发明名称 |
Übertragungssystem mit adaptiver Modulation, Sendevorrichtung und Verfahren dafür |
摘要 |
<p>An adaptive modulation transmission system is disclosed that is capable of assigning a combination of a modulation parameter and a code multiplicity according to a user requirement and a propagation path condition between a transmission device and a reception device. The transmission device includes a signal modulation unit to modulate data according to the modulation parameter, a code multiplexing unit to perform code multiplexing according to the code multiplicity, a code multiplexing controller to select the code multiplicity according to the required amount of transmission data, and an adaptive modulation controller. The adaptive modulation controller sets a threshold of the propagation path quality to define a region to which a combination of the modulation parameter and the code multiplicity is applicable, selects the combination of the modulation parameter and the code multiplicity based on a comparison result of the threshold and measured propagation path quality, and outputs the selected modulation parameter to the signal modulation unit.</p> |
申请公布号 |
DE602004029303(D1) |
申请公布日期 |
2010.11.11 |
申请号 |
DE20046029303T |
申请日期 |
2004.03.04 |
申请人 |
FUJITSU LTD. |
发明人 |
TANAKA, YOSHINORI;SEKI, HIROYUKI;TAKEO, KOUJI |
分类号 |
H04L1/00;H04L27/38;H04J11/00;H04J13/00 |
主分类号 |
H04L1/00 |
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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