Patents by Inventor Xiaohan Wang

Xiaohan Wang 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: 20210168775
    Abstract: Methods, systems, and apparatus for downlink control information (DCI) detection are provided. In one aspect, a DCI detection method includes: receiving a configuration parameter that is used to configure at least one or more groups of candidate resources, each of the one or more groups of candidate resources carrying one piece of DCI, and in response to determining that one corresponding piece of DCI is blindly detected from one of the one or more groups of candidate resources, stopping the blind detection on the one of the one or more groups of candidate resources.
    Type: Application
    Filed: February 10, 2021
    Publication date: June 3, 2021
    Inventors: Haicun HANG, Shibin GE, Xiaohan WANG, Xiaoyan BI
  • Publication number: 20210167835
    Abstract: A precoding matrix indicating and determining method, including determining a precoding matrix indicator (PMI) having R groups of space-frequency information corresponding to R transmission layers, where the R groups of space-frequency information are used to determine a precoding matrix of each subband, and an rth group of space-frequency information in the R groups indicates P×L space domain vectors corresponding to an rth transmission layer in the R transmission layers, K frequency domain vectors corresponding to the rth transmission layer, and P×L×K coefficients corresponding to the rth transmission layer, where each of the P×L×K coefficients indicates a linear superposition coefficient of a vector operation result of a P×L space domain vectors and one of the K frequency domain vectors, R is a quantity of transmission layers, P is a quantity of polarization directions, and R, r, P, L, and K are all positive integers, and sending the PMI.
    Type: Application
    Filed: February 9, 2021
    Publication date: June 3, 2021
    Inventors: Xiaohan Wang, Huangping Jin, Xiaoyan Bi
  • Publication number: 20210153188
    Abstract: This application discloses a communications method and apparatus. The method includes: receiving, by a terminal device, PUCCH resource configuration indication information from a network device, where the PUCCH resource configuration indication information is associated with one or more of the following parameters: a downlink channel resource parameter, a demodulation reference signal port-related parameter, and a transport block parameter. A corresponding apparatus is further disclosed. According to the solution in this application, the PUCCH resource configuration indication information is associated with one or more parameters of the downlink channel resource, the demodulation reference signal port-related parameter, and the transport block parameter. When the terminal device sends uplink control information by using a PUCCH resource, a PUCCH resource conflict can be avoided, thereby ensuring transmission reliability.
    Type: Application
    Filed: January 29, 2021
    Publication date: May 20, 2021
    Inventors: Xiaohan WANG, Shibin GE, Haicun HANG, Xiaoyan BI, Min ZHANG, Hua XU
  • Publication number: 20210119836
    Abstract: A data scrambling method and a related device are provided. In the data scrambling method, a communications device may configure one scrambling identifier associated with downlink control information configuration information or a downlink control parameter, or a plurality of scrambling identifiers associated with different downlink control information configuration information or downlink control parameters, where the downlink control information configuration information is parameter information used to obtain a downlink control channel, and the downlink control parameter is a parameter included in downlink control information or a parameter related to a parameter included in downlink control information; and the communications device may send the one scrambling identifier or the plurality of scrambling identifiers to a terminal device.
    Type: Application
    Filed: December 29, 2020
    Publication date: April 22, 2021
    Inventors: Shibin GE, Xiaoyan BI, Min ZHANG, Xiaohan WANG, Haicun HANG
  • Publication number: 20210058119
    Abstract: This application discloses a channel estimation method and apparatus, and relates to the field of communications technologies, to help reduce indication overheads. The method may include: generating and sending indication information. The indication information is used to indicate K N-dimensional spatial-domain component vectors, L M-dimensional frequency-domain component vectors, and a weight matrix, to indicate to construct an M×N-dimensional spatial-frequency matrix, or an M×N or N×M spatial-frequency matrix.
    Type: Application
    Filed: November 10, 2020
    Publication date: February 25, 2021
    Inventors: Xiaohan WANG, Huangping JIN, Xiaoyan BI
  • Publication number: 20200374992
    Abstract: The disclosure relates to 433 MHz solid state microwave heating cavity and industrial defrosting system. The 433 MHz solid state microwave heating cavity and industrial defrosting system includes a sample conveying device, a metal detector, a microwave processing system, and a motor, provided on a machine frame. An upper part and a bottom part of a microwave processing module are provided with a microwave source separately. Microwave sources are connected to bell mouths through wave guide tubes. Two bell mouths are connected to a heating cavity through microwave windows. The microwave source is a 433 MHz solid-state microwave source. The high-power-density 433 MHz microwave is used to penetrate meat products to make a uniform temperature inside and outside after defrosting, the defrosting takes only 2-4 minutes from ?18° C. to ?2° C., color and nutrients of the meat products after the defrosting are basically the same as those of fresh meat.
    Type: Application
    Filed: May 20, 2020
    Publication date: November 26, 2020
    Inventors: Changhu XUE, Qianqian XUE, Yunqi WEN, Rui JIANG, Ruxue JIANG, Huanhuan CUI, Bingxue JIANG, Xiaohan WANG, Xiao KE, Xin DU, Xiaoming JIANG
  • Publication number: 20200367272
    Abstract: A transmission control method includes: receiving N pieces of transmission control information; and generating, based on the N pieces of transmission control information, transmission feedback information corresponding to transport blocks respectively scheduled by using the N pieces of transmission control information. Transport blocks can be accurately distinguished based on different effective transmission parameter group fields, and an effective feedback is provided.
    Type: Application
    Filed: August 5, 2020
    Publication date: November 19, 2020
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Shibin GE, Xiaohan WANG, Yong LIU, Huangping JIN, Xiaoyan BI
  • Publication number: 20200358490
    Abstract: Embodiments of this application disclose a channel estimation method and apparatus, and relate to the field of communications technologies, to help reduce indication overheads. The method may include: generating and sending indication information, where the indication information is used to indicate M N-dimensional precoding vectors, each precoding vector is applied to one of M frequency bands, the M N-dimensional precoding vectors form a space-frequency matrix, and the space-frequency matrix is generated by performing weighted combination on a plurality of space-frequency component matrices, where the space-frequency matrix is an M×N-dimensional space-frequency vector or an X×Y space-frequency matrix, X and Y are one and the other of M and N, M?1, N?2, and both M and N are integers.
    Type: Application
    Filed: July 24, 2020
    Publication date: November 12, 2020
    Inventors: Xiaohan WANG, Huangping JIN, Xiang REN, Wei HAN, Xiaoyan BI
  • Publication number: 20200204306
    Abstract: A data transmission method between a plurality of transmit end devices and a receive end device includes receiving at least one piece of transmission control information. The at least one piece of transmission control information includes transmission control information received by the receive end device from at least one of the plurality of transmit end devices, and transmission control information from each of the plurality of transmit end devices includes a retransmission process identifier. The transmission control information controls data transmission between transmit and receive end devices. The method also includes for each of the at least one piece of transmission control information, determining the transmit end device configured to send the piece of transmission control information, and performing a retransmission control operation on the data transmission received by the receive end device.
    Type: Application
    Filed: March 5, 2020
    Publication date: June 25, 2020
    Inventors: Xiaohan WANG, Haicun HANG, Ye WU
  • Publication number: 20190318931
    Abstract: Methods of self-aligned multiple patterning and structures formed by self-aligned multiple patterning. A mandrel line is patterned from a first mandrel layer disposed on a hardmask and a second mandrel layer disposed over the first mandrel layer. A first section of the second mandrel layer of the mandrel line is removed to expose a first section of the first mandrel layer. The first section of the first mandrel layer is masked, and the second sections of the second mandrel layer and the underlying second portions of the first mandrel layer are removed to expose first portions of the hardmask. The first portions of the hardmask are then removed with an etching process to form a trench in the hardmask. A second portion of the hardmask is masked by the first portion of the first mandrel layer during the etching process to form a cut in the trench.
    Type: Application
    Filed: April 11, 2018
    Publication date: October 17, 2019
    Inventors: Jiehui Shu, Xiaohan Wang, Qiang Fang, Zhiguo Sun, Jinping Liu, Hui Zang
  • Patent number: 10446395
    Abstract: Methods of self-aligned multiple patterning and structures formed by self-aligned multiple patterning. A mandrel line is patterned from a first mandrel layer disposed on a hardmask and a second mandrel layer disposed over the first mandrel layer. A first section of the second mandrel layer of the mandrel line is removed to expose a first section of the first mandrel layer. The first section of the first mandrel layer is masked, and the second sections of the second mandrel layer and the underlying second portions of the first mandrel layer are removed to expose first portions of the hardmask. The first portions of the hardmask are then removed with an etching process to form a trench in the hardmask. A second portion of the hardmask is masked by the first portion of the first mandrel layer during the etching process to form a cut in the trench.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: October 15, 2019
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Jiehui Shu, Xiaohan Wang, Qiang Fang, Zhiguo Sun, Jinping Liu, Hui Zang
  • Patent number: 10192780
    Abstract: Methods of self-aligned double patterning and improved interconnect structures formed by self-aligned double patterning. A mandrel line including an upper layer and a lower layer is formed over a hardmask. A non-mandrel cut block is formed over a portion of a non-mandrel line, after which the upper layer of the mandrel line is removed. An etch mask is formed over a first section of the lower layer of the mandrel line defining a mandrel cut block over a first portion of the hardmask. The first section of the lower layer is arranged between adjacent second sections of the lower layer. The second sections of the lower layer of the mandrel line are removed to expose respective second portions of the hardmask, and the second portions of the hardmask are removed to form a trench. The mandrel cut block masks the first portion of the hardmask during the etching process.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: January 29, 2019
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Xiaohan Wang, Jiehui Shu, Brendan O'Brien, Terry A. Spooner, Jinping Liu, Ravi Prakash Srivastava
  • Patent number: 9554174
    Abstract: A technique for post-processing media content on a network by a GPU cloud computing system is provided. The system includes a plurality of computer systems providing a content submission connection for uploading the media content. The system includes a processor configured to receive descriptive information related to the media content via the network, receive the media content via the content submission connection which has a quicker uploading bandwidth than the network, process the media content; and distribute processed media content via the network that is separated from the content submission connection. The system further includes a distributed GPU cloud computing platform to perform parallel post-processing of the media content, and an immersive 3D interface.
    Type: Grant
    Filed: October 11, 2015
    Date of Patent: January 24, 2017
    Inventors: Janos Redei, Xiaohan Wang
  • Publication number: 20160073150
    Abstract: A technique for post-processing media content on a network by a GPU cloud computing system is provided. The system includes a plurality of computer systems providing a content submission connection for uploading the media content. The system includes a processor configured to receive descriptive information related to the media content via the network, receive the media content via the content submission connection which has a quicker uploading bandwidth than the network, process the media content; and distribute processed media content via the network that is separated from the content submission connection. The system further includes a distributed GPU cloud computing platform to perform parallel post-processing of the media content, and an immersive 3D interface.
    Type: Application
    Filed: October 11, 2015
    Publication date: March 10, 2016
    Inventors: Janos Redei, Xiaohan Wang
  • Patent number: 9191625
    Abstract: A technique for distributing high-quality, user-generated high definition (HD) video content on the web is presented. A system according to the technique may include a service provider including a user database, a catalog database, and a media library. The service provider may receive the HD video content from a user through a content submission method. A method according to the technique receives registration information for the HD video content to be shared and receives the HD video content from a user through a content submission method. The HD video content may then be further processed, such as transcoding to a streamable format using a massively parallel cloud computing platform.
    Type: Grant
    Filed: September 26, 2009
    Date of Patent: November 17, 2015
    Inventors: Janos Redei, Xiaohan Wang
  • Publication number: 20150027656
    Abstract: A method for preparing low-cost clean steel includes steps of: preliminarily desulfurizing iron melt: preliminarily desulfurizing in an iron melt channel during blast furnace tapping and during iron folding in an iron folding room, adding a desulfurizing ball into the iron melt during the blast furnace tapping or the iron folding; dephosphorizing and controlling sulfur: dephosphorizing and controlling sulfur during converter steelmaking, in such a manner that P?0.014% and S?0.004% during tapping; rapidly dephosphorizing by slag-forming: rapidly dephosphorizing by slag-forming during converter tapping, at a converter end point, controlling a C content at 0.02˜0.10%, adding a dephosphorizing ball through an alloy chute during the converter tapping, blowing argon and stirring at the same time; purifying steel melt during RH refining: adding a purifying ball at a late stage of the RH refining when a vacuum degree is at 66.7˜500 Pa; and continuously casting with whole-process protection.
    Type: Application
    Filed: March 13, 2012
    Publication date: January 29, 2015
    Inventors: Fuping Tang, Zhen Li, Xiaofeng Wang, Peng Fei, Jinsong Meng, Yue Zhang, Yong Ma, Wenzhong Wang, Zhiwen Zhang, Xiaohan Wang, Meng Guo, Zhigang Zhao, Yang Lin, Guoqiang Xin, Weizhi Yao
  • Patent number: 7999949
    Abstract: The present invention discloses an optical measurement and/or inspection device that, in one application, may be used for inspection of semiconductor devices. A method is disclosed for extracting information of a device-under-test for an ellipsometer, comprising the steps: providing a plurality of incoming polarized beams using a plurality of polarizers, where each of the beams being polarized at a designated polarizing angle; using a parabolic reflector to focus said plurality of incoming polarized beams on a spot on a DUT; using a parabolic reflector to collect a plurality of beams reflected from said DUT; and analyzing said collected beams using a plurality of analyzers, wherein each of the analyzers having a designated polarizing angle with respect to its respective polarizer.
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: August 16, 2011
    Assignee: Raintree Scientific Instruments (Shanghai) Corporation
    Inventors: Tongxin Lu, Xiaohan Wang
  • Publication number: 20100118308
    Abstract: The present invention is an optical system, comprising: a light source for providing light rays; a combined two or more parabolic reflectors or elliptical reflectors having inner reflecting surfaces, wherein the reflectors sharing a common focal point, and a device-under-test is disposed thereabout the focal point; wherein the collimated light rays coming into the parabolic reflector parallel to the axis of symmetry of each parabolic reflector would be directed to the focal point on the surface of the device-under-test. The reflected light rays from the device-under-test are directed by the other parabolic reflectors along the axes of symmetry of each parabolic reflector and generate information indicative of the device-under-test; wherein the reflected light rays exit the reflector; and a detector for receiving the exited light rays.
    Type: Application
    Filed: May 5, 2009
    Publication date: May 13, 2010
    Applicant: Raintree Scientific Instruments (Shanghai) Corporation
    Inventors: Tongxin Lu, Xiaohan Wang
  • Publication number: 20100083303
    Abstract: A technique for distributing high-quality, user-generated high definition (HD) video content on the web is presented. A system according to the technique may include a service provider including a user database, a catalog database, and a media library. The service provider may receive the HD video content from a user through a content submission method. A method according to the technique receives registration information for the HD video content to be shared and receives the HD video content from a user through a content submission method. The HD video content may then be further processed, such as transcoding to a streamable format using a massively parallel cloud computing platform.
    Type: Application
    Filed: September 26, 2009
    Publication date: April 1, 2010
    Inventors: Janos Redei, Xiaohan Wang
  • Publication number: 20080024790
    Abstract: An optical inspection device of a device-under-test is disclosed, said device comprising a light source, an image rotator, a parabolic reflector, and one or more detectors, wherein said light source provides a light beam traveling through said image rotator and reflecting off said parabolic reflector to a device-under-test and thereby creating diffracted light beams off said device-under-test, and said diffracted light beams reflecting off said parabolic reflector and travels through said image rotator and are received by the detectors.
    Type: Application
    Filed: July 31, 2007
    Publication date: January 31, 2008
    Applicant: Raintree Scientific Instruments (Shanghai) Corporation
    Inventors: Tongxin Lu, Xiaohan Wang