Patents by Inventor Tomas Hedberg

Tomas Hedberg 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: 10587498
    Abstract: The present disclosure relates to methods and arrangements for multipath traffic aggregation using a multipath Transmission Control Protocol, MPTCP, proxy. A method of relaying data between an MPTCP capable wireless device and a server is performed in a multipath Transmission Control Protocol, MPTCP, proxy, configured with a unique Internet Protocol, IP, address. The comprises establishing (S33) an MPTCP session between the MPTCP proxy and the wireless device, the MPTCP session comprising a first MPTCP subflow mapped on a first network path for the wireless device using a default traffic flow tuple, and establishing (S35) a TCP session with the server. The method further comprises initiating (S37) a further MPTCP subflow in the MPTCP session between the MPTCP proxy and the wireless device based on a mapping of the further MPTCP subflow to a second network path for the wireless device using a filtering traffic flow tuple comprising the unique IP-address configured for the MPTCP proxy.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: March 10, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Oscar Zee, Tomas Hedberg, Jari Vikberg
  • Publication number: 20200059841
    Abstract: The present disclosure relates to methods, nodes and computer program products for controlling radio channel deployment when using un-licensed carriers in a wireless communication network. In particular, the present disclosure relates to method for mobility and/or load balancing target selection when using un-licensed carriers. When performed in an access node, the method for controlling radio channel deployment in the un-licensed spectrum includes determining unlicensed carrier intrinsic cell channel load in a cell served by the access node based on one or more predetermined channel load indicators and obtaining neighbor cell channel load information, from one or more neighboring access nodes. The neighbor cell channel load information includes unlicensed carrier channel load in respective cells based on the one or more predetermined channel load indicators.
    Type: Application
    Filed: January 30, 2018
    Publication date: February 20, 2020
    Inventors: Chunhui Zhang, Peter Alriksson, Tomas Hedberg, Yusheng Liu, Mai-Anh Phan, David Sugirtharaj, Emma Wittenmark
  • Patent number: 10498502
    Abstract: This disclosure relates a method and a base station for network sharing using carrier aggregation. The base station of a multi-carrier system comprises a multiple of cells, where each cell corresponds to a carrier that is associated with a PLMN. The base station receives (302, S-424, S-516, S-616) a UE request with information of a UE (402, 502, 602), where a first cell of said multiple of cells corresponds to a first carrier. The base station determines (304, S-428, S-520, S-626) based on base station settings and/or UE information, whether an other carrier associated with a different PLMN is available to said UE. If so, the base station sends (306, S-430, S-440, S-524, S-530) a resource configuration message destined for said UE (402, 502, 602), enabling said UE to configure said other carrier as a SCC. Better coverage, peak rates and capacity, without suffering from the drawbacks of existing RAN sharing techniques, are provided.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: December 3, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Gunnar Mildh, Gabor Fodor, Tomas Hedberg, Jari Vikberg
  • Patent number: 10448286
    Abstract: The present disclosure relates to user equipment (20) mobility between a first radio access network (11) arranged to operate according to a first radio access technology and a second radio access network (12) arranged to operate according to a second radio access technology. A user equipment (20) connected to the first radio access network (11) retrieves information associated with an anonymized temporary identifier assigned to the user equipment (20) by a radio access node (30) in the first radio access network (11), stores the information in the user equipment (20) and presents the temporary identifier to a radio access point (40) of the second radio access network, when seeking to connect.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: October 15, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Tomas Hedberg, Filip Mestanov, Karl Norrman, Paul Schliwa-Bertling, Jari Vikberg
  • Patent number: 10433226
    Abstract: A method for achieving efficient usage of communication resources in a Wireless Local Area Network (WLAN) and a Radio Access Network (RAN), and a system executing the method are disclosed. The method comprises performing, by a user equipment (UE), measurements on a signal received from a WLAN control node, sending the measurements from the UE to a RAN control node, and sending, from the RAN control node to the UE, an instruction to send a probe signal to the WLAN control node. The method further comprises performing, by the WLAN control node, measurements on the probe signal, and determining whether or not the UE should be granted access to the WLAN.
    Type: Grant
    Filed: February 11, 2014
    Date of Patent: October 1, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Oscar Zee, Tomas Hedberg, Jari Vikberg
  • Patent number: 10412666
    Abstract: A network entity receives a WLAN access message from a UE. The WLAN access message includes an indication of the UE status with the telecommunication network. The network entity detects the indication of UE status and determines from the indication whether to allow the UE access to the WLAN. When the WLAN is integrated with the telecommunications network, the network entity sends a query to the telecommunication network (e.g. the RAN or core network part) for a decision based on the UE status with the telecommunication network. The indication may include data representative of RAN or core network accessibility information (e.g., limited service or no coverage), WLAN access only, a user preference for accessing the WLAN instead of the telecommunication network, and/or any other connectivity or preference information for use by the WLAN or network entity in determining whether to allow UE to access WLAN.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: September 10, 2019
    Assignee: Telefonaktiebolabet LM Ericsson (publ)
    Inventors: Tomas Hedberg, Jari Vikberg, Oscar Zee
  • Publication number: 20190261232
    Abstract: Systems and methods are disclosed for providing a network-instructed handover of a wireless device from a Wireless Local Area Network (WLAN) to a Radio Access Network (RAN) of another Radio Access Technology (RAT), e.g., a 3rd Generation Partnership Project (3GPP) or 3rd Generation Partnership Project 2 (3GPP2) RAT. In one embodiment, a WLAN access node determines that a handover of a wireless device from the WLAN to another RAN of a different RAT is to be performed and transmits a handover instruction to the wireless device that instructs the wireless device to perform a handover from the WLAN to a RAN of a different RAT. In this manner, the WLAN access node is able to steer the wireless device from the WLAN to a RAN of a different RAT.
    Type: Application
    Filed: May 2, 2019
    Publication date: August 22, 2019
    Inventors: Filip Mestanov, Tomas Hedberg, Stephen Rayment, Dinand Roeland, Magnus Stattin, Jari Vikberg
  • Patent number: 10375628
    Abstract: A method and network node for selecting a most suitable gateway for a User Equipment (UE) located in a wireless communications network. The network includes the network node and at least two gateways configured to provide packet data network connectivity to the UE located within a served cell. The network node detects a presence of a local gateway among the gateways and obtains UE information including a type of the UE. The UE type is either a stationary/fixed type or a mobile type, and the UE type is determined based on UE mobility behavior in relation to a local gateway service area. The network node selects the detected local gateway or another gateway among the at least two gateways for providing packet data network connectivity to the UE based on the determined UE type.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: August 6, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Tomas Nylander, Jari Vikberg, Tomas Hedberg
  • Publication number: 20190215698
    Abstract: According to some embodiments, a method for use in a first spectrum access system (SAS) server of authorizing spectrum access comprises: receiving, from a second SAS, information about one or more priority access license (PAL) protection areas (PPAs) served by the second SAS; receiving a spectrum grant request on behalf of one of a first PPA or a first general authorized access (GAA) user; determining whether granting the spectrum grant request may interfere with a second PPA geographically proximate the one of the first PPA or the first GAA user, wherein the second PPA is served by the second SAS; and granting or denying the spectrum grant request based at least in part on the interference determination. The interference determination may comprise modeling the radio environment within the second PPA and surrounding areas based on the spectrum grant request to determine whether an aggregate interference level exceeds a threshold.
    Type: Application
    Filed: May 11, 2017
    Publication date: July 11, 2019
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Kumar BALACHANDRAN, Virgil CIMPU, Tomas HEDBERG, Mats BUCHMAYER
  • Patent number: 10349429
    Abstract: A system and method for frequency redirection in a communication system. In one embodiment, an apparatus accesses a communication system using first system information associated with a first frequency providing a first radio measurement. The apparatus receives an instruction to evaluate at least one frequency, and performs a second radio measurement over a second frequency without reading second system information associated with the second frequency. The apparatus accesses the communication system using the second system information associated with the second frequency when the second radio measurement exceeds a threshold, and performs a third radio measurement over a third frequency when the second radio measurement is less than or equal to the threshold and without reading third system information associated with the third frequency.
    Type: Grant
    Filed: December 17, 2017
    Date of Patent: July 9, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Badawi Yamine, Tomas Hedberg
  • Publication number: 20190191445
    Abstract: A system and method for frequency redirection in a communication system. In one embodiment, an apparatus accesses a communication system using first system information associated with a first frequency providing a first radio measurement. The apparatus receives an instruction to evaluate at least one frequency, and performs a second radio measurement over a second frequency without reading second system information associated with the second frequency. The apparatus accesses the communication system using the second system information associated with the second frequency when the second radio measurement exceeds a threshold, and performs a third radio measurement over a third frequency when the second radio measurement is less than or equal to the threshold and without reading third system information associated with the third frequency.
    Type: Application
    Filed: December 17, 2017
    Publication date: June 20, 2019
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Badawi YAMINE, Tomas HEDBERG
  • Patent number: 10321364
    Abstract: Systems and methods are disclosed for providing a network-instructed handover of a wireless device from a Wireless Local Area Network (WLAN) to a Radio Access Network (RAN) of another Radio Access Technology (RAT), e.g., a 3rd Generation Partnership Project (3GPP) or 3rd Generation Partnership Project 2 (3GPP2) RAT. In one embodiment, a WLAN access node determines that a handover of a wireless device from the WLAN to another RAN of a different RAT is to be performed and transmits a handover instruction to the wireless device that instructs the wireless device to perform a handover from the WLAN to a RAN of a different RAT. In this manner, the WLAN access node is able to steer the wireless device from the WLAN to a RAN of a different RAT.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: June 11, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Filip Mestanov, Tomas Hedberg, Stephen Rayment, Dinand Roeland, Magnus Stattin, Jari Vikberg
  • Publication number: 20190174453
    Abstract: The present disclosure relates to a method, performed in a network node of a first network, for designating one or more cells of a second network as neighbouring cells to the first network. The method comprises selecting a set of carriers employed in the second network and transmitting information for the selected set of carriers to a wireless device served by the first network. Measurement reports are received for respective carriers from the wireless device. The network node determines neighbour cell relations between the first network and one or more cells of the second network based on the received measurement reports.
    Type: Application
    Filed: August 30, 2016
    Publication date: June 6, 2019
    Inventors: Håkan OLOFSSON, Tomas HEDBERG
  • Patent number: 10271259
    Abstract: In a method performed by a user equipment for controlling radio access network selection and traffic steering for the user equipment in a heterogeneous communication network, said communication network comprising at least said user equipment, at least one radio access network controller node and at least one ANDSF policy server node with which the user equipment is associated, wherein the method includes the steps of adaptively at least partly suspending or activating provided ANDSF policies to enable switching between radio access network control or ANDSF policy control of radio access network selection and traffic steering for the user equipment.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: April 23, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Jari Vikberg, Paul Schliwa-Bertling, Tomas Hedberg
  • Patent number: 10136374
    Abstract: A method for controlling IP flow mobility is performed in a communication network comprising 3GPP and non-3GPP access networks, wherein a UE has an IP flow mobility PDN connection set up towards the communication network. The method comprises triggering sending to the UE, a number of IP flow specific RAN assistance parameter values for controlling the UE to route an IP flow of the IP flow mobility PDN connection either over the 3GPP access network or the non-3GPP access network. The IP flow specific RAN assistance parameters may be threshold parameters setting a limit for when to route an IP flow to the 3GPP access network or when to route the IP flows to the non-3GPP access network.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: November 20, 2018
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Dinand Roeland, Jari Vikberg, Tomas Hedberg, Stefan Rommer
  • Patent number: 10097475
    Abstract: A method performed by a multi-path transmission control protocol (MPTCP) controller of a MPTCP capable device. The method includes receiving, from outside of the device, information signals comprising MPTCP usage information. The method also includes sending control signals to an MPTCP scheduler of the device for controlling the scheduler. The control signals are based on the received usage information. Devices for performing the method are also described.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: October 9, 2018
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Gunnar Mildh, Jari Vikberg, Tomas Hedberg
  • Publication number: 20180249403
    Abstract: A method and network node for selecting a most suitable gateway for a User Equipment (UE) located in a wireless communications network. The network includes the network node and at least two gateways configured to provide packet data network connectivity to the UE located within a served cell. The network node detects a presence of a local gateway among the gateways and obtains UE information including a type of the UE. The UE type is either a stationary/fixed type or a mobile type, and the UE type is determined based on UE mobility behavior in relation to a local gateway service area. The network node selects the detected local gateway or another gateway among the at least two gateways for providing packet data network connectivity to the UE based on the determined UE type.
    Type: Application
    Filed: April 27, 2018
    Publication date: August 30, 2018
    Inventors: Tomas NYLANDER, Jari VIKBERG, Tomas HEDBERG
  • Patent number: 10015713
    Abstract: The disclosure relates to methods, a wireless device, a radio access node and computer programs for improving wireless device mobility between a first radio access network arranged to operate according to a first radio access technology and a second radio access network arranged to operate according to a second radio access technology. In particular, the disclosure relates to handover preparation procedure to improve handover of a wireless device (20) connected to a first radio access network (11) arranged to operate according to a first radio access technology to a second radio access network (12) arranged to operate according to a second radio access technology. The handover preparation procedure includes the sending of a handover prepare message (S47) from an access node (30) of a first radio access network to a connected wireless device (20).
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: July 3, 2018
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Tomas Hedberg, Filip Mestanov, Jari Vikberg
  • Patent number: 9986496
    Abstract: A method and network node for selecting a most suitable gateway for a User Equipment (UE) located in a wireless communications network. The network includes the network node and at least two gateways configured to provide packet data network connectivity to the UE located within a served cell. The network node detects a presence of a local gateway among the gateways and obtains UE information including a type of the UE. The UE type is either a stationary/fixed type or a mobile type, and the UE type is determined based on UE mobility behavior in relation to a local gateway service area. The network node selects the detected local gateway or another gateway among the at least two gateways for providing packet data network connectivity to the UE based on the determined UE type.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: May 29, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Tomas Nylander, Jari Vikberg, Tomas Hedberg
  • Patent number: 9986498
    Abstract: In a method of enabling radio access network control of selection of radio access technology and traffic steering of radio bearers for user equipment in a heterogeneous wireless communication network, the network comprising at least one ANDSF policy server node with at least one associated user equipment and at least one radio access network node, performing the steps of exchanging at least core network information between the ANDSF policy server node and the at least one radio access network node over a provided communication interface, and controlling the selection of radio access technology and traffic steering of radio bearers for the at least one associated user equipment based on at least the exchanged core network information.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: May 29, 2018
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Tomas Hedberg, Filip Mestanov, Jari Vikberg