08.513GPPBase Station Controller - Base Tranceiver Station (BSC-BTS) Interface General AspectsTS
The present document is an introduction to the 08.5x – 08.6x series of 3GPP Technical Specifications and deals with the definition of the base station controller (BSC) to base transceiver station (BTS) interface defined inside the base station system (BSS) for the GSM system. These Technical Specifications define the basic interface with some identified options requiring further elaboration. The BSC-BTS interface is mandatory within GSM only if the BSC and the BTS are not colocated.
The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
- References are either specific (identified by date of publication, edition number, version number, etc.) or non‑specific.
- For a specific reference, subsequent revisions do not apply.
- For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.
 3GPP TS 01.04: "Abbreviations and acronyms".
 3GPP TS 03.50: "Transmission planning aspects of the speech service in the GSM Public Land Mobile Network (PLMN) system".
 3GPP TS 08.08: "Mobile Switching Centre – Base Station System (MSC – BSS) interface Layer 3 specification".
 3GPP TS 08.52: "Base Station Controller – Base Transceiver Station (BSC – BTS) interface Interface principles".
 3GPP TS 08.54: "Base Station Controller – Base Transceiver Station (BSC – BTS) interface Layer 1 structure of physical circuits".
 3GPP TS 08.56: "Base Station Controller – Base Transceiver Station (BSC – BTS) interface Layer 2 specification".
 3GPP TS 08.58: "Base Station Controller – Base Transceiver Station (BSC – BTS) interface Layer 3 specification".
 3GPP TS 08.60: "Inband control of remote transcoders and rate adaptors".
 3GPP TS 08.61: "Inband control of remote transcoders and rate adaptors (half rate)".
 3GPP TS 12.21: "Digital cellular telecommunications system (Phase 2+); Network Management (NM) procedures and message on the A-bis interface".
 CCITT Recommendation Q.920: "ISDN user-network interface data link layer – General aspects".
 CCITT Recommendation Q.921: "ISDN user-network interface – Data link layer specification".
1.3 Definitions and abbreviations
Abbreviations used in the present document are listed in 3GPP TS 01.04.