| 5G-EIR |
5G-Equipment
Identity Register |
| AF |
Application Function |
| AMF |
Access and Mobility
Management Function |
| AUSF |
Authentication Server
Function |
| DN |
Data Network, e.g.
operator services, Internet access or 3rd party services |
| NEF |
Network Exposure
Function |
| NRF |
NF Repository
Function |
| NSSF |
Network Slice
Selection Function |
| PCF |
Policy Control
Function |
| RAN |
(Radio) Access
Network |
| SEPP |
Security Edge
Protection Proxy |
| SMF |
Session Management
Function |
| UDM |
Unified Data
Management |
| UDR |
Unified Data
Repository |
| UDSF |
Unstructured Data
Storage Function |
| UE |
User Equipment |
| UPF |
User Plane Function |
