Patents by Inventor Yajun Zhu

Yajun Zhu 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: 20240147461
    Abstract: A carrier scheduling method and a device are disclosed. The carrier scheduling method includes: sending a configuration message of a scheduled carrier group to a user equipment UE; and sending, to the UE, an association relationship between the scheduled carrier group and a scheduling carrier corresponding to the scheduled carrier group. The configuration message of the scheduled carrier group and the association relationship are configured to instruct the UE to determine the scheduled carrier group and the scheduling carrier.
    Type: Application
    Filed: March 18, 2021
    Publication date: May 2, 2024
    Applicant: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
    Inventor: Yajun ZHU
  • Publication number: 20240137916
    Abstract: A method for transmitting an uplink signal is performed by a terminal device, and includes: dividing a transmission time of the uplink signal into a plurality of time segments according to a duration; obtaining an open-loop uplink timing advance and a closed-loop uplink timing advance for each time segment, and generating a timing advance for each time segment according to the open-loop uplink timing advance and the closed-loop uplink timing advance for each time segment; and adjusting a transmission time of one of the plurality of time segments of the uplink signal according to a corresponding timing advance for the one of the plurality of time segments.
    Type: Application
    Filed: February 23, 2021
    Publication date: April 25, 2024
    Inventor: Yajun ZHU
  • Patent number: 11962414
    Abstract: The present disclosure provides methods and apparatuses for transmitting HARQ feedback information, base stations and terminals. The method includes: determining downlink Hybrid Automatic Repeat reQuest (HARQ) configuration information, where the downlink HARQ configuration information informs at least two preset terminals about transmission configuration information of target downlink control signaling; sending the downlink HARQ configuration information to each of the preset terminals; loading the downlink HARQ feedback information for each of the preset terminals into the target downlink control signaling according to the downlink HARQ configuration information; and sending the target downlink control signaling to each of the preset terminals. In the present disclosure, the base station transmits HARQ feedback information with respect to uplink data transmission from a plurality of terminals through the target downlink control signaling, which saves system signaling overhead.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: April 16, 2024
    Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
    Inventor: Yajun Zhu
  • Patent number: 11963158
    Abstract: A transmission configuration method includes: an access network device determines idle time domain units within a time window of an unlicensed band; the access network device combines the idle time domain units according to a predefined time domain length of a transmission unit to obtain at least one transmission unit, the transmission unit being used for carrying and transmitting a data packet, and the time domain length of the transmission unit being used for indicating the number of the time domain units included in the transmission unit; the access network device sends a scheduling indication to a terminal, the scheduling indication being used for indicating the at least one transmission unit.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: April 16, 2024
    Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
    Inventor: Yajun Zhu
  • Patent number: 11956817
    Abstract: A communication method in an unlicensed spectrum includes: monitoring an occupancy state of an unlicensed spectrum; when a first indication signal sent by a second device occupying the unlicensed spectrum is detected, stopping monitoring the occupancy state of the unlicensed spectrum; and obtaining information included in the first indication signal, and determining a target detection behavior based on the information included in the first indication signal.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: April 9, 2024
    Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
    Inventor: Yajun Zhu
  • Publication number: 20240114513
    Abstract: A low priority uplink information retransmission method, includes: in response to uplink control information (UCI) having a transmission conflict, a base station using scheduling information of high priority UCI to deliver identifier information of low priority UCI to be retransmitted by a terminal in the UCI having the transmission conflict.
    Type: Application
    Filed: December 30, 2020
    Publication date: April 4, 2024
    Applicants: Beijing Xiaomi Mobile Software Co., Ltd., Beijing University of Posts and Telecommunications
    Inventors: Yajun ZHU, Wei HONG, Jialin WU, Yong LI
  • Patent number: 11950224
    Abstract: A resource indication method for an unlicensed spectrum includes: receiving, by a terminal, a scheduling instruction sent by an access network device; and determining, by the terminal, a first time domain resource according to the scheduling instruction, in which the first time domain resource is a time domain resource configured to transmit data, a start position of the first time domain resource is obtained based on a second time domain resource, and the second time domain resource is a time domain resource configured to send the scheduling instruction.
    Type: Grant
    Filed: September 21, 2021
    Date of Patent: April 2, 2024
    Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
    Inventor: Yajun Zhu
  • Publication number: 20240106529
    Abstract: A data transmission method includes: in response to determining that data transmission performed with a terminal by means of a first beam has not ended, and the first beam is unable to continue to provide a service for the terminal, determining a second beam; and switching to the second beam.
    Type: Application
    Filed: December 16, 2020
    Publication date: March 28, 2024
    Applicant: Beijing Xiaomi Mobile Software Co., Ltd.
    Inventor: Yajun ZHU
  • Patent number: 11943069
    Abstract: A data transmission method includes that: a base station transmits a control instruction to a terminal, the control instruction carrying indication information and the indication information indicating multiple resource positions configured for the terminal to transmit feedback data in an unlicensed channel; and the feedback data transmitted by the terminal is received, the feedback data being transmitted by the terminal through at least one resource position among the multiple resource positions in the case of the unlicensed channel being occupied by the terminal.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: March 26, 2024
    Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
    Inventor: Yajun Zhu
  • Patent number: 11943173
    Abstract: A channel indication method and an apparatus thereof are provided. The method is performed by a base station working on an unlicensed spectrum. The method includes that the base station determines one or more first channel detection subbands that pass a channel detection. Additionally, the base station generates a channel indication signal to indicate the one or more first channel detection subbands that pass the channel detection. Furthermore, the base station transmits the channel indication signal to a terminal to determine, based on the channel indication signal, the one or more first channel detection subbands that pass the channel detection.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: March 26, 2024
    Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
    Inventor: Yajun Zhu
  • Publication number: 20240098595
    Abstract: A method and an apparatus for determining handover configuration, and a communication device are provided. The method includes: on the basis of handover configuration information of a target service satellite associated with a cell handover, user equipment (UE) determines handover configuration for performing the cell handover, wherein the UE performs cellular mobile data communication via a satellite signal.
    Type: Application
    Filed: January 21, 2021
    Publication date: March 21, 2024
    Applicant: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
    Inventor: Yajun ZHU
  • Publication number: 20240098731
    Abstract: A data transmission method includes: in response to determining an uplink and downlink transmission conflict in a target time unit, performing downlink data receiving or uplink data sending in the target time unit.
    Type: Application
    Filed: December 11, 2020
    Publication date: March 21, 2024
    Applicant: Beijing Xiaomi Mobile Software Co., Ltd.
    Inventor: Yajun ZHU
  • Patent number: 11937180
    Abstract: Provided are a carrier activation method, apparatus, device and system and a storage medium, and belongs to the technical field of communications. The method includes: wake-up information is received on a predetermined carrier that is a carrier, configured to transmit the wake-up information, in at least two carriers allocated to User Equipment (UE); and the predetermined carrier and at least one other carrier are activated based on the wake-up information, or, at least two other carriers are activated based on the wake-up information, the other carrier(s) being a carrier(s) other than the predetermined carrier in the at least two carriers. According to the present disclosure, the problem that the UE needs to detect the wake-up information on each carrier and determine whether to activate the carrier based on the wake-up information is solved, and the energy consumption of the UE is reduced and the endurance of the UE is improved.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: March 19, 2024
    Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
    Inventor: Yajun Zhu
  • Publication number: 20240088991
    Abstract: Aspects of the disclosure are directed to a method for wireless communication that can include simultaneously transmitting data on a plurality of beams of a satellite.
    Type: Application
    Filed: January 22, 2021
    Publication date: March 14, 2024
    Applicant: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
    Inventor: Yajun ZHU
  • Patent number: 11923989
    Abstract: The present disclosure relates to an uplink feedback method and apparatus, a terminal, a base station and a storage medium. The method includes: monitoring downlink information transmitted by a base station; transmitting uplink feedback information during a configured time window as a feedback to the downlink information, wherein the time window comprises a plurality of transmission units, and the uplink feedback information is transmitted by the terminal on any of the transmission units in the time window.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: March 5, 2024
    Assignee: Beijing Xiaomi Mobile Software Co., Ltd.
    Inventor: Yajun Zhu
  • Patent number: 11917660
    Abstract: A control instruction transmission method includes: in response to an unlicensed channel being occupied successfully, in which the first control instruction carries indication information configured to indicate a first detection parameter at least including a resource location on the unlicensed channel for the base station sending a control instruction; and sending a second control instruction on the resource location.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: February 27, 2024
    Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
    Inventor: Yajun Zhu
  • Publication number: 20240064635
    Abstract: A communication method is performed by a terminal, and includes: determining, according to configuration information, an entrance of the terminal into a power-saving state, wherein the configuration information is determined based on a coverage state of a service satellite of the terminal.
    Type: Application
    Filed: December 28, 2020
    Publication date: February 22, 2024
    Inventor: Yajun ZHU
  • Patent number: 11910383
    Abstract: A data transmission method includes: obtaining data transmission configuration information; determining at least two time-frequency resources according to the data transmission configuration information, the time-frequency resources being used to indicate frequency-domain resources in a time-domain unit; and for each time-frequency resource occupied by user equipment (UE), performing data transmission at a frequency-domain resource location in the time-domain unit indicated by the time-frequency resource.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: February 20, 2024
    Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
    Inventor: Yajun Zhu
  • Patent number: 11909678
    Abstract: The present invention relates to a determination method and device for the size of a downlink control information format. The method includes: determining, according to a length of information bits carried by a downlink control information (DCI) format, a size of the DCI format that needs to be detected by a terminal; and sending the size of the DCI format to the terminal. According to the technical solution, the size of the DCI format is determined by means of the length of the information bits actually to be carried by the DCI format, and the size of the DCI format is related to the length of the information bits actually to be carried by the DCI format, which can prevent the problem of resource waste caused by a DCI format with fixed length in the related art and increase resource utilization.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: February 20, 2024
    Assignee: Beijing Xiaomi Mobile Software Co., Ltd.
    Inventor: Yajun Zhu
  • Publication number: 20240056998
    Abstract: Described herein is a system with a first network element and a second network element. The first network element contains a processor configured to synchronize with the second network element; and maintain synchronization with the second network element. The first network element is a small cell eNB and the second network element is one of the following: a macro cell enhanced node-B (eNB); or a small cell eNB.
    Type: Application
    Filed: October 23, 2023
    Publication date: February 15, 2024
    Inventors: Hua Xu, Shiwei Gao, Yajun Zhu, Zhijun Cai, Chandra Sekhar Bontu, Yi Song