Content for TS 23.586 Word version: 18.5.0
1 Scope
2 References
3 Definitions of terms and abbreviations
3.1 Terms
3.2 Abbreviations
4 Architecture model and concepts
4.1 General concept
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1 Scope p. 7
The present document specifies the stage 2 of the Ranging based services and Sidelink positioning in 5G System for commercial, V2X and public safety use cases in in-coverage, partial coverage, and out-of-coverage of 5G network using 5G NR PC5 RAT.
Radio aspects of Ranging based services and Sidelink positioning in 5GS are defined in TS 38.355 and TS 38.305.
Security aspects of Ranging based services and Sidelink positioning in 5GS are defined in TS 33.533.
2 References p. 7
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]
TS 23.501: "System architecture for the 5G System (5GS)".
[3]
TS 23.502: "Procedures for the 5G System (5GS)".
[4]
TS 23.503: "Policy and charging control framework for the 5G System (5GS); Stage 2".
[5]
TS 38.305: "NG Radio Access Network (NG-RAN); Stage 2 functional specification of User Equipment (UE) positioning in NG-RAN".
[6]
TS 23.287: "Architecture enhancements for 5G System (5GS) to support Vehicle-to-Everything (V2X) services".
[7]
TS 23.304: "Proximity based Services (ProSe) in the 5G System (5GS)".
[8]
TS 23.273: "5G System (5GS) Location Services (LCS); Stage 2".
[9]
TS 37.355: "LTE Positioning Protocol (LPP)".
[10]
TS 23.222: "Common API Framework for 3GPP Northbound APIs".
[11]
TS 33.122: "Security aspects of Common API Framework (CAPIF) for 3GPP northbound APIs".
[12]
TS 38.355: "NR; Sidelink Positioning Protocol (SLPP); Protocol Specification".
[13]
TS 33.533: "Security aspects of ranging based services and Sidelink positioning".
[14]
TS 23.032: "Universal Geographical Area Description (GAD)".
[15]
TS 38.300: "NR; NR and NG-RAN Overall Description; Stage 2".
[16]
TS 24.080: "Supplementary services specification; Formats and coding".
[17]
TS 24.514: "Ranging based services and sidelink positioning in 5G system (5GS); Stage 3".
3 Definitions of terms and abbreviations p. 8
3.1 Terms p. 8
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.
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-based Operation:
Operation of Ranging/Sidelink Positioning with the involvement of 5GC NFs for the service request handling and result calculation.
Network-assisted Operation:
Operation of Ranging/Sidelink Positioning with the involvement of 5GC NFs for the service request handling and assisting UE for the 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. SL Reference UE) via PC5 interface.
Ranging/SL Positioning Application Identifier:
A globally unique identifier identifying a specific Ranging/SL Positioning application, which can be mapped to a V2X service type or a ProSe identifier.
Relative position:
An estimate of the UE position relative to other network elements or relative to other UEs.
Relative velocity:
An estimate of the UE velocity relative to another UE.
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. location calculation, SL-PRS configuration coordination and/or Located UE selection 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.
User Info ID:
The User Info ID is configured for Ranging/SL Positioning UE Discovery based on the policy of the HPLMN or via the Ranging/SL Positioning application server that allocates it. The definition of values of User Info ID is out of scope of this specification.
Application Layer ID:
An identifier identifying a Ranging/Sidelink Positioning-enabled UE within the context of a specific application. The format of this identifier is outside the scope of 3GPP.
3.2 Abbreviations 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.
LPP
LTE Positioning Protocol
RSPP
Ranging/SL Positioning Protocol
SLPP
Sidelink Positioning Protocol
4 Architecture model and concepts p. 9
4.1 General concept p. 9
Ranging based service provides the distance between two UEs or more UEs and/or the direction of one UE (i.e. Target UE) from another UE (i.e. SL Reference UE) via PC5 operations.
Sidelink Positioning provides absolute location, relative position, or Ranging information of a UE by using PC5 for the positioning. A Located UE can be used to determine the absolute location of a Target UE using Sidelink Positioning.
The operation of Ranging/Sidelink Positioning can be performed with Network-assisted Operation, Network-based Operation or UE-only Operation:
- In the Network-based Operation, 5GC NF(s) is involved for the service request handling and result calculation.
- In the UE-only Operation, the service request handling and result calculation are performed by UE.
- In the Network-assisted Operation, 5GC NF(s) is involved for the service request handling and assist UE for the result calculation.
