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Content for  TS 48.058  Word version:  16.0.0

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1  ScopeWord‑p. 8

The present document specifies the general structure of layer 3 and traffic management procedures and messages used on the A-bis interface to support signalling procedures as defined in TS 24.008 and TS 44.018. Support for Location Services (LCS) related signalling, as defined in 3GPP TS 23.071 [2a], is also included. 3GPP TS 23.071 [2a] identifies new A-bis signalling to support BTS-embedded Type B LMUs as well as standalone, Type B LMUs. The standalone Type B LMU supports the layer 1 and 2 signalling for the A-bis as well as the Location Service message defined in the present document.
The use and general aspects of the Base Station Controller (BSC) to Base Station Transceiver (BTS) interface (the A-bis interface) are given in TS 48.051.
Network management procedures and messages for the A-bis interface are defined in 3GPP TS 08.59.
The functional split between BSC and BTS is defined in TS 48.052. The procedures and messages required to support this split are defined in detail in the present document.

1.1  References

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.
TR 21.905: "Vocabulary for 3GPP Specifications".
TS 43.020: "Security related network functions".
TS 23.071: "Location Services; Functional description - Stage 2".
→ to date, withdrawn by 3GPP
TS 44.004: "Layer 1 General requirements".
TS 44.005: "Data Link (DL) layer General aspects".
TS 44.006: "Mobile Station - Base Station System (MS - BSS) interface Data Link (DL) layer specification".
TS 24.008: "Mobile radio interface layer 3 specification; Core Network Protocols; Stage 3".
TS 44.012: "Short Message Service Cell Broadcast (SMSCB) support on the mobile radio interface".
TS 44.071: "Mobile radio interface layer 3 Location Services (LCS) specification".
TS 45.002: "Multiplexing and multiple access on the radio path".
TS 45.005: "Radio transmission and reception".
TS 45.008: "Radio subsystem link control".
TS 45.009: "Link Adaptation".
TS 45.010: "Radio subsystem synchronization".
TS 48.006: "Signaling transport specification mechanism for the Base Station System - Mobile-services Switching Centre (BSS - MSC) interface".
TS 48.008: "Mobile-services Switching Centre - Base Station System (MSC-BSS) interface; Layer 3 specification".
TS 48.051: "Base Station Controller - Base Transceiver Station (BSC - BTS) interface; General aspects".
TS 48.052: "Base Station Controller - Base Transceiver Station (BSC - BTS) interface; Interface principles".
TS 48.056: "Base Station Controller - Base Transceiver Station (BSC - BTS) interface; Layer 2 specification".
TS 26.103: "Speech Codec List for GSM and UMTS".
TS 44.018: "Radio Resource Control Protocol".

1.2  AbbreviationsWord‑p. 9

For the purposes of the present document, the abbreviations defined in TR 21.905 apply.

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