Patents by Inventor Xiaogang Han

Xiaogang Han 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: 20170176272
    Abstract: The development of a stress-responsive colorimetric film that can memorize the stress it has experienced is disclosed. The system can use the plasmonic shift associated with the disassembly of one-dimensional plasmonic nanoparticle chains driven by the plastic deformation of the surrounding polymer matrix. By modifying the plasticity of the polymer, the plasmonic shift and colorimetric change can respond to a large range of stresses. The pressure indicating film can be used to capture and record the pressure distribution and magnitude between two contacting or impacting surfaces by outputting color information.
    Type: Application
    Filed: April 6, 2015
    Publication date: June 22, 2017
    Applicant: The Regents of The University of California
    Inventors: Yadong YIN, Xiaogang HAN, Yiding LIU
  • Publication number: 20170150367
    Abstract: A method of scheduling an unlicensed carrier, in which a base station transmits signaling of scheduling termination and/or signaling of scheduling update in a licensed carrier when determining that the signaling for indicating a scheduling termination and/or the signaling for indicating a scheduling update need to be transmitted; and the UE receives the signaling of scheduling termination and/or the signaling of scheduling update in the licensed carrier, and terminates data transmission in a starting scheduling resource location according to the signaling of scheduling termination, and/or transmits data in a new scheduling resource location according to the signaling of scheduling update. Also disclosed are a device and system of scheduling an unlicensed carrier and a computer storage medium.
    Type: Application
    Filed: October 20, 2014
    Publication date: May 25, 2017
    Applicant: ZTE CORPORATION
    Inventors: Xiaogang HAN, Shuqiang XIA, Wei GOU, Yajun ZHAO
  • Publication number: 20170142740
    Abstract: A resource obtaining method includes: obtaining a right to use an unlicensed carrier resource through a fallback operation in a contention time window; when the fallback operation in the contention time window succeeds, performing monitoring for a time length of T1; when it is found that the unlicensed carrier resource is idle through monitoring, determining that the obtaining of the right to use the unlicensed carrier resource succeeds. Also described are a station and a computer storage medium.
    Type: Application
    Filed: June 23, 2015
    Publication date: May 18, 2017
    Applicant: ZTE CORPORATION
    Inventors: Wei GOU, Xiaogang HAN, Focai PENG, Yajun ZHAO, Shuqiang XIA
  • Publication number: 20170140409
    Abstract: A computerized reward mechanism system is proposed which makes use both of presently collected data relating to the customer, and a database of historical data relating to the customer. Using this information, the system performs a customer preference analysis, which results in selecting rewards which are adapted to the customers' personal needs. In one form, the system is positioned at a shopping center, and includes cameras for recognising past customers by image processing. This may be done without requiring customers to participate in a process of signing up to use the system. The presently collected data include responses to questions put to the customer relating to his present shopping experience. Customer honesty is considered in the step of determining which rewards to offer the consumer, to encourage the consumers to express their feelings more clearly.
    Type: Application
    Filed: March 25, 2015
    Publication date: May 18, 2017
    Applicant: Nanyang Technological University
    Inventors: Siyuan LIU, Xiaogang HAN, Zhiqi SHEN, Chunyan MIAO
  • Publication number: 20170126365
    Abstract: The present document discloses a hybrid automatic repeat request process indication method, apparatus and system. Herein the method includes: a base station configuring a plurality of carriers for a user equipment, herein the a plurality of carriers include one or more unlicensed carriers; and for each unlicensed carrier, the base station indicating to the user equipment a carrier for transmitting an HARQ process of the unlicensed carrier.
    Type: Application
    Filed: September 19, 2014
    Publication date: May 4, 2017
    Inventors: Focai PENG, Shuqiang XIA, Wei GOU, Xiaogang HAN, Bo DAI, Cuihong HAN, Liujun HU, Junfeng ZHANG, Yajun ZHAO, Jun XU
  • Publication number: 20170026924
    Abstract: An air interface synchronization method and a system are disclosed in the present invention. The method includes: a base station in a target cell sends request information for intercepting to a center node, and the request information carries the information about a candidate source cell; the center node determines air interface synchronization interception relation, sends source cell determination information and location information of intercepted sub-frame of the RS to a base station in the source cell, and sends intercepted source cell determination information and location information of intercepted sub-frame to the base station in the target cell.
    Type: Application
    Filed: December 25, 2014
    Publication date: January 26, 2017
    Inventors: Wei Gou, Yajun Zhao, Xiaogang Han, Feng Xie
  • Publication number: 20170006564
    Abstract: Disclosed is a configuration method for implementing air interface synchronization including that: a network side determines the number of layers to which cells are divided in an Operation, Administration and Maintenance (OAM) manner or by a specified node, configures a monitoring subframe position for air interface synchronization to the cells of each determined layer, and sends or configures the number of layers and information of the monitoring subframe position configured for the cells of each layer; or, the network side determines a source cell configurable to be monitored by a local cell for air interface synchronization in the OAM manner, configures cell information corresponding to the source cell and configures the cell information to be the local cell; or, the specified node determines a source cell configurable to be monitored by a local cell for air interface synchronization, configures cell information corresponding to the source cell, and sends the cell information as the local cell.
    Type: Application
    Filed: December 10, 2014
    Publication date: January 5, 2017
    Inventors: Wei Gou, Huaming Wu, Yajun Zhao, YuNgok Li, Focai Peng, Xiaogang Han
  • Patent number: 9538524
    Abstract: Disclosed is a physical downlink shared channel transmission method, and the method includes: a network side determines transmission parameters of a Physical Downlink Shared Channel (PDSCH) according to a relevant transmission mode of a DM-RS and/or relevant information of a scheduled UE, wherein the transmission parameters include one or more of: a resource mapping approach of the PDSCH, a downlink DM-RS antenna port in use, and a Scrambling Code Identity (SCID) and a scrambling code initialized value X desired when a downlink DM-RS port sequence is initialized; and the network side transmits data according to the determined antenna parameters of the PDSCH. Further disclosed is a physical downlink shared channel transmission system. The disclosure can implement selection of DM-RS antenna ports and use multiple DM-RS antenna ports to improve transmission reliability, eliminate interference, increase MU-MIMO multiplexing capacity and improve frequency selective gain.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: January 3, 2017
    Assignee: ZTE Corporation
    Inventors: Xiaogang Han, Bo Dai, Wei Gou, Shuqiang Xia, Zhisong Zuo
  • Publication number: 20160337994
    Abstract: Disclosed is a method for implementing air interface synchronization. The method includes that: a source cell performs signalling interaction with a target cell, and determines whether to be switched off or not according to a signalling interaction result. A content about which the source cell performs signalling interaction with the target cell includes at least one of: on/off state information of the source cell, on/off state information of the target cell, whether the target cell finds a new synchronization source or not, timing at which the source cell enters an off state, candidate synchronization source cell set information of the target cell and associated affiliated target cell information of the target cell. The present disclosure further discloses a cell and system for implementing air interface synchronization.
    Type: Application
    Filed: December 10, 2014
    Publication date: November 17, 2016
    Inventors: Xiaogang Han, Wei Gou, Yajun Zhao, Feng Bi
  • Publication number: 20160329958
    Abstract: A method, device, and computer storage medium for air interface synchronization signaling processing are described in embodiments of the present invention. A cell obtains a location of a subframe used for air interface synchronization monitoring, and sends the air interfaces synchronization signaling of the cell at the location of the subframe, wherein the subframe used for air interface synchronization monitoring is a subframe of the cell. Other cells receive a reference signal used for air interface synchronization from the cell at the subframe.
    Type: Application
    Filed: October 30, 2014
    Publication date: November 10, 2016
    Inventors: Wei Gou, Xiaogang Han, Focai Peng, Yajun Zhao
  • Publication number: 20160227521
    Abstract: A method and system for PDSCH transmission and a network side device are provided. The method includes: a network side device determines a transmission parameter of a PDSCH according to information related to scheduled UE, the transmission parameter of the PDSCH including at least one of: a transmission manner of the PDSCH and a power ratio of a reference signal corresponding to the PDSCH to data corresponding to the reference signal (101), and the information related to the scheduled UE including at least one of: CSI reported by the UE, a TM of the UE, version and support capability information of the UE, type information of a serving cell where the PDSCH is located and type information of a subframe where the PDSCH is located; and the network side device performs resource mapping and sending according to the determined transmission parameter of the PDSCH (102).
    Type: Application
    Filed: July 1, 2014
    Publication date: August 4, 2016
    Inventors: Xiaogang Han, Bo Dai, Focai Peng
  • Publication number: 20160094327
    Abstract: Provided are methods for sending and receiving ACK/NACK information, a base station, and a terminal, wherein the method for sending ACK/NACK information includes that ACK/NACK information of a plurality of terminals is divided into X groups according to a preset indication parameter, wherein X is a positive integer greater than or equal to 1; joint coding is performed on ACK/NACK information corresponding to each group in the X groups, so as to obtain X first bit blocks; and the X first bit blocks are mapped to a predetermined ACK/NACK physical resource and sent. By means of the disclosure, reliable transmission of HARQ-ACK information of a terminal on an NCT is implemented, the reliability of transmission of UL data in a Low Cost terminal is improved, and problems such as a conflict of PHICH resource allocation and ICIC of a frequency domain in a small cell are solved.
    Type: Application
    Filed: December 20, 2013
    Publication date: March 31, 2016
    Inventors: Xiaogang HAN, Bo DAI, Shuqiang XIA, Wei GOU, Zhaohua LU, Zhisong ZUO
  • Publication number: 20160024909
    Abstract: Methods are provided for determining the location and height of a fracture in a subterranean formation using pulsed neutron capture (PNC) logging tools. The methods include obtaining a pre-fracture data set, hydraulically fracturing the formation with a slurry that includes a liquid and a proppant in which at least a portion of the proppant is tagged with a thermal neutron absorbing material, obtaining a post-fracture data set, comparing the pre-fracture data set and the post-fracture data set to determine the location of the proppant, and correlating the location of the proppant to a depth measurement of the borehole to determine the location and height of the propped fracture.
    Type: Application
    Filed: July 21, 2015
    Publication date: January 28, 2016
    Inventors: Xiaogang Han, Harry D. Smith, JR., Robert Duenckel, Qianmei (Jeremy) Zhang
  • Publication number: 20150278688
    Abstract: A remembrance agent is proposed, to be hosted on a wearable computer. The remembrance agent employs a first database (WK) of knowledge about the world in the form of concept maps. Events (“episodes”) experienced by a user are each classified as relating to one or more of the concepts in WK. The episodes are used to produce a second database (episodic memory, EM), and the classification is also used to update a third database (semantic memory, SM) organised using the concepts. The semantic memory thus summarizes the user's interaction with the concepts during the episodes. A current situation of the user is classified according to the concepts, and the classification is used, with the EM and SM, to provide to the user information relevant to the current situation.
    Type: Application
    Filed: March 25, 2015
    Publication date: October 1, 2015
    Applicant: NANYANG TECHNOLOGICAL UNIVERSITY
    Inventors: Chunyan MIAO, Xiaogang HAN, Zhiqi SHEN
  • Publication number: 20150223216
    Abstract: Disclosed is a physical downlink shared channel transmission method, and the method includes: a network side determines transmission parameters of a Physical Downlink Shared Channel (PDSCH) according to a relevant transmission mode of a DM-RS and/or relevant information of a scheduled UE, wherein the transmission parameters include one or more of: a resource mapping approach of the PDSCH, a downlink DM-RS antenna port in use, and a Scrambling Code Identity (SCID) and a scrambling code initialized value X desired when a downlink DM-RS port sequence is initialized; and the network side transmits data according to the determined antenna parameters of the PDSCH. Further disclosed is a physical downlink shared channel transmission system. The disclosure can implement selection of DM-RS antenna ports and use multiple DM-RS antenna ports to improve transmission reliability, eliminate interference, increase MU-MIMO multiplexing capacity and improve frequency selective gain.
    Type: Application
    Filed: August 22, 2013
    Publication date: August 6, 2015
    Inventors: Xiaogang Han, Bo Dai, Wei Gou, Shuqiang Xia, Zhisong Zuo
  • Patent number: 9038715
    Abstract: Methods are provided for identifying the location and height of induced subterranean formation fractures and the presence of any associated frac-pack or gravel pack material in the vicinity of the borehole using pulsed neutron capture (PNC) logging tools. The proppant/sand used in the fracturing and packing processes is tagged with a thermal neutron absorbing material. When proppant is present, increases in detected PNC formation and/or borehole component cross-sections, combined with decreases in measured count rates, are used to determine the location of the formation fractures and the presence and percent fill of pack material in the borehole region. Changes in measured formation cross-sections relative to changes in other PNC parameters provide a relative indication of the proppant in fractures compared to that in the borehole region.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: May 26, 2015
    Assignee: CARBO CERAMICS
    Inventors: Harry D. Smith, Jr., Xiaogang Han, Robert Duenckel
  • Publication number: 20150055632
    Abstract: A method for transmitting primary synchronization signals and secondary synchronization signals in new carriers is provided, which includes: with respect to a time domain, a base station side sending Primary Synchronization Signals (PSS) and Secondary Synchronization Signals (SSS) in Orthogonal Frequency Division Multiplexing (OFDM) symbols except OFDM symbols occupied by reference signals in subframes #1 and #6, or subframes #0 and #5, or subframes #1, #6, #0 and #5; and with respect to a frequency domain, the base station side sending the PSS or SSS in resources of intermediate 6 Physical Resource Block (PRB) pairs of system bandwidth; the reference signals include Demodulation Reference Signals (DMRS).
    Type: Application
    Filed: May 6, 2013
    Publication date: February 26, 2015
    Inventors: Wei Gou, Bo Dai, Xiaogang Han, Zhisong Zuo
  • Publication number: 20150004767
    Abstract: A method of forming nickel self-aligned silicide (Ni-salicide) is disclosed, the method including the following steps in the sequence set forth: providing a substrate; forming a gate on the substrate and forming a SiGe source and a SiGe drain beneath a surface of the substrate; growing a silicon epitaxial layer over the SiGe source and the SiGe drain; amorphizing the silicon epitaxial layer; depositing a Ni—Pt layer over the amorphized silicon epitaxial layer; performing a first rapid thermal anneal process to cause Ni—Pt alloy and the amorphized silicon epitaxial layer to react; removing the unreacted Ni—Pt alloy by wet etching; and performing a second rapid thermal anneal process to form a Ni-salicide.
    Type: Application
    Filed: December 5, 2013
    Publication date: January 1, 2015
    Applicant: SHANGHAI HUALI MICROELECTRONICS CORPORATION
    Inventors: Junsheng Cai, Xiangtao Kong, Xiaogang Han, ChienWei Chen, HsuSheng Chang
  • Publication number: 20130292109
    Abstract: Methods are provided for identifying the location and height of induced subterranean formation fractures and the presence of any associated frac-pack or gravel pack material in the vicinity of the borehole using pulsed neutron capture (PNC) logging tools. The proppant/sand used in the fracturing and packing processes is tagged with a thermal neutron absorbing material. When proppant is present, increases in detected PNC formation and/or borehole component cross-sections, combined with decreases in measured count rates, are used to determine the location of the formation fractures and the presence and percent fill of pack material in the borehole region. Changes in measured formation cross-sections relative to changes in other PNC parameters provide a relative indication of the proppant in fractures compared to that in the borehole region.
    Type: Application
    Filed: May 1, 2012
    Publication date: November 7, 2013
    Applicant: CARBO CERAMICS INC.
    Inventors: Harry D. Smith, JR., Xiaogang Han, Robert Duenckel
  • Patent number: 8476584
    Abstract: Disclosed is a method for estimating a density of an earth formation penetrated by a borehole. The method includes: emitting a pulse of fast neutrons into the formation during a neutron-pulse time interval; detecting gamma-rays due to inelastic scattering and thermal capture of the emitted neutrons in the formation to provide a gamma-ray energy spectrum due to the inelastic scattering and the thermal capture during a first time interval within the neutron-pulse time interval and to provide a time spectrum of counts or count rates due to thermal capture during a second time interval occurring after the neutron-pulse time interval; determining a macroscopic capture cross section of the formation from a decay in the time spectrum of counts or count rates; determining an elemental weight fraction from the gamma-ray energy spectrum; and estimating the density of the formation using the macroscopic capture cross section and the elemental weight fraction.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: July 2, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: Fusheng Li, Xiaogang Han