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# Ericsson CSSR Formula

Viewing 15 posts - 1 through 15 (of 26 total)
• Author
Posts
Jose
Guest

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
Guest

Hi Jose,

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

Hope it helps!

Raghvendra Singh
Guest

CDMA & GSM Kpi formulas

danielle
Guest

(TCASSALL/TASSALL)*100

Douglas
Guest

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

kamaz
Guest

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
Guest

Dear expert,

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

Jean Thomas
Guest

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

Daniel
Guest

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
Guest

hello friends

what is the meaning of CINR …

hussain
Guest

dear all

can u explain me the meaning of TCASSALL

Sanjay Hira
Guest

Is there a way to convert PS Erlang to megaytes?

WICOP
Guest

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
Guest

CSSR stands for Call Setup Success Rate

Wicop
Guest

Hi Hosea,

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

BR,
Wicop

Viewing 15 posts - 1 through 15 (of 26 total)
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