Patents by Inventor Pengju Tan

Pengju Tan 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).

  • Multicast delay diagnosis method and apparatus
    Patent number: 11032122
    Abstract: A multicast delay diagnosis method is provided, where the method includes sending, by a terminal device, a first domain name resolution request to a network node; receiving a first multicast test address returned by the network node; sending a first multicast test join request to the network node by using the first multicast test address, and recording a time point for sending the first multicast test join request; receiving a first packet returned by the network node, and recording a time point for receiving the first packet; calculating, according to the time point for sending the first multicast test join request and the time point for receiving the first packet, a first delay caused when the terminal device joins a multicast test group of the network node; and determining multicast network quality according to the first delay.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: June 8, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: De Liu, Pengju Tan
  • Multicast Delay Diagnosis Method and Apparatus
    Publication number: 20190140884
    Abstract: A multicast delay diagnosis method is provided, where the method includes sending, by a terminal device, a first domain name resolution request to a network node; receiving a first multicast test address returned by the network node; sending a first multicast test join request to the network node by using the first multicast test address, and recording a time point for sending the first multicast test join request; receiving a first packet returned by the network node, and recording a time point for receiving the first packet; calculating, according to the time point for sending the first multicast test join request and the time point for receiving the first packet, a first delay caused when the terminal device joins a multicast test group of the network node; and determining multicast network quality according to the first delay.
    Type: Application
    Filed: April 25, 2016
    Publication date: May 9, 2019
    Inventors: De Liu, Pengju Tan