- Patent Title: Zero tail and unique word based waveforms for DFT-S OFDM and OFDM
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Application No.: US15777761Application Date: 2016-11-30
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Publication No.: US10284407B2Publication Date: 2019-05-07
- Inventor: Erdem Bala , Mihaela C. Beluri , Kyle Jung-Lin Pan , Tao Deng , Liangping Ma , Yugeswar Deenoo , Ravikumar V. Pragada , Alphan Sahin
- Applicant: IDAC HOLDINGS, INC.
- Applicant Address: US DE Wilmington
- Assignee: IDAC Holdings, Inc.
- Current Assignee: IDAC Holdings, Inc.
- Current Assignee Address: US DE Wilmington
- Agency: Volpe and Koenig, P.C.
- International Application: PCT/US2016/604196 WO 20161130
- International Announcement: WO2017/095909 WO 20170608
- Main IPC: H04L27/30
- IPC: H04L27/30 ; H04L27/26

Abstract:
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.
Public/Granted literature
- US20180375707A1 ZERO TAIL AND UNIQUE WORD BASED WAVEFORMS FOR DFT-S OFDM AND OFDM Public/Granted day:2018-12-27
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