Abbreviations for 5G (3GPP Specifications)

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Abbreviation	Description
(R)AN	(Radio) Access Network
4G-GUTI	4G-Globally Unique Temporary Identifier
5G AV	5G Authentication Vector
5G HE AV	5G Home Environment Authentication Vector
5G SE AV	5G Serving Environment Authentication Vector
5G-AN	5G Access Network
5G-EIR	5G-Equipment Identity Register
5G-GUTI	5G Globally Unique Temporary Identifier
5G-S-TMSI	5G S-Temporary Mobile Subscription Identifier
5G-TMSI	5G Temporary Mobile Subscription Identifier
5GC	5G Core Network
5GCN	5G Core Network
5GMM	5GS Mobility Management
5GS	5G System
5GSM	5GS Session Management
5QI	5G QoS Identifier
ABBA	Anti-Bidding down Between Architectures
AEAD	Authenticated Encryption with Associated Data
AEF	API Exposing Function
AES	Advanced Encryption Standard
AF	Application Function
AKA	Authentication and Key Agreement
ALS	Application Layer Security
AMBR	Aggregate Maximum Bit Rate
AMF	API Management Function
AP	Application Protocol
APF	API Publishing Function
API	Application Programming Interface
ARPF	Authentication credential Repository and Processing Function
AS	Application Server
ASP	Application Service Provider
AUSF	Authentication Server Function
AUTN	AUthentication TokeN
AV''	transformed Authentication Vector
BDT	Background Data Transfer
BSF	Binding Support Function
CAPIF	Common API Framework
CCF	CAPIF Core Function
CCS	Converged Charging System
Cell-ID	Cell Identity as used in TS 38.331 [22]
CGI	Cell Global Identifier
CHF	Charging Function
cIPX	consumer''s IPX
CM	Connection Management
CMAS	Commercial Mobile Alert Service
CP	Communication Pattern
cSEPP	consumer''s SEPP
CTF	Charging Trigger Function
CTR	Counter (mode)
CTS	Charging Trigger Function
CU	Central Unit
DEI	Drop Eligible Indicator
DL	Downlink
DN	Data Network
DNAI	DN Access Identifier
DNN	Data Network Name
DRA	Diameter Routing Agent
DRX	Discontinuous Reception
DU	Distributed Unit
E-UTRA	Evolved Universal Terrestrial Radio Access
E-UTRAN	Evolved Universal Terrestrial Radio Access Network
EAP	Extensible Authentication Protocol
EAP-AKA''	Improved Extensible Authentication Protocol method for 3rd generation Authentication and Key Agreement
EBI	EPS Bearer Identity
EIR	Equipment Identity Register
EMM	EPS Mobility Management
EMSK	Extended Master Session Key
EPC	Evolved Packet Core Network
EPD	Extended Protocol Discriminator
ePDG	evolved Packet Data Gateway
EPS	Evolved Packet System
ESM	EPS Session Management
ETWS	Earthquake and Tsunami Warning System
F1-C	F1 Control plane interface
F1-U	F1 User plane interface
F1AP	F1 Application Protocol
FAR	Forwarding Action Rule
FDD	Frequency Division Duplex
FQDN	Fully Qualified Domain Name
GAD	Universal Geographical Area Description
GFBR	Guaranteed Flow Bit Rate
GMLC	Gateway Mobile Location Centre
gNB	NR Node B
GPSI	Generic Public Subscription Identifier
GTP-U	GPRS Tunnelling Protocol
GUAMI	Globally Unique AMF Identifier
GUTI	Globally Unique Temporary UE Identity
H-PCF	PCF in the HPLMN
HR	Home Routed
HRES	Hash RESponse
HRPD	High Rate Packet Data
HTTP	Hypertext Transfer Protocol
HXRES	Hash eXpected RESponse
IKE	Internet Key Exchange
IMEISV	International Mobile station Equipment Identity and Software Version number
IP	Internet Protocol
IPX	IP exchange service
JSON	JavaScript Object Notation
KSI	Key Set Identifier
LADN	Local Area Data Network
LBO	Local Break Out (roaming)
LI	Lawful Intercept
LMF	Location Management Function
LPP	LTE Positioning Protocol
LRF	Location Retrieval Function
MAC	Message Authentication Code
MCS	Mission Critical Service
MCX	Mission Critical Service
MDBV	Maximum Data Burst Volume
MFBR	Maximum Flow Bit Rate
MICO	Mobile Initiated Connection Only
MM	Mobility Management
MN	Master Node
MPS	Multimedia Priority Service
MR-DC	Multi-Radio Dual Connectivity
MSK	Master Session Key
N3AN	Non-3GPP access network
N3IWF	Non-3GPP InterWorking Function
NAI	Network Access Identifier
NAS	Non-Access Stratum
NDS	Network Domain Security
NEA	Encryption Algorithm for 5G
NEF	Network Exposure Function
NF	Network Function
NG	Next Generation
ng-eNB	Next Generation Evolved Node-B
NG-RAN	Next Generation - Radio Access Network
NGAP	Next Generation Application Protocol
ngKSI	Key Set Identifier in 5G
NIA	Integrity Algorithm for 5G
NR	New Radio
NR-DC	NR-NR Dual Connectivity
NRAS	New Radio Access Stratum
NRF	Network Repository Function
NRPPa	NR Positioning Protocol A
NSCI	New Security Context Indicator
NSI ID	Network Slice Instance Identifier
NSSAI	Network Slice Selection Assistance Information
NSSF	Network Slice Selection Function
NSSP	Network Slice Selection Policy
NWDAF	Network Data Analytics Function
O&M	Operation and Maintenance
OTDOA	Observed Time Difference of Arrival
PCC	Policy and Charging Control
PCF	Policy Control Function
PCP	Priority Code Point
PCRF	Policy and Charging Rule Function
PDN	Packet Data Network
PDR	Packet Detection Rule
PEI	Permanent Equipment Identifier
PER	Packet Error Rate
PFD	Packet Flow Description
PFDF	Packet Flow Description Function
pIPX	producer''s IPX
PPD	Paging Policy Differentiation
PPF	Paging Proceed Flag
PPI	Paging Policy Indicator
PRA	Presence Reporting Area
PSA	PDU Session Anchor
PSAP	Public Safety Answering Point
pSEPP	producer''s SEPP
PWS	Public Warning System
QBC	QoS flow Based Charging
QFI	QoS Flow Identifier
QoE	Quality of Experience
QoS	Quality of Service
QRI	QoS Rule Identifier
RAT	Radio Access Type
RES	RESponse
REST	Representational State Transfer
RET	Remote Electrical Tilting
RFSP	RAT Frequency Selection Priority
RNL	Radio Network Layer
RQA	Reflective QoS Attribute
RQI	Reflective QoS Indication
RRC	Radio Resource Control
RTCP	Real Time Control Protocol
S-NG-RAN n	Secondary NG-RAN node
S-NSSAI	Single Network Slice Selection Assistance Information
SA	Security Association
SA NR	Standalone New Radio
SAP	Service Access Point
SARI	Service Area Restriction Information
SBA	Service Based Architecture
SBI	Service Based Interface
SCEF	Service Capability Exposure Function
SCG	Secondary Cell Group
SCS	Service Capability Server
SCTP	Stream Control Transmission Protocol
SD	Slice Differentiator
SDF	Service Data Flow
SEAF	SEcurity Anchor Function
SEG	Security Gateway
SEPP	Security Edge Protection Proxy
SFN	System Frame Number
SIDF	Subscription Identifier De-concealing Function
SM	Session Management
SMC	Security Mode Command
SMF	Session Management Function
SMP	SBI Message Priority
SMS	Short Message Service
SMSF	Short Message Service Function
SN	Sequence Number
SN Id	Serving Network Identifier
SNN	Serving Network Name
SoR	Steering of Roaming
SSC	Session and Service Continuity
SSCMSP	Session and Service Continuity Mode Selection Policy
SST	Slice/Service Type
SUCI	Subscription Concealed Identifier
SUPI	Subscription Permanent Identifier
TA	Tracking Area
TAC	Tracking Area Code
TAI	Tracking Area Identity
TCP	Transmission Control Protocol
TDD	Time Division Duplex
TDM	Time Division Multiplexing
TLS	Transport Layer Security
TMA	Tower Mounted Amplifier
TNL	Transport Network Layer
TNLA	Transport Network Layer Association
TSP	Traffic Steering Policy
UDM	Unified Data Management
UDR	Unified Data Repository
UDSF	Unstructured Data Storage Function
UE	User Equipment
UEA	UMTS Encryption Algorithm
UIA	UMTS Integrity Algorithm
UL	Uplink
UL CL	Uplink Classifier
ULR	Update Location Request
UP	User Plane
UPF	User Plane Function
UPSC	UE policy section code
UPSI	UE Policy Section Identifier
URI	Uniform Resource Identifier
URRP-AMF	UE Reachability Request Parameter for AMF
URSP	UE Route Selection Policy
USIM	Universal Subscriber Identity Module
V-PCF	Visited Policy Control Function
VID	VLAN Identifier
VLAN	Virtual Local Area Network
XRES	eXpected RESponse