Patents by Inventor Zhi Zhang

Zhi Zhang 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: 11758575
    Abstract: Disclosed in the embodiments of the present disclosure are a wireless communication method, a terminal device and a network device. The method includes a terminal device that determines a first frequency domain resource within a pre-configured resource block (RB) range; and performs interference measurement or received energy measurement over the first frequency domain resource.
    Type: Grant
    Filed: June 1, 2022
    Date of Patent: September 12, 2023
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Zhihua Shi, Wenhong Chen, Zhi Zhang
  • Patent number: 11758131
    Abstract: Methods and apparatuses for applying a deblocking to a coding unit in video pictures. In one aspect, the deblocking is applied to sub-block boundaries in the coding unit and to implicit transform unit boundaries in the coding unit.
    Type: Grant
    Filed: June 9, 2022
    Date of Patent: September 12, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Kenneth Andersson, Rickard Sjöberg, Jacob Ström, Zhi Zhang
  • Patent number: 11751239
    Abstract: The embodiments of the disclosure provide a method for wireless communication and a device, which may select at least one of a random access sequence or a random access resource by use of quality of a signal in a second signal set when a link for a signal in a first signal set is too poor to be available.
    Type: Grant
    Filed: May 28, 2021
    Date of Patent: September 5, 2023
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Zhihua Shi, Wenhong Chen, Zhi Zhang
  • Patent number: 11749985
    Abstract: A method and device for timing in time-varying distance protection based on multiple lines of a tower. The method includes: collecting an instantaneous current value at a time-varying distance protection installation location in the multiple lines of the tower, and acquiring preset parameters; calculating, according to the preset parameters and a multi-line ranging model, a multi-line ranging result; calculating, according to the preset parameters, the multi-line ranging result, and an adaptive calculation model, time of a section-II distance protection action and final time of a section-III distance protection action; and determining, according to the instantaneous current value, the preset parameters, and a cross-line failure auxiliary criterion model, final time of the section-II distance protection action.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: September 5, 2023
    Assignees: CHINA ELECTRIC POWER RESEARCH INSTITUTE, STATE GRID CORPORATION OF CHINA
    Inventors: Zexin Zhou, Tianhua Li, Hong Cao, Yarong Guo, Xingguo Wang, Dingxiang Du, Delin Wang, Pengfei Lv, Zhi Zhang
  • Patent number: 11737150
    Abstract: A wireless communication method includes: sending, by a terminal device, a random access request to a network device on a high frequency uplink carrier or a supplementary uplink (SUL) carrier deployed at a frequency band lower than the high frequency uplink carrier; and acquiring, by the terminal device, a random access response (RAR) sent by the network device in response to the random access request.
    Type: Grant
    Filed: April 21, 2022
    Date of Patent: August 22, 2023
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Wenhong Chen, Zhi Zhang
  • Patent number: 11737053
    Abstract: Embodiments of this application provide a wireless communication method and a device, to improve flexibility in an aspect of paging or an aspect of broadcast message transmission. The method includes: determining, by a network device, a scheme of performing paging or broadcast message transmission to a terminal device, where the determined scheme is one of a first scheme and a second scheme, where in the first scheme, a first parameter set is used for performing paging or broadcast message transmission at a specific frequency point, and in the second scheme, a second parameter set is used for performing paging or broadcast message transmission at a specific frequency point; and performing, by the network device, paging or broadcast message transmission to the terminal device at the specific frequency point according to the determined scheme.
    Type: Grant
    Filed: April 12, 2022
    Date of Patent: August 22, 2023
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Zhihua Shi, Zhi Zhang
  • Patent number: 11733121
    Abstract: A sealing integrity evaluation device for high-temperature and high-pressure casing-cement ring-formation and a method thereof are provided. the device includes: a high-temperature autoclave, a temperature and pressure control system, and a casing-cement-formation combination; wherein the autoclave realizes alternating temperature and pressure during the experiment; the control system monitors, controls and records the temperature and pressure data; the combination simulates a full size or a compact size casing-cement-formation of a well.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: August 22, 2023
    Assignees: Southwest Petroleum University, Engineering Technology Research Institute, Southwest Oil and Gas FieldCompany of Petro China
    Inventors: Zhi Zhang, Duo Hou, Huali Zhang, Yufei Li, You Wu, Lin Zhang, Wei Luo, Chuanlei Wang, Xiankang Zhong, Pengfei Sang
  • Publication number: 20230254869
    Abstract: Provided is a wireless communication method and device. Frequency-domain resource allocation and/or bandwidth part configuration is flexibly performed on a terminal device in conjunction with a synchronous signal block, and the performance of a communication system can be raised. The method comprises: a terminal device receives first information sent by a network device, the first information indicating a reference point; and according to the reference point, the terminal device determines a frequency-domain resource and/or bandwidth part configured by the network device for the terminal device.
    Type: Application
    Filed: April 18, 2023
    Publication date: August 10, 2023
    Inventor: Zhi ZHANG
  • Publication number: 20230247216
    Abstract: An example device for decoding video data includes one or more processors implemented in circuitry and configured t: form first and second prediction blocks using first and second motion vectors and combine the first and second prediction blocks according to BDOF to form a final prediction block. For at least one sample location, the one or more processors are configured to determine that a first predictor for the at least one sample location is outside of a boundary of the first reference picture; determine that a second predictor for the at least one sample location is within a boundary of the second reference picture; set the first predictor equal to the second predictor; and determine a final BDOF value for a sample at the at least one sample location using the first predictor and the second predictor.
    Type: Application
    Filed: January 12, 2023
    Publication date: August 3, 2023
    Inventors: Han Huang, Yao-Jen Chang, Chun-Chi Chen, Marta Karczewicz, Vadim Seregin, Yan Zhang, Zhi Zhang
  • Publication number: 20230240037
    Abstract: A power supply system includes a housing having a top cover with a cutout portion formed near a rear end thereof. The cutout portion is configured to mechanically receive, one at a time, either a first bracket or a second bracket to be coupled to the top cover. The first bracket is configured to accommodate a first power supply component. The second bracket is configured to accommodate a second power supply component of a different type than the first power supply component. Each of the first bracket and the second bracket has a length and/or a width greater than a length and a width, respectively, of the cutout portion. Each of the first power supply component and the second power supply component is either a conventional power supply unit, or a busbar adapter sled configured to electrically connect with a busbar cable that supplies power from a remote power source.
    Type: Application
    Filed: January 27, 2022
    Publication date: July 27, 2023
    Inventors: Yaw-Tzorng TSORNG, Tung-Hsien WU, Chin-Ho KUO, Ren-Zhi ZHANG
  • Publication number: 20230239486
    Abstract: A process for selecting a transform set for a prediction block. The process can be used in both an encoder and a decoder. For example, the process can be used in both an encoder and a decoder for a prediction block that has been predicted from a reference block. In some embodiments, both the prediction block and the reference block are intra blocks.
    Type: Application
    Filed: March 28, 2023
    Publication date: July 27, 2023
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Ruoyang YU, Rickard SJÖBERG, Zhi ZHANG
  • Patent number: 11711712
    Abstract: Disclosed are a measuring method, a base station, and a terminal. The method comprises: a base station transmits to a terminal a switching message of a narrow bandwidth receiving mode, thus instructing the terminal to switch to a specified narrow bandwidth to receive information; when channel state information (CSI) of a downlink channel needs to be measured, the base station schedules the terminal to switch sequentially to at least two different measuring narrow bandwidths to measure a downlink reference signal, where the width of the narrow bandwidth and that of the at least two different measuring narrow bandwidths are less than the width of a system bandwidth. The employment of embodiments of the present invention allows the terminal to flexibly switch between the narrow bandwidth and the system bandwidth, reduces power consumption of the terminal, and implements the measurement of the CSI of the downlink channel at the same time.
    Type: Grant
    Filed: April 29, 2021
    Date of Patent: July 25, 2023
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATION'S CORP., LTD.
    Inventors: Zhi Zhang, Hua Xu, Ning Yang
  • Patent number: 11711773
    Abstract: Embodiments of this application disclose power control method, a terminal device, and a network device. The method includes: sending, by a network device, second information to a terminal device. The second information is used for the terminal device to determine a first downlink reference signal (DL RS) resource group corresponding to a first BWP according to a mapping relationship indicated by the second information, the second information indicates a mapping relationship between a BWP and a DL RS resource group. In the mapping relationship, one DL RS is configured for each BWP, a signal corresponding to a DL RS resource in the first DL RS resource group is used to determine a path loss value used by the terminal device to determine a transmit power for transmitting uplink data to be transmitted, and the first DL RS resource group comprises at least one DL RS resource.
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: July 25, 2023
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Zhihua Shi, Wenhong Chen, Zhi Zhang
  • Publication number: 20230232011
    Abstract: There is provided a method for processing a bitstream. The method comprises determining a value, N, wherein N identifies a number of ordered layer representations, wherein N is greater than or equal to 3 such that the N ordered layer representations comprises a highest layer representation, a second highest layer representation, and a third highest layer representation. The method further comprises determining a value for the highest layer representation. The method comprises, after determining the value for the highest layer representation and before determining a value for the third highest layer representation, determining a value for the second highest layer representation. The method comprises, after determining the value for the second highest layer representation, determining a value for the third highest layer representation.
    Type: Application
    Filed: January 27, 2021
    Publication date: July 20, 2023
    Applicant: Talefonaktiebolaget LM Ericsson (publ)
    Inventors: Rickard SJÖBERG, Martin PETTERSSON, Mitra DAMIGHANIAN, Jacob STROM, Zhi ZHANG, Jack ENHORN, Ruoyang YU, Du LIU
  • Patent number: 11702582
    Abstract: A biochemical viscosity reducer for heavy oil and a preparation method thereof. The viscosity reducer includes: Brevibacillus borstelensis-fermented mixed lipopeptide solution: 30 to 60 parts; compound biological enzyme: 15 to 30 parts; plant-based nonionic surfactant: 10 to 20 parts; antibacterial agent: 1 to 5 parts; stabilizer: 1 to 5 parts; and alcohol solvent: 10 to 20 parts; where, the above components are measured by mass. The preparation method includes: step 1: adding 30 to 60 parts of a Brevibacillus borstelensis-fermented mixed lipopeptide solution, 15 to 30 parts of a compound biological enzyme, 10 to 20 parts of a plant-based nonionic surfactant, and 1 to 5 parts of a stabilizer to a reactor; and step 2: adding 1 to 5 parts of an antibacterial agent and an alcohol solvent to the reactor, and stirring a resulting mixture for 60 min to 120 min.
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: July 18, 2023
    Assignee: Yangtze University
    Inventors: Yuehui She, Fan Zhang, Zhi Zhang, Puyong Yao, Fei Li, Hao Dong, Shanshan Sun, Gaoming Yu, Shaojin Yi, Wenda Zhang, Linqi Hu, Yangyang Feng, Anying Zheng, Yang Li
  • Patent number: 11706785
    Abstract: The present disclosure provides a method for transmitting an uplink signal, a terminal device and a network device. The method includes the following steps. The terminal device receives resource configuration information carried by a RRC message. The resource configuration information is used to indicate a plurality of resources configured for zero-power DMRS. The terminal device receives activation information carried by DCI. The activation information is used to indicate: 1) whether to enable the zero-power DMRS; and 2) selecting a resource occupied by the enabled zero-power DMRS in the plurality of resources. The terminal device determines he resource occupied by the zero-power DMRS based on the resource configuration information and the activation information. The resource occupied by the zero-power DMRS is not used for sending uplink data, and the resource occupied by the zero-power DMRS is not used for sending non-zero-power DMRS.
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: July 18, 2023
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Wenhong Chen, Zhi Zhang
  • Publication number: 20230220314
    Abstract: Disclosed herein is a decontaminant aqueous solution for decontaminating diisocyanate drum, including 20-97 wt % of at least one alcohol or derivative thereof, based on the total weight of decontaminant aqueous solution, and an alkaline source in an amount effective to provide the solution a pH of at least 8. Further disclosed herein is a method for decontaminating diisocyanate residues in an emptied drum with the decontaminant aqueous solution.
    Type: Application
    Filed: April 21, 2021
    Publication date: July 13, 2023
    Inventors: Kang HAN, Xiao Qing LV, Zhi Zhong TANG, Xiu Zhi ZHANG, Ying-Hao LIU, Chuan Gang ZHU, Jian Hong LIANG, Hu ZENG
  • Publication number: 20230216608
    Abstract: The embodiments of the present disclosure provide a data retransmission method and an access point device, capable of achieving downlink data retransmission in a multi-AP cooperation scenario, which can reduce the number of downlink data retransmissions and transmission delay, thereby improving user experience. The data retransmission method includes: transmitting, by a first access point device, first request information when the first access point device fails to transmit a first data frame to a station device, the first request information requesting a second access point device to retransmit the first data frame, and the first access point device and the second access point device belonging to one operation set.
    Type: Application
    Filed: March 14, 2023
    Publication date: July 6, 2023
    Inventors: Xuan Niu, Ronghui Hou, Zuomin Wu, Cong Shi, Jun Zhang, Chaoming Luo, Ning Yang, Zhi Zhang
  • Publication number: 20230216610
    Abstract: A joint transmission method, a terminal device, a target network device, and a cooperative network device. The method comprises: a terminal device sends a first data frame to a target network device and at least one cooperative network device, wherein the cooperative network device is used for joint transmission of the first data frame; the terminal device determines, according to feedback of the target network device and/or feedback of the cooperative network device, whether to retransmit the first data frame.
    Type: Application
    Filed: March 10, 2023
    Publication date: July 6, 2023
    Inventors: Haoyuan DU, Ronghui HOU, Zuomin WU, Cong SHI, Jun ZHANG, Ning YANG, Zhi ZHANG
  • Publication number: 20230208378
    Abstract: A kHz to 100 GHz DC coupled circuit with an on-chip integrating capacitor includes an impedance matching structure, an input impedance, an input stage structure and an on-chip capacitor; the impedance matching structure comprises an matching inductor with one end connected to the input terminal and a first matching branch with one end connected to the input terminal, a second matching branch with one end connected to the other end of the matching inductor as well as the other end of the first matching branch, a third matching branch with one end connected to the matching inductor, in which the other ends of the second matching branch and the third matching branch are connected to the input impedance; the first, second and third matching branches are implemented as RLC circuits; or, one or two of the first, second, and third matching branches are break circuits, and the others are RLC circuits.
    Type: Application
    Filed: April 19, 2022
    Publication date: June 29, 2023
    Inventors: Zhi ZHANG, Xianglin XIANG