Section: 5.2.8.3.2 Nsmf_EventExposure_Notify service operation
Content: Service operation name: Nsmf_EventExposure_Notify Description: Report UE PDU Session related event(s) to the NF which has subscribed to the event report service. Input Required: Event ID, Notification Correlation Information, UE ID(s) (SUPI(s) and if available GPSI(s)), PDU Session ID(s), time stamp. SMF reports multiple PDU Sessions events when those happen at the same time and as indicated in the time stamp. The SMF reports the PDU Session ID, SUPI and if available GPSI(s) per each PDU Session event. Input, Optional: Event specific parameter list as described in clause 5.2.8.3.1, capability of supporting EAS IP replacement in 5GC. Output Required: Result Indication. Output, Optional: Redirection information. When the SMF detects the event subscribed by the NF consumer, the SMF reports the subscribed event together with the Notification Target Address (+ Notification Correlation ID) to the Event Receiving NF. The optional event specific parameter list provides the values that matched for generating the event notification. The parameter values to match are specified during the event subscription (see clause 5.2.8.3.3). See clause 4.3.6.3 for details on usage of this service operation toward Application Function. If the NF consumer is AMF and the result of the service operation fails, the AMF shall set corresponding cause value in result indication which can be used by the SMF for further action. If the related UE is not served by the AMF and the AMF knows which AMF is serving the UE, the AMF provides redirection information which can be used by the SMF to resend UE related message to the AMF that serves the UE. NOTE: In the case of UP plane path, as described in clause 4.3.6.2, this notification can be the result of an implicit subscription of the NEF/AF by the PCF as part of setting PCC rule(s) via the Npcf_SMPolicyControl service (see clause 5.2.5.4).