How it Works
This section describes how the QoS Group of Ruledef feature is implemented.
UPF provisions the configuration of QoS-group-of-ruledefs under the Active Charging Service (ACS). The CLI allows addition and removal of charging and dynamic ruledefs to a named QoS-group-of-ruledefs. A single ruledef can be part of multiple QoS-group-of-ruledefs. In this scenario, a QGR with higher priority is enforced or considered, where priority is communicated through Precedence IE by PCF over N7 interface.
PCF is aware of the names of all QoS-group-of-ruledefs and their related ruledefs configured on SMF. The PCF activates and removes QoS-group-of-ruledefs for a subscriber session using proprietary AVP in N7 message. This AVP specifies the name of the QoS-group-of-ruledefs to activate or to remove.
A subscriber may not have any QoS-group-of-ruledefs activated. Incoming traffic may match a ruledef, which has no associated QoS-group-of-ruledef for that subscriber session. In that case, action is taken based only on the configuration for that ruledef.