TpaDevice_AmplificationError

[sataron]

probableCause: EquipmentMalfunction
specificProblem: TpaDevice_AmplificationError
managedObjectClass: TpaDevice
managedObjectInstance: SubNetwork=ONRM_RootMo_R,SubNetwork=RNC1,MeContext=SITE1,ManagedElement=1,Equipment=1,SectorAntenna=1,AuxPlugInUnit=RRU,RruDeviceGroup=1,TpaDeviceSet=1,TpaDevice=1
0
Could any one tell me - why im have this error on some RRU on my network. RBS 3418, RRU2240
And can im do something to fix this problem?

[student1984@bk.ru]

What is the current level of software?
These accidents were common after a restart on P5 without blocking RRU

[sataron]

Current SW ver is R06B. On R05 all work good.

[jamal]

Dear Mate,

I already facing these problem.
Those happen when the RBS or RRU restart. So, RRU will transmit into full power as the spec of PA. So it will damage the TPA.

The solution, I think is already in P6. But, if this happen U can ask SW patching from ELS.
Those patch function to limit or shut down the TPA when RRU restarting and increase power as setting incrementally, so will prevent the damage of RRU.

Hope help U.

BR//
JM

[ramy911us]

This is so simple....

your ASC Device (TMA) is simply fried,and to be exact your LNA is degraded,so i recommend you to replace the ASC.

BR//