Patents by Inventor Kaj Johansson
Kaj Johansson 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).
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Patent number: 11863323Abstract: A wireless device and an Access and Mobility Management Function (AMF) and methods performed by a wireless device and an AMF, respectively.Type: GrantFiled: June 3, 2022Date of Patent: January 2, 2024Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Ivo Sedlacek, Kaj Johansson, Mikael Wass
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Publication number: 20230239938Abstract: Methods for determining a default network slice are provided. More specifically, the methods include determining a default Single Network Slice Selection Assistance Information (S-NSSAI) that identifies the default network slice for establishing a Protocol Data Unit (PDU) session for an application in a wireless device without an S-NSSAI association. Various embodiments for determining the S-NSSAI are also disclosed herein. By determining the default network slice, it is possible to eliminate existing ambiguity associated with establishing a PDU session for application without S-NSSAI association, thus helping to reduce implementation complexity in a wireless device and/or a core network node.Type: ApplicationFiled: June 29, 2021Publication date: July 27, 2023Inventors: Peter Hedman, Kaj Johansson
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Publication number: 20230232356Abstract: A method of operating a core network node in a communication system includes receiving, at a first network function, a registration message from a radio access network node to register a user equipment, UE, and, responsive to the registration message, transmitting a request for information on whether network slices associated with the UE are subject to Network Slice-Specific Authentication and Authorization, NSSAA. Responsive to the request, the method receives a response message including Single-Network Slice Selection Assistance Information, S-NSSAI, information associated with the UE, the S-NSSAI information including NSSAA status information relating to the S-NSSAI information, and determines whether to initiate an NSSAA procedure with the UE based on the S-NSSAI information. Related network nodes are disclosed.Type: ApplicationFiled: November 5, 2020Publication date: July 20, 2023Inventors: Kaj JOHANSSON, Peter HEDMAN, David CASTELLANOS ZAMORA
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Publication number: 20230189121Abstract: A method, system and apparatus for subscription based service restriction are disclosed. In one embodiment, a network node is configured to determine that a wireless device (WD) is service area restricted when the WD is in an area defined as a non-allowed area according to subscription data associated with the WD; and provide support for the WD for at least one service that is service area restricted in the non-allowed area based at least in part on at least one of the subscription data associated with the WD and an operator policy. In one embodiment, a wireless device (WD) is configured to operate in the non-allowed area using at least one service that is service area restricted in the non-allowed area based at least in part on at least one of the subscription data associated with the WD and an operator policy.Type: ApplicationFiled: May 14, 2021Publication date: June 15, 2023Inventors: Peter HEDMAN, Mikael WASS, Kaj JOHANSSON, Qian CHEN
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Publication number: 20230156653Abstract: Disclosed herein is a method performed by a wireless communication device, the method comprising: receiving, from a network node, a configuration update command comprising an indication as to whether the wireless communication device is to maintain an existing non-access stratum, NAS, connection; and performing one or more actions in accordance with the configuration update command.Type: ApplicationFiled: April 6, 2021Publication date: May 18, 2023Inventors: Mikael Wass, Kaj Johansson, Qian Chen
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Publication number: 20230073439Abstract: Methods and apparatuses are disclosed for public land mobile network (PLMN) rate control. According to an embodiment, a network function determines whether a value of PLMN rate control applicable to a terminal device has been changed. When determining that the value of PLMN rate control has been changed, the network function sends the changed value of PLMN rate control to the terminal device.Type: ApplicationFiled: September 13, 2022Publication date: March 9, 2023Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Shiyu YANG, Zhiwei QU, Kaj JOHANSSON
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Publication number: 20220407624Abstract: A wireless device and an Access and Mobility Management Function (AMF) and methods performed by a wireless device and an AMF, respectively.Type: ApplicationFiled: June 3, 2022Publication date: December 22, 2022Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Ivo SEDLACEK, Kaj JOHANSSON, Mikael WASS
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Publication number: 20220394607Abstract: Network slice configuration update methods for providing a user equipment (UE) registered with (or attempting to register with) a Public Land Mobile Network (PLMN) the most up-to-date Configured NSSAI for the PLMN.Type: ApplicationFiled: June 21, 2022Publication date: December 8, 2022Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Peter RAMLE, Kaj JOHANSSON, Peter HEDMAN
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Patent number: 11451996Abstract: Methods and apparatuses are disclosed for public land mobile network (PLMN) rate control. According to an embodiment, a network function determines whether a value of PLMN rate control applicable to a terminal device has been changed. When determining that the value of PLMN rate control has been changed, the network function sends the changed value of PLMN rate control to the terminal device.Type: GrantFiled: March 10, 2020Date of Patent: September 20, 2022Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Shiyu Yang, Zhiwei Qu, Kaj Johansson
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Patent number: 11388661Abstract: Network slice configuration update methods for providing a user equipment (UE) registered with (or attempting to register with) a Public Land Mobile Network (PLMN) the most up-to-date Configured NSSAI for the PLMN.Type: GrantFiled: April 12, 2019Date of Patent: July 12, 2022Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Peter Ramle, Kaj Johansson, Peter Hedman
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Patent number: 11368254Abstract: Embodiments herein relate to a wireless device and an Access and Mobility Management Function, AMF, and methods performed by a wireless device and an AMF, respectively.Type: GrantFiled: October 16, 2018Date of Patent: June 21, 2022Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Ivo Sedlacek, Kaj Johansson, Mikael Wass
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Publication number: 20220167450Abstract: A method of operating a session management network of a telecommunications network is disclosed. The method includes sending to a management network node an accept of a session establishment request of a wireless device; and receiving message from the management network node, including a session connectivity rejection message sent by a radio access network node serving the wireless device. The session connectivity rejection message indicates a rejection of the acceptance of the session establishment request of the wireless device. The method further includes determining that the radio access network did not send the accept of the session establishment request to the wireless device based on the session connectivity rejection message creating a session establishment rejection message; and transmitting the session establishment rejection message toward the wireless device.Type: ApplicationFiled: February 11, 2020Publication date: May 26, 2022Inventors: Ivo Sedlacek, Peter Hedman, Kaj Johansson, Nianshan Shi
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Publication number: 20220151004Abstract: Avoiding transmission of unnecessary 5G session management (SM) messages in a cellular communications system is disclosed. In one embodiment, a method performed by a Session Management Function (SMF) comprises determining that a non-access stratum (NAS) message carrying a Protocol Data Unit (PDU) session establishment accept indication was not sent to a user equipment (UE) by a radio access network (RAN). The method further comprises, responsive to determining that the NAS message carrying the PDU session establishment accept indication was not sent to the UE, sending a PDU session establishment reject indication to the UE. In some embodiments, determining that the NAS message carrying the PDU session establishment accept indication was not sent to the UE comprises receiving an Nsmf_PDUSession_UpdateSMContext request comprising a cause, and determining that the NAS message carrying the PDU session establishment accept indication was not sent to the UE based on the cause.Type: ApplicationFiled: February 18, 2020Publication date: May 12, 2022Inventors: Ivo Sedlacek, Peter Hedman, Paul Schliwa-Bertling, Kaj Johansson, Nianshan Shi
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Publication number: 20220095148Abstract: Methods and apparatuses are disclosed for public land mobile network (PLMN) rate control. According to an embodiment, a network function determines whether a value of PLMN rate control applicable to a terminal device has been changed. When determining that the value of PLMN rate control has been changed, the network function sends the changed value of PLMN rate control to the terminal device.Type: ApplicationFiled: March 10, 2020Publication date: March 24, 2022Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Shiyu YANG, Zhiwei QU, Kaj JOHANSSON
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Publication number: 20210360519Abstract: Network slice configuration update methods for providing a user equipment (UE) registered with (or attempting to register with) a Public Land Mobile Network (PLMN) the most up-to-date Configured NSSAI for the PLMN.Type: ApplicationFiled: April 12, 2019Publication date: November 18, 2021Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Peter RAMLE, Kaj JOHANSSON, Peter HEDMAN
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Publication number: 20210194634Abstract: Embodiments herein relate to a wireless device and an Access and Mobility Management Function, AMF, and methods performed by a wireless device and an AMF, respectively.Type: ApplicationFiled: October 16, 2018Publication date: June 24, 2021Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Ivo SEDLACEK, Kaj JOHANSSON, Mikael WASS
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Patent number: 10993272Abstract: Systems and methods for efficient delivery of infrequent small data are provided. A system for providing communication infrequent small Protocol Data Units (PDUs) to/from a UE includes an Access Node (AN); a session management functions node; and a User Plane (UP) functions entity. The session management functions node receives a session setup request and selects the UP functions entity and a tunnel identifier associated with the UE. In case of an IP PDU session type, trigger an establishment of a UP. The UP functions entity creates a UE context for the UE; stores the UE context for the UE; completes an establishment in a Control Plane (CP); and provides the AN with uplink tunnel information. The AN stores the UE context and transmits a session setup response to the UE. In this way, an improved ratio of the signalling/user data relation may be obtained for devices sending infrequent small data.Type: GrantFiled: October 16, 2017Date of Patent: April 27, 2021Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Kaj Johansson, Gunnar Rydnell, Stefan Rommer, Jan Backman
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Patent number: 9890756Abstract: A heating and cooling system for an internal combustion engine comprising a heat storage circuit and a radiator circuit, and a method of controlling such a system are disclosed. The heat storage circuit comprises a heat storage container in which engine coolant is stored and allowed to flow into and out of. The radiator circuit comprises a radiator for flow of the engine coolant, and the radiator has a radiator inlet connected via an upstream radiator conduit to a coolant outlet of the engine, and a radiator outlet connected via a downstream radiator conduit to a coolant inlet of the engine. A bypass conduit is connected between the upstream radiator conduit and the downstream radiator conduit to allow coolant to bypass the radiator. A thermostat controlled valve is arranged in the upstream radiator conduit at a coolant outlet of the engine and connected to the bypass conduit.Type: GrantFiled: November 6, 2014Date of Patent: February 13, 2018Assignee: Volvo Car CorporationInventors: Stefan Mats Sundemo, Kaj Johansson, John Nilsson, Rikard Rigdal, Bengt Salekarr
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Publication number: 20180042057Abstract: Systems and methods for efficient delivery of infrequent small data are provided. A system for providing communication infrequent small Protocol Data Units (PDUs) to/from a UE includes an Access Node (AN); a session management functions node; and a User Plane (UP) functions entity. The session management functions node receives a session setup request and selects the UP functions entity and a tunnel identifier associated with the UE. In case of an IP PDU session type, trigger an establishment of a UP. The UP functions entity creates a UE context for the UE; stores the UE context for the UE; completes an establishment in a Control Plane (CP); and provides the AN with uplink tunnel information. The AN stores the UE context and transmits a session setup response to the UE. In this way, an improved ratio of the signalling/user data relation may be obtained for devices sending infrequent small data.Type: ApplicationFiled: October 16, 2017Publication date: February 8, 2018Inventors: Kaj Johansson, Gunnar Rydnell, Stefan Rommer, Jan Backman
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Patent number: 9715974Abstract: An electrical multiple stage switch assembly includes an assembly casing, a first component carrier, and at least one multiple stage switch including a first disc contact, at least one second disc contact, and an actuator. The first and second disc contacts are positioned with their centers substantially aligned, and the first and second disc contact are adapted to flex into an electrical connection when the actuator is pressed and to flex back into a non-electrical connection when the actuator is released. A controlling member includes a controlling part for each switch, and the controlling part includes a spacing member adapted to limit the smallest possible distance between adjacent component carriers.Type: GrantFiled: June 3, 2016Date of Patent: July 25, 2017Assignee: SCANRECO ABInventors: Vedran Sikiric, Jonas Lorander, Axel Svensson, Carl Moberg, Kaj Johansson, Daniel Bodin, Zoltan Palankai