What is the function of BTS.
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Answer Posted / tariqat ahmed
BTS has a set of transceivers to communicate with mobiles
in it’s area.
One BTS covers one cell. BTS transmits a BCH signal on one
of the channels, on time slot 0.
The BCH helps mobiles to identify the network.
The capacity of a cell depends upon the no of channels
loaded on BTS. Each RF channel is shared by 8 users in TDMA
mode.
A BTS connects to BSC through Abis interface, which is a 2
MB/s link.
A data rate at GSM air interface is 13KB/s. 4 channels of
13 KB/s map into a 64 KB/s channel before fitting into 2
MB/s data frame on Abis interface.
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