Systems and methods for measurement and reporting of average UL and DL delays and delay distributions for an NG-RAN and UPF, as well as gNB-DU DL latency, for the N3 and N9 interfaces, internal UPF delay, and between the PSA UPF and NG-RAN and between the PSA UPF and UE are described. For the UL and DL average delay and delay distributions, the measurements are split into subcounters per 5QI/QCI, S-NSSAI and/or DSCPs, with the delay distributions subcounters in bins with discrete delay ranges. The measurements aon the N3 interface delay are also differentiated between a PSA UPF and an I-UPF.