Fast Beam Improvement Phase for Periodic Beamforming Training

摘要

Certain aspects of the present disclosure provide methods and apparatus for improving a beamforming training procedure. For example, an apparatus for wireless communications may include a processing system configured to generate a first transmit beamforming enhancement frame, a first interface configured to output a first transmit beamforming enhancement frame for transmission to a wireless node; The first portion of the first transmit beamforming enhancement frame is output for transmission on the first transmit beamforming sector, and further, the training fields of the first transmit beamforming enhancement frame are transmitted on two or more second transmit beamforming sectors. Output for, and a second interface configured to obtain a first feedback frame from the wireless node indicating one of the second transmit beamforming sectors. The apparatus may be configured to use the indicated second transmit beamforming sector for communication with the wireless node.