GSM architecture : Base Station Subsystem (BSS) (3/3)

GSM architecture : Base Station Subsystem (BSS)

The transcoder is the third element in the BSS and is needed to convert 64 kbps original
speech into a 16 kbps signal of speech description parameters to ensure a spectrum-efficient
modulation on the air interface. BTS, BSC and TC together form the Base Station Subsystem
(BSS).