Patents by Inventor H.ang.kan C. Andersson

H.ang.kan C. Andersson 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: 5633874
    Abstract: A method for obtaining a report from a mobile station on the status of frames comprising an entire message transmitted to the mobile station is disclosed. First, a polling request is sent to the mobile station from a base station. A status report is then sent to the base station. The polling request specifies whether the mobile station should send the status report on a reservation basis (using a reserved frame) or on a contention basis (using an idle frame). The mobile station then transmits a bit map to the communication system to indicate which frames have been correctly received by the mobile station at the point when it received the polling request.
    Type: Grant
    Filed: October 31, 1994
    Date of Patent: May 27, 1997
    Assignee: Telefonaktiebolaget LM Ericsson
    Inventors: John W. Diachina, H.ang.kan C. Andersson, Bengt Persson
  • Patent number: 5604744
    Abstract: A communications system in which information is transmitted in successive time slots grouped into a plurality of superframes which are, in turn, grouped into a plurality of hyperframes. A remote station is assigned to one of the time slots in each of the superframes for paging the remote station, each hyperframe including at least two superframes, and the information sent in the assigned time slot in one superframe in each hyperframe is repeated in the assigned time slot in the other superframe(s) in each hyperframe. Each superframe can include a plurality of time slots used for sending paging messages to remote stations, grouped into a plurality of successive paging frames, and the time slot to which the remote station is assigned is included once in every paging frame. Also, each superframe may include time slots comprising a logical channel for broadcast control information and time slots comprising a logical paging channel.
    Type: Grant
    Filed: October 31, 1994
    Date of Patent: February 18, 1997
    Assignee: Telefonaktiebolaget LM Ericsson
    Inventors: H.ang.kan C. Andersson, John W. Diachina, Bengt Persson, Alex K. Raith, Anthony J. Sammarco, Francois Sawyer
  • Patent number: 5603081
    Abstract: A communications system in which information is transmitted in a plurality of time slots grouped into a plurality of superframes which are, in turn, grouped into a plurality of paging frames. A remote station receives paging messages once in each paging frame.
    Type: Grant
    Filed: November 1, 1993
    Date of Patent: February 11, 1997
    Assignee: Telefonaktiebolaget LM Ericsson
    Inventors: Alex K. Raith, Bengt Persson, Anthony J. Sammarco, Anders C. E. Hoff, John W. Diachina, Joseph E. Turcotte, H.ang.kan C. Andersson, Francois Sawyer, Patrice Marsolais, Roland S. Bodin
  • Patent number: 5577046
    Abstract: A method for obtaining a report from a mobile station on the status of frames comprising an entire message transmitted to the mobile station is disclosed. First, a polling request is sent to the mobile station from a base station. A status report is then sent to the base station. The polling request specifies whether the mobile station should send the status report on a reservation basis (using a reserved frame) or on a contention basis (using an idle frame). The mobile station then transmits a bit map to the communication system to indicate which frames have been correctly received by the mobile station at the point when it received the polling request.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: November 19, 1996
    Assignee: Telefonaktiebolaget LM Ericsson
    Inventors: John W. Diachina, H.ang.kan C. Andersson, Bengt Persson