Patents Examined by Syed Haider
  • Patent number: 10320597
    Abstract: There is provided a method and corresponding arrangements for scheduling users with different Guard Interval, GI, length for multi-user transmission in a wireless communication system, where each of the users is associated with a GI length. The proposed technology involves grouping at least a subset of the users into at least two groups according to GI length for transmission in allocated transmission opportunity, TXOP, resources. In this way, by dynamically scheduling at least part of the users for group-wise transmission according to GI length, the spectral efficiency can be improved. The proposed technology allows for higher scheduling flexibility when different users have different GI length requirements.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: June 11, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Meng Wang, Leif Wilhelmsson
  • Patent number: 10313034
    Abstract: The disclosed systems and methods for conducted massive MIMO array testing uses an efficient method of utilizing hardware resources for emulating signals from a massive MIMO base station transceiver to a MIMO mobile unit as dictated by a channel model; and also for emulating signals from a MIMO mobile unit to a massive MIMO BS transceiver, as dictated by a channel model. The system uses a phase matrix combiner to emulate the angular behavior of the propagation using virtual probes, combined with a radio channel emulator to create the temporal, multipath, and correlation behavior of the propagation. Using a phase matrix function increases the number of antenna elements that can be utilized in a massive MIMO array emulation while keeping the required number of fading channels within the radio channel emulator at a reduced number, thus forming a cost effective, yet realistic test system for massive MIMO testing.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: June 4, 2019
    Assignee: Spirent Communications, Inc.
    Inventors: Alfonso Rodriguez-Herrera, John Douglas Reed
  • Patent number: 10305526
    Abstract: In order to improve accuracy in estimating a transmission line that includes a delay path having a long delay time, the present invention provides a wireless reception device that includes a transmission estimation unit including: a delay profile generation unit that estimates a transmission line from a reference signal portion by using a known reference signal replica, and that calculates a delay profile from a transmission line estimation result; a path detection unit that detects a position of a sample, which is included in the delay profile, as a path position; a delay profile division unit that divides the delay profile based on the path position; and a transmission line calculation unit that calculates a transmission line per path by carrying out averaging to the delay profile per path in the frequency domain, and that combines transmission line calculation results per path.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: May 28, 2019
    Assignee: NEC CORPORATION
    Inventor: Shota Kubo
  • Patent number: 10305718
    Abstract: Methods and apparatuses for processing a signal that is transmitted with a reduced peak to average power ratio are described. The processing includes applying (1650) a first type of symbol constellation extension projection to at least one symbol in the constellation if it is determined that a type of constellation is a non-square constellation, the first type of symbol constellation extension projection having an outward angular region from an original position for the at least one symbol in the constellation, the outward angular region defined by a value for an angle between a first boundary and a second boundary for the outward angular region.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: May 28, 2019
    Assignee: INTERDIGITAL CE PATENT HOLDINGS
    Inventors: Loic Fontaine, Anthony Pesin
  • Patent number: 10305701
    Abstract: Systems and methods for detecting and estimating parameters for a phase-modulated signal in a continuous manner with near-optimal performance. The methods generate these estimates using streaming (or on-the-fly) calculations and so are suitable for hardware-based implementation. These estimates can be used as part of standard pulse descriptor words for radar and other pulsed or continuous signals that are reported by an electronic warfare receiver to a processing and display system. Also, the methods can be computed using sub-sampling methods in order to reduce overall computations.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: May 28, 2019
    Assignee: The Boeing Company
    Inventor: Gary A. Ray
  • Patent number: 10299201
    Abstract: Within many applications impulse radio based ultra-wideband (IR-UWB) transmission offers significant benefits for very short range high data rate communications when compared with existing standards and protocols. In many of these applications the main design goals are very low power consumption and very low complexity design for easy integration and cost reduction. Digitally programmable IR-UWB transmitters using an on-off keying modulation scheme on a 0.13 microns CMOS process operating on 1.2V supply and yielding power consumption as low as 0.9 mW at a 10 Mbps data rate with dynamic power control are enabled. The IR-UWB transmitters support new frequency hopping techniques providing more efficient spectrum usage and dynamic allocation of the spectrum when transmitting in highly congested frequency bands. Biphasic scrambling is also introduced for spectral line reduction.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: May 21, 2019
    Assignee: Transfert Plus, Societe en Commandite
    Inventors: Frederic Nabki, Dominic Deslandes, Alexandre Desmarais, Anhkiet Vuong, Anis Bounif, Wang Yu Hao, William Pham
  • Patent number: 10291452
    Abstract: A method for a base station processing in-band multiplexing using an FCP-OFDM scheme may comprise the steps of: transmitting, to a terminal, information on the length of zero padding (ZP) for a receiving side and the length of ZP for a transmitting side in a band for a first service among one or more services provided in one carrier; and on the basis of the information on the length of ZP for a receiving side and the length of ZP for a transmitting side, processing a signal of the first service in the transmitting end or receiving end of the base station.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: May 14, 2019
    Assignee: LG Electronics Inc.
    Inventors: Sangrim Lee, Hyunsoo Ko, Jaehoon Chung, Kwangseok Noh, Dongkyu Kim, Hojae Lee
  • Patent number: 10291441
    Abstract: A method for constructing a codebook in a multiple-antenna wireless communication system and an apparatus therefor are disclosed. Specifically, constructing a codebook in a multiple-antenna wireless communication system comprises the steps of: receiving parameters for constructing a codebook from a base station; and constructing a codebook using the parameters for constructing the codebook, wherein the parameters for constructing the codebook may include a phase value (?) of a first code vector forming the codebook, a phase difference (?) between code vectors that are adjacent to one another within the codebook, and the number of bits (?) that is required when feeding back a code vector selected thin the codebook.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: May 14, 2019
    Assignees: LG ELECTRONICS INC., SOGANG UNIVERSITY RESEARCH FOUNDATION
    Inventors: Jonghyun Park, Junyeub Suh, Wonjin Sung, Kijun Kim
  • Patent number: 10277335
    Abstract: There is provided a Through the Earth Emergency Radio (TER) method and apparatus for creating a communications link that can penetrate the earth or other thick, solid barriers. The communication link is used to connect mobile radios or other conventional wireless devices located below ground and on the surface. The through the earth communication link uses a multi-carrier modulation method that minimizes the impact of AC power line noise by locating each carrier between the harmonic frequencies of the AC power line noise.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: April 30, 2019
    Assignee: VITAL ALERT COMMUNICATION INC.
    Inventors: Michael James Roper, Peter Kwasniok, Vladimir Puzakov
  • Patent number: 10278032
    Abstract: A broadcast signal transmitter includes an encoder configured to perform outer encoding and inner encoding on Physical Layer Pipe (PLP) data, a time interleaver configured to interleave the PLP data on which the outer encoding and the inner encoding are performed, a framer configured to generate a signal frame comprising the interleaved PLP data, the signal frame comprising a preamble and at least one subframe, a frequency interleave configured to interleave data comprised in the generated signal frame, a pilot inserter configured to insert Scattered Pilots (SPs) into the signal frame comprising the interleaved data, and a modulator configured to modulate the SPs inserted signal frame by Orthogonal Frequency Division Multiplexing (OFDM) modulation scheme.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: April 30, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Jaehyung Kim, Woosuk Ko, Chulkyu Mun, Sungryong Hong
  • Patent number: 10268227
    Abstract: A transmission apparatus including: a branch circuit that branches a signal including first data and second data superimposed on the first data into two signals; a limiting amplifier that amplifies one signal in the two signals; a linear amplifier that amplifies another signal in the two signals; a first detector that detects the first data from the amplified one signal; and a second detector that detects the second data from the amplified another signal and the amplified one signal.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: April 23, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Goji Nakagawa, Setsuo Yoshida
  • Patent number: 10263736
    Abstract: A method and device for data transmission and detecting received signals are provided. The transmitting end adjusts each of a plurality of layers of data modulation symbols on each of time-frequency resources modulated by an initial modulation constellation diagram, according to a modulation constellation rotating factor corresponding to each of layers of data modulation symbols on each of the time-frequency resources; and the transmitting end transmits the plurality of layers of adjusted data modulation symbols superposed on each of time-frequency resources.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: April 16, 2019
    Assignee: China Academy of Telecommunications Technology
    Inventors: Shaoli Kang, Bin Ren, Hao Liu, Yang Song
  • Patent number: 10263671
    Abstract: A method for reporting channel status information (CSI) to a base station by a terminal in a wireless access system is disclosed in the present application. The method comprises the steps of: receiving information on one CSI process including a plurality of reference signal resources from the base station; receiving reference signals corresponding to the plurality of reference signal resources from the base station; selecting two or more reference signal resources among the plurality of reference signal resources on the basis of the received reference signals; and reporting the CSI corresponding to the one CSI process to the base station, wherein the CSI includes indicators indicating the two or more reference signal resources.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: April 16, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Hyungtae Kim, Jonghyun Park, Haewook Park
  • Patent number: 10257001
    Abstract: A switch interface board may include a first serializer/deserializer to communicate with a first group of packet processing components of a first chassis via a first port. The first chassis may house the switch interface board and the first group of packet processing components. The switch interface board may include a second serializer/deserializer to communicate with a second switch interface board of the first chassis via a second port. The second switch interface board may be connected to a second group of packet processing components of the first chassis. The second group of packet processing components may be different from the first group of packet processing components. The switch interface board may include a third port to communicate with a third switch interface board of a second chassis or a switching device of a cross-connect chassis.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: April 9, 2019
    Assignee: Juniper Networks, Inc.
    Inventors: Sek Wing Siu, Raghuraman Thirumalairajan, Vijit V. Nair
  • Patent number: 10243671
    Abstract: Techniques and circuits are proposed to increase averaging in the clock recovery band based on an amount of channel overlap in receivers using excess bandwidth for clock recovery, to mitigate the impact of spectral energy leaking into an active channel of interest from an adjacent active channel and to improve the accuracy of the phase estimate of the received transmitted clock.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: March 26, 2019
    Assignee: Ciena Corporation
    Inventors: Sadok Aouini, Bilal Riaz, Naim Ben-Hamida, Lukas Jakober, Ahmad Abdo
  • Patent number: 10237098
    Abstract: The present invention relates to a method for generating multi-level PRBS patterns for testing purposes, wherein the method includes the steps of providing a binary PRBS signal with a binary bit pattern sequence and mapping each bit of the binary bit pattern sequence to a symbol of a multilevel output.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: March 19, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventor: Marcel A. Kossel
  • Patent number: 10230394
    Abstract: A method for compressing IQ data for high speed transport link and an associated device. The method comprises: determining, based on dynamical statistical distribution of the IQ data, one or more parameters of a companding function for a nonlinear companding operation (S310); applying the companding function with the determined one or more parameters on the IQ data (S320); performing uniform quantization on the IQ data to generate compressed IQ data (S330); and transmitting the compressed IQ (S340). And a method for decompressing compressed IQ data for high speed transport link, and an associated device.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: March 12, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Ang Feng, Chen Wang, Jinsong Yang
  • Patent number: 10218545
    Abstract: A power line communication (PLC) device is provided which communicates with another PLC device via a PLC signal transmitted over a wire in a broadband. The PLC signal comprises at least one frame. The at least one frame comprises a preamble, a frame control header and a payload. The preamble comprises at least one synchronization symbols used for a PLC engine to synchronize; at least one preamble code symbols used for specifying at least one of a sub-channel and a modulation mechanism; and at least one channel estimation symbols used for the PLC engine to do channel estimation.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: February 26, 2019
    Assignee: Vangochip Technologies, Inc.
    Inventor: Jeng-Shiann Jiang
  • Patent number: 10218406
    Abstract: Methods, systems, and devices for wireless communication are described. Resources for narrowband communication in an unlicensed radio frequency spectrum band may be configured and allocated based on resource availability, regulatory constraints, and device capability or category. A narrowband wireless device, such as a machine type communication device or other relatively low complexity device, may communicate using one or more narrowband carriers, which may occupy between one tone and multiple resource blocks in an unlicensed spectrum band (e.g., any number of resources between one (1) tone and multiple resource blocks (RBs)). Different device types may thus be configured differently as they move between geographic regions. The base station may then communicate with the narrowband mobile device based on the resource allocation and the carrier configuration.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: February 26, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Chih-Hao Liu, Srinivas Yerramalli, Chirag Patel, Tamer Kadous, Hao Xu
  • Patent number: 10218341
    Abstract: Embodiments described herein provide a system having phase synchronized local oscillator paths. The system includes a first circuit, which in turn includes a first counter configured to generate a first counter output signal in response to a first clock signal controlling the first counter. The first circuit also includes a first phase-locked loop coupled to the first counter. The first phase-locked loop is configured to receive the first counter output signal as a first synchronization clock for the first phase-locked loop and to generate a first output signal having rising edges aligned according to the first counter output signal.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: February 26, 2019
    Assignee: Marvell World Trade Ltd.
    Inventors: Luns Tee, Wanghua Wu, Xiang Gao