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).

  • RELEASE CAUSE FOR TRANSITION FROM CONNECTED STATE
    Publication number: 20250151154
    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: January 13, 2025
    Publication date: May 8, 2025
    Inventors: Christofer Lindheimer, Malik Wahaj Arshad, Icaro L.J. da Silva, Gunnar Mildh, Riikka Susitaival
  • Handling radio resource control rejections
    Patent number: 12279120
    Abstract: A method performed by a wireless device includes receiving a Radio Resources Control Reject (RRCReject) message and determining whether to act on the RRCReject message based on a configuration of the wireless device. The method may also include receiving a configuration message that includes the configuration from a network node.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: April 15, 2025
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Icaro L. J. Da Silva, Magnus Stattin, Gunnar Mildh, Prajwol Kumar Nakarmi
  • Methods for handling periodic radio access network notification area (RNA) update configuration upon reject
    Patent number: 12279325
    Abstract: According to an aspect, a user equipment, UE, in a suspended state in a Radio Access Network, RAN, in response to expiration of a first timer, transmits an RRCResumeRequest message. The UE receives a reject message in response to the RRCResumeRequest message. In response to the reject message, the UE starts a second timer and subsequently transmits a further RRCResumeRequest message. The further RRCResumeRequest message is received by the network during a period bounded approximately by the lesser of a duration of the second timer and a period of the periodic UE event and the greater of the duration of the second timer and the period of the periodic UE event.
    Type: Grant
    Filed: December 21, 2023
    Date of Patent: April 15, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Icaro L. J. Da Silva, Gunnar Mildh
  • Handling of UE in CM-connected state with RRC inactive state
    Patent number: 12279162
    Abstract: Systems and methods for handling a wireless device in a Configuration Management (CM)-Connected state with Radio Resource Control (RRC) Inactive state are provided. In some embodiments, a method for performing a mobility transfer from a Fifth Generation network to an Evolved Packet System (EPS) network includes a 5G network node: receiving, from an EPS network node, a context request for context associated with a User Equipment (UE); determining data forwarding information associated with the UE; and sending, to the EPS network node, a context response comprising context information associated with the UE and data forwarding information associated with the UE. In this way, packet losses will be minimized leading to improved end user performance.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: April 15, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Qian Chen, Gunnar Mildh, Hans Bertil Rönneke, Patrik Rugeland, Paul Schliwa-Bertling
  • Report NSA/SA NR indicator
    Patent number: 12267737
    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 17, 2023
    Date of Patent: April 1, 2025
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Parisa Pakniat, Icaro L. J. Da Silva, Gunnar Mildh
  • Security handling for RRC resume from inactive state
    Patent number: 12267684
    Abstract: A communication system including a host computer is provided herein. The host computer may include processing circuitry configured to provide user data and a communication interface configured to forward the user data to a cellular network for transmission to a user equipment (UE). The cellular network comprises a base station having a radio interface and base station processing circuitry. The base station processing circuitry configured to store a previously active security context for the UE, receive from the UE an RRCResumeRequest message including a security token, generate a temporary security context for the UE, use the temporary security context to verify the security token, send an RRC message to the UE, if no response to the RRC message is received from the UE, discard the temporary security context and retrieve the previously active security context. Thereafter, the base station transmits the user data for a host application.
    Type: Grant
    Filed: December 5, 2023
    Date of Patent: April 1, 2025
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Gunnar Mildh, Icaro L. J. da Silva
  • Handling of Inactive Parameters Upon Release and Re-Suspend
    Publication number: 20250106932
    Abstract: A User Equipment (UE) receives a Radio Resource Control (RRC) connection release message comprising a suspend indication and first information. The UE replaces second information stored in an Access Stratum (AS) context of the UE with the first information from the RRC connection release message. The first information and the second information each comprise one or more of security context information, an Inactive Radio Network Temporary Identifier (I-RNTI), a cell identity, a physical cell identity, and/or a Cell Radio Network Temporary Identifier (C-RNTI).
    Type: Application
    Filed: December 9, 2024
    Publication date: March 27, 2025
    Inventors: Gunnar Mildh, Icaro L. J. Da Silva
  • RRC connection establishment, re-establishment, and resumption in a wireless communication system
    Patent number: 12262438
    Abstract: A wireless device (14) transmits, to a radio network node (12), a radio resource control (RRC) connection request (18) that requests the establishment, re-establishment, or resumption of an RRC connection (16). The RRC connection request (18) indicates a type of core network to which the wireless device (14) selects to connect. The wireless device (14) in some embodiments receives a response to the RRC connection request (18), based on the type of core network to which the wireless device (14) selects to connect. For example, the wireless device (14) may receive the response using a protocol stack determined based on the type of core network to which the wireless device (14) selects to connect.
    Type: Grant
    Filed: September 6, 2023
    Date of Patent: March 25, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Oscar Ohlsson, Gunnar Mildh, Malik Wahaj Arshad
  • UE frequency selection and prioritization based on network slice information
    Patent number: 12256370
    Abstract: Embodiments include methods for a user equipment (UE) operating in a radio access network (RAN) coupled to a core network (CN). Such methods include receiving, from the RAN or the CN, one or more frequency selection policy parameters (P) related to a protocol data unit (PDU) 5 session for the UE and/or a network slice associated with a PDU session for the UE. Such methods also include, based on the frequency selection policy parameters, determining one or more preferred frequencies or frequency layers for one or more mobility operations. Such methods also include performing a first one of the mobility operations on a first one of the determined preferred frequencies or frequency layers. Other embodiments include complementary methods for a 0 wireless network, and UEs and wireless networks configured to perform such methods.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: March 18, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventor: Gunnar Mildh
  • Handling of PDCP version during RRC connection re-establishment procedure
    Patent number: 12256455
    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 23, 2023
    Date of Patent: March 18, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Oumer Teyeb, Gunnar Mildh
  • Method and Apparatuses for Three Cell Group Multi-Connectivity Using Two Uplink Data Split Thresholds
    Publication number: 20250071654
    Abstract: A method performed in a wireless communication device (1500) having a data buffer and connected to three network nodes in a radio communication system includes connecting (1001) to three different cell groups where the wireless communication device is configured to use a primary transmission path in a first cell group of the cell groups, a secondary transmission path in a second cell group of the cell groups, and a tertiary transmission path in a third cell group of the cell groups; receiving (1003) a configuration having first and second data split threshold values for modifying a data transmission path; and transmitting data via only the primary transmission path (1007), via only the primary transmission path and the secondary transmission path (1011) and via the primary transmission path, the secondary transmission path, and the tertiary transmission path (1013) based on the first and second data split threshold values.
    Type: Application
    Filed: December 20, 2021
    Publication date: February 27, 2025
    Inventors: Mårten Ericson, Patrik Rugeland, Gunnar Mildh, Stefan Wager
  • Release cause for transition from connected state
    Patent number: 12232205
    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: June 14, 2023
    Date of Patent: February 18, 2025
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Christofer Lindheimer, Malik Wahaj Arshad, Icaro L. J. da Silva, Gunnar Mildh, Riikka Susitaival
  • Network architecture, methods, and devices for a wireless communications network
    Patent number: 12231284
    Abstract: Methods and apparatus in a fifth-generation wireless communications network, including an example method, in a wireless device, that includes determining a reporting quality threshold for a parameter related to channel state information (CSI); performing a measurement for each of a plurality of beams from a first predetermined set of beams for evaluation; evaluating the measurement for each of the plurality of beams against the reporting quality threshold; discontinuing the performing and evaluating of measurements in response to determining that the reporting quality threshold is met for one of the beams, such that one or more beams in the first predetermined set of beams are not measured and evaluated; and reporting, to the wireless communications network, CSI for the one of the beams.
    Type: Grant
    Filed: June 8, 2022
    Date of Patent: February 18, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    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, Bo Lincoln, 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, Johan Nilsson, 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, Anders Wallen, 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
  • Integrity Protection of Radio Resource Control Message
    Publication number: 20250039671
    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 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: October 11, 2024
    Publication date: January 30, 2025
    Inventors: Icaro Leonardo Da Silva, Prajwol Kumar Nakarmi, Gunnar Mildh, Magnus Stattin
  • Handling of inactive parameters upon release and re-suspend
    Patent number: 12200806
    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 7, 2023
    Date of Patent: January 14, 2025
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Gunnar Mildh, Icaro L. J. Da Silva
  • Handling re-establishment rejection
    Patent number: 12200794
    Abstract: A method by a network node is provided for handling a re-establishment request. The method includes receiving, from a wireless device, a first request for re-establishment of a connection with the network node in a first cell. The network node determines that a load on the network node exceeds a threshold amount. In response to determining that the load on the network node exceeds the threshold amount, the network node ignores the first request for re-establishment.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: January 14, 2025
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Oumer Teyeb, Gunnar Mildh, Alessio Terzani, Icaro L. J. Da Silva
  • Methods for Suspending Inactive when Resuming and Resuming Inactive when Suspending
    Publication number: 20250016874
    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: September 20, 2024
    Publication date: January 9, 2025
    Inventors: Icaro L.J. da Silva, Gunnar Mildh
  • Determining security keys
    Patent number: 12192832
    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: Grant
    Filed: September 30, 2020
    Date of Patent: January 7, 2025
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Patrik Rugeland, Gunnar Mildh, Julien Muller
  • Network Architecture, Methods, and Devices for a Wireless Communications Network
    Publication number: 20240421931
    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 2, 2024
    Publication date: December 19, 2024
    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
  • Integrity protection of radio resource control message
    Patent number: 12143820
    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: Grant
    Filed: November 10, 2020
    Date of Patent: November 12, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Icaro Leonardo Da Silva, Prajwol Kumar Nakarmi, Gunnar Mildh, Magnus Stattin