Patents by Inventor Mikael Willgert

Mikael Willgert 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 and means for redistribution of subscriber information in umts networks where the nodes are arranged in pools
    Publication number: 20040248592
    Abstract: The present invention relates to method and means for a system initiated subscriber information redistribution in order to achieve a load redistribution within a pool of core network nodes. The subscribers, that are affected by the redistribution, are determined by the bit values in their TMSI's. These specific TMSI's are then arranged to be treated as invalid by the cellular system. Messages etc.
    Type: Application
    Filed: August 2, 2004
    Publication date: December 9, 2004
    Inventors: Klaus Turina, Martin Kaibel, Monica Wifvesson, Ake Ardvisson, Mikael Willgert, Hakan Niska, Kyosti Toivanen
  • Method and means for providing enhanced subscriber identity confidentiality during roming in a cellular radio communication system
    Publication number: 20040052224
    Abstract: The present invention relates to a method and means for roaming in a cellular radio communication system with a pool of core network nodes, e.g. an MSC-pool (201). A Subscriber Identification Service Node (SISN) is used to handle roaming from a service area supported by a previous MSC/VLR (205) in the MSC-pool to a service area supported by a new MSC/VLR (303) arranged outside of the MSC-pool. The SISN (301) receives an identity request from the new MSC/VLR (303) and forwards it to the previous MSC/VLR (205). The SISN receives a response from the previous MSC/VLR and relays it to the new MSC/VLR. This means that the SISN helps the new MSC/VLR (303) to retrieve data from the right MSC/VLR within the MSC-pool (201).
    Type: Application
    Filed: October 2, 2003
    Publication date: March 18, 2004
    Inventors: Ake Arvidsson, Mikael Willgert, Keijo Laiho, Hakan Niska, Kyosti Toivanen