-
Senior Member
Reputation: 491
SD Traffic much higher than TCH Traffic
Dears,
Kindly share your experience,
I've one cell where SD Traffic is much higher than TCh Traffic (4 times)
What could this strange issue, how come customers use SD 4 times greater than TCHs?
-
2014-10-13 11:50 PM
# ADS
Circuit advertisement
-
Re: SD Traffic much higher than TCH Traffic
it could be a LAC border cell, also check Location update parameters (timers core side).
hope it may help
-
Senior Member
Reputation: 386
Re: SD Traffic much higher than TCH Traffic
Interesting looking forward to hear the real cause..
Analyze all events related to that cell...
Regards
Scorpion-Learning 5G+4G
No Thanks Please ....But few clicks on Reputation always Welcome :-))
-
Member
Reputation: 41
Re: SD Traffic much higher than TCH Traffic
It could be a boarder Cells with High Location update request,
or its overshooting Cells with high TA
Originally Posted by
justdream
Dears,
Kindly share your experience,
I've one cell where SD Traffic is much higher than TCh Traffic (4 times)
What could this strange issue, how come customers use SD 4 times greater than TCHs?
-
Member
Reputation: 27
Re: SD Traffic much higher than TCH Traffic
Hello,
Don't forget to check 3G to 2G Cell Reselection parameters, each one has a Location Update
-
Re: SD Traffic much higher than TCH Traffic
Using CME do a compare parameter check with another healthy same band sector.Normally this happens when you mess up with parameters.
Add me Rep to become a Senior Member :)
-
Re: SD Traffic much higher than TCH Traffic
Hi,
I confirm what tharinduwije just said, i encoutered a similar case (MCC & MNC wrong configuration)
This is not a normal behavior even in border area or overshooting cases, you have for sure mess up parameters.
Please do a comparaison with a healty cell and reply back to the post.
Best regards,
-
Member
Reputation: 41
Re: SD Traffic much higher than TCH Traffic
Dear,
you can increase the "Cell Re-select Hysteresis " in the boarder cells.
it could support to reduce the signaling traffic Or you can tilting the overshooting sites by checking the TA counters.
-
Member
Reputation: 43
Re: SD Traffic much higher than TCH Traffic
Originally Posted by
justdream
Dears,
Kindly share your experience,
I've one cell where SD Traffic is much higher than TCh Traffic (4 times)
What could this strange issue, how come customers use SD 4 times greater than TCHs?
I have experienced this before, its due to the cell overshooting across a LAC boundary, increase CRH to say 12 or 14 to reduce this effect.
-
Member
Reputation: 260
Re: SD Traffic much higher than TCH Traffic
Hi bro,
Also Check Mean Holding Time for SDCCH. Sometimes some SDCCH TS stucks giving huge increase in MHT and Traffic. generally issue is resolved by giving reset to cell or shuffling SDCCH timeslots. You have to check if MHT is abnormal or SDCCH attempts are abnormally high. If SDCCH attempts are abnormally high then issue might be with Idle mode parameters i.e CRO or CRH.
Originally Posted by
justdream
Dears,
Kindly share your experience,
I've one cell where SD Traffic is much higher than TCh Traffic (4 times)
What could this strange issue, how come customers use SD 4 times greater than TCHs?
Bookmarks