With A Matrix Patents (Class 342/373)
  • Patent number: 11563510
    Abstract: Methods, systems, and devices for wireless communications are described. Communications by wireless devices may be modified when beam pair links (BPLs) experience decreased link quality. For example, a controlling wireless device may communicate with a secondary wireless device using a set of BPLs. The controlling and secondary wireless device may each cycle through the set of BPLs at respective times of a communication time period. Upon detecting one or more BPLs having a decreased link quality during a portion of the communication time period, the controlling wireless device may transmit a configuration modifying the communications. For instance, the modified communications may include replacing the one or more BPLs with different BPLs having a relatively higher link quality. In other cases, the modified communications may include using repeated transmissions during the portion of the communication time period or excluding the BPLs experiencing decreased link quality from the communication time period.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: January 24, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Yan Zhou, Tao Luo, Makesh Pravin John Wilson
  • Patent number: 11564020
    Abstract: A radio frequency (RF) beam transmission component having optical inputs and electrical outputs may include a wavelength selective switch (WSS) that has a plurality of optical WSS outputs. Each optical WSS output may be configured to transmit one or more wavelengths of the incoming optical signals. The RF beam transmission component may include a plurality of photodetectors (PD), each photodetector having an optical PD input coupled to one or more of said plurality of optical WSS outputs and a corresponding electrical output of a plurality of PD electrical outputs. The RF beam transmission component may further include a lens that has a plurality of electrical inputs and each electrical input may be electrically coupled to at least one of the plurality of electrical PD outputs. The lens may further have a plurality of electrical lens output ports.
    Type: Grant
    Filed: June 1, 2021
    Date of Patent: January 24, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Mu Xu, Luis Alberto Campos, Zhensheng Jia, Lin Cheng
  • Patent number: 11552696
    Abstract: A relay station includes a beam formation unit capable of emitting multiple beams to multiple respective emission areas. The beam formation unit forms clusters each from two or more of the emission areas, and emits the beams based on assignment information indicating which slot is assigned to which of the emission areas on a per cluster basis. One emission area belongs to multiple clusters.
    Type: Grant
    Filed: November 5, 2020
    Date of Patent: January 10, 2023
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Shigenori Tani, Katsuyuki Motoyoshi
  • Patent number: 11533246
    Abstract: Intelligent network probe placement optimization (e.g., using a computerized tool) is enabled. A method can comprise determining, from an inventory database, physical interfaces and service paths for data traffic to be monitored, according to a two-way active management protocol, with respect to network interfaces between cloud compute elements in a leaf-spine cloud fabric and radio access network equipment, based on the cloud compute elements, determining directed acyclic graph information representative of a directed acyclic graph of connections between the cloud compute elements and other cloud compute elements in the leaf-spine cloud fabric other than the cloud compute elements, and based on the directed acyclic graph information, determining a number and a distribution of probes to be employed at at least some of the physical interfaces and the service paths to monitor a parameter of the data traffic according to the two-way active management protocol.
    Type: Grant
    Filed: October 4, 2021
    Date of Patent: December 20, 2022
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Kartik Pandit, Kevin D'Souza
  • Patent number: 11525911
    Abstract: Systems and methods to control a radar system to perform cross-traffic management in a vehicle with a trailer involve determining a location of the trailer behind the vehicle, and adjusting an initial field of view of the radar system to a modified field of view that excludes the location of the trailer. One or more other vehicles are detected with the radar system having the modified field of view. A cross-traffic alert is implemented based on the detecting the one or more other vehicles.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: December 13, 2022
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Jay H. Sim, Justin K. Francisco, Kevin G. Korchmaros
  • Patent number: 11522590
    Abstract: A wireless communication apparatus includes a first antenna circuit that forms a beam selected from among a plurality of first beams through a beamforming process performed for communication using a millimeter wave band and a monitor that displays a first pattern indicating a radiation direction of the selected beam.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: December 6, 2022
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Naganori Shirakata, Masayuki Shimizu, Koji Takinami
  • Patent number: 11496192
    Abstract: Phased array antenna systems and methods for operating phased array antenna systems to efficiently generate multiple beams from a single phased array aperture are disclosed. Elements included in a phased array antenna are randomly assigned to generate one of first or second beams. A phase index for the first set of elements is iterated n times, and a total difference in phase amounts for neighboring elements belonging to different ones of the first and second sets is calculated for each of the n iterations. The phase index resulting in the smallest calculated difference is applied to generate the first beam. The first and second beams are generated from the single phased array aperture simultaneously.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: November 8, 2022
    Assignee: Ball Aerospace & Technologies Corp.
    Inventors: Zachary T. Miers, Ryan Jennings
  • Patent number: 11469499
    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as long term evolution (LTE). According to various embodiments, an antenna apparatus may include: an array antenna including a sub-array, a power divider, and a reconfigurable phase shifter circuit, the reconfigurable phase shifter circuit may be configured to provide a first phase shift value based on a switch in a first state, and provide a second phase shift value different from the first phase shift value based on the switch in a second state.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: October 11, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yoongeon Kim, Seungho Choi, Seungtae Ko, Youngsub Kim, Youngju Lee
  • Patent number: 11463134
    Abstract: Wi-Fi communication is further secured by perturbation of a spatial mapping matrix. In an embodiment channel state information is obtained from a receiving device in a wireless network through the wireless network. A first set of beam steering vectors is derived based on the channel state information to direct a radio signal to the receiving device. A second set of beam steering vectors is derived based on the channel state information to direct a radio signal other than to the receiving device. A perturbation matrix is generated. A spatial mapping matrix is formed by combining the first and the second set of beam steering vectors with a perturbation matrix. Data symbols to be transmitted are pre-coded to the receiving device using the spatial mapping matrix and transmitted through the wireless network to the receiving device.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: October 4, 2022
    Assignee: NXP USA, INC.
    Inventors: Sayak Roy, Ankit Sethi, Sudhir Srinivasa
  • Patent number: 11438044
    Abstract: Solutions to determine how to form beams when co-operating multiple-input multiple-output antenna panels are used are disclosed. Beams are formed according to sets of beamforming weights corresponding to minimized total transmit power from an antenna array of interest to served terminal devices. Optimization to minimize total transmit power subject to a predefined constraint on a minimum allowable expected value of signal-to-interference-plus-noise ratio, SINR, is performed. In the optimization expected values of SINR for a terminal device are calculated based on based on the sets of beamforming weights for at least the served terminal devices, and weighted second order statistics, wherein a weighting factor for second order statistics between the served terminal devices and the antenna array is one and weighting factors for the other second order statistics less than one. The second order statistics are included in maintained channel state information.
    Type: Grant
    Filed: March 15, 2022
    Date of Patent: September 6, 2022
    Assignee: Nokia Solutions and Networks Oy
    Inventors: Olli Juhani Piirainen, Jari Vilho Ylioinas
  • Patent number: 11424811
    Abstract: This disclosure relates to an antenna array circuitry for analog beamforming, the antenna array circuitry comprising: a plurality of antenna elements, wherein each antenna element is configured to receive a respective analog signal (r(1,t), r(2,t), r(N,t)), wherein the plurality of antenna elements is adjustable based on a code-word, wherein the code-word comprises respective phase configurations (?p(1), ?p(2), ?p(N)) of the plurality of antenna elements, wherein the code-word is based on a superposition of a predetermined set of basic code-words, wherein each basic code-word associates with a corresponding sub-beam, wherein a main radiation lobe of the corresponding sub-beam points in a predefined spatial direction.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: August 23, 2022
    Assignee: INTEL CORPORATION
    Inventors: Zhibin Yu, Ansgar Scherb, Andre Janssen, Bertram Gunzelmann, Yeong-Sun Hwang, Holger Neuhaus
  • Patent number: 11425627
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station (BS) may determine, for a user equipment (UE) operating in a mobility state, route information. The BS may transmit, to the UE, information identifying a set of beams based at least in part on the route information. The UE may perform a set of neighbor cell measurements, in connection with movement along the predicted route, using the set of beams. Numerous other aspects are provided.
    Type: Grant
    Filed: August 10, 2020
    Date of Patent: August 23, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Ran Berliner, Guy Wolf, Shay Landis
  • Patent number: 11415668
    Abstract: A switching device for a radar target emulator is provided comprising: at least one first switch arrangement and a second switch arrangement, each having a branching device designed to receive a first input signal and diverge it into a branch signal and a first output signal, a switch adapted to transmit the branch signal in a first switching state within the switch arrangement and to not transmit in a second switching state, and adding means designed to emit the signal transmitted in the first switching state of the switch, at least as components of a second output signal. The first switching arrangement and the second switching arrangement are interconnected in such a way that a first input signal of the second switching arrangement comprises a first output signal of the first switching arrangement, or a second input signal of the second switching arrangement comprises a second output of the first switching arrangement.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: August 16, 2022
    Assignee: AVL List GmbH
    Inventors: Andreas Gruber, Michael Ernst Gadringer, Helmut Schreiber, Michael Vorderderfler
  • Patent number: 11374630
    Abstract: A method for reporting channel state information (CSI) by means of a terminal in a wireless communication system, according to one embodiment of the present invention, comprises the steps of: receiving a channel state information reference signal (CSI-RS) from a base station, wherein the CSI-RS is related to at least one panel of an antenna array of the base station; generating CSI on the basis of the CSI-RS and a codebook according to a specific shape of the at least one panel; and reporting the CSI to the base station.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: June 28, 2022
    Assignees: LG Electronics Inc., Sogang University Research Foundation
    Inventors: Jonghyun Park, Jiyeong Yang, Wonjin Sung, Haewook Park
  • Patent number: 11366232
    Abstract: The system and method for dynamic mode forming for a global positioning/global navigation system. The system having a controlled reception pattern antenna (CRPA) mounted on a platform; an antenna electronics subsystem configured for dynamically maximizing gain in the controlled reception pattern antenna; and a global positioning/global navigation receiver subsystem configured for null processing, wherein a state of the platform is used to modify a reference mode and a plurality of auxiliary modes for the controlled reception pattern antenna in real-time based on an apriori look up table (LUT) to dynamically maximize a gain of the controlled reception pattern antenna.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: June 21, 2022
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventor: Martin F. Ryba
  • Patent number: 11336028
    Abstract: An omnidirectional MIMO antenna system includes a multi-panel antenna, each panel including a plurality of antenna elements and a plurality of beam forming networks employing Butler matrices. Each Butler matrix has the same number of input ports and output ports. The total number of the input ports of the Butler matrices is equal to the number of ports of the MIMO antenna, each of the input ports receiving the same signal. Each of the output ports of each of the Butler matrices is coupled to an antenna element within the plurality of the antenna elements, such that the multi-panel antenna exhibits a quasi-omnidirectional beam pattern.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: May 17, 2022
    Assignee: COMMUNICATION COMPONENTS ANTENNA INC
    Inventors: Lin-Ping Shen, Seyed Hamidreza Jamali
  • Patent number: 11336327
    Abstract: Techniques and apparatuses are described for enabling base stations (121, 122) to coordinate for canceling cross-link interference (380). The techniques and apparatuses described herein overcome challenges that a single base station (121) might otherwise face in trying to compensate a reception (131) by the base station (121) for cross-link interference (382) from a transmission (132) by another base station (122). The techniques and apparatuses described herein enable the base stations (121, 122) to form coordination sets to exchange information to enable the base stations (121, 122) to accurately reconstruct cross-link interference (380) and ultimately cancel the cross-link interference (380) to improve link quality.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: May 17, 2022
    Assignee: Google LLC
    Inventors: Jibing Wang, Erik Richard Stauffer
  • Patent number: 11329398
    Abstract: An antenna device is presented. The antenna device comprises: a conformal antenna body which has a desired geometry corresponding to a front portion of a platform on which the antenna device is to be mounted, and an antenna unit carried by the antenna body. The antenna unit comprises at least one phased array of antenna elements. The antenna elements of each array are arranged in a spaced-apart relationship in a closed loop path along a circumference of the antenna body having a desired geometry corresponding to a front portion of platform on which the antenna unit is to be mounted. Each of the antenna elements is configured as an end-fire antenna element capable of emitting linearly polarized radiation, the array of the antenna elements being thereby operable as a forward looking end-fire antenna array, enabling electronic steering of an antenna beam by controllably modifying phases of the antenna elements of each array.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: May 10, 2022
    Assignee: ISRAEL AEROSPACE INDUSTRIES LTD.
    Inventor: Vladimir Rojanski
  • Patent number: 11323865
    Abstract: A system is described for tracking vehicle position using a smart phone or similar device as an active transponder that communicates with roadside equipment. The system may uses existing RF transceivers on the smart-phone, such as Bluetooth® LE or WiFi to periodically transmit an identifying message. Road-based equipment detects and locates the smart phone. In a further aspect, the smart phone is alerted by roadside beacons and responds with identification information. Transaction processing may be performed either on the smart phone or by roadside or back office equipment. The system may be used for automated roadway tolling and monitoring and also for access control. A coded card may be scanned by the smart card to enter identification for access control.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: May 3, 2022
    Assignee: Amtech Systems, LLC
    Inventors: Kelly Gravelle, John Todd Elson, Greg Lantz, Michael Melville, Paul Hamel, Yousuf Kamal
  • Patent number: 11309629
    Abstract: Base station antennas include a plurality of multiplexer filters and a multi-column array of radiating elements that includes a plurality of sub-arrays. Each filter may have a first and second ports that are configured to pass RF signals in respective first and second frequency bands and a third common port that is coupled to a respective one of a plurality of sub-arrays. These antennas also include first frequency band ports that are coupled to the first ports of respective subsets of the multiplexer filters and second frequency band ports that are coupled to the second ports of at least some of the multiplexer filters. The antenna may operate as a MIMO sector antenna in the first frequency band and as a sector-splitting antenna in the second frequency band.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: April 19, 2022
    Assignee: CommScope Technologies LLC
    Inventor: Martin L. Zimmerman
  • Patent number: 11309634
    Abstract: A novel synthetic uniform circular array (SUCA) method for generating vortex electromagnetic (EM) wave carrying high orbital angular momentum (OAM) mode has the following steps. N antenna elements are placed radially to form a uniform circular array (UCA), where N is a positive integer. By rotating the array elements to various spatial locations, modifying their feeding phases, and superimposing the generated fields at various spatial locations, SUCA can beat the limit of space and configure more array elements to generate vortex electromagnetic (EM) waves carrying high mode OAMs. Meanwhile, due to the more synthetic array elements and smaller aperture than the traditional UCA, the purity of OAM mode is higher and it is more flexible to adjust the main lobe directions of these vortex waves carrying different OAM modes, and can generate vortex EM waves.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: April 19, 2022
    Assignees: CHENGDU INSTITUTE OF BIOLOGY, CHINESE ACADEMY OF SCIENCES, UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA
    Inventors: Haibo Jiang, Zijun Chen, Yubin Gong, Yang Yang, Shaomeng Wang, Chengbo Gui, Jiangnan Fu, Xinyang He
  • Patent number: 11303333
    Abstract: According to an aspect, there is provided an apparatus for performing beamforming optimization for a MIMO architecture. The apparatus maintains, in a database, channel state information of a plurality of radio channels comprising first and second order statistics. The apparatus calculates, separately for each of two or more remote radio units using an eigenbeamforming scheme, first sets of beamforming weights based on the second order statistics. Then, the apparatus performs, for each terminal device, single-user MIMO optimization between the two or more remote radio units to maximize a pre-defined metric, being a mutual information metric or signal-to-interference-plus-noise, based on first sets of beamforming weights and the first order statistics. The result, for each terminal device, is a second set of beamforming weights. The apparatus causes transmitting data using beams formed by applying both first and second sets of optimized beamforming weights at the two or more remote radio units.
    Type: Grant
    Filed: July 16, 2021
    Date of Patent: April 12, 2022
    Assignee: NOKIA TECHNOLOGIES OY
    Inventors: Olli Piirainen, Jari Ylioinas
  • Patent number: 11269052
    Abstract: A signal processing method is provided. First, at least one transmitted signal is output to at least one target, and the target reflects at least one reflected signal to receiving antennas, which then generate receiving signals upon receipt of the reflected signal. Next, the transmitted signal and each receiving signal are processed to generate processing signals. The processing signals are arranged in a form of matrix, to generate a channel coefficient matrix having M×N channel coefficient matrix blocks. Next, the channel coefficient matrix is divided into Ndivide×Mdivide secondary channel coefficient matrices, which are then substituted into a snapshot vector matrix equation to generate a snapshot vector matrix for calculating an angle of the target. The signal processing method can establish an optimal secondary channel coefficient matrix arrangement by using a special signal preprocessing manner, to improve the resolution and accuracy of the estimated angle parameter of the target.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: March 8, 2022
    Assignee: National Chiao Tung University
    Inventors: Ta-Sung Lee, Yu-Chien Lin, Yun-Han Pan
  • Patent number: 11259212
    Abstract: A dynamic satellite load balancing system measures geographic position and travel information of in-flight aircraft in a fleet of aircraft equipped to establish in-flight connectivity services from a plurality of satellite beams. The in-flight aircraft include an on-board satellite map program with satellite map parameters to indicate which satellite beam of a group of available satellite beams is the most desirable based on the in-flight aircraft's geographic location. The system selects in-flight aircraft, determines load balanced satellite map parameters for the selected aircraft, and transmits the load balanced satellite map parameters to the aircraft to assemble load balanced satellite map programs to relieve wireless data communication saturation conditions on one or more of the satellite beams.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: February 22, 2022
    Assignee: GOGO BUSINESS AVIATION LLC
    Inventors: David J. Montsma, Erhard G. Trudrung, Paul J. Powers, Marc A. Nesheim
  • Patent number: 11239891
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, to a base station, a report indicating that a cooperative reception group including the UE and one or more other UEs connected to the UE over an out-of-band link supports one or more downlink transmit beamforming techniques. The UE may determine, based at least in part on the one or more downlink transmit beamforming techniques supported by the cooperative reception group, a downlink transmit precoder associated with relaxed beamforming nulling. The UE may decode a downlink transmission received from the base station based at least in part on the downlink transmit precoder and one or more decoded bits received from the one or more other UEs in the cooperative reception group. Numerous other aspects are provided.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: February 1, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Yisheng Xue, Xiaoxia Zhang, Weiliang Zeng, Yongbin Wei
  • Patent number: 11223140
    Abstract: A holographic antenna includes a transmission line and a plurality of interdigital capacitor (IDC) slots respectively formed along the transmission line. The holographic antenna also includes an active tuning device connected to each IDC slot from the plurality of IDC slots. Each active tuning device is configured to provide a holographic pattern on the plurality of IDC slots in response to the holographic antenna transmitting or receiving an electromagnetic signal. The holographic pattern is controllable for scanning an electromagnetic beam by the holographic antenna. The holographic antenna also includes a biasing source coupled to each active tuning device and configured to control its respective operation.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: January 11, 2022
    Assignee: The Boeing Company
    Inventors: Hanseung Lee, Ryan G. Quarfoth, Amit Madanlal Patel, James H. Schaffner
  • Patent number: 11211719
    Abstract: An antenna arrangement (1) comprising a dual polarized antenna array (10) and a reconfigurable feed network (17) connected thereto is provided.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: December 28, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON
    Inventors: Sven Petersson, Andreas Nilsson
  • Patent number: 11211982
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first wireless communication device may select a lens, of a set of candidate lenses, and a butler matrix, of a set of candidate butler matrixes, to communicate a signal with a second wireless communication device, wherein the lens is spaced, from the butler matrix, at a distance that is at least a far field length of the lens for a frequency associated with the signal. The first wireless communication device may communicate, with the second wireless communication device, the signal via a beam of the butler matrix and the lens. Numerous other aspects are provided.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: December 28, 2021
    Assignee: QUALCOMM incorporated
    Inventors: Idan Michael Horn, Yehonatan Dallal
  • Patent number: 11209538
    Abstract: A millimeter-wave three-dimensional holographic imaging method and system. The method comprises: transmitting a continuous frequency wave to a measured human body, and receiving an echo signal reflected back; performing Fourier transform, phase compensation, inverse Fourier transform, and “non-uniform sampling to uniform sampling” interpolation; and projecting three-dimensional echo data to obtain two-dimensional reconstruction data, and generating a two-dimensional reconstructed image.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: December 28, 2021
    Assignee: SHENZHEN INSTITUTE OF TERAHERTZ AND INNOVATION
    Inventors: Shukai Zhao, Lingxia Guo, Chunchao Qi, Xiongwei Huang, Hanjiang Chen
  • Patent number: 11201388
    Abstract: A base station antenna (BSA) system includes a radio-frequency (RF) generator having a plurality of power-amplifying circuits therein, and an antenna, which includes a plurality of columns of radiating elements. These radiating elements are electrically coupled by RF signal routing to a corresponding plurality of ports of the antenna that receive a corresponding plurality of RF input signals. These RF input signals have respective amplitudes and phases that support the concurrent generation of three spaced-apart RF beams by the antenna and are derived from respective RF signals generated by the plurality of power-amplifying circuits. The RF input signals including: (i) a first RF input signal defined by at least two linearly superposed RF signals of equivalent frequency having unequal combinations of amplitude and phase weighting, and (ii) a second RF input signal defined by at least two linearly superposed RF signals of equivalent frequency having unequal combinations of amplitude and phase weighting.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: December 14, 2021
    Assignee: CommScope Technologies LLC
    Inventors: Martin L. Zimmerman, Björn Lindmark
  • Patent number: 11190953
    Abstract: The disclosure relates to technology beam steering in which one or more antennas are configured to form a beam directed to a first beam direction based on a configuration corresponding to an environment. A change in direction of the beam is identified in response to a change in orientation of user equipment, the change in orientation determined via one or more sensors in the user equipment, and a second beam direction is calculated based on a the first beam direction and the change in orientation of the user equipment. The one or more antennas are then configured by steering the beam to the second beam direction to compensate for the change in orientation of the user equipment.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: November 30, 2021
    Assignee: Futurewei Technologies, Inc.
    Inventors: Xiaoyin He, Ping Shi, Ricky Lap Kei Cheung
  • Patent number: 11178560
    Abstract: A base station that includes: a memory; and a processor that is connected to the memory and that is configured to: select one or more terminals to communicate with from plural terminals with which communication is possible using metric values calculated using an error correction offset value corresponding to a number of terminals being selected; and decide on at least one of a modulation scheme or a coding rate for each terminal selected.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: November 16, 2021
    Assignee: FUJITSU LIMITED
    Inventor: Takaharu Kobayashi
  • Patent number: 11171427
    Abstract: An apparatus includes a package and a beam former circuit. The package may be configured to be mounted on an antenna array at a center of four antenna elements. Each antenna element may include a dual-pole antenna having a vertical feed and a horizontal feed. The beam former circuit may be (i) disposed in the package, (ii) have a plurality of pairs of ports, (iii) configured to generate a plurality of radio-frequency signals in the ports while in a transmit mode and (iv) configured to receive the radio-frequency signals at the ports while in a receive mode. Each pair of the ports is configured to be directly connected to a respective one of the antenna elements. All of the ports may be spatially routed into alignment with the vertical feeds and the horizontal feeds in a single conductive plane of the antenna array.
    Type: Grant
    Filed: January 20, 2020
    Date of Patent: November 9, 2021
    Assignee: Integrated Device Technology, Inc.
    Inventors: Samet Zihir, Tumay Kanar
  • Patent number: 11165165
    Abstract: An antenna system, including an antenna element, a feeding network, and a radio frequency module, where the radio frequency module includes m transmitters and n receivers, the m transmitters and the n receivers are separately connected to the feeding network, and a set of then frequency bands is a subset of a set of the m frequency bands; and the feeding network is further connected to the antenna element, feeds transmit signals generated by the m transmitters to the antenna element, and/or feeds receive signals of the antenna element to the n receivers, where m and n are positive integers, and n is less than m.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: November 2, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Wei Chen, Xiaojun Zheng, Bin Xiong, Tao Jin, Shuai Chen
  • Patent number: 11158939
    Abstract: System and method for determining a position of an antenna array for optimal wireless communication. The system includes a spatially adaptive and beam-steering antenna array configured to control a wireless communications path between a first element and a second element based on a determination of wireless channel gain.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: October 26, 2021
    Assignee: University of South Florida
    Inventors: Mustafa Harun Yilmaz, Ertugrul Guvenkaya, Gokhan Mumcu, Huseyin Arslan
  • Patent number: 11159995
    Abstract: In various aspects, devices and methods for performing a handover in a MIMO system are described herein. According to at least one aspect, a wireless communication device is described to include one or more receivers that measures beams of a neighbor cell in response to a command of a MIMO communication system. In some aspects, the wireless communication device further includes one or more transmitters that reports information of the beams based on the measured beams to the massive MIMO communication system. The information is, in at least one aspect, incorporated in a Beam Specific-Neighbor Cell Relation (BS-NCR).
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: October 26, 2021
    Assignee: Intel Corporation
    Inventors: Min Huang, Yuan Zhu, Xu Zhang
  • Patent number: 11139590
    Abstract: An apparatus includes an antenna assembly including an antenna configured to receive a signal and generate, at a plurality of feed points of the antenna, a plurality of corresponding polarized signals having respective polarization directions different from each other, using the received signal; and a switching circuit configured to periodically switch between the plurality of feed points to select a corresponding one of the polarized signals among the plurality of polarized signals at a point of time based on a switching signal.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: October 5, 2021
    Assignee: U-BLOX AG
    Inventors: Thomas Kaufmann, Roderick Bryant
  • Patent number: 11082098
    Abstract: Methods and apparatus for providing an adaptive beamforming antenna for OFDM-based communication systems. In one embodiment, a method includes forming a matrix (A) of cyclic prefix values and a matrix (B) of tail values from an orthogonal frequency division multiplexed (OFDM) symbol, and forming a summation matrix (S) and a difference matrix (D) from the matrix A and the matrix B. The method also includes multiplying a beamformer preset matrix (W) with the matrix S and the matrix D to determine a matrix (P) and a matrix (Q), and determining a beam identifier from the P and Q matrices.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: August 3, 2021
    Assignee: MARVELL ASIA PTE, LTD.
    Inventor: Hyun Soo Cheon
  • Patent number: 11082732
    Abstract: A method of detecting CPD in an HFC network is disclosed, where the network includes a return receiver, a cable plant, and a node. The node includes an optical receiver, optical transmitter, a diplexer having forward and return legs, a forward path defined between optical receiver and forward leg, and a return path defined between the optical transmitter and return leg. The optical receiver provides a forward signal to the cable plant and a portion of the forward signal leaks through the return leg and travels to the return receiver. The cable plant contains a CPD source which generates a CPD signal from the forward signal. The CPD signal travels to the return receiver.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: August 3, 2021
    Assignee: Arcom Digital Patent, LLC
    Inventor: Victor M. Zinevich
  • Patent number: 11081791
    Abstract: The present invention is provided with: a plurality of antenna units each including a plurality of antenna elements and a partial synthesizer that synthesizes first output signals of the respective antenna elements and outputs a second output signal; a partial power detection means that measures signal intensities of the respective second output signals; a position determination unit that determines the position of a communication device serving as a communication target based on the measured signal intensities of the respective second output signals; a summing synthesizer that synthesizes the second output signals of the plurality of antenna units and outputs a third output signal; and a phase control unit that controls phases of the respective antenna elements such that a main lobe, which is a beam having a maximum signal intensity for the third output signal, is directed to the position of the communication device determined by the position determination unit.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: August 3, 2021
    Assignee: NEC CORPORATION
    Inventor: Naoki Oshima
  • Patent number: 11025288
    Abstract: The present disclosure relates to a transceiver arrangement (1) comprising a transceiver device (2) having at least two transceiver ports (8b, 9b, 10b, 11 b), a beamforming network (5), and at least two antenna ports (12a, 12b, 12c, 12d). The transceiver device (2) comprises at least two low-noise amplifier (LNA) arrangements (3a, 3b, 3c, 3d), where each LNA arrangement (3a, 3b, 3c, 3d) is connected to a respective transceiver port (8b, 9b, 10b, 11 b). The beamforming network (5) is arranged between the antenna ports (12a, 12b, 12c, 12d) and the transceiver ports (8b, 9b, 10b, 11 b), whereby a radio frequency (RF) signal received on an antenna port (12a, 12b, 12c, 12d) traverses the beamforming network (5) prior to being received on the transceiver ports (8b, 9b, 10b, 11 b).
    Type: Grant
    Filed: January 16, 2017
    Date of Patent: June 1, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventor: Kristoffer Andersson
  • Patent number: 11018744
    Abstract: Embodiments provide an innovative solution for finding the beamforming vectors which are based on classical BD. Particularly, embodiments exploit the principle of coherence interval, which suggests that the amplitude and phase of the channel is relatively constant over a small interval on a given t-f resource and thus, there is no need to re-compute the beamforming weights again. Instead, the previously computed weights (on the small interval of the given t-f resource) can be updated. To do this less-computationally-intense update operation, embodiments further exploit a principle from perturbation theory; namely, that when there is a minor change in the entries of a matrix, the decomposition of the matrix and the rank does not change heavily. In embodiments, the need to re-compute the BF weights can therefore be avoided.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: May 25, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventor: Darshan Arvind Patil
  • Patent number: 11005544
    Abstract: A communication device is described comprising a first antenna, a second antenna and a third antenna; a first transceiver configured to communicate using at least the first antenna; a second transceiver configured to communicate using at least the second antenna; and a controller configured to determine whether the third antenna is to be used by the first transceiver or the second transceiver based on a selection criterion and configured to control the first transceiver to communicate using the first antenna and the third antenna if the controller has determined that the third antenna is to be used by the first transceiver and to control the second transceiver to communicate using the second antenna and the third antenna if the controller has determined that the third antenna is to be used by the second transceiver.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: May 11, 2021
    Assignee: Apple Inc.
    Inventors: Thorsten Clevorn, Pablo Herrero, Uri Perlmutter, Ronen Kronfeld
  • Patent number: 10993232
    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long-Term Evolution (LTE). According to various embodiments of the present disclosure, a first apparatus in a wireless communication system that includes at least one processor and at least one transceiver operatively coupled with the at least one processor. The at least one processor is configured to obtain a channel matrix based on a signal received from a second apparatus, obtain an integer matrix for integer forcing (IF) based on the channel matrix, and generate channel information based on the integer matrix. The at least one transceiver is configured to transmit the generated channel information to the second apparatus.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: April 27, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seok-Ki Ahn, Sungho Chae
  • Patent number: 10993286
    Abstract: A wireless base station for communicating with a wireless terminal includes: a wireless apparatus configured to perform a first part of signal processing, the first part of signal processing including wireless signal processing among signal processing of the wireless base station; a wireless control apparatus configured to perform a second part of signal processing, the second part of signal processing being different from the first part of signal processing, the signal processing of wireless terminal user data split between the wireless apparatus and the wireless control apparatus of the wireless base station, the wireless apparatus and the wireless control apparatus of the base station connected via a transmission path, and the second part of signal processing of the wireless terminal user data in a unit of packet data convergence protocol packet data unit (PDCP PDU).
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: April 27, 2021
    Assignee: FUJITSU LIMITED
    Inventors: Takayoshi Ode, Yoshiaki Ohta, Shinichiro Aikawa, Yoshihiro Kawasaki
  • Patent number: 10966212
    Abstract: The present disclosure presents a method for a first receiver in a first communication link, the first communication link sharing a communication channel with a second communication link in a wireless network, the first communication link corresponding to a first set of beam directions, the second communication link corresponding to a second set of beam directions, and the method comprises determining whether a communication quality satisfies a predefined criterion; and selecting a first beam direction from the first set of beam directions in response to determining the communication quality satisfying the predefined criterion. The present disclosure also presents a further method for a second transmitter and the further method comprising receiving a beam direction selection signaling and selecting a second beam direction from the second set of beam directions in the second communication link. The first receiver and the second transmitter in respective communication links are also disclosed.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: March 30, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Gen Li, Junaid Ansari
  • Patent number: 10965023
    Abstract: A beamforming system includes a plurality of channelizers and a channel switching module in signal communication with the channelizers. Each channelizer is configured to receive a respective input radio frequency signal and to generate a plurality of respective channels in response to downsampling the respective input radio frequency signal. The channel switching module includes a channel combining circuit configured to selectively combine a common channel generated by each channelizer to form at least one steered analog beam.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: March 30, 2021
    Assignee: RAYTHEON COMPANY
    Inventor: Harry B. Marr
  • Patent number: 10931020
    Abstract: A waveguide structure for a compact and scalable dual-polarized antenna array. In one example, a waveguide device comprises septum polarizers dividing common waveguides into first waveguides associated with a first polarization and second waveguides associated with a second polarization. The sets of septum polarizers may be inverted relative to each other to form first groups of four adjacent first waveguides for each type of waveguide. The waveguide device may also include a waveguide feed network including a first waveguide feed stage including waveguide combiner/dividers coupled between the four adjacent waveguides intermediate waveguides. The waveguide device may further include a second waveguide feed stage coupled with the first intermediate waveguides and the second intermediate waveguides, wherein the second waveguide feed stage extends in a direction perpendicular to the first waveguide feed stage.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: February 23, 2021
    Assignee: Viasat, Inc.
    Inventors: Frederic Bongard, Stefano Vaccaro
  • Patent number: RE49169
    Abstract: A PDMA terminal (1000) establishes communication by forming a plurality of spatial paths to another single radio apparatus. A plurality of antennas constituting an array antenna are divided into a plurality of subarrays corresponding to the plurality of spatial paths respectively. An adaptive array processing unit (USP) can perform an adaptive array processing for each of the plurality of subarrays. A memory (MMU) stores in advance information on the number of antennas associated with the number of spatial paths that can be formed by the array antenna. A control unit (CNP) controls a processing to transmit possible multiplicity information to another radio apparatus at a prescribed timing.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: August 9, 2022
    Assignee: Hera Wireless S.A.
    Inventor: Yoshiharu Doi
  • Patent number: RE49182
    Abstract: A PDMA terminal establishes communication by forming a plurality of spatial paths to another single radio apparatus. A plurality of antennas constituting an array antenna are divided into a plurality of subarrays corresponding to the plurality of spatial paths respectively. An adaptive array processing unit can perform an adaptive array processing for each of the plurality of subarrays. A memory stores in advance information on the number of antennas associated with the number of spatial paths that can be formed by the array antenna. A control unit controls a processing to transmit possible multiplicity information to another radio apparatus at a prescribed timing.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: August 23, 2022
    Assignee: Hera Wireless S.A.
    Inventor: Yoshiharu Doi