Patents by Inventor Anders Westroos

Anders Westroos 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: 8346242
    Abstract: The present invention overcomes the problem of S1 interface failure by redirecting user equipments to another radio basestation, or another RAT. This redirecting may be on a UE-by-UE basis, i.e. when a connection request is received, redirecting that UE, or may involve redirecting all UEs in a cell by broadcasting modified system information. The redirecting may be such that future traffic load, for example as caused by UEs performing tracking area updates, is minimized, by instructing UEs to redirect after a randomized period of time, or by locking the cell after a randomized period of time, for example. In yet further embodiments of the invention, the cell may be locked after a certain number of connection requests have been received. In this way, particularly busy cells can be locked sooner than would otherwise be the case.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: January 1, 2013
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Anders Westroos, Fredrik Hillström, Peter Ostrup, Stefan Johansson, Walter Müller
  • Publication number: 20110177820
    Abstract: The present invention overcomes the problem of S1 interface failure by redirecting user equipments to another radio basestation, or another RAT. This redirecting may be on a UE-by-UE basis, i.e. when a connection request is received, redirecting that UE, or may involve redirecting all UEs in a cell by broadcasting modified system information. The redirecting may be such that future traffic load, for example as caused by UEs performing tracking area updates, is minimized, by instructing UEs to redirect after a randomized period of time, or by locking the cell after a randomized period of time, for example. In yet further embodiments of the invention, the cell may be locked after a certain number of connection requests have been received. In this way, particularly busy cells can be locked sooner than would otherwise be the case.
    Type: Application
    Filed: October 8, 2008
    Publication date: July 21, 2011
    Inventors: Anders Westroos, Fredrik Hillström, Peter Ostrup, Stefan Johansson, Walter Müller
  • Patent number: 6327472
    Abstract: A radio network handling arrangement handles radio communication in a number of cells in a cellular communication network. The radio network handling arrangement includes a device for assignment of traffic channels and parameter for storing cell parameter information. Signal strength information holding devices are also provided. The arrangement further includes load monitors for holding information about the traffic load in at least a number of cells. The traffic assignment device includes a device for using information about cell parameters and about signal strength measurements for a number of cells to establish if there are any neighboring cells available as cell candidates for a mobile station accessing an access cell. The traffic load information relating to the access cell and such available cells is used in such a way that a load dependent assignment can be performed for a mobile station accessing an access cell.
    Type: Grant
    Filed: November 11, 1999
    Date of Patent: December 4, 2001
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Anders Westroos, Peter Östrup, Nina Kopp, Simon Eneland, Hanna Ekstam
  • Patent number: 6125106
    Abstract: Existing communication connections in a cellular telephone base station can become allocated to communication equipment in a less than optimal fashion. To address this problem a detector identifies when an existing communication connection routed through the base station is terminated. The detector informs a processor which calculates a channel allocation for the remaining communication connections currently routed through the base station which optimizes channel utilization. The optimal channel allocation is then implemented through intra-cell handovers.
    Type: Grant
    Filed: August 22, 1997
    Date of Patent: September 26, 2000
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Peter Ostrup, H.ang.kan Palm, Anders Westroos