Patents by Inventor Anders Dahlén

Anders Dahlén 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: 8660009
    Abstract: A cellular radio communications network includes a core network with a core network node coupled to a radio access network (RAN) associated with a first radio access technology for communicating with mobile radio terminals. The RAN includes multiple RAN nodes. Each mobile radio terminal has an associated access class for accessing service from the cellular radio communications network. The core network node detects an overload condition and sends an overload message to the RAN nodes that includes information for reducing the overload condition. Each of the RAN nodes receives the overload message and determines whether an access class restriction should be implemented to reduce the number of mobile radio terminals permitted to access the cellular radio communications network. If so, the RAN node determines one or more access classes of mobile radio terminals to be restricted based on the information in the overload message.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: February 25, 2014
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventor: Anders Dahlén
  • Publication number: 20130265954
    Abstract: A method for performing a selection of a public land mobile network identity in a shared network environment, in which environment at least two public land mobile network identities are available for providing circuit switched based service to user equipment. The method includes at least a step of determining a capability of the user equipment (201) and a step of selecting the public land mobile network identity (202) at least partly on the basis of the capability of the user equipment among the at least two public land mobile network identities. Information on the capability of the user equipment is either received from the user equipment or from a database including capability information on the user equipment. Furthermore, a network element and a system for implementing at least partly the method are described.
    Type: Application
    Filed: April 3, 2013
    Publication date: October 10, 2013
    Applicant: TeliaSonera Ab
    Inventors: Anders DAHLEN, Ulf NILSSON
  • Patent number: 8165587
    Abstract: A cellular radio communications network includes a core network coupled to a radio access network (RAN) that has multiple RAN nodes for communication with mobile radio terminals. Each of the multiple RAN nodes serves one or more cells. At least one cell associated with a first RAN node is in a restricted or reserved access state in which access to the one cell is restricted for at least some mobile radio terminals. The first RAN node sends a message to a second RAN node to inform the second RAN node of that restricted access cell. The fact that the restricted status of the one cell has changed is detected. A global message tha is not related to a specific mobile terminal is generated that includes information that the restricted status of the one cell has changed. The first RAN node sends the global message to the second RAN node to inform the second RAN node of the change in the restricted status of the one cell.
    Type: Grant
    Filed: February 7, 2008
    Date of Patent: April 24, 2012
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Anders Dahlen, Mats Buchmayer, Martin Israelsson, Mattias Wahlqvist
  • Patent number: 8155647
    Abstract: Methods and apparatuses for automatically determining neighbor cells are disclosed. Cell information is received. The received cell information is compared with a list of old neighbor cells. When a new cell is detected, a determination is made as to whether the detected new cell covers the same geographical area as any of the old neighbor cells. When the new cell covers the same geographical area as at least one of the cells of the list, the new cell is stored as a neighbor cell in the list. Cell information is received. The received cell information is compared with a list of old neighbor cells. New neighbors are detected based on the comparison. A determination is made as to whether there are cells in a same geographic area as the new neighbors. A determination is made as to whether there are new cells in a same geographic area as the old neighbor cells. The new neighbors, the cells in the same geographic area as the new neighbors, and the new cells are stored as neighbors in the list.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: April 10, 2012
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Martin Israelsson, Mattias Wahlqvist, Mats Buchmayer, Anders Dahlén
  • Publication number: 20110223918
    Abstract: The invention relates to a method in a first communication node in a wireless communications network comprising a plurality of second communication nodes for enabling a central processing of local data from second communication nodes in the network. The first communication node establishes (82) an intemode connection in a radio access network of the wireless communications network to a second communication node wherein information is sent of a virtual cell of the first communication node. The first communication node then requests (84) and receives (86) local information from the second communication node. The received local information is then processed (88) into processed data to be used to centrally process the local information of the second communication node. For centrally processing the local information, the processed data is transmitted (90) to a third communication node.
    Type: Application
    Filed: November 17, 2008
    Publication date: September 15, 2011
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Anders Dahlén, Paul Stjernholm
  • Publication number: 20110117916
    Abstract: A Network node provides information to a base station indicating a list of forbidden frequency from which the base station may or may not offer services. The base station checks the received list of forbidden frequencies when considering whether to provide service to user equipments from a new tracking area or a certain access technology. The base may also transmit a list of allowed frequencies or the list of forbidden frequencies to user equipments to be used thereof. By introducing the possibility to set an amount of frequencies as forbidden in the area and access restriction information of user equipments, operators would be able to offer services like home base station in a simple way to customers.
    Type: Application
    Filed: January 25, 2008
    Publication date: May 19, 2011
    Inventor: Anders Dahlén
  • Publication number: 20110090872
    Abstract: A method where a first type location area of a mobile node is registered to a first mobility management node. A second type location area is determined based on a location of the mobile node. A second type location area of the mobile node is registered to a second mobility management node of a second system. A request to perform user plane bearer establishment through the second system is received. Thereupon, radio measurements associated with at least two candidate cells are obtained from the mobile node. Candidate cells are searched to find at least one cell associated with the second type location area. A cell is selected among the at least one cell, which is indicated to the selected cell to the mobile node. A handover request is provided to the mobile node.
    Type: Application
    Filed: October 15, 2010
    Publication date: April 21, 2011
    Applicant: TELIASONERA AB
    Inventors: Anders Dahlén, Ulf Nilsson
  • Publication number: 20110058480
    Abstract: A cellular radio communications network includes a core network with a core network node coupled to a radio access network (RAN) associated with a first radio access technology for communicating with mobile radio terminals. The RAN includes multiple RAN nodes. Each mobile radio terminal has an associated access class for accessing service from the cellular radio communications network. The core network node detects an overload condition and sends an overload message to the RAN nodes that includes information for reducing the overload condition. Each of the RAN nodes receives the overload message and determines whether an access class restriction should be implemented to reduce the number of mobile radio terminals permitted to access the cellular radio communications network. If so, the RAN node determines one or more access classes of mobile radio terminals to be restricted based on the information in the overload message.
    Type: Application
    Filed: January 30, 2008
    Publication date: March 10, 2011
    Applicant: Telefonaktiebolaget L M Ericsson (publ)
    Inventor: Anders Dahlén
  • Patent number: 7894338
    Abstract: In a method of sharing a Radio Access Network, RAN, in one or more areas by at least two operators the determination whether to grant admission or not of a User Equipment, UE, to the RAN is performed in an admission control algorithm. A Radio Network Controller, RNC, is reading Network Resource Identifier, NRI, information contained in an “Initial Direct Transfer” message sent by the UE when requesting a service, and the read NRI information is used in a service admission control to check a plurality of service admission parameters as a part of a set of admission control parameters to grant or reject the requested service depending on whether the operator associated with the NRI has invested in needed technology or not. A corresponding radio access network comprises admission control means to determine whether to grant admission of a User Equipment, UE, to the network, RAN, or not.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: February 22, 2011
    Assignee: Teliasonera AB
    Inventors: Rickard Ljung, Anders Dahlen
  • Publication number: 20100323662
    Abstract: A cellular radio communications network includes a core network coupled to a radio access network (RAN) that has multiple RAN nodes for communication with mobile radio terminals. Each of the multiple RAN nodes serves one or more cells. At least one cell associated with a first RAN node is in a restricted or reserved access state in which access to the one cell is restricted for at least some mobile radio terminals. The first RAN node sends a message to a second RAN node to inform the second RAN node of that restricted access cell. The fact that the restricted status of the one cell has changed is detected. A global message tha is not related to a specific mobile terminal is generated that includes information that the restricted status of the one cell has changed. The first RAN node sends the global message to the second RAN node to inform the second RAN node of the change in the restricted status of the one cell.
    Type: Application
    Filed: February 7, 2008
    Publication date: December 23, 2010
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Anders Dahlen, Mats Buchmayer, Martin Israelsson, Mattias Wahlqvist
  • Publication number: 20090117897
    Abstract: Methods and apparatuses for automatically determining neighbor cells are disclosed. Cell information is received. The received cell information is compared with a list of old neighbor cells. When a new cell is detected, a determination is made as to whether the detected new cell covers the same geographical area as any of the old neighbor cells. When the new cell covers the same geographical area as at least one of the cells of the list, the new cell is stored as a neighbor cell in the list. Cell information is received. The received cell information is compared with a list of old neighbor cells. New neighbors are detected based on the comparison. A determination is made as to whether there are cells in a same geographic area as the new neighbors. A determination is made as to whether there are new cells in a same geographic area as the old neighbor cells. The new neighbors, the cells in the same geographic area as the new neighbors, and the new cells are stored as neighbors in the list.
    Type: Application
    Filed: October 30, 2008
    Publication date: May 7, 2009
    Inventors: Martin Israelsson, Mattias Wahlqvist, Mats Buchmayer, Anders Dahlen
  • Publication number: 20080112353
    Abstract: In a method of sharing a Radio Access Network, RAN, in one or more areas by at least two operators the determination whether to grant admission or not of a User Equipment, UE, to the RAN is performed in an admission control algorithm. A Radio Network Controller, RNC, is reading Network Resource Identifier, NRI, information contained in an “Initial Direct Transfer” message sent by the UE when requesting a service, and the read NRI information is used in a service admission control to check a plurality of service admission parameters as a part of a set of admission control parameters to grant or reject the requested service depending on whether the operator associated with the NRI has invested in needed technology or not. A corresponding radio access network comprises admission control means to determine whether to grant admission of a User Equipment, UE, to the network, RAN, or not.
    Type: Application
    Filed: December 21, 2005
    Publication date: May 15, 2008
    Applicant: Teliasonera AB
    Inventors: Rickard Ljung, Anders Dahlen