Question: What is the maximum allowed frequency error for UE(s) supporting UL-MIMO, observed over a period of one time slot?
Option 1: ±0.05 PPM
Option 2: ±0.1 PPM
Option 3: ±0.5 PPM
Option 4: ±1 PPM
Explanation: The maximum allowed frequency error for UE(s) supporting UL-MIMO is crucial to ensure proper synchronization and communication with the E-UTRA Node B. A frequency error of ±0.1 PPM observed over a period of one time slot (0.5 ms) strikes a balance between allowing for minor variations in UE transmission and maintaining reliable communication. This tolerance level enables UEs to transmit accurately while accounting for potential hardware or environmental factors that may affect frequency stability.