Patents by Inventor Liwei Qiu

Liwei Qiu 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: 10582462
    Abstract: According to a synchronization method and apparatus provided in this application, a source station sends location information of the source station; and after obtaining a signal propagation delay that is calculated according to the location information of the source station and location information of a to-be-synchronized station, the to-be-synchronized station performs synchronization with the source station according to a synchronization reference time obtained by subtracting the propagation delay from a receiving time of a first network reference signal received from the source station. It can be learned that, in a process in which the to-be-synchronized station performs synchronization with the source station, the signal propagation delay between the to-be-synchronized station and the source station is used to compensate for the receiving time of the first network reference signal.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: March 3, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Man Wang, Henrik Olofsson, Liwei Qiu
  • Publication number: 20190364123
    Abstract: A resource-push method is disclosed. The method includes obtaining, by a resource-push server, a target relationship chain of a benchmark user; determining at least one relational user of the benchmark user according to the benchmark user and the target relationship chain; and obtaining parameter characteristics of the at least one relational user from a preset database. The method also includes determining a similarity value between each of the at least one relational user and the benchmark user according to the parameter characteristics, or a probability value of each of the at least one relational user according to the parameter characteristics; and determining at least one push user from the at least one relational user according to the similarity value or the probability value, so as to push a target resource to the at least one push user.
    Type: Application
    Filed: August 5, 2019
    Publication date: November 28, 2019
    Inventors: Wenyao GAO, Lingling YI, Peng HE, Liwei QIU
  • Publication number: 20180167900
    Abstract: According to a synchronization method and apparatus provided in this application, a source station sends location information of the source station; and after obtaining a signal propagation delay that is calculated according to the location information of the source station and location information of a to-be-synchronized station, the to-be-synchronized station performs synchronization with the source station according to a synchronization reference time obtained by subtracting the propagation delay from a receiving time of a first network reference signal received from the source station. It can be learned that, in a process in which the to-be-synchronized station performs synchronization with the source station, the signal propagation delay between the to-be-synchronized station and the source station is used to compensate for the receiving time of the first network reference signal.
    Type: Application
    Filed: February 12, 2018
    Publication date: June 14, 2018
    Inventors: Man WANG, Henrik OLOFSSON, Liwei QIU
  • Patent number: 9699769
    Abstract: The present application discloses a method, an apparatus and a system for exchanging common E-RGCH information. The method includes: receiving a common E-RGCH information message of a cell managed by a second RNC, where the common E-RGCH information message is sent by the second RNC; selecting a candidate common E-RGCH receiving neighboring cell set for the UE, where the candidate common E-RGCH receiving neighboring cell set includes a neighboring cell with an available common E-RGCH feature and the neighboring cell is determined according to common E-RGCH information message sent by the second RNC; and sending common E-RGCH configuration parameter information of each cell in the candidate common E-RGCH receiving neighboring cell set to the UE.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: July 4, 2017
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Kun Yan, Yanyan Chen, Liwei Qiu, Bingzhao Li
  • Patent number: 9532277
    Abstract: Embodiments of the present invention provide a method and an apparatus for determining a source SGSN. The method for determining a source SGSN includes: obtaining addressing information of a source SGSN through a NAS message sent by a UE; and sending the addressing information of the source SGSN to a target MME or a target SGSN, so that the target MME or the target SGSN determines the source SGSN according to the addressing information of the source SGSN. The embodiments of the present invention may ensure that an MSC obtains latest addressing information of a source SGSN of a UE, so that a target MME or a target SGSN obtains prepare bearer information of the UE from a correct source SGSN.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: December 27, 2016
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Xiaoying Xu, Dong Chen, Liwei Qiu, Xiaobo Wu
  • Publication number: 20150237612
    Abstract: The present application discloses a method, an apparatus and a system for exchanging common E-RGCH information. The method includes: receiving a common E-RGCH information message of a cell managed by a second RNC, where the common E-RGCH information message is sent by the second RNC; selecting a candidate common E-RGCH receiving neighboring cell set for the UE, where the candidate common E-RGCH receiving neighboring cell set includes a neighboring cell with an available common E-RGCH feature and the neighboring cell is determined according to common E-RGCH information message sent by the second RNC; and sending common E-RGCH configuration parameter information of each cell in the candidate common E-RGCH receiving neighboring cell set to the UE.
    Type: Application
    Filed: April 30, 2015
    Publication date: August 20, 2015
    Inventors: Kun Yan, Yanyan Chen, Liwei Qiu, Bingzhao Li
  • Publication number: 20140362827
    Abstract: Embodiments of the present invention provide a method and an apparatus for determining a source SGSN. The method for determining a source SGSN includes: obtaining addressing information of a source SGSN through a NAS message sent by a UE; and sending the addressing information of the source SGSN to a target MME or a target SGSN, so that the target MME or the target SGSN determines the source SGSN according to the addressing information of the source SGSN. The embodiments of the present invention may ensure that an MSC obtains latest addressing information of a source SGSN of a UE, so that a target MME or a target SGSN obtains prepare bearer information of the UE from a correct source SGSN.
    Type: Application
    Filed: August 22, 2014
    Publication date: December 11, 2014
    Inventors: Xiaoying Xu, Dong Chen, Liwei Qiu, Xiaobo Wu