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3GPP Network Element Functions

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5G-EIR
5G-Equipment Identity Register
→  see it  here
→  N5g-eir SBI

5G-BRG
5G Broadband Residential Gateway
5G-CRG
5G Cable Residential Gateway
5G-RG
5G Residential Gateway
→  see it  here

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A
AAA Proxy/Server
Authentication, Authorization and Accounting Proxy/Server
→  see it  here

ABMF
Account Balance Management Function
→  see it  here

Acc IF
Accounting Interworking Function
AF
Application Function
→  see it  here
→  Naf SBI

AFE
Application Front End
AMF
Access and Mobility Management Function
→  see it  here
→  Namf SBI

ANDSF
Access Network Discovery and Selection Function
→  see it  here

AS
Application Server
→  see it  here

ATCF
Access Transfer Control Function
→  see it  here
→  TS 23.237 (5.3.4)

ATGW
Access Transfer Gateway
→  see it  here
→  TS 23.237 (5.3.5)

AuC
Authentication Center
→  see it  here

AUSF
Authentication Server Function
→  see it  here
→  Nausf SBI

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B
BBERF
Bearer Binding and Event Reporting Function
→  see it  here

BD
Billing Domain
→  see it  here

BGCF
Breakout Gateway Control Function
→  see it  here

BM‑SC
Broadcast-Multicast Service Centre
→  see it  here

BPCF
Broadband Policy Control Function
→  see it  here

BSC
Base Station Controller
→  see it  here

BSF
Binding Support Function
→  Nbsf SBI

BSF
Bootstrapping Server Function
→  see it  here

BSS
Base Station System
→  see it  here

BTS
Base Transceiver Station
→  see it  here

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C
CBC
Cell Broadcast Centre
→  TS 23.041

CDF
Charging Data Function
→  see it  here

CGF
Charging Gateway Function
→  see it  here

CHF
Charging Function
→  see it  here
→  Nchf SBI

CSCF
Call Session Control Function
→  see it  here

C-SGN
CIoT Serving Gateway Node
→  see it  here

CS-MGW
Circuit Switched - Media GateWay
→  see it  here

CSS
CSG (Closed Subscriber Group) Subscriber Server
→  see it  here

CTF
Charging Trigger Function
→  see it  here

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E
EATF
Emergency Access Transfer Function
EBCF
Event Based Charging Function
→  see it  here

E-CSCF
Emergency - Call Session Control Function
→  see it  here
→  TS 23.167 (6.2.2)

EIR
Equipment Identity Register
→  see it  here

eNB (eNodeB)
E-UTRAN Node B
→  see it  here

ePDG
evolved Packet Data Gateway
→  see it  here

E-SMLC
Evolved - Serving Mobile Location Centre
→  see it  here

E-UTRAN
Evolved - UTRAN
→  see it  here

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F
FN-RG
Fixed Network Residential Gateway
→  see it  here

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G
GANC
Generic Access Network Controller
GCR
Group Call Register
GCS AS
Group Communication Service Application Server
→  see it  here

GGSN
Gateway GPRS Support Node
→  see it  here

GLR
Gateway Location Register
→  see it  here

GMLC
Gateway Mobile Location Centre
→  see it  here

GMSC
Gateway Mobile-services Switching Centre
→  see it  here

gNB
new generation (5G) NodeB
→  see it  here

gNB-CU
gNB Central Unit
→  see it  here

gNB-CU-CP
gNB-CU-Control Plane
→  see it  here

gNB-CU-UP
gNB-CU-User Plane
→  see it  here

gNB-DU
gNB Distributed Unit
→  see it  here

gprsSSF
GPRS Service Switching Function
→  see it  here

gsmSCF
GSM Service Control Function
→  see it  here

gsmSSF
GSM Service Switching Function
→  see it  here

gsmSRF
GSM Specialised Resource Function
→  see it  here

GUP Server
Generic User Profile Server
→  see it  here

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H
HLR
Home Location Register
→  see it  here

HNB
Home NodeB
→  see it  here

HNB-GW
Home NodeB - GateWay
→  see it  here

HRPD-AN
cdma2000® High Rate Packet Data - Access Network
HSGW
cdma2000® HRPD Serving GateWay
HSS
Home Subscriber Server
→  see it  here

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I
IBCF
Interconnection Border Control Function
→  see it  here

I-CSCF
Interrogating - Call Session Control Function
→  see it  here

ICS UE
IMS Centralized Services capable User Equipment
→  see it  here

IM-GSN
InterMediate - GPRS Serving Node
→  see it  here

IM-MSC
InterMediate - Mobile-services Switching Centre
→  see it  here

IMS
IP Multimedia Subsystem
→  see it  here

IMS-AGW
IP Multimedia Subsystem - Access GateWay
→  see it  here

IMS-MGW
IP Multimedia Subsystem - Media GateWay
→  see it  here

I-NEF
Intermediate NEF
→  see it  here

IP-SM-GW
IP - Short Message - GateWay
→  see it  here

I-SMF
Intermediate SMF
→  see it  here

IWK-SCEF
InterWorKing Service Capability Exposure Function
→  see it  here

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L
LMF
Location Management Function
→  see it  here

LMU
Location Measurement Unit
→  see it  here

LRF
Location Retrieval Function
→  see it  here

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M
MBMS-GW
Multimedia Broadcast / Multicast Service GateWay
→  see it  here

MCE
Multi-cell/multicast Coordination Entity
→  see it  here

MGCF
Media Gateway Control Function
→  see it  here

MME
Mobility Management Entity
→  see it  here

MRB
Media Resource Broker
→  see it  here

MRFC
Multimedia Resource Function Controller
→  see it  here

MRFP
Multimedia Resource Function Processor
→  see it  here

MS
Mobile Station
MSC / MSC-S
Mobile-services Switching Centre - Server
→  see it  here

MTC-AAA
Machine Type Communications - Authentication, Authorization and Accounting
→  see it  here

MTC-IWF
Machine Type Communications - InterWorking Function
→  see it  here

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N
N3AN
Non-3GPP Access Network
→  see it  here

N3IWF
Non-3GPP InterWorking Function
→  see it  here

N5CW-UE
Non-5G-Capable over WLAN UE
→  see it  here

NAF
Network Application Function
→  see it  here

NB (NodeB)
UTRAN NodeB
→  see it  here

NE
Network Element
generic name

NEF
Network Exposure Function
→  see it  here
→  Nnef SBI

NF
Network Function
→  see it  here

ng-eNB
new generation (5G) evolved NodeB
→  see it  here

NPDB
Number Portability DataBase
→  TS 23.066

NRF
Network Repository Function
→  see it  here
→  Nnrf SBI

NSSF
Network Slice Selection Function
→  see it  here
→  Nnssf SBI

NWDAF
Network Data Analytics Function
→  see it  here
→  Nnwdaf SBI

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O
OFCS
OFfline Charging System
→  see it  here

OCF
Online Charging Function
→  see it  here

OCS
Online Charging System
→  see it  here

Top

P
PC
Protocol Converter
→  see it  here

PCEF
Policy and Charging Enforcement Function
→  see it  here

PCF
Policy Control Function
→  see it  here
→  Npcf SBI

PCRF
Proxy - Call Session Control Function
→  see it  here

P-CSCF
Proxy - Call Session Control Function
→  see it  here

PDN-GW (P-GW)
Packet Data Network - GateWay
→  see it  here

PFDF
Packet Flow Description Function
→  see it  here

PMD
Pseudonym Mediation Device
→  see it  here

PPR
Privacy Profile Register
→  see it  here

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R
RAF
Repository Access Function
→  see it  here

RCAF
RAN Congestion Awareness Function
→  see it  here

RF
Rating Function
→  see it  here

RNC
Radio Network Controller
→  see it  here

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S
SAS
Stand-Alone SMLC
→  see it  here

SBCF
Session Based Charging Function
→  see it  here

SCC-AS
Service Centralization and Continuity - Application Server
→  see it  here

SCEF
Service Capability Exposure Function
→  see it  here

S-CSCF
Serving - Call Session Control Function
→  see it  here

SCP
Service Communication Proxy
→  see it  here

SCS
Services Capability Server
→  see it  here

SEG
SEcurity Gateway
→  see it  here

SEPP
Security Edge Protection Proxy
→  see it  here

SGSN
Serving GPRS Support Node
→  see it  here

SGW
Signalling GateWay
S-GW
Serving - GateWay
→  see it  here

SLF
Subscription Locator Function
→  see it  here

SME
Short Message Entity
→  see it  here

SMF
Session Management Function
→  see it  here
→  Nsmf SBI

SMLC
Serving Mobile Location Center
→  see it  here

SMSF
Short Message Service Function
→  see it  here
→  Nsmsf SBI

SMS-GMSC
Short Message Service - Gateway Mobile-services Switching Centre
→  see it  here

SMS-IWMSC
Short Message Service - InterWorking Mobile-services Switching Centre
→  see it  here

SMS-SC
Short Message Service - Service Centre
→  see it  here

SPR
Subscription Profile Repository
→  see it  here

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T
TDF
Traffic Detection Function
→  see it  here

TNAP
Trusted Non-3GPP Access Point
→  see it  here

TNGF
Trusted Non-3GPP Gateway Function
→  see it  here

TrGW
Transition GateWay
→  see it  here

TSSF
Traffic Steering Support Function
→  see it  here

TWAP
Trusted WLAN Access Point
→  see it  here

TWIF
Trusted WLAN Interworking Function
→  see it  here

Top

U
UCMF
UE radio Capability Management Function
→  Nucmf SBI

UDM
Unified Data Management
→  see it  here
→  Nudm SBI

UDR
Unified Data Repository
→  see it  here
→  Nudr SBI

UDSF
Unstructured Data Storage Function
→  see it  here
→  Nudsf SBI

UE
User Equipment
UPF
User Plane Function
→  see it  here

UTRAN
Universal Terrestrial Radio Access Network
→  see it  here

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V
VLR
Visitor Location Register
→  see it  here

Top

W
W-AGF
Wireline Access Gateway Function
→  see it  here
→  TS 23.316

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