Question: What type of information is broadcasted by the RRC protocol to upper layers for mobile terminating calls?
Option 1: Dedicated signalling
Option 2: Positioning assistance data
Option 3: Application layer measurement configuration
Option 4: Common control information and notification of UEs in RRC_IDLE
Explanation: The RRC protocol broadcasts common control information and notifies UEs in RRC_IDLE state about mobile terminating calls, enabling the UE to transition from idle to connected mode to receive the call.