AS Session Remove

Figure 2-32 illustrates the AS Session Remove procedure initiated by SCS/AS. To remove the AS session, SCS/AS sends an HTTP DELETE message to the Individual AS Session with Required QoS Subscription resource. After receiving the HTTP DELETE message, the SCEF QoS action sends an HTTP DELETE for the Application QoS Service resource toward the REST QoS plugin. The REST QoS plugin then removes all properties and interacts with the PCRF to terminate the Rx session by sending an Rx-STR command.

After a successful response is received from the REST QoS plugin, an HTTP DELETE for the ApplicationQoSNotification resource is sent by the QoS action to unregister notifications for the UE and the AS session data stored in database is cleared. A success response is then sent to the SCS/AS stating that the AS session has been removed successfully.

Figure 2-32 AS Session Remove