Patents Examined by Vineeta S. Panwalkar
  • Patent number: 11956006
    Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for performing wireless communication using digital post distortion, for example, with a large antenna array where the number of transmit antennas may be greater than a number of spatial streams. A transmitting device and a receiving device determine a perturbed precoding matrix based on a precoding perturbation rule. The transmitting device precodes a signal using the perturbed precoding matrix and transmits via the number of antennas greater than the number of spatial streams. The receiving device receives the signal and subtracts non-linearities from the received signal based on a channel estimation using the perturbed precoding matrix over one or more iterations.
    Type: Grant
    Filed: July 1, 2022
    Date of Patent: April 9, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Elad Meir, Gideon Shlomo Kutz, Yaron Laufer, Amit Bar-Or Tillinger
  • Patent number: 11943084
    Abstract: A method includes generating a data signal based on data, scrambling the data signal with a pseudo-random signal thereby generating a scrambled data signal, generating an amplitude shift keying (ASK) signal based on the scrambled data signal, and transmitting, by a transceiver, the ASK signal.
    Type: Grant
    Filed: July 13, 2022
    Date of Patent: March 26, 2024
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Kuandong Gao, Mao Yan, Huang Huang
  • Patent number: 11942956
    Abstract: Provided is a time-to-digital converter, comprising a phase frequency detector configured to receive a phase-locked loop input clock and a feedback clock, a ring oscillator configured to perform oscillation with multi-phase clocks of a first period, a counter array configured to count the number of oscillations in which the ring oscillator oscillates in a first period by the number of positive integers during the first pulse width, a multiplexer configured to divide the first period into a plurality of zones using edge information of the multi-phase clocks of the ring oscillator, and selects and outputs voltage information of a plurality of neighboring phase clocks included in a first zone from the plurality of zones, an analog-to-digital converter, a calibrator, and a first adder, wherein the calibrator comprises, an offset lookup table generation circuit, a gain-corrected analog-to-digital conversion output generator, and a second adder.
    Type: Grant
    Filed: August 11, 2022
    Date of Patent: March 26, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min Seob Lee, Shin Woong Kim, Joon Hee Lee, Sang Wook Han
  • Patent number: 11943016
    Abstract: Presented herein are techniques to shield transmissions from being received and the information contained in them recovered by unwanted devices. Multi-user multiple-input multiple-output (MU-MIMO) techniques are employed, and in particular the spatial dimension aspects of those techniques. Shield nodes are controlled to transmit in a way to obscure the downlink streams transmitted by a wireless access point that are intended for a particular client device to anything outside of the shielded area, and also to obscure uplink streams from one or more client devices to the wireless access point to anything outside of the shielded area but allowing the uplink streams to be well received by the wireless access point.
    Type: Grant
    Filed: November 17, 2022
    Date of Patent: March 26, 2024
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: John Matthew Swartz, Nagendra Kumar Nainar, Matthew Aaron Silverman
  • Patent number: 11943018
    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) having partially coherent antennas may be configured for simultaneous transmissions on groups of antennas. To achieve the benefits of simultaneous transmissions using groups of antenna that are partially coherent, without having the transmissions affect each other, the UE may apply a hybrid closed-loop multiple-input multiple-output (MIMO) scheme among each antenna in the antenna groups where phase coherence can be maintained. Following the hybrid closed-loop MIMO scheme, the UE may apply a transparent diversity scheme across each antenna of the groups. Alternatively, the UE may first apply the transparent diversity scheme and next apply the hybrid closed-loop MIMO scheme. By applying a hybrid closed-loop MIMO scheme, and a transparent diversity scheme, the UE may fully realize its resources and contribute to an improved spatial diversity for a MIMO system.
    Type: Grant
    Filed: January 27, 2023
    Date of Patent: March 26, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Yi Huang, Gokul Sridharan, Wei Yang, Taesang Yoo, Peter Gaal
  • Patent number: 11929814
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network node may determine a reference location associated with a virtual image corresponding to a target area. The network node may transmit a radio frequency signal, wherein the radio frequency signal is beamformed based at least in part on the reference location to direct the radio frequency signal to the target area. Numerous other aspects are described.
    Type: Grant
    Filed: July 5, 2022
    Date of Patent: March 12, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Danlu Zhang, Yu Zhang, Tingfang Ji
  • Patent number: 11923887
    Abstract: Systems, devices, and techniques for allowing communication between two or more computing devices are described herein. For example, a method includes receiving, by a first computing device configured to operate in accordance with a first wireless protocol, one or more data packets via one or more signals output by a second computing device according to a second wireless protocol, where the first computing device is not configured to operate in accordance with the second wireless protocol. Additionally, or alternatively, a method includes receiving, by a first computing device configured to operate in accordance with a first wireless protocol, at least one signal including a data packet, wherein a payload of the data packet comprises an indication of a symbol defined in accordance with a second wireless protocol.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: March 5, 2024
    Assignee: Regents of the University of Minnesota
    Inventors: Tian He, Wenchao Jiang, Ruofeng Liu
  • Patent number: 11909498
    Abstract: A network environment includes a wireless base station, a repeater wireless station, and one or more mobile communication devices (a.k.a., user equipment). A communication management resource associated with the wireless base station receives a communication from a repeater wireless station. In response to the communication, the communication management resource establishes a wireless communication link between the wireless base station and the repeater wireless station. For example, the communication management resource associated with the wireless base station communicates beamforming control information from the wireless base station to the repeater wireless station. The beamforming control information controls beamforming functions of the repeater wireless station and corresponding wireless connectivity with a first mobile communication device.
    Type: Grant
    Filed: June 29, 2022
    Date of Patent: February 20, 2024
    Assignee: Charter Communications Operating, LLC
    Inventors: Muhammad Usman Fazili, Aditi Singh
  • Patent number: 11888655
    Abstract: A decoder for decoding a signal received through a transmission channel represented by a channel matrix using a search sphere radius. The decoder comprises a radius determination device for determining a search sphere radius from a preliminary radius. The radius determination device is configured to: i. apply a machine learning algorithm to input data derived from the received signal, the channel matrix and a current radius, the current radius being initially set to the preliminary radius, which provides a current predicted number of lattice points associated with the current radius; ii. compare the current predicted number of lattice points to a given threshold; iii.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: January 30, 2024
    Assignee: INSTITUT MINES TELECOM
    Inventors: Ghaya Rekaya, Aymen Askri
  • Patent number: 11879936
    Abstract: Methods and systems for on-die measuring jitter of a clock under test are presented. In an aspect, an apparatus comprises a delay line having a plurality of delay elements, the outputs of which are sampled at the expected transition time of the clock under test. The sampled outputs are provided to an edge detector that indicates the presence of the clock transition at a specific time, and a latching circuit stores a record of all the edge locations seen during a sampling window. In some aspects, a counting circuit counts and stores how many times the transition occurs at each specific time during the sampling window. The counts stored by the counting circuit provide histogram data that can be analyzed to determine the jitter characteristics of the clock under test.
    Type: Grant
    Filed: July 1, 2022
    Date of Patent: January 23, 2024
    Assignee: Ampere Computing LLC
    Inventors: Yeshwant Kolla, Ashish Akhilesh
  • Patent number: 11876552
    Abstract: There is provided mechanisms for mitigating passive intermodulation in a first network node, wherein said PIM is caused by radio signals transmitted from at least an adjacent network node. The method is performed by a control device. The method comprises receiving at least an uplink radio signal and down-converting the received UL radio signal to a UL baseband signal. The method applies a cyclic redundancy check, CRC, to detected information bits of the received UL baseband signal, wherein in response to determining by the CRC that the UL baseband signal is detected correctly, directly output the detected information bits. The method comprises in response to determining by the CRC that the UL baseband signal is incorrectly detected, determining a residual signal of the received UL baseband signal applying a blind signal identification scheme on the residual signal of the UL baseband signal to obtain an estimate for a modeled PIM signal.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: January 16, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Fanggang Wang, Haiying Cao, Yu Liu, Peng Liu, Vijay Venkateswaran, Bo Ai
  • Patent number: 11870406
    Abstract: An automatic gain control circuit includes a control circuit for controlling a power detector, wherein the control circuit detects a power level change of an input signal and generates a control signal to the power detector so that the power detector can respond to the power level change of the input signal quickly.
    Type: Grant
    Filed: March 14, 2022
    Date of Patent: January 9, 2024
    Assignee: Rafael Microelectronics, Inc.
    Inventor: Kuan-Ming Chen
  • Patent number: 11870515
    Abstract: Methods, media, and systems are provided for a priority-based multi-user (MU) multiple-input multiple-output (MIMO) pairing threshold for codebook beamforming. The methods, media, and systems identify a plurality of user device candidates for a user device pairing. A first user device of the plurality of user device candidates having a higher priority than another user device of the plurality of user device candidates is identified. Correlations between one or more beams associated with one or more of the plurality of user device candidates are determined. Based on determining the correlations, user devices can be paired for resource sharing. In some embodiments, the user devices are paired based on beam correlations being below a threshold. For example, the threshold can be determined based on a priority of one or more of the user devices.
    Type: Grant
    Filed: November 22, 2022
    Date of Patent: January 9, 2024
    Assignee: T-Mobile Innovations LLC
    Inventor: Sanghoon Sung
  • Patent number: 11863263
    Abstract: Disclosed is a precoding method for generating, from a plurality of baseband signals, a plurality of precoded signals that are transmitted in the same frequency bandwidth at the same time. According to the precoding method, one matrix is selected from among matrices defining a precoding process that is performed on the plurality of baseband signals by hopping between the matrices. A first baseband signal and a second baseband signal relating to a first coded block and a second coded block generated by using a predetermined error correction block coding scheme satisfy a given condition.
    Type: Grant
    Filed: December 13, 2022
    Date of Patent: January 2, 2024
    Assignee: Sun Patent Trust
    Inventors: Yutaka Murakami, Tomohiro Kimura, Mikihiro Ouchi
  • Patent number: 11863279
    Abstract: Systems and methods herein provide for Multi-Input/Multi-Output (MIMO) processing. In one embodiment, a MIMO system comprises a receiver operable to receive a plurality of spatially multiplexed data streams. The system also comprises a processor operable to embed a maximum likelihood (ML) detection algorithm onto a quantum annealer, and to decode the spatially multiplexed data streams via the embedded ML to detect data bits of a plurality of users.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: January 2, 2024
    Assignees: TRUSTEES OF PRINCETON UNIVERSITY, UNIVERSITIES SPACE RESEARCH ASSOCIATION
    Inventors: Kyle Jamieson, Minsung Kim, Davide Venturelli
  • Patent number: 11846713
    Abstract: A Global Navigation Satellite System (GNSS) positioning techniques is provided. A method to improve the time required to compute a position measurement in a GNSS receiver, and the time required to make this position measurement accurate is also provided. The method comprises computing a snapshot PVT (Position Velocity and Time) measurement, and use it to reduce the time required to acquire new signals to compute a conventional PVT measurement. A receiver implementing the method is further provided.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: December 19, 2023
    Assignee: CENTRE NATIONAL D'ETUDES SPATIALES
    Inventor: Fran├žois-Xavier Marmet
  • Patent number: 11846671
    Abstract: A method for recovering data included in a digitally modulated signal is described. The digitally modulated signal includes a symbol sequence. The method includes providing a mathematical model of the digitally modulated signal, the mathematical model describing the digitally modulated signal in terms of the symbol sequence and describing the digitally modulated signal in terms of a step response and/or an impulse response, and wherein the mathematical model also takes disturbances into account; and processing the digitally modulated signal based on the mathematical model, thereby recovering the data included in the digitally modulated signal. The disturbances include a random disturbance component modelled as a Gaussian disturbance, and include an inter-symbol interference component modelled as Gaussian noise, and wherein a dependence of the at least one step response on the symbol sequence is neglected within the mathematical model. Further, a measurement instrument and a measurement system are described.
    Type: Grant
    Filed: April 27, 2022
    Date of Patent: December 19, 2023
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventor: Adrian Ispas
  • Patent number: 11831369
    Abstract: Systems and methods provided for transmitting a set of signals to one or more user devices based on a coded split beam system include one or more user devices, an antenna, and a cell site. The cell site includes a beam control system communicatively coupled to the antenna and the one or more user devices. The beam control system is to determine a threshold number of user devices in a sector, determine a location corresponding to the user devices, determine a first set of the user devices are disposed in a first set of subsectors and a secondary set of the user devices are disposed in a secondary set of subsectors, and transmit a first set of signals to the first set of the user devices based on a first code and a secondary set of signals to the secondary set of the user devices based on a secondary code.
    Type: Grant
    Filed: April 26, 2022
    Date of Patent: November 28, 2023
    Assignee: T-Mobile Innovations LLC
    Inventor: Nagi Mansour
  • Patent number: 11831349
    Abstract: A serial signal detector and a differential signal detection method are provided. The serial signal detector includes a voltage comparison module and a hybrid logic filter. The voltage comparison module receives a differential signal, including a first shifted signal and a second shifted signal. The voltage comparison module includes a first comparator and a second comparator. Based on the first shifted signal, the second shifted signal, and a voltage threshold, the first and the second comparators respectively generate a first and a second comparison signals. The hybrid logic filter includes a controllable logic gate and a capacitor. The controllable logic gate performs a logic operation related to the first and the second comparison signals and generates a filtered and converted pulse accordingly. The controllable logic gate and the capacitor jointly perform a preliminary filtering operation to the filtered and converted pulse while the logic operation is being performed.
    Type: Grant
    Filed: January 14, 2022
    Date of Patent: November 28, 2023
    Assignee: FARADAY TECHNOLOGY CORPORATION
    Inventor: Vinod Kumar Jain
  • Patent number: 11824603
    Abstract: An apparatus for wireless communication at a UE is provided. The apparatus is configured to receive one or more pilot signals superimposed on a data signal from a network entity. The apparatus is further configured to receive an indication of a first set of locations in at least one of time or frequency from the network entity. The data signal or the scrambled data signal is near orthogonal to a channel estimation filter of the transmission channel between the network entity and the UE at the first set of locations. The apparatus is further configured to transmit characteristics of the transmission channel to the network entity. The characteristics of the transmission channel is determined based at least in part on the first set of locations.
    Type: Grant
    Filed: September 26, 2022
    Date of Patent: November 21, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Ram Krips, Gideon Shlomo Kutz, Amit Bar-Or Tillinger, Elad Meir, David Yunusov, Assaf Touboul