Patents by Inventor Mikael Assarsson

Mikael Assarsson 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).

  • Channel access methods and apparatus in low-power wireless communication systems
    Patent number: 7231221
    Abstract: An access scheme in a communication system can deal with a mix of devices having different power constraints and different latency requirements and allow highly asymmetric latency behavior. Such a communication system may include a central control station that broadcasts beacon messages on a communication channel, such as a radio channel, and at least one remote terminal that accesses a communication channel based on the beacon messages. The beacon messages are configured such that individual access to the communication channel by each terminal is controlled according to a grouping of the terminals into respective beacon groups. Each beacon group may have a corresponding beacon message, and beacon messages corresponding to different beacon groups may be broadcast at staggered time intervals.
    Type: Grant
    Filed: August 26, 2004
    Date of Patent: June 12, 2007
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Mikael Assarsson, Jacobus Haartsen, Jan Aberg
  • Channel access methods and apparatus in low-power wireless communication systems
    Publication number: 20050064818
    Abstract: An access scheme in a communication system can deal with a mix of devices having different power constraints and different latency requirements and allow highly asymmetric latency behavior. Such a communication system may include a central control station that broadcasts beacon messages on a communication channel, such as a radio channel, and at least one remote terminal that accesses a communication channel based on the beacon messages. The beacon messages are configured such that individual access to the communication channel by each terminal is controlled according to a grouping of the terminals into respective beacon groups. Each beacon group may have a corresponding beacon message, and beacon messages corresponding to different beacon groups may be broadcast at staggered time intervals.
    Type: Application
    Filed: August 26, 2004
    Publication date: March 24, 2005
    Inventors: Mikael Assarsson, Jacobus Haartsen, Jan Aberg