Question: In UTRAN/GERAN, how does the network typically receive MBMS data from the core-network when IP multicast reception is supported?
Option 1: Over dedicated Iu bearers allocated per UE for MBMS
Option 2: Over IP multicast with TEID coordination to avoid unicast TEID clashes
Option 3: Exclusively through normal shared Iu bearers without IP multicast capability
Option 4: Via a separate, specialized MBMS-only core-network interface
Explanation: When UTRAN (or GERAN in Iu mode) supports IP multicast reception for MBMS data from the core-network, it employs TEID coordination to avoid unicast TEID clashes. This ensures efficient and clash-free data transmission, highlighting the network's ability to manage both multicast and unicast traffic efficiently, crucial for services like MBMS that require simultaneous delivery to multiple users.