- This topic has 5 replies, 1 voice, and was last updated 13 years, 9 months ago by pix.
1st March 2007 at 10:27 #46740RajeshGuest
Hi, in Nokia equipment how can we trouble shoot TRAU drops of a sector. There is no issue in the other 2 sectors. H/W no issues. All the drops are pegged as “tch_tr_fail”. Can somebody please help me out in this???2nd March 2007 at 14:07 #46741PavelGuest
May be some of TCH at BTS is configured for codec, which is not supported by TCSM? For example AMR…2nd March 2007 at 19:13 #46742PixGuest
If you have TRE failures leading to drops, it must be a hardware issue. Try mounting a TRE from another sector within this sector and see how it works.
You’re going for a typical troubleshooting:
good luck 🙂5th March 2007 at 05:23 #46743RajeshGuest
The 196 report which gives us the Quality report of individual TRX is clean. and if there is any issue in the HW it would get pegged as “tch_radio_fail”. So we have eliminated that cause.
The good news is that we did a recommission of the sector alone and the issue has been solved. We have also changed the value of ITCF to 5 from present value of 3. so is this the only solution???
Can you please throw more light on the configuration of TCH time slots. We have Dual rate and our TCSM is also configured for the same. WRT AMR, our configuration is OK. any particular report that i can run which will pinpoint the problem.
Thanks to all
Regards5th March 2007 at 14:32 #46744PavelGuest
If you have dualrate for BTS and TCSM , than you should search problem at hardware, try to change boatrd etc, as Pix mensioned5th March 2007 at 22:58 #46745pixGuest
i’m not familiar with your system, but as far as i understand it : tch tr fail = tch failures due to TRE problems… or any board failure, more generally. maybe i’m wrong though 🙂
recomissioning the site, it clearly indicates you had an issue with your site configuration (controller board, tre software, etc…) and not your radio configuration (frequencies, parameters, etc)