Patents Examined by David S Huang
  • Patent number: 11368188
    Abstract: Disclosed are a carrier channel control method and apparatus, a storage medium and a processor. The carrier channel control method includes: applying an air conditioner control signal to a power line carrier to obtain a power line communication (PLC) signal, wherein, the power line carrier comprises a plurality of communication subcarriers; determining PLC noise values respectively corresponding to each of the communication subcarriers used to transmit the PLC signal; generating state data of carrier channels respectively corresponding to the communication subcarriers based on each of the PLC noise values which corresponds to one of the communication subcarriers, wherein each of the carrier channels respectively corresponds one of the communication subcarriers; and controlling each of the carrier channels respectively according to the state data of each of the carrier channels.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: June 21, 2022
    Assignee: Gree Electric Appliances, Inc. of Zhuhai
    Inventors: Weiyou Yu, Jie Tang, Quanzhou Liu, Zhongzheng Li, Wencan Wang, Zhongwen Deng, Tieying Ye
  • Patent number: 11362725
    Abstract: There is provided mechanisms for reshaping individual beams of a beam pattern. A method is performed by a control node. The method comprises determining the beam pattern by distributing available transmission energy in individual beams according to a weighted combination of the individual beams. Different weights are applied for at least two of the individual beams. The weighted combination of individual beams is based on radio propagation channel properties. The method comprises truncating transmission energy of the individual beam with highest transmission energy in the beam pattern to not be over a threshold. The method comprises redistributing the truncated transmission energy among the remaining individual beams in the beam pattern, thereby reshaping the individual beams of the beam pattern.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: June 14, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Joao Vieira, Leif Wilhelmsson, Tai Do, Peter Alriksson
  • Patent number: 11356150
    Abstract: The present invention concerns a cellular communication network having a base station serving a radio cell and at least one user equipment located within the radio cell, wherein the base station is configured to receive a radio signal from the user equipment and to determine at least one signal property of the received radio signal, wherein the base station is further configured to assign a user equipment identifier to the user equipment based on the a least one determined signal property. The present invention further concerns a base station to be used in the above mentioned cellular network as well as corresponding methods.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: June 7, 2022
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Martin Kasparick, Renato Luis Garrido Cavalcante, Dennis Wieruch, Josef Bernhard, Gerd Kilian, Benjamin Sackenreuter, Bernd Holfeld, Thomas Fehrenbach
  • Patent number: 11349546
    Abstract: Methods and an apparatus are disclosed for orthogonal frequency division multiplexing (OFDM) and/or single carrier (SC) based multiple input multiple output (MIMO) hybrid beamforming (HBF) including determining the capabilities of a station (STA) such as the capability for hybrid beamforming, single user MIMO (SU-MIMO), and multi user MIMO (MU-MIMO). An announcement frame with a control trailer may be transmitted to signal a transmission configuration. The announcement frame may be a grant frame or a request to send (RTS) frame if the STA is SU-MIMO capable or a RTS frame or a DMG clear to send (CTS)-self frame if the STA is MU-MIMO capable. One or more directional multi-gigabit (DMG) antennas may be configured based on the announcement frame. One or more sounding symbols may be transmitted and feedback may be provided based on the sounding symbols. An HBF signal may be transmitted based on the sounding symbol(s) and/or feedback.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: May 31, 2022
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Oghenekome Oteri, Alphan Sahin, Hanging Lou, Li Hsiang Sun, Rui Yang
  • Patent number: 11342960
    Abstract: In a relay device, a communication unit receives a data frame transmitted cyclically through a communication line. A control unit stores, in a temporary storage unit, the data frame received by the communication unit. When the data frame stored in the temporary storage unit is transmitted, the control unit deletes the transmitted data frame from the temporary storage unit. When the control unit determines that, for the data frame received through the communication line, the amount of data relevant to the data frames stored in the temporary storage unit is equal to or greater than a threshold value, the communication unit transmits, through the communication line, a cycle change frame which gives an instruction to change a transmission cycle for transmitting the data frame to a longer cycle.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: May 24, 2022
    Assignees: AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Yuanjun Xian, Makoto Mashita, Takeshi Hagihara, Akihito Iwata, Takehiro Kawauchi, Ichiro Kanda
  • Patent number: 11336312
    Abstract: A radio frequency module includes: a switch that includes: a common terminal connected to a first common transmission path; a first selection terminal connected to a first transmission path; and a second selection terminal connected to a second transmission path, and switches between connecting the common terminal to the first selection terminal and to the second selection terminal; a transmission power amplifier disposed on the module board and on first common transmission path; and first circuit components disposed on a reception path. The first transmission path is a path through which a transmission signal of a first communication band is transferred, the second transmission path is a path through which a transmission signal of a second communication band is transferred, the switch is disposed on a first principal surface, and at least one of the first circuit components is disposed on a second principal surface.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: May 17, 2022
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Morio Takeuchi, Yukiya Yamaguchi, Yoichi Sawada
  • Patent number: 11329852
    Abstract: A method of determining reserved tones to be used for reduction of a peak to average power ratio (PAPR) of a signal includes: randomly selecting carrier indices for the reserved tones and generating a kernel signal based on the randomly selected carrier indices; calculating a comparison reference average value of the kernel signal, comparing the calculated comparison reference average value with a prestored comparison reference average value, and preliminarily determining carrier indices of the reserved tones based on the comparison; randomly re-arranging an order of the preliminarily determined carrier indices of the reserved tones; and calculating the comparison reference average value while changing each of the re-arranged indices of the reserved tones, and finally determining carrier indices for which the calculated comparison reference average value becomes the smallest value as carrier indices of the reserved tones.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: May 10, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Joo-sung Park, Young-ho Oh
  • Patent number: 11329853
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive a resource allocation indicating a plurality of transmission tones comprising a subset of data tones of a plurality of data tones and a subset of peak reduction tones (PRTs) of a plurality of PRTs, wherein the resource allocation indicates locations for the plurality of data tones and locations for the plurality of PRTs within a particular bandwidth, wherein the locations for the plurality of PRTs are arranged relative to the locations for the plurality of data tones according to a PRT subsequence of a universal PRT sequence, and wherein the PRT subsequence corresponds to a sub-band of the particular bandwidth; and transmit a data transmission using a waveform based at least in part on the resource allocation. Numerous other aspects are provided.
    Type: Grant
    Filed: May 3, 2021
    Date of Patent: May 10, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Saeid Sahraei, Gokul Sridharan, Hung Dinh Ly, June Namgoong, Krishna Kiran Mukkavilli, Naga Bhushan, Tingfang Ji, Peter Gaal, Taesang Yoo, Shimman Arvind Patel
  • Patent number: 11329688
    Abstract: One embodiment is directed to a system that comprises a non-DPD RF transceiver circuit that does not include digital pre-distortion (DPD) functionality and a DPD RF transceiver integrated circuit that includes DPD functionality. A first analog RF transmit signal output by the non-DPD RF transceiver circuit is received by a receive signal path of the DPD RF transceiver integrated circuit so that receive baseband data generated by the receive signal path is indicative of the first analog RF transmit signal. The receive baseband data generated by the DPD RF transceiver integrated circuit is received by a transmit signal path of the DPD RF transceiver integrated circuit. A second analog RF transmit signal output by the transmit signal path is a digitally pre-distorted version of the first analog RF transmit signal for amplification by the power amplifier.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: May 10, 2022
    Assignee: CommScope Technologies LLC
    Inventors: Patrick Braun, Christoph Gollinger
  • Patent number: 11316719
    Abstract: A transmitting apparatus, a receiving apparatus corresponding to the transmitting apparatus, and a transmitting-receiving system including: a first A/D converting part that converts an analog audio signal into a digital signal; a compressing part that compresses the converted digital signal; a modulating part that generates a modulated signal by modulating the compressed digital signal; an all-pass filter that reduces a phase distortion included in the modulated signal; and a transmitting part that transmits a phase-distortion-cancelled signal resulting from reducing the phase distortion of the modulated signal with the all-pass filter are provided.
    Type: Grant
    Filed: April 16, 2021
    Date of Patent: April 26, 2022
    Assignee: AUDIO-TECHNICA CORPORATION
    Inventor: Ariisa Wada
  • Patent number: 11304068
    Abstract: The present disclosure relates to a 5th generation (5G) or pre-5G communication system for supporting a higher data transmission rate beyond a 4th generation (4G) communication system such as long-term evolution (LTE). The present disclosure relates to beam management in a wireless communication system, and an operation method of a base station may comprise the steps of: transmitting first type reference signals; receiving feedback information on the first type reference signals; transmitting information on resources for second type reference signals, which are allocated on the basis of the feedback information, to at least one terminal; and transmitting the second type reference signals through the resources, wherein the second type reference signals are transmitted using fixed transmission beams by the base station. The present research has been conducted with the support of the “cross-departmental giga KOREA project” of the government (the ministry of science and ICT) in 2017 (No.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: April 12, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Namkoo Kang, Giwon Lee, Jaehyun Hwang, Jin Park, Kangeun Lee, Chiwoo Lim
  • Patent number: 11304289
    Abstract: A system for reducing near-end crosstalk (NEXT) includes a first electrical component contributing to a first NEXT pulse of a first polarity and a second electrical component receiving the first NEXT pulse at a first time delay (td). A circuit couples the first electrical component to the second electrical component to create a second NEXT pulse of a second polarity and delays the second NEXT pulse by an amount equal to the first time delay (td). The first and second NEXT pulses are combined to reduce the first NEXT pulse. A method for reducing NEXT includes coupling a first component contributing to a first NEXT pulse of a first polarity and a second component to create a second NEXT pulse of a second polarity, delaying the second NEXT pulse, and combining the second NEXT pulse with the first NEXT pulse to reduce the first NEXT pulse.
    Type: Grant
    Filed: August 14, 2020
    Date of Patent: April 12, 2022
    Assignee: DY4 SYSTEMS, INC.
    Inventors: Robert C. Sullivan, Gerald W. Foster, Ivan Straznicky
  • Patent number: 11303331
    Abstract: A communication device includes a processing circuit, the processing circuit being configured as: mapping a first information bit part used for a receiving end to a corresponding channel based on a pre-set mapping rule so as to execute spatial modulation with respect to the first information bit part of the receiving end; allocating a transmission power to the receiving end; and controlling the transmission power allocated through a mapped channel to transmit a second information bit part used for the receiving end. In the case of the first information bit parts used for multiple receiving ends being the same, the channels mapped for multiple receiving ends are the same. The multi-user spatial modulation performs spatial modulation for multiple receiving ends at the same time through a multiplexing channel of the transmitting end, improving the additional modulation order and the data transmission rate which can be obtained by each receiving end.
    Type: Grant
    Filed: January 27, 2021
    Date of Patent: April 12, 2022
    Assignee: SONY CORPORATION
    Inventors: Xudong Zhu, Zhaocheng Wang, Jianfei Cao
  • Patent number: 11303337
    Abstract: A first radio node including processing circuitry configured to configure the first radio node to: obtain a first interference subspace, obtain beamforming weights based on the first interference subspace where the beamforming weights configured to modify a radiation pattern in at least one communication direction of at least one interference source, and perform wireless communications based on the beamforming weights.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: April 12, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Alex Stephenne, Pierre-Andre Laporte, Mark William Wyville
  • Patent number: 11297550
    Abstract: A wireless device activates a first uplink bandwidth part (BWP) of a first cell. A beam failure of a second cell is detected. The wireless device switches, based on the first uplink BWP not being configured with one or more beam failure recovery resources for the second cell, from the first uplink BWP to a second uplink BWP, of the first cell, configured with the one or more beam failure recovery resources. An uplink signal indicating the beam failure is transmitted via the second uplink BWP.
    Type: Grant
    Filed: November 8, 2020
    Date of Patent: April 5, 2022
    Assignee: Ofinno, LLC
    Inventors: Ali Cagatay Cirik, Esmael Dinan, Hua Zhou, Hyoungsuk Jeon, Alireza Babaei, Kyungmin Park
  • Patent number: 11297579
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may filter a group of uplink reference signals so that filtering delays of the group of uplink reference signals are consistent based at least in part on a filtering constraint for the group of uplink reference signals; and transmit the group of uplink reference signals. Numerous other aspects are provided.
    Type: Grant
    Filed: January 20, 2020
    Date of Patent: April 5, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Sony Akkarakaran, Wei Yang, Alexandros Manolakos
  • Patent number: 11283569
    Abstract: This application provides a data transmission method, a network device, and a terminal device. The method includes: generating, by the network device, first information, where a value of a bit included in the first information is used to indicate a demodulation reference symbol (DMRS) port combination in a second set, each DMRS port combination in the second set belongs to a first set, the first set includes a plurality of DMRS port combinations, the DMRS port combination includes at least one DMRS port, and a quantity of DMRS port combinations included in the second set is less than a quantity of DMRS port combinations included in the first set; and sending, by the network device, the first information to the terminal device. According to embodiments of this application, signaling overheads can be reduced.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: March 22, 2022
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Ruiqi Zhang, Jianqin Liu
  • Patent number: 11283666
    Abstract: A wireless communications system includes a stochastic pre-distortion actuator configured to receive a carrier-modulated signal and convert the carrier-modulated signal into an output signal. The system includes one or more antennas configured to receive the output signal and transmit the output signal, one or more power amplifiers electrically coupled between the pre-distortion actuator and the one or more antennas and a receiver configured to receive the output signal over-the-air and generate feedback based on the output signal. The pre-distortion actuator is configured to generate the output signal by applying a correction to the carrier-modulated signal that cancels out nonlinearities associated with the one or more antennas and/or the one or more power amplifiers. The pre-distortion actuator is configured based on the feedback.
    Type: Grant
    Filed: February 25, 2021
    Date of Patent: March 22, 2022
    Assignee: Space Exploration Technologies Corp.
    Inventors: Martin S. McCormick, Feipeng Wang
  • Patent number: 11283492
    Abstract: According to the present invention, a transmitting station apparatus includes: a plurality of modulation units that modulates a plurality of streams into which transmission data is divided to generate a plurality of first data signals; a training signal generation unit that generates a known training signal; a linear equalization unit that linearly equalizes the plurality of first data signals using a tap coefficient for removing inter-antenna interference and inter-symbol interference and outputs second data signals on which transmission beam forming and equalization are simultaneously performed; and a plurality of transmitting station communication units that transmit the training signal or the second data signals to a receiving station apparatus and receive the tap coefficient from the receiving station apparatus, and a receiving station apparatus includes: a coefficient estimation unit that estimates a channel impulse response from the training signal and calculates the tap coefficient based on the channe
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: March 22, 2022
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Keita Kuriyama, Hayato Fukuzono, Masafumi Yoshioka, Tsutomu Tatsuta
  • Patent number: 11271696
    Abstract: There is provided mechanisms for performing beam management. A method is performed by a radio transceiver device. The method comprises transmitting a reference signal in a transmission beam as part of the beam 5 management. The reference signal in the transmission beam occupies time/frequency resources that extend over a frequency interval. The transmission beam has a frequency-dependent polarization over the frequency interval.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: March 8, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Andreas Nilsson, Fredrik Athley, Sven Petersson