Event-based reporting from a network function in a service based architecture network

A method for event-based reporting from a second network function (NF) to a first NF, the method being performed by the second NF, the method comprising:

• obtaining reporting instructions of events for a session with the first NF, wherein the reporting instructions comprise a list of triggers conditions for each of the events and information of Information Elements (IEs) whose values are cached by the first NF for the session, wherein each of the trigger conditions is associated with its own set of IEs, wherein the second NF is instructed to provide a report to the first NF when one of the trigger conditions is fulfilled at the second NF, the report comprising values of the set of IEs for the event that caused the trigger condition to be fulfilled, and wherein the second NF is instructed to include values in the report of those IEs cached by the first NF only if the values have changed compared to the cached values;
• detecting occurrence of one of the events which causes at least one of the trigger conditions to be fulfilled at the second NF;
• and as a result thereof:
• providing the report of the detected event in accordance with the reporting instructions.

A second network function (NF) for event-based reporting from the second NF to a first NF, the second NF comprising processing circuitry, the processing circuitry being configured to cause the second NF to:

• obtain reporting instructions of events for a session with the first NF, wherein the reporting instructions comprise a list of triggers conditions for each of the events and information of Information Elements (IEs) whose values are cached by the first NF for the session, wherein each of the trigger conditions is associated with its own set of IEs, wherein the second NF is instructed to provide a report to the first NF when one of the trigger conditions is fulfilled at the second NF, the report comprising values of the set of IEs for the event that caused the trigger condition to be fulfilled, and wherein the second NF is instructed to include values in the report of those IEs cached by the first NF only if the values have changed compared to the cached values;
• detect occurrence of one of the events which causes at least one of the trigger conditions to be fulfilled at the second NF;
• and as a result thereof:
• provide the report of the detected event in accordance with the reporting instructions.