Quadrature Amplitude Modulation Patents (Class 375/261)
  • Patent number: 11065963
    Abstract: A diagnostic system for a DC-DC voltage converter includes a microcontroller having a first diagnostic handler application and first and second applications. The first application sets a first non-recoverable diagnostic flag associated with the DC-DC voltage converter to a first encoded value having each nibble thereof selected from an odd Karnaugh set of binary values. The second application sets a second non-recoverable diagnostic flag to a second encoded value having each nibble thereof selected from an even Karnaugh set of binary values. The first diagnostic handler application sets a first master non-recoverable diagnostic flag to a first encoded fault value if the first non-recoverable diagnostic flag is equal to a second encoded fault value, or the second non-recoverable diagnostic flag is equal to a third encoded fault value.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: July 20, 2021
    Assignee: LG Chem, Ltd.
    Inventor: Kerfegar K. Katrak
  • Patent number: 11070415
    Abstract: An FBMC equalization and demodulation unit and corresponding method to process an FBMC signal includes FBMC symbols, each FBMC symbol comprising data mapped over M subcarriers, oversampled by a factor K, filtered by a prototype filter and transposed in the time-domain, comprising: a frequency domain transposition unit, configured to transpose a block of P*KM samples comprising at least one FBMC symbol into frequency domain samples, where P is an integer greater than one, an equalizer unit configured to multiply the frequency domain samples by one or more coefficients computed from a propagation channel estimate, at least one circular convolution unit, configured to perform P circular convolutions between subsets of the equalized samples and a frequency domain response of a frequency shifted version of the prototype filter, and adders, to sum corresponding outputs of each of the P circular convolutions.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: July 20, 2021
    Assignee: INSTITUT MINES TELECOM-IMT ATLANTIQUE-BRETAGNE-PAYS DE LA LOIRE
    Inventors: Jérémy Nadal, Charbel Abdel Nour, Amer Baghdadi
  • Patent number: 11050507
    Abstract: A coding and modulation apparatus and method are presented, particularly for use in a system according to IEEE 802.11. The apparatus comprises an encoder configured to encode input data into cell words according to an LDPC code and a modulator configured to modulate said cell words into constellation values of a non-uniform constellation and to assign bit combinations to constellation values of the used non-uniform constellation. The modulator is configured to use a non-uniform constellation and bit labeling from one of the several groups of constellations, which constellation show quadrant and octant symmetry.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: June 29, 2021
    Assignee: SONY CORPORATION
    Inventors: Thomas Handte, Dana Ciochina, Nabil Sven Loghin
  • Patent number: 11044048
    Abstract: The disclosure relates in some aspects to information encoding. Information encoding may involve puncturing bits of a codeword or repeating bits of a codeword. The disclosure relates in some aspects to selecting a puncturing or repetition pattern. In some aspects, a puncture pattern for data encoding is selected based on a criterion that the output and the repetition input of an XOR are not erased. In some aspects, a repetition pattern for data encoding is selected based on a criterion that repetition not be applied for the output and the repetition input of an XOR.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: June 22, 2021
    Assignee: QUALCOMM INCORPORATED
    Inventors: Hari Sankar, Gabi Sarkis, Changlong Xu, Alexei Gorokhov, Jing Jiang, Joseph Binamira Soriaga, Jilei Hou
  • Patent number: 11032113
    Abstract: Examples herein disclose apparatus and systems for hybrid vector based polar modulator schemes that may use a series of polar modulators to create a system of vector modulators. The resulting polar response may be de-composed into the sum of the polar modulators. This approach allows accurate phase modulation in two such links without the need for high resolution AM part to cover the IQ plane of a QAM modulator.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: June 8, 2021
    Assignee: QUALCOMM INCORPORATED
    Inventors: Magnus Olov Wiklund, Emanuele Lopelli
  • Patent number: 11026253
    Abstract: Aspects of the disclosure relate to mechanisms for mapping a physical downlink control channel (PDCCH) across multiple transmission configuration indication (TCI) states. In some examples, the PDCCH may then be encoded using a common mother polar code for each of a first set of control channel elements (CCEs) mapped to a first TCI state and a remaining set of CCEs mapped to a second TCI state. First and second portions of the encoded PDCCH may then be transmitted, such that the first portion includes the first set of CCEs, and the second portion includes the remaining set of CCEs.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: June 1, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Kiran Venugopal, Makesh Pravin John Wilson, Tianyang Bai, Tao Luo
  • Patent number: 11005699
    Abstract: A TSN-based distributed antenna system including a headend unit, one or more TSN switches, and one or more remote units and a fronthaul transport network constituted by the headend unit, the TSN switch, and the remote unit is provided. The packet-based fronthaul network constituted by the headend unit, the TSN switch, and the remote unit transmits traffic in a time-deterministic manner while minimizing packet loss through Ethernet to which TSN standards are applied.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: May 11, 2021
    Assignee: SOLID, INC.
    Inventors: Dong Hee Kwon, Hoo Pyo Hong, Young Man Cho, Dae Young Kim, Hyun Jung Kim
  • Patent number: 10958291
    Abstract: The present technology relates to a transmission method and a reception device capable of ensuring good communication quality in data transmission by using an LDPC code. In group-wise interleaving, an LDPC code with a code length N of 69120 bits is interleaved in units of bit groups of 360 bits. In group-wise deinterleaving, an arrangement of the LDPC code after the group-wise interleaving is returned to an original arrangement. The present technology can be applied, for example, to the case of performing data transmission by using an LDPC code or the like.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: March 23, 2021
    Assignee: SONY CORPORATION
    Inventors: Yuji Shinohara, Makiko Yamamoto
  • Patent number: 10958379
    Abstract: Aspects of the present disclosure relate to retransmissions of data within wireless communication networks. For a retransmission, at least a portion of the encoded bits of an original transmission may be mapped to different bit locations in one or more modulated symbols based on a non-random mapping rule. In some examples, the encoded bits of a symbol may be reversed within the symbol for a retransmission. In other examples, the first and last encoded bits within a symbol may be switched for a retransmission. Other non-random mapping rules, such as a bit location offset, may also be used to map encoded bits to different bit locations in the modulated symbol within a retransmission.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: March 23, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Hobin Kim, Hari Sankar, Alexei Yurievitch Gorokhov, Michael Lee McCloud, Joseph Binamira Soriaga
  • Patent number: 10951454
    Abstract: Device, methods and systems for recoding in wireless systems using orthogonal time frequency space multiplexing are described. An exemplary method for transmitting wireless signals includes mapping data to generate a quadrature amplitude modulation (QAM) signal in a delay Doppler domain, determining a perturbation signal to minimize expected interference and noise, perturbing the QAM signal with the perturbation signal, thereby producing a perturbed signal, generating a pre-coded signal by pre-coding, using a linear pre-coder, the perturbed signal, and transmitting the pre-coded signal using an orthogonal time frequency space modulation signal scheme.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: March 16, 2021
    Assignee: Cohere Technologies, Inc.
    Inventor: James Delfeld
  • Patent number: 10931316
    Abstract: A radio frequency transceiver is disclosed herein. The radio frequency transceiver comprises a transmitter, a receiver comprising a full complex mixer capable of operating as a frequency down-converter, and an in-phase and quadrature (IQ) imbalance calibration module. The IQ imbalance calibration module is connected with (e.g., only connected with) the transmitter. The IQ imbalance calibration module is arranged calibrate the transmitter to reduce its IQ imbalance. The IQ imbalance calibration module is not arranged calibrate the receiver. Use of the full complex mixer in the receiver eliminates the need for calibrating the receiver.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: February 23, 2021
    Inventor: Mats Carlsson
  • Patent number: 10917170
    Abstract: Disclosed herein is a method for transmitting digital data in a super channel, in which a set of carriers are packed in a predetermined bandwidth. The set of carriers comprises higher and lower edge carriers having the highest and lowest wavelengths, respectively, among said set of earners, wherein data is transmitted via the higher and lower edge carriers using a corresponding modulation format, each modulation format using a constellation diagram comprising a number of symbols, wherein a binary address is associated with each symbol.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: February 9, 2021
    Assignee: XIEON NETWORKS S.a.r.l.
    Inventors: Danish Rafique, Stefano Calabró
  • Patent number: 10911051
    Abstract: An electromagnetic energy delivery system includes a set of radio frequency channels; each channel configured to receive a set of reference signals. Each channel further includes a compensation component and a phase-locked loop component. The compensation component can be configured to determine a phase difference between at least a subset of the reference signals; compare the phase difference with a predetermined reference phase difference; and determine a reference signal compensation offset value based on the comparison of the phase difference and the predetermined reference phase difference. The phase-locked loop component can be configured to generate a phase-shifted signal wherein the phase shift is based on at least the reference signal compensation offset value.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: February 2, 2021
    Assignees: Whirlpool Corporation, Panasonic Corporation
    Inventors: Franco Brindani, Andrea Gallivanoni
  • Patent number: 10862603
    Abstract: A base station serving as a transmission apparatus includes a plurality of transmission antennas capable of forming beams directed to a plurality of terminals, which are reception apparatus, and a precoder configured to perform outer precoding on transmission signals transmitted from the plurality of transmission antennas. The plurality of terminals include at least one first reception apparatus, which are transmission destinations of the transmission signals, and second reception apparatus, which are reception apparatus other than the first reception apparatus. The precoder performs outer precoding on the transmission signals transmitted from the plurality of transmission antennas so that received power in the second reception apparatus among the plurality of reception apparatus is equal to or less than a threshold.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: December 8, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hiroshi Nishimoto, Hiroki Iura, Akinori Taira
  • Patent number: 10849075
    Abstract: The present disclosure discloses a method and a device for allocation of transmission power and a terminal, relating to the field of Internet of vehicles. The method includes: determining communication links having communication requirements at the current moment; acquiring a power request value corresponding to each of the communication links, and adding the power request value corresponding to each of the communication links to obtain an accumulated power value; when it is determined that the accumulated power value is greater than or equal to a preset power limit value, acquiring the service priority of each of the communication links, and allocating transmission power to each of the communication links according to the service priority.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: November 24, 2020
    Assignee: CLOUDMINDS (SHENZHEN) ROBOTICS SYSTEMS CO., LTD.
    Inventors: William Xiao-Qing Huang, Haitao Jiang, Zhenkai Wang
  • Patent number: 10833895
    Abstract: A device includes a receiver having analog front-end circuitry and a digital signal processing (DSP) circuit. The DSP circuit is configured to select one of a plurality of digital equalization (DEQ) filter options and to perform DEQ operations based on the selected DEQ filter option, wherein the DSP circuit is configured to select one of the plurality of DEQ filter options based on a channel length estimate and a plurality of different sets of DEQ filter coefficients predetermined for different channel lengths.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: November 10, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Raghu Ganesan, Kalpesh Laxmanbhai Rajai, Saravanakkumar Swaminathan Radhakrishnan
  • Patent number: 10833912
    Abstract: The present teaching relates to wireless Internet of Things. In one example, a time reversal client is disclosed. The time reversal client comprises a processor, a memory communicatively coupled with the processor, and a set of instructions, when executed by the processor based on the memory, that cause the time reversal client to perform the following steps: communicatively coupling with a time reversal server through a network, obtaining a set of channel state information (CSI), wherein the set of CSI is captured when at least one probing signal is sent from the wireless transmitter to the wireless receiver through a wireless multipath channel associated with a space, and causing the set of CSI to be sent to the time reversal server through the network.
    Type: Grant
    Filed: September 9, 2018
    Date of Patent: November 10, 2020
    Assignee: ORIGIN WIRELESS, INC.
    Inventors: Oscar Chi-Lim Au, Masato Marumo, Beibei Wang, Hung-Quoc Duc Lai, K. J. Ray Liu, Chen Chen, Qinyi Xu, Yi Han, Zhung-Han Wu, Feng Zhang, Zoltan Safar, Jeng-Feng Lee, Thomas Nelson Buttermore, Jr.
  • Patent number: 10826728
    Abstract: A wireless communication method for receiving an orthogonal time frequency space (OTFS) modulated signal includes receiving the OTFS signal over a wireless communication channel, dividing the receiving OTFS signal along a delay-dimension into a plurality of segments, performing, for each segment, channel estimation independent of channel estimation for other segments to generate a plurality of channel estimates, performing, for each segment, channel equalization using a corresponding channel estimate from the plurality of channel estimates to generate a channel-equalized symbol stream, and generating information bits from the channel-equalized symbol stream.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: November 3, 2020
    Assignee: Cohere Technologies, Inc.
    Inventors: Michail Tsatsanis, Christian Ibars Casas
  • Patent number: 10778497
    Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for communicating signals using a multi-dimensional symbol constellation. In one example, a process for modulating a carrier signal includes the actions of mapping data to symbols of a multi-dimensional symbol constellation that includes at least three dimensions, each dimension of the constellation represented by a respective modulation signal. The dimensions of the constellation include first and second dimensions each of which are represented by respective in-phase modulation values and quadrature phase modulation values of a quadrature amplitude modulation (QAM) signal, and a third dimension represented by a transpositional modulation (TM) signal. The method further includes modulating a carrier signal with the TM signal and the QAM signal.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: September 15, 2020
    Assignee: TM IP Holdings, LLC
    Inventors: Richard C. Gerdes, Harvey C. Woodsum
  • Patent number: 10778377
    Abstract: Methods, apparatuses and a user equipment for performing a Hybrid Automatic Repeat Request (HARQ) transmission in a downlink from a base station to at least one user equipment are provided. An exemplary method comprises receiving a HARQ feedback to a HARQ transmission performed with respect to a transport block. The method further comprises determining whether the HARQ feedback is an ambiguous HARQ feedback with respect to a negative acknowledgement or a discontinuous transmission. The method additionally comprises setting (S206) the ambiguous HARQ feedback as the negative acknowledgement or the discontinuous transmission based on the number of HARQ transmissions having been performed and the corresponding received HARQ feedbacks within a target number of HARQ transmissions counting from a first HARQ transmission. With the methods and apparatuses, the ambiguity of the HARQ feedback can be overcome and communication efficiency may be improved.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: September 15, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Yongquan Qiang, Hong Ren, Ping Yu, Feng Li, Yang Tian
  • Patent number: 10771305
    Abstract: Coding gains can be achieved by encoding binary data directly to multi-dimensional codewords, which circumvents QAM symbol mapping employed by conventional CDMA encoding techniques. Further, multiple access can be achieved by assigning different codebooks to different multiplexed layers. Moreover, sparse codewords can be used to reduce baseband processing complexity on the receiver-side of the network, as sparse codewords can be detected within multiplexed codewords in accordance with message passing algorithms (MPAs).
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: September 8, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Hosein Nikopour, Mohammadhadi Baligh
  • Patent number: 10768273
    Abstract: A method of orthogonal modulation of radar waves of a phase-modulated continuous wave radar system. The method includes selecting an equidistant bi-phased or multi-phased phase-modulation sequence, phase-modulating the continuous radar wave, and transmitting the orthogonal phase-modulated continuous radar wave towards a scene. The method includes generating a detection sequence (s) by applying an outer coding (H) to the phase-modulation sequence, selecting a communication range (C) in the complex number plane, based on the selected phase-modulation, generating a communication sequence (c) having a plurality of sequence members, mapping the communication sequence (c) into the communication range (C) by applying an injective mapping function (?) to the sequence members, and calculating a numerical product of members of the detection sequence (s) with members of an image of the mapped communication sequence (c).
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: September 8, 2020
    Assignees: IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A., UNIVERSITE DU LUXEMBOURG
    Inventors: Udo Schroder, Hans-Peter Beise, Thiemo Spielmann, Sayed Hossein Dokhanchi
  • Patent number: 10764199
    Abstract: A first device determines whether an indicator is configured to allow use of an increased value for an information unit pacing credit that is greater than a default value for the information unit pacing credit, where the information unit pacing credit indicates a number of information units that a second device is allowed to send to the first device without waiting for any additional response from the first device. In response to determining that the indicator is configured to allow use of the increased value for the information unit pacing credit that is greater than the default value for the information unit pacing credit, the first device adjusts the information unit pacing credit via a response sent from the first device to the second device, to the increased value that is greater than the default value.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: September 1, 2020
    Assignee: International Business Machines Corporation
    Inventors: Roger G. Hathorn, Bret W. Holley, Harry M. Yudenfriend
  • Patent number: 10742459
    Abstract: Provided is a transmission method that contributes to an increase in data reception quality when iterative detection is performed at a receive apparatus side. A transmit apparatus alternates between two types of modulation scheme that each shift amplitude and phase, performs mapping to constellation points according to a selected modulation scheme, and transmits a modulated signal obtained by mapping.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: August 11, 2020
    Assignee: SUN PATENT TRUST
    Inventors: Yutaka Murakami, Tomohiro Kimura, Mikihiro Ouchi
  • Patent number: 10743318
    Abstract: There is provided mechanisms for beam management in a cell. A method is performed by a network node. The method comprises performing a beam management procedure in a cell served by the network node. A mutually different number of antenna ports are used by the network node in each of at least two cell parts into which the cell is divided during the beam management procedure in the cell.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: August 11, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Andreas Nilsson, Fredrik Athley
  • Patent number: 10742471
    Abstract: A transmitting apparatus is disclosed. The transmitting apparatus includes an encoder to perform channel encoding with respect to bits and generate a codeword, an interleaver to interleave the codeword, and a modulator to map the interleaved codeword onto a non-uniform constellation according to a modulation scheme, and the constellation may include constellation points defined based on various tables according to the modulation scheme.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: August 11, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Se-ho Myung, Belkacem Mouhouche, Daniel Ansorregui Lobete, Kyung-joong Kim, Hong-sil Jeong
  • Patent number: 10735238
    Abstract: A filter bank multicarrier communication system is proposed. The system adopts the real-valued discrete Hartley transform for both multicarrier modulation and demodulation, rather than the complex-valued inverse discrete Fourier transform for multicarrier modulation and the discrete Fourier transform for multicarrier demodulation in conventional filter bank multicarrier schemes, so as to reduce implementation complexity and to enhance system performance.
    Type: Grant
    Filed: January 2, 2020
    Date of Patent: August 4, 2020
    Assignee: NATIONAL TSING HUA UNIVERSITY
    Inventors: Chin-Liang Wang, Hong-Shiuann Pan
  • Patent number: 10718811
    Abstract: A jitter measurement circuit includes an addition circuit to add a digital rectangular signal to an adjustment signal generated by a circuit that generates a first error signal based on a phase difference between a first clock signal or a data signal on which the first clock signal is superimposed and a second clock signal and generates the adjustment signal by filtering the first error signal, and a calculation circuit to calculate a first correlation value for representing an autocorrelation of the first error signal when the rectangular signal is not added to the adjustment signal, and a second correlation value for representing the autocorrelation when the rectangular signal is added to the adjustment signal, based on the first error signal and a second error signal obtained by delaying the first error signal by a variable delay amount, and output the first correlation value and the second correlation value.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: July 21, 2020
    Assignee: FUJITSU LIMITED
    Inventors: Joshua Liang, Ali Sheikholeslami, Sanroku Tsukamoto, Hirotaka Tamura, Hisakatsu Yamaguchi
  • Patent number: 10666479
    Abstract: A wireless communication method includes generating a pilot signal that is represented using a complex exponential signal having a first linear phase in a time dimension and a second linear phase in a frequency dimension; and transmitting the pilot signal over a wireless communication channel using transmission resources that are designated for pilot signal transmission in a legacy transmission network such as a Long Term Evolution (LTE) network.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: May 26, 2020
    Assignee: Cohere Technologies, Inc.
    Inventors: Ronny Hadani, Shlomo Selim Rakib, Anton Monk, Michail Tsatsanis, Yoav Hebron
  • Patent number: 10638485
    Abstract: A base station (BS) may transmit, and a user equipment (UE) may receive, a physical broadcast channel, such as a narrowband physical broadcast channel (NB-PBCH). In an interference-limited scenario with synchronous cells in a network, repetitions of a symbol being transmitted for a first physical broadcast channel of a first cell may collide with repetitions of a symbol being transmitted for a second physical broadcast channel of a second cell. This may result in the UE being unable to recover symbols of a physical broadcast channel. In some aspects, the BS may transmit, and the UE may receive, a physical broadcast channel including bits processed using a first processing stage, such as using first scrambling sequences, and a second processing stage, such as using second scrambling sequences, to compensate for the interference, thereby ensuring that the UE can recover the symbols of the physical broadcast channel.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: April 28, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Alberto Rico Alvarino, Kapil Bhattad, Xiao feng Wang, Juan Montojo, Wanshi Chen, Peter Gaal
  • Patent number: 10604240
    Abstract: A braking system architecture for aircraft, the architecture comprising: a brake including friction members and electromechanical actuators for exerting a braking torque on the wheel; a computer situated in the fuselage of the aircraft and arranged to produce first control signals; and a junction box situated on the undercarriage, the junction box being connected to the computer and to the electromechanical actuators, the junction box being configured to receive the first control signals and to use the first control signals to produce second control signals for application to the electromechanical actuators in order to control the electromechanical actuators.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: March 31, 2020
    Assignee: SAFRAN LANDING SYSTEMS
    Inventors: Brian Goyez, Dominique Onfroy, Olivier Frey
  • Patent number: 10585209
    Abstract: Methods and apparatus for estimating parameters of interest of a volume in an earth formation from a response spectrum representing radiation information obtained by a radiation detector in a borehole intersecting the volume responsive to nuclear phenomena in the volume, the response spectrum including spectral distortion resulting i) environmental conditions in the formation, or ii) deterioration of at least one component of the radiation detector. Methods include recovering an enhanced response spectrum estimating the true spectrum, comprising mitigating the spectral distortion by applying at least one contrast sharpening mask to the response spectrum. The at least one contrast sharpening mask may comprise at least a low pass smoothing mask subtracted from a unity mask which when applied to the response spectrum obtains high-frequency data and adds the high-frequency data to the response spectrum. The response spectrum may be a gamma ray spectrum.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: March 10, 2020
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventors: Feyzi Inanc, Toyli Anniyev, Maxim Vasilyev, David Chace
  • Patent number: 10582506
    Abstract: The invention relates to a network entity for managing communications of a plurality of communication devices within a communication network, a communication device of the plurality of communication devices being configured to transmit a multi-carrier communication signal comprising a plurality of sub-carriers, and to transmit an energy efficiency indicator indicating an energy efficiency specification of the communication device, the network entity comprising a communication interface being configured to receive the energy efficiency indicator over the communication network, and a processor being configured to determine a sub-carrier frequency spacing of the plurality of sub-carriers upon the basis of the energy efficiency indicator, and to generate a resource block indicator associated with the communication device, wherein the resource block indicator indicates the sub-carrier frequency spacing, wherein the communication interface is further configured to transmit the resource block indicator over the comm
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: March 3, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jian Luo, Zhao Zhao
  • Patent number: 10542456
    Abstract: A plurality of payload messages is communicated on a radio link of a cellular network between a terminal and an access node of the cellular network. Each one of the plurality of payload messages includes a data packet encoded according to a given redundancy version. The number of the plurality of payload messages may be dynamically and flexibly adjusted in some embodiments. Examples are given which may be applied for coverage enhancement in the Internet of Things or Machine Type Communication domain.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: January 21, 2020
    Assignee: Sony Corporation
    Inventors: Peter C. Karlsson, Rickard Ljung, Vanja Plicanic Samuelsson, Lars Nord
  • Patent number: 10511343
    Abstract: Wireless communication wherein channel estimation accuracy is improved while keeping the position of each bit in a frame, even when a modulation system having a large modulation multiple value is used for a data symbol. An encoding operation encodes and outputs transmitting data (bit string) and a bit converting operation converts at least one bit of a plurality of bits constituting a data symbol to be used for channel estimation, among the encoded bit strings, into ‘1’ or ‘0’. A modulating operation modulates the bit string inputted from the bit converting operation by using a single modulation mapper and a plurality of data symbols are generated.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: December 17, 2019
    Assignee: PANASONIC CORPORATION
    Inventors: Kenichi Miyoshi, Hidetoshi Suzuki, Katsuhiko Hiramatsu, Christian Wengerter, Alexander Golitschek Edler Von Elbwart
  • Patent number: 10511417
    Abstract: Methods and apparatus for multi-carrier communication with variable channel bandwidth are disclosed, where the time frame structure and the OFDM symbol structure are invariant and the frequency-domain signal structure is flexible. In one embodiment, a mobile station, upon entering a geographic area, uses a core-band to initiate communication and obtain essential information and subsequently switches to full operating bandwidth of the area for the remainder of the communication. If the mobile station operates in a wide range of bandwidths, the mobile station divides the full range into sub-ranges and adjusts its sampling frequency and its FFT size in each sub-range.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: December 17, 2019
    Assignee: INTELLECTUAL VENTURES II LLC
    Inventors: Xiaodong Li, Titus Lo, Kemin Li, Haiming Huang
  • Patent number: 10499048
    Abstract: The invention relates to a method and apparatus for evaluating a network and for predicting network performance for a higher order modulation by analyzing network signals modulated using a lower order modulation format. A margin index may be generated for the current or projected modulation formats based on displacement vectors for received symbols to indicate a margin remaining before a codeword error occurs to alert the network operator of potential performance issues before actual codeword errors occur.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: December 3, 2019
    Assignee: VIAVI SOLUTIONS INC.
    Inventors: Jim Walsh, Ching-Chang Liao
  • Patent number: 10491295
    Abstract: One or more operational parameters associated with pluggable optical transceivers are estimated to mitigate impairments to an optical signal caused by imperfections in the optical transceivers. A monitoring algorithm within a receiver signal processor may further use the estimated operational parameters associated with the pluggable optical transceivers to determine whether the transceivers are performing correctly. If the monitoring algorithm determines that either the transmitting or receiving optical transceiver is not functioning correctly, it may generate an alarm signal to notify a system administrator about the damaged device.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: November 26, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: Christopher R. Fludger, Soeren Gehrke, Johann B. Schiessl
  • Patent number: 10484219
    Abstract: A method of wireless communication by a user equipment includes determining an allocation of a set of tones in a symbol for conveying data. The method further includes determining to use m-ary phase shift keying (MPSK) to modulate the data onto a subset of tones of the set of tones. The method further includes modulating the data onto the subset of tones based on a mapping, wherein the mapping maps pairs of data values with a largest Hamming distance from each other to pairs of constellation points with a maximum Euclidean distance from each other.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: November 19, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Xiao feng Wang, Junyi Li, Zhi-Zhong Yu
  • Patent number: 10476713
    Abstract: Provided is a transmission method that contributes to an increase in data reception quality when iterative detection is performed at a receive apparatus side. A transmit apparatus alternates between two types of modulation scheme that each shift amplitude and phase, performs mapping to constellation points according to a selected modulation scheme, and transmits a modulated signal obtained by mapping.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: November 12, 2019
    Assignee: SUN PATENT TRUST
    Inventors: Yutaka Murakami, Tomohiro Kimura, Mikihiro Ouchi
  • Patent number: 10418972
    Abstract: The disclosure relates to a phase shifter having a first mode of operation and a second mode of operation, the phase shifter comprising a mixer stage configured to mix an oscillator signal with an analog signal to provide a phase shifted signal, switching circuitry and a controller arranged to provide the analog signal to the mixer stage as a voltage in the first mode of operation and as a current in the second mode of operation.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: September 17, 2019
    Assignee: NXP B.V.
    Inventors: Stephane Thuries, Cristian Pavao Moreira, Gilles Montoriol
  • Patent number: 10411941
    Abstract: Example embodiments provide a system and method for controlling power allocated to each of the constituent constellations that make up a superposed symbol constellation. In some examples, superposed constellations with adaptive power allocation are used in wireless local area networks (WLAN).
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: September 10, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Jung Hoon Suh, Jia Jia, Osama Aboul-Magd, Kwok Shum Au
  • Patent number: 10374772
    Abstract: In a MIMO detector, a slicing list detection scheme employs a complex plane to represent symbols in an alphabet, in which all decision regions are bounded by either vertical lines or horizontal lines. A K-best scheme accesses the complex plane and an offline-generated lookup table to detect elements of a received vector. At each level, the system prunes all but the K-best candidates from each surviving node through the slicing list detector.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: August 6, 2019
    Assignee: Georgia Tech Research Corporation
    Inventors: Sangwook Suh, John R. Barry
  • Patent number: 10327155
    Abstract: An electronic apparatus and a method in a wireless communication system are disclosed. The electronic apparatus comprises processing circuitry configured to train a beam adjustment model for adaptive beamforming with training data, so that the beam adjustment model outputs, for any movement path of a user equipment, beam information which enables a beam adjustment time interval meeting a performance requirement of the user equipment to be optimized. According to embodiments of the disclosure, the beam adjustment model is trained by taking the beam adjustment time interval as an optimization target, and adaptive beamforming is performed using the trained beam adjustment model, so that it is possible to significantly reduce system overhead and measurement and processing overhead for beam adjustment, while ensuring communication performance of the user equipment.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: June 18, 2019
    Assignee: SONY CORPORATION
    Inventors: Youping Zhao, Dongzhi Zhu, Chen Sun, Xin Guo
  • Patent number: 10312977
    Abstract: A receiver decodes received data streams based on a subset of candidate decoding constellation points. A first stage of a decoder of the receiver selects a subset of candidate decoding constellation points by identifying a decoded value for an initial data stream of the set of data streams. A second stage then applies MMSE error detection to each of the constellation points in the selected subset, and calculates an error metric based on the MMSE error detection results. The decoder selects the constellation points having the lowest error metrics, and uses the selected constellation points as an initial set of points for decoding the next data stream to be decoded.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: June 4, 2019
    Assignee: NXP USA, Inc.
    Inventors: Marius Octavian Arvinte, Wim Joseph Rouwet
  • Patent number: 10298286
    Abstract: Wireless communication wherein channel estimation accuracy is improved while keeping the position of each bit in a frame, even when a modulation system having a large modulation multiple value is used for a data symbol. An encoding operation encodes and outputs transmitting data (bit string) and a bit converting operation converts at least one bit of a plurality of bits constituting a data symbol to be used for channel estimation, among the encoded bit strings, into ‘1’ or ‘0’. A modulating operation modulates the bit string inputted from the bit converting operation by using a single modulation mapper and a plurality of data symbols are generated.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: May 21, 2019
    Assignee: Panasonic Corporation
    Inventors: Kenichi Miyoshi, Hidetoshi Suzuki, Katsuhiko Hiramatsu, Christian Wengerter, Alexander Golitschek Edler Von Elbwart
  • Patent number: 10284408
    Abstract: A method and apparatus for transmitting a Wi-Fi signal in a wireless communication system is provided. A device supporting long-term evolution in unlicensed spectrum (LTE-U) transmits a LTE signal, and transmits the Wi-Fi signal. The Wi-Fi signal may be transmitted by various methods, i.e. by being emulated in the LTE signal, by using a Wi-Fi processor which is embedded in a LTE processor, or by using a Wi-Fi processor which is individual to a LTE processor.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: May 7, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Yunjung Yi, Hyangsun You, Byounghoon Kim, Seonwook Kim, Joonkui Ahn, Kijun Kim
  • Patent number: 10277361
    Abstract: A method, an apparatus, and a system for transmitting information bits, where the method for transmitting information bits includes: dividing the information bits to be transmitted into at least two groups; encoding the information bits to be transmitted in each group; modulating the coded bits obtained by the encoding to obtain modulation symbols, in which each modulation symbol is obtained by using the modulation of the coded bits in the same group; and mapping and transmitting the modulation symbols. In this way, the receiving end easily reduces the algorithm complexity, thereby ensuring the performance of the receiving end.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: April 30, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Xiaofeng Chen, Yongxia Lv, Yan Cheng
  • Patent number: 10270641
    Abstract: The present disclosure relates to a pre-5th-generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-generation (4G) communication system, such as long-term evolution (LTE). An operation method of a transmitter in a wireless communication system is provided. The method includes applying a filter to data, mapping the data to which the filter is applied to at least one subcarrier, and transmitting the mapped data to a receiver. The filter is determined based on based on the allocated resource.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: April 23, 2019
    Assignees: Samsung Electronics Co., Ltd., POSTECH ACADEMY-INDUSTRY FOUNDATION
    Inventors: Chanhong Kim, Jubum Kim, Yeohun Yun, Joon Ho Cho
  • Patent number: RE48628
    Abstract: A method for transmitting information data by using a Reed-Muller coding scheme in a wireless communication system is disclosed. The method includes configuring a number of resource elements for transmitting the information data; dividing the information data to first information data and second information data if a bit size O of the information data is equal to or larger than a predetermined number; applying RM coding on each of the first information data and the second information data; concatenating the coded first information data and the coded second information data, and transmitting the concatenated data by using the predetermined number of resource elements, wherein a minimum value Q?min for the number of resource elements is defined by a sum of a minimum value Q?min_1 for the number of resource elements corresponding to the first information data and a minimum value Q?min_2 for the number of resource elements corresponding to the second information data.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: July 6, 2021
    Assignee: LG Electronics Inc.
    Inventors: Jiwoong Jang, Moonil Lee, Jaehoon Chung, Seunghee Han, Hyunsoo Ko