BSC: |
The Base Station Controller is part of the BSS and
interconnects a number of BTS's to the Network Switching Subsystem (NSS). The BTS's are
connected to the BSC via the Abis-interface while a variable number of A-trunks connects a
BSC to the MSC. Note that between BSC and MSC there is usually the TRAU. The general architecture of a BSC is illustrated in the figure below. Important Functions of the BSC: The main function of the BSC is to relieve the MSC from most radio-related control functions that are required to operate a GSM network. Therefore, the functions of the BSC are as follows:
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