOD UCELLLDR:CELLID=12547,DLLDRFIRSTACTION=CodeAdj,DLLDRSECONDACTION=BERateRed,DLLDRTHIRDACTION=InterFreqLDHO;MOD UCELLLDR:CELLID=12557,DLLDRFIRSTACTION=CodeAdj,DLLDRSECONDACTION=BERateRed,DLLDRTHIRDACTION=InterFreqLDHO;MOD UCELLLDR:CELLID=22337,DLLDRFIRSTACTION=CodeAdj,DLLDRSECONDACTION=BERateRed,DLLDRTHIRDACTION=InterFreqLDHO;MOD UCELLLDR:CELLID=22347,DLLDRFIRSTACTION=CodeAdj,DLLDRSECONDACTION=BERateRed,DLLDRTHIRDACTION=InterFreqLDHO;MOD UCELLLDR:CELLID=3150,DLLDRFIRSTACTION=CodeAdj,DLLDRSECONDACTION=BERateRed,DLLDRTHIRDACTION=InterFreqLDHO;MOD UCELLLDR:CELLID=13380,DLLDRFIRSTACTION=CodeAdj,DLLDRSECONDACTION=BERateRed,DLLDRTHIRDACTION=InterFreqLDHO;MOD UCELLLDR:CELLID=25130,DLLDRFIRSTACTION=CodeAdj,DLLDRSECONDACTION=BERateRed,DLLDRTHIRDACTION=InterFreqLDHO;

//LDM parameter MOD UCELLLDM:CELLID=3150,DLLDRTRIGTHD=60,DLLDRRELTHD=50;MOD UCELLLDM:CELLID=13380,DLLDRTRIGTHD=60,DLLDRRELTHD=50;MOD UCELLLDM:CELLID=25130,DLLDRTRIGTHD=60,DLLDRRELTHD=50;

//1B event threshold changingADD UCELLINTRAFREQHO:RNCID=14,CELLID=4,INTRAFREQMEASQUANTITY=CPICH_EC/NO,INTRARELTHDFOR1BCSVP=10,INTRARELTHDFOR1BCSNVP=10,INTRARELTHDFOR1BPS=10,TRIGTIME1A=D160,TRIGTIME1B=D320,TRIGTIME1C=D240,TRIGTIME1D=D320,SHOQUALMIN=-20;ADD UCELLINTRAFREQHO:RNCID=14,CELLID=6,INTRAFREQMEASQUANTITY=CPICH_EC/NO,INTRARELTHDFOR1BCSVP=10,INTRARELTHDFOR1BCSNVP=10,INTRARELTHDFOR1BPS=10,TRIGTIME1A=D160,TRIGTIME1B=D320,TRIGTIME1C=D240,TRIGTIME1D=D320,SHOQUALMIN=-20;ADD UCELLINTRAFREQHO:RNCID=14,CELLID=11004,INTRAFREQMEASQUANTITY=CPICH_EC/NO,INTRARELTHDFOR1BCSVP=10,INTRARELTHDFOR1BCSNVP=10,INTRARELTHDFOR1BPS=10,TRIGTIME1A=D160,TRIGTIME1B=D320,TRIGTIME1C=D240,TRIGTIME1D=D320,SHOQUALMIN=-20;ADD UCELLINTRAFREQHO:RNCID=14,CELLID=11006,INTRAFREQMEASQUANTITY=CPICH_EC/NO,INTRARELTHDFOR1BCSVP=10,INTRARELTHDFOR1BCSNVP=10,INTRARELTHDFOR1BPS=10,TRIGTIME1A=D160,TRIGTIME1B=D320,TRIGTIME1C=D240,TRIGTIME1D=D320,SHOQUALMIN=-20;ADD UCELLINTRAFREQHO:RNCID=14,CELLID=715,INTRAFREQMEASQUANTITY=CPICH_EC/NO,INTRARELTHDFOR1BCSVP=10,INTRARELTHDFOR1BCSNVP=10,INTRARELTHDFOR1BPS=10,TRIGTIME1A=D160,TRIGTIME1B=D320,TRIGTIME1C=D240,TRIGTIME1D=D320,SHOQUALMIN=-20;ADD UCELLINTRAFREQHO:RNCID=14,CELLID=722,INTRAFREQMEASQUANTITY=CPICH_EC/NO,INTRARELTHDFOR1BCSVP=10,INTRARELTHDFOR1BCSNVP=10,INTRARELTHDFOR1BPS=10,TRIGTIME1A=D160,TRIGTIME1B=D320,TRIGTIME1C=D240,TRIGTIME1D=D320,SHOQUALMIN=-20;ADD UCELLINTRAFREQHO:RNCID=14,CELLID=12547,INTRAFREQMEASQUANTITY=CPICH_EC/NO,INTRARELTHDFOR1BCSVP=10,INTRARELTHDFOR1BCSNVP=10,INTRARELTHDFOR1BPS=10,TRIGTIME1A=D160,TRIGTIME1B=D320,TRIGTIME1C=D240,TRIGTIME1D=D320,SHOQUALMIN=-20;ADD UCELLINTRAFREQHO:RNCID=14,CELLID=12557,INTRAFREQMEASQUANTITY=CPICH_EC/NO,INTRARELTHDFOR1BCSVP=10,INTRARELTHDFOR1BCSNVP=10,INTRARELTHDFOR1BPS=10,TRIGTIME1A=D160,TRIGTIME1B=D320,TRIGTIME1C=D240,TRIGTIME1D=D320,SHOQUALMIN=-20;ADD UCELLINTRAFREQHO:RNCID=14,CELLID=22337,INTRAFREQMEASQUANTITY=CPICH_EC/NO,INTRARELTHDFOR1BCSVP=10,INTRARELTHDFOR1BCSNVP=10,INTRARELTHDFOR1BPS=10,TRIGTIME1A=D160,TRIGTIME1B=D320,TRIGTIME1C=D240,TRIGTIME1D=D320,SHOQUALMIN=-20;ADD UCELLINTRAFREQHO:RNCID=14,CELLID=22347,INTRAFREQMEASQUANTITY=CPICH_EC/NO,INTRARELTHDFOR1BCSVP=10,INTRARELTHDFOR1BCSNVP=10,INTRARELTHDFOR1BPS=10,TRIGTIME1A=D160,TRIGTIME1B=D320,TRIGTIME1C=D240,TRIGTIME1D=D320,SHOQUALMIN=-20;ADD UCELLINTRAFREQHO:RNCID=14,CELLID=3150,INTRAFREQMEASQUANTITY=CPICH_EC/NO,INTRARELTHDFOR1BCSVP=10,INTRARELTHDFOR1BCSNVP=10,INTRARELTHDFOR1BPS=10,TRIGTIME1A=D160,TRIGTIME1B=D320,TRIGTIME1C=D240,TRIGTIME1D=D320,SHOQUALMIN=-20;ADD UCELLINTRAFREQHO:RNCID=14,CELLID=13380,INTRAFREQMEASQUANTITY=CPICH_EC/NO,INTRARELTHDFOR1BCSVP=10,INTRARELTHDFOR1BCSNVP=10,INTRARELTHDFOR1BPS=10,TRIGTIME1A=D160,TRIGTIME1B=D320,TRIGTIME1C=D240,TRIGTIME1D=D320,SHOQUALMIN=-20;ADD UCELLINTRAFREQHO:RNCID=14,CELLID=25130,INTRAFREQMEASQUANTITY=CPICH_EC/NO,INTRARELTHDFOR1BCSVP=10,INTRARELTHDFOR1BCSNVP=10,INTRARELTHDFOR1BPS=10,TRIGTIME1A=D160,TRIGTIME1B=D320,TRIGTIME1C=D240,TRIGTIME1D=D320,SHOQUALMIN=-20;

//common channel power settingMOD UCELL: CellId=4, PSCHPower=-80, SSCHPower=-80, BCHPower=-50;MOD UCELL: CellId=6, PSCHPower=-80, SSCHPower=-80, BCHPower=-50;MOD UCELL: CellId=11004, PSCHPower=-80, SSCHPower=-80, BCHPower=-50;MOD UCELL: CellId=11006, PSCHPower=-80, SSCHPower=-80, BCHPower=-50;MOD UCELL: CellId=715, PSCHPower=-80, SSCHPower=-80, BCHPower=-50;MOD UCELL: CellId=722, PSCHPower=-80, SSCHPower=-80, BCHPower=-50;MOD UCELL: CellId=12547, PSCHPower=-80, SSCHPower=-80, BCHPower=-50;MOD UCELL: CellId=12557, PSCHPower=-80, SSCHPower=-80, BCHPower=-50;MOD UCELL: CellId=22337, PSCHPower=-80, SSCHPower=-80, BCHPower=-50;MOD UCELL: CellId=22347, PSCHPower=-80, SSCHPower=-80, BCHPower=-50;MOD UCELL: CellId=3150, PSCHPower=-80, SSCHPower=-80, BCHPower=-50;MOD UCELL: CellId=13380, PSCHPower=-80, SSCHPower=-80, BCHPower=-50;MOD UCELL: CellId=25130, PSCHPower=-80, SSCHPower=-80, BCHPower=-50;

MOD UAICHPWROFFSET: CellId=4, AICHPowerOffset=-9;MOD UAICHPWROFFSET: CellId=6, AICHPowerOffset=-9;MOD UAICHPWROFFSET: CellId=11004, AICHPowerOffset=-9;MOD UAICHPWROFFSET: CellId=11006, AICHPowerOffset=-9;MOD UAICHPWROFFSET: CellId=715, AICHPowerOffset=-9;MOD UAICHPWROFFSET: CellId=722, AICHPowerOffset=-9;MOD UAICHPWROFFSET: CellId=12547, AICHPowerOffset=-9;MOD UAICHPWROFFSET: CellId=12557, AICHPowerOffset=-9;MOD UAICHPWROFFSET: CellId=22337, AICHPowerOffset=-9;MOD UAICHPWROFFSET: CellId=22347, AICHPowerOffset=-9;MOD UAICHPWROFFSET: CellId=3150, AICHPowerOffset=-9;MOD UAICHPWROFFSET: CellId=13380, AICHPowerOffset=-9;MOD UAICHPWROFFSET: CellId=25130, AICHPowerOffset=-9;

MOD UPICHPWROFFSET: CellId=4, PICHPowerOffset=-10;MOD UPICHPWROFFSET: CellId=6, PICHPowerOffset=-10;MOD UPICHPWROFFSET: CellId=11004, PICHPowerOffset=-10;MOD UPICHPWROFFSET: CellId=11006, PICHPowerOffset=-10;MOD UPICHPWROFFSET: CellId=715, PICHPowerOffset=-10;MOD UPICHPWROFFSET: CellId=722, PICHPowerOffset=-10;MOD UPICHPWROFFSET: CellId=12547, PICHPowerOffset=-10;MOD UPICHPWROFFSET: CellId=12557, PICHPowerOffset=-10;MOD UPICHPWROFFSET: CellId=22337, PICHPowerOffset=-10;MOD UPICHPWROFFSET: CellId=22347, PICHPowerOffset=-10;MOD UPICHPWROFFSET: CellId=3150, PICHPowerOffset=-10;MOD UPICHPWROFFSET: CellId=13380, PICHPowerOffset=-10;MOD UPICHPWROFFSET: CellId=25130, PICHPowerOffset=-10;

MOD USCCPCH: CellId=4, PhyChId=8, PCHPower=-50;MOD USCCPCH: CellId=6, PhyChId=8, PCHPower=-50;MOD USCCPCH: CellId=11004, PhyChId=8, PCHPower=-50;MOD USCCPCH: CellId=11006, PhyChId=8, PCHPower=-50;MOD USCCPCH: CellId=715, PhyChId=8, PCHPower=-50;MOD USCCPCH: CellId=722, PhyChId=8, PCHPower=-50;MOD USCCPCH: CellId=12547, PhyChId=8, PCHPower=-50;MOD USCCPCH: CellId=12557, PhyChId=8, PCHPower=-50;MOD USCCPCH: CellId=22337, PhyChId=8, PCHPower=-50;MOD USCCPCH: CellId=22347, PhyChId=8, PCHPower=-50;MOD USCCPCH: CellId=3150, PhyChId=8, PCHPower=-50;MOD USCCPCH: CellId=13380, PhyChId=8, PCHPower=-50;MOD USCCPCH: CellId=25130, PhyChId=8, PCHPower=-50;

Thank you

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