QUALCOMM Incorporated
Power control techniques for ultra-wide bandwidth beamforming systems

Abstract:

Methods, systems, and devices for wireless communication are described that provide for measuring one or more reference signals on one or more sub-bands of a wide-bandwidth communications frequency band. A user equipment (UE) may measure a path loss of a first frequency sub-band of a set of frequency sub-bands, and may determine an estimated path loss for a second frequency sub-band based on the measured path loss of the first frequency sub-band. A transmission power for the second frequency sub-band may be determined based on the estimated path loss for the second frequency sub-band, and a transmission using the second frequency sub-band may use the determined transmission power. The UE may maintain multiple transmitter power control (TPC) loops for multiple sub-bands, and power control commands for the first frequency sub-band may be used for one or more other sub-bands that are associated with the first sub-band.