Patents by Inventor Feng Xue

Feng Xue has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20160380653
    Abstract: A polynomial kernel generator is configured to mitigate nonlinearity in a receiver path from a transmitter path comprising a nonlinear component in a communication device or system. The polynomial kernel generator operates to generate polynomial kernels that can be utilized to model the nonlinearity as a function of a piecewise polynomial approximation applied to a nonlinear function of the nonlinearity. The polynomial kernel generator generates kernels in a multiplier less architecture with polynomial computations in a log domain using a fixed number of adders.
    Type: Application
    Filed: June 25, 2015
    Publication date: December 29, 2016
    Inventors: Farhana Sheikh, Ching-En Lee, Shu-Ping Yeh, Feng Xue, Anuja Surendra Vaidya
  • Publication number: 20160381646
    Abstract: Examples are disclosed for a system to improve wireless spectral efficiency, including a processor, a memory coupled to the processor, a radio coupled to the processor component, one or more antennas coupled to the radio, wireless logic to be executed on the processor component to: process reception of a higher-power request to send (RTS) signal from an initiator by an initiator's receiver; process transmission of a higher-power clear to send (CTS) signal to the initiator, to set a lower-power transmit opportunity (TXOP); and process reception of an invitation to share the TXOP at lower power, the invitation comprising an indication that devices that receive the invitation should transmit at lower power during a time period indicated by the higher-power CTS signal; and a timer to track progress of the time period.
    Type: Application
    Filed: December 21, 2013
    Publication date: December 29, 2016
    Inventors: Qinghua LI, Xintian E. LIN, Yu ZHOU, Hunjun YIN, Xianchao XU, Honggang LI, Wendy C. WONG, Feng XUE, Rongzhen YANG
  • Publication number: 20160380661
    Abstract: A data processing system may include a transmit circuit configured to transmit a first signal sequence comprising one or more signals, a receive circuit configured to transmit a second signal sequence comprising one or more additional signals, wherein one or more signals of the second signal sequence comprise an interference component related to the first signal sequence, and a processing circuit.
    Type: Application
    Filed: June 26, 2015
    Publication date: December 29, 2016
    Inventors: Feng Xue, Yang-Seok Choi, Shu-Ping Yeh, Shilpa Talwar
  • Publication number: 20160380666
    Abstract: A method of processing signals may include calculating a covariance matrix and a correlation vector based on an input signal vector and an output signal vector; identifying a plurality of critical elements of a parameter vector based on a predefined criteria, wherein the parameter vector describes a relationship between the input signal vector and the output signal vector; calculating a solution to a linear system to generate a reduced parameter update vector having a plurality of elements, wherein the linear system is based on the plurality of critical elements of the parameter vector, the covariance matrix, and the correlation vector; updating the plurality of critical elements of the parameter vector using the reduced parameter update vector to generate an updated parameter vector, wherein the reduced parameter update vector has less elements than the parameter vector; and processing one or more signals associated with the input signal vector using the updated parameter vector.
    Type: Application
    Filed: June 26, 2015
    Publication date: December 29, 2016
    Inventors: Feng Xue, Yang-Seok Choi, Shu-Ping Yeh, Shilpa Talwar, Roya Doostnejad
  • Patent number: 9491155
    Abstract: Techniques are described for using a credential, such as a user identifier associated with an account on a first service, to create a reusable account on a second service. The account may be initially activated based on the receipt of a passcode sent to the account on the first service. The account may be created with access to a subset of features on the second service. On receiving a password for the account, the account may be modified to access a broader feature set. The account may be reusable via a cookie or other token placed on a user device, and reusability may be disabled on detecting possible security risk conditions associated with the user identifier.
    Type: Grant
    Filed: August 13, 2014
    Date of Patent: November 8, 2016
    Assignee: Amazon Technologies, Inc.
    Inventors: Jesper Mikael Johansson, Cheng Hung Hui, Gang Liu, Feng Xue
  • Publication number: 20160319513
    Abstract: A multifunctional all-terrain walking-type hydraulic excavator includes a multifunctional working apparatus (2), a cab (3), a slew assembly (4), a slewing bearing (6), and a walking-type chassis (5). By means of a hydraulic capstan (5.9) arranged at the forward end of the chassis (5), the excavator is able to perform self-rescue and towing assistance. The walking-type chassis (5) adapts to terrain through adjustments of the swing angles of the forward and rear legs (5.2, 5.4, 5.5, 5.6) and thus is able to walk and operate in difficult terrain.
    Type: Application
    Filed: July 11, 2016
    Publication date: November 3, 2016
    Inventors: XIUFENG CHEN, XIAOMING SHI, FENG XUE, JINGKE XU, YUN ZHANG, CHENGPENG GU, JUNQI WU, YONG CAO, RAN GAO, JIE ZHANG, LIPING ZHANG, FUDE WANG, LEI LIU, YUXIANG LIU, YUMING WEI, KAI ZHU, XUEFENG WEI, ZHIHAN PENG, LIANFENG DING, JING HAN, JING LIU
  • Patent number: 9461727
    Abstract: Technology to adaptively sectorize a spatial region for parallel multi-user transmissions is disclosed. In an example, a node (e.g., evolved Node B (eNB)) can include computer circuitry configured to: Generate a set of precoding matrices for a set of beam cones in the spatial region; and generate a beam cone for multi-user beamforming transmissions using system information for the beam cone. A precoding matrix in the set of precoding matrices can be used for each beam cone, and each beam cone can cover a beam cone spatial region that differs from another beam cone spatial region of another beam cone in the spatial region. Each beam cone can include system information that differs from the system information of the other beam cones in the spatial region.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: October 4, 2016
    Assignee: INTEL CORPORATION
    Inventors: Feng Xue, Qinghua Li, Masoud Sajadieh, Jong-Kae Fwu
  • Patent number: 9451604
    Abstract: Described are methods and devices for enabling D2D communications with signal structures that require minimal changes to the current LTE architecture. In the embodiments described, the eNB grants resources to UEs for D2D communication and either initiates or permits a pair of UEs to establish a D2D link. Certain embodiments are designed to minimize changes to the current LTE control signaling structure by having the control signaling always come from the eNB as in a normal cellular link so that the transmitting UE transmits over a data channel (e.g., PUSCH/PDSCH) that the receiving UE is able to decode.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: September 20, 2016
    Assignee: Intel Corporation
    Inventors: Feng Xue, Qinghua Li, Huaning Niu, Jong-Kae Fwu
  • Patent number: 9451545
    Abstract: Embodiments may comprise logic to determine whether a value of a network allocation vector indicates that the apparatus is blocked from transmitting on the medium; logic to transmit a first clear to send packet at a first power level in response to determining that the apparatus is not blocked from transmitting on the medium, the first clear to send packet comprising a flag or bit to indicate the Shading Transmission Starts (STS); logic to receive a second clear to send packet after transmitting the first clear to send packet; and logic to transmit a first data transmission at a second power level after receiving the second clear to send packet, the second power level being less than the first power level.
    Type: Grant
    Filed: December 27, 2014
    Date of Patent: September 20, 2016
    Assignee: Intel Corporation
    Inventors: Feng Xue, Qinghua Li, Wendy C. Wong
  • Publication number: 20160191135
    Abstract: Machine-readable media, methods, apparatus and system for electrical downtilt adjustment in a multiple input multiple output system are disclosed. In some embodiments, an apparatus may comprise an electrical downtilt module to determine an electrical downtilt angle for an antenna port selected from a number of antenna ports based on information from an user equipment (UE); and a codebook module to select a codeword corresponding to the antenna port from a codebook and calculate a weight of an antenna array of the eNB through inputting the electronic downtilt angle into the codeword, wherein the codebook has a first number of codewords, each of the codewords having a second number of elements to represent the weight of the antenna array, and wherein each of the codewords corresponds to each of the antenna ports and each of the elements corresponds to each antenna of the antenna array.
    Type: Application
    Filed: June 27, 2014
    Publication date: June 30, 2016
    Inventors: Xiaogang CHEN, Yuan ZHU, Feng XUE, Hooman SHIRANI-MEHR, Qinghua LI
  • Publication number: 20160183100
    Abstract: A method for self-interference cancellation in a wireless communication device. The wireless communication device has an estimator, a transmitter and a cancellation device. The estimator is configured to estimate a known signal received from a second wireless communication device when the second wireless communication device is utilized less than a predetermined threshold. The transmitter is configured to transmit within a coherence time of the estimated known signal, a predetermined signal. The cancellation device is configured to cancel the estimated known signal from a received signal.
    Type: Application
    Filed: December 19, 2014
    Publication date: June 23, 2016
    Inventors: Feng Xue, Yang-Seok Choi, Shilpa Talwar, Roya Doostnejad
  • Publication number: 20160182104
    Abstract: A method and system for interference cancellation in a wireless communication device. The wireless communication device can include an interference estimator configured to generate one or more filter weights based on a transmit signal. The one or more filter weights can be generated based on one or more kernels generated by the interference estimator. The interference estimator can be configured to perform recursive linear square (RLS) estimations based on the one or more kernels. The RLS estimations can include one or more independent RLS estimations, one or more parallel RLS estimations and/or one or more cascade RLS estimations. The interference estimator can be configured to perform one or more orthogonally transform one or more kernels.
    Type: Application
    Filed: December 23, 2014
    Publication date: June 23, 2016
    Inventors: Feng Xue, Yang-Seok Choi, Shilpa Talwar
  • Publication number: 20160173165
    Abstract: Disclosed are a method, computing device, and a non-transitory computer-readable medium storing computer-executable instructions which, when executed, cause a processor to perform operations, which may include: sending a transmit signal including non-linear elements; receiving another signal comprising at least a portion of the transmit signal through a receive chain of a computing device; simulating the transmit chain; generating, by the simulated transmit chain, a first signal associated with the transmit signal; generating a second signal by frequency shifting the first signal; generating one or more first kernels associated with the second signal; performing decimation of the one or more first kernels; transforming the one or more first kernels using a lower triangular matrix, into one or more second kernels; combining the one or more second kernels to generate an echo cancellation signal; and subtracting the echo cancellation signal from the received at least a portion of the transmit signal.
    Type: Application
    Filed: June 26, 2015
    Publication date: June 16, 2016
    Inventors: YANG-SEOK CHOI, FENG XUE, SHU-PING YEH, SHILPA TALWAR
  • Publication number: 20160095090
    Abstract: Systems and methods to encode and/or decode structured super-position coding to enhance control channel capacity are disclosed herein. User equipment (UE) may be configured to communicatively couple to an Evolved Universal Terrestrial Radio Access Network (E-UTRAN) Node B (eNB). A first UE and a second UE may be coupled to the eNB. Basic PDCCH may be sent to the second UE, and extra PDCCH may be sent to the first UE on the same time-frequency resource. The second UE may be able to decode the basic PDCCH as it normally does. The first UE may be able to decode the basic PDCCH for the second UE, cancel the basic PDCCH from the signal, and decode the extra PDCCH. The extra PDCCH may be restricted to certain positions relative to the basic PDCCH to simplify searching by the first UE.
    Type: Application
    Filed: September 26, 2014
    Publication date: March 31, 2016
    Inventors: Feng Xue, Jong-Kae Fwu, Hwan-Joon Kwon
  • Publication number: 20160088648
    Abstract: A technology that is operable to schedule data transfer for a multiple user multiple-input and multiple-output (MU-MIMO) communications network is disclosed. In one embodiment, an enhanced node B (eNode B) is configured with circuitry configured to receive a sounding signal from each of a plurality of user equipment (UEs). One or more major paths of the sounding signals from each of the plurality of UEs are determined. An angle of arrival (AoA) is determined that is associated with each of the one or more major paths. The plurality of UEs are grouped into one or more candidate MU-MIMO sets using the AoAs associated with each of the one or more major paths. Data transmissions are scheduled for one or more of the candidate UEs of the candidate MU-MIMO set on one or more of the major paths of each of the candidate UEs.
    Type: Application
    Filed: September 24, 2014
    Publication date: March 24, 2016
    Inventors: Feng Xue, Yuan Zhu, Hooman Shirani-Mehr, Roya Doostnejad, Qinghua Li, Masoud Sajadieh
  • Publication number: 20160088573
    Abstract: Embodiments described herein relate generally to a communication between a user equipment (“UE”) and an evolved Node B (“eNB”). A UE may be adapted to signal to an eNB a request to adjust a downlink transmission power level. Based on the request, the eNB may adjust its downlink transmission power level. In another embodiment, an eNB may be adapted to adjust its downlink transmission power level according to a pseudorandom sequence. This pseudorandom sequence may be generated from a seed, which the eNB may signal to a UE. Based on power adjustments and/or randomizations, a UE may perform interference cancellation. Other embodiments may be described and/or claimed.
    Type: Application
    Filed: September 24, 2014
    Publication date: March 24, 2016
    Inventors: Feng Xue, Jong-Kae Fwu, Alexei Davydov
  • Publication number: 20160080051
    Abstract: A hybrid digital and analog beamforming device for a node operable with an antenna array is disclosed. In an example, the hybrid digital and analog beamforming device can include computer circuitry configured to: Segment antenna elements of an antenna array into at least two groups of antenna elements; map antenna ports for transmission chains to one group of the antenna elements; constrain digital precoding weights for a digital precoder for the antenna elements, where the digital precoding weight in dudes a digital phase and amplitude; and determine analog precoding weights for an analog precoder for the antenna elements, where the analog precoding weight includes an analog phase.
    Type: Application
    Filed: December 12, 2013
    Publication date: March 17, 2016
    Inventors: Masoud SAJADIEH, Hooman SHIRANI-MEHR, Feng XUE, Qinghua LI
  • Patent number: 9286585
    Abstract: A method for determining quality includes receiving supplier quality data from a supplier. The supplier quality data includes discrete quality data. The supplier quality data is for a quantity of a component supplied to a company or for a service provided on behalf of the company over a supplier measurement period. The method includes aggregating quality data from two or more suppliers. The quality data is for the supplied component or provided service over a baseline time period. The method includes determining a quality benchmark using the aggregated quality data and setting one or more alarm levels. The alarm levels are based on the quality benchmark of the aggregated quality data. The method includes determining supplier quality level for the supplier for the supplier measurement time period. The supplier quality is based on the supplier quality data. The method includes determining if the supplier quality data exceeds an alarm level.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: March 15, 2016
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Robert A DiMarco, Vincent J Giancaspro, Michael J Whitney, Feng Xue, Jung H Yoon
  • Publication number: 20160062356
    Abstract: A vehicle control system includes a transceiver and a control unit. The transceiver is configured to communicate with plural vehicles, to receive operational parameter values from the plural vehicles. The operational parameter values are generated by sensors on board the vehicles and relate to operation of the vehicles during movement of the vehicles along one or more routes. The control unit is configured to generate respective vehicle operational assessments of the vehicles based on the received operational parameter values. The vehicle operational assessments are representative of respective states of operational readiness of the vehicles. The control unit is further configured to generate control signals, relating to control of the vehicles for operation along the one or more designated routes, based on the operational assessments. The control signals are configured to control at least one device, either on board or off board the vehicles.
    Type: Application
    Filed: November 9, 2015
    Publication date: March 3, 2016
    Inventors: Bret Dwayne Worden, Nicholas Edward Roddy, Feng Xue, Dustin Garvey
  • Patent number: 9270425
    Abstract: A method includes receiving at user equipment an indication of a subset of scheduling constraints for interference mitigation and cancelation and performing interference mitigation and cancelation utilizing the subset of scheduling constraints.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: February 23, 2016
    Assignee: Intel IP Corporation
    Inventors: Feng Xue, Jong-Kae Fwu, Alexei Vladimirovich Davydov