Question: What is the primary purpose of utilizing SSR Satellite Phase Center Variation (PCV) Residuals in NG-RAN for User Equipment (UE) positioning?
Option 1: To solely correct for satellite orbit errors in real-time.
Option 2: To provide nadir angle dependent variations, complementing SSR Orbit Correction and SSR Phase Bias for determining the satellite antenna's effective center location.
Option 3: Exclusively to adjust for phase biases introduced by the UE's antenna.
Option 4: To bypass the need for SSR Orbit Correction in certain network configurations.
Explanation: The correct answer highlights the primary function of SSR Satellite PCV Residuals. These residuals provide nadir angle dependent variations of the satellite's Antenna Phase Center (APC), crucial when combined with other corrections for precise determination of the satellite antenna's effective center, vital for accurate UE positioning in NG-RAN.