Generalized Orthogonal Or Special Mathematical Techniques Patents (Class 370/203)
  • Patent number: 11411685
    Abstract: A terminal is disclosed including a processor that, when an uplink shared channel is used to transmit a delivery acknowledgement signal (HARQ-ACK) and an uplink data (UL-SCH), controls a mapping of the delivery acknowledgement signal based on whether bundling is applied to the delivery acknowledgement signal and based on a number of bits of the delivery acknowledgement signal; and a transmitter that transmits the delivery acknowledgement signal and the uplink data. In other aspects, a radio communication method and a base station are also disclosed.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: August 9, 2022
    Assignee: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Satoshi Nagata, Lihui Wang
  • Patent number: 11388699
    Abstract: A method of transmitting packets between a plurality of nodes of a network. The method comprising in each of a plurality of data timeslots, transmitting a data packet with one of the plurality of nodes and listening to receive the data packet with the remainder of the plurality of nodes. The method further comprising in each of one or more parity timeslots following the plurality of data timeslots, transmitting a parity packet with one or more of the plurality of nodes and listening to receive the parity packet with the remainder of the plurality of nodes. Each parity packet is derived from a set of the data packets transmitted during the plurality of data timeslots.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: July 12, 2022
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Usman Raza, Magnus Stig Torsten Sandell
  • Patent number: 11387976
    Abstract: Examples described herein include apparatuses and methods for full duplex device-to-device cooperative communication. Example systems described herein may include self-interference noise calculators. The output of a self-interference noise calculator may be used to compensate for the interference experienced due to signals transmitted by another antenna of the same wireless device or system. In implementing such a self-interference noise calculator, a selected wireless relaying device or wireless destination device may operate in a full-duplex mode, such that relayed messages may be transmitted as well as information from other sources or destinations during a common time period (e.g., symbol, slot, subframe, etc.).
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: July 12, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Fa-Long Luo, Tamara Schmitz, Jeremy Chritz, Jaime Cummins
  • Patent number: 11356220
    Abstract: The present invention relates to the technical field of communications, and specifically relates to an uplink transmission method, terminal, and base station, used for providing a pilot frequency transmission solution for a terminal supporting an CP-OFDM waveform, and comprising: a terminal determines a frequency domain starting position of a pilot frequency, the terminal being a terminal using CP-OFDM to perform uplink transmission; on the basis of a comb-type interval and the determined frequency domain starting position, mapping the pilot frequency onto a transmission pilot frequency symbol; and sending the pilot frequency mapped onto the symbol to a base station.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: June 7, 2022
    Assignee: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.
    Inventors: Xuejuan Gao, Xueming Pan
  • Patent number: 11350395
    Abstract: The present disclosure provides a method for transmitting a physical uplink control channel (PUCCH) in a wireless communication system. Specifically, a UE maps a first sequence of first uplink control information (UCI) and a second sequence of second UCI to at least one OFDM symbol of the PUCCH, and transmits the first UCI and the second UCI to a base station through the PUCCH. In this case, the first sequence is sequentially mapped up to a symbol before a last symbol of the at least one OFDM symbol on a frequency axis and mapped at regular intervals of two or more REs (resource elements) in the last symbol. Also, the second sequence is sequentially mapped on the frequency axis between REs of the last symbol to which the first sequence is mapped.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: May 31, 2022
    Assignee: LG ELECTRONICS INC.
    Inventors: Jaehyung Kim, Suckchel Yang
  • Patent number: 11343123
    Abstract: Some embodiments of the present disclosure provide for use of a linear chirp signal as a basis for a sensing signal. Modification of the linear chirp signal by a signature function can allow a receiver of the sensing signal to determine an identity for a source of the sensing signal. Accordingly, upon processing the received sensing signal to obtain path parameter estimates, the receiver can direct a transmission of an indication of the path parameter estimates to the source of the sensing signal. Aspects of the present application relate to performing multi-node, multi-path channel estimation on the basis of processing the received sensing signal. Conveniently, the processing is performed with low complexity.
    Type: Grant
    Filed: October 27, 2020
    Date of Patent: May 24, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Alireza Bayesteh, Navid Tadayon, Jianglei Ma
  • Patent number: 11329788
    Abstract: Techniques are described for wireless communication. A first method includes generating uplink control information at a wireless device, and transmitting the uplink control information over an interlace of a component carrier of an unlicensed radio frequency spectrum band. The interlace includes a plurality of non-contiguous concurrent resource blocks in the unlicensed radio frequency spectrum band, and at least two resource blocks in the interlace include different portions of the uplink control information. A second method includes generating uplink control information at a wireless device, and transmitting the uplink control information over an uplink control channel of an unlicensed radio frequency spectrum band. Resources of the uplink control channel are divided into a plurality of discrete dimensions and the uplink control information of the wireless device is transmitted over a number of the discrete dimensions allocated to the uplink control information of the wireless device.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: May 10, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Durga Prasad Malladi, Yongbin Wei, Wanshi Chen, Peter Gaal, Tao Luo
  • Patent number: 11316566
    Abstract: Disclosed are a codebook-based signal transmission and reception method in a multi-antenna wireless communication system and an apparatus therefor. Specifically, a method for transmitting or receiving a signal on the basis of a codebook by a terminal in a 2-dimensional multi-antenna wireless communication system comprises the steps of: receiving a channel state information reference signal (CSI-RS) through a multi-antenna port from a base station; and reporting channel state information to the base station, wherein the channel state information may include a precoding matrix indicator (PMI) for indicating a precoding matrix, the PMI may include a first PMI for selecting a set of precoding matrixes from the codebook and a second PMI for selecting one precoding matrix from the set of precoding matrixes.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: April 26, 2022
    Assignee: LG Electronics Inc.
    Inventors: Haewook Park, Kijun Kim, Jonghyun Park
  • Patent number: 11316614
    Abstract: The present disclosure provides a code generator for generating an {N?, K?} code for encoding and/or decoding data transmitted in a communication channel from an {N, K} code, wherein N and N? are code lengths, K and K? are code dimensions. The code generator is configured to shorten the {N, K} code to obtain an intermediate code, and to extend the intermediate code to obtain the {N?, K?} code. The present disclosure also provides a corresponding code construction method. Further, the present disclosure provides a device for encoding and/or decoding data transmitted in a communication channel, the device being configured to encode and/or decode the data based on an {N?, K?} code generated from the {N, K} code.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: April 26, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Huijian Zhang, Zhipeng Zhao, Wai Kong Raymond Leung, Marc Fossorier, Ingmar Land
  • Patent number: 11317361
    Abstract: A method of operating a terminal for controlling transmission power of the terminal in a wireless communication system is provided. The method includes receiving, from a base station, a set of first sequences and an identifier for indicating uplink precoding information, generating a set of second sequences based on the set of first sequences and the uplink precoding information, and transmitting, to the base station, the set of second sequences at antenna ports, wherein each of the antenna ports corresponds to each sequence included in the set of second sequences, and wherein at least one of the set of first sequences and the uplink precoding information is generated based on at least one coefficient.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: April 26, 2022
    Inventors: Hoondong Noh, Jinhyun Park, Youngwoo Kwak
  • Patent number: 11303367
    Abstract: An apparatus configured to be employed in a victim transmission reception point (TRP) associated with a new radio (NR) communication system is disclosed. The apparatus comprises a memory interface and a processing circuit. In some embodiments, the processing circuit is configured to process one or more predefined interference signals respectively received from one or more interfering TRPs during a guard period of the victim TRP. In some embodiments, the guard period comprises a time period between a downlink (DL) transmission and an uplink (UL) transmission associated with a time division duplex (TDD) frame of the victim TRP. In some embodiments, the processing circuit is further configured to determine an inter-TRP interference based on the one or more predefined interference signals. In some embodiments, the inter-TRP interference comprises a measurement of a UL interference at the victim TRP from the one or more interfering TRPs.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: April 12, 2022
    Assignee: Apple Inc.
    Inventors: Guotong Wang, Yushu Zhang, Qian Li, Alexei Davydov, Seok Chul Kwon
  • Patent number: 11296757
    Abstract: A transmission method simultaneously transmitting a first modulated signal and a second modulated signal at a common frequency performs precoding on both signals using a fixed precoding matrix and regularly changes the phase of at least one of the signals, thereby improving received data signal quality for a reception device.
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: April 5, 2022
    Assignee: SUN PATENT TRUST
    Inventors: Yutaka Murakami, Tomohiro Kimura, Mikihiro Ouchi
  • Patent number: 11296758
    Abstract: Disclosed are a codebook-based signal transmission and reception method in a multi-antenna wireless communication system and an apparatus therefor. Specifically, a method for transmitting or receiving a signal on the basis of a codebook by a terminal in a 2-dimensional multi-antenna wireless communication system comprises the steps of: receiving a channel state information reference signal (CSI-RS) through a multi-antenna port from a base station; and reporting channel state information to the base station, wherein the channel state information may include a precoding matrix indicator (PMI) for indicating a precoding matrix, the PMI may include a first PMI for selecting a set of precoding matrixes from the codebook and a second PMI for selecting one precoding matrix from the set of precoding matrixes.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: April 5, 2022
    Assignee: LG Electronics Inc.
    Inventors: Haewook Park, Kijun Kim, Jonghyun Park
  • Patent number: 11262905
    Abstract: A device with a display and a touch-sensitive surface: displays a geographic map in a first mode of an application, the geographic map including a plurality of landmarks, the geographic map being displayed at a first magnification level; detects a first input, the first input including a first finger contact at a location on the touch-sensitive surface that corresponds to a first landmark on the display; in response to detecting the first input: when the first input does not satisfy one or more predefined mode-change conditions, changes the magnification level in accordance with the first input and remains in the first mode; and when the first input satisfies the mode-change conditions, selects the first landmark and enters a second mode of the application; while in the second mode, detects a second input; and, in response to detecting the second input, displays information about the first landmark.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: March 1, 2022
    Assignee: Apple Inc.
    Inventors: Billy Chen, Patrick Steven Piemonte
  • Patent number: 11265892
    Abstract: This application discloses a data transmission method and device to improve transmission efficiency of terminal data. The method of the embodiments of this application includes: receiving, by a second base station, a first message from a first base station, where the first message is used to request the second base station to allocate a radio resource for a specific bearer, and the first message includes resource scheduling information; determining, by the second base station, based on the resource scheduling information, a resource location of the radio resource and scheduling the radio resource; and sending, by the second base station, a first response message in response to the first message to the first base station.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: March 1, 2022
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Xiaoli Shi, Yada Huang, Yaqi Zhao, Guohua Zhou
  • Patent number: 11251856
    Abstract: A control apparatus includes a determination unit configured to determine first and second reception weight matrixes by using first and second channel matrixes between first and second radio apparatuses and the first and second terminals, a first calculation unit configured to calculate a data channel matrix of a data signal transmitted from the first radio apparatus to the first terminal by using the first channel matrix and the first reception weight matrix, a second calculation unit configured to calculate an interference channel matrix of interference to the second terminal caused by the first radio apparatus by using a third channel matrix between the first radio apparatus and the second terminal and the second reception weight matrix, and a third calculation unit configured to calculate a transmission weight matrix for transmitting a data signal so that the interference is suppressed by using the data channel matrix and the interference channel matrix.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: February 15, 2022
    Assignee: NEC CORPORATION
    Inventors: Jun Shikida, Naoto Ishii
  • Patent number: 11252729
    Abstract: In a wireless communication base station device, a modulation unit carries out modulation processing for Dch data after coding to generate a Dch data symbol. A modulation unit carries out modulation processing for Lch data after coding to generate an Lch data symbol. An allocation unit allocates the Dch data symbol and Lch data symbol to each sub-carrier composing an OFDM symbol and outputs the allocated sub-carrier to a multiplex unit. In this case, the allocation unit allocates the Dch data symbol to a plurality of resource blocks where one Dch is arranged at an interval equal to integral multiples of the number of resource blocks composing a resource block group.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: February 15, 2022
    Assignee: Panasonic Corporation
    Inventors: Akihiko Nishio, Christian Wengerter, Hidetoshi Suzuki, Katsuhiko Hiramatsu
  • Patent number: 11237930
    Abstract: Disclosed are hardware and techniques for testing computer processes in a network system by simulating computer process faults and identifying risk associated with correcting the simulated fault and identifying computer processes that may depend on the corrected computer process. The interdependent computer processes in a network may be determined by evaluating a risk matrix having a risk score and non-functional requirement score. An analysis of the risk score and non-functional requirement score accounts for interdependencies between computer processes and identified corrective actions that may be used to determine an optimal network environment. The optimal network environment may be updated dynamically based on changing computer process interdependencies and the determined risk and robustness scores.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: February 1, 2022
    Assignee: Capital One Services, LLC
    Inventors: Bhavik Gudka, Eric Barnum
  • Patent number: 11223506
    Abstract: A method for a user equipment (UE) to transmit a channel state information (CSI) report. The method comprises receiving configuration information for a location of a CSI report trigger field in a downlink control information (DCI) format that includes multiple CSI report trigger fields and receiving the DCI format. The method further comprises determining whether or not a value for the CSI report trigger field indicates a transmission of a CSI report and transmitting a physical uplink control channel (PUCCH) that includes the CSI report when the value indicates a transmission of the CSI report.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: January 11, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Aris Papasakellariou
  • Patent number: 11218195
    Abstract: A disclosed transmitter for wireless communication includes multiple transmitting antennas, a symbol mapper for mapping an input block including multiple binary bits and representing information to be transmitted to a symbol representing an ordered plurality of complex numbers, a space-time encoder for applying an encoding operator to the symbol to produce a vectorized space-time codeword defining electrical signals to be transmitted by the transmitter, the encoding operator being dependent on a set of predefined stabilizer generators, and circuitry to collectively transmit, by the antennas to multiple receiving antennas of a receiver over a wireless transmission channel, the electrical signals defined by the vectorized space-time codeword. The receiver includes a space-time decoder for recovering the symbol from the electrical signals transmitted by the transmitter using a decoding operation that is based on maximum likelihood inference, and a symbol de-mapper for recovering the input block from the symbol.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: January 4, 2022
    Assignee: Board of Regents, The University of Texas System
    Inventors: S. Andrew Lanham, Travis Cuvelier, Brian R. La Cour, Robert Heath
  • Patent number: 11212155
    Abstract: A method, an apparatus and a computer program product for enhancing reception of signals in a wireless communication system. A signal containing a frame including a plurality of symbols is received on an uplink communication channel. An angular position of at least one symbol in the plurality of symbols in a constellation of symbols is detected. The plurality of symbols include equalized symbols. An angular difference corresponding a phase error between the detected angular position of the symbol and an expected reference angular position in the constellation of symbols corresponding to an expected reference symbol corresponding to the received frame is determined. Using the determined phase error, a phase of the symbol is compensated.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: December 28, 2021
    Assignee: AltioStar Networks, Inc.
    Inventors: Sriram Rajagopal, Vinoth Nagarajan, Venkatesh Hampasandra Muralidhara
  • Patent number: 11212026
    Abstract: A signal generator 10 generates an OOK (on-off keying) modulation signal by mapping a CAZAC (constant amplitude zero auto-correlation) sequence to N subcarriers (N being an integer that is greater than or equal to 2) arranged at a determined interval among M subcarriers (M being an integer that is greater than or equal to 3) that are adjacent in the frequency domain, carrying out inverse fast Fourier transform (IFFT) processing on the mapped CAZAC sequence, and carrying out Manchester coding on a time domain signal generated by the IFFT processing. A radio transmitter 107 transmits the OOK modulation signal.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: December 28, 2021
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Takashi Iwai, Yoshio Urabe, Takayuki Nakano, Tomohumi Takata
  • Patent number: 11206070
    Abstract: A method performed by a wireless device (510, 700, 1100) is disclosed. The wireless device obtains (601) a configuration for a sub-band channel quality indicator (CQI) granularity and a sub-band precoding matrix indicator (PMI) granularity for the wireless device. The wireless device determines (602) channel state information (CSI) feedback according to the configured sub-band CQI granularity and the sub-band PMI granularity. The sub-band PMI granularity corresponds to a first sub-band size and the sub-band CQI granularity corresponds to a second sub-band size. The first sub-band size is smaller than the second sub-band size. The wireless device transmits (603), to a network node (560, 1000), the determined CSI feedback.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: December 21, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Niklas Wernersson, Sebastian Faxér, Maksym Girnyk
  • Patent number: 11206064
    Abstract: This application provides a transmission precoding matrix indication method and a device. The method includes: determining a bit quantity of a transmission precoding matrix indicator field corresponding to a subband scheduled for uplink based on downlink control information received from a network device, where the bit quantity of the transmission precoding matrix indicator field corresponding to the subband is related to a quantity of subbands corresponding to the resource scheduled for uplink; and further, determining an uplink transmission precoding matrix corresponding to the subband based on the bit quantity of the transmission precoding matrix indicator field corresponding to the subband and the uplink transmission layer quantity. A transmission precoding matrix indicator field can be effectively used, and control channel resource utilization is improved.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: December 21, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Haibao Ren, Yi Huang, Yuanjie Li
  • Patent number: 11201648
    Abstract: Systems and methods for closed loop MIMO (multiple input and multiple output) wireless communication are provided. Various transmit formats including spatial multiplexing and STTD are defined in which vector or matrix weighting is employed using information fed back from receivers. The feedback information may include channel matrix or SVD-based feedback.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: December 14, 2021
    Assignee: Apple Inc.
    Inventors: Wen Tong, Ming Jia, Jianglei Ma, Peiying Zhu, Hua Xu, Dong-Sheng Yu, Hang Zhang, Mo-Han Fong
  • Patent number: 11201647
    Abstract: A method and apparatus provide equal energy codebooks for coupled antennas with transmission lines. A plurality of precoders can be received from a codebook in a transmitter having an antenna array. Each precoder of the plurality of precoders can be transformed to a transformed precoder such that the transmit power for each transformed precoder is equal to the transmit power for each of other transformed precoders of the plurality of precoders. The transmit power can be expressed as a quadratic form with respect to the corresponding precoder. The quadratic form can be based on a transmission line impedance of a transmission line between a signal source and the antenna array. A signal can be received from the signal source. A transformed precoder of the plurality of transformed precoders can be applied to the signal to generate a precoded signal for transmission over a physical channel. The precoded signal can be transmitted.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: December 14, 2021
    Assignee: Motorola Mobility LLC
    Inventors: Colin Frank, Tyler Brown
  • Patent number: 11201770
    Abstract: Provided are a preamble symbol generation method and receiving method, and a relevant frequency-domain symbol generation method and a relevant device, characterized in that the method comprises: generating a cyclic prefix according to a partial time-domain main body signal truncated from a time-domain main body signal; generating a modulation signal based on a portion or the entirety of the partial time-domain main body signal; and generating time-domain symbols based on at least one of the cyclic prefix, the time-domain main body signal and the modulation signal, wherein the preamble symbol contains at least one of the time-domain symbols.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: December 14, 2021
    Assignee: Shanghai National Engineering Research Center of Digital Television Co., Ltd.
    Inventors: Wenjun Zhang, Guanbin Xing, Ge Huang, Hongliang Xu, Dazhi He, Yunfeng Guan
  • Patent number: 11190379
    Abstract: One example wireless communication method includes transforming an information signal to a discrete sequence, where the discrete sequence is a Zak transformed version of the information signal, generating a first ambiguity function corresponding to the discrete sequence, generating a second ambiguity function by pulse shaping the first ambiguity function, generating a waveform corresponding to the second ambiguity function, and transmitting the waveform over a wireless communication channel. Another communication method includes transforming an information signal to a discrete lattice domain signal, shaping bandwidth and duration of the discrete lattice domain signal by a two-dimensional filtering procedure to generate a filtered information signal, generating, using a Zak transform, a time domain signal from the filtered information signal, and transmitting the time domain signal over a wireless communication channel.
    Type: Grant
    Filed: December 24, 2019
    Date of Patent: November 30, 2021
    Assignee: Cohere Technologies, Inc.
    Inventor: Ronny Hadani
  • Patent number: 11177921
    Abstract: A mobile terminal camps in a first cell associated with a first reference signal with a first physical structure that relates to a first Time Division Duplex (TDD) allocation of sub-frames for uplink and downlink transmission. The first reference signal is carried by the downlink sub-frames. The mobile terminal detects a broadcast indication of a second physical structure for carrying a second reference signal that relates to a second allocation of sub-frames for uplink and downlink transmissions that differs from the first allocation. The downlink sub-frames according to the second allocation carry the second reference signal. The mobile terminal measures the second reference signal of a neighbor cell as carried by the second physical structure.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: November 16, 2021
    Assignee: Optis Wireless Technology, LLC
    Inventors: Stefan Parkvall, David Astely, Erik Dahlman
  • Patent number: 11177848
    Abstract: Techniques are provided for signal detection based on the Gibbs phenomenon. A methodology implementing the techniques according to an embodiment includes transforming an input signal to the frequency domain and performing median filtering of amplitudes associated with frequency bins of the frequency domain transformed input signal. The median filtering is performed to attenuate longer duration or continuous signal components that may be present in the input signal. The method also includes identifying a sinc function main lobe in the median filtered signal, the sinc function associated with the Gibbs phenomenon. The method further includes detecting a discontinuity in the input signal based on the identified sinc function main lobe. The discontinuity is associated with a shorter duration signal component that is present in the input signal. Shorter duration signal components may include relatively narrow signal pulses and relatively fast rising or falling signal edges.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: November 16, 2021
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Michael A. Zalucki, Tyler M. Hayslett
  • Patent number: 11171749
    Abstract: A wireless communication system includes an infrastructure device for transmitting and receiving communications to and from a plurality of wireless user terminals. Each wireless user terminal includes a receiver and a controller configured to receive a plurality of orthogonal frequency division multiplexing (OFDM) signals on at least one downlink carrier frequency. Each of the plurality of OFDM signals includes assignment information. The receiver is configured to receive a plurality of downlink signals each responsive to a respective OFDM signal of the plurality of OFDM signals such that each downlink signal is received on a downlink carrier frequency and using a downlink spatial pattern. Further, the controller is configured to dynamically change the downlink carrier frequency of the receiver for receiving the plurality of downlink signals based on the plurality of OFDM signals, wherein the plurality of downlink signals have different spatial patterns.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: November 9, 2021
    Assignee: InterDigital Technology Corporation
    Inventors: Juan Carlos Zuniga, Teresa Hunkeler
  • Patent number: 11166262
    Abstract: A user equipment (UE) is described. The UE includes a processor and memory in electronic communication with the processor. Instructions stored in the memory are executable to acquire a first higher layer configuration indicating at least a long uplink control channel (PUCCH) resource configuration. The instructions are also executable to acquire a second higher layer configuration indicating multiple sets of PUCCH resource configurations. One set of PUCCH resource configurations within the multiple sets of PUCCH resource configurations include the long PUCCH resource configuration. The instructions are further executable to select a set of PUCCH resource configurations from the sets of PUCCH resource configurations based on a payload size of uplink control information (UCI). The instructions are additionally executable to transmit the UCI on a PUCCH resource, the PUCCH resource corresponding to a PUCCH resource configuration within the selected set of PUCCH resource configurations.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: November 2, 2021
    Assignees: FG Innovation Company Limited, Sharp Kabushiki Kaisha
    Inventors: Zhanping Yin, Toshizo Nogami
  • Patent number: 11166159
    Abstract: The present disclosure describes methods and apparatuses for secure fine timing measurement (FTM) with encoded long training fields (LTFs). In some aspects, a device transmits an announcement frame for an FTM exchange that includes an indication of encoding. Based on the indication of encoding, an LTF of a first null data packet (NDP) of the FTM exchange is encoded. The device transmits the first NDP having the encoded LTF to another device, and receives, from the other device, a second NDP having an encoded LTF. A round-trip time for the first and second NDPs with encoded LTFs is determined. Based on this round-trip time, a distance between the device and the other device can be determined. By encoding the LTFs of the NDPs of the FTM exchange, third parties can be prevented from spoofing an FTM frame to compromise the FTM exchange and related proximity-based security.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: November 2, 2021
    Assignee: Marvell Asia PTE, Ltd.
    Inventors: Christian Raimund Berger, Liwen Chu, Sudhir Srinivasa, Niranjan Grandhe
  • Patent number: 11165614
    Abstract: One example discloses an OFDM wireless communications device, including: a memory configured to support processing of OFDM tones; a controller, coupled to the memory, and configured to set the wireless communication device to a first mode and a second mode; wherein the first mode is configured to transmit or receive a first wireless communication signal having a first set of OFDM tones contained within an OFDM channel bandwidth; wherein the second mode is configured to transmit or receive a second wireless communication signal having a second set of OFDM tones contained within the OFDM channel bandwidth; and wherein the memory used for processing the first set of OFDM tones is same as the memory used for processing the second set of OFDM tones.
    Type: Grant
    Filed: November 16, 2020
    Date of Patent: November 2, 2021
    Assignee: NXP USA, Inc.
    Inventors: Sudhir Srinivasa, Yui Lin, Hongyuan Zhang, Mao Yu, Timothy J. Donovan
  • Patent number: 11159939
    Abstract: Techniques are disclosed for generating a featureless low-probability-of-intercept/low-probability-of-detection (LPI/LPD) waveform via a continuously variable symbol rate transmission. A continuous-phase-modulation (CPM) signal can be represented with a phase trellis. During each symbol duration, the trellis is traversed in either a positive or negative direction in a continuous fashion from the starting phase value to the end phase value. The rate at which the trellis is traversed is varied continuously as a time-varying function. The time-varying phase velocity function, or instantaneous symbol rate, is a type of spreading code or secret key shared between the transmitter and receiver. The disclosed techniques can be implemented with CPM compromising the constant-modulus property of CPM signals.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: October 26, 2021
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Jonathan P. Beaudeau, Prabahan Basu
  • Patent number: 11160105
    Abstract: Disclosed are a scheduling request transmission control method and a related product. In the method, a terminal acquires reference information about a first parameter needing to be indicated to a network side device, wherein the first parameter is a parameter associated with cached data to be transmitted of the terminal. The terminal queries a pre-set mapping relationship between information about the first parameter and information about a second parameter of a physical uplink control channel (PUCCH) resource, and acquires reference information, corresponding to the reference information about the first parameter, about the second parameter of the PUCCH resource, wherein the second parameter is a parameter associated with the PUCCH resource for transmitting a scheduling request (SR). The terminal transmits the SR for scheduling the cached data on the PUCCH resource determined by means of the reference information about the second parameter.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: October 26, 2021
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Yanan Lin, Zhi Zhang
  • Patent number: 11153820
    Abstract: Techniques are described for wireless communication. A method for wireless communication at a user equipment (UE) includes receiving, by the UE, a first transmission on a beam over a radio frequency spectrum during a first time interval. The first transmission includes an indication of a subsequent physical downlink control channel (PDCCH) transmission on the beam. The indication includes information about a PDCCH in a second time interval subsequent to the first time interval. The method also includes configuring a power saving state of the UE based at least in part on the indication. A method for wireless communication at a network access device includes transmitting the first transmission to at least one UE, and transmitting the PDCCH during the second time interval.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: October 19, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Sumeeth Nagaraja, Tao Luo, Aleksandar Damnjanovic, Karl Georg Hampel, Keiichi Kubota, Andrei Radulescu, Haitong Sun, Ozcan Ozturk, Peng Cheng, Linhai He
  • Patent number: 11138026
    Abstract: A computing system may include a server configured to host virtual computing sessions, and a client device. The client device may be configured to remotely access a virtual computing session from the server, and receive user input data associated with the virtual computing session and classify the data into first (higher priority) and second (lower priority) data packets. The client device may also be configured to send the first data packets to the server via a first virtual channel, and send the second data packets to the server via a second virtual channel having a higher packet loss rate associated therewith than the first virtual channel. The server may be configured to assemble the second data packets to reconstruct and inject the user input data into the virtual computing session based upon the first data packets.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: October 5, 2021
    Assignee: CITRIX SYSTEMS, INC.
    Inventor: Georgy Momchilov
  • Patent number: 11140646
    Abstract: Disclosed are a method and an apparatus for transmitting and receiving a synchronization signal in a communication system. According to an exemplary embodiment of the present disclosure, a method of transmitting a first synchronization signal, performed by a base station in the communication system, may comprise generating a base sequence; generating a modified sequence by inverting polarity of the base sequence; mapping the base sequence and the modified sequence to a first frequency region having a frequency higher than a center subcarrier and a second frequency region having a frequency lower the center subcarrier, so that the base sequence and the modified sequence are symmetric centering the center subcarrier located at a center frequency of a frequency domain of the synchronization signal; and transmitting the synchronization signal comprising the base sequence and the modified sequence to a terminal. Therefore, performance of the communication system can be improved.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: October 5, 2021
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Kap Seok Chang, Young Jo Ko, Yong Sun Kim, Sang Ho Lee
  • Patent number: 11139891
    Abstract: Devices and methods for bypassing a defective component in a combining network relaying respective upstream and downstream signals between a head end and a plurality of subscribers. The devices and methods may preferably redirect the upstream signal without redirecting the downstream signal using a wavelength-dependent filter.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: October 5, 2021
    Assignee: ARRIS Enterprises LLC
    Inventor: Joaquin Beas Bujanos
  • Patent number: 11140016
    Abstract: A leakage detection instrument may receive an electromagnetic signal radiated from a leakage location within a cable network system. The instrument may determine the leak based on spectral analysis and without the use of tagged or test signals.
    Type: Grant
    Filed: June 15, 2020
    Date of Patent: October 5, 2021
    Assignee: VIAVI SOLUTIONS INC.
    Inventor: Brent Hoffman
  • Patent number: 11133835
    Abstract: A method for improving signal to noise ratio in an uplink transmission. The method includes determining a plurality of combinations of “N” possible users to be selected among “X” users that are transmitting signals to a base station comprising “n” number of antennas, where n>=N, wherein selected “N” users transmit on a same sub-carrier; computing signal to noise ratio (SNR) of the signals received from each of the users among the determined combination of “N” possible users; and selecting at least one combination among the plurality of combinations of “N” possible users, such that, a combined signal to noise ratio of the selected combination is maximum among all combinations.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: September 28, 2021
    Inventor: Karthik Muralidhar
  • Patent number: 11128355
    Abstract: A transmission method simultaneously transmitting a first modulated signal and a second modulated signal at a common frequency performs precoding on both signals using a fixed precoding matrix and regularly changes the phase of at least one of the signals, thereby improving received data signal quality for a reception device.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: September 21, 2021
    Assignee: SUN PATENT TRUST
    Inventors: Yutaka Murakami, Tomohiro Kimura, Mikihiro Ouchi
  • Patent number: 11108599
    Abstract: Methods and devices are described for frequency domain equalization with low complexity and loop delay. A transmitter inserts pilot symbols into a data signal at intervals of every n data bits. These pilot symbols are used by a receiver-side frequency-domain equalizer to calculate error levels and equalize the received data signal to effect impairment compensation such as SOP tracking. QPSK or BPSK symbols may be used for the pilot symbols, simplifying error calculation into an addition operation instead of the conventional multiplication operation required by conventional FDEQs. Equalizers are described that may operate in a pilot-assisted mode, a conventional decision-directed mode, or both.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: August 31, 2021
    Assignee: Huawei Technologies Co. Ltd.
    Inventors: Chuandong Li, Jianhong Ke
  • Patent number: 11105912
    Abstract: A Wireless Local-Area Network (WLAN) access point includes a WLAN transmitter, a WLAN receiver, and a processor. The WLAN transmitter is configured to transmit WLAN packets and to send a timing-synchronization signal. The WLAN receiver is configured to receive echo packets including reflections from an object of the transmitted WLAN packets, to receive the timing-synchronization signal, and to time-synchronize the echo packets and the corresponding WLAN packets. The processor is configured to (a) in response to a gap in the received echo packets, generate one or more synthetic echo packets by interpolating over two or more of the time-synchronized received echo packets, to consequently derive a sequence of equally-spaced echo packets, (b) using the derived sequence of equally-spaced echo packets and the WLAN packets estimate one or more parameters of the object, and (c) output the estimated parameters to a user.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: August 31, 2021
    Assignee: CELENO COMMUNICATIONS (ISRAEL) LTD.
    Inventors: Hanoch Yokev, Albert Rapaport
  • Patent number: 11108609
    Abstract: A transmitter includes a processor configured to convert a primary sequence of modulation symbols into a primary signal using a universal pulse shape. The processor is further configured to convert an auxiliary sequence of modulation symbols, created from the primary sequence, to an auxiliary signal using an altered version of the universal pulse shape. In addition, the processor is configured to combine the primary signal and the auxiliary signal to create a joint output signal.
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: August 31, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Yoav Levinbook, Doron Ezri, Ezer Melzer
  • Patent number: 11096190
    Abstract: Methods and systems for wireless packet switching include determining a schedule for transceivers in an enclosure. The schedule specifies which of the transceivers will act as a transmitter and which will act as a receiver. A beamforming direction for transmitting data from each transmitter to each corresponding receiver is determined. It is determined that an angle of the beamforming direction for at least one transmitter is lower than a minimum angle. Data is transmitted from a transmitter to the corresponding receiver by a wired connection, responsive to the determination that the angle of the beamforming direction is lower than a minimum angle.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: August 17, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Mihai A. Sanduleanu, Laurent Schares
  • Patent number: 11080137
    Abstract: A programmable crossbar matrix or an array of steering multiplexors (MUXs) coalesces (i.e., routes) the data values from multiple known “bad” bit positions within multiple symbols of a codeword, to bit positions within a single codeword symbol. The single codeword symbol receiving the known “bad” bit positions may correspond to a check symbol (vs. a data symbol). Configuration of the routing logic may occur at boot or initialization time. The configuration of the routing logic may be based upon error mapping information retrieved from system non-volatile memory (e.g., memory module serial presence detect information), or from memory tests performed during initialization. The configuration of the routing logic may be changed on a per-rank basis.
    Type: Grant
    Filed: May 8, 2020
    Date of Patent: August 3, 2021
    Assignee: Rambus Inc.
    Inventor: John Eric Linstadt
  • Patent number: 11071072
    Abstract: A preamble symbol receiving method includes, receiving a signal, processing the received signal, determining whether the processed signal contains the preamble symbol, in response to determining that the processed signal contains the preamble symbol, determining the position of the preamble symbol and resolving signaling information carried by the preamble symbol. The preamble symbol includes at least one time-domain symbol generated using a free combination of any number of first three-segment structures and second three-segment structures according to a predefined generation rule.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: July 20, 2021
    Inventors: Ge Huang, Hongliang Xu, Guanbin Xing, Wenjun Zhang, Xufeng Guo
  • Patent number: 11064477
    Abstract: An embodiment provides an information monitoring method, a terminal, and a network device. The method includes: allocating, by a network device, a first frequency domain resource to a terminal, where the first frequency domain resource is used as a bandwidth part of the terminal; obtaining, by the network device, a bandwidth capability of the terminal, and determining, based on the bandwidth capability and the first frequency domain resource, a second frequency domain resource allocated to the terminal, where the second frequency domain resource is used by the terminal to monitor common information; and sending, by the network device, indication information, where the indication information is used to indicate the second frequency domain resource. According to embodiments, common information and information about a terminal can be simultaneously monitored, thereby improving information monitoring efficiency.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: July 13, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Junchao Li, Hao Tang, Fan Wang, Zhenfei Tang