US Patent 7940215 Adaptive antenna radio communication device
Patent 7940215 was granted and assigned to Panasonic on May, 2011 by the United States Patent and Trademark Office.
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An adaptive antenna radio communication device comprises a divided band direction estimating unit for estimating the direction by calculating the cross correlations between a pilot signal and sub-carrier signals of the respective divided bands received by an array antenna and calculating a spatial profile from correlation matrices determined by combining the correlation values between antenna elements of the different sub-carriers according to the output of the cross correlation calculation; a divided band array weight creating unit for creating a weight of a receive array having a directional beam in the direction of estimation for each divided band; and a sub-carrier directivity creating unit for creating a directivity by multiplication-combining the created receive array weight with the corresponding sub-carrier signal.
US Patent 07940215 Adaptive antenna radio communication device US Patent 7940215 Adaptive antenna radio communication device
US Patent 07940215 Adaptive antenna radio communication device
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