Question: In an EPC-based eHRPD access network, where is the BBERF typically located, and what is its role in relation to the PCRF during optimized handovers?
Option 1: BBERF is located in the Serving GW, acting as the primary BBERF for all IP-CAN sessions.
Option 2: BBERF is located in the PDN GW, with no direct association with UE's IP-CAN session(s) during handovers.
Option 3: BBERF is located in the HRPD Serving Gateway (HSGW), serving as the non-primary BBERF associated with the UE's IP-CAN session(s) in the PCRF during optimized EUTRAN-to-HRPD handovers.
Option 4: BBERF is not a component in EPC-based eHRPD access networks, replaced by a different functional element for bearer management.
Explanation: In the context of EPC-based eHRPD access, the BBERF's location and role are critical for managing bearers during handovers. The correct answer reflects that the BBERF is situated within the HRPD Serving Gateway (HSGW), acting as the non-primary BBERF, associated with the UE's IP-CAN session(s) in the PCRF, facilitating optimized EUTRAN-to-HRPD handovers for a seamless user experience.