Invention Grant
- Patent Title: Communications method employing orthonormal time-frequency shifting and spectral shaping
- Patent Title (中): 采用正交时频移频和频谱整形的通信方法
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Application No.: US13117124Application Date: 2011-05-26
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Publication No.: US08547988B2Publication Date: 2013-10-01
- Inventor: Ronny Hadani , Selim Shlomo Rakib
- Applicant: Ronny Hadani , Selim Shlomo Rakib
- Agent Stephen E. Zweig
- Main IPC: H04J4/00
- IPC: H04J4/00

Abstract:
A wireless combination time, frequency and spectral shaping communications method that transmits data in convolution unit matrices (data frames) of N×N (N2), where generally either all N2 data symbols or elements are received over N spreading time intervals (each composed of N time slices), or none are. To transmit, each data element is assigned a unique waveform which is derived from a basic waveform of duration N time slices over one spreading time interval, where each basic waveform has a data element specific combination of a time and frequency cyclic shift. At the receiver, the received signal is correlated with the set of all N2 waveforms previously assigned to each data element by a transmitter for that specific time spreading interval, producing a unique correlation score for each one of the N2 data elements. The scores are summed over each data element, and this summation reproduces the data frame.
Public/Granted literature
- US20110292971A1 COMMUNICATIONS METHOD EMPLOYING ORTHONORMAL TIME-FREQUENCY SHIFTING AND SPECTRAL SHAPING Public/Granted day:2011-12-01
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