发明公开
EP2381635A3 Transmission method, transmitter, and receiver for multi antenna wireless communication system
审中-公开
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
- 专利标题： Transmission method, transmitter, and receiver for multi antenna wireless communication system
- 专利标题（中）： 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
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申请号： EP11171781.5申请日： 2007-05-31
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公开(公告)号： EP2381635A3公开(公告)日： 2016-08-03
- 发明人: Sakata, Ren , Akita, Koji
- 申请人： Kabushiki Kaisha Toshiba
- 申请人地址： 1-1, Shibaura 1-Chome Minato-Ku Tokyo 105-8001 JP
- 专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人地址： 1-1, Shibaura 1-Chome Minato-Ku Tokyo 105-8001 JP
- 代理机构： Moreland, David
- 优先权： JP2006221029 20060814
- 主分类号： H04L27/26
- IPC分类号： H04L27/26 ; H04B7/06 ; H04B7/04
摘要：
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.
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.
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