HI Vijay and hardev
for every TRX or CU u have to have 2 timeslots of E1 i.e. 128 kbps.and in one TRX 8 subscr. can talk simulta. with full rate encoding but with half rate it will get double. but in each sector u will have to define BCCH and SDCCH it’ll take ur 16 kbps in that 128.
and 1 E! has 2048 kbps bandwidth. so u can easily calculate. for each configuration depending upon how many TRX are defined in that E1