Transceivers Patents (Class 375/219)
  • Patent number: 10317514
    Abstract: Generally discussed herein are systems, apparatuses, and methods for generating a replica of a first signal with a notch at one or more desired frequencies. In an example, an apparatus can include a pulse cataloger configured to analyze the first signal and to provide phase modulation information about the first signal, a direct digital synthesizer having an output and configured to modulate a second signal using the phase modulation information and to provide the second signal at the output. The second signal can include a representation of the first signal with a frequency notch at a particular center frequency within the bandwidth of the second signal.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: June 11, 2019
    Assignee: Raytheon Company
    Inventors: Chris S. Mclean, Harry B. Marr, Jr., Ray T. Hsu
  • Patent number: 10320463
    Abstract: A communication system includes a radio base station configured to transmit and receive signals using digital beamforming. The system includes a plurality of wireless communication devices configured to communicate with the radio base station. The wireless communication device includes a digital beamforming module configured to generate digitally pre-coded spatial streams. A pre-coding matrix is applied to a plurality of spatial streams to generate the digitally pre-coded spatial streams. The communication device includes a plurality of analog beamforming modules configured to measure signal and channel quality metrics from received packets and to calculate gain and phase adjustment values. The analog beamforming modules adjust the gain and phase of the digitally pre-coded spatial streams for analog beamforming. The communication device includes a plurality of antenna arrays configured to transmit the spatial streams.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: June 11, 2019
    Assignee: Phazr, Inc.
    Inventor: Farooq Khan
  • Patent number: 10314003
    Abstract: A method for enabling angle-based positioning of a wireless device in a Wireless Local Area Network, WLAN, system comprises the steps of extracting directional information from beamforming information comprised in channel sounding feedback obtained from a wireless device and estimating an angular direction to said wireless device based on said extracted directional information.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: June 4, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Meng Wang, Soma Tayamon
  • Patent number: 10313996
    Abstract: A method for distortion compensation in a transmission link comprising obtaining information of an amplitude distribution of a signal prior to being transmitted by a transmitter, receiving the transmitted signal at a receiver and determining a received signal amplitude distribution, comparing the received signal amplitude distribution to the amplitude distribution of the signal prior to transmission and using results of the comparison to estimate the AM/AM non-linearity in the transmitter.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: June 4, 2019
    Inventor: Fadhel M Ghannouchi
  • Patent number: 10312986
    Abstract: Described are an eNB and a UE implementing a CSI-RS protocol. The eNB has an ordered set of antenna ports for a wireless communication channel with the UE, a first circuitry operable to compose CSI-RS configuration messages that assign to the UE various CSI-RS groups specifying one or more CSI-RS antenna ports, and a second circuitry to establish an ordered list of CSI-RS antenna ports. The UE has a set of antennas, a first circuitry operable to receive from the eNB various CSI-RS configuration messages assigning to it CSI-RS groups specifying one or more CSI-RS antenna ports, and a second circuitry operable to index CSI-RS antenna ports specified by the CSI-RS groups as an ordered list of CSI-RS antenna ports. The eNB may transmit CSI-RS to the configured UE, and the UE may perform channel state information measurements on the ordered list of CSI-RS antenna ports.
    Type: Grant
    Filed: December 24, 2015
    Date of Patent: June 4, 2019
    Assignee: Intel Corporation
    Inventors: Alexei Vladimirovich Davydov, Alexander Alexandrovich Maltsev, Gregory Vladimirovich Morozov
  • Patent number: 10305495
    Abstract: Aspects of this disclosure relate to adjusting a phase of a clock signal provided to a device based on a feedback signal from the device. The feedback signal can provide phase information associated with the device and/or other information associated with the device, such as temperature information. A feedback signal processor can compute a phase control signal based on the feedback signal. The phase control signal can be used to adjust the phase of the clock signal. By adjusting the phase of one or more clock signals, several devices, such as data converters, can be synchronized.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: May 28, 2019
    Assignee: Analog Devices, Inc.
    Inventors: John Kevin Behel, Reuben Pascal Nelson, Matthew D. McShea, Matthew Louis Courcy, Kenny Gentile, Carroll C. Speir
  • Patent number: 10305568
    Abstract: Apparatuses, methods, and systems are disclosed for preparing a channel state information (“CSI”) codeword. One apparatus includes a processor and a transceiver configured to communicate 805 with a transmit-receive point (“TRP”) over a radio access network using spatial multiplexing, wherein multiple transmission layers are transmitted at a time, each transmission layer comprising multiple beams. The processor identifies a main beam for each of the multiple transmission layers and determines whether the main beams of each transmission layer are the same. The processor prepares a CSI codeword, wherein the CSI codeword comprises a first bit indicating whether the main beams of each transmission layer are the same, a first set of bits coding the main beams, and a second set of bits coding the remaining beams. The transceiver transmits the CSI codeword to the TRP.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: May 28, 2019
    Assignee: MOTOROLA MOBILITY LLC
    Inventors: Udar Mittal, Tyler Brown, Khalid Zeineddine, Jiho Song
  • Patent number: 10303434
    Abstract: A person can use a portable electronic device to electronically purchase or otherwise request a product, service or other deliverable related to audio programming to which the person is listening at the time they initiate the request. The request is fulfilled by a service that analyzes the audio content to identify the deliverable the person desires.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: May 28, 2019
    Assignee: NCR Corporation
    Inventors: Michael Cain Finley, Michael Dudgeon, Lehman Zellosis Smith, IV, John Wade, David Griffin, David Edward McCaw, Jr., James Lee Fortuna
  • Patent number: 10305569
    Abstract: Disclosed are a channel state information feedback and acquisition method and device. The application comprises: acquiring, by a terminal, a first-dimension downlink reference signal resource, S second-dimension downlink reference signal resources and a first corresponding relationship of the above configured by a network device; measuring, by the terminal and according to the first-dimension downlink reference signal resource, a first-dimension downlink reference signal, and selecting, by the terminal and according to the measured first-dimension PMI and the first corresponding relationship, a resource for measuring a second-dimension downlink reference signal, measuring, according to the resource, the second-dimension downlink reference signal, and feeding back channel state information, wherein the second-dimension reference signal is transmitted after forming a first-dimension beamforming weight.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: May 28, 2019
    Assignee: China Academy of Telecommunications Technology
    Inventors: Hui Li, Qiubin Gao, Runhua Chen, Tamrakar Rakesh, Wenhong Chen
  • Patent number: 10305179
    Abstract: In accordance with one or more embodiments, a communication device includes a dielectric antenna having a body of first dielectric material doped with particles of a second dielectric material. A cable comprising a dielectric core is coupled to a feed point of the dielectric antenna. A transmitter, coupled to the cable, facilitates a transmission of electromagnetic waves, the electromagnetic waves are guided by the dielectric core to the feed point of the dielectric antenna, without requiring an electrical return path.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: May 28, 2019
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Paul Shala Henry, Giovanni Vannucci, Thomas M. Willis, III
  • Patent number: 10298176
    Abstract: A mixer includes a transconductance circuit and a mixing circuit. The transconductance circuit includes a capacitor and first and second transconductance modules. The first transconductance module converts a single-ended to-be-shifted voltage signal at a first terminal of the capacitor into a first input current signal. The second transconductance module converts a voltage signal at a second terminal of the capacitor into a second input current signal that cooperates with the first input current signal to constitute a differential input current signal pair. The mixing circuit mixes the differential input current signal pair with a differential oscillatory voltage signal pair to generate a differential mixed voltage signal pair.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: May 21, 2019
    Assignee: NATIONAL CHI NAN UNIVERSITY
    Inventors: Yo-Sheng Lin, Ching-Hung Peng
  • Patent number: 10298271
    Abstract: An apparatus (100) for providing an joint error correction code (140) for a combined data frame (254) comprising first data (112) of a first data channel and second data (122) of a second data channel comprises a first error code generator (110) configured to provide, based on a linear code, information on a first error correction code (114a, 114b) using the first data (112). The apparatus further comprises a second error code generator (120) configured to provide, based on the linear code, information on a second error correction code (124) using the second data (122). The apparatus is configured to provide the joint error correction code (140) using the information on the first error correction code (114a, 114b) and the information on the second error correction code (124).
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: May 21, 2019
    Assignee: Infineon Technologies AG
    Inventors: Dirk Hammerschmidt, Friedrich Rasbornig, Wolfgang Scheibenzuber, Wolfgang Scherr, Thomas Zettler
  • Patent number: 10292099
    Abstract: Provided is a transmission apparatus capable of reducing power consumption of a reception apparatus. The transmission apparatus includes a modulator that modulates a data signal to generate a transmission signal. The modulator modulates the data signal by assigning the data signal to a frequency difference between a first frequency and a second frequency in a carrier.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: May 14, 2019
    Assignee: Panasonic Corporation
    Inventors: Koji Imamura, Takayuki Abe
  • Patent number: 10284307
    Abstract: A radio frequency interconnect (RFI) includes a transmitter side connected to a first end of a channel, a receiver side connected to a second end of the channel opposite the first end and a calibration system. The receiver side includes at least one of the following configurations: (a) at least one gain control amplifier (GCA) or at least one analog to digital converter (ADC). The calibration system is configured to transmit a predetermined data set through the channel, receive an output from the at least one ADC or the at least one GCA, and calibrate the at least one ADC or the at least one GCA based on a measured data set. The output includes the measured data set based on the predetermined data set transmitted through channel.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: May 7, 2019
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Lan-Chou Cho, William Wu Shen, Feng Wei Kuo, Huan-Neng Chen
  • Patent number: 10284713
    Abstract: A probing signal transmitted on a twisted pair telephone line in a DSL system is reflected and received at a DSL device. An estimate of one of a DSL data transmission signal or DSL synch symbol transmission signal is removed from the received probing signal to recover the reflected probing signal. The recovered reflected probing signal is processed to determine characteristics information of the twisted pair telephone line.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: May 7, 2019
    Assignee: ASSIA SPE, LLC
    Inventors: Mark B. Flowers, Mark H. Brady, Marc Goldburg, Mark P. Mallory, Ardavan Maleki Tehrani
  • Patent number: 10284256
    Abstract: Embodiments of the present invention provide a nonlinear precoding bit loading method, a transmit end, a receive end, and a system. The method includes: determining, power control factors of multiple preset quantities of bits; obtaining, a first correspondence between the multiple preset quantities of bits and signal to noise ratios without power control; determining, a second correspondence between the multiple preset quantities of bits and signal to noise ratios with power control according to the power control factors and the first correspondence; and after actually measuring a signal to noise ratio with power control on a subcarrier, determining, according to the second correspondence, a preset quantity of bits corresponding to the actually measured signal to noise ratio with power control, using the determined preset quantity of bits as an actual bit loading quantity of the subcarrier, and notifying a transmit end of the actual bit loading quantity.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: May 7, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Bin Zhou, Xiang Wang
  • Patent number: 10284270
    Abstract: A transmitting radio node precodes a transmission from an antenna array to a receiving radio node. The array includes co-polarized antenna elements aligned in a given spatial dimension of the array. The transmitting radio node precodes the transmission from different subarrays of the antenna elements using respective coarse-granularity precoders that are factorizable from a multi-granular precoder targeting the given spatial dimension of the array at different granularities, so as to virtualize the subarrays as different auxiliary elements. The transmitting radio node also precodes the transmission from the different auxiliary elements using one or more finer-granularity precoders that are also factorizable from the multi-granular precoder. In this case, the coarse granularity precoders and the one or more finer-granularity precoders are represented within one or more codebooks used for said preceding.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: May 7, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Niklas Wernersson, Svante Bergman, Sebastian Faxér
  • Patent number: 10284310
    Abstract: Embodiments herein relate to methods performed by a wireless device for sending a report on channel information to a network node, methods performed by a network node for receiving a report on channel information, and corresponding wireless devices and network nodes. A network node controls at least one Transmission Point (TP) that transmits TP beams. Each TP beam is associated with respective beamformed Beam-specific Reference Signal (BRS) for channel information measurements. The wireless device sends the report, which comprises a number of sub-reports, to the network node. Each sub-report is associated with a TP beam. Each associated TP beam comprises at least one BRS and is selected by the device. Each sub-report is also associated with an indicator of channel quality value for one code word transmitted by the network node on the associated TP beam.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: May 7, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Mattias Frenne, Stefan Parkvall, Johan Furuskog
  • Patent number: 10285224
    Abstract: A microwave processing apparatus is provided with an oscillator, a power amplifier, a heating chamber that accommodates an object to be heated, a power feeder which is disposed on a wall surface of the heating chamber, which receives an output transmitted from a microwave generator and which radiatively feeds the microwave into the heating chamber, and a power detector that detects the power reflected from the power feeder to the power amplifier. The microwave processing apparatus determines a plurality of points of heating frequencies by using top several points of minimum point frequencies of the reflected power, and performs frequency hopping heating within a predetermined unit time.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: May 7, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Keisuke Muto, Tomotaka Nobue
  • Patent number: 10277292
    Abstract: Radio network node and method therein, for communication in a wireless communication system. The radio network node comprises: a plurality of antenna elements, forming an antenna array; a plurality of transceivers, each transceiver coupled to at least one dedicated antenna element of the antenna array; and a controller configured to adjust a first subset of the transceivers to work at a first frequency band, and to adjust a second subset of the transceivers to work at a second frequency band. The first subset of transceivers and the second subset of transceivers (are disjoint and configured to operate at their respective frequency bands simultaneously.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: April 30, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Mats Högberg, Björn Sihlbom, Ulrik Imberg, Tomas Wilhelmsson, Teijo Henrikki Lehtinen, Yajun Jiang
  • Patent number: 10277336
    Abstract: Systems and methods for fast recovery from serious interferences using limited retransmissions. In one embodiment, a system includes a transceiver coupled to a second transceiver over a communication channel. The transceiver maintains a pre-retransmission packet loss rate below 1% when there is no serious interference. A limited resources retransmission module (LRRM) stores, for a delayed transmission, a maximum amount of erred packets that are accumulated during less than 1 ms at data rate above 500 Mbps. And within less than 1 ms from receiving an indication that the serious interference has occurred, a fast-adaptive canceller mitigates the effect of the serious interference, bringing the effect to a level that enables the communication system to successfully transmit data at a rate of above 500 Mbps.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: April 30, 2019
    Assignee: Valens Semiconductor Ltd.
    Inventors: Eyran Lida, Aviv Salamon, Gaby Gur Cohen, Israel Greiss
  • Patent number: 10277434
    Abstract: Disclosed are a real number M-ary signal encoding method, where M is a real number having N time dimensions and L frequency dimensions, and an encoding apparatus using the encoding method. The real number M-ary encoding apparatus according to the present invention comprises a coding unit which codes every K (K is an integer) binary bit units of binary data DATA to generate a first input code and a second input code, a first signal generator which receives the first input code and generates N1 number of M1-ary signals, a second signal generator which receives the second input code and generates N2 number of M2-ary signals, and a first time division multiplexing module which temporally multiplexes the N1 number of M1-ary signals and the N2 number of M2-ary signals to generate a real number M-ary signal which utilizes a voltage ratio a (a=A2/A1) used for M1-ary and M2-ary signals to minimize a transmission error rate.
    Type: Grant
    Filed: April 21, 2015
    Date of Patent: April 30, 2019
    Assignee: IDAC Holdings, Inc.
    Inventors: Hae Chung, Han Chung
  • Patent number: 10277204
    Abstract: Self-interference cancellers are provided. The self-interference cancellers can include multiple second-order, N-path Gm-C filters. Each filter can be configured to cancel self-interference on a channel of a desired bandwidth. Each filter can be independently controlled using a variable transmitter resistance, a variable receiver resistance, a variable baseband capacitance, a variable transconductance, and a variable time shift between local oscillators that control switches in the filter. By controlling these variables, magnitude, phase, slope of magnitude, and slope of phase of the cancellers frequency responses can be controlled for self-interference cancellation. A calibration process is also provided for configuring the canceller.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: April 30, 2019
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Jin Zhou, Harish Krishnaswamy
  • Patent number: 10278157
    Abstract: This disclosure relates to control of communications by a communication device in a service area. Resources for simultaneous communications via a plurality of antennas in the service area are allocated and information of said allocated resources are sent via a plurality of control channels to the communication device. The communication device receives the plurality of control channels and can communicate simultaneously via the plurality of antennas based on the information.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: April 30, 2019
    Assignee: Nokia Solutions and Networks Oy
    Inventors: Peter Skov, Chunli Wu
  • Patent number: 10278214
    Abstract: Embodiments of systems and methods enabling a node of a first Radio Access Technology (RAT) to detect (co-channel) frames and/or Access Points (APs)/nodes of a second RAT using receiver hardware of the first RAT are disclosed. While not being limited thereto, in some embodiments, the first RAT is Long Term Evolution (LTE) and the second RAT is Wi-Fi, and systems and methods are disclosed that enable a LTE node (e.g., an LTE Radio Access Network (RAN) node such as a base station or a low power node operating in an unlicensed frequency band) to detect Wi-Fi preambles and/or Wi-Fi beacons (and thus the number of co-channel Wi-Fi APs).
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: April 30, 2019
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventor: Alfred Schmidt
  • Patent number: 10270499
    Abstract: The present invention provides a data transmission method and device. The method includes: performing, by the first communications equipment, multi-stream data transmission with the second communications equipment according to a first antenna port, where the first antenna port is an antenna port, of the first communications equipment, satisfying a condition for multi-stream data transmission between the first communications equipment and the second communications equipment. The method provided in embodiments of the present invention improves applicability of a multi-stream data transmission system for line of sight propagation.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: April 23, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Leiming Zhang, Kunpeng Liu, Yongxing Zhou
  • Patent number: 10270505
    Abstract: A channel state information sending method, a channel state information receiving method, and a device are disclosed, to reduce resource overheads required when a terminal device feeds back CSI to a network device in a scenario of a high precision codebook-based precoding matrix. The method includes: determining, by a terminal device, a precoding matrix W; sending, by the terminal device, a signal including CSI to a network device; obtaining, by the network device, an RI and indication information based on the signal including the CSI; obtaining, by the network device, a PMI2 based on the RI and the indication information; and determining, by the network device, the precoding matrix W based on the rank indicator RI and the second precoding matrix indicator PMI2.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: April 23, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Ruiqi Zhang, Xueru Li, Di Zhang
  • Patent number: 10263814
    Abstract: A multiple access scheme is described. A first bit stream is scrambled from a first terminal according to a first scrambling signature. A second bit stream is scrambled from a second terminal according to a second scrambling signature, wherein the first bit stream and the second bit stream are encoded using a low rate code. The first scrambling signature and the second scrambling signature are assigned, respectively, to the first terminal and the second terminal to provide a multiple access scheme.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: April 16, 2019
    Assignee: Hughes Network Systems, LLC
    Inventors: Mustafa Eroz, Lin-Nan Lee, Lakshmi Iyer, Neal Becker
  • Patent number: 10255448
    Abstract: A system includes a transmit equalizer to equalize a data stream using a set of transmit parameters to generate an input signal. The system further includes a communication channel to receive the input signal. The system further includes a receive equalizer to receive an output signal from the communication channel in response to the input signal and detect the data stream from the output signal using a set of receive parameters. The system additionally includes a controller to change the set of transmit parameters in response to a condition, where the transmit parameters, the receive parameters, and the condition are selected to both enable the receive equalizer to detect the data stream from the output signal and reduce the likelihood of an external circuit detecting the data stream from the output signal.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: April 9, 2019
    Assignee: International Business Machines Corporation
    Inventors: Layne A. Berge, Benjamin A. Fox, Wesley D. Martin, George Zettles
  • Patent number: 10257799
    Abstract: A transport network (20) is connected to a first wireless base station (3, 4) and to a second wireless base station (6). The first wireless base station comprises a remote radio unit (3) and a baseband processing unit (4) which are connected by the transport network (20). A node (16) of the transport network (20) receives a synchronous time division multiplexed communication signal which carries at least a first communication signal between the baseband processing unit (4) and the remote radio unit (3). The node (16) determines a frequency synchronisation signal from the synchronous time division multiplexed communication signal. The node (16) transmits the synchronous time division multiplexed communication signal to the remote radio unit (3) of the first wireless base station. The node (16) transmits the frequency synchronisation signal to the second wireless base station (6). The node (16) also assists with providing phase/time synchronisation to the second wireless base station (6).
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: April 9, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Stefano Ruffini, Stefano Stracca
  • Patent number: 10243712
    Abstract: Systems, methods, apparatuses, and computer program products for coded allocation of channel state information (CSI) reference signals (RS) are provided. According to one method, the CSI-RSs are allocated by a network node into a square matrix, such that each CSI_RS is transmitted over several predefined antenna ports, allowing user equipment to reconstruct individually any 2N out of N2 channel components.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: March 26, 2019
    Assignee: Nokia Solutions and Networks GMBH & Co. KG
    Inventor: Wolfgang Zirwas
  • Patent number: 10236936
    Abstract: Establishing a communication link may include transmitting by a first device an unmodulated first electromagnetic EHF signal and receiving by a second device the first electromagnetic EHF signal. The second device may determine whether the received first electromagnetic EHF signal indicates that a first shield portion and a second shield portion are in alignment. The transmission of a modulated second electromagnetic EHF signal may be enabled when the received first electromagnetic EHF signal indicates that both the shield portions are in alignment and may be disabled when the received first electromagnetic EHF signal indicates that the first and second shield portions are not in alignment.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: March 19, 2019
    Assignee: Keyssa, Inc.
    Inventors: Gary D. McCormack, Ian A. Kyles
  • Patent number: 10237105
    Abstract: Methods, systems, and devices for wireless communication are described that support multiplexing uplink transmissions with transmit diversity with a single carrier waveform. Two or more UEs may be configured to use space time block codes (STBC) for transmissions using multiple uplink antennas. A first UE may be configured to use a first STBC for a first uplink transmission. An orthogonal cover code (OCC), such as a Walsh code, may be applied to the first STBC to generate a second STBC, and a second UE may use the second STBC for a second uplink transmission. The first UE and the second UE may concurrently transmit the first uplink transmission and the second uplink transmission. The first STBC and the second STBC may be applied across multiple OFDM symbols, or may be applied within an OFDM symbol on a modulated symbol level.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: March 19, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Yi Huang, Wei Zeng, Hao Xu, Wanshi Chen, Peter Gaal, Renqiu Wang
  • Patent number: 10235378
    Abstract: In one example, a method includes receiving metadata in the form of a modification to metadata represented by a file system namespace abstraction, and the file system namespace abstraction corresponds to less than the entire file system namespace. Next, the file system namespace abstraction is updated based on the received metadata. Next, a determination is made whether or not caching is enabled for the file system namespace abstraction. If caching is enabled for the file system namespace abstraction, the updated file system namespace abstraction is cached in SSD storage.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: March 19, 2019
    Assignee: EMC IP HOLDING COMPANY LLC
    Inventors: Murthy Mamidi, George Mathew, Pengju Shang
  • Patent number: 10230421
    Abstract: A method for reducing a distortion component within a baseband receive signal is provided. The baseband receive signal is derived from a radio frequency signal and the distortion component is related to an undesired signal component of the radio frequency signal. The method includes generating a first local oscillator signal having a frequency related to a frequency of the undesired signal component. Further the method includes generating an auxiliary baseband signal using the radio frequency signal and the first local oscillator signal. The method further includes generating a second local oscillator signal having a frequency related to a frequency of a desired signal component of the radio frequency signal. Further the method includes generating the baseband receive signal using the radio frequency signal and the second local oscillator signal. The method includes modifying the baseband receive signal based on the auxiliary baseband signal.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: March 12, 2019
    Assignee: Intel IP Corporation
    Inventors: Ram Kanumalli, Andreas Mayer, Werner Schelmbauer, Ahmed S. Elmaghraby, Burkhard Neurauter
  • Patent number: 10230550
    Abstract: A method for diminishing passive intermodulation (PIM) is provided. The method comprises: upsampling an uplink baseband modulated signal; upsampling a downlink baseband modulated signal; determining a time delay for the upsampled downlink baseband modulated signal; time delaying the upsampled downlink baseband modulated signal by the determined time delay; estimating a third order PIM distortion (PIMD) product by filtering the time delayed, upsampled downlink baseband modulated signal with a third order power series kernel; generating a first filtered signal by subtracting the estimated third order PIMD product from the upsampled downlink baseband modulated signal; estimating a Nth order PIMD product by filtering the time delayed, upsampled downlink baseband modulated signal with a Nth order power series kernel; generating a nth filtered signal by subtracting the estimated Nth order PIMD product from the n?1th filtered signal; and downsampling the nth filtered signal.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: March 12, 2019
    Assignee: CommScope Technologies LLC
    Inventors: Khalid W. Al-Mufti, Thomas B. Gravely, Ariful Hannan
  • Patent number: 10224997
    Abstract: A method of determining a beam for use in wireless communication is disclosed. The method is performed in a communication device comprising a digital receiver and an analog receiver. The method comprises receiving signaling on an active antenna port by using the digital receiver, measuring power of one or more beams received at one or more of a respective currently inactive antenna ports by using the analog receiver, and determining, the beam for use in the wireless communication by comparing received power of a beam received at the active antenna port to the power of the one or more beams received at the one or more respective currently inactive antenna port, and determining the beam for use to be the beam having the highest received power. A communication device, computer program and computer program products are also disclosed.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: March 5, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Fredrik Athley, Andreas Nilsson, Sven Petersson
  • Patent number: 10225067
    Abstract: A method of calibrating a phased array including an array of antenna elements, RF communication circuits each of which is electrically coupled to a different corresponding antenna element within the array of antenna elements, and a signal feed network that electrically couples a first signal line to second signal lines, wherein each second signal line is electrically coupled to a different corresponding RF communication circuit among the RF communication circuits, the method involving: performing a first phase of a calibration operation, the first phase of the calibration operation involving calibrating the signal feed network independent of the RF communication circuits; and performing a second phase of the calibration operation, the second phase of the calibration operation involving calibrating, independent of the signal feed network, each of the RF communication circuits until all RF communication circuits among the RF communication circuits are calibrated.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: March 5, 2019
    Assignee: Blue Danube Systems, Inc.
    Inventors: Mihai Banu, Yiping Feng
  • Patent number: 10218540
    Abstract: One aspect is a circuit for tuning a resonance frequency of an electrically small antenna and directly exciting the electrically small antenna. The circuit includes a first source configured for providing a constant voltage. The circuit also includes an antenna and a switched capacitor configured for being alternatively alternately coupled to the first source to be charged thereby and to the antenna for exciting the antenna. Another aspect is a transmitter for transmitting a wireless signal using an antenna without using a variable voltage source to excite the antenna. The transmitter includes a first source configured for providing a constant voltage. The transmitter further includes an antenna and a switched capacitor configured for being alternately coupled to the first source to be charged thereby and to the antenna for exciting the antenna and for tuning a resonance frequency of the antenna.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: February 26, 2019
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: Mohsen Salehi, Majid Manteghi
  • Patent number: 10219406
    Abstract: A radio remote unit, including a unit body, and multiple heat dissipation fins that are disposed on a surface of the body, where an opening groove is disposed on the heat dissipation fin, and opening grooves on the multiple heat dissipation fins form a fan ventilation groove, where the fan ventilation groove is connected to ventilation channels between the heat dissipation fins, and a fan is disposed in a built-in manner in the fan ventilation groove. The fan ventilation groove formed by the opening grooves on the multiple heat dissipation fins is connected to the ventilation channels between the heat dissipation fins, and the fan is disposed, which implements that in a case in which a quantity of heat dissipation fins is unchanged, the fan performs air cooling on the radio remote unit, effectively improving a heat dissipation capability.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: February 26, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Weifeng Hu, Vadim Tsoi, Lei Li
  • Patent number: 10217397
    Abstract: In a method of operating a display apparatus, during a first period in which image data is provided to a data driver, a clock embedded data signal having an output differential voltage (“VOD”) set to a first voltage value is applied to the data driver. The VOD of the clock embedded data signal relates to a voltage difference between a high level and a low level of the clock embedded data signal. During a second period in which the image data is not provided to the data driver, the VOD of the clock embedded data signal applied to the data driver is changed to a second voltage value smaller than the first voltage value.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: February 26, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ki-Seob Lee, Sangrock Yoon, Dongin Kim
  • Patent number: 10205614
    Abstract: A signaling system includes a pre-emphasizing transmitter and an equalizing receiver coupled to one another via a high-speed signal path. The receiver measures the quality of data conveyed from the transmitter. A controller uses this information and other information to adaptively establish appropriate transmit pre-emphasis and receive equalization settings, e.g. to select the lowest power setting for which the signaling system provides some minimum communication bandwidth without exceeding a desired bit-error rate.
    Type: Grant
    Filed: June 16, 2018
    Date of Patent: February 12, 2019
    Assignee: Rambus Inc.
    Inventors: Jared L. Zerbe, Fred F. Chen, Andrew Ho, Ramin Farjad-Rad, John W. Poulton, Kevin S. Donnelly, Brian S. Leibowitz, Vladimir Stojanovic
  • Patent number: 10205540
    Abstract: A signal detection device according to the embodiment of the present invention includes a memory and processing circuitry. The memory is configured to store a program. The processing circuitry is for executing the program and is configured to calculate a first signal level indicative of a signal level of a digital complex signal; calculate a first variation indicative of a temporal variation of the first signal level; calculate a statistic in a predetermined first time period on the basis of the first variation within the first time period; and determine, on the basis of the statistic in the first time period, whether or not an interference source signal indicative of a signal of a radio wave coming from an interference source is included in the digital complex signals within the first time period.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: February 12, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kensuke Nakanishi, Hiroki Mori, Takeshi Kumagaya, Takahisa Kaihotsu, Daisuke Yashima
  • Patent number: 10194409
    Abstract: A near field communication device includes an antenna, a matching circuit connected to the antenna, a clock extraction block that extracts a clock from a signal received by the antenna and outputs the extracted clock, a frequency compensation block that compensates for a frequency of the extracted clock and outputs a compensated clock, and a modulation and amplification block that performs modulation and amplification by using the compensated clock and outputs a transmit signal to the matching circuit. A first extracted clock has a first frequency that is extracted when the transmit signal is not output and a second extracted clock has a second frequency that is extracted when the transmit signal is output, the frequency compensation block compensates for the second frequency of the second extracted clock based on a difference between the first frequency of the first extracted clock and the second frequency of the second extracted clock.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: January 29, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byeongtaek Moon, Jongpil Cho, Junho Kim, Iljong Song
  • Patent number: 10193718
    Abstract: A data modulation apparatus may comprise a S2D conversion part including a first amplifier operating based on a carrier wave signal and two transformers receiving an output signal of the first amplifier; a first switch part transferring status of input data to the first amplifier based on the input data; a differential amplification part receiving output signals of the S2D conversion part and amplifying the output signals of the S2D conversion part; a D2S conversion part receiving output signals of the differential amplification part and performing modulation on the output signals by converting the output signals to a single signal; and a second switch part transferring the output signals of the differential amplification part to the D2S conversion part based on the input data. Here, the first switch part and the second switch part may be alternately turned on and off.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: January 29, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sun Woo Kong, Bong Hyuk Park, Moon Sik Lee, Hui Dong Lee
  • Patent number: 10185334
    Abstract: The present application provides a method and device for detecting temperature of a radio remote unit, to solve the problem that an RRU could be damaged due to an excessively high temperature. The method includes: acquiring temperature data of a radio remote unit; configuring power data of the radio remote unit according to the temperature data, when the temperature data is less than a temperature threshold or within the temperature threshold; and closing radio frequency channel(s) of the radio remote unit when the temperature data is more than the temperature threshold.
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: January 22, 2019
    Assignee: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.
    Inventors: Xiaoyu Lei, Tao Duan, Huarong Sun, Liqiang Xing
  • Patent number: 10187166
    Abstract: The present invention is directed to a method of controlling a communications link and apparatus configured to perform this method. This invention is particularly related to but in no way limited to MIMO (multiple inputs multiple outputs) wireless communications systems. The method comprises the steps of determining at the receiver the quality of the communications link and based on this, selecting a group of transmission parameters and an element from this group. These selections are then communicated to the transmitter. The transmission parameter may be the transmission configuration such as the modulation and coding scheme. The invention minimizes the required feedback signalling from the receiver to the transmitter by exploiting temporal correlation of the parameter being controlled, while allowing rapid selection of the parameter.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: January 22, 2019
    Assignee: Apple Inc.
    Inventor: Steven John Baines
  • Patent number: 10182505
    Abstract: A circuit board includes a board base element, a communication circuit connection terminal, an antenna connection terminal, and a circuit pattern including wires and lands to which predetermined circuit elements are mountable. The predetermined circuit elements include optional elements including a first coil and a second capacitor. The optional elements are electronic components to be mounted or not in the circuit pattern depending on whether a second antenna is connected to a second antenna connection terminal. The predetermined circuit elements further include basic elements including a first capacitor and first and second filters. The basic elements are electronic components to be mounted in the circuit pattern regardless of whether the optional elements are mounted. The circuit pattern is formed such that the single circuit board can optionally support plural types of antenna configurations by changing a manner of mounting the optional elements and changing the circuit configuration.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: January 15, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Akihiro Ochii
  • Patent number: 10177812
    Abstract: Methods and systems are described for reduction of crosstalk in multi-wire communications systems using ensemble codes. Constraints applied to code construction and/or permissible encoding sequences eliminate transmit patterns shown to generate capacitively coupled and/or inductively coupled crosstalk.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: January 8, 2019
    Assignee: KANDOU LABS, S.A.
    Inventor: Amin Shokrollahi
  • Patent number: 10177711
    Abstract: Multi-band power amplification system having enhanced efficiency through elimination of band selection switch. In some embodiments, a power amplification system can include a plurality of power amplifiers (PAs), with each PA being configured to receive and amplify a radio-frequency (RF) signal in a frequency band. The power amplification system can further include an output filter coupled to each of the PAs by a separate output path such that the power amplification system is substantially free of a band selection switch between the plurality of PAs and their corresponding output filters. Each PA can be further configured to drive approximately a characteristic load impedance of the corresponding output filter by, for example, the PA being operated with a high-voltage (HV) supply.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: January 8, 2019
    Assignee: Skyworks Solutions, Inc.
    Inventor: Philip John Lehtola