Patents by Inventor Xiaohui Hou
Xiaohui Hou 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).
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Patent number: 12278775Abstract: Provided are a Multicast Broadcast Single Frequency Network (MBSFN) subframe processing method and apparatus, a base station and user equipment. In the solution, a base station places an MBSFN Reference Signal (RS) in a 0-filling region of an MBSFN subframe for transmission, thus making full use of time frequency resources, and facilitating User Equipment (UE) in performing channel estimation by using the MBSFN RS during reception.Type: GrantFiled: July 30, 2020Date of Patent: April 15, 2025Assignee: ZTE CORPORATIONInventors: Fubo Shi, Xiaohui Hou
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Publication number: 20220385422Abstract: Provided are a Multicast Broadcast Single Frequency Network (MBSFN) subframe processing method and apparatus, a base station and user equipment. In the solution, a base station places an MBSFN Reference Signal (RS) in a 0-filling region of an MBSFN subframe for transmission, thus making full use of time frequency resources, and facilitating User Equipment (UE) in performing channel estimation by using the MBSFN RS during reception.Type: ApplicationFiled: July 30, 2020Publication date: December 1, 2022Inventors: Fubo SHI, Xiaohui HOU
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Patent number: 11108438Abstract: Disclosed are a method and apparatus for processing an uplink frequency offset of a communication system. The method on a base station side includes: demodulating a random access message sent by a terminal to obtain an initial Doppler frequency offset of the terminal and delivering the initial Doppler frequency offset to the terminal; receiving an uplink subframe signal sent by the terminal, estimating a residual Doppler frequency offset of the terminal on an uplink, obtaining a frequency retuning amount according to the residual Doppler frequency offset and delivering the frequency retuning amount to the terminal.Type: GrantFiled: June 1, 2018Date of Patent: August 31, 2021Inventors: Xiaohui Hou, Feng Yang, Qinbo Lu
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Patent number: 10944495Abstract: Provided is an anti-interference method and system. The anti-interference method includes: setting an orthogonal code division sequence according to a subcarrier position in a frequency domain of resource elements (REs) of a data channel in at least one sub-frame; and configuring transmitting frequency domain symbols of the REs by using the orthogonal code division sequence corresponding to the subcarrier position of the REs.Type: GrantFiled: December 22, 2016Date of Patent: March 9, 2021Assignee: ZTE CorporationInventor: Xiaohui Hou
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Publication number: 20200328835Abstract: Provided is an anti-interference method and system. The anti-interference method includes: setting an orthogonal code division sequence according to a subcarrier position in a frequency domain of resource elements (REs) of a data channel in at least one sub-frame; and configuring transmitting frequency domain symbols of the REs by using the orthogonal code division sequence corresponding to the subcarrier position of the REs.Type: ApplicationFiled: December 22, 2016Publication date: October 15, 2020Inventor: Xiaohui HOU
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Publication number: 20200204217Abstract: Disclosed are a method and apparatus for processing an uplink frequency offset of a communication system. The method on a base station side includes: demodulating a random access message sent by a terminal to obtain an initial Doppler frequency offset of the terminal and delivering the initial Doppler frequency offset to the terminal; receiving an uplink subframe signal sent by the terminal, estimating a residual Doppler frequency offset of the terminal on an uplink, obtaining a frequency retuning amount according to the residual Doppler frequency offset and delivering the frequency retuning amount to the terminal.Type: ApplicationFiled: June 1, 2018Publication date: June 25, 2020Applicant: ZTE CORPORATIONInventors: Xiaohui Hou, Feng Yang, Qinbo Lu
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Patent number: 10624123Abstract: Provided are a PRACH access control method, access method and device. The PRACH access control method includes: receiving a PRACH preamble serial number transmitted by a terminal in each subframe of a virtual access frame; obtaining a PRACH access serial number of the terminal based on the received PRACH preamble serial number according to a mapping, which is predetermined with the terminal, between PRACH preamble serial numbers and PRACH access serial numbers; and transmitting the obtained PRACH access serial number to the terminal.Type: GrantFiled: September 15, 2015Date of Patent: April 14, 2020Assignee: ZTE CorporationInventors: Xiaohui Hou, Feng Yang, Xinglin Yao, Yanmei Li, Yanpeng Wang
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Patent number: 10104713Abstract: A method for implementing networking of an access network includes: implementing networking of small cells within a range covered by a macro coverage cell to form a distributed cell when number of the small cells within the range covered by the macro coverage cell reaches a threshold; and communicating the small cells in the distributed cell with neighboring cells or core network CN through the macro coverage cell in the distributed cell, where the neighboring cells include another distributed cell, a conventional cell.Type: GrantFiled: January 23, 2015Date of Patent: October 16, 2018Assignee: ZTE CORPORATIONInventors: Xiaohui Hou, Bin Xiao
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Publication number: 20180184448Abstract: Provided are a PRACH access control method, access method and device. The PRACH access control method includes: receiving a PRACH preamble serial number transmitted by a terminal in each subframe of a virtual access frame; obtaining a PRACH access serial number of the terminal based on the received PRACH preamble serial number according to a mapping, which is predetermined with the terminal, between PRACH preamble serial numbers and PRACH access serial numbers; and transmitting the obtained PRACH access serial number to the terminal.Type: ApplicationFiled: September 15, 2015Publication date: June 28, 2018Inventors: Xiaohui HOU, Feng YANG, Xinglin YAO, Yanmei LI, Yanpeng WANG
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Publication number: 20170303261Abstract: A method and device for allocating radio resource are provided. The method includes: a radio resource request message from a terminal is received via a Physical Random Access Channel (PRACH) or a Physical Uplink Control Channel (PUCCH), wherein location information of the terminal and/or a movement speed of the terminal is carried in the request message; a radio resource allocated to the terminal is determined according to the location information and/or the movement speed; and instruction information is sent to the terminal, wherein the indication information indicates the terminal to access the determined radio resource allocated to the terminal.Type: ApplicationFiled: January 15, 2015Publication date: October 19, 2017Inventors: Xiaohui HOU, Lianfeng ZHAO
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Publication number: 20170280505Abstract: A method for implementing networking of an access network includes: implementing networking of small cells within a range covered by a macro coverage cell to form a distributed cell when number of the small cells within the range covered by the macro coverage cell reaches a threshold; and communicating the small cells in the distributed cell with neighboring cells or core network CN through the macro coverage cell in the distributed cell, where the neighboring cells include another distributed cell, a conventional cell.Type: ApplicationFiled: January 23, 2015Publication date: September 28, 2017Applicant: ZTE CORPORATIONInventors: Xiaohui HOU, Bin XIAO
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Patent number: 9258151Abstract: A diversity combining method applied by a receiver in a wireless communication system is provided, including: acquiring baseband signals of receiving channels corresponding to multiple receiving antennas, and combining multiple acquired baseband signals according to a Maximal-Ratio Combining (MRC) principle at an intermediate frequency and/or within an equalizer and/or after the equalizer. Further a receiver in a wireless communication system is provided. By means of the technical solutions of the disclosure, it is possible to improve a demodulation threshold and the demodulation sensitivity of a microwave system.Type: GrantFiled: September 17, 2013Date of Patent: February 9, 2016Assignee: ZTE CORPORATIONInventor: Xiaohui Hou
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Patent number: 9147271Abstract: A method for enabling graphical representation of aggregated data is provided. The method includes accessing aggregated data retrieved from a plurality of on-line sources and receiving selection of a portion of the data through a graphical user interface. The method further includes identifying attributes associated with the portion of the data and generating a graphical representation of the portion of the data.Type: GrantFiled: June 20, 2007Date of Patent: September 29, 2015Assignee: Microsoft Technology Licensing, LLCInventors: Yingnong Dang, Dongmei Zhang, Min Wang, Xiaohui Hou, Jian Wang
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Publication number: 20150229496Abstract: A diversity combining method applied by a receiver in a wireless communication system is provided, including: acquiring baseband signals of receiving channels corresponding to multiple receiving antennas, and combining multiple acquired baseband signals according to a Maximal-Ratio Combining (MRC) principle at an intermediate frequency and/or within an equalizer and/or after the equalizer. Further a receiver in a wireless communication system is provided. By means of the technical solutions of the disclosure, it is possible to improve a demodulation threshold and the demodulation sensitivity of a microwave system.Type: ApplicationFiled: September 17, 2013Publication date: August 13, 2015Applicant: ZTE CORPORATIONInventor: Xiaohui Hou
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Patent number: 9094243Abstract: A method and apparatus for estimating phase noise, a receiver, and a communication device are provided. The method includes: obtaining a transmitted symbol estimation value ã(k) which is corresponding to a equalized symbol r(k) of received data, where k=0, . . . , K?1, and K is the number of symbols in one received data frame; obtaining a public phase noise estimation value according to r(k) and ã(k); obtaining a residual phase noise estimation value according to r(k), ã(k), and the public phase noise estimation value; obtaining a phase noise estimation value according to the public phase noise estimation value, the residual phase noise estimation value and a basis function matrix of Discrete Cosine Transform. The technical solution of the disclosure can estimate the phase noise effectively, then compensate the receiving signals which are influenced by the phase noise, achieve the purpose for accurately detecting the transmitted symbol, and improve system performance.Type: GrantFiled: June 27, 2012Date of Patent: July 28, 2015Assignee: ZTE CorporationInventor: Xiaohui Hou
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Publication number: 20140334529Abstract: A method and apparatus for estimating phase noise, a receiver, and a communication device are provided. The method includes: obtaining a transmitted symbol estimation value ã(k) which is corresponding to a equalized symbol r(k) of received data, where k=0, . . . , K?1, and K is the number of symbols in one received data frame; obtaining a public phase noise estimation value according to r(k) and ã(k); obtaining a residual phase noise estimation value according to r(k), ã(k), and the public phase noise estimation value; obtaining a phase noise estimation value according to the public phase noise estimation value, the residual phase noise estimation value and a basis function matrix of Discrete Cosine Transform. The technical solution of the disclosure can estimate the phase noise effectively, then compensate the receiving signals which are influenced by the phase noise, achieve the purpose for accurately detecting the transmitted symbol, and improve system performance.Type: ApplicationFiled: June 27, 2012Publication date: November 13, 2014Applicant: ZTE CORPORATIONInventor: Xiaohui Hou
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Publication number: 20140216304Abstract: This invention is directed to a process for preparing an additive for cementitious materials, in particular an admixture for paste, grout, mortar and concrete applications as well as a cement additive for cement production by grinding, from a sugar-based material. The process comprises a step of the sugar-based material being subjected to a sulfonation treatment.Type: ApplicationFiled: May 17, 2011Publication date: August 7, 2014Applicant: CONSTRUCTION RESEARCH & TECHNOLOGY GMBHInventors: Xiaohui Hou, Tomomi Sugiyama, Jan Kluegge, Akira Ohta
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Patent number: 8315482Abstract: Described is a technology that provides an integrated platform for users to use different kinds of digital ink (e.g., handwritten characters, sketched shapes, handwritten formulas) when interacting with computer programs. The platform interprets the user's digital ink input and outputs one or more associated items into an application program. The output items can be customized for different application programs. In one aspect, the platform includes an ink panel having different operating modes for receiving digital ink, and a recognition service that recognizes different types of digital ink. The recognition service may include a unified recognizer that recognizes different types of digital ink, e.g., characters and shapes. Another recognizer may be included such as an equation recognizer. If the recognition result is text while in a non-text mode, the text may be used in a keyword search to locate items; otherwise, the recognition result may be used without keyword searching.Type: GrantFiled: June 26, 2007Date of Patent: November 20, 2012Assignee: Microsoft CorporationInventors: Xiaohui Hou, Yingjun Qiu, Dongmei Zhang, Jian Wang
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Patent number: 8302197Abstract: A method for identifying data related to a software security issue is provided. The method includes accessing a software security issue and determining one or more attributes associated with the software security issue. The method also includes accessing aggregated software security data retrieved from a plurality of on-line sources and searching the aggregated software security data for the attributes associated with the security issue. The method further includes associating a portion of the aggregated data with the security issue based on matching the attributes associated with the security issue with contents of the portion of the aggregated data.Type: GrantFiled: June 28, 2007Date of Patent: October 30, 2012Assignee: Microsoft CorporationInventors: Song Huang, Yingnong Dang, Xiaohui Hou, Dongmei Zhang, Jian Wang
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Patent number: 8250651Abstract: A method for identifying a portion of aggregated software security data is described. The method includes accessing aggregated data associated with software vulnerabilities retrieved from a plurality of on-line sources. The method further includes searching a portion of the aggregated data for an exact match to a particular attribute of the data and searching the portion of the aggregated data for one or more partial matches associated with the particular attribute. The method also includes associating the portion of the data with the particular attribute based on the exact match of one or more of the partial matches.Type: GrantFiled: June 28, 2007Date of Patent: August 21, 2012Assignee: Microsoft CorporationInventors: Song Huang, Yingnong Dang, Xiaohui Hou, Dongmei Zhang, Jian Wang