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TS 09.31 (GERAN2)
Location Services (LCS) – Base Station System Application Part LCS Extension (BSSAP-LE)

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(P) GSM Rel-99 v8.7.1    2004/05    48 p.
(P) GSM Rel-98 v7.8.0    2004/05    49 p.

Rapporteur:  ANDERSEN, Niels Peter Skov
Descendant(s):  TS 49.031    
See also:  LCS-related TS/TR    

This TS specifies procedures and information coding that are needed to define and support the BSSAP LCS Extension (BSSAP-LE). The BSSAP-LE message set is applicable to the following GSM interfaces defined in TS 03.71:
  • Lb interface (BSC-SMLC).
  • Ls interface (MSC-SMLC).
  • Lp interface (SMLC-SMLC).
This TS defines message formats and encoding for BSSAP-LE and the particular subsets of it that are applicable to each of the above interfaces. This TS also defines the support for BSSAP-LE message transfer on each of these interfaces using CCITT and ANSI versions of SS7 MTP and SCCP. Additional requirements for the above interfaces that are applicable to BSSAP-LE are also defined - e.g. usage of BSSAP (as defined in TS 04.08 and TS 08.08) on the Lb interface.


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(part 1 of 3)



1   Scope   PDF-p. 7
2   References
3   Definitions, abbreviations and symbols   PDF-p. 8
4   Definition of BSSAP-LE
5   Procedures applicable to use of BSSAP-LE   PDF-p. 9
6   Usage of BSSAP-LE and BSSAP on the Lb Interface   PDF-p. 17
7   Use of BSSAP-LE on the Ls Interface   PDF-p. 20
8   Use of BSSAP-LE on the Lp Interface

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