Patents by Inventor Gunnar Mildh

Gunnar Mildh 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: 20230042390
    Abstract: One aspect provides a method performed by a radio access network node in a telecommunications network. The method comprises: responsive to detection of a trigger event associated with a wireless device having a connection to the telecommunications network via the radio access network node or seeking to establish a connection to the telecommunications network via the radio access network node, transmitting, directly to a user plane core network node, a message initiating establishment of a user-plane tunnel for the connection between the radio access network node and the user plane core network node. The message comprises one or more of: an indication of an identifier of the wireless device; and an indication of an identifier of a session for the wireless device, and further comprises an indication of a downlink tunnel endpoint identifier of the radio access network node.
    Type: Application
    Filed: February 6, 2020
    Publication date: February 9, 2023
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Gunnar MILDH, Attila MIHÁLY, Paul SCHLIWA-BERTLING, Göran RUNE, Gergely PONGRÁCZ
  • Publication number: 20230044100
    Abstract: A wireless device configured to acquire network support information associated with a neighbor cell, wherein the network support information indicates that the neighbor cell supports a Stand-Alone (SA) mode of operation and/or a Non-Stand-Alone (NSA) mode of operation; and transmit to a serving network node a report comprising identification information associated with the neighbour cell and the network support information indicating that the neighbor cell supports a SA mode of operation and/or a NSA mode of operation. A serving network node configured to receive a report transmitted by a wireless device, wherein the report comprises identification information associated with the neighbor cell and network support information indicating that the neighbor cell supports a Stand-Alone (SA) mode of operation and/or a Non-Stand-Alone (NSA) mode of operation; and determine, based on the report, a type of interface to establish between the serving network node and the neighbor network node.
    Type: Application
    Filed: October 18, 2022
    Publication date: February 9, 2023
    Inventors: Parisa PAKNIAT, Icaro L. J. DA SILVA, Gunnar MILDH
  • Patent number: 11558918
    Abstract: An access node of the cellular network determines a correlation of an identifier of a user equipment with an entry of a Pending Interest Table maintained by an Information Centric Networking node. The Pending Interest Table comprises an entry for each data object having a pending Information Centric Networking request at the Information Centric Networking node. Based on the correlation, the access node controls a connection of the user equipment with the cellular network. This may involve deciding whether to release the user equipment to idle mode or paging of the user equipment.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: January 17, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Gunnar Mildh, Hans Eriksson, Kim Laraqui, Neiva Lindqvist, Ala Nazari, Börje Ohlman, Ioanna Pappa, Dinand Roeland, Johan Rune, Patrik Sellstedt
  • Patent number: 11553382
    Abstract: There is provided mechanisms for configuring use of keys for security protecting packets communicated between a wireless device and a network node. A method is performed by the wireless device. The method comprises exchanging key use information with the network node in conjunction with performing a key change procedure with the network node during which a first key is replaced with a second key. The key use information indicates which of the packets are security protected using which of the first key and the second key.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: January 10, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Prajwol Kumar Nakarmi, Noamen Ben Henda, Gunnar Mildh, Monica Wifvesson
  • Publication number: 20230007557
    Abstract: Embodiments of the present disclosure provide methods and apparatuses for handover. A method performed by a source NG-RAN, base station in a wireless communication network, for handling handover of a User Equipment, UE, in which the method includes obtaining an indication information which indicates the IP Multimedia Subsystem, IMS, voice call initiation. The method further includes performing a handover policy to prioritize handover or redirection to an Evolved-Universal Terrestrial Radio Access Network, E-UTRAN, base station over handover to a target NG-RAN base station.
    Type: Application
    Filed: November 24, 2020
    Publication date: January 5, 2023
    Inventors: Jinyin ZHU, Peter HEDMAN, Gunnar MILDH
  • Publication number: 20230007565
    Abstract: According to some embodiments, a method performed by an integrated access and backhaul (IAB) donor control unit (CU) network node comprises obtaining a first mapping between a first traffic type and a first communication path. The first communication path is for communicating the first traffic type between the IAB donor CU network node and an IAB network node. The method further comprises transmitting the first mapping to the IAB network node.
    Type: Application
    Filed: November 6, 2020
    Publication date: January 5, 2023
    Inventors: Gunnar Mildh, Ajmal Muhammad, Filip Barac, Oumer Teyeb
  • Publication number: 20230007623
    Abstract: A wireless device performs a method for updating a stored configuration. While in a power saving state, the wireless device monitors a paging channel. When the wireless device receives a paging message on the paging channel, it determines whether the paging channel includes a message relating to updating a stored configuration of the wireless device. If the paging channel includes a message relating to updating the stored configuration of the wireless device, the wireless device performs actions determined by said message.
    Type: Application
    Filed: July 3, 2020
    Publication date: January 5, 2023
    Inventors: Icaro L. J. Da Silva, Magnus Stattin, Gunnar Mildh
  • Publication number: 20220417806
    Abstract: A source base station determines that a wireless device is to be handed over from the source base station to a target base station and sends, to the target base station in a handover signaling message, a current mapping between two or more flow identifiers and a first data radio bearer used for communication between the wireless device and the source base station. The source base station receives, from the target base station, an indication that the current mapping is to be used and hands over the wireless device from the source base station to the target base station.
    Type: Application
    Filed: September 2, 2022
    Publication date: December 29, 2022
    Inventors: Gunnar Mildh, Paul Schliwa-Bertling
  • Publication number: 20220394476
    Abstract: A method performed by a wireless device (12) for use in a wireless communication system (10). The method comprises: receiving (W2100) signaling (22) indicating how the wireless device (12) is to generate a message authentication code, MAC, (20) for integrity protecting a Radio Resource Control, RRC, message (18) that 5 requests resumption of an RRC connection; generating (W2110) the MAC according to the signaling; and transmitting (W2120) the RRC message and the generated MAC. Further methods, a wireless devices, network nodes, computer programs, carriers and a communication system are also disclosed.
    Type: Application
    Filed: November 10, 2020
    Publication date: December 8, 2022
    Inventors: Icaro Leonardo Da Silva, Prajwol Kumar Nakarmi, Gunnar Mildh, Magnus Stattin
  • Publication number: 20220394565
    Abstract: Examples of this disclosure include a method performed by a wireless device for determining security keys. The method comprises, for each candidate primary secondary cell (PSCell) of a plurality of candidate PSCells for conditional addition or conditional change by the wireless device for dual connectivity, receiving, from a network node, a respective value associated with the candidate PSCell, wherein the value associated with the candidate PSCell is different to the value associated with at least one other candidate PSCell. The method also comprises determining, for each of at least one candidate PSCell of the plurality of candidate PSCells, a respective security key for communications between the wireless device and the candidate PSCell, wherein the respective security key is determined based on a master key and the respective value associated with the candidate PSCell.
    Type: Application
    Filed: September 30, 2020
    Publication date: December 8, 2022
    Inventors: Patrik Rugeland, Gunnar Mildh, Julien Muller
  • Patent number: 11523456
    Abstract: According to some embodiments, a method for use in a user equipment (UE) of resuming a radio bearer in a wireless communication network comprises: establishing a radio resource control (RRC) connection with a first network node; receiving a connection suspend message from the first network node; storing a configuration of a radio bearer associated with the RRC connection; suspending the radio bearer associated with the RRC connection; receiving a connection resume message; determining whether the connection resume message includes configuration information for NR packet data convergence protocol (PDCP) for the suspended radio bearer; upon determining the connection resume message includes configuration information for a NR PDCP, configuring the suspended radio bearer with the configuration information; and resuming the suspended radio bearer.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: December 6, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Oumer Teyeb, Gunnar Mildh
  • Publication number: 20220386209
    Abstract: Systems and methods are disclosed herein for User Equipment (UE) assisted data collection for mobility prediction. In one embodiment, a method performed by a UE for UE-assisted data collection for mobility prediction comprises receiving, from a network node of a cellular communications system, a UE trajectory prediction model for predicting a UE trajectory. The method further comprises executing the UE trajectory prediction model to generate a predicted trajectory for the UE, comparing the actual UE trajectory to the predicted UE trajectory, and sending, to a network node of the cellular communications system, a result of the comparison of the actual UE trajectory to the predicted UE trajectory. In this manner, mobility prediction performance is improved.
    Type: Application
    Filed: July 30, 2020
    Publication date: December 1, 2022
    Inventors: Dinand Roeland, Göran Eriksson, Gunnar Mildh
  • Publication number: 20220377595
    Abstract: Mapping Information for Integrated Access and BackhaulEmbodiments described herein relate to methods and apparatus for providing IAB mapping information. A method performed by CU-CP of a base station configured as a donor base station for one or more IAB nodes comprises transmitting a first message to setup or modify a first bearer context for a first bearer in a central unit user plane, CU-UP, of the base station, wherein the first message comprises an information element indicating mapping information for use in determining a mapping of the first bearer to a backhaul radio link control, BH RLC, channel.
    Type: Application
    Filed: May 29, 2020
    Publication date: November 24, 2022
    Inventors: Filip Barac, Julien Muller, Oumer Teyeb, Gunnar Mildh
  • Publication number: 20220369409
    Abstract: According to some embodiments, a method for use in a user equipment (UE) of resuming a radio bearer in a wireless communication network comprises: establishing a radio resource control (RRC) connection with a first network node; receiving a connection suspend message from the first network node; storing a configuration of a radio bearer associated with the RRC connection; suspending the radio bearer associated with the RRC connection; receiving a connection resume message; determining whether the connection resume message includes configuration information for NR packet data convergence protocol (PDCP) for the suspended radio bearer; upon determining the connection resume message includes configuration information for a NR PDCP, configuring the suspended radio bearer with the configuration information; and resuming the suspended radio bearer.
    Type: Application
    Filed: July 28, 2022
    Publication date: November 17, 2022
    Inventors: Oumer Teyeb, Gunnar Mildh
  • Patent number: 11490438
    Abstract: Embodiments include methods, for a first centralized unit (CU) in a radio access network (RAN), to configure a user equipment (UE) to communicate via first and second distributed units (DUs). Such methods include initiating a first radio resource control (RRC) entity to communicate with the UE via a first RRC connection through the first DU, and selecting the second DU to communicate with the UE in a dual-connectivity (DC) configuration with the first DU. Such methods include performing one or more of the following based on determining the second DU is associated with the first CU: initiating a second RRC entity within the first CU to communicate with the UE via a second RRC connection through the second DU; and establishing one or more further radio bearers with the UE via the second DU. Other embodiments include methods for a UE, and CUs and UEs configured to perform such methods.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: November 1, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Oumer Teyeb, Matteo Fiorani, Gunnar Mildh
  • Publication number: 20220329347
    Abstract: The disclosure relates to a method in a wireless device for transmitting an uplink signalling message in a wireless communication network. The wireless device is connected to a first network element over at least a first and a second wireless link. The method comprises determining a transmission mode among alternative transmission modes for transmitting the uplink signalling message. The alternative transmission modes comprise: transmitting on the first wireless link; transmitting on the second wireless link; and transmitting on both the first and the second wireless links. The method also comprises transmitting the uplink signalling message according to the determined transmission mode. The disclosure also relates to a corresponding method performed in the network element, and to the corresponding apparatus.
    Type: Application
    Filed: June 27, 2022
    Publication date: October 13, 2022
    Inventors: Jari Vikberg, Gunnar Mildh, Johan Rune, Icaro Leonardo J. Da Silva, Pontus Wallentin
  • Publication number: 20220330018
    Abstract: According to an aspect, a wireless device sends, while in an RRC inactive state, a message requesting resumption of an RRC connected state. Upon sending the message, the wireless device starts a timer according to a predetermined value. While the timer is running, the wireless device attempts decryption and integrity check handling for packets subsequently received from the wireless network.
    Type: Application
    Filed: June 20, 2022
    Publication date: October 13, 2022
    Inventors: Gunnar Mildh, Icaro L. J. Da Silva
  • Publication number: 20220330109
    Abstract: Methods, User Equipment (UE), and source network node for resuming a Radio Resource Control (RRC) connection to a target cell in a wireless communications network. The UE generates a security token using a set of input parameters and sends a resuming request with the security token to a target network node serving the target cell. When receiving the resuming request, the source network node generates a security token using a set of input parameters in the same manner as the UE. If the received security token is successfully verified when compared with the generated security token, the source network node provides to the target network node a UE context of the UE, to enable the target network node to resume the RRC connection.
    Type: Application
    Filed: June 20, 2022
    Publication date: October 13, 2022
    Inventors: Oscar Ohlsson, Icaro L. J. Da Silva, Gunnar Mildh, Magnus Stattin
  • Patent number: 11470661
    Abstract: A method for establishing a BH RLC channel between a node and a DU. The method includes a CU detecting (s402) a need to establish the BH RLC channel between the node and the DU; and in response to detecting the need to establish the BH RLC channel, the CU sending (s404) to the DU an AP message requesting the DU to setup the BH RLC channel. The AP message comprises: i) a list identifying one or more BH RLC channels to be setup, wherein the list comprises at least one item containing a BH RLC Channel identifier, ID, information element, IE, containing a BH RLC Channel ID identifying the BH RLC channel, or ii) a DRB ID IE containing the BH RLC Channel ID identifying the BH RLC channel.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: October 11, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Gunnar Mildh, Oumer Teyeb, Ajmal Muhammad
  • Patent number: 11464067
    Abstract: According to some embodiments, a method for use in a network node of providing a radio resource control (RRC) state of a user equipment (UE) to a core network node comprises: receiving, from the core network node, a request to receive a notification of a transition of the UE between a first and second RRC state; determining the UE transitioned between the first and second RRC state; and sending the notification of the transition to the core network node. A method for use in a core network node of receiving RRC state information of a UE comprises: sending, to the network node, a subscription request to receive a notification of a transition of the UE between a first and second RRC state; and upon the network node determining the UE transitioned between the first and second RRC state, receiving the notification from the network node.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: October 4, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Angelo Centonza, Gunnar Mildh, Lasse Olsson, Paul Schliwa-Bertling