3GPP 24.501 v20.0.0 — the document's own text
6.3.1.3.2 Abnormal cases in the UE
Taught in 4. Inside TS 24.501, the document at the centre (CT1 — the group that writes what your phone says, overview).
The following abnormal cases can be identified:
- PDU session inactive for the received PDU session ID.
If the PDU session ID in the PDU SESSION AUTHENTICATION RESULT message belongs to any PDU session in state PDU SESSION INACTIVE in the UE, the UE shall send a 5GSM STATUS message with the 5GSM cause IE set to #43 "Invalid PDU session identity".
- Collision of UE-requested PDU session release procedure and a PDU EAP result message transport procedure.
When the UE receives a PDU SESSION AUTHENTICATION RESULT message during the UE-requested PDU session release procedure, and the PDU session indicated in PDU SESSION AUTHENTICATION RESULT message is the PDU session that the UE had requested to release, the UE shall ignore the PDU SESSION AUTHENTICATION RESULT message and proceed with the UE-requested PDU session release procedure.