SDDCCH drop (T3101) Ultra Site 2G

[Amrel]

Hi!
Please your help for this case.I have SDDCCH drop on more 60 sectors. Vendor Ultra Site (nokia). Drop observed during the night (60-80%) The reason of drops is subscriber call counter No. T3101. TCH drop - 8-15% - slightly above normal. BTS's does not have anything in common with each other. BTS don't have any alarm. Where do look for the cause?

[plannerguy]

Hi

what at the quality of SD mapped TRX.?

Rgds
Plannerguy