发明申请
- 专利标题: Methods and apparatus for reduction of a peak to average ratio for an OFDM transmit signal
- 专利标题(中): 降低OFDM发射信号的峰均比的方法和装置
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申请号: US11519256申请日: 2006-09-11
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公开(公告)号: US20070230596A1公开(公告)日: 2007-10-04
- 发明人: Durk L. van Veen , Fuyun Ling , Raghuraman Krishnamoorthi
- 申请人: Durk L. van Veen , Fuyun Ling , Raghuraman Krishnamoorthi
- 主分类号: H04K1/10
- IPC分类号: H04K1/10
摘要:
Methods and apparatus for reduction of a peak to average ratio for an OFDM transmit signal. In an aspect, a method is provided for reducing a peak to average ratio of a transmit waveform. The method includes obtaining a primary scrambler sequence, generating a secondary scrambler sequence having a length characteristic based on data to be scrambled, and combining the primary and secondary scrambler sequences to produce a PAR reduction sequence. In another aspect, an apparatus is provided for reducing a peak to average ratio of a transmit waveform. The apparatus includes a secondary generator configured to generate a secondary scrambler sequence having a length characteristic based on data to be scrambled, and combining logic configured to combine a primary scrambler sequence and the secondary scrambler sequences to produce a PAR reduction sequence.
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