3GPP 23.501 v20.2.0 — the document's own text
5.7.3.1 General
Taught in 14. What the network promises (The 5G system architecture, in depth), 5. The connection, and what is promised on it (The 5G system architecture, overview).
This clause specifies the 5G QoS characteristics associated with 5QI. The characteristics describe the packet forwarding treatment that a QoS Flow receives edge-to-edge between the UE and the UPF in terms of the following performance characteristics:
1 Resource type (Non-GBR, GBR, Delay-critical GBR);
2 Priority Level;
3 Packet Delay Budget (including Core Network Packet Delay Budget);
4 Packet Error Rate;
5 Averaging window (for GBR and Delay-critical GBR resource type only);
6 Maximum Data Burst Volume (for Delay-critical GBR resource type only).
The 5G QoS characteristics should be understood as guidelines for setting node specific parameters for each QoS Flow e.g. for 3GPP radio access link layer protocol configurations.
Standardized or pre-configured 5G QoS characteristics, are indicated through the 5QI value and are not signalled on any interface, unless certain 5G QoS characteristics are modified as specified in clauses 5.7.3.3, 5.7.3.4, 5.7.3.6 and 5.7.3.7.
NOTE: As there are no default values specified, pre-configured 5G QoS characteristics have to include all of the characteristics listed above.
Signalled 5G QoS characteristics are provided as part of the QoS profile and shall include all of the characteristics listed above.