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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.
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公开(公告)号：US20240015725A1
公开(公告)日：2024-01-11
申请号：US18004168
申请日：2021-06-15
发明人： Shlomo Selim RAKIB , Ronny HADANI , Shachar KONS
IPC分类号： H04W72/121 , H04W72/542 , H04L5/14 , H04B7/0456
CPC分类号： H04W72/121 , H04W72/542 , H04L5/14 , H04B7/0456
摘要： 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 wireless communication system includes a network station, and multiple user devices, wherein data transmissions over the same time and frequency resources are shared between multiple user devices, in downlink and/or uplink, using spatial user device separation that is dynamically computed by the network station, and where the network station derives spatial user device separation based on uplink channel measurements.
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公开(公告)号：US20220352933A1
公开(公告)日：2022-11-03
申请号：US17754206
申请日：2020-09-28
发明人： Shlomo Selim RAKIB , Ronny HADANI , Shachar KONS
IPC分类号： H04B7/0456 , H04B7/0408 , H04L5/00 , H04L5/14
摘要： A wireless communication device includes a feed port comprising multiple input feeds, a precoding subsystem that is electrically connected to the feed port; and an antenna subsystem electrically connected to the precoding subsystem. The antenna subsystem is configured to transmit an output signal of the precoding subsystem to multiple wireless stations using multiple beams. The precoding subsystem is configured to perform a precoding operation on an input signal from the feed port, wherein the precoding operation maximizes a desired signal level to interference ratio of transmissions to the multiple wireless stations.
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公开(公告)号：US20210028877A1
公开(公告)日：2021-01-28
申请号：US16946447
申请日：2020-06-22
发明人： Shlomo Selim RAKIB , Ronny HADANI
摘要： An Orthogonal Time Frequency Space Modulation (OTFS) modulation scheme that maps data symbols, along with optional pilot symbols, using a symplectic-like transformation such as a 2D Fourier transform and optional scrambling operation, into a complex wave aggregate and be backward compatible with legacy OFDM systems, is described. This wave aggregate may be processed for transmission by selecting portions of the aggregate according to various time and frequency intervals. The output from this process can be used to modulate transmitted waveforms according to various time intervals over a plurality of narrow-band subcarriers, often by using mutually orthogonal subcarrier “tones” or carrier frequencies. The entire wave aggregate may be transmitted over various time intervals. At the receiver, an inverse of this process can be used to both characterize the data channel and to correct the received signals for channel distortions, thus receiving a clear form of the original data symbols.
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公开(公告)号：US20230138923A1
公开(公告)日：2023-05-04
申请号：US17938627
申请日：2022-10-06
发明人： Shlomo Selim RAKIB , Ronny HADANI
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.
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6.发明申请公开(公告)号：US20210314111A1
公开(公告)日：2021-10-07
申请号：US17304053
申请日：2021-06-14
发明人： Ronny HADANI , Shlomo Selim RAKIB
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.
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公开(公告)号：US20180227159A1
公开(公告)日：2018-08-09
申请号：US15740316
申请日：2016-06-27
发明人： Shlomo Selim RAKIB , Ronny HADANI
CPC分类号： H04L27/2639 , G06F17/147 , H04L1/06 , H04L5/0023 , H04L27/26 , H04L27/2646
摘要： 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.
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公开(公告)号：US20230095995A1
公开(公告)日：2023-03-30
申请号：US18061875
申请日：2022-12-05
发明人： Shlomo Selim RAKIB
摘要： An airborne RF-head platform system and method. Here, much of the computational burden of transmitting and receiving wireless RF waveforms is shifted from the airborne platform to a ground baseband unit (BBU). The airborne platform, which will often be a high altitude balloon or drone type platform, generally comprises one or more remote radio heads, configured with antennas, A/D and D/A converters, frequency converters, RF amplifiers, and the like. The airborne platform communicates with the ground baseband units either directly via a laser communications link, or indirectly through another airborne relay platform. The airborne RF-head communicates via various wireless protocols to various user equipment such as smartphones by using the BBU and the laser communications link to precisely control the function of the airborne A/D and D/A converters and antennas. This system reduces the power needs, weight, and cost of the airborne platform, and also improves operational flexibility.
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公开(公告)号：US20220224464A1
公开(公告)日：2022-07-14
申请号：US17594894
申请日：2020-05-08
发明人： Shlomo Selim RAKIB
IPC分类号： H04L5/00 , H04B7/0452
摘要： Methods, systems and devices for fractional cooperative multipoint network operation are described. One example method for wireless communication includes determining, by a network device, a cooperative multipoint (COMP) management status of wireless devices served by the network device, and providing, by the network device, wireless connectivity to the one or more wireless devices, wherein the network device jointly manages transmission resources for a first wireless device due to the COMP management status being a joint COMP status and the network device locally manages transmission resources for a second wireless device due to the COMP management status being a local COMP status.
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公开(公告)号：US20200305010A1
公开(公告)日：2020-09-24
申请号：US16946119
申请日：2020-06-05
发明人： Ronny HADANI , Shlomo Selim RAKIB
摘要： Fiber, cable, and wireless data channels are typically impaired by reflectors and other imperfections, producing a channel state with echoes and frequency shifts in data waveforms. Here, methods of using pilot symbol waveform bursts to automatically produce a detailed 2D model of the channel state are presented. This 2D channel state can then be used to optimize data transmission. For wireless data channels, an even more detailed 2D model of channel state can be produced by using polarization and multiple antennas in the process. Once 2D channel states are known, the system turns imperfect data channels from a liability to an advantage by using channel imperfections to boost data transmission rates. The methods can be used to improve legacy data transmission modes in multiple types of media, and are particularly useful for producing new types of robust and high capacity wireless communications using non-legacy data transmission methods as well.
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