Patents by Inventor Ke Wang Hemersson

Ke Wang Hemersson 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).

  • Transmission control method in a radio access network implementing an automatic repetition request (ARQ) protocol at the base station
    Patent number: 7457260
    Abstract: A method of controlling the sending of data packets from a Base Station (BS) of a Radio Access Network (RAN) to a UE, where the BS is one of a set of BSs transmitting identical data to the UE and each said data packet has a sequence number. The method comprises implementing at the BS an Automatic Repetition reQuest (ARQ) mechanism for resending data packets erroneously received by the UE and, upon receipt of an ARQ status message from the UE, advancing a transmission window of the BS so that its lower region covers the packet having the highest sequence number for which an ARQ acknowledgement has nor yet been received. Where a single BS is transmitting in the downlink direction, and a soft handover set exists for an uplink reverse channel, downlink sending buffers of the BSs of the soft handover set may be synchronized by the exchange of ARQ messages between BSs.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: November 25, 2008
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Johan Torsner, Raul Söderström, Janne Peisa, Toomas Wigell, Gunnar Bark, Ke Wang Hemersson, Niclas Wiberg
  • Transmission control method in a radio access network implementing an automatic repetition request (aqr) protocol at the base station (aqr)
    Publication number: 20040088641
    Abstract: A method of controlling the sending of data packets from a Base Station (BS) of a Radio Access Network (RAN) to a UE, where the BS is one of a set of BSs transmitting identical data to the UE and each said data packet has a sequence number. The method comprises implementing at the BS an Automatic Repetition reQuest (ARQ) mechanism for resending data packets erroneously received by the UE and, upon receipt of an ARQ status message from the UE, advancing a transmission window of the BS so that its lower region covers the packet having the highest sequence number for which an ARQ acknowledgement has nor yet been received. Where a single BS is transmitting in the downlink direction, and a soft handover set exists for an uplink reverse channel, downlink sending buffers of the BSs of the soft handover set may be synchronized by the exchange of ARQ messages between BSs.
    Type: Application
    Filed: June 5, 2003
    Publication date: May 6, 2004
    Inventors: Johan Torsner, Raul Soderstrom, Janne Peisa, Toomas Wigell, Gunnar Bark, Ke Wang Hemersson, Niclas Wiberg