PDU Session Release Request
To initiate the UE-requested PDU Session Release procedure, UE sends the PDU Session Release Request message with the 5GSM Cause IE to indicate the reason for releasing the PDU session.
The SMF supports the following causes in the PDU Session Release Request message.
Reject Cause / 5GSM Cause |
SMF Behavior |
---|---|
Cause #36 – regular deactivation |
The SMF retains the statistics based on the cause and continues with the Release procedure. |
Cause #41 – Semantic error in the TFT operation |
The SMF retains the statistics based on the cause and continues with the Release procedure. |
Cause #42 – Syntactical error in the TFT operation |
The SMF retains the statistics based on the cause and continues with the Release procedure. |
Cause #44 – Semantic errors in packet filter(s) |
The SMF retains the statistics based on the cause and continues with the Release procedure. |
Cause #45 – Syntactical errors in packet filter(s) |
The SMF retains the statistics based on the cause and continues with the Release procedure. |