School of Specs 24.501v20.0.0

3GPP 24.501 v20.0.0 — the document's own text

6.6.2.5 Abnormal cases on the network side

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 have been identified:

  • Collision of network-requested PDU session release procedure and remote UE report procedure:

If the SMF receives a REMOTE UE REPORT message during a network-requested PDU session release procedure, and the PDU session indicated in the PDU SESSION RELEASE COMMAND message is the PDU session ID that is in the REMOTE UE REPORT message, the SMF shall abort the remote UE report procedure and proceed with the network-requested PDU session release procedure.

  • PDU session inactive for the received PDU session identity:

If the PDU session ID in the REMOTE UE REPORT message belongs to any PDU session in state PDU SESSION INACTIVE in the SMF, the SMF shall send the 5GSM STATUS message to the UE with the 5GSM cause #43 "Invalid PDU session identity".