Content for TS 49.031 Word version: 17.0.0

4.1 DTAP-LE Messages 4.2 BSSMAP-LE Messages
...

1 Scope Word‑p. 8

The present document 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 43.059:

Lb interface (BSC-SMLC).
Lp interface (SMLC-SMLC).

The present document defines message formats and encoding for BSSAP-LE and the particular subsets of it that are applicable to each of the above interfaces. The present document also defines the support for BSSAP-LE message transfer on each of these interfaces using either ITU-T and ANSI versions of SS7 MTP or IETF M3UA/SCTP 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 24.008 and TS 48.008) on the Lb interface.

2 References Word‑p. 8

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.

[1]

TR 21.905: "Vocabulary for 3GPP Specifications".

[1a]

TS 23.032: "Universal Geographical Area Description (GAD)".

[2]

TS 43.059: "Functional Stage 2 Description of Location Services in GERAN".

[3]

TS 44.018: "Mobile radio interface layer 3 specification; Radio Resource Control Protocol".

[3a]

TS 24.008: "Mobile radio interface layer 3 specification; Core Network Protocols; Stage 3".

[4]

TS 44.031: "Location Services (LCS); Mobile Station (MS) - Serving Mobile Location Center (SMLC); Radio Resource LCS Protocol (RRLP)".

[5]

TS 44.071: "Location Services (LCS); Mobile radio interface layer 3 Location Services (LCS) specification".

[6]

TS 48.006: "Signaling transport mechanism specification for the Base Station Subsystem - Mobile-services Switching Centre (BSS - MSC) interface".

[7]

TS 48.008: "Mobile-services Switching Centre - Base Station System (MSC-BSS) interface; Layer 3 specification".

[8]

TS 48.031: "Location Services (LCS); Serving Mobile Location Center - Serving Mobile Location Center (SMLC - SMLC); SMLCPP specification".

[9]

TS 48.071: "Serving Mobile Location Center - Base Station Subsystem (SMLC-BSS) interface Layer 3 specification".

[10]

TS 29.002: "Mobile Application Part (MAP) specification".

[10a]

TS 23.003: "Numbering, addressing and identification".

[11]

ITU-T Recommendation Q.702: "Signalling data link".

[12]

ITU-T Recommendation Q.703: "Signalling link".

[13]

ITU-T Recommendation Q.704: "Signalling network functions and messages".

[14]

ITU-T Recommendation Q.707: "Testing and maintenance".

[15]

ITU-T Recommendation Q.711: "Functional description of the signalling connection control part".

[16]

ITU-T Recommendation Q.712: "Definition and function of signalling connection control part messages".

[17]

ITU-T Recommendation Q.713: "Signalling connection control part formats and codes".

[18]

ITU-T Recommendation Q.714: "Signalling connection control part procedures".

[19]

ANSI T1.111 (1996): "Signalling System Number 7 - Message Transfer Part".

[20]

ANSI T1.112 (1996): "Signalling System Number 7 (SS7) - Signalling Connection Control Part Functional Description".

[21]

TIA/EIA/IS-J-STD-036 (2000): "Wireless Enhanced Emergency Services".

[22]

TS 48.018: "General Packet Radio Service (GPRS); Base Station System (BSS) - Serving GPRS Support Node (SGSN); BSS GPRS Protocol (BSSGP)".

[23]

RFC 1661(07/1994), STD 51: "The Point-To-Point Protocol (PPP)".

[24]

RFC 1662(07/1994), STD 51: "PPP in HDLC-like Framing".

[25]

RFC 2507(02/1999): "IP header compression".

[26]

RFC 1990(07/1994): "The PPP Multilink Protocol (MP)".

[27]

RFC 2686(09/1999): "The Multi-Class Extension to Multi-Link PPP".

[28]

RFC 2509(02/1999): "IP Header Compression over PPP".

[29]

TS 29.202: "SS7 Signalling Transport in Core Network; Stage 3".

[30]

Galileo OS SIS ICD/D.0: "Galileo Open Service, Signal In Space Interface Control Document/Draft 0".

[31]

Global Navigation Satellite System GLONASS: Interface Control Document Version 5, 2002.

[32]

BDS-SIS-ICD-B1I-1.0: "BeiDou Navigation Satellite System Signal In Space Interface Control Document Open Service Signal B1I (Version 1.0)", December 2012.

3 Definitions, abbreviations and symbols Word‑p. 9

For the purposes of the present document, the definitions, symbols and abbreviations listed in TR 21.905 and TS 43.059 apply.

4 Definition of BSSAP-LE Word‑p. 9

BSSAP-LE is an extension to BSSAP that contains messages and parameters specific to the support of LCS. The following subsets of BSSAP-LE are defined: DTAP-LE, BSSMAP-LE.

4.1 DTAP-LE Messages Word‑p. 10

DTAP-LE messages are transfered between an SMLC and a Type A LMU and comprise the following individual messages:

REGISTER;
FACILITY;
RELEASE COMPLETE.

The content, encoding and certain procedures asssociated with DTAP-LE messages are defined in TS 44.071.

4.2 BSSMAP-LE Messages Word‑p. 10

BSSMAP-LE messages are transferred between a BSS and SMLC and comprise the following individual messages:

BSSMAP-LE Positioning Messages:

Perform Location Request;
Perform Location Response;
Perform Location Abort;
Perform Location Information.

BSSMAP-LE Information Messages:

Connection Oriented Information;
Connectionless Information.

BSSMAP-LE General Messages:

Reset;
Reset Acknowledge.

The content and encoding of BSSMAP-LE messages are defined in the present document.