- 专利标题: Zero tail and unique word based waveforms for DFT-S OFDM and OFDM
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申请号: US15777761申请日: 2016-11-30
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公开(公告)号: US10284407B2公开(公告)日: 2019-05-07
- 发明人: Erdem Bala , Mihaela C. Beluri , Kyle Jung-Lin Pan , Tao Deng , Liangping Ma , Yugeswar Deenoo , Ravikumar V. Pragada , Alphan Sahin
- 申请人: IDAC HOLDINGS, INC.
- 申请人地址: US DE Wilmington
- 专利权人: IDAC Holdings, Inc.
- 当前专利权人: IDAC Holdings, Inc.
- 当前专利权人地址: US DE Wilmington
- 代理机构: Volpe and Koenig, P.C.
- 国际申请: PCT/US2016/604196 WO 20161130
- 国际公布: WO2017/095909 WO 20170608
- 主分类号: H04L27/30
- IPC分类号: H04L27/30 ; H04L27/26
摘要:
Methods and systems for operation in a wireless network are provided, the method including receiving modulated data symbols and zeros in a frequency-domain, and mapping in the frequency-domain the modulated data symbols and zeros in an interleaved manner to sub-carriers within a resource allocation. The method further includes generating a time-domain data signal based on the mapped sub-carriers, and generating a time domain cancellation signal by sign inverting and repeating a predetermined number of time-domain samples at a tail portion of the data signal. The method further includes combining the time-domain data signal and the time domain cancellation signal to generate an exact zero tail data signal such that the exact zero tail data signal has a zero tail length equal to the predetermined number of time-domain samples, and transmitting the exact zero tail data signal.
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