发明名称 Mobile station employing directional antennas
摘要 The invention relates to a mobile station (1) which allows less transmission power and less signal interference. The mobile station (1) comprises an antenna arrangement (5), the antenna arrangement (5) being switchable between at least two different radiation patterns. At least two antenna elements (10, 15, 20) with a directional radiation pattern, respectively, are provided at the antenna arrangement (5). Each directional radiation pattern covers a different radiation sector (25, 30, 35). For signal reception the at least two antenna elements (10, 15, 20) are activated. Measurements means (40) are provided to measure signal quality parameters at each of the at least two antenna elements (10, 15, 20) at signal reception. Evaluation means (45) is provided to select at least one radiation sector (25, 30, 35) and to activate the corresponding antenna element (10, 15, 20) for signal transmission in this radiation sector (25, 30, 35) dependent on the measurement of the signal quality parameters at signal reception. <IMAGE>
申请公布号 EP0987838(A1) 申请公布日期 2000.03.22
申请号 EP19980117714 申请日期 1998.09.18
申请人 ROBERT BOSCH GMBH 发明人 KNUDSEN, JASPER;VEJLGAARD, BENNY
分类号 H01Q3/24;H04B7/06;H04B7/08 主分类号 H01Q3/24
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