Patents by Inventor Dewei BAO

Dewei BAO 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: 20210345207
    Abstract: In a terminal roaming steering method, a steering protocol supported by a terminal and a second AP are determined, and the terminal is steered, based on the steering protocol supported by the terminal, to roam from a first AP to the second AP.
    Type: Application
    Filed: April 29, 2021
    Publication date: November 4, 2021
    Inventors: Fuqing Sun, Zhi Ma, Xiaofei Bai, Dewei Bao
  • Publication number: 20210328859
    Abstract: In a forwarding fault location determining method, a controller receives a plurality of table search statistical results of a plurality of forwarding tables for a first service from one or more forwarders. The plurality of forwarding tables include a first forwarding table and a second forwarding table, and the first forwarding table is prior to the second forwarding table in terms of a search sequence. Subsequently, the controller determines that table search behavior of the first forwarding table for the first service is normal and table search behavior of the second forwarding table for the first service is abnormal. The controller determines, based on the determining result, that the second forwarding table is a faulty forwarding table for the first service.
    Type: Application
    Filed: June 29, 2021
    Publication date: October 21, 2021
    Inventors: Zhongyu Wang, Dewei Bao, Liang Zhang, Tao Feng, Zhiping Xu
  • Patent number: 11140022
    Abstract: A network log time alignment method and an apparatus are provided. The method includes: obtaining log data stored in multiple network devices; parsing the log data to obtain features of each network device; determining associated features of the multiple network devices according to the features of each network device, where the associated features are features that are of the network devices and that have an association in space; and then, performing alignment on log time in multiple pieces of log data according to the associated features. Therefore, associated features of related devices of a network fault can be found, and log time are automatically aligned according to the associated features, thereby improving the efficiency and the accuracy of the fault location and sectionalization.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: October 5, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Dewei Bao, Donghong Peng, Yaodong Guan, Shihao Li, Zhiqiang Li
  • Publication number: 20210297305
    Abstract: A fault root cause identification method, apparatus, and device. For a failure flow that occurs when a connectivity fault for access in a network occurs, a target success flow that has a high similarity with the failure flow is determined from a plurality of success flows in the network based on the failure flow. Then, a target fault root cause of the failure flow is obtained based on the failure flow, the target success flow, and a trained first machine learning model. In this way, the target success flow related to the failure flow is determined from the plurality of success flows in the network, and the first machine learning model trained by using a large quantity of success flows and failure flows whose feature indicators are slightly different from each other is used.
    Type: Application
    Filed: June 9, 2021
    Publication date: September 23, 2021
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Xiaoyun SI, Dewei BAO, Liang ZHANG, Zhenhang SUN
  • Publication number: 20210274369
    Abstract: This application provides a network quality monitoring method and apparatus. A network quality monitoring apparatus obtains network running data, where the network running data includes dynamic data corresponding to a plurality of sampling periods and static data that are of an AP; determines one channel efficiency value of the AP based on each of a plurality of groups of dynamic data of the AP, so as to obtain a plurality of channel efficiency values of the AP; determines a channel efficiency baseline of the AP based on the static data of the AP; and determines, based on the plurality of channel efficiency values of the AP and the channel efficiency baseline of the AP, network quality of a wireless local area network in which the AP is located.
    Type: Application
    Filed: May 20, 2021
    Publication date: September 2, 2021
    Inventors: Jun WU, Dewei BAO, Lv DING, Zhenhang SUN, Haonan YE
  • Patent number: 11038587
    Abstract: A method and an apparatus for locating a fault cause are provided. The method includes: obtaining parameter values of a plurality of running parameters and a parameter value of a fault parameter in preset duration before a wavelength division multiplexing board device is faulty; determining a correlation between each of the plurality of running parameters and the fault parameter; and determining at least one target parameter from the plurality of running parameters based on a value of the correlation, where a correlation between each of the at least one target parameter and the fault parameter is greater than a correlation between the fault parameter and a running parameter other than the at least one target parameter in the plurality of running parameters. Accuracy of locating a fault cause can be improved in the embodiments of the present disclosure.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: June 15, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Sheng Jin, Yuming Xie, Dewei Bao, Zhiman Xiong, Yunpeng Gao
  • Publication number: 20210051677
    Abstract: Embodiments of this application disclose a radio frequency resource allocation method, apparatus, device, system, and a storage medium. The method includes: obtaining radio frequency information of an access point AP (for example, RSSI signal strength between the AP and each neighboring AP, and data traffic of the AP in a data collection period), predicting, based on the radio frequency information of the AP, load of the AP that is in target duration after a current moment, and allocating a radio frequency resource to the AP based on the load of the AP. This implementation can reduce actual interference on an entire network and improve user experience.
    Type: Application
    Filed: August 13, 2020
    Publication date: February 18, 2021
    Inventors: Zhenhang Sun, Dewei Bao, Qikun Wei, Xiaofei Bai
  • Publication number: 20210042270
    Abstract: An alarm log compression method, apparatus, system, and a storage medium are provided. The method includes: obtaining a historical alarm log set generated by a first network device; dividing the historical alarm log set into a plurality of historical alarm log subsets based on a generation time stamp of a historical alarm log in the historical alarm log set, where all historical alarm logs in each historical alarm log subset are consecutive in a time sequence; determining a correspondence between an alarm type in the historical alarm log set and the plurality of historical alarm log subsets; performing clustering processing on the alarm types in the historical alarm log set based on the correspondence, to generate at least one association rule; and compressing to-be-processed alarm logs based on the at least one association rule, to obtain an alarm log whose alarm type is a root cause alarm type.
    Type: Application
    Filed: October 22, 2020
    Publication date: February 11, 2021
    Inventors: Jiyuan SHI, Liang ZHANG, Shihao LI, Dewei BAO, Jian LI
  • Publication number: 20200204253
    Abstract: A method and an apparatus for locating a fault cause are provided. The method includes: obtaining parameter values of a plurality of running parameters and a parameter value of a fault parameter in preset duration before a wavelength division multiplexing board device is faulty; determining a correlation between each of the plurality of running parameters and the fault parameter; and determining at least one target parameter from the plurality of running parameters based on a value of the correlation, where a correlation between each of the at least one target parameter and the fault parameter is greater than a correlation between the fault parameter and a running parameter other than the at least one target parameter in the plurality of running parameters. Accuracy of locating a fault cause can be improved in the embodiments of the present invention.
    Type: Application
    Filed: February 28, 2020
    Publication date: June 25, 2020
    Inventors: Sheng JIN, Yuming XIE, Dewei BAO, Zhiman XIONG, Yunpeng GAO
  • Publication number: 20190288904
    Abstract: A network detection method and apparatus are provided. The method includes: obtaining parsed data of one or more target network performance indicators, where the parsed data of each target network performance indicator includes measured values corresponding to the target network performance indicator at a plurality of collection time points; analyzing the parsed data, to obtain a plurality of data sequences, where each data sequence includes a plurality of measured values corresponding to a target network performance indicator; determining an abnormal collection time point or an abnormal data sequence based on the plurality of data sequences; and determining that a network performance indicator corresponding to the abnormal collection time point or the abnormal data sequence is an abnormal network performance indicator.
    Type: Application
    Filed: June 5, 2019
    Publication date: September 19, 2019
    Inventors: Kang Cheng, Jian Li, Dewei Bao, Jun Wu, Donghong Peng
  • Publication number: 20190251093
    Abstract: A data processing device determines, based on a plurality of logs of a same log type, a log template of the log type (i.e. a parsing rule), and extracts, based on the log template, variables of the plurality of logs to generate a structured log so that the parsing rule does not need to be manually set, and manual maintenance on the parsing rule is not needed. A data processing method includes obtaining a log set; determining that N logs in the log set belong to a first type; determining based on the N logs, a log template corresponding to the first type, where the log template corresponding to the first type is used to indicate a variable location of the N logs; and extracting based on the variable location, variables from one or more logs in the N logs to generate a structured log.
    Type: Application
    Filed: April 26, 2019
    Publication date: August 15, 2019
    Inventors: Dewei Bao, Yuming Xie, Shihao Li, Jian Li, Kang Cheng
  • Publication number: 20180367367
    Abstract: A network log time alignment method and an apparatus are provided. The method includes: obtaining log data stored in multiple network devices; parsing the log data to obtain features of each network device; determining associated features of the multiple network devices according to the features of each network device, where the associated features are features that are of the network devices and that have an association in space; and then, performing alignment on log time in multiple pieces of log data according to the associated features. Therefore, associated features of related devices of a network fault can be found, and log time are automatically aligned according to the associated features, thereby improving the efficiency and the accuracy of the fault location and sectionalization.
    Type: Application
    Filed: August 24, 2018
    Publication date: December 20, 2018
    Inventors: Dewei BAO, Donghong PENG, Yaodong GUAN, Shihao LI, Zhiqiang LI