-
公开(公告)号：US11711253B2
公开(公告)日：2023-07-25
申请号：US17805207
申请日：2022-06-02
发明人： Philipp Walk , Babak Hassibi , Peter Jung
CPC分类号： H04L27/2627 , H04J11/00 , H04L25/0204 , H04L27/2639 , H04L27/2663 , H04L27/26532 , H04J2011/0096
摘要： Systems and methods for transmitting data using various Modulation on Zeros schemes are described. In many embodiments, a communication system is utilized that includes a transmitter having a modulator that modulates a plurality of information bits to encode the bits in the zeros of the z-transform of a discrete-time baseband signal. In addition, the communication system includes a receiver having a decoder configured to decode a plurality of bits of information from the samples of a received signal by: determining a plurality of zeros of a z-transform of a received discrete-time baseband signal based upon samples from a received continuous-time signal, identifying zeros that encode the plurality of information bits, and outputting a plurality of decoded information bits based upon the identified zeros.
-
公开(公告)号：US20240250859A1
公开(公告)日：2024-07-25
申请号：US18615169
申请日：2024-03-25
发明人： Ronny HADANI , Shlomo Selim RAKIB
CPC分类号： H04L27/2639 , H04B7/005 , H04L5/0005 , H04L5/0044 , H04L27/01 , H04L27/10 , H04L27/26532 , H04L27/2655 , H04L27/2697 , H04L5/0016 , H04L23/02 , H04L25/03834
摘要： 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：US11962445B2
公开(公告)日：2024-04-16
申请号：US17755890
申请日：2020-11-09
发明人： Andreas Pfadler , Guillaume Jornod
CPC分类号： H04L27/2602 , H04J11/0023 , H04L5/0048 , H04L27/26532 , H04L27/2666
摘要： A method for detecting OTFS pilot interference including receiving delay-Doppler-domain samples of a received OTFS delay-Doppler frame, wherein the delay-Doppler domain samples are derived by a two-dimensional symplectic Fourier transformation of time-frequency domain samples resulting from sampling a time-varying received OFTS coded signal; summing the squares of the amplitudes of the delay-Doppler domain samples of the delay-Doppler grid positions evaluated for the channel estimation to establish the received non-interfering pilot power; summing the squares of the amplitudes of all the delay-Doppler domain samples of the complete delay-Doppler grid to establish the total received frame power; comparing a pilot power ratio derived by dividing the non-interfering pilot power by the total received frame power with a guard space ratio derived by dividing the sum of the number of guard and pilot grid spaces in the transmitted OTFS frame by the total number of grid spaces of the transmitted OTFS frame.
-
公开(公告)号：US11817987B2
公开(公告)日：2023-11-14
申请号：US16604968
申请日：2018-04-10
发明人： Shachar Kons
CPC分类号： H04L27/2627 , H04L5/0023 , H04L5/0041 , H04L5/0048 , H04L25/03006 , H04L27/2639 , H04L27/2649 , H04L27/26134 , H04L27/26532
摘要： Wireless communication transmission and reception techniques are described. At transmitter, source data bits are modulated into a number Nd of constellation symbols. An invertible transform is applied to the constellation symbols, thereby resulting in mapping the transformed symbols into Nd elements in the time-frequency grid. A signal resulting from the invertible transform is transmitted over a communication channel.
-
公开(公告)号：US20230412444A1
公开(公告)日：2023-12-21
申请号：US18322862
申请日：2023-05-24
发明人： Ronny HADANI , Shlomo Selim RAKIB
CPC分类号： H04L27/2639 , H04B7/005 , H04L27/01 , H04L27/2655 , H04L27/2697 , H04L27/26532 , H04L5/0044 , H04L5/0005 , H04L27/10 , H04L5/0016 , H04L23/02
摘要： 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：US11848810B2
公开(公告)日：2023-12-19
申请号：US17456024
申请日：2021-11-22
IPC分类号： H04L5/00 , H04L27/00 , H04L27/26 , H04B1/3827 , H04L27/20
CPC分类号： H04L27/26532 , H04B1/385 , H04L5/0007 , H04L5/0053 , H04L27/0008 , H04L27/206 , H04L27/2602 , H04L27/2636 , H04L27/2647 , H04L5/0044 , H04L27/26526
摘要： 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.
-
7.发明授权公开(公告)号：US11665041B2
公开(公告)日：2023-05-30
申请号：US17304053
申请日：2021-06-14
发明人： Ronny Hadani , Shlomo Selim Rakib
CPC分类号： H04L27/2639 , H04B7/005 , H04L5/0005 , H04L5/0044 , H04L27/01 , H04L27/10 , H04L27/2655 , H04L27/2697 , H04L27/26532 , H04L5/0016 , H04L23/02 , H04L25/03834
摘要： 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：US12009960B2
公开(公告)日：2024-06-11
申请号：US17938627
申请日：2022-10-06
发明人： Shlomo Selim Rakib , Ronny Hadani
CPC分类号： H04L27/2639 , H04L5/0007 , H04L5/0023 , H04L5/0044 , H04L25/022 , H04L25/0224 , H04L27/2613 , H04L27/26532 , H04W24/02 , H04W72/54 , H04B7/10 , H04L5/0048
摘要： Computerized wireless transmitter/receiver system that automatically uses combinations of various methods, including transmitting data symbols by weighing or modulating a family of time shifted and frequency shifted waveforms bursts, pilot symbol methods, error detection methods, MIMO methods, and other methods, to automatically determine the structure of a data channel, and automatically compensate for signal distortions caused by various structural aspects of the data channel, as well as changes in channel structure. Often the data channel is a two or three dimensional space in which various wireless transmitters, receivers and signal reflectors are moving. The invention's modulation methods detect locations and speeds of various reflectors and other channel impairments. Error detection schemes, variation of modulation methods, and MIMO techniques further detect and compensate for impairments. The invention can automatically optimize its operational parameters, and produce a deterministic non-fading signal in environments in which other methods would likely degrade.
-
9.发明公开公开(公告)号：US20240056343A1
公开(公告)日：2024-02-15
申请号：US18486431
申请日：2023-10-13
IPC分类号： H04L27/26 , H04B1/3827 , H04L5/00 , H04L27/00 , H04L27/20
CPC分类号： H04L27/26532 , H04B1/385 , H04L5/0007 , H04L5/0053 , H04L27/0008 , H04L27/206 , H04L27/2602 , H04L27/2647 , H04L27/2636 , H04L5/0044 , H04L27/26526
摘要： 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：US20230379203A1
公开(公告)日：2023-11-23
申请号：US18357064
申请日：2023-07-21
发明人： Philipp Walk , Babak Hassibi , Peter Jung
CPC分类号： H04L27/2627 , H04L27/2663 , H04L25/0204 , H04L27/26532 , H04L27/2639 , H04J11/00 , H04J2011/0096
摘要： Systems and methods for transmitting data using various Modulation on Zeros schemes are described. In many embodiments, a communication system is utilized that includes a transmitter having a modulator that modulates a plurality of information bits to encode the bits in the zeros of the z-transform of a discrete-time baseband signal. In addition, the communication system includes a receiver having a decoder configured to decode a plurality of bits of information from the samples of a received signal by: determining a plurality of zeros of a z-transform of a received discrete-time baseband signal based upon samples from a received continuous-time signal, identifying zeros that encode the plurality of information bits, and outputting a plurality of decoded information bits based upon the identified zeros.
-
-
-
-
-
-
-
-
-
搜索结果
15 条记录 (耗时 0.02 秒)
