RRC Setup Failure due to Radio

[maasricht]

Suddenly, in our network rrc setup failure due to Radio appeared.

- No any parameter changes,
- no new site or removing.
-Site reset and re-commissioning.

The other stats are fine..

Vendor is NSN.

Any suggestion?

[maq17]

It seems like a hardware problem. Do you know how the node B is configured? FSME,FSMD,FSMB?. Do you use FSM Extension?, What about your RF modules? how are they configured? How many channel elements licenses you have? how many of them are used as maximum?

[erastus]

Have you checked out for Iub Utilization, CE Utilization or RAB failures due to Power congestion??

[pgr19]

maybe you should check the hardware, is there any upgrade or something ? because i have an experience in Huawei vendor, the number of RRC Rej due to radio link failure was increased after there is a CE congestion upgrade, there is some wrong procedure when placing the upgraded CE board and impact to the main processing board causing the failure.
thanks

[maasricht]

I found problem on WSPC, but no alarm on site. I locked WAMA group one by one. At the end, i found one WSPC was problem.

RRC Setup Failure due to RNC was improved.