SDCCH Call Drops
Formula to find SDCCH call drops:
call Drop rate SDCCH= (Call drop on SD/ Successful SD seizure + successful SD seizure signalling channel HO)*100
Factors that can effecting the SD call drops:
- Hardware Failure.
- Transmission fault.
- Inter and Intra-Network interference.
- Imbalance antenna coverage between UL/DL.
Hardware Failure
when TRx or combiner is become faulty then it will increase the call drops.
Transmission fault
Fluctuation in the transmission media can effect TCH Availability, it will definitely effect the network efficiency as well as it cause call drops
Inter and Intra-Network interference
one should try to reduce the interference it will cause call drops. trying to better the DL/UL Quality.
Solutions to reduce the SDCCH call drops.
check the Hardware
Check transmission Media
checking the interference and checking the repeaters we are able to reduce the call drops
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