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Reply To: NOKIA – FLEXI BTS (7745 ALARM ID)

#61188
Dinendran
Guest

Reasons for Alarm
Hardware Issues:
BTS unit hardware failures (TRX, BB2F,WCxA,DVxA)

Crossed feeder cables.

Bad SMA cable , bad feeder quality or their improper connectivity.

RSSI values on the main and diversity paths are differing a lot.

RF Issues:

BCCH Frequency used in MAL list

Some segments in the network using same BCCH Frequency

Value of TSC parameter is same as BCC value

High Interference caused in the network

BSC/Network Issues:
LAPD message distribution problem due to unused (floating) TRX signaling links on the BCSU concerned

Telecom links overloading the BCSU

Repeated Transmission Failures