A.65 Monitoring of one way delay between PSA UPF and UE

28.5523GPP5G performance measurementsManagement and orchestrationRelease 18TS

The end to end DL/UL delay in 5G networks between UE and PSA UPF has direct impact to users’ experience for some types of services (e.g., URLLC). In case the PSA UPF and NG-RAN are time synchronised, the DL/UL delay between PSA UPF and UE can be measured at PSA UPF.

The measurements on the DL/UL delay between PSA UPF and NE can be used to evaluate the user plane delay performance in 5G networks and users’ experience.