3GPP 24.501 v20.0.0 — the document's own text
5.4.7.3.1 Network slice-specific EAP result message transport procedure initiation
Taught in 4. Inside TS 24.501, the document at the centre (CT1 — the group that writes what your phone says, overview).
In order to initiate the network slice-specific EAP result message transport procedure, the AMF shall create a NETWORK SLICE-SPECIFIC AUTHENTICATION RESULT message.
The AMF shall set the EAP message IE of the NETWORK SLICE-SPECIFIC AUTHENTICATION RESULT message to the EAP-success or EAP-failure message provided by the AAA-S via the NSSAAF.
The AMF shall set the S-NSSAI IE of the NETWORK SLICE-SPECIFIC AUTHENTICATION RESULT message to the HPLMN S-NSSAI or the SNPN S-NSSAI to which the EAP-success or EAP-failure message is related.
The AMF shall send the NETWORK SLICE-SPECIFIC AUTHENTICATION RESULT message. The AMF shall retain the authentication result for the UE and the HPLMN S-NSSAI or the SNPN S-NSSAI while the UE is registered to the PLMN (see clause 5.15.10 in 3GPP TS 23.501 [8]).
Upon receipt of a NETWORK SLICE-SPECIFIC AUTHENTICATION RESULT message, the UE shall pass:
- the EAP-success or EAP-failure message received in the EAP message IE; and
- the HPLMN S-NSSAI or the SNPN S-NSSAI in the S-NSSAI IE;
to the upper layers. Apart from this action, the network slice-specific authentication and authorization procedure is transparent to the 5GMM layer of the UE.