PFCP Session Reporting Procedure
The UPF uses PFCP Session Reporting procedure to report information that is related to the PFCP session to the SMF (usage report IE). Once the threshold hits the volume, time or event measurement and sets the corresponding trigger for reporting, the message is sent to the SMF by the UPF.
The following call flow depicts the PFCP Session Reporting procedure.
Step | Description |
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1 |
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2 | The SMF responds with PFCP Session Modification Response with success or failure message. No failure handling is needed on the UPF. |
3 | The SMF interacts with the network function, which triggered this procedure. For instance, AMF or PCF. |