Receiver Patents (Class 375/147)
  • Patent number: 11323979
    Abstract: A broadcast manager identifies a time interval that encompasses paging windows for a plurality of user equipment. The plurality of user equipment operate according to a plurality of discontinuous reception cycles that include sleep intervals separated by the paging windows. The broadcast manager generates messages for wireless transmission to the plurality of user equipment in corresponding paging windows during the time interval. The messages include information indicating a transmission time at which the plurality of user equipment are to receive broadcast or multicast data. The transmission time is subsequent to the time interval.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: May 3, 2022
    Assignee: Nokia Technologies Oy
    Inventors: Subhasis Laha, Padmavathi Sudarsan, Ranga Tota, Ruth Gayde, Subramanian Vasudevan
  • Patent number: 11281434
    Abstract: An apparatus and method are provided for maintaining a counter value. The apparatus has first counter control circuitry for maintaining a first counter value representing a first portion of a hybrid counter value, and second counter control circuitry for maintaining a second counter value representing a second portion of the hybrid counter value, wherein the second portion is a higher order portion of the hybrid counter value than the first portion. The first counter control circuitry is arranged to maintain the first counter value as a binary value that indicates a magnitude of the first counter value, the first counter control circuitry comprising adder circuitry that is responsive to an adjustment value to update the first counter value by performing an addition operation to add the adjustment value to a current binary value of the first counter value, and to generate a carry out signal which is set when a carry out is generated by the addition operation.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: March 22, 2022
    Assignee: Arm Limited
    Inventors: Andreas Lars Sandberg, Matthias Lothar Boettcher
  • Patent number: 11218232
    Abstract: A DC offset calibration system and method. The method includes: in a first calibration mode, outputting a first digital signal by using a control circuit, generating a first differential calibration signal according to the first digital signal by using a first digital-to-analog conversion circuit, generating a first amplified signal according to the first differential calibration signal by using an amplification circuit, and feeding back the first amplified signal to the control circuit to adjust the first digital signal; and in a second calibration mode, outputting a second digital signal by using the control circuit, generating a second differential calibration signal according to the second digital signal by using a second digital-to-analog conversion circuit, generating a second amplified signal according to the second digital signal by using an equalizing circuit and the amplification circuit, and feeding back the second amplified signal to the control circuit to adjust the second digital signal.
    Type: Grant
    Filed: March 22, 2021
    Date of Patent: January 4, 2022
    Assignee: SIGMASTAR TECHNOLOGY LTD.
    Inventors: Jian Li, Kai Sun
  • Patent number: 11143745
    Abstract: A radar target simulation device for testing a device under test with respect to at least one radar scenario. The radar target simulation device includes a memory, a radar scenario simulator and at least two antennas. The memory stores the radar scenario(s) with respect to the device under test, and provides the radar scenario(s) to the radar scenario simulator. The radar scenario simulator receives radar signals from the device under test via the antennas to simulate the radar scenario(s) by manipulating the radar signals according to the radar scenario(s), generates resulting manipulated radar signals, and transmits the manipulated radar signals to the device under test via the antennas. The memory contains storage contents including storage cells, wherein each storage cell corresponds to the respective antenna of the at least two antennas.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: October 12, 2021
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Sherif Ahmed, Steffen Heuel, Andreas Reil, Udo Reil
  • Patent number: 11143746
    Abstract: A chirp linearity detector, integrated circuit, and method are provided. The chirp linearity detector comprises a phase-locked loop (PLL) frequency sampling circuit and a frequency sweep linearity measuring circuit. The PLL frequency sampling circuit comprises a frequency divider circuit for receiving a PLL output signal from a PLL and for providing a frequency divided output signal, a first low pass filter circuit for receiving the frequency divided output signal, for reducing harmonic mixing, and for providing a mixer input signal, a mixer circuit for receiving the mixer input signal, for mixing the mixer input signal with a local oscillator signal, and for providing a mixer output signal, a second low pass filter circuit for performing anti-aliasing filtering and for providing an analog-to-digital converter (ADC) input signal, and an ADC circuit for digitizing the ADC input signal and for providing a digital output signal.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: October 12, 2021
    Assignee: NXP USA, Inc.
    Inventors: Jean-Stéphane Vigier, Dominique Delbecq, Cristian Pavao-Moreira, Andres Barrilado-Gonzalez
  • Patent number: 11125889
    Abstract: The present invention discloses methods of accuracy improving for code measurements in GLONASS GNSS receivers. One component of error budget in code measurements of GLONASS receivers is caused by a difference in signal delays arising in the receiver analog Front End and antenna filter on different channel frequencies specific to GLONASS satellites. Methods to compensate for differences in delays for different GLONASS channel frequencies have been proposed using data collected from a GLONASS signals simulator.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: September 21, 2021
    Assignee: Topcon Positioning Systems, Inc.
    Inventors: Vladimir Victorovich Veitsel, Andrey Vladimirovich Veitsel, Konstantin Vladimirovich Chereshnev
  • Patent number: 11095425
    Abstract: Methods, apparatus, and systems for communication over a multi-wire, multi-phase interface are disclosed. A clock recovery method includes generating a combination signal that includes transition pulses, each transition pulse being generated responsive to a transition in a difference signal representative of a difference in signaling state of a pair of wires in a three-wire bus. The combination signal is provided to a logic circuit that is configured to provide a clock signal as its output, where pulses in the combination signal cause the clock signal to be driven to a first state. The logic circuit receives a reset signal that is derived from the clock signal by delaying transitions to the first state while passing transitions from the first state without added delay. The clock signal is driven from the first state after passing a transition of the clock signal to the first state.
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: August 17, 2021
    Assignee: QUALCOMM INCORPORATED
    Inventors: Ying Duan, Jing Wu, Shih-Wei Chou
  • Patent number: 11025349
    Abstract: Disclosed herein are a method for channel decoding using noise level correction in a high-speed mobile reception environment and an apparatus for the same. The method includes estimating, by a signal receiver that is based on OFDM and is moving at high speed, Inter-Carrier Interference (ICI) power for received signal power based on the movement speed of the signal receiver; calculating, by the signal receiver, a Signal-to-Noise Ratio (SNR) for a received signal using an estimate of the ICI power; and decoding, by the signal receiver, a channel code based on a Log Likelihood Ratio (LLR) per bit, calculated based on the SNR, and the received signal.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: June 1, 2021
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Sung-Jun Ahn, Bo-Mi Lim, Sun-Hyoung Kwon, Sung-Ik Park, Jae-Young Lee
  • Patent number: 11005520
    Abstract: A code acquisition module for a direct sequence spread spectrum (DSSS) receiver includes: a Sparse Discrete Fourier transform (SDFT) module configured to perform an SDFT on a finite number of non-uniformly distributed frequencies comprising a preamble of a received DSSS frame to calculate Fourier coefficients for the finite number of non-uniformly distributed frequencies; a multiplier configured to multiply the Fourier coefficients for the finite number of non-uniformly distributed frequencies of the received DSSS frame by complex conjugate Fourier coefficients for the finite number of non-uniformly distributed frequencies to generate a cross-correlation of the received DSSS frame and the complex conjugate Fourier coefficients; and a filter module configured to input the cross-correlation and output a delay estimation for the received DSSS frame.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: May 11, 2021
    Assignee: RAM Photonics, LLC
    Inventor: Vahid Ataie
  • Patent number: 11006477
    Abstract: There is provided a control device including a communication unit configured to perform communication with a radio communication device of a radio communication system in which communication is possible using a plurality of access schemes including at least one of the access schemes of a multiple access scheme that uses orthogonal resources and a multiple access scheme that uses non-orthogonal resources, and a control unit configured to perform allocation of resources relating to the access schemes to be used by the radio communication device.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: May 11, 2021
    Assignee: SONY CORPORATION
    Inventors: Ryota Kimura, Ryo Sawai, Hiromasa Uchiyama, Sho Furuichi
  • Patent number: 10973032
    Abstract: To facilitate disturbance measurements within a WLAN network, a portable measuring device is introduced. The portable measuring device comprises at least a casing, one or more interfaces to detachably connect an external device to the portable measuring device, a processor placed in the casing, one or more antennas, two simultaneously operating radios placed in the casing, one or more power sources placed in the casing, and a power switch.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: April 6, 2021
    Assignee: Ekahau Oy
    Inventors: Mikko Lauronen, Jussi-Heikki Matias Kiviniemi
  • Patent number: 10958302
    Abstract: Efficient and low-latency cueing means for initiating and updating a process of signal detection and separation in a wideband receiver. The method uses an array of IIR filters that feed an inverted state tree. The inverted state tree provides the directions for separating, detecting, and tracking multiple simultaneous signals that are being received. These signals could be either radar or communications signals and are of widely differing frequencies, bandwidths, and other characteristics. The directions are sent by the cueing system to a set of tunable tracking filters and continuously updated so that the set of tracking filters produce noise-reduced, separated signals on their outputs representing the various simultaneous incoming signals.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: March 23, 2021
    Assignee: The Boeing Company
    Inventor: Gary A. Ray
  • Patent number: 10924252
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of a demodulation reference signal (DMRS) port to be used by the UE for transmitting a DMRS communication; determine a base sequence based at least in part on the DMRS port; generate a DMRS sequence for the DMRS port based at least in part on the base sequence; and transmit the DMRS communication including the DMRS sequence via the DMRS port. Numerous other aspects are provided.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: February 16, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Wei Yang, Yi Huang, Peter Gaal
  • Patent number: 10878069
    Abstract: In an embodiment of the invention, an unlocked mobile device is configured to capture images, analyze the images to detect a user's face, and automatically lock the device in response to determining that a user's face does not appear in the images. The camera capturing and face recognition processing may be triggered by the device having detected that it has been motionless for a threshold period of time. In another embodiment, a locked mobile device is configured to capture an initial image using its camera, capture a new image in response to detecting movement of the device, determine that the device moved to a use position, capture a subsequent image in response to determining that the device moved to a use position, analyze the subsequent image to detect a user's face, and unlock the device in response to detecting the user's face. Other embodiments are also described and claimed.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: December 29, 2020
    Assignee: Apple Inc.
    Inventors: Lihua Zhao, Richard Tsai
  • Patent number: 10841903
    Abstract: A cell2 configured by only a DL CC2 being a resource for downlink is configured. The cell2 does not include a resource for uplink, that is, a UL CC to be associated with the DL CC2 by a DL/UL link. The link information indicating the above is notified a communication terminal device by a base station device using the DL CC2. A DL CC1 and a UL CC1 constitute a cell1. The downlink communication from the base station device to the communication terminal device is performed using the cell1 and the cell2, and the uplink communication from the communication terminal device to the base station device is performed using the cell1.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: November 17, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Mitsuru Mochizuki, Miho Maeda, Yasushi Iwane, Takayuki Nonami
  • Patent number: 10805319
    Abstract: Disclosed herein are a stepping-stone detection apparatus and method. The stepping-stone detection apparatus includes a target connection information reception unit for receiving information about a target connection from an intrusion detection system (IDS), a fingerprint generation unit for generating a target connection fingerprint based on the information about the target connection, and generating one or more candidate connection fingerprints using information about one or more candidate connections corresponding to one or more flow information collectors, and a stepping-stone detection unit for detecting a stepping stone by comparing the target connection fingerprint, in which a maximum allowable delay time is reflected, with the candidate connection fingerprints.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: October 13, 2020
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jung-Tae Kim, Ik-Kyun Kim, Koo-Hong Kang
  • Patent number: 10804974
    Abstract: An apparatus comprising: a receiver; and one or more N-path filters coupled to an input of the receiver, wherein the one or more N-path filters apply a combination of non-overlapping pulses and a pseudo noise (PN) code.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: October 13, 2020
    Assignee: Oregon State University
    Inventors: Agrawal Abhishek, Natarajan Arun
  • Patent number: 10802129
    Abstract: Disclosed is a Doppler measurement method comprising: generating a first function defined by reception signals in two consecutive subcarriers for a specific OFDM symbol; generating a second function defined on the basis of the signs and sizes of a real part and an imaginary part of the first function; repeatedly performing a process of generating the first function and the second function for all of a set of OFDM symbols; and determining, as a Doppler value, the phase of a third function obtained by adding the results of repeatedly performing the process.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: October 13, 2020
    Assignee: LG Electronics Inc.
    Inventors: Kilbom Lee, Jiwon Kang, Kitae Kim, Kungmin Park, Heejin Kim
  • Patent number: 10778355
    Abstract: A frequency division multiplexing system includes a processor, a first digital to analog converter (DAC) for generating a local oscillator signal, a second DAC for generating a chirp signal, and a plurality of electronic elements, each having a transmit signal mixer for combining the local oscillator and chirp signals, and a transceiver configured to transmit the combined local oscillator and chirp signals, where the processor may be configured to operate the first DAC and second DAC to vary frequencies of the local oscillator and chirp signals such that the combination of the local oscillator and chirp signals results in a constant center frequency with a varying phase.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: September 15, 2020
    Assignee: United States of America as represented by the Administrator of NASA
    Inventors: Rafael Rincon, Dee-Pong Daniel Lu
  • Patent number: 10756941
    Abstract: The method: extracts symbols at pilot positions from the received stream of symbols, estimates noise variances at pilot positions, determines a rough channel estimation from the symbols extracted at pilot positions, determines weighting coefficients from the estimated noise variances, weights the rough channel estimation by the determined weighting coefficients, filters the weighted rough channel estimation using predetermined coefficients, at least one predetermined coefficient being different from the other predetermined coefficients, the predetermined coefficients being determined for a constant noise variance, determines normalization coefficients from the determined weighting coefficients and predetermined filter coefficients, normalizes the filtered weighted rough channel estimation using the determined normalization coefficients.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: August 25, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Damien Castelain, Yuji Matsuki
  • Patent number: 10746869
    Abstract: Disclosed is a calibration method of performing dual radiometric compensation by using an antenna gain pattern of a synthetic aperture radar (SAR) both in a time domain and in a frequency domain. The method may include performing frequency-domain radiometric compensation in relation to an elevation angle and performing time-domain radiometric compensation in relation to a frequency to calibrate the antenna gain pattern.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: August 18, 2020
    Assignee: KOREA AEROSPACE RESEARCH INSTITUTE
    Inventor: Jae Min Shin
  • Patent number: 10749651
    Abstract: Techniques for performing channel estimation in an orthogonal time, frequency and space (OTFS) communication system include receiving a wireless signal comprising a data signal portion and a pilot signal portion in which the pilot signal portion includes multiple pilot signals multiplexed together in the OTFS domain, performing two-dimensional channel estimation in a time-frequency domain based on a minimum mean square error (MMSE) optimization criterion, and recovering information bits using a channel estimate obtained from the two-dimensional channel estimation.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: August 18, 2020
    Assignee: Cohere Technologies, Inc.
    Inventors: Yoav Hebron, Shlomo Selim Rakib, Ronny Hadani, Michail Tsatsanis, Clayton Ambrose, Jim Delfeld, Robert Fanfelle
  • Patent number: 10735486
    Abstract: The systems, methods, and devices of the various embodiments enable a receiver device to adjust timing of requests for segments based on the actual times when the segments will be available on the receiver device. In various embodiments, a receiver device may be enabled to modify a segment availability timeline in which the availability times of the segments are adjusted to provide the actual times when segments will be available on the receiver device. In various embodiments, segment availability time adjustments may be made at a service layer of the receiver device. In various embodiments, segment availability time adjustments may be made by a client application on the receiver device. In the various embodiments, a network delay jitter estimate may be provided. In an embodiment, a network delay jitter estimate may be provided in a segment availability timeline.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: August 4, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Ralph A. Gholmieh, Nagaraju Naik, Nermeen A. Bassiouny, Thadi M. Nagaraj
  • Patent number: 10715300
    Abstract: A demodulation reference signal (DMRS) indicating method, a DMRS receiving method, and an apparatus are described. A transmit end determines, from a plurality of groups of demodulation reference signal DMRS configuration information, DMRS configuration information corresponding to a current DMRS transmission scheme. The transmit end obtains DMRS indication information based on the DMRS configuration information, where each group of DMRS configuration information includes a plurality of pieces of DMRSs configuration information. The transmit end sends the DMRS indication information. The described method and the apparatus are implemented to match a plurality of New Radio (NR) scenarios. The described operations can satisfy a requirement for transmitting more layers of data and reduce indication overheads.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: July 14, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Xiang Ren, Yong Liu, Lu Rong
  • Patent number: 10708859
    Abstract: In a described example, an integrated circuit includes an input coupled to receive a plurality of beacon frames, the beacon frames include an indication of data transmissions available for a device that includes the integrated circuit. The integrated circuit also includes a controller configured to compare the plurality of beacon frames to determine a plurality of bytes prior to the indication of data transmission available that is present in each of the plurality of beacon frames and is configured to provide a signal indicating a low power mode in which the device does not receive transmissions and to provide a signal indicating a wake mode at a selected time before transmission of the plurality of bytes in a subsequent beacon transmission.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: July 7, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Oran Naftali, Avi Baum, Yuval Jakira, Asaf Even-Chen
  • Patent number: 10701614
    Abstract: Methods of combining semi-persistent resource allocation and dynamic resource allocation are provided. Packets, such as VoIP packets, are transmitted on the uplink and downlink using respective semi-persistent resources. For each mobile device, awake periods and sleep periods are defined. The semi-persistent resources are aligned with the awake periods so that most of the time the mobile device can turn of its wireless access radio during the sleep periods. In addition, signalling to request, and to allocate, resources for additional packets are transmitted during the awake periods, and the resources allocated for the additional packets are within the awake windows.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: June 30, 2020
    Assignee: BlackBerry Limited
    Inventors: Zhijun Cai, James Earl Womack
  • Patent number: 10651890
    Abstract: The present disclosure provides a device and method for wireless communication and a communication terminal. The device comprises: a spatial filtering unit, configured to perform spatial filtering on a signal received by each antenna in a receiving antenna array, and combine filtered signals, wherein all coefficients adopted by spatial filtering are configured to reduce an equivalent channel time-variant degree of a combined signal.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: May 12, 2020
    Assignee: SONY CORPORATION
    Inventors: Zaichen Zhang, Rong Zeng
  • Patent number: 10615808
    Abstract: An apparatus is disclosed that implements frequency synthesis with accelerated locking. In an example aspect, the apparatus includes an oscillating signal source, a modulus compensator, and a frequency generator. The oscillating signal source is configured to provide a reference signal having a reference frequency. The modulus compensator is coupled to the oscillating signal source and is configured to receive the reference signal. The modulus compensator is configured to produce a compensated modulus value based on the reference frequency, a fixed oscillator frequency of a fixed-frequency oscillator signal, and a modulus value. The frequency generator is coupled to the oscillating signal source and the modulus compensator and is configured to receive the compensated modulus value. The frequency generator is configured to generate an output signal having an output frequency that is based on the reference frequency and the compensated modulus value.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: April 7, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Kevin Jia-Nong Wang, Shyam Sivakumar
  • Patent number: 10616381
    Abstract: The present disclosure relates to a pre-5th-generation (pre-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). A method and an apparatus for performing a hybrid automatic repeat request (HARQ) for reducing latency in wireless communication systems are provided. The method includes receiving a concatenated packet including a short transmission time interval (TTI) packet and a long TTI packet from a transmitter, decoding the short TTI packet, feeding, when decoding the short TTI packet fails, a negative acknowledgement (NACK) back to the transmitter, and receiving a retransmission packet including the short TTI packet and the long TTI packet from the transmitter.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: April 7, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Min Moon, Seung-Hoon Park, Sun-Heui Ryoo, Byoung-Hoon Jung, Jung-Soo Jung
  • Patent number: 10616846
    Abstract: Disclosed is a method and apparatus for reducing timing drift where a UE computes an NSSS based timing error using a cross correlation. Next, timing drift is measured as the difference in timing error at two NSSS instances separated by a time duration. The timing drift value can then be mapped to a raster offset.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: April 7, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Srikanth Menon, Raghavendra Shyam Ananda
  • Patent number: 10609685
    Abstract: A cell2 configured by only a DL CC2 being a resource for downlink is configured. The cell2 does not include a resource for uplink, that is, a UL CC to be associated with the DL CC2 by a DL/UL link. The link information indicating the above is notified a communication terminal device by a base station device using the DL CC2. A DL CC1 and a UL CC1 constitute a cell1. The downlink communication from the base station device to the communication terminal device is performed using the cell1 and the cell2, and the uplink communication from the communication terminal device to the base station device is performed using the cell1.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: March 31, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Mitsuru Mochizuki, Miho Maeda, Yasushi Iwane, Takayuki Nonami
  • Patent number: 10608720
    Abstract: Various aspects of the disclosure relate to communication using a data unit that includes at least one mid-amble. In some aspects, an apparatus may use mid-ambles for mobility scenarios (e.g., when the apparatus is moving outdoors). The disclosure relates in some aspects to signaling associated with the use of mid-ambles. In some aspects, an apparatus may signal whether it supports sending and/or receiving data with mid-ambles. In some aspects, an apparatus may signal whether a particular data unit includes at least one mid-amble. In some aspects, an apparatus may signal an indication of at least one mid-amble update interval. In some aspects, an apparatus may signal whether a mid-amble includes a short training field.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: March 31, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Lochan Verma, Sameer Vermani, Bin Tian
  • Patent number: 10560290
    Abstract: An information handling system communicates information across a physical link with high and low signal values sent at a unit interval. Feed forward equalization improves signal transfer with pre-emphasis of low-to-high signals and de-emphasis of high-to-low signals lasting for a fraction of the unit interval, such as one-half or one-quarter of the unit interval. Fractional unit interval pre-emphasis and de-emphasis reduce inter symbol interference to improve frequency domain eye structure at the physical link receiver.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: February 11, 2020
    Assignee: Dell Products L.P.
    Inventors: Arun R. Chada, Han Deng, Bhyrav M. Mutnury
  • Patent number: 10516561
    Abstract: A communication apparatus includes a receiver and a decoder. The receiver includes a plurality of antenna elements and, in operation, receives from a base station apparatus a modulated signal mapped to one of a plurality of subframes defined in a frame corresponding to a communicable range to which the communication apparatus belongs. The plurality of subframes are defined by time-division, frequency-division, or time-and-frequency division of the frame. A maximum number of modulated signals that can be simultaneously transmitted in a subframe from the base station apparatus varies depending on the communicable range. The decoder, in operation, decodes the received modulated signal.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: December 24, 2019
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventor: Yutaka Murakami
  • Patent number: 10512088
    Abstract: Disclosed is a method and apparatus for allocating a wireless resource in order to prevent interference in a wireless LAN. A method for allocating a wireless resource in a wireless LAN may comprise the steps of: allocating, by an AP, a plurality of wireless resources for a plurality of STAs included in a BSS, in the entire bandwidth, respectively; and transmitting, by the AP, a PPDU to the plurality of STAs through the plurality of wireless resources, respectively, wherein each of the plurality of wireless resources is a combination of a plurality of wireless units defined in different sizes on a frequency axis, and each of the plurality of wireless resources can be determined in consideration of the size of the bandwidth of at least one STA supporting a bandwidth smaller than the size of the entire bandwidth from among the plurality of STAs.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: December 17, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Jinsoo Choi, Hangyu Cho, Wookbong Lee
  • Patent number: 10511427
    Abstract: Techniques are described for wireless communication. One method includes determining, based at least in part on a number of downlink component carriers (CCs) scheduled for a user equipment (UE) during a reporting interval, a number of bits to be included in a physical uplink control channel (PUCCH) acknowledgement/non-acknowledgement (ACK/NAK) payload for the reporting interval; and selecting, based at least in part on the determined number of bits, a format of the PUCCH ACK/NAK payload.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: December 17, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Peter Gaal, Wanshi Chen, Jelena Damnjanovic, Hao Xu, Madhavan Srinivasan Vajapeyam
  • Patent number: 10506549
    Abstract: Embodiments of the present invention provide a paging message sending method, a paging message receiving method, and a device. A base station sends, to UE, configuration information of a first paging resource reserved by a core network for the UE. When the base station performs paging area paging on the UE, the base station sends, on the first paging resource, a first paging message to the UE. In the embodiments, all multiple cells included in a paging area use the first paging resource to perform paging area paging, and all the multiple cells use same paging scrambling code to scramble the first paging message when sending the first paging message.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: December 10, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Bingzhao Li, Xing Chen, Jian Zhang
  • Patent number: 10474599
    Abstract: An apparatus can include a read data mover circuit adapted to fetch a portion of data for each of a plurality of read channels. The read data mover circuit is adapted to output, to an accelerator circuit, a plurality of bits of data for each of the plurality of read channels concurrently as first streamed data. The apparatus can include a controller configured to control operation of the read data mover circuit. In another aspect, the apparatus can include a write data mover circuit adapted to receive second streamed data from the accelerator circuit and output the second streamed data in a different format. The controller may be configured to control operation of the write data mover circuit.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: November 12, 2019
    Assignee: XILINX, INC.
    Inventor: Sundararajarao Mohan
  • Patent number: 10469127
    Abstract: An ultra-wideband communication and/or location system having a plurality of channels, each implementing a respective one of a plurality of predetermined codewords. Within each channel, one or more predetermined pulse repetition frequencies are defined. Within a single UWB system, more than two networks of transceivers may be co-located without mutual interference if each is assigned a unique combination of codewords and spreading factors.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: November 5, 2019
    Assignee: Decawave Ltd
    Inventors: Michael McLaughlin, Billy Verso
  • Patent number: 10397947
    Abstract: Systems and methods of wireless communication in which wireless devices are adapted to implement adaptive waveform selection are disclosed. For example, operation according to embodiments may provide for use of a waveform design that minimizes peak-to-average power ratio (PAPR), such as single-carrier frequency division multiplexing (SC-FDM), as well as a waveform design that provides higher spectral efficiency, such as orthogonal frequency division multiplexing (OFDM), for scenarios that are not power-limited and the higher PAPR is acceptable. Adaptive waveform selection may be based implicitly on one or more parameters or may be based on explicit signaling. Adaptive waveform selection may be utilized with respect to initially establishing a communication link and/or with respect to an established communication link.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: August 27, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Tao Luo, Sony Akkarakaran
  • Patent number: 10389486
    Abstract: A communication system and method are disclosed for parallel processing of received signals to improve sensitivity of the system. Generally, the method includes demodulating a modulated signal in a first demodulator circuit and a second demodulator circuit in parallel. The first and second demodulated signals are then de-whitened, and a cyclic redundancy code (CRC) check performed on each. If the de-whitened first demodulated signal passes the CRC check a first packet included in the signal is sent to a central processing unit (CPU) for further processing. If the de-whitened second demodulated signal passes the CRC check, and the de-whitened first demodulated signal fails, a second packet included in the de-whitened second demodulated signal is transmitted to the CPU for further processing. In one embodiment, one of demodulator circuits is a GFSK demodulator operated in the phase domain and configured to use maximum likelihood sequence estimation. Other embodiments are also described.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: August 20, 2019
    Assignee: Cypress Semiconductor Corporation
    Inventors: Yan Li, Jie Lai, Hongwei Kong, Kamesh Medapalli
  • Patent number: 10383077
    Abstract: The scheduling flexibility of CSI reference signals enables time and frequency synchronization using multiple non-zero CSI-RSs transmitted in the same subframe, or using CSI-RSs transmitted in the same subframe with other synchronization signals. Also, multiple synchronization signals may be scheduled in the same subframe to enable fine time and frequency synchronization without cell-specific reference signals.
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: August 13, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Havish Koorapaty, Mattias Frenne, Daniel Larsson, Jiann-Ching Guey, Jung-Fu Cheng
  • Patent number: 10381836
    Abstract: Power converter communications, including power converter communication methods and power converters that can communicate information, are disclosed. A control variable of a power converter is modulated, to modulate an output of the power converter for communicating information. Modulation of voltage or current on a circuit path to which the power converter is coupled could be detected, by another power converter, for example. Such modulation could be detected by sensors that are also used in controlling the power converter. Either or both of transmission and reception could therefore be provided without requiring any additional hardware at a power converter.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: August 13, 2019
    Assignee: SOLANTRO SEMICONDUCTOR CORP.
    Inventors: Tudor Lipan, James Benson Bacque, Raymond Kenneth Orr
  • Patent number: 10356806
    Abstract: A method, in a network node, for transmitting data in a heterogeneous network cellular communication system comprises transmitting of a SFN pilot signal (262). A SFN pilot signal is a pilot signal transmitted by all radio units of a heterogeneous network cell. Optionally, configuration information about non-SFN pilot signals in a cell of the network node is transmitted (260). Non-SFN pilot signals are pilot signals transmitted by less than all radio units of a heterogeneous network cell. The non-SFN pilot signal is transmitted (264). A control channel signal is transmitted (270) on a control channel and a data channel signal associated with the transmitted control channel signal is transmitted (280) on a data channel. A network node operable therefore is also presented. A method for receiving data in a heterogeneous network cellular communication system and a wireless device operable therefore are also presented.
    Type: Grant
    Filed: January 7, 2014
    Date of Patent: July 16, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Yi-Pin Eric Wang, Patrik Karlsson, Sairamesh Nammi, Fredrik Ovesjö
  • Patent number: 10333583
    Abstract: A signal detection circuit includes: a correlation circuit including the first through nth correlators connected sequentially as the first through nth stage correlators and each computing a correlation value between a received signal and a spreading sequence while shifting the received signal to the next stage depending on the chip rate period of the spreading sequence; a first adder that adds k correlation values computed by k correlators so as to generate a first addition value; a second adder that adds r correlation values computed by r correlators so as to generate a second addition value; a subtractor that subtracts the first addition value from the second addition value so as to generate a subtraction value; and a synchronization detection unit that compares the subtraction value with a threshold value, so as to detect the synchronization timing of the spreading sequence and the received signal.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: June 25, 2019
    Assignee: LAPIS Semiconductor Co., Ltd.
    Inventor: Takamitsu Hafuka
  • Patent number: 10334456
    Abstract: The present technology provides a new approach to optimizing wireless networks, including the coverage and capacity of cellular networks, using deep learning. The proposed method involves generating a group of cells comprising a cell identified as underperforming and one or more neighboring cells, ranking the one or more neighboring cells based on one or more relationship parameters between the underperforming cell and the one or more neighboring cells, and generating a multi-dimensional multi-channel state tensor for the group of cells based on the ranking of the one or more neighboring cells. This approach to cellular network optimization improves the coverage and capacity of cellular networks using a process that is faster, more accurate, less costly, and more robust.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: June 25, 2019
    Assignee: FUTUREWEI TECHNOLOGIES, INC.
    Inventors: Jin Yang, Yongxi Tan
  • Patent number: 10326480
    Abstract: The communication receiver comprises a mixer being configured to mix the communication signal with a periodic mixing signal having a mixing frequency fC to obtain a mixed communication signal, wherein the mixed communication signal comprises a first frequency spectrum portion comprising the spectral region of interest being situated around a frequency fRF+fC and a second frequency spectrum portion comprising the spectral range of interest being situated around fRF?fC; a first demodulator being configured to demodulate a first frequency channel of the plurality of frequency channels within the spectral range of interest of the first frequency spectrum portion on the basis of a first local oscillator frequency fLO1; and a second demodulator being configured to demodulate a second frequency channel of the plurality of frequency channels within the spectral region of interest of the second frequency spectrum portion on the basis of a second local oscillator frequency fLO2.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: June 18, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Dror Regev, Shimon Shilo, Doron Ezri, Chirn Chye Boon, Xiang Yi, Junping Zhang, Gengen Hu, Dong Liang, Sheng Liu
  • Patent number: 10321404
    Abstract: A device and a method for saving power in a mobile electronic device are provided. A mobile electronic device includes a plurality of antennas and a transceiver, wherein the transceiver includes a control unit configured to switch to a low power mode to operate in the low power mode, or to operate at least one of the plurality of antennas in the low power mode when a data non-transmission period occurs for a predetermined time in an active state.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: June 11, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seong-Wook Song, Jin-Hee Cheon, Da-Hae Chong
  • Patent number: 10313166
    Abstract: A system and method for augmenting the data capacity of pre-existing communications channels is provided. In one example, a subcarrier waveform of the system can be dithered based on data generated by an additional source and then transmitted. The dithered subcarrier can be passed through a plurality of matched filters so as to ascertain which dither pattern was used, thus ultimately allowing for the demodulation of the additional data source. The system and methods provided herein can be implemented with minimal impact to legacy users of the system as implementation of the dithering scheme can have minimal impact to the performance of receivers that are not equipped to demodulate the dithered waveforms.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: June 4, 2019
    Assignee: The MITRE Corporation
    Inventor: Brady O'Hanlon
  • Patent number: 10313068
    Abstract: Methods, apparatus, and systems for monitoring and measuring signal characteristics for signals received over a multi-wire, multi-phase interface are disclosed. Signals present on each line of a 3-line communication interface are sampled using auxiliary samplers having a programmable time delay to delay the sampled signal by a set time, as well as a programmable voltage offset. The auxiliary sampler outputs are compared with direct line samples of signals on each of the three lines to generate error signals. From this comparison, an array of error signal data occurring over a particular sampling period may be generated. In turn, waveform characteristics can be determined from the error signal data, such as an eye-pattern. Furthermore, skew measurement may further be effectuated using the auxiliary samplers but determining the time difference of when the error signals of the different wires cross a predetermined threshold.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: June 4, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Yasser Ahmed, Ying Duan