Patents by Inventor Qingbin Huang

Qingbin Huang 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).

  • Method, apparatus and system for guaranteeing QoS of communication service in NAT scenario
    Patent number: 9686709
    Abstract: A method includes: when a user equipment initiates a communication request, controlling an A-BGF network element to generate proxy SDP information according to calling party SDP information, and replacing the calling party SDP information with the proxy SDP information to establish a connection between the user equipment and a called party; after a connection between both communication parties is successful, instructing a PCRF network element to perform QoS resource reservation; and receiving a NAT-translated-to IP address and a port of the user equipment from the A-BGF network element, and instructing the PCRF network element to update source address information for the QoS resource reservation to the NAT-translated-to IP address and the port of the user equipment. The present invention achieves QoS guarantee of a communication service in a NAT scenario without imposing any special interface requirement on the user equipment.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: June 20, 2017
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Lei Xiao, Qingbin Huang
  • METHOD, APPARATUS AND SYSTEM FOR GUARANTEEING QOS OF COMMUNICATION SERVICE IN NAT SCENARIO
    Publication number: 20140247716
    Abstract: A method includes: when a user equipment initiates a communication request, controlling an A-BGF network element to generate proxy SDP information according to calling party SDP information, and replacing the calling party SDP information with the proxy SDP information to establish a connection between the user equipment and a called party; after a connection between both communication parties is successful, instructing a PCRF network element to perform QoS resource reservation; and receiving a NAT-translated-to IP address and a port of the user equipment from the A-BGF network element, and instructing the PCRF network element to update source address information for the QoS resource reservation to the NAT-translated-to IP address and the port of the user equipment. The present invention achieves QoS guarantee of a communication service in a NAT scenario without imposing any special interface requirement on the user equipment.
    Type: Application
    Filed: May 15, 2014
    Publication date: September 4, 2014
    Applicant: Huawei Technologies Co., Ltd.
    Inventors: Lei Xiao, Qingbin Huang