Interference Or Noise Reduction Patents (Class 375/346)
  • Patent number: 11563514
    Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a network may schedule a user equipment (UE) for multiple transmission/reception point (TRP) communication. The network may transmit a single downlink control information (DCI) message to the UE to dynamically configure multiple transmission configuration indicator (TCI) states for the multiple TRPs. In a first example, the DCI message may include a bit field indicating a set of antenna ports and the multi-TRP scheme for transmission. In a second example, the DCI message may include a separate field indicating the multi-TRP scheme (e.g., based on UE capabilities). In a third example, the DCI may indicate redundancy versions (RVs) for different TRPs in an RV field or across multiple fields. In a fourth example, the DCI may include an indication of a precoding resource block group (PRG) size that may be interpreted differently based on the indicated multi-TRP scheme.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: January 24, 2023
    Assignee: QUALCOMM INCORPORATED
    Inventors: Mostafa Khoshnevisan, Xiaoxia Zhang, Jing Sun, Tao Luo, Arumugam Chendamarai Kannan
  • Patent number: 11563620
    Abstract: Methods, systems, and devices for wireless communications are described that support a single carrier multi-level coding (MLC) amplitude phase shift keying (APSK) modulated waveform. For example, a user equipment (UE) capable to communicate using MLC APSK modulated waveforms may transmit a channel state information (CSI) report, including a recommendation for a waveform configuration, to a base station. The base station may receive the CSI report and may transmit a configuration message to the UE, which may configure the UE with a set of waveform parameters associated with MLC APSK modulation. The UE may receive the configuration message and may communicate with the base station using MLC APSK modulated waveforms and based on the set of waveform parameters, which may reduce phase noise and provide lower peak average power ratio (PAPR) signaling.
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: January 24, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Daniel Paz, Michael Levitsky, Assaf Touboul
  • Patent number: 11533148
    Abstract: A communication device (20) includes a processing unit (232) that performs a NOMA transmission process on a partial range of transmission data to be transmitted to another communication device (40), the NOMA transmission process being signal processing for non-orthogonal multiple access, and a transmitting unit (235) that transmits data obtained after the NOMA transmission process to the another communication device.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: December 20, 2022
    Assignee: SONY CORPORATION
    Inventors: Hiroki Matsuda, Naoki Kusashima
  • Patent number: 11490396
    Abstract: A communication apparatus that performs wireless communication obtains information of a channel with a possibility of interference in wireless communication that is output based on position information of the communication apparatus, position information of a source of a radio wave which has a possibility of interference in the wireless communication, and time information, and selects a channel to be used in the wireless communication. Whether a channel corresponding to the obtained channel information is the currently selected channel is determined, and the currently selected channel is changed to a channel other than the channel corresponding to the obtained channel information if the channel corresponding to the obtained channel information is the same channel as the currently selected channel. If communication is being performed, it is determined after the communication whether the channel corresponding to the obtained channel information is the same channel as the currently selected channel.
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: November 1, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Keigo Tsuchiya, Ayumi Kabata
  • Patent number: 11483024
    Abstract: An Ethernet physical layer (PHY) transceiver includes a transmitter and a receiver. The transmitter is configured to precode a first data stream by summing two or more mutually-delayed replicas of the first data stream, and to transmit the precoded first data stream over a full-duplex wired channel to a peer Ethernet PHY transceiver. The receiver is configured to receive a second data stream from the peer Ethernet PHY transceiver over the full-duplex wired channel, and to decode the received second data stream while the transmitter concurrently is transmitting the precoded first data stream.
    Type: Grant
    Filed: August 27, 2020
    Date of Patent: October 25, 2022
    Assignee: MARVELL ASIA PTE LTD
    Inventors: Shaoan Dai, Xing Wu, Mats Oberg
  • Patent number: 11483184
    Abstract: Some embodiments include apparatus having multiple samplers in a decision feedback equalizer (DFE). The multiple samplers include at least two samplers and are configured to be activated in a first mode of the DFE to receive first input information from a summing circuit. At least one of the samplers is configured to be deactivated in a second mode of the DFE. At least one of the samplers is configured to be activated in the second mode of the DFE to receive second input information from the summing circuit.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: October 25, 2022
    Assignee: Intel Corporation
    Inventors: Yikui Dong, Shenggao Li
  • Patent number: 11474044
    Abstract: Devices and methods for determining the cumulative distribution of a polymer property in a reactor without physical separation of reaction subcomponents. The device includes a means of measuring an instantaneous property of the polymers being produced in a reaction vessel a plurality of times during a polymerization reaction as well as a means of determining the corresponding change in polymer concentration in the reaction vessel between measurements of the instantaneous polymer property The device also includes a means of computing a statistical distribution appropriate to the polymer characteristic and applying the statistical distribution to a recently measured instantaneous value of the polymer property so as to have an instantaneous distribution of the polymer property and a means of adding together the instantaneous distributions of the polymer property in order to obtain the cumulative distribution of the polymer property in the reactor.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: October 18, 2022
    Assignees: ADVANCED POLYMER MONITORING TECHNOLOGIES, INC., THE ADMINISTRATORS OF THE TULANE EDUCATIONAL FUND
    Inventors: Wayne Frederick Reed, Rick D. Montgomery, Michael Felix Drenski, Aide Wu
  • Patent number: 11456897
    Abstract: A communication apparatus 300 includes a first channel estimating unit 131 configured to perform a first channel estimation at a first frequency using a reference signal included in a signal sequence, a first weight information generating unit 133 configured to generate first weight information based on the first channel estimation, a synthesis processing unit 135 configured to perform weighted synthesis processing based on the first weight information, a second channel estimating unit 137 configured to perform a second channel estimation at a second frequency higher than the first frequency using a reference signal included in the signal sequence subjected to the weighted synthesis processing, a second weight information generating unit 139 configured to generate second weight information based on the second channel estimation, and a demodulation processing unit 141 configured to perform demodulation processing of the signal sequence subjected to the weighted synthesis processing based on the second weight i
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: September 27, 2022
    Assignee: NEC CORPORATION
    Inventor: Motoya Iwasaki
  • Patent number: 11456818
    Abstract: The invention belongs to the field of low-power consumption Bluetooth technology in wireless communication, in particular to a method for improving the sensitivity of the receiver in a low-power consumption Bluetooth system. The method of the invention is to introduce a deinterleaver between the symbol pattern mapper and GFSK modulator of the transmitting terminal under the low-power consumption Bluetooth coding mode, which is used to perform additional processing on the bitstream data and then perform modulation; then, due to the introduction of interleaving, Turbo iterative processing of demodulation and decoding can be performed at the receiving terminal; the receiving terminal comprises a Turbo iterative demodulator and decoder, which is used to model the low-power consumption Bluetooth GFSK modulator and convolutional coder into finite state machines, and then combine the deinterleaver to use the BCJR algorithm for iterative demodulation and decoding.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: September 27, 2022
    Assignee: FUDAN UNIVERSITY
    Inventors: Yi Jiang, Jie Yang, Qinghe Du, Rui Wang, Wei Zhang, Fengjie Li
  • Patent number: 11438046
    Abstract: A method of performing channel estimation in a multiple-input-multiple-output (MIMO) communication system comprising a downlink device and an uplink device arranged to communicate over a communication channel, the method including at the uplink device: analyzing a first channel vector representing channel gains between the downlink device and a first antenna of the uplink device in the angular domain to identify a set of angular domain support points; generating from the set of angular domain support points a value vector; and feeding back from the uplink device to the downlink device an indication of the value vector; and at the downlink device: analyzing a second channel vector representing channel gains between the downlink device and a second antenna of the uplink device; generating a transmit steering matrix; and generating an estimate of the first channel vector.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: September 6, 2022
    Assignee: British Telecommunications Public Limited Company
    Inventors: Linglong Dai, Jingbo Tan, Bichai Wang, Richard MacKenzie, Mo Hao
  • Patent number: 11431367
    Abstract: The present invention relates to a system for cancelling interference in a full-duplex wireline communication link. The communication link has a transceiver at each end and configured to transmit a signal and receive a signal. The transceiver comprises: a self-interference (SI) canceller module configured to subtract self-interference of the signal transmitted by the transceiver from the signal received by the same transceiver in analog domain; and an echo canceller module configured to subtract reflected version of the signal transmitted by the transceiver from the signal received by the same transceiver in analog domain.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: August 30, 2022
    Assignee: INDIAN INSTITUTE OF TECHNOLOGY, BOMBAY
    Inventors: Shalabh Gupta, Pranav Agarwal, Sandeep Goyal
  • Patent number: 11432369
    Abstract: A user equipment (UE) can include processing circuitry coupled to memory. To configure the UE for New Radio (NR) communications above a 52.6 GHz carrier frequency, the processing circuitry is to decode radio resource control (RRC) signaling to obtain a cyclic shift value in time domain. The cyclic shift value is associated with a demodulation reference signal (DM-RS) antenna port (AP) of a plurality of available DM-RS APs. A single carrier based waveform DM-RS sequence corresponding to the DM-RS AP is generated using a base sequence and the cyclic shift value. The single carrier based waveform DM-RS sequence is encoded with uplink data for transmission to a base station using a physical uplink shared channel (PUSCH) using a carrier above the 52.6 GHz carrier frequency.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: August 30, 2022
    Assignee: Apple Inc.
    Inventors: Gang Xiong, Yushu Zhang, Dae Won Lee, Alexei Vladimirovich Davydov, Seunghee Han, Jie Zhu, Dmitry Belov, Debdeep Chatterjee, Andrey Chervyakov, Fatemeh Hamidi-Sepehr, Hong He, Toufiqul Islam, Jeongho Jeon, Alexey Vladimirovich Khoryaev, Lopamudra Kundu, Yongjun Kwak, Jose Armando Oviedo, Sergey Panteleev, Mikhail Shilov, Sergey Sosnin, Salvatore Talarico, Jan Zaleski
  • Patent number: 11418286
    Abstract: Implementations of this disclosure generally may relate to the field of wireless communications. More specifically, implementations described in this disclosure relate to different 3GPP LTE and LTE-A system enhancements to address the issue and support reliable V2X operation in the high mobility environments. Several solutions to improve the V2X system performance in the high mobility vehicular channel propagation conditions are described. Some aspects relate to the suggestion of a new DMRS patterns within individual subframes that promote more accurate CFO estimation. Moreover, another aspect provides DMRS mapping or puncturing patterns to transmit individual DMRS in a periodic pattern on respective OFDM/SC-FDMA symbols so that they do not occupy all REs of the OFDM/SC-FDMA symbols, respectively.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: August 16, 2022
    Assignee: Apple Inc.
    Inventors: Andrey Chervyakov, Alexey Khoryaev, Dmitry Belov, Mikhail Shilov, Sergey Sosnin
  • Patent number: 11418310
    Abstract: A method for operating a communications controller adapted for full duplex (FD) operation includes receiving a measurement report from a user equipment served by the communications controller, the measurement report indicating a first power margin between a current transmit power and a transmit power break point and a second power margin between the current transmit power and a maximum transmit power capable of supporting FD operation, performing FD link adaptation (LA) in accordance with the first power margin and the second power margin to adjust one or more FD configuration parameters of a link between the communications controller and the user equipment, wherein the link includes a downlink and an uplink, and instructing the user equipment to communicate over the link in accordance with the one or more FD configuration parameters.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: August 16, 2022
    Assignee: Futurewei Technologies, Inc.
    Inventors: Bin Liu, Richard Stirling-Gallacher, Jian Wang, Lili Zhang
  • Patent number: 11402485
    Abstract: A system and method is disclosed where an operating state may be determined by selecting one or more transmitting nodes for transmitting one or more radio-frequency (RF) signals. One or more receiving nodes may receive the one or more RF signals that may include one or more channel state data. The operating state may be determined based on one or more features extracted from the one or more channel state data. Another system and method is disclosed where a range compensation value may be determined by transmitting a radio-frequency (RF) signal from at least one transmitting node. The one or more receiving nodes may receive the RF signal and a channel state data may be estimated using the signal. The range compensation value may be determined using the channel state data and a position value indicating a location of the at least one transmitting node.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: August 2, 2022
    Assignee: Robert Bosch GmbH
    Inventors: Vivek Jain, Sushanta Mohan Rakshit, Yunze Zeng
  • Patent number: 11387871
    Abstract: A technique is provided including at least obtaining a noise and interference covariance matrix, performing scaling of the noise and interference covariance matrix, determining a sum of diagonal elements of the scaled noise and interference covariance matrix, performing a first spectral shift by the sum to the scaled noise and interference covariance matrix to obtain a first spectral shifted matrix, performing eigenvalue decomposition to the first spectral shifted matrix to obtain an eigenvalue matrix, performing a second spectral shift by the sum to the eigenvalue matrix, limiting the eigenvalue matrix to a diagonal matrix, and obtaining a new noise and interference covariance matrix adding the scaled noise and interference covariance matrix and eigenvalue pairs that are obtained based, at least partly, on the performed eigenvalue decomposition.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: July 12, 2022
    Assignee: Nokia Technologies Oy
    Inventors: Olli Piirainen, Jaakko Vihriälä, Ori Shental, Sivarama Venkatesan, Juha Myllylä
  • Patent number: 11372081
    Abstract: For example, a MIMO radar may include a plurality of Tx chains to process a plurality of digital Tx signals for transmission of a plurality of Tx RF signals; a plurality of Rx chains configured to output a plurality of digital Rx signals based on a plurality of Rx RF signals and a plurality of digital leakage-cancellation signals, wherein an Rx chain of the plurality of Rx chains is configured to output a digital Rx signal based on an Rx RF signal and a digital leakage-cancellation signal corresponding to the Rx chain; and a digital MIMO filter to generate the plurality of digital leakage-cancellation signals based on the plurality of digital Tx signals, the digital MIMO filter configured to generate the digital leakage-cancellation signal corresponding to the Rx chain by applying to the plurality of digital Tx signals a respective plurality of filters corresponding to the Rx chain.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: June 28, 2022
    Assignee: INTEL CORPORATION
    Inventors: Mark A. Lehne, Dan Ohev Zion, Alon Cohen, Arnaud Amadjikpe
  • Patent number: 11374599
    Abstract: Circuits for identifying interferers using compressed-sampling, comprising: a low noise amplifier (LNA); a passive mixer having a first input coupled to an output of the LNA; a local oscillator (LO) source having an output coupled to a second input of the passive mixer; a low pass filter having an input coupled to an output of the passive mixer; an analog-to-digital converter (ADC) having an input coupled to the output of the low pass filter; a digital baseband (DBB) circuit having an input coupled to an output of the ADC; and a compression-sampling digital-signal-processor (DSP) having an input coupled to the output of the DBB circuit, wherein the compression-sampling DSP is configured to output identifiers of frequency locations of interferers, wherein, in a first mode, the LO source outputs a modulated LO signal that is formed by modulating an LO signal with a pseudo-random sequence.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: June 28, 2022
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Tanbir Haque, Peter R. Kinget, Matthew W. Bajor
  • Patent number: 11346884
    Abstract: A signal analysis method is disclosed. The method comprises the following steps: An input signal comprising a symbol sequence is received, wherein the input signal is associated with a first clock signal comprising at least one jitter component. A second clock signal is recovered based on said input signal. At least one jitter parameter is determined that is associated with said at least one jitter component. A jitter signal is reconstructed based on said at least one jitter parameter, wherein said jitter signal is associated with said at least one jitter component. A third clock signal is determined based on said second clock signal and said jitter signal. Further, a measurement instrument is disclosed.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: May 31, 2022
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Adrian Ispas, Julian Leyh
  • Patent number: 11296816
    Abstract: A method of signal demodulation includes receiving, by a signal receiver, a first signal modulated by a symbol corresponding to a point in a constellation; generating, by the signal receiver and on the basis of the first signal, a modulation estimate; identifying, by the signal receiver and on the basis of the modulation estimate, a row or column of a candidate lookup table, the row or column corresponding to a region of the constellation; reading, by the signal receiver, from the row or column of the candidate lookup table one or more candidate points of the constellation, at least one among the one or more candidate points being more distant, from a center of the region, than a point, in the constellation, not among the one or more candidate points, and demodulating, by the signal receiver and on the basis of the one or more candidate points, the first signal.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: April 5, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Farrokh Etezadi, Hyukjoon Kwon, Jooyeol Yang
  • Patent number: 11295083
    Abstract: Techniques for named-entity recognition are described. An exemplary implementation of a method includes extracting character features for each word of the document using a first encoder; extracting word level representations of for each word position using a second encoder, the word level representations being a concatenation of spelling variants; classifying the word level representations according to a first decoder; and outputting the classifications as named-entity labels.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: April 5, 2022
    Assignee: Amazon Technologies, Inc.
    Inventors: Hyokun Yun, Yaser Al-Onaizan
  • Patent number: 11291014
    Abstract: A device, system and method for radio-frequency emissions control is provided. The device comprises: a communication unit configured to communicate via main radio channels and a control channel, the main radio channels contributing to radio-frequency (RF) emissions; and a controller interconnected with the communication unit. The controller is configured to: receive, via the communication unit communicating over the control channel, an RF emissions control command to reduce the RF emissions emitted by the communication unit; and in response to receiving the RF emissions control command, control one or more of the communication unit and activity on the main radio channels to reduce the RF emissions.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: March 29, 2022
    Assignee: MOTOROLA SOLUTIONS, INC.
    Inventors: Robert T. Croswell, Bruce D. Mueller, Rodger W. Caruthers, Duane S. Andres, Randall Brace
  • Patent number: 11283536
    Abstract: A method and a network node (700) serving a first cell in a wireless network, for reducing interference in a second cell caused by transmission of reference signals in the first cell. The network node (700) transmits (7:2) in the first cell a scheduling block where a number of said reference signals are located in predefined resource element positions in the scheduling block, using a time offset relative transmission of a scheduling block in the second cell. Thereby, the impact of interference from a reference signal from one network node will be distributed over several resource elements in the other network node so that the impact in each resource element is reduced, as compared to when all interference from the reference signal hits one single resource element when no time offset is used.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: March 22, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: David Sandberg, Mats Åhlander, Ari Kangas
  • Patent number: 11277287
    Abstract: In one example, a communications circuit processes an amplitude modulated signal by using a first circuit having signal paths to process an amplitude modulated signal as represented by an in-phase component and by a quadrature component, and by using a second circuit to discern random noise pulses from the quadrature component of the amplitude modulated signal. In response, the second circuit generates an estimate of overall noise representing the random noise pulses in the amplitude modulated signal. In the above and more specific examples, the random noise pulses may appear as pulses which overlap with, in terms of time and bandwidth of frequency spectrum, information of the amplitude modulated signal, and the first and second circuits may be part of an RF radio receiving the amplitude modulated signal from an antenna.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: March 15, 2022
    Assignee: NXP B.V.
    Inventors: Joris Louis L Luyten, Christophe Marc Macours, Temujin Gautama
  • Patent number: 11272382
    Abstract: Systems, methods, and devices reduce interference experienced by wireless communications devices. Methods include receiving a first signal from a first transceiver, the first signal being compatible with a first communications protocol, and configuring a filter based, at least in part, on the received first signal, the filter being communicatively coupled to a second transceiver collocated in a same wireless communications device as the first transceiver. The methods further include receiving a second signal, the second signal being compatible with a second communications protocol, and filtering the second signal to remove at least some components of the first signal from the second signal, the filtering reducing at least some interference from the first signal with the second signal. The methods also include providing the filtered second signal to the second transceiver.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: March 8, 2022
    Assignee: Cypress Semiconductor Corporation
    Inventors: Ankit Sharma, Ayush Sood, Suprojit Mukherjee, Ashok Nimmala, Rajendra Kumar Gundu Rao
  • Patent number: 11265032
    Abstract: A method and apparatus for intermodulation product (IMP) cancellation. In one embodiment, the method comprises: acquiring copies of source signals that create IMPs in a passband of interest; creating copies of the IMPs for use as IMP cancellation signals by either multiplying the source signals together as a series of digital samples such that the multiplied signals create a near real and continuous time copy of the IMPs or creating a sum of the source signals in near real and continuous time and convolving the sum of the source signals with a mathematical model to effectively multiply the signals together to create a copy of the IMPs; adjusting one or both of phase and amplitude of the copies; and using the copies to cancel the IMPs inband of the passband of interest.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: March 1, 2022
    Assignee: FINESSE WIRELESS, LLC
    Inventor: Francis J. Smith
  • Patent number: 11258643
    Abstract: In at least one embodiment of the invention, a method for reducing a dynamic range of a received radio frequency signal includes receiving digital IQ signals corresponding to an in-phase component of the received radio frequency signal and a quadrature component of the received radio frequency signal. The method includes demodulating the digital IQ signals to generate an instantaneous frequency signal. The method includes selecting a center frequency of a selectable filter according to whether an interfering signal is detected in a target frequency band of the received radio frequency signal. The center frequency is selected from a predetermined frequency and an estimated center frequency determined using the instantaneous frequency signal. The method includes filtering the digital IQ signals using the selectable filter configured using the center frequency to generate output digital IQ signals.
    Type: Grant
    Filed: May 18, 2021
    Date of Patent: February 22, 2022
    Assignee: Skyworks Solutions, Inc.
    Inventor: Alexander August Arthur Hakkola
  • Patent number: 11251522
    Abstract: A radio frequency antenna system is provided and can include a radio printed circuit board, a first antenna element located proximate an edge of the radio printed circuit board, a second antenna element located proximate the edge of the radio printed circuit board, and a cancelation circuit located on the radio printed circuit board and connected to feeding points of the first antenna and the second antenna, wherein the cancelation circuit can provide a cancelation effect at output ports of the cancelation circuit with respect to signals broadcast by the first antenna element and the second antenna element over air.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: February 15, 2022
    Assignee: Ademco Inc.
    Inventor: Michal Pokorny
  • Patent number: 11228383
    Abstract: A system configured to perform a method for estimating external noise in a communication channel between a transmitter and a receiver is described. The method comprises obtaining a measurement of effective noise on decoded symbols at the receiver, the decoded symbols comprising noisy versions of symbols conveyed by a communication signal transmitted over the communication channel. The method further comprises storing a representation of a relationship between the effective noise, external noise in the communication channel, and one or more variable parameters. The method further comprises storing applicable values of the variable parameters, wherein each applicable value is associated with current properties of the transmitter or current properties of the receiver or both. The method further comprises calculating an estimate of the external noise in the communication channel using the effective noise, the applicable values of the variable parameters, and the representation of the relationship.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: January 18, 2022
    Assignee: CIENA CORPORATION
    Inventors: Andrew D. Shiner, David Boertjes, Michael Andrew Reimer, Maurice O'Sullivan
  • Patent number: 11219024
    Abstract: Wireless communication under IEEE 802.11 standards utilizing carrier specific interference mitigation where an AP or UE employs an ultra-wideband tuner to evaluate available spectrum between several communication bands. Rather than being constrained to communicate in a single communication band, the AP and UEs may utilize more than one communication band to communicate with one another. In doing so, the AP and UE search across several bands and measure interference on a carrier-by-carrier basis across those bands. Either of the AP and UE may select a cluster of carriers for communication, where the cluster of carriers may comprise 1) contiguous carriers in a single sub-channel, 2) contiguous carriers spanning across more than one sub-channel, 3) discontinuous carriers in a single sub-channel, or 4) discontinuous carriers spanning across more than one sub-channel. The mapping between a cluster and its carriers can be fixed or reconfigurable.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: January 4, 2022
    Assignee: NETGEAR, Inc.
    Inventor: Michael Clegg
  • Patent number: 11218980
    Abstract: Disclosed are systems, devices and methods for transmission of messages between wireless transceiver devices including fields representing values such as, for example, a range between devices, time of transmission of a message or time of receipt of a previous message. In particular embodiments, message may also comprise fields to express a maximum error in values representing range, time of transmission of a message or time of receipt of a previous message.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: January 4, 2022
    Assignee: QUALCOMM Incorporated
    Inventor: Carlos Horacio Aldana
  • Patent number: 11194934
    Abstract: A new computational machine is invented, called a clock machine, that is a novel alternative to computing machines (digital computers) based on logic gates. In an embodiment, computation is performed with one or more clock machines that use time. In an embodiment, a cryptographic cipher is implemented with random clock machines, constructed from a non-deterministic process, wherein the compiled set of instructions (i.e., the implementation of the cryptographic procedure) is distinct on each device or chip that executes the cryptographic cipher. In an embodiment, by using a different set of clock machines to execute two different instances of the same cryptographic procedure, each execution of a procedure looks different to malware that may try to infect and subvert the cryptographic procedure. This cryptographic process also makes timing attacks more challenging. In an embodiment, a detailed implementation of the Midori cipher with random clock machines is described.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: December 7, 2021
    Assignee: Aemea Inc.
    Inventor: Michael Stephen Fiske
  • Patent number: 11177892
    Abstract: A method of analyzing at least one periodic horizontal impairment component of an input signal is described. The input signal is received that includes at least a periodic horizontal impairment component. The at least one periodic horizontal impairment component is analyzed based on a first model, thereby obtaining a first estimated parameter set for each analyzed periodic horizontal impairment component. The at least one periodic horizontal impairment component is analyzed based on a second model, thereby obtaining a second estimated parameter set for each analyzed periodic horizontal impairment component. The first model is different to the second model. Further, the present disclosure provides a measurement instrument.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: November 16, 2021
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Adrian Ispas, Julian Leyh
  • Patent number: 11152978
    Abstract: A communication device includes a processing circuit, the processing circuit being configured as: mapping a first information bit part used for a receiving end to a corresponding channel based on a pre-set mapping rule so as to execute spatial modulation with respect to the first information bit part of the receiving end; allocating a transmission power to the receiving end; and controlling the transmission power allocated through a mapped channel to transmit a second information bit part used for the receiving end. In the case of the first information bit parts used for multiple receiving ends being the same, the channels mapped for multiple receiving ends are the same. The multi-user spatial modulation performs spatial modulation for multiple receiving ends at the same time through a multiplexing channel of the transmitting end, improving the additional modulation order and the data transmission rate which can be obtained by each receiving end.
    Type: Grant
    Filed: June 24, 2020
    Date of Patent: October 19, 2021
    Assignee: SONY CORPORATION
    Inventors: Xudong Zhu, Zhaocheng Wang, Jianfei Cao
  • Patent number: 11153133
    Abstract: An integrated circuit equalizes a data signal expressed as a series of symbols. The symbols form data patterns with different frequency components. By considering these patterns, the integrated circuit can experiment with equalization settings specific to a subset of the frequency components, thereby finding an equalization control setting that optimizes equalization. Optimization can be accomplished by setting the equalizer to maximize symbol amplitude.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: October 19, 2021
    Assignee: Rambus Inc.
    Inventor: Ramin Farjad-Rad
  • Patent number: 11152967
    Abstract: There is provided systems and methods for mitigating interference from an interference signal. In one implementation the system comprises cancellation circuitry configured to: receive a first signal from a first antenna, the first signal comprising an interference component deriving from the interference signal and a desired component deriving from a desired signal; and receive a second signal comprising an interference component deriving from the interference signal and received at one or more of a different antenna or a different frequency to the first signal. The interference component in the second signal is stronger than that the interference component in the first signal. The cancellation circuitry is further configured to derive a cancellation signal from the second signal; generate an output signal by subtracting the cancellation signal from the input signal to substantially remove the interference component from the first signal; and output the output signal.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: October 19, 2021
    Assignee: THALES HOLDINGS UK PLC
    Inventors: Gary Dent, Leslie David Westbrook, Sze-Ching Lu, Simon Delaney
  • Patent number: 11115946
    Abstract: An operating method of a terminal in a wireless communication system including a cell and the terminal includes receiving an external signal including a synchronization signal block (SSB) from the cell, the SSB including a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH), obtaining a cell identification number of the cell using the PSS and the SSS, determining a plurality of decoding priorities of a plurality of candidate indexes of the SSB, and performing decoding on the PBCH based on the plurality of decoding priorities.
    Type: Grant
    Filed: November 11, 2019
    Date of Patent: September 7, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dahae Chong, Haechul Lee, Joohyun Do, Myungjoon Shim, Sungyoon Cho
  • Patent number: 11112483
    Abstract: An apparatus, method, or computer-readable storage medium encoded with computer-executable instructions that, when executed by a computer, cause the computer to carry out a method for determining one or more directions of arrival of one or more coherent or incoherent signals with a single radio frequency channel. The apparatus may comprise: a plurality of antenna elements (110) configured to determine the one or more coherent or incoherent signals; a plurality of radio frequency switches (120) configured to selectively activate one or more of the plurality of antenna elements; and a radio frequency combiner (140) configured to combine a plurality of radio frequency signals from one or more selectively activated antenna elements of the plurality of antenna elements.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: September 7, 2021
    Assignee: Lockheed Martin Corporation
    Inventor: Tommy Lam
  • Patent number: 11112507
    Abstract: A method may be executed by a base station or mobile device to improve accuracy of a global positioning system (GPS)-based position or “geoposition” of the mobile device. A time-stamped first set of GPS data may be received via a GPS receiver, e.g., of the base station. A second set of GPS data describing a geoposition of the mobile device is received from the mobile device by the base station. A time of collection of the base station and mobile device GPS data coincides. The GPS data includes code phase and pseudo-range data from each of the GPS satellites, and may include carrier phase data. A predetermined GPS position correction technique is used to generate a corrected geoposition of the mobile device using the GPS data. The corrected geoposition is then transmitted to the mobile device and/or an external response system such as a drone or first responder.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: September 7, 2021
    Assignee: UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF NASA
    Inventor: Evan T. Dill
  • Patent number: 11108536
    Abstract: A method for implementing an efficient clock recovery for multilane high-speed Serializer/Deserializer (SerDes) system having M interleaved lanes, has a non-recursive architecture.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: August 31, 2021
    Assignee: Mellanox Technologies, Ltd.
    Inventors: Hananel Faig, David (Dima) Rohlin, Matan Groen
  • Patent number: 11082059
    Abstract: A computer-executable method and system for querying sensor data of a plurality of sensors is provided. Sensor data is received that comprising sensor data values sampled by a first sensor of said plurality of sensors according to a first compressive sampling scheme. The first compressive sampling scheme can be applied by the first sensor within a sampling time window and the received sensor data corresponds to samples of a signal within the sampling time window. The sensor data is stored in a first database. A frequency decomposition of the signal is computed based on a sparsifying transform associated with the first compressive sampling scheme and the received sensor data. The frequency decomposition comprises one or more frequency components. The one or more frequency components are stored in a second database. A query is received from a client. The query specifies an event that indicates a critical signal condition of a signal.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: August 3, 2021
    Assignee: Teraki GmbH
    Inventors: Daniel Lampert Richart, Markus Kopf
  • Patent number: 11076419
    Abstract: The present invention relates to a method and an apparatus for transmitting and receiving data in a wireless communication system. The present invention may provide a method comprising the steps of: receiving, from a terminal, an urgent signal indicating the occurrence of an event related to an urgent situation; and transmitting, to at least one terminal included in a cell, a response signal for notifying the at least one terminal of the occurrence of the event.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: July 27, 2021
    Assignee: LG ELECTRONICS INC.
    Inventors: Eunjong Lee, Heejeong Cho, Genebeck Hahn, Ilmu Byun
  • Patent number: 11063629
    Abstract: Various embodiments include techniques for detecting a poor-quality cable associated with a wired communications channel that is causing noise that interferes with a wireless communications channel. The techniques are directed towards a test that a processor performs when the cable is installed in a user system. A wireless test application, executing on one or more processors of the system, determines a noise floor for the wireless communications channel when the wired communications channel is disabled. The wireless test application determines the noise power for the wireless communications channel when the wired communications channel is enabled, thereby causing interference in the wireless communications channel. The wireless test application compares the noise power to the noise floor in order to determine whether the cable is a high-quality cable or a low-quality cable.
    Type: Grant
    Filed: October 14, 2020
    Date of Patent: July 13, 2021
    Assignee: NVIDIA Corporation
    Inventors: Srirama Bhupatiraju, Tom Winton
  • Patent number: 11057061
    Abstract: Apparatuses and methods for simultaneously operating as a wireless radio and monitoring the local frequency spectrum. For example, described herein are wireless radio devices that use a secondary receiver to monitor frequencies within the operating band and prevent or avoid interferers, including in particular half-IF interferers. The systems, devices, and methods described herein may adjust the intermediate frequency in a superheterodyne receiver to select an intermediate frequency that minimizes interference. In particular, described herein are apparatuses and methods that use a second receiver which is independent of the first receiver and may be connected to the same receiving antenna to monitor the geographically local frequency spectrum and may detect spurious interferers, allowing the primary receiver to adjust the intermediate frequency and avoid spurious interferes.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: July 6, 2021
    Assignee: UBIQUITI INC.
    Inventors: Lance D. Lascari, Robert J. Pera
  • Patent number: 11057066
    Abstract: A filtering arrangement for a wireless communication receiver is disclosed. The filtering arrangement comprises an input port configured to receive a digital signal, wherein the digital signal has a signal bandwidth and comprises a desired signal, dividing circuitry configured to divide the digital signal into two or more signal parts, wherein the two or more signal parts comprise two edge signal parts, and a respective processing branch associated with each of the two or more signal parts. A processing branch configured to process a respective edge signal part comprises a digital edge filter configured to filter the edge signal part, determination circuitry configured to determine whether an un-desired signal is comprised in the edge signal part, and frequency shifting circuitry configured to frequency shift the edge signal part responsive to determination by the determination circuitry. Corresponding wireless communication receiver, filtering method and computer program product are also disclosed.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: July 6, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Magnus Nilsson, Peter Jakobsson
  • Patent number: 11050458
    Abstract: A node is provided for a cooperative broadcast multi-hop network that employs broadcast flood routing and multi-hop transmission. The node includes antennas and a waveform module having a receiver processing chain that can include an adaptive space-spectrum whitener (ASSW) module and a multi-user RAKE (mRAKE) receiver. Each antenna can receive output a channel that includes direct-sequence spread-spectrum signals received from other nodes and multi-path components of those transmissions. The ASSW module can perform adaptive space-spectrum whitening to detect and remove interference signals received from each of the channels by performing a covariance analysis to generate channelized signals. The ASSW module can include modified Discrete Fourier Transform (MDFT) analysis and synthesis modules that generate an interference mitigated time-domain channelized signals.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: June 29, 2021
    Assignee: General Dynamics Mission Systems, Inc.
    Inventors: Scott David Blanchard, David Kunil Lee
  • Patent number: 11044000
    Abstract: Embodiments of the present invention disclose a scheduling method, a base station, and a terminal. The method includes: performing, by a base station according to a preset matrix, orthogonal encoding on logical port information corresponding to a downlink reference signal, and mapping the logical port information obtained after the orthogonal encoding to a corresponding physical channel for sending; receiving channel quality indicator information fed back by a terminal, and calculating a spectral efficiency gain obtained after wavelength division multiplexing; and performing, according to the spectral efficiency gain, radio resource scheduling for the wavelength division multiplexing.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: June 22, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Pengcheng Zhang
  • Patent number: 11038636
    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.
    Type: Grant
    Filed: February 18, 2020
    Date of Patent: June 15, 2021
    Assignee: Cohere Technologies, Inc.
    Inventors: Ronny Hadani, Shlomo Selim Rakib
  • Patent number: 11026145
    Abstract: A method and a device for adaptive channel access are disclosed. In an embodiment includes adaptively adjusting, by a small base station (SBS), access parameters for small cells to ensure quality of service (QoS) to cellular users while minimizing collision probability for WiFi users.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: June 1, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Amine Maaref
  • Patent number: 11012196
    Abstract: The present disclosure refers to base stations, user equipment and a system for wireless communication, as well as the corresponding wireless communication methods implementing mechanisms enabling fast, reliable and resource efficient retransmissions between a base station and one or a plurality of user equipment. The present disclosure is specifically directed to an uplink unicast case and a downlink multicast case and cooperates a proactive allocation of resources for a retransmission of the initial data in case that the initial data transmission fails, and a new data transmission if the initial data transmission successes.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: May 18, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Chan Zhou, Alexandros Kaloxylos, Ramya Panthangi Manjunath