3 Definitions of terms, symbols and abbreviations

33.5033GPPRelease 17Security Aspects of Proximity based Services (ProSe) in the 5G System (5GS)TS

3.1 Terms

For the purposes of the present document, the terms given in 3GPP TR 21.905 [1] and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in 3GPP TR 21.905 [1].

For the purposes of the present document, the following terms given in 3GPP TS 23.304 [2] apply:

5G ProSe Direct Communication

5G ProSe Direct Discover

5G ProSe-enabled UE

5G ProSe Remote UE

5G ProSe UE-to-Network Relay

Direct Network Communication

Discovery Filter

Discovery Query Filter

Discovery Response Filter

Indirect Network Communication

Mode of communication

Model A

Model B

Open ProSe Discovery

ProSe Application Code

ProSe Application ID

ProSe Application Mask

ProSe Query Code

ProSe Response Code

ProSe Restricted Code

Restricted ProSe Application User ID

Restricted ProSe Discovery

3.2 Symbols

Void.

3.3 Abbreviations

For the purposes of the present document, the abbreviations given in TR 21.905 [1] 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 [1].

5G DDNMF 5G Direct Discovery Name Management Function

5G PKMF 5G ProSe Key Management Function

CP-PRUK Control Plane ProSe Remote User Key

AF Application Function

AKMA Authentication and Key Management for Applications

AV Authentication Vector

BSF Bootstrapping Server Function

CP Control Plane

DCR Direct Communication Request

DUCK Discovery User Confidentiality Key

DUIK Discovery User Integrity Key

DUSK Discovery User Scrambling Key

GBA Generic Bootstrapping Architecture

GPI GBA Push Info

GPS Global Positioning System

MIC Message Integrity Check

NAI Network Access Identifier

NITZ Network Identity and Time Zone

NRPEK NR PC5 Encryption Key

NRPIK NR PC5 Integrity Key

NTP Network Time Protocol

PAnF Prose Anchor Function

ProSe Proximity-based Services

UP-PRUK User Plane Prose Remote User Key

RPAUID Restricted ProSe Application User ID

RSC Relay Service Code

SBI Service Based Interface

UP User Plane

UTC Universal Time Coordinated