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).

  • Indicating RAN notification area update (RNAU) in RRC_INACTIVE state
    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
  • Control Plane Connection Migration in an Integrated Access Backhaul Network
    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
  • N2 ASPECTS OF INTEGRATED ACCESS AND WIRELESS ACCESS BACKHAUL NODE INTER-DONOR MIGRATION
    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
  • Enhanced end to end flow control for multi-hop integrated access backhaul (IAB) networks
    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
  • Resolving system information between EPS and 5GS
    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
  • Methods, Apparatus and Machine-Readable Media Relating to Migration in a Wireless Communication Network
    Publication number: 20230284106
    Abstract: A method is performed by a first base station, the first base station being configured as one of a plurality of base stations providing services to a plurality of devices in a wireless communication network according to a multi-connectivity configuration for the plurality of devices. The method comprises: transmitting a request message to a second base station of the plurality of base stations, the request message requesting an alteration to the multi-connectivity configuration for the plurality of devices.
    Type: Application
    Filed: July 2, 2021
    Publication date: September 7, 2023
    Inventors: Oumer Teyeb, Gunnar Mildh
  • Hop by hop security in IAB networks
    Patent number: 11751047
    Abstract: A method and apparatus for a first IAB node for securely communicating with at least one second IAB node is provided. A secure connection with a node of a network is established. A message is received, from the node, indicating a secure messaging protocol to use to communicate with the at least one second IAB node, the message including one of at least one nonce or a key. A control message to be sent to the at least one second IAB node is transformed into a secure control message using the secure messaging protocol. The secure control message is transmitted to the at least one second IAB node.
    Type: Grant
    Filed: January 3, 2020
    Date of Patent: September 5, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Oumer Teyeb, Gunnar Mildh, Prajwol Kumar Nakarmi
  • HANDLING OF PERIODIC RADIO ACCESS NETWORK (RAN) BASED NOTIFICATION AREA (RNA) TIMER
    Publication number: 20230276523
    Abstract: A method and wireless device for handling a periodic RNA update timer are disclosed. A method is implemented in a wireless device (WD) for stopping an update timer based on a condition including that the WD: receives an RRC Setup message triggering transition of the WD to an RRC_CONNECTED state in response to an RRC Resume request message; receives an RRC Suspend message indicating that the WD is to stay in an RRC_INACIVE state in response to an RRC Resume Request message; receives an RRC Release message triggering transition of the WD to an RRC_IDLE state in response to an RRC Resume Request message; fails to receive an RRC Resume message, RRC Suspend message or an RRC Release message after sending an RRC Resume Request message; or the WD enters the RRC_IDLE state from the RRC-INACTIVE state without transitioning through the RRC_CONNECTED state.
    Type: Application
    Filed: May 9, 2023
    Publication date: August 31, 2023
    Inventors: Gunnar MILDH, Icaro L.J. DA SILVA
  • FREQUENCY OR RADIO ACCESS TECHNOLOGY (RAT) SELECTION BASED ON SLICE AVAILABILITY
    Publication number: 20230269715
    Abstract: Embodiments of the present disclosure relate to frequency or RAT selection based on slice availability. In one aspect, a core network function is provided for determining information for RAT and/or frequency selection based on knowledge of network slices and providing that information to a RAN node, which may provide that information to a UE. The information may be a RFSP index or other index parameter, which may be set based on subscription related information or other information. Slice knowledge may include knowledge of availability of network slices at the network, active slices for the UE, slices to which the UE is registered or connected, and/or slices to which the UE is allowed access. In another aspect, a RAN node performs mapping to mobility policies for UE active or idle mobility based on the determined information along with slice or subscription information provided by a CN node.
    Type: Application
    Filed: May 3, 2023
    Publication date: August 24, 2023
    Inventor: Gunnar Mildh
  • Handling of PDCP during connection re-establishment
    Patent number: 11737160
    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: Grant
    Filed: June 16, 2021
    Date of Patent: August 22, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Oumer Teyeb, Gunnar Mildh
  • Handling of inactive parameters upon release and re-suspend
    Patent number: 11729855
    Abstract: Systems and methods are disclosed herein for updating stored User Equipment (UE) context information upon re-suspend of the UE in response to a resume request from the UE. In some embodiments, a method in a UE comprises transmitting a Radio Resource Control (RRC) resume request message and, in response to the RRC resume request message, receiving an RRC connection release message with an indication for suspend. The method further comprises, in response to receiving the RRC connection release message with an indication for suspend, replacing information in a stored Access Stratum (AS) context of the UE with new information.
    Type: Grant
    Filed: August 23, 2021
    Date of Patent: August 15, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Gunnar Mildh, Icaro L. J. da Silva
  • METHODS PROVIDING FLEXIBLE COMMUNICATION BETWEEN RADIO ACCESS AND CORE NETWORKS AND RELATED NODES
    Publication number: 20230254680
    Abstract: Methods of operating a network function NF node of a communication network are discussed. In such methods a message is received from an access and mobility management function AMF node. Moreover, the message includes information regarding a radio access network RAN node with respect to a communication device. Related methods of operating RAN nodes and AMF nodes are also discussed.
    Type: Application
    Filed: June 25, 2020
    Publication date: August 10, 2023
    Inventors: Zhang FU, Gunnar MILDH, Göran RUNE, Paul SCHLIWA-BERTLING
  • Release cause for transition from connected state
    Patent number: 11723108
    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: Grant
    Filed: March 25, 2022
    Date of Patent: August 8, 2023
    Assignee: TELEFON AKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Christofer Lindheimer, Malik Wahaj Arshad, Icaro L. J. da Silva, Gunnar Mildh, Riikka Susitaival
  • Indicating RAN notification area update (RNAU) in RRC_INACTIVE state
    Patent number: 11723107
    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: August 8, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Christofer Lindheimer, Icaro L. J. Da Silva, Gunnar Mildh, Paul Schliwa-Bertling
  • UE BEHAVIOR WITH REJECTION OF RESUME REQUEST
    Publication number: 20230247706
    Abstract: Systems and methods are disclosed herein relating to wireless device behavior after rejection of a resume request triggered by a Radio Access Network (RAN) based Notification Area Update (RNAU) or upon cell reselection during resume. In some embodiments, a method of operation of a wireless device comprises transmitting, to a RAN node, a Radio Resource Control (RRC) resume request triggered by an RNAU and receiving, from the RAN node, an RRC resume reject message comprising a wait timer value in response to the RRC resume request. The method further comprises starting a wait timer initialized with the wait timer value and sending the RNAU when the wait timer has expired. Corresponding embodiments of a wireless device are also disclosed. Embodiments of a wireless device and methods of operation thereof related to the behavior of the wireless device upon performing a cell reselection during resume are also disclosed.
    Type: Application
    Filed: April 10, 2023
    Publication date: August 3, 2023
    Inventors: Gunnar Mildh, Icaro Leonardo J. da Silva
  • FIRST NODE, SECOND NODE AND METHODS PERFORMED THEREBY FOR HANDLING TRANSMISSIONS IN A COMMUNICATIONS NETWORK
    Publication number: 20230247697
    Abstract: A method performed by a first node, for handling transmission of one or more packets and/or one or more messages from a sending to a receiving node. The first node operates in a communications network having at least one intermediate node between the sending and the receiving node. The first node sends a first indication to a second node explicitly indicating whether or not at least one of: i) the one or more packets are, or are to be, duplicated over a GTP layer, ii) duplication of the packets over the GTP layer is enabled, supported and/or active, iii) one or more messages are, or are to be, duplicated over a SCTP layer between the first node and one or more next hop nodes, and iv) duplication of the messages over the SCTP layer is enabled, supported and/or active.
    Type: Application
    Filed: April 16, 2021
    Publication date: August 3, 2023
    Inventors: Gunnar MILDH, Oumer TEYEB, Filip BARAC, Ajmal MUHAMMAD, Per-Erik ERIKSSON
  • Handling Communication
    Publication number: 20230232285
    Abstract: Embodiments herein relate to, for example, a method performed by a first radio network node (12) for handling communication in a wireless communications network. The first radio network node (12) transmits a message related to handover or cell reselection of a migrating node to a second radio network node (15), wherein the message comprises data associated with the migrating node and data related to one or more other nodes directly and indirectly served by the migrating node.
    Type: Application
    Filed: June 16, 2021
    Publication date: July 20, 2023
    Inventors: Filip Barac, Oumer Teyeb, Gunnar Mildh, Paul Schliwa-Bertling, Ajmal Muhammad
  • Network Architecture, Methods, and Devices for a Wireless Communications Network
    Publication number: 20230224059
    Abstract: Methods and apparatus in a fifth-generation wireless communications, including an example method, in a wireless device, that includes receiving a downlink signal comprising an uplink access configuration index, using the uplink access configuration index to identify an uplink access configuration from among a predetermined plurality of uplink access configurations, and transmitting to the wireless communications network according to the identified uplink access configuration. The example method further includes, in the same wireless device, receiving, in a first subframe, a first Orthogonal Frequency-Division Multiplexing (OFDM) transmission formatted according to a first numerology and receiving, in a second subframe, a second OFDM transmission formatted according to a second numerology, the second numerology differing from the first numerology. Variants of this method, corresponding apparatuses, and corresponding network-side methods and apparatuses are also disclosed.
    Type: Application
    Filed: January 5, 2023
    Publication date: July 13, 2023
    Inventors: Stefan Parkvall, Janne Peisa, Gunnar Mildh, Robert Baldemair, Stefan Wager, Jonas Kronander, Karl Werner, Richard Abrahamsson, Ismet Aktas, Peter Alriksson, Junaid Ansari, Shehzad Ali Ashraf, Henrik Asplund, Fredrik Athley, Håkan Axelsson, Joakim Axmon, Johan Axnäs, Kumar Balachandran, Gunnar Bark, Jan-Erik Berg, Andreas Bergström, Håkan Björkegren, Nadia Brahmi, Cagatay Capar, Anders Carlsson, Andreas Cedergren, Mikael Coldrey, Icaro L. J. da Silva, Erik Dahlman, Ali El Essaili, Ulrika Engström, Mårten Ericson, Erik Eriksson, Mikael Fallgren, Rui Fan, Gabor Fodor, Pål Frenger, Jonas Fridén, Jonas Fröberg Olsson, Anders Furuskär, Johan Furuskog, Virgile Garcia, Ather Gattami, Fredrik Gunnarsson, Ulf Gustavsson, Bo Hagerman, Fredrik Harrysson, Ning He, Martin Hessler, Kimmo Hiltunen, Songnam Hong, Dennis Hui, Jörg Huschke, Tim Irnich, Sven Jacobsson, Niklas Jaldén, Simon Järmyr, Zhiyuan Jiang, Martin Johansson, Niklas Johansson, Du Ho Kang, Eleftherios Karipidis, Patrik Karlsson, Ali S. Khayrallah, Caner Kilinc, Göran N. Klang, Sara Landström, Christina Larsson, Gen Li, Lars Lindbom, Robert Lindgren, Bengt Lindoff, Fredrik Lindqvist, Jinhua Liu, Thorsten Lohmar, Qianxi Lu, Lars Manholm, Ivana Maric, Jonas Medbo, Qingyu Miao, Reza Moosavi, Walter Müller, Elena Myhre, Karl Norrman, Bengt-Erik Olsson, Torgny Palenius, Sven Petersson, Jose Luis Pradas, Mikael Prytz, Olav Queseth, Pradeepa Ramachandra, Edgar Ramos, Andres Reial, Thomas Rimhagen, Emil Ringh, Patrik Rugeland, Johan Rune, Joachim Sachs, Henrik Sahlin, Vidit Saxena, Nima Seifi, Yngve Selén, Eliane Semaan, Sachin Sharma, Cong Shi, Johan Sköld, Magnus Stattin, Anders Stjernman, Dennis Sundman, Lars Sundström, Miurel Isabel Tercero Vargas, Claes Tidestav, Sibel Tombaz, Johan Torsner, Hugo Tullberg, Jari Vikberg, Peter von Wrycza, Thomas Walldeen, Pontus Wallentin, Hai Wang, Ke Wang Helmersson, Jianfeng Wang, Yi-Pin Eric Wang, Niclas Wiberg, Emma Wittenmark, Osman Nuri Can Yilmaz, Ali Zaidi, Zhan Zhang, Zhang Zhang, Yanli Zheng
  • METHOD AND DEVICE FOR UPDATING A WAIT TIMER
    Publication number: 20230225007
    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: Application
    Filed: March 21, 2023
    Publication date: July 13, 2023
    Inventors: Gunnar MILDH, Icaro L.J. DA SILVA
  • Method and Arrangement in a Telecommunication System
    Publication number: 20230217243
    Abstract: Handling of UE capability information in a mobile telecommunications network wherein an eNodeB receives information regarding the UE capability information from the UE and stores the information. The eNodeB sends the UE capability information to the EPC, i.e., to an MME, which receives and stores the UE capability information. When the UE transits from idle to active state, does an initial attach, or when a part of the UE capabilities have changed, it sends a message to the eNodeB regarding the update. The eNodeB forwards the message to the MME, which sends a response associated with the previously stored UE capability information to the eNodeB. The eNodeB decides whether the UE capabilities stored in the MME is up-to-date based on the message from the UE and the response from the MME. If the UE holds updated UE capabilities the eNodeB can request updated UE capability information from the UE.
    Type: Application
    Filed: March 14, 2023
    Publication date: July 6, 2023
    Inventors: Gunnar Mildh, Ingrid Nordstrand, András Rácz, Magnus Stattin, Pontus Wallentin