Question: How is the frequency domain resource assignment of a Sidelink (SL) Positioning Reference Signal (PRS) resource determined in a 5G New Radio (NR) network for a dedicated resource pool, compared to a shared resource pool?
Option 1: It is dynamically signaled via DCI (Downlink Control Information) in both dedicated and shared pools.
Option 2: For dedicated pools, it matches the PSSCH (Physical Sidelink Shared Channel) resources, while for shared pools, it follows a predefined pattern.
Option 3: For dedicated resource pools, the assignment is the same as the frequency resources of the resource pool itself, differing from shared pools which mirror PSSCH assignments in the same slot.
Option 4: It is always based on the cell-specific reference signal configuration, regardless of the pool type.
Explanation: This requires understanding of how resources are allocated for SL PRS in NR networks, distinguishing between dedicated and shared resource pools. Option 3 correctly reflects that for a dedicated resource pool, the frequency domain assignment for an SL PRS resource aligns with the pool's frequency resources, whereas in a shared resource pool, it mirrors the PSSCH assignments within the same slot.