[Jose]

Hello chaps,

Since CSSR is not a standard KPI, I have made up a formula which is:

(THCASSALL+TFCASSALL)/(TASSALL/CMSESTAB)*(CCONG+CMSESTAB)

It works fine, but sometime it gives over 100 % in the TCH part, does anyone know is it correct forumla ????

Thanks.

Jose

[risa]

Hi Jose,

CSSR = SDCCH success seizure * ( 1- SDCCH drop) * TCH success seizure.

Hope it helps!

[Raghvendra Singh]

CDMA & GSM Kpi formulas

[danielle]

(TCASSALL/TASSALL)*100

[Douglas]

AM A RADIO PLANNER AND OPTIMISATION INTERN IN VODACOM SA
WHAT IS CSSR STAND FOR AND WHAT IS IT?

[kamaz]

Hi all,

@ risa: it’s an ALU Formula, they dont have the same approach.

@ Jose: if you have a Direct Retry in your Network you will have this behaviour in the TCH part. It’s simple, when we perform a TCH Request in one cell (cell1) but due to congestion we perform a Direct Retry to another cell (cell2), in addition, we have a TCH Att in cell1 and a TCH Succ in cell2 (not in cell1). So TCH Success in cell2 will be over than TCH Att in the same cell (cell2) ==> TCH Success Rate over than 100%.

[Fleurival]

Dear expert,

i would like to know how i can calculate the drop calls in the alcatel MSCSs

[Jean Thomas]

hi all,
can someone tell me some ways to improve processes within performance area : KPI definition and performance weightings.

[Daniel]

Hi,

Can help to explaint what is the CSSR stand for an from where can i have a better understanding in all the radio terms ?

Thanks.

Regards
Daniel .

[sathiyaraj]

hello friends

what is the meaning of CINR …

[hussain]

dear all

can u explain me the meaning of TCASSALL

[Sanjay Hira]

Is there a way to convert PS Erlang to megaytes?

[WICOP]

Hi Sanjay,

I think that’s not good solution. Because Very many parametrs depending to result (Erlang to Mbytes). You need formula for PS traffic by kbit/s.

What kind of system using?

[Hosea]

CSSR stands for Call Setup Success Rate

[Wicop]

Hi Hosea,

Do you know formula for PS and HS traffic by kbit/s

BR,
Wicop

[Author]

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