Patent ID: 8134503
Filing Date: 2012-03-13
Classification: H04B

Abstract:
1. A method comprising: at a plurality of antennas of a first wireless communication device, receiving one or more signals transmitted by a second wireless communication device in a first frequency band; computing a set of candidate beamforming weight vectors using each of the plurality of methods to produce a plurality of sets of candidate beamforming weight vectors without feedback information from the second wireless communication device about a wireless link from the first wireless communication device to the second wireless communication device; computing a correlation rate and predicted average beamforming performance among candidate beamforming weight vectors within each set; and selecting one of the plurality of sets of candidate beamforming weight vectors based on a degree of correlation and predicted average beamforming performance among its candidate beamforming weight vectors; and applying the selected one of the plurality of sets of candidate beamforming weight vectors to multiple signal streams to beamform the multiple signal streams for transmission to the second wireless communication device in a second frequency band.