Question: What is the primary purpose of measuring the distribution of DL total PRB usage in an E-UTRAN cell?
Option 1: To monitor the uplink transmission power of the cell.
Option 2: To evaluate the performance of the cell's packet switched traffic.
Option 3: To determine whether a cell is under high loads and to aid in network capacity planning and load balancing.
Option 4: To analyze the impact of handovers on cell performance.
Explanation: The correct answer is Option 3 because measuring the distribution of DL total PRB usage helps to identify if a cell is experiencing high loads, which is crucial for network capacity planning and load balancing. This information enables operators to optimize resource allocation and ensure efficient use of available resources.