Question: Who can initiate the On-Demand Positioning Reference Signal (PRS) transmission procedure in a Next Generation Radio Access Network (NG-RAN), and who requests the actual PRS changes?
Option 1: Only the User Equipment (UE) initiates, while the Location Management Function (LMF) requests PRS changes.
Option 2: Either the UE or LMF can initiate, but only the UE requests PRS changes.
Option 3: The LMF solely initiates and requests all PRS changes.
Option 4: Either the User Equipment (UE) or the Location Management Function (LMF) can initiate the procedure, but the actual PRS changes are always requested by the LMF.
Explanation: This correct answer reflects the nuanced understanding of the On-Demand PRS transmission procedure's initiation and control in NG-RAN. It highlights that while both the UE and LMF have the capability to initiate the procedure, the decision and request for actual changes to the PRS transmission are always made by the LMF, showcasing its control over the process in various scenarios.