Transmitters Patents (Class 375/295)
  • Patent number: 9667383
    Abstract: The present invention relates to a method of transmitting and a method of receiving signals, and corresponding apparatus. One aspect of the present invention relates to a method of obtaining a field for indicating a time de-interleaving depth from a layer 1 (L1) header of preamble symbols.
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: May 30, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Woo Suk Ko, Sang Chul Moon
  • Patent number: 9661616
    Abstract: The present invention relates to reporting the channel state information in a communication system. The channel state information is reported from the user terminal to a base station. Accordingly, the user terminal determines a first channel state information value from a first set of values (levels) and a second channel state information value from another set of values, preferably a larger set of values. Then a difference or other relative measure is calculated between the first and the second channel state information value and transmitted to the base station.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: May 23, 2017
    Assignee: Sun Patent Trust
    Inventors: Alexander Golitschek Edler Von Elbwart, Masayuki Hoshino
  • Patent number: 9660786
    Abstract: Methods, devices, and systems for the transmission of information in a wireless communication system are disclosed. In one embodiment, a method for the transmission of information in a wireless communication system comprises receiving a downlink message, wherein the downlink message includes a first control channel element; determining a first index using the location of the first control channel element; determining a second index; determining a first orthogonal resource using the first index; determining a second orthogonal resource using the second index; spreading an uplink message using the first orthogonal resource to form a first spread signal; spreading the uplink message using a second orthogonal resource to form a second spread signal; transmitting the first spread signal using a first antenna; and transmitting the second spread signal using a second antenna.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: May 23, 2017
    Assignee: BlackBerry Limited
    Inventors: Hua Xu, Youn Hyoung Heo, Zhijun Cai, Andrew Mark Earnshaw, Mo-Han Fong, Sean Michael McBeath, Robert Mark Harrison
  • Patent number: 9654253
    Abstract: An optical module processes first FEC (Forward Error Correction) encoded data produced by a first FEC encoder. The optical module has a second FEC encoder for further coding a subset of the first FEC encoded data to produce second FEC encoded data. The optical module also has an optical modulator for modulating, based on a combination of the second FEC encoded data and a remaining portion of the first FEC encoded data that is not further coded, an optical signal for transmission over an optical channel. The second FEC encoder is an encoder for an FEC code that has a bit-level trellis representation with a number of states in any section of the bit-level trellis representation being less than or equal to 256 states. In this manner, the second FEC encoder has relatively low complexity (e.g. relatively low transistor count) that can reduce power consumption for the optical module.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: May 16, 2017
    Assignee: INPHI CORPORATION
    Inventors: Benjamin P. Smith, Arash Farhoodfar
  • Patent number: 9648593
    Abstract: Methods and apparatus are disclosed for transmitting data to a remote node via each of two or more transmitted carrier signals, wherein a distinct outbound packet data traffic channel is mapped to each transmitted carrier signal. In an exemplary method, aggregated control channel data is formed by combining control channel data corresponding to each of two or more received carrier signals, simultaneously transmitting traffic channel data to the remote node on each of the two or more outbound packet data traffic channels, and transmitting the aggregated control channel data using one or more physical control channels mapped to a first one of the transmitted carrier signals. In particular, these methods and apparatus may be applied to a multi-carrier High-Speed Packet Access (HSPA) system.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: May 9, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Stephen Grant, Anders Wallén, Yi-Pin Eric Wang
  • Patent number: 9641292
    Abstract: Disclosed are a load modulation-based beamspace MIMO transmission method and apparatus. The beamspace MIMO transmission apparatus may include a plurality of impedance loading circuits each including a plurality of imaginary impedance devices, a beamspace MIMO control unit calculating loading values of the plurality of imaginary impedance devices, corresponding to a spatial multiplexing orthogonal frequency division multiplexing (OFDM) sample, and an RF chain unit generating a first signal having a predetermined carrier frequency.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: May 2, 2017
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Seung Eun Hong, Il Gyu Kim, Seung Chan Bang
  • Patent number: 9641288
    Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for receiving broadcast signals, the apparatus comprises a receiver to receive the broadcast signals, a demodulator to demodulate the received broadcast signals by an OFDM (Orthogonal Frequency Division Multiplex) scheme, a frame parser to parse a signal frame from the demodulated broadcast signals, a bit deinterleaver to bit deinterleave data in the parsed signal frame and a decoder to decode the bit deinterleaved data.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: May 2, 2017
    Assignee: LG Electronics Inc.
    Inventors: Yonghak Suh, Sangchul Moon, Jongwoong Shin, Woosuk Ko, Sungryong Hong
  • Patent number: 9628313
    Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The method includes encoding service data, mapping the encoded service data, wherein at least one Forward Error Correction (FEC) block of the mapped service data is grouped into at least one interleaving frame, and time interleaving the mapped service data based on the at least one interleaving frame. The time interleaving further includes block interleaving the mapped service data by writing cells of the mapped service data in a memory and reading the cells in the memory, wherein virtual cells belonging to virtual FEC blocks are skipped during the reading; spreading out the block interleaved service data over at least one signal frame; building a signal frame including the time interleaved service data; modulating data in the built signal frame by an Orthogonal Frequency Division Multiplex (OFDM) scheme; and transmitting the broadcast signals.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: April 18, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Jongseob Baek, Woosuk Ko, Seoyoung Back, Sungryong Hong
  • Patent number: 9628922
    Abstract: A hearing aid includes: an input transducer configured to output an audio signal based on a signal applied to the input transducer; a processor configured to compensate a hearing loss of a user of the hearing aid and output a hearing loss compensated audio signal; an output transducer configured to output an auditory output signal based on the hearing loss compensated audio signal, wherein the auditory output signal is to be received by a human auditory system; a wireless communication unit configured to communicate wirelessly with another device; an energy storage unit coupled to supply the wireless communication unit with power; and a current limiting unit coupled for control of replenishment of the energy storage unit with energy from a power supply.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: April 18, 2017
    Assignee: GN HEARING A/S
    Inventors: Kim Rasmussen, Ebbe Skammelsen
  • Patent number: 9628973
    Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The method for transmitting broadcast signals includes encoding data of PLPs (Physical Layer Pips); building at least one signal frame by mapping the encoded data of the PLPs; and modulating data in the built signal frame by OFDM (Orthogonal Frequency Division Multiplexing) method and transmitting the broadcast signals having the modulated data.
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: April 18, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Woochan Kim, Sungryong Hong, Woosuk Ko, Jaeho Hwang, Byounggill Kim, Jaehyung Kim
  • Patent number: 9628240
    Abstract: Disclosed are a method and device for simultaneous transmission of ACK/NACK feedback information and periodic CQI/PMI/RI feedback bits. By way of using the technical solution of the embodiments of the present invention, the periodic CQI/PMI/RI feedback bits and ACK/NACK feedback information can be simultaneously transmitted in the same uplink sub-frame using PUCCH format 3 in an LTE-A system, thus avoiding the situation that the transmission of the periodic CQI/PMI/RI information needs to be abandoned when the ACK/NACK feedback information and the periodic CQI/PMI/RI information are transmitted simultaneously in the same uplink sub-frame, improving the feedback efficiency of the uplink control information.
    Type: Grant
    Filed: November 9, 2011
    Date of Patent: April 18, 2017
    Assignee: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD
    Inventors: Xuejuan Gao, Zukang Shen, Yanan Lin
  • Patent number: 9621392
    Abstract: A method and an apparatus for receiving broadcast signals thereof are disclosed. The method for receiving broadcast signals, the method comprises receiving the broadcast signals, demodulating the received broadcast signals by an OFDM (Orthogonal Frequency Division Multiplex) scheme, parsing a signal frame from the demodulated broadcast signals, MIMO (Multiple-Input and Multiple-Output) decoding service data in the parsed signal frame, decoding signaling data in the parsed signal frame and decoding the MIMO decoded service data.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: April 11, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Jinyong Choi, Woosuk Ko, Sangchul Moon, Sungryong Hong
  • Patent number: 9613398
    Abstract: Image description and image recognizable method, it contain (a) It obtain an image which possess plural pixels. (b) It determines a starting position in the image. (c) In the image, From the starting point along the trajectory of the former spiral aggregation makes a pixel sampling, and the pixel on the trajectory rank to the former spiral aggregation. (d) the angle increases with the increase of the variance, it forming a the angle of the latter spiral aggregation. From the starting point along a trajectory of the former spiral aggregation makes the pixel sample, and the pixel on the trajectory rank to the former spiral aggregation. (e) It decides how many frequencies the angle variation increase, and repeatedly performs the step (d). After obtaining a plurality of the latter spiral aggregation, the pixel corresponds to the value. (f) It ranks the former spiral aggregation and the latter spiral aggregation. Then, spiral aggregation map will be formed and recorded the every value of the pixel.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: April 4, 2017
    Assignee: YUAN-ZE UNIVERSITY
    Inventors: Huang-Chia Shih, Kuan-Chun Yu
  • Patent number: 9608706
    Abstract: Embodiments are provided to enable effective cancellation or reduction of the self-interference (SI) introduced when applying full-duplex (FD) transmission to Multiple-Input-Multiple-Output (MIMO) systems. A method embodiment includes forming, using a precoding matrix generated in accordance with channel conditions, a plurality of beams for a plurality of transmit signals and a plurality of self-interference cancellation signals corresponding to the plurality of transmit signals. The method further includes transmitting, at a plurality of antennas, the plurality of beams for the transmit signals, and receiving, via the plurality of antennas, a plurality of receive signals. A corresponding self-interference cancellation signal is then added to each of the plurality of receive signals to obtain a plurality of corrected receive signals, and the plurality of corrected receive signals are detected at a plurality of receivers.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: March 28, 2017
    Assignee: Huawei Technologies Canada Co., Ltd.
    Inventors: Tho Le-Ngoc, Sean Huberman
  • Patent number: 9608846
    Abstract: An apparatus and method for transmitting data with conditional zero padding is provided. In accordance with an embodiment of the disclosure, a transmitter transmits data to a receiver by transmitting symbols such that each symbol is preceded by a cyclic prefix of a fixed length and the symbol conditionally includes enough zero padding to avoid ISI (Inter-Symbol Interference) between consecutive symbols. In some implementations, if the fixed length for cyclic prefixes is long enough to avoid ISI between consecutive symbols, then the symbols may omit zero padding. Otherwise, the symbols may include enough zero padding to avoid ISI between consecutive symbols. The zero padding may be zero tail or zero head.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: March 28, 2017
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Ming Jia, Jianglei Ma, Wen Tong
  • Patent number: 9596678
    Abstract: Provided are a base station, whereby the erroneous detection of control information can be reduced, thereby preventing the degradation of the system throughput. A base station (100) maps a downstream allocation control information unit, which is addressed to a terminal (200), to a first resource region, which can be used for any of a downstream control channel region and a downstream data channel region, or to a second resource region, which can be used only for the downstream control channel, so as to transmit the downstream allocation control information unit. In the base station (100), a control unit (102) establishes a scale of the PDCCH region, and a transmission region establishing unit (131) establishes, on the basis of a scale value established by the control unit (102), a mapping region to which the DCI is mapped within the R-PDCCH region and the PDCCH region.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: March 14, 2017
    Assignee: Sun Patent Trust
    Inventors: Akihiko Nishio, Seigo Nakao, Yasuaki Yuda, Ayako Horiuchi, Sujuan Feng, Michael Einhaus
  • Patent number: 9596688
    Abstract: Techniques for group-based spatial stream assignment signaling in 60 GHz wireless networks are described. According to various such techniques, a 60 GHz-capable transmitting device may be configured to define one or more DL MU-MIMO groups, each of which may comprise one or more respective 60 GHz-capable receiving devices. In various embodiments, the 60 GHz-capable transmitting device may include a DL MU-MIMO group ID within DL control information in a PHY header of a PPDU in order to indicate that the PPDU is directed to a DL MU-MIMO group corresponding to that DL MU-MIMO group ID. In some embodiments, DL MU-MIMO control information may comprise information specifying spatial stream assignments for the 60 GHz-capable receiving devices of that DL MU-MIMO group. Other embodiments are described and claimed.
    Type: Grant
    Filed: March 28, 2015
    Date of Patent: March 14, 2017
    Assignee: INTEL IP CORPORATION
    Inventors: Chittabrata Ghosh, Carlos Cordeiro
  • Patent number: 9591637
    Abstract: A wireless device at least demodulates, descrambles and decodes a first control signal to generate a first signal. The wireless device processes the first signal by at least encoding, scrambling, modulating and scaling the first signal. The wireless device subtracts the processed first signal from received signals to generate a second signal. The wireless device at least demodulates, descrambles and decodes the second signal to generate a physical broadcast message. The wireless device determines a plurality of system parameters of a base station employing the physical broadcast message.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: March 7, 2017
    Assignee: Ofinno Technologies, LLC
    Inventor: Esmael Hejazi Dinan
  • Patent number: 9590795
    Abstract: A method of transmitting and receiving a signal and an apparatus for transmitting and receiving a signal are provided. The method includes receiving the signal of a first frequency band, obtaining Layer-1 (L1) information from a preamble of a first time-frequency slicing (TFS) signal frame of the received signal, the layer-1 information including a radio frequency (RF) channel identifier of the first TFS signal frame including a physical layer pipe (PLP) in a super frame of TFS structure and including an identifier of a starting radio RF channel that can receive the PLP in the first TFS signal frame, parsing the first TFS signal frame using the L1 information and obtaining a PLP of the first TFS signal frame, and converting the PLP to a service stream.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: March 7, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Woo Suk Ko, Sang Chul Moon
  • Patent number: 9584276
    Abstract: The present invention relates to a method for a first transmission point to transmit a downlink signal to a terminal in a wireless communication system, including a step of mapping a physical downlink shared channel (PDSCH) to resource elements (REs) in a first area, with the exception of an RE corresponding to a cell-specific reference signal (CRS) of a second transmission point from among the REs available for the PDSCH, and further including a step of, when the terminal is a second type of terminal, mapping the PDSCH to REs in a second area corresponding to the CRS of the second transmission point.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: February 28, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Eunsun Kim, Byounghoon Kim, Kijun Kim
  • Patent number: 9577731
    Abstract: The inventors have recognized that in RF communication systems, by switching between transmit antennas of an RF transmitter on a sub-symbol basis (antenna index coding), and/or by adaptively determining how often antenna switching occurs (adaptive antenna hopping), an increased amount of data may be wirelessly transmitted to an RF receiver without significantly increasing energy consumption. The inventors have determined that in certain systems, such as ZigBee, data symbols consist of elementary waveform patterns, and that such waveform patterns for transmit antennas may be stored by an RF receiver for later determining transmit antennas for data symbols. The inventors have also determined that the invention may be applied in the frequency domain, such as to OFDM, by storing subcarrier waveform patterns for particular transmit antennas and later determining transmit antennas for subcarriers of data symbols.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: February 21, 2017
    Assignee: National Science Foundation
    Inventors: Xinyu Zhang, Sanjib Sur, Teng Wei
  • Patent number: 9572130
    Abstract: In a wireless network, a user equipment (UE) can communicate with an Evolved Node B (eNodeB). During at least some times, the UE transmits a data stream to the eNodeB, over one of several available antenna states on the UE. The antenna states can include one or more tuning states for each antenna port on the UE. At predetermined times, which can be periodic, the UE ceases transmission of the data stream, transmits a test signal sequentially over each of its antenna states, receives a signal back from the eNodeB indicating which of the antenna states provides the strongest signal, and switches to the indicated antenna state. After switching, the UE can resume transmission of the data stream over the indicated antenna state. In some examples, the UE can repeat the antenna tuning/retuning process periodically.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: February 14, 2017
    Assignee: Intel IP Corporation
    Inventors: Anatoliy Ioffe, Boyan Yanakiev, Thomas J. Kenney
  • Patent number: 9572063
    Abstract: Coordinated Multipoint (CoMP) involves multiple transmission points or cells coordinating their individual transmissions so that a target user equipment (UE) experiences enhanced signal reception and/or reduced interference. In order to optimally implement downlink CoMP, a serving cell needs to obtain channel state information (CSI) for the downlink channels from the multiple transmission points to the UE. This disclosure deals with radio resource control (RRC) signaling for configuring the UE to obtain and report CSI for those downlink channels.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: February 14, 2017
    Assignee: Intel Corporation
    Inventors: Kamran Etemad, Alexei Davydov, Gregory Morozov, Ilya Bolotin
  • Patent number: 9571319
    Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for transmitting broadcast signals, the apparatus comprises an encoder to encode service data, a time interleaver to interleave the encoded service data, a frame builder to build at least one signal frame including the time interleaved service data, wherein the at least one signal frame includes a plurality of OFDM symbols, a modulator to modulate data in the built at least one signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme, and a transmitter to transmit the broadcast signals having the modulated data.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: February 14, 2017
    Assignee: LG Electronics Inc.
    Inventors: Jongseob Baek, Woosuk Ko, Seoyoung Back, Sungryong Hong
  • Patent number: 9559883
    Abstract: A digital wireless transmitter and a method of transmitting a high-power modulated RF signal using a digital wireless transmitter are provided. In one embodiment, the transmitter includes: a digital system-on-a-chip configured to receive a complex digital input signal and having: an all-digital phase-locked loop and digital pulse modulator configured to modulate a phase and frequency modulation signal based on the complex digital input signal to yield a modulated complex signal, a driver configured to generate a pulse-position-modulated and pulse-width-modulated pulse train based on an instantaneous phase and amplitude of the modulated complex signal and a power supply modulation control block configured to develop an amplitude modulation control signal based on the complex digital input signal that defines a non-constant-envelope for an output signal of the transmitter.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: January 31, 2017
    Assignee: Tallannquest LLC
    Inventor: Oren E. Eliezer
  • Patent number: 9559808
    Abstract: Apparatus and methods for power control in mobile communication devices are provided. In one aspect, a wireless communication device includes a transmit chain that receives a digital in-phase (I) signal and a digital quadrature-phase (Q) signal and that generates a transmit signal. The wireless communication device further includes a power amplifier that amplifies the transmit signal, and a transmit chain controller including a reference generator that combines the digital I signal and the digital Q signal and generates a reference signal corresponding to an instantaneous value of an envelope of the combined signal. The transmit chain controller further includes an error extractor that generates an error signal based on the reference signal and an output power of the power amplifier, and a control signal generator that uses the error signal to generate one or more power control signals for controlling an adjustable power level of the transmit chain.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: January 31, 2017
    Assignee: SKYWORKS SOLUTIONS, INC.
    Inventors: Dmitriy Rozenblit, Rajasekhar Pullela, Jaleh Komaili, Masoud Kahrizi, Shahrzad Tadjpour
  • Patent number: 9559764
    Abstract: A method for transmitting data in a multiple input multiple output (MIMO) wireless communication system is disclosed. The method for transmitting a signal to a receiver by a transmitter in a multiple input multiple output (MIMO) wireless communication system includes: generating a bit stream having the size of specific bits through channel coding of data; dividing the bit stream into a first bit stream having a first bit size and a second bit stream having a second bit size; allocating the second bit stream having the second bit size to an antenna sequence codeword on the basis of a signal transmission time; and transmitting the first bit stream having the first bit size to the receiver according to an order of antenna pairs indicated by the allocated antenna sequence codeword.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: January 31, 2017
    Assignees: LG ELECTRONICS INC., INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: Kilbom Lee, Hyunsu Cha, Dongku Kim, Minho Yang, Jiwon Kang
  • Patent number: 9553651
    Abstract: A method is provided for transmitting data between a transmitter having M>=1 transmit antenna(s), and one or more receivers having a total of N>=2 receive antennas. In the method, the data are transmitted using OFDM/OQAM modulation having L>=1 subcarriers. The transmitted data are pre-encoded using a pre-encoding matrix, the size of which is M s N and which is dependent on a zero-forcing matrix and on a spatial multiplexing matrix.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: January 24, 2017
    Assignee: ORANGE
    Inventor: Dinh Thuy Phan Huy
  • Patent number: 9553746
    Abstract: A system for an orthogonal frequency division multiplexed (OFDM) equalizer, said system comprising a program memory, a program sequencer and a processing unit connected to each other, wherein the processing unit comprises an input selection unit, an arithmetic logic unit (ALU), a coprocessor and an output selection unit; further wherein the program sequencer schedules the processing of one or more symbol-carrier pairs input to said OFDM equalizer using multiple threads; retrieves, for each of the one or more symbol-carrier pairs, multiple program instructions from said program memory; generates multiple expanded instructions corresponding to said retrieved multiple program instructions; and further wherein said ALU performs said processing of the one or more symbol-carrier pairs using the multiple threads across multiple pipeline stages, wherein said processing comprises said ALU executing arithmetic operations to process said expanded instructions using said multiple threads across the multiple pipeline stag
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: January 24, 2017
    Assignee: Redline Communications Inc.
    Inventor: Octavian Valeriu Sarca
  • Patent number: 9552870
    Abstract: An apparatus includes a memory and a circuit. The memory may have a transmitter. The memory may be configured to (a) train transmit parameters of the transmitter that synchronize transmission of data with a clock signal while in a first mode, (b) save the transmit parameters in response to a command received while in the first mode, and (c) transmit additional data while in a second mode using the transmit parameters learned while in the first mode. The circuit may have a receiver in communication with the memory. The circuit may be configured to (a) train receive parameters of the receiver that synchronize reception of the data with the clock signal while the memory is in the first mode and (b) receive the additional data from the memory while the memory is in the second mode using the receive parameters learned while the memory was in the first mode.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: January 24, 2017
    Assignee: INTEGRATED DEVICE TECHNOLGY, INC.
    Inventor: Shwetal Arvind Patel
  • Patent number: 9548807
    Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for transmitting broadcast signals, the apparatus comprises an encoder to encode service data, a mapper to map the encoded service data, a time interleaver to time interleave the mapped service data, wherein the time interleaving is performed depending on number of physical paths for the service data, a frame builder to build at least one signal frame including the time interleaved service data, a modulator to modulate data in the built at least one signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme and a transmitter to transmit the broadcast signals having the modulated data.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: January 17, 2017
    Assignee: LG ELECTRONICS, INC.
    Inventors: Jongseob Baek, Seoyoung Back, Woosuk Ko, Sungryong Hong
  • Patent number: 9548880
    Abstract: According to an embodiment, a digital transmitter (1) includes an amplitude modulation amplitude signal generation unit (132) that generates a function f(A(t)) of an amplitude signal A(t) as an amplitude modulation amplitude signal A?(t), an amplitude modulation phase signal generation unit (133) that calculates “cos?1 {A(t)/f(A(t))}” as a phase ?1(t) and generates amplitude modulation phase signals P1(t) and P2(t), an individual digital transmission unit (11) that generates an amplified RF-pulse signal based on the signals A?(t) and P1(t), an individual digital transmission unit (12) that generates an amplified RF-pulse signal based on the signals A?(t) and P2(t), and an RF-synthesizer (16) that combines outputs of the individual digital transmission units (11, 12) with each other.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: January 17, 2017
    Assignee: NEC CORPORATION
    Inventor: Shinichi Hori
  • Patent number: 9544174
    Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for transmitting broadcast signals comprises an encoder for encoding service data, a mapper for mapping the encoded service data into a plurality of OFDM (Orthogonal Frequency Division Multiplex) symbols to build at least one signal frame, a frequency interleaver for frequency interleaving data in the at least one signal frame by using a different interleaving-seed which is used for every OFDM symbol pair comprised of two sequential OFDM symbols, a modulator for modulating the frequency interleaved data by an OFDM scheme and a transmitter for transmitting the broadcast signals having the modulated data.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: January 10, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Jongseob Baek, Jaehyung Kim, Woosuk Ko, Sungryong Hong
  • Patent number: 9543982
    Abstract: A modulator and a modulation method using a non-uniform 16-symbol signal constellation are disclosed. The modulator includes a memory and a processor. The memory receives a codeword corresponding to a low-density parity check (LDPC) code having a code rate of 2/15. The processor maps the codeword to 16 symbols of the non-uniform 16-symbol signal constellation on a 4-bit basis.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: January 10, 2017
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung-Ik Park, Sun-Hyoung Kwon, Jae-Young Lee, Heung-Mook Kim, Nam-Ho Hur
  • Patent number: 9544116
    Abstract: Techniques to support multihop relay in a wireless communication system are described. In an aspect, a relay station receives data and a first pilot from an upstream station, e.g., a base station or another relay station. The relay station derives a channel estimate based on the first pilot and performs detection for the data based on the channel estimate. The relay station resends the data and sends a second pilot to a downstream station, e.g., a subscriber station or another relay station. Each pilot may be sent in accordance with a pilot format selected for that pilot. The first and second pilots may be sent using the same or different pilot formats. The relay station may receive channel information from the second station and may forward the channel information to the first station and/or select a rate for data transmission to the second station based on the channel information.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: January 10, 2017
    Assignee: Qualcomm Incorporated
    Inventors: Pranav Dayala, Tingfang Ji
  • Patent number: 9544008
    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 27, 2016
    Date of Patent: January 10, 2017
    Assignee: PANASONIC CORPORATION
    Inventors: Kenichi Miyoshi, Hidetoshi Suzuki, Katsuhiko Hiramatsu, Christian Wengerter, Alexander Golitschek Edler Von Elbwart
  • Patent number: 9544034
    Abstract: A system and method for system and method for multiplexing control and data channels in a multiple input, multiple output (MIMO) communications system are provided. A method for transmitting control symbols and data symbols on multiple MIMO layers includes selecting a first set of codewords from Ncw codewords, distributing control symbols onto the first set of layers, placing data symbols of the first set of codewords onto the first set of layers, placing data symbols of the (Ncw?Ncw1) remaining codewords to remaining layers if Ncw>Ncw1, and transmitting the multiple MIMO layers. The first set of codewords is associated with a first set of layers from the multiple MIMO layers, and the Ncw codewords are to be transmitted simultaneously and the first set of codewords comprises Ncw1 MIMO codewords, where Ncw and Ncw1 are integers greater than or equal to 1. The remaining layers are MIMO layers from the multiple MIMO layers not in the first set of layers.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: January 10, 2017
    Assignee: FUTUREWEI TECHNOLOGIES, INC.
    Inventors: Yufei Blankenship, Weimin Xiao, Ying Jin
  • Patent number: 9544535
    Abstract: An HDMI® source determines whether or not an HDMI® sink can receive a sub-signal based on VSDB of E-EDID. When the HDMI® sink can receive the sub-signal, the HDMI® source adds a sub-signal to pixel data of a main image composed of pixel data whose number of bits is smaller than that of transmission pixel data transmitted by a transmitter, thereby constructing transmission pixel data. This data is transmitted by the transmitter through TMDS channels #0 to #2. Furthermore, the HDMI® source transmits a general control packet containing sub-signal information indicating whether or not the sub-signal is contained in the transmission pixel data in the control period of a vertical blanking period. The present invention can be applied to, for example, HDMI®.
    Type: Grant
    Filed: May 1, 2015
    Date of Patent: January 10, 2017
    Assignee: Sony Corporation
    Inventors: Kazuyoshi Suzuki, Katsuji Matsuura
  • Patent number: 9535088
    Abstract: A signal detection circuit includes: a VCO that generates a reference signal; a complex signal generation circuit that generates a complex signal from an input signal and the reference signal; a vector operation circuit that calculates an argument of the complex signal by performing a vector operation; and a subtracting phase comparator that compares the argument with a phase of the reference signal by calculating a difference between the argument and the phase of the reference signal, wherein the complex signal generation circuit includes: a multiplication circuit that multiplies the input signal by the reference signal; and an HPF that removes a DC component from a signal output from the multiplication circuit.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: January 3, 2017
    Assignee: NATIONAL UNIVERSITY CORPORATION KANAZAWA UNIVERSITY
    Inventors: Takeshi Fukuma, Kazuki Miyata
  • Patent number: 9537555
    Abstract: An uplink antenna selection method where a base station transmits first and second control information to a user equipment. The first control information includes instructions for configuring the user equipment with closed-loop transmit antenna selection on one of a plurality of component carriers, and the second control information includes instructions for configuring the UE with open-loop transmit antenna selection on at least one other of the plurality of the component carriers. Also, the UE may transmit an indication of its capability for transmission antenna switching per component carrier. Further, the UE may perform steps to resolve inconsistent antenna selection triggers received from the base station.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: January 3, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Peter Gaal, Wanshi Chen
  • Patent number: 9537562
    Abstract: Embodiments of the present invention provide a signal processing method and a terminal. The method includes: receiving a control signal. Channel state information between a coordinated base station and the terminal and between the serving base station and the terminal is determined. Information is about determined time difference or information about a phase difference of arrival between signals sent by the coordinated base station and the serving base station at the terminal according to the channel state information. Adjustment information is sent to the serving base station so that the serving base station adjusts the sending time, phase, or pre-coding manner of the signal according to the adjustment information.
    Type: Grant
    Filed: May 7, 2014
    Date of Patent: January 3, 2017
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Fan Wang, Bo Xu, Yuhong Chu, Hongping Zhang, Liang Xia
  • Patent number: 9532187
    Abstract: The present invention provides a method and apparatus for transmitting using an interleaver applied to a PPDU in a HE WLAN. In an aspect of the present invention, a method for transmitting data to a plurality of STAs through transmission channel by an AP in a WLAN system, wherein the transmission channel is divided into a plurality of subchannels which are allocated to the plurality of STAs respectively, the method may include interleaving a plurality of data units for the plurality of STAs based on characteristics of the plurality of subchannels allocated to the plurality of STAs to generate a plurality of interleaved data units; and transmitting, through the transmission channel, a Physical layer Protocol Data Unit (PPDU) frame including the plurality of interleaved data units respectively on the plurality of subchannels to the plurality of STAs.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: December 27, 2016
    Assignee: NEWRACOM, INC.
    Inventor: Yongho Seok
  • Patent number: 9526094
    Abstract: Provided is a terminal that can accurately measure channel information between the terminal and each TP subjected to CoMP control. In this terminal, a reception processing unit (203) receives a reference signal transmitted from a specific transmission point and control information, and receives a signal transmitted from a transmission point other than the specific transmission point, this signal being received in resources comprising, from among a reference-signal resource group, a resource of a first number specified from the control information, and a resource of a second number separated from the first number by a predetermined number. A CSI generation unit (206) uses the reference signal and a signal received by an interference measurement resource to generate channel information. A transmission signal-forming unit (208) transmits the generated channel information.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: December 20, 2016
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Masayuki Hoshino, Daichi Imamura
  • Patent number: 9525467
    Abstract: Disclosed herein are a cooperation MIMO transmitting/receiving method and a terminal for supporting the same. A master terminal forms a slave terminal and a cluster performing cooperation communication. The master terminal transmits some data of data to be transmitted to a slave terminal and shares the some data with the slave terminal, and the slave terminal transparently transmits data transmitted from the master terminal to a target node.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: December 20, 2016
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Seokki Kim, Sung Cheol Chang, Seungkwon Cho, Soojung Jung, Hyung Jin Kim, Hyun Lee, DongSeung Kwon
  • Patent number: 9520973
    Abstract: The present invention provides various methods for transmitting a channel state information reference signal (CSI-RS) by varying a transmission period for each antenna port or antenna port group, and also provides apparatuses supporting the methods. The method for receiving a CSI-RS in a wireless access system according to one aspect of the present invention may comprise the steps of: receiving a CSI-RS component information element for setting CSI-RS transmission periods for two or more antenna ports to be mutually different; receiving CSI-RSs for each of the two or more antenna ports based on the CSI-RS component information element; and acquiring channel state information for each of the two or more antenna ports based on the received CSI-RS.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: December 13, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Jinmin Kim, Hyunsoo Ko, Jaehoon Chung
  • Patent number: 9515863
    Abstract: A broadcast signal receiver is disclosed. A broadcast signal receiver according to the present invention comprises a synchronization/demodulation module carrying out signal detection and OFDM demodulation on a received broadcast signal; a frame parsing and deinterleaving module parsing and deinterleaving a signal frame of the broadcast signal; a demapping and decoding module converting data of at least one Physical Layer Pipe (PLP) of the broadcast signal into a bit domain and performing FEC decoding on the converted data; and an output processing module receiving data of the at least one PLP and outputting the received data into a data stream.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: December 6, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Jongseob Baek, Woosuk Ko, Sungryong Hong
  • Patent number: 9509475
    Abstract: Disclosed are a method and an apparatus for transmitting and receiving data. A method for transmitting an uplink comprises the steps of: a terminal receiving periodic channel state information (CSI) configuration information; the terminal determining an uplink subframe according to the periodic CSI configuration information; and the terminal transmitting a periodic CSI through the uplink subframe, wherein the periodic CSI configuration information may include information regarding a period, subframe offset, and a reference cell to which a wireless frame number is applied.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: November 29, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Bonghoe Kim, Yunjung Yi, Suckchel Yang, Joonkui Ahn, Dongyoun Seo
  • Patent number: 9510221
    Abstract: A pilot measurement method is provided, which includes that a receiving end determines a port configuration for pilot measurement, and the receiving end receives a pilot signal using the port configuration, and obtains channel information upon an estimate. Correspondingly, a receiving end for pilot measurement is also provided. Even though the number of antenna ports is sharply increased, a part of ports still can be selected as the ports for transmitting a pilot signal according to needs, the number of the ports for transmitting the pilot signal can be unlimited, and the pilot configuration problem under the condition of sharp increase in the number of the antenna ports can be solved.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: November 29, 2016
    Assignee: ZTE CORPORATION
    Inventors: Chenchen Zhang, Yunfeng Sun, Senbao Guo
  • Patent number: RE46312
    Abstract: An apparatus and method for transmitting digital broadcast signal are provided. The apparatus includes a group formatter to format a data group including mobile service data, where the group formatter further maps the mobile service data into a data group of interleaved format, adds N training sequences into a corresponding location of the data group of interleaved format, adds signaling data into the data group of interleaved format, inserts place holder bytes for MPEG header and non-systematic Reed-Solomon (RS) parity into the data group of interleaved format, and deinterleaves the mobile service data in the data group of interleaved format, a non-systematic RS encoder to non-systematic RS encode the mobile service data in the formatted data group and insert non-systematic RS parity obtained from the non-systematic RS encoding into the formatted data group.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: February 14, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Hyoung Gon Lee, Byoung Gill Kim, Won Gyu Song, In Hwan Choi, Jin Woo Kim
  • Patent number: RE46354
    Abstract: An apparatus and method for transmitting digital broadcast signal are provided. The apparatus includes a group formatter to format a data group including mobile service data, where the group formatter further maps the mobile service data into a data group of interleaved format, adds N training sequences into a corresponding location of the data group of interleaved format, adds signaling data into the data group of interleaved format, inserts place holder bytes for MPEG header and non-systematic Reed-Solomon (RS) parity into the data group of interleaved format, and deinterleaves the mobile service data in the data group of interleaved format, a non-systematic RS encoder to non-systematic RS encode the mobile service data in the formatted data group and insert non-systematic RS parity obtained from the non-systematic RS encoding into the formatted data group.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: March 28, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Hyoung Gon Lee, Byoung Gill Kim, Won Gyu Song, In Hwan Choi, Jin Woo Kim