METHODS AND WIRELESS COMMUNICATION DEVICE FOR UPDATING BEAMFORMING CODEBOOKS FOR ANGLE-OF-ARRIVAL ESTIMATION USING COMPRESSIVE SENSING IN WIRELESS COMMUNICATIONS

摘要

A beamforming codebook update method for improving analog beamforming gain is provided. A method of updating a beamforming codebook includes receiving, at an antenna array of a wireless communication device during a previous period, a first directional electromagnetic signal comprising a beam sweeping reference symbol of a previous beam sweeping period, and comprising: processing circuitry of the wireless communication device; using, calculate an estimated combined channel based on the received first directional electromagnetic signal, and use the processing circuit to form two or more beams corresponding to different angles-of-arrival Measure a dominant angle of arrival of the first directional electromagnetic signal based on the measured combined channel and a previous beamforming codebook comprising the vector, and use the processing circuitry to measure one or more points spaced from the measured dominant angle of arrival. Calculate the remaining angles of arrival, use processing circuitry to generate an updated beamforming codebook based on the measured dominant angles of arrival and one or more remaining angles of arrival, and generate data symbols from the antenna array during the current period. Receive a second directional electromagnetic signal including and detecting data symbols of the bidirectional electromagnetic signal.