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7th December 2010 at 06:26 #42450MizanGuest
Can you tell me the reasons behind SDCCH drops. Does it have any impact on MPD(minute per drop and if so how it effects?27th January 2011 at 11:46 #42451dnyanuGuest
waht is criterion for dynamic sdcch allocation22nd February 2011 at 09:30 #42452Ashish DubeyGuest
Hi,Guys,We are facing a problem of congestion of more than 1% on all our sites,it is ranging from 1% to 60%,there are more 10,000 Location updates request in every cell every day.we are a new operator & we have only 100 customers.we found that location updates are from other operators,we are not able to find out the reason why other operators customers are trying to latch on our network,we are using ZTE equipment,bts ZGR8018,8112 & BSC-iBSC10.can any body help.22nd February 2011 at 09:43 #42453janeGuest
please why should and sdcch congest when there is enough resources to cater for its load22nd February 2011 at 13:51 #42454ATTOGuest
In real environnment SDCCH congestion will depend on load of the cell ( cell high or low loaded ) and the type of the cell : LAC border, internal etc..
Take a look at this example:
Imagine you define 1 TS SDCCH on cell that got 1 TRX:
Theoriticaly this cell can handle 2.74 Erl of traffic SDCCH at GOS 0.5 but this load is for One Hour period. Imagine at one time, a bus containing 40 people cross this area (Supposition is done that this cell is a lac border) , that is only 8 MS will do LA updating , the others 32 MS will wait and send again request one time again; this could lead to congestion if this cell is not loaded enough on busy hour to hidden the local time congestion.
Regards.10th June 2011 at 08:53 #42455alphachildGuest
What is the impact of alocating all SDCCHs on the BCCH TRX?
what are the merits and de-merits.10th June 2011 at 14:17 #42456SmartGuest
If you are using FH it is highly recommended to use SDCCH TS only on BCCH channel.
Its not recommended to add more than 4 TS22nd October 2011 at 17:27 #42457mokhtarGuest
how many users can served by 1 SDCCH TS?22nd October 2011 at 18:19 #42458pixGuest
up to 8 users maximum.
regards,14th August 2013 at 12:58 #42459Hailemichael.alemuGuest
what do mean SDCCH congustion rate?14th March 2015 at 07:47 #42460Surajit SahaGuest
Please tell me that
1 SD & 1 TCH Caring how much Erlong traffic.