Question: For a UE receiving a PDSCH scheduled with DCI format 1_0 in a common search space, how does the RB numbering determine its starting point, regardless of the active bandwidth part?
Option 1: Always from the lowest RB of the CORESET where the DCI was received
Option 2: From the lowest RB in the determined downlink bandwidth part indicated by the bandwidth part indicator field
Option 3: Based on the higher layer parameter `resourceAllocation` in PDSCH-Config
Option 4: Dependent on the UE's support for active BWP change via DCI
Explanation: When a PDSCH is scheduled with a DCI format 1_0 in any type of PDCCH common search space, the RB numbering starts from the lowest RB of the CORESET in which the DCI was received. This rule applies regardless of which bandwidth part is currently active for the UE, ensuring consistent resource allocation determination.