Question: In NG-RAN, what is the primary implication of labeling the procedure as 'Uplink' in the context of NR E-CID Positioning Procedures from the LMF (Location Management Function) perspective?
Option 1: It signifies that the UE initiates the positioning request to the serving gNB.
Option 2: It indicates that the involved measurements for NR E-CID are provided by the serving gNB to the LMF, characterizing a node-assisted approach.
Option 3: It means the procedure utilizes uplink radio resources exclusively for the transmission of positioning data from the UE.
Option 4: It highlights the use of uplink signals for OTDOA (Observed Time Difference of Arrival) measurements in NR E-CID.
Explanation: The term 'Uplink' emphasizes the serving gNB's role in providing NR E-CID related measurements to the LMF, underscoring a node-assisted methodology, crucial for understanding NG-RAN positioning procedures and network element collaboration for precise UE location determination.