Patents by Inventor Lars Dalsgaard

Lars Dalsgaard 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: 20060068780
    Abstract: A method for providing mobility control information to a communications device includes determining, for a transceiver device of a communication system, mobility control information of at least one further transceiver device and broadcasting system information from the transceiver device on a basic broadcast control channel, wherein the system information comprises the mobility control information of the at least one further transceiver device.
    Type: Application
    Filed: November 29, 2004
    Publication date: March 30, 2006
    Inventors: Lars Dalsgaard, Antti Kangas
  • Publication number: 20050186984
    Abstract: A method for performing cell re-selection in a cellular network includes a subscriber terminal measuring received powers of neighbour cells in accordance with system information received from a current cell, selecting one of the neighbour cells as a new cell, the subscriber terminal receiving a part of the system information sent by the new cell, calculating the time used for receiving the system information of the new cell by employing the length information in the system information part sent by the new cell, and deciding whether to continue the re-selection of said new cell on the basis of the calculated time.
    Type: Application
    Filed: April 20, 2005
    Publication date: August 25, 2005
    Inventors: Antero Lundell, Lars Dalsgaard
  • Patent number: 6792284
    Abstract: A method and arrangement is provided for controlling cell reselection by a terminal of a cellular radio system, in particular where the terminal is connected to a special service, such as a General Packet Radio Service. A base station transmits information to the terminal about whether the terminal may try cell reselection when required. This information is transmitted in the signaling message of a certain service, such as the GPRS service. A terminal connected to the certain service obtains information about whether it may directly change the serving base station to another base station offering a corresponding service, without temporarily accessing the signaling function of a lower level system. Cell reselection is facilitated such that loading on the terminal and on radio signaling is as low as possible.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: September 14, 2004
    Assignee: Nokia Mobile Phones Ltd.
    Inventors: Lars Dalsgaard, Antero Lundell
  • Patent number: 6546251
    Abstract: The invention pertains to an improved method and arrangement for cell selection performed by a mobile station in a cellular radio system. Particularly the invention pertains to cell selection in a situation where the mobile station is connected to a special service such as the GPRS (General Packet Radio Service) offered by the current cell. An essential idea of the invention is that a base station sends to the mobile station information about whether the base station of a neighbouring cell offers the same service. This information is sent preferably in a signalling message of a certain service, such as the PSI3 message of the GPRS system (70) or in a system information SI message of a lower-level service, e.g. in a SI3 message. The mobile station changes serving base stations directly, without having to use lower-level system signalling (72) in between.
    Type: Grant
    Filed: September 15, 1999
    Date of Patent: April 8, 2003
    Assignee: Nokia Mobile Phones Ltd.
    Inventors: Lars Dalsgaard, Antero Lundell
  • Publication number: 20020068574
    Abstract: A mobile station such as a telephone handset (1) for a mobile radio telecommunications system, is operable in different, user selectable configurations for which radio transmissions are made with different frequencies or signal formats so that the user can roam from a home network (PLMN A) to a another network (PLMN B) which operates in a different configuration to the HPLMN. The handset (1) includes a controller (8) to cause a search to be made for transmissions corresponding to a plurality of the different configurations when a configuration for a roamed network has been selected by the user so as to enable the handset to find the HPLMN when returning to the network coverage area of the HPLMN.
    Type: Application
    Filed: July 18, 2001
    Publication date: June 6, 2002
    Applicant: Nokia Mobile Phones Limited
    Inventors: Peter Vestergaard, Lars Dalsgaard, Sami Jutila
  • Publication number: 20020036995
    Abstract: The invention relates to an improved method and arrangement for controlling a cell change performed by a terminal of a cellular radio system. In particular the invention relates to a cell change in a situation where the terminal is connected to a special service provided by its current cell, e.g. to the GPRS service (General Packet Radio Service). An essential idea of the invention is that in conjunction with a cell change order a base station sends to the terminal information about whether the terminal is allowed not to carry out the cell change order if the terminal does not know the timing information of the new cell assigned to it. This information is advantageously sent in a signalling message of a certain service, such as the GPRS service. It is an advantage of the invention that a terminal connected to a certain service will not make unnecessary cell change attempts which are doomed to fail.
    Type: Application
    Filed: March 20, 2001
    Publication date: March 28, 2002
    Inventor: Lars Dalsgaard
  • Patent number: 6226527
    Abstract: A dual or multi mode telephone can be connected to at least one cellular network or at least one cordless network. The telephone continuously monitors system information messages from said at least one cellular network and said at least one cordless network to maintain an idle mode connection. The telephone comprises first memory means for storing cell identification information about the cell in the cellular network concerned covering the telephone, and second memory means for storing cell identification information about the cells in the cellular network where the telephone has been covered by said at least one cordless network. The telephone furthermore comprises means for comparing the present cell identification information with the cell identification information stored in the second memory means, and means for enabling/disabling the cordless part of the telephone in dependence on said comparison.
    Type: Grant
    Filed: February 4, 1998
    Date of Patent: May 1, 2001
    Assignee: Nokia Mobile Phones Limited
    Inventors: Lars Dalsgaard, Marko Kukkohovi