Patents by Inventor Zhang Dajiang

Zhang Dajiang 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).

  • Patent number: 7979901
    Abstract: The invention provides a system and method for controlling the number of Internet Protocol Security (IPsec) security associations per Internet Key Exchange (IKE) security association for a single user. The limit on the number of security association (SA) tunnels per key management protocol SA may be stored in a server. A user equipment sends a request, to the server, to set up a new SA. The server, upon receiving the request, checks whether the limit on the number of SA tunnels per key management protocol has been reached. The request is accepted when the limit has not yet been reached.
    Type: Grant
    Filed: December 30, 2005
    Date of Patent: July 12, 2011
    Assignee: Nokia Corporation
    Inventor: Zhang Dajiang
  • Publication number: 20070157305
    Abstract: The invention provides a system and method for controlling the number of Internet Protocol Security (IPsec) security associations per Internet Key Exchange (IKE) security association for a single user. The limit on the number of security association (SA) tunnels per key management protocol SA may be stored in a server. A user equipment sends a request, to the server, to set up a new SA. The server, upon receiving the request, checks whether the limit on the number of SA tunnels per key management protocol has been reached. The request is accepted when the limit has not yet been reached.
    Type: Application
    Filed: December 30, 2005
    Publication date: July 5, 2007
    Inventor: Zhang Dajiang