ETSI TS 145 010 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.
Digital cellular telecommunications system (Phase 2) (GSM); Transmission planning aspects of the speech service in the GSM Public Land Mobile Network (PLMN) system (GSM 03.50 version 4.6.1)
Universal Mobile Telecommunications System (UMTS); LTE; 5G; Telecommunication management; Generic Network Resource Model (NRM) Integration Reference Point (IRP); Solution Set (SS) definitions (3GPP TS 28.623 version 16.6.0 Release 16)
Universal Mobile Telecommunications System (UMTS); LTE; Transparent end-to-end Packet-switched Streaming service (PSS); General description (3GPP TS 26.233 version 15.0.0 Release 15)
Information technology. Software measurement. Functional size measurement. Part 2: Conformity evaluation of software size measurement methods to ISO/IEC 14143-1:1998.