5G Tutorial
5G Introduction
5G Network Function
5G Network Function Service
5G Definitions
5G Concepts
Architecture Reference
Data Storage Architectures
Non-3GPP Access
Non-3GPP Access Reference Points
Network Analytics architecture
Network Access Control
Http Status Codes
Http Custom Headers
Common Data Types
Service Based Architecture
Network Functions
Reference Points
Reference Points
Protocol Errors
Http Mandatory Headers
AMF Function
AMF Functional Description
AMF Specifications
AMF Services
SMF Function
SMF Functional Description
SMF Specifications
SMF Services
UPF Function
UPF Functional Description
PCF Function
PCF Functional Description
PCF Specifications
NEF Function
NEF Functional Description
NEF Specifications
NRF Function
NRF Functional Description
NRF Specifications
UDM Function
UDM Functional Description
UDM Specifications
AUSF Function
AUSF Functional Description
AUSF Specifications
N3IWF Function
N3IWF Function Description
Application Function
Application Functional Description
UDR Function
UDR Functional Description
UDR Specifications
UDSF Function
UDSF Functional Description
SMSF Function
SMSF Functional Description
SMSF Specifications
NSSF Function
NSSF Functional Description
NSSF Specifications
5G-EIR Function
5G-EIR Functional Description
5G-EIR Specifications
LMF Function
LMF Functional Description
LMF Specifications
SEPP Function
SEPP Functional Description
NWDAF Function
NWDAF Functional Description
NWDAF Specifications
Data Types

5G Network Function

A Network Function is a 3GPP defined processing function in a network for 5G, which has defined functional behaviour and 3GPP defined interfaces.

A 5G Network Function can be a software instance running on dedicated hardware, or can be deployed in virtualised platform, e.g on cloud.

5G System architecture consists of the following network functions (NF)

Access and Mobility Management Function (AMF)
Session Management Function (SMF)
User Plane Function (UPF)
Policy Control Function (PCF)
Network Exposure Function (NEF)
Network Repository Function (NRF)
Unified Data Management (UDM)
Authentication Server Function (AUSF)
Non-3GPP InterWorking Function Functional Description (N3IWF)
Application Function (AF)
Unified Data Repository (UDR)
Unstructured Data Storage Function (UDSF)
Short Message Service Function (SMSF)
Network Slice Selection Function (NSSF)
5G-Equipment Identity Register (5G-EIR)
Location Management Function (LMF)
Security Edge Protection Proxy (SEPP)
Network Data Analytics Function (NWDAF)


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