Question: Which of the following best describes the primary purpose of the Common Measurement Reporting procedure in UTRAN's Iur interface?
Option 1: To establish a new signalling bearer connection between two RNCs.
Option 2: To initiate measurements for handover decision-making within the same RNC context.
Option 3: To provide real-time location updates of User Equipment (UE) to the Serving RNC.
Option 4: To report measurement results from one RNC to another, following a Common Measurement Initiation request.
Explanation: The correct answer is Option 4 because the Common Measurement Reporting procedure is specifically designed for an RNC to share the outcomes of measurements that were requested by another (distant) RNC. This process leverages existing signalling bearer connections, indicating its purpose is to report back on initiated measurements, not to initiate new connections, handle intra-RNC handovers, or update UE locations in real-time.