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Content for  TS 24.514  Word version:  18.0.0

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1 Scope  2 References  3 Definitions of terms, symbols and abbreviations  3.1 Terms  3.2 Abbreviations  4 General description 
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1  Scope  p. 9

The present document specifies the protocols for ranging based service and sidelink positioning in 5G system as specified in TS 23.586 for the following aspects:
  1. provisioning of configuration information for ranging and sidelink positioning service;
  2. ranging and sidelink positioning UE discovery; and
  3. ranging and sidelink positioning communication, including the communication among UEs and the communication between UE and LMF. The support of ranging and sidelink positioning protocol (RSPP) transport is defined as part of the ranging and sidelink positioning communication.
The present document defines the associated procedures for the aspects listed above, and also defines the message format, message contents, error handling and system parameters applied by the protocols for ranging based service and sidelink positioning in 5GS.
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2  References  p. 9

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".
[2]
TR 23.586: " Ranging based services and Sidelink Positioning ".
[3]
TS 24.501: "Non-Access-Stratum (NAS) protocol for 5G System (5GS); Stage 3".
[4]
TS 24.587: "Vehicle-to-Everything (V2X) services in 5G System (5GS); Protocol aspects; Stage 3".
[5]
TS 33.533: "Security aspects of ranging based services and sidelink positioning".
[6]
TS 24.554: "Proximity-services (ProSe) in 5G System (5GS) protocol aspects".
[7]
ITU-T Recommendation E.212: "The international identification plan for public networks and subscriptions", 2016-09-23.
[8]
RFC 4122:  "A Universally Unique IDentifier (UUID) URN Namespace".
[9]
ISO TS 17419 ITS-AID AssignedNumbers: http://standards.iso.org/iso/ts/17419/TS17419%20Assigned%20Numbers/TS17419_ITS-AID_AssignedNumbers.pdf.
[10]
ISO/IEC 10118-3:2018: "IT Security techniques - Hash-functions - Part 3: Dedicated hash-functions".
[11]
TS 23.273: "5G System (5GS) Location Services (LCS); Stage 2".
[12]
TS 38.355: "NR; Sidelink Positioning Protocol (SLPP); Protocol Specification".
[13]
RFC 9110:  "HTTP Semantics".
[14]
RFC 9112:  "HTTP/1.1".
[15]
TS 24.526: "UE policies for 5G System (5GS); Stage 3".
[16]
TS 23.032: "Universal Geographical Area Description (GAD)".
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3  Definitions of terms, symbols and abbreviations  p. 10

3.1  Terms  p. 10

For the purposes of the present document, the terms 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.
For the purposes of the present document, the following terms and definitions given in TS 23.586 apply:
Located UE
Network-assisted operation
Network-based operation
Positioning
Ranging
Relative position
Relative velocity
SL reference UE
Sidelink positioning
SL positioning client UE
SL positioning server UE
Target UE
UE-only operation
User info ID
Application layer ID
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3.2  Abbreviations  p. 10

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.
MO-LR
Mobile Originated Location Request
MT-LR
Mobile Terminated Location Request
RSLPP
Ranging and sidelink positioning policy
RSPP
Ranging and sidelink positioning protocol
SLPP
Sidelink positioning protocol
SLPKMF
SideLink Positioning Key Management Function
SL-MO-LR
Sidelink Mobile Originating Location Request
SL-MT-LR
Sidelink Mobile Terminating Location Request
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4  General description  p. 10

Any UE supporting ranging and sidelink positioning, e.g. target UE, reference UE, sidelink positioning server UE, supports a ranging and sidelink positioning (RSP) layer. The RSP layer handles service requests received from application layer to control the ranging and sidelink positioning operation.
The RSP layer supports the following functionalities:
  1. Provisioning of configuration information and authorization for ranging and sidelink positioning;
  2. UE discovery and selection; and
  3. Ranging and sidelink positioning communication between UEs or between the UE and the LMF.
Transport of ranging and sidelink positioning protocol (RSPP) payload over PC5-U is supported by the ranging and sidelink positioning communication between UEs over PC5.
The above functions are applicable for both public safety UE and commercial UEs.
The security aspects for 5G ranging and sidelink positioning features are specified in TS 33.533.
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