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    • 100. 发明授权
    • Terminal device, base station device, communication system, and communication method
    • 终端设备,基站设备,通信系统和通信方式
    • US09094846B2
    • 2015-07-28
    • US13704128
    • 2011-06-09
    • Toshizo NogamiKimihiko ImamuraKazuyuki Shimezawa
    • Toshizo NogamiKimihiko ImamuraKazuyuki Shimezawa
    • H04W24/02H04B7/06H04L1/00H04J11/00
    • H04W24/02H04B7/063H04B7/0632H04B7/0639H04B7/0647H04J11/0033H04L1/0026H04L1/0027H04L1/0031
    • A terminal communicating with a base station includes: a switching partswitching between a first feedback mode in which one precoder information specifying a preferred precoder and a reception quality indicator specifying a preferred transmission rate are reported periodically and a second feedback mode in which first partial precoder information among first and second partial precoder information specifying the preferred precoder and a set of the second partial precoder information and the reception quality indicator are reported periodically. A report part uses, in the second feedback mode, a periodic resource for reporting the precoder information and reception quality indicator in the first feedback mode, reporting one of the first partial precoder information and the set of the second partial precoder information and the reception quality indicator alternately and in a period two times a report period of the precoder information and reception quality indicator in the first feedback mode.
    • 与基站通信的终端包括:在第一反馈模式之间切换的切换部分,其中指定优选预编码器的一个预编码器信息和指定优选传输速率的接收质量指示符周期性地报告;以及第二反馈模式,其中第一部分预编码器信息 周期性地报告指定优选预编码器的第一和第二部分预编码器信息和第二部分预编码器信息和接收质量指示符的集合。 报告部分在第二反馈模式中使用用于在第一反馈模式中报告预编码器信息和接收质量指示符的周期性资源,报告第一部分预编码器信息和第二部分预编码器信息的集合中的一个以及接收质量 指示符在第一反馈模式中的预编码器信息和接收质量指示符的报告周期的两倍的周期内。