Question: When an IP-CAN session termination is received over the Gx reference point, what action does the H-PCRF take if the Gateway Control Session was established for multiple IP-CAN sessions?
Option 1: Initiate a Gateway Control Session Termination procedure over S9 to terminate all associated sessions.
Option 2: Initiate a Gateway Control and QoS Rules Provision procedure over S9 to remove the QoS Rules in the BBERF associated with the terminated IP-CAN session.
Option 3: Directly notify the UE of the session termination without involving the BBERF.
Option 4: Wait for further instructions from the V-PCRF before taking any action.
Explanation: According to the specified behavior, if an IP-CAN session termination is received and the Gateway Control Session was not established solely for that single IP-CAN session (implying it was for multiple sessions), the H-PCRF initiates a procedure to update the QoS rules in the BBERF, not to terminate the entire Gateway Control Session. This ensures resources are managed efficiently without disrupting other active sessions under the same Gateway Control Session.