Thomas Kunz
Systems and Computer Engineering
26
Radio Subsystem
nThe Radio Subsystem (RSS) comprises the cellular mobile network up to the switching centers
nComponents
–Base
Station Subsystem (BSS):
nBase Transceiver Station (BTS): radio components
including sender, receiver,
antenna - if directed antennas are used one BTS can cover several cells
nBase Station Controller (BSC): switching between BTSs,
controlling BTSs, managing of
network resources, mapping of radio channels (Um) onto
terrestrial channels (A interface)
nBSS = BSC + sum(BTS) + interconnection
–Mobile
Stations (MS)