Question: In NR sidelink transmission, what determines the sub-channel assignment in the frequency domain?
Option 1: Frequency resource assignment field in the associated Scheduling Control Information (SCI)
Option 2: The location of the Physical Shared Channel (PSSCH) within the bandwidth
Option 3: The index of the highest Resource Block (RB) set used for transmission
Option 4: The configuration of the Demodulation Reference Signal (DM-RS) for PSCCH
Explanation: In NR sidelink transmissions, the Frequency resource assignment field within the associated Scheduling Control Information (SCI) determines how resources in the frequency domain are allocated, influencing sub-channel assignments, ensuring efficient and organized use of available spectrum for sidelink communications between User Equipment (UE).