Congestion or Low Throughput Mitigation Strategy
May 4, 2021 | Author: Anonymous | Category: N/A
Short Description
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Description
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
Applicable Condition
Cons
Low Throughput in Cell Level
MOD UCELLHSUPA: CellId=1, MAXTARGETULLOADFACTOR=90;
Low Throughput in Cell Level
MOD UCELLHSDPA: CellId=1, HspaPower=0;
Low Throughput in Cell Level
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
Applicable Condition
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
Command Sample (Optional)
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
Applicable Condition
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% 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
Command Sample (Optional)
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
Equip Catego Tech Parameter Name ment ry
Purpose
Huawei 3G
DLLDRFIRSTACTION
Power/C ode Blocking
Rearange LDR Sequence
Huawei 3G
DLLDRSECONDACTI ON
Power/C ode Blocking
Rearange LDR Sequence
Huawei 3G DLLDRTHIRDACTION
Power/C ode Blocking
Rearange LDR Sequence
Huawei 3G
DLLDRFOURTHACTIO N
Power/C ode Blocking
Rearange LDR Sequence
Huawei 3G
DLLDRFIFTHACTION
Power/C ode Blocking
Rearange LDR Sequence
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
Command Sample (Optional)
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
Applicable Condition
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 (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
Command Sample (Optional)
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
Equip Catego Tech Parameter Name ment ry
Huawei 3G
DLCONVNONAMRTH Power D Blocking
Huawei 3G
DLOTHERTHD
Power Blocking
Huawei 3G
DLHOTHD
Power Blocking
Huawei 3G
DLCELLTOTALTHD
Power Blocking
Purpose
Applicable Condition
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
Command Sample (Optional)
Noise will increase, might increase RTWP
R4
MOD UCELLCAC: CELLID=1, DLCONVNONAMRTHD=90;
Noise will increase, might increase RTWP
R4
MOD UCELLCAC: CELLID=1, DLOTHERTHD=80;
Noise will increase, might increase RTWP
R4
MOD UCELLCAC: CELLID=1, DLHOTHD=95;
Noise will increase, might increase RTWP
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
Command Sample (Optional)
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
Applicable Condition
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
Command Sample (Optional)
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
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Applicable Condition
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
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Cons Possible increase TCH Blocking Degraded voice quality and SQI
Severi ty R3 R3
Possible increase TCH Blocking
R3
Low throughput
R3
Possible increase TCH Blocking
R3
Possible increase SDCCH Blocking
R3
Possible increase TCH Blocking
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
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