公开(公告)号：WO2016183230A1

公开(公告)日：2016-11-17

申请号：PCT/US2016/031909

申请日：2016-05-11

Applicant: COHERE TECHNOLOGIES

Inventor： HADANI, Ronny ,  SHLOMO, Selim, Rakib

IPC: H04B1/10 ,  H04B1/69 ,  H04B1/692 ,  H04B1/713 ,  H04B7/005 ,  H04L27/01

CPC classification number: H04B1/692 ,  H04L1/0071 ,  H04L5/0021 ,  H04L27/2627 ,  H04L27/264 ,  H04L27/2649

Abstract: An alternative method of data communications using orthogonal time frequency shifting (OTFS) wireless waveforms configured so as to transmit data in a manner that is relatively insensitive to communications channel distortions and frequency shifts. In contrast to prior methods taught by applicant, the present disclosure teaches an alternative modulation scheme that maps data symbols intended for data transmission onto a symplectic-like 2D Fourier transform which operates on a form of the original data symbols. This 2D Fourier transform in turn is passed through a filter bank of narrow band filters, and the output in turn used to modulate transmitted waveforms according to various time slices until the entire 2D Fourier transform has been transmitted. At the receiver, and inverse of this process can be used to both characterize the data channel and correct the received signals for channel distortions, thus receiving a clear form of the original data symbols.

Abstract translation: 使用正交时间频移（OTFS）无线波形的数据通信的替代方法，其被配置为以对通信信道失真和频移相对不敏感的方式发送数据。 与申请人教授的现有方法相反，本公开教导了将用于数据传输的数据符号映射到以原始数据符号的形式进行操作的类似二维傅立叶变换的替代调制方案。 该二维傅里叶变换依次通过滤波器组的窄带滤波器，并且该输出依次用于根据各种时间片调制发射的波形，直到整个二维傅立叶变换被发送。 在接收机处，并且该过程的逆可以用于表征数据信道并校正接收到的信道的信道失真，从而接收到原始数据符号的清晰形式。