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Content for  TR 33.847  Word version:  17.1.0

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1  ScopeWord‑p. 11

The present document studies the security and privacy aspects of proximity based services (including public safety and commercial proximity services) in the 5G system. It ensures that the security solutions are aligned with the work in TR 23.752, TS 22.278 and TS 22.261. The present document covers the following issues:
  • Security and privacy key issues, threats and potential requirements of proximity based services in 5G system.
  • Potential security solutions to cover these potential requirements.
Both roaming and non-roaming scenarios are considered.

2  ReferencesWord‑p. 11

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.
TR 21.905: "Vocabulary for 3GPP Specifications".
TR 23.752: "Study on system enhancement for Proximity based Services (ProSe) in the 5G System (5GS)".
TS 22.278: "Service requirements for the Evolved Packet System (EPS)".
TS 22.261: "Service requirements for the 5G system; Stage 1".
TS 23.303: "Proximity-based services (ProSe); Stage 2".
TS 33.303: "Proximity-based Services (ProSe); Security aspects".
TS 33.535: "Authentication and Key Management for Applications (AKMA) based on 3GPP credentials in the 5G System (5GS)".
TS 33.536: "Security aspects of 3GPP support for advanced Vehicle-to-Everything (V2X) services".
TS 23.287: "Architecture enhancements for 5G System (5GS) to support Vehicle-to-Everything (V2X) services".
TS 23.502: "Procedures for the 5G System (5GS); Stage 2".
RFC 8446:  "The Transport Layer Security (TLS) Protocol Version 1.3".
TS 33.220: "Generic Authentication Architecture (GAA), Generic Bootstrapping Architecture (GBA)".
TS 33.222: "Generic Authentication Architecture (GAA); Access to network application functions using Hypertext Transfer Protocol over Transport Layer Security (HTTPS)".
TS 33.501: "Security architecture and procedures for 5G system".
TS 23.501: "System Architecture for the 5G System".
TS 23.304: "Proximity based Services (ProSe) in the 5G System (5GS)".
TS 23.503: "Policy and charging control framework for the 5G System (5GS); Stage 2".
TS 33.223: "Generic Bootstrapping Architecture (GBA) Push function".
RFC 4082:  "Timed Efficient Stream Loss-Tolerant Authentication (TESLA): Multicast Source Authentication Transform Introduction".

3  Definitions of terms, symbols and abbreviationsWord‑p. 12

3.1  TermsWord‑p. 12

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.
5G ProSe UE-to-Network Relay:
A UE that provides functionality to support connectivity to the network for Remote UE(s).

3.2  SymbolsWord‑p. 12


3.3  AbbreviationsWord‑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.
5G Core
Proximity-based Services
5G Direct Discovery Name Management Function
Application Function
Access and Mobility Management Function
AS layer
Access Stratum layer
Next Generation
Next Generation RAN
NG Application Protocol
New Radio (5G)
Policy Control Function
Radio Access Network
Radio Access Technology
Remote UE Access via Relay UE
Unified Data Management

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