发明名称 |
AN ADAPTIVE AIR INTERFACE WAVEFORM |
摘要 |
In one embodiment, a method for generating an adaptive air interface waveform includes generating a waveform that includes a variable carrier frequency and variable bandwidth signal. The variable bandwidth signal includes one or more subcarriers that are dynamically placeable over a range of frequencies, and each subcarrier is separately modulated according to a direct sequence (DS) spread spectrum (SS) technique. The waveform has an embedded pilot usable to optimize one or more spectrum efficiencies of the waveform. A modulation constellation, a code rate, and a code length of the generated waveform are adapted according to an available spectrum and one or more sub-carrier conditions.
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申请公布号 |
CA2480847(C) |
申请公布日期 |
2012.07.10 |
申请号 |
CA20032480847 |
申请日期 |
2003.04.24 |
申请人 |
RAYTHEON COMPANY |
发明人 |
BEREZDIVIN, ROBERTO;SEIDEL, SCOTT Y.;TOPP, ALLAN R.;BREINIG, ROBERT J. |
分类号 |
H04L1/00;H03M13/11;H03M13/25;H04L5/02;H04L27/26 |
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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