Patents by Inventor Lu Ren

Lu Ren 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: 11514013
    Abstract: A computer-implemented method includes: reading a vector of a first table in a database, the vector including counts of a plurality of keywords in the first table, the plurality of keywords including a first keyword and a second keyword; determining a first custom attribute describing the first table, the first custom attribute having a vector including counts of at least a first portion of the plurality of keywords in the first table; determining a multiplier of the first custom attribute, the multiplier being a number of other tables that reference the first custom attribute; and revising the vector of the first table based on the first custom attribute.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: November 29, 2022
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Liang Lu, Sun Chun Hua, Jian Ling Shi, Yi Yang Ren, Chun Leng
  • Patent number: 11424898
    Abstract: This application discloses a DMRS indicating method, a DMRS receiving method, and an apparatus. The method includes: determining, by a transmit end from a plurality of groups of demodulation reference signal DMRS configuration information, DMRS configuration information corresponding to a current DMRS transmission scheme, and obtaining DMRS indication information based on the DMRS configuration information, where each group of DMRS configuration information includes a plurality of pieces of DMRS configuration information; and sending, by the transmit end, the DMRS indication information. The method and the apparatus provided in this application are implemented to match a plurality of scenarios in NR. This can satisfy a requirement for transmitting more layers of data, and can further reduce indication overheads.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: August 23, 2022
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Xiang Ren, Yong Liu, Lu Rong
  • Patent number: 11397417
    Abstract: A robotic system automatically aligns, and/or tests alignment of, a lens to a digital camera or other workpiece. The system includes an optical target, an intermediate lens and a plurality of collimators peripheral to the intermediate lens to accommodate a wide range of fields of view of the workpieces, without requiring changes in equipment hardware. When manufacturing or testing a workpiece with a relatively narrow field of view, the entire field of view of the workpiece can be filled with a view of the target through the intermediate lens, and the collimators need not be used. However, when manufacturing or testing a camera having a relatively large field of view, the intermediate lens is used to fill a central portion of the field of view with an image of the target, and the collimators are used to fill a remaining portion of the field of view with images of reticles.
    Type: Grant
    Filed: November 23, 2019
    Date of Patent: July 26, 2022
    Assignee: Automation Engineering Inc.
    Inventors: Michael Chiu, Regan Mills, Lu Ren
  • Patent number: 11372736
    Abstract: Managing multiple chain transaction rollback on a native cloud environment in a Kubernetes distributed system which extends API capabilities to build compensate API mappings which are used to reverse the invocation chain and stores the mappings in a key value store. An embodiment of the present invention extracts the reverse invocation chain from a framework of libraries and mapping API to check whether rollback is necessary when a service fails. An embodiment of the present invention executes an entire whole rollback.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: June 28, 2022
    Assignee: International Business Machines Corporation
    Inventors: Yue Wang, Sun Chun Hua, Liang Lu, Yi Yang Ren
  • Publication number: 20210157295
    Abstract: A robotic system automatically aligns, and/or tests alignment of, a lens to a digital camera or other workpiece. The system includes an optical target, an intermediate lens and a plurality of collimators peripheral to the intermediate lens to accommodate a wide range of fields of view of the workpieces, without requiring changes in equipment hardware. When manufacturing or testing a workpiece with a relatively narrow field of view, the entire field of view of the workpiece can be filled with a view of the target through the intermediate lens, and the collimators need not be used. However, when manufacturing or testing a camera having a relatively large field of view, the intermediate lens is used to fill a central portion of the field of view with an image of the target, and the collimators are used to fill a remaining portion of the field of view with images of reticles.
    Type: Application
    Filed: November 23, 2019
    Publication date: May 27, 2021
    Inventors: Michael Chiu, Regan Mills, Lu Ren
  • Patent number: 10356725
    Abstract: An uplink signal transmitting method applied to a carrier aggregation system, comprises: after configuring more than two timing advances, user equipment rate-matching uplink signals and/or uplink channels between which front-to-back symbol overlap will occur in time domain over different uplink carriers, and then transmitting the uplink signals and/or uplink channels, or discarding and then transmitting the uplink signals and/or uplink channels, or transmitting simultaneously.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: July 16, 2019
    Assignee: ZTE CORPORATION
    Inventors: Zhirong Lin, Bo Dai, Lu Ren, Shuqiang Xia
  • Patent number: 9979526
    Abstract: Provided are methods and apparatuses for measuring CSI. The method comprises: a terminal device determining whether a subframe a channel state information interference measurement resource is located on is a downlink subframe; when the subframe where the channel state information interference measurement resource is located is a downlink subframe, the terminal device executing interference measurement by using the channel state information interference measurement resource. By means of the present disclosure, the technical problem is solved that it is difficult to effectively perform the CSI measurement caused when a base station flexibly adjust uplink-downlink configuration in a related technology, thereby achieving the technical effect of improving the data transmission performance of a system.
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: May 22, 2018
    Assignee: ZTE CORPORATION
    Inventors: Weimin Li, Yu Ngok Li, Peng Hao, Lu Ren
  • Publication number: 20180124712
    Abstract: An uplink signal transmitting method applied to a carrier aggregation system, comprises: after configuring more than two timing advances, user equipment rate-matching uplink signals and/or uplink channels between which front-to-back symbol overlap will occur in time domain over different uplink carriers, and then transmitting the uplink signals and/or uplink channels, or discarding and then transmitting the uplink signals and/or uplink channels, or transmitting simultaneously.
    Type: Application
    Filed: December 27, 2017
    Publication date: May 3, 2018
    Inventors: Zhirong LIN, Bo DAI, Lu REN, Shuqiang XIA
  • Patent number: 9537614
    Abstract: The disclosure discloses a method for sending a Hybrid Automatic Repeat Request Acknowledgement (HARQ-ACK) message in a Time Division Duplex (TDD) system and a User Equipment (UE), in order that the UE feeds back the HARQ-ACK message of each downlink serving cell and downlink subframe in Physical Uplink Control Channel (PUCCH) format 1b with channel selection in the TDD system. When there are more than 1 downlink subframes in a downlink subframe window corresponding to an uplink subframe, the feedback mode when the UE feeds back the HARQ-ACK message in format 1b with channel selection is determined through the configuration of the high layer or according to the result about whether the UE receives the Physical Downlink Shared Channel (PDSCH) from a secondary downlink serving cell.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: January 3, 2017
    Assignee: ZTE CORPORATION
    Inventors: Chunli Liang, Bo Dai, Weiwei Yang, Lu Ren
  • Patent number: 9538477
    Abstract: The embodiments of the present invention disclose an uplink power control method, a terminal and a base station, which can adjust or determine uplink transmission power of a terminal on subframes which belong to different subframe groups respectively. The method includes: a base station determining subframe group information, the subframe group information being used by a terminal to determine uplink transmission power adjustment amounts on subframes which belong to different subframe groups; and the base station transmitting the subframe group information to the terminal. A terminal determines uplink transmission power adjustment amounts on subframes which belong to different subframe groups, and determines uplink transmission power on corresponding subframes according to the determined uplink transmission power adjustment amounts on the subframes which belong to the different subframe groups.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: January 3, 2017
    Assignee: ZTE Corporation
    Inventors: Weimin Li, Yu Ngok Li, Lu Ren, Peng Hao, Wenfeng Zhang
  • Publication number: 20160242121
    Abstract: An uplink signal power reduction method applied to a carrier aggregation system, comprises: an UE being configured with multiple timing advances, when symbols in uplink channels carried on different carriers are not aligned in the time domain and symbols on different carriers are overlapped in the time domain, if a sum of the transmission power of each uplink channel of said UE is determined to be bigger than a maximum transmission power configured for said UE, then an eNB instructing said UE to reduce a transmission power of said uplink channels in which symbols are overlapped in the time domain on different carriers.
    Type: Application
    Filed: April 26, 2016
    Publication date: August 18, 2016
    Inventors: Zhirong LIN, Bo DAI, Lu REN, Shuqiang XIA
  • Patent number: 9326250
    Abstract: The present disclosure provides a method for reducing the transmission power of an uplink signal, comprising: performing, by a User Equipment (UE), Component Carrier (CC) grouping on configured uplink CCs; and comparing correspondingly the transmission power of an uplink signal in each CC group with a maximum transmission power configured for the each CC group by an evolved Node B (eNB), and performing a power reduction within the CC group when the comparison result meets an intra-group power reduction condition; and/or comparing the sum of transmission powers of uplink signals in all CC groups with a maximum transmission power configured for the UE by the eNB, when the comparison result meets an inter-group power reduction condition, performing a power reduction between the CC groups. The present disclosure further provides a device for reducing the transmission power of an uplink signal.
    Type: Grant
    Filed: June 6, 2012
    Date of Patent: April 26, 2016
    Assignee: ZTE Corporation
    Inventors: Zhirong Lin, Bo Dai, Bin Yu, Lu Ren
  • Publication number: 20150358139
    Abstract: Provided are methods and apparatuses for measuring CSI. The method comprises: a terminal device determining whether a subframe a channel state information interference measurement resource is located on is a downlink subframe; when the subframe where the channel state information interference measurement resource is located is a downlink subframe, the terminal device executing interference measurement by using the channel state information interference measurement resource. By means of the present disclosure, the technical problem is solved that it is difficult to effectively perform the CSI measurement caused when a base station flexibly adjust uplink-downlink configuration in a related technology, thereby achieving the technical effect of improving the data transmission performance of a system.
    Type: Application
    Filed: December 30, 2013
    Publication date: December 10, 2015
    Inventors: Weimin LI, Yu Ngok LI, Peng HAO, Lu REN
  • Publication number: 20150133179
    Abstract: The embodiments of the present invention disclose an uplink power control method, a terminal and a base station, which can adjust or determine uplink transmission power of a terminal on subframes which belong to different subframe groups respectively. The method includes: a base station determining subframe group information, the subframe group information being used by a terminal to determine uplink transmission power adjustment amounts on subframes which belong to different subframe groups; and the base station transmitting the subframe group information to the terminal. A terminal determines uplink transmission power adjustment amounts on subframes which belong to different subframe groups, and determines uplink transmission power on corresponding subframes according to the determined uplink transmission power adjustment amounts on the subframes which belong to the different subframe groups.
    Type: Application
    Filed: July 23, 2013
    Publication date: May 14, 2015
    Inventors: Weimin Li, Yu Ngok Li, Lu Ren, Peng Hao, Wenfeng Zhang
  • Publication number: 20150085714
    Abstract: The disclosure discloses a method for sending a Hybrid Automatic Repeat Request Acknowledgement (HARQ-ACK) message in a Time Division Duplex (TDD) system and a User Equipment (UE), in order that the UE feeds back the HARQ-ACK message of each downlink serving cell and downlink subframe in Physical Uplink Control Channel (PUCCH) format 1b with channel selection in the TDD system. When there are more than 1 downlink subframes in a downlink subframe window corresponding to an uplink subframe, the feedback mode when the UE feeds back the HARQ-ACK message in format 1b with channel selection is determined through the configuration of the high layer or according to the result about whether the UE receives the Physical Downlink Shared Channel (PDSCH) from a secondary downlink serving cell.
    Type: Application
    Filed: July 21, 2011
    Publication date: March 26, 2015
    Applicant: ZTE CORPORATION
    Inventors: Chunli Liang, Bo Dai, Weiwei Yang, Lu Ren
  • Publication number: 20140369324
    Abstract: An uplink signal sending method applied to a carrier aggregation system, comprises: after configuring more than two timing advances, user equipment rate-matching uplink signals and/or uplink channels between which front-to-back symbol overlap will occur in time domain over different uplink carriers, and then sending the uplink signals and/or uplink channels, or discarding and then sending the uplink signals and/or uplink channels, or sending simultaneously.
    Type: Application
    Filed: December 3, 2012
    Publication date: December 18, 2014
    Applicant: ZTE CORPORATION
    Inventors: Zhirong Lin, Bo Dai, Lu Ren, Shuqiang Xia
  • Publication number: 20140219203
    Abstract: The present disclosure provides a method for reducing the transmission power of an uplink signal, comprising: performing, by a User Equipment (UE), Component Carrier (CC) grouping on configured uplink CCs; and comparing correspondingly the transmission power of an uplink signal in each CC group with a maximum transmission power configured for the each CC group by an evolved Node B (eNB), and performing a power reduction within the CC group when the comparison result meets an intra-group power reduction condition; and/or comparing the sum of transmission powers of uplink signals in all CC groups with a maximum transmission power configured for the UE by the eNB, when the comparison result meets an inter-group power reduction condition, performing a power reduction between the CC groups. The present disclosure further provides a device for reducing the transmission power of an uplink signal.
    Type: Application
    Filed: June 6, 2012
    Publication date: August 7, 2014
    Applicant: ZTE CORPORATION
    Inventors: Zhirong Lin, Bo Dai, Bin Yu, Lu Ren