Question: In a Policy and Charging Control (PCC) architecture, when the PCRF sets the Bearer-Control-Mode AVP to 'UE_NW' (value 2), what does this indicate about resource establishment, modification, or termination?
Option 1: Only the UE (User Equipment) can request these actions without involving the PCEF (Policy and Charging Enforcement Function).
Option 2: Both the UE and the PCEF may independently request resource establishment, modification, or termination.
Option 3: The PCEF is solely responsible for handling all resource requests, bypassing the UE.
Option 4: This setting reserves the resource control decisions for future releases, not currently in use.
Explanation: When the Bearer-Control-Mode AVP is set to 'UE_NW' (value 2) by the PCRF, it signifies a collaborative approach where both the User Equipment (UE) and the Policy and Charging Enforcement Function (PCEF) have the capability to initiate resource establishment, modification, or termination. This is particularly useful for managing traffic flow information dynamically, ensuring flexible and efficient network resource utilization.