COMMUNICATION DEVICE, COMMUNICATION SYSTEM, COMMUNICATION METHOD AND COMPUTER PROGRAM

PROBLEM TO BE SOLVED: To improve the reception success rate of a response signal at a transmission source node, when a communication channel, through which the transmission source node transmits a data signal to a destination node, is different from a communication channel through which the destinat...

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Bibliographische Detailangaben
Hauptverfasser: WATANABE SHINGO, JO TOMOO, KAKIUCHI HAYATO, ZHAO BING XUAN
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To improve the reception success rate of a response signal at a transmission source node, when a communication channel, through which the transmission source node transmits a data signal to a destination node, is different from a communication channel through which the destination node returns to the transmission source node a response signal to the data signal.SOLUTION: A communication device includes: a first frame generation unit which generates a first frame including a data signal to be transmitted to each of a plurality of destination nodes; a second frame generation unit which generates a second frame, representing the criterion of the different timing of a third frame, which includes a response signal to the data signal included in the first frame, and is transmitted from each of the plurality of destination nodes; a transmitter unit which transmits the first frame through a first communication channel associated with each of the plurality of destination nodes, and also transmits the second frame through a second communication channel which is used for the transmission of the third frame and different from the first communication channel; and a receiver unit which receives the third frame through the second communication channel.SELECTED DRAWING: Figure 4 【課題】送信元ノードが宛先ノードへデータ信号を送信する通信チャネルと、宛先ノードが送信元ノードへ該データ信号についての応答信号を返信する通信チャネルとが異なる場合に、送信元ノードにおける該応答信号の受信成功率を向上させる。【解決手段】通信装置は、複数の宛先ノードの各々に送信するデータ信号を含む第1フレームを生成する第1フレーム生成部と、第1フレームに含まれるデータ信号についての応答信号を含む第3フレームを複数の宛先ノードの各々が送信する異なるタイミングの基準を表す第2フレームを生成する第2フレーム生成部と、第1フレームを複数の宛先ノードの各々に対応する第1通信チャネルにより送信し、第2フレームを第1通信チャネルとは異なる通信チャネルであって第3フレームの伝送に使用される第2通信チャネルにより送信する送信部と、第2通信チャネルにより第3フレームを受信する受信部と、を備える。【選択図】図4