5G Functions Flashcards
1
Q
AMF
A
Access Management Function
Manages subscriber mobility.
UE to gNB N6 gNB AMF N1/N2 AMF SMF N11 AMF AUSF N12 AMF UDM N8 AMF PCF N7 AMF PCF N15
2
Q
SMF
A
Session Management Function
Manages setup of user sessions to various data networks
AMF SMF N11
SMF UPF N4
SMF UDM N10
SMF PCF N7
3
Q
AUSF
A
Authentication Server Function
Authenticates UE. Obtains authentication vectors from UDM.
N12 to AMF
4
Q
UDM
A
Unified Data Management Function
Frontend for UDR
5
Q
NEF
A
Network Exposure Function
6
Q
NRF
A
Network Repository Function
7
Q
PCF
A
Policy Control Function
8
Q
NSSF
A
Network Slice Selection Function
9
Q
UPF
A
User Plane Function
10
Q
gNB
A
gNodeB
Next Generation eNodeB
RAN
11
Q
5G Reference Points
A
N1: UE-AMF N2: gNB-AMF N3: gNB-UPF traffic only N4: SMF-UPF N5: PCF-AF N6: UPF-DN traffic only N7: PCF-SMF N8: UDM-AMF N9: UPF-UPF traffic only N10: UDM-SMF N1l: AMF-SMF N12: AMF-AUSF N13: UDM-AUSF N14: AMF-AMF N15: PCF-AMF N16: SMF-AMF N17: AMF-5G-EIR N22: AMF-NSSF N26: AMF-MME N33: NEF-AF NR: UE-gNB signaling & traffic Xn: gNB-gNB signaling & traffic X2: en-gNB-eNB signaling & traffic
