Patents by Inventor Mathias Eriksson

Mathias Eriksson 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: 7068631
    Abstract: The present invention employs training sequence hopping in a cellular communications system to permit tight frequency reuse by minimizing or avoiding co-channel interference and/or other signal degrading phenomena. During a first portion of a transmission, e.g., a first burst, a first training sequence is used. During a second portion of that transmission, e.g., a second burst, a second different training sequence is used. Different training sequences are used for different portions of the transmission according to a predetermined training sequence hopping pattern and with a predetermined number of training sequences. The portion duration can extend for the length of a burst, for more than one burst, for a speech frame, or for some other time period.
    Type: Grant
    Filed: August 6, 2001
    Date of Patent: June 27, 2006
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Mathias Eriksson, Christofer Lindheimer, Johan Molnö, Claes Tidestav
  • Publication number: 20030026223
    Abstract: The present invention employs training sequence hopping in a cellular communications system to permit tight frequency reuse by minimizing or avoiding co-channel interference and/or other signal degrading phenomena. During a first portion of a transmission, e.g., a first burst, a first training sequence is used. During a second portion of that transmission, e.g., a second burst, a second different training sequence is used. Different training sequences are used for different portions of the transmission according to a predetermined training sequence hopping pattern and with a predetermined number of training sequences. The portion during can extend for the length of a burst, for more than one burst, for a speech frame, or for some other time period.
    Type: Application
    Filed: August 6, 2001
    Publication date: February 6, 2003
    Inventors: Mathias Eriksson, Christofer Lindheimer, Johan Molno, Claes Tidestav
  • Publication number: 20020114311
    Abstract: A method for continuous allocation of real-time (e.g., speech) traffic in a communication system is disclosed, whereby a network allocates, for a timeslot or other medium, a unique radio block for real-time traffic that immediately succeeds a control block (or block otherwise non-allocable for real-time traffic) which is also allocated for that timeslot. The unique radio block is allocated to carry the unit of real-time traffic displaced by the control block, along with the next unit of real-time traffic. The two units of real-time traffic in the allocated radio block are each conveyed in a half-rate mode, while the real-time traffic in a normal radio block is conveyed in a full-rate mode. In this way, the output signals of, for example, a speech codec can be continuously allocated for transmission.
    Type: Application
    Filed: February 16, 2001
    Publication date: August 22, 2002
    Inventors: Sara Mazur, Christofer Lindheimer, Mathias Eriksson