Diversity Patents (Class 375/267)
  • Patent number: 10707978
    Abstract: [Object] To suppress the overhead related to the transmission of the reference signal when beamforming is performed. [Solution] Provided is an apparatus, including: an acquiring unit configured to acquire antenna-related information related to an antenna port allocated to a directional beam for transmission by the directional beam; and a notifying unit configured to notify a terminal apparatus of the antenna-related information.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: July 7, 2020
    Assignee: SONY CORPORATION
    Inventor: Hiroaki Takano
  • Patent number: 10700793
    Abstract: A method of receiving information is provided. The method is performed at a system for information transfer. The method includes receiving a first signal pulse and determining a first frequency band associated with the first signal pulse. The method includes, in accordance with a determination that the first frequency band is a respective frequency band in a predefined set of frequency bands, determining, from a predefined set of symbols, a first symbol associated with the first frequency band and represented by the first signal pulse and providing the first symbol. Each frequency band in the predefined set of frequency bands is associated with a distinct respective symbol in the predefined set of symbols, and frequency bands in the predefined set of frequency bands, in aggregate, are not contiguous.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: June 30, 2020
    Assignee: ASTRONICS AEROSAT
    Inventors: Richard P. Lizotte, Narasimhan Doriswamy, Jonathan E. Epstein, Rick A. Evans, John M. Wilson
  • Patent number: 10700738
    Abstract: A method for controlling optimization of vectoring performance, using precoding in the transmission of data between at least two transmitters and a plurality of receivers via a plurality of communication channels over a plurality of subcarrier frequencies, the method comprising determining communication performance for said communication channels collectively, by using default precoding parameters; comparing between said communication performance and corresponding service level agreement data associated with each of said communication channels, thereby generating management control data; determining updated precoding parameters, according to said management control data; and applying said updated precoding parameters.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: June 30, 2020
    Assignee: Sckipio Technologies S.I LTD
    Inventors: Rami Verbin, Guy Reina, Oren Mansour
  • Patent number: 10700744
    Abstract: A method of receiving a downlink channel, which is received by a user equipment from an eNB in a wireless communication system, is disclosed in the present specification. Specifically, the method includes the steps of receiving a downlink control channel for receiving a DM-RS (demodulation reference signal) based downlink data channel from the eNB, and receiving the DM-RS based downlink data channel using DM-RS configuration information included in the downlink control channel. In this case, if single-codeword transmission via the DM-RS based downlink data channel is indicated by the downlink control channel, the DM-RS based downlink data channel is received using a transmission diversity scheme. If two-codewords transmission via the DM-RS based downlink data channel is indicated by the downlink control channel, the DM-RS based downlink data channel is received using a spatial multiplexing scheme.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: June 30, 2020
    Assignee: LG ELECTRONICS INC.
    Inventor: Hyungtae Kim
  • Patent number: 10701534
    Abstract: In a vehicle-to-vehicle communication system, an intersection-located road side unit (RSU) having two omni-antennas applies spatial filtering to the antennas' RX signals to recover first and second overlapping basic safety messages (BSMs) concurrently transmitted by two intersection-approaching vehicles that have no direct line of sight (NLOS) between them. The RSU retransmits each BSM for receipt by the other vehicle using either an omnidirectional retransmission technique in which the two messages are sequentially transmitted using an omnidirectional beam-pattern, a directional retransmission technique in which the two messages are sequentially transmitted using directional beam-patterns, or an XOR retransmission technique in which the RSU applies an XOR operation to the two BSMs and transmits the resulting XOR message using an omnidirectional beam-pattern. A receiving vehicle can apply an XOR operation to the XOR message and a local copy of the first BSM message to recover the second BSM message.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: June 30, 2020
    Assignee: NXP B.V.
    Inventors: Thanh Hieu Nguyen, Md Noor-A-Rahim, Yong Liang Guan, Hong Li
  • Patent number: 10694562
    Abstract: This disclosure relates to techniques for supporting narrowband device-to-device wireless communication, including possible techniques for performing discovery in an off grid radio system. According to some embodiments, a wireless device may determine a number of synchronization signal repetitions to use for a narrowband device-to-device transmission. The wireless device may perform the transmission, including transmitting the determined number of synchronization signal repetitions. The transmission may include an indication of the number of synchronization signal repetitions used in the transmission.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: June 23, 2020
    Assignee: Apple Inc.
    Inventor: Li Su
  • Patent number: 10693603
    Abstract: The present specification proposes a method for a station to transmit and receive a signal in a wireless LAN (WLAN) system and an apparatus therefor. More specifically, when the station transmits and receives a signal via a plurality of channels, the present invention proposes a method of performing beamforming training on the plurality of channels, a method of transmitting and receiving a signal based on the beamforming training and an apparatus therefor.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: June 23, 2020
    Assignee: LG Electronics Inc.
    Inventors: Sungjin Park, Jinmin Kim, Kyungtae Jo, Hangyu Cho
  • Patent number: 10693539
    Abstract: A method for indicating a combination between a codeword and a layer in a MIMO communication, system, a layer mapping method, and a data transmission method using the same are disclosed. A minimum number of codeword-layer mapping combinations from among all available combinations based on the' numbers of all codewords and all layers are pre-defined in consideration of a ratio of a codeword to a layer, a reception performance of a receiver, and reduction of combinations, so that a data transmission method using the predefined combinations is implemented. If a. specific one codeword is mapped to at least two layers, a diversity gain can be acquired.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: June 23, 2020
    Assignee: LG Electronics Inc.
    Inventors: Dongwook Roh, Bonghoe Kim, Youngwoo Yun, Dongyoun Seo, Joonkui Ahn, Kijun Kim
  • Patent number: 10693522
    Abstract: A method and a device for transmitting channel state information (CSI) in a wireless communication system are provided. A terminal performs a measurement on the basis of at least one beamformed CSI reference signal (RS) resource, and transmits, to a base station, the CSI and information relating to preferred beam on the basis of the measurement result, wherein the CSI includes a precoding type indicator (PTI), and the PTI indicates whether the measurement is based on a CSI RS resource which is not precoded, or is based on the beamformed CSI RS resource.
    Type: Grant
    Filed: September 5, 2016
    Date of Patent: June 23, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Heejin Kim, Jiwon Kang, Kilbom Lee, Kitae Kim
  • Patent number: 10693537
    Abstract: A bit field indication manner is provided. A first field is determined, where the first field includes T1 bits, at least one of the T1 bits indicates at least two elements {bi0, bi1, . . . , bik} in a set B, the at least one bit further indicates at least one element {?j0, ?j1, . . . , ?jh} in a set ?, and at least one element in {bi0, bi1, . . . , bik} and at least one element in {?j0, ?j1, . . . , ?jh} are used to form a precoding matrix, where the set B={b0, b1, . . . , bT2?1}, an element in the set B is a vector with a length of N/4, the set ?={?0, ?1, . . . , ?S?1}, an element in ? is a complex number of a unit amplitude.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: June 23, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Xueru Li, Ruiqi Zhang
  • Patent number: 10693540
    Abstract: Disclosed in the present application is a method for a terminal periodically reporting, to a base station, channel state information on the basis of a linear combination codebook in a wireless communication system.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: June 23, 2020
    Assignee: LG Electronics Inc.
    Inventors: Hyungtae Kim, Haewook Park
  • Patent number: 10686567
    Abstract: Disclosed in a method of discontinuous data reception in a mobile communication system. The method includes: receiving downlink data and decoding the received downlink data by the UE; when the decoding is not successful, starting a timer for receiving retransmitted data; when the downlink data has been received by a configured downlink assignment, operating a downlink carrier, through which the downlink data has been received, in an active time; and when the downlink data has been received by a dynamic transmission resource and the downlink carrier, through which the downlink data has been received, is different from a downlink carrier, through which a scheduling command for the downlink data has been received, operating the downlink carrier, through which the scheduling command for the downlink data has been received, and the downlink carrier, through which the downlink data has been received, in an active time.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: June 16, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Soeng-Hun Kim, Gert-Jan Van Lieshout
  • Patent number: 10686555
    Abstract: An apparatus and method for generating a broadcast signal frame for signaling a time interleaving mode are disclosed. An apparatus for generating broadcast signal frame according to an embodiment of the present invention includes a combiner configured to generate a multiplexed signal by combining a core layer signal and an enhanced layer signal; a power normalizer configured to perform power-normalizing for reducing the power of the multiplexed signal to a power level corresponding to the core layer signal; a time interleaver configured to generate a time-interleaved signal by performing time interleaving after performing the power-normalizing; and a frame builder configured to generate a broadcast signal frame including a preamble for signaling a time interleaving mode corresponding to the time interleaver for each of physical layer pipes (PLPs).
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: June 16, 2020
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung-Ik Park, Sun-Hyoung Kwon, Jae-Young Lee, Bo-Mi Lim, Heung-Mook Kim, Nam-Ho Hur
  • Patent number: 10686641
    Abstract: Signaling and feedback schemes of channel variation information from WLAN receiver are proposed. WLAN receiver performs channel tracking and obtains channel variation information. The signaling and feedback of channel variation information can help WLAN transmitter to decide when to apply travelling pilots or mid-amble in the transmission. Furthermore, the channel variation information can assist WLAN transmitter for scheduling the next transmission properly and thereby enhancing the system performance of WLAN.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: June 16, 2020
    Assignee: MEDIATEK INC.
    Inventors: Jianhan Liu, Chih-Kai Chen, Tianyu Wu, Thomas Edward Pare, Jr.
  • Patent number: 10680695
    Abstract: Codebook designs are disclosed for full-dimensional multiple-input-multiple output (FD-MIMO) wireless cellular systems. The FD-MIMO cookbooks employ channel state information reference signals (CSI-RS). The codebook designs are used in beamforming CSI-RSs by the enhanced nodeB (eNB), where the CSI-RS is sent to the user equipment (UE), enabling the UE to perform channel estimation. The codebooks support beam selection, co-phasing between polarizations, and beam combining.
    Type: Grant
    Filed: December 24, 2015
    Date of Patent: June 9, 2020
    Assignee: Apple Inc.
    Inventors: Alexei Davydov, Yuan Zhu, Hong He
  • Patent number: 10673508
    Abstract: This application provides a channel state information feedback method, user equipment, and a base station. A base station configures N first reference signal resources for UE, and sends the N first reference signal resources to the UE. The UE feeds back the CSI of the M first reference signal resources in a horizontal dimension and the M pieces of first reference signal resource indication information to the base station. This overcomes a disadvantage that only channel state information in a horizontal dimension is fed back in conventional channel estimation.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: June 2, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Kunpeng Liu, Xueru Li
  • Patent number: 10666329
    Abstract: A method and a network system capable of enhanced transmission of data signals in a multiple-input multiple-output (MIMO) communication system using a double-layer coordinated beamforming are disclosed. A first layer precoding matrix is obtained from long-term channel state information between user equipment and network equipment, and a second layer precoding matrix obtained from the first layer precoding matrix and from real-time channel state information between the user equipment and the network equipment. The real-time channel state information for the second layer precoding matrix determination includes a predetermined signal-to-interference-plus-noise ratio (SINR), and/or a predetermined power value associated with a single antenna of the user equipment, which are used as optimization parameters. The first and second layer precoding matrices are combined for the double-layer coordinated beamforming.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: May 26, 2020
    Assignee: Orange
    Inventors: Xiaoyu Wang, Jie Mei, Kan Zheng
  • Patent number: 10666466
    Abstract: A semiconductor integrated circuit includes a pair of differential signal lines including first and second signal lines, a first comparator, and a second comparator. The first comparator is configured to output at least one of a first signal corresponding to a difference between a potential of a first input node and a potential of a second input node, and a second signal corresponding to a difference between a potential of a third input node and a potential of a fourth input node. The second comparator is configured to output at least one of a third signal corresponding to a difference between a potential of a fifth input node and a potential of a seventh input node, and a fourth signal corresponding to a difference between a potential of a sixth input node and a potential of a eighth input node.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: May 26, 2020
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Yuji Satoh, Yutaka Shimizu
  • Patent number: 10667270
    Abstract: According to some embodiments, a method in a wireless network element of transmitting a transport block comprises determining a modulation coding scheme for a transmission of the transport block; determining a category type of a wireless device that will transmit or receive the transport block; determining, using the category type of the wireless device, an encoding soft buffer size (NIR) for the transport block; adjusting, using the modulation coding scheme, the encoding soft buffer size (NIR) by a factor (KH); encoding the transport block according to the determined modulation coding scheme and the adjusted encoding soft buffer size; and transmitting the transport block. In particular embodiments, the determined modulation coding scheme is 256 Quadrature Amplitude Modulation (256QAM) and the factor (KH) is 4/3.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: May 26, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Daniel Larsson, Jung-Fu Cheng, Yu Yang, Meng Wang
  • Patent number: 10666477
    Abstract: An apparatus and method for broadcast signal frame using layered division multiplexing are disclosed. An apparatus for generating broadcast signal frame according to an embodiment of the present invention includes a combiner configured to generate a multiplexed signal by combining a core layer signal and an enhanced layer signal at different power levels; a power normalizer configured to reduce the power of the multiplexed signal to a power level corresponding to the core layer signal; a time interleaver configured to generate a time-interleaved signal by performing interleaving that is applied to both the core layer signal and the enhanced layer signal; and a frame builder configured to generate a broadcast signal frame including a preamble for signaling, type information of Physical Layer Pipes (PLPs) and time interleaver information shared by the core layer signal and the enhanced layer signal.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: May 26, 2020
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jae-Young Lee, Sung-Ik Park, Sun-Hyoung Kwon, Heung-Mook Kim
  • Patent number: 10666350
    Abstract: A data transmission method of a source node in a cooperative communication system includes: performing a beamforming to a relay node; transmitting data to the relay node; performing a beamforming to a destination node; and transmitting data to the destination node.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: May 26, 2020
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Kap-Seok Chang, Woo-Yong Lee, Kyeongpyo Kim, Hyoung-Jin Kwon, Hyun-Kyu Chung
  • Patent number: 10651921
    Abstract: A method for signal transmission, a network device, and a terminal device are provided. The method includes: a network device generates beam-specific information corresponding to each of multiple beams, wherein first beam-specific information of a first beam of the multiple beams is used for indicating a configuration parameter of the first beam, and the configuration parameter of the first beam is used for a terminal device in coverage of the first beam to determine system information of the first beam; the network device sends the corresponding beam-specific information to terminal devices in the same cell through each beam.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: May 12, 2020
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD
    Inventor: Hai Tang
  • Patent number: 10647959
    Abstract: The invention provides polymer scaffolds for cell-based tissue engineering.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: May 12, 2020
    Assignee: President and Fellows of Harvard College
    Inventors: David J. Mooney, Jaeyun Kim, Sidi A. Bencherif, Weiwei Aileen Li
  • Patent number: 10652921
    Abstract: Techniques are described for wireless communication. A first method may include classifying feedback received for a first downlink transmission over a shared radio frequency spectrum band; identifying an interference parameter for a subsequent downlink transmission; and scheduling the subsequent downlink transmission based at least in part on feedback classified in a feedback category associated with the identified interference parameter for the subsequent downlink transmission. The feedback may be classified in one of a plurality of feedback categories, and the classifying may be based at least in part on an interference parameter for the first downlink transmission. A second method may include identifying an interference parameter for a first downlink transmission received over a shared radio frequency spectrum band; generating feedback for the first downlink transmission; and sending, to a base station, the feedback along with an indication of the interference parameter.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: May 12, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Xiaoxia Zhang, Tao Luo, Arumugam Chendamarai Kannan, Zhengwei Liu
  • Patent number: 10645742
    Abstract: Methods and apparatuses are described in which an unlicensed spectrum is used for Long Term Evolution (LTE) communications. A first method includes comparing past transmission activity on an unlicensed spectrum to an activity threshold, transmitting a first subframe type in the unlicensed spectrum during a next active transmission when the past transmission activity is greater than the activity threshold, and transmitting a second subframe type in the unlicensed spectrum during a next active transmission when the past transmission activity is lesser than the activity threshold, the second subframe type comprising a more robust subframe type than the first subframe type. A second method includes generating one or both of PUCCH signals and PUSCH signals based on interleaved signals that increase nominal bandwidth occupancy in an unlicensed spectrum, and transmitting the generated signals in the unlicensed spectrum. A third method includes receiving the PUCCH signals and the PUSCH signals.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: May 5, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Naga Bhushan, Durga Prasad Malladi, Yongbin Wei, Peter Gaal, Tao Luo, Tingfang Ji, Gavin Bernard Horn, Wanshi Chen, Aleksandar Damnjanovic
  • Patent number: 10644737
    Abstract: Aspects of the present disclosure provide techniques for using cyclic-shifts in code division multiplexing to shift transmitted signals (e.g., reference signals, control signals, and/or data) from different antenna ports of the transmitting device. Particularly, for multiple-input multiple-output (MIMO) systems that multiply the capacity of a radio link by using multiple transmit and receive antennas to exploit multipath propagation, aspects of the present disclosure minimize interference at the receiving device by separating the signals from different antenna ports based on the channel impulse response (or delay spread) of each antenna port of the channel. In some examples, the transmitting device may maximize resource utilization by interleaving the reference signals, control signals, and/or data from a plurality of antenna ports while maintaining adequate spacing between each signal.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: May 5, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Alexandros Manolakos, June Namgoong, Yang Yang, Jing Jiang
  • Patent number: 10644917
    Abstract: An OFDM transmission apparatus performs transmission using an orthogonal frequency division multiplexing scheme in one or a plurality of frequency bands and includes a symbol multiplexing unit to multiply a column vector containing a first number of modulated symbols generated by primary modulation in a frequency domain, by a precoding matrix having as many rows and columns as the first number to generate a multiplexed symbol group containing the first number of multiplexed symbols each containing a second number of the modulated symbols that are multiplexed, where the first number is two or more, and the second number is equal to or more than two and equal to or less than the first number; and a subcarrier allocation unit to allocate the multiplexed symbols contained in the multiplexed symbol group to different subcarriers.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: May 5, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kanako Yamaguchi, Kaoru Tsukamoto
  • Patent number: 10644732
    Abstract: A method for communication includes determining unintended beam direction information based on at least one of a location of a device that may be affected by energy emitted from a communication device, or an output power level allowed to radiate from the communication device, and limiting radiation of a communication beam from the communication device in a direction based on the unintended beam direction information.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: May 5, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Vasanthan Raghavan, Junyi Li
  • Patent number: 10637548
    Abstract: A system and methods are provided for reducing radio interference in a cellular network comprising a plurality of Base Stations (BSs) and a plurality of User Equipment devices (UEs). The method includes receiving at a base station (BS) serving a user equipment device (UE) a feedback signal, estimated by the UE in response to a radio signal, wherein the feedback signal includes a quantized representation of a direct channel of the BS. The method further includes determining at the BS a pre-coding matrix having a smaller number of dimensions than a number of antennas of the BS and applying the pre-coding matrix to filter subsequent radio signals transmitted by the BS.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: April 28, 2020
    Assignee: BAR-ILAN UNIVERSITY
    Inventors: Yair Noam, Benjamin Moshe Zaidel, Naama Kimelfeld Shahak
  • Patent number: 10637540
    Abstract: The described technology is generally directed towards selecting a compression and/or quantization function for communicating data to and from an analog front end of a radio unit of a base station coupled to a digital baseband processor of a central unit of the base station. The compression function and/or quantization function can be adaptively and/or otherwise selected based on various criteria, such as the amount of data being transmitted, whether the data corresponds to reference signals or other data, the network architecture (e.g., digital beamforming or hybrid beamforming) in use, and so on.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: April 28, 2020
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Aditya Chopra, Arunabha Ghosh, Milap Majmundar, SaiRamesh Nammi
  • Patent number: 10637547
    Abstract: In a closed-loop wireless communication system, a codebook-based feedback mechanism is provided to enable non-unitary precoding for multi-stream transmission, where in each stream is optimized with suitable transmission power allocation and AMC. The codebook-based feedback mechanism uses a precoding codebook having a power allocation matrix which is constrained to specify that beamforming always applies full power to a predetermined beam. With this constraint, a one-bit power allocation feedback index may be used to switch between beamforming and spatial multiplexing.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: April 28, 2020
    Assignee: Apple Inc.
    Inventors: Jayesh H. Kotecha, Kaibin Huang
  • Patent number: 10637544
    Abstract: Systems, methods, computer program products, and devices reduce computational processing performed by at least one computer processor that computes an eigensystem from a first data set; computes updated eigenvalues that approximate an eigensystem of at least a second data set based on the eigensystem of the first data set; and evaluates a plurality of features in each of the first and at least second data sets using a cost function; wherein reducing the computational processing of the at least one computer processor is achieved by at least one of selecting the cost function to comprise fewer than the total number of eigenvalues and employing a coarse approximation of the eigenvalues to de-select at least one of the data sets. This is especially useful for learning and/or online processing in an artificial neural network.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: April 28, 2020
    Assignee: Genghiscomm Holdings, LLC
    Inventor: Steve Shattil
  • Patent number: 10630355
    Abstract: A method and a device for determining parameters of a precoder in a wireless communication system are disclosed. According to one aspect, a method includes selecting a subset of beams corresponding to a plurality of orthogonal beams; obtaining power levels of the selected subset of beams for generating a first factor of the precoder and obtaining phases of the selected subset of beams for generating a second factor, wherein the first factor and the second factor are part of the parameters of the precoder.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: April 21, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Sebastian Faxér, Svante Bergman
  • Patent number: 10630510
    Abstract: Methods and systems relating to topics in space-polarization modulated communications. The topics include: adaptive space-polarization modulated communications using channel state information at the transmitter; adaptive decision boundaries at the receiver; carrier frequency offset estimation for multi-carrier modulation schemes; transmission of analog images using polarization and coherence dispersion information; and reduction of peak-to-average power ratio in multi-carrier modulation schemes.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: April 21, 2020
    Assignee: UNIVERSITY OF NOTRE DAME DU LAC
    Inventors: Thomas Pratt, Robert Daniel Kossler, Benjamin Strycker, Jeffrey G. Mueller
  • Patent number: 10630445
    Abstract: The present invention provides methods and apparatuses for implementation of cyclic prefix (CP) and demodulation reference signal (DMRS) in 2 sub-carrier pi/2 binary phase shift keying (BPSK) modulation in a communication system. DMRS symbols are interleaved with data-carrying symbols and configured such that they are alternatingly transmitted on different ones of the two sub-carriers. When a DMRS symbol is transmitted on one sub-carrier, the other sub-carrier may be unused. In implementing CP, phase rotations may be applied to modulation symbols, such that each concurrently transmitted pair of symbols is subjected to a same phase rotation. The phase rotation can be derived based on an average frequency of the two (e.g. adjacent) sub-carriers in use. The phase rotations can be updated recursively, and the update multiplied by a scaling factor.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: April 21, 2020
    Assignee: SIERRA WIRELESS, INC.
    Inventors: Gustav Gerald Vos, Steven John Bennett
  • Patent number: 10630357
    Abstract: According to various aspects, techniques to enable implicit and/or explicit transmit (Tx) beamforming in a wireless personal area network are provided. In particular, the implicit transmit beamforming may be enabled during certain events, frames, and/or other conditions when a channel between a beamformer and a beamformee is reciprocal (i.e., packets are received and transmitted on the same frequency). In such cases, the beamformer may estimate channel state information (CSI) based on a packet received from the beamformee and use the estimated CSI to steer a beam in a direction towards the beamformee. In use cases that implement explicit transmit beamforming, the beamformee may estimate the CSI based on a packet received from the beamformer and provide the estimated CSI to the beamformer, which may then use the estimated CSI received from the beamformee to steer a beam in a direction towards the beamformee.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: April 21, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Le Luong, Anssi Haverinen, Yoshiro Fukuoka, Paul Denboer, Huibert Denboer, Joel Linsky, Thomas Cargill
  • Patent number: 10631288
    Abstract: Provided are a method for beamforming training and an apparatus using the same. An STA receives a beacon frame from an AP during a BTI. The STA transmits SSW frames during an A-BFT. The beacon frame comprises an A-BFT length indicating the number of a plurality of SSW slots included in the A-BFT, a FSS field indicating the number of the SSW frames allowed in one SSW slot among the plurality of SSW slots, and information about the type of the SSW frames used in one SSW slot. The information about the type of the SSW frames indicates that the SSW frames are determined to be one from among first type SSW frames and second type SSW frames. The second type SSW frames have a smaller size than that of the first type SSW frames. If the SSW frames are determined to be the second type SSW frames, the FSS field indicates the number of the second type SSW frames that can be transmitted in one SSW slot.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: April 21, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Saehee Bang, Jinmin Kim, Jinsoo Choi
  • Patent number: 10624037
    Abstract: Provided is a wireless communication apparatus for a non-orthogonal multiple access communication system. The apparatus comprises: a power adjustment unit which is used, for at least some of user equipment included in the communication system, dynamically adjusting the sending power of each of the at least some of the user equipment for each sub-carrier according to channel state information about the communication system, in order that the at least some of the user equipment perform uplink data transmission on corresponding sub-carriers with the adjusted sending power. According to the disclosed apparatus, method and system, at least one of the following technical benefits could be obtained: increasing the channel capacity of the communication system; reducing the bit error rate during the communication; and reducing the interference between corresponding user equipment in the communication system.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: April 14, 2020
    Assignee: SONY CORPORATION
    Inventors: Jian Dang, Zaichen Zhang, Liang Wu, Chao Wei, Yu Shi
  • Patent number: 10624018
    Abstract: Systems and methods are described for selecting relay nodes for Single-User Multiple-Input-Multiple Output (SU-MIMO). A channel orthogonality and Signal-to-Interference-Plus-Noise Ratio (SINR) of a plurality of wireless devices located in a geographic area of an access node is determined. A relay-capable status of the plurality of wireless devices is determined. Non-relay capable wireless devices located in the geographic area are excluded from SU-MIMO. From the plurality of wireless devices, relay-capable wireless devices are selected for SU-MIMO. The selected relay-capable wireless devices are prioritized for SU-MIMO based on a channel orthogonality and SINR meeting a set threshold.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: April 14, 2020
    Assignee: Sprint Spectrum L.P.
    Inventors: Siddharth Oroskar, Jasinder Singh, Nitesh Manchanda, Rajil Malhotra
  • Patent number: 10624039
    Abstract: A method for operating a transmission point includes determining power offset levels of data layers assigned to at least one reception point, encoding a first data stream associated with a first data layer to produce a first encoded data, encoding a second data stream associated with a second data layer to produce a second encoded data, and transmitting the first and second encoded data at different power offset levels.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: April 14, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Mahmoud Taherzadeh Boroujeni, Alireza Bayesteh, Hosein Nikopour
  • Patent number: 10623212
    Abstract: Methods and apparatus for shaping and filtering quantization errors conjointly in space and time to produce a higher-precision output in a spatially and temporally oversampled array. A space-time error-shaping array system has an array of sensors, each sensor producing a temporal signal comprising quantized waveforms. A multi-input multiple-output (MIMO) discrete-time filter structure with multiple inputs, each coupled to a sensor of the array of sensors, shapes quantization errors of the array of sensors on the basis of temporal aspects of the quantized waveforms conjointly with spatial aspects of the quantized waveforms.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: April 14, 2020
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Andrew Carl Singer, Ryan Michael Corey
  • Patent number: 10613189
    Abstract: A location information is based on a coordinate grid where different cell sizes could be supported in order to adapt to the accuracy of the available positioning system. The grid is divided into areas of fixed latitude width such that, within each area, and for a fixed minimal cell size, the variation of the geographical area covered by the cells is tolerated with respect to a certain parameter of the service parameter (e.g. the transmission range). Within each area the cells are numbered uniquely along the latitude lines by an x-counter and the longitude line by a y-counter. In order to transmit its location information, the sender uses a positioning method with a certain accuracy, decides on a cell size (among a fixed number of available fixed sizes), determines the x and y counter of the cell where he is located and includes in the message an indication of the chosen cell size and equal numbers of LSBs for each of the counters.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: April 7, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Noamen Ben Henda, Fredrik Lindblom
  • Patent number: 10613927
    Abstract: A method for fast calculation of a frame error rate (FER) of an error correcting code (ECC) soft decoder using a soft read process includes determining an MI-FER conversion data structure based on a relationship between mutual information (MI) of input channels and output channels of a memory, and FER of the ECC soft decoder, and decoding an encoded data codeword stored in a memory page of the memory and read using a soft read process. The method further includes generating a set of joint probability values using the information from the soft read process and data indicating true bit values for the data codeword, determining an MI value using the set of joint probability values, and determining an FER estimate using the MI-FER conversion data structure.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: April 7, 2020
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: David Malcolm Symons, Paul Edward Hanham, Francesco Giorgio
  • Patent number: 10615930
    Abstract: Some demonstrative embodiments include apparatus, system and method of communicating a transmission according to a symbol block structure and Guard Interval (GI) scheme. For example, an apparatus may include logic and circuitry configured to cause a wireless station to generate a plurality of Single Carrier (SC) blocks according to a SC block structure corresponding to a GI type of a plurality of GI types, a SC block of the plurality of SC blocks including a GI followed by a data block, the GI including a Golay sequence having a length based at least on the GI type, a length of the data block is based at least on the GI type; and to transmit a SC transmission over a millimeter Wave (mmWave) frequency band based on the plurality of SC blocks.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: April 7, 2020
    Assignee: Intel Corporation
    Inventors: Artyom Lomayev, Iaroslav P. Gagiev, Alexander Maltsev, Michael Genossar, Carlos Cordeiro
  • Patent number: 10614609
    Abstract: Methods and apparatus of processing 360-degree virtual reality images are disclosed. According to one method, a 2D (two-dimensional) frame is divided into multiple blocks. The multiple blocks are encoded or decoded using quantization parameters by restricting a delta quantization parameter to be within a threshold for any two blocks corresponding to two neighboring blocks on a 3D sphere. According to another embodiment, one or more guard bands are added to one or more edges that are discontinuous in the 2D frame but continuous in the 3D sphere. Fade-out process is applied to said one or more guard bands to generate one or more faded guard bands. At the decoder side, the reconstructed 2D frame is generated from the decoded extended 2D frame by cropping said one or more decoded faded guard bands or by blending said one or more decoded faded guard bands and reconstructed duplicated areas.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: April 7, 2020
    Assignee: MEDIATEK INC.
    Inventors: Cheng-Hsuan Shih, Chia-Ying Li, Ya-Hsuan Lee, Hung-Chih Lin, Jian-Liang Lin, Shen-Kai Chang
  • Patent number: 10616880
    Abstract: In a wireless communications system including a first transmission point and a second transmission point, a wireless communications method implemented in the first transmission point supporting coordinated multi-point transmission and reception (CoMP) is disclosed. The wireless communications method comprises transmitting to the second transmission point one or more CoMP hypothesis sets, and transmitting to the second transmission point a benefit metric corresponding to each CoMP hypothesis set, wherein the benefit metric can be a negative value. Other methods, systems, and apparatuses also are disclosed.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: April 7, 2020
    Assignee: NEC Corporation
    Inventors: Narayan Prasad, Mohammad Khojastepour, Mustafa Arslan, Karthikeyan Sundaresan, Sampath Rangarajan
  • Patent number: 10615856
    Abstract: A method and a device for sending parameters of a precoder in a wireless communication system are disclosed. According to one aspect, the method comprises: sending, to a network node, an indication of a subset of beams selected from a plurality of orthogonal beams and an indication of power levels of the selected subset of beams, for a first frequency granularity; and sending, to the network node, an indication of phases of the selected subset of beams, for a second frequency granularity, wherein the indication of the selected beams, the indication of the power levels of the selected subset of beams and the indication of the phases of the selected subset of beams are part of the parameters of the precoder.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: April 7, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Sebastian Faxér, Svante Bergman
  • Patent number: 10615916
    Abstract: Failed transport blocks can be retransmitted when the number of layers is different compared to the number of layers for re-transmission. Mapping tables can be used for retransmitting the failed packets when a user equipment reported rank is different from the transmitted rank. In addition, an indication can be sent to the user equipment to indicate the failed transport blocks when the network decides to use a different codeword for transmitting a failed packet.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: April 7, 2020
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: SaiRamesh Nammi, Arunabha Ghosh
  • Patent number: 10608789
    Abstract: A method of transmitting and receiving signals in a wireless local area network (WLAN) system and a device for the same are provided. More particularly, there are provided a method and a device for the same in which a station operating in an orthogonal frequency division multiplexing (OFDM) mode transmits and receives signals through two aggregated channels.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: March 31, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Sunwoong Yun, Jinmin Kim, Sungjin Park, Jinsoo Choi
  • Patent number: 10609752
    Abstract: A method of reestablishing a radio link which is performed by a wireless communication device that communicates with a peer node includes monitoring quality of a radio link used for communication with the peer node, determining whether radio link reestablishment is needed when the quality of the radio link is less than or equal to a reference value, determining a beam search parameter using at least one of information on the activation status of the radio link and mobility information of the peer node, performing a beam search necessary for radio link reestablishment according to the beam search parameter, and reestablishing a radio link with the peer node using a found beam.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: March 31, 2020
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Soo Jung Jung, Seung Kwon Baek