Patents by Inventor Liujun Hu

Liujun Hu 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: 20190253183
    Abstract: Provided in embodiments of the present disclosure is a wireless signal transmission method and device. The method includes: in presence of a plurality of sets of wireless signals having different configurations, cascading consecutive symbols in each of the plurality of sets of wireless signals into at least one symbol cascade block, where when lengths of valid symbols in any two sets of wireless signals of the plurality of sets of wireless signals having different configurations satisfy a proportional relationship of n:m, numbers of symbols in symbol cascade blocks of the two sets of wireless signals within a same time length satisfy a proportional relationship of m:n, and n and m are positive integers; and transmitting symbol cascade blocks of the plurality of sets of wireless signals in a preset order.
    Type: Application
    Filed: August 10, 2017
    Publication date: August 15, 2019
    Inventors: Peng HAO, Junfeng ZHANG, Feng BI, Zhaohua LU, Liujun HU, Xinhui WANG, Gang BAI
  • Patent number: 10299252
    Abstract: A method for transmitting control information, a channel or signal, and a corresponding sending end are provided. The method includes: after performing low bit rate coding and/or low order modulation on data containing the control information, carrying the data on partial physical resources of a reference signal for transmission, herein the coding rate is lower than the highest coding rate set by the system and the modulation order is lower than the highest modulation order set by the system. The method further includes: selecting one transmission mode from multiple transmission modes configured for the channel or signal; transmitting known data; transmitting non-known data and being subject to a coding limitation and/or modulation limitation; and transmitting the non-known data and not being subject to the modulation limitation and the coding limitation; and sending transmission mode configuration information to a receiving end to indicate the selected transmission mode.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: May 21, 2019
    Assignee: ZTE Corporation
    Inventors: Yu Xin, Liujun Hu, Guanghui Yu
  • Patent number: 10292128
    Abstract: Provided are a method, a system and a positioning location calculation device for realizing wireless positioning. The method includes: a positioning measurement device updating locally and statically stored PSS information according to movement information of the positioning measurement device when network connection is performed (200); receiving a positioning signal transmitted by each PSS in a band of a communication network on a determined wireless resource to obtain time information of the positioning signals transmitted by one or more PSSs (201); and calculating location information based on the time information about the positioning signals transmitted by the one or more PSSs and the PSS information according to a preset positioning mode (202).
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: May 14, 2019
    Assignee: ZTE Corporation
    Inventors: Shijun Chen, Liujun Hu, Guanghui Yu, Bo Dai, Zhaohua Lu
  • Patent number: 10256954
    Abstract: Disclosed are a method, apparatus and system for data transmission in a downlink virtual multi-antenna system. The method includes: N terminals receive downlink data and/or downlink Demodulation Reference Signals (DMRSs) from one Node B or multiple Nodes B, N being a positive integer larger than or equal to 2; and one terminal in the N terminals forwards the downlink data and/or downlink DMRSs received from the one Node B or multiple Nodes B to M terminal(s), M being a positive integer larger than or equal to 1. A first forwarding unit of the apparatus is configured to forward received downlink data and/or downlink DMRSs of a Node B to M terminal(s) by one terminal in N terminals, M being a positive integer larger than or equal to 1.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: April 9, 2019
    Assignee: ZTE CORPORATION
    Inventors: Yu Ngok Li, Jin Xu, Jun Xu, Liujun Hu
  • Patent number: 10231205
    Abstract: Provided is a method for sending an in-band positioning signal and in-band positioning system in a communication network. The system includes: a Position Management Station (PMS), arranged to manage one or more Position Service Stations (PSSs) and provide a synchronization reference clock for the one or more PSSs; a positioning center network element, arranged to provide position estimation information for a terminal based on position information of the one or more PSSs and send the position estimation information to the terminal; and the one or more PSSs, of which each PSS uses a same frequency band used by the communication network and is arranged to generate an in-band positioning signal for measuring a distance, regulate a sending clock of the in-band positioning signal according to a difference value between a local sending clock and the synchronization reference clock and send the in-band positioning signal to the terminal.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: March 12, 2019
    Assignee: XI'AN ZHONGXING NEW SOFTWARE CO., LTD.
    Inventors: Shijun Chen, Liujun Hu, Guanghui Yu, Bo Dai, Zhaohua Lu
  • Patent number: 10165557
    Abstract: Disclosed is a data transmission method, including: obtaining subframe types of subframes for bearing data transmission; transmitting data on the subframes according to the subframe types; when the subframe types includes a first predefined subframe type and a first conventional subframe type, configuring a different value for an element in a transmission structure respectively used by the first predefined subframe type and the first conventional subframe type; when the subframe types includes a second predefined subframe type and a second conventional subframe type, configuring the second conventional subframe to be an uplink subframe or downlink subframe within preset time; configuring the second predefined subframe to switch between uplink and downlink within the preset time; and when the subframe types includes a third predefined subframe type and a third conventional subframe type, configuring maximum transmission power of the third predefined subframe to be less than that of the third conventional subfr
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: December 25, 2018
    Assignee: XI'AN ZHONGXING NEW SOFTWARE CO., LTD
    Inventors: Bo Dai, Chunli Liang, Weiwei Yang, YuNgok Li, Guanghui Yu, Liujun Hu, Shuqiang Xia
  • Publication number: 20180279257
    Abstract: Provided are a system message transmission method and device, which relate to the field of wireless communications. According to the system message transmission method, a system message is transmitted at a preset resource location; and a physical downlink channel is transmitted according to the system message. The system message may include at least one of: frequency domain location information of a system, configuration information of a physical shared channel carrying a system message, configuration information of terminal access, available resource information of the physical downlink channel, and radio frame information.
    Type: Application
    Filed: August 30, 2016
    Publication date: September 27, 2018
    Inventors: Bo DAI, Shuqiang XIA, Guanghui YU, Liujun HU, Yifei YUAN
  • Patent number: 10004070
    Abstract: The disclosure discloses a method for sharing a frequency spectrum between a GSM system and a LTE system. The method includes: avoiding fixed channels of the LTE system of a current cell when allocating frequency points of the GSM system to the current cell and a neighbor cell interfering with the current cell; frequency domain resources allocated to users and indicated by Physical Downlink Share Channels (PDSCHs) and Physical Uplink Share Channels (PUSCHs) of the LTE system are not located on same frequency resources with frequency points of the GSM system of the current cell and the neighbor cell interfering with the current cell.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: June 19, 2018
    Assignee: ZTE CORPORATION
    Inventors: Jiying Xiang, Guanghui Yu, Liujun Hu, Shijun Chen, Yanwei Wu, Zhaogang He, Xianming Zhao, Daxiong Xie
  • Publication number: 20170364196
    Abstract: A method for operating a touch screen device and a touch screen device are provided. The method includes that: a touch screen device receives a user command, and identifies the user command (100); when the touch screen device identifies the user command as a mode switching command, the touch screen device switches an operation mode (200); herein the operation mode includes a left hand operation mode, a right hand operation mode or a normal mode. Through a predefined or user-defined operation command, the operation mode switching of a touch screen device may be achieved by a single hand, so the key problem of single-handed operation of a touch screen device with a large screen is solved; and the single-handed operation can be really achieved, thereby improving the user experience of a touch screen device with a large screen.
    Type: Application
    Filed: March 20, 2015
    Publication date: December 21, 2017
    Inventors: Shuanshuan WU, Liujun HU, Ying LIU, Xin JIA
  • Publication number: 20170359795
    Abstract: Provided are a method, a system and a positioning location calculation device for realizing wireless positioning. The method includes: a positioning measurement device updating locally and statically stored PSS information according to movement information of the positioning measurement device when network connection is performed (200); receiving a positioning signal transmitted by each PSS in a band of a communication network on a determined wireless resource to obtain time information of the positioning signals transmitted by one or more PSSs (201); and calculating location information based on the time information about the positioning signals transmitted by the one or more PSSs and the PSS information according to a preset positioning mode (202).
    Type: Application
    Filed: January 20, 2015
    Publication date: December 14, 2017
    Inventors: Shijun CHEN, Liujun HU, Guanghui YU, Bo DAI, Zhaohua LU
  • Publication number: 20170325208
    Abstract: A method for transmitting control information, a channel or signal, and a corresponding sending end are provided. The method includes: after performing low bit rate coding and/or low order modulation on data containing the control information, carrying the data on partial physical resources of a reference signal for transmission, herein the coding rate is lower than the highest coding rate set by the system and the modulation order is lower than the highest modulation order set by the system. The method further includes: selecting one transmission mode from multiple transmission modes configured for the channel or signal; transmitting known data; transmitting non-known data and being subject to a coding limitation and/or modulation limitation; and transmitting the non-known data and not being subject to the modulation limitation and the coding limitation; and sending transmission mode configuration information to a receiving end to indicate the selected transmission mode.
    Type: Application
    Filed: March 24, 2015
    Publication date: November 9, 2017
    Inventors: Yu XIN, Liujun HU, Guanghui YU
  • Publication number: 20170318553
    Abstract: Provided is a method for sending an in-band positioning signal and in-band positioning system in a communication network. The system includes: a Position Management Station (PMS), arranged to manage one or more Position Service Stations (PSSs) and provide a synchronization reference clock for the one or more PSSs; a positioning center network element, arranged to provide position estimation information for a terminal based on position information of the one or more PSSs and send the position estimation information to the terminal; and the one or more PSSs, of which each PSS uses a same frequency band used by the communication network and is arranged to generate an in-band positioning signal for measuring a distance, regulate a sending clock of the in-band positioning signal according to a difference value between a local sending clock and the synchronization reference clock and send the in-band positioning signal to the terminal.
    Type: Application
    Filed: January 14, 2015
    Publication date: November 2, 2017
    Applicant: ZTE Corporation
    Inventors: Shijun CHEN, Liujun HU, Guanghui YU, Bo DAI, Zhaohua LU
  • Patent number: 9794739
    Abstract: An assistant wireless UE positioning method and device is provided, and relates to the field of wireless communication. The device includes: a request sending component configured to, when first UE to which it belongs does not have a positioning capability, initiate an assistant positioning request to at least one piece of second UE which has finished positioning near the first UE, and store sending time of the assistant positioning request; a response receiving component, configured to receive assistant positioning information in response to the assistant positioning request by the second UE, and store receiving time of the assistant positioning information; and a positioning calculation component configured to determine a spatial position by virtue of the assistant positioning information, the receiving information and the sending time of the assistant positioning request.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: October 17, 2017
    Assignee: XI'AN ZHONGXING NEW SOFTWARE CO. LTD
    Inventors: Shijun Chen, Liujun Hu, Guanghui Yu, Lin Chen
  • Publication number: 20170238131
    Abstract: A positioning method and a corresponding terminal and system. A terminal acquires positioning information of the terminal, and sends the acquired positioning information to a first transmission node, the positioning information comprising at least one type of the following information: signal strength information, a subframe or subframe set index, channel characteristic information, access point information and environment characteristic information. The first transmission node transmits the positioning information to a positioning service system, and the positioning service system acquires the positioning information reported by the terminal and determines a geographic position of the terminal according to the positioning information. The present invention can satisfy related enhanced positioning demands.
    Type: Application
    Filed: April 1, 2015
    Publication date: August 17, 2017
    Applicant: ZTE Corporation
    Inventors: Bo Dai, Zhaohua Lu, Liujun Hu, Yoong Li, Shijun Chen
  • Patent number: 9730222
    Abstract: Provided are a method and apparatus for data transmission. In the method, frequency spectrum aggregation is performed on multiple first frequency spectrums corresponding to multiple systems; and data are transmitted on a second frequency spectrum formed through the frequency spectrum aggregation performed on the multiple first frequency spectrums. Through the technical solution provided, the frequency spectrum aggregation of multiple systems is implemented, and the frequency spectrum utilization of a communication system is improved.
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: August 8, 2017
    Assignee: ZTE CORPORATION
    Inventors: Bo Dai, Shuqiang Xia, Peng Hao, Yada Huang, Jianxun Ai, Liujun Hu
  • 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: 20170105185
    Abstract: The present document discloses a wireless synchronization method and a wireless synchronization system. The method includes: determining a synchronization path between a first node and a second node (S110); and using the synchronization path to synchronize the first node and the second node (S120), herein the synchronization path is composed of one or more segments of visible paths, and the visible path is a direct path which connects two nodes visible to each other. The present document further discloses a computer storage medium.
    Type: Application
    Filed: July 25, 2014
    Publication date: April 13, 2017
    Applicant: ZTE Corporation
    Inventors: Shijun CHEN, Liujun HU, Guanghui YU, Haitao LU
  • Publication number: 20170094655
    Abstract: Disclosed is a data transmission method, including: obtaining subframe types of subframes for bearing data transmission; transmitting data on the subframes according to the subframe types; when the subframe types includes a first predefined subframe type and a first conventional subframe type, configuring a different value for an element in a transmission structure respectively used by the first predefined subframe type and the first conventional subframe type; when the subframe types includes a second predefined subframe type and a second conventional subframe type, configuring the second conventional subframe to be an uplink subframe or downlink subframe within preset time; configuring the second predefined subframe to switch between uplink and downlink within the preset time; and when the subframe types includes a third predefined subframe type and a third conventional subframe type, configuring maximum transmission power of the third predefined subframe to be less than that of the third conventional subfr
    Type: Application
    Filed: October 16, 2014
    Publication date: March 30, 2017
    Inventors: Bo DAI, Chunli LIANG, Weiwei YANG, YuNgok LI, Guanghui YU, Liujun HU, Shuqiang XIA
  • Publication number: 20170041829
    Abstract: Disclosed are a data transmission method and apparatus. The method includes: a transmission node acquiring information about a data transmission mode, herein the information about the data transmission mode includes a rapid data transmission mode in which a time-domain length of data transmission is configured based on a time-domain symbol; and the transmission node transmitting data according to the acquired data transmission mode. In the data transmission method, the time-domain length of data transmission is configured based on the time-domain symbol, the setting of the time-domain length of data transmission is flexible, multiple opportunities of data transmission can exist in one subframe, resources used for data transmission can be guaranteed to be found rapidly when there is a data transmission demand, thus rapid data transmission is realized and data transmission delay is reduced.
    Type: Application
    Filed: July 24, 2014
    Publication date: February 9, 2017
    Inventors: Bo DAI, Shuqiang XIA, Qian DAI, Jing SHI, Liujun HU, Zhaohua LU
  • Patent number: 9544038
    Abstract: Disclosed are a method, device and system for signalling transmission in a virtual multi-antenna system. The method includes N terminals receive CSI-RSs from a Node B, N being a positive integer larger than or equal to 2; and one terminal in M terminal(s) calculates channel related information from the Node B to the terminal according to the received CSI-RS, and sends the channel related information to L terminal(s), wherein the M terminal(s) form(s) a subset of the N terminals, M is smaller than or equal to N and larger than or equal to 1, and L is smaller than or equal to N and larger than or equal to 1. A first sending unit in the device is configured to calculate channel related information from a Node B to one terminal in M terminal(s) according to a CSI-RS received by the terminal, and send the channel related information to L terminal(s).
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: January 10, 2017
    Assignee: ZTE CORPORATION
    Inventors: Jin Xu, Yu Ngok Li, Jun Xu, Liujun Hu