Charging Information

The SMF collects the following charging information for converged online and offline charging:

  • Usage of access and core network resources: Describes the amount of data that is delivered to and forwarded from the UE.

  • Usage duration: Time interval from PDU Session Establishment to PDU Session Release.

  • User: UE information used by the user for a PDU session.

  • Data network: Data network address as determined by the DNN.

  • Start time: PDU session start time.

  • User location: HPLMN and VPLMN reporting area.

For service-data flows (flow-based charging), the SMF collects the following information:

  • PDU session description.

  • Data that are transmitted in uplink and downlink directions based on the rating-group information, or a combination of rating-group and service ID during volume-based charging.

  • Duration of service data flow based on the rating group, or a combination of rating-group and service ID during event-based charging.

  • Events and timestamps based on rating-group or based on a combination of the rating-group and service ID during event-based charging.

The SMF collects charging information for service data flows per UPF, within a PDU session, based on the rating-group or based on a combination of rating-group and service ID.