Question: When a Policy and Charging Rules Function (PCRF) receives a request for access network information from an Application Function (AF) with rules bound to multiple accesses, what is the initial step taken by the PCRF?
Option 1: Immediately aggregate access network information from both 3GPP and non-3GPP accesses.
Option 2: Randomly select either the 3GPP or non-3GPP access to request the access network information first.
Option 3: Prioritize requesting access network information from the non-3GPP access due to potential broader coverage.
Option 4: First, select the PCC rule bound to the 3GPP access to request the access network information.
Explanation: This approach ensures that the PCRF initially leverages the more standardized and potentially more reliable 3GPP access for gathering critical access network information. Only if this attempt is unsuccessful does it consider alternative sources, optimizing the process for efficiency and relevance within telecom networks.