基地局装置及び通信方法

Base station device and communication method

Abstract

【課題】ホッピングにより他セル干渉を軽減しつつ、良好な伝搬状況の周波数を用いることを可能とし、高速伝送すること。 【解決手段】スケジューラ部102は、各通信端末装置からのCQI(を用いて、どのユーザを送信するかを決めるスケジューリングを行い、次のフレームで送信するユーザ信号を選択し、どのサブキャリアブロックで送信する決定する。MCS判定部103は選択されたユーザ信号のCQIから変調方式と符号化方法を選択する。サブキャリアブロック選択部110は、スケジューラ部102に指示されるサブキャリアブロックを各ユーザ信号に選択し、それぞれのサブキャリアブロックについてFH系列選択部111−1〜111−nでホッピングパタンが選択される。サブキャリアマッピング部112は、選択されたホッピングパタンに従ってユーザ信号及び制御用データをサブキャリアにマッピングする。 【選択図】 図1
<P>PROBLEM TO BE SOLVED: To provide a base station device in which a frequency in a good transmission situation can be used while interference is reduced to other cells by hopping, high speed transmission is realized, and control information quantity for allocating the resources can be reduced; and to provide a communication method. <P>SOLUTION: A scheduler 102 performs scheduling for deciding to which user data are to be transmitted by using CQI from respective communication terminal equipment, selects a user signal transmitted in a next frame, and decides by which subcarrier block the signal is transmitted. An MCS judging part 103 selects a modulation system and an encoding method from CQI of the selected user signal. A subcarrier block selector 110 selects the subcarrier block indicated by the scheduler 102 for the respective user signals. FH system selectors 111-1 to 111-n select hopping patterns for the respective subcarrier blocks. A subcarrier mapping part 112 maps the user signal and control data in a subcarrier in accordance with the selected hopping pattern. <P>COPYRIGHT: (C)2005,JPO&NCIPI

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