Question: What is the primary function of the MBMS Gateway (MBMS GW) in the context of interworking with the Broadcast Multicast Service Centre (BM-SC) in EPS?
Option 1: To handle only session start messages and TMGI parameters.
Option 2: To provide a single reference point for both user plane and control plane interworking.
Option 3: To manage multiple MBMS GWs within a Public Land Mobile Network (PLMN).
Option 4: To handle specific messages, such as session start/session update/session stop, and parameters like TMGI, MBMS service area, and list of MBMS control plane nodes.
Explanation: The correct answer is Option 4 because the MBMS GW plays a crucial role in interworking with the BM-SC by handling specific messages (session start/session update/session stop) and parameters (TMGI, MBMS service area, list of MBMS control plane nodes). This ensures seamless communication between the PLMN and PDN.