Patents by Inventor Ingemar Backlund

Ingemar Backlund 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).

  • Publication number: 20180255485
    Abstract: The present disclosure relates to a method in a mobile station for base station change from a source base station to a target base station in a cellular radio network. The base station transfers packet switched communications between the mobile station and the network, and the method comprises receiving a handover command message from the source base station at the mobile station. The method further comprises transmitting in a target cell a message to the network providing a downlink sequence number status for a packet flow subject to lossless packet switched handover implicitly acknowledging downlink packets received by the mobile station.
    Type: Application
    Filed: May 7, 2018
    Publication date: September 6, 2018
    Inventors: Lars Tedenvall, Gunnar Mildh, John Diachina, Ingemar Backlund
  • Patent number: 9998958
    Abstract: A mobile station (MS) and method for base station handover from a source cell of a source base station to a target cell of a target base station in a packet-switched cellular radio network. While the MS is still in the source cell, the MS receives from the network, a handover command message and information regarding a next expected uplink packet for a packet flow subject to lossless packet-switched handover. Upon arrival of the MS in the target cell, the MS transmits an uplink sequence number status message to the target base station providing a downlink sequence number status for the packet flow, and starts uplink data transmission to the target base station beginning with the next expected uplink packet.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: June 12, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Ingemar Backlund, Gunnar Mildh, John Diachina, Lars Tedenvall
  • Publication number: 20140153541
    Abstract: A mobile station (MS) and method for base station handover from a source cell of a source base station to a target cell of a target base station in a packet-switched cellular radio network. While the MS is still in the source cell, the MS receives from the network, a handover command message and information regarding a next expected uplink packet for a packet flow subject to lossless packet-switched handover. Upon arrival of the MS in the target cell, the MS transmits an uplink sequence number status message to the target base station providing a downlink sequence number status for the packet flow, and starts uplink data transmission to the target base station beginning with the next expected uplink packet.
    Type: Application
    Filed: October 24, 2013
    Publication date: June 5, 2014
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Ingemar Backlund, Gunnar Mildh, John Diachina, Lars Tedenvall
  • Patent number: 8599786
    Abstract: The present invention relates to change of base stations transferring packet switched communications between a mobile station and a support node. The base station change is of lossless type allowing lossless base station change of packet switched communications in unacknowledged mode between the mobile station and the support node.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: December 3, 2013
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Ingemar Backlund, John Walter Diachina, Gunnar Mildh, Lars Tedenvall
  • Patent number: 7895343
    Abstract: The present invention relates to a method and apparatus for improving the procedures for error detection and recovery in data communication systems and thereby facilitating a better use of data transmission resources. According to the invention, different protocols capable of re-transmission of data are made to communicate with each other in order to avoid that several protocols simultaneously re-transmit the same data towards the same interface. The transmitting entity of a higher layer protocol will, according to the invention, await the result of the transmission of a certain protocol data unit by a lower layer protocol before making the decision of whether or not the transmitting entity of the higher layer protocol should re-transmit the certain protocol data unit.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: February 22, 2011
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventor: Ingemar Backlund
  • Patent number: 7616607
    Abstract: A method ensures that data is not lost during an inter-Routing Area or inter-Network Service Entity cell change in a GPRS network. When a mobile station passes from one cell into another, a command is sent from the SGSN to the BSS serving the first cell, causing that BSS to discard any data awaiting transmission to the mobile station. A reply is sent from the BSS to the SGSN, and, in response thereto, the SGSN transmits data to the BSS serving the new cell, in order to ensure that all of the data intended for the mobile station is transmitted thereto.
    Type: Grant
    Filed: April 10, 2002
    Date of Patent: November 10, 2009
    Assignee: Telefonaktiebolaget L M Ericsson (PUBL)
    Inventors: Ann-Christine Eriksson, Sandra Collins, Ingemar Backlund
  • Publication number: 20080240035
    Abstract: The invention provides a method for fastening a polymeric label to a glass, plastic, or metal container or surface by means of a water based composition containing ac least 30% by dry weight of animal glue; that is activated into an adhesive by the following steps: (a) applying a layer of a hydrophilic solid material based on at least 30% by weight on protein from animal renderings to a polymeric label to form a hydrophilic layer that acts as an adhesive layer when activated with an aqueous medium; (b) applying a low deposition of water, a water based adhesive, water containing a cross-linking agent or an adhesive containing a cross-linking agent to the activatable hydrophilic layer sufficient enough to activate it into an adhesive and form a fastenable polymeric label; (c) fastening the fastenable polymeric label to a glass, plastic or metal container or surface; and (d) allowing the polymeric label to dry on the glass, plastic or metal container or surface.
    Type: Application
    Filed: January 28, 2005
    Publication date: October 2, 2008
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Ingemar Backlund, Gunnar Mildh, John Diachina, Lars Tedenvall
  • Publication number: 20060133315
    Abstract: A method ensures that data is not lost during an inter-Routing Area or inter-Network Service Entity cell change in a GPRS network. When a mobile station passes from one cell into another, a command is sent from the SGSN to the BSS serving the first cell, causing that BSS to discard any data awaiting transmission to the mobile station. A reply is sent from the BSS to the SGSN, and, in resonse thereto, the SGSN transmits data to the BSS serving the new cell, in order to ensure that all of the data intended for the mobile station is transmitted thereto.
    Type: Application
    Filed: April 10, 2002
    Publication date: June 22, 2006
    Inventors: Ann-Christine Eriksson, Sandra Collins, Ingemar Backlund
  • Publication number: 20060059186
    Abstract: The present invention relates to a method and apparatus for improving the procedures for error detection and recovery in data communication systems and thereby facilitating a better use of data transmission resources. According to the invention, different protocols capable of re-transmission of data are made to communicate with each other in order to avoid that several protocols simultaneously re-transmit the same data towards the same interface. The transmitting entity of a higher layer protocol will, according to the invention, await the result of the transmission of a certain protocol data unit by a lower layer protocol before making the decision of whether or not the transmitting entity of the higher layer protocol should re-transmit the certain protocol data unit.
    Type: Application
    Filed: December 20, 2002
    Publication date: March 16, 2006
    Inventor: Ingemar Backlund
  • Publication number: 20040017784
    Abstract: The present invention relates to a method of selective setting of retransmission time-out values in a mobile, radio communication system.
    Type: Application
    Filed: August 19, 2003
    Publication date: January 29, 2004
    Inventor: Ingemar Backlund