Patents by Inventor Sten Hermansson

Sten Hermansson 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: 6094581
    Abstract: A server for use by a designated one of a number of mobile units in a cellular communications system including a plurality of cells having different service areas with respect to one another may be selected by, for each of the mobile units, assigning to each cell a category of preference for selection with respect to each other cell within the system, wherein for at least one of the cells, the assigned category of preference associated with a first mobile unit is different from the assigned category of preference associated with a second mobile unit. Then, for the designated mobile unit, the assigned category of preference for each of a number of candidate cells is determined. A first one of the candidate cells is then selected as serving cell for the designated mobile unit based upon whether the first one of the candidate cells has a higher category of preference than another of the candidate cells.
    Type: Grant
    Filed: June 10, 1997
    Date of Patent: July 25, 2000
    Assignee: Telefonaktiebolaget LM Ericsson
    Inventors: Tomas Fried, Erik Westerberg, Sten Hermansson
  • Patent number: 5930721
    Abstract: A telecommunications system and method is disclosed, whereby a packet switched system emulates the location algorithm of a circuit switched system. The packet switched system, wherein cell reselection is performed primarily by the mobile stations, has advanced locating and flexible cell reselection capabilities that cause the packet switched traffic to behave (from a control standpoint) virtually the same, with respect to cell reselection and locating, as the circuit switched traffic. In other words, the packet switched mobile terminals are able to emulate the locating functions of the circuit switched system, which minimizes signal interference between the two systems.
    Type: Grant
    Filed: February 18, 1997
    Date of Patent: July 27, 1999
    Assignee: Telefonaktiebolaget L M Ericsson
    Inventors: Tomas Fried, Erik Westerberg, Sten Hermansson