Usage Monitoring Activation Call Flow
This section describes the Usage Monitoring Activation call flow.
| Step | Description |
|---|---|
| 1 |
PCF sends the list of Usage Monitoring data with thresholds to be monitored and association of the thresholds to either Session or PCC rule level. |
| 2 |
SMF creates the URR for each monitoring data and associates it to the corresponding PDRs. |
| 3 |
SMF sends Create or Update URR and links the URR with the corresponding PDR in PFCP Session Establishment or Modification request. |
| 4 |
UPF activates the monitoring on the received URR. |
| 5 |
UPF sends the response to SMF with the corresponding cause code. |