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).

  • Patent number: 10980013
    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: Grant
    Filed: August 22, 2017
    Date of Patent: April 13, 2021
    Assignee: China Academy of Telecommunications Technology
    Inventors: Xuejuan Gao, Xueming Pan, Fang-Chen Cheng
  • Publication number: 20210099255
    Abstract: A data transmission method, a terminal device and a network device are provided. The method includes: receiving PDSCH; determining a size of a semi-static HARQ-ACK codebook according to a number of repetition transmissions of the PDSCH; and performing a corresponding HARQ-ACK feedback for the PDSCH with repetition transmissions according to the determined size of the semi-static HARQ-ACK codebook.
    Type: Application
    Filed: March 27, 2019
    Publication date: April 1, 2021
    Applicant: CHINA ACADEMY OF TELECOMUNICATIONS TECHNOLOGY
    Inventor: Xuejuan GAO
  • Publication number: 20210084643
    Abstract: Disclosed are a transmission method, a terminal, and a base station, for use in resolving the technical problem in the prior art that a base station cannot perform accurate uplink scheduling for a scheduling request (SR) of a terminal due to that there is no explicit solution for how to distinguish which SR in a plurality of SR configuration is transmitted simultaneously with other UCIs. In the transmission method for distinguishing a plurality of SR configurations provided by embodiments of the present disclosure, the terminal cascades an M-bit SR with a first UCI and simultaneously transmits same, and M-bit SR information is used for indicating SR states of the plurality of SR configurations of the terminal, ensuring that a base station performs correct uplink scheduling on the terminal.
    Type: Application
    Filed: December 18, 2018
    Publication date: March 18, 2021
    Inventors: Xuejuan GAO, Ekpenyong TONY
  • Patent number: 10951350
    Abstract: A method of transmitting a physical uplink control channel PUCCH, a method of receiving a PUCCH, an apparatus, a user equipment and a base station are provided. The method of transmitting a PUCCH includes: determining a plurality of target slots to transmit to-be-fed-back uplink control information UCI, where the to-be-fed-back UCI is transmitted in the target slots by using the PUCCH; determining a transmission duration or format of the PUCCH carrying the to-be-fed-back UCI in each of the plurality of target slots respectively; transmitting, in accordance with the determined transmission duration or format of the PUCCH, the PUCCH carrying the to-be-fed-back UCI in each of the plurality of target slots.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: March 16, 2021
    Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventor: Xuejuan Gao
  • Publication number: 20210058197
    Abstract: A HARQ-ACK message transmission method, a terminal and a base station are provided. The transmission method includes: when HARQ-ACK for a physical downlink channel received before BWP switching needs to be fed back after the BWP switching, determining, according to a preset rule, whether to transmit the HARQ-ACK for the physical downlink channel after the BWP switching.
    Type: Application
    Filed: March 13, 2019
    Publication date: February 25, 2021
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventor: Xuejuan GAO
  • Patent number: 10932246
    Abstract: Embodiments of the present disclosure provide methods and devices for dynamically determining a transmission location of an Uplink (UL) DeModulation Reference Signal (DMRS), including: receiving, by a terminal, a DownLink (DL) control channel; and determining, by the terminal, the transmission location of the UL DMRS according to the DL control channel.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: February 23, 2021
    Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Xuejuan Gao, Xueming Pan
  • Publication number: 20210050948
    Abstract: The embodiments of the present application relate to a method for performing hybrid automatic repeat request feedback, and a terminal, for solving the problem existing in the prior art that there is no clear solution regarding how to perform feedback on HARQ-ACK of an SPS PDSCH. In the embodiments of the present application, the terminal adds or removes HARQ-ACK of an SPS PDSCH in an HARQ-ACK codebook transmitted over a PUCCH or a PUSCH, and transmits a processed HARQ-ACK codebook. Since the terminal can add or remove the HARQ-ACK of the SPS PDSCH in the HARQ-ACK codebook transmitted over the PUCCH or the PUSCH, a solution to perform feedback on the HARQ-ACK of the SPS PDSCH is given, improving system performance.
    Type: Application
    Filed: December 29, 2018
    Publication date: February 18, 2021
    Inventors: Xuejuan GAO, Qianqian SI, Ekpenyong TONY
  • Publication number: 20210051705
    Abstract: An uplink transmission method and an uplink transmission device are provided. The uplink transmission method includes: detecting an UL grant on a target time-domain resource and a target frequency-domain resource in a first time unit, the UL grant being to schedule one or more UEs to perform uplink transmission in a target time unit, a time unit having a predefined length of B1 subframes or B2 symbols, where B1 and B2 are each an integer greater than or equal to 1; acquiring scheduling information for the UE in the target time unit from the UL grant; and performing the uplink transmission on a time-domain resource and a frequency-domain resource scheduled in the target time unit in accordance with the scheduling information.
    Type: Application
    Filed: November 2, 2020
    Publication date: February 18, 2021
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Xuejuan GAO, Fangchen CHENG, Xueming PAN
  • Patent number: 10911202
    Abstract: Disclosed are an uplink and downlink transmission resource allocation method and device. In this application, a first channel is transmitted on a specified time-frequency resource within a first channel transmitting period according to the first channel transmitting period. The first channel is at least used for notifying allocation information of an uplink transmission resource and a downlink transmission resource within the first channel transmitting period or an effective time period of the first channel, so that dynamic partitioning and notification of the uplink transmission resource and the downlink transmission resource are achieved.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: February 2, 2021
    Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Xuejuan Gao, Fang-chen Cheng, Xueming Pan, Shaohui Sun
  • Patent number: 10911283
    Abstract: A method of generating an uplink signal sequence, a user equipment, a base station and a computer-readable storage medium are provided. The method includes: generating an uplink signal sequence ru,v(?)(n) based on ru,v(?)(n)=ej?nru,v(n), 0?n<12, where a is configured to distinguish a terminal, an uplink signal base sequence ru,v(n)=ej?(n)?/4, where u represents a group number, and v represents an intra-group base sequence number, ?(n)?/4 represents a phase of a base sequence; performing a full traversal of multiple possible phases of the phase ?(n)?/4 on the uplink signal sequence with a length of 12, and selecting a predetermined number of uplink signal sequences with a lowest peak-to-average power ratio and a lowest cross-correlation characteristic.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: February 2, 2021
    Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Xiangli Lin, Xuejuan Gao, Tony Ekpenyong
  • Publication number: 20210021386
    Abstract: A data transmission method, a terminal device, and a network device are provided. The data transmission method includes: receiving a PDSCH; and mapping HARQ-ACK feedback information corresponding to a PDSCH with repetition transmissions at least to a first transmission position for transmission, where the first transmission position is a position corresponding to a last transmission of the repetition transmissions of the PDSCH in a semi-static HARQ-ACK codebook.
    Type: Application
    Filed: January 31, 2019
    Publication date: January 21, 2021
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventor: Xuejuan GAO
  • Publication number: 20210021316
    Abstract: Disclosed are a channel quality indication (CQI) sending method, and a data sending method and device, for use to solve the problem of low data transmission efficiency. The CQI sending method includes receiving indication information sent by a base station and used for indicating CQI transmission, the indication information comprising at least a target block error ratio for measurement feedback, a data repeated transmission frequency, and an CSI measurement resource and determining a CQI according to the target block error rate for measurement feedback, the data repeated transmission frequency, and the CSI measurement resource, and sending the CQI to the base station.
    Type: Application
    Filed: March 21, 2019
    Publication date: January 21, 2021
    Inventors: Wei BAI, Xuejuan GAO, Yanping XING
  • Patent number: 10897761
    Abstract: A data transmission method, a terminal and a base station are provided. The data transmission method includes: determining, by a terminal, data transmitted in the first TTI length and/or data transmitted in the second TTI length that are processed in a same sub-frame based on capability reported by the terminal or a predefined rule, the data including a shared channel and/or a control channel; wherein the first TTI length is less than the second TTI length.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: January 19, 2021
    Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Xuejuan Gao, Fangchen Cheng, Xueming Pan
  • Patent number: 10897337
    Abstract: Disclosed in the present application are a data transmission method and device.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: January 19, 2021
    Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Xiangli Lin, Ekpenyong Tony, Xuejuan Gao
  • Publication number: 20210014854
    Abstract: Provided are an uplink control information transmitting method and receiving method, a terminal, a base station and an apparatus. The transmitting method includes: determining a first transmission resource for first uplink control information and second transmission resources for second uplink control information; and when the first transmission resource overlaps with at least two of the second transmission resources in the time domain, transmitting the first uplink control information and at least one of the second uplink control information simultaneously on the first transmission resource; wherein the at least one of the second uplink control information is the uplink control information carried on the at least two second transmission resources that overlap with the first transmission resource in the time domain.
    Type: Application
    Filed: February 27, 2019
    Publication date: January 14, 2021
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventor: Xuejuan GAO
  • Publication number: 20200404649
    Abstract: Provided are a method and an apparatus of determining a cap of transmission resources available for control information and a communication device. The method of determining a cap of transmission resources available for control information includes: determining, according to a ratio coefficient, a cap of transmission resources to be occupied by coded modulation symbols of control information on a PUSCH.
    Type: Application
    Filed: December 25, 2018
    Publication date: December 24, 2020
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Qianqian SI, Xuejuan GAO
  • Publication number: 20200404694
    Abstract: A data transmission method, a terminal and a base station are provided. The method includes: receiving a downlink control channel, and indication information for indicating a division of uplink resources and downlink resources in a time unit; determining uplink resources and/or downlink resources in a target time unit corresponding to the downlink control channel, according to the indication information, where the target time unit is the time unit in which a target transmission corresponding to the downlink control channel is located; and determining time field resources of the target transmission corresponding to the downlink control channel in the uplink resources or the downlink resources, and performing the target transmission in the time field resources.
    Type: Application
    Filed: February 7, 2018
    Publication date: December 24, 2020
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Xuejuan GAO, Xueming PAN
  • Publication number: 20200404666
    Abstract: The disclosure provides a transmission method and device. The transmission method includes: receiving, by a user equipment, configuration information for indicating whether transmission of uplink control information on a first physical uplink shared channel is supported; and transmitting, by the user equipment, the first physical uplink shared channel and/or the uplink control information based on the configuration information.
    Type: Application
    Filed: November 2, 2018
    Publication date: December 24, 2020
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Xuejuan GAO, Tony EKPENYONG
  • Patent number: 10873421
    Abstract: The invention relates to the field of wireless communication technology, and in particular, to a method and device for transmitting and receiving feedback information, resolving a problem of providing ACK/NACK feedback of a physical uplink shared channel (PUSCH) transmission in an uplink pilot time slot (UpPTS). In one embodiment of the invention, the method comprises: a terminal transmits, in a special subframe n, PUSCH data, and receive, in a subframe (n+kPHICH), physical hybrid-ARQ indicator channel (PHICH) data corresponding to the PUSCH data, wherein a PHICH is used to carry feedback information of the PUSCH data; and a network apparatus receives, in the special subframe n, the PUSCH data, and transmits, in the subframe (n+kPHICH), the PHICH data corresponding to the PUSCH data. Therefore, the embodiment implements transmission of ACK/NACK of PUSCH data in an UpPTS.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: December 22, 2020
    Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Xuejuan Gao, Xueming Pan
  • Publication number: 20200374070
    Abstract: Disclosed in the present application are a data transmission method and device.
    Type: Application
    Filed: June 26, 2018
    Publication date: November 26, 2020
    Inventors: Xiangli LIN, Ekpenyong TONY, Xuejuan GAO