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).

  • Patent number: 11838891
    Abstract: Methods and devices of enabling paging of a wireless communication device. In an aspect, a method of a node configured to provide core network user plane functionality in a communications network is provided to enable paging of a wireless communication device being in an idle state.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: December 5, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Jari Vikberg, Göran Hall, Ulf Mattsson, Gunnar Mildh, Göran Rune
  • Patent number: 11838810
    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: Grant
    Filed: October 18, 2022
    Date of Patent: December 5, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Parisa Pakniat, Icaro L. J. Da Silva, Gunnar Mildh
  • Patent number: 11838978
    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: July 28, 2022
    Date of Patent: December 5, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Oumer Teyeb, Gunnar Mildh
  • Patent number: 11832332
    Abstract: A method performed by a user equipment includes receiving, via a radio access network (RAN), a radio resource control (RRC) message indicating to transition from RRC_CONNECTED to RRC_INACTIVE. The RRC message includes a resume identifier. The user equipment performs a connection resume procedure that includes transmitting, to the RAN, an RRC connection resume request that includes the resume identifier and transmitting, to the RAN, an RRC resume complete message that includes an index of a selected public land mobile network (PLMN) identity.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: November 28, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Gunnar Mildh, Paul Schliwa-Bertling, Magnus Stattin, Christofer Lindheimer
  • Publication number: 20230380004
    Abstract: According to an aspect, a wireless device, operating in a wireless network, handles transitions from Radio Resource Control (RRC) connected state to an RRC inactive state. The wireless device receives, from the wireless network, a message indicating either that the wireless device is to enter the RRC inactive state or that the wireless device is to remain in the RRC inactive state. The wireless device, responsive to the message, uses, for inactive state operation, at least one previously stored inactive state parameter corresponding to a parameter omitted from the message.
    Type: Application
    Filed: August 1, 2023
    Publication date: November 23, 2023
    Inventors: Icaro L. J. da Silva, Gunnar Mildh
  • Patent number: 11825546
    Abstract: Methods and apparatuses are disclosed for updating a wait timer as a result of receiving one of a release message and a suspend message and/or configuring a wireless device (WD) to update a wait timer by determining the one of the release message and the suspend message to be communicated to the WD.
    Type: Grant
    Filed: March 21, 2023
    Date of Patent: November 21, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Gunnar Mildh, Icaro L. J. Da Silva
  • Patent number: 11800589
    Abstract: A wireless device is configured for wirelessly communicating with one or more types of Radio Access Networks (RANs) providing control-plane connectivity to one or both of a first type of core network and a second type of core network. The device configures a Packet Data Convergence Protocol (PDCP) at the device, e.g., at least for initial control-plane signaling, in dependence on whether the device is connected, or connecting, to the first type or the second type of core network. In at least one embodiment, the device configures PDCP for the second type of core network as a default choice, when control-plane connectivity to the second core network is available. In an example arrangement, the RAN types are LTE and 5G New Radio (NR), and the core network types are Evolved Packet Core (EPC) and 5G New Generation Core Network (NGCN).
    Type: Grant
    Filed: May 10, 2022
    Date of Patent: October 24, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Rui Fan, Gunnar Mildh
  • Patent number: 11800577
    Abstract: Certain embodiments disclose systems, methods, and apparatus for establishing and using multiple Stream Control Transmission Protocol (SCTP) associations. An example method includes a network node establishing a first SCTP association and a second SCTP association for an application protocol connection with a core network node. The network node moves a user equipment (UE) associated signaling stream from the first SCTP association to the second SCTP association.
    Type: Grant
    Filed: January 15, 2021
    Date of Patent: October 24, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Oscar Zee, Angelo Centonza, Gunnar Mildh, Claudio Porfiri
  • Publication number: 20230337311
    Abstract: Methods and apparatus are provided. In an example aspect, a method in a User Equipment (UE) of performing a RRC re-establishment procedure is provided. The method comprises receiving an instruction from a network node to perform a RRC re-establishment procedure, and transmitting a RRC re-establishment request.
    Type: Application
    Filed: September 22, 2020
    Publication date: October 19, 2023
    Inventors: Oumer Teyeb, Gunnar Mildh, Jari Vikberg, Paul Schliwa-Bertling
  • Publication number: 20230337314
    Abstract: Systems, methods, and apparatus are disclosed for a user equipment. An example method performed by a user equipment includes establishing a connection to a Radio Access Network (RAN) via a first network node. Communications are provided over the connection using Signaling Radio Bearer 1 (SRB1) configured with a New Radio (NR) Packet Data Convergence Protocol (PDCP). After the connection is suspended, the user equipment receives a Radio Resource Control (RRC) connection re-establishment message from a second network node. The connection re-establishment message includes a radioResourceConfigDedicated information element (IE). The user equipment re-establishes the connection to the RAN by applying a Long-Term Evolution (LTE) PDCP configuration to SRB1, performing a radio resource configuration procedure in accordance with the radioResourceConfigDedicated IE, and sending an RRC connection re-establishment complete message to the second network node.
    Type: Application
    Filed: June 23, 2023
    Publication date: October 19, 2023
    Inventors: Oumer Teyeb, Gunnar Mildh
  • Patent number: 11792635
    Abstract: A wireless device handles area update reports. The wireless device initiates a radio network area update, RNAU, responsive to detecting that the wireless device has entered a cell not belonging to a radio network area, RNA, configured for the wireless device. The wireless device receives, from the wireless network, a message indicating that the wireless device's attempt to perform the RNAU has been rejected. The message includes or is accompanied by an indication that a wait time value is applicable. Responsive to the message, the wireless device sets a reject wait timer to the wait time value and performs the RNAU upon expiry of the reject wait timer. In some embodiments, the wireless device sets a periodic RNAU timer to the wait time value, responsive to the message, and performs the RNAU upon expiry of the reject wait timer and the periodic RNAU timer.
    Type: Grant
    Filed: April 16, 2021
    Date of Patent: October 17, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Gunnar Mildh, Icaro L. J. da Silva
  • Publication number: 20230328838
    Abstract: Systems, methods, and apparatus for handling communications relating to suspending a user equipment in a radio access network (RAN) are disclosed. An example method includes the user equipment receiving a radio resource control (RRC) release message from a network node. The user equipment determines that the RRC release message includes a suspend configuration field. The user equipment applies delta signalling corresponding to a suspend configuration indicated by the suspend configuration field and transitions to an inactive state.
    Type: Application
    Filed: June 14, 2023
    Publication date: October 12, 2023
    Inventors: Christofer Lindheimer, Malik Wahaj Arshad, Icaro L.J. da Silva, Gunnar Mildh, Riikka Susitaival
  • Publication number: 20230319939
    Abstract: According to certain embodiments, a target network node for communicating with a user equipment (UE) that was previously in communication with a source network node, comprises an interface operably coupled to processing circuitry. The interface is configured to receive a connection resume request from the user equipment, wherein the connection resume request comprises a resume identification associated with the source network node. The processing circuitry is configured to determine that the UE was previously in communication with the source network node. The interface is further configured to transmit the connection resume request to the source network node, receive a radio resource control (RRC) response from the source network node, and forward the RRC response to the UE.
    Type: Application
    Filed: May 1, 2023
    Publication date: October 5, 2023
    Inventors: Patrik RUGELAND, Icaro L. J. DA SILVA, Gunnar MILDH
  • Publication number: 20230319948
    Abstract: Embodiments include methods performed by a radio access network (RAN) node of a wireless communication system. Such methods include receiving, from a wireless device via a cell, a request to resume an RRC connected state with the wireless communication network. The request includes a cause indicator that indicates mobility signaling as a cause for resuming the RRC connected state. Such methods include, based on the cause indicator, requesting an access and mobility management function (AMF) of the wireless communication system to perform a tracking area update (TAU) for the wireless device. Such methods include receiving from the AMF an indication that the TAU for the wireless device is complete and in response to the received indication, initiating an access-stratum (AS) procedure for the wireless device. Other embodiments include complementary methods for AMFs as well as RAN node and AMFs configured to perform such methods.
    Type: Application
    Filed: June 9, 2023
    Publication date: October 5, 2023
    Inventors: Christofer Lindheimer, Icaro L. J. Da Silva, Gunnar Mildh, Paul Schliwa-Bertling
  • Patent number: 11778684
    Abstract: Embodiments include methods in a wireless device. Such methods include, while the wireless device is in an RRC inactive state with respect to a wireless communication network, determining that updates are needed for the wireless device's access stratum (AS) and non-access stratum (NAS). For example, the AS update can be a RAN notification area update (RNAU) and the NAS update can be a tracking area update (TAU). Such methods include transmitting, to the wireless communication network, a request to resume an RRC connected state with the wireless communication network. The request includes a cause indicator that indicates mobility signaling as a cause for resuming the RRC connected state. Such methods also include receiving, from the wireless communication network, a response to the request to resume the RRC connected state and initiating the NAS update based on the response. Other embodiments include wireless devices configured to perform such methods.
    Type: Grant
    Filed: December 8, 2021
    Date of Patent: October 3, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Christofer Lindheimer, Icaro L. J. Da Silva, Gunnar Mildh, Paul Schliwa-Bertling
  • Patent number: 11765783
    Abstract: Embodiments include methods in a wireless device. Such methods include, while the wireless device is in a Radio Resource Control (RRC) inactive state with respect to a wireless communication network, determining that a Radio Access Network Notification Area Update (RNAU) is needed. Such methods include evaluating whether there is any cause, other than the determined need for the RNAU, for resuming an RRC connected state with the wireless communication network and transmitting, to the wireless communication network, an RRC Resume Request message comprising a cause indicator indicating a cause for resuming the RRC connected state. The cause indicator indicates an RNAU when there is no cause for resuming the RRC connected state other than the determined need for the RNAU and otherwise indicates a cause other than an RNAU. Other embodiments include wireless devices configured to perform such methods and computer-readable media that store instructions embodying such methods.
    Type: Grant
    Filed: November 15, 2021
    Date of Patent: September 19, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Christofer Lindheimer, Icaro L. J. Da Silva, Gunnar Mildh, Paul Schliwa-Bertling
  • Publication number: 20230292204
    Abstract: An integrated access backhaul, IAB, node (12) migrates a control plane connection (22) of the IAB node (12) from first radio network equipment (14A) to second radio network equipment (14B). After migrating the control plane connection (22), the IAB node (12) at least temporarily maintains a radio network layer application protocol connection (24) between the IAB node (12) and the first radio network equipment (14A).
    Type: Application
    Filed: July 15, 2021
    Publication date: September 14, 2023
    Inventors: Gunnar Mildh, Oumer Teyeb, Ajmal Muhammad, Filip Barac, Paul Schliwa-Bertling, Per-Erik Eriksson
  • Publication number: 20230292184
    Abstract: A method is performed by a source Central Unit (CU) in an Integrated Access and Wireless Access Backhaul (IAB) network. The method includes transmitting, by the source CU, a message requesting a handover of a plurality of migrating devices associated with a first IAB node migrating from the source CU to a target CU. The message comprises at least one globally unique identifier of at least one management function serving the plurality of migrating devices.
    Type: Application
    Filed: July 2, 2021
    Publication date: September 14, 2023
    Inventors: Filip Barac, Oumer Teyeb, Gunnar Mildh, Paul Schliwa-Bertling, Ajmal Muhammad
  • Patent number: 11758432
    Abstract: A method by an integrated access backhaul (IAB) node in a radio network includes generating a delivery status that indicates a status of a data connection, the data connection has a logical interface connection to a central unit (CU) node, the logical interface connection of the data connection is not terminated at the IAB node, and transmitting the delivery status to the CU node. The data connection may be a radio bearer.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: September 12, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Oumer Teyeb, Gunnar Mildh
  • Patent number: 11758474
    Abstract: According to some embodiments, a method for use in a wireless device of acquiring system information associated with a core network comprises receiving system information from a network node. The network node is connected to one or more core networks. The system information includes an indication of a network type (e.g., enhanced packet system (EPS), fifth generation system (5GS), etc.) for each core network. The method further comprises determining a capability of the wireless device for connecting to the plurality of network types, and determining whether to connect to a core network based on the network type and the capability of the wireless device. In particular embodiments, the indication of the network type comprises a list of public land mobile networks (PLMNs) connected to the network node and an indication of network types supported by each PLMN.
    Type: Grant
    Filed: March 14, 2022
    Date of Patent: September 12, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Gunnar Mildh, Matteo Fiorani, Paul Schliwa-Bertling, Kai-Erik Sunell