Plural Channels For Transmission Of A Single Pulse Train Patents (Class 375/260)
  • Patent number: 10321159
    Abstract: A method of performing a Fourier transform includes generating first data by performing a one-dimensional (1D) fast Fourier transform (FFT), on data having rows and columns, in a row direction; generating second data by performing the 1D FFT, on a portion of the first data, in a column direction; and storing a portion of the second data.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: June 11, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hojung Kim, Hoon Song, Hongseok Lee
  • Patent number: 10320452
    Abstract: A method for feeding back information about a channel between antenna arrays is provided, which includes: receiving, by a first network device, channel information of N×M sub-channels that is sent by a second network device, where an antenna array of the first network device includes M subarrays, an antenna array of the second network device includes N subarrays, a channel between the antenna array of the first network device and the antenna array of the second network device includes the N×M sub-channels, M and N are positive integers and are not both 1, and the M subarrays and the N subarrays each include at least two antennas; and generating channel information of the channel between the antenna array of the first network device and the antenna array of the second network device according to the channel information of the N×M sub-channels that is from the second network device.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: June 11, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Ye Wu
  • Patent number: 10320541
    Abstract: Provided is a transmission device for transmitting data in a wireless communication based on DFT-spread OFDM. Specifically, provided is a transmission device which outputs a first sub-band and a second sub-band by performing DFT on an input symbol with a tail part and a head part in which at least one 0 has been inserted by a DFT block controlled by a processor, outputs a signal by performing IDFT on the first sub-band which has been mapped by a first IDFT block, allows the signal to be filtered by a first band pass filter, outputs a signal by performing IDFT on the second sub-band which has been mapped by a second IDFT block, and allows the signal to be filtered by a second band pass filter.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: June 11, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Sangrim Lee, Hyunsoo Ko, Jaehoon Chung, Kwangseok Noh, Dongkyu Kim
  • Patent number: 10314058
    Abstract: A wireless communication device including: a wireless communication unit configured to wireless communication with another wireless communication device in accordance with an IEEE 802.11 standard; and a control unit configured to control the wireless communication unit so that the wireless communication unit includes schedule information in a PLCP header defined in the IEEE 802.11 standard and transmits the schedule information to the other wireless communication device, the schedule information relating to orthogonal frequency-division multiple access.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: June 4, 2019
    Assignee: SONY CORPORATION
    Inventors: Masahito Mori, Yuichi Morioka, Takeshi Itagaki, Eisuke Sakai
  • Patent number: 10313044
    Abstract: The present invention relates to the communications field, and discloses a data transmission method, a device, and a system, so as to resolve a problem in the prior art that user equipment cannot correctly parse data or measure a channel due to incapability of identifying different operators. A specific solution is: obtaining a scrambling code sequence, where the scrambling code sequence is generated according to a specific sequence of an operator to which a first device belongs; scrambling data according to the scrambling code sequence to obtain the scrambled data; and sending the scrambled data. The present invention is used for data transmission.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: June 4, 2019
    Assignee: Hauwei Technologies Co., Ltd.
    Inventors: Da Wang, Jian Wang
  • Patent number: 10313169
    Abstract: System and method embodiments are provided for high efficiency wireless communications. In an embodiment, a method in a network component for transmitting a frame of two different fast Fourier transform (FFT) sizes includes generating a frame, wherein the frame comprises orthogonal frequency-division multiplexing (OFDM) symbols in two different FFT sizes, wherein the frame comprises a first portion and a second portion, wherein the first portion comprises a first FFT size and the second portion comprises a second FFT size; and transmitting the frame during a single transmission opportunity.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: June 4, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jung Hoon Suh, Peiying Zhu, Osama Aboul-Magd, Kwok Shum Au, Sheng Sun
  • Patent number: 10312990
    Abstract: A signal sending method includes: mapping, by a sending device, a first sequence onto M even-numbered subcarriers in 2M subcarriers, and mapping a second sequence onto M odd-numbered subcarriers in the 2M subcarriers, where the first sequence is one of a third sequence and a fourth sequence, the second sequence is the other of the third sequence and the fourth sequence, the 2M subcarriers are subcarriers on a same time domain symbol, and for elements of a second time domain sequence corresponding to the fourth sequence and a first time domain sequence corresponding to the third sequence at a same moment, when a complex factor is taken out, one of the first time domain sequence and the second time domain sequence is an in-phase component, and the other is a quadrature component; and transforming sequences mapped onto the 2M subcarriers to a time domain to generate transmit signals, and then sending the transmit signals.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: June 4, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Bingyu Qu, Jianqin Liu, Kunpeng Liu, Yongxing Zhou
  • Patent number: 10313175
    Abstract: Disclosed is a method for estimating a CFO, the method comprising: measuring a size ratio of a signal pair received in two consecutive OFDM symbols of a predetermined subcarrier; determining the received signal pair as a signal pair to be used for estimating a residual CFO when the size ratio is within a first threshold range; and estimating the residual CFO, using only the received signal pair which has been determined to be used for estimating the residual CFO.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: June 4, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Kilbom Lee, Jiwon Kang, Kitae Kim, Kungmin Park, Heejin Kim
  • Patent number: 10313838
    Abstract: Systems and methodologies are described herein that facilitate reduced complexity network-assisted device positioning in a wireless communication system. As described herein, a mobile device and/or other suitable device can utilize positioning assistance messages received from a location server, a serving network cell, and/or other entities, to assist in position fixing based on reference signals (e.g., positioning reference signals (PRSs)) detected from nearby network cells. Positioning assistance messages as described herein can include, for example, information relating to PRS bandwidths, transmit antenna configurations, and/or other parameters of respective cells from which reference signals are detected by a device during positioning.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: June 4, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Ashwin Sampath, Raja Sekhar Bachu, Nathan Edward Tenny
  • Patent number: 10305571
    Abstract: A data transmission method, apparatus, and system, and user equipment are provided. The data transmission method may include determining configuration information of a first time unit in a radio time window, where the first time unit includes multiple sub-time units, a switching time period and a transmission time period are reserved in a first sub-time unit at an interval of at least N sub-time units in the first time unit, the switching time period is used to perform analog beam switching for a common channel and/or a common reference signal, and N is a natural number. The method also includes transmitting the common channel and/or the common reference signal in the first sub-time unit in the first time unit according to the configuration information of the first time unit, where the common channel and/or the common reference signal are/is transmitted in the transmission time period.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: May 28, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jianqin Liu, Yongxing Zhou, Jianghua Liu, Qiang Wu
  • Patent number: 10305635
    Abstract: A method for transmitting data in a multiple-input-multiple-output space-time coded communication using a mapping table mapping a plurality of symbols defining the communication to respective antennae from amongst a plurality of transmission antennae and to at least one other transmission resource. The mapping table may comprise Alamouti-coded primary segments and may also comprise secondary segments, comprising primary segments. The primary segments in the secondary segments may be defined in accordance to an Alamouti based code pattern applied at the segment level to define a segment-level Alamouti based code.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: May 28, 2019
    Assignee: Apple Inc.
    Inventors: Robert Novak, Hosein Nikopourdeilami, Mo-Han Fong, Sophie Vrzic
  • Patent number: 10305645
    Abstract: A unified frame structure for filter bank multi-carrier (FBMC) and orthogonal frequency division multiplexed (OFDM) waveforms may allow FBMC and OFDM frames to be communicated over a common channel without significant inter-frame gaps. The unified frame structure may set an FBMC frame duration to an integer multiple of an OFDM frame element duration to enable alignment of FBMC frames and OFDM frames in the time domain. The unified frame structure may also map control channels in the FBMC and OFDM frames to common resource locations so that the respective control channels are aligned in the time and/or frequency domains. The unified frame structure may also share synchronization channels between FBMC and OFDM frames. Additionally, overhead in an FBMC time division duplexed (TDD) communications channel can be reduced by overlapping time windows appended to FBMC blocks.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: May 28, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Javad Abdoli, Ming Jia, Jianglei Ma
  • Patent number: 10306573
    Abstract: A method for device-to-device (D2D) communications includes generating, by a synchronization source, a primary device-to-device synchronization signal that is different from a primary synchronization signal (PSS) sent by an Evolved NodeB (eNodeB) and an existing uplink (UL) signal sent by device-to-device communications devices, and transmitting, by the synchronization source, the primary device-to-device synchronization signal in a single carrier frequency division multiple access (SC-FDMA) waveform.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: May 28, 2019
    Assignee: Futurewei Technologies, Inc.
    Inventors: Philippe Sartori, Liang Xia, Qiang Li, Branislav M. Popovic, Fredrik Berggren
  • Patent number: 10305556
    Abstract: A transmission method simultaneously transmitting a first modulated signal and a second modulated signal at a common frequency performs precoding on both signals using a fixed precoding matrix and regularly changes the phase of at least one of the signals, thereby improving received data signal quality for a reception device.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: May 28, 2019
    Assignee: SUN PATENT TRUST
    Inventors: Yutaka Murakami, Tomohiro Kimura, Mikihiro Ouchi
  • Patent number: 10306648
    Abstract: A method of transmitting/receiving data between a communications device and a mobile communications network including a wireless access interface providing communications resources within a system bandwidth and in time divided units allocated to communications devices of first and second types having different capabilities.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: May 28, 2019
    Assignee: SONY CORPORATION
    Inventors: Brian Alexander Martin, Matthew William Webb, Hideji Wakabayashi
  • Patent number: 10305711
    Abstract: A method for modulating and coding a data packet comprising digitally encoded information. The method comprises selecting a hierarchy of modulation and coding schemes to use for modulation and coding of the digitally encoded information. The method also comprises identifying, among the bits in the digitally encoded information and based on the selected hierarchy of modulation and coding schemes, two sets of data, a first set of data and a second set of data, the second set of data being a sub-set of the first set of data and comprising bits different from the most robust bits of the first set of data. The method further comprises performing modulation and coding of the first set of data using a modulation and coding scheme with high order modulation in order to create a first layer of the data packet.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: May 28, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Leif Wilhelmsson, Miguel Lopez, Nafiseh Shariati, Dennis Sundman
  • Patent number: 10306505
    Abstract: A transmitter reports channel quality information by partitioning channel quality values, based on a channel quality information reporting parameter, into at least two partitions, each partition corresponding to a frequency bandwidth associated with the communications system. A channel quality value of the channel quality values of at least one of the at least two partitions is encoded to obtain signaling information on channel quality, including at least one of first channel quality information and second channel quality information, based on the channel quality information reporting parameter, wherein the second channel quality information is different from the first channel quality information. The transmitter transmits the signaling information on the channel quality by reporting the first channel quality information or the second channel quality information at different reporting frequencies depending on the channel quality information reporting parameter.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: May 28, 2019
    Assignee: Optis Wireless Technology, LLC
    Inventor: Alexander Golitschek Edler von Elbwart
  • Patent number: 10297270
    Abstract: Methods and apparatus for performing signal processing. The signal processing comprises demultiplexing input encoded data into data including information for a segment including frames and coefficient information for a coefficient selected in the frames of the segment, and low band encoded data, decoding the low band encoded data to produce a low band signal, selecting a coefficient of a frame to be processed from a plurality of the coefficients based on the data, calculating a high band sub-band power of a high band sub-band signal of each sub-band constituting a high band signal of the frame to be processed based on a low band sub-band signal of each sub-band constituting the low band signal of the frame to be processed and the selected coefficient, and producing the high band signal of the frame to be processed based on the high band sub-band power and the low band sub-band signal.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: May 21, 2019
    Assignee: Sony Corporation
    Inventors: Yuki Yamamoto, Toru Chinen, Hiroyuki Honma, Yuhki Mitsufuji
  • Patent number: 10298298
    Abstract: A consumer premise equipment (CPE) which may comprise a processor, a storage medium, and an antenna, wherein the processor may be operatively coupled to the storage medium and the antenna to receive, from multiple antennas of a hub station, a first beam training announcement signal that may inform the CPE to be ready to receive a beam training packet using one or more beams, wherein the beam training packet may include a plurality of symbols that are each beamformed using a different beamformer or precoder; and send, to the hub station, a beamforming feedback report based on measurements taken by the CPE, possibly as a result of the CPE receiving the first beam training announcement signal.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: May 21, 2019
    Assignee: Verizon Patent and Licensing Inc.
    Inventor: Zhouyue Pi
  • Patent number: 10291458
    Abstract: A hybrid data transmission frame format for a hybrid single-carrier modulation and OFDM carrier modulation MIMO system and corresponding transmission/reception methods and devices. A transmitter employs single-carrier modulation for preambles and signaling fields via a single-carrier signal generator to produce single-carrier transmission sequences of transmission links. While to employs the same sampling rate to process all the data so as to match a receiver, the sampling rate of the single-carrier transmission sequences needs to be processed into being identical to that of OFDM via a pulse shaping multiphase filter before entering a digital-to-analog converter; the transmitter employs an OFDM modulation mode to transmit data field segments via an OFDM signal generator; and a data receiving process of the receiver is opposite to a data transmitting process of the transmitter.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: May 14, 2019
    Assignee: ZTE Wavestone Science and Technology Ltd.
    Inventors: Shiwen He, Bo Wu, Haiming Wang, Yongming Huang, Jun Zhang
  • Patent number: 10291438
    Abstract: An exemplary decoder is provided for decoding a signal received through a transmission channel in a communication system. The exemplary decoder comprises a transformation unit configured to determine a set of auxiliary channel matrices, each auxiliary channel matrix being determined by performing a linear combination of at least one of the column vectors of the channel matrix; a decomposition unit configured to determine a decomposition of each auxiliary channel matrix into an upper triangular matrix and an orthogonal matrix; a matrix selection unit configured to select at least one auxiliary channel matrix among the set of auxiliary channel matrices depending on a selection criterion related to the components of the upper triangular matrices. The decoder determines at least one estimate of vector of information symbols from an auxiliary signal and from the upper triangular matrix corresponding to a selected auxiliary channel matrix by applying a decoding algorithm.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: May 14, 2019
    Assignee: INSTITUT MINES-TELEOM
    Inventors: Asma Mejri, Mohamed-Achraf Khsiba, Ghaya Rekaya Ben-Othman
  • Patent number: 10284337
    Abstract: A data transmission method and a data transmission device are provided. A transmission device classifies data symbols for each scheduled user into groups based on logic resource element groups determined based on encoding matrices each multiplexed by multiple users, encodes respective groups of data symbols for each user in accordance with the encoding matrices to determine groups of encoded data symbols for each user, subjects respective groups of encoded data symbols for each user to a mapping treatment based on logic resource elements, maps respective logic resource element groups to a physical resource block in accordance with a mapping mode, and transmits data to a reception device based on the physical resource block.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: May 7, 2019
    Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Ying Peng, Shaoli Kang, Fei Qin
  • Patent number: 10284407
    Abstract: Methods and systems for operation in a wireless network are provided, the method including receiving modulated data symbols and zeros in a frequency-domain, and mapping in the frequency-domain the modulated data symbols and zeros in an interleaved manner to sub-carriers within a resource allocation. The method further includes generating a time-domain data signal based on the mapped sub-carriers, and generating a time domain cancellation signal by sign inverting and repeating a predetermined number of time-domain samples at a tail portion of the data signal. The method further includes combining the time-domain data signal and the time domain cancellation signal to generate an exact zero tail data signal such that the exact zero tail data signal has a zero tail length equal to the predetermined number of time-domain samples, and transmitting the exact zero tail data signal.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: May 7, 2019
    Assignee: IDAC Holdings, Inc.
    Inventors: Erdem Bala, Mihaela C. Beluri, Kyle Jung-Lin Pan, Tao Deng, Liangping Ma, Yugeswar Deenoo, Ravikumar V. Pragada, Alphan Sahin
  • Patent number: 10284265
    Abstract: A method and apparatus for efficient precoding matrix verification in a multiple-input multiple-output MIMO wireless communication system are disclosed. A wireless transmit/receive unit WTRU sends a precoding matrix index PMI to an eNodeB. The eNodeB sends a verification message including a PMI indicator indicating whether or not the PMI of the WTRU and a PMI of the eNodeB are identical. If the PMI of the WTRU and of the eNodeB are identical, the eNodeB sends just a PMI indicator otherwise the eNodeB sends to the WTRU a PMI indicator and the PMI of the eNodeB. A plurality of PMIs may be sent simultaneously, and the PMIs may be partitioned into a plurality of groups. The PMI indicator may be either attached to or inserted into control signaling. PMI validation messages can be signaled to WTRU by control signaling or use of a dedicated reference signal.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: May 7, 2019
    Assignee: InterDigital Technology Corporation
    Inventor: Kyle Jung-Lin Pan
  • Patent number: 10282817
    Abstract: An image processing method is provided. The method is configured to process the color-block image output by the image sensor. The high-frequency region of the color-block image is determined. A part of the color-block image within the high-frequency region is converted into a first image using a first interpolation algorithm. A part of the color-block image beyond the high-frequency region is converted into a second image using a second interpolation algorithm. The complexity of the second interpolation algorithm is less than that of the first interpolation algorithm. The first image and the second image are merged into a simulation image corresponding to the color-block image. An image processing apparatus and an electronic device are provided.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: May 7, 2019
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventor: Cheng Tang
  • Patent number: 10285135
    Abstract: A data transmission arrangement includes an energy supplier for supplying the data transmission arrangement with electrical energy; a determiner for determining useful data provided by a sensor element connected to the data transmission arrangement; a coder for channel coding of the useful data so as to obtain channel-coded data; a splitter for splitting up the channel-coded data into a plurality of data packets having a code rate smaller than one; and a transmitter for transmitting data packets which is configured to transmit the plurality of data packets via a communication channel with a time lag, provided that an amount of electrical energy that can be provided by the energy supplier is sufficient for transmitting the respective data packets at a standard transmitting power.
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: May 7, 2019
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Josef Bernhard, Gerd Kilian
  • Patent number: 10284405
    Abstract: Embodiments of a transmitter having an architecture that reduces power consumption and complexity are disclosed. In some embodiments, a transmitter comprises a modulator comprising an actuator, modulation circuitry, and an adaptor. The actuator is operable to apply at least one adjustment to at least one modulator input signal to provide at least one adjusted modulator input signal. The modulation circuitry is operable to perform a modulation operation on the at least one adjusted modulator input signal to provide a modulated signal, and the adaptor is operable to adaptively configure the at least one adjustment applied to the at least one modulator input signal such that a Peak-to-Average Ratio (PAR) of the modulated signal is reduced.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: May 7, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Pierre-Andre Laporte, Bilel Fehri
  • Patent number: 10284411
    Abstract: The present invention discloses a signal processing method and apparatus, and pertains to the field of communications technologies. The apparatus includes: a processor and a memory. The method includes: setting each sampling point signal on an orthogonal frequency division multiplexing OFDM symbol, and obtaining an input signal; calculating a constraint matrix according to a frequency selective fading channel characteristic; and calculating an output signal according to the sampling point signal, the input signal, and the constraint matrix. The present invention resolves a problem that frequency selective fading has an impact on transmission of the OFDM symbol, and a constraint matrix obtained according to a flat fading channel characteristic is not applicable to the OFDM symbol, thereby achieving an effect of reducing the impact of the frequency selective fading on the transmission of the OFDM symbol.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: May 7, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Haicun Hang, Ye Wu
  • Patent number: 10278191
    Abstract: A method for mitigating interference at a small base station in a hierarchical cell structure is provided. In the method, the small base station checks a sub-frame allocated to macro user equipment by using a downlink signal received from a macro base station when an interference candidate user equipment list is received. The interference candidate user equipment list contains information on the macro user equipment adjacent to a femto cell controlled by the small base station. Then the small base station allocates other sub-frame to femto user equipment located in the femto cell by avoiding the sub-frame allocated to the macro user equipment.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: April 30, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang Min Lee, Tak Ki Yu, Yung Soo Kim
  • Patent number: 10277450
    Abstract: A method employed by a circuit included within a receiver apparatus and configured for performing IQ mismatch compensation when receiver apparatus is operating under data reception mode includes: transforming a data signal, which is generated by a radio frequency receiver under the data reception mode, from time domain into a plurality of frequency bin signals in frequency domain; calculating to obtain at least one frequency domain calibration parameter according to the plurality of frequency bin signals in frequency domain; and, updating at least one coefficient parameter of IQ mismatch compensation according to the obtained at least one frequency domain calibration parameter, to make IQ mismatch compensation compensate IQ mismatch based on the updated at least one coefficient parameter.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: April 30, 2019
    Assignee: MEDIATEK INC.
    Inventors: Wei-Chiang Li, Chen-Jui Hsu, Chun-Hsien Peng
  • Patent number: 10277440
    Abstract: Systems and techniques for determining common phase error (e.g., phase error common to subcarriers) in an OFDM symbol are described. A respective common phase error for each data symbol of a plurality of data symbols in a data packet are combined to form a refined common phase error. The refined common phase error is based on pilot tones from a plurality of data symbols in a data packet, rather than being limited to pilot tones of a single data packet. Accordingly, refined common phase errors are determined that provide processing gain to accurately estimate common phase error in an OFDM symbol when other systems fail, including when the number of pilot tones in OFDM symbols is low or the data packets are received with high noise. Further improvement is made when the data packet is long due to the coherency of oscillator phase noise and amplifier gain drift.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: April 30, 2019
    Assignee: Marvell International Ltd.
    Inventors: Ankit Sethi, Sudhir Srinivasa, Sayak Roy
  • Patent number: 10277374
    Abstract: Aspects of the invention include methods and devices for inserting data and pilot symbols into Orthogonal Frequency Division Multiplexing (OFDM) frames having a time domain and a frequency domain. A method involves inserting in at least one zone of a first type a two dimensional array of data and pilot symbols in time and frequency and inserting in at least one zone of a second type a two dimensional array of data and pilot symbols in time and frequency. In some implementations the zone of the first type comprises common pilot symbols that can be detected by all receivers receiving the OFDM frame. In some implementations the zone of the second type comprises dedicated pilot symbols that are only detectable by a receiver that is aware of pre-processing used to encode the dedicated pilot symbols.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: April 30, 2019
    Assignee: Apple Inc.
    Inventors: Jianglei Ma, Ming Jia, Wen Tong, Peiying Zhu, Hang Zhang, Mo-Han Fong
  • Patent number: 10278219
    Abstract: An UE 100#1 performs D2D communication that is direct device-to-device communication in a frequency band #1. The UE 100#1 transmits a specific D2D signal that includes frequency band information indicating the frequency band #1. The UE 100#1 transmits the specific D2D signal in frequency bands #2 and #3 different from the frequency band #1.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: April 30, 2019
    Assignee: KYOCERA Corporation
    Inventor: Chiharu Yamazaki
  • Patent number: 10277373
    Abstract: Disclosed is a method for transmitting a pilot sequence, the method comprising: generating a sequence set on the basis of a baseline sequence having non-CAZAC properties; and selecting any one pilot sequence form among sequence sets corresponding to different additional information, and transmitting same to a receiver.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: April 30, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Kilbom Lee, Jiwon Kang, Wookbong Lee, Jinsoo Choi, Dongguk Lim, Hangyu Cho, Eunsung Park
  • Patent number: 10277430
    Abstract: A method of configuring user equipment in a wireless communication network to operate to receive a dynamically changing coordinated multipoint transmission from one or more transmission point in said network, a computer program product and network control node operable to perform that method. The method comprises: determining, for the user equipment, a set of two or more transmission points from which the user equipment may receive a transmission and allocating them to a coordinated multipoint transmission measurement set associated with the user equipment; allocating a set of modes of operation of the transmission points in the coordinated multipoint transmission measurement set for communication with the user equipment; associating a codepoint to each mode in the allocated set of modes of operation of the set of transmission points to form a codebook; and informing the user equipment of the codebook.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: April 30, 2019
    Assignee: Alcatel Lucent
    Inventors: Matthew Baker, Fang-Chen Cheng, Min Zhang
  • Patent number: 10270466
    Abstract: Systems and methods are described for performing Layered Belief LDPC decoding on received Standard Belief LDPC encoded data bursts. In on implementation, a receiver: demodulates a signal, the demodulated signal including a noise corrupted signal derived from a codeword encoded using standard belief LDPC encoding; converts the noise corrupted signal derived from the standard belief LDPC encoded codeword to a noise corrupted signal derived from a layered belief LDPC encoded codeword; and decodes the noise corrupted signal derived from the layered belief LDPC encoded codeword using a layered belief LDPC decoder. In further implementations, systems are described for reducing collisions in Layered Belief LDPC decoders that occur when multiple parity checks need the same soft decision at the same time. In these implementations, elements in an original LBD decoder table are rearranged to increase the distance between elements specifying the same location in a RAM where soft decisions are stored.
    Type: Grant
    Filed: August 15, 2016
    Date of Patent: April 23, 2019
    Assignee: Hughes Network Systems, LLC
    Inventors: Gaurav Bhatia, Qiujun Huang, Mustafa Eroz
  • Patent number: 10270626
    Abstract: Embodiments of the present invention provide an adaptive narrowband interference cancellation method and an apparatus. A receiving apparatus in the present invention includes: a channel type determining module, configured to: measure a delay spread of a multipath channel passed by a received time-domain signal, and determine a channel type according to a measurement result; a weighting coefficient selection module, configured to select a weighting coefficient according to the channel type; a time-domain windowing processing module, configured to perform time-domain windowing processing on the time-domain signal according to the weighting coefficient; and a frequency-domain interference cancellation processing module, configured to perform, according to the weighting coefficient, frequency-domain interference cancellation processing on the signal that is output after the time-domain windowing processing.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: April 23, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Xi Chen, Zhiqiang Zou
  • Patent number: 10271291
    Abstract: A method for reporting power headroom is disclosed. Power headroom may be reported across all carriers (wideband), for a specific carrier, or for a carrier group. The formula used to calculate the power headroom depends on whether the carrier (or a carrier in the carrier group) has a valid uplink grant. If the carrier or carrier group does not have a valid uplink grant, the power headroom may be calculated based on a reference grant. The power headroom is calculated by a wireless transmit/receive unit and is reported to an eNodeB.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: April 23, 2019
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Guodong Zhang, Erdem Bala, Philip J. Pietraski, Sung-Hyuk Shin, Kyle Jung-Lin Pan, Joseph S. Levy, Jin Wang, Peter S. Wang, Janet A. Stern-Berkowitz, John W. Haim
  • Patent number: 10270634
    Abstract: A signal transmission apparatus includes: a first receiving unit to receive a probe signal transmitted by transmitting end; wherein, the signal is generated based on a recommended signal configuration from previous signal to noise ratio (SNR) probings; a first processing unit to probe a channel SNR according to the signal; a first determining unit to determine transmission signal configuration and signal transmission performance of a final channel SNR obtained by multiple SNR probings; and a first transmitting unit to transmit the configuration and the performance to the transmitting end, where the transmitting end transmits an actual transmission signal according to the configuration and the performance.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: April 23, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Hao Chen, Lei Li, Weizhen Yan, Bo Liu
  • Patent number: 10270500
    Abstract: A method for channel information feedback, a base station and a device, the method includes: a terminal performs a channel measurement, constructs an information matrix used for representing channel information according to a preset function, determines optimal channel parameters and feeds back the channel parameters to a base station; and the base station constructs quantization information of a characteristic vector of a channel matrix according to the received channel parameters and the channel matrix. In the technical solution provided by the embodiment of the present document, since the most essential characteristic of a dual-polarized channel, i.e.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: April 23, 2019
    Assignee: ZTE Corporation
    Inventors: Yijian Chen, Zhaohua Lu, Jing Zhao, Huahua Xiao, Guanghui Yu
  • Patent number: 10263748
    Abstract: A method and an apparatus for transmitting an uplink data and a user equipment is provided, the method includes: inserting multiple phase noise tracking reference signal (PT-RS) groups into a user data to be sent in time domain, according to a predefined interval; wherein each group of the phase noise tracking reference signal includes one or multiple PT-RS(s) of adjacent sampling points in the time domain; transforming the inserted multiple phase noise tracking reference signal groups together with the user data to be sent into frequency domain through a discrete Fourier transform (DFT) followed with a subcarrier mapping, and then with a transformation through an inverse fast Fourier transform (IFFT), to obtain an uplink DFT-S-OFDM waveform; and transmitting the uplink DFT-S-OFDM waveform. Embodiments of this disclosure may increase the accuracy of tracking the uplink phase noise and the possible system residual frequency shift and Doppler frequency shift, and may improve the system performance.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: April 16, 2019
    Assignee: SPREADTRUM COMMUNICATIONS (SHANGHAI) CO., LTD.
    Inventors: Shaofei Wang, Su Huang, Hualei Wang
  • Patent number: 10263749
    Abstract: A transmission apparatus includes a plurality of orthogonal frequency division multiplexing (OFDM) modulation signal generators, which generate a first OFDM modulation signal and a second OFDM modulation signal. The transmission apparatus also includes a transmitter that transmits the first OFDM modulation signal from a first antenna and the second OFDM modulation signal from a second antenna, in an identical frequency band.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: April 16, 2019
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Yutaka Murakami, Masayuki Orihashi, Akihiko Matsuoka
  • Patent number: 10264600
    Abstract: Aspects of the present disclosure provide a scheduling entity in communication with a set of scheduled entities within a wireless communication network. The scheduling entity groups a plurality of tones into uplink clusters, where each uplink cluster includes one or more adjacent tones. In addition, the scheduling entity maps a first set of uplink clusters to a first virtual cluster group (VCG) for an uplink control channel, assigns the first VCG to a first scheduled entity of the set of one or more scheduled entities, provides a first VCG index identifying the first VCG to the first scheduled entity and receives uplink control information from the first scheduled entity on the first VCG over the uplink control channel.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: April 16, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Yi Huang, Tao Luo, Krishna Kiran Mukkavilli, Wei Zeng
  • Patent number: 10263675
    Abstract: The disclosure relates to a method performed in a wireless device for establishing a feedback metric. The wireless device is configured with a grouping of available precoding matrix indicators, PMIs, of a codebook, the grouping comprising two or more groups each of which comprises an exclusive subset of the available precoding matrix indicators, PMIs. The method comprises: identifying for one or more rank indicator, RI, hypotheses a respective parent PMI providing the highest link quality metric, LQM; establishing for one or more of the identified parent PMIs, a respective set of child PMIs; determining a link quality metric, LQM for each child PMIs of the established one or more sets of child PMIs; and establishing the feedback metric to be the child PMI having the highest link quality metric, LQM. The disclosure also relates to a wireless device, method in a network node, network node, computer programs and computer program products.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: April 16, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ)
    Inventors: Shashi Kant, Sairamesh Nammi, Goutam Ramamurthy
  • Patent number: 10263739
    Abstract: An apparatus for transmitting broadcast signals includes an encoder to encode service data, a mapper to map the encoded service data, and a time interleaver to interleave the mapped service data. The time interleaver includes a cell interleaver to interleave cells in a FEC block of the mapped service data, where the cell interleaver performs linearly writing the cells in the FEC block into a memory and randomly reading the cells in the FEC block according to a permutation sequence. The permutation sequence varies in every FEC block by using a shift value. The apparatus also includes a block interleaver to interleave the cell interleaved service data, where the block interleaver includes column-wise writing FEC blocks of the cell interleaved service data into a TI memory, and diagonal-wise reading the FEC blocks from the TI memory by skipping a part of cells included in the TI memory, and a convolutional interleaver to interleave the block interleaved service data.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: April 16, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Jongseob Baek, Woosuk Ko, Sungryong Hong
  • Patent number: 10256960
    Abstract: A base station apparatus is used in a mobile communication system in which at least a shared data channel is transmitted by an orthogonal modulation scheme using an I-channel and a Q-channel. The base station apparatus includes a providing unit providing Acknowledgement/Non-Acknowledgement information indicating whether retransmission of a signal received in uplink is required; a mapping unit mapping a number of multiplexed users of the Acknowledgement/Non-Acknowledgement information to the I-channel or the Q-channel based on a predetermined mapping table; and a reporting unit reporting the Acknowledgement/Non-Acknowledgement information to the respective users. The mapping table indicates that, when the number of the multiplexed users is equal to or less than a predetermined number, the Acknowledgement/Non-Acknowledgement information is associated with the I-channel or the Q-channel, and otherwise, the Acknowledgement/Non-Acknowledgement information is associated with the I-channel and the Q-channel.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: April 9, 2019
    Assignee: NTT DOCOMO, INC.
    Inventors: Nobuhiko Miki, Mamoru Sawahashi, Kenichi Higuchi
  • Patent number: 10257011
    Abstract: A method of configuring a preamble of a downlink frame for synchronization in data frame transmission of a 60 GHz wireless local area network system, the method comprising arranging a short preamble having a plurality of repetitive S symbols, and an IS symbol, and arranging a long preamble having a long cyclic prefix (CP) and a plurality of L symbols for frame synchronization and symbol timing by performing auto-correlation according to the length of window of the auto-correlation.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: April 9, 2019
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Woo-Yong Lee, Sok-Kyu Lee
  • Patent number: 10257006
    Abstract: A communication device determines that an extension field should be included in physical layer (PHY) data unit to provide a receiver with more processing time to process data included in the PHY data unit, wherein the extension field is not required to be processed by the receiver. The communication device generates i) a PHY preamble of the PHY data unit, and ii) a PHY data portion of the PHY data unit, the PHY data unit conforming to a first communication protocol. Each orthogonal frequency division multiplexing (OFDM) symbol in the PHY data portion is generated with a first tone spacing, which is a fraction 1/N of a second tone spacing defined by a second communication protocol, wherein N is a positive integer greater than one. The communication device also generates the extension field of the PHY data unit, which is appended to an end of the PHY data portion.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: April 9, 2019
    Assignee: Marvell World Trade Ltd.
    Inventors: Hongyuan Zhang, Yakun Sun, Mingguang Xu, Rui Cao, Hui-Ling Lou
  • Patent number: 10257007
    Abstract: The present application relates to a filtering scheme with low complexity. The method includes: dividing an orthogonal frequency division multiplexing (OFDM) signal into a first sideband signal, a first signal, and a second sideband signal; sampling the first sideband signal by using a first sampling rate; sampling the first signal by using a second sampling rate; sampling the second sideband signal by using a third sampling rate; and separately performing filtering processing of a third spectral mask, upsampling processing, and digital frequency conversion processing to generate a first filtered-OFDM (f-OFDM) signal, a second f-OFDM signal and a third f-OFDM signal; and superposing the first f-OFDM signal, the second f-OFDM signal, and the third f-OFDM signal to obtain an f-OFDM signal, where the first sampling rate and the third sampling rate are both less than the second sampling rate.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: April 9, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jing Qiu, Ming Jia, Jianglei Ma
  • Patent number: 10257745
    Abstract: The present invention relates to a wireless communication system. According to an embodiment of the present invention, a method for receiving, by a terminal, a signal by using a network-assisted interference cancellation and suppression (NAICS) in a wireless communication system, according to one embodiment of the present invention, comprises the steps of: transmitting terminal capability information including information on an interference transmission mode (TM) supported by the terminal; receiving network assistance information corresponding to the terminal capability information; and receiving a signal by using the network assistance information, wherein the terminal capability information can include port number information about a number of common reference signal (CRS) ports of an interfering cell on which the terminal can perform NAICS.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: April 9, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Hyungtae Kim, Kijun Kim, Joonkui Ahn, Byounghoon Kim, Hanjun Park, Hyunho Lee