Question: In an MBMS-dedicated cell, what is the primary channel through which the E-UTRAN sends BCCH-BCH-Message-MBMS to a User Equipment (UE)?
Option 1: Dedicated Channel (DCH)
Option 2: High-Speed Downlink Shared Channel (HS-DSCH)
Option 3: Broadcast Channel (BCH) on the BCCH logical channel
Option 4: Multicast Channel (MCH)
Explanation: In the context of Evolved Universal Terrestrial Radio Access (E-UTRA), the Broadcast Channel (BCH) is utilized for broadcasting system information to all User Equipment (UEs) within a cell's coverage. Specifically, for MBMS (Multimedia Broadcast/Multicast Service)-dedicated cells, critical system messages like those defined under BCCH-BCH-Message-MBMS are disseminated via the BCH on the BCCH (Broadcast Control Channel) logical channel. This ensures that all UEs in the cell receive necessary configuration and operational updates simultaneously, highlighting the role of BCH in efficiently managing broadcast/multicast communications within E-UTRAN networks.