Within the BSS, the user- and signalling data is transported over a series of interfaces. The A interface connects the Mobile Services Switching Center (MSC) with the Transcoder TC.
The A-ter interface connects the Transcoder with the Base Station Controller (BSC). The A-bis interface connects the BSC with the Base Transceiver Station (BTS). Finally, the data is transmitted to the mobile station via the air interface Um.
Негізгі бет GSM: BSS (Base Station Subsystem) Interfaces
Пікірлер: 12