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Junior Member
Reputation: 10
FACH Congestion in Cell Level
Hi All
Ive been facing FACH Congestion issue in my network which has EFD enable already.
we've done expand the 2nd SCCPCH also. For time being we adjust RNC level parameter related to EFD.
is there any idea to reduce FACH Congestion by cellwise insted of physicall optimization/new site ?
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2014-08-12 07:01 PM
# ADS
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Re: FACH Congestion in Cell Level
Try to push users faster to URA-PCH instead of holding them in FACH state !
Originally Posted by
emuvars
Hi All
Ive been facing FACH Congestion issue in my network which has EFD enable already.
we've done expand the 2nd SCCPCH also. For time being we adjust RNC level parameter related to EFD.
is there any idea to reduce FACH Congestion by cellwise insted of physicall optimization/new site ?
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Junior Member
Reputation: 10
Re: FACH Congestion in Cell Level
Thanks electron, so the idea is to fasten F2P state.
I wonder to know parameter in cell level to adjust?
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Re: FACH Congestion in Cell Level
Hi,
no it is channel switching related parameter (RNC level) but in E/// i guess in W13 onward there will be some cell level channel switching . Also cross check FDH related timers as well it might help you.
Cheers
Originally Posted by
emuvars
Thanks electron, so the idea is to fasten F2P state.
I wonder to know parameter in cell level to adjust?
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Member
Reputation: 277
Re: FACH Congestion in Cell Level
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Member
Reputation: 295
Re: FACH Congestion in Cell Level
Hello,
Try to optimize state transition timers DCH-FACH.
Check power control as well.
BR
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Users Awaiting Email Confirmation
Reputation: 332
Re: FACH Congestion in Cell Level
increase BW of FACH from defaul 4500 to 9000,monitor transition state succes rate and drop rate fach.if drop then increase power fach
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Senior Member
Reputation: 402
Re: FACH Congestion in Cell Level
Hi Sabila,
can you provide the Script to change the FACH (SCCPCH) BW?
Future Belongs to those possessing beautiful DREAMS
:)
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PWD:f1net0p1x
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Member
Reputation: 277
Re: FACH Congestion in Cell Level
Dear qaqa,
this script for adding 2nd SCCPCH and increasing BW to 9000
DEA UCELL: CELLID=XXXXX;
DEA USCCPCH: CELLID=XXXXX, PHYCHID=8;
DEA USCCPCH: CELLID=XXXXX, PHYCHID=9;
RMV UPCHDYNTFS: CELLID=XXXXX, TRCHID=3, RLCSIZE=240;
RMV UPCH: CELLID=XXXXX, TRCHID=3;
RMV UPICH: CELLID=XXXXX, PICHID=10;
RMV UFACHLOCH: CELLID=XXXXX, TRCHID=4;
RMV UFACHDYNTFS: CELLID=XXXXX, TRCHID=4, RLCSIZE=168;
RMV UFACHDYNTFS: CELLID=XXXXX, TRCHID=5, RLCSIZE=360;
RMV UFACH: CELLID=XXXXX, TRCHID=4;
RMV UFACH: CELLID=XXXXX, TRCHID=5;
RMV USCCPCH: CELLID=XXXXX, PHYCHID=8;
RMV USCCPCH: CELLID=XXXXX, PHYCHID=9;
ADD USCCPCHBASIC: CELLID=XXXXX, PHYCHID=8, SCRAMBCODE=0, SLOTFORMAT=D4;
ADD USCCPCHTFC: CELLID=XXXXX, PHYCHID=8, CTFC=0;
ADD USCCPCHTFC: CELLID=XXXXX, PHYCHID=8, CTFC=1;
ADD UPICH: CELLID=XXXXX, PHYCHID=8;
ADD UPCH: CELLID=XXXXX, PHYCHID=8;
ADD UPCHDYNTFS: CELLID=XXXXX, RLCSIZE=240, TFSNUMBER=D2;
ACT USCCPCH: CELLID=XXXXX, PHYCHID=8;
ADD USCCPCHBASIC: CELLID=XXXXX, PHYCHID=9, SCCPCHOFFSET=100, SCRAMBCODE=0, SLOTFORMAT=D10, TFCIPRESENCE=EXISTS;
ADD USCCPCHTFC: CELLID=XXXXX, PHYCHID=9, CTFC=0;
ADD USCCPCHTFC: CELLID=XXXXX, PHYCHID=9, CTFC=1;
ADD USCCPCHTFC: CELLID=XXXXX, PHYCHID=9, CTFC=2;
ADD USCCPCHTFC: CELLID=XXXXX, PHYCHID=9, CTFC=3;
ADD USCCPCHTFC: CELLID=XXXXX, PHYCHID=9, CTFC=4;
ADD USCCPCHTFC: CELLID=XXXXX, PHYCHID=9, CTFC=5;
ADD USCCPCHTFC: CELLID=XXXXX, PHYCHID=9, CTFC=6;
ADD UFACH: CELLID=XXXXX, PHYCHID=9, TRCHID=4, RATEMATCHINGATTR=220, TOAWS=35, TOAWE=10, CHCODINGTYPE=CONVOLUTIONAL;
ADD UFACH: CELLID=XXXXX, PHYCHID=9, TRCHID=5, RATEMATCHINGATTR=130, TOAWS=35, TOAWE=10, MAXCMCHPI=D13, MINCMCHPI=D0, SIGRBIND=FALSE, CHCODINGTYPE=TURBO;
ADD UFACHDYNTFS:CELLID=XXXXX, TRCHID=4, RLCSIZE=168, TFSNUMBER=D3, TBNUMBER1=0, TBNUMBER2=1, TBNUMBER3=2;
ADD UFACHDYNTFS:CELLID=XXXXX, TRCHID=5, RLCSIZE=360, TFSNUMBER=D3, TBNUMBER1=0, TBNUMBER2=1, TBNUMBER3=2;
ADD UFACHLOCH: CELLID=XXXXX, TRCHID=4;
ACT USCCPCH: CELLID=XXXXX, PHYCHID=9;
ACT UCELL: CELLID=XXXXX;
BR,
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Post Thanks - 1 Thanks
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Senior Member
Reputation: 402
Re: FACH Congestion in Cell Level
Thank you PTE,
It is still not clear for me where the 9000 BW is defined from the script. can you please provide a detailed information. if you have a H// document abou this change it will be very welcome.
thank you,
Future Belongs to those possessing beautiful DREAMS
:)
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PWD:f1net0p1x
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