发明申请
US20090060073A1 METHOD FOR SUPPRESSING PEAK POWER OF ORTHOGONALLY MULTIPLEXED SIGNAL, PEAK POWER SUPPRESSING CIRCUIT, AND TRANSMITTER
有权
用于抑制正交多路信号峰值功率的方法,峰值功率抑制电路和发射机
- 专利标题: METHOD FOR SUPPRESSING PEAK POWER OF ORTHOGONALLY MULTIPLEXED SIGNAL, PEAK POWER SUPPRESSING CIRCUIT, AND TRANSMITTER
- 专利标题(中): 用于抑制正交多路信号峰值功率的方法,峰值功率抑制电路和发射机
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申请号: US12199595申请日: 2008-08-27
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公开(公告)号: US20090060073A1公开(公告)日: 2009-03-05
- 发明人: Takashi Yano , Shigenori Hayase , Masashi Naito
- 申请人: Takashi Yano , Shigenori Hayase , Masashi Naito
- 专利权人: Hitachi Kokusai Electric Inc.
- 当前专利权人: Hitachi Kokusai Electric Inc.
- 优先权: JP2007-222820 20070829
- 主分类号: H04J11/00
- IPC分类号: H04J11/00
摘要:
To suppress the peak of the orthogonal multiplex transmission signal which is small in deterioration of the quality of the reception signal by generating the cancellation waveform in synchronization with the timing of the symbol of the transmission signal. There is provided a peak suppressing method that suppresses peaks of an orthogonally multiplexed signal whose orthogonality is ensured in given time units, the method comprising: a first step of detecting the peaks of the orthogonally multiplexed signal; a second step of generating a peak cancellation waveform based on the detected peaks of the orthogonally multiplexed signal; and a third step of removing the peak of the orthogonally multiplexed signal from the orthogonally multiplexed signal using the generated peak cancellation waveform. The second step comprises generating the peak cancellation waveform in said time units of the orthogonally multiplexed signal.