Now Between BTS and BSC :
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Lets say One PCM is there.
BTS Can put 4 Air Interface TimeSlots ( 16 K) in one PCM TimeSlot (64k).
Got it…
So 42 AIR TS fixed in 11 PCM TS.
Ok add one more PCM TS For BCCH+SDDCH.(Let me be lavish)
So Total 12 PCM TS for One BTS with 2+2+2 Config.
Ok…
TBC…