N3IWF procedures (Authentication/PDU session)

Procedure: Registration, Authentication and Authorization

After the N3IWF selection, the UE proceeds with the registration, authentication and authorization procedures to access

the 5GCN, as shown in Figure 7.

Figure 7: Registration Procedure

 

 

Figure 4.12.2.2-1: Registration via untrusted non-3GPP access

 

 

Procedure: PDU Session Establishment

Figure 8 shows PDU session establishment for a UE accessing the 5GCN through the untrusted WLAN.

Figure 8: Session Establishment Procedure

 

Figure 4.12.5-1: PDU Session establishment via untrusted non-3GPP access

 

 

 

 

 

https://www.wipro.com/network-edge-providers/untrusted-non-3gpp-access-network-interworking-with-5g-core/