发明名称 |
Method and Transmitter Structure Reducing Ambiguity By Repetition Rearrangement in the Symbol Domain |
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.
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申请公布号 |
US2008279308(A1) |
申请公布日期 |
2008.11.13 |
申请号 |
US20050718468 |
申请日期 |
2005.07.20 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
GOLITSCHEK EDLER VON ELBWART ALEXANDER;WENGERTER CHRISTIAN;YOSHII ISAMU |
分类号 |
H04L27/20;H04L27/00 |
主分类号 |
H04L27/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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