Patents Examined by Jean B. Corrielus
  • Patent number: 10849140
    Abstract: User equipment and base stations can enable access to secondary radio access technology (S-RAT), a cross radio access technology (RAT) scheduling between a primary RAT (P-RAT) and a secondary RAT (S-RAT) and/or cross-scheduling in a same RAT with different optimizations and use/partition for different applications (e.g., a regular partition with a carrier resource (referred to as P-RAT) and an additional resource partition/region for device-to-device (D2D) or machine-type-communication (MTC) application (referred to as S-RAT)). Cross-RAT/partition-scheduling can include when S-RAT is scheduled by P-RAT or when P-RAT is scheduled by S-RAT.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: November 24, 2020
    Assignee: APPLE INC.
    Inventors: Gang Xiong, Jong-Kae Fwu, Hong He
  • Patent number: 10848222
    Abstract: Techniques for identifying events for updating beam configurations for wireless communications employing beamforming are described. The events may be based on a response message to an aperiodic reference signal (RS). For example, a device that receives an aperiodic RS may transmit a message to the device that transmitted the aperiodic RS to confirm that the aperiodic RS was received. Additionally or alternatively, a device that receives an aperiodic RS may set a timer after receiving the aperiodic RS (or transmission of the confirmation message), and may update its beam configuration upon expiration of the timer. If control information is received to schedule a second aperiodic RS prior to expiration of a timer for a first periodic RS, a device may update the timer. Updating the timer for aperiodic RS may be individual to different aperiodic RS transmissions, or may be common among aperiodic RS.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: November 24, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Yan Zhou, Tao Luo, Ruhua He
  • Patent number: 10841013
    Abstract: A receiver (e.g., for a 10G fiber communications link) includes an interleaved ADC coupled to a multi-channel equalizer that can provide different equalization for different ADC channels within the interleaved ADC. That is, the multi-channel equalizer can compensate for channel-dependent impairments. In one approach, the multi-channel equalizer is a feedforward equalizer (FFE) coupled to a Viterbi decorder, for example, a sliding block Viterbi decoder (SBVD); and the FFE and/or the channel estimator for the Viterbi decoder are adapted using the LMS algorithm.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: November 17, 2020
    Assignee: INPHI CORPORATION
    Inventors: Oscar Ernesto Agazzi, Diego Ernesto Crivelli, Hugo Santiago Carrer, Mario Rafael Hueda, German Cesar Augusto Luna, Carl Grace
  • Patent number: 10840954
    Abstract: An outphasing calibration method in an outphasing calibration RF transmitter comprises detection of differences of a first plurality of signal characteristics of a first plurality of amplified RF signals across at least a transmitter antenna and a plurality of load impedances. The first plurality of amplified RF signals corresponds to a first plurality of constant-envelope signals. Accordingly, at least a generation of a second plurality of constant-envelope signals and at least one signal characteristic of each of a second plurality of constant-envelope RF signals on a plurality of transmission paths are controlled. At least one of a first calibration or a second calibration of a second plurality of signal characteristics of the second plurality of constant-envelope signals is executed based on the controlled generation of the second plurality of constant-envelope signals and the at least one controlled signal characteristic of each of the second plurality of constant-envelope RF signals.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: November 17, 2020
    Assignee: MOVANDI CORPORATION
    Inventors: Farid Shirinfar, Ahmadreza Rofougaran, Sam Gharavi, Kartik Sridharan, Michael Boers, Seunghwan Yoon, Donghyup Shin, Stephen Wu, Maryam Rofougaran
  • Patent number: 10841139
    Abstract: Methods and systems for estimating a symbol timing error for an offset quadrature phase shift keying (O-QPSK) modulated signal. The method includes: receiving a plurality of complex samples representing an O-QPSK modulated signal, wherein if the O-QPSK modulated signal is sampled on time each of the plurality of samples has substantially no imaginary component; generating an early error metric and a late error metric for each sample, the early error metric based on the imaginary component for the sample and a sign of a real component of a previous sample and the late error metric based on the imaginary component for the sample and a sign of a real component of a next sample; generating a combined early error metric based on the early error metrics for the plurality of samples; generating a combined late metric based on the late error metrics for the plurality of samples; and generating an estimate of the symbol timing error based on the combined early error metric and the combined late metric.
    Type: Grant
    Filed: June 29, 2019
    Date of Patent: November 17, 2020
    Assignee: Imagination Technologies Limited
    Inventor: Matthew Gilbert
  • Patent number: 10833739
    Abstract: Reference signal and transmitter (Tx)/receiver (Rx) precoding for user equipment (UE) multiplexing in new radio (NR) shared spectrum networks is discussed. In certain reference signals, a base station may schedule multiple UEs for transmission of uplink reference signals within an identified subframe. The base station may transmit a reference signal configuration message, wherein the reference signal configuration message includes a transmission sequence identifier identifying a multiplexing for antenna ports assigned for transmission of the uplink reference signals. The multiplexing may be one or both of frequency divisional multiplexing (FDM) and time division multiplexing (TDM) over the identified subframe. Additional reference signals, transmit precoders may be identified by the base station based on channel inversion calculations of the channel matrix determined based on uplink reference signals.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: November 10, 2020
    Assignee: QUALCOMM INCORPORATED
    Inventors: Seyed Ali Akbar Fakoorian, Xiaoxia Zhang, Taesang Yoo, Siddhartha Mallik, Juan Montojo
  • Patent number: 10826570
    Abstract: Apparatus and methods for multi-antenna communications are provided. In certain embodiments, a communication system includes an antenna array including a plurality of antenna elements, and a plurality of RF circuit channels each coupled to a corresponding one of the antenna elements. The plurality of RF circuit channels generate two or more analog baseband signals in response to the antenna array receiving a radio wave. The communication system further includes a controllable amplification and combining circuit that generates two or more amplified analog baseband signals based on amplifying each of the two or more analog baseband signals with a separately controllable gain, and that combines the two or more amplified analog baseband signals to generate a combined analog baseband signal.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: November 3, 2020
    Assignee: Skyworks Solutions, Inc.
    Inventors: Florinel G. Balteanu, Paul T. DiCarlo
  • Patent number: 10812159
    Abstract: Embodiments of this application provide an antenna calibration method and apparatus. In the method, for a first antenna unit and a second antenna unit, candidate phase compensation coefficients used for antenna calibration are determined based on channel responses indicating that a first calibration signal sent by the first antenna unit is received by the first antenna unit and the second antenna unit and channel responses indicating that a second calibration signal sent by the second antenna unit is received by the first antenna unit and the second antenna unit; and a phase compensation coefficient is selected from the candidate phase compensation coefficients based on measurement on an uplink signal sent by user equipment.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: October 20, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Jiesheng Huang, Xiangyang Liu, Jian Min, Guichun Zhuang, Xitao Dai, Guochen Liu
  • Patent number: 10812301
    Abstract: A dynamic tap weight generator circuit includes a clock generator circuit having a first output and a second output. There is a current interpolator circuit coupled to a first current source and a second current source and to the first and second outputs of the clock generator circuit and operative to provide a first output and a second output providing a differential output current between a current of the first current source and a current of the second current source across a symbol transmission interval. A 2:1 current multiplexer is coupled to a first and second outputs of the current interpolator circuit. A tap weight driver is coupled to an output of the 2:1 current multiplexer and configured is to dynamically adjust a tap weight of an equalizer dynamically during each clock cycle of the clock generator.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: October 20, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventor: Troy Beukema
  • Patent number: 10812232
    Abstract: Embodiments of this application disclose a method for scheduling a terminal. The method includes the following operations: receiving a precoding matrix indication PMI value and reference signal received power RSRP that are sent by user equipment; determining, based on the PMI value, grouping of a network area corresponding to the user equipment; and determining, based on the RSRP, a network area in which the user equipment is located. This application has the advantage of avoiding interference between network areas.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: October 20, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Libiao Wang, Fan Jin, Wei Chen
  • Patent number: 10812130
    Abstract: Examples of backscatter systems, device, and techniques are described herein. Example backscatter devices may utilize CSS modulation to provide backscatter signals including CSS signals (e.g., LoRa packets). Utilizing CSS modulation may advantageously allow for backscatter communication over wide areas. Examples of backscatter devices described herein may toggle the impedance of the backscatter device between multiple (e.g., eight) impedances to reduce and/or eliminate higher order harmonic components in the backscatter signal (e.g., third and fifth harmonic components).
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: October 20, 2020
    Assignee: University of Washington
    Inventors: Vamsi Talla, Mehrdad Hessar, Joshua R. Smith, Shyamnath Gollakota, Ali Najafi, Bryce Kellogg
  • Patent number: 10804997
    Abstract: An apparatus is provided for generating a transmission wave. The apparatus includes a plurality of antennas and a plurality of signal generators. The plurality of antennas has polarization diversity. The plurality of signal generators are each coupled to one of the antennas and configured to generate a continuous twisted wave by driving each of the antennas using independent, coordinated, and distinct sinusoidal waves, and having a twist frequency and a carrier frequency, the twist frequency lower than the carrier frequency. A method is also provided.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: October 13, 2020
    Assignee: Ctwists, LLC
    Inventor: Carl Edmund Porter
  • Patent number: 10804994
    Abstract: Disclosed in the present application are an antenna beam management method and related device, used for solving the problem in current large-scale antenna technology wherein the overhead of beam management control signaling is large. The method is: a terminal sending related information of a downlink beam of the terminal to a base station so that the base station determines a first downlink sending beam on the basis of the related information of the downlink beam; the terminal receiving notification information related to the first downlink sending beam send by the base station, the notification information comprising indication information that is used by the terminal to determine at least one first downlink receiving beam; the terminal determining the at least one first downlink receiving beam on the basis of the notification information; and the terminal receiving a downlink signal on the basis of the at least one first downlink receiving beam.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: October 13, 2020
    Assignee: China Academy of Telecommunications Technology
    Inventors: Qiubin Gao, Runhua Chen, Tamrakar Rakesh, Xin Su, Chuanjun Li
  • Patent number: 10805040
    Abstract: A discrete multitone transceiver (DMT) includes a deinterleaver operable to de-interleave a plurality of bits. The DMT further includes: a forward error correction decoder operable to decode the plurality of bits, a module operable to determine, during Showtime, an impulse noise protection value, wherein the impulse protection value specifies a number corrupted DMT symbols that can be corrected by the forward error correction decoder in combination with the deinterleaver, and a receiver coupled to the deinterleaver. The receiver receives using a first interleaver parameter value, receives a flag signal, and changes to receiving using a second interleaver parameter value that is different than the first interleaver parameter value, wherein the second interleaver parameter value is used for reception on a pre-defined forward error correction codeword boundary following reception of the flag signal.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: October 13, 2020
    Assignee: TQ DELTA, LLC
    Inventor: Marcos C. Tzannes
  • Patent number: 10797745
    Abstract: An operation method of an in-band full duplex (IFD) transceiving apparatus including a receiving end, a transmitting end, a digital self-interference cancellation (DSIC) processing unit, and a digital SI cancellation unit may comprise generating, by the DSIC processing unit, signal shaping coefficients for wave shaping of a signal of the transmitting end; generating, by the DSIC processing unit, channel estimation coefficients for cancellation of a self-interference signal in a reception signal of the receiving end; forming, by the DSIC processing unit, a transmission signal based on the signal shaping coefficients; and generating, by the DSIC processing unit, a control signal for cancellation of the self-interference signal in the reception signal based on the channel estimation coefficients.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: October 6, 2020
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Seon Ae Kim, Dong Hyuk Gwak, Tae Joong Kim, Jung Bo Son, Yu Ro Lee, Hyun Lee, Hyung Sik Ju
  • Patent number: 10790873
    Abstract: The present application relates to a transceiver, TX/RX PHY, and a method of operating the TX/RX PHY arranged for bi-directional data communication of a node with a counterpart node connected to in a point-to-point network using differential mode signaling over a single twisted-pair cable. A TX adjustment component is arranged in a TX path of the TX/RX PHY and configured to adjust a TX data communication signal generated by the TX/RX PHY for transmittal to the counterpart node. The TX adjustment component is further configured to accept information about a common mode signal detected on the single twisted-pair cable and to adjust the TX data communication signal to at least weaken the common mode signal occurring at the counterpart node in response to transmitting the TX data communication signal.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: September 29, 2020
    Assignee: NXP B.V.
    Inventors: Sujan Pandey, Johannes Petrus Antonius Frambach
  • Patent number: 10784568
    Abstract: An antenna system is disclosed. In embodiments, the antenna system may include a communication sub-system disposed within an aircraft. The communication sub-system may include one or more power supply components configured to generate a direct current (DC) power supply, and a first capacitive coupling device configured to capacitively couple an alternating current (AC) transmit signal to the DC power supply to form an antenna input signal. In embodiments, the antenna system may further include an electrical line configured to transmit the antenna input signal from the communication sub-system to an antenna module. In embodiments, the antenna module may include a second capacitive coupling device configured to de-couple the DC power supply and the AC transmit signal, communication circuitry configured to generate one or more transmission signals based on the AC transmit signal.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: September 22, 2020
    Assignee: Rockwell Collins, Inc.
    Inventors: Theodore J. Hoffmann, Jonathan A. Lovseth
  • Patent number: 10784919
    Abstract: Examples provide an adaptation circuit and apparatus, method and computer programs for adapting, fabricating and operating, a radio transceiver, a mobile transceiver, a base station transceiver and storage for computer programs or instructions. The adaptation circuit (10) is configured to adapt a local oscillator signal in a radio transceiver (30). The radio transceiver (30) comprises a transmission branch (14) and a reception branch (16), which are subject to cross-talk. The reception branch (16) comprises a local oscillator (18) configured to generate the local oscillator signal. The adaptation circuit (10) comprises a control module (12) configured to determine crosstalk level information between the transmission branch (14) and the reception branch (16), and to adapt the local oscillator signal based on the crosstalk level information.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: September 22, 2020
    Assignee: Intel IP Corporation
    Inventors: Dirk Friedrich, Peter Laaser, Josef Holzleitner
  • Patent number: 10763926
    Abstract: Various communication systems may benefit from improved sounding reference symbol sounding techniques. An apparatus may comprise at least one memory comprising computer program code and at least one processor. The at least one memory and the computer program code are configured, with the at least one processor, to cause the apparatus at least to precode at least one uplink sounding reference symbol based upon at least one initial rank indicator and at least one first vector/matrix received from a network entity. The apparatus further transforms the first vector/matrix and a second vector matrix received from the network entity into a third vector/matrix based upon a final rank indicator received from the network entity. The apparatus further transmits data based upon the third vector/matrix.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: September 1, 2020
    Assignee: NOKIA TECHNOLOGIES OY
    Inventors: Jun Tan, Eugene Visotsky, Fred Vook, Bill Hillery
  • Patent number: 10756769
    Abstract: This embodiment relates to a transmitter that has a structure to suppress an increase in device occupancy area on a semiconductor substrate. The transmitter includes an output driver, a duplication driver, a reference voltage generation unit, a first selection unit, a second selection unit, a comparison unit, and a control unit. The first selection unit selects a first or second test voltage outputted from a duplication driver in which a resistance value is set in cooperation with the output driver. The second selection unit selects a first or second reference voltage outputted from the reference voltage generation unit. The comparison unit compares magnitudes of the first test voltage and the first reference voltage during a first operation period and compares magnitudes of the second test voltage and the second reference voltage during a second operation period different from the first operation period.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: August 25, 2020
    Assignee: THINE ELECTRONICS, INC.
    Inventors: Yusuke Fujita, Satoshi Miura