Question: In a PRACH (Physical Random Access Channel) transmission, what are the maximum allowed values for Error Vector Magnitude (EVM) and frequency error to ensure conformance with the physical random access procedure?
Option 1: EVM: 20%, Frequency Error: (0.2 ppm + 15 Hz)
Option 2: EVM: 17.5%, Frequency Error: (0.05 ppm + 5 Hz)
Option 3: EVM: 15%, Frequency Error: (0.1 ppm + 10 Hz)
Option 4: EVM: 17.5%, Frequency Error: (0.1 ppm + 10 Hz)
Explanation: The maximum allowed EVM value for PRACH preambles is 17.5% to ensure signal quality. The maximum allowed frequency error is (0.1 ppm + 10 Hz), balancing transmitter accuracy and reliable communication link robustness in various operational conditions.