Patents by Inventor Xuejin TIAN

Xuejin TIAN 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 determining policy and charging rule function entity
    Patent number: 9661151
    Abstract: Embodiments of the present invention provide a method, an apparatus, and a system for determining a policy and charging rule function entity. The method includes: receiving, by a first PCRF, a first request message transmitted by a first routing agent device, where the first request message carries an IP address of a user; inquiring a pre-stored corresponding relationship between the IP address of the user and an identity of a PCRF currently serving the user according to the IP address of the user, and determining an identity of a second PCRF currently serving the user; and transmitting a message carrying the identity of the second PCRF to the first routing agent device. The method realizes that session information of the same user can be routed to the same PCRF when a biplane DRA is under a multi-PCRF networking, and provides reliable DRA signaling network networking.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: May 23, 2017
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Chunsheng Li, Feng Wu, Xuejin Tian
  • METHOD, APPARATUS AND SYSTEM FOR DETERMINING POLICY AND CHARGING RULE FUNCTION ENTITY
    Publication number: 20140307589
    Abstract: Embodiments of the present invention provide a method, an apparatus, and a system for determining a policy and charging rule function entity. The method includes: receiving, by a first PCRF, a first request message transmitted by a first routing agent device, where the first request message carries an IP address of a user; inquiring a pre-stored corresponding relationship between the IP address of the user and an identity of a PCRF currently serving the user according to the IP address of the user, and determining an identity of a second PCRF currently serving the user; and transmitting a message carrying the identity of the second PCRF to the first routing agent device. The method realizes that session information of the same user can be routed to the same PCRF when a biplane DRA is under a multi-PCRF networking, and provides reliable DRA signaling network networking.
    Type: Application
    Filed: June 24, 2014
    Publication date: October 16, 2014
    Inventors: Chunsheng LI, Feng WU, Xuejin TIAN