-
41.发明申请公开(公告)号：US20170222700A1
公开(公告)日：2017-08-03
申请号：US15374995
申请日：2016-12-09
Applicant: COHERE TECHNOLOGIES, INC.
Inventor： Ronny Hadani , Shlomo Selim Rakib
IPC: H04B7/0456 , H04L5/00
CPC classification number: H04B7/0456 , H04B1/02 , H04B1/12 , H04B7/0413 , H04L5/0005 , H04L5/0007 , H04L5/0016 , H04L5/0023 , H04L5/0048 , H04L23/02 , H04L25/03834 , H04L27/26 , H04L27/2634 , H04L27/2636 , H04L27/2639 , H04L27/265 , H04L27/2655 , H04L27/2697 , H04W4/70
Abstract: A device and method for signal separation in an orthogonal time frequency space communication system using MIMO antenna arrays. The communication device includes an antenna arrangement and a receiver. The receiver is configured to receive, from the antenna arrangement, a plurality of pilot signals associated with respective locations in a time-frequency plane wherein the plurality of pilot signals were transmitted from a corresponding plurality of transmit antenna elements. The receiver is further configured to receive signal energy transmitted by the plurality of transmit antenna elements and to measure, based upon the plurality of pilot signals, a plurality of two-dimensional time-frequency coupling channels between the plurality of transmit antenna elements and the antenna arrangement. The receiver is also operative to invert a representation of each of the plurality of two-dimensional time-frequency coupling channels to provide a plurality of inverted channel representations.
-
42.发明申请公开(公告)号：US20170201354A1
公开(公告)日：2017-07-13
申请号：US15407941
申请日：2017-01-17
Applicant: COHERE TECHNOLOGIES, INC.
Inventor： Ronny Hadani , Selim Shlomo Rakib
CPC classification number: H04L5/0005 , H04B7/005 , H04L5/0016 , H04L5/0044 , H04L23/02 , H04L25/03834 , H04L27/01 , H04L27/10 , H04L27/2634 , H04L27/2649 , H04L27/265 , H04L27/2655 , H04L27/2697
Abstract: A method for modulating data for transmission within a communication system. The method includes establishing a time-frequency shifting matrix of dimension N×N, wherein N is greater than one. The method further includes combining the time-frequency shifting matrix with a data frame to provide an intermediate data frame. A transformed data matrix is provided by permuting elements of the intermediate data frame. A modulated signal is generated in accordance with elements of the transformed data matrix.
-
公开(公告)号：US20170149595A1
公开(公告)日：2017-05-25
申请号：US15194494
申请日：2016-06-27
Applicant: Cohere Technologies, Inc.
Inventor： Selim Shlomo Rakib , Ronny Hadani
CPC classification number: H04L27/2627 , H04B7/0413 , H04B7/0617 , H04L5/0007 , H04L5/001 , H04L5/0016 , H04L23/02 , H04L25/03834 , H04L27/0002 , H04L27/2639 , H04L27/264 , H04L27/265 , H04L27/2655 , H04L27/2697 , H04L67/12
Abstract: A system and method for orthogonal time frequency space communication and waveform generation. The method includes receiving a plurality of information symbols and encoding an N×M array containing the plurality of information symbols into a two-dimensional array of modulation symbols by spreading each of the plurality of information symbols with respect to both time and frequency. The two-dimensional array of modulation symbols is then transmitted using M mutually orthogonal waveforms included within M frequency sub-bands.
-
44.发明授权公开(公告)号：US09660851B2
公开(公告)日：2017-05-23
申请号：US14754596
申请日：2015-06-29
Applicant: COHERE TECHNOLOGIES, INC.
Inventor： Ronny Hadani , Salim Shlomo Rakib
CPC classification number: H04L27/2627 , H04B7/005 , H04B7/0619 , H04L5/0007 , H04L5/0016 , H04L5/0044 , H04L23/02 , H04L25/03834 , H04L27/01 , H04L27/2634 , H04L27/265 , H04L27/2655 , H04L27/2697
Abstract: A system and method of providing a modulated signal useable in a signal transmission system. The method includes transforming, perhaps with respect to both time and frequency, a data frame including a plurality of data elements into a transformed data matrix. The transformed data matrix includes a plurality of transformed data elements where each of the plurality of transformed data elements is based upon each of the plurality of data elements. The method further includes generating the modulated signal in accordance with the transformed data elements of the transformed data matrix.
-
45.发明申请公开(公告)号：US20170078054A1
公开(公告)日：2017-03-16
申请号：US15269793
申请日：2016-09-19
Applicant: COHERE TECHNOLOGIES, INC.
Inventor： Ronny Hadani , Shlomo Selim Rakib
CPC classification number: H04L5/0023 , H04L5/003 , H04L27/2602 , H04L27/265 , H04W84/042
Abstract: A method and apparatus for wireless communication compatible with a Long Term Evolution (LTE) communication system. The method includes transforming input data in accordance with a two-dimensional Orthogonal Time Frequency Space (OTFS) transform in order to generate OTFS transformed data. The method includes generating a data frame that contains the transformed data and is structured for use within the LTE communication system. The method further includes transmitting the data frame using an Orthogonal Frequency Division Multiplexing (OFDM) transmitter.
Abstract translation: 一种与长期演进（LTE）通信系统兼容的无线通信方法和装置。 该方法包括根据二维正交时间频率空间（OTFS）变换来变换输入数据，以便生成OTFS变换数据。 该方法包括生成包含经变换的数据的数据帧，并被构造为在LTE通信系统内使用。 该方法还包括使用正交频分复用（OFDM）发射机发送数据帧。
-
Patent Agency Ranking
46.发明申请公开(公告)号：US20160191280A1
公开(公告)日：2016-06-30
申请号：US14809129
申请日：2015-07-24
Applicant: COHERE TECHNOLOGIES, INC.
Inventor： Ronny Hadani , Salim Shlomo Rakib
CPC classification number: H04L27/01 , H04B1/1027 , H04B7/005 , H04L5/0016 , H04L5/0044 , H04L23/02 , H04L25/03834 , H04L27/2634 , H04L27/265 , H04L27/2655 , H04L27/2697
Abstract: A method of receiving data including receiving, on one or more carrier waveforms, signals representing a plurality of data elements of an original data frame wherein each of the data elements are represented by cyclically time shifted and cyclically frequency shifted versions of a known set of waveforms. The method further includes generating, based upon the signals, a received data frame and generating an equalized data frame by performing an equalization operation using elements of the received data frame, the equalization operation correcting for distortion introduced into the signals during propagation of the carrier waveforms through a channel.
Abstract translation: 一种接收数据的方法，包括在一个或多个载波波形上接收表示原始数据帧的多个数据元素的信号，其中每个数据元素由已知的一组波形的循环时移和循环频移版本表示 。 该方法还包括基于信号产生接收到的数据帧并通过使用接收到的数据帧的元素执行均衡操作来生成均衡的数据帧，对载波波形传播期间的信号中引入的失真进行校正的均衡操作 通过渠道。
-
47.发明申请公开(公告)号：US20160182269A1
公开(公告)日：2016-06-23
申请号：US14754596
申请日：2015-06-29
Applicant: COHERE TECHNOLOGIES, INC.
Inventor： Ronny Hadani , Salim Shlomo Rakib
CPC classification number: H04L27/2627 , H04B7/005 , H04B7/0619 , H04L5/0007 , H04L5/0016 , H04L5/0044 , H04L23/02 , H04L25/03834 , H04L27/01 , H04L27/2634 , H04L27/265 , H04L27/2655 , H04L27/2697
Abstract: A system and method of providing a modulated signal useable in a signal transmission system. The method includes transforming, perhaps with respect to both time and frequency, a data frame including a plurality of data elements into a transformed data matrix. The transformed data matrix includes a plurality of transformed data elements where each of the plurality of transformed data elements is based upon each of the plurality of data elements. The method further includes generating the modulated signal in accordance with the transformed data elements of the transformed data matrix.
Abstract translation: 一种提供在信号传输系统中可用的调制信号的系统和方法。 该方法包括可能将时间和频率两者将包括多个数据元素的数据帧变换成变换数据矩阵。 经变换的数据矩阵包括多个经变换的数据元素，其中多个经变换的数据元素中的每一个基于多个数据元素中的每一个。 该方法还包括根据变换后的数据矩阵的变换数据元素生成调制信号。
-
公开(公告)号：US12289148B2
公开(公告)日：2025-04-29
申请号：US17633159
申请日：2020-08-05
Applicant: Cohere Technologies, Inc.
Inventor： Shlomo Selim Rakib , Shachar Kons , Ronny Hadani
Abstract: Methods, systems, and devices for spectral sharing wireless systems, wherein multiple user devices share time and frequency resources for uplink and/or downlink transmissions, are described. One example method includes transmitting transmission symbols from the network station to at least one user device by processing through a first precoder and a pre-compensation stage, wherein the pre-compensation stage is selected to have the transmission symbols receivable at the at least one user device to appear as if the transmission symbols are processed by a second precoder different from the first precoder.
-
公开(公告)号：US12231266B2
公开(公告)日：2025-02-18
申请号：US18624914
申请日：2024-04-02
Applicant: Cohere Technologies, Inc.
Inventor： Shachar Kons , Ronny Hadani , Paul Harris
IPC: H04L25/02 , H04B7/0413 , H04L5/00
Abstract: A wireless communication method includes receiving, by a first wireless device during a training phase, reference tones using a first number of resource elements from a transmitter of a second wireless device, wherein the first wireless device comprises multiple receiving antennas, estimating, by the first wireless device, from the receiving the reference tones, a second order statistics of wireless channels between the multiple receiving antennas and the transmitter of the second wireless device, and performing channel estimation, during an operational phase subsequent to the training phase, using the second order statistics and reference tones received on a second number of resource elements, wherein the second number is less than the first number.
-
公开(公告)号：US11991738B2
公开(公告)日：2024-05-21
申请号：US18351014
申请日：2023-07-12
Applicant: Cohere Technologies, Inc.
Inventor： Andreas Molisch , Ronny Hadani , Robert Fanfelle
IPC: H04W72/542 , H04B17/309 , H04L5/00 , H04L25/02 , H04W72/566
CPC classification number: H04W72/542 , H04B17/309 , H04L5/0007 , H04L5/0048 , H04L25/0226 , H04L25/025 , H04W72/566
Abstract: Methods, devices, and systems for communication techniques that use the quasi-static properties of wireless channels are described. One example method to improve communication performance includes receiving a set of pilots over a transmission channel between the wireless communication apparatus and a far-end communication apparatus, the transmission channel comprising a first portion that is time-invariant and a second portion that is time-variant, processing the received set of pilots to generate an estimate of the first portion, processing the received set of pilots to generate an estimate of the second portion, and performing a communication based on a channel state information that is a weighted combination of a first term based on the estimate of the first portion and a second term based on the estimate of the second portion.
-
-
-
-
-
-
-
-
-
Search Results
158
records
(took 0.028 seconds)
