5.20b.3 Support QoS for a group

The procedure as defined in clause 4.15.6.2 of TS 23.502 [3] is applicable for provisioning of default QoS for a DNN and S-NSSAI for a group of UEs with the following clarifications and enhancements:

• The AF request contains the Default QoS for the group and the UDM stores such QoS in the UDR and uses such QoS to set 5GS Subscribed QoS profile in Session Management Subscription data for each UE within the group.

NOTE: When a UE belongs to multiple groups simultaneously and AF(s) provision different Default QoS for the same DNN and S-NSSAI but different groups, UDM selects a QoS profile among the groups the UE belongs to for a DNN and S-NSSAI to set the 5GS subscribed QoS profile. How the UDM selects a QoS profile is based on implementation and configuration. The UDM can e.g. select a QoS profile with a higher 5QI Priority Level or higher ARP priority level.

Mechanisms as defined in clause 5.7.2.7 are used to enforce the 5GS Subscribed QoS profile for a DNN and S-NSSAI for each UE within a group.