- This topic has 115 replies, 1 voice, and was last updated 5 years, 11 months ago by Surajit Saha.
28th October 2009 at 18:23 #42435silvanusGuest
i have cells with which perform good HO in only one direction and high failure the opposite direction (Alcatel) which parameter can i change to improve HO in both directions?10th November 2009 at 10:35 #42436sanjuGuest
1)Can anyone tell me what is 1×1, 1×3 frequency plan??
2)Reasons of Handover failure?8th December 2009 at 01:43 #42437ammadGuest
SDCCh drop11th December 2009 at 07:35 #42438SandeepGuest
hi….. can any one tell me how can we reduced the sdcch drop in our network11th December 2009 at 09:17 #42439RFGuest
interference or trx faulty is one of reason of SDCCH drop1st January 2010 at 03:04 #42440FrenchkissGuest
I checked all of reason relating SD Congestion. So I cannot Find out it exactly. I think that It relates to BSC’s software or hardware. Could you give me the good way to correct it1st January 2010 at 10:09 #42441dharmendraGuest
what the main reason for sdcch and tch drop and how i can remove6th January 2010 at 14:27 #42442MacaiGuest
There are counters that indicate TCH drop reason in statistic (vendor specific):
3.Low Signal Strength
If TCH drop reason peg in counter Quality is high. Probably you can check on the IOI= interference on idle for the specific frequency.8th January 2010 at 22:26 #42443AzizGuest
the SDCCH dont require on HO attempt, check only the TCH availability.
Thks.9th January 2010 at 06:28 #42444BijoyGuest
What is your opinion about SDCCH Handovers??
Bijoy3rd February 2010 at 13:27 #42445UrielGuest
Good morning all of you, forgive me about my level n englsh, I amnot english man.
want to know de formula of SDCCH_assign_congestion_rate
please. Tanks you4th February 2010 at 10:13 #42446suneel kainthGuest
how we can clear the 7725 alarm in nokia bts5th February 2010 at 04:48 #42447RaulGuest
What is the suppli info.. if its 2 wait for CD8.06th February 2010 at 15:39 #42448DaviDGuest
I can only help to provide formula for SDCCHBlockRate=(100.0*ATSDCMBS_s1/NATTSDPE_s1)
where ATSDCMBS_s1|(1,8): Attempted SDCCH Seizures Meeting an SDCCH Blocked State, NATTSDPE_s1|(1,7): Number of Attempted SDCCH Seizures in a Period7th February 2010 at 04:56 #42449SBGuest
SDCCH congestion could be as simply as low SDCCH dimensioning based on the number of radios you have on that sector…how is your SDCCH radio dimension done …also are those sectors having high SDCCH in BSC boarders or high traffic area?
Please review dimensining part first and increase # of SDCCH assignment as necessary..try it out increasing one or two additional..and monitor.There are location upate parameters also which may need to be looked at. Good luck !!