Periodic Registration with Authentication Call Flow
This section describes the Periodic Registration with Authentication call flow.

Step |
Description |
---|---|
1 |
Periodic Registration with Authentication UE registered with the network and it’s in CONNECTED mode. |
2 |
The AMF sends the Context Release Command to the gNB. |
3 |
The AMF receives the Context Release Complete from the gNB. |
4 |
When the UE moves to IDLE state, a periodic timer started and the UE sends the Periodic Registration Request to the AMF. |
5 |
Authentication data exchanged between the AMF and the AUSF. |
6 |
The AMF sends the Authentication Request to the UE. |
7 |
The AMF receives the Authentication Response from the UE. |
8 |
The AMF sends the Security Mode Command to the UE. |
9 |
The AMF receives the Security Mode Complete Command from the UE. |
10 |
The AMF sends the Registration Accept to the AMF. |