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: 11082958
    Abstract: The present application provides a PUCCH-based uplink control information transmission method and apparatus. User equipment determines, according to downlink control information (DCI), a format of a physical uplink control channel (PUCCH) and/or information of a used orthogonal sequence; and the user equipment transmits, according to the format of the PUCCH and/or the information of the used orthogonal sequence, uplink control information borne by the PUCCH. The present application can implement selection of a transmission structure of a PUCCH to transmit uplink control information.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: August 3, 2021
    Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Xuejuan Gao, Fang-Chen Cheng
  • Publication number: 20210234630
    Abstract: An MCS table determination method, terminal, and base station and readable storage medium, used to determine an MCS table to be used in a communication process from out of a plurality of MCS tables. The method comprises: a terminal receives radio resource control (RRC) signaling sent by a base station and carrying indication information, the indication information being used to indicate a first MCS table, the first MCS table being one of a first MCS table type and a second MCS table type; and the terminal determines the first MCS table on the basis of the indication information.
    Type: Application
    Filed: May 5, 2019
    Publication date: July 29, 2021
    Inventors: Wei BAI, Yanping XING, Xuejuan GAO
  • Patent number: 11057923
    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: Grant
    Filed: March 29, 2018
    Date of Patent: July 6, 2021
    Assignee: China Academy of Telecommunications Technology
    Inventors: Xuejuan Gao, Ekpenyong Tony, Fang-Chen Cheng
  • Patent number: 11057872
    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: Grant
    Filed: January 24, 2017
    Date of Patent: July 6, 2021
    Assignee: China Academy of Telcommunications Technology
    Inventors: Qianqian Si, Xuejuan Gao, Xueming Pan, Jiaqing Wang
  • Patent number: 11038642
    Abstract: A method and a device for determining dynamically a pilot pattern are provided. The method includes acquiring a TTI duration occupied by transmission of data, and determining a pilot pattern according to the TTI duration occupied by the transmission of the data.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: June 15, 2021
    Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Xuejuan Gao, Fangchen Cheng, Xueming Pan
  • Publication number: 20210176018
    Abstract: The present disclosure provides a data transmission method and device, and relates to the technical field of communications. The data transmission method is applied to the data transmission device and includes: determining a transmission type used when performing data transmission, where the transmission type includes one of a single transmission of target data in one slot and multiple repetitive transmissions of target data in one slot; determining the number of repetitive transmissions of the target data in each slot, when the transmission type is multiple repetitive transmissions of target data in one slot; transmitting the target data according to the number of repetitive transmissions of the target data in each slot.
    Type: Application
    Filed: March 6, 2019
    Publication date: June 10, 2021
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Wei BAI, Xuejuan GAO, Deshan MIAO
  • Publication number: 20210160024
    Abstract: The present invention relates to the technical field of communications, and specifically relates to an uplink transmission method, terminal, and base station, used for providing a pilot frequency transmission solution for a terminal supporting an CP-OFDM waveform, and comprising: a terminal determines a frequency domain starting position of a pilot frequency, the terminal being a terminal using CP-OFDM to perform uplink transmission; on the basis of a comb-type interval and the determined frequency domain starting position, mapping the pilot frequency onto a transmission pilot frequency symbol; and sending the pilot frequency mapped onto the symbol to a base station.
    Type: Application
    Filed: February 2, 2018
    Publication date: May 27, 2021
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Xuejuan GAO, Xueming PAN
  • Publication number: 20210160855
    Abstract: The present application discloses a method and an apparatus for transmitting uplink control information (UCI), to resolve the issue of repeated transmissions of UCI in the prior art. In an embodiment of the present application, a terminal determines a bit sequence of coded UCI of a first transmission, the UCI being repeatedly transmitted on a PUCCH, and the terminal transmits the bit sequence of the coded UCI in a determined uplink channel in each subsequent retransmission of the UCI. A network side apparatus uses the same method to determine a bit sequence of coded UCI of a first transmission, and receives, via a determined uplink channel, a repeatedly transmitted bit sequence of the coded UCI. In the embodiments of the present application, a bit sequence of coded UCI is determined according to a channel of the UCI in a first transmission time slot.
    Type: Application
    Filed: February 27, 2019
    Publication date: May 27, 2021
    Applicant: China Academy of Telecommunications Technology
    Inventors: Xuejuan GAO, Ekpenyong TONY
  • 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