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    • 79. 发明公开
    • Transmission method, transmitter, and receiver for multi antenna wireless communication system
    • 传输方法,发射机和接收机用于具有多个天线的无线通信系统
    • EP2381635A2
    • 2011-10-26
    • EP11171781.5
    • 2007-05-31
    • Kabushiki Kaisha Toshiba
    • Sakata, RenAkita, Koji
    • H04L27/26H04B7/06
    • H04B7/06H04B7/0413H04B7/0613H04B7/0671H04B7/0684H04L27/2602H04L27/2626
    • A transmitter for transmitting signals via at least a first antenna and a second antenna, comprising:
      a first sequence generating unit configured to generate a first sequence for estimating a first channels condition, the first sequence being same as a sequence obtained by performing a first cyclic shift on a CAZAC sequence, the first cyclic shift being a first amount set for the transmitter;
      a second sequence generating unit configured to generate a second sequence for estimating a second channel condition, the second sequence being same as a sequence obtained by performing a second cyclic shift on the CAZAC sequence, the second cyclic shift being a second amount set for the transmitter and different from the first amount;
      a first block signal generating unit configured to generate a first block signal, the first block signal being same as a signal obtained by performing a third cyclic shift on a block signal generated from data, the third cyclic shift being a third amount; and
      a second block signal generating unit configured to generate a second block signal, the second block signal being same as a signal obtained by performing a fourth cyclic shift on the block signal generated from the data, the fourth cyclic shift being a fourth amount different from the third amount;
      wherein
      a period In which the first sequence and the second sequence are transmitted differs from a period in which the first block signal and the second block signal are transmitted;
      a frequency with which the first block signal and the second block signal are transmitted is set to each transmitter;
      the first amount and the second amount are set to the each transmitter;
      a gap between the first amount and the second amount differs from a gap between the third amount and the fourth amount;
      the first sequence and the first block signal are transmitted at least via a first antenna; and
      the second sequence and the second block signal are transmitter at least via a second antenna.
    • 一种用于经由至少一个第一天线和第二天线发射的信号发射机,包括:被配置为产生第一序列用于估计第一信道条件的第一序列生成单元,所述第一序列是相同的,通过执行第一循环获得的序列 移位CAZAC序列的,所述第一循环移位是第一量用于发射器设置; 第二序列生成单元,用于生成第二序列用于估计第二信道条件,所述第二序列是相同通过对CAZAC序列的第二循环移位获得的序列,所述第二循环移位是第二量用于发射器设置 并且从第一量不同; 第一块信号生成单元,被配置以产生一第一信号块,第一块信号是与由对从数据产生的块信号的第三循环移位而获得的信号,所述第三循环移位是第三量; 和第二块信号生成单元,被配置以产生一第二信号块,第二块信号是与由对从所述数据生成的块信号的第四循环移位而获得的信号,所述第四循环移位是一个第四量differentFrom 第三量; worin的期间中,第一序列和第二序列是从一个周期的反式mitted而异,其中第一信号块和第二信号块为反式mitted; 与上述第1块信号和所述第二信号块为反式mitted被设置给每个发射机的频率; 第一量和第二量被设定为每个发射器; 第一量和所述第二量从第三量和第四量之间的间隙不同之间的间隙; 第一序列和第一块信号是经由第一天线至少反式mitted; 和第二序列和第二块信号发射机经由第二天线是至少。