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mbo
2009-04-17, 04:16 AM
Hello Friends,
Somebody it is it, how I could ameliorate CSSR on techonogie Alcatel 2G Beforehand thank you for your help
Best Regards:)

kais
2009-04-18, 04:20 AM
u must know that cssr in Alcatel is computed as (1-sd drop)*(1-ass tch fail) so u must tune those two indicator ( sd drop and tch ass fil) :
1-sd drop tuning : u must differenciate sd drop : bss, or radio in case of radio u can tune fréquency change , change sd to other trx or enable ho sd parameter.
2- tch ass fial : chek cong tch tuning by increasing capacity : DR, FDR, HR...

mbo
2009-04-18, 08:35 AM
For me CSSR = (SDCCH Seizure SR) * (1 - SDCCH drop rate) * (TCH Normal Assignment SR)

thanks for your response, I'll check the next week.
BR

lamhd_bk
2009-05-18, 08:30 PM
ok, as you know. CSSR= 1- CSF ( call setup failure ), so if you improve the CSSR that similar decrease the CSF, right ?
Call setup failure can be categorised as follow :
Failure befor assignment (SDCCH RF loss, MSC rejection, user clearning,...)
Block TCH assignment ( Insufficient TCH resources)
Failed Assignment ( Failure to assign to TCH due to RF reason, eg. Interference )

don't forget click thank and reputation.

ps : click thank and reputation, i will share you the interesting doccument about this problem :p

nabil el haddani
2009-08-31, 04:10 PM
Hi guys,

there is a document explaining how to improve CSSR KPI in Alcatel BSS


don't forget click thank and reputation ;)

Regards

Nabil

Jackvn
2009-08-31, 07:26 PM
Hi guys,

there is a document explaining how to improve CSSR KPI in Alcatel BSS


don't forget click thank and reputation ;)

Regards

Nabil

Thanks for show:)./.