My 3GPP abbreviation notes

My collection of 3GPP (and ETSI) abbreviation notes

Abbreviation	Meaning	Reference	Notes
3GPP	3rd Generation Partnership Project (3GPP)	3GPP
5GC	5G Core Network	23.501
5G DDNMF	5G Direct Discovery Name Management Function	23.501
5G LAN	5G Local Area Network	23.501
5GMM	5GS Mobility Management	24.501	5GMM is a NAS protocol defined in 24.501 that provides procedures for the control of mobility when the user equipment (UE) is using the NG radio access network (NG-RAN) and/or non-3GPP access network. The 5GMM protocol also provides control of security for the NAS protocols.
5GS	5G System	23.501
5GSM	5GS Session Management	24.501	5GSM is a NAS protocol defined in 24.501 that provides procedures for the handling of 5GS PDU sessions. Together with the bearer control provided by the access stratum, this protocol is used for the control of user-plane resources.
5G-AN	5G Access Network	23.501
5G-AN PDB	5G Access Network Packet Delay Budget	23.501
5G-EIR	5G-Equipment Identity Register	23.501
5G-GUTI	5G Globally Unique Temporary Identifier	23.501
5G-BRG	5G Broadband Residential Gateway	23.501
5G-CRG	5G Cable Residential Gateway	23.501
5G-RG	5G Residential Gateway	23.501
5G-S-TMSI	5G S-Temporary Mobile Subscription Identifier	23.501
5G AV	5G Authentication Vector	33.501
5G GM	5G Grand Master	23.501
5G HE AV	5G Home Environment Authentication Vector	33.501
5G NSWO	5G Non-Seamless WLAN Offload	23.501
5G SE AV	5G Serving Environment Authentication Vector	33.501
5G VN	5G Virtual Network	23.501
5QI	5G QoS Identifier	23.501
5U	5GS update	24.501
ABBA	Anti-Bidding down Between Architectures	33.501
ADRF	Analytics Data Repository Function	23.501
AEAD	Authenticated Encryption with Associated Data	55.301
AES	Advanced Encryption Standard	33.501
AF	Application Function	23.501
AKA	Authentication and Key Agreement	33.501
AKMA	Authentication and Key Management for Applications	23.501
AnLF	Analytics Logical Function	23.501
AN	Access Network	23.501
AMF	Access and Mobility Function	23.501
AMF (AUMF)	Authentication Management Field	33.501	I use full spelling or AUMF to disambiguate abbreviation from Access and Mobility Function
ARQ	Automatic Repeat ReQuest	21.905
ARPF	Authentication credential Repository and Processing Function	33.501
AS	Access Stratum	23.501	Between UE and RAN
ATSSS	Access Traffic Steering, Switching, Splitting	23.501
ATSSS-LL	ATSSS Low-Layer	23.501
AUSF	Authentication Server Function	23.501
AUTN	AUthentication TokeN	33.501
AV	Authentication Vector	33.501
AV'	transformed Authentication Vector	33.501
BAP	Backhaul Adaptation	33.501
BCCH	Broadcast Control Channel	38.300
BCH	Broadcast Channel	38.202
BH	Backhaul	33.501
BMCA	Best Master Clock Algorithm	23.501
BSF	Binding Support Function	23.501
CAG	Closed Access Group	23.501
CAPIF	Common API Framework for 3GPP northbound APIs	23.501
CC	Content of Communication	33.127
CCA	Client Credentials Assertion	33.501
CD-SSB	Cell-Defining Synchronization Signal and PBCH block	38.300	When an SSB is associated with an RMSI, the SSB is referred to as a Cell-Defining SSB (CD-SSB). A PCell is always associated to a CD-SSB located on the synchronization raster.
Cell-ID	Cell Identity	33.501	Cell-ID as used in TS 38.331
CH	Credentials Holder	23.501
CHF	Charging Function	23.501
CHO	Conditional Handover	33.501
CIoT	Cellular Internet of Things	33.501
cIPX	consumer's IPX	33.501
CK	Cipher Key	33.501
CKSRVCC	Cipher Key for Single Radio Voice Continuity	33.501
CM	Connection Management	24.007
CN	Core Network	23.501
CN PDB	Core Network Packet Delay Budget	23.501
CP	Control Plane	23.501
CPA	Conditional PSCell Addition	38.300
CPC	Conditional PSCell Change	38.300
cSEPP	consumer's SEPP	33.501
CTR	Counter (mode)	33.501
CU	Central Unit	33.501
DAPS	Dual Active Protocol Stacks	23.501
DCCF	Data Collection Coordination Function	23.501
DCS	Default Credentials Server	23.501
DL	Downlink	23.501
DMRS	Demodulation Reference Signal	38.300
DN	Data Network	23.501
DNAI	DN Access Identifier	23.501
DNN	Data Network Name	23.501
DRB	Data Radio Bearers	38.300
DRX	Discontinuous Reception	23.501
DSMIP	Dual Stack Mobile IP
DS-TT	Device-side TSN translator	23.501	Time Sensitive Networking?
DU	Distributed Unit	33.501
EAC	Early Admission Control	23.501
EAP	Extensible Authentication Protocol	33.501
EBI	EPS Bearer Identity	23.501	EPS is Evolved Packet System
EDT	Early Data Transmission	33.501
EHPLMN	Equivalent Home PLMN	21.905
EMSK	Extended Master Session Key	33.501
EMM	EPS Mobility Management	24.501
EN-DC	E-UTRA-NR Dual Connectivity	33.501
ENSI	External Network Slice Information	33.501
ePDG	evolved Packet Data Gateway	23.501
EPS	Evolved Packet System	33.501
EUI	Extended Unique Identifier	23.501
FAR	Forwarding Action Rule	23.501
FN-BRG	Fixed Network Broadband RG	23.501	RG for Residential Gateway
FN-CRG	Fixed Network Cable RG	23.501	RG for Residential Gateway
FN-RG	Fixed Network RG	23.501	RG for Residential Gateway
FQDN	Fully Qualified Domain Name	23.501
gNB	NR Node B	33.501
GBA	Generic Bootstrapping Architecture	23.501
GEO	Geostationary Orbit	23.501
GERAN	GSM EDGE Radio Access Network	3gpp.org
GFBR	Guaranteed Flow Bit Rate	23.501
GIN	Group ID for Network Selection	23.501
GMLC	Gateway Mobile Location Center	23.501
GMM	GPRS Mobility Management	24.008
GPRS	General Packet Radio Service	23.060
GPSI	Generic Public Subscription Identifier	23.501	GPSI is needed for addressing a 3GPP subscription in different data networks outside of the 3GPP system. The 3GPP system stores within the subscription data the association between the GPSI and the corresponding SUPI. GPSIs are public identifiers used both inside and outside of the 3GPP system. The GPSI is either an MSISDN or an External Identifier, see TS 23.003. If MSISDN is included in the subscription data, it shall be possible that the same MSISDN value is supported in both 5GS and EPS. NOTE: There is no implied 1-to-1 relationship between GPSI and SUPI.
GSM	Global System for Mobile communications	33.127
GUAMI	Globally Unique AMF Identifier	23.501	AMF for Access and Mobility Function
GUTI	Globally Unique Temporary UE Identity	33.501
HMTC	High-Performance Machine-Type Communications	23.501
HR	Home Routed	23.501	Roaming scenario
HRES	Hash RESponse	33.501
HXREX	Hash eXpected RESponse	33.501
IAB	Integrated access and backhaul	23.501
ICBM	Inter-Cell Beam Management	38.300
IK	Integrity Key	33.501
IKE	Internet Key Exchange	33.501
IKSRVCC	Integrity Key for Single Radio Voice Continuity	33.501
IMEI/TAC	IMEI Type Allocation Code	23.501
IMSI	International Mobile Subscriber Identity	33.127
IPUPS	Inter PLMN UP Security	23.501
IPX	IP exchange service	33.501
I-RNTI	Inactive RNTI	38.300
I-SMF	Intermediate SMF	23.501
I-UPF	Intermediate UPF	23.501
INT-RNTI	Interruption RNTI	38.300
IRI	Intercept Related Information	33.127
KSI	Key Set Identifier	33.501
KSISRVCC	Key Set Identifier for Single Radio Voice Continuity	33.501
LADN	Local Area Data Network	23.501
LBO	Local Break Out	23.501	Roaming scenario
LD	Lawful Disclosure	ETSI 103.120
LDID	Lawful Disclosure IDentifier	ETSI 103.280	LEA shall assign a unique LDID.
LEO	Low Earth Orbit	23.501
LI	Lawful Intercept	33.501
LI_HIQR	Lawful Interception Handover Interface Query Response	33.127
LI_XER	Lawful Interception Internal Interface Event Record	33.127
LI_XQR	Lawful Interception Internal Interface Query Response	33.127
LLC	Logical Link Control	24.007
LMF	Location Management Function	23.501
LoA	Level of Authorization	23.501
LPP	LTE Positioning Protocol	23.501
LRF	Location Management Function	23.501
LTE	Long Term Evolution	33.127
MAC	Message Authentication Code	24.501
MANO	Management and Orchestration
MBS	Multicast/Broadcast Service	23.501
MBSF	Multicast/Broadcast Service Function	23.501
MBSTF	Multicast/Broadcast Service Transport Function	23.501
MB-SMF	Multicast/Broadcast Session Management Function	23.501
MB-UPF	Multicast/Broadcast User Plane Function	23.501
MCX	Mission Critical Service	23.501
MDBV	Maximum Data Burst Volume	23.501
MDF	Mediation and Delivery Function	33.127
MeNB	Master eNB	33.501
ME	Mobile Equipment	21.905
MEO	Medium Earth Orbit	23.501
MFAF	Messaging Framework Adaptor Function	23.501
MFBR	Maximum Flow Bit Rate	23.501
MIB	Master Information Block		Referenced in 38.300
MICO	Mobile Initiated Connection Only	23.501
MINT	Minimization of Service Interruption	23.501
ML	Machine Learning	23.501
MM	Mobility Management	24.007
MN	Master Node	33.501
MO-EDT	Mobile Originated Early Data Transmission	33.501
MT-EDT	Mobile Terminated Early Data Transmission	33.501
MPS	Multimedia Priority Service	23.501
MPTCP	Multi-Path TCP Protocol	23.501
MR-DC	Multi-Radio Dual Connectivity	38.300	Further details of MR-DC operation, including Conditional PSCell Addition (CPA) and Conditional PSCell Change (CPC), can be found in TS 37.340.
MSK	Master Session Key	33.501
MTLF	Model Training Logical Function	23.501
N3IWF	Non-3GPP Inter-Working Function	23.501
N5CW	Non-5G-Capable over WLAN	23.501
N5GC	Non-5G Capable	24.501
NAI	Network Access Identifier	23.501
NAS	Non-Access Stratum	33.501	Between UE and Core Network
NCC	Next Hop Chaining Counter parameter	33.501
NCI	NR Cell ID	33.128
NDS	Network Domain Security	33.501
NEA	Encryption Algorithm for 5G	33.501
NEF	Network Exposure Function	23.501
NF	Network Function	23.501
NG	Next Generation	33.501
NG-RAN	5G (Next Generation) Radio Access Network	33.501
NG-C	NG Control Plane	38.300	Between NG-RAN node and AMF
NG-U	NG User Plane	38.300	Between NG-RAN and UPF
ng-eNB	Next Generation Evolved Node-B	33.501
ngKSI	Key Set Identifier in 5G	33.501
NGAP	Next Generation Application Protocol	23.501
NH	Next Hop	33.501
NIA	Integrity Algorithm for 5G	33.501
NID	Network identifier	23.501
NPN	Non-Public Network	23.501
NR	New Radio	23.501
NR-DC	NR-NR Dual Connectivity	33.501
NRF	Network Repository Function	23.501
NSAC	Network Slice Admission Control	23.501
NSACF	Network Slice Admission Control Function	23.501
NSAG	Network Slice AS Group	23.501
NSI ID	Network Slice Instance Identifier	23.501
NSSAA	Network Slice-Specific Authentication and Authorization	23.501
NSSAAF	Network Slice-specific and SNPN Authentication and Authorization Function	23.501
NSSAI	Network Slice Selection Assistance Information	23.501
NSSF	Network Slice Selection Function	23.501
NSSP	Network Slice Selection Policy	23.501
NSSRG	Network Slice Simultaneous Registration Group	23.501
NSWO	Non-Seamless WLAN offload	23.501
NSWOF	Non-seamless WLAN offload Function	23.501
NW-TT	Network-side TSN translator	23.501
NWDAF	Network Data Analytics Function	23.501
NWO	Network Operator	102 528
ONN	Onboarding Network	23.501
ON-SNPN	Onboarding Standalone Non-Public Network	23.501
PBCH	Physical Broadcast Channel	38.202
PCell	Primary Cell	38.300	See section 7.7
PCH	Paging Channel	38.202
PCF	Policy Control Function	23.501
PDB	Packet Delay Budget	23.501
PDCCH	Physical Downlink Control Channel	38.300
PDCP	Packet Data Convergence Protocol	38.300	The layer 2 of NR is split into the following sublayers: Medium Access Control (MAC), Radio Link Control (RLC), Packet Data Convergence Protocol (PDCP) and Service Data Adaptation Protocol (SDAP).
PDR	Packet Detection Rule	23.501
PDSCH	Physical Downlink Shared Channel	38.300
PDU	Protocol Data Unit	23.501
PDN	Packet Data Network	33.501
PEI	Permanent Equipment Identifier	23.501
PER	Packet Error Rate	23.501
PFD	Packet Flow Description	23.501
pIPX	producer's IPX	33.501
PMIP	Proxy Mobile IP
PNI-NPN	Public Network Integrated Non-Public Network	23.501
PPD	Paging Policy Differentiation	23.501
PPF	Paging Proceed Flag	23.501
PPI	Paging Policy Indicator	23.501
PRACH	Physical Random Access Channel	38.300
PRINS	PRotocol for N32 INterconnect Security	33.501
PSA	PDU Session Anchor	23.501
pSEPP	producer's SEPP	33.501
PSS	Primary Synchronization Signal	38.300
PTP	Precision Time Protocol	23.501
PUCCH	Physical Uplink Control Channel	38.300
PUR	Preconfigured Uplink Resource	33.501
PUSCH	Physical Uplink Shared Channel	38.300
PVS	Provisioning Server	23.501
QFI	QoS Flow Identifier	23.501
QoE	Quality of Experience	23.501
QoS	Quality of Service	33.501
RACH	Random Access Channel	38.300
RACS	Radio Capabilities Signalling optimization	23.501
(R)AN	(Radio) Access Network	23.501
RANAC	RAN-based Notification Area Code	38.300
RAND	RANDom number	???
RA-RNTI	Random Access RNTI	38.300
RB	NR Resource Block
RES	RESponse	33.501
RG	Residential Gateway	23.501
RIM	Remote Interference Management	23.501
RNA	RAN-based Notification Area	38.300
RNAU	RAN-based Notification Area Update	38.300
RNTI	Radio Network Temporary Identifier	38.300
RPLMN	Registered Public Land Mobile Network	21.905
RQA	Reflective QoS Attribute	23.501
RQI	Reflective QoS Indication	23.501
RR	Radio Resource	24.007
RRC	Radio Resource Control	38.331
RRM	Radio Resource Management
RSN	Redundancy Sequence Number	23.501
RSRP	Reference Signal Received Power	38.300
SA NR	Standalone New Radio	23.501
SBA	Service Based Architecture	23.501
SBI	Service Based Interface	23.501
SCell	Secondary Cell	38.300	See section 7.7. The configured set of serving cells for a UE always consists of one PCell and one or more SCells.
SCG	Secondary Cell Group	33.501
SCP	Service Communication Proxy	23.501	NFs and NF services can communicate directly, referred to as Direct Communication, or indirectly via the SCP, referred to as Indirect Communication. For more information on communication options, see Annex E and clauses under 6.3.1 and 7.1.2 of 23.501
SD	Slice Differentiator	23.501
SDT	Small Data Transmission	38.300
SEAF	Security Anchor Function	23.501
SEPP	Secure Edge Protection Proxy	23.501
SgNB	Secondary gNB	33.501
SGC	Service Gap Control	24.501
SIB	System Information Block	38.300
SIDF	Subscription Identifier De-concealing Function	33.501
SMC	Security Mode Command	33.501
SMF	Session Management Function	23.501
SMS	Short Message Service	21.905
SMSF	Short Message Service Function	23.501
SN	Sequence Number	23.501
SN	Secondary Node	33.501
SN Id	Serving Network Identifier	33.501
SNPN	Standalone Non-Public Network	23.501
SOR	Steering of Roaming	23.122
SPS	Semi-Persistent Scheduling	38.300
SRB	Signalling Radio Bearers	38.300	Radio bearers are categorized into two groups: data radio bearers (DRB) for user plane data and signalling radio bearers (SRB) for control plane data.
SS	Synchronization Signal	38.300
SSB	SS/PBCH block	38.300
SSC	Session and Service Continuity	23.501
SSCMSP	Session and Service Continuity Mode Selection Policy	23.501
SSS	Secondary Synchronization Signal	38.300
SST	Slice/Service Type	23.501
SUCI	Subscription Concealed Identifier	23.501
SUPI	Subscription Permanent Identifier	23.501
SV	Software Version	23.501
SvP	Service Provider	102 528
S-NSSAI	Single Network Slice Selection Assistance Information	23.501
SO-SNPN	Subscription Owner Standalone Non-Public Network	23.501
TA	Tracking Area	23.501
TAC	Tracking Area Code	38.300
TAI	Tracking Area Identity	23.501
TLS	Transport Layer Security	33.501
TNAN	Trusted Non-3GPP Access Network	23.501
TNAP	Trusted Non-3GPP Access Point	23.501
TNGF	Trusted Non-3GPP Gateway Function	23.501
TNL	Transport Network Layer	23.501
TNLA	Transport Network Layer Association	23.501
TSC	Time Sensitive Communication	23.501
TSCAI	TSC Assistance Information	23.501
TSCTSF	Time Sensitive Communication and Time Synchronization Function	23.501
TSN	Time Sensitive Networking	23.501
TSN GM	TSN Grand Master	23.501
TSP	Traffic Steering Policy	23.501
TT	TSN Translator	23.501
TWAP	Trusted WLAN Access Point	33.501
TWIF	Trusted WLAN Interworking Function	23.501
UAS NF	Uncrewed Aerial System Network Function	23.501
UCMF	UE radio Capability Management Function	23.501
UDM	Unified Data Management	23.501
UDR	Unified Data Repository	23.501
UDSF	Unstructured Data Storage Function	23.501
UE	User Equipment	33.501
UEA	UMTS Encryption Algorithm	33.501
UIA	UMTS Integrity Algorithm	33.501
UL	Uplink	23.501
ULR	Update Location Request	33.501
UL CL	Uplink Classifier	23.501
UMTS	Universal Mobile Telecommunication System	33.127
UP	User Plane	33.501
UPF	User Plane Function	23.501
URLLC	Ultra Reliable Low Latency Communication	23.501
URRP-AMF	UE Reachability Request Parameter for AMF	23.501
URSP	UE Route Selection Policy	23.501
USIM	Universal Subscriber Identity Module	33.501
VID	VLAN Identifier	23.501
VLAN	Virtual Local Area Network	23.501
W-5GAN	Wireline 5G Access Network	23.501
W-5GBAN	Wireline BBF Access Network	23.501
W-5GCAN	Wireline 5G Cable Access Network	23.501
W-AGF	Wireline Access Gateway Function	23.501
xIRI	LI_X2 IRI	33.127
XRES	eXpected RESponse	33.501

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