Question: What is the primary purpose of the MBMS Registration Control Function in the UTRAN Iu interface?
Option 1: To enable the RNC to register/deregister for a specific MBMS bearer service, receiving notifications on session starts and service unavailability from the PS core network.
Option 2: To manage dedicated channels for MBMS transmissions, ensuring QoS guarantees in the UTRAN.
Option 3: To handle user equipment's (UE) MBMS service requests, directing them to appropriate SGSNs for processing.
Option 4: To monitor and control the overall MBMS bearer service capacity within the RNC's coverage area.
Explanation: The MBMS Registration Control Function facilitates communication between the RNC and the PS core network domain, enabling the RNC to stay updated about specific MBMS bearer services' availability, including session start and service unavailability notifications, for efficient resource allocation and service provisioning.