Patents by Inventor Karl Olof Joakim Bergström

Karl Olof Joakim Bergström 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: 8345592
    Abstract: The present invention relates to a method and an arrangement for reducing power consumption in the user equipments in power saving mode in a communication network, comprising a communication network node transmitting information on shared control channels (SCCH) to one or more user equipments. The information is transmitted over either a narrow or a wide bandwidth depending on which mode said one or more user equipments are, either a power saving mode or an active mode.
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: January 1, 2013
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Stefan Parkvall, Vera Vukajlovic, Gabor Fodor, Muhammad Kazmi, Karl Olof Joakim Bergström, Magnus Lindström, Anders Furuskär
  • Patent number: 8085697
    Abstract: An object of the present invention is to provide an improved real-time application performance for user equipments. The object is achieved by a method for bi-casting real time data packets in a mobile system node. The node is comprised in a mobile system, which mobile system comprises an old Node-B and a new Node-B. The old Node-B and the new Node-B are adapted to be connected to the node. The mobile system further comprising a user equipment 130 adapted for switching the receipt of real time data packets from the old Node-B to the new Node-B. The method comprises the steps of associating a first sequence number with a first real time data packet adapted to be sent to the old Node-B, and associating a second sequence number with the same first real time data packet adapted to be sent to the new Node-B. The second sequence number is different from the first sequence number.
    Type: Grant
    Filed: May 2, 2006
    Date of Patent: December 27, 2011
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Karl Olof Joakim Bergström, Per Beming
  • Patent number: 7769010
    Abstract: A retransmission correction performed by counting means provided in a controlling radio network controller (RNC) within a radio access network in the counting of multimedia service joined mobile terminals located in a cell for a PTP/PTM transmission decision, in the case of a repetition of a multimedia service session. The retransmission correction uses an estimated number of the mobile terminals having received a previous transmission of said multimedia service session from any radio network controller.
    Type: Grant
    Filed: June 14, 2005
    Date of Patent: August 3, 2010
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Peter Hans Edlund, Karl Olof Joakim Bergström
  • Publication number: 20100067418
    Abstract: The present invention relates to a method and an arrangement for reducing power consumption in the user equipments in power saving mode in a communication network, comprising a communication network node transmitting information on shared control channels (SCCH) to one or more user equipments. The information is transmitted over either a narrow or a wide bandwidth depending on which mode said one or more user equipments are, either a power saving mode or an active mode.
    Type: Application
    Filed: October 18, 2007
    Publication date: March 18, 2010
    Inventors: Stefan Parkvall, Vera Vukajlovic, Gabor Fodor, Muhammad Kazmi, Karl Olof Joakim Bergström, Magnus Lindström, Anders Furuskär
  • Publication number: 20090325580
    Abstract: A method is described of assigning to a user equipment one or more idle gap patterns in uplink and/or downlink communications between the user equipment and a radio base station, to allow the user equipment to perform downlink measurements on neighbour cells during the idle gaps. The method comprises defining a pre-assigned idle gap pattern; and modifying the pre-assigned idle gap pattern on the basis of one or more short commands sent between the user equipment and the radio base station.
    Type: Application
    Filed: October 11, 2007
    Publication date: December 31, 2009
    Inventors: Muhammad Ali Kazmi, Andras Racz, Karl Olof Joakim Bergström, Janne Peisa
  • Patent number: 6822948
    Abstract: In a mobile communication network (SYS) data transmission between a radio base station (RBS) and a subscriber station (UE) is carried out by successively transmitting frames. The radio network controller (RNC) inserts at the beginning of the respective frames an indicator flag (MOP) indicating to the subscriber stations (UE) whether the frame or a succeeding frame contains data which must be read and decoded by the subscriber stations (UE). The subscriber station can by reading and decoding the indicator flag (MOP) determine that there is no necessity to read data from the present frame or a succeeding frame and can therefore use the time period of one or more frames to save network resources or to perform inter-frequency measurements on another frequency. The invention finds particular application in a WCDMA mobile communication system.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: November 23, 2004
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Karl Olof Joakim Bergström, Thomas Rimhagen