Gsm Вђ“ Architecture, Protocols And Services Access

Handles the radio link with mobile devices. It includes the Base Transceiver Station (BTS) , which contains the radio transmitters and receivers, and the Base Station Controller (BSC) , which manages radio resources and handovers for multiple BTSs.

Manages radio links and dedicated channel allocation. GSM – Architecture, Protocols and Services

Verifies user identities and provides security keys for encryption. Handles the radio link with mobile devices