Feature Description

UPF supports usage monitoring control over the existing N4 interface to report usage thresholds that are provided from PCF over the N7 interface through SMF for both 4G and 5G sessions. UPF reports the usage threshold breach to SMF through Session Report Request and SMF sends the data to PCF. UPF supports the modification of usage monitoring parameters, such as Total Volume, Uplink Volume, or Downlink Volume thresholds and the disabling of usage monitoring based on non-reception of usage monitoring threshold or related triggers from PCF.