Digital cellular telecommunications system (Phase 2+) (GSM); GSM/EDGE Radio subsystem synchronization (V13.3.0; 3GPP TS 45.010 version 13.3.0 Release 13)
The present document defines the requirements for synchronization on the radio sub-system of the digital cellular telecommunications systems GSM. However@ it does not define the synchronization algorithms to be used in the Base Transceiver Station (BTS)@ CTS Fixed Part (CTS-FP) and Mobile Station (MS). These are up to the manufacturer to specify.