We are facing problem of high call drop rate after site shifted from one BSC to another BSC. Database is correctly defined. Wat can be the possible reasons?? Also problem is in specific cells; not in all cells..
what is the cause of the call drop ? can you find a more specific indicator ?
if you didn’t change anything on the radio side, the problem is coming from your BSC or your Abis link. Therefore, it’s quite probably vendor specific… Have you tried deleting the BTS & cells and re-creating them ?
Would it be that old BSC and new BSC belong to two different MSC?
And when shifted the cell wasn’t created correctly in target MSC?
Is the new LAC for this cell update in MSC?
HO relation: this cell must be defined as external to old BSC, or outer to old MSC, with correct CGI.