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full Contents for  TS 23.273  Word version:   16.3.0

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1  ScopeWord-p. 7
The present document specifies the stage 2 of the service-based architecture used for location services in the 5G system, and corresponding Network Functions (NFs), NF services and procedures, to meet the service requirements defined in TS 22.261 and TS 22.071.
Location Services specified in the present document include regulatory location services and commercial location services. The architecture and signalling procedures in NG-RAN are defined in TS 38.305.
2  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.
[1]  3GPP TR 21.905 "Vocabulary for 3GPP Specifications".
[2]  3GPP TS 22.071 "Technical Specification Group Systems Aspects; Location Services (LCS)".
[3]  3GPP TS 22.261 "Service requirements for next generation new services and markets; Stage 1".
[4]  3GPP TS 23.271 "Functional stage 2 description of Location Services (LCS)".
[5]  3GPP TS 43.059 "Functional Stage 2 description of Location Services in GERAN".
[6]  Void.
[7]  3GPP TS 36.305 "Stage 2 functional specification of User Equipment (UE) positioning in E-UTRAN".
[8]  3GPP TS 23.032 "Universal Geographical Area Description (GAD)".
[9]  3GPP TS 38.305 "Stage 2 functional specification of User Equipment (UE) positioning in NG-RAN".
[10]  3GPP TS 23.167 "IP Multimedia Subsystem (IMS) emergency sessions".
[11]  3GPP TS 24.501 "Non-Access-Stratum (NAS) protocol for 5G System (5GS); Stage 3".
[12]  3GPP TS 29.572 "5G System; Location Management Services; Stage 3".
[13]  OMA MLP TS: "Mobile Location Protocol", [].
[14]  OMA RLP TS: "Roaming Location Protocol", [].
[15]  3GPP TS 38.455 "NG-RAN; NR Positioning Protocol A (NRPPa)".
[16]  3GPP TS 29.518 "5G System; Access and Mobility Management Services; Stage 3".
[17]  3GPP TS 25.305 "Stage 2 functional specification of User Equipment (UE) positioning in UTRAN".
[18]  3GPP TS 23.501 "System Architecture for the 5G System; Stage 2".
[19]  3GPP TS 23.502 "Procedures for the 5G System; Stage 2".
[20]  3GPP TS 36.355 "Evolved Universal Terrestrial Radio Access (E-UTRA); LTE Positioning Protocol (LPP)".
[21]  3GPP TS 23.316 "Wireless and wireline convergence access support for the 5G System (5GS)".
[22]  ETSI ES 282 004: "Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); NGN Functional Architecture; Network Attachment Sub-System (NASS)".
[23]  ITU-T Recommendation E.164: "The international public telecommunication numbering plan".
[24]  3GPP TS 23.222 "Common Application Programming Interface (API) framework for 3GPP northbound APIs".
[25]  RFC 2396: "Uniform Resource Identifiers".
[26]  RFC 3261: "SIP: Session Initiation Protocol".
[27]  3GPP TS 23.228 "IP multimedia subsystem (IMS)".
[28]  3GPP TS 23.003 "Numbering, addressing and identification".
[29]  3GPP TS 29.002 "Mobile Application Part (MAP) specification".
[30]  3GPP TS 32.271 "Telecommunication management; Charging management; Location Services (LCS) charging".
[31]  3GPP TS 32.298 "Telecommunication management; Charging management; Charging Data Record (CDR) parameter description".
[32]  Void.
[33]  3GPP TS 29.571 "5G System; Common Data Types for Service Based Interfaces; Stage 3".
[34]  3GPP TS 29.171 "Location Services (LCS); LCS Application Protocol (LCS-AP) between the Mobile Management Entity (MME) and Evolved Serving Mobile Location Centre (E-SMLC); SLs interface".
[35]  3GPP TS 29.122 "T8 reference point for Northbound APIs".
3  Definitions and AbbreviationsWord-p. 8
3.1  Definitions
For the purposes of the present document, the terms and definitions given in TR 21.905 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905.
LCS Client:
entity that interacts with GMLC for the purpose of obtaining location information for one or more UEs. The LCS Client may reside in the UE.
For the purposes of the present document, the following terms and definitions given in TS 23.271 apply:
Call Related:
see TS 23.271.
see TS 23.271.
Current Location:
see TS 23.271.
Deferred location request:
see TS 23.271.
Immediate location request:
see TS 23.271.
Last Known Location:
see TS 23.271.
LCS (LoCation Services):
see TS 23.271.
Location Estimate:
see TS 23.271.
see TS 23.271.
Pseudonym mediation device:
Functionality that verifies pseudonyms to verinyms.
see TS 23.271.
Requestor Identity:
see TS 23.271.
Response Method:
for legacy LCS Client using the OMA MLP protocol. Detail see TS 23.271.
Target UE:
see TS 23.271.
see TS 23.271.
see TS 23.271.
3.2  AbbreviationsWord-p. 9
For the purposes of the present document, the abbreviations given in TR 21.905 and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in TR 21.905.
Access Point Name
APN Network Identifier
Early Data Transmission
Evolved Serving Mobile Location Centre
Gateway Mobile Location Centre
LoCation Services
Location Deferred Request
Location Management Function
LCS Privacy Indicator
Location Retrieval Function
Mobile Originated Location Request
Mobile Terminated Location Request
Network Induced Location Request
Pseudonym mediation device functionality
Privacy Override Indicator
Trusted Non-3GPP Access Network
Untrusted Non-3GPP Access Network
Visited GMLC

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