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AssigneeNippon Telegraph and Telephone Corporation
InventorsTomoki Murakami, Riichi Kudo, Takeo Ichikawa, Yasushi Takatori, Munehiro Matsui, Yusuke Asai, Masato Mizoguchi
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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.
A wireless communication method in which each communication cell includes a base station and a terminal station, and a base station of a first communication cell performs wireless communication using the same time and frequency channel as a base station or a terminal station of a second communication cell adjacent to the first communication cell, the method comprising:
A base station in a wireless communication system in which each communication cell includes a base station and a terminal station, and a base station or a terminal station of a first communication cell performs wireless communication using the same time and frequency channel as a base station or a terminal station of a second communication cell adjacent to the first communication cell, the base station of the first communication cell comprising:
Dependencies are inferred from the claim text.