QUALCOMM Incorporated
BEAM MANAGEMENT WITH BACKTRACKING AND DITHERING

Abstract:

Methods, systems, and devices for wireless communications are described. A first wireless device may determine a best beam for communications with a wireless device using a beam selection procedure and beam selection algorithm based on measurements of one or more beam selection parameters for different layers of beams. For example, the first wireless device may measure a beam selection parameter to select a first layer beam and then may measure the beam selection parameter for one or more second layer beams corresponding to the first layer beam. Based on the beam selection parameter measurements, the first wireless device may determine to backtrack and select a different first layer beam to continue the beam selection procedure. Additionally, the first wireless device may apply dithering to the initially selected first layer beam to decrease chances the initially selected first layer beam is selected again.