Generalized Orthogonal Or Special Mathematical Techniques Patents (Class 370/203)
  • Patent number: 10356784
    Abstract: Proposed is a control field including allocation information regarding a resource unit (RU) in a wireless local area network (WLAN) system supporting a plurality of RUs. The control field including the allocation information regarding the RU may be included in an uplink or downlink a physical layer (PHY) protocol data unit (PPDU), and may be designed in consideration of a plurality of frequency bands. A control field corresponding to a specific frequency band may be duplicated in a different frequency band. Further, the control field corresponding to the specific frequency band may be used for scheduling of a data field corresponding to the same frequency band and a data field corresponding to the different frequency band.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: July 16, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Eunsung Park, Dongguk Lim, Hangyu Cho, Jinsoo Choi
  • Patent number: 10340988
    Abstract: The present invention relates to a method for transmitting channel information to a base station in a wireless communication system, and a device therefor, the method comprising the steps of: receiving information on a user equipment (UE) group in which a specific UE is included; receiving, from a representative UE of the UE group, first control information comprising first beam information; determining second beam information on the basis of the first beam information; and transmitting, to a base station, second control information comprising differential information between the determined second beam information and the first beam information.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: July 2, 2019
    Assignee: LG Electronics Inc.
    Inventors: Heejin Kim, Jiwon Kang, Kitae Kim, Kilbom Lee, Kungmin Park
  • Patent number: 10341953
    Abstract: The disclosure provides a low power receiver. The receiver includes a first channel that receives an RF signal and generates an input signal. The receiver also includes a second channel and a packet detection circuit. The packet detection circuit is coupled to the first channel and the second channel. The packet detection circuit detects a valid packet in the input signal, and activates the second channel on detection of the valid packet.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: July 2, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Jaiganesh Balakrishnan, Sarma Sundareswara Gunturi
  • Patent number: 10333752
    Abstract: A method of multiplexing scaled numerology OFDM waveforms in an orthogonal frequency division multiplexing is presented. A first data can be encoded into a first numerology at a first set of tones and a second data can be encoded into a second numerology at second set of tones. A third data can be encoded into a guard band in such a way that the third data can be interpreted under either the first numerology or the second numerology.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: June 25, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Jing Jiang, Tingfang Ji, Peter Gaal, Brian Clarke Banister, Joseph Binamira Soriaga, Krishna Kiran Mukkavilli, John Edward Smee
  • Patent number: 10334457
    Abstract: Fiber, cable, and wireless data channels are typically impaired by reflectors and other imperfections, producing a channel state with echoes and frequency shifts in data waveforms. Here, methods of using OTFS pilot symbol waveform bursts to automatically produce a detailed 2D model of the channel state are presented. This 2D channel state can then be used to optimize data transmission. For wireless data channels, an even more detailed 2D model of channel state can be produced by using polarization and multiple antennas in the process. Once 2D channel states are known, the system turns imperfect data channels from a liability to an advantage by using channel imperfections to boost data transmission rates. The methods can be used to improve legacy data transmission modes in multiple types of media, and are particularly useful for producing new types of robust and high capacity wireless communications using non-legacy OTFS data transmission methods.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: June 25, 2019
    Assignee: Cohere Technologies, Inc.
    Inventors: Ronny Hadani, Shlomo Selim Rakib
  • Patent number: 10333668
    Abstract: Methods, systems, and devices are described for a system that supports wireless communication with a first set of devices using a first OFDM symbol duration associated with a first tone spacing (i.e., a first physical layer (PHY) configuration) and second set of devices using a PHY configuration associated with a second tone spacing. A base station may transmit a set of discovery reference signals (DRS) in a narrowband region of a primary channel of a carrier. The DRS may have the first PHY configuration and a secondary channel of the carrier may support communications using the second PHY configuration. The base station may transmit a first system information (SI) message for one set of devices using the first PHY configuration, and it may transmit a second SI message for another set of devices using the second PHY configuration.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: June 25, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Taesang Yoo, Jing Sun, Siddhartha Mallik, Tao Luo, Peter Gaal, Xiaoxia Zhang, Jun Wang
  • Patent number: 10312955
    Abstract: A method compensates for a frequency error in a communications system. The method includes detecting a received preamble sequence in a received signal. The received preamble sequence is detected based on a plurality of power estimates corresponding to a plurality of frequency bins of a received frequency domain signal and a plurality of relative phase errors corresponding to the plurality of frequency bins of the received frequency domain signal. The method includes determining the frequency error using the received preamble sequence. The method includes adjusting the receiver based on the frequency error.
    Type: Grant
    Filed: January 2, 2018
    Date of Patent: June 4, 2019
    Assignee: Silicon Laboratories Inc.
    Inventors: Hendricus de Ruijter, Ping Xiong
  • Patent number: 10306644
    Abstract: In a wireless communication base station device, a modulation unit carries out modulation processing for Dch data after coding to generate a Dch data symbol. A modulation unit carries out modulation processing for Lch data after coding to generate an Lch data symbol. An allocation unit allocates the Dch data symbol and Lch data symbol to each sub-carrier composing an OFDM symbol and outputs the allocated sub-carrier to a multiplex unit. In this case, the allocation unit allocates the Dch data symbol to a plurality of resource blocks where one Dch is arranged at an interval equal to integral multiples of the number of resource blocks composing a resource block group.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: May 28, 2019
    Assignee: Panasonic Corporation
    Inventors: Akihiko Nishio, Christian Wengerter, Hidetoshi Suzuki, Katsuhiko Hiramatsu
  • Patent number: 10305558
    Abstract: Embodiments of the present invention disclose a precoding matrix indicator feedback method, receiving method, and apparatus. User equipment UE receives a reference signal sent by a base station; the UE selects, based on the reference signal, a precoding matrix for each first subband of N first subbands in a system transmission bandwidth from a codebook, where the codebook includes at least two precoding matrixes, and each precoding matrix is denoted by at least a first precoding matrix indicator PMI and a second PMI, where each first subband of the N first subbands corresponds to a second PMI, and each second subband of M second subbands corresponds to a first PMI; and the UE feeds back the first PMI corresponding to each second subband to the base station, and feeds back the second PMI corresponding to each first subband to the base station.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: May 28, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Leiming Zhang, Qiang Wu, Jianghua Liu
  • Patent number: 10306506
    Abstract: A wireless device receives messages indicating CSI measurement resources of cells belonging to at least two base stations or belonging to at least two sectors of a base station. The wireless device measures CSI employing at least CSI measurement resources of the cells. The wireless device quantizes the measured CSI jointly across cells and encodes and transmits the jointly quantized CSI. The wireless device receives a resource assignment for data packet(s). The wireless device receives signals carrying the data packets from multiple cells.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: May 28, 2019
    Assignee: Comcast Cable Communications, LLC
    Inventor: Esmael Hejazi Dinan
  • Patent number: 10298269
    Abstract: A bit interleaver, a bit-interleaved coded modulation (BICM) device and a bit interleaving method are disclosed herein. The bit interleaver includes a first memory, a processor, and a second memory. The first memory stores a low-density parity check (LDPC) codeword having a length of 64800 and a code rate of 3/15. The processor generates an interleaved codeword by interleaving the LDPC codeword on a bit group basis. The size of the bit group corresponds to a parallel factor of the LDPC codeword. The second memory provides the interleaved codeword to a modulator for 4096-symbol mapping.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: May 21, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung-Ik Park, Sun-Hyoung Kwon, Jae-Young Lee, Heung-Mook Kim, Nam-Ho Hur
  • Patent number: 10298376
    Abstract: A method of generating a reference signal includes acquiring a base sequence and acquiring a reference signal sequence with a length N from the base sequence. Good PAPR/CM characteristics of the reference signal can be kept to enhance performance of data demodulation or uplink scheduling.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: May 21, 2019
    Assignee: Optis Cellular Technology, LLC
    Inventors: Seung Hee Han, Minseok Noh, Daewon Lee
  • Patent number: 10291452
    Abstract: A method for a base station processing in-band multiplexing using an FCP-OFDM scheme may comprise the steps of: transmitting, to a terminal, information on the length of zero padding (ZP) for a receiving side and the length of ZP for a transmitting side in a band for a first service among one or more services provided in one carrier; and on the basis of the information on the length of ZP for a receiving side and the length of ZP for a transmitting side, processing a signal of the first service in the transmitting end or receiving end of the base station.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: May 14, 2019
    Assignee: LG Electronics Inc.
    Inventors: Sangrim Lee, Hyunsoo Ko, Jaehoon Chung, Kwangseok Noh, Dongkyu Kim, Hojae Lee
  • Patent number: 10291377
    Abstract: A disclosure of the present specification provides a method for transmitting a sounding reference signal (SRS) by a terminal. The method may include the steps of: receiving an SRS configuration from a base station by the terminal; on the basis of the received SRS configuration, determining an SRS sub-frame to which an SRS is to be transmitted among a plurality of sub-frames, and an SRS transmission region to which an SRS is to be transmitted in a physical uplink control channel (PUCCH) region on the SRS sub-frame; and transmitting the SRS to the SRS transmission region on the determined SRS sub-frame, wherein when the SRS and a PUCCH are transmitted simultaneously to the SRS transmission region, the SRS and the PUCCH may be multiplexed on the basis of code division multiplexing (CDM).
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: May 14, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Daesung Hwang, Joonkui Ahn, Kijun Kim, Suckchel Yang
  • Patent number: 10284332
    Abstract: A spur cancelation system includes error circuitry, inverse spur circuitry, and injection circuitry. The error circuitry is configured to generate an error signal based at least on a first transceiver signal in a transceiver signal processing chain. The inverse spur circuitry is configured to, based at least on the error signal, determine a gain and a phase of a spur signal in the transceiver signal and generate an inverse spur signal based at least on the gain and the phase of the spur signal. The injection circuitry is configured to inject the inverse spur signal to cancel a spur in a second transceiver signal in the transceiver signal processing chain.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: May 7, 2019
    Assignee: Intel IP Corporation
    Inventors: Rotem Avivi, Michael Kerner, Assaf Gurevitz
  • Patent number: 10284269
    Abstract: A communications system has a cellular structure including a base station that is located within a cell of the cellular structure and provides an elevation beamforming transmission based on a set of elevation precoding matrix indicator offsets in an elevation codebook. The communications system also includes user equipment that is located within the cell and coupled to the base station to receive the set of elevation precoding matrix indicator offsets and a set of reference signals to provide channel quality and inter-cell interference measurements, wherein a selected channel quality indicator is based on an increase in channel quality with respect to inter-cell interference at the user equipment and corresponds to one of the set of elevation precoding matrix indicator offsets. A method of operating a communications system having a cellular structure is also provided.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: May 7, 2019
    Assignee: Nvidia Corporation
    Inventors: Pekka Janis, Tommi Koivisto, Kari Hamalainen
  • Patent number: 10285188
    Abstract: The embodiments disclose a method in an AP for downlink transmission in a beamforming radio communication network. The method comprises grouping a plurality of terminal devices to be scheduled for downlink transmission into one or more groups; and associating each of the one or more groups with a different one of digital chains in the AP, wherein payloads to be transmitted to terminal devices in a same group are processed by a digital chain associated with the group.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: May 7, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Zhiheng Guo, Jianfeng Wang
  • Patent number: 10271310
    Abstract: A method and system for allocating shareable wireless transmission resources. A resource pool is established. The resource pool is divided into a plurality of physical layer allocation units usable for wirelessly transmitting control information and traffic data. The allocation units are assigned at the media access control layer for the wireless transmission of the control information and traffic data. The system and method of the present invention also allows mobile stations to be dynamically grouped into multicast groupings to reduce system overhead resource requirements.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: April 23, 2019
    Assignee: Apple Inc.
    Inventors: Hang Zhang, Jianglei Ma, Ming Jia, Mo-Han Fong, Peiying Zhu, Wen Tong
  • Patent number: 10263801
    Abstract: A cable modem termination system (CMTS) may communicate with a plurality of cable modems using a plurality of orthogonal frequency division multiplexed (OFDM) subcarriers. The CMTS may determine a performance metric of each of the cable modems. For each of the OFDM subcarriers and each of the cable modems, the CMTS may select physical layer parameters to be used for communication with that cable modem on that OFDM subcarrier based on a performance metric of that cable modem. The parameters may be selected for each individual modem and/or each individual subcarrier, or may be selected for groups of modems and/or groups of subcarriers. The parameters may include, for example, one or more of: transmit power, receive sensitivity, timeslot duration, modulation type, modulation order, forward error correction (FEC) type, and FEC code rate.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: April 16, 2019
    Assignee: Maxlinear, Inc.
    Inventors: Curtis Ling, Sridhar Ramesh, Timothy Gallagher
  • Patent number: 10257814
    Abstract: A method of indicating to a secondary station a set of at least one available transmission resource among a predetermined plurality of transmission resources, each set being described by a plurality of parameters, said method comprising the steps of: —signalling to the secondary station an association between a control signalling channel and at least one parameter describing a set of transmission resources; coding into an address at least one remaining parameter from the plurality of parameters describing the said set of transmission resources; —transmitting the address to the secondary station using the said control signalling channel.
    Type: Grant
    Filed: December 6, 2007
    Date of Patent: April 9, 2019
    Assignee: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Matthew P. J. Baker, Timothy J. Moulsley
  • Patent number: 10250346
    Abstract: Methods (500, 800) and corresponding systems (100, 200, 300, 400, 900) for generating a pilot symbol (330) include providing an M-point parallel transform sequence that is a discrete Fourier transform of a CAZAC sequence (312, 504-508). The M-point parallel transform sequence (312) is distributed (316, 510) to a set of M subcarriers among N subcarriers to form an N-point frequency-domain sequence (318) wherein the M subcarriers are evenly spaced apart. An N-point inverse fast Fourier transform (320, 512) is performed to convert the N-point frequency-domain sequence to an N-point time-domain sequence (322). The N-point time-domain sequence is converted (324, 514) to a serial sequence (326), and a cyclic prefix is added (328, 516) to the serial sequence to form a pilot symbol (330).
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: April 2, 2019
    Assignee: Apple Inc.
    Inventor: James McCoy
  • Patent number: 10250308
    Abstract: The teachings herein present a method and apparatus that implement and use a factorized precoder structure that is advantageous in terms of performance and efficiency. In particular, the teachings presented herein disclose an underlying precoder structure that allows for certain codebook reuse across different transmission scenarios, including for transmission from a single Uniform Linear Array (ULA) of transmit antennas and transmission from cross-polarized subgroups of such antennas. According to this structure, an overall precoder is constructed from a conversion precoder and a tuning precoder. The conversion precoder includes antenna-subgroup precoders of size NT/2, where NT represents the number of overall antenna ports considered. Correspondingly, the tuning precoder controls the offset of beam phases between the antenna-subgroup precoders, allowing the conversion precoder to be used with cross-polarized arrays of NT/2 antenna elements and with co-polarized arrays of NT antenna elements.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: April 2, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: David Hammarwall, George Jöngren
  • Patent number: 10244559
    Abstract: The present invention relates to a method for transmitting uplink control information in a mobile communication system; and, more particularly, to a method for effectively forming uplink control information transmitted through a downlink from a base station to a terminal in a mobile communication system for providing a packet service and transmitting the uplink control information with minimum radio resources occupied. The method includes the steps of generating uplink control information; allocating the uplink control information to a downlink-shared radio resource for packet data transmission based on downlink scheduling information; and transmitting the radio resource to a terminal. The present invention is applied to a mobile communication system.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: March 26, 2019
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jae-Heung Kim, Young-Jo Ko, Kyoung-Seok Lee, Jung-Im Kim, Soo-Jung Jung
  • Patent number: 10243626
    Abstract: A transmission apparatus includes processing circuitry that generates a first data sequence representing first data or a second data sequence representing second data different from the first data and selects the first data sequence as an output data sequence. A modulation scheme is determined from a plurality of modulation schemes, and the output data sequence is modulated with the determined modulation scheme. Transmission circuitry transmits the modulated output data sequence. A first time interval associated with selecting the first data sequence for the output data sequence is longer than a second time interval associated with determining the determined modulation scheme.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: March 26, 2019
    Assignee: Wi-Fi One, LLC
    Inventors: Yutaka Murakami, Kiyotaka Kobayashi, Masayuki Orihashi, Akihiko Matsuoka
  • Patent number: 10243771
    Abstract: An orthogonal frequency division multiplexing (OFDM) signal transmission apparatus which transmits OFDM signals by using a plurality of transmission antennas includes a subcarrier setting device which sets signals for subcarriers so as to use some of the subcarriers of the OFDM signals as pilot subcarriers to transmit pilot signals and use the remaining subcarriers as data subcarriers to transmit data signals, the subcarrier setting device changing polarities of signals for the pilot subcarriers for each transmission antenna.
    Type: Grant
    Filed: January 3, 2017
    Date of Patent: March 26, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tsuguhide Aoki, Ichiro Seto, Daisuke Takeda, Takehiko Toyoda, Ren Sakata
  • Patent number: 10237590
    Abstract: A method is provided for transmitting broadcast signals. Service data is encoded. The encoded service data is mapped to symbols onto constellations. Data cells are frequency interleaved in a symbol among the symbols in at least one frame unit using an interleaving sequence. The interleaving sequence is generated based on a main interleaving-sequence and a symbol offset value. The interleaving sequence is generated by operating the main interleaving-sequence with the symbol offset value. The data cells are included in the symbol with a symbol index and a frame unit with a frame unit index. The frequency interleaving of the data cells operates on a frame basis. The frequency interleaving of the data cells is reset when a first frame unit is changed to a second frame unit. Data is modulated in the at least one frame unit by an Orthogonal Frequency Division Multiplexing (OFDM) scheme. The broadcast signals carrying the modulated data are transmitted.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: March 19, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Jongseob Baek, Jaehyung Kim, Woosuk Ko, Sungryong Hong
  • Patent number: 10230506
    Abstract: A signal transmission method for reducing inter-cell interference according to the present invention may comprise the steps of: determining a rank on the basis of feedback information received from a terminal; generating a transmission sequence according to the rank; generating a repetitive transmission sequence by repeating the transmission sequence, and shifting a position of a symbol within the repetitive transmission sequence; and transmitting the transmission sequence and the repetitive transmission sequence. As a result, the present invention can implement an inter-cell interference randomization even in a closed-loop MINO.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: March 12, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Kungmin Park, Heejeong Cho, Hyunsoo Ko, Hyeyoung Choi, Ilmu Byun
  • Patent number: 10225869
    Abstract: An Internet of things (IoT) device random access method based on a massive MIMO technology is disclosed, and a cellular IoT communication system using the random access method is also disclosed. In the method, multiples users access a base station by using the same preamble sequence, the users accessing the base station in different beams respectively. By use of narrow beam characteristics of a massive MIMO technology, users in different beams can use the same preamble sequence for random access, thus greatly reducing collision probability of the random access and greatly increasing the number of users of random access, and congestion and collision problems during random access of a great number of users in the cellular IoT communication system can be effectively solved.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: March 5, 2019
    Assignee: SHANGHAI RESEARCH CENTER FOR WIRELESS COMMUNICATIONS
    Inventors: Huiyue Yi, Jiang Wang, Jing Xu, Yang Yang
  • Patent number: 10225040
    Abstract: An apparatus for transmitting broadcast signal according to the present invention includes an enhanced layer stream partitioner configured to generate first and second enhanced layer partitioned signals by partitioning an enhanced layer stream; first and second combiners configured to generate a first multiplexed signal corresponding to the first enhanced layer partitioned signal and a second multiplexed signal corresponding to the second enhanced layer partitioned signal; first and second power normalizers configured to reduce powers of the first multiplexed signal and the second multiplexed signal; first and second time interleavers configured to generate a first time-interleaved signal corresponding to the first enhanced layer partitioned signal and a second time-interleaved signal corresponding to the second enhanced layer partitioned signal; and first and second OFDM transmitters configured to transmit signals corresponding to the first time-interleaved signal and the second time-interleaved signal using
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: March 5, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung-Ik Park, Jae-Young Lee, Sun-Hyoung Kwon, Heung-Mook Kim, Bo-Mi Lim, David Gomez-Barquero, Eduardo Garro, Jordi Joan Gimenez
  • Patent number: 10218493
    Abstract: In a radio using a plurality of channels defined in a radio frequency (RF) spectrum, a rate of false packet detections may be calculated for each of the plurality of channels using a plurality of respective correlation thresholds. The rate of false packet detections for each channel may be compared to a range of acceptable rates of false packet detections. The same or different ranges of acceptable rates of false packet detections may be used for each channel or each channel plan. Different correlation thresholds may be adjusted based at least in part on the comparisons. For example, if a rate of false packet detections exceeds a range of acceptable rates of false packet detections, the correlation threshold may be raised, or the reverse. A packet may be detected on different channels based on different adjusted correlation thresholds.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: February 26, 2019
    Assignee: Itron, Inc.
    Inventors: Danny Ray Seely, Junsong Lin, Michael David McNamee
  • Patent number: 10218459
    Abstract: Systems and methods for adjusting timing in a communication system, such as an OFDM system are described. In one implementation an error signal is generated to adjust the timing of a variable rate interpolator so as to adjust FFT timing. The error signal may be based on detection of significant peaks in an estimate of the impulse response of the channel, with the peak locations being tracked over subsequent symbols and the system timing adjusted in response to changes in the peaks.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: February 26, 2019
    Assignee: Maxlinear, Inc.
    Inventors: Seung-Chul Hong, Anand Anandakumar, Curtis Ling
  • Patent number: 10218545
    Abstract: A power line communication (PLC) device is provided which communicates with another PLC device via a PLC signal transmitted over a wire in a broadband. The PLC signal comprises at least one frame. The at least one frame comprises a preamble, a frame control header and a payload. The preamble comprises at least one synchronization symbols used for a PLC engine to synchronize; at least one preamble code symbols used for specifying at least one of a sub-channel and a modulation mechanism; and at least one channel estimation symbols used for the PLC engine to do channel estimation.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: February 26, 2019
    Assignee: Vangochip Technologies, Inc.
    Inventor: Jeng-Shiann Jiang
  • Patent number: 10212732
    Abstract: The present specification relates to a method for transmitting medium access control protocol data unit (MAC PDU) in a wireless communication system. The method, which is performed by a terminal, comprises the steps of: transmitting a control signal through a physical uplink channel to a base station; and transmitting the MAC PDU including terminal identifier information for identifying the terminal to the base station using contention resources within contention-based PUSCH zone (CP zone).
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: February 19, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Eunjong Lee, Heejeong Cho, Genebeck Hahn, Ilmu Byun
  • Patent number: 10200175
    Abstract: A method for transmitting data from a station (STA) device in a wireless LAN (WLAN) system, according to one embodiment of the present invention, comprises the steps of: generating a physical protocol data unit (PPDU) including a physical preamble and a data field; and transmitting the PPDU, wherein when the data field is transmitted by using a 106-tone resource unit including first to fourth pilot tones, the positions of the first to the fourth pilot tones may be identical to the positions of four pilot tones from among eight pilot tones included in four 26-tone resource units, which are present at a position corresponding to the 106-tone resource unit, or identical to the positions of four pilot tones from among eight pilot tones included in two 52-tone resource units, which are present at a position corresponding to the 106-tone resource unit.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: February 5, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Eunsung Park, Jinsoo Choi, Dongguk Lim, Hangyu Cho, Wookbong Lee
  • Patent number: 10200166
    Abstract: Certain aspects of the present disclosure relate to techniques for determining resource elements REs used for Coordinated Multipoint (CoMP) transmission schemes. The techniques generally include determining, by a User Equipment (UE), a set of data REs used for Coordinated Multipoint (CoMP) operation. The determination is based on a CoMP scheme and data REs available to particular base stations involved in the CoMP operation. The technique further includes processing data received via the CoMP operation on the determined set of data REs.
    Type: Grant
    Filed: January 16, 2012
    Date of Patent: February 5, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Wanshi Chen, Kapil Bhattad, Peter Gaal, Tao Luo, Xiaoxia Zhang
  • Patent number: 10194430
    Abstract: A method for transmitting control information, performed by a user equipment (UE), in a wireless communication system, the method includes generating, by the UE, uplink control information (UCI); and transmitting, by the UE to a base station, the UCI through a physical uplink control channel (PUCCH) in a subframe, wherein, when the subframe is configured for transmission of a scheduling request (SR) and when transmission of a hybrid automatic repeat request acknowledgement (HARQ-ACK) coincides with the subframe, transmission power of the PUCCH is determined based on a payload size of both the HARQ-ACK and the SR.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: January 29, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Min Gyu Kim, Suck Chel Yang, Joon Kui Ahn, Dong Youn Seo
  • Patent number: 10193687
    Abstract: Disclosed are a method for acquiring synchronization in a cable network, and a physical (PHY) transmitter and PHY receiver. The method for acquiring synchronization in a cable network according to an embodiment includes receiving, by a PHY receiver, a signal from a PHY transmitter, and acquiring, by the PHY receiver, channel synchronization when a symbol in which a channel preamble exists is detected from the received signal and a position of a frequency in which a channel subcarrier exists is detected from the detected symbol by performing a cross correlation operation on the received signal and the channel preamble.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: January 29, 2019
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jae Hwui Bae, Sang Jung Ra, Jin Hyuk Song, Dong Joon Choi, Nam Ho Hur
  • Patent number: 10193730
    Abstract: An orthogonal frequency division multiplexing (OFDM) transmission system is provided which includes a data processing unit which generates a transmission signal using a plurality of tones including a reserved tone, a storage unit which stores Peak Reduction Kernel information according to the type of data symbol, and a compensation unit which retrieves the Peak Reduction Kernel information according to the type of data symbol from the storage unit and causes the retrieved information to be carried by the reserved tone included in the transmission signal. Therefore, a Peak-to-Average Power Ratio (PAPR) can be efficiently compensated.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: January 29, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyo-shin Choo, June-hee Lee
  • Patent number: 10187185
    Abstract: Systems and methods are disclosed for providing efficient downlink Hybrid Automatic Request (HARQ) feedback. In some embodiments, a method of operation of a wireless device in a cellular communications system comprises receiving a downlink control information message comprising a HARQ feedback buffer index and storing a downlink HARQ feedback flag in a position within a HARQ feedback buffer that corresponds to the HARQ feedback buffer index. In this manner, multiple downlink HARQ feedback flags can be stored in the HARQ feedback buffer and subsequently transmitted to a network node in an efficient manner.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: January 22, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Andreas Bergström, Mattias Frenne, Martin Hessler, Johan Kåredal, Niclas Wiberg
  • Patent number: 10182454
    Abstract: User equipment (UE)-initiated accesses within a cellular network are optimized to account for cell size and to reduce signaling overhead. A fixed set of preamble parameter configurations for use across a complete range of cell sizes within the cellular network is established and stored within each UE. A UE located in a given cell receives a configuration number transmitted from a nodeB serving the cell, the configuration number being indicative of a size of the cell. The UE selects a preamble parameter configuration from the fixed set of preamble parameter configurations in response to the received configuration number and then transmits a preamble from the UE to the nodeB using the preamble parameter configuration indicated by the configuration number.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: January 15, 2019
    Assignee: Texas Instruments Incorporated
    Inventors: Pierre Bertrand, Jing Jiang
  • Patent number: 10181966
    Abstract: A communication device determines a format according to which a data unit is to be generated, and selects a pilot sequence to be used for generating the data unit. The pilot sequence is selected from a plurality of pilot sequences corresponding to a plurality of data unit formats, and the pilot sequence is selected based on the determined format. The communication device generates the data unit to include the selected pilot sequence, and transmits the data unit.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: January 15, 2019
    Assignee: Marvell International Ltd.
    Inventors: Yakun Sun, Hongyuan Zhang
  • Patent number: 10177887
    Abstract: A radio base station that communicates with a user terminal, and has a control section that executes control so that signals are time-division-multiplexed over a first radio resource region where symbols are multiplexed at a rate equal to or below a Nyquist rate and a second radio resource region where symbols are multiplexed at a faster rate than the Nyquist rate. The radio base station also includes a transmission section that transmits the signals that are time-division-multiplexed in the first radio resource region and the second radio resource region, to the user terminal to reduce the interference against predetermined signals in a radio communication system in which Faster-Than-Nyquist (FTN) is used.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: January 8, 2019
    Assignee: NTT DOCOMO, INC.
    Inventors: Mamoru Sawahashi, Teruo Kawamura, Yoshihisa Kishiyama
  • Patent number: 10177780
    Abstract: In the conventional technique, only an output having a bandwidth identical to the bandwidth of individual DACs has been obtained even by using a plurality of DACs. Also, even when the output of a bandwidth broader than the individual DAC is obtained, there has been a problem associated with asymmetricity of a circuit configuration. In a signal generating device of the present invention, a plurality of normal DACs are combined to realize an analog output of a broader bandwidth beyond the output bandwidth of the individual DACs, and the problem of the asymmetricity of the circuit configuration is also resolved. A desired signal is separated into a low-frequency signal and a high-frequency signal in a frequency domain, and a series of operation of constant (r)-folding the amplitude of the high-frequency signal and shifting it on the frequency axis to superimpose it on the low-frequency signal are made in a digital domain. The output of each DAC is switched by an analog multiplexer.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: January 8, 2019
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Hiroshi Yamazaki, Munehiko Nagatani, Hideyuki Nosaka, Akihide Sano, Yutaka Miyamoto
  • Patent number: 10178675
    Abstract: In a wireless communication base station device, a modulation unit carries out modulation processing for Dch data after coding to generate a Dch data symbol. A modulation unit carries out modulation processing for Lch data after coding to generate an Lch data symbol. An allocation unit allocates the Dch data symbol and Lch data symbol to each sub-carrier composing an OFDM symbol and outputs the allocated sub-carrier to a multiplex unit. In this case, the allocation unit allocates the Dch data symbol to a plurality of resource blocks where one Dch is arranged at an interval equal to integral multiples of the number of resource blocks composing a resource block group.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: January 8, 2019
    Assignee: Panasonic Corporation
    Inventors: Akihiko Nishio, Christian Wengerter, Hidetoshi Suzuki, Katsuhiko Hiramatsu
  • Patent number: 10178052
    Abstract: A parallel information processing apparatus includes a group of switches configured to have a topology of a Latin square, and nodes connected with a switch among the group of switches. The parallel information processing apparatus also include a memory and a processor configured to designate (n×k) units of blocks in the group of switches included in a lattice structure in the topology of the Latin square; to generate information about communication protocol that includes communication directions having different slopes for m (m?k) units of the nodes, and the number of hops set for the respective communication directions having the different slopes; and to execute communication for the m units of the nodes of the units of the block, based on the information about communication protocol, so as to execute part-to-part communication between the m units of the nodes of the respective units of the blocks.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: January 8, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Toshihiro Shimizu, Kohta Nakashima
  • Patent number: 10171277
    Abstract: Methods and systems for providing a low-rate data signal. Received input data bits are Manchester modulated onto successive multicarrier symbols in the time domain. Each multicarrier symbol includes orthogonal sub-carrier and a null sub-carrier. A stored waveform can be retrieved to code the sub-carriers. The successive multicarrier symbols are up-converted to a carrier frequency to provide the low-rate data signal, and the low-rate data signal is transmitted.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: January 1, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Jung Hoon Suh, Osama Aboul-Magd, Kwok Shum Au
  • Patent number: 10165499
    Abstract: In some embodiments, a network node uses beam frames to broadcast acquisition information on a plurality of beam sets (N). Each beam sets includes a plurality of beams (K). The network node broadcasts the acquisition information one beam set at a time during a corresponding one of a periodic plurality (X) of the beam frames. The periodic plurality (X) of beam frames occur with a first periodicity and are within a periodic plurality (Y) of subframes occurring with a second periodicity.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: December 25, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Neil McGowan, Marthinus Willem Da Silveira
  • Patent number: 10164694
    Abstract: There is provided mechanisms for beamforming using an antenna array. A method is performed by a network node. The method comprises obtaining, from a wireless device, a precoding matrix indicator to be used for transmission to the wireless device. The method comprises selecting a codebook from a set of codebooks according to the received indicator, wherein the selected codebook defines the precoding matrix, and wherein the set of codebooks comprises codebooks defining variable beam widths and having same number of non-zero antenna weights for all beam widths. The method comprises precoding transmission of signals to the wireless device from the antenna array using the selected codebook.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: December 25, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Maksym Girnyk, Sebastian Faxér, Sven Petersson
  • Patent number: 10158398
    Abstract: A wireless communication terminal apparatus wherein CoMP communication can normally be performed without increasing the overhead of an upstream line control channel. In this apparatus, a spreading unit primarily spreads a response signal by use of a ZAC sequence established by a control unit. A spreading unit secondarily spreads the response signal, to which CP has been added, by use of a block-wise spread code sequence established by the control unit. The control unit controls, in accordance with sequence numbers and a hopping pattern established therein, the circular shift amount of the ZAC sequence to be used for the primary spread in the spreading unit and the block-wise spread code sequence to be used for the secondary spread in the spreading unit. The hopping pattern established in the control unit is a hopping pattern common to a plurality of base stations that CoMP-receive the response signal.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: December 18, 2018
    Assignee: Sun Patent Trust
    Inventors: Seigo Nakao, Hidetoshi Suzuki, Daichi Imamura
  • Patent number: RE47278
    Abstract: Disclosed is a downlink signal configuring method and device, and synchronization and cell search method and device using the same in a mobile communication system. A downlink frame has plural symbols into which pilot subcarriers are distributively arranged with respect to time and frequency axes. Initial symbol synchronization and initial frequency synchronization are estimated by using a position at which autocorrelation of a cyclic prefix of a downlink signal and a valid symbol of the downlink is maximized, and cell search and integer-times frequency synchronization are estimated by using pilot subcarriers included in the estimated symbol. Fine symbol synchronization, fine frequency synchronization, and downlink frame synchronization is estimated by using an estimated cell search result.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: March 5, 2019
    Assignees: Electronics and Telecommunications Research Institute, Chung-Ang University
    Inventors: Kwang-Soon Kim, Jae-Young Ahn, Yong Soo Cho, Dong-Han Kim