Including Directive Communication System Patents (Class 342/367)
  • Patent number: 10367563
    Abstract: A base station device includes a frame generator circuitry that generates a first training frame used for receive beam training among frames used for beamforming training, a beam controller circuitry that sets a beam used to transmit the first training frame to an omnidirectional mode, a transmitter circuitry that transmits the first training frame at the lowest MCS rate of IEEE 802.11, a receiver circuitry that receives first and second response frames from a wireless terminal device that has received the first training frame after a determined period since transmission of the first training frame, and a frame determiner circuitry that determines whether the first response frame is a response to the receive beam training. In a case where the first response frame is a response to the receive beam training, the beam controller circuitry sets a beam received by the receiver circuitry to a directional beam, and the receiver circuitry receives the second response frame with a directional beam.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: July 30, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Masataka Irie, Naganori Shirakata, Hiroyuki Motozuka, Hiroshi Takahashi
  • Patent number: 10359497
    Abstract: A device, method, and computer-readable medium are provided for determining an optimal orientation for a directional antenna in a wireless communications system. Instructions are provided to position a directional antenna in each of a plurality of potential orientations. At each of the potential orientations, a serving node signal power level is ascertained, and an amount for reducing the transmit power of an uplink signal is determined for mitigating interference to non-serving nodes. An optimal orientation is determined based on the ascertained serving node signal power levels and the determined power reduction amounts for reducing uplink signal interference. In essence, the optimal orientation is determined based on received signal characteristics ascertained at each potential orientation.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: July 23, 2019
    Assignee: Sprint Communications Company L.P.
    Inventor: Khaled Azem
  • Patent number: 10348393
    Abstract: An antenna control algorithm is disclosed. Using this algorithm, the repeater will select an optimum antenna configuration at start-up. Once the configuration is selected, the system will keep this configuration until the performance metrics for this configuration drops below a specified level. At this point, the system will scan all antenna configurations to determine a new optimum configuration. In an alternative implementation, the repeater will select an optimum antenna configuration at start-up. Once the configuration is selected, the system will keep this configuration until the performance metrics for this configuration drops below a specified level. At this point, the system will start scanning antenna configurations to find a new configuration that yields a performance better than the required minimum performance level. This configuration would typically be faster than an optimum configuration as not all possible options need to be tested.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: July 9, 2019
    Assignee: NEXTIVITY, INC.
    Inventor: Michiel Petrus Lotter
  • Patent number: 10277324
    Abstract: High-performance ultra-wideband Phased Array Sensors (PAS) are disclosed, which have unique capabilities, enabled through photonic integrated circuits and novel optical architectures. Unique capabilities for a Receive PAS are provided by wafer scale photonic integration including heterogeneous integration of III-V materials and ultra-low-loss silicon nitride waveguides, combining key component technologies into complex PIC devices. Novel aspects include optical multiplexing combining wavelength division multiplexing and/or a novel extension to array photodetectors providing the capability to combine many RF photonic signals with very low loss. The architecture also includes optical down-conversion, as well as digital signal processing to improve the linearity of the system. Simultaneous multi-channel beamforming is achieved through optical power splitting of optical signals to create multiple exact replicas of the signals that are then processed independently.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: April 30, 2019
    Assignee: Morton Photonics
    Inventors: Paul A. Morton, Jacob Khurgin
  • Patent number: 10270509
    Abstract: The present invention provides a training beam transmission method, an apparatus, and a system. The training beam sending method includes: determining, by a transmit end, a training beam set to be sent to a receive end; sending, by the transmit end to the receive end, indication information indicating a combination vector of the training beam set; and sequentially sending, by the transmit end, training beams in the training beam set to the receive end. According to the training beam transmission method, the apparatus, and the system that are provided in the present invention, overheads required for sending a training beam can be reduced.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: April 23, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Kunpeng Liu, Huang Huang
  • Patent number: 10263834
    Abstract: A communication apparatus sets a first antenna direction to be used in a first time slot among a plurality of time slots, and a second antenna direction to be used in a second time slot among the plurality of time slots, transmits first data in the first time slot by using a first communication path using the first antenna direction, retransmits the first data in the second time slot by using a second communication path using the second antenna direction if transmission of the first data has failed, and transmits second data different in type from the first data in the second time slot by using the second communication path using the second antenna direction if transmission of the first data has succeeded.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: April 16, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Hirohiko Inohiza
  • Patent number: 10261166
    Abstract: A vessel location validation method and apparatus are provided. The vessel location validation method includes receiving a wireless signal from a vessel, acquiring location information of the vessel from the received wireless signal, and determining whether the acquired location information is valid based on the acquired location information and a signal strength of the received wireless signal.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: April 16, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Gae Il An, Hyeok Chan Kwon, Kwang Il Lee, Sok Joon Lee, Do Young Chung, Byung Ho Chung
  • Patent number: 10236958
    Abstract: The present disclosure provides a method for transmitting a signal to multiple User Equipments (UEs) utilizing reciprocity of a wireless channel. In this method, a vector channel from the base station to each UE can be converted into an equivalent Single Input Single Output (SISO) channel having a strong Light-of-Sight (LOS) component using channel feedback. In this way, a reliable signal transmission to multiple UEs can be achieved with little channel training overhead. The present disclosure has prominent advantages such as simplicity in implementation, low processing complexity and very low channel training overhead and is particularly applicable in low-speed transmission of broadcast signaling in a massive MIMO system and scenarios where the base station is to page inactive UEs.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: March 19, 2019
    Assignee: University of Science and Technology of China
    Inventors: Wenyi Zhang, Cong Shen, Ning Liang
  • Patent number: 10212612
    Abstract: A distributed antenna system includes a plurality of first antenna groups and a plurality of second antenna groups. The first antenna groups include a plurality of first antennas which forms beams in a first direction along a mobile station track and transmits identical signals at identical frequencies. The second antenna groups include a plurality of second antennas which forms beams in a second direction and transmits identical signals at identical frequencies. The first antennas and the second antennas are installed to face each other across the mobile station track. Each of the first antenna groups uses a frequency different from a frequency used in another first antenna group adjacent thereto, each of the second antenna groups uses a frequency different from a frequency used in another second antenna group adjacent thereto, and two frequencies are used by the first antenna groups and the second antenna groups in total.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: February 19, 2019
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kaoru Tsukamoto, Naohiro Shinoda, Hiroshi Nishimoto
  • Patent number: 10193733
    Abstract: Communication signals using a first and a second frequency band in a wireless network is described herein. The first frequency band may be associated with a first beamwidth while the second frequency band may be associated with a second beamwidth. An apparatus may include receiver circuitry arranged to receive first signals in a first frequency band associated with a first beamwidth and second signals in a second frequency band associated with a second beamwidth, the first signals comprising a frame synchronization parameter and the second signals comprising frame alignment signals. The apparatus may further include processor circuitry coupled to the receiver circuitry, the processor circuitry arranged to activate or deactivate the receiver circuitry to receive the frame alignment signals based on the frame synchronization parameter. Other embodiments may be described and/or claimed.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: January 29, 2019
    Assignee: Intel Corporation
    Inventors: Alexander Maltsev, Vadim Sergeyev, Alexei Davydov, Ali Sadri, Roman Maslennikov, Alexey Khorvaev
  • Patent number: 10186771
    Abstract: A photonic integrated circuit. The photonic integrated circuit includes: a plurality of antenna elements, an element of the plurality of antenna elements having an electrical port and including: a first laser configured to produce laser light of a first wavelength; and a first radiative patch conditionally connected to the electrical port and connected, by an optical connection, to the laser, the first radiative patch including, as a major component, a semiconductor material configured to be conductive when illuminated by light having the first wavelength, and to be nonconductive when not illuminated, the first radiative patch being configured, when conductive, to convert an electric signal received at the electrical port to radiated electromagnetic waves, or to convert received electromagnetic waves to an electrical signal at the electrical port.
    Type: Grant
    Filed: October 10, 2016
    Date of Patent: January 22, 2019
    Assignee: RAYTHEON COMPANY
    Inventors: James M. Bowden, Timothy R. Holzheimer
  • Patent number: 10172135
    Abstract: A wireless transmit/receive unit (WTRU) (e.g., a millimeter WTRU (mWTRU)) may receive a first control channel using a first antenna pattern. The WTRU may receive a second control channel using a second antenna pattern. The WTRU may demodulate and decode the first control channel. The WTRU may demodulate and decode the second control channel. The WTRU may determine, using at least one of: the decoded first control channel or the second control channel, beam scheduling information associated with the WTRU and whether the WTRU is scheduled for an mmW segment. The WTRU may form a receive beam using the determined beam scheduling information. The WTRU receive the second control channel using the receive beam. The WTRU determine, by demodulating and decoding the second control channel, dynamic per-TTI scheduling information related to a data channel associated with the second control channel.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: January 1, 2019
    Assignee: IDAC Holdings, Inc.
    Inventors: Tao Deng, Yugeswar Deenoo, Philip J. Pietraski, Ravikumar V. Pragada
  • Patent number: 10162053
    Abstract: In accordance with an example implementation of this disclosure, a multifunction radar transceiver comprises a transmitter and a receiver. The transmitter is operable to modulate data onto a first radar burst, beamform the first radar burst, and transmit the first radar burst via a plurality of antenna elements. The receiver is operable to receive a reflection of the first radar burst, perform beamforming of the reflection of the first radar burst, demodulate the first radar burst to recover the data modulated on the first radar burst, and determine characteristics of an object off of which the first radar burst reflected based on characteristics of the reflection of the first radar burst.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: December 25, 2018
    Assignee: Maxlinear, Inc.
    Inventor: Curtis Ling
  • Patent number: 10164319
    Abstract: An approach for determining remote terminal antenna alignment in a satellite communications system is provided. A point in time for an expected conjunction of an a remote terminal antenna, a satellite in communication with the remote terminal and the Sun is determined based on predetermined positional data. An interference level imposed by the Sun on communication signals between the antenna and the satellite is measured at a number of respective points in time. A one of the points in time is determined when the interference is at a peak level. Then information regarding alignment of the antenna with respect to the satellite is determined, wherein the determination of the antenna alignment information is based on a comparison between the one point in time of the peak interference level and the expected point in time of the conjunction of the antenna, the satellite and the Sun.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: December 25, 2018
    Assignee: DISH Technologies L.L.C.
    Inventors: Samuel Whitley, Silas Cole
  • Patent number: 10164700
    Abstract: A fault detection method and a fault detection device for external antennas, where the method comprises generating a first detection signal and transmitting the first detection signal using a main antenna, detecting whether a diversity antenna receives the first detection signal, acquiring a signal strength difference between the signals received by the main antenna and the diversity antenna, respectively, determining that the diversity antenna is faulty when the signal strength difference is not less than a first threshold, determining that the main antenna is faulty when the signal strength difference is not larger than a second threshold, and determining that the main antenna and the diversity antenna are faulty when the signal strength difference is larger than the second threshold and less than the first threshold.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: December 25, 2018
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Pinhui Chen, Kheng Hong Ang
  • Patent number: 10154498
    Abstract: A method is disclosed for associating network devices to a network. The method can include receiving a beacon from a source by an antenna array, allocating resources to beamform and beamforming after receiving at least a portion of the beacon. The beamforming can be accomplished prior to completion of an association request and prior to receipt of an acceptance signal in response to the association request. Accordingly directional transmissions can be utilized transmit at least part of an association request and to transmit an acceptance signal corresponding to the association request.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: December 11, 2018
    Assignee: Intel Corporation
    Inventors: Carlos Cordeiro, Alex Kesselman, Solomon Trainin
  • Patent number: 10148329
    Abstract: A method for adaptive user equipment (UE) grouping and beamforming includes the assignment each of a plurality of user equipment (UE) devices into a respective UE group of a plurality of UE groups. Each UE group has at least one UE device. A UE device is reassigned from the respective UE group to which it was previously assigned to an updated UE group. An updated respective beamforming vector is generated for the updated UE group until the updated respective beamforming vector for each UE group produces a largest average UE rate for the updated UE group.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: December 4, 2018
    Assignee: Futurewei Technologies, Inc.
    Inventors: Guosen Yue, Xiao-Feng Qi
  • Patent number: 10136336
    Abstract: There is provided a base station (BS) (1000) and a method at the BS that is capable of enhancing network capacity with low transmission power in a radio network. The method comprises serving a cell with one or more first carriers. The method further comprises serving a hot-spot within the cell with one or more beam-formed second carriers, wherein the first and second carriers share a total transmission power for serving the cell. Beam-forming based hot-spot carriers can efficiently save transmission power and contribute to the total power utilization efficiency. The base station (1000) thus can meet the capacity enhancement requirement with low transmission power.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: November 20, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Huaisong Zhu, Yang Hu, Xinghua Song
  • Patent number: 10135515
    Abstract: A particular communications protocol is used for antenna training to accomplish directional communications in a wireless communications network. In some embodiments, pertinent information for various requests, responses, and status reports, is included in information elements.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: November 20, 2018
    Assignee: Intel Corporation
    Inventor: Carlos Cordeiro
  • Patent number: 10128952
    Abstract: High-performance ultra-wideband Receive Phased Array Sensors (Rx-PAS) are disclosed, which have unique capabilities, enabled through photonic integrated circuits and novel optical architectures. Unique capabilities for a Rx-PAS are provided by wafer scale photonic integration including heterogeneous integration of III-V materials and ultra-low-loss silicon nitride waveguides. Novel aspects include optical multiplexing combining wavelength division multiplexing and/or a novel extension to array photodetectors providing the capability to combine many RF photonic signals with very low loss. The architecture includes tunable optical down-conversion, moving a chosen frequency band to baseband with high dynamic range; creating also a single frequency hand channelizer, which is also expanded to create a multiple tunable frequency band channelizer.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: November 13, 2018
    Assignee: Morton Photonics
    Inventors: Paul A. Morton, Jacob Khurgin
  • Patent number: 10128922
    Abstract: Embodiments are provided for cross-polarized antennas design with different down tilt angles that support versatile functionality, such as for MIMO or beamforming. An embodiment antenna circuit comprises a baseband signal processor, a pair of RF transmitters coupled to the baseband signal processor, a pair of PAs coupled to the RF transmitters, a 90°/180° hybrid coupler coupled to the RF transmitters, a pair of duplexers and two antennas coupled to the PAs. The two antennas are down tilted at different down tilt angles. A pair of signals is generated using the baseband signal processor, transmitted by the RF transmitters, and amplified using the PAs. Additionally, a 90° or 180° phase difference is introduced into the signals using the 90°/180° hybrid coupler. After the amplifying and introducing the phase difference, the signals are polarized at two different polarizations and down tilted at different down tilt angles using the two antennas.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: November 13, 2018
    Assignee: FUTUREWEI TECHNOLOGIES, INC.
    Inventors: Zhengxiang Ma, Leonard Piazzi, Renjian Zhao, Jian Wang
  • Patent number: 10122555
    Abstract: Cross-phase interference occurs in dual polarized or orthogonal polarized microwave links when independent local oscillators (LOs) are utilized in each outdoor unit (ODU) transceiver operating on the same frequency channel. If the cross-phase noise is not compensated the performance of the microwave link will be degraded. In order to reduce cross-phase noise two or more pilot symbols are utilized to enable cross-phase noise estimates to be determined at the receiver of the microwave link. The pilot symbols enable a cross-phase noise compensation factor to be determined for the signal from the one or more cross-phase noise estimates. The received signal can then be compensated using the estimated cross-phase noise compensation factor.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: November 6, 2018
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Hoda Shahmohammadian, Ahikam Aharony
  • Patent number: 10098085
    Abstract: A location of a client device may be detected. From a first location, a first angle from a first reference line to the client device may be determined using beamforming. Next, from a second location, a second angle from a second reference line to the client device may be determined using beamforming. The first reference line and the second reference line may be parallel. Then, an intersection point of a first directional line and a second directional line may be determined. The first directional line may be defined by the first location and the first angle. The second directional line may be defined by the second location and the second angle. A client device location corresponding to the intersection point may then be obtained.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: October 9, 2018
    Assignee: Cisco Technology, Inc.
    Inventor: Michael Overcash
  • Patent number: 10098018
    Abstract: Antenna apparatus and a method of operating the antenna apparatus are provided. The antenna apparatus comprises a directional antenna comprising antenna array components, RF chains connected to the antenna array components, and a transceiver connected to the RF chains. Each RF chain comprises in sequence: a switching stage having switching circuitry selectively to connect an antenna array component, a phase shifting stage having phase shifting circuitry, and a summation stage having summation circuitry, wherein at least two of the RF chains share phase shifting circuitry and at least two of the RF chains share summation circuitry. The at least partial sharing of the RF chains, an in particular of the phase shifting circuitry provides a compact and cheap antenna apparatus, which is nonetheless capable of degree of configurability in direction and beam pattern to enable it to operate in a busy and changing environment.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: October 9, 2018
    Assignee: Airspan Networks Inc.
    Inventors: Martin Lysejko, Stuart Parrott
  • Patent number: 10038980
    Abstract: A method comprising: storing, by a computer, a list of mobile devices; creating, by the computer, a plurality of groups of the mobile devices, each group including at least one mobile device, based on locations of the mobile devices; providing, by the computer, at least one mobile device of the plurality of groups with information of a target location; and handling, by the computer, information for a mutual interaction between at least two groups of the plurality of groups.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: July 31, 2018
    Assignee: International Business Machines Corporation
    Inventors: Kenji Hamahata, Koichi Nishitani, Tadayuki Yoshida
  • Patent number: 10033513
    Abstract: A network-wide interference cancellation scheme estimates channel impulse responses related to Self Interference and the Mutual Interference, then reduces both the Self Interference and the Mutual Interference in the receiver of an Full Duplex device. Full Duplex gains may be capitalized upon and translated into system gain. The scheme is based on an extended Multiple-Input-Multiple-Output (MIMO) treatment of the whole Full Duplex network. The network-wide interference cancellation may be seen to be feasible when a unique pilot signal design and training structure are in place network-wide.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: July 24, 2018
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Huan Wu, Eddy Shi-Ning Hum, Philippe A. Guillemette
  • Patent number: 10020921
    Abstract: The disclosure is directed to a method of transmitting a reference signal and related electronic devices using the same. In one of the exemplary embodiments, the method would include not limited to transmitting a reference signal by using a directional antenna emitting a first radiation pattern of one or more beams covering 360 N degrees per one of N time slots during a first phase of a full sweeping period, wherein N?2 and transmitting the reference signal, in response to transmitting the reference signal by using the directional antenna which has the first radiation pattern, by using the directional antenna emitting a second radiation pattern of multiple beams having different angles simultaneously covering a total of 360 M degrees of angles per one of M time slots during a second phase of the full sweeping period, wherein N>M?1.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: July 10, 2018
    Assignees: National Taiwan University, MediaTek Inc.
    Inventors: Hung-Yu Wei, Chung-Wei Weng, Chia-Hao Yu
  • Patent number: 10009905
    Abstract: The present disclosure relates to techniques for reducing flash light effect in 3D MIMO. One aspect of the present invention relates to user equipment, comprising: a transmission and reception unit configured to receive an interference beam candidate list including directional beams transmitted from a camped base station and interference beam candidates transmitted from an adjacent base station; a measurement unit configured to measure reception quality of reference signals transmitted in the respective directional beams in the received interference beam candidate list; and an interference information generation unit configured to generate interference information based on the measured reception quality, wherein the transmission and reception unit indicates the generated interference information to the camped base station or the adjacent base station.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: June 26, 2018
    Assignee: NTT DOCOMO, INC.
    Inventors: Yuichi Kakishima, Satoshi Nagata, Yoshihisa Kishiyama
  • Patent number: 9936397
    Abstract: Beamforming for adapting wireless signaling beams in an adaptive and agile manner is contemplated. The beamforming may be characterized by adaptively constructing beam form parameters to provide wireless signaling in a manner that maximizes efficiency and bandwidth according to device positioning relative to a responding base station.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: April 3, 2018
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Luis Alberto Campos, Jennifer Andreoli-Fang, Thomas Williams
  • Patent number: 9930656
    Abstract: Technology described herein relates to systems, methods, and computer readable media to enable a millimeter wave capable small cell (MCSC) devices to receive a handover of a user equipment from a universal mobile telecommunications system terrestrial radio access node B (eNB). In particular, systems and methods are described for user equipment (UE) association with a MCSC operating as a booster for an eNB in a time division duplexing (TDD) system, including identification of and communication on preferred cell sector between the UE and the MCSC. Protocols for concurrently performing a beam search and time and frequency synchronization for downlink communication are also described. Several sub-frame designs to facilitate these protocols are also described.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: March 27, 2018
    Assignee: Intel IP Corporation
    Inventors: Huaning Niu, Qian Li, Yang Tang, Sameer Pawar, Christian Ibars Casas
  • Patent number: 9930554
    Abstract: The present disclosure relates to a method performed in a network node with two or more transmission states for dynamically managing outer loop link adaptation instances for a wireless device. The method includes monitoring one or more variables, where each variable is either associated with an outer loop link adaptation instance or with a transmission state; and adapting the number of outer loop link adaptation instances based on the monitored one or more variables. The disclosure also relates to corresponding devices.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: March 27, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Jinhua Liu, Svante Bergman, Shaohua Li, Zhan Zhang
  • Patent number: 9872294
    Abstract: A base station includes a determining unit, and a change unit. The determining unit determines, for each terminal, whether reception quality of an uplink signal from the terminal is equal to or smaller than a certain threshold. The change unit performs first processing or second processing when the reception quality is equal to or smaller than the certain threshold. The first processing is the processing of instructing a first terminal, a terminal of a transmission source of an uplink signal, to change the frequency of the uplink signal of the first terminal to the frequency of either an uplink or a downlink signal assigned to each terminal. The second processing is the processing of changing the frequency of a downlink signal identical to that of the uplink signal from the first terminal to the frequency of either an uplink or a downlink signal assigned to each terminal.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: January 16, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Hiroaki Arai, Tsuyoshi Hasegawa, Tokuro Kubo
  • Patent number: 9846235
    Abstract: There are provided methods and systems for producing a wave-beam having substantially constant lateral extent over a desired range of distances, and interrogation and response system and methods utilizing the same. The method for producing a wave-beam having substantially constant lateral extent includes generating a plurality of at least partially incoherent constituent wave-beams having different divergences and directing the plurality constituent wave-beams to propagate along substantially parallel propagation axes such that the constituent wave-beams at least partially overlap and superpose to form a combined wave-beam. The divergences and intensities of the constituent wave-beams are selected such that the combined wave-beam has a desired substantially constant extent over a desired range of distances along said propagation axes.
    Type: Grant
    Filed: August 8, 2013
    Date of Patent: December 19, 2017
    Assignee: Israel Aerospace Industries Ltd.
    Inventors: Abraham Aharoni, David Lou Alon, Aharon Yifrach
  • Patent number: 9847821
    Abstract: The present invention provides methods and apparatus for implementing spatial multiplexing in conjunction with the one or more multiple access protocols during the broadcast of information in a wireless network. One example includes transmitting a first and a second data signal to a remote unit from a respective first and a second spatially separate antenna of a base station so that the first and second data signals have a first spatial configuration, determining that the first and the second data signals are not spatially separated by the remote unit, reconfiguring the (spatial multiplexing logic 104) spatial configuration of the first and second data signals to a second spatial configuration, and transmitting a third and fourth data signal to the remote unit from a second different antenna configuration according to the second spatial configuration.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: December 19, 2017
    Assignee: INTEL CORPORATION
    Inventors: Robert W. Heath, Jr., Peroor K. Sebastian, Rahul Chopra, Arogyaswami J. Paulraj
  • Patent number: 9801019
    Abstract: A range between a first wireless device and a second wireless device is estimated using a first mechanism based on messages transmitted over a first communication channel. The first communication channel is associated with a first radio access technology capability of the wireless devices. One or more metrics indicative of an accuracy of the range estimates provided by the first mechanism are obtained. A second mechanism to estimate a range between the first wireless device and the second wireless device may be implemented in favor of the first mechanism when the metric fails to satisfy a criterion. The second mechanism is based on unicast messages transmitted over a second communication channel. The second communication channel is associated with a second radio access technology capability of the wireless devices and may be the same as, or different from, the first communication channel.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: October 24, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Venkatesan Nallampatti Ekambaram, Urs Niesen, Jubin Jose, Xinzhou Wu
  • Patent number: 9781233
    Abstract: An alignment system for point-to-point alignment of spaced apart first and second antennas may include a remote server configured to determine respective target azimuth and tilt data for each of the first and second spaced apart antennas based upon actual position data of the first and second spaced apart antennas. The alignment system may also include an end-point alignment kit that may include a technician tool, and an antenna alignment device to be temporarily mounted to a given antenna during alignment. The antenna alignment device may be configured to determine the actual position data and actual azimuth and tilt data for the given antenna. The technician tool may be configured to communicate the actual position data for the given antenna to the remote server, receive the target azimuth and tilt data from the remote server, and display the actual azimuth and tilt data for the given antenna.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: October 3, 2017
    Assignee: SUNSIGHT HOLDINGS, LLC
    Inventors: James A. Wattwood, Evan Beeton
  • Patent number: 9774366
    Abstract: A communication device for communicating with a plurality of terminals using a frequency hopping sequence, the communication device being configured to determine that one of the plurality of terminals is subject to interference on a frequency in the frequency hopping sequence and to, in response to that determination, schedule communication with that terminal to avoid that frequency.
    Type: Grant
    Filed: June 11, 2012
    Date of Patent: September 26, 2017
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: William Webb
  • Patent number: 9768890
    Abstract: System and methods to adapt a network of millimeter-wave communication nodes to a changing condition. The system detects a changing condition and concludes that the network needs to be adjusted. As a result, the system transitions, substantially instantaneously, between a current network topology to a new network topology, by instructing each of several millimeter-wave communication nodes to electronically steer the respective millimeter-wave beam away from current destination node and toward another destination node. The end result is that several of the beams change direction during a short period of time, thereby transitioning to the new network topology without impacting ongoing communication. In some embodiments, the transition between network topologies is done multiple times in a systematic fashion so as to generally find an optimal network topology and not as a response to a changing condition. In some embodiments, the transition between network topologies is a normal ongoing mode of operation.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: September 19, 2017
    Assignee: Siklu Communication Ltd.
    Inventor: Yigal Leiba
  • Patent number: 9712230
    Abstract: The present invention is directed to a system and related method for providing high bandwidth communication between nodes in an RF neighborhood. Each node may transmit via an omnidirectional antenna element while time differentially receiving via a directional antenna element. As each node receives signals from neighborhood nodes, it determines a neighborhood contingent as well as a desirability of the received signals and the direction from which the desirable signals originate. Based on this direction, each node focuses a directional antenna element on the node from which a signal is desired while eliminating interference from transmissions from undesired nodes. Based on the neighborhood contingent, the system adjusts the node's omnidirectional transmit rates to communicate via statistical priority multiple access protocols with the desirable neighborhood nodes. The system adjusts the node's statistical priority multiple access channel access to account for the eliminated interference.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: July 18, 2017
    Assignee: Rockwell Collins, Inc.
    Inventor: James A. Stevens
  • Patent number: 9680546
    Abstract: Some demonstrative embodiments include apparatuses, systems and/or methods of wireless communication beamforming. For example, an apparatus may include a wireless communication unit to process a beamforming frame communicated between a beamforming initiator station and a beamforming responder station subsequent to a Transmit (Tx) sector sweep by the beamforming initiator station, wherein transmission of the beamforming frame is from a first station of the beamforming initiator station or the beamforming responder station to a second station of the beamforming initiator station or the beamforming responder station, the beamforming frame comprises an indication of a selected Tx sector, based on the Tx sector sweep, to be used by the first station for transmitting a directional beamformed transmission to the second station.
    Type: Grant
    Filed: September 8, 2013
    Date of Patent: June 13, 2017
    Assignee: INTEL CORPORATION
    Inventor: Solomon B. Trainin
  • Patent number: 9673878
    Abstract: Systems and methods are provided for precoding a signal at a transmitter. A plurality of receiver devices is identified, and a first receiver device is selected from the plurality of receiver devices. The transmitter communicates with the first receiver device over a channel, and an estimate of the channel is determined. A precoding matrix is computed based on the estimate, such that when the transmitter transmits a signal that is precoded with the precoding matrix over the channel, interference from a second receiver device of the plurality of receiver devices over the channel is reduced.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: June 6, 2017
    Assignee: Marvell International Ltd.
    Inventors: Hongyuan Zhang, Yihong Qi
  • Patent number: 9651738
    Abstract: A distributed feeding circuit for antenna beamforming array comprises a plurality N of inputs and a plurality N of outputs, wherein the said circuit is adapted for receiving, on at least one input, an electrical signal at a microwave frequency, modulated on at least one optical carrier, the circuit comprising at least one assembly of at least two optical dividers, two delay lines of length zero or substantially equal to a fraction of the wavelength of the signal at its microwave frequency and two means for combining two optical signals, the assembly being arranged and the delay lines being configured so that the theoretical transfer function of the circuit is an orthogonal matrix.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: May 16, 2017
    Assignees: THALES, DAS PHOTONICS S.L
    Inventors: Gerard Caille, Michel Sotom, Miguel Angel Piqueras Ruiperez, Teresa Mengual Chulia
  • Patent number: 9635627
    Abstract: Various communication systems may benefit for techniques and devices for improved connection reliability and interference management. For example, communication systems of the long term evolution (LTE) of the third generation partnership project (3GPP) or LTE advanced (LTE-A) may benefit from systems and methods for improving connection reliability and managing interference created by beamforming. For example, a method may include preparing at least one interference-protected message to transmit. The method may also include transmitting the at least one interference-protected message preferentially on at least one physical resource block on which beamforming is not allowed.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: April 25, 2017
    Assignee: NOKIA SOLUTIONS AND NETWORKS OY
    Inventor: Arvind Krishnamoorthy
  • Patent number: 9549406
    Abstract: An automatically adjustable radiofrequency link system includes a radiofrequency transmitter configured to transmit a signal at a frequency of transmission within an extremely high frequency (EHF) band. The system further includes a receiving device configured to receive the transmitted signal and provide feedback to a processing circuit communicatively coupled to the transmitter and the receiving device, wherein the feedback is related to the received signal. The processing circuit is configured to determine required signal properties based on the feedback and determine signal loss properties including an effect of atmospheric absorption, as a function of frequency; determine a modification to the transmitted signal using the signal loss properties and the required signal properties; and adjust the frequency of transmission to obtain a desired transmission signal using the modification.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: January 17, 2017
    Assignee: Elwha LLC
    Inventors: Jeffrey A. Bowers, Alistair K. Chan, Russell J. Hannigan, Roderick A. Hyde, Jordin T. Kare, Nathan Kundtz, Nathan P. Myhrvold, John Brian Pendry, David R. Smith, Clarence T. Tegreene, David B. Tuckerman, Charles Whitmer, Lowell L. Wood, Jr.
  • Patent number: 9544171
    Abstract: An apparatus (UEA) may generate a zero-tail signal to be transmitted in an LTE/LTE-A cell, by introducing time domain samples with zero power or very low power in specific positions of a time symbol tail. The apparatus (UEA) may transmit the generated zero-tail signal to a base station (eNB), such that a first user terminal (UEA) is located in the cell farther away (e.g. on a cell edge) from the base station (eNB) than a second user terminal (UEB). Thus coexistence of signals sent by user terminals (UEA, UEB) located at different distances from the base station (eNB) within a same receiver window is enabled without inter-symbol interference. The generated zero-tail signal may also be transmitted from the first user terminal (UEA) or from the base station (eNB) in an outdoor system that is detectable by a neighboring indoor system.
    Type: Grant
    Filed: February 12, 2013
    Date of Patent: January 10, 2017
    Assignee: Nokia Solutions and Networks OY
    Inventors: Gilberto Berardinelli, Bernard Raaf, Fernando Tavares, Juergen Michel
  • Patent number: 9461804
    Abstract: A first apparatus 101 and a second apparatus 102 carry out wireless data communication using a wireless transmission path that uses a plurality of physical links in parallel. In each of the apparatuses, input/output ports 111 to 113 input and output data. A plurality of wireless signal processing means 141 to 143 respectively control different ones of the physical links. The wireless signal processing means 141 to 143 respectively measure reception signal levels of the physical links, and notify a counterpart apparatus about the reception signal levels. Link aggregation control means 130 determines a priority for each of the physical links based on the signal level for each of the physical links. The packet transfer processing means 141 to 143 select, out of the physical links structuring the wireless transmission path, the physical link having a usable band of a prescribed capacity and high priority as the data recipient.
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: October 4, 2016
    Assignee: NEC Corporation
    Inventor: Kohei Okazaki
  • Patent number: 9451536
    Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may be a UE. The UE transmits a beamformed broadcast request signal to a base station in a plurality of transmissions in transmit spatial directions of the UE, receives a beamformed broadcast response signal from the base station in a resource of a plurality of resources, and determines a preferred transmit spatial direction of the UE based on the resource in which the beamformed broadcast response signal is received. The apparatus may be a base station. The base station scans for a beamformed broadcast request signal from a UE, determines a preferred transmit spatial direction of transmit spatial directions of the UE, determines a resource of a plurality of resources for indicating the determined preferred transmit spatial direction, and transmits a beamformed broadcast response signal to the UE in the determined resource.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: September 20, 2016
    Assignee: QUALCOMM INCORPORATED
    Inventors: Jung Ho Ryu, Sundar Subramanian, Junyi Li, Ashwin Sampath
  • Patent number: 9444152
    Abstract: An Antenna Mode Steering (AMS) method in a signal receiving apparatus using at least one antenna is provided. The method includes measuring a received signal quality of a signal received through the at least one antenna for each of antenna modes available in the signal receiving apparatus, and selecting a specific antenna mode from among the antenna modes as an antenna mode to be used in the signal receiving apparatus based on the measured received signal quality.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: September 13, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Min Park, Min-Goo Kim, Tae-Yoon Kim, Chae-Man Lim, Jong-Han Lim
  • Patent number: 9438344
    Abstract: Novel tools and techniques providing for the robust wireless distribution of communications signals from a provider to multiple customer premises. Certain embodiments comprise one or more modular communications apparatuses which are located near to customer premises. The modular communications apparatuses features an enclosure which is, at least in part, transparent to radio frequencies. A modular communications apparatus also typically includes one or more communications radios or transmitter/receiver devices within the enclosure. The apparatus also includes at least one and possibly more than one antenna located within the enclosure along with wire or cable-based signal output apparatus.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: September 6, 2016
    Assignee: CenturyLink Intellectual Property LLC
    Inventor: Charles I. Cook
  • Patent number: 9413513
    Abstract: A first apparatus 101 and a second apparatus 102 carry out wireless data communication using a wireless transmission path that uses a plurality of physical links in parallel. In each of the apparatuses, input/output ports 111 to 113 input and output data. A plurality of wireless signal processing means 141 to 143 respectively control different ones of the physical links. The wireless signal processing means 141 to 143 respectively measure reception signal levels of the physical links, and notify a counterpart apparatus about the reception signal levels. Link aggregation control means 130 determines a priority for each of the physical links based on the signal level for each of the physical links. The packet transfer processing means 141 to 143 select, out of the physical links structuring the wireless transmission path, the physical link having a usable band of a prescribed capacity and high priority as the data recipient.
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: August 9, 2016
    Assignee: NEC Corporation
    Inventor: Kohei Okazaki