Quadrature Carriers Patents (Class 370/206)
  • Patent number: 11229028
    Abstract: The present technology provides a computer-implemented method and system for performing frequency selective scheduling between a user equipment (UE) and a base station. The UE selects a sub-band within a predetermined system bandwidth based on observed radio conditions. The UE then communicates the selected sub-band to the base station. The base station then selects a LTE resource block having a frequency range falling within the sub-band. The selected resource block is then used for communication between the base station and the UE. The process may be repeated at a frequency related to the channel coherence.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: January 18, 2022
    Assignee: SIERRA WIRELESS, INC.
    Inventors: Gustav Gerald Vos, Ramon Khalona, Steven John Bennett
  • Patent number: 11202322
    Abstract: Disclosed in embodiments of the present disclosure are a random access method and terminal device. The method includes: transmitting, by a terminal device, a plurality of preambles to a network device in one random access procedure; and monitoring, by the terminal device, a Random Access Response (RAR) to at least one preamble in the plurality of preambles in at least one RAR window.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: December 14, 2021
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventor: Hai Tang
  • Patent number: 11190625
    Abstract: The present technology relates to a reception device, a data processing method, and a transmission/reception system capable of shortening time to output a packet. The reception device receives a transmission signal obtained by processing a multiplexed stream including a plurality of packets, analyzes transmission control information for controlling transmission of the transmission signal, decodes the transmission signal on the basis of an analysis result of the transmission control information, analyzes the multiplexed stream obtained by decoding the transmission signal and sets packet division information for dividing the packets from the multiplexed stream, the packet division information according to at least one of the analysis result of the transmission control information or an analysis result of the multiplexed stream, and divides the multiplexed stream into the packets on the basis of the set packet division information.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: November 30, 2021
    Assignee: SONY CORPORATION
    Inventors: Satoshi Okada, Yuichi Hirayama, Hirofumi Maruyama
  • Patent number: 11146422
    Abstract: An OFDM communication system, includes: a smoothing filter; an equalizer; processors; and a memory containing instructions causing the processors to perform steps of: providing to the smoothing filter a plurality of channel response estimates, each corresponding to a symbol and a channel; receiving a plurality of filtered channel response estimates, each corresponding to a value of the channel response estimate; calculating a plurality of error vectors, each having a plurality of error values, each error value being a difference between the channel response estimate and the filtered channel response estimate; obtaining a mean error vector having a plurality of mean error values, each corresponding to a subcarrier for all symbols; calculating a power of each subcarrier based on the mean error values of the mean error vector; comparing the power of each subcarrier to a threshold power; and adjusting the bandwidth of the smoothing filter based on the comparison.
    Type: Grant
    Filed: July 29, 2020
    Date of Patent: October 12, 2021
    Assignee: U-BLOX AG
    Inventor: Dimitris Kalogiros
  • Patent number: 11140009
    Abstract: The invention provides a frequency offset estimation method for an OFDM-IM system. The method includes: S1. performing preliminary frequency offset compensation on a received signal subjected to non-uniform frequency offset by using a two-step method of: (1) resampling and down conversion; and (2) unified compensation for residual frequency offset ?, wherein in the step (2), a sum of energy of null sub-carriers is used as a cost function, an initial estimation value of ? is obtained by one-dimensional search, and the preliminary compensation is performed; S2. estimating positions of non-activated sub-carriers in the OFDM-IM system by using the signal subjected to the preliminary compensation; and S3. assigning certain weights to the estimated sub-carriers, adding energy of the estimated sub-carriers into the cost function according to different weights, obtaining a final estimation value of ? by the one-dimensional search performed on ?, and performing secondary compensation.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: October 5, 2021
    Assignee: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
    Inventors: Fangjiong Chen, Zhibin Yang, Jing Liu, Fei Ji, Hua Yu
  • Patent number: 11140011
    Abstract: In embodiments of the presently described subject matter, two efficient PAPR reduction methods for OFDM signals based upon the principle of tone reservation and building upon the clipping noise analysis presented in “Analysis of clipping noise and tone reservation algorithms for peak reduction in OFDM systems,” L. Wang and C. Tellambura, IEEE Trans. Veh. Technol., vol. 57, pp. 1675-1694, May 2008 are provided, each comprising two stages. The first stage is performed offline to prepare a set of cancellation signals based on the settings of the OFDM system. In particular, these cancellation signals are constructed to cancel signals at different levels of maximum instantaneous power that are above a predefined threshold. The second stage is performed online and in an iterative manner to reduce the peaks of OFDM symbols by using the cancellation signals constructed in the first stage.
    Type: Grant
    Filed: February 18, 2020
    Date of Patent: October 5, 2021
    Assignee: Vecima Networks Inc.
    Inventors: Quang Nguyen, Ha H. Nguyen, Brian Berscheid, Eric Salt
  • Patent number: 11139589
    Abstract: Systems, methods, and apparatus for a polarization uniqueness manipulation apparatus (PUMA) are disclosed. In one or more embodiments, an antenna apparatus (e.g., a PUMA) comprises a receive antenna to receive a signal with a first polarization. In one or more embodiments, the antenna apparatus is configured to passively modify the first polarization of the signal to a second polarization. The antenna apparatus further comprises a transmit antenna to transmit the signal with the second polarization. In at least one embodiment, the receive antenna is communicatively coupled to the transmit antenna. In one or more embodiments, the receive antenna and the transmit antenna are each separate patch antennas that are mounted on a substrate of the antenna apparatus at different orientations from one another. In at least one embodiment, the second polarization is dependent upon the different orientations of the receive antenna and the transmit antenna.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: October 5, 2021
    Assignee: The Boeing Company
    Inventors: Ted R. Dabrowski, Robert A. Smith
  • Patent number: 11044130
    Abstract: To provide a device, a method, and a program which are capable of further improving decoding accuracy in a case in which multiplexing/multiple-access using non-orthogonal resources is performed. A device includes: a processing unit configured to apply a second constellation corresponding to a symbol position of a first bit string in a first constellation applied to the first bit string, to a second bit string in regard to a plurality of bit strings to be multiplexed for each of transmission signal sequences to be multiplexed in resource blocks for which at least a part of frequency resources or time resources overlap.
    Type: Grant
    Filed: December 1, 2019
    Date of Patent: June 22, 2021
    Assignee: SONY CORPORATION
    Inventors: Ryota Kimura, Hiroki Matsuda
  • Patent number: 11039151
    Abstract: Methods and systems are disclosed for a mobile device to decode video based on available power and/or energy. For example, the mobile device may receive a media description file (MDF) from for a video stream from a video server. The MDF may include complexity information associated with a plurality of video segments. The complexity information may be related to the amount of processing power to be utilized for decoding the segment at the mobile device. The mobile device may determine at least one power metric for the mobile device. The mobile device may determine a first complexity level to be requested for a first video segment based on the complexity information from the MDF and the power metric. The mobile device may dynamically alter the decoding process to save energy based on the detected power/energy level.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: June 15, 2021
    Assignee: VID SCALE, Inc.
    Inventors: Yuwen He, Yan Ye, Yong He, George W. McClellan, Eun Seok Ryu
  • Patent number: 11025282
    Abstract: A transmitter is provided. The transmitter includes: a low density parity check (LDPC) encoder configured to encode input bits to generate an LDPC codeword including the input bits and parity bits; a repeater configured to select at least a part of bits constituting the LDPC codeword and add the selected bits after the input bits; and a puncturer configured to puncture at least a part of the parity bits.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: June 1, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Se-ho Myung, Kyung-joong Kim, Hong-sil Jeong
  • Patent number: 11012425
    Abstract: Devices and techniques for replay protection nonce generation are described herein. A hash, of a first length, can be produced from a first input. A first subset of the hash can be extracted as a selector. A second subset of the hash can be selected using the selector. Here, the second subset has a second length that is less than the first length. The second subset can be transmitted as a nonce for a freshness value in a replay protected communication.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: May 18, 2021
    Assignee: Micron Technology, Inc.
    Inventors: Antonino Mondello, Alberto Troia
  • Patent number: 11012095
    Abstract: A method of generating interleaved symbols in a multiplexed data steam for a satellite broadcasting application to a plurality of receivers, includes allocating a plurality of data programs to a plurality of primary multiplexers according to a load balancing scheme; encoding in each primary multiplexer a plurality of data programs according to a coding scheme at a predefined code rate for generating encoded frames; and generating super frames in each primary multiplexer.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: May 18, 2021
    Assignee: EUTELSAT S A
    Inventors: Ernst Eberlein, Antonio Arcidiacono, Daniele Vito Finocchiaro
  • Patent number: 11005690
    Abstract: A device and method of operation for digital compensation of dynamic distortion. The transmitter device includes at least a digital-to-analog converter (DAC) connected to a lookup table (LUT), a first shift register, and a second shift register. The method includes iteratively adjusting the input values via the LUT to induce changes in the DAC output that compensate for dynamic distortion, which depends on precursors, current cursors, and postcursors. More specifically, the method includes producing and capturing average output values for each possible sequence of three symbols using the shift register and LUT configuration. Then, the LUT is updated with estimated values to induce desired output values that are adjusted to eliminate clipping. These steps are performed iteratively until one or more check conditions are satisfied. This method can also be combined with techniques such as equalization, eye modulation, and amplitude scaling to introduce desirable output signal characteristics.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: May 11, 2021
    Assignee: INPHI CORPORATION
    Inventors: Dragos Cartina, Ankit Bhargav, Jamal Riani, Wen-Sin Liew, Yu Liao, ChangFeng Loi
  • Patent number: 10999857
    Abstract: Methods, systems, and devices for wireless communication are described. In particular, a backhaul network that may be established between access nodes and/or base stations is shown and described. To support communications via the backhaul network, a synchronized frame structure and unique network topologies may be established. Resources may be allocated to different wireless communication links based on the synchronized frame structure. Occupancy/availability indications are shown and described, which enable the local redistribution of resources to account for variations in signal quality and/or variations in traffic experienced by the backhaul network.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: May 4, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Karl Georg Hampel, Junyi Li, Sundar Subramanian, Muhammad Nazmul Islam, Navid Abedini
  • Patent number: 10972242
    Abstract: A method and user equipment for performing an uplink transmission in a wireless communication system, are discussed. The method includes allocating transmission power to a first uplink transmission and a second uplink transmission when a total power in a transmission period including at least one or more OFDM symbols exceeds maximum power, wherein each of the first and second uplink transmissions is one of physical uplink shared channel (PUSCH) transmission, physical uplink control channel (PUCCH) transmission, physical random access channel (PRACH) transmission and sounding reference signal (SRS) transmission; and performing the first and second uplink transmissions according to the allocated transmission power, wherein the allocation of the transmission power is performed according to priority information.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: April 6, 2021
    Assignee: LG Electronics Inc.
    Inventors: Joon Kui Ahn, Suck Chel Yang, Yun Jung Yi, Dong Youn Seo
  • Patent number: 10945290
    Abstract: Systems, apparatuses, and methods are described for wireless communications. A base station may configure a plurality of random access configurations for a wireless device on different uplink carriers, such as a supplemental uplink carrier and a non-supplemental uplink carrier. The wireless device may fall back to a second uplink carrier if a random access procedure fails on the first uplink carrier.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: March 9, 2021
    Assignee: Comcast Cable Communications, LLC
    Inventors: Hyoungsuk Jeon, Esmael Dinan, Kyungmin Park, Alireza Babaei, Hua Zhou
  • Patent number: 10911093
    Abstract: Embodiments described and shown provide a signal transmission method, a signal receiving method, a related device, and a system. The signal transmission method includes: generating a single-wavelength optical carrier; splitting the single-wavelength optical carrier into N subcarriers having a same wavelength; generating a spreading code corresponding to each of the subcarriers to obtain N spreading codes, where a bandwidth of each of the spreading codes is less than or equal to a preset threshold; deserializing a to-be-transmitted data signal into N sub-data signals; modulating the N subcarriers based on the N sub-data signals and the N spreading codes, to obtain N modulation signals; and combining the N modulation signals into one combined signal, and outputting the combined signal.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: February 2, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Yi Yu, Yuanda Huang, Liangchuan Li
  • Patent number: 10892930
    Abstract: Provided are a communication method based on a peak-to-average ratio (PAPR) and a transmission apparatus and a receive apparatus using the same and a communication method based on a peak-to-average ratio (PAPR) by a transmission apparatus according to an exemplary embodiment of the present disclosure includes: obtaining each of PAPR values corresponding to respective data symbols from a lookup table having a unique PAPR value; Generating a synchronization signal configured in a random sequence based on a the PAPR value of each data symbol; and transmitting the synchronization signal.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: January 12, 2021
    Assignee: Research & Business Foundation Sungkyunkwan University
    Inventors: Kang Yoon Lee, Muhammad Riaz Ur Rehman, Truong Thi Kim Nga, Ali Imran, Hamed Abbasi Zadeh, Kwan Tae Kim, Sang Yun Kim, Dong In Kim
  • Patent number: 10873971
    Abstract: An information transmission method includes: receiving a random access preamble sent by user equipment (UE); generating first information according to the received random access preamble, where the first information is information about a random access response to the random access preamble, and the first information includes at least one of the following information: timing advance indication information, indication information of a narrowband resource used for transmission of a control channel, indication information of a subframe used for transmission of the control channel, indication information of a demodulation reference signal scrambling sequence initialization parameter used for transmission of the control channel, indication information of a coverage enhancement level used for transmission of the control channel, or resource allocation information used for transmission of second information, where the second information is information about a response to the first information; and sending the first
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: December 22, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Zheng Yu, Xiangdong Zhang
  • Patent number: 10862607
    Abstract: A method of transmitting data signals comprising a shortened downlink shared channel (sPDSCH) by a base station in a wireless access system supporting an unlicensed band, the method includes performing a carrier sensing to check whether the unlicensed band is in an idle state or not; and transmitting, to a user equipment (UE), the data signals comprising the sPDSCH based on the carrier sensing via the unlicensed band during a channel occupancy time; wherein the sPDSCH is transmitted in a first time interval or a second time interval following the first time interval, wherein the first time interval starts from a starting point of the transmission of the data signal, and wherein the second time interval ends at a subframe boundary of a licensed band.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: December 8, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Seonwook Kim, Joonkui Ahn, Kijun Kim, Suckchel Yang, Hanbyul Seo, Seungmin Lee, Hanjun Park, Hyangsun You, Yunjung Yi
  • Patent number: 10827515
    Abstract: A sequence-based signal processing method and apparatus are provided. A sequence meeting a requirement for sending a signal by using a physical uplink control channel (PUCCH) is determined, where the sequence is a sequence {fn} consisting of N elements, fn is an element in the sequence {fn}, and the determined sequence {fn} is a sequence meeting a preset condition; then, the N elements in the sequence {fn} are respectively mapped to N subcarriers to generate a first signal; and the first signal is sent. By using the determined sequence, when a signal is sent by using a PUCCH, a low sequence correlation can be maintained, and a relatively small peak-to-average power ratio (PAPR) value and cubic metric (CM) value can also be maintained, thereby meeting a requirement of a communication application environment in which a signal is sent by using a PUCCH.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: November 3, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Bingyu Qu, Hao Sun
  • Patent number: 10826657
    Abstract: Embodiments are provided for supporting variable sub-carrier spacing and symbol duration for transmitting OFDM or other waveform symbols and associated cyclic prefixes. The symbol duration includes the useful symbol length and its associated cyclic prefix length. The variable sub-carrier spacing and symbol duration is determined via parameters indicating the sub-carrier spacing, useful symbol length, and cyclic prefix length. An embodiment method, by a network or a network controller, includes establishing a plurality of multiple access block (MAB) types defining different combinations of sub-carrier spacing and symbol duration for waveform transmissions. The method further includes partitioning a frequency and time plane of a carrier spectrum band into a plurality of MAB regions comprising frequency-time slots for the waveform transmissions. The MAB types are then selected for the MAB regions, wherein one MAB type is assigned to one corresponding MAB region.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: November 3, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jianglei Ma, Ming Jia
  • Patent number: 10805455
    Abstract: A connection manager manages connections for associated user devices by determining whether an incoming connection has been answered at a user device, and if so then generating and transmitting silencing commands to associated user devices using first and second wireless communication modes, with one mode being faster. Connections can comprise phone calls, and modes can comprise push and Bluetooth® messaging. The connection manager can instruct device outputs to provide connection alerts, limited to visual alerts when an associated user device is active, listen for associated user device communications, and instruct device outputs to stop providing alerts when a silencing command is received. Further, a connection manager can receive a signal regarding a headset status, route an outside connection from a phone to the headset when the headset is active or to another device when the headset is not active, detect a change in headset status, and reroute the connection accordingly.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: October 13, 2020
    Assignee: Apple Inc.
    Inventors: Keith W. Rauenbuehler, Nicholas M. Fraioli
  • Patent number: 10790953
    Abstract: Disclosed are a method for transmitting and receiving between a base station (BS) and a terminal in a wireless communication system, and a device supporting the same. Specifically, disclosed are a method for transmitting, by a base station, a plurality of downlink data channels in a subframe according to a time divisional multiplexing (TDM), and operating a terminal in response to the transmission, and a device supporting the same method.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: September 29, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Kijun Kim, Suckchel Yang, Joonkui Ahn, Eunsun Kim
  • Patent number: 10771122
    Abstract: Methods and apparatus for discovering codeword decoding order in a serial interference cancellation receiver using reinforcement learning. In an embodiment, a method is provided for decoding codewords in a multiple-input-multiple-output (MIMO) communication network. The method includes determining a decoding order based on a state space and a decoding policy, decoding selected codewords based on the decoding order, updating the decoding policy based on the decoding results and the state space, updating the state space based on decoding results, and updating the decoding order based on the state space and the decoding policy.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: September 8, 2020
    Assignee: Marvell World Trade Ltd.
    Inventor: Kalpendu Ratanshi Pasad
  • Patent number: 10742457
    Abstract: Embodiments of the present disclosure describe apparatuses, systems, and methods for initialization of pseudo noise (PN) sequences for reference signals and data scrambling. Some embodiments may be to initialize the first M-sequence of the PN sequence with a fixed value; and initialize the second M-sequence of the PN sequence with a compressed value. Some embodiments may be to initialize the first M-sequence of the PN sequence with a fixed value; initialize the second M-sequence of the PN sequence with a part of the initialization parameters; and shift the PN sequence by another part of the initialization parameters. Some embodiments may be to initialize the first M-sequence of the PN sequence with a part of the initialization parameters; and initialize the second M-sequence of the PN sequence with another part of the initialization parameters. The embodiments may lead to a more efficient hardware design.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: August 11, 2020
    Assignee: Apple Inc.
    Inventors: Yongjun Kwak, Avik Sengupta, Dae Won Lee, Alexei Davydov, Seunghee Han, Gregory Morozov, Sameer Pawar
  • Patent number: 10720946
    Abstract: A radio frequency transmitter includes a digital-to-analog converter (DAC), a load circuit, and a modulator circuit. The load circuit is coupled to an output of the DAC. The modulator circuit is coupled to the DAC and the load circuit. The modulator circuit includes a driver circuit configured to provide a bias voltage to the load circuit, and an amplifier configured to receive an output of the DAC biased by an output of the load circuit.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: July 21, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Jagdish Chand, Subhashish Mukherjee
  • Patent number: 10715368
    Abstract: A communication device generates a first portion of a physical layer (PHY) preamble of a PHY data unit to include a first plurality of orthogonal frequency division multiplexing (OFDM) symbols. Each OFDM symbol of the first plurality of OFDM symbols is modulated on at most X OFDM subcarriers, where X is a positive integer greater than one. The communication device generates a second portion of the PHY preamble to include a second plurality of OFDM symbols. Each OFDM symbol of the second plurality of OFDM symbols is modulated on at most N*X OFDM subcarriers, where N is a positive integer greater than one. The communication device generates a PHY data portion of the PHY data unit to include one or more third OFDM symbols. Each third OFDM symbol is modulated on at most N*X OFDM subcarriers. The communication device transmits the PHY data unit via the wireless communication channel.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: July 14, 2020
    Assignee: NXP USA, INC.
    Inventors: Hongyuan Zhang, Yakun Sun, Mingguang Xu, Rui Cao, Hui-Ling Lou
  • Patent number: 10708012
    Abstract: This invention discloses methods and circuits of wideband wireless transmitting and/or receiving by combining multiple RF transmitters and/or receivers, or multiple transceivers, each of which has a narrower bandwidth, e.g., producing a RF transmitter and receiver or a RF transceiver whose signal bandwidth is the sum or approximately the sum, e.g., slightly less than the sum, of the signal bandwidth of the multiple RF transmitters and/or receivers, or multiple RF transceivers. The embodiments apply in wireless communication systems with orthogonal or approximately orthogonal subcarrier type of modulation (OSM), e.g., Orthogonal Frequency Division Multiplexing (OFDM).
    Type: Grant
    Filed: February 9, 2019
    Date of Patent: July 7, 2020
    Assignee: RF DSP Inc.
    Inventors: Jason Brent, Dengkui Zhu, Ping Liang
  • Patent number: 10708035
    Abstract: A signal processing device includes: a filter configured to perform an adaptive equalization process of a signal, on a basis of a filter coefficient; an updater configured to update the filter coefficient, on a basis of amplitude of the signal and a target value of the amplitude; and a corrector configured to correct the target value, on a basis of the amplitude of the signal.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: July 7, 2020
    Assignee: FUJITSU LIMITED
    Inventors: Tomofumi Oyama, Hisao Nakashima
  • Patent number: 10701755
    Abstract: A method for wireless communication includes transmitting at least first and second uplink signals by a UE to first and second virtualized radio units, respectively. The first and second uplink signals are processed by one or more virtual machines shared by both the first and second radio units. The UE switches connection from the first virtualized radio unit to the second virtualized radio unit without a transfer of context information from the first virtualized radio unit to the second virtualized radio unit. A first virtual machine implements at least one of a lower physical layer (PHY-Low), an analog-to-digital converter (ADC), a digital-to-analog converter (DAC), and a radio frequency (RF) transceiver. A second virtual machine implements at least one of a Radio Link Control (RLC) layer, a Medium Access Control (MAC) layer, and a higher physical (PHY-high) layer.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: June 30, 2020
    Assignee: Phazr, Inc.
    Inventor: Farooq Khan
  • Patent number: 10694517
    Abstract: Embodiments disclosed herein relate to methods and systems for providing improved position location (e.g., time-of-arrival) measurement and enhanced position location in wireless communication systems. In an example method, an access terminal may receive a reference signal in a time slot, the reference signal comprising a sequence of symbols known to a receiver before being received, and may determine, based at least in part on the reference signal, a position location of the access terminal.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: June 23, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Peter John Black, Matthew Stuart Grob
  • Patent number: 10694522
    Abstract: A method for receiving an acknowledgement signal by a base station in a wireless communication system and a base station are provided. The method includes transmitting information associated with transmission of a periodic channel quality indication (CQI) signal in an operating bandwidth; receiving a dynamic acknowledgement signal by using a first frequency resource in response to transmission of a downlink data signal, wherein a resource block (RB) allocated for the dynamic acknowledgement signal is determined based on the transmitted information; and receiving a periodic acknowledgement signal by using a second frequency resource in response to transmission of a downlink data signal, wherein the second frequency resource is allocated between the first frequency resource and a third frequency resource allocated for the periodic CQI signal.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: June 23, 2020
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Aris Papasakellariou, Joon-Young Cho
  • Patent number: 10681741
    Abstract: An example method in a user equipment comprises generating a random access preamble signal and transmitting the random access preamble signal. This generating of the random access preamble signal comprises generating a random access preamble signal comprising two or more consecutive preamble symbol groups, each preamble symbol group comprising a cyclic prefix portion and a plurality of identical symbols occupying a single subcarrier of the random access preamble signal. The single subcarrier for at least one of the preamble symbol groups corresponds to a first subcarrier frequency and the single subcarrier for an immediately subsequent one of the preamble symbol groups corresponds to a second subcarrier frequency.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: June 9, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Xingqin Lin, Ansuman Adhikary, Asbjörn Grövlen, Dennis Hui, Niklas Johansson, Yutao Sui, Mårten Sundberg, Yi-Pin Eric Wang
  • Patent number: 10660121
    Abstract: A sequence-based signal processing method and apparatus are provided. A sequence meeting a requirement for sending a signal by using a physical uplink control channel (PUCCH) is determined, where the sequence is a sequence {fn} consisting of N elements, fn is an element in the sequence {fn}, and the determined sequence {fn} is a sequence meeting a preset condition; then, the N elements in the sequence {fn} are respectively mapped to N subcarriers to generate a first signal; and the first signal is sent. By using the determined sequence, when a signal is sent by using a PUCCH, a low sequence correlation can be maintained, and a relatively small peak-to-average power ratio (PAPR) value and cubic metric (CM) value can also be maintained, thereby meeting a requirement of a communication application environment in which a signal is sent by using a PUCCH.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: May 19, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Bingyu Qu, Hao Sun
  • Patent number: 10616021
    Abstract: A method of transmitting a Physical Layer Convergence Procedure (PLCP) frame in a Very High Throughput (VHT) Wireless Local Area Network (WLAN) system includes generating a MAC Protocol Data Unit (MPDU) to be transmitted to a destination station (STA), generating a PLCP Protocol Data Unit (PPDU) by adding a PLCP header, including an L-SIG field containing control information for a legacy STA and a VHT-SIG field containing control information for a VHT STA, to the MPDU, and transmitting the PPDU to the destination STA. A constellation applied to some of Orthogonal Frequency Division Multiplex (OFDM) symbols of the VHT-SIG field is obtained by rotating a constellation applied to an OFDM symbol of the L-SIG field.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: April 7, 2020
    Assignee: Wi-Fi One, LLC
    Inventors: Dae Won Lee, Dong Wook Roh, Byeong Woo Kang, Yong Ho Seok, Yu Jin Noh, Bong Hoe Kim
  • Patent number: 10581455
    Abstract: A packet processing system having a barrel compactor that extracts a desired data subset from an input dataset (e.g. an incoming packet). The barrel compactor is able to selectively shift one or more of the input data units of the input dataset based on individual shift values for those data units. Additionally, in some embodiments one or more of the data units are able to be logically combined to produce a desired logical output unit.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: March 3, 2020
    Assignee: Cavium, LLC
    Inventors: Premshanth Theivendran, Weihuang Wang, Sowmya Hotha, Srinath Atluri
  • Patent number: 10574486
    Abstract: A channel measurement method in a wireless communication system and an apparatus therefor are disclosed. Specifically, a method for measuring a channel by a terminal in the wireless communication system may comprise the steps of: receiving, from a base station, a reference signal on part of antenna ports within a two-dimensional antenna port array; measuring channels for the part of antenna ports on the basis of the reference signal received from the base station; and reconstructing a channel for an antenna port which is not used for transmission of the reference signal within the two-dimensional antenna port array, using the channel measurement result, to reconstruct channels for all antenna ports within the two-dimensional antenna port array.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: February 25, 2020
    Assignee: LG Electronics Inc.
    Inventors: Haewook Park, Jonghyun Park, Kijun Kim
  • Patent number: 10574416
    Abstract: A method and user equipment for performing an uplink transmission in a wireless communication system, are discussed. The method includes allocating transmission power to a first uplink transmission and a second uplink transmission when a total power in a transmission period including at least one or more OFDM symbols exceeds maximum power, wherein each of the first and second uplink transmissions is one of physical uplink shared channel (PUSCH) transmission, physical uplink control channel (PUCCH) transmission, physical random access channel (PRACH) transmission and sounding reference signal (SRS) transmission; and performing the first and second uplink transmissions according to the allocated transmission power, wherein the allocation of the transmission power is performed according to priority information.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: February 25, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Joon Kui Ahn, Suck Chel Yang, Yun Jung Yi, Dong Youn Seo
  • Patent number: 10558261
    Abstract: In one embodiment, a method includes receiving motion data from a motion sensor during a packet-transmission interval of a wireless protocol. The motion data corresponds to a first pre-determined number of samples measured at a first sampling frequency. Each sample is associated with a first timestamp corresponding to a measurement time of that sample during the packet-transmission interval. The method also includes converting the motion data to correspond to a second pre-determined number of samples. The second pre-determined number is fewer than the first pre-determined number. The method also includes determining a second timestamp for each of the second pre-determined number of samples. The second timestamps are within the packet-transmission interval and represent measurement times at a second sampling frequency that is lower than the first sampling frequency. The method also includes combining the converted motion data and the corresponding second timestamps into a first data packet.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: February 11, 2020
    Assignee: Facebook Technologies, LLC
    Inventors: Boyang Zhang, Adrian Brian Ratter, Chengyuan Yan, Jack Hood Profit, Jr., Paul Austin Buckley
  • Patent number: 10554460
    Abstract: To provide a device, a method; and a program which are capable of further improving decoding accuracy in a case in which multiplexing/multiple-access using non-orthogonal resources is performed. A device includes: a processing unit configured to apply a second constellation corresponding to a symbol position of a first bit string in a first constellation applied to the first bit string, to a second bit string in regard to a plurality of bit strings to be multiplexed for each of transmission signal sequences to be multiplexed in resource blocks for which at least a part of frequency resources or time resources overlap.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: February 4, 2020
    Assignee: SONY CORPORATION
    Inventors: Ryota Kimura, Hiroki Matsuda
  • Patent number: 10548171
    Abstract: Provided is a method for performing random access, the method comprising: obtaining information associated with a phase pattern vector set and information associated with a sequence set to be used during a random access process; selecting one phase pattern vector corresponding to the number of repetitive transmissions of an RACH signal, among a plurality of phase pattern vectors included in the phase pattern vector set; transmitting, to a base station, an RACH signal during a time section corresponding to the number of repetitive transmissions of an RACH signal, at a predetermined transmission point in the entire time section corresponding to the maximum number of repetitive transmissions; and receiving, from the base station, an RACH response signal indicating an estimated sequence, an estimated phase pattern vector, and an estimated transmission point.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: January 28, 2020
    Assignee: LG Electronics Inc.
    Inventors: Kilbom Lee, Jiwon Kang, Kitae Kim, Kungmin Park, Heejin Kim
  • Patent number: 10547489
    Abstract: System and method based upon an OFDM symbol, including a cyclic prefix (CP), that is received after being transmitted over a multiple access channel, wherein the CP is removed, and a Hann window is applied to the symbol. FFT is then applied to the Hann windowed symbol to obtain the frequency domain subcarriers. The pilot symbols are filtered accordingly to obtain Hann windowed pilots to estimate effective channel. Inter-carrier interference is calculated and removed.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: January 28, 2020
    Assignee: University of South Florida
    Inventors: Berker Pekoz, Zekeriyya Esat Ankarali, Selcuk Kose, Huseyin Arslan
  • Patent number: 10542542
    Abstract: The present invention provides a cell configuration method of a base station in a mobile communication system supporting Carrier Aggregation (CA) which includes configuring a first cell consisting of at least two sectors formed with different antennas to a terminal, configuring a second cell consisting of at least two sectors formed with different antennas to the terminal, and communicating with the terminal through the first and second cells, wherein one of the first and second cells consists of sectors using same Physical Cell Identifier (PCID) and the other consists of sectors using different PCIDs.
    Type: Grant
    Filed: February 15, 2016
    Date of Patent: January 21, 2020
    Assignees: Samsung Electronics Co., Ltd., DEUTSCHE TELEKOM AG
    Inventors: Joseph Jeon, Jaroslav Holis, Seungjoo Maeng, Chanho An, Seunghee Han
  • Patent number: 10523485
    Abstract: An apparatus for band-limited frequency division multiplexing for uplink transmission to a base station or access point, particularly from an IoT device, comprises a signal modulator to transmit a signal over a set of contiguous equally spaced frequency sub-carriers ranging from a lowest frequency sub-carrier via intermediate sub-carriers to a highest frequency sub-carrier. The signal modulator contains a filter to apply asymmetric filtering over the range of the frequency sub-carriers, thereby to reduce a peak-to-average power ratio of the transmitted signal.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: December 31, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Doron Ezri, Shimon Shilo, Hao Tang, Jiehua Xiao, Jianmin Lu, Ori Shental, Ezer Melzer
  • Patent number: 10469295
    Abstract: In one aspect, an apparatus includes: a mixer to receive a radio frequency (RF) signal and downconvert the RF signal into a second frequency signal; an amplifier coupled to the mixer to amplify the second frequency signal; an image rejection (IR) circuit coupled to the programmable gain amplifier (PGA) to orthogonally correct a gain and a phase of the amplified second frequency signal to output a corrected amplified second frequency signal; and a complex filter to filter the corrected amplified second frequency signal.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: November 5, 2019
    Assignee: SILICON LABORATORIES INC.
    Inventors: John M. Khoury, Navin Harwalkar
  • Patent number: 10461899
    Abstract: A base station and an antenna selection method and apparatus thereof are provided. The antenna selection method includes receiving signals through multiple antennas, measuring channel information from the received signals, determining antennas having received signals whose channel information is higher than or equal to a preset threshold, and combining and processing the signals having received through the determined antennas. As a result, the base station may select an antenna enabling effective uplink communication with a user equipment among multiple antennas.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: October 29, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Ikbeom Lee
  • Patent number: 10454745
    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). The present invention provides a method and a device for cancelling inter-symbol interference in a wireless communication system. A method for a base station in a wireless communication system can comprises the steps of: transmitting multiple synchronous signals through multiple antennas to a terminal; receiving information on a propagation delay difference among the multiple synchronous signals from the terminal; and determining signal transmission timing for each of the multiple antennas on the basis of the information on the propagation delay difference.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: October 22, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyunyong Lee, Jung Ju Kim, Joon-Young Lee
  • Patent number: 10425270
    Abstract: In one aspect, a wireless transmitter forms (1110) a first signal having a first integer number of symbol intervals in each of one or more time intervals of a predetermined length and forms (1120) a second signal having a second integer number of symbol intervals in each of the one or more time intervals of the predetermined length, the second integer number differing from the first integer number. The wireless transmitter simultaneously transmits (1130) the first and second signals in a frequency band, such that the first and second signals are frequency-domain multiplexed in the frequency band and such that a symbol interval starting time in the first signal is aligned with a corresponding symbol interval starting time in the second signal at least once per time interval.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: September 24, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Karl Werner, Robert Baldemair, Håkan Björkegren, Erik Dahlman, Stefan Parkvall
  • Patent number: 10425259
    Abstract: Various communication systems may benefit from identification of devices or systems using a channel. For example, certain communication systems may benefit from non-orthogonal cover code for co-channel network isolation. A method can include deciding a cover code index. The method can also include signaling the cover code index to a user equipment. The cover code index can correspond to a non-orthogonal cover code that is created in a network-specific manner.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: September 24, 2019
    Assignee: NOKIA TECHNOLOGIES OY
    Inventor: Mika Rinne