Patents by Inventor Renwang LIU

Renwang LIU 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: 20250141843
    Abstract: The present disclosure provides a method (200) performed by a first communication device. The method (200) includes: receiving (210), from a second communication device, an Encapsulating Security Payload, ESP, packet that is an initial fragment; calculating (220), from the ESP packet, a Maximum Transmission Unit, MTU, in a path from the second communication device to the first communication device; and notifying (230) the second communication device of the calculated MTU.
    Type: Application
    Filed: February 22, 2022
    Publication date: May 1, 2025
    Inventors: Daiying Liu, Daniel Migault, Renwang Liu, Congjie Zhang
  • Publication number: 20240380788
    Abstract: Methods and devices for encrypting Network Configuration Protocol (NETCONF) datastore in communication networks are disclosed. One of the methods is performed by a device using NETCONF. The method comprises enabling a function for NETCONF Datastore Security (DS-SEC). The method further comprises publishing a first indication indicating that the device supports the NETCONF DS-SEC function.
    Type: Application
    Filed: August 16, 2021
    Publication date: November 14, 2024
    Inventors: Daiying Liu, Renwang Liu, Min Luo
  • Publication number: 20240171556
    Abstract: Methods and devices for encrypting network time protocol keys in communication networks are disclosed. A method comprises obtaining an original NTP key, obtaining a local encryption key for encrypting the original NTP key, encrypting the original NTP key using the obtained local encryption key and saving the encrypted NTP key.
    Type: Application
    Filed: March 30, 2021
    Publication date: May 23, 2024
    Inventors: Daiying Liu, Renwang Liu, Zhaoyu Ai
  • Publication number: 20230239279
    Abstract: Methods and apparatuses for security communication. A method performed by a first communication device includes determining whether a length of an Internet protocol, IP, datagram is larger than a threshold. The method further includes, when the length of the IP datagram is larger than the threshold, fragmenting the IP datagram into two or more IP packets. The length of each of two or more IP packets is not larger than the threshold and each of the two or more IP packets is filled with fragmentation information. The method further includes processing the two or more IP packets to generate two or more corresponding IP security, IPsec, packets. The method further includes sending the two or more corresponding IPsec packets to a second communication device.
    Type: Application
    Filed: April 17, 2020
    Publication date: July 27, 2023
    Inventors: Daiying LIU, Renwang LIU, Jun WANG