Question: In a scenario where the PCEF provides the Network-Request-Support AVP during IP-CAN Session Establishment, how does the PCRF determine the selected Bearer-Control-Mode AVP?
Option 1: Based solely on the received Network-Request-Support AVP.
Option 2: Exclusively using access network information and subscriber data.
Option 3: Through a random selection process to optimize network resources.
Option 4: By considering the received Network-Request-Support AVP, access network information, subscriber information, and operator policy.
Explanation: The correct answer is Option 4 because, according to the telecom standards for Policy and Charging Control (PCC), when the PCEF supplies the Network-Request-Support AVP during IP-CAN Session Establishment or Modification, the PCRF derives the selected Bearer-Control-Mode AVP based on a comprehensive evaluation of multiple factors. These include the received Network-Request-Support AVP (indicating access network support for network-requested bearer control), access network information (providing context about the current network setup), subscriber information (considering the user’s profile and potential service level agreements), and operator policy (aligning with the network provider’s defined rules and preferences). This multi-faceted approach ensures that the selected Bearer-Control-Mode optimally balances network efficiency, user experience, and operational compliance.