Patents by Inventor Yajun Zhao

Yajun Zhao 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).

  • Method, cell and system for implementing air interface synchronization
    Patent number: 10791528
    Abstract: Disclosed is a method for implementing air interface synchronization. The method includes that: a source cell performs signalling interaction with a target cell, and determines whether to be switched off or not according to a signalling interaction result. A content about which the source cell performs signalling interaction with the target cell includes at least one of: on/off state information of the source cell, on/off state information of the target cell, whether the target cell finds a new synchronization source or not, timing at which the source cell enters an off state, candidate synchronization source cell set information of the target cell and associated affiliated target cell information of the target cell. The present disclosure further discloses a cell and system for implementing air interface synchronization.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: September 29, 2020
    Assignee: ZTE CORPORATION
    Inventors: Xiaogang Han, Wei Gou, Yajun Zhao, Feng Bi
  • METHOD AND APPARATUS FOR UPLINK TRANSMISSION IN MULTI-CARRIER SYSTEMS
    Publication number: 20200305148
    Abstract: A method and apparatus for plink carrier selection and uplink transmission in multi-carrier systems is disclosed. In one embodiment, a method performed by a wireless communication device, comprising: receiving a message containing first information of at least one first uplink transmission resource from a wireless communication node; based on the first information, determining at least one power headroom (PH) value for the at least one first uplink transmission resource; and reporting second information of the at least one first uplink transmission resource to the wireless communication node.
    Type: Application
    Filed: May 11, 2020
    Publication date: September 24, 2020
    Inventors: Li NIU, Yajun ZHAO
  • Clear channel assessment detection method and device
    Patent number: 10771986
    Abstract: The present disclosure provides a clear channel assessment detection method and apparatus. The method includes: acquiring a clear channel assessment (CCA) detection pattern or a Muting pattern; and performing a CCA detection to an unlicensed carrier channel on resources corresponding to one of the CCA detection pattern or the Muting pattern.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: September 8, 2020
    Assignee: ZTE CORPORATION
    Inventors: Ling Yang, Wei Gou, Focai Peng, Yajun Zhao, Xincai Li, Feng Bi, Chenchen Zhang
  • CONTROL TRANSMISSION METHOD AND APPARATUS
    Publication number: 20200280358
    Abstract: Methods, systems, and devices related to transmissions of control information to enhance channel coverage are disclosed. In one exemplary aspect, a method for wireless communication includes receiving, from a base station, a control message for scheduling a transmission of control information on a physical channel based on a transmission mode of the physical channel, the control information comprising at least channel state information; and transmitting, based on the control message, one or more redundant versions of the control information on the physical channel using a plurality of adjacent slots or mini-slots in time domain.
    Type: Application
    Filed: May 17, 2020
    Publication date: September 3, 2020
    Inventors: Xincai Li, Yajun Zhao, Hanqing Xu, Ling Yang
  • METHOD AND APPARATUS FOR DETERMINING LBT MODE AND METHOD FOR LBT MODE SWITCHING
    Publication number: 20200281019
    Abstract: The present disclosure provides a method and an apparatus for determining a Listen Before Talk (LBT) mode, as well as a method for LBT mode switching. The method includes: determining (100) an LBT mechanism and/or an LBT mechanism parameter set based on related indication information and/or priority information and/or measurement information; and performing (101), by a transmitting device, contention-based channel access based on the determined LBT mechanism and/or LBT mechanism parameter set. With the present disclosure, an LBT mode can be determined. With the selection of the LBT mode, it is possible to avoid waste of channel resources and indication information due to an improper LBT mode, thereby improving an efficiency of contention-based channel access.
    Type: Application
    Filed: May 18, 2020
    Publication date: September 3, 2020
    Inventors: Ling Yang, Wei Gou, Focai Peng, Feng Bi, Yajun Zhao
  • POWER SHARING METHOD AND APPARATUS
    Publication number: 20200267668
    Abstract: Disclosed is a power sharing method, including: determining a transmit power of a UE on a first carrier and a transmit power of the UE on a second carrier; and receiving first uplink traffic transmitted by the UE on the first carrier according to the transmit power on the first carrier, and receiving second uplink traffic transmitted by the UE on the second carrier according to the transmit power on the second carrier. Further disclosed are a power sharing apparatus, a storage medium, and a processor.
    Type: Application
    Filed: December 16, 2019
    Publication date: August 20, 2020
    Inventors: Hanqing Xu, Yajun Zhao, Xincai Li, Ling Yang, Juan Liu
  • Method for processing listen before talk parameter, method for adjusting contention window and associated apparatuses
    Patent number: 10750538
    Abstract: The embodiments of the present disclosure provide a method for processing an LBT parameter, a method for adjusting a contention window and associated apparatuses. The method for processing an LBT parameter includes: generating, by a first station, an LBT parameter comprising a parameter used by the first station to perform LBT for unlicensed carriers and/or indicating a parameter used by a second station receiving the LBT parameter to perform LBT for the unlicensed carriers; and transmitting, by the first station, the LBT parameter. With the embodiments of the present disclosure, the problem associated with interference due to unlicensed carrier contention by neighboring stations can be solved, such that the interference between the neighboring stations due to unlicensed carrier contention by the neighboring stations can be avoided.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: August 18, 2020
    Assignee: ZTE Corporation
    Inventors: Wei Gou, Feng Bi, Yajun Zhao, Xincai Li, Ling Yang
  • Information processing method, apparatus and system
    Patent number: 10743354
    Abstract: Provided are an information processing method, apparatus and system. The method includes acquiring first information; and performing contention-based access and transmitting a sounding reference signal (SRS) according to the first information, where the first information includes at least one of the followings: a frame structure, a listen-before-talk (LBT) execution position, a SRS transmission position and dedicated indication signaling. The present disclosure solves a collision problem that occurs when a LBT detection position and a SRS transmission position are both on a last OFDM symbol of a subframe in the related art and achieves effects of improving a probability that a UE accesses a channel and increasing SRS transmission opportunities.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: August 11, 2020
    Assignee: ZTE CORPORATION
    Inventors: Ling Yang, Wei Gou, Yajun Zhao
  • Processes for the Preparation of Tezacaftor and Intermediates Thereof
    Publication number: 20200223832
    Abstract: The present invention provides processes for the preparation of Tezacaftor, as well as intermediates useful in the preparation thereof. In particular, processes are provided for the preparation of a compound of Formula (3), and its conversion to Tezacaftor (1).
    Type: Application
    Filed: January 13, 2020
    Publication date: July 16, 2020
    Inventors: Michael R. Emmett, Prabhudas Bodhuri, Yajun Zhao, Eduardo Gustavo Cammisa, Stuart P. Green
  • Crystalline Form of Valbenazine Dibesylate
    Publication number: 20200207761
    Abstract: The present invention provides a novel crystalline form of Valbenazine dibesylate, Valbenazine dibesylate Form APO-I, compositions and processes for the preparation thereof, and the use of this crystalline form in the treatment of hyperkinetic disorders, including tardive dyskinesia.
    Type: Application
    Filed: December 18, 2019
    Publication date: July 2, 2020
    Inventors: Mohammed Abdul Raheem, Yajun Zhao, Minh T. N. Nguyen, Mohamed Ibrahim Zaki, Jenny L. Gerster, Stuart P. Green, Allan W. Rey
  • System and method for generating digital content for a composite camera
    Patent number: 10692260
    Abstract: A method includes: receiving sensor data representing a subject within a field of vision associated with respective ones of a plurality of modular cameras associated with a composite camera and one or more geo-spatial characteristics associated with respective ones of the plurality of modular cameras; determining an arrangement of the composite camera based on the sensor data; generating digital content for respective ones of the plurality of modular cameras based on the sensor data; and generating combined digital content that represents a subject within a field of vision associated with the composite camera based on the digital content and the arrangement of the composite camera, wherein the field of vision associated with the composite camera includes at least some of fields of vision associated with the plurality of modular cameras.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: June 23, 2020
    Assignees: Anhu Huami Information Technology Co., Ltd., Huami Inc.
    Inventors: Kongqiao Wang, Xiao-feng Li, Yajun Zhao, Wang Huang
  • Signal processing method, base station and terminal
    Patent number: 10694515
    Abstract: An information processing method, a corresponding base station and terminal are disclosed. The method includes presetting a subframe structure comprising at least a first time slot and a second time slot, herein the first time slot is used for transmission of a downlink signal; or is idle; or is switched to reception of an uplink signal and schedules transmission of the uplink signal or does not schedule transmission of the uplink signal; or is switched to reception of a signal for only performing reception and measurement of other signals but does not schedule transmission of the uplink signal; and the second time slot is used for reception of an uplink signal and schedules transmission of the uplink signal; or is idle, or is switched to reception of a signal for only performing measurement but does not schedule the uplink signal.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: June 23, 2020
    Assignee: ZTE CORPORATION
    Inventors: Yajun Zhao, Linmei Mo, Hanqing Xu
  • SYSTEMS AND METHODS FOR ROBUST TIME DIVISION MULTIPLEX PATTERNS
    Publication number: 20200196326
    Abstract: A system and method for time division multiplexing using different radio access technologies is disclosed. In one embodiment, a method performed by a first communication node includes: identifying a time division multiplex pattern that associates a plurality of time domain resources with: one of an uplink signal and a downlink signal, and one of at least two radio access technologies; receiving the uplink signal using at least one first associated time domain resource; and transmitting the downlink signal using at least one second associated time domain resource, wherein the plurality of time domain resources are sequential, and wherein at least one first and second associated time domain resources are associated with different radio access technologies.
    Type: Application
    Filed: February 25, 2020
    Publication date: June 18, 2020
    Inventors: Xincai LI, Yajun Zhao, Hanqing Xu, Ling Yang
  • Method and apparatus for channel estimation
    Patent number: 10687328
    Abstract: To facilitate sending a reference signal in a wireless communication environment, a transmitter sends a reference signal in a first time-frequency resource to a user equipment (UE); the transmitter sends data information in a first portion of a second time-frequency resource different from the first time-frequency resource to the UE; and the transmitter excludes data information from being sent in a second portion of the second time-frequency resource. The second portion of the second time-frequency resource is designated for use by another transmitter for sending another reference signal to the UE.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: June 16, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Lei Wan, Xingqing Cheng, Mingyu Zhou, Yajun Zhao
  • DATA TRANSMISSION METHOD AND APPARATUS
    Publication number: 20200186315
    Abstract: Provided are a data transmission method or apparatus. The method includes determining time domain resource information of different carrier signals used for performing data transmission; and sending configuration information to a UE, where the configuration information is used by the UE for determining the time domain resource information of the different carrier signals used for performing the data transmission.
    Type: Application
    Filed: June 15, 2018
    Publication date: June 11, 2020
    Applicant: ZTE CORPORATION
    Inventors: Xincai Li, Yajun Zhao, Hanqing Xu, Ling Yang
  • DATA TRANSMISSION METHOD AND APPARATUS, STORAGE MEDIUM AND PROCESSOR
    Publication number: 20200177341
    Abstract: Provided are a data transmission method and apparatus. The method includes that a first node configures configuration information of each time unit within a transmission period, where the configuration information includes a transmission direction and transmission content in each time unit, that the first node notifies the configuration information to a second node, and that the first node performs data transceiving with the second node according to the configuration information.
    Type: Application
    Filed: May 2, 2018
    Publication date: June 4, 2020
    Inventors: Xincai LI, Yajun ZHAO, Hanqing XU, Ling YANG, Juan LIU
  • Data transmission method and device, and spectrum resource sharing method and device
    Patent number: 10674366
    Abstract: Provided are a data transmission method and device, and a spectrum resource sharing method and device. According to the data transmission method, a first system acquires, from shared spectrum resources, a dedicated resource of the first system and/or a contention resource obtained by the first system based on contention; and the first system transmits data by using the dedicated resource and/or the contention resource.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: June 2, 2020
    Assignee: XI'AN ZHONGXING NEW SOFTWARE CO., LTD.
    Inventors: Ling Yang, Wei Gou, Chenchen Zhang, Liyuan Zhong, Bo Dai, Yajun Zhao
  • DATA TRANSMISSION METHOD AND DEVICE, AND STORAGE MEDIUM
    Publication number: 20200170032
    Abstract: The present invention provides a data transmission method, comprising: sending scheduling information to a terminal on a downlink subframe, wherein the scheduling information is used for scheduling the terminal to transmit uplink data on one or more uplink subframes of an unlicensed carrier; and receiving the uplink data transmitted by the terminal. The present invention provides a technical solution of multi-subframe scheduling in the unlicensed carrier which does not exist in the prior art. The present invention also provides a data transmission device and a storage medium.
    Type: Application
    Filed: March 15, 2017
    Publication date: May 28, 2020
    Inventors: Xincai LI, Yajun ZHAO, Wei GOU, Feng BI
  • Method and apparatus for determining LBT mode and method for LBT mode switching
    Patent number: 10660127
    Abstract: The present disclosure provides a method and an apparatus for determining a Listen Before Talk (LBT) mode, as well as a method for LBT mode switching. The method includes: determining (100) an LBT mechanism and/or an LBT mechanism parameter set based on related indication information and/or priority information and/or measurement information; and performing (101), by a transmitting device, contention-based channel access based on the determined LBT mechanism and/or LBT mechanism parameter set. With the present disclosure, an LBT mode can be determined. With the selection of the LBT mode, it is possible to avoid waste of channel resources and indication information due to an improper LBT mode, thereby improving an efficiency of contention-based channel access.
    Type: Grant
    Filed: March 24, 2018
    Date of Patent: May 19, 2020
    Assignee: ZTE Corporation
    Inventors: Ling Yang, Wei Gou, Focai Peng, Feng Bi, Yajun Zhao
  • UPLINK CARRIER CONFIGURATION
    Publication number: 20200154421
    Abstract: One or more devices, systems, and/or methods for facilitating transmission of a configuration corresponding to an uplink carrier are provided. The configuration may be transmitted to a node. The configuration may be used to identify the uplink carrier. The node may access the uplink carrier responsive to receiving an add instruction. The node may release the uplink carrier responsive to receiving a delete instruction.
    Type: Application
    Filed: January 17, 2020
    Publication date: May 14, 2020
    Inventors: Li Niu, Yajun Zhao