MOBILE COMMUNICATION DEVICE

专利名称：MOBILE COMMUNICATION DEVICE发明人：NAKAMURA, Hiroshi c/o NEC Corporation申请号：EP01998167.9申请日：20011122公开号：EP1341320A1公开日：20030903

专利附图：

摘要：An optical subscriber system according to the present invention has an adaptiveantenna having a plurality of antenna elements, for controlling the weighting on theantenna elements thereby to radiate beams that are adapted to radio wave

environments, a position estimator for estimating the position of a mobile unit, a beam

combiner for weighting signals received from the mobile unit by the antenna elementsand combining beams, and a weighting coefficient generator for correcting weightingcoefficients adapted to radio wave environments, which give initial weights as weights toform nulls in bearings other than the mobile unit based on the position of the mobile unitwhich has been estimated by the position estimator, for thereby reducing a time requiredfor convergence.

申请人：NEC Corporation

地址：7-1, Shiba 5-chome Minato-ku, Tokyo 108-8001 JP

国籍：JP

代理机构：VOSSIUS & PARTNER

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