发明授权
- 专利标题： OFDM communication system and method having a reduced peak-to-average power ratio
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申请号： US09778254申请日： 2001-02-07
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公开(公告)号： US06928084B2公开(公告)日： 2005-08-09
- 发明人: Leonard Joseph Cimini, Jr. , Nelson Ray Sollenberger
- 申请人： Leonard Joseph Cimini, Jr. , Nelson Ray Sollenberger
- 申请人地址： US NY Bedminster
- 专利权人： AT & T Corp.
- 当前专利权人： AT & T Corp.
- 当前专利权人地址： US NY Bedminster
- 主分类号： H04L27/26
- IPC分类号： H04L27/26 ; H04Q11/02
摘要：
An OFDM system embeds sequence information in the transmitted signal that reduces peak average power ratio (PAP) with minimal impact on the overall system efficiency. A marker is embedded onto the transmitted information that is used to identify the combining (inversion) sequence at the receiver. In one embodiment, selected tones in a cluster are rotated when the corresponding phase factor rotates the cluster.
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