Ericsson CSSR Formula This topic has 26 replies, 1 voice, and was last updated 1 year, 4 months ago by mohammed. Viewing 12 posts - 16 through 27 (of 27 total) ← 1 2 Author Posts 26th August 2009 at 08:48 #54348 AliAsgherGuest It is recommended to calculate CSSR from Drive Test. Although for Ericsson systems the recommended CSSR formula is CSSR = 100 * ([TCASSALL + TFCASSALLSUB + THCASSALL + THCASSALLSUB]/ TASSALL) * (1 – ([RAOREQ + RAAPAG + RACALRE]/CNROCNT) * (CCALLS-CMSESTAB)/CCALLS) * (1 – ([RAOREQ + RAAPAG + RACALRE]/CNROCNT)* (CNDROP – CNRELCONG)/CMSESTAB) Hence it can be explained as CSSR = TCH Assignment * (1-SD Establishment for TCH Calls) * (1-SD Drops for TCH Calls) 25th May 2010 at 09:45 #54349 MuckyGuest CSSR is standard to measure any call attempt which can be sucessfully be a call setup. CSSR is formula that usually used for DT KPI. 31st May 2010 at 13:17 #54350 IwansGuest Hi Pak Mucky, CMIIW CSSR one of item in kpi which is belong to SD_DROP & SD_BLOCK 5th August 2010 at 14:30 #54351 Cha1Guest What are the reasons for low Originating call setup Success Rate (Low originating CSSR) in CDMA 7th September 2010 at 22:29 #54352 kashifGuest what is the huawei cssr formulae? 28th December 2010 at 15:57 #54353 GOWTHAMAN.PGuest WAT IS MEANT BY CSSR AND DCR? 15th April 2011 at 06:50 #54354 ThavamGuest I want to know the expansion for the terms mentioned in following formula. CSSR = 100 * ([TCASSALL + TFCASSALLSUB + THCASSALL + THCASSALLSUB]/ TASSALL) * (1 – ([RAOREQ + RAAPAG + RACALRE]/CNROCNT) * (CCALLS-CMSESTAB)/CCALLS) * (1 – ([RAOREQ + RAAPAG + RACALRE]/CNROCNT)* (CNDROP – CNRELCONG)/CMSESTAB) 20th May 2011 at 15:14 #54355 waqasGuest CSSR stands for call set up success rate……it is one of the KPI’s used for measuring the performance of network 4th April 2012 at 08:18 #54356 IbrahimaGuest What is the process ? can you give me one example please ? 11th May 2012 at 22:57 #54357 chrisGuest Hello Need a Favor please Any idea about the 2 Below KPI – Average uplink CE congestion rate – Power Congestion • Which input to use • Any Measurement Protocol • Minimum Level • Formula to use Many Thanks Chris 17th May 2012 at 07:16 #54358 BijoyGuest Hi Chris Could you pls specify the vendor. Br\\ Bijoy 1st August 2022 at 17:56 #102842 mohammedGuest Hi, The below formula is it correct to calculate CSSR from MSS level CSSR= ( MO Assignment Success Times (times)+MT Assignment Success Times (times))/(MT Paging Response Times (times)+MO CM Service Request Times (times))*100 Your comment is highly appreciated Author Posts Viewing 12 posts - 16 through 27 (of 27 total) ← 1 2 The forum ‘Telecom Design’ is closed to new topics and replies.