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Reply To: handover failure due to protocol error

#61757
ALU
Guest

Dear Pix,
All BSCs are of Alcatel.There is no other vendor in this area. All the three BSCs(say A,B,C) are located in the same vicinity. I think the problem is with BSC “B”. All outgoing HO’s from (B to A) and (B to C) are having this problem(note that B only has border with these 2 BSCs). However, A and C have borders with multiple BSCs but for them,only the outgoing Handovers towards B are failing. So, thats why I think there should be something wrong with BSC “B”.
The problem is only with these 3 BSCs and its showing from the NPO Reports aswell.There is degradation in Outgoing Inter BSC Handover Success Rate for these 3 BSCs. Percentage of ROC has increased and correspondingly degradation in CDR observed aswell.
Also the problem started for all the BSCs at the same hour. Now, BSS/Core Team are still insisting that there was no activity from their side that led to this degradation. What to do now :)?