发明授权
US08428184B2 Transmitter, receiver, data transmission method and data reception method
有权
发射机，接收机，数据传输方法和数据接收方法
- 专利标题： Transmitter, receiver, data transmission method and data reception method
- 专利标题（中）： 发射机，接收机，数据传输方法和数据接收方法
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申请号： US13228227申请日： 2011-09-08
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公开(公告)号： US08428184B2公开(公告)日： 2013-04-23
- 发明人: Alexander Golitschek Edler Von Elbwart , Christian Wengerter , Isamu Yoshii
- 申请人： Alexander Golitschek Edler Von Elbwart , Christian Wengerter , Isamu Yoshii
- 申请人地址： JP Osaka
- 专利权人： Panasonic Corporation
- 当前专利权人： Panasonic Corporation
- 当前专利权人地址： JP Osaka
- 代理机构： Dickinson Wright PLLC
- 优先权： EP04026082 20041103
- 主分类号： H04L27/22
- IPC分类号： H04L27/22
摘要：
A method is provided which improves reliability of channel estimation in a digital communication system by reducing the ambiguity in the recognition of received symbols evaluated for the channel estimation. A data word transmitted according to a first mapping of data word values to modulation states is re-transmitted at least once with a second, re-arranged mapping of data word values to modulation states. The second mapping and possible further mappings are generated from the first mapping in a way that the number of different results which can be obtained from combining the transmitted original data symbol and the re-transmitted counterpart data symbol(s) is lower than the number of original modulation states in the first mapping.