SDCCH blocking is high

This topic has 61 replies, 1 voice, and was last updated 9 years, 3 months ago by ANISH.

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25th October 2010 at 05:20 #45845

Ahmed
Guest

One reason for SD blocking is high paging load due to increased number of location updates in a certain location area.

26th October 2010 at 16:08 #45846

rama narayan
Guest

how to sove the calldrop problem after high handover failure

10th January 2011 at 09:51 #45847

Yogesh
Guest

Hi
Can anyone explain in Nokia system (BMA) Bts measurement averaging.
presently its value is set to 1, what happens if i will make it 4 i.e. max

4th March 2011 at 07:15 #45848

Sush D Rock
Guest

Guys Please give me an explanation about “How SDCCH Drop is being affected by Location updates and LAC boundaries?”

Thank you in advance.
Please need it urgently.

4th March 2011 at 16:12 #45849

vivek
Guest

I have High TCH RF loss in Some Cells kindly suggest me wht could be the reasons as i m new in optimization.

24th March 2011 at 08:48 #45850

xiaomutou
Guest

Actually the most often reasons behind SD blocking are :

1- poor coverage
2- improper TXinteger setting
3-LAPd delay (transmissio)
4-Cochannel/Co BSIC interference
5-UL interference + Fake access requests
6-Overshooting.

hope that helps

30th March 2011 at 15:22 #45851

Lohi Daniels
Guest

Pls what does SD blocking cause on the network?

14th November 2011 at 10:10 #45852

Subinay Dey
Guest

Hi!
Friends

Can You Tell Me How Can I Define HSN & MAIO of 3 sector of a site(config-2.2.2).

Waiting for your reply.

16th November 2011 at 07:23 #45853

teleman
Guest

first change hardware in most of case due to hardware malfunctioning it happen,

after change if still not resolve than shift BCCH on different TRX,

If still not resolve change BCCH trx from Hopping to No-hopping mode,

if still not resolve enable TCH immediate assign

for complete doc on SDCCH get from below,

http://www.telecomsource.net/showthread.php?179-Nokia-2G-SDCCH-Study

8th December 2011 at 06:02 #45854

Sandeep Khokhar
Guest

reasons for SDCCH & TCH drop ?

Regards
Sandeep

28th February 2012 at 19:46 #45855

Zahid Khan
Guest

Hay friends! if a multicoupler is faulty or isnt working properly then u can get SD blocking issue.

12th March 2012 at 14:31 #45856

ALI SIDICK
Guest

Hi

I have a probleme when i am postprocessing the logfile of drive test,the rate of call failure is more that call set up success? this is due to:

Can anyone help us to get more explanation about call summaries (to help you to know your account and your call details durations),it is possible that can affect the incomming call?

20th April 2012 at 02:35 #45857

Rasta Bum2
Guest

Hi Mr. i have problem on high SD blocking but not on TCH blocking, on some cell that contribute found some transmission alarm (radio link failure, radio signaling link disconnected), whether this alarm affected to SD blocking??
I already add more SD channel but still blocking…

Thank’s

21st April 2012 at 07:05 #45858

pix
Guest

hi rasta bum,

Please check the number of SDCCH requests or attempts made per hour in the cell.
Plot this on an hourly graph, along with the SDCCH blocking rate.
Do you notice a high number of requests when the congestion is high ?
Then, find the indicator “sdcch congestion time” -> how high is this indicator during the hour when blocking is high ?

regards
pix

27th April 2012 at 20:49 #45859

Abdelkerim Fadoul
Guest

Reason SDCCH for TCH drop call and on different TRX.

best regard
Fadoul
Author

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