Patents by Inventor Martin Bäckström

Martin Bäckström 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: 9420520
    Abstract: The invention concerns methods, a device and computer program products for simplifying handover back to a restricted local access point from an unrestricted global access point as well as to a device implementing a restricted local access point for provision in a wireless network and a wireless network. In the network a restricted local access point hands over a mobile station to an unrestricted global access point and provides data enabling the restricted local access point to be identified as a candidate access point. A device for simplifying handover back determines that the restricted local access point is a candidate for further handover based on this data and informs the mobile station about the restricted local access point via the unrestricted glob access point. Thereby hand over may be considered also to the restricted local access point in addition to other surrounding access points.
    Type: Grant
    Filed: May 30, 2006
    Date of Patent: August 16, 2016
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Martin Bäckström, Anders Larsson, Thomas Walldeen
  • Publication number: 20140106771
    Abstract: The invention concerns a method of determining output power in a first restricted local access point in a wireless network, a device implementing a restricted local access point, a wireless network as well as a computer program product for determining output power in a restricted local access point. A restricted local access point scans the network for determining broadcasting channels (B1, B2, B3, B5, B6) used by surrounding access points, selects a broadcasting channel (B4, f2) that receives the lowest disturbance by surrounding access points, varies the output power of this channel for obtaining a desired relation to the disturbance and determines if a main disturbing access point is another restricted local access point. If it is, a threshold is set for one of the quantities of the relation, which the quantity is not allowed to pass, the output power is varied for providing the desired relation without said quantity passing said threshold and otherwise another channel is selected.
    Type: Application
    Filed: December 19, 2013
    Publication date: April 17, 2014
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PULB)
    Inventors: Anders Larsson, Thomas Walldeen, Martin Bäckström
  • Patent number: 8228867
    Abstract: The invention concerns methods, a device and computer program products for simplifying handover back to a restricted local access point from an unrestricted global access point as well as to a device implementing a restricted local access point for provision in a wireless network and a wireless network. In the network a restricted local access point hands over a mobile station to an unrestricted global access point and provides data enabling the restricted local access point to be identified as a candidate access point. A device for simplifying handover back determines that the restricted local access point is a candidate for further handover based on this data and informs the mobile station about the restricted local access point via the unrestricted glob access point. Thereby hand over may be considered also to the restricted local access point in addition to other surrounding access points.
    Type: Grant
    Filed: May 30, 2006
    Date of Patent: July 24, 2012
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Martin Bäckström, Anders Larsson, Thomas Walldeen
  • Patent number: 7953396
    Abstract: A method of processing user speech data for transmission to a participant or participants in a Push to talk Over Cellular (PoC) session over a cellular telephone network. The method comprises, detecting an initial period of silence in the initial talk burst of the session, and removing that period of silence from the speech data prior to replaying of the speech data to the or each other participant. These signal processing steps may be carried out at one of the initiating terminal, the receiving terminal, or the IMS core.
    Type: Grant
    Filed: March 4, 2004
    Date of Patent: May 31, 2011
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Martin Bäckström, Anders Larsson
  • Publication number: 20100260139
    Abstract: The invention concerns methods, a device and computer program products for simplifying handover back to a restricted local access point from an unrestricted global access point as well as to a device implementing a restricted local access point for provision in a wireless network and a wireless network. In the network a restricted local access point hands over a mobile station to an unrestricted global access point and provides data enabling the restricted local access point to be identified as a candidate access point. A device for simplifying handover back determines that the restricted local access point is a candidate for further handover based on this data and informs the mobile station about the restricted local access point via the unrestricted glob access point. Thereby hand over may be considered also to the restricted local access point in addition to other surrounding access points.
    Type: Application
    Filed: May 30, 2006
    Publication date: October 14, 2010
    Inventors: Martin Bäckström, Anders Larsson, Thomas Walldeen
  • Publication number: 20100228859
    Abstract: The invention concerns methods, a device and computer program products for simplifying handover back to a restricted local access point from an unrestricted global access point as well as to a device implementing a restricted local access point for provision in a wireless network and a wireless network. In the network a restricted local access point hands over a mobile station to an unrestricted global access point and provides data enabling the restricted local access point to be identified as a candidate access point. A device for simplifying handover back determines that the restricted local access point is a candidate for further handover based on this data and informs the mobile station about the restricted local access point via the unrestricted glob access point. Thereby hand over may be considered also to the restricted local access point in addition to other surrounding access points.
    Type: Application
    Filed: May 30, 2006
    Publication date: September 9, 2010
    Inventors: Martin Bäckström, Anders Larsson, Thomas Walldeen
  • Publication number: 20100167776
    Abstract: A method of determining output power in a first restricted local access point in a wireless network, a device implementing a restricted local access point, a wireless network as well as a computer program product for determining output power in a restricted local access point. A restricted local access point scans the network for determining broadcasting channels used by surrounding access points, selects a broadcasting channel that receives the lowest disturbance by surrounding access points, varies the output power of this channel for obtaining a desired relation to the disturbance and determines if a main disturbing access point is another restricted local access point. If it is, a threshold is set for one of the quantities of the relation, which the quantity is not allowed to pass, the output power is varied for providing the desired relation without said quantity passing said threshold and otherwise another channel is selected.
    Type: Application
    Filed: May 30, 2006
    Publication date: July 1, 2010
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Martin Bäckström, Larsson Anders, Walldeen Thomas
  • Patent number: 6560239
    Abstract: A method and system enables a packet-switched data communication in a wireless communications system to be quickly and easily reestablished after interruption. The computer communications protocol that has been negotiated during the establishment of the packet-switched data communication may be saved upon interruption and later restored. In an exemplary embodiment, a wireless subscriber activates a call-waiting-type service along with an option to retain a packet-switched data communication. Thereafter, the subscriber may be engaged in a data communication on a packet data channel of the wireless communications system. Acceptance of a subsequent incoming, circuit-switched voice call causes the data packet session to be suspended, but the negotiated parameters of the computer communications protocol are saved. After the subscriber terminates the voice call, another data packet session is established with the saved parameters without needing to renegotiate the computer communications protocol parameters.
    Type: Grant
    Filed: July 8, 1998
    Date of Patent: May 6, 2003
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Lars Anders Frid, Göran Leif Andersson, Ulf Ingemar Olsson, Chris Kannas, Martin Bäckström