Directional Antenna Patents (Class 455/63.4)
  • Patent number: 10314056
    Abstract: A method performed by a user equipment (UE) is provided. The method includes selecting a first beam for a first frequency band and selecting a second beam for a second frequency band. The method further includes receiving scheduling information (SI) for scheduling at least one of an uplink (UL) transmission from the UE and a downlink (DL) transmission to the UE. The SI includes frequency information identifying a frequency band. The method further includes selecting a beam from a set of beams including the first and second beams. The selection is based on the identified frequency band.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: June 4, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Andreas Nilsson, Sven Petersson
  • Patent number: 10304343
    Abstract: Example methods, apparatus, systems, and articles of manufacture (e.g., physical storage media) to facilitate flight plan implementation, generation, and management are disclosed. An example method includes receiving flight plan information including a flight route and a listing of base stations, connecting to a first base station on the listing, determining a first transition point between the first base station and a second base station on the listing based on the flight route, determining whether the first transition point has been reached, maintaining the connection with the first base station when the first transition point has not been reached, transitioning the connection from the first base station to the second base station when the first transition point has been reached, and/or dropping signals received from base stations not on the listing.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: May 28, 2019
    Assignee: AT&T Mobility II LLC
    Inventors: Damir Mustafic, Haywood S. Peitzer, James A. Wolters, II, Matthew Walsh, Thomas Becker
  • Patent number: 10285015
    Abstract: A location estimation system for estimating a location of a wireless communication terminal, the location estimation system including first to M-th wireless communication devices and a control device, wherein i-th wireless communication device includes communication circuitry, which in operation, receives a signal transmitted from the wireless communication terminal using beams in Ni directions, and control circuitry, which in operation, calculates Ni reception qualities corresponding to the beams in the Ni directions, respectively, and wherein the control device includes control circuitry, which in operation, estimates i-th arrival direction of the signal received by the i-th wireless communication device by comparing the Ni reception qualities with the radiation angle characteristics of the beams in the Ni directions, and estimates the location of the wireless communication terminal based on the first to the M-th arrival directions estimated and locations of the first to the M-th wireless communication devi
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: May 7, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Naganori Shirakata, Hiroshi Takahashi, Tomoya Urushihara, Junichi Morita
  • Patent number: 10263817
    Abstract: An antenna system is provided. In one example implementation, the antenna system may include a modal antenna that is operable in a plurality of different modes, and each mode may be associated with a different radiation pattern. The antenna system may include a tuning circuit configured to operate the modal antenna in the plurality of different modes. A transmission line may couple a radio frequency circuit to the modal antenna. The radio frequency circuit may be configured to modulate a control signal onto an RF signal using amplitude-shift keying modulation to generate a transmit signal for communication over the transmission line to the tuning circuit. The tuning circuit may be configured to demodulate the control signal such that the radio frequency circuit can adjust a mode of the modal antenna via the control signal. In some embodiments, the amplitude-shift keying modulation may include on-off keying modulation.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: April 16, 2019
    Assignee: AVX Antenna, Inc.
    Inventors: Michael Roe, Claudio Anzil, Jatan Shah
  • Patent number: 10243627
    Abstract: A method of controlling a system for transmitting data. The method includes transmitting data using a plurality of transmit paths, receiving at the access node a transmit power and an available transmit power of a wireless device, monitoring at the access node the received transmit power and the received available transmit power over a period of time, determining at the access node the received transmit power meets a first criteria and the received available transmit power meets a second criteria, and reducing transmit paths from the access node in response to determining the received transmit power meets the first criteria and the received available transmit power meets the second criteria.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: March 26, 2019
    Assignee: Sprint Spectrum L.P.
    Inventors: Sreekar Marupaduga, Patrick Himmelberg, Clark Halferty
  • Patent number: 10206234
    Abstract: A device to device (D2D) communication control method, a D2D communication method, and apparatuses thereof are provided. A method comprises: in response to that at least one party in both parties of communication has a directional transmission capability, determining to establish a D2D communication link using directional transmission; and determining a power control strategy associated with the directional transmission of the D2D communication link. Possible directional D2D transmission can be considered according to directional transmission capability of at least one party in both parties of communication, and a power control strategy specific to the directional D2D transmission can be made, thereby having higher flexibility, and being conducive to suppressing interference more effectively.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: February 12, 2019
    Assignee: BEIJING ZHIGU RUI TUO TECH CO., LTD
    Inventor: Weicai Huang
  • Patent number: 10200148
    Abstract: An apparatus and related operating method of a mmWave WHMD, are provided. The apparatus utilizes beamforming information to determine direction information indicating a direction of a received signal from an external component that is connected to the apparatus via a VR data link. The apparatus selects and sets a current MCS that supports a data load of the VR data link. The apparatus, while maintaining the VR data link, determines a VR data link condition by a determination that a received signal is stronger or weaker than a predetermined signal strength level for the current MCS of the VR data link. When stronger, the processing circuitry is configured to signal a transceiver to widen a beam from a current beamwidth to a new wider beamwidth in a direction based on the direction information to maintain the current MCS and data load of the VR data link.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: February 5, 2019
    Assignee: Intel Corporation
    Inventors: Jie Gao, Yaniv Haim Frishman, Anand S. Konanur, Manish A. Hiranandani, Ulun Karacaoglu, Atsuo Kuwahara, Songnan Yang
  • Patent number: 10177824
    Abstract: A signal processing method and a related device are provided. The signal processing method includes: determining that there are N directions for received signals corresponding to a same signal source; configuring beam directions of an antenna as the N directions; estimating delays of the N received signals received by using the antenna, and separately performing, by using the estimated delays of the N received signals, delay compensation on the N received signals to obtain N received signals obtained after delay compensation, where the N received signals are in a one-to-one correspondence with the N directions, and N is an integer greater than 1; and performing combining processing on the N received signals obtained after delay compensation. The technical solutions in embodiments of the present invention help increase a signal reception gain in a multipath scenario.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: January 8, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Zihuan Chen, Kun Li, Hao Long
  • Patent number: 10136372
    Abstract: A method of selecting a relay user equipment (UE) performed by a remote UE in wireless communication system, and a UE using the method are provided. The method includes determining whether a measurement of a current relay UE is smaller than a threshold and selecting a candidate relay UE satisfying a specific condition as a relay UE when the measurement of the current relay UE is smaller than the threshold. Here, the candidate relay UE is selected as a relay UE only when a measurement of the candidate relay UE is greater than a minimum hysteresis value (minHyst) based on the threshold.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: November 20, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Sunghoon Jung, Jaewook Lee
  • Patent number: 10135118
    Abstract: An apparatus includes a first antenna and a second antenna, operatively coupled to a transceiver; at least one parasitic resonator; and parasitic selection logic, operatively coupled to the at least one parasitic resonator and to the transceiver. The parasitic selection logic operative is to determine a signal quality metric using a first signal quality metric measurement for the first antenna, and a second signal quality metric measurement for the second antenna; and switch the at least one parasitic resonator to a termination in response to the determined signal quality metric.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: November 20, 2018
    Assignee: Motorola Mobility LLC
    Inventors: Istvan Szini, Krishna Bellamkonda, Christopher Janonis
  • Patent number: 10063297
    Abstract: A system, method, and computer program product is provided to select at least one channel based on one or more channel characteristics and initiate a first transmission to a first multiple-input-multiple-output (MIMO)-capable portable wireless device, and further initiate a second transmission to a second multiple-input-multiple-output (MIMO)-capable portable wireless device, such that at least a portion of the first transmission occurs simultaneously with at least a portion of the second transmission and both occur via a first wireless protocol; and is further configured to initiate a third transmission to a third multiple-input-multiple-output (MIMO)-capable portable wireless device via a second wireless protocol including a 802.11n protocol, where the first wireless protocol includes another 802.11 protocol other than the 802.11n protocol.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: August 28, 2018
    Assignee: Woodbury Wireless, LLC
    Inventors: Roc Lastinger, John Spenik, Brian C. Woodbury
  • Patent number: 10015701
    Abstract: Disclosed is a multimode dual-path terminal, comprising an antenna, a first radio-frequency transceiving module which supports the receiving and transmitting of a radio-frequency signal of the first communication model, a second radio-frequency transceiving module which supports the receiving and transmitting of a radio-frequency signal of the second communication model, a first radio-frequency switch, a second radio-frequency switch, a third radio-frequency switch and a fourth radio-frequency switch, wherein the first path of a high-band transceiving path of the first radio-frequency transceiving module is connected to the antenna via the first radio-frequency switch, and the first path of a low-band transceiving path of the first radio-frequency transceiving module is connected to the antenna via the second radio-frequency switch; and a high-band transceiving path of the second radio-frequency transceiving module is connected to the antenna via the third radio-frequency switch, and a low-band transceiving p
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: July 3, 2018
    Assignee: ZTE Corporation
    Inventors: Zhenglin Zhou, Kezhong Ding, Yibin Zhai
  • Patent number: 9923619
    Abstract: Techniques for passive beamforming training are described. In one embodiment, for example, an apparatus may comprise at least one memory and logic to implement a station (STA), at least a portion of the logic comprised in circuitry coupled to the at least one memory, the logic to decode a medium access control (MAC) header of a beamforming frame associated with a beamforming training procedure, determine whether the beamforming frame is addressed to the STA, and in response to a determination that the beamforming frame is not addressed to the STA, identify a second STA based on a source identifier comprised in the MAC header, the second STA to comprise a source STA of the beamforming frame, and determine one or more beamforming parameters associated with the second STA based on one or more training fields comprised in the beamforming frame. Other embodiments are described and claimed.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: March 20, 2018
    Assignee: INTEL CORPORATION
    Inventor: Laurent Cariou
  • Patent number: 9887746
    Abstract: A method of controlling a system for transmitting data. The method includes transmitting data using a plurality of transmit paths, receiving at the access node a transmit power and an available transmit power of a wireless device, monitoring at the access node the received transmit power and the received available transmit power over a period of time, determining at the access node the received transmit power meets a first criteria and the received available transmit power meets a second criteria, and reducing transmit paths from the access node in response to determining the received transmit power meets the first criteria and the received available transmit power meets the second criteria.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: February 6, 2018
    Assignee: Sprint Spectrum L.P.
    Inventors: Sreekar Marupaduga, Patrick Himmelberg, Clark Halferty
  • Patent number: 9853702
    Abstract: The method is for channel estimation with transmitter (Tx) and receiver (Rx) beam training in an OFDMA HBF system wherein the transmitter and receiver communicate over a channel and each include a plurality of Radio Frequency (RF) chains and an antenna array of antenna elements corresponding to each RF chain, and wherein the transmitter includes an analog beamformer and the receiver includes an analog combiner. The method includes generating a set of orthogonal Tx training beams for the transmitter based upon a number of antenna elements in the transmitter antenna array, and generating a set of orthogonal Rx training beams for the receiver based upon a number of antenna elements in the receiver antenna array.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: December 26, 2017
    Assignee: Keysight Technologies, Inc.
    Inventors: Yi Liang, Zhou Deng
  • Patent number: 9780446
    Abstract: A method and apparatus for managing an antenna. A current radiation pattern is identified for the antenna using initial coefficients for a modulation function for the antenna. A first constraint is applied to the current radiation pattern to form a modified radiation pattern. New coefficients for the modulation function are identified as coefficients for which a difference between a radiation pattern for the antenna generated using the coefficients and the modified radiation pattern is reduced. A second constraint is applied to a set of coefficients in the new coefficients to form modified coefficients for the modulation function. The steps of applying the first constraint, identifying the new coefficients for the modulation function, and applying the second constraint are iterated until a new radiation pattern based on the modified coefficients for the modulation function meets the first constraint.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: October 3, 2017
    Assignee: THE BOEING COMPANY
    Inventor: Kai-Bor Yu
  • Patent number: 9736848
    Abstract: An apparatus and method for selecting the best beam in a wireless communication system are provided. An operation of a Base Station (BS) includes repeatedly transmitting reference signals beamformed with a first width, receiving a feedback signal indicating at least one preferred-beam having the first width from at least one terminal, determining a direction range within which reference signals beamformed with a second width are to be transmitted and a transmission pattern, based on the at least one preferred-beam having the first width, repeatedly transmitting the reference signals beamformed with the second width within the determined direction range according to the transmission pattern, and receiving a feedback signal indicating at least one preferred-beam having the second width from the at least one terminal.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: August 15, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tae-Young Kim, Hyun-Kyu Yu, Jae-Weon Cho
  • Patent number: 9730083
    Abstract: Embodiments of the disclosure provide methods and apparatuses for three-dimensional beamforming. The method may comprise: mapping vertical virtual antenna ports to physical antenna ports based on vertical reference signals to obtain mapped vertical reference signals; transmitting the mapped vertical reference signals to a user equipment; receiving a tilting indicator from the user equipment, wherein the tilting indicator is obtained based on the mapped vertical reference signals at the user equipment; determining a tilting vector based on the received tilting indicator, wherein the tilting vector indicates adjustment for traffic data in antenna vertical tilting; and adjusting traffic data with the tilting vector.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: August 8, 2017
    Assignee: NEC (China) Co., Ltd.
    Inventors: Yu Zhang, Ming Lei
  • Patent number: 9596637
    Abstract: In order to facilitate communication between an electronic device and another electronic device, the electronic device determines communication-quality metrics for a first connection in a wireless network based on received information from the other electronic device. Then, the electronic device calculates an overall communication-quality indicator for the first connection based on at least some of the communication-quality metrics. Moreover, the electronic device dynamically adapts the communication with the other electronic device based on the overall communication-quality indicator. For example, the electronic device may establish a second connection in a cellular-telephone network and may use the second connection to communicate with the other electronic device.
    Type: Grant
    Filed: April 2, 2013
    Date of Patent: March 14, 2017
    Assignee: Apple Inc.
    Inventors: Christopher J. Hansen, Kee-Bong Song, Syed A. Mujtaba, Vinay R. Majjigi, Xiaowen Wang
  • Patent number: 9584204
    Abstract: A transmitter and a method therein for transmitting discovery signals to a receiver. The transmitter and the receiver arc comprised in a radio communications system. The transmitter transmits two or more discovery signals over two or more directions. Each discovery signal is configured to span over a fraction of a carrier bandwidth.
    Type: Grant
    Filed: September 18, 2012
    Date of Patent: February 28, 2017
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Robert Baldemair, Kumar Balachandran, Dennis Hui
  • Patent number: 9525475
    Abstract: Systems and methods are presented for increasing throughput between mobile transmitters/receivers (e.g., between an Unmanned Aerial Vehicle and a ground station) using orthogonally polarized transmission channels. The system may first calibrate the receiver and transmitter antenna pairs using pilot signals and then may update look up tables for feedforward correction. The system may decouple and predict the cross polarization interference due to relative dynamic movement between the transmitter and the receiver. The system may perform a closed-loop suboptimal estimation to generate refined corrections by minimizing a difference between a training vector and a pilot-signal feedback. Cross-polarization discrimination between the transmission and reception antennas may then be Cancelled to improve signal to noise and interference ratio and performance of the system.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: December 20, 2016
    Assignee: Facebook, Inc.
    Inventor: Hong Gan
  • Patent number: 9467818
    Abstract: Techniques are described for identifying a wireless access point device using beacon messages and probe responses. An access point may generate and broadcast beacon messages which include an information element containing information specific to the device as well as to the current context of the device. For example, the information element may include a device vendor ID, product ID, and a device-unique ID. That is, the information element provides information related to the device itself independently from the configuration of the wireless network which the beacon message (or probe response) is associated with.
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: October 11, 2016
    Assignee: Cisco Technology, Inc.
    Inventors: Nolan D. O'Brien, Rodney Smith
  • Patent number: 9450720
    Abstract: A method and apparatus for operating an analog beam is provided. The apparatus includes a hybrid beam-forming structure having a small number of digital chains provided in a digital stage and a signal is transmitted and received in a Time Division Multiple Access (TDMA) scheme. The apparatus includes an analog beam-forming operating unit configured to change the analog beam for a counterpart device for which use of a next frame is to be permitted, upon receiving a request for using the next frame from at least one of multiple devices that transmit and receive signals in units of frames and a communication unit configured to transmit information indicating that the analog beam is changed to permit the use of the next frame by the counterpart device to the multiple devices.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: September 20, 2016
    Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Jeong-Ho Park, Yong Hoon Lee, Min-Hyun Kim, Seong-Jin Kim, Hyun-Jeong Kang
  • Patent number: 9425890
    Abstract: In an exemplary embodiment, a phased array antenna comprises multiple subcircuits in communication with multiple radiating elements. The radio frequency signals are independently adjusted for both polarization control and beam steering. In a receive embodiment, multiple RF signals of various polarizations are received and combined into at least one receive beam output. In a transmit embodiment, at least one transmit beam input is divided and transmitted through multiple radiating elements, with the transmitted beams having various polarizations. In an exemplary embodiment, the phased array antenna provides multi-beam formation over multiple operating frequency bands. The wideband nature of the active components allows for operation over multiple frequency bands simultaneously.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: August 23, 2016
    Assignee: ViaSat, Inc.
    Inventors: David W. Corman, Rob Zienkewicz, David Saunders
  • Patent number: 9363004
    Abstract: Described herein are one or more apparatus, that at least partially synchronize with a first radio-frequency signal from a first antenna element, of an array of spatially distributed antenna elements in a multi-antenna array receiver, to determine the position of at least one of a repeated guard interval in the first radio-frequency signal from the first antenna element, the repeat occurring at a particular defined characteristic interval. The apparatus then use the determined position of the at least one guard interval in the first radio-frequency signal to switch to a second radio-frequency signal from a second antenna element, of the array of spatially distributed antenna elements in a multi-antenna receiver, and further determine a relative orientation of the multi-antenna receiver from a transmitter of the radio-frequency signals using characteristics determined for the first and second radio-frequency signals following the at least respective partial synchronizations.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: June 7, 2016
    Assignee: Nokia Technologies Oy
    Inventors: Levente Robert Kis, Andreas Richter
  • Patent number: 9258050
    Abstract: Embodiments of the present invention relate to the field of wireless communication technologies, and provide a transceiving module, an antenna, a base station and a signal receiving method, which are capable of implementing receiving of four dual-band signals and improving uplink network performance of a base station. The transceiving module includes a combining-splitting network, a set of transceiving unit arrays and a signal processing unit that are connected to each other in sequence, and further includes a combining network setting with a connection point connected to another transceiving module, a co-element filter unit separately connected to the combining-splitting network and the combining network, and a pair of receiving units connected to the signal processing unit, where the pair of receiving units in the transceiving module is disposed with a connection point connected to the another transceiving module. The embodiments of the present invention apply to the field of communication.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: February 9, 2016
    Assignee: Huawei Technologies Co., LTD.
    Inventors: Dezheng Liu, Tao Pu, Weihua Sun, Zuojun Qin, Pinghua He
  • Patent number: 9197296
    Abstract: A method and apparatus for providing maximum ratio transmission mobile transmit diversity is provided. The method may include selecting a first transmit power for a first antenna and a second transmit power for a second antenna, wherein the first and second transmit powers are selected to generate a target power output, and using a first average power tracking unit to generate the first selected transmit power and a second average power tracking unit to generate the second selected transmit power.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: November 24, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Daniel F. Filipovic, Chengjin Zhang
  • Patent number: 9160383
    Abstract: The present disclosure relates to an iterative method for estimating covariance matrices of communication signals comprising a) computing a reference symbol covariance matrix estimate (k,l); b) inputting said reference symbol covariance matrix estimate (k,l) to a detector or a decoder in a first iteration, and thereafter inputting the covariance matrix estimate output from e) to the detector or the decoder in subsequent iterations to obtain an updated demodulated or decoded communication signal for each iteration; c) inputting the demodulated or decoded communication signal to a symbol generator; d) computing an updated data covariance matrix estimate (k,l) for each iteration based on data symbols of said regenerated communication signal; e) combining said reference symbol covariance matrix estimate (k,l) and said updated data covariance matrix estimate (k,l); and f) forwarding said covariance matrix estimate output to the detector or decoder in b) to obtain the updated demodulated or decoded communication si
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: October 13, 2015
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jianjun Chen, Fredrik Rusek, Sha Hu, Gengshi Wu, Basuki Endah Priyanto, Shashi Kant
  • Patent number: 9137698
    Abstract: Methods and apparatuses manage beam selection. A method for a mobile station (MS) includes identifying beamforming constraints of the MS. The method also includes performing measurement on a channel between a base station (BS) and the MS on at least one transmit (TX) beam and at least one receive (RX) beam. Additionally, the method includes sending beamforming feedback information based on the identified constraints of the MS and the channel measurement. A method for a base station (BS) includes receiving beamforming feedback information comprising at least one of radio frequency beamforming constraints of a mobile station or channel measurement information on a channel between the BS and the MS. Additionally, the method includes sending, to the MS, control information comprising an indication of at least one of MS RX beams or BS TX beams to be used in downlink communication with the MS based on the received beamforming feedback information.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: September 15, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ying Li, Zhouyue Pi, Shadi Abu-Surra, Sridhar Rajagopal, Kaushik Josiam
  • Patent number: 9083401
    Abstract: In one or more aspects data packets are iteratively transmitted to a receiver using predefined spatial mapping matrices, channel estimates are received from the receiver responsive to iteratively transmitted data packets, and one of the predefined spatial mapping matrices is selected for transmitting additional data packets to the receiver based on the received channel estimates.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: July 14, 2015
    Assignee: Marvell World Trade Ltd.
    Inventors: Hongyuan Zhang, Rohit U. Nabar
  • Patent number: 9031511
    Abstract: Methods and systems having improved capabilities are described for providing communications to a plurality of cellular mobile devices through generating m different sets of fixed position patterns of N RF beams across four contiguous one-millisecond LTE sub-frames from an agile beam forming antenna system of a cellular LTE base transceiver station. The cellular LTE base transceiver station is in RF frequency division duplexing (FDD) communication with the plurality of cellular mobile devices within a cell coverage area of the cellular LTE base transceiver station. Each RF beam illuminates a non-contiguous sub-area of the cell coverage area. A number m sets of RF beam patterns illuminate the area of the cell coverage area, wherein 1?m?4.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: May 12, 2015
    Assignee: All Purpose Networks LLC
    Inventors: Harvey Rubin, James Keith Brewington, Anil S. Sawkar, David M. Poticny
  • Patent number: 9020438
    Abstract: The present invention provides a data transmission method and system, where the method is used in a system architecture adopting a virtual heterogeneous network, where a macro base station covering a macro-cell and a pico base station covering a pico-cell share the same station address. The method includes the following step: sending control information and data information to user terminals in the macro-cell and the pico-cell according to location information of the user terminals so that the user terminals obtain the data information according to the control information. The system includes a sending module. The present invention implements joint scheduling of resources between a macro base station and a pico base station, reduces interference between cells, and maximally improves an overall data rate.
    Type: Grant
    Filed: September 21, 2012
    Date of Patent: April 28, 2015
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Yinggang Du, Sheng Liu, Rui Wang
  • Patent number: 9020422
    Abstract: A system includes a plurality of stations capable of communicating with each other. A station of the system may comprise multiple antenna subassemblies and a receiver coupled to the subassemblies. The station is operable to activate one or more of the subassemblies to determine a direction of a first incoming signal, and to then activate another one or more of the subassemblies to receive a second incoming signal from substantially the same direction. Alternatively, the station may comprise multiple antenna subassemblies and a receiver coupled to the subassemblies and operable to activate each of the subassemblies for a respective interval to service at least one respective transmitting station covered by the activated subassembly during the interval.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: April 28, 2015
    Assignee: STMicroelectronics, Inc.
    Inventors: Liwen Chu, George A. Vlantis
  • Patent number: 9020444
    Abstract: The present invention provides methods implemented in a base station having a plurality of antennas and one or more user terminals. One embodiment of the method includes receiving feedback from at least one user in response to transmitting a first frame to said at least one user. The first frame is formed by pre-coding at least one symbol using at least one first code word selected from at least one first code book associated with the at least one user. The method also includes transmitting at least one second frame to the user(s). The second frame(s) are pre-coded using at least one second codeword selected from at least one second codebook. The second codebook(s) determined based on the feedback and the first codeword(s).
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: April 28, 2015
    Assignee: Alcatel Lucent
    Inventors: Angeliki Alexiou, Federico Boccardi, Howard C. Huang
  • Publication number: 20150111502
    Abstract: Some demonstrative embodiments include devices, systems and/or methods of wireless communication via multiple antenna assemblies. For example, a device may include a wireless communication unit to transmit and receive signals via one or more quasi-omnidirectional antenna assemblies, wherein the wireless communication unit is to transmit, via each quasi-omnidirectional antenna assembly, a plurality of first transmissions, to receive, in response to the first transmissions, a plurality of second transmissions from another device via one or more of the quasi-omnidirectional antenna assemblies, and, based on the second transmissions, to select at least one selected transmit antenna assembly for transmitting to the other device and a selected receive antenna assembly for receiving transmissions from the other device. Other embodiments are described and claimed.
    Type: Application
    Filed: October 23, 2014
    Publication date: April 23, 2015
    Inventors: Menashe Sofer, Assaf Kasher
  • Patent number: 9014733
    Abstract: A beam allocation method of a Base Station (BS) in a wireless communication system is provided. The method includes transmitting a reference signal to a Mobile Station (MS) using a plurality of downlink transmit (Tx) beams, receiving information of a plurality of candidate downlink Tx beams determined by the MS in response to the received reference signal, selecting at least one downlink Tx beam from the plurality of candidate downlink Tx beams according to a predefined rule, generating control information for burst transmission, comprising the selected at least one downlink Tx beam information, transmitting the control information to the MS using the selected at least one downlink Tx beam, and transmitting a data burst based on Tx beam information included in the control information.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: April 21, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun-Kyu Yu, Tae-Young Kim, Jeong-Ho Park, Ji-Yun Seol, Su-Ryong Jeong
  • Patent number: 9014638
    Abstract: A Communications base-station configured to operate as a hub in a wireless network and provide communication services to a set of remote customer devices using a wireless protocol is disclosed. The communications base-station includes an antenna array having a plurality of antennae arranged in a fashion as to enable the antenna array to transmit and receive wireless signals in both a substantially omnidirectional and non-omnidirectional pattern, a physical layer (PHY) device coupled to the antenna array and configured to transmit and receive wireless signals and a media access control (MAC) device coupled to the PHY device and configured to direct the antenna array to concurrently provide beamformed wireless signals to a first customer device and omnidirectional wireless signals to second customer device.
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: April 21, 2015
    Assignee: Koninklijke Philips N.V.
    Inventors: Carlos M. Cordeiro, Dagnachew Birru, Monisha Ghosh
  • Publication number: 20150105025
    Abstract: Embodiments of the disclosure provide methods and apparatuses for three-dimensional beamforming. The method may comprise: mapping vertical virtual antenna ports to physical antenna ports based on vertical reference signals to obtain mapped vertical reference signals; transmitting the mapped vertical reference signals to a user equipment; receiving a tilting indicator from the user equipment, wherein the tilting indicator is obtained based on the mapped vertical reference signals at the user equipment; determining a tilting vector based on the received tilting indicator, wherein the tilting vector indicates adjustment for traffic data in antenna vertical tilting; and adjusting traffic data with the tilting vector.
    Type: Application
    Filed: June 8, 2012
    Publication date: April 16, 2015
    Applicant: NEC (CHINA) CO., LTD.
    Inventors: Yu Zhang, Ming Lei
  • Patent number: 9001680
    Abstract: A method, apparatus and computer program product provide improved detection of overlapping wireless networks. In this regard, the method, apparatus and computer program product may utilize a processor, such as a processor on a wireless access point, to determine one or more parameters for a scan of a wireless network to identify overlapping networks. Wireless stations may utilize the parameters to determine the content of a scan report generated from a scan of the wireless network. The wireless stations may further utilize the parameters to determine which values should be monitored and/or recorded during the scan of the network. The wireless stations may respond to the access point with results corresponding to the parameters requested by the access point, and the access point may use the results to determine channel access parameters for other devices on the network, such as the wireless stations.
    Type: Grant
    Filed: July 16, 2012
    Date of Patent: April 7, 2015
    Assignee: Broadcom Corporation
    Inventors: Timo K. Koskela, Anna Pantelidou, Samuli Turtinen, Sami-Jukka Hakola
  • Patent number: 9002283
    Abstract: Electronic devices may be provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry coupled to multiple antennas. Signal strength measurements may be gathered using the antennas and corresponding signal strength difference measurements may be produced to reflect which of the antennas is exhibiting superior performing. The signal strength difference measurements may be filtered using time-based averaging filters with different speeds. Corresponding filtered difference measurements may be compared to antenna switching criteria such as antenna switching thresholds. An antenna switching threshold may be adjusted in real time based on computations of how much variation is exhibited as a function of time between the difference measurements filtered using the filters of different speeds. Information on device movement or other data may be used in making threshold adjustments.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: April 7, 2015
    Assignee: Apple Inc.
    Inventors: Syed A. Mujtaba, Kee-Bong Song
  • Patent number: 9002284
    Abstract: A wireless communication apparatus includes: a first wireless communication section performing wireless communication on the basis of a first communication mode; a second wireless communication section performing wireless communication on the basis of a second communication mode using a different frequency band from the first communication mode; a beam learning signal generation section generating a beam learning signal for specifying a beam pattern at the time of the communication based on the second communication mode and transmitting the beam learning signal from the second wireless communication section; a response information acquisition section acquiring response information responding to the transmitted beam learning signal; and a preliminary information generation section generating preliminary information so as not to cause interference among a plurality of wireless communications using the second communication mode on the basis of the response information and transmitting the preliminary information
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: April 7, 2015
    Assignee: Sony Corporation
    Inventors: Ryota Kimura, Ryo Sawai, Yuichi Morioka
  • Patent number: 8996023
    Abstract: For downlink communication with a communication terminal using a downlink radio resource allocated to this communication terminal by a radio resource allocating unit, if this communication terminal does not transmit a first known signal using an associated uplink radio resource associated with this downlink radio resource but it transmits the first known signal using a nonassociated uplink radio resource which is not associated with this downlink radio resource and which includes the frequency band of this downlink radio resource in a frequency direction, a communication unit controls the transmission directivity of a plurality of antennas based on a second known signal if the aforementioned communication terminal transmits the second known signal in the frequency band of the aforementioned downlink radio resource in an interval between a time period of this downlink radio resource and a time period of the aforementioned nonassociated uplink radio resource.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: March 31, 2015
    Assignee: KYOCERA Corporation
    Inventor: Yuuki Nakasato
  • Patent number: 8995943
    Abstract: In an exemplary embodiment, a phased array antenna comprises multiple subcircuits in communication with multiple radiating elements. The radio frequency signals are independently adjusted for both polarization control and beam steering. In a receive embodiment, multiple RF signals of various polarizations are received and combined into at least one receive beam output. In a transmit embodiment, at least one transmit beam input is divided and transmitted through multiple radiating elements, with the transmitted beams having various polarizations. In an exemplary embodiment, the phased array antenna provides multi-beam formation over multiple operating frequency bands. The wideband nature of the active components allows for operation over multiple frequency bands simultaneously.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: March 31, 2015
    Assignee: ViaSat, Inc.
    Inventors: David W. Corman, Rob Zienkewicz, David Saunders
  • Patent number: 8995916
    Abstract: A wireless transmitter controls the number of transmission beams to be formed for transmitting a data stream depending on the number of data streams to be transmitted, and a wireless receiver selectively receives any one or more of the transmission beam from the transmission beams. In this manner, by changing the number of transmission beams (the original number of beams selectable on the receiving side) to be formed depending on the number of transmitting data streams, high throughput characteristics by a low interbeam correlation at the time of the multistream transmission and a large directional gain at the time of a single stream may be achieved.
    Type: Grant
    Filed: July 22, 2008
    Date of Patent: March 31, 2015
    Assignee: Fujitsu, Limited
    Inventors: Masafumi Tsutsui, Hiroyuki Seki
  • Patent number: 8989655
    Abstract: A method in which user equipment transmits a signal in a distributed antenna system in which a plurality of antennas is distributed in a cell, comprises the following steps: receiving uplink antenna information from a base station; controlling uplink power on the basis of the uplink antenna information; and transmitting an uplink signal on the basis of the uplink power control, wherein the uplink antenna information indicates a receiving antenna of the base station that receives the uplink signal.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: March 24, 2015
    Assignee: LG Electronics Inc.
    Inventors: Ji Won Kang, Jin Young Chun, Su Nam Kim, Bin Chul Ihm, Sung Ho Park
  • Patent number: 8989665
    Abstract: A portable electronic device for reducing specific absorption rate (SAR) is provided. The portable electronic device comprises a processor, at least one antenna, and a sensor enabled to detect when the portable electronic device is being held by a complementary holder, the processor enabled to: determine that the sensor has detected the holder; and, responsively, switch the at least one antenna from an omnidirectional mode to a directional mode such that energy is radiated from a given side of the portable electronic device.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: March 24, 2015
    Assignee: Blackberry Limited
    Inventors: Ryan Alexander Geris, Christopher David Bernard, Rene Pierre Marchand
  • Patent number: 8976882
    Abstract: A precoding weight generation method involves generating a channel matrix having channel state information transmitted as feedback from mobile stations undergoing spatial multiplexing for each cell that base stations manage, and generating precoding weights. When data transmission is targeted for a first mobile station that transmits the channel state information as feedback as well as transmits the channel state information to a weight generation target cell that is a target for generation of precoding weights, precoding weights are generated so as not to suppress interference on a second mobile station that transmits the channel state information as feedback as well as transmits the channel state information to the weight generation target cell, while suppressing interference on a third mobile station that does not transmit the channel state information as feedback except to the weight generation target cell.
    Type: Grant
    Filed: February 9, 2011
    Date of Patent: March 10, 2015
    Assignee: NTT DOCOMO, INC.
    Inventors: Hidekazu Taoka, Kenichi Higuchi
  • Patent number: 8971816
    Abstract: An object of the present invention is to provide an improved and simplified mechanism for assisting in antenna direction adjustment. The object is achieved by a method in a wireless communication device 120 for assisting in direction adjustment of a directional antenna 125. The wireless communication device 120 is adapted to be connected to a wireless communication system 100 via a directional antenna 125. The wireless communication system 100 comprises a service node 150.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: March 3, 2015
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Peter Hakansson, Benny Lennartson
  • Patent number: 8971817
    Abstract: To appropriately effect a coordination with a plurality of communication parties that perform a millimeter wave communication. Transmission and reception beams of the respective terminal stations are directed to an access point, a valid communication link based on the second communication method is utilized as a link for a high speed data transmission between the access point and the respective terminal stations. Of course, the communication link based on the first communication method between the access point and the respective terminal stations is valid and is utilized as a link for the coordination. As the transmission and reception beams are not directed between the terminal stations, the communication link based on the second communication method is invalid, but the valid communication link based on the first communication method can be utilized as the link for the coordination.
    Type: Grant
    Filed: February 9, 2010
    Date of Patent: March 3, 2015
    Assignee: Sony Corporation
    Inventors: Yuichi Morioka, Kazuyuki Sakoda, Hiroaki Takano
  • Patent number: 8971434
    Abstract: The invention relates to a technical field of multiple-antenna transmission in a wireless communication system. Communication of feedback representation of and generating a codebook suitable for precoding of multiple-antenna transmission is disclosed. An example matrix representation of precoding of a first number of antenna ports comprises precoding sub-matrices of less antenna ports.
    Type: Grant
    Filed: September 16, 2011
    Date of Patent: March 3, 2015
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Mattias Frenne, Jianghua Liu