Huawei Confidential
Title : Dynamic CE & CE Overbooking Trial
Object : RNC Menara Mulia 2
By : Strategic Optimization Team
Optimization Strategy
How to Solve Different Type of
Congestion/Low Throughput in
Cell Level
Congestion/Low Throughput Mitigation
Strategy
3G Huawei
•
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
3G Nokia
•
CE Blocking/CE
High Utilization
•
Iub Blocking/Iub
High Utilization
•
DL- Power
Blocking/DL -
Power High
Utilization
•
UL- Power
Blocking
•
Code Blocking
2G Huawei
•
CS Blocking &
Non PS blocking
•
PS Blocking &
Non CS blocking
•
CS Blocking & PS
blocking
•
2G/3G reselection
( traffic share)
2G Nokia
•
CS Blocking &
Non PS blocking
•
PS Blocking &
Non CS blocking
2G Siemens
•
CS Blocking &
Non PS blocking
•
PS Blocking &
Non CS blocking
•
CS Blocking & PS
blocking
•
2G/3G reselection
( traffic share)
Huawei Confidential
3G Huawei
Performance Counter for Congestion
Vendo
r
Tech
Resource
Type
Congestion Counter
Huawei 3G
UL CE
VS.RRC.Rej.ULCE.Cong+VS.RAB.FailEstabCS.ULCE.Cong+VS.RAB.FailEstabPS.ULCE.Cong
Huawei 3G
DL CE
VS.RRC.Rej.DLCE.Cong+VS.RAB.FailEstabCS.DLCE.Cong+VS.RAB.FailEstabPS.DLCE.Cong
Huawei 3G
UL Power
VS.RRC.Rej.ULPower.Cong+VS.RAB.FailEstabCS.ULPower.Cong+VS.RAB.FailEstabPS.ULPower
.Cong
Huawei 3G
DL Power
VS.RRC.Rej.DLPower.Cong+VS.RAB.FailEstabCS.DLPower.Cong+VS.RAB.FailEstabPS.DLPower
.Cong
Huawei 3G
UL IuB
VS.RRC.Rej.ULIUBBand.Cong+VS.RAB.FailEstabCS.ULIUBBand.Cong+VS.RAB.FailEstabPS.ULI
UBBand.Cong
Huawei 3G
DL IuB
VS.RRC.Rej.DLIUBBand.Cong+VS.RAB.FailEstabCS.DLIUBBand.Cong+VS.RAB.FailEstabPS.DLI
UBBand.Cong
Huawei 3G
Code
VS.RRC.Rej.Code.Cong+VS.RAB.FailEstabCS.Code.Cong+VS.RAB.FailEstabPS.Code.Cong
Case
1st Action
2nd Action
3rd Action
4th Action
CE Blocking/CE High
Util
Verify CE license and CE
board capability.
Commands involved : DSP
LICENSE, DSP BBPTC
Physical Audit (involving TP
analysis)
CE license and/or board
upgrade
Modify LDR threshold. Sets
involved : UCELLLDM,
UCELLLDR
Iub Blocking/Iub High
Util
Verify Iub BW setting in
Node-B and in RNC. Sets
involved : IPPATH,
IPLOGICPORT
Physical Audit (involving TP
analysis)
Iub BW upgrade
Modify FTI to reduce Active
Factor. Sets involved :
TRMFACTOR, ADJMAP,
ADJNODE
DL- Power Blocking/DL -
Power High Util
Physical Audit (involving TP
analysis)
Activate 40W, maintain
existing PCPICH setting
Modify DL CAC
parameters set to higher
value. Parameters
involved :
DLCONVAMRTHD,
DLCONVNONAMRTHD,
DLOTHERTHD,
DLHOTHD,
DLCELLTOTALTHD
UL- Power Blocking
Physical Audit (involving TP
analysis)
Increase
ULTOTALEQUSERNUM (e.g
from 160 to 180)
Turn-off
NBMULCACALGOSELSWI
TCH (set to
ALGORITHM_OFF)
Code Blocking
Physical Audit (involving TP
analysis)
Modify
DLHOCECODERESVSF to
lower SF (e.g from SF32 to
SF 64)
Reduce
HSPDSCHMINCODENUM
(e.g from 5 to 4)
Reduce HSSCCHCODENUM
(e.g from 4 to 3)
Step of Action
3G Huawei-CE, SPU &
Code
Details of Parameter
Equipment Tech Parameter Name Category Purpose Applicable Condition Cons Severity Command Sample (Optional)
Huawei 3G SUPA_TTI_2MS_SWITMAPSWITCH_MAP_H CH
CE
Blocking Disable 2ms TTI for HSUPA service
When Cell having Low accessibility due UL Power Congestion >0.5% HSUPA Throughput will degraded with only 10 ms TTI R4 UCORRMALGOSWITCH:MAPSWITCH=MAP_HSUPA_TTSET I_2MS_SWITCH-0;
Huawei 3G N300 Load SPU
reduce Maximum number of retransmissions of the RRC CONNECTION REQUEST message.E.g from 3 to 1
High SPU Load due traffic increase >70% lower value UE experiences difficulty accessing the network when the Uu interface quality is poor or the system is overloaded R4 SET UIDLEMODETIMER:N300=1;
Huawei 3G PsInactTmrForPreFstDrm Load SPU
increase CELL-PCH inactivity timer for UEs enabled with the
Fast Dormancy feature
High SPU Load due traffic increase >70%
PS Total Traffic will decrease &
RRC SR will statistically degrade due less
attempt
R3 UPSINACTTIMER:PSINACTTMRFORPREFSTDRM=900,SET
Huawei 3G HSPDSCHCODENUMBlocking Code HSPDSCHMINCODENReduce UM (e.g from 5 to 4) When Cell having Low accessibility due Code Blocking >0.5% HSDPA Throughput will degraded with lower PDSCH Code R4 UCELLHSDPA:CELLID=XXXXX,ALLOCCODEMODE=MMOD anual,HSPDSCHCODENUM=5; Huawei 3G DLHOCECODERESVS F Code Blocking Modify DLHOCECODERESVSF
to lower SF (e.g from SF32 to SF 64) When Cell having Low accessibility due Code Blocking >0.5% degrading bitrate might occur while HO or RRC R4 UCELLCAC:CELLID=31890,DLHOCECODERESVSF=SMOD F64; ULHOCERESVSF& Code Set lower SF on ULHOCERESVSF& When Cell
having Low degrading
Huawei Confidential
3G Huawei-FACH
Details of Parameter
Equipment Tech Parameter Name Category Purpose Applicable Condition Cons Severity Command Sample (Optional)
Huawei 3G SLOTFORMAT CongestiFACH on
Change FACH SlotFormat to expand
FACH Bandwidth using Higher format ex : from D8 to D10 When Cell having High FACH Congestion R3
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; 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
ent Tech Parameter Name
Categor
y Purpose
Applicable
Condition Cons
Severit
y Command Sample (Optional)
Huawei 3G EAGCHCODENUM ThroughpuHSDPA t increase EAGCHCODENUM, E.g from 1 to 2 When HSUPA Throughput is low, suitable to optimize adhoc site such as VIP
site
higher value will waste downlink
codes R4 ADD UCELLHSUPA:CELLID=31890,EAGCHCODENUM=2; Huawei 3G RSCALLOCM ThroughpuHSDPA
t
Change NodeB Resource allocation mode to Power
Code Balance
When HSDPA Throughput is low, suitable to optimize adhoc site such as VIP
site SET MACHSPARA:LOCEL L=4,RSCALLOCM=P OWERCODE_BAL; R4 SET MACHSPARA:LOCELL=4,RSCALLOCM=POWERCODE_BAL; Huawei 3G MAXTARGETULLOADFACTOR HSUPA Throughpu t
Increase UL Load Factor of
HSUPA Low Throughput in Cell Level
MOD UCELLHSUPA: CellId=1, MAXTARGETULLOADFACTOR=90; Huawei 3G HSPAPOWER ThroughpuHSDPA
t Increase HSDPA Power
Low Throughput in
Cell Level MOD UCELLHSDPA: CellId=1, HspaPower=0; Huawei 3G SM ThroughpuHSDPA
t
Change MACHSPARA SM to MAXCI
Low Throughput in
Huawei Confidential
3G Huawei-Overall Block &
Paging
Details of Parameter
Equipment Tech Parameter Name
Catego
ry Purpose
Applicable
Condition Cons
Severi
ty Command Sample (Optional)
Huawei 3G CSRABCacOptSwitch
Overall 3G Radio Blocking
Enable loose CAC algorithm for CS RAB
When Cell having Low accessibility due CS RAB Congestion >0.5% PS service setup success rate and the cell capacity for PS services will decrease in the case of cell
resource congestion R4 UCELLALGOSWITCH:CELLID=XXXXX,CSRABCACOPTSMOD WITCH=ON; Huawei 3G HoASUtmr Overall 3G Radio Blocking Increase HoASUtmr
when many cells is having High Drop CS due to ASU/SRB Reset
SHO Overhead
will be degraded R3 SET USTATETIMER:HOASUTMR=8000;
Huawei 3G SSEARCHRAT
Overall 3G Radio Blocking
time being increase SSEARCHRAT >0
when many cells is having High Drop CS due to interference, DCR >1% Traffic aggresively to 2G R4 ADD UCELLSELRESEL:CELLID=XXXXX,SSEARCHRAT=0;
Huawei 3G SMPAGECTHD & SMPAGERTHD Paging
Increase SMS Threshold e.g from SMPAGECTHD=85,SM PAGERTHD=75 to SMPAGECTHD=95,SM PAGERTHD=85; RNC High Paging deletion (VS.Paging.FC.Di sc.Num.CPUS) increase CPU Load R3 SET FCCPUTHD:BRDCLASS=XPU,SMPAGECTHD=95,SMPA GERTHD=85; Huawei 3G DLLDRTRIGTHD Overall 3G Radio Blocking set DLLDRTRIGTHD to lower value
Cell with High DL Power Blocking .To
implement many cell need
consider Processor Load is low to Medium
impact to processor load if
too many cells implemented R4 ADD UCELLLDM:CELLID=31890,DLLDRTRIGTHD=80; Huawei 3G DLLDRRELTHD Overall 3G Radio Blocking set DLLDRTRIGTHD to lower value
Cell with High DL Power Blocking .To
implement many cell need
consider Processor Load is low to Medium
impact to processor load if
too many cells implemented
3G Huawei-RTWP
Details of Parameter
Equip
ment Tech Parameter Name Category Purpose Applicable Condition Cons Severity Command Sample (Optional)
Huawei 3G BeHsupa2msTTIratethd RTWP increase Threshold of selecting TTI 2ms for HSUPA UL CE Congestion, UL Power Congestion >0.5% user perceive will degraded with higher threshold to HO from 10ms to 2ms TTI R3 SET UFRC:BEHSUPA2MSTTIRATETHS=D1024;
Huawei 3G CQIFbCkforSHOCQIFbCk, RTWP Reduce Uu Load & improve RTWP to increase CS Traffic
Cell having high DCR CS with
High RTWP indication
R4 UCELLHSDPCCH:CELLID=XXXXX,CQIFBCK=D20,CQIMOD FBCKFORSHO=D20
Huawei 3G RLMAXDLPWR & RLMINDLPWR RTWP
Increase RLMAXDLPWR & RLMINDLPWR (eg: 0/-150 to 20/-130) when cell is having High Drop CS due to
RL/No Reply & Power Blocking is low (suggest on cell with high
power Capacity & DL Power cong <0.5%)
DL Power Cong
will increase R4 MOD UCELLRLPWR:RLMAXDLPWR=20, RLMINDLPWR=-130
Huawei 3G TrigRatioforUlRTWP RTWP
Increase TrigRatiororUlRTWP
e.g 75 to 90
Cell with High RTWP and no congestion issue Might impact to capacity since UE QOS will trigger to TTI 2ms in case of overload R4 MOD UCELLLDM:CELLID=XXXXX,TRIGRATIOFORULRTWP= 73;
Huawei Confidential
3G Huawei-Power/Code Blocking
Details of Parameter
Equip
ment Tech Parameter Name Category Purpose Applicable Condition Cons Severity Command Sample (Optional)
Huawei 3G DLLDRFIRSTACTION Power/Code Blocking Rearange LDR Sequence When Cell having Low accessibility due High DL Power Cong/Code Cong >0.5%
R4 DLLDRFIRSTACTION=CodeAdj;MOD UCELLLDR: CELLID=1,
Huawei 3G DLLDRSECONDACTION Power/Code Blocking Rearange LDR Sequence When Cell having Low accessibility due High DL Power Cong/Code Cong >0.5%
R4 DLLDRSECONDACTION=InterFreqLDHO;MOD UCELLLDR: CELLID=1,
Huawei 3G DLLDRTHIRDACTIONPower/Code Blocking Rearange LDR Sequence When Cell having Low accessibility due High DL Power Cong/Code Cong >0.5%
R4 MOD UCELLLDR: CELLID=1, DLLDRTHIRDACTION=BERateRed;
Huawei 3G DLLDRFOURTHACTION Power/Code Blocking Rearange LDR Sequence When Cell having Low accessibility due High DL Power Cong/Code Cong >0.5%
R4 DLLDRFOURTHACTION=CSInterRatShouldNotLDHO;MOD UCELLLDR: CELLID=1,
Huawei 3G DLLDRFIFTHACTION Power/Code Blocking Rearange LDR Sequence When Cell having Low accessibility due High DL Power Cong/Code Cong >0.5%
3G Huawei-Power/Code Blocking
Details of Parameter
Equip
ment Tech Parameter Name Category Purpose Applicable Condition Cons Severity Command Sample (Optional)
Huawei 3G DLLDRFIRSTACTION Power/Code Blocking Rearange LDR Sequence When Cell having Low accessibility due High DL Power Cong/Code Cong >0.5%
R4 DLLDRFIRSTACTION=CodeAdj;MOD UCELLLDR: CELLID=1,
Huawei 3G DLLDRSECONDACTION Power/Code Blocking Rearange LDR Sequence When Cell having Low accessibility due High DL Power Cong/Code Cong >0.5%
R4 DLLDRSECONDACTION=InterFreqLDHO;MOD UCELLLDR: CELLID=1,
Huawei 3G DLLDRTHIRDACTIONPower/Code Blocking Rearange LDR Sequence When Cell having Low accessibility due High DL Power Cong/Code Cong >0.5%
R4 MOD UCELLLDR: CELLID=1, DLLDRTHIRDACTION=BERateRed;
Huawei 3G DLLDRFOURTHACTION Power/Code Blocking Rearange LDR Sequence When Cell having Low accessibility due High DL Power Cong/Code Cong >0.5%
R4 DLLDRFOURTHACTION=CSInterRatShouldNotLDHO;MOD UCELLLDR: CELLID=1,
Huawei 3G DLLDRFIFTHACTION Power/Code Blocking Rearange LDR Sequence When Cell having Low accessibility due High DL Power Cong/Code Cong >0.5%
Huawei Confidential
3G Huawei-Power Blocking
Details of Parameter
Equipment Tech Parameter Name
Catego
ry Purpose
Applicable
Condition Cons
Severi
ty Command Sample (Optional)
Huawei 3G NBMULCACALGOSELSWITCH Blocking Power Disable uplink call admission control algorithm When Cell having Low accessibility due UL Power Congestion >0.5% Noise will increase without admission control Algorithm, might increase RTWP/degrade EcNo R4 UCELLALGOSWITCH:CELLID=xxxxx,NBMULCACALGOMOD SELSWITCH=ALGORITHM_OFF Huawei 3G ULTOTALEQUSERNU M Power Blocking Increase ULTOTALEQUSERNUM (e.g from 160 to 180) When Cell having Low accessibility due UL- Power Blocking for Existing value is less than 200 If value is larger, the cell capacity
for uplink equivalent user number (ENU) is
large and more users will be
admitted
R4 UCELLCAC:CELLID=XXXXX,ULTOTALEQUSERNUM=1MOD 80,
Huawei 3G UlOlcTrigThd Blocking Power increase UlOlcTrigThd to 100 (while still in ALGORITHM_OFF)
Cell with High UL Power Cong
(>0.5%)after Algorithm_OFF .
To implement many cell need
consider Processor Load is low to Medium (<70%) impact to processor load if
too many cells implemented
R4 UCELLLDM:CELLID=31890,ULOLCTRIGTHD=100;ADD
Huawei 3G RLMAXDLPWR & RLMINDLPWR Blocking Power
decrease RLPower : RLMAXDLPWR,RLMIN DLPWR (eg. 50,-100 to 0,-150 ) When Cell having Low accessibility due High DL Power Cong >0.5% Fail due Uu No reply/RL fail will
increase R4
MOD UCELLRLPWR:RLMAXDLPWR=0, RLMINDLPWR=-150
Huawei 3G DLCONVAMRTHD Blocking Power Increase DL Power threshold for AMR
When Cell having Low accessibility due High DL Power Cong >0.5% Noise will increase, might
3G Huawei-Power Blocking
Details of Parameter
Equip
ment Tech Parameter Name Category Purpose Applicable Condition Cons Severity Command Sample (Optional)
Huawei 3G DLCONVNONAMRTHD Blocking Power Increase DL Power threshold for Non-AMR When Cell having Low accessibility due High DL Power Cong >0.5% Noise will increase, might increase RTWP R4
MOD UCELLCAC: CELLID=1, DLCONVNONAMRTHD=90;
Huawei 3G DLOTHERTHD Blocking Power threshold for OtherIncrease DL Power
When Cell having Low accessibility due High DL Power Cong >0.5% Noise will increase, might
increase RTWP R4 MOD UCELLCAC: CELLID=1, DLOTHERTHD=80;
Huawei 3G DLHOTHD Blocking Power Increase DL Power threshold for HO
When Cell having Low accessibility due High DL Power Cong >0.5% Noise will increase, might
increase RTWP R4 MOD UCELLCAC: CELLID=1, DLHOTHD=95;
Huawei 3G DLCELLTOTALTHD Blocking Power Increase DL Power Total threshold
When Cell having Low accessibility due High DL Power Cong >0.5% Noise will increase, might
Huawei Confidential
Vendo
r
Tec
h
Resource
Type
Congestion Counter
NSN
3G
UL CE
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
NSN
3G
DL CE
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
NSN
3G
UL Power
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
NSN
3G
DL Power
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
NSN
3G
IuB
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
NSN
3G
Code
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
3G Nokia
Performance Counter for Congestion
Step of Action
Case
1st Action
2nd Action
3rd Action
CE Blocking/CE High Util
Check trending of CE
Availability
Physical Audit (involving TP analysis)
CE license and/or board
upgrade
Iub Blocking/Iub High Util
Physical Audit (involving TP
analysis)
IuB VC Split
Iub BW upgrade
DL- Power Blocking/DL -
Power High Util
Physical Audit (involving TP
analysis)
Activate 40W, maintain existing PCPICH
setting
Increase PtxTarget,
PtxMaxHSDPA
UL- Power Blocking
Physical Audit (involving TP
analysis)
Increase PrxTarget, adjust
DeltaPrxMaxUp,DeltaPrxMaxDown
2G Huawei
Performance Counter for Congestion
Step of Action
Case
1st Action
2nd Action
3rd Action
CE Blocking/CE High Util
Check trending of CE
Availability
Physical Audit (involving TP analysis)
CE license and/or board
upgrade
Iub Blocking/Iub High Util
Physical Audit (involving TP
analysis)
IuB VC Split
Iub BW upgrade
DL- Power Blocking/DL -
Power High Util
Physical Audit (involving TP
analysis)
Activate 40W, maintain existing PCPICH
setting
Increase PtxTarget,
PtxMaxHSDPA
UL- Power Blocking
Physical Audit (involving TP
analysis)
Increase PrxTarget, adjust
DeltaPrxMaxUp,DeltaPrxMaxDown
Code Blocking
Physical Audit (involving TP
analysis)
Decrease used MaxBitrateDLPSNRT (128
kbits/s, 64 kbits/s)
Vendo
r
Tech
Resource
Type
Congestion Counter
Huawei
2G
SDCCH
K3001:Failed SDCCH Seizures due to Busy SDCCH
Huawei
2G
TCH
K3011A:Failed TCH Seizures due to Busy TCH (Traffic Channel)
Huawei
2G
TBF
[A9003:Number of Failed Uplink GPRS TBF Establishments due to No Channel]
+[A9203:Number of Failed Uplink EGPRS TBF Establishments due to No Channel]+
[A9103:Number of Failed Downlink GPRS TBF Establishments due to No Channel]
+[A9303:Number of Failed Downlink EGPRS TBF Establishments due to No Channel]}
Huawei
2G
PDCH
[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 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]
Huawei Confidential
2G Huawei- TCH & SDCCH
Blocking
Details of Parameter
Equi
pme
nt
Tec
h
Parameter
Name
Categ
ory
Purpose
Applicable
Condition
Cons
erity
Sev
Command Sample (Optional)
Huaw
ei
2G IDLESDTHRES
SDCC
H
Blocki
ng
Reduce SDCCH
blocking
SDCCH
blocking &
Non TCH
Blocking
TCH
utilization
R4
SET
GCELLCHMGBASIC:IDTYPE=BYID,CELLID
=1,IDLESDTHRES=8;
Huaw
ei
2G TCHBUSYTHRES
TCH
Blocki
ng
Reduce SDCCH
& TCH blocking
TCH
blocking &
SDCCH, TCH
blocking
quality
R4
SET
GCELLCHMGAD:IDTYPE=BYID,CELLID=1
,TCHBUSYTHRES=2;
Huaw
ei
2G
AMRTCHHPRIOR
ALLOW
TCH
Blocki
ng
Reduce SDCCH
& TCH blocking
TCH
blocking &
SDCCH, TCH
blocking
quality
R4
SET
GCELLCHMGAD:IDTYPE=BYID,CELLID=1
,AMRTCHHPRIORALLOW=ON,AMRTCHHP
RIORLOAD=1;
Huaw
ei
2G
AMRTCHHPRIOR
LOAD
TCH
Blocki
ng
Reduce SDCCH
& TCH blocking
TCH
blocking &
SDCCH, TCH
blocking
quality
R4
SET
GCELLCHMGAD:IDTYPE=BYID,CELLID=1
,AMRTCHHPRIORALLOW=ON,AMRTCHHP
RIORLOAD=1;
Huawei Confidential
2G Huawei- PDSCH Blocking
Details of Parameter
Equi
pme
nt
Tec
h
Parameter
Name
Categ
ory
Purpose
Applicable
Condition
Cons
erity
Sev
Command Sample (Optional)
Huaw
ei
2G MAXPDCHRATE
PDCH
Blocki
ng
Reduce PDCH
blocking
PDCH
blocking due
to no
Convertable
TCHs
Throughput R4
SET GCELLPSCHM: IDTYPE=BYID,
CELLID=0, MAXPDCHRATE=80;
Huaw
ei
2G
PDCHUPLEV
PDCH
Blocki
ng
Reduce TBF
congestion
PDCH
blocking due
to CELL
PDCH Ratio
Thresh
Throughput R4
GCELLPSCHM:IDTYPE=BYID,CELLID=1,P
SET
DCHUPLEV=70;
Huaw
ei
2G PDCHDWNLEV
PDCH
Blocki
ng
Reduce TBF
congestion
PDCH
blocking due
to CELL
PDCH Ratio
Thresh
Throughput R4
SET
GCELLPSCHM:IDTYPE=BYID,CELLID=1,P
DCHDWNLEV=160;
Huaw
ei
2G
UPDYNCHNTRA
NLEV
PDCH
Blocki
ng
Reduce TBF
congestion
PDCH
blocking due
to no
Convertable
TCHs
Throughput R4
GCELLPSCHM:IDTYPE=BYID,CELLID=1,U
SET
PDYNCHNTRANLEV=70;
Huaw
ei
2G
DWNDYNCHNTR
ANLEV
PDCH
Blocki
ng
Reduce TBF
congestion
PDCH
blocking due
to no
Convertable
TCHs
Throughput R4
GCELLPSCHM:IDTYPE=BYID,CELLID=1,D
SET
WNDYNCHNTRANLEV=80;
Huawei Confidential
2G Nokia
Performance Counter for Congestion
Step of Action
Vend
or
Tec
h
Resource
Type
Congestion Counter
Nokia 2G
SDCCH
100 * ([SDCCH_BUSY_ATT] - [TCH_SEIZ_DUE_SDCCH_CON])/[SDCCH_SEIZ_ATT])
Nokia 2G
TCH
100 * ([TCH_REQUESTS_CALL_ATTEMPT] - [SUCC_TCH_SEIZ_CALL_ATTEMPT])/
[TCH_REQUESTS_CALL_ATTEMPT]
Nokia 2G
PDCH
100 * ([NO_RADIO_RES_AVA_DL_TBF] + [NO_RADIO_RES_AVA_UL_TBF])/([NBR_OF_DL_TBF] +
[NBR_OF_UL_TBF])
Nokia 2G
Type
Abis
dl_tbfs_with_inadeq_edap_res + ul_tbfs_without_edap_res
Blocking
Analyze
Action
CS Blocking & Non
PS blocking
SDCCH blocking & Non TCH
Blocking
check channel availability rate
(TCH Availability) & Transmission
performance, any intermittent or
not (Alarm). If all Ok then do the
action coloum
1.Reduce CRH (Cell Reselect Hysteresis =
HYS) if site in the LAC border area and increase
CRH for the NR cell in another LAC
2.Reduce CRO (Cell Resellect Offset =REO) or make negative value by set Penalty Time
(PET) to 640s
3.Add fix SDCCCH channel
TCH Blocking & Non SDCCH
blocking
check channel availability rate
(TCH Availability) & Transmission
performance, any intermittent or
not (Alarm). If all Ok then do the
action coloum
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
TCH Blocking & SDCCH blocking
check channel availability rate
(TCH Availability) & Transmission
performance, any intermittent or
not (Alarm). If all Ok then do the
action coloum
1. same as upper reduce SDCCH & TCH
blocking
2. Change PDCH to TCH if PDCH not
blocking or less
3.upgrade TRX
PS Blocking & Non
CS blocking
PS Blocking, TCH not Blocking
check channel availability rate
(TCH Availability) & Transmission
performance, any intermittent or
not (Alarm). If all Ok then do the
action coloum
1.Add Dedicated GPRS Capactity
(CDED) by increase the number
2. Add Default GPRS Capacity
(CDEF) byt increase the number
(Dynamic)
PS Blocking (Abis)
check channel availability rate
(TCH Availability) & Transmission
performance, any intermittent or
not (Alarm). If all Ok then do the
action coloum
1. Reduce egprsInitMcsAckMode
(MCA) & egprsInitMcsUnAckMode
(MCU)
2G Nokia – TCH & PDCH
Blocking
Details of Parameter
Equipm
ent
Tech
Parameter Name
Categor
y
Purpose
Applicable
Condition
Cons
Severit
y
Nokia
2G
btsSpLoadDepTchRateL
ower (FRL)
Blocking
TCH
Reduce TCH Blocking
TCH Blocking Rate
> 1%
Degraded voice
quality and SQI
R3
Nokia
2G
btsSpLoadDepTchRateU
pper (FRU)
Blocking
TCH
Reduce TCH Blocking
TCH Blocking Rate
> 1%
Degraded voice
quality and SQI
R3
Nokia
2G
amrSegLoadDepTchRat
eLower (AFRL)
Blocking
TCH
Reduce TCH Blocking
TCH Blocking Rate
> 1%
Degraded voice
quality and SQI
R3
Nokia
2G
amrSegLoadDepTchRat
eUpper (AFRU)
Blocking
TCH
Reduce TCH Blocking
TCH Blocking Rate
> 1%
Degraded voice
quality and SQI
R3
Nokia
2G
hoMarginPbgt
Blocking
TCH
Reduce TCH Blocking
TCH Blocking Rate
> 1%
Degraded voice
quality and SQI
R3
Nokia
2G
dedicatedGPRSCapacity
(CDED)
Blocking
PDCH
Reduce PDCH Blocking
PDCH Blocking
Rate > 1%
Possible increase
TCH Blocking
R3
Nokia
2G
defaultGPRSCapacity
(CDEF)
Blocking
PDCH
Reduce PDCH Blocking
PDCH Blocking
Rate > 1%
Possible increase
TCH Blocking
R3
Nokia
2G
egprsInitMcsAckMode
(MCA)
Blocking
PDCH
Reduce PDCH Blocking
PDCH Blocking
Rate > 1%
Possible increase
TCH Blocking
R3
Nokia
2G
egprsInitMcsUnAckMod
e (MCU)
Blocking
PDCH
Reduce PDCH Blocking
PDCH Blocking
Rate > 1%
Possible increase
TCH Blocking
R3
Huawei Confidential
2G Siemens
Performance Counter for Congestion
Step of Action
Vendor Tech Resource Type Congestion Counter
Siemens 2G SDCCH ATSDCMBS / NATTSDPE
Siemens 2G TCH (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 Siemens 2G PDCH REJPDASS_1..37 / (NUACATCL_3 + NUACATCL_6)
Siemens 2G Abis ABISPSUP[7]/(ABISPSUP[6] + ABISPSUP[7])
Type
Blocking
First step
Second step
CS Blocking &
Non PS blocking
SDCCH blocking &
Non TCH Blocking
check channel availability rate & Abis transmission
availiblity rate,any intermittent rise TT (cause maybe
due to Abis problem)
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)
TCH Blocking & Non
SDCCH blocking
check channel availability rate & Abis transmission
availiblity rate,any intermittent rise TT (cause maybe
due to Abis problem)
1. Reduce HRACCT1 and HRACTAMRACT1 2. Reduce GPDPDTCH
3. Reduce GMANPRESPRM & EMANPRESPRM 4. Increase SDCCHCONGTH (max: 100)
TCH Blocking &
SDCCH blocking
check channel availability rate & Abis transmission
availiblity rate,any intermittent rise TT (cause maybe
due to Abis problem)
1. Same as upper reduce SDCCH & TCH blocking 2. Increase PWRRED to 2 3. Upgrade TRX
PS Blocking &
Non CS blocking
PS Blocking -> due
to no PDCH resource
check channel availability rate & Abis transmission
availiblity rate,any intermittent rise TT (cause maybe
due to Abis problem)
1. Increase GMANPRESPRM & EMANPRESPRM 2. Increase GPDPDTCH
PS Blocking -> due
to PDT resource
check channel availability rate & Abis transmission
availiblity rate,any intermittent rise TT (cause maybe
due to Abis problem)
Rebalancing PRPTPGID
PS Blocking-> no
Abis Timeslot is
Available
1. Change GASTRABISTH to 60-70-40-502. Add SUBTSLB on A-bis
CS Blocking & PS
blocking
check channel availability rate & Abis transmission
availiblity rate,any intermittent rise TT (cause maybe
due to Abis IP capacity problem)
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)
2G/3G
reselection
( traffic share)
1.Inter-RAT Cell Reselection Enable(IRAT reseclection)
2.Qsearch C Initial(seach 3G in Idle mode) 3.Qsearch I(7=always seach 3G) 4.FDD Qmin (3G candidate cells EC/NO threshold)
5.FDD Qmin Offset(candidate cells EC/NO offset)
