Crosstalk Suppression Patents (Class 370/201)
  • Patent number: 11901968
    Abstract: A method of operating an Ethernet transceiver includes initializing the Ethernet transceiver during a training mode of operation by monitoring background link operating characteristics with on-chip circuitry during a non-data-transfer interval to establish a baseline alien crosstalk value. Training data is then transmitted at a first transmit power level and first data rate to a link partner during a data transfer interval. The link is monitored with the on-chip circuitry during the data transfer interval to detect feedback indicating alien crosstalk effects to neighboring Ethernet links due to the transmitting. The first data rate and/or first transmit power level is then adjusted to an adjusted second data rate and/or second transmit power level based on the feedback. The Ethernet transceiver is then operated in a normal data transfer mode utilizing the adjusted second data rate and/or transmit power level.
    Type: Grant
    Filed: April 20, 2021
    Date of Patent: February 13, 2024
    Assignee: Marvell Asia Pte, Ltd.
    Inventors: David Shen, Seid Alireza Razavi Majomard, KongHoei Susanto Lim
  • Patent number: 11894868
    Abstract: A device having a plurality of pins configured to connect circuits within an integrated circuit package to circuits outside of the integrated circuit package. A driver enclosed within the package is programmable to generate a spread spectrum signal to represent data being transmitted from a pin of the device. Frequency distribution of the signal spreading over a bandwidth in a frequency domain can be programmed to customize the electromagnetic emission caused by the communication of data through the pin. The frequency spreading can be programmed to reduce energy consumption, electromagnetic interference, and/or errors in receiving the data transmitted via the pin. The settings can be programmed into registers enclosed in the integrated circuit package to control the driver and/or dynamically adjusted using an artificial intelligent engine to optimize a cost function.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: February 6, 2024
    Assignee: Micron Technology, Inc.
    Inventors: Robert Richard Noel Bielby, Poorna Kale
  • Patent number: 11831387
    Abstract: Methods, systems, and devices for wireless communication are described. A communication device, for example, a user equipment (UE) may select a default beam to use for downlink communication while operating in a full duplex mode. The UE may receive from another communication device, for example, a base station control signaling indicating the default beam for the UE to use for the downlink communication. A default beam (which may also be referred to as a full duplex beam) may be a default downlink beam or a default uplink beam. In some examples, the UE may select a default beam pair to use for downlink communication and uplink communication while operating in the full duplex mode. A default beam pair (which may also be referred to as a full duplex beam pair) may include both a default downlink beam and a default uplink beam.
    Type: Grant
    Filed: June 24, 2021
    Date of Patent: November 28, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Qian Zhang, Yan Zhou, Junyi Li, Navid Abedini, Tao Luo
  • Patent number: 11683860
    Abstract: Methods and devices for a home power networking system including a first wireless access point (AP) configured to perform wired communications over a first circuit connected to the first wireless AP. The first wireless AP further performs wireless communications with a second wireless AP, wherein the second wireless access point is connected to a second circuit and is not connected to the first circuit. The first wireless AP provides wireless transport through the second wireless AP to bridge communications between the first circuit and the second circuit.
    Type: Grant
    Filed: November 4, 2021
    Date of Patent: June 20, 2023
    Assignee: Coherent Logix, Incorporated
    Inventors: Kevin A. Shelby, Michael B. Doerr, Michael B. Solka, Yama Yasha
  • Patent number: 11641296
    Abstract: Various embodiments provide for data transmission using modulated carrier signals to carry data, where the carrier signal comprises a predetermined sequence of symbols. An embodiment can be used in such applications as data network communications between sensors (e.g., cameras, motion, radar, etc.) and computing equipment within vehicles (e.g., smart and autonomous cars).
    Type: Grant
    Filed: March 22, 2022
    Date of Patent: May 2, 2023
    Assignee: Ethernovia Inc.
    Inventors: Hossein Sedarat, Ramin Shirani, Roy T. Myers, Jr., Darren S. Engelkemier
  • Patent number: 11637588
    Abstract: A wired communication systems, a subscriber device and a method, and more specifically related to initialization and/or update of communication parameters used for communication through the wired communication systems. An access node comprises at least one processor and memory storing instructions that when executed by the at least one processor cause a local transceiver of the access node to transmit signaling data via a subscriber line to a remote transceiver, the signaling data identifying particular symbol positions within a sequence of symbols transmitted over the subscriber line during show-time as being suitable for characterizing a direct communication channel between the local transceiver and the remote transceiver.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: April 25, 2023
    Assignee: Nokia Solutions and Networks Oy
    Inventors: Paschalis Tsiaflakis, Alain Anderlini, Danny Van Bruyssel
  • Patent number: 11632262
    Abstract: Techniques discussed herein can facilitate handshake procedures for Point-to-Multipoint (P2MP) communication in connection with various DSL (Direct Subscriber Line) technologies. Various embodiments can employ different methods of separation of signaling to arrange P2MP handshake procedures based on existing Point-to-Point (P2P) handshake procedures. Example embodiments can employ one of separation in frequency, separation in time, or separation in transmission power level.
    Type: Grant
    Filed: February 2, 2021
    Date of Patent: April 18, 2023
    Assignee: MaxLinear, Inc.
    Inventors: Vladimir Oksman, Dietmar Schoppmeier, Martin Fuss
  • Patent number: 11588600
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may select an antenna for transmitting a New Radio sounding reference signal (SRS) such that antenna resource conflicts with receiving an LTE cell-specific reference signal are minimized based at least in part on an antenna resource configuration. The UE may transmit the SRS on the selected antenna. Numerous other aspects are described.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: February 21, 2023
    Assignee: QUALCOMM INCORPORATED
    Inventor: Akash Kumar
  • Patent number: 11438061
    Abstract: A method and corresponding apparatus for reducing a backlight crosstalk impact of an optical assembly. The method comprises: sequentially presetting two drive currents of a laser corresponding to a target wavelength channel as a first and second drive currents, respectively collecting backlight crosstalk data of the target wavelength channel to other wavelength channels, and generating a first and second crosstalk data matrix; carrying out fitting on the first and second crosstalk data matrix to acquire a crosstalk data calibration matrix; and calculating target backlight data of the target wavelength channel according to the crosstalk data calibration matrix, to calculate front light transmitting power of the target wavelength channel according to the target backlight data, thereby monitoring the optical assembly according to the front light transmitting power. The crosstalk impact can be reduced without an additional optical element, thereby improving accuracy of backlight detection and saving costs.
    Type: Grant
    Filed: December 25, 2018
    Date of Patent: September 6, 2022
    Inventors: Zhi Yang, Shouqi Liu, Jun Liu
  • Patent number: 11347669
    Abstract: An equalization time configuration method, applied to a processor system in which a Peripheral Component Interconnect Express (PCIe) bus or a Cache Coherent Interconnect for Accelerators (CCIX) bus is used, includes determining a working physical layer (PHY) type of a master chip and a working PHY type of a slave chip, determining an equalization time of the slave chip in a fourth phase of equalization based on the working PHY type of the master chip, and determining an equalization time of the master chip in a third phase of the equalization based on the working PHY type of the slave chip.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: May 31, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Yongyao Li, Jiang Zhu, Fei Luo, Jiankang Li, Yulong Ma
  • Patent number: 11343751
    Abstract: A method for connecting a terminal outside the range of its home network, to a network of a visited area covered by a plurality of networks. The method includes sending a request relating to the connection, including an identifier relating to the visited area, receiving a response message to the request, including a list of at least one network of the plurality of networks, to which the terminal should connect in priority, disconnecting the terminal and connecting the terminal to the priority network of the list. A processing method includes receiving the request including an identifier relating to the visited area, obtaining, on the basis of the identifier, the list of at least one network from the plurality of networks, to which the terminal should connect in priority, and sending a response message to the request, including the list.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: May 24, 2022
    Assignee: ORANGE
    Inventors: Cedric Bonnet, Sanaa El Moumouhi
  • Patent number: 11330384
    Abstract: Disclosed herein is an artificial intelligence device including a communication interface configured to receive a reference signal in a time domain for echo cancellation of an external device and a processor configured to determine whether a spectral density at at least one test target frequency is less than or equal to a preset spectral density reference value at at least one test target time point and determine that a failure occurs in an audio component when the spectral density is less than or equal to the preset spectral density reference value.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: May 10, 2022
    Assignee: LG ELECTRONICS INC.
    Inventors: Junmin Lee, Inho Lee
  • Patent number: 11258479
    Abstract: In accordance with an embodiment, the method includes detecting an update event whereupon a precoder needs to be updated, sending signal adjustment information to a receiver remotely coupled to a subscriber line out of the plurality of subscriber lines indicative of a signal compensation factor to be applied to a receive communication signal to compensate for a channel bias caused by the scheduled precoder update, and time-coordinating the precoder update with the enforcement of the signal compensation factor at the receiver.
    Type: Grant
    Filed: January 7, 2014
    Date of Patent: February 22, 2022
    Assignee: Alcatel Lucent
    Inventors: Jochen Maes, Michael Timmers, Dirk Vanderhaegen, Carl Nuzman, Danny Van Bruyssel
  • Patent number: 11212812
    Abstract: A method of allocating resources in a first wireless system, wherein the first wireless system shares a frequency spectrum with a second wireless system, is described. The method comprises detecting a level of interference to the second wireless system caused by the first wireless system on a first frequency within the spectrum; determining if transmission on the first frequency should be restricted based on the level of interference; and restricting transmissions in the first system on the first frequency if it was determined that transmission on the first frequency should be restricted while allowing normal use of the remaining portions of the frequency spectrum to continue in the first system. A system for allocating resources in a first wireless system, wherein the first wireless system shares a frequency spectrum with a second wireless system, is also described.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: December 28, 2021
    Assignee: Federated Wireless, Inc.
    Inventors: Masoud Olfat, Kurt Schaubach
  • Patent number: 11095407
    Abstract: Embodiments of the present invention provide a signal processing method, including: dividing a frequency band used to send a downlink synchronization symbol into at least two parts of frequency bands that do not overlap, where the two parts of frequency bands are a first frequency band and a second frequency band; alternately allocating frequencies in the first frequency band to a probe tone and a flag tone; and allocating all frequencies in the second frequency band to a probe tone; and modulating a downlink pilot sequence to probe tones in the first frequency band and the second frequency band, and sending the downlink pilot sequence to a peer device. The embodiments of the present invention further provide a signal processing apparatus and a network system.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: August 17, 2021
    Assignee: Huawei Technologies Co., Lid.
    Inventors: Fanglin Sun, Cao Shi, Zhong Pan, Jianping Tu
  • Patent number: 11082087
    Abstract: A method and apparatus for transmitting data from a transmitter device to one or more receiver devices, each of which is connected to the transmitter device via a respective wire connection, the transmitter device being operable to transmit signals onto the wire connections over different channels, the method comprising, for each channel: determining a value of a first function which is a function of a power mask for transmitting the data over the channels; determining a value of a second function which is a function of an upper bound for a channel capacity of the channel; determining a value of a third function, the third function being a function of the first and second functions; using the determined value of the third function, determining a transmission power for that channel; and transmitting, by the transmitter device, data over that channel at the transmission power determined for that channel.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: August 3, 2021
    Assignee: BRITISH TELECOMMUNICATIONS public limited company
    Inventors: Anas Al Rawi, Ian Horsley
  • Patent number: 11076441
    Abstract: A mesh network system is provided that enables a parent node to regain communication with a child node that is unresponsive due to bad link conditions on the currently used communication channel. The parent and the unresponsive child node are configured to respond to unreachability conditions by having synchronized transmit and reception scans for signals on each available channel. Once a determination has been made that an alternate channel is available that allows communication, embodiments further provide a mechanism for determining whether to trigger a network-wide channel switch, if, for example, the node is critical to an application supported by the network.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: July 27, 2021
    Assignee: NXP USA, Inc.
    Inventors: Silviu Petrut Petria, Elvis Gabriel Nica
  • Patent number: 11050502
    Abstract: The disclosure relates to a 5G or pre-5G communication system which will be provided to support a higher data rate beyond a 4G communication system such as LTE. According to an embodiment of the disclosure, a method performed by a terminal in a wireless cellular communication system is provided. The method comprises the steps of: receiving, from a serving base station, network deployment information of a neighboring cell, which includes information on the type of the neighboring cell; and receiving data from the serving base station on the basis of the network deployment information of the neighboring cell.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: June 29, 2021
    Inventors: Cheolkyu Shin, Younsun Kim, Hoondong Noh, Youngwoo Kwak, Seunghoon Choi
  • Patent number: 10879936
    Abstract: A system includes a data bus, Q registers each having a register width B, and a receiver circuit. The receiver circuit is configured for receiving, at each clock cycle of a number of clock cycles of the communication system, a bit lane of data on a data bus, each bit lane including Q valid bits of an interleaved packet of length E. The receiver circuit is configured for placing, at each clock cycle, each of the Q valid bits into a respective bin of Q bins each having a bin width equal to the register width B. The receiver circuit is configured for determining that the bins are full, and in response to determining that the bins are full, transferring the contents of the bins into the registers.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: December 29, 2020
    Assignee: KEYSIGHT TECHNOLOGIES, INC.
    Inventor: Damon Lee Campbell
  • Patent number: 10880017
    Abstract: There are provided a method, comprising monitoring if a predefined reference signal is decoded from a received signal, wherein the received signal is received at a predetermined resource element defined by a symbol time and a frequency range; informing a control device on receipt of an interfering pulsed signal if the reference signal is not decoded from the received signal; and a method, comprising monitoring if a total received power on a frequency range oscillates in time during RSRP cannot be calculated in a time period, wherein the frequency range and the time period are allocated to exclusively receiving reference signals; informing a control device on receipt of an interfering pulsed signal if the total received power oscillates in time.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: December 29, 2020
    Assignee: NOKIA SOLUTIONS AND NETWORKS OY
    Inventors: Kamil Bechta, Fabiano de Sousa Chaves, Stanislaw Gadzinski, Patryk Paczka, Marcin Krzysztof Szczurowski
  • Patent number: 10869286
    Abstract: Disclosed are a method for transmitting and receiving a synchronization signal in a wireless communication system and an apparatus therefor. Specifically, a method for performing synchronization signal by transmitting and receiving a synchronization signal includes: receiving, from a base station, a primary synchronization signal (PSS) and a secondary synchronization signal (SSS); and performing synchronization by using the received PSS and the received SSS, in which a sequence for the SSS may be generated by a product between a first sequence and a second sequence and the number of first sequences may be configured to be larger than the number of second sequences.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: December 15, 2020
    Assignee: LG Electronics Inc.
    Inventors: Seokmin Shin, Hyunsoo Ko, Kijun Kim
  • Patent number: 10848283
    Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: November 24, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Peng Xue, Cheol Jeong, Namjeong Lee
  • Patent number: 10848287
    Abstract: A method and user equipment in a carrier frequency to perform contention based random access. The method includes receiving an indication from a network entity whether a cell in the carrier frequency supports a 2-step random access procedure. When the 2-step random access procedure is supported in the cell, a random access procedure is selected between the 2-step random access procedure and a 4-step random access procedure, wherein each of the 2-step random access procedure and the 4-step random access procedure includes one or more preambles, which are configured in the cell to be associated with one of the 2-step random access procedure or the 4-step random access procedures.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: November 24, 2020
    Assignee: Motorola Mobility LLC
    Inventors: Hyejung Jung, Vijay Nangia, Ravikiran Nory, Ravi Kuchibhotla, Robert T Love
  • Patent number: 10840971
    Abstract: Methods, systems, and devices for pre-distortion of multi-level signaling are described. A device may identify two multi-level signals that are to be transmitted over two transmission lines at the same time. The device may estimate the crosstalk expected to be caused by one of the multi-level signals on the other during propagation. Based on the expected crosstalk, the device may generate a signal that compensates for the expected crosstalk. In some examples, the signal may be a combination of the first signal and a cancelation signal. In some examples, once the compensated signal has been generated, it is transmitted over its respective transmission line at the same time that the other multi-level is transmitted over its respective transmission line.
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: November 17, 2020
    Assignee: Micron Technology, Inc.
    Inventors: Wolfgang Anton Spirkl, Michael Dieter Richter, Martin Brox, Peter Mayer, Thomas Hein
  • Patent number: 10812137
    Abstract: In one embodiment, an apparatus includes four independent single pair Ethernet ports coupled to a cable comprising four wire pairs for communication with a micro-switch, the micro-switch configured for communication with four endpoint devices, each of the endpoint devices in communication with the micro-switch over a single pair Ethernet cable comprising one of the four wire pairs. Each of the four independent single pair Ethernet ports comprises an echo canceller for receiving input from a transmitter at one of the independent single pair Ethernet ports and each of the other independent single pair Ethernet ports to cancel alien crosstalk between the four wire pairs.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: October 20, 2020
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Amrik S. Bains, Kenneth Christian Naumann
  • Patent number: 10742454
    Abstract: Provided is a transmission device of a single carrier frequency-domain equalization scheme having a circuit in which a cyclic prefix (CP) and an overlap margin (OM) are inserted, and a time-domain windowing processing circuit to which is input a transmission symbol into which the CP and the OM have been inserted. The time-domain windowing processing circuit multiplies an arbitrary time-domain window function and suppresses out-of-band emission. In the time-domain windowing processing circuit, a window transition length of the time-domain window function is equal to or larger than a length of the CP.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: August 11, 2020
    Assignee: KYOTO UNIVERSITY
    Inventors: Keiichi Mizutani, Hiroshi Harada, Takeshi Matsumura, Yosuke Kodama
  • Patent number: 10727900
    Abstract: A method and system are provided for communication between in each case at least two communication terminal devices that are connected to a respective one of at least two coupled communication lines in which a communication protocol is utilized for communication over the respective one of the communication lines and the communication protocol controls transmitting and receiving of communication signals of the respective ones of the at least two communication terminal devices, for which purpose signal carriers are utilized.
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: July 28, 2020
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Tobias Mittnacht, Klaus-Peter Linzmaier
  • Patent number: 10721107
    Abstract: According to embodiments, methods, devices and systems can include generating packet data for a narrow band packet. Transmitting first preamble data across a first channel followed by the narrow band packet with a second preamble across at least one resource unit (RU). The RU can have a smaller bandwidth than the first channel and occupy a portion of the first channel. The first preamble can be configured to enable detection of a packet transmitted in the first channel, and the second preamble is configured to enable detection of a packet transmitted in the RU without the first preamble.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: July 21, 2020
    Assignee: Cypress Semiconductor Corporation
    Inventors: Paul Strauch, Ayush Sood, Kiran Uln, Kamesh Medapalli, Prasanna Sethuraman, Rajendra Kumar Gundu Rao, Saishankar Nandagopalan
  • Patent number: 10708963
    Abstract: A D2D device for a wireless communication network is described. The D2D device comprises a set of transmitters and/or a set of receivers. Furthermore, the D2D device is adapted for determining one or more transmitters from the set of 5 transmitters and/or one or more receivers from the set of receivers, which are to be used for at least one D2D operation. There are also described related methods and devices.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: July 7, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Iana Siomina, Muhammad Kazmi
  • Patent number: 10659260
    Abstract: The present application disclosed a decision feedback equalization processing device and method. The device comprises: a channel estimator for receiving an input signal, and determining, based on the input signal, an input signal autocorrelation matrix Ryy, an input-output signal cross-correlation matrix Ryx and an input-output signal cross-correlation vector ryx; a tap coefficient calculator for receiving Ryy, Ryx and ryx, and calculating a feed-forward equalizer (FFE) tap coefficient vector g and a feedback equalizer (FBE) tap coefficient vector f, wherein at least one of the FFE tap coefficient vector g and the FBE tap coefficient vector f is calculated using a conjugate gradient descent algorithm. The tap coefficient calculator comprises: a circulant matrix construction unit and a fast Fourier transformation (FFT) calculating unit.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: May 19, 2020
    Assignee: MONTAGE LZ SEMICONDUCTOR (SHANGHAI) CO., Ltd.
    Inventors: Gang Hu, Zhen Lu, Xuepeng Wang, Yuanfei Nie
  • Patent number: 10645700
    Abstract: [Object] To further reduce a burden of scheduling in non-orthogonal multiple access. [Solution] Provided is an apparatus including: a selection unit configured to select a frequency band to which non-orthogonal multiple access is applied and at least one layer among a plurality of layers that are to be multiplexed in the frequency band for the non-orthogonal multiple access, as a band and a layer to be used for transmission to a terminal device; and a notification unit configured to notify the terminal device of the frequency band and the at least one layer.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: May 5, 2020
    Assignee: Sony Corporation
    Inventor: Ryota Kimura
  • Patent number: 10624103
    Abstract: A method of allocating resources in a first wireless system, wherein the first wireless system shares a frequency spectrum with a second wireless system, is described. The method comprises detecting a level of interference to the second wireless system caused by the first wireless system on a first frequency within the spectrum; determining if transmission on the first frequency should be restricted based on the level of interference; and restricting transmissions in the first system on the first frequency if it was determined that transmission on the first frequency should be restricted while allowing normal use of the remaining portions of the frequency spectrum to continue in the first system. A system for allocating resources in a first wireless system, wherein the first wireless system shares a frequency spectrum with a second wireless system, is also described.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: April 14, 2020
    Assignee: Federated Wireless, Inc.
    Inventors: Masoud Olfat, Kurt Schaubach
  • Patent number: 10594426
    Abstract: A method of a communication device arranged to operate in a cellular communication system is presented. The method comprises receiving a control symbol from a network node operating a cell of the cellular communication system and serving the communication device, determining interference situation for the control symbol, selecting an interference mitigation algorithm based on the determined interference, and performing the selected interference mitigation algorithm for the received control symbol. A communication device arranged to perform interference mitigation for received control symbols by the method, and a computer program for the communication device are also presented.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: March 17, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Fredrik Nordström, Maomao Chen
  • Patent number: 10572431
    Abstract: A data transmission circuit includes a data bus inversion encoding circuit configured to compare previous output data and current output data, invert or non-invert the current output data to control the number of data transitions; and transmitters configured to drive signal transmission lines based on outputs of the data bus inversion encoding circuit.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: February 25, 2020
    Assignee: SK hynix Inc.
    Inventors: Hae Kang Jung, Hong Joo Song
  • Patent number: 10523271
    Abstract: A method, system, and apparatus for calibration for cable modem (CM) echo cancellation (EC) training in full duplex (FDX) coaxial networks is provided. A CM receives a current resource block assignment message (RBA) from a cable modem termination system (CMTS), and determines if designated channels available for assignment as downstream (DS) channels or upstream (US) channels have changed assignment values from a previously received RBA, and if EC training has been performed on the designated channels for the current RBA. If the designated channels have changed assignment values and EC training has not been performed on the designated channels for the current RBA, the CM performs EC training on the designated channels for the current RBA.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: December 31, 2019
    Assignee: Futurewei Technologies, Inc.
    Inventors: Yanbin Sun, James Jeng Chen, Tao Ouyang
  • Patent number: 10505583
    Abstract: A digital subscriber line (DSL) network device for coupling to DSL communication lines, the network device comprising: multiplexing circuitry that transmits signals to vector-compliant consumer premises equipment (CPE) and legacy CPE via the DSL communication lines; and processing circuitry configured to: initiate transmission of a predetermined set of orthogonal pilot sequences to a plurality of vector-compliant CPEs; initiate transmission of data symbols corresponding to the set of orthogonal pilot sequences to one or more legacy CPEs; pre-process line errors of a victim vector-compliant CPE to remove far-end crosstalk due to the vector compliant disturber lines and perform the same pre-processing for the transmitted data symbols; determine far-end channel crosstalk information using a correlation of the pre-processed line errors and the pre-processed transmitted data symbols; and reduce far-end channel crosstalk of the victim vector-compliant CPE using the determined far-end channel crosstalk information.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: December 10, 2019
    Assignee: Futurewei Technologies, Inc.
    Inventors: Haixiang Liang, Yujie He, Jianping Tu
  • Patent number: 10411811
    Abstract: A system includes a transmitter with multiple transmit devices each having an OAM multiplexer that converts multiple input signals into an OAM beam. Each transmit device outputs a coaxial group of orthogonal OAM beams. The system also includes a receiver that has multiple receive devices each having an OAM demultiplexer that receives the group of OAM beams from a corresponding transmit device. The OAM demultiplexer also converts the coaxial group of mutually orthogonal OAM beams into a plurality of received signals corresponding to input signals represented by the OAM beams. The receiver also includes a MIMO processor that has an equalizer that determines a transfer function corresponding to crosstalk of each of the plurality of received signals. The MIMO processor also reduces the crosstalk of each of the plurality of received signals based on the transfer function and updates the transfer function.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: September 10, 2019
    Assignee: UNIVERSITY OF SOUTHERN CALIFORNIA
    Inventors: Alan E. Willner, Yongxiong Ren, Long Li, Guodong Xie, Yinwen Cao, Zhe Wang, Cong Liu, Asher J. Willner
  • Patent number: 10411818
    Abstract: A method for estimating a signal to interference and noise ratio of a communication link between a first node and a second node of a wireless communication network, the network comprising a number of further communication links between said first node and a number of further nodes. The method comprises, at the first node, providing first estimates of useful signal powers on all the links; providing second estimates of the signal powers on the link and on the further communication links on the basis of, jointly, the first estimate of the signal power on the link and the first estimates of the signal powers on the further links; estimating the signal to interference and noise ratio as a ratio between the second estimate of the signal power on the link and a power term comprising a sum of the second estimates of the signal powers on the further links.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: September 10, 2019
    Assignee: TELECOM ITALIA S.p.A.
    Inventors: Ivano Collotta, Roberto Fantini, Maurizio Fodrini, Bruno Melis
  • Patent number: 10404297
    Abstract: A system for interference mitigation including a transmit coupler that samples the RF transmit signal to create a sampled RF transmit signal; a transmit analog canceller that transforms the RF transmit signal to an RF interference cancellation signal, according to a first configuration state; a first receive coupler that combines the RF interference cancellation signal and the RF receive signal to generate a composite RF receive signal; a sampling analog interference filtering system that, in order to remove interference in the transmit band, filters the sampled RF transmit signal to generate a cleaned transmit signal; a first frequency downconverter that converts the transmit signal to a BB transmit signal; a second frequency downconverter that converts the composite RF receive signal to a composite BB receive signal; and an analog-to-digital converter that converts the transmit signal to a digital transmit signal.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: September 3, 2019
    Assignee: Kumu Networks, Inc.
    Inventors: Jung-Il Choi, Mayank Jain
  • Patent number: 10397335
    Abstract: Systems and methods for selecting tiering protocols based on data transmissions over mesh networks within defined spatial areas can be provided. A mesh network can be established within a defined spatial area. Each network device within the mesh network can be a user device or a supernode. Further, a wireless communication link can be established between the user devices and supernodes. A plurality of tiered protocols for tiering data transmissions can be accessed. Data to be transmitted over the mesh network can be analyzed to determine which tiered protocol to select. Path data that identifies a routing path from the a user device to a supernode can be generated, and the data can be transmitted according to the path data.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: August 27, 2019
    Assignee: Live Nation Entertainment, Inc.
    Inventors: Kenneth Ives-Halperin, Jeffrey Kelsey, Jon Flanders, Yen Hoang
  • Patent number: 10355905
    Abstract: A method and an apparatus for transmitting a reservation signal in a wireless communication system are provided. A device supporting long-term evolution in unlicensed spectrum (LTE-U) transmits the reservation signal, e.g. clear-to-send (CTS)-to-self, as a form of a Wi-Fi signal to a network.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: July 16, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Yunjung Yi, Hyangsun You, Byounghoon Kim
  • Patent number: 10312966
    Abstract: At least one example embodiment discloses a method including determining a first set of lines and a second set of lines in a system, obtaining signals to be transmitted over, or received from, the first set of lines and the second set of lines, obtaining normal operation interval (NOI) vectoring coefficients for the second set of lines, determining discontinuous operation interval (DOI) vectoring coefficients for the first set of lines, the DOI vectoring coefficients for the first set of lines and the NOI vectoring coefficients for the second set of lines being part of a vectoring matrix and jointly processing the signals for a discontinuous operation interval using the vectoring matrix.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: June 4, 2019
    Assignees: NOKIA OF AMERICA CORPORATION, ALCATEL LUCENT
    Inventors: Carl J. Nuzman, Paschalis Tsiaflakis
  • Patent number: 10305706
    Abstract: An apparatus for communication includes a transmission chain, an interference suppressor and a reception chain. The transmission chain is configured to transmit a transmitted signal. The interference suppressor is configured to produce suppression signals, by filtering reference signals drawn from the transmission chain. At least one of the reference signals is filtered in a frequency domain. The reception chain is configured to receive a signal distorted by at least an attenuated and delayed replica of the transmitted signal. The transmitted signal and the received signal are (i) synchronized in time and (ii) each includes one or more subcarriers selected from a common subcarrier-resource. The reception chain is further configured to process the received signal up to selected points, to subtract the suppression signals from the received signal at the selected points to produce an interference-suppressed signal, and to recover data carried in the received signal from the interference-suppressed signal.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: May 28, 2019
    Assignee: Capacicom Ltd.
    Inventors: Ariel Yagil, Naor Goldman, Avihay Sadeh, Ronen Mayrench, Daniel Wajcer
  • Patent number: 10264136
    Abstract: Methods and apparatus are disclosed for allocating resources in a Digital Subscriber Line network, the network comprising at least one lower-tier digital subscriber line carrying signals according to a first protocol between a transceiver device at a lower-tier network node and a subscriber transceiver device and further comprising at least one higher-tier digital subscriber line carrying signals according to a second protocol between a transceiver device at a higher-tier network node and a subscriber transceiver device, the first protocol permitting signals to be carried at frequencies in a range having a higher upper limit than the second protocol.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: April 16, 2019
    Assignee: BRITISH TELECOMMUNICATIONS public limited company
    Inventors: Trevor P Linney, Ian E Horsley
  • Patent number: 10244546
    Abstract: Some demonstrative embodiments include devices, systems and methods of communication by co-located wireless communication modules. For example, a device may be configured to receive a latency attribute indicating an allowed latency to transmit a packet using one or more shared resources shared between a plurality of wireless communication modules; receive a first priority level indicating a first transmission priority of the packet; increase the first priority level to a second priority level based on a comparison between the allowed latency and a time from reception of the latency attribute; and send the second priority level to an arbitration module, the second priority level to indicate to the arbitration module a second transmission priority to transmit the packet using the shared resources.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: March 26, 2019
    Assignee: INTEL IP CORPORATION
    Inventors: Ofer Hareuveni, Itzik Shahar, Xuemei Ouyang
  • Patent number: 10244409
    Abstract: To provide for higher data rates, a wireless back haul network for connecting small cell base stations to a core network can be implemented using full-duplex over single channel communications. The difficulty with full-duplex over single channel communications, and the reason why it has not become common place in wireless and mobile communication standards to date, is the significant interference that the receiver of a full-duplex communication device will generally experience from the full-duplex communication device's own transmitter transmitting over the same channel that the receiver is to receive signals. This interference is referred to as self-interference because the interference experienced by the receiver originates from its own paired transmitter. The present disclosure describes embodiments of an apparatus and method that provide sufficient self-interference cancellation in a compact and power efficient manner for a small cell wireless backhaul network.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: March 26, 2019
    Assignee: MAXLINEAR ASIA SINGAPORE PTE LTD
    Inventors: Eran Ridel, Ran Soffer, Uri Kanari, Evgeny Levitan, Idan Zalitzky, Yaniv Bar
  • Patent number: 10230425
    Abstract: A method for configuring transmission power spectral density (PSD) levels for a plurality of communication lines is described. A first set of configurations for the plurality of communication lines is determined based on a set of channel coefficients that indicates a crosstalk relationship and a set of noise coefficients that indicates background noise of each receiver. Each configuration of the first set indicates respective transmission PSD levels for transmitters associated with the plurality of communication lines. The respective transmission PSD levels are selected from a set of transmission PSD levels. A configuration is selected from the first set based on respective estimated transmission rates of the plurality of communication lines. Each transmission PSD level of a communication line indicated by the selected configuration corresponds to a transmission capacity of the communication line.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: March 12, 2019
    Assignee: Marvell International Ltd.
    Inventor: Feliciano Gomez Martinez
  • Patent number: 10211882
    Abstract: In one embodiment the method includes assigning a common frequency range over which first sets of carriers are configured for communication over respective ones of a plurality of subscriber lines. The plurality of subscriber lines are dispatched between a plurality of autonomous vectoring processors configured to mitigate crosstalk between subscriber lines coupled thereto, thereby organizing the plurality of subscriber lines into a plurality of distinct vectoring groups. The method includes assigning a plurality of additional disjoint frequency ranges to respective ones of the plurality of vectoring groups over which second sets of carriers are configured for enhanced communication over respective ones of the plurality of subscriber lines. The second sets of carriers are configured over the respective disjoint frequency ranges assigned to the respective vectoring groups which the respective subscriber lines belong to.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: February 19, 2019
    Assignee: ALCATEL LUCENT
    Inventors: Ruben Catteeuw, Geert Ysebaert, Geert Heyninck
  • Patent number: 10211893
    Abstract: Certain aspects of the present disclosure provide an apparatus for wireless communication. The apparatus may generally include a processing system configured to generate a frame comprising a first sequence and a conjugate of the first sequence; and an interface configured to output the frame for transmission to a wireless node, wherein the first sequence and the conjugate of the first known sequence are simultaneously transmitted via first and second transmit chains. The first sequence maybe known by the wireless node prior to the transmission.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: February 19, 2019
    Assignee: QUALCOMM Incorporated
    Inventor: Amichai Sanderovich
  • Patent number: 10181917
    Abstract: The present invention generally relates to wireless communication, more particularly, but not exclusively to, threshold determination for inter-network interference coordination and for inter-access node (AN) interference coordination. According to one aspect of the present invention there is provided a method for determining a threshold for inter-network interference coordination, on the basis of which it is determined whether radio resource shall be coordinated between a first wireless network and a second wireless network, the method comprising the steps of: receiving interference levels for a plurality of wireless links associated with one or more wireless communication devices within the first wireless network, said interference levels being attributed to the second wireless network; and obtaining the threshold based on the interference levels.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: January 15, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Cong Shi, Gen Li, Tim Irnich