发明申请
- 专利标题： Systems and Methods for Transmit-Only Peak-to-Average Ratio Reduction in the Oversampled Regime Using Reserved Tones
- 专利标题（中）： 使用保留音调的过采样方案中仅发送峰均比减少的系统和方法
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申请号： US12138731申请日： 2008-06-13
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公开(公告)号： US20080310296A1公开(公告)日： 2008-12-18
- 发明人: Amitkumar Mahadevan , Patrick Duvaut , Harish Jethanandani , Rahul Garg
- 申请人： Amitkumar Mahadevan , Patrick Duvaut , Harish Jethanandani , Rahul Garg
- 申请人地址： US CA Newport Beach
- 专利权人： CONEXANT SYSTEMS, INC.
- 当前专利权人： CONEXANT SYSTEMS, INC.
- 当前专利权人地址： US CA Newport Beach
- 主分类号： H04L29/04
- IPC分类号： H04L29/04 ; H04B3/00 ; H04B15/00
摘要：
Systems and methods for reducing the peak-to-average power ratio (PAR) at the transmitter can reduce the dynamic range required in various analog components. PAR can be reduced by applying a time-domain compensation signal in the oversampled regime, using tones reserved for PAR reduction. A set of vectors corresponding to PAR tones is generated by processing out-of-phase symbols for each PAR tone to form a span matrix. The span matrix is used to find a best fit of a desired target signal to a time-domain compensation signal comprising only PAR tones.
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