Wireless communication method, base station, wireless communication system, and communication apparatus

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United States of America Patent

PATENT NO 9370013
APP PUB NO 20150036634A1
SERIAL NO

14518215

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Abstract

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Provided are a wireless communication method, a base station, a wireless communication system and a communication apparatus whereby an interference power is calculated from an estimated propagation channel estimation result and the transmission power is controlled based on the interference power or the interference is suppressed by controlling the directivity, thereby increasing the transmission capacity. A propagation channel estimation circuit performs propagation channel estimation from a response signal transmitted from a terminal station and estimates a propagation channel estimation result. An interference power calculation circuit measures each interference power from a signal of each sub-carrier received by each of wireless units, and calculates an interference power for each sub-carrier from the propagation channel estimation result estimated by the propagation channel estimation circuit. When the calculated interference power is equal to or more than a predetermined threshold, an interference suppression signal generation circuit changes the transmission power and generates an interference suppression signal.

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Patent Owner(s)

Patent OwnerAddress
NIPPON TELEGRAPH AND TELEPHONE CORPORATION5-1 OTEMACHI 1-CHOME CHIYODA-KU TOKYO 1008116

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Asai, Yusuke Yokosuka, JP 86 627
Ichikawa, Takeo Yokosuka, JP 31 333
Kudo, Riichi Yokosuka, JP 53 489
Matsui, Munehiro Yokosuka, JP 26 306
Mizoguchi, Masato Yokosuka, JP 119 1166
Murakami, Tomoki Yokosuka, JP 81 182
Takatori, Yasushi Yokosuka, JP 164 6664

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