A.87 Monitoring of background data transfer policy negotiation and application

28.5523GPP5G performance measurementsManagement and orchestrationRelease 18TS

AF may need to negotiate the policies for future background data transfer with 5GS via NEF, before the UE’s PDU Session establishment. Per the request from AF, the NEF negotiates with H-PCF about the transfer policies for the future background data transfer. The transfer policies may contain a desired time window for the background data transfer, a reference to a charging rate for the time window, network area information, and optionally a maximum aggregated bitrate, as described in clause 6.1.2.4 of TS 23.503 [46].

The AF may apply the negotiated policies for a future PDU Session at some point.

The policies for the background data transfer have strong relevance to users’ experience, therefore the measurements are needed to monitor the performance of policy negotiation and application for background data transfer.