Question: In a 5G New Radio (NR) system, as per 3GPP specifications, how are Physical Resource Blocks (PRBs) numbered within a Bandwidth Part (BWP) for a given subcarrier spacing configuration?
Option 1: From 0 to N-1, where N is the total number of PRBs in the entire system bandwidth.
Option 2: From 0 to M-1, relative to the starting point of the BWP within the common resource block grid.
Option 3: From M to N, where M is the first common resource block of the BWP and N is the last PRB in the system.
Option 4: Dynamically assigned based on the subcarrier spacing configuration and not fixed within a BWP.
Explanation: This is correct because, according to the 3GPP specifications for NR (as hinted in the context), Physical Resource Blocks within a Bandwidth Part are indeed numbered from 0 to M-1, with the numbering being relative to the starting point of that specific Bandwidth Part within the overall common resource block grid. This approach allows for efficient utilization and identification of resources within each BWP without confusion across different BWPs or the entire system bandwidth.