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    • 28. 发明申请
    • WIRELESS DATA COMMUNICATION SYSTEM, WIRELESS DATA COMMUNICATION METHOD AND COMMUNICATION APPARATUS
    • 无线数据通信系统,无线数据通信方法和通信装置
    • US20070081450A1
    • 2007-04-12
    • US11493821
    • 2006-07-27
    • Shigenori HayaseShinji MuraiTomoaki Ishifuji
    • Shigenori HayaseShinji MuraiTomoaki Ishifuji
    • H04J11/00
    • H04B7/0617
    • A wireless communication system has no limitation in the number of AP antennas and UT antennas, and determines the parallel-communication data units to be a maximum value of MIMO communication, such that it provides a MIMO-SDMA wireless data communication system having superior transmission characteristics. The MIMO-SDMA wireless data communication system includes a single AP (Access Point) and U UTs (User Terminals) communicating with the AP using the same frequency signal at the same time. The UT includes the SDMA reception (Rx) processor, and synthesizes Rx signals of antennas, such that it controls the number of Rx data units. By the control of the number of Rx data units, the communication system controls the number of parallel-communication data units to be equal to a maximum value capable of being implemented by the MIMO-SDMA wireless data communication. The AP informs the UTs of a coefficient matrix required for the SDMA Rx process, prior to transmitting actual data.
    • 无线通信系统对AP天线和UT天线的数量没有限制,并且将并行通信数据单元确定为MIMO通信的最大值,使得其提供具有优异传输特性的MIMO-SDMA无线数据通信系统 。 MIMO-SDMA无线数据通信系统包括使用相同频率信号同时与AP通信的单个AP(接入点)和U UT(用户终端)。 UT包括SDMA接收(Rx)处理器,并且合成天线的Rx信号,使得它控制Rx数据单元的数量。 通过控制Rx数据单元的数量,通信系统将并行通信数据单元的数量控制为能够通过MIMO-SDMA无线数据通信实现的最大值。 在发送实际数据之前,AP向UT通知SDMA Rx进程所需的系数矩阵。