基地局装置及び無線通信方法

Base station device and radio 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
PROBLEM TO BE SOLVED: To provide a base station device and radio communication method in which a frequency of excellent propagation situation can be used while reducing interference with another cell through hopping, high-speed transmission can be performed, and a control information quantity of resource allocation can also be reduced. SOLUTION: A scheduler section 102 uses a CQI from each of communication terminal devices to perform scheduling for determining the user to whom transmission is to be performed, selects a user signal to be transmitted in a next frame and determine which sub carrier block is to be used for transmission. An MCS determination section 103 selects a modulation scheme and an encoding method from the CQI of the selected user signal. A sub-carrier block selection section 110 selects a sub-carrier block instructed by the scheduler section 102 for each user signal and a hopping pattern is selected for each sub-carrier block by FH sequence selection sections 111-1 to 111-n. A sub-carrier mapping section 112 maps the user signal and control data to the sub-carrier according to the selected hopping pattern. COPYRIGHT: (C)2007,JPO&INPIT

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