3 Definitions of terms, symbols and abbreviations
24.5543GPPProximity-services (ProSe) in 5G System (5GS) protocol aspectsRelease 17Stage 3TS
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].
5G ProSe Direct Communication: A function that supports the communications between two or more UEs in proximity that are 5G ProSe-enabled, by means of user plane transmission using NR technology via a path not traversing any network node.
5G ProSe Direct Discovery: A function employed by a 5G ProSe-enabled UE to discover other 5G ProSe-enabled UEs in its vicinity based on direct radio transmissions between the two UEs with NR technology.
5G ProSe UE-to-network relay: A function employed by a 5G ProSe-enabled UE to support the communications between a 5G ProSe UE-to-network remote UE and DN.
5G ProSe layer-2 UE-to-network relay: A function employed by a 5G ProSe-enabled UE to support the communications between a 5G ProSe layer-2 UE-to-network remote UE and DN.
5G ProSe layer-3 UE-to-network relay: A function that supports the communications between a 5G ProSe layer-3 UE-to-network remote UE and DN.
5G ProSe UE-to-network relay UE: A 5G ProSe-enabled UE that provides functionality to support connectivity to the network for 5G ProSe remote UE(s).
5G ProSe layer-2 UE-to-network relay UE: A 5G ProSe-enabled UE that provides functionality to support connectivity to the network for 5G ProSe layer-2 remote UE(s) via layer-2 protocol.
5G ProSe layer-3 UE-to-network relay UE: A 5G ProSe-enabled UE that provides functionality to support connectivity to the network for 5G ProSe layer-3 remote UE(s) via layer-3 protocol.
5G ProSe layer-2 remote UE: A 5G ProSe-enabled UE that communicates with a DN via a 5G ProSe layer-2 UE-to-network relay UE.
5G ProSe layer-3 remote UE: A 5G ProSe-enabled UE that communicates with a DN via a 5G ProSe layer-3 UE-to-network relay UE.
Open 5G ProSe direct discovery: A 5G ProSe direct discovery that takes place without explicit permission from the 5G ProSe-enabled UE being discovered.
Restricted 5G ProSe direct discovery: A 5G ProSe direct discovery that only takes place with explicit permission from the 5G ProSe-enabled UE being discovered.
5G DDNMF CTF (ADF): Accounting Data Forwarding (ADF) function block of the Charging Trigger Function (CTF) in the 5G DDNMF.
Usage information report: Usage information related to one collection period.
Usage information report list: One or more usage information report(s) associated with the UE identity of a 5G ProSe-enabled UE.
For the purposes of the present document, the following term and definition given in TS 23.304 [2] apply:
5G ProSe-enabled UE
5G ProSe remote UE
Application layer ID
Application layer group ID
Destination layer-2 ID
Discovery entry ID
Discovery filter
Discovery query filter
Discovery response filter
Geographical area
Indirect network communication
Local PLMN
Member ID
Metadata index
Metadata index mask
Model A
Model B
Mode of communication
ProSe application code
ProSe application mask
ProSe application ID
ProSe application user ID
ProSe discovery UE ID
ProSe identifier
ProSe layer-2 group ID
ProSe query code
ProSe response code
ProSe restricted code
ProSe restricted code prefix
ProSe restricted code suffix
Relay service code
Restricted ProSe application user ID
Source layer-2 ID
NR Tx profile
User info ID
3.2 Abbreviations
For the purposes of the present document, the abbreviations given in 3GPP 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 3GPP TR 21.905 [1].
5G DDNMF 5G Direct Discovery Name Management Function
5G PKMF 5G ProSe Key Management Function
5G ProSe 5G Proximity-based Services
AA Authentication and Authorization
AKMA Authentication and Key Management for Applications
CP-PRUK Control Plane ProSe Remote User Key
CTF (ADF) Charging Trigger Function (Accounting Data Forwarding)
DN Data Network
DUCK Discovery User Confidentility Key
DUIK Discovery User Integrity Key
DUSK Discovery User Scrambling Key
FQDN Fully Qualified Domain Name
GBA Generic Bootstrapping Architecture
GFBR Guaranteed Flow Bit Rate
GPI GBA Push Information
LSB Least Significant 8 Bits
MSB Most Significant 8 Bits
MFBR Maximum Flow Bit Rate
MIC Message Integrity Check
MOBIKE IKEv2 Mobility and Multihoming Protocol
NAI Network Access Identifier
NCGI NG-RAN Cell Global ID
PC5 LINK-AMBR PC5 Link Aggregated Bit Rate
PDUID ProSe Discovery UE ID
PQI PC5 5QI
ProSeP 5G ProSe Policy
PSDK Public Safety Discovery Key
RPAUID Restricted ProSe Application User ID
RQI Reflective QoS Indication
RSC Relay Service Code
TTL Time-To-Live
UP-PRUK User Plane ProSe Remote User Key
URSP UE Route Selection Policy