3GPP 23.501 v20.2.0 — the document's own text
5.8.5.7 Usage Report generated by UPF
Taught in 13. Where the packets actually go (The 5G system architecture, in depth), 5. The connection, and what is promised on it (The 5G system architecture, overview).
The UPF sends the Usage Report to inform the SMF about the measurement of an active URR or about the detection of application traffic of an active Packet Detection Rule. For each URR, the Usage Report may be generated repeatedly, i.e. as long as any one of the valid event triggers applies. A final Usage Report is sent for a URR when it is no longer active, i.e. either the URR is removed or all the references to this URR in any of the Packet Detection Rules belonging to the N4 session.
The following attributes can be included:
Table 5.8.5.7-1: Attributes within Usage Report
| Attribute | Description | Comment |
|---|---|---|
| N4 Session ID | Uniquely identifies a session. | Identifies the N4 session associated to this Usage Report |
| Rule ID | Uniquely identifies the Packet Detection Rule or Usage Reporting Rule within a session which triggered the report. | Packet Detection Rule is only indicated when Reporting trigger is Start/stop of traffic detection.Usage Reporting Rule is indicated for all other Reporting triggers. |
| Reporting trigger | Identifies the trigger for the usage report. | Applicable values are:Start/stop of traffic detection with/without application instance identifier and deduced SDF filter reporting; Deletion of last PDR for a URR; Periodic measurement threshold reached; Volume/Time/Event measurement threshold reached; Immediate report requested; Measurement of incoming UL traffic; Measurement of discarded DL traffic; MAC address reporting in the UL traffic; reporting of unknown destination MAC/IP address; end marker packet has been received. |
| Start time | Provides the timestamp, in terms of absolute time, when the collection of the information provided within Usage-Information is started. | Not sent when Reporting trigger is Start/stop of traffic detection. |
| End time | Provides the timestamp, in terms of absolute time, when the information provided within Usage-Information is generated. | Not sent when Reporting trigger is Start/stop of traffic detection. |
| Measurement information | Defines the measured volume/time/events for this URR. | For details refer to clause 7.5.8.3 of TS 29.244 [65]. |
| Other information | Other events/information, e.g. related to reporting of UE MAC addresses. | For details refer to clause 7.5.8.3 of TS 29.244 [65]. |