UE-Requested PDU Session Modification Call Flow
This section describes the call flow of the UE-requested PDU session modification.

Step | Description | ||
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1 |
The UE sends an "Always-on PDU Session Requested" IE in the PDU Session Modification Request message. |
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2 |
The SMF checks the DNN profile to determine whether the always-on support is enabled. |
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3 |
The SMF includes "Always-on PDU Session Indication" in the PDU Session Modification Command when any one of the following is true:
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4 |
The SMF does not include the "Always-on PDU Session Indication" only when both these conditions are true:
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