Hi Experts.
Have anyone faced a issue of Inter-Vendor HO failure in LTE between Nokia and Huawei?
I have a scenario where HO is success from Huawei to Nokia but otherway it is failing.
It started after addition of a new band[B66] in Huawei network.
LNHOIF/IRFIM MO in Nokia are updated already.
Any other possible reasons for such fails?
At what stage handover is failing?
Preparation or execution?
Execution.
Really?
RACH failure during HO?
RACH is Ok.
But we have this B66 [AWS], 2nd band added. does some parameters at X2 level needs to be checked?
Huawei suggested to verify equivalent parameter of MFBI as some Master-Slave config could be issue.
Execution mean RRC Reconfiguration sent to UE for handover → RACH success → RRC Reconf complete to target eNB.
You are saying RACH is Ok then where HO is failing?
I have yet to request the trace, till now I have revised the KPIs/counters of Prep/Execution.
The counter / cause for Voice [QCI1] is M8006C276[ QCI1 E-RABs released due to failed Handover].
Impact is found both in data+voice.