Transceivers Patents (Class 375/219)
  • Patent number: 11184087
    Abstract: Devices, systems and methods for encoding information using optical components are described. Information associated with a first optical signal (e.g., an optical pump) is encoded onto the phase of a second optical signal (e.g., an optical probe) using cross phase modulation (XPM) in a non-linear optical medium. The optical signals are multiplexed together into the nonlinear optical medium. The probe experiences a modified index of refraction as it propagates through the medium and thus accumulates a phase change proportional to the intensity of the pump. The disclosed devices can be incorporated into larger components and systems for various applications such as scientific diagnostics, radar, remote sensing, wireless communications, and quantum computing that can benefit from encoding and generation of low noise, high resolution signals.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: November 23, 2021
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Brandon Walter Buckley, David Simon Perlmutter, Peter Thomas Setsuda DeVore, Apurva Shantharaj Gowda, Jason Thomas Chou
  • Patent number: 11184146
    Abstract: Differential input pins are coupled to a differential transmission path. A receiver circuit receives a differential input signal input via the differential input pins. A latch circuit latches an internal differential signal output from the receiver circuit. An evaluation circuit samples the internal differential signal, and generates evaluation data with respect to the waveform of the internal differential signal. A reception device is configured to be capable of providing evaluation data DEVAL to an external circuit.
    Type: Grant
    Filed: October 6, 2020
    Date of Patent: November 23, 2021
    Assignee: ROHM CO., LTD.
    Inventors: Toshihide Komiya, Kenya Nakamura
  • Patent number: 11178287
    Abstract: Disclosed are methods and systems to facilitate use of a single channel for voice communications and of multiple channels for non-voice communications. In particular, a transmitting node may determine that data is to be communicated from the transmitting node to a receiving node and may then make a determination of whether the data is to be communicated as part of a voice communication. If the determination is that the data is not to be communicated as part of a voice communication, then the transmitting node may responsively communicate the data to the receiving node over two or more channels. Whereas, if the determination is that the data is to be communicated as part of a voice communication, then the transmitting node may responsively communicate the data to the receiving node over just one channel rather than communicating the data to the receiving node over two or more channels.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: November 16, 2021
    Assignee: Sprint Spectrum L.P.
    Inventors: Luca Zappaterra, Yu Zhou, Muhammad A. Naim
  • Patent number: 11177864
    Abstract: Disclosed is a transmission scheme for transmitting a first modulated signal and a second modulated signal over the same frequency at the same time. According to the transmission scheme, a precoding weight multiplying unit multiplies a baseband signal after a first mapping and a baseband signal after a second mapping by a precoding weight and outputs the first modulated signal and the second modulated signal. In the precoding weight multiplying unit, precoding weights are regularly hopped.
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: November 16, 2021
    Assignee: SUN PATENT TRUST
    Inventors: Yutaka Murakami, Tomohiro Kimura, Mikihiro Ouchi
  • Patent number: 11171707
    Abstract: According to a first aspect, a client device is configured to: transmit a beam report, for example to a network device, wherein the beam report comprises information about a set of N transmit, Tx, beams in a downlink and measurement values related to the N Tx beams; obtain information about selected K Tx beams being a subset of the set of N Tx beams; obtain mapping information between K indicators and the selected K Tx beams, wherein each of the K indicator identifies one of the selected K Tx beams; and receive, for example from the network device, a downlink, DL, signal using the obtained information about the selected K Tx beams and the mapping information. According to another aspect a network device is provided. According to another aspects methods of operating the devices are provided and a computer program.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: November 9, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Chaitanya Tumula, Wenquan Hu, Neng Wang, Bengt Lindoff
  • Patent number: 11169501
    Abstract: A computer program product, a device, a functionally secure programmable controller and a method for processing data via coded operations in a number of cycles, wherein an uncoded variable x is coded with a cycle-specific signature D and a variable-specific signature Bx to form a coded variable xc in accordance with the relationship: xc=D·x+Bx.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: November 9, 2021
    Assignee: Siemens Aktiengesellschaft
    Inventor: Maximilian Walter
  • Patent number: 11169013
    Abstract: A system (800) for determining frequency spacings to prevent intermodulation distortion signal interference is provided. The system (800) includes a sensor assembly (810) and a meter verification module (820) communicatively coupled to the sensor assembly (810). The meter verification module (820) is configured to determine a frequency of a first signal to be applied to a sensor assembly (810) of a vibratory meter and set a demodulation window about the frequency of the first signal. The meter verification module (800) is also configured to determine a frequency of the second signal to be applied to the sensor assembly such that a frequency of an intermodulation distortion signal generated by the first signal and the second signal is outside the demodulation window.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: November 9, 2021
    Assignee: Micro Motion, Inc.
    Inventors: Matthew Joseph Rensing, Timothy J. Cunningham
  • Patent number: 11171767
    Abstract: A signal processing circuit, which includes: a first clock source, configured to generate a first clock signal; a phase adjusting circuit, configured to receive the first clock signal, and to generate a second clock signal and a third clock signal, wherein the second clock signal and the third clock signal have different phases; an error compensating circuit, configured to compensate an input signal according to an error signal, to generate an compensated input signal; an error calculating circuit, configured to generate the error signal according to the first clock signal, the third clock signal and the compensated input signal; and a receiving end ADC (Analog to Digital Converter), configured to sample the compensated input signal according to the second clock signal.
    Type: Grant
    Filed: April 12, 2021
    Date of Patent: November 9, 2021
    Assignee: Realtek Semiconductor Corp.
    Inventors: Yun-Tse Chen, Liang-Wei Huang, Chi-Hsi Su, Po-Han Lin
  • Patent number: 11166177
    Abstract: Methods, systems, and devices for wireless communication are disclosed. Flexible interleaving configurations may be employed to support various operations, including beamforming. Flexible interleaving may include dynamically or semi-statically determining a combination of bit-level, tone-level, tone-group level, or other interleaving technique for one or more transmissions. The interleaving configuration may be based on delay spread, a coherence bandwidth, a signal to noise ratio, a Doppler spread, or a combination thereof. An interleaving configuration may be a determination may be made by a base station or some other network entity and explicitly signaled to another device. Additionally or alternatively, the determination may be made based on one or more implicit rules, which may be based on a variety of factors (e.g., available bandwidth, modulation and coding scheme (MCS), code block (CB) size). Further, interleaving may be enabled (or disabled) under certain conditions.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: November 2, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Wenjun Li, Tao Luo, Alexandros Manolakos
  • Patent number: 11163050
    Abstract: Techniques for estimating one or more backscatter signals reflected from one or more objects are disclosed. In one example, a backscatter sensor includes, in part, a receiver for receiving a composite signal comprising one or more reflections of a transmitted signal, each reflection being reflected by one of a plurality of objects; and a processor configured to estimate at least a first backscatter component of the composite signal using a progressive interference cancellation technique. The first backscatter component of the composite signal corresponds to a reflection of the transmitted signal from a first object. In one embodiment, the backscatter sensor includes multiple receivers and/or one or more transmitters.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: November 2, 2021
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Dinesh Bharadia, Kiran Joshi, Sachin Katti
  • Patent number: 11152980
    Abstract: Base stations and user terminals may adaptively configure a digital precoder codebook for mmWave-based hybrid beamforming, such as by determining at least one analog beamformer and combiner, determining at the user terminal a lowest codebook resolution of digital precoding that can be used to achieve at least one performance parameter, and communicating to the base station the determined lowest codebook resolution of digital precoding. The adjustment of digital precoder codebook resolution, on top of analog beamforming, across different radio resources (e.g. time/frequency) may optimize feedback efficiency for a user terminal. In some cases, the user terminal may also receive from a base station an assistance parameter relating to an achievable performance gain using digital precoding. The user terminal may use the received assistance parameter in determining the digital precoder codebook resolution.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: October 19, 2021
    Assignee: IDAC HOLDINGS, INC.
    Inventors: Ping-Heng Kuo, Alain Mourad, Katla Satyanarayana, Mohammed El-Hajjar
  • Patent number: 11139892
    Abstract: Systems and methods for a passive-active distributed antenna architecture are provided. In one example embodiment, a distributed antenna architecture comprises: a passive wireless coverage system in communication with a base station; an active wireless coverage system in communication with the base station; a conductor network comprising a plurality of cables coupled to at least one splitter-combiner device; and a DC power injector circuit coupled to the conductor network; wherein the DC power injector circuit injects a DC power signal onto the conductor network; wherein the passive wireless coverage system communicates analog radio frequency (RF) signals with the base station over the conductor network.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: October 5, 2021
    Assignee: CommScope Technologies LLC
    Inventor: Mohamed Nadder Hamdy
  • Patent number: 11133583
    Abstract: An apparatus comprises an antenna array, a block of switches, a programmable logic device and a memory device. The antenna array comprises a plurality of antenna elements. The block of switches is configured to selectively connect respective ones of a subset of the plurality of antenna elements to corresponding ones of a plurality of transceivers in a host device. The programmable logic device is configured to communicate with the host device and to control the block of switches. The memory device is coupled to the programmable logic device, and is configured to store information allowing the host device to determine how to control connectivity of individual antenna elements to respective ones of the plurality of transceivers of the host device as part of transmit and/or receive operations of the host device.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: September 28, 2021
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Stephen J. McCarthy, Matthew A. Silverman, Paul J. Stager
  • Patent number: 11128515
    Abstract: Methods, apparatuses, and computer readable media for a common preamble for wireless local-area networks (WLANs). An apparatus of an access point (AP) or station (STA) comprising processing circuitry configured to decode a portion of a physical layer (PHY) protocol data unit (PPDU), the first portion of the PPDU including a physical universal signal field (U-SIG), the U-SIG comprising a version independent portion and a version dependent portion, the version independent portion including a version identifier field, the version identifier field indicating a standard version of the PPDU. The processing circuitry is further configured to refrain from decoding the version dependent portion when the standard version indicates a standard version of a later generation than a standard version of the AP or STA, and otherwise decode the version dependent portion in accordance with the standard version.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: September 21, 2021
    Assignee: Intel Corporation
    Inventors: Minyoung Park, Xiaogang Chen, Laurent Cariou, Po-Kai Huang, Thomas J. Kenney, Qinghua Li, Robert J. Stacey, Feng Jiang
  • Patent number: 11128507
    Abstract: A method for signal distortion mitigation in a communication device with at least one transmitter in a communication system, generating a signal for transmission for each of the at least one transmitter; performing Peak-to-Average Power Ratio (PAPR) reduction and spectrum shaping of each of the generated signal to provide a distorted signal for transmission; determining signal distortions of the distorted signals, and precoding the determined signal distortions. The method further generating a composite signal for transmission based on the precoded determined signal distortions and the generated signal for transmission, to provide a composite signal, and transmitting the composite signal to at least one receiving communication device, wherein the precoding enables mitigating the signal distortion impact on the at least one receiver.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: September 21, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Shashi Kant, Eric Nordström, David Astely
  • Patent number: 11128391
    Abstract: A system and method for applying supervised learning to model a second wireless channel environment based upon data collected for a first wireless channel environment. In various embodiments, regression techniques are used to overcome known channel modeling issues. Using the data of one particular communication environment, it is possible to predict a path loss model of a different communication environment. As such, the required number of measurements and the complexity of the model prediction is greatly reduced.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: September 21, 2021
    Assignee: University of South Florida
    Inventors: Saud Mobark Aldossari, Kwang-Cheng Chen
  • Patent number: 11121750
    Abstract: Various embodiments disclosed herein provide for a base station device that can determine which layers should be mapped to codewords in a multi-layer, multi-antenna transmission. The base station device can transmit reference signals to a user equipment device, with each reference signal associated with a respective codeword to layer mapping combination, and the user equipment can send channel state information associated with each reference signal back to the base station device, and the base station device can rank each combination in terms of spectral efficiency or capacity and/or throughput. The base station device can inform the user equipment of the ranked combinations by sending a bit map with the ranked combinations to the user equipment device.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: September 14, 2021
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: SaiRamesh Nammi, Arunabha Ghosh
  • Patent number: 11121811
    Abstract: The embodiments of the invention disclose a data encapsulation and transmission methods, a device, and a computer storage medium. The data encapsulation method comprises: encapsulating, according to a CPRI line bit rate at a receiving terminal and using FTN encapsulation, a frame corresponding to CPRI to be a block frame combination comprising at least block frame, wherein each block frame comprises 256 words, and each word comprises a frame overhead byte and a frame payload byte.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: September 14, 2021
    Assignees: China Mobile Communication Co., Ltd Research Institute, China Mobile Communications Group Co., Ltd.
    Inventors: Han Li, Weiqiang Cheng, Lei Wang
  • Patent number: 11115795
    Abstract: A communication system (100) comprises a service terminal (ST) and a first transmitter function (TX1) in or at the service terminal (ST). The first transmitter function (TX1) is configured for sending a first short-range wireless communication signal (S1) to cause a first reaction (R1) when received by a mobile device (MD) being located within a first distance (D1) or distance range (DR1) from the service terminal (ST). The communication system (100) also comprises a second transmitter function (TX2) in or at the service terminal (ST). The second transmitter function (TX2) is configured for sending a second short-range wireless communication signal (S2) to cause a second reaction (R2) when received by the mobile device (MD) being located within a second distance (D2) or distance range (DR2) from the service terminal (ST), the second distance (D2) or distance range (DR2) being closer to the service terminal (ST) than the first distance (D1) or distance range (DR1).
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: September 7, 2021
    Assignee: CRUNCHFISH DIGITAL CASH AB
    Inventors: Kristian Sylwander, Joachim Samuelsson
  • Patent number: 11108520
    Abstract: This application discloses a reference signal transmission method and apparatus. The method includes: generating one or more OFDM symbols, where at least one OFDM symbol includes a PTRS resource block, the PTRS resource block includes at least two of three sequences: a PTRS sequence of Y elements, X elements after the PTRS sequence, and Z elements before the PTRS sequence, and the PTRS resource block occupies a plurality of consecutive resource elements REs, where X, Y, and Z are all integers; and sending the one or more OFDM symbols. According to the foregoing method and apparatus, inter-carrier interference is reduced, thereby improving spectral efficiency.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: August 31, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Dan Wu, Lei Chen
  • Patent number: 11095343
    Abstract: Provided are a method and device for feeding back and receiving channel information. The method comprises: determining a candidate resource set, selecting M resources from the candidate resource set, and transmitting at least one of indication information or channel state information of the selected M resources to a first communication node, where M is a positive integer; a selection criterion for selecting the M resources from the candidate resource set is determined in at least one of following manners: a selection criterion or a selection criterion set is agreed with the first communication node, and a selection criterion or a selection criterion set is obtained according to received indication information transmitted by the first communication node, and the selection criterion set comprises at least one selection criterion.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: August 17, 2021
    Assignee: XI'AN ZHONGXING NEW SOFTWARE CO., LTD.
    Inventors: Shujuan Zhang, Zhaohua Lu, YuNgok Li, Meng Mei, Yuhong Gong, Chuangxin Jiang
  • Patent number: 11095347
    Abstract: There is provided mechanisms for transmitting a two-port reference signal from an analog antenna array of an antenna arrangement. The analog antenna array comprises antenna elements of two polarizations. All antenna elements of each polarization are connected to a respective physical antenna port. A method comprises generating two virtual antenna ports, one for each of the two ports of the reference signal. The method comprises feeding the reference signal from the two virtual antenna ports to the two physical antenna ports via a virtualization network. The method comprises transmitting, via the antenna elements, the reference signal from the two physical antenna ports over a composite beamwidth in different spatial coverage per polarization for each of the two physical antenna ports whereby the transmitted reference signal, over the composite beamwidth, varies between having rank 1 and rank 2.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: August 17, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Andreas Nilsson, Sven Petersson, Fredrik Athley, Niklas Wernersson
  • Patent number: 11095321
    Abstract: A multiplexer capable of concurrently sending a radio-frequency signal in one of Band A and Band B belong to a low band group and a radio-frequency signal in a Band C belongs to a high band group that includes: a common terminal and input/output terminals; a low-pass filter arranged between the common terminal and the input/output terminal and whose pass band is frequencies in the low band group and whose attenuation band is frequencies in the high band group; and a high-pass filter arranged between the common terminal and the input/output terminal and whose pass band is the frequencies in the high band group and whose attenuation band is the frequencies in the low band group. The low-pass filter includes a first frequency-variable circuit including a switch, and at least one of the pass band and the attenuation band of the low-pass filter is changeable.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: August 17, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Taizo Hisano, Hideki Tsukamoto, Hirotsugu Mori
  • Patent number: 11089608
    Abstract: Disclosed is a wireless communication system and method for its use. In certain embodiments, Wi-Fi packets and Bluetooth packets are transmitted between multiple devices including pods, smartphones, computing devices, and appliances. Data transmitted over the system may include notifications and commands generated by users.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: August 10, 2021
    Assignee: Ikabit, Inc.
    Inventor: Divya Anantharaman
  • Patent number: 11088734
    Abstract: Base stations for MIMO wireless systems embodying efficient channel estimation techniques. One illustrative embodiment includes: an array of multiple antennas to exchange uplink and downlink signals with spatially-distributed user terminals; multiple transmit chains, each coupled to one of the multiple antennas by a respective transceiver that also couples that antenna to a respective one of multiple receive chains; and a controller. Each of the receive chains opportunistically derives estimated uplink channel response coefficients from packet headers in the wireless uplink signals, and the controller determines a steering transform based at least in part on the estimated channel response coefficients. The transmit chains apply the steering transform to spatially-distinct downlink signals to produce antenna-specific downlink signals for each antenna in the array.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: August 10, 2021
    Assignee: Skylark WL Holdings, LLC
    Inventors: Ryan E. Guerra, Clayton W. Shepard, Narendra Anand, Edward Knightly, Lin Zhong
  • Patent number: 11086374
    Abstract: A transmission interface circuit includes a power supply port, a first power path, first data transmission path, second power path and controller. The first power port is coupled to the storage device to provide the storage device with power. The first data transmission path is coupled between the storage device and the electronic device to perform data transmission between the storage device and the electronic device. The second power port is coupled to the electronic device to provide the electronic device with power. The controller respectively control enables or disables the first power path, the second power path and the first data transmission path according to the information transmitted from the electronic device.
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: August 10, 2021
    Assignee: JMicron Technology Corp.
    Inventors: Chao-Yin Liu, Cheng-Ping Fang
  • Patent number: 11079419
    Abstract: A system for testing a Nakagami fading channel and a verification method thereof are provided. The testing system includes a signal generator, a Nakagami fading channel simulator, and a computer. The signal generator is used to output a sine wave signal whose frequency is f and transmit the sine wave signal to the Nakagami fading channel simulator and the computer. The Nakagami fading channel simulator is used to generate a Nakagami fading channel. The computer is used to perform data processing and analysis. In the verification method, time domain fading characteristics, first-order statistics characteristics, and second-order statistics characteristics of the Nakagami fading channel are respectively verified. Verifying the time domain fading characteristics is verifying a waveform fluctuation rate and a fluctuation range on a time domain under different Nakagami fading factors.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: August 3, 2021
    Assignee: WUHAN UNIVERSITY
    Inventors: Yigang He, Yuan Huang, Hui Zhang, Bing Li, Baiqiang Yin, Jiajun Duan
  • Patent number: 11082854
    Abstract: A device implementing signal validation for secure ranging includes at least one processor configured to obtain a channel estimate based at least in part on a signal received from an other device over a channel. The at least one processor may be further configured to determine an average noise level of a beginning portion of the channel estimate and establish a direct path signal acceptance level for the channel estimate based at least in part on the average noise level. The at least one processor may further configured to identify a candidate direct path signal for the channel in a remaining portion of the channel estimate and validate the candidate direct path signal as a direct path signal for the channel when a signal level corresponding to the candidate direct path signal satisfies the direct path signal acceptance level, otherwise reject the candidate direct path signal as the direct path signal for the channel.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: August 3, 2021
    Assignee: Apple Inc.
    Inventors: Alejandro J. Marquez, Dinesh Poopalaratnam, Shang-Te Yang, Indranil Sen, Peiyu Chen
  • Patent number: 11070274
    Abstract: A receiving device for use in a wireless OFDM communication system comprises two or more receive antennas for receiving OFDM signals received over a channel from a transmission device having two or more transmit antennas and applying transmit beamforming, and circuitry configured to perform channel estimation to estimate the channel, generate transmit beamforming information based on the channel estimation, said transmit beamforming information comprising beamforming information per subcarrier or time domain tap, determine a reduced set of transmit beamforming information from said transmit beamforming information, wherein said reduced set comprises beamforming information for a reduced set of subcarriers in the frequency domain or for a reduced set of taps in the time domain, wherein the subcarriers of said reduced set or the taps of said reduced set are determined based on an error criterion, and feed back the reduced set of transmit beamforming information to the transmission device.
    Type: Grant
    Filed: August 16, 2018
    Date of Patent: July 20, 2021
    Assignee: SONY CORPORATION
    Inventors: Felix Fellhauer, Thomas Handte, Dana Ciochina, Nabil Sven Loghin
  • Patent number: 11070224
    Abstract: A method for providing back-compatibility for rational sampling rate disparities between two circuitries, comprises: a) providing a Phase Locked Loop (PLL) operating at a rate different than that of the Symbols generator, which is coupled to a Digital to Analog Converter (DAC) or an Analog to Digital Converter (ADC); b) providing an interpolation filter coupled to said converter, which filter is adapted to perform sampling rate conversion operations on the samples using zero-stuffing, filtering, and decimation, or the like computation-saving algorithm; and c) obtaining the sampling of the symbols at the required and compatible rate.
    Type: Grant
    Filed: May 7, 2020
    Date of Patent: July 20, 2021
    Assignee: Mellanox Technologies, Ltd.
    Inventors: Hananel Faig, Adam Kaminer, David (Dima) Rochlin, Raanan Ivry
  • Patent number: 11063599
    Abstract: An apparatus and method are provided. The apparatus includes a phase locked loop (PLL) configured to generate a reference signal; a sub-sampling PLL (SS-PLL) connected to the PLL and configured to sub-sample the reference signal; and a first pre-charge circuit connected to the SS-PLL and configured to allow an output voltage of the SS-PLL to transition to an operating voltage to indicate that a difference between two voltage inputs is zero on average.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: July 13, 2021
    Inventors: Yongrong Zuo, Chih-Wei Yao, Wanghua Wu
  • Patent number: 11063624
    Abstract: A communication device is adapted to perform a communication method. The communication method includes: initializing a link between the communication device and a corresponding device; responding to a being-trained procedure to obtain a being-trained log; and sending a training command string according to the being-trained log. Therefore, the corresponding device adjusts its transmission characteristic according to the received training command string to reach appropriate interoperability between devices.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: July 13, 2021
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventor: Chih-Hung Huang
  • Patent number: 11057099
    Abstract: A communication circuit for communication at a carrier frequency via multiple antenna elements of a radio apparatus is disclosed. The communication circuit comprises a plurality of radio units, wherein each radio unit of said plurality of radio units is arranged to be connected to a separate antenna element. An LO signal generation unit is arranged to generate a plurality of LO signals at distinct frequencies, and supply a unique LO signal of the plurality of LO signals to each radio unit of the plurality of radio units. A corresponding radio apparatus and method are also disclosed.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: July 6, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventor: Peter Jakobsson
  • Patent number: 11055244
    Abstract: An input/output (I/O) interface system for computing devices is disclosed. The I/O interface system includes an externally-engageable USB-C interface connector. A first I/O protocol controller circuit couples to the USB-C interface connector via multiple bidirectional serial lanes. Each of the bidirectional serial lanes transfers a single serial stream of data in a simultaneously bidirectional manner. A second I/O protocol controller circuit couples to the USB-C interface connector via multiple unidirectional serial lanes. Each of the unidirectional serial lanes transfers a single serial stream of data in a unidirectional manner. Mode control circuitry selects between the first I/O protocol controller circuit and the second I/O protocol controller circuit for data transfers with the USB-C interface connector based on a detected signaling media externally connected to the USB-C interface connector.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: July 6, 2021
    Assignee: Marvell Asia Pte, LTD.
    Inventors: Paul Langner, Simon Edelhaus
  • Patent number: 11051182
    Abstract: Example information configuration methods, apparatus, and systems are described. One example method includes generating first configuration information by a network device. The first configuration information includes at least one of the following information: receive beam indication information of a terminal device, reference signal sending and channel state information feedback period indication information, reference signal function indication information, or beam sweeping method indication information. The network device sends the first configuration information to the terminal device by using layer one or layer two signaling. The embodiments of the present invention provide a measurement information configuration solution when a narrow beam technology is used in a high-frequency band.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: June 29, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Xiaoyong Tang, Xiaona Wang, Huang Huang
  • Patent number: 11051254
    Abstract: The present disclosure discloses a method and a device in a communication node for wireless communications. The communication node monitors first-type information blocks in a first time window, receives a first signaling, and transmits a first radio signal; the first signaling is used for determining time-frequency resources occupied by the first radio signal; information carried by the first radio signal comprises a first difference value, a first reference power value is used for determining the first difference value, the first reference power value is a power value for a wireless transmission on sidelink; when X first-type information blocks are detected in the first time window, the X first-type information blocks respectively correspond to X first-type parameters, X is a positive integer greater than 1; the X first-type parameters are used for determining a target parameter, the target parameter is used for determining the first reference power.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: June 29, 2021
    Assignee: SHANGHAI LANGBO COMMUNICATION TECHNOLOGY COMPANY LIMITED
    Inventors: Zheng Liu, XiaoBo Zhang
  • Patent number: 11050530
    Abstract: According to an embodiment, a system can comprise a processor and a memory that can store executable instructions that, when executed by the processor, facilitate performance of operations. The operations can include generating a first signal in an initial domain and transforming the first signal into a first portion of a time-frequency grid of a time-frequency domain, resulting in a transformed first signal. The operations further include combining the transformed first signal with a second signal of a second portion of the time-frequency grid, resulting in a combined signal, and transmitting the combined signal to a user equipment device for a further transformation. The operations further include receiving a response signal from the user equipment device that was configured, based on the further transformed first signal.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: June 29, 2021
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Xiaoyi Wang, Salam Akoum, Ralf Bendlin
  • Patent number: 11050599
    Abstract: Uplink synchronization may be achieved without adjusting for timing advance by using longer/larger cyclic prefix durations to compensate for differences in propagation delays, including the cell round-trip delays and environment based multipath delays. In this way, timing advance reference signaling may be omitted from the uplink transmissions. The cyclic prefix duration may be determined based on a characteristic of a base station's coverage area, such as a coverage area size or coverage area type. For example, a longer cyclic prefix length may be used when a base station has a larger coverage area than when the base station has a smaller coverage area. As another example, a different cyclic prefix length may be used for different coverage types. The method provided in this embodiment improves the capabilities of automatic driving and ADAS of electric vehicles. The method can be applied to vehicle networking, such as V2X, LTE-V, V2X, etc.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: June 29, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Liqing Zhang, Malte Schellmann
  • Patent number: 11044122
    Abstract: A semi-blind channel estimation method and apparatus are provided. The semi-blind channel estimation method includes: step S1: obtaining data that includes a first training sequence and that is received by a receive end; step S2: performing minimum mean square error channel estimation based on the data and the prestored first training sequence, to obtain a channel parameter matrix; step S3: detecting the first training sequence by using a least square detection algorithm, to obtain estimated data; and step S4: using the estimated data as a second training sequence, replacing the first training sequence in step S2 with the second training sequence, and cyclically performing step S2 and step S3 on the second training sequence, until a channel parameter matrix obtained last time is the same as a channel parameter matrix obtained this time, and then stopping circulation, to estimate a final channel parameter matrix.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: June 22, 2021
    Assignee: SHEN ZHEN KUANG-CHI HEZHONG TECHNOLOGY LTD.
    Inventors: Ruopeng Liu, Chunlin Ji, Lin You
  • Patent number: 11038571
    Abstract: A wireless communication node and method therein for generating beamformed signals by means of backscattering in a wireless communication network are disclosed. The wireless communication node receives a radio frequency signal at a plurality A of antennas. Each antenna is coupled to one of a number of impedance matrices by one of a plurality A of switches. The wireless communication node generates a first baseband signal based on data symbols to be transmitted in a baseband signal generator. The states of each switch are controlled based on its specific switch control signal such that each antenna impedance is selected among a number M of impedances, and thereby the received RF signal at each antenna is modulated by the first baseband signal with its specific phase and reflected. The beamformed signals are generated by the plurality A of antennas by reflecting the modulated RF signals from each antenna.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: June 15, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ)
    Inventors: Miguel Lopez, Thomas Olsson, Leif Wilhelmsson
  • Patent number: 11038714
    Abstract: A Controller Area Network, CAN, transceiver comprising a receiver arrangement for coupling to a CAN bus and configured to determine a differential signal from analog signalling received from the CAN bus; and a receive output for coupling to a CAN controller and wherein the receiver arrangement provides a digital output signal to the receive output based on the differential signal; wherein the receiver arrangement operates in at least a first mode in which it is configured to provide the digital output signal comprising logic 0 when the differential signal is greater than a first receiver threshold and provide the digital output signal comprising logic 1 when the differential signal is less than said first receiver threshold unless said differential signal satisfies a condition, whereupon the receiver arrangement is configured to provide the digital output signal comprising logic 0, wherein the condition comprises the differential signal being below an activity-voltage threshold.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: June 15, 2021
    Assignee: NXP B.V.
    Inventor: Matthias Berthold Muth
  • Patent number: 11038526
    Abstract: Various energy efficient data encoding schemes and computing devices are disclosed. In one aspect, a method of transmitting data from a transmitter to a receiver connected by plural wires is provided. The method includes sending from the transmitter on at least one but not all of the wires a first wave form that has first and second signal transitions. The receiver receives the first waveform and measures a first duration between the first and second signal transitions using a locally generated clock signal not received from the transmitter. The first duration is indicative of a first particular data value.
    Type: Grant
    Filed: February 17, 2020
    Date of Patent: June 15, 2021
    Assignee: ADVANCED MICRO DEVICES, INC.
    Inventors: Greg Sadowski, John Kalamatianos
  • Patent number: 11025259
    Abstract: Systems and methods for integrating injection-locked oscillators into transceiver arrays are disclosed. In one aspect, there is provided an injection-locked oscillator (ILO) distribution system including a master clock generator configured to generate a master clock signal. The ILO distribution system also includes an ILO distribution circuit including an ILO and configured to receive the master clock signal. The ILO is configured to generate a reference clock signal based on the master clock signal. The ILO distribution circuit is further configured to generate an output signal indicative of an operating frequency of the ILO. The ILO distribution system further includes an injection-locked detector (ILD) configured to receive the master clock signal and the output signal. The ILD is further configured to determine whether the ILO is in a locked state or in an unlocked state based on the master clock signal and the output signal.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: June 1, 2021
    Assignee: Skyworks Solutions, Inc.
    Inventors: Sanjeev Jain, Foad Arfaei Malekzadeh
  • Patent number: 11025258
    Abstract: Systems and methods for integrating injection-locked oscillators into transceiver arrays are disclosed. In one aspect, there is provided an injection-locked oscillator (ILO) distribution system including a master clock generator configured to generate a master clock signal. The ILO distribution system also includes an ILO distribution circuit including an ILO and configured to receive the master clock signal. The ILO is configured to generate a reference clock signal based on the master clock signal. The ILO distribution circuit is further configured to generate an output signal indicative of an operating frequency of the ILO. The ILO distribution system further includes an injection-locked detector (ILD) configured to receive the master clock signal and the output signal. The ILD is further configured to determine whether the ILO is in a locked state or in an unlocked state based on the master clock signal and the output signal.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: June 1, 2021
    Assignee: Skyworks Solutions, Inc.
    Inventors: Sanjeev Jain, Foad Arfaei Malekzadeh
  • Patent number: 11018737
    Abstract: Disclosed are a codebook-based signal transmission and reception method in a multi-antenna wireless communication system and an apparatus therefor.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: May 25, 2021
    Assignee: LG ELECTRONICS INC.
    Inventors: Haewook Park, Kijun Kim, Jonghyun Park
  • Patent number: 11018829
    Abstract: A method of configuring a pilot signal includes defining a first pilot signal arrangement and defining a second pilot signal arrangement. Also, the method includes determining, by a communications controller, a first determined pilot signal arrangement in accordance with the first defined pilot signal arrangement, the second defined pilot signal arrangement, and a set of characteristics and transmitting, by the communications controller, the pilot signal having the first determined pilot signal arrangement.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: May 25, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Zhihang Yi, Jianglei Ma, Liqing Zhang, Kelvin Kar Kin Au
  • Patent number: 11012937
    Abstract: Apparatuses and methods for controlling a manner of delivering content to a content user in a mobile telecommunication network are provided. The content is sent to the content user using first a first transmission rate when the content user is in a first radio state and uses a first battery power, and then using a second transmission rate that is lower than the first transmission rate, when the content user is in a second radio state and uses a second battery power that is smaller than the first battery power. The sending is performed such as, (A) while delivering the content, an amount of the content already received by the content user to exceed an amount of the content used by the content user, and (B) to minimize an energy used by the content user during delivery.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: May 18, 2021
    Assignee: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Ayodele Damola, Lars Westberg
  • Patent number: 11012885
    Abstract: Devices, systems, and methods are described herein for communicating data using an adjustable software defined radio. In one aspect, an ultra-narrowband communication device may include a radio frequency (RF) element and a computing element communicatively coupled to the RF element. The computing element, which may include at least one processor and memory, may define a software defined radio. The memory of the computing element may store instructions, that when executed by the at least one processor, configure the communication device to at least one of transmit or receive data over at least two different ultra-narrowband channels using a first communication protocol. The software defined radio may be adjustable to operate at any of a variety of different ultra-narrowband channels responsive to a frequency band selection or allocation.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: May 18, 2021
    Assignee: Agile Radio Management Inc.
    Inventors: Thomas W Irwin, Kyle Anthony Stanton, Surjit Brad Gill, Carlos Alfonso Salcido, Jr.
  • Patent number: 11005622
    Abstract: Methods, systems, and devices for wireless communications are described. A transmitting device may identify a set of allocated resource blocks and a number of the allocated resource blocks. The transmitting device may determine a bit sequence length corresponding to the number of allocated resource blocks. The transmitting device may generate a reference signal based on a bit sequence having the bit sequence length and transmit the reference signal within the allocated resource blocks. The transmitting device may modulate the bit sequence using a ?/2 binary phase shift keying modulation scheme. The transmitting device may modulate a data bit sequence using the same modulation scheme to generate a modulated data bit sequence, where a peak to average power ratio (PAPR) of tones transporting the modulated data bit sequence satisfies a PAPR threshold and a PAPR of tones transporting the reference signal also satisfies the PAPR threshold.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: May 11, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Seyong Park, Wei Yang, Yi Huang, Renqiu Wang, Sony Akkarakaran, Xiao Feng Wang, Peter Gaal
  • Patent number: 10997095
    Abstract: Systems, apparatuses, and methods for training procedures on reference voltages and sampling times associated with symbols communicated with a memory device are described. The training procedures may be configured to compensate for variations that may occur in different symbols of a signal. For example, an individual training operation may be performed for each reference voltage within a first unit interval. These individual training operations may allow a reference voltage of the first unit interval to be positionable independent of other reference voltages in the same unit interval or in different unit intervals. In another example, an individual training operation may be performed for the sampling time associated with a reference voltage. These individual training operations may allow a sampling time associated with a reference voltage in the first unit interval to be positionable independent of other sampling times in the same unit interval or in different unit intervals.
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: May 4, 2021
    Assignee: Micron Technology, Inc.
    Inventors: Peter Mayer, Thomas Hein, Martin Brox, Wolfgang Anton Spirkl, Michael Dieter Richter