Patents by Inventor Yrjö Keränen

Yrjö Keränen 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).

  • Network-based method and system for determining a location of user equipment in CDMA networks
    Patent number: 7254401
    Abstract: A method and system for determining a location of a user equipment using RTT measurements from a connected node B and RTT measurement of other node Bs which are not connected to the user equipment. The radio network controller of a network measures RTT of a connected node Bs and then measures RTT of non connected node Bs. Based on the RTT measurement, the distances of the user equipment from each node B is determined. Circles having radii equal to the distances of the user equipment from the nodes are used to determine the user equipment location.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: August 7, 2007
    Assignee: Nokia Corporation
    Inventors: Yrjö Keränen, Timo Viero