Patents by Inventor Kimmo Hittunen

Kimmo Hittunen 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: 8374607
    Abstract: The technology involves data processing during intra-site handover procedures. At least two directional antennas of a base station receive user data carrying signals originating from a mobile units positioned in an intra-site handover area defined by the overlapping radio coverage of the antennas. The directional antennas performs an initial data signal detection of the received data signals resulting in detected user data, which typically results in a loss of radio performance of the antenna. The detected user data from the directional antennas is then jointly processed to generate processed user data. The performance loss is compensated by providing differential antenna gain of the directional antennas within the handover area. As a result, a similar radio coverage in this area as prior art solutions is obtained but with a less complex antenna-related design.
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: February 12, 2013
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Bo Hagerman, Fredrik Ovesjö, Björn Gunnar Johannisson, Kimmo Hittunen
  • Publication number: 20090023447
    Abstract: The invention involves data processing during intra-site handover procedures. At least two directional antennas of a base station receive user data carrying signals originating from a mobile units positioned in an intra-site handover area defined by the overlapping radio coverage of the antennas. The directional antennas performs an initial data signal detection of the received data signals resulting in detected user data, which typically results in a loss of radio performance of the antenna. The detected user data from the directional antennas is then jointly processed to generate processed user data. The performance loss is compensated by providing differential antenna gain of the directional antennas within the handover area. As a result, a similar radio coverage in this area as prior art solutions is obtained but with a less complex antenna-related design.
    Type: Application
    Filed: June 30, 2004
    Publication date: January 22, 2009
    Inventors: Bo Hagerman, Fredrik Ovesjo, Bjorn Gunnar Johannisson, Kimmo Hittunen