Patents by Inventor Ingrid Norstrand

Ingrid Norstrand 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).

  • Authentication of termination messages in telecommunications system
    Patent number: 7046992
    Abstract: An authentication mechanism renders a communications network impervious to unauthorized requests for interaction termination or cessation. In a release authentication mode of operation, the authentication mechanism protects against an unauthorized connection release message directed to a mobile node (30) of the network, e.g., a mobile station such as a user equipment unit, thereby thwarting an attempt to request an unauthorized connection release procedure concerning a connection involving the mobile node. In a detach authentication mode of operation, the authentication mechanism protects against an unauthorized detach message deceptively transmitted on behalf of a mobile node, thereby thwarting an attempt to request an unauthorized detach procedure for the mobile node. In its modes of operation, the authentication mechanism involves a first node (Ni) of the communications network at which authentication key is provided.
    Type: Grant
    Filed: April 2, 2002
    Date of Patent: May 16, 2006
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Pontus Wallentin, Per Elmdahl, Ingrid Norstrand
  • Authentication of termination messages in telecommunications system
    Publication number: 20030003895
    Abstract: An authentication mechanism renders a communications network impervious to unauthorized requests for interaction termination or cessation. In a release authentication mode of operation, the authentication mechanism protects against an unauthorized connection release message directed to a mobile node (30) of the network, e.g., a mobile station such as a user equipment unit, thereby thwarting an attempt to request an unauthorized connection release procedure concerning a connection involving the mobile node. In a detach authentication mode of operation, the authentication mechanism protects against an unauthorized detach message deceptively transmitted on behalf of a mobile node, thereby thwarting an attempt to request an unauthorized detach procedure for the mobile node. In its modes of operation, the authentication mechanism involves a first node (Ni) of the communications network at which authentication key is provided.
    Type: Application
    Filed: April 2, 2002
    Publication date: January 2, 2003
    Applicant: Telefonaktiebolaget LM Ericsson (publ).
    Inventors: Pontus Wallentin, Per Elmdahl, Ingrid Norstrand