3GPP 23.501 v20.2.0 — the document's own text
5.7.7.1 General
Taught in 14. What the network promises (The 5G system architecture, in depth), 23. Very fast, very reliable, very picky (The 5G system architecture, in depth), 5. The connection, and what is promised on it (The 5G system architecture, overview).
PDU Set QoS Parameters are used to support PDU Set based QoS Handling in the 5G-AN.
The following PDU Set QoS Parameters are specified:
1. PDU Set Delay Budget (PSDB).
2. PDU Set Error Rate (PSER).
3. PDU Set Integrated Handling Information (PSIHI).
At least one of the following shall be sent to the NG-RAN/N3IWF/TNGF/W-AGF to enable PDU Set based QoS Handling: 1) a PSIHI and/or 2) both PSDB and PSER. For a given QoS Flow, the values of PSDB, PSER and PSIHI can be different for UL and DL.
The QoS Profile may include the PDU Set QoS Parameters described in this clause (see clause 5.7.1.2) for UL and/or DL direction. The PCF determines the PDU Set QoS Parameters based on information provided by AF and/or local configuration. The PDU Set QoS parameters are sent to the SMF as part of PCC rule. The SMF sends them to 5G-AN as part of the QoS Profile.
If the 5G-AN receives PDU Set QoS Parameters, it enables the PDU Set based QoS Handling and applies PDU Set QoS Parameters as described in TS 38.300 [27], TS 38.413 [34] and TS 38.331 [51].