Congestion or Low Throughput Mitigation Strategy

Optimization Strategy

Title : Dynamic CE & CE Overbooking Trial

How to Solve Different Type of Object : RNC Menara Mulia 2 Congestion/Low Throughput in Cell Level By : Strategic Optimization Team Strategic Optimization Team

Huawei Confidential

Congestion/Low Throughput Mitigation Strategy

3G Huawei

3G Nokia

2G Huawei

2G Nokia

2G Siemens

• CE Blocking/CE High Utilization • Iub Blocking/Iub High Utilization • DL- Power Blocking/DL Power High Utilization • UL- Power Blocking • Code Blocking • FACH Congestion • HSPA Throughput Optimization

• CE Blocking/CE High Utilization • Iub Blocking/Iub High Utilization • DL- Power Blocking/DL Power High Utilization • UL- Power Blocking • Code Blocking

• CS Blocking & Non PS blocking • PS Blocking & Non CS blocking • CS Blocking & PS blocking • 2G/3G reselection ( traffic share)

• CS Blocking & Non PS blocking • PS Blocking & Non CS blocking

• CS Blocking & Non PS blocking • PS Blocking & Non CS blocking • CS Blocking & PS blocking • 2G/3G reselection ( traffic share)

HUAWEI-H3I MANAGED SERVICES INDONESIA Huawei Confidential

3G Huawei Performance Counter for Congestion Vendo Resource r Tech Type Congestion Counter VS.RRC.Rej.ULCE.Cong+VS.RAB.FailEstabCS.ULCE.Cong+VS.RAB.FailEstabPS.ULCE.Cong Huawei 3G UL CE VS.RRC.Rej.DLCE.Cong+VS.RAB.FailEstabCS.DLCE.Cong+VS.RAB.FailEstabPS.DLCE.Cong Huawei 3G DL CE VS.RRC.Rej.ULPower.Cong+VS.RAB.FailEstabCS.ULPower.Cong+VS.RAB.FailEstabPS.ULPower .Cong VS.RRC.Rej.DLPower.Cong+VS.RAB.FailEstabCS.DLPower.Cong+VS.RAB.FailEstabPS.DLPower Huawei 3G DL Power .Cong VS.RRC.Rej.ULIUBBand.Cong+VS.RAB.FailEstabCS.ULIUBBand.Cong+VS.RAB.FailEstabPS.ULI Huawei 3G UL IuB UBBand.Cong VS.RRC.Rej.DLIUBBand.Cong+VS.RAB.FailEstabCS.DLIUBBand.Cong+VS.RAB.FailEstabPS.DLI 1st Action 2nd Action 3rd Action 4th Action Huawei Case 3G DL IuB UBBand.Cong Verify CE license and CE Modify LDR threshold. Sets VS.RRC.Rej.Code.Cong+VS.RAB.FailEstabCS.Code.Cong+VS.RAB.FailEstabPS.Code.Cong Huawei 3G HighCode CE Blocking/CE board capability. Physical Audit (involving TP CE license and/or board

Huawei

3G

UL Power

Step of Action Util

Commands involved : DSP LICENSE, DSP BBPTC Verify Iub BW setting in Iub Blocking/Iub High Node-B and in RNC. Sets Util involved : IPPATH, IPLOGICPORT

analysis)

Physical Audit (involving TP Iub BW upgrade analysis)

DL- Power Blocking/DL - Physical Audit (involving TP Activate 40W, maintain Power High Util analysis) existing PCPICH setting

UL- Power Blocking

upgrade

Increase Physical Audit (involving TP ULTOTALEQUSERNUM (e.g analysis) from 160 to Confidential 180) Huawei Modify

involved : UCELLLDM, UCELLLDR

Modify FTI to reduce Active Factor. Sets involved : TRMFACTOR, ADJMAP, ADJNODE

Modify DL CAC parameters set to higher value. Parameters involved : DLCONVAMRTHD, DLCONVNONAMRTHD, DLOTHERTHD, DLHOTHD, DLCELLTOTALTHD Turn-off NBMULCACALGOSELSWI TCH (set to ALGORITHM_OFF)

3G Huawei-CE, SPU & Code Details of Parameter Equip Catego Tech Parameter Name ment ry

Huawei 3G

Huawei 3G

Huawei 3G

Huawei 3G

Huawei 3G

Huawei 3G

Applicable Severi Cons Command Sample (Optional) Condition ty When Cell having Low HSUPA MAPSWITCH_MAP_H SET CE Disable 2ms TTI for accessibility due Throughput will SUPA_TTI_2MS_SWIT R4 UCORRMALGOSWITCH:MAPSWITCH=MAP_HSUPA_TT Blocking HSUPA service UL Power degraded with CH I_2MS_SWITCH-0; Congestion only 10 ms TTI >0.5% lower value UE reduce Maximum experiences number of difficulty retransmissions of High SPU Load accessing the SPU the RRC N300 due traffic network when R4 SET UIDLEMODETIMER:N300=1; Load CONNECTION increase >70% the Uu interface REQUEST quality is poor or message.E.g from 3 the system is to 1 overloaded PS Total Traffic increase CELL-PCH will decrease & inactivity timer for High SPU Load PsInactTmrForPreFst SPU RRC SR will SET UEs enabled with the due traffic R3 Drm Load statistically UPSINACTTIMER:PSINACTTMRFORPREFSTDRM=900, Fast Dormancy increase >70% degrade due less feature attempt When Cell HSDPA Reduce having Low Throughput will MOD Code HSPDSCHCODENUM HSPDSCHMINCODEN accessibility due degraded with R4 UCELLHSDPA:CELLID=XXXXX,ALLOCCODEMODE=M Blocking UM (e.g from 5 to 4) Code Blocking lower PDSCH anual,HSPDSCHCODENUM=5; >0.5% Code When Cell Modify degrading having Low MOD DLHOCECODERESVS Code DLHOCECODERESVSF bitrate might accessibility due R4 UCELLCAC:CELLID=31890,DLHOCECODERESVSF=S F Blocking to lower SF (e.g from occur while HO Code Blocking F64; SF32 to SF 64) or RRC >0.5% When Cell Set lower SF on degrading having Low ULHOCERESVSF& Code ULHOCERESVSF& bitrate might ADD accessibility due R4 ULRRCCERESVSF Blocking ULRRCCERESVSF e.g occur while HO UCELLCAC:CELLID=31890,ULHOCERESVSF=SF32; RRC.Rej.ULCE.Co SF16->SF32 or RRC ng Purpose

Huawei Confidential

3G Huawei-FACH Details of Parameter Equip Catego Tech Parameter Name ment ry

Purpose

Applicable Condition

Cons

Severi ty

Command Sample (Optional) DEA UCELL: CELLID=30706; DEA USCCPCH: CELLID=30706, PHYCHID=9; RMV UFACHLOCH: CELLID=30706, TRCHID=4; RMV UFACHDYNTFS: CELLID=30706, TRCHID=4, RLCSIZE=168; RMV UFACHDYNTFS: CELLID=30706, TRCHID=5, RLCSIZE=360; RMV UFACH: CELLID=30706, TRCHID=4; RMV UFACH: CELLID=30706, TRCHID=5; RMV USCCPCH: CELLID=30706, PHYCHID=9;

Huawei 3G

SLOTFORMAT

Change FACH FACH SlotFormat to expand Congesti FACH Bandwidth on using Higher format ex : from D8 to D10

When Cell having High FACH Congestion

Huawei Confidential

R3

ADD USCCPCHBASIC: CELLID=30706, PHYCHID=9, SCCPCHOFFSET=100, SCRAMBCODE=0, SLOTFORMAT=D10, TFCIPRESENCE=EXISTS; ADD USCCPCHTFC: CELLID=30706, PHYCHID=9, CTFC=0; ADD USCCPCHTFC: CELLID=30706, PHYCHID=9, CTFC=1; ADD USCCPCHTFC: CELLID=30706, PHYCHID=9, CTFC=2; ADD USCCPCHTFC: CELLID=30706, PHYCHID=9, CTFC=3; ADD USCCPCHTFC: CELLID=30706, PHYCHID=9, CTFC=4; ADD USCCPCHTFC: CELLID=30706, PHYCHID=9, CTFC=5; ADD USCCPCHTFC: CELLID=30706, PHYCHID=9, CTFC=6; ADD UFACH: CELLID=30706, PHYCHID=9, TRCHID=4, RATEMATCHINGATTR=220, TOAWS=35, TOAWE=10, MAXFACHPOWER=30, CHCODINGTYPE=CONVOLUTIONAL; ADD UFACH: CELLID=30706, PHYCHID=9, TRCHID=5, RATEMATCHINGATTR=130, TOAWS=35, TOAWE=10, MAXCMCHPI=D13, MINCMCHPI=D0, SIGRBIND=FALSE, CHCODINGTYPE=TURBO; ADD UFACHDYNTFS:CELLID=30706, TRCHID=4, RLCSIZE=168, TFSNUMBER=D3, TBNUMBER1=0, TBNUMBER2=1, TBNUMBER3=2; ADD UFACHDYNTFS:CELLID=30706, TRCHID=5, RLCSIZE=360, TFSNUMBER=D3, TBNUMBER1=0, TBNUMBER2=1, TBNUMBER3=2; ADD UFACHLOCH: CELLID=30706, TRCHID=4; ACT USCCPCH: CELLID=30706, PHYCHID=9; ACT UCELL: CELLID=30706;

3G Huawei-HSDPA & HSUPA Details of Parameter Equipm Tech ent

Huawei

3G

Parameter Name

EAGCHCODENUM

Categor y

Severit y

Command Sample (Optional)

When HSUPA higher value will HSDPA Throughput is low, increase EAGCHCODENUM, waste downlink Throughpu suitable to optimize E.g from 1 to 2 codes t adhoc site such as VIP site

R4

ADD UCELLHSUPA:CELLID=31890,EAGCHCODENUM=2;

When HSDPA SET HSDPA Change NodeB Resource Throughput is low, MACHSPARA:LOCEL Throughpu allocation mode to Power suitable to optimize L=4,RSCALLOCM=P t Code Balance adhoc site such as VIP OWERCODE_BAL; site

R4

SET MACHSPARA:LOCELL=4,RSCALLOCM=POWERCODE_BAL;

Purpose

Huawei

3G

Huawei

HSUPA Increase UL Load Factor of 3G MAXTARGETULLOADFACTOR Throughpu HSUPA t

Huawei

3G

HSPAPOWER

Huawei

3G

SM

RSCALLOCM

HSDPA Throughpu t

Increase HSDPA Power

HSDPA Change MACHSPARA SM to Throughpu MAXCI t


Cons

Low Throughput in Cell Level

MOD UCELLHSUPA: CellId=1, MAXTARGETULLOADFACTOR=90;


MOD UCELLHSDPA: CellId=1, HspaPower=0;


SET MACHSPARA:LOCELL=1,SM=MAXCI;

Huawei Confidential

3G Huawei-Overall Block & Paging Details of Parameter Equip Catego Tech Parameter Name ment ry

Huawei 3G

Huawei 3G

Huawei 3G

Huawei 3G

Huawei 3G

Huawei 3G

Purpose


Cons

PS service setup When Cell success rate and Overall having Low the cell capacity 3G Enable loose CAC accessibility due for PS services CSRABCacOptSwitch Radio algorithm for CS RAB CS RAB will decrease in Blocking Congestion the case of cell >0.5% resource congestion Overall when many cells 3G is having High SHO Overhead HoASUtmr Increase HoASUtmr Radio Drop CS due to will be degraded Blocking ASU/SRB Reset when many cells Overall is having High Traffic 3G time being increase SSEARCHRAT Drop CS due to aggresively to Radio SSEARCHRAT >0 interference, 2G Blocking DCR >1% Increase SMS Threshold e.g from RNC High Paging SMPAGECTHD & SMPAGECTHD=85,SM deletion increase CPU Paging SMPAGERTHD PAGERTHD=75 to (VS.Paging.FC.Di Load SMPAGECTHD=95,SM sc.Num.CPUS) PAGERTHD=85; Cell with High DL Power Overall Blocking .To impact to 3G set DLLDRTRIGTHD to implement processor load if DLLDRTRIGTHD Radio lower value many cell need too many cells Blocking consider implemented Processor Load is low to Medium Cell with High DL Power Overall Blocking .To impact to 3G set DLLDRTRIGTHD to implement processor load if DLLDRRELTHD Radio lower value many cell need too many cells Blocking consider implemented Processor Load is low to Medium

Huawei Confidential

Severi ty


R4

MOD UCELLALGOSWITCH:CELLID=XXXXX,CSRABCACOPTS WITCH=ON;

R3

SET USTATETIMER:HOASUTMR=8000;

R4

ADD UCELLSELRESEL:CELLID=XXXXX,SSEARCHRAT=0;

R3

SET FCCPUTHD:BRDCLASS=XPU,SMPAGECTHD=95,SMPA GERTHD=85;

R4

ADD UCELLLDM:CELLID=31890,DLLDRTRIGTHD=80;

R4

ADD UCELLLDM:CELLID=31890,DLLDRTRIGTHD=80;

3G Huawei-RTWP Details of Parameter

Equip Catego Tech Parameter Name ment ry

Huawei 3G

BeHsupa2msTTIratet RTWP hd

Huawei 3G

CQIFbCk, CQIFbCkforSHO

RTWP

Huawei 3G

RLMAXDLPWR & RLMINDLPWR

RTWP

Huawei 3G

TrigRatioforUlRTWP

RTWP

Purpose


Cons

user perceive UL CE will degraded increase Threshold of Congestion, UL with higher selecting TTI 2ms for Power threshold to HO HSUPA Congestion from 10ms to >0.5% 2ms TTI Cell having high Reduce Uu Load & DCR CS with improve RTWP to High RTWP increase CS Traffic indication when cell is having High Drop CS due to Increase RL/No Reply & RLMAXDLPWR & Power Blocking DL Power Cong RLMINDLPWR (eg: 0/- is low (suggest will increase 150 to 20/-130) on cell with high power Capacity & DL Power cong <0.5%) Might impact to capacity since Increase Cell with High UE QOS will TrigRatiororUlRTWP RTWP and no trigger to TTI e.g 75 to 90 congestion issue 2ms in case of overload

Huawei Confidential

Severi ty


R3

SET UFRC:BEHSUPA2MSTTIRATETHS=D1024;

R4

MOD UCELLHSDPCCH:CELLID=XXXXX,CQIFBCK=D20,CQI FBCKFORSHO=D20

R4

MOD UCELLRLPWR:RLMAXDLPWR=20, RLMINDLPWR=-130

R4

MOD UCELLLDM:CELLID=XXXXX,TRIGRATIOFORULRTWP= 73;

3G Huawei-Power/Code Blocking Details of Parameter


Purpose

Huawei 3G

DLLDRFIRSTACTION

Power/C ode Blocking

Rearange LDR Sequence

Huawei 3G

DLLDRSECONDACTI ON



Huawei 3G DLLDRTHIRDACTION



Huawei 3G

DLLDRFOURTHACTIO N



Huawei 3G

DLLDRFIFTHACTION



Applicable Condition When Cell having Low accessibility due High DL Power Cong/Code Cong >0.5% When Cell having Low accessibility due High DL Power Cong/Code Cong >0.5% When Cell having Low accessibility due High DL Power Cong/Code Cong >0.5% When Cell having Low accessibility due High DL Power Cong/Code Cong >0.5% When Cell having Low accessibility due High DL Power Cong/Code Cong >0.5%

Cons

Severi ty


R4

MOD UCELLLDR: CELLID=1, DLLDRFIRSTACTION=CodeAdj;

R4

MOD UCELLLDR: CELLID=1, DLLDRSECONDACTION=InterFreqLDHO;

R4

MOD UCELLLDR: CELLID=1, DLLDRTHIRDACTION=BERateRed;

R4

MOD UCELLLDR: CELLID=1, DLLDRFOURTHACTION=CSInterRatShouldNotLDHO;

R4

MOD UCELLLDR: CELLID=1, DLLDRFIFTHACTION=PSInterRatShouldNotLDHO;

Huawei Confidential

3G Huawei-Power/Code Blocking Details of Parameter


Purpose

Huawei 3G

DLLDRFIRSTACTION



Huawei 3G

DLLDRSECONDACTI ON



Huawei 3G DLLDRTHIRDACTION



Huawei 3G

DLLDRFOURTHACTIO N



Huawei 3G

DLLDRFIFTHACTION



Applicable Condition When Cell having Low accessibility due High DL Power Cong/Code Cong >0.5% When Cell having Low accessibility due High DL Power Cong/Code Cong >0.5% When Cell having Low accessibility due High DL Power Cong/Code Cong >0.5% When Cell having Low accessibility due High DL Power Cong/Code Cong >0.5% When Cell having Low accessibility due High DL Power Cong/Code Cong >0.5%

Cons

Severi ty


R4

MOD UCELLLDR: CELLID=1, DLLDRFIRSTACTION=CodeAdj;

R4

MOD UCELLLDR: CELLID=1, DLLDRSECONDACTION=InterFreqLDHO;

R4

MOD UCELLLDR: CELLID=1, DLLDRTHIRDACTION=BERateRed;

R4

MOD UCELLLDR: CELLID=1, DLLDRFOURTHACTION=CSInterRatShouldNotLDHO;

R4

MOD UCELLLDR: CELLID=1, DLLDRFIFTHACTION=PSInterRatShouldNotLDHO;

Huawei Confidential

3G Huawei-Power Blocking Details of Parameter Equip Catego Tech Parameter Name ment ry

Purpose


Cons

Noise will When Cell increase without having Low admission Disable uplink call NBMULCACALGOSEL Power accessibility due control Huawei 3G admission control SWITCH Blocking UL Power Algorithm, might algorithm Congestion increase >0.5% RTWP/degrade EcNo If value is larger, When Cell the cell capacity having Low for uplink Increase accessibility due ULTOTALEQUSERNU Power equivalent user Huawei 3G ULTOTALEQUSERNUM UL- Power M Blocking number (ENU) is (e.g from 160 to 180) Blocking for large and more Existing value is users will be less than 200 admitted Cell with High UL Power Cong (>0.5%)after Algorithm_OFF . impact to increase UlOlcTrigThd Power To implement processor load if Huawei 3G UlOlcTrigThd to 100 (while still in Blocking many cell need too many cells ALGORITHM_OFF) consider implemented Processor Load is low to Medium (<70%) When Cell decrease RLPower : having Low Fail due Uu No RLMAXDLPWR & Power RLMAXDLPWR,RLMIN Huawei 3G accessibility due reply/RL fail will RLMINDLPWR Blocking DLPWR (eg. 50,-100 High DL Power increase to 0,-150 ) Cong >0.5% When Cell having Low Noise will Power Increase DL Power Huawei 3G DLCONVAMRTHD accessibility due increase, might Blocking threshold for AMR High DL Power increase RTWP Huawei Confidential Cong >0.5%

Severi ty


R4

MOD UCELLALGOSWITCH:CELLID=xxxxx,NBMULCACALGO SELSWITCH=ALGORITHM_OFF

R4

MOD UCELLCAC:CELLID=XXXXX,ULTOTALEQUSERNUM=1 80,

R4

ADD UCELLLDM:CELLID=31890,ULOLCTRIGTHD=100;

R4

MOD UCELLRLPWR:RLMAXDLPWR=0, RLMINDLPWR=-150

R4

MOD UCELLCAC: CELLID=1, DLCONVAMRTHD=90;

3G Huawei-Power Blocking Details of Parameter


Huawei 3G

DLCONVNONAMRTH Power D Blocking

Huawei 3G

DLOTHERTHD

Power Blocking

Huawei 3G

DLHOTHD

Power Blocking

Huawei 3G

DLCELLTOTALTHD

Power Blocking

Purpose


When Cell having Low accessibility due High DL Power Cong >0.5% When Cell having Low Increase DL Power accessibility due threshold for Other High DL Power Cong >0.5% When Cell having Low Increase DL Power accessibility due threshold for HO High DL Power Cong >0.5% When Cell having Low Increase DL Power accessibility due Total threshold High DL Power Cong >0.5% Increase DL Power threshold for NonAMR

Cons

Severi ty


Noise will increase, might increase RTWP

R4

MOD UCELLCAC: CELLID=1, DLCONVNONAMRTHD=90;


R4

MOD UCELLCAC: CELLID=1, DLOTHERTHD=80;


R4

MOD UCELLCAC: CELLID=1, DLHOTHD=95;


R4

MOD UCELLCAC: CELLID=1, DLCELLTOTALTHD=95;

Huawei Confidential

3G Nokia Performance Counter for Congestion Vendo Tec Resource r h Type NSN

3G

UL CE

NSN

3G

DL CE

NSN

3G

UL Power

NSN

3G

DL Power

NSN

3G

IuB

NSN

3G

Code

Step of Action

Congestion Counter rrc_conn_stp_fail_bts+rab_stp_fail_cs_voice_bts+rab_stp_fail_ps_strea_bts+rab_stp_fail_ps_inter _frozbs+rab_stp_fail_ps_backg_frozbs+setup_fail_bts_hs_dsch_str_1+setup_fail_bts_hs_dsch_bgr rrc_conn_stp_fail_bts+rab_stp_fail_cs_voice_bts+rab_stp_fail_ps_strea_bts+rab_stp_fail_ps_inter _frozbs+rab_stp_fail_ps_backg_frozbs+setup_fail_bts_hs_dsch_str_1+setup_fail_bts_hs_dsch_bgr rrc_conn_stp_fail_ac+rab_stp_fail_cs_voice_ac+rab_stp_fail_ps_strea_ac +rab_stp_fail_ps_inter_ac+rab_stp_fail_ps_backg_ac rrc_conn_stp_fail_ac+rab_stp_fail_cs_voice_ac+rab_stp_fail_ps_strea_ac +rab_stp_fail_ps_inter_ac+rab_stp_fail_ps_backg_ac rrc_conn_stp_fail_iub_aal2+rab_stp_fail_cs_v_iub_aal2+setup_fail_iub_hs_total_str_1+setup_fail_ iub_hs_total_int+setup_fail_iub_hs_total_bgr rrc_conn_stp_fail_ac+rab_stp_fail_cs_voice_ac+rab_stp_fail_ps_strea_ac +rab_stp_fail_ps_inter_ac+rab_stp_fail_ps_backg_ac

Case

1st Action Check trending of CE CE Blocking/CE High Util Availability Physical Audit (involving Iub Blocking/Iub High Util analysis) DL- Power Blocking/DL - Physical Audit (involving Power High Util analysis) Physical Audit (involving UL- Power Blocking analysis) Physical Audit (involving Code Blocking analysis)

2nd Action Physical Audit (involving TP analysis) TP

IuB VC Split

TP Activate 40W, maintain existing PCPICH setting TP Increase PrxTarget, adjust DeltaPrxMaxUp,DeltaPrxMaxDown TP Decrease used MaxBitrateDLPSNRT (128 kbits/s, 64 kbits/s)

Huawei Confidential

3rd Action CE license and/or board upgrade Iub BW upgrade Increase PtxTarget, PtxMaxHSDPA

2G Huawei Performance Counter for Congestion Vendo r Tech Huawei 2G Huawei 2G Huawei

2G

Huawei

2G

Resource Type Congestion Counter SDCCH K3001:Failed SDCCH Seizures due to Busy SDCCH TCH K3011A:Failed TCH Seizures due to Busy TCH (Traffic Channel) [A9003:Number of Failed Uplink GPRS TBF Establishments due to No Channel] +[A9203:Number of Failed Uplink EGPRS TBF Establishments due to No Channel]+ TBF [A9103:Number of Failed Downlink GPRS TBF Establishments due to No Channel] +[A9303:Number of Failed Downlink EGPRS TBF Establishments due to No Channel]} [R9394:Number of PDCH Application Failures due to no Convertable TCHs]+[R9395:Number of PDCH Application failures For CELL PDCH Ratio Thresh]+[R9346:Number of Dynamic PDCH PDCH Requests Without Application Attempts Because the Number of Activated PDCHs Reaches Board Specification]+[R9347:Number of Dynamic PDCH Requests Without Application Attempts Because No Abis Timeslot is Available for Use] R9347:Number of Dynamic PDCH Requests Without Application Attempts Because No Abis Abis Timeslot is Available for Use

Huaweiof2G Step Action Case

1st Action Check trending of CE CE Blocking/CE High Util Availability Physical Audit (involving Iub Blocking/Iub High Util analysis) DL- Power Blocking/DL - Physical Audit (involving Power High Util analysis) Physical Audit (involving UL- Power Blocking analysis) Physical Audit (involving Code Blocking analysis)

2nd Action Physical Audit (involving TP analysis) TP

IuB VC Split

TP Activate 40W, maintain existing PCPICH setting TP Increase PrxTarget, adjust DeltaPrxMaxUp,DeltaPrxMaxDown TP Decrease used MaxBitrateDLPSNRT (128 kbits/s, 64 kbits/s)

Huawei Confidential

3rd Action CE license and/or board upgrade Iub BW upgrade Increase PtxTarget, PtxMaxHSDPA

2G Huawei- TCH & SDCCH Blocking Details of Parameter

Equi Tec pme h nt

Parameter Name

Categ ory

Purpose

SDCC Huaw H Reduce SDCCH 2G IDLESDTHRES ei Blocki blocking ng TCH Huaw Reduce SDCCH 2G TCHBUSYTHRES Blocki ei & TCH blocking ng TCH Huaw AMRTCHHPRIOR Reduce SDCCH 2G Blocki ei ALLOW & TCH blocking ng TCH Huaw AMRTCHHPRIOR Reduce SDCCH 2G Blocki ei LOAD & TCH blocking ng

Applicable Condition SDCCH blocking & Non TCH Blocking TCH blocking & SDCCH, TCH blocking TCH blocking & SDCCH, TCH blocking TCH blocking & SDCCH, TCH blocking

Cons

Sev erity


TCH utilization

SET R4 GCELLCHMGBASIC:IDTYPE=BYID,CELLID =1,IDLESDTHRES=8;

quality

SET R4 GCELLCHMGAD:IDTYPE=BYID,CELLID=1 ,TCHBUSYTHRES=2;

quality

quality

Huawei Confidential

SET GCELLCHMGAD:IDTYPE=BYID,CELLID=1 R4 ,AMRTCHHPRIORALLOW=ON,AMRTCHHP RIORLOAD=1; SET GCELLCHMGAD:IDTYPE=BYID,CELLID=1 R4 ,AMRTCHHPRIORALLOW=ON,AMRTCHHP RIORLOAD=1;

2G Huawei- PDSCH Blocking Details of Parameter Equi Tec pme h nt

Parameter Name

Categ ory

PDCH Huaw 2G MAXPDCHRATE Blocki ei ng

Huaw 2G ei

PDCHUPLEV

PDCH Blocki ng

PDCH Huaw 2G PDCHDWNLEV Blocki ei ng

PDCH Huaw UPDYNCHNTRA 2G Blocki ei NLEV ng

PDCH Huaw DWNDYNCHNTR 2G Blocki ei ANLEV ng

PDCH Huaw PSServiceBusyT 2G Blocki ei hreshold

Purpose


Cons

PDCH blocking due Reduce PDCH to no Throughput blocking Convertable TCHs PDCH blocking due Reduce TBF to CELL Throughput congestion PDCH Ratio Thresh PDCH blocking due Reduce TBF to CELL Throughput congestion PDCH Ratio Thresh PDCH blocking due Reduce TBF to no Throughput congestion Convertable TCHs PDCH blocking due Reduce TBF to no Throughput congestion Convertable TCHs PDCH blocking due Reduce TBF Huawei Confidential to no Throughput congestion

Sev erity


R4

SET GCELLPSCHM: IDTYPE=BYID, CELLID=0, MAXPDCHRATE=80;

SET R4 GCELLPSCHM:IDTYPE=BYID,CELLID=1,P DCHUPLEV=70;

SET R4 GCELLPSCHM:IDTYPE=BYID,CELLID=1,P DCHDWNLEV=160;

SET R4 GCELLPSCHM:IDTYPE=BYID,CELLID=1,U PDYNCHNTRANLEV=70;

SET R4 GCELLPSCHM:IDTYPE=BYID,CELLID=1,D WNDYNCHNTRANLEV=80;

SET R4 GCELLPSCHM:IDTYPE=BYID,CELLID=1,P

2G Nokia Performance Counter for Congestion Vend Tec Resource Congestion Counter or h Type Nokia 2G SDCCH 100 * ([SDCCH_BUSY_ATT] - [TCH_SEIZ_DUE_SDCCH_CON])/[SDCCH_SEIZ_ATT]) 100 * ([TCH_REQUESTS_CALL_ATTEMPT] - [SUCC_TCH_SEIZ_CALL_ATTEMPT])/ Nokia 2G TCH [TCH_REQUESTS_CALL_ATTEMPT] 100 * ([NO_RADIO_RES_AVA_DL_TBF] + [NO_RADIO_RES_AVA_UL_TBF])/([NBR_OF_DL_TBF] + Nokia 2G PDCH [NBR_OF_UL_TBF]) Nokia Type 2G Abis dl_tbfs_with_inadeq_edap_res + ul_tbfs_without_edap_res Blocking Analyze Action 1.Reduce CRH (Cell Reselect Hysteresis = check channel availability rate HYS) if site in the LAC border area and increase (TCH Availability) & Transmission CRH for the NR cell in another LAC SDCCH blocking & Non TCH performance, any intermittent or 2.Reduce CRO (Cell Resellect Offset =REO) or Blocking not (Alarm). If all Ok then do the make negative value by set Penalty Time (PET) to 640s action coloum 3.Add fix SDCCCH channel

Step of Action

CS Blocking & Non TCH Blocking & Non SDCCH PS blocking blocking

check channel availability rate (TCH Availability) & Transmission performance, any intermittent or not (Alarm). If all Ok then do the action coloum

check channel availability rate (TCH Availability) & Transmission TCH Blocking & SDCCH blocking performance, any intermittent or not (Alarm). If all Ok then do the action coloum check channel availability rate (TCH Availability) & Transmission performance, any intermittent or PS Blocking, TCH not Blocking not (Alarm). If all Ok then do the action coloum PS Blocking & Non Huawei Confidential CS blocking check channel availability rate (TCH Availability) & Transmission

1. increase (btsSpLoadDepTchRateLower = FRL) & (btsSpLoadDepTchRateUpper=FRU) maximum value is 90 2. Increase (amrSegLoadDepTchRateLower = AFRL) & (amrSegLoadDepTchRateUpper = AFRU) 3. Change SDCCH &PDCH to TCH channel 4. Reduce hoMarginPbgt from blocking cell and increase hoMarginPbgt to NR cell that is no blocking

1. same as upper reduce SDCCH & TCH blocking 2. Change PDCH to TCH if PDCH not blocking or less 3.upgrade TRX 1.Add Dedicated GPRS Capactity (CDED) by increase the number 2. Add Default GPRS Capacity (CDEF) byt increase the number (Dynamic)

2G Nokia – TCH & PDCH Blocking Details of Parameter Equipm Tech ent

Nokia Nokia Nokia Nokia Nokia Nokia Nokia Nokia Nokia

Parameter Name

TCH Blocking TCH 2G Blocking TCH 2G Blocking TCH 2G Blocking TCH 2G hoMarginPbgt Blocking dedicatedGPRSCapacity PDCH 2G (CDED) Blocking defaultGPRSCapacity PDCH 2G (CDEF) Blocking egprsInitMcsAckMode PDCH 2G (MCA) Blocking egprsInitMcsUnAckMod PDCH 2G e (MCU) Blocking 2G

btsSpLoadDepTchRateL ower (FRL) btsSpLoadDepTchRateU pper (FRU) amrSegLoadDepTchRat eLower (AFRL) amrSegLoadDepTchRat eUpper (AFRU)

Categor y

Purpose

Reduce TCH Blocking Reduce TCH Blocking Reduce TCH Blocking Reduce TCH Blocking Reduce TCH Blocking Reduce PDCH Blocking Reduce PDCH Blocking Reduce PDCH Blocking Reduce PDCH Blocking

Huawei Confidential


Cons

TCH Blocking Rate > 1% TCH Blocking Rate > 1% TCH Blocking Rate > 1% TCH Blocking Rate > 1% TCH Blocking Rate > 1% PDCH Blocking Rate > 1% PDCH Blocking Rate > 1% PDCH Blocking Rate > 1% PDCH Blocking Rate > 1%

Degraded voice quality and SQI Degraded voice quality and SQI Degraded voice quality and SQI Degraded voice quality and SQI Degraded voice quality and SQI Possible increase TCH Blocking Possible increase TCH Blocking Possible increase TCH Blocking Possible increase TCH Blocking

Severit y

R3 R3 R3 R3 R3 R3 R3 R3 R3

2G Siemens Performance Counter for Congestion Vendor Siemens

Tech 2G

Resource Type Congestion Counter ATSDCMBS / NATTSDPE SDCCH

Siemens

2G

TCH

Siemens Siemens

2G 2G

PDCH Abis

(ATCHSMBS_1 + ATCHSMBS_2) /(ATTCHSEI_1 +ATTCHSEI_2) --> excluding A-bis blocking (ATCHSMBS_1 + ATCHSMBS_2 + ATCHSMBS_3 + ATCHSMBS_4) /(ATTCHSEI_1 +ATTCHSEI_2) --> including A-bis blocking REJPDASS_1..37 / (NUACATCL_3 + NUACATCL_6) ABISPSUP[7]/(ABISPSUP[6] + ABISPSUP[7])

Step of Action Type

CS Blocking & Non PS blocking

PS Blocking & Non CS blocking

First step check channel availability rate & Abis transmission SDCCH blocking & availiblity rate,any intermittent rise TT (cause maybe Non TCH Blocking due to Abis problem) check channel availability rate & Abis transmission TCH Blocking & Non availiblity rate,any intermittent rise TT (cause maybe SDCCH blocking due to Abis problem) check channel availability rate & Abis transmission TCH Blocking & availiblity rate,any intermittent rise TT (cause maybe SDCCH blocking due to Abis problem) check channel availability rate & Abis transmission PS Blocking -> due availiblity rate,any intermittent rise TT (cause maybe to no PDCH resource due to Abis problem) check channel availability rate & Abis transmission PS Blocking -> due availiblity rate,any intermittent rise TT (cause maybe to PDT resource due to Abis problem) PS Blocking-> no Abis Timeslot is Available

CS Blocking & PS blocking 2G/3G

Blocking

check channel availability rate & Abis transmission availiblity rate,any intermittent rise TT (cause maybe due to Abis IP capacity problem) Huawei Confidential

Second step 1. Reduce SDCCHCONGTH (70 --> 50/40) 2. Increase CELLRESH (LAC border area) 3. Change TCH_HLF timeslot to TCHSD timeslot 4. Add fix SDCCH timeslot 4. Reduce RACHBT (109 --> 106) 1. Reduce HRACCT1 and HRACTAMRACT1 2. Reduce GPDPDTCH 3. Reduce GMANPRESPRM & EMANPRESPRM 4. Increase SDCCHCONGTH (max: 100) 1. Same as upper reduce SDCCH & TCH blocking 2. Increase PWRRED to 2 3. Upgrade TRX 1. Increase GMANPRESPRM & EMANPRESPRM 2. Increase GPDPDTCH

Rebalancing PRPTPGID

1. Change GASTRABISTH to 60-70-40-50 2. Add SUBTSLB on A-bis 1.Upgrade TRX or Abis transmission capacity 2.If upgrade limit,change PDCH to TCH (CS high priority) 3.Load sharing to 3G, FDD Qmin (7-->6[max -14db]) & SSEARCHRAT (2-->0) 1.Inter-RAT Cell Reselection Enable(IRAT reseclection) 2.Qsearch C Initial(seach 3G in Idle mode)

2G Siemens – SDCCH, TCH, PDCH, Abis, Blocking & PCU Load Details of Parameter Equipm Tech ent Siemens 2G Siemens 2G Siemens 2G

Siemens 2G

Siemens 2G

Siemens 2G

Siemens 2G

Siemens 2G

Categor Applicable Purpose y Condition SDCCH Reduce SDCCH SDCCH Utilization SDCCHCONGTH Blocking Blocking > 80% HRACTT1, TCH TCH Blocking Rate Reduce TCH Blocking HRAMRHRACT1 Blocking > 1% Increase/decrease PDCH dynamic PDCH PDCH Blocking GPDPDTCHA Blocking allocation to reduce Rate > 1% PDCH Blocking Reduce A-bis pool Abis Abis Pool Loss GASTRABISTH blocking in order to Blocking Rate > 0.5% improve PDASR Reduce SDCCH CHTYPE=SDCCH (from SDCCH Blocking with change SDCCH Blocking TCH) Blocking Channel Type from TCH > 0.5% to SDCCH Reduce TCH Blocking TCH Blocking > CHTYPE=TCH (from SDCCH with change Channel 1% AND SDCCH SDCCH) Blocking Type from SDCCH to Utilization < 50% TCH Resolve AGCH and PCH CHTYPE=CCCH (from SDCCH overload with change PCH load + AGCH TCH) Blocking Channel Type from TCH load > 80% to CCCH PCU Load > 90% To reduce initial Coding and PDCH INIMCSDL PCU Load Scheme Blocking Rate > 1% Parameter Name

Huawei Confidential

Cons Possible increase TCH Blocking Degraded voice quality and SQI

Severi ty R3 R3

Possible increase TCH Blocking

R3

Low throughput

R3


R3

Possible increase SDCCH Blocking

R3


R2

Low throughput

R3

Supporting Document

Congestion Guideline

For other Radio Optimization guide, please spare time to download & read through below NIA FTPDOCUMENTS/05. link : /00_G. SME DEPARTMENT/00_C. TECHNICAL GUIDELINE & DOCUMENTS

!!! Please use document as internal consume, not to be share to inappropriate subject

Huawei Confidential

Congestion or Low Throughput Mitigation Strategy

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