Question: What is the required accuracy of the UE modulated carrier frequency for V2X sidelink transmissions over a period of one time slot (0.5 ms) when using GNSS synchronization source?
Option 1: ±0.05 PPM
Option 2: ±0.01 PPM
Option 3: ±1 PPM
Option 4: ±0.1 PPM
Explanation: According to the specifications, when using GNSS synchronization source, the UE modulated carrier frequency for V2X sidelink transmissions shall be accurate to within ±0.1 PPM observed over a period of one time slot (0.5 ms). This ensures that the transmission is stable and reliable, which is critical for V2X communication where vehicles rely on precise information exchange to ensure safety.