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.
5GS
5G System
5GC
5G Core
AApF
AKMA Application Function
AAuF
AKMA Authentication Function
ABBA
Anti-Bidding down Between Architectures
AKA
Authentication and Key Agreement
AKAF
AKMA Anchor Function
AKMA
Authentication and Key Management for Applications
AKMA AF
AKMA Application Function
AKRS
AKMA Key Repository Service
AMF
Access and Mobility Management Function
AP
Application Processor
APDU
Application Protocol Data Unit
ARPF
Authentication credential Repository and Processing Function
AUSF
Authentication Server Function
AUTN
AUthentication TokeN
AV
Authentication Vector
BEST
Battery Efficient Security for very low Throughput Machine Type Communication (MTC) devices
BSF
Bootstrapping Server Function
CK
Cipher Key
CoAP
Constrained Application Protocol
DoS
Denial of Service
EAP
Extensible Authentication Protocol
EAPoL
EAP over LANs
EMSK
Extended Master Session
KeyEPS
Evolved Packet System
FQDN
Fully Qualified Domain Name
GBA
Generic Bootstrapping Architecture
GAA
Generic Authentication Architecture
GUTI
Globally Unique Temporary UE Identity
GPSI
Generic Public Subscription Identifier
HPLMN
Home Public Land Mobile Network
HRES
Hash RESponse
HSS
Home Subscriber Server
HTTP
HyperText Transfer Protocol
HXRES
Hash eXpected RESponse
IK
Integrity Key
KDF
Key Derivation Function
ME
Mobile Equipment
MME
Mobility Management Entity
MQTT
Message Queuing Telemetry Transport
ngKSI
Key Set Identifier in 5G
NAF
Network Application Function
NAI
Network Access Identifier
NAS
Non Access Stratum
NEF
Network Exposure Function
NF
Network Function
OBU
On Board Unit
PANA
Protocol for Carrying Authentication for Network Access
PDCP
Packet Data Convergence Protocol
PLMN
Public Land Mobile Network
RES
RESponse
SBA
Service Based Architecture
SE
Secure Element
SEAF
SEcurity Anchor Function
SoR
Steering of Roaming
SUCI
SUbscription Concealed Identifier
SUPI
SUbscription Permanent Identifier
UDM
Unified Data Management
UE
User Equipment
UICC
Universal Integrated Circuit Card
UMTS
Universal Mobile Telecommunications System
USIM
Universal Subscriber Identity Module
UPF
User Plane Function
XRES
eXpected RESponse