公开(公告)号：WO2019113046A1

公开(公告)日：2019-06-13

申请号：PCT/US2018/063818

申请日：2018-12-04

Applicant: COHERE TECHNOLOGIES, INC.

Inventor： SATHYANARAYAN, Seshadri ,  RAKIB, Shlomo ,  HADANI, Ronny ,  IBARA CASAS, Christian ,  DELFELD, James ,  KONS, Shachar ,  HEBRON, Yoav

IPC: H04W72/04

Abstract: Device, methods and systems for implementing aspects of orthogonal time frequency space (OTFS) modulation in wireless systems are described. In an aspect, the device may include a surface of an object for receiving an electromagnetic signal. The surface may be structured to perform a non-electrical function for the object. The surface may generate an electrical signal from an electromagnetic signal. The electromagnetic signal may be received from a transmitter. The transmitter may map digital data to a digital amplitude modulation constellation in a time- frequency space. The digital amplitude modulation constellation may be mapped to a delay-Doppler domain and the transmitter may transmit to the surface according to an orthogonal time frequency space modulation signal scheme. The apparatus may further include a demodulator to demodulate the electrical signal to determine digital data.

公开(公告)号：WO2017173219A1

公开(公告)日：2017-10-05

申请号：PCT/US2017/025291

申请日：2017-03-31

Applicant: COHERE TECHNOLOGIES, INC.

Inventor： HADANI, Ron ,  RAKIB, Shlomo

IPC: H04B1/04 ,  H04B1/62 ,  H04L23/02 ,  H04L5/00 ,  H04L25/03 ,  H04L27/26

Abstract: A wireless telecommunications system that mitigates infrasymbol interference due to Doppler-shift and multipath. Embodiments of the present invention are particularly advantageous for wireless telecommunications systems that operate in high-mobility environments, including high-speed trains and airplanes.

Abstract translation:

减轻由于多普勒频移和多路径引起的基线干扰的无线电信系统。 本发明的实施例对于在高移动性环境中操作的无线电信系统（包括高速列车和飞机）是特别有利的。