Antinoise Or Distortion Patents (Class 375/285)
  • Patent number: 11575460
    Abstract: A wireless networking system is provided. The wireless networking system includes a base station device including processing circuitry configured to detect a transmission rate from a portion of a preamble of an incoming packet transmission signal and adapt a radio configuration to receive a remainder of the incoming packet transmission signal at the transmission rate.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: February 7, 2023
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Tusher Chakraborty, Zerina Kapetanovic, Deepak Vasisht, Ranveer Chandra
  • Patent number: 11502759
    Abstract: The present disclosure provides a circuitry distortion corrector for correcting distortions of electrical signals. The circuitry distortion corrector comprises a first correction filter that filters the received signals, and a second correction filter that is coupled to the first correction filter and filters the signals that are filtered by the first correction filter. The first correction filter operates based on first filter coefficients that are based on first value tuples, each first value tuple comprising a first frequency and a respective first circuitry characterizing value, and wherein the first frequencies are equally spaced apart, and the second correction filter operates with second filter coefficients that are based on second value tuples, each second value tuple comprising a second frequency and a respective second circuitry characterizing value, wherein the second frequencies are logarithmically spaced apart.
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: November 15, 2022
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Andrew Schaefer, Andreas Ziegler
  • Patent number: 11503541
    Abstract: A method of a network node adapted to transmit a wake-up signal for waking up one or more wireless communication receivers is disclosed, as well as a method for the wireless communication receiver, such network node and wireless communication receiver, and computer programs for implementing the methods. Each wireless communication receiver is comprised in a wireless communication device and is associated with a wake-up radio adapted to wake up the wireless communication receiver in response to detecting the wake-up signal. An indication of a maximum frequency error of the wake-up radio associated with the wireless communication receiver is acquired such that a non-data transmission bandwidth for exclusive use by the wake-up signal can be determined. The wake-up signal is transmitted over a wake-up signal transmission frequency interval having a wake-up signal transmission bandwidth, wherein the wake-up signal transmission bandwidth is less than, or equal to, the non-data transmission bandwidth.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: November 15, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Leif Wilhelmsson, Miguel Lopez
  • Patent number: 11477058
    Abstract: An inter-carrier interference method comprises: receiving one or more OFDM signal comprising plural blocks of OFDM subcarriers of a first type and plural blocks of OFDM subcarriers of a second type, wherein the frequencies of the subcarriers of each block of OFDM subcarriers of the first type are contiguous and wherein the plural blocks of subcarriers of the first type are distributed amongst the plural blocks of subcarriers of the second type; for each of the plural blocks of subcarriers of the first type, estimating inter-carrier interference components; estimating inter-carrier interference components for the subcarriers of the second type using the inter-carrier interference components estimated for the plural blocks of subcarriers of the first type; and compensating for inter-carrier interference in the plural blocks of subcarriers of the second type using the inter-carrier interference components estimated for the sub-carriers of the second type, thereby to generate plural compensated blocks of subcarri
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: October 18, 2022
    Assignee: NOKIA TECHNOLOGIES OY
    Inventors: Tero Ihalainen, Kari Pajukoski, Toni Levanen, Ville Syrjälä
  • Patent number: 11431102
    Abstract: An information handling system (IHS) includes a multiple antenna system. The multiple antenna system includes a first antenna system, the first antenna system comprising a first antenna and a first reflector network; a second antenna system, the second antenna comprising a second antenna and a second reflector network, at least one of the first reflector network and the second reflector network comprising a configurable pattern reflector; and, an antenna control system, the antenna control system controlling configuration of the configurable pattern reflector.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: August 30, 2022
    Assignee: Dell Products L.P.
    Inventors: Changsoo Kim, Sumana Pallampati, Suresh Ramasamy, Ching Wei Chang
  • Patent number: 11424897
    Abstract: A user equipment (UE) may multiplex peak suppression information message (PSIM) on a physical uplink shared channel (PUSCH) with data for efficient implementation of PSIMs for peak to average power ratio (PAPR) reduction. A UE may clip peaks from a signal to be transmitted and capture information of the clipped peaks into a PSIM. The UE may then multiplex the PSIM on the PUSCH such that a receiving device (for example, a base station) may receive the signal and reconstruct the signal (for example, PUSCH data) using the PSIM. According to some aspects, each PUSCH symbol may include a PSIM for a previous PUSCH symbol (for example, such that causality is preserved if multiplexing PSIM and data for each PUSCH symbol). Various aspects of the techniques described herein may further provide for PSIM positioning in frequency, PSIM modulation, PSIM channel coding, PSIM multiple-input multiple-output (MIMO) configurations, among other examples.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: August 23, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Ory Eger, Assaf Touboul, Noam Zach, Sharon Levy, Guy Wolf, Shay Landis, Ran Berliner
  • Patent number: 11375187
    Abstract: A filter is configured for processing a reconstructed frame for generation of a filtered reconstructed frame, and wherein the reconstructed frame comprises a plurality of pixels. The filter includes one or more processor configured to scan a current pixel of the reconstructed block and its neighboring pixels of the current pixel according to a predefined scan template, obtain spectrum components by performing transform for the current pixel and its neighboring pixels, obtain filtered spectrum components based on a filtering parameter and the spectrum components, obtain filtered pixels by performing inverse transform for the filtered spectrum components, and generate a filtered reconstructed block based on the filtered pixels.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: June 28, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Sergey Yurievich Ikonin, Victor Alexeevich Stepin, Alexander Alexandrovich Karabutov, Elena Alexandrovna Alshina, Roman Igorevich Chernyak, Jianle Chen, Dmitry Yurievich Kuryshev
  • Patent number: 11375400
    Abstract: The present technology relates to a wireless communication apparatus and method by which communication can be performed with a higher efficiency. The wireless communication apparatus includes a preamble generation section that generates a preamble that is to be deployed at the top of a transmission frame and includes header information, a midamble generation section that generates a midamble that is to be deployed in the middle of the transmission frame and includes information of at least part of the header information, and a wireless transmission processing section that transmits the transmission frame including the preamble and the midamble. The present technology can be applied to a wireless communication apparatus.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: June 28, 2022
    Assignee: SONY CORPORATION
    Inventors: Shigeru Sugaya, Ren Sugai, Yuichi Morioka
  • Patent number: 11361779
    Abstract: An apparatus for processing an audio signal includes a configurable first audio signal processor for processing the audio signal in accordance with different configuration settings to obtain a processed audio signal, wherein the apparatus is adapted so that different configuration settings result in different sampling rates of the processed audio signal. The apparatus furthermore includes n analysis filter bank having a first number of analysis filter bank channels, a synthesis filter bank having a second number of synthesis filter bank channels, a second audio processor being adapted to receive and process an audio signal having a predetermined sampling rate, and a controller for controlling the first number of analysis filter bank channels or the second number of synthesis filter bank channels in accordance with a configuration setting.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: June 14, 2022
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Markus Lohwasser, Manuel Jander, Max Neuendorf, Ralf Geiger, Markus Schnell, Matthias Hildenbrand, Tobias Chalupka
  • Patent number: 11329854
    Abstract: Provided are a data modulation method and apparatus, and a storage medium. The method includes: modulating a first data sequence to obtain a second data sequence; inserting a third data sequence into the second data sequence to obtain a fourth data sequence, where each of data, except for a first one and a last one in the fourth data sequence, of the third data sequence in the fourth data sequence satisfies that power of the each datum is equal to average power of two data adjacent to the each datum, and a phase of the each datum is within an angle between the two data adjacent to the each datum; and transmitting the fourth data sequence.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: May 10, 2022
    Assignee: XI'AN ZHONGXING NEW SOFTWARE CO., LTD.
    Inventors: Yu Xin, Luanjian Bian, Guanghui Yu, Jin Xu
  • Patent number: 11329703
    Abstract: A method of transmitting an amplitude shift keyed signal uses a multi-layered transmission over a plurality of transmit antennas with different precoding of different symbols for the respective layers. The method comprises obtaining a sequence of bits to be conveyed, keying the sequence of bits to a signal, precoding the signal to respective layer, and transmitting the precoded signal. A transmitter for transmitting the amplitude shift keyed signal, and a computer program for implementing the method are also disclosed.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: May 10, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Leif Wilhelmsson, Erik G. Larsson, Emil Björnson
  • Patent number: 11310084
    Abstract: A physical layer transceiver for a wireline channel medium includes a host interface to a host device, a line interface to the medium, encoding/decoding circuitry for interfacing between the host device and the medium, and adaptive filter circuitry coupled to the encoding/decoding circuitry. The adaptive filter circuitry includes a plurality of filter taps, each corresponding to a segment of the medium, and capable of being powered ON and OFF separately from each other filter tap. Adaptive control circuitry can power ON a first subset, fewer than all the filter taps, corresponding to segments distributed along the medium, monitor powered-ON filter taps for occurrence of interference events, and upon detection of an interference event at a particular segment to which a particular powered-ON filter tap corresponds, power ON one or more additional filter taps corresponding to one or more segments in a vicinity of the particular segment.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: April 19, 2022
    Assignee: Marvell Asia Pte, Ltd.
    Inventors: David Shen, Oliver Weiss
  • Patent number: 11303377
    Abstract: Techniques are described for carrier frequency offset (CFO) and channel estimation of orthogonal frequency division multiplexing (OFDM) transmissions over multiple-input multiple-output (MIMO) frequency-selective fading channels. A wireless transmitter forms blocks of symbols by inserting training symbols within two or more blocks of information-bearing symbols. The transmitter applies a hopping code to each of the blocks of symbols to insert a null subcarrier at a different position within each of the blocks of symbols, and a modulator outputs a wireless signal in accordance with the blocks of symbols. A receiver receives the wireless signal and estimates the CFO, and outputs a stream of estimated symbols based on the estimated CFO.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: April 12, 2022
    Assignee: Regents of the University of Minnesota
    Inventors: Georgios B. Giannakis, Xiaoli Ma
  • Patent number: 11294032
    Abstract: A Doppler radar sensor with a power detector is disclosed. In the Doppler radar sensor, a power detector is provided to detect the power level of a received transmission signal, and a leakage and clutter canceler is provided to generate a cancellation signal according to the power level of the received transmission signal. The cancellation signal is used to cancel leakage and clutter in the received transmission signal such that object displacement in the received transmission signal can be identified.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: April 5, 2022
    Assignees: Sil Radar Technology Inc., National Cheng Kung University, NCKU Research and Devvelopment Foundation
    Inventors: Huey-Ru Chuang, Chien-Chang Chou, Wen-Chian Lai
  • Patent number: 11283494
    Abstract: A communication system where a central node (base-station or access point) communicates with multiple clients in its neighbourhood using transparent immediate beam-forming. Resource allocation and channel access is such that the central node does not necessarily know when each client starts its transmission. Receive beam-forming in such a system is not possible, as beam-forming coefficients for each client should be selected according to the particular channel realization from that client to the central node. Each client is detected early in its transmission cycle, based on either a signature that is part of the physical characteristics unique to that client, or based on a signature that is intentionally inserted in the clients' signal, and accordingly adjusts its beam-forming coefficients.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: March 22, 2022
    Inventor: Amir Keyvan Khandani
  • Patent number: 11271571
    Abstract: Multi-mode non-return-to-zero (NRZ) and orthogonal differential vector signaling (ODVS) clock and data recovery circuits having configurable sub-channel multi-input comparator (MIC) circuits for forming a composite phase-error signal from a plurality of data-driven phase-error signals generated using phase detectors in a plurality of receivers configured as ODVS sub-channel MICs generating orthogonal sub-channel outputs in a first mode and a separate first and second data driven phase-error signal from two receivers of a plurality of receivers configured as NRZ receivers in a second mode.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: March 8, 2022
    Assignee: KANDOU LABS, S.A.
    Inventors: Armin Tajalli, Ali Hormati
  • Patent number: 11245428
    Abstract: This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for a DPD training procedure. A base station may transmit, for a plurality of iterations, a signal to at least one UE through a plurality of transmit chains and with application of DPD. The signal transmitted for each iteration may be transmitted with a BW that extends over a plurality of subcarriers and includes pilots extending over a BW subset that increases in subcarrier size for each iteration. The base station may receive, for each iteration, feedback from the at least one UE based on the transmitted signal and apply DPD to each of the plurality of transmit chains based on the feedback. Accordingly, the base station may transmit to one or more UEs through the plurality of transmit chains and with application of the DPD pilot signals that extend over the entire BW.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: February 8, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Igor Gutman, Michael Levitsky, Assaf Touboul, Ronen Shaked
  • Patent number: 11190283
    Abstract: The application discloses a polar system and a delay difference calibration method. The polar system includes: a calibration signal generation unit, a CORDIC, a delay difference generation unit, a transmission unit, a receiving unit, a Fourier transformer and a calibration unit. The receiving unit is configured to receive a transmission signal from the transmission unit. The Fourier transformer is configured to compute a power of a receiving signal at a specific frequency. The calibration unit is configured to control the delay difference generation unit and determine a delay difference calibration value in a calibration mode.
    Type: Grant
    Filed: September 26, 2020
    Date of Patent: November 30, 2021
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventor: Tzu Ming Kao
  • Patent number: 11169944
    Abstract: To perform communication more definitely and efficiently. Communication is performed by a master that is a communication device having a communication initiative and a slave that is a communication device that performs communication under control of the master. The master assigns a group address to an arbitrary slave of a plurality of slaves joining in a bus setting a plurality of arbitrary slaves to one group and setting the group to a destination, and when it is confirmed that at least one or more slaves exit from the bus of the slaves to which the group address is assigned, the group address assigned to the remaining slaves is reset. The present technology is, for example, applicable to a bus IF.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: November 9, 2021
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Hiroo Takahashi, Naohiro Koshisaka
  • Patent number: 11152977
    Abstract: A method of sounding and feedback with channel quality information and reduced overhead is provided. A receiving station receives a sounding signal transmitted from an access point over multiple sub-channels of a wide channel in a wireless network. The receiving station detects channel quality based on the received sounding signal for each sub-channel. The receiving station then performs channel estimation based on the received sounding signal and thereby determining feedback information. Finally, the receiving station transmits a feedback message to the access point, the feedback message contains NULL feedback information, reduced feedback information, or channel integrity/quality indicators based on the channel quality information for each sub-channel. Based on the feedback message, the access point may repeat the sounding process, narrow the transmission bandwidth, or select only stations who have indicated uncorrupted channel sounding for MU-MMO transmission.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: October 19, 2021
    Assignee: MEDIATEK SINGAPORE PTE. LTD.
    Inventors: James June-Ming Wang, Jianhan Liu, Vishakan Ponnampalam, Chao-Chun Wang, Huanchun Ye
  • Patent number: 11153775
    Abstract: A method for receiving a downlink signal from a base station (BS) by a user equipment (UE) in a wireless communication system is disclosed. The method includes receiving power multiplexing information from the BS, receiving a reference signal and the downlink signal from the BS, calculating reception power of an interference signal from reception power of the downlink signal, using the reference signal and the power multiplexing information, and acquiring a data signal of the UE by eliminating the reception power of the interference signal from the reception power of the downlink signal.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: October 19, 2021
    Assignee: LG ELECTRONICS INC.
    Inventors: Hyungtae Kim, Kijun Kim, Hanbyul Seo, Bonghoe Kim, Yunjung Yi
  • Patent number: 11101918
    Abstract: Techniques are described for wireless communication at a wireless device. One method includes transmitting, during a TTI, a first message using a first MCS; and transmitting, during the TTI, a second message using a second MCS. The first message includes indications of a location, a heading, and a speed of the wireless device, and the second MCS is higher than the first MCS. Another method includes decoding a first message received during a TTI; performing a Doppler effect compensation for a second message based at least in part on the first message; and decoding the second message based at least in part on the Doppler effect compensation. The second message is also received during the TTI. The first message is decoded in accordance with a first MCS, and the second message is decoded in accordance with a second MCS, with the second MCS being higher than the first MCS.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: August 24, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Kapil Gulati, Shailesh Patil, Junyi Li, Sudhir Kumar Baghel, Zhibin Wu, Libin Jiang, Tien Viet Nguyen, Georgios Tsirtsis, Durga Prasad Malladi
  • Patent number: 11075732
    Abstract: Techniques are provided for reference signal transmissions and transmit power ratio determination in non-orthogonal transmissions. A traffic-to-pilot power ratio (TPR) may be determined for a base layer for a non-orthogonal channel and another TPR may be determined for an enhancement layer for the non-orthogonal channel. Reference signal transmissions may be transmitted by a base station at a reference signal transmission power, and a user equipment (UE) may estimate channel quality for the base layer or the enhancement layer based at least in part on an energy level of the received reference signal and one or more of the first TPR or the second TPR. A base station may transmit TPR signaling that may indicate one or more TPR values for one or both of the base layer or enhancement layer.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: July 27, 2021
    Assignee: Qualcomm Incorporated
    Inventors: Jing Sun, Tao Luo, Hao Xu, Yongbin Wei, Durga Prasad Malladi
  • Patent number: 11050479
    Abstract: A first communication device for communicating with a second communication device over a link that is utilized at the substantially same time and with the substantially same frequency resource by a pair of further communication devices. The first communication device comprises one or more antenna arrays with which beamforming can be performed, a controller configured to apply beamformers to control beamforming by the one or more antenna arrays, and circuitry configured to determine whether at least one of the beamformers satisfies an interference condition such that a level of interference leaked to the further communication devices by the first communication device is below a defined threshold, and if available, select the at least one beamformer for communicating with the second communication device.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: June 29, 2021
    Assignee: SONY CORPORATION
    Inventors: Dana Ciochina, Thomas Handte, Nabil Sven Loghin, Felix Fellhauer
  • Patent number: 11032822
    Abstract: A base station may maintain multiple beam pair links, with one being actively used for communication. The active beam pair may become blocked. Accordingly, it may be necessary to switch to another beam pair. The apparatus may be an apparatus for wireless communication. The apparatus for wireless communication may include a memory and at least one processor coupled to the memory. The at least one processor is configured to determine a set of active beam pairs including at least a first beam pair and a second beam pair and select the first beam pair. The at least one processor is also configured to predict that the first beam pair is blocked, the prediction based on an expiration of a timer and sweep through the set of active beam pairs based on predicting that the first beam pair is blocked.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: June 8, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Jing Sun, Tao Luo, Makesh Pravin John Wilson, Xiao Feng Wang
  • Patent number: 10986644
    Abstract: Aspects of the present disclosure provide for beam management in wireless communication systems. In some examples, beam angle information (e.g., angles of arrival/departure) may be utilized to select one or more serving downlink beams for communication between a scheduling entity and a scheduled entity. The beam angle information may further be utilized to facilitate additional operations within a backhaul network, such as wireless node locating, obstacle locating, system mapping within the network topology, beam determination and beam sweeping configuration, and mobility management among wireless nodes of a backhaul network. In other examples, aperiodic uplink beam measurements may be triggered based on downlink beam measurement reports and/or in response to a request from a scheduled entity. The scheduling entity may then jointly select uplink and downlink beams based on both the received downlink beam measurement report and uplink beam measurements.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: April 20, 2021
    Assignee: Qualcomm Incorporated
    Inventors: Jianghong Luo, Navid Abedini, Junyi Li, Sundar Subramanian, Juergen Cezanne, Muhammad Nazmul Islam
  • Patent number: 10985824
    Abstract: A channel state information feedback method includes: generating, by a transmit-end device, codebook indication information of K transport layers, where K is an integer greater than or equal to 1; and for each of at least one of the K transport layers, the codebook indication information includes narrowband superposition coefficients of N sub-bands of the layer, where a quantity of the narrowband superposition coefficients of the N sub-bands is less than R(L?1)*N, N is an integer greater than or equal to 2, R is a quantity of polarization directions and R is an integer greater than or equal to 1, and L is a quantity of pieces of beam information used by the K transport layers and L is an integer greater than or equal to 2; and sending, by the transmit-end device, the codebook indication information.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: April 20, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Huangping Jin, Peng Jiang, Wei Han, Peng Shang
  • Patent number: 10985955
    Abstract: The invention provides a method for automatically identifying a modulation mode for a digital communication signal. The method comprises the following steps of: S1: preprocessing a training digital modulation signal; S2: extracting a characteristic value of the training digital modulation signal; S3: constructing a strong classifier by Bagging learning; and S4: preprocessing a modulation signal to be tested and extracting a corresponding characteristic parameter, and then inputting the characteristic parameter into the strong classifier in the S3 to classify and identify the modulation signal. According to the method, by processing all characteristic values in parallel, a success rate of identification has little to do with an identification performance of a single characteristic parameter and is mainly related to an overall performance, so that the identification to the modulation mode has the advantages of fast identification speed and high success rate of identification.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: April 20, 2021
    Assignee: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
    Inventors: Fangjiong Chen, Wensong Zhang, Zeng Hu, Fei Ji, Hua Yu
  • Patent number: 10972234
    Abstract: A network node device includes a radio transceiver configured to receive a data sequence from a plurality of user equipments (UEs) over first and second sets of resource elements, wherein the first set of resource elements is mapped non-orthogonally and the second set is mapped orthogonally. The network node device further comprises a processor configured to determine channel vectors based at least in part on the data sequence received over the first set of resource elements or over the second set of resource elements, and to utilize the data sequence as received over the second set of resource elements to associate the determined channel vectors with each of the plurality of UEs.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: April 6, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Majid Nasiri Khormuji
  • Patent number: 10965508
    Abstract: An apparatus and method for transmission of a single-carrier waveform from multiple transmit antennas including both a reference signal and data in a discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-s-OFDM) symbol.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: March 30, 2021
    Inventors: Sony Akkarakaran, Xiaoxia Zhang, Tao Luo
  • Patent number: 10945272
    Abstract: A method performed by a wireless device (121, 122) for determining Channel State Information, CSI, estimates to be transmitted in a CSI report for the wireless device (121, 122) to a network node (110) in a radio communications network (100) is provided. The wireless device (121, 122) receives a message comprising an indication to use CSI estimates corresponding to a determined period of time. In response to said message, the wireless device (121, 122) determines CSI estimates to be used in the CSI report to the network node (110) according to the received indication. A wireless device (121, 122) is also described. A network node (110) and method therein for controlling CSI estimates transmitted by one or more wireless devices (121, 122) in CSI reports to the network node (110) in a radio communications network (100) are also provided.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: March 9, 2021
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Mattias Frenne, Qiang Zhang, Henrik Sahlin, Stefan Parkvall, Håkan Andersson, Johan Furuskog
  • Patent number: 10944440
    Abstract: A method of processing a radio frequency signal includes: receiving the radio frequency signal at an antenna of a receiver device; processing, by a radio frequency front-end device, the radio frequency signal; converting, by an analog-to-digital converter, the analog signal to a digital signal; receiving, by a neural network, the digital signal; and processing, by the neural network, the digital signal to produce an output.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: March 9, 2021
    Assignee: BOOZ ALLEN HAMILTON INC.
    Inventors: Michael Calabro, Mehrnaz Mortazavi, Wade Leonard, Zachary Rohde, Alex Saunders
  • Patent number: 10943524
    Abstract: A device for generating restoration data by descrambling scramble data includes a linear feedback shift register configured to receive a first clock including a plurality of edges and sequentially generate a plurality of seeds including first to N?1th seeds (where N is a natural number of 2 or greater) respectively corresponding to first to N?1th edges among the plurality of edges, a seed calculator configured to calculate an Nth seed corresponding to an Nth edge among the plurality of edges by using the first seed, and a descrambler configured to descramble the scramble data by using the plurality of seeds generated by the linear feedback shift register and the Nth seed calculated by the seed calculator. The linear feedback shift register is further configured to generate an N+1th seed by using the Nth seed.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: March 9, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong-Chul Choi, Sung-Ho Kang, June-Hee Lee, Han-Kyul Lim, Byung-Wook Cho
  • Patent number: 10938610
    Abstract: A method for transmitting a phase noise compensation reference signal, a transmission device and a reception device are provided. The method includes: determining one or more configurations from N configurations for a transmission resource of the phase noise compensation reference signal; and transmitting the phase noise compensation reference signal according to the one or more configurations. The N configurations have different time-domain densities or different frequency-domain densities, or a plurality of configurations of the N configurations has a same time-domain density and a same frequency-domain density, where N is an integer greater than or equal to 2.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: March 2, 2021
    Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Hui Li, Qiubin Gao, Xin Su, Runhua Chen, Rakesh Tamrakar, Qiuping Huang, Chuanjun Li, Mengjun Wang
  • Patent number: 10931324
    Abstract: Techniques for a communication device with a receiver to dynamically control the gain of an analog front end of the receiver. Rather than having a single circuit path in the analog front end, the analog front end includes multiple circuit paths, and dynamically selects one of the circuit paths that optimizes the gain of the analog front end. For example, an amplifier circuit path may be selected to amplify the power level of the signal received from the antenna. However, the analog front end may further include an attenuator circuit path that includes an attenuator to reduce the power level of a high-power input signal received from the antenna to ensure that the high-power signal is attenuated below a power level associated with saturation of the receiver.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: February 23, 2021
    Assignee: Amazon Technologies, Inc.
    Inventors: Ravi Ichapurapu, Basak Oyman
  • Patent number: 10931427
    Abstract: A network node receives a first signal in a first grant-free transmission from a client device, wherein the first signal comprises data having a first redundancy version and having a corresponding first transmission attempt number, in a first resource unit; determines an identity of the client device based on the first signal, establishes that a data decoding error associated with the first grant-free transmission has occurred if the data in the first signal cannot be decoded correctly; receives a second signal in a second transmission from the client device, wherein the second signal comprises the data having a second redundancy version and having a corresponding second transmission attempt number, in a second resource unit; and establishes that a data decoding error associated with the second transmission has occurred if the data in the second signal cannot be decoded correctly.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: February 23, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Chaitanya Tumula, Neng Wang, Sergei Semenov
  • Patent number: 10909964
    Abstract: A person support apparatus, such as a bed, cot, stretcher, or the like, includes an active noise cancellation device configured to generate a noise cancelling sound wave that is designed to cancel a noise sound wave. The active noise cancellation device may include speakers and a microphone. In other embodiments, the person support apparatus includes a sound emitting component and a transmitter adapted to send out a notification signal prior to activation of the sound emitting component. The notification signal provides information about a characteristic of the sound to be emitted by the sound emitting device. The recipient of the notification signal may then use the signal to cancel the sound that is to be emitted. In some embodiments, the person support apparatus acts as a conduit for notification signals of upcoming sounds, receiving and forwarding such notification signals from and to other devices.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: February 2, 2021
    Assignee: Stryker Corporation
    Inventors: Krishna Sandeep Bhimavarapu, Christopher Ryan Sweeney, William Dwight Childs
  • Patent number: 10904065
    Abstract: Disclosed are a method and a device for performing sidelink communication in a wireless communication system. Specifically, the method performed by a first terminal may comprise a step of transmitting a specific sidelink message including at least one piece of information among first information and second information to a second terminal, wherein: a transmission period of the first information is set to be longer than a transmission period of the second information; a first modulation order to be applied to the first information and a second modulation order of the second information are set differently from each other; and when the first information and the second information are concurrently transmitted through the specific sidelink message, modulation symbols of the first information and modulation symbols of the second information are mapped by considering a requirement noise ratio for each of the first modulation order and the second modulation order.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: January 26, 2021
    Assignee: LG ELECTRONICS INC.
    Inventors: Myoungseob Kim, Hanbyul Seo
  • Patent number: 10897279
    Abstract: A receiver includes a first T-coil circuit at an input of the receiver and configured to receive an input signal, a termination impedance coupled to the first T-coil circuit and configured to match an impedance of a transmission line coupled to the first T-coil circuit, and an amplifier including a first input and a second input and configured to amplify a differential signal at the first and second inputs, a calibration switch coupled to the amplifier and configured to selectively electrically connect or disconnect the first and second inputs of the amplifier, and a first receive switch configured to selectively electrically connect or disconnect a center node of the first T-coil circuit and the amplifier.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: January 19, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Xiong Liu, Hiep Pham
  • Patent number: 10892924
    Abstract: Disclosed herein is a demodulation method of a Layer-Division Multiplexing (LDM) system. The demodulation method may include receiving an LDM modulation signal, restoring a first-layer signal from the LDM modulation signal and remodulating the first-layer signal, restoring and remodulating a second-layer signal by performing cancellation of the amplitude component of the first-layer signal from the LDM modulation signal using signaling information independently of restoration and remodulation of the first-layer signal, and restoring a third-layer signal using the first-layer signal, the second-layer signal, and the LDM modulation signal.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: January 12, 2021
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jae-Hwui Bae, Sun-Hyoung Kwon, Young-Su Kim, Dong-Joon Choi, Nam-Ho Hur
  • Patent number: 10880148
    Abstract: The disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as long term evolution (LTE). According to various embodiments, a transmission device in a wireless environment may include a transceiver, and a processor operatively coupled to the transceiver. The processor may be configured to generate a codeword related to transmission data, generate symbols from the codeword by using a plurality of transmission symbol vectors determined using a linear combination of vectors corresponding to respective rows of a lattice generation matrix, and transmit a signal generated based on the symbols via the transceiver.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: December 29, 2020
    Assignees: Samsung Electronics Co., Ltd., Postech Academy-Industry Foundation
    Inventors: Jongbu Lim, Namyoon Lee, Jiwook Choi, Chanhong Kim, Yeohun Yun, Sungnam Hong
  • Patent number: 10879746
    Abstract: A wireless power transmitting device transmits wireless power signals modulated at a given power frequency to a wireless power receiving device using a wireless power transmitting coil. The wireless power receiving device may transmit data signals to the wireless power transmitting device. The wireless power transmitting device may include a data receiver that is coupled to the wireless power transmitting coil and that receives the transmitted data. The data receiver may include an input stage, bandpass filter circuitry, demodulator circuitry, and a data stream combiner. The data receiver may further include a power supply noise cancellation circuit. The power supply noise cancellation circuit may include an input stage, a baseband filter, a window filter, a down-sampler, and a difference filter. The power supply noise cancellation circuit may be coupled to the data stream combiner and is configured to mitigate power supply noise interference in the received data.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: December 29, 2020
    Assignee: Apple Inc.
    Inventors: Moshe H. Malkin, Manu Agarwal, Brandon R. Garbus
  • Patent number: 10855358
    Abstract: This application provides a channel state information feedback method and an apparatus. The method includes: generating first frequency domain indication information and M1 pieces of first precoding indication information, where the first frequency domain indication information is used to indicate L1 frequency domain subbands in T frequency domain subbands, the T frequency domain subbands are a system bandwidth or a part of the system bandwidth, 1?L1<T, the T frequency domain subbands are in a one-to-one correspondence with T precoding matrices, and a precoding matrix wk corresponding to a kth frequency domain subband satisfies: Wk=W1×W2k, where w1 represents a matrix with Nt rows and R columns, and W2k represents a matrix with R rows and S columns; and w1 represents a matrix with Nt rows and R columns, and W2k represents a matrix with R rows and S columns.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: December 1, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Ruiqi Zhang, Kunpeng Liu, Xueru Li
  • Patent number: 10834615
    Abstract: A beam selection method and apparatus suitable for millimeter wave (mmW) communication systems is disclosed. In one aspect, a user equipment (UE) may perform a beam sweep procedure to identify suitable downlink beams candidates from one or more gNBs. The UE may generate a beam list by selecting some of the downlink beams for active tracking. When beams on the beam list become unavailable, the UE may compare the number of available beams on the beam list with a threshold value. If the number of available beams falls below the threshold, the UE may perform another beam sweep procedure.
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: November 10, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Vasanthan Raghavan, Valentin Gheorghiu, Jung Ryu, Junyi Li
  • Patent number: 10825480
    Abstract: A method for automatically producing a video and audio mix at a first portable electronic device. The method receives a request to capture video and audio, performs a network discovery process to find a second portable electronic device, and sends a message to the second device indicating when to start recording audio for a double system recording session. The method initiates the recording session, such that both devices record concurrently. In response to the first device stopping the recording of audio and sound, signaling the second device to stop recording for the identified recording session. In response to the first device receiving a first audio track from the second device that contains an audio signal recorded during the recording session, automatically generating a mix of video and audio, such that one of the audio signals from the first and second tracks is ducked relative to the other.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: November 3, 2020
    Assignee: Apple Inc.
    Inventors: Todd P. Marco, Girault W. Jones, Kavitha Srinivasan, Aram M. Lindahl
  • Patent number: 10805857
    Abstract: Apparatuses, methods, and systems for charactering and selecting micro-routes between nodes of a wireless network are disclosed. One method includes characterizing a plurality of micro-routes between the first node and the second node, wherein the plurality of micro-routes includes a micro-route and at least one other micro-route, including directing a first beam formed by antennas of the first node to a plurality of directions, for each of the plurality of directions of the first beam, directing a second beam formed by antennas of the second node to a plurality of directions, characterizing a link quality between the first node and the second node for each of the plurality of beam directions of the first beam and each of the plurality of beam directions of the second beam, classifying a plurality of clusters of characterized link qualities that include characterized link qualities greater than a threshold.
    Type: Grant
    Filed: April 13, 2019
    Date of Patent: October 13, 2020
    Assignee: Facebook, Inc.
    Inventors: Krishna Gomadam, Djordje Tujkovic, Sanjai Kohli
  • Patent number: 10785060
    Abstract: A communication system that minimizes the transmission of pilot symbols while ensuring real-time channel tracking and symbol detection. The system employs a multiple-input multiple-output (MIMO) transmitter-receiver pair where there are many more receive antennas than transmit antennas. Communication occurs over a wide band RF channel via orthogonal frequency division multiplexing (OFDM) that employs a large number of sub-carriers.
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: September 22, 2020
    Assignee: SYRACUSE UNIVERSITY
    Inventors: Biao Chen, Michael Gans, John Matyjas
  • Patent number: 10771098
    Abstract: A method for determining phase noise in a periodically modulated signal is described. The modulated signal is processed to generate a processed signal from the modulated signal. At least an approximate period of a modulation of the modulated signal is determined from the processed signal. The type of modulation of the modulated signal is determined from the processed signal. The modulated signal is demodulated based on the determined period and the determined type of modulation to generate a demodulated signal, and the phase noise is determined from the demodulated signal. Moreover, a measurement device is described.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: September 8, 2020
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Luke Cirillo, Andreas Lagler, Alexander Breitenfeld
  • Patent number: 10756783
    Abstract: A system for trans-horizon tropospheric-based wireless communication is provided. The system provides high availability and capacity as compared to a line-of-sight (LOS) standard microwave radio link while using very low height antenna towers. The system includes n×n MIMO transceiver circuitry and two or more antennas and adaptive modulation and demodulation in response to slow varying pathloss. Each of the two or more antennas is located at a vertical height above an average sea mean level within the evaporation duct. Availability percentage for different pathloss ranges along with adaptive modulation contributes to the overall availability according to the varying evaporation duct height.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: August 25, 2020
    Assignee: PETOLIAM NASIONAL BERHAD (PETRONAS)
    Inventors: Varun Jeoti, Asif Iqbal, Khurram Shabih Zaidi, Micheal Drieberg, Peng Wen Wong, M Sharif Osman
  • Patent number: 10749660
    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: February 15, 2018
    Date of Patent: August 18, 2020
    Assignee: Futurewei Technologies, Inc.
    Inventors: Bin Liu, Richard Stirling-Gallacher, Jian Wang, Lili Zhang