3GPP 23.501 v20.2.0 — the document's own text
5.45.4 Data rate monitoring
Taught in 14. What the network promises (The 5G system architecture, in depth).
The QoS Monitoring for data rate allows the measurement of the UL and/or DL data rate per QoS flow at the PSA UPF and it can be applied to a Non-GBR or GBR QoS flow. The data rate is measured over a monitoring averaging window with a standardized value.
The SMF may configure the UPF to perform and report QoS monitoring for data rates as described in clause 5.8.2.18. According to the QoS Monitoring request for UL and/or DL data rate from the SMF, the UPF is required to initiate data rate measurement for a QoS Flow and to report the measured data rate as instructed.