ANTENNA CONTROL DEVICE, ANTENNA ADJUSTMENT METHOD, AND DISTRIBUTED ANTENNA SYSTEM
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United States of America Patent
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Oct 7, 2015
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Nov 4, 2014
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Abstract
An antenna control device controls a plurality of antennas used for communicating with a mobile station that moves along a predetermined path in a radio communication system that includes a plurality of linear cells, each of which is formed by the antennas and in each of which each of the antennas sets a directionality in a same direction as a path of the mobile station and transmits an identical signal at an identical frequency, and that has two frequencies recurrently allocated in such a manner that adjacent linear cells use different frequencies for transmission. The antenna control device adjusts, in each of the linear cells, power distribution to each of the antennas that form the linear cell so as to be gradually decreased with distance in a direction of antenna directionality of each of the antennas.
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