Patents by Inventor Xuejuan Gao

Xuejuan Gao 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: 20200187194
    Abstract: Disclosed in the present application are a uplink control channel transmission method and device, for solving the problems, in the prior art, that no relevant solution for defining the transmission structure of a long NR-PUCCH with different lengths in consideration with whether the intra-slot frequency hopping is supported is available yet. The method includes: determining a transmission length or format of a uplink control channel (PUCCH) in a slot; determining a transmission structure of the PUCCH on the basis of the transmission length or format; and transmitting the PUCCH in the slot according to the transmission structure.
    Type: Application
    Filed: April 27, 2018
    Publication date: June 11, 2020
    Inventor: Xuejuan GAO
  • Publication number: 20200187169
    Abstract: Disclosed in the present application are a data transmission method and a device, comprising: dividing a time unit into DL areas, a time unit including at least two DL areas; notifying a terminal of the divided DL areas by means of configuration signaling. The terminal receiving the configuration signaling; according to said configuration signaling, determining DL areas into which a time unit is divided. Using the present application, defining at least two DL detection areas in a time unit, a terminal detects a downlink transmission in each detection area, and, when one is detected, performs ACK/NACK feedback in an uplink area corresponding to said downlink area. In the present invention, each downlink area has a defined feedback and scheduling relationship, respectively, by means of dividing a time unit into multiple downlink areas, thereby increasing scheduling flexibility and system resource utilization.
    Type: Application
    Filed: August 22, 2017
    Publication date: June 11, 2020
    Applicant: China Academy of Telecommunications Technology
    Inventors: Xuejuan GAO, Xueming PAN, Fang-Chen CHENG
  • Publication number: 20200177423
    Abstract: An information transmission method, a terminal and a base station are provided. The method includes: acquiring a symbol occupied by a physical uplink control channel (PUCCH) in a time unit; determining a cyclic shift (CS) value corresponding to the symbol; and transmitting the PUCCH on the symbol according to the CS value.
    Type: Application
    Filed: July 25, 2018
    Publication date: June 4, 2020
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Xuejuan GAO, Tony EKPENYONG
  • Publication number: 20200170018
    Abstract: Disclosed are a data transmission method, a terminal, and a base station. Determined is that a TB needs to be divided into M CBG; grouping, according to a preset grouping scheme, multiple CB produced when the one TB is code block segmented, thus diving the one TB into the M CBG; and transmitting data according to the M CBG, where M is a positive integer. The technical solution of the present invention solves the technical problem of low data transmission efficiency and low resource utilization rate in an LTE system found in the prior art.
    Type: Application
    Filed: April 18, 2018
    Publication date: May 28, 2020
    Applicant: China Academy of Telecommunications Technology
    Inventors: Xuejuan GAO, Ekpenyong TONY, Fang-Chen CHENG
  • Publication number: 20200170033
    Abstract: Embodiment of the present application provides a transmission method, a terminal device, and a base station, used to solve the technical problem in the related art that there is no method supporting CBG-based retransmission and ACK/NACK feedback. The transmission method comprises: receiving by the terminal device a downlink control channel; and acquiring by the terminal device a first indication field from the downlink control channel, the first indication field being used to indicate whether each code block group (CBG) in the corresponding CBGs in an initial transmission of TB needs to be retransmitted.
    Type: Application
    Filed: March 29, 2018
    Publication date: May 28, 2020
    Applicant: China Academy of Telecommunications Technology
    Inventors: Xuejuan GAO, Ekpenyong TONY, Fang-Chen CHENG
  • Publication number: 20200170007
    Abstract: Provided in the embodiments of the present application are a physical uplink control channel (PUCCH) transmission method, user equipment and a device, used to solve the technical problem in an existing technology wherein no related method or device supports PUCCH transmission in a new wireless communication system.
    Type: Application
    Filed: June 21, 2018
    Publication date: May 28, 2020
    Inventor: Xuejuan GAO
  • Publication number: 20200170004
    Abstract: Disclosed are a method and device for transmitting uplink control information, which are used for realizing a UE performing switching transmission of an uplink control channel on subframes and carriers, so that if the UE fails to pre-empt a resource on an unlicensed carrier, the UE may switch to the other carriers for transmission or continue to try to perform LBT in subsequent subframes, so as to ensure the timely and correct transmission of the uplink control information. The method comprises: a UE determining a physical uplink control channel (PUCCH) switching carrier group and the maximum feedback delay.
    Type: Application
    Filed: January 24, 2017
    Publication date: May 28, 2020
    Applicant: China Academy of Telcommunications Technology
    Inventors: Qianqian SI, Xuejuan GAO, Xueming PAN, Jiaqing WANG
  • Patent number: 10651999
    Abstract: Various embodiments of the present disclosure provide a transmission method, device, and system.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: May 12, 2020
    Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Xuejuan Gao, Xueming Pan
  • Publication number: 20200146036
    Abstract: Disclosed in an embodiment of the present application are a method and device for determining whether data is damaged, the method comprising: a terminal receiving a downlink control channel which is used for scheduling retransmission; according to the downlink control channel, the terminal determining whether damaged data is present during N previous transmissions of a retransmitted data packet, which are scheduled by the downlink control channel, N being an integer greater than or equal to 1; hence, the terminal receives the downlink control channel which is used for scheduling retransmission, and determines, according to the downlink control channel, whether damaged data is present during the N previous transmissions of the retransmitted data packet, which are scheduled by the downlink control channel, thereby improving transmission performance.
    Type: Application
    Filed: March 14, 2018
    Publication date: May 7, 2020
    Inventors: Xuejuan GAO, Ekpenyong TONY, Fang-Chen CHENG
  • Publication number: 20200068566
    Abstract: A data transmission method, a terminal and a base station are provided by the present disclosure. The data transmission method of the present disclosure includes: receiving a downlink control channel carrying an indication field, wherein the indication field is used for indicating a time domain resource of a target transmission corresponding to the downlink control channel, and/or division of uplink resources and downlink resources in a target time unit in which the target transmission is located; determining the time domain resource of the target transmission corresponding to the downlink control channel, according to the indication field; and transmitting data on the time domain resource.
    Type: Application
    Filed: February 7, 2018
    Publication date: February 27, 2020
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Xuejuan GAO, Xueming PAN
  • Patent number: 10560902
    Abstract: The present disclosure provides a method, a device and an apparatus for controlling uplink transmission power, and a storage medium. The method includes: receiving, by a UE, configuration information, and determining a PC parameter corresponding to a TTI length of a first type and a PC parameter corresponding to a TTI length of a second type in accordance with the configuration information; and determining, by the UE, transmission power of a channel which is transmitted using the TTI length of the first type in accordance with the PC parameter corresponding to the TTI length of the first type, and transmission power of a channel which is transmitted using the TTI length of the second type in accordance with the PC parameter corresponding to the TTI length of the second type.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: February 11, 2020
    Assignee: China Academy of Telecommunications Technology
    Inventors: Xuejuan Gao, Songtao Liu, Xueming Pan
  • Publication number: 20200036586
    Abstract: Disclosed in the present application are a data transmission method and device, solving the problem of using a dynamic uplink-downlink resource division manner for data transmission in a new wireless communication system. The method comprises: a terminal determining the start position of a time unit of the terminal, and determining the division of an uplink region and a downlink region in the time unit; the terminal detecting a downlink control channel in the downlink region of the time unit; and according to the detection result, the terminal performing an uplink transmission in the uplink region corresponding to the downlink region. As a terminal uses a time unit specific to the terminal for transmission, time units of different terminals may have different start positions, and the number and lengths of the uplink regions and/or downlink regions included in the time units of different terminals may also be different. Thus, the invention can support flexible and variable resource division.
    Type: Application
    Filed: June 29, 2017
    Publication date: January 30, 2020
    Inventors: Xuejuan GAO, Xueming PAN, Fang-Chen CHENG
  • Publication number: 20200037349
    Abstract: Disclosed in the present invention are a method and apparatus for transmitting uplink control information (UCI), solving the problem of UCI transmission in a short transmission time interval (TTI). The method comprises: a terminal determining a short transmission time interval (TTI) position and/or a short uplink channel for transmitting UCI; and the terminal transmitting the UCI on the determined short-TTI position and/or the short uplink channel, thereby providing a solution for transmitting periodic UCI in a short-TTI, and thus ensuring that the periodic UCI may be normally transmitted in the short-TTI.
    Type: Application
    Filed: July 12, 2017
    Publication date: January 30, 2020
    Inventor: Xuejuan GAO
  • Publication number: 20200036501
    Abstract: The present invention discloses a data transmission method and apparatus. The method comprises: determining on a terminal side whether there is an overlap between a transmission time of an uplink channel which transmits using a first transmission time interval length and a transmission time of an uplink channel which transmits using a second transmission time interval length; when there is an overlap, then selecting a part of the uplink channel for transmission according to a predetermined rule, and abandoning the remaining uplink channel for transmission or puncturing the transmission of the remaining uplink channel. On a network side, determining that the terminal selects one type of uplink channel for transmission according to the predetermined rule, and abandons another type of uplink channel for transmission or punctures the transmission of another type of uplink channel.
    Type: Application
    Filed: August 21, 2017
    Publication date: January 30, 2020
    Inventors: Xuejuan GAO, Xueming PAN
  • Publication number: 20200029348
    Abstract: A scheduling request transmission method and a related device, used to solve the technical problem wherein no technical solution is currently available for providing SR feedback for terminals supporting different transmission time intervals. The method comprises: a terminal acquiring a first physical uplink control channel (PUCCH) resource corresponding to a first SR and a second PUCCH resource corresponding to a second SR, the first PUCCH resource being different from the second PUCCH resource; the first SR corresponding to a first transmission time interval (TTI) length, and the second SR corresponding to a second TTI length, the first TTI length being different from the second TTI length; the terminal determining whether the first SR and/or the second SR require transmission; if the first SR and/or the second SR require transmission, the terminal transmitting the first SR and/or the second SR by means of a PUCCH.
    Type: Application
    Filed: February 9, 2018
    Publication date: January 23, 2020
    Applicant: China Academy of Telecommunications Technology
    Inventors: Xuejuan GAO, Xueming PAN
  • Publication number: 20190394773
    Abstract: A UCI transmission method, a UCI reception method, a terminal and a base station are provided. The UCI transmission method includes, when a collision is present between different types of UCIs with a first TTI length and/or a collision is present between a UCI with the first TTI length and a UCI with a second TTI length, transmitting the UCIs with the collision to a base station simultaneously using a second sPUCCH format on a predetermined sPUCCH resource corresponding to the second sPUCCH format, or determining a transmission scheme for the UCIs with the collision in accordance with a sPUCCH format adopted by the UCI with the first TTI length.
    Type: Application
    Filed: February 7, 2018
    Publication date: December 26, 2019
    Applicant: CHINA ACADEMY OF TELECOMUNICATIONS TECHNOLOGY
    Inventors: Xuejuan GAO, Xueming PAN
  • Publication number: 20190387521
    Abstract: Disclosed are a subframe type notification and determination methods and device. The invention enables a terminal to dynamically determine a subframe type, such that a subframe type can be flexibly changed to adapt to different service transmission requirements, thereby increasing system transmission efficiency. The subframe type determination method of the invention comprises: detecting, in a preset resource, indication information for determining a subframe type; and determining, according to a detection result, the subframe type.
    Type: Application
    Filed: May 19, 2017
    Publication date: December 19, 2019
    Inventors: Xuejuan GAO, Xueming PAN
  • Publication number: 20190379515
    Abstract: A method and a device for dividing short TTIs of a special subframe are provided. The method includes: in a case that a configuration of a special subframe having a normal CP is used in downlink, and a DwPTS of the special subframe is used for short TTI transmission, dividing short TTIs in the DwPTS based on a predefined division pattern of short TTIs in a case that based on the configuration of the special subframe having the normal CP used in downlink and a length of a control region in the DwPTS, the DwPTS is determined to satisfy a division condition corresponding to the predefined division pattern of short TTIs.
    Type: Application
    Filed: February 8, 2018
    Publication date: December 12, 2019
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Xuejuan GAO, Xiangli LIN
  • Patent number: 10484065
    Abstract: The present disclosure provides in some embodiments a method and a device for transmitting CSI. The method for transmitting the CSI includes steps of: determining, by a UE, a first number of bits used for a joint encoding operation on a BI and a RI, the BI being configured to indicate an index of a resource for transmitting a reference signal corresponding to the RI measured by the UE, an identical first number of bits being used for the joint encoding operation on RI(s) and the BI corresponding to all resources for transmitting the reference signal; and performing, by the UE, the joint encoding operation on the RI and the BI in accordance with the first number of bits to acquire encoding information, and transmitting the encoding information.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: November 19, 2019
    Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Qiuping Huang, Runhua Chen, Qiubin Gao, Rakesh Tamrakar, Fangchen Cheng, Xuejuan Gao
  • Publication number: 20190349167
    Abstract: Various embodiments of the present disclosure provide a transmission method, device, and system.
    Type: Application
    Filed: January 13, 2017
    Publication date: November 14, 2019
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Xuejuan GAO, Xueming PAN