Radio Link Failure
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Radio Link Failure This alarm is reported when the BTS detects that the radio link is faulty. Main Causes for this alarm: ?The abnormal release ratio of the radio channel exceeds the alarm threshold. ?The traffic volume is zero in the configured detection period. ?The BTS detects that the UL level and the DL level differ greatly. ?The channel type or channel status on the BSC side is inconsistent with that on the BTS side. We need to check the specifiq problem of the alarm. * If it is uplink downlink Imbalance then it is a hardware issue, we need to check the RX and TX cable(VSWR) and MRFU in site . We can check the performance(diversity) from M2000. * If it is LAPD link congestion, we need to interchange the E1 in site and also need to configure it from BSC. * If it is NO TRAFIC IN TRX then we need to change the MRFU in site * For RELEASE ABNORMAL,no solution found yet. |
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