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Content for  TR 23.700-86  Word version:  18.0.0

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1 Scope  2 References  3 Definitions of terms and abbreviations  3.1 Terms  3.2 Abbreviations 
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1  Scope  p. 10

The present document is to study 5GC architecture enhancements to enable Ranging-based services and sidelink positioning for commercial, V2X and public safety use cases in in-coverage, partial coverage, and out-of-coverage of 5G network, which include:
  • Authorization and policy/parameter provisioning for a UE or a group of UEs;
  • Ranging device discovery and service operation procedures between two UEs, between one UE and multiple UEs or via the assistance of another UE;
  • Ranging and sidelink positioning service exposure to a UE or an Application Server who has requested the service.
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2  References  p. 10

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 22.855: "Study on Ranging-based Services".
[3]
TS 23.287: "Architecture enhancements for 5G System (5GS) to support Vehicle-to-Everything (V2X) services".
[4]
TS 23.304: "Proximity based Services (ProSe) in the 5G System (5GS)".
[5]
TS 22.261: "Service requirements for next generation new services and markets; Stage 1".
[6]
TR 38.845: "Study on scenarios and requirements of in-coverage, partial coverage, and out-of-coverage NR positioning use cases".
[7]
TS 22.186: "Enhancement of 3GPP support for V2X scenarios".
[8]
TS 38.300: "NR; NR and NG-RAN Overall Description; Stage 2".
[9]
TS 23.502: "Procedures for the 5G System (5GS); Stage 2".
[10]
TS 37.355: "LTE Positioning Protocol (LPP)".
[11]
TS 23.273: "5G System (5GS) Location Services (LCS)".
[12]
TS 23.222: "Common API Framework for 3GPP Northbound APIs".
[13]
TS 33.122: "Security aspects of Common API Framework (CAPIF) for 3GPP northbound APIs".
[14]
TS 23.501: " System Architecture for the 5G System; Stage 2".
[15]
TS 23.503: "Policy and charging control framework for the 5G System (5GS); Stage 2 ".
[16]
TS 38.305: "NG Radio Access Network (NG-RAN); Stage 2 functional specification of User Equipment (UE) positioning in NG-RAN".
[17]
TS 24.587: "Vehicle-to-Everything (V2X) services in 5G System (5GS); Stage 3".
[18]
TR 23.700-33: "Study on System enhancement for Proximity based Services (ProSe) in the 5G System (5GS); Phase 2".
[19]
TS 36.300: "Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall description; Stage 2".
[20]
TS 38.331: "NR; Radio Resource Control (RRC); Protocol specification".
[21]
TR 38.859: "Study on Expanded and Improved NR Positioning".
[22]
TS 23.303: "Proximity-based services (ProSe); Stage 2".
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3  Definitions of terms and abbreviations  p. 11

3.1  Terms  p. 11

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.
Application Layer ID:
An identifier identifying a Ranging/SL Positioning-enabled UE within the context of a specific application, is used by the SL Positioning Client UE, the application of the Target UE/SL Reference UE or the Application server to identify the target UE and the SL Reference UE in the service request.
Assistant UE:
A UE supporting Ranging/Sidelink Positioning between a SL Reference UE and a Target UE over PC5, when the direct Ranging/Sidelink positioning between the SL Reference UE and Target UE cannot be supported. The measurement/result of Ranging/Sidelink Positioning between the Assistant UE and the SL Reference UE and that between the Assistant UE and the Target UE are determined and used to derive the Ranging/Sidelink Positioning result between Target UE and SL Reference UE.
Located UE:
A SL Reference UE of which the location is known or is able to be known using Uu based positioning. A Located UE can be used to determine the location of a Target UE using Sidelink Positioning.
Network-assisted Operation:
Operation of Ranging/Sidelink Positioning with the involvement of 5GC NFs for the service request handling and result calculation.
Positioning:
A functionality, which detects a geographical location and optionally, velocity (of e.g. a mobile terminal).
Ranging
Refers to the determination of the distance between two UEs or more UEs and/or the direction of one UE (i.e. Target UE) from another UE (i.e. Reference UE) via PC5 interface.
Relative position:
An estimate of the UE position relative to other network elements or relative to other UEs.
SL Reference UE:
A UE, supporting positioning of target UE, e.g. by transmitting and/or receiving reference signals for positioning, providing positioning-related information, etc. using sidelink.
Sidelink Positioning:
Positioning UE using PC5 to obtain absolute position, relative position, or ranging information.
SL Positioning Client UE:
A third-party UE, other than SL Reference UE and Target UE, which initiates Ranging/Sidelink positioning service request on behalf of the application residing on it.
SL Positioning Server UE:
A UE offering method determination, assistant data distribution and/or location calculation functionalities and/or location calculation functionalities for Sidelink Positioning and Ranging based service. It interacts with other UEs over PC5 as necessary in order to determine Ranging/SL Position method, distribute assistant data and calculate the location of the Target UE. Target UE or SL Reference UE can act as SL Positioning Server UE if any of the functionalities is supported.
Target UE:
A UE whose distance, direction and/or position is measured with the support from one or multiple SL Reference UEs using Sidelink in the Ranging based service and Sidelink positioning.
UE-only Operation:
Operation of Ranging/Sidelink Positioning in which the service request handling and result calculation are performed by UE.
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3.2  Abbreviations  p. 12

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.
AS layer
Access Stratum layer
LOS
Line of Sight
ProSe
Proximity based Services
SL
Sidelink
V2X
Vehicle-to-Everything

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