Plural Channels For Transmission Of A Single Pulse Train Patents (Class 375/260)
  • Patent number: 11005548
    Abstract: A multi-antenna system includes: a server; a first antenna group, provided on a base station and including multiple first antennas including a first representative antenna and a first non-representative antenna, the base station performing intra-group channel estimation to obtain and transmit to the server multiple first inner channel estimation coefficients between the first representative antenna and the first non-representative antenna, and serving a user device; and a reference device, communicating with the server and the first antennas, performing channel estimation between the reference device and the first representative antenna to obtain and transmit to the server multiple first outer channel estimation coefficients between the reference device and the first representative antenna. The server calculates a precoding matrix according to the first inner and first outer channel estimation coefficients, and the base station performs data transmission with the user device according to the precoding matrix.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: May 11, 2021
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Jia-Ming Chen, Hung-Fu Wei, Jyun-Wei Lai, Jen-Yuan Hsu
  • Patent number: 11006449
    Abstract: A wireless communication system includes a first access point managing a first wireless local area network and at least one second access point managing at least one respective wireless local area network. A CSMA/CA procedure is employed. The first access point is involved in a real-time sensitive transmission. Each access point implements an energy detection mechanism and a preamble detection mechanism in the context of the CSMA/CA procedure. The energy detection mechanism is implemented for accessing the primary channel and for accessing each secondary channel. The preamble detection mechanism is implemented for accessing the primary channel and optionally for accessing each secondary channel. A decision making unit instructs the first access point and each second access point to use the same primary communication channel. This improves the conditions under which the real-time sensitive transmission takes place.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: May 11, 2021
    Assignee: SAGEMCOM BROADBAND SAS
    Inventors: Anthony Reuche, Massinissa Lalam
  • Patent number: 11005500
    Abstract: A data processing apparatus, a data processing method, and a program are disclosed. They improve communication performance by performing bit interleaving suitable for a modulation method that is a non-uniform constellation. One example of a data processing apparatus includes a mapping unit configured to generate a second bit sequence by mapping a first bit sequence to any symbol on a complex plane corresponding to a NUC modulation method, an inter-symbol interleaving unit configured to generate a third bit sequence by performing inter-symbol interleaving to the second bit sequence, an intra-symbol interleaving unit configured to generate a fourth bit sequence by performing intra-symbol interleaving for shifting M bits as a whole of the third bit sequence per a same number of M bits as the bit number M representing the symbol, and a modulation unit configured to wirelessly transmit the fourth bit sequence according to the NUC modulation method.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: May 11, 2021
    Assignee: Sony Corporation
    Inventor: Makiko Yamamoto
  • Patent number: 11005541
    Abstract: A method for transmitting feedback information by a terminal may comprise the steps of: measuring a channel; multiplying a first matrix associated with the measured channel by a transformation matrix, so as to obtain a second matrix and transmitting the obtained second matrix to a base station in a bit format. In addition, the transformation matrix may be determined on the basis of an angle offset satisfying a predetermined condition.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: May 11, 2021
    Assignee: LG ELECTRONICS INC.
    Inventors: Woonghee Lee, Sangrim Lee, Hojae Lee
  • Patent number: 11005615
    Abstract: Certain aspects of the present disclosure relate to communication systems, and more particularly, to techniques for mitigating inter-cell interference for uplink ultra-reliable low latency communications (URLLC).
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: May 11, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Chong Li, Junyi Li, Wanshi Chen, Jing Jiang
  • Patent number: 11005679
    Abstract: In a transmission apparatus, signal carrier signal circuitry that generates two single carrier signals including a legacy preamble signal, a legacy header signal and an extension header signal respectively. OFDM signal circuitry that generates one OFDM signal by performing an IFFT processing on one or more payload signals. Transmission circuitry that transmits the two single carrier signals by allocating to a bonding channel which is formed by bonding two adjacent channels used in a bonding transmission scheme and the one OFDM signal by allocating to the bonding channel which is frequency-shifted.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: May 11, 2021
    Assignee: Apple Inc.
    Inventors: Hiroyuki Motozuka, Naganori Shirakata, Takenori Sakamoto, Masataka Irie
  • Patent number: 10999811
    Abstract: A wireless communication method includes: receiving a wireless signal including a plurality of frames, wherein each of the plurality of frames includes a plurality of sub-frames and a current frame is initially a first one of the frames; a) performing a correlation calculation between each of the sub-frames of the current frame and each a plurality of reference signals to generate a plurality of current correlation values; b) respectively accumulating the current correlation values with previous correlation values to generate cumulative values respectively corresponding to the plurality of sub-frames of the current frame; determining whether an effective synchronization signal is detected, based on the current cumulative values; and setting the current frame to a next one of the frames, setting the previous correlational values to the current correlation values, and determining whether to resume to step a) based on the determination as to whether the effective synchronization signal is detected.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: May 4, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hae-Chul Lee, Sung-Yoon Cho
  • Patent number: 10999117
    Abstract: Disclosed are apparatuses for communication devices. An apparatus for a communication device includes control circuitry configured to determine a discrete Fourier transform (DFT) of a constant amplitude zero autocorrelation waveform (CAZAC) sequence appended with zeros in the time domain to generate a frequency domain interpolated CAZAC sequence. The control circuitry is also configured to determine an inverse discrete Fourier transform (IDFT) of the frequency domain interpolated CAZAC sequence to generate a demodulation reference signal (DMRS), and cause the DMRS to be transmitted through a cellular data network. An apparatus for a communication device includes control circuitry configured to perform a Fourier transform on a received DMRS to obtain a resulting signal, and use the resulting signal as a reference to demodulate orthogonal frequency-division multiplexing (OFDM) symbols.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: May 4, 2021
    Assignee: APPLE INC.
    Inventors: Sameer Pawar, Huaning Niu, Utsaw Kumar
  • Patent number: 10999832
    Abstract: A signal transmission method, a terminal device and a network device are provided. The method includes: a terminal device receives downlink control information, (DCI), the DCI carries resource reservation indication information, and the resource reservation indication information indicates the terminal device whether reserve a physical resource is to be reserved in a time-domain resource unit; the terminal device determines a first physical resource used for transmitting a first signal in the time-domain resource unit according to the resource reservation indication information, or determines a second physical resource used for an uplink and downlink guard period in the time-domain resource unit according to the resource reservation indication information.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: May 4, 2021
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Yanan Lin, Hua Xu
  • Patent number: 10999807
    Abstract: The embodiments of the invention provide an information transmission method and apparatus. The method comprises: determining, from a plurality of numerologies, a target numerology, and transmitting or receiving, according to the target numerology, a synchronization signal.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: May 4, 2021
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventor: Hai Tang
  • Patent number: 10999104
    Abstract: Systems and methods of assigning channel state information-reference symbol (CSI-RS) ports to user equipment are provided. In addition resource configurations for transmission of CSI-RS are provided, and methods of mapping CSI-RS sequences to such resources are provided.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: May 4, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Mohammadhadi Baligh, Keyvan Zarifi, Jianglei Ma, Kelvin Kar Kin Au
  • Patent number: 10998995
    Abstract: A base station (BS) may transmit, and a user equipment (UE) may receive, a physical channel, such as a narrowband physical downlink control channel (NPDCCH) or a narrowband physical downlink shared channel (NPDSCH). In an interference-limited scenario in a network, it may be desirable to perform additional processing to introduce interference randomization into the control channel to ensure that the UE can recover data of the control channel. Some types of UEs, such as legacy UEs, may not be capable of recovering the control channel when the additional processing is performed. In some aspects, the BS may identify a type of UE associated with a cell, and may transmit a physical channel processed using a processing scheme selected based at least in part on the type of UE associated with the cell.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: May 4, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Alberto Rico Alvarino, Peter Gaal, Kapil Bhattad
  • Patent number: 10993255
    Abstract: Disclosed in the present application is a method for a terminal transmitting an uplink signal in a wireless communication system. Particularly, the method comprises the steps of: receiving, from the base station, allocation information for resource blocks in a wideband and information on precoders indicated in sub-band units; configuring the allocated resource blocks into sub-bands including two or more continuous resource blocks; and transmitting the uplink signal through the sub-bands to the base station by applying the precoders to corresponding sub-bands.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: April 27, 2021
    Assignee: LG ELECTRONICS INC.
    Inventors: Hyungtae Kim, Jonghyun Park, Jiwon Kang, Kijun Kim, Haewook Park
  • Patent number: 10992443
    Abstract: Methods and devices enable a fine synchronization related to a data transmission on a physical channel. A fine timing reference signal is occasionally transmitted to the data transmission recipient using one of time-frequency resources in a recipient-specific pattern.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: April 27, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Robert Baldemair, Eleftherios Karipidis, Stefan Parkvall, Henrik Sahlin
  • Patent number: 10991375
    Abstract: Systems and methods for processing an audio signal are provided for replay on an audio device. An audio signal is spectrally decomposed into a plurality of subband signals using and pass filters. Each of the subband signals are provided to a respective modulator and subsequently, from the modulator output, provided to a respective first processing path that includes a first dynamic range compressor, DRC. Each subband signal is feedforward compressed by the respective first DRC to obtain a feedforward-compressed subband signal, wherein the first DRC is slowed relative to an instantaneous DRC. Subsequently, each feedforward-compressed subband signal is provided to a second processing path that includes a second DRC, wherein the feedforward-compressed subband signal is compressed by the respective second DRC and outputted to the respective modulator. Modulation of the subband signals is then performed in dependence on the output of the second processing path.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: April 27, 2021
    Assignee: Mimi Hearing Technologies GmbH
    Inventor: Nicholas R. Clark
  • Patent number: 10992647
    Abstract: Disclosed are systems and methods for exchanging data in a client-server architecture. At the client side, a first data structure intended for dispatch to a server is divided into at least two substructures including a first substructure and a second substructure. The substructure is dispatched from the client to the server across a first network node with an anonymization module, wherein data of the first substructure is transformed by the anonymization module. The second substructure from the client is dispatched to a second network node with a storage module. The second substructure is received by the server from the network node with the storage module, and the obtained data substructures are combined into a second data structure by the server.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: April 27, 2021
    Assignee: AO Kapersky Lab
    Inventors: Andrey A. Efremov, Dmitry V. Shmoylov
  • Patent number: 10986514
    Abstract: An eNB may determine a root for a sequence to be included in a signal to a UE. The eNB may generate a generalized Chu sequence based on the root and scramble the generalized Chu sequence using a pseudorandom sequence that is common to a plurality of eNBs. The eNB may transmit the scrambled generalized Chu sequence to indicate the beginning of a downlink transmission. The UE may receive this scrambled generalized Chu sequence and determine if a beginning of a downlink transmission from a serving eNB based on the received generalized Chu sequence and an expected generalized Chu sequence.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: April 20, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Jing Sun, Taesang Yoo, Xiaoxia Zhang
  • Patent number: 10985825
    Abstract: Embodiments of the present disclosure provide methods for transmitting an uplink signal and a downlink signal. A method for transmitting an uplink signal comprises detecting whether there is a beam failure; if there is a beam failure, determining at least one of whether there is a candidate downlink transmission beam(s) or candidate downlink transmission beam information; and transmitting a beam failure recovery request message to a base station, the beam failure recovery request message being used for informing the base station of at least one of whether there is a candidate downlink transmission beam(s) or candidate downlink transmission beam information. A method for transmitting a downlink signal comprises detecting a beam failure recovery request message, determining at least one of whether there is a candidate downlink transmission beam(s) or candidate downlink transmission beam information in the UE; and transmitting a feedback message corresponding to the beam failure recovery request message.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: April 20, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Qi Xiong, Chen Qian, Bin Yu
  • Patent number: 10985882
    Abstract: According to some embodiments, a method in a wireless transmitter of aligning code blocks with modulation symbols comprises: receiving a block of information bits for wireless transmission in a plurality of modulation symbols; partitioning the plurality of modulation symbols into groups of one or more modulation symbols, wherein the modulation symbols in a group are contiguous in time; and assigning each of the information bits to one of the groups. For each of the groups the method further comprises: segmenting the assigned information bits in the group into one or more code blocks; encoding each code block into coded bits; and assigning the coded bits of the one or more code blocks to the group of modulation symbols the information bits are assigned to. The method further comprises transmitting the groups of modulation symbols to a wireless receiver.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: April 20, 2021
    Assignee: Teiefonaktieboiaget LM Ericsson (Publ)
    Inventors: Mattias Andersson, Robert Baldemair, Yufei Blankenship, Sara Sandberg
  • Patent number: 10985818
    Abstract: A method comprises receiving beam cluster information from a beam forming access point. The beam cluster information defining a plurality of beam clusters. The beam cluster information defines beam identification information for each of a plurality of beams in a respective beam cluster. The beam cluster information is used to control the processing of at least one beam received from the access point.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: April 20, 2021
    Assignee: Nokia Solutions and Networks Oy
    Inventors: Juha Pekka Karjalainen, Mihai Enescu, Sami-Jukka Hakola
  • Patent number: 10986633
    Abstract: A communications device transmits and receives data via a wireless access interface in a mobile communications network. First resource allocation messages are received by communications devices to allocate one or more of plural communications resource elements of a host frequency range of a host carrier.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: April 20, 2021
    Assignee: SONY CORPORATION
    Inventors: Matthew William Webb, Hideji Wakabayashi, Yuichi Morioka
  • Patent number: 10979255
    Abstract: Systems and methods of performing data transmission and reception in a communication system are presented. In one exemplary embodiment, a method performed by a wireless device for transmitting a signal in a first communication system that is frequency-domain multiplexed with a second communication system may include generating (201), by a modulator (401), a modulated signal that represents one or more information symbols. The modulated signal may include one or more modulation symbols of the first communication system. The method may also include filtering (203), by a pulse shaping filter (403), the modulated signal to obtain the filtered modulated signal. The pulse shaping filter (403) may be configured to operate with a period that corresponds to the symbol rate of the second communication system. In addition, the method may include transmitting (209), by a transmitter (409), the filtered modulated signal at a carrier or sub-carrier frequency of the first communication system.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: April 13, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Miguel Lopez, Bo Hagerman
  • Patent number: 10980029
    Abstract: A station (STA), which supports multiple spatial streams, can, and sometimes does, re-advertise the station as supporting less spatial stream (SS) than the actual number of spatial streams that the device does actually support. In some embodiments, a station's maximum advertised maximum number of spatial streams is proactively reduced based on the station's throughput being below one or more thresholds. In some embodiments, the analysis and level of spatial stream value to be reported in a re-advertisement is determined by the access point. In some other embodiments, the analysis and level of spatial stream value to be reported in a re-advertisement is determined by the station. The access point allocating its limited supported spatial streams among stations is able to more efficiently allocate the air link resources.
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: April 13, 2021
    Assignee: Charter Communications Operating, LLC
    Inventors: Taren G. McCullough, Matthew Dillon, Christopher W. Watson
  • Patent number: 10972165
    Abstract: A beam determination method, a downlink transmission decoding method performed in a communication system, and corresponding user equipments and base stations are disclosed. The base station has a plurality of transmission beams, and may dynamically select a beam for transmitting downlink control information and downlink data information from a plurality of beams. The downlink transmission decoding method performed by the user equipment includes: determining M preferred beams in the plurality of transmission beams of the base station; and receiving, through one or more reception beams corresponding to any one or more of N preferred beams in the M preferred beams, downlink control information transmitted by the base station, wherein N?M, the base station transmitting signaling including same downlink control information through the N preferred beams during the transmission time period of the downlink control information.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: April 6, 2021
    Assignee: NTT DOCOMO, INC.
    Inventors: Jing Wang, Liu Liu, Huiling Jiang, Kazuki Takeda, Satoshi Nagata
  • Patent number: 10972134
    Abstract: A system for a digital subscriber line (DSL) network with a DSL interface can operate with processing circuitry that can generate symbols in multicarrier communications with codewords for modulation of a parity check. The codewords can be aligned with symbol boundaries of the symbols in a continuous transmission of the multi-carrier communications. The processing circuitry reduces a number of parity bits by puncturing and a number of data bits for shortening of the codewords so that a codeword boundary is aligned with a symbol boundary for one or more symbols, or a transmission frame of symbols.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: April 6, 2021
    Inventors: Rainer Strobel, Vladimir Oksman
  • Patent number: 10972240
    Abstract: The present disclosure provides a pilot sequence transmission method and apparatus. A terminal device determines a first pilot number, determines a first pilot sequence and a second pilot sequence according to the first pilot number, respectively maps the first pilot sequence and the second pilot sequence to a first orthogonal frequency division multiplexing (OFDM) symbol and a second OFDM symbol of a grant free transmission resource, and sends the first pilot sequence and the second pilot sequence by using the first OFDM symbol and the second OFDM symbol. Therefore, a network device can determine activeness of the terminal device by detecting the first pilot sequence, and can detect only the second pilot sequence corresponding to the first pilot sequence, and does not need to detect all possible second pilot sequences, so that a quantity of detected pilots can be significantly reduced, and pilot detection complexity is reduced.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: April 6, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Yiqun Wu, Yan Chen, Xiuqiang Xu
  • Patent number: 10973020
    Abstract: A signal scrambling method and apparatus, and a signal descrambling method and apparatus are disclosed. In the signal scrambling method, a communications apparatus scrambles a signal by using a scrambling sequence, and sends the scrambled signal. In the signal descrambling method, a communications apparatus receives a signal, and descrambles the signal by using a scrambling sequence. An initial value of the scrambling sequence is determined based on a time unit number corresponding to a frame structure parameter used for transmitting the signal, so that different scrambling sequences can be used to scramble signals that are transmitted by using different frame structure parameters. Therefore, interference randomization can be implemented for signal scrambling, and this can be applicable to various application scenarios in 5G NR to improve performance.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: April 6, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Ting Wang, Yuanjie Li, Hao Tang, Zhenfei Tang
  • Patent number: 10972321
    Abstract: A baseband processing unit includes a baseband processor configured to receive a plurality of component carriers of a radio access technology wireless service, and a delta-sigma digitization interface configured to digitize at least one carrier signal of the plurality of component carriers into a digitized bit stream, for transport over a transport medium, by (i) oversampling the at least one carrier signal, (ii) quantizing the oversampled carrier signal into the digitized bit stream using two or fewer quantization bits.
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: April 6, 2021
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Jing Wang, Luis Alberto Campos, Zhensheng Jia
  • Patent number: 10965506
    Abstract: A data processing apparatus maps input symbols to be communicated onto a predetermined number of sub-carrier signals of an Orthogonal Frequency Division Multiplexed (OFDM) symbol. The data processor includes an interleaver memory which reads-in the predetermined number of data symbols for mapping onto the OFDM sub-carrier signals. The interleaver memory reads-out the data symbols on to the OFDM sub-carriers to effect the mapping, the read-out being in a different order than the read-in, the order being determined from a set of addresses, with the effect that the data symbols are interleaved on to the sub-carrier signals. The set of addresses are generated from an address generator which comprises a linear feedback shift register and a permutation circuit.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: March 30, 2021
    Assignee: Sony Corporation
    Inventors: Samuel Asangbeng Atungsiri, Matthew Paul Athol Taylor, John Nicholas Wilson
  • Patent number: 10965406
    Abstract: Methods described herein are for wireless communication systems. One aspect of the invention is directed to a method for a HARQ process, in which the HARQ process includes a first transmission of an encoder packet and at least one retransmission. The method involves allocating a transmission resource for each respective transmission. The method involves transmitting control information from a base station to a mobile station for each respective transmission. The control information includes information to uniquely identify the HARQ process and an identification of one of a time resource, a frequency resource and a time and frequency resource that is allocated for the transmission. In some embodiments of the invention, specific control information is signalled from a base station to a mobile station to enable RAS-HARQ operation. In some embodiments of the invention, retransmission signaling in included as part of regular unicast signaling used for both first transmission and retransmissions.
    Type: Grant
    Filed: December 8, 2019
    Date of Patent: March 30, 2021
    Assignee: Apple Inc.
    Inventors: Mo-han Fong, Sophie Vrzic, Robert Novak, Jun Yuan, Dong-Sheng Yu
  • Patent number: 10966166
    Abstract: Disclosed here is a method of a network access point configured to operate in a wireless network. The wireless network comprises at least one wideband channel. The wireless network further comprises one or more wideband terminals configured to transmit and receive in the wideband channel, and one or more narrowband terminals configured to transmit and receive in one or more narrowband channels comprised within the wideband channel. The method comprises initiating a downlink transmission for at least one of the one or more wideband terminals and for a first narrowband terminal and transmitting a preamble over the wideband channel for synchronization of the at least one wideband terminal and the at least one narrowband terminal, wherein a first transmission power of the preamble in a first narrowband channel comprised within the wideband channel is higher than a second transmission power of the preamble in the remainder of the wideband channel not comprising the one or more narrowband channels.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: March 30, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ)
    Inventors: Thomas Olsson, Leif Wilhelmsson
  • Patent number: 10965432
    Abstract: Methods and devices enable a fine synchronization related to a data transmission on a physical channel. A fine timing reference signal is occasionally transmitted to the data transmission recipient using one of time-frequency resources in a recipient-specific pattern.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: March 30, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Robert Baldemair, Eleftherios Karipidis, Stefan Parkvall, Henrik Sahlin
  • Patent number: 10965413
    Abstract: An Orthogonal Frequency Division Multiple Access (OFDMA) frame communicated over a 20 MegaHertz (MHz) channel may include eight 26-tone resource units (RUs), one 26-tone bifurcated RU, and a direct current (DC) region. The eight 26-tone RUs may include twenty-six consecutive data and pilot tones, and the bifurcated 26-tone RU may be split into two 13-tone portions each of which include thirteen consecutive data and pilot tones. The DC region may include seven null tones. In one example, the DC region of the 20 MHz MU-OFDMA frame consists of three DC tones and four null-data tones.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: March 30, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jung Hoon Suh, Osama Aboul-Magd
  • Patent number: 10965352
    Abstract: An apparatus includes a first communication device with multiple antennas, operably coupled to a processor and configured to access a codebook of transformation matrices. The processor generates a set of symbols based on an incoming data, and applies a permutation to each of the symbols to produce a set of permuted symbols. The processor transforms each of the permuted symbols based on at least one primitive transformation matrix, to produce a set of transformed symbols. The processor applies, to each of the transformed symbols, a precode matrix selected from the codebook of transformation matrices to produce a set of precoded symbols. The codebook of transformation matrices is accessible to a second communication device. The processor sends a signal to cause transmission, to the second communication device, of multiple signals, each representing a precoded symbol from the set of precoded symbols, each of the signals transmitted using a unique antenna from the plurality of antennas.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: March 30, 2021
    Assignee: Rampart Communications, Inc.
    Inventor: Matthew Brandon Robinson
  • Patent number: 10958488
    Abstract: This application provides a signal transmission method and system, and relates to the field of communications technologies. The system includes an equalization module, a first decoder, and a feedback module. The equalization module includes at least two multi-symbol detectors. The feedback module is connected to the first decoder and the at least two multi-symbol detectors. The equalization module performs equalization processing on convolutional data flows to obtain an equalized data flow. In this process, each multi-symbol detector performs multi-symbol detection processing on a convolutional data flow input into the multi-symbol detector. The first decoder decodes the equalized data flow to obtain a decoded data flow. The feedback module feeds back a feedback data flow to the at least two multi-symbol detectors. The equalization module performs equalization processing on the convolutional data flows based on the feedback data flow.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: March 23, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Zhiyu Xiao, Mo Li
  • Patent number: 10958383
    Abstract: Certain aspects of the present disclosure generally relate to wireless communications and, more particularly, to methods and apparatus for rate-matching a stream of bits encoded using polar codes. An exemplary method generally includes determining, based on a time of a transmission, a redundancy version (RV) of data to be transmitted in the transmission and transmitting the determined RV of the data via a wireless medium at the time.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: March 23, 2021
    Assignee: Qualcomm Incorporated
    Inventors: Chong Li, Chih-Ping Li, Jing Jiang
  • Patent number: 10958303
    Abstract: A radio communication apparatus includes spreading circuitry that spreads a response signal using a first set of orthogonal sequences to produce a spread response signal. Each orthogonal sequence in the first set has a first length. The spreading circuitry also spreads a reference signal using a second set of orthogonal sequences to produce a spread reference signal. Each orthogonal sequence in the second set has a second length that is shorter than the first length. A radio transmitter transmits the spread response signal and the spread reference signal.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: March 23, 2021
    Assignee: Optis Wireless Technology, LLC
    Inventors: Seigo Nakao, Daichi Imamura, Akihiko Nishio, Masayuki Hoshino
  • Patent number: 10959234
    Abstract: Provided is an integrated circuit that calculates a power headroom (PHR) and that can preclude the recognition mismatch in which the reference formats of different UL grants are recognized between a wireless communication terminal apparatus and a wireless communication base station apparatus. For the PHR calculation of a PUSCH in a CC in which no UL grant is present, a UL grant, which was used for calculating the PHR in another CC having the same subframe number as the PUSCH, is used. For example, as to a subframe number=#1, the UL grant of CC #0 is used for calculating the PHR of CC #2 in which no UL grant is present.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: March 23, 2021
    Assignee: SUN PATENT TRUST
    Inventors: Shinsuke Takaoka, Takashi Iwai
  • Patent number: 10951294
    Abstract: A transmission apparatus includes M signal processors that respectively generate modulated signals directed to M reception apparatuses, M being an integer equal to or greater than 2, and an antenna section. Each signal processor modulates a first bit sequence made up of two bits to generate a first modulated signal and a second modulated signal, and modulates a second bit sequence made up of other two bits to generate a third modulated signal and a fourth modulated signal, in a case of transmitting multiple streams to a corresponding one of the M reception apparatuses. The antenna section includes a first antenna that transmits the first modulated signal and the third modulated signal and a second antenna that transmits the second modulated signal and the fourth modulated signal. At least either the signals transmitted from the first antenna or the signals transmitted from the second antenna are phase-changed signals.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: March 16, 2021
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Yutaka Murakami, Tomohiro Kimura, Mikihiro Ouchi
  • Patent number: 10951288
    Abstract: The present disclosure relates to beam training sequence design methods and apparatus. One example method includes generating NT beam training sequences, where each beam training sequence includes a cyclic prefix and (2√óN) Golay sequences, each Golay sequence is with a length of L, and the NT beam training sequences are orthogonal to each other, and sending the NT beam training sequences using NT transmit antennas, where each transmit antenna of the NT transmit antennas sends one beam training sequence of the NT beam training sequences.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: March 16, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Di Yuan, Qingchun Chen, Min Yan
  • Patent number: 10951283
    Abstract: Methods, systems, and devices for wireless communications are described. In some cases, a user equipment (UE) may use multiple antenna ports to communicate with multiple transmission/reception points (TRPs), and each antenna port may correspond to a spatial dimension along which wireless communications may be transmitted. The UE may transmit a first sounding reference signal (SRS) to a serving TRP to aid the serving TRP in determining a subset of spatial dimensions available to the UE along which to transmit downlink transmissions. Upon receiving a downlink transmission from the serving TRP along the subset of spatial dimensions as determined by the serving TRP, the UE may transmit a second SRS to a neighboring TRP to indicate the subset of spatial dimensions. The neighboring TRP avoid transmitting downlink transmissions to the UE or to other UEs along the subset of spatial dimensions, thereby mitigating interference along the subset of spatial dimensions.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: March 16, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Gokul Sridharan, Jay Kumar Sundararajan, Yi Huang, Wei Yang, Joseph Binamira Soriaga
  • Patent number: 10951453
    Abstract: Methods, systems, and devices for wireless communications are described for configuration aspects of a tracking reference signal in New Radio. A base station may select a first burst duration and a second burst duration for a tracking reference signal (TRS) burst, the first burst duration being different from the second burst duration, and may transmit configuration information indicating the first burst duration and the second burst duration to a user equipment (UE). The base station may transmit a first TRS burst having the first burst duration and a second TRS burst having the second burst duration. The UE may detect the first TRS burst having the first burst duration and the second TRS burst having the second burst duration based at least in part on the configuration information, and perform resource tracking based at least in part on the detected first TRS burst and the second TRS burst.
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: March 16, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Wooseok Nam, Tao Luo, Alexandros Manolakos, Heechoon Lee, Yang Yang, Peter Gaal
  • Patent number: 10951452
    Abstract: A transmitter module for a broadband data transmission system for radio communications, comprising at least one polyphase FFT filter bank is described. The at least one polyphase FFT filter bank is established as a synthesis polyphase FFT filter bank, wherein the at least one polyphase FFT filter bank comprises several filter units, wherein the transmitter module is configured to generate a transmission signal by an orthogonal frequency division multiplexing technique, for example by a shaped orthogonal frequency division multiplexing. Moreover, a receiver module for a broadband data transmission system and a data transmission system are described.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: March 16, 2021
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventor: Thomas Valten
  • Patent number: 10952211
    Abstract: Provided is a radio communication base station device which can prevent lowering of use efficiency of a channel communication resource for performing a frequency diversity transmission when simultaneously performing a frequency scheduling transmission and the frequency diversity transmission in a multicarrier communication. In the device, a modulation unit (12) executes a modulation process on Dch data after encoded so as to generate a Dch data symbol. A modulation unit (22) executes a modulation process on the encoded Lch data so as to generate an Lch data symbol. An allocation unit (103) allocates the Dch data symbol and the Lch data symbol to respective subcarriers constituting an OFDM symbol and outputs them to a multiplexing unit (104). Here, when a plurality of Dch are used for a Dch data symbol of one mobile station, the allocation unit (103) uses Dch of continuous channel numbers.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: March 16, 2021
    Assignee: Panasonic Corporation
    Inventors: Akihiko Nishio, Christian Wengerter, Hidetoshi Suzuki, Masaru Fukuoka
  • Patent number: 10952144
    Abstract: This disclosure relates to techniques for opportunistically depowering receiver chains of a wireless device. Based on received control information, a device may determine a depowering time. For example, the device may determine a minimum number of symbols of the payload channel that will provide an effective spectral efficiency less than a supportable spectral efficiency of the payload channel. The depowering time may be determined as a time upon receipt of the determined minimum number of symbols. The device may determine whether to perform a depowering procedure, based upon the determined depowering time. In response to determining to perform the depowering procedure, the device may depower an RF receiver of the device at the depowering time, wherein the depowering time is prior to the end of the payload channel. The device may decode the payload channel based on a portion of the payload channel received by the RF receiver.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: March 16, 2021
    Assignee: Apple Inc.
    Inventors: Junsung Lim, Youngjae Kim, Johnson O. Sebeni
  • Patent number: 10944612
    Abstract: A method includes receiving an Orthogonal Frequency Division Multiplexing (OFDM) signal comprising a plurality of Doppler-shifted OFDM subcarriers and determining frequency-shift data corresponding to the plurality of Doppler-shifted OFDM subcarriers. The determining includes calculating frequency-shift data for each Doppler-shifted OFDM subcarrier of the plurality of Doppler-shifted OFDM subcarriers, thereby yielding a plurality of subcarrier-specific frequency-shift values and calculating an average of the plurality of subcarrier-specific frequency-shift values. The method further includes frequency shifting each subcarrier of the plurality of Doppler-shifted OFDM subcarriers by a value based on the determined frequency-shift data multiplied by a frequency index of each subcarrier.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: March 9, 2021
    Assignee: Conversant Intellectual Property Management Inc.
    Inventors: Hanwu Hu, Nima Ahmadvand
  • Patent number: 10945158
    Abstract: In wireless communications for a 20 megahertz (MHz) channel bandwidth, a first device may determine a high efficiency long training field (HE-LTF) mode. The first device may generate an HE-LTF symbol by using a portion or an entirety of an HE-LTF sequence corresponding to the channel bandwidth and HE-LTF mode. The first device may transmit, in the channel bandwidth, a high efficiency physical layer protocol data unit (HE PPDU) that includes the HE-LTF symbol. A second device may receive, in the 20 MHz channel bandwidth, a downlink HE PPDU that includes an HE-LTF symbol. The second device may obtain, from the HE-LTF symbol, a portion or an entirety of an HE-LTF sequence corresponding to the channel bandwidth and an HE-LTF mode of the HE-LTF symbol. The downlink HE PPDU may be the HE PPDU from the first device. Other methods, apparatus, and computer-readable media are also disclosed.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: March 9, 2021
    Assignee: NEWRACOM, INC.
    Inventors: Daewon Lee, Sungho Moon, Yujin Noh, Minho Cheong
  • Patent number: 10944507
    Abstract: A signal transmission method is performed by a base station. The method includes: determining, a first carrier signal that is to be sent in a first cell on a first carrier and a second carrier signal that is to be sent in a second cell on a second carrier; mapping, the first carrier signal and the second carrier signal to N physical ports of an RRU, so that within a same OFDM symbol, a type B symbol used to transmit a pilot in the first carrier signal and a type B symbol used to transmit a pilot in the second carrier signal are mapped to different physical ports, and a total power of signals sent on each of N physical channels is not greater than a rated power of the RRU; and sending, the first carrier signal and the second carrier signal through the N physical ports.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: March 9, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Yu Wu, Xiaolong Zhu, Wei Chen, Rong Wan, Shuai Chen
  • Patent number: 10944502
    Abstract: Systems, apparatuses and methods described herein provide a method for padding a signal extension of orthogonal frequency-division multiplexing (OFDM) symbols. A transceiver may obtain a plurality of data symbols for transmission, and determine that a number of information bits for a last symbol of the plurality of data symbols is not an integer value. A special padding rule may be applied to add padding bits to the last symbol. A number of coded bits for the last symbol may be determined when the number of information bits for the last symbol has changed, and the plurality of data symbols for data transmission may be encoded based on the determined number of coded bits for the last symbol.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: March 9, 2021
    Assignee: NXP USA, INC.
    Inventors: Yakun Sun, Hongyuan Zhang, Rui Cao, Sudhir Srinivasa
  • Patent number: 10944479
    Abstract: An optical module includes a photoelectric converter configured to receive an optical signal having an intensity that changes at one of a first frequency or a second frequency that is higher than the first frequency, and convert the optical signal into a current signal corresponding to the intensity of the optical signal; a signal processor configured to acquire, when the optical signal has the intensity that changes at the first frequency, wavelength information set on a transmitting side based on a ratio between a plurality of signal intensities included in the current signal relating to the optical signal having the intensity that changes at the first frequency; and a decoder configured to generate, when the optical signal has the intensity that changes at the second frequency, communication data from the current signal relating to the optical signal having the intensity that changes at the second frequency.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: March 9, 2021
    Assignee: Lumentum Japan, Inc.
    Inventors: Koki Sato, Masaaki Furukawa, Keiichi Murakami, Takuya Sato