Question: In E-UTRAN Intra-cell Power Control for Dual Connectivity (DC), how does a UE allocate remaining power after ensuring the minimum guaranteed power for each Cell Group (CG) in Power Control Mode 1?
Option 1: The UE allocates remaining power equally across all CGs without priority.
Option 2: The UE shares remaining power across Master Cell Group (MCG) and Secondary Cell Group (SCG) based on a priority order derived from the type of Uplink Control Information (UCI).
Option 3: The UE reserves all remaining power for the MCG exclusively.
Option 4: The allocation is solely based on the path loss of each CG.
Explanation: In Power Control Mode 1, after allocating the minimum guaranteed power to each Cell Group (CG), a User Equipment (UE) shares any remaining power across the Master Cell Group (MCG) and Secondary Cell Group (SCG) on a per transmission basis. This sharing follows a priority order based on the type of Uplink Control Information (UCI), ensuring efficient use of resources for critical control signaling.