Patents by Inventor Stefan Wager

Stefan Wager 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).

  • Multi-RAT Access Stratum Security
    Publication number: 20200077266
    Abstract: The present disclosure generally relates to the field of security context setup. More specifically, the present disclosure relates to techniques of supporting security context setup in a wireless communication network. A method embodiment relates to supporting security context setup in a wireless communication network, the method comprising initiating (S304), by a radio access network (RAN) element of the wireless communication network, Access Stratum (AS) security context setup for a first Radio Access Technology (RAT) and a second RAT in a common signaling procedure.
    Type: Application
    Filed: November 5, 2019
    Publication date: March 5, 2020
    Inventors: Osman Nuri Can Yilmaz, Icaro L. J. Da Silva, Karl Norrman, Paul Schliwa-Bertling, Stefan Wager
  • Secondary Node Change Signaling In Future Radio Networks
    Publication number: 20200059833
    Abstract: The invention refers to a transfer of a User Equipment context from a source secondary network node (110A) to a target secondary network node (110B) that is different than the source secondary network node, wherein the UE (105) is served by a master network node (120) and the source secondary network node (110A), the source secondary network node (110A): transmitting a first message to the target secondary network node (110B), the first message comprising a handover request, receiving a second message comprising configuration data of the target secondary network, and after receiving the second message, transmitting to the master network node a third message comprising the configuration data of the target secondary network node; the invention further referring to a master network node (120): receiving a first message from the source secondary network node, the first message comprising a request to initiate a transfer of the UE context from the source secondary network node to the target secondary network node,
    Type: Application
    Filed: November 3, 2017
    Publication date: February 20, 2020
    Inventors: Osman Nuri Can Yilmaz, Riikka Susitaival, Alexander Vesely, Stefan Wager
  • Race condition avoidance between master base station initiated secondary base station release and secondary base station initiated secondary base station change procedures
    Patent number: 10568162
    Abstract: Systems and methods are disclosed herein that relate to Dual Connectivity (DC) for a wireless device is a wireless communication network. In some embodiments, a method in a secondary node for providing, along with a master node, DC for a wireless device such that the wireless device is configured to utilize resources provided by both the master node and the secondary node in a wireless communication network is disclosed. The method comprises receiving, from the master node, a release request. The release request is a request to release a wireless device context of the wireless device or to release resources for the wireless device. The method further comprises sending a release reject to the master node. The release reject is an indication that the secondary node rejects the release request.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: February 18, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Osman Nuri Can Yilmaz, Alexander Vesely, Stefan Wager
  • Configuring Wireless Communications Resources
    Publication number: 20200045679
    Abstract: A base station, in a wireless communications system, configures first resources for data access from devices to said base station, said first resources allowing a cyclic prefix having a first length; and configures second resources for data access from devices to said base station, said second resources allowing a cyclic prefix having a second length longer than the first length. The base station transmits configuration information regarding the configured resources to at least one device. The first resources allow at least data having a first useful data period and a cyclic prefix having the first length to be received in a first period having a first predetermined duration; and the second resources allow at least data having a second useful data period and a cyclic prefix having the second length to be received in a second period having the second predetermined duration, and the second predetermined duration is an integer multiple of the first predetermined duration.
    Type: Application
    Filed: October 9, 2019
    Publication date: February 6, 2020
    Inventors: Stefan Wager, Erik Eriksson, Martin Hessler, Bengt Lindoff, Osman Nuri Can Yilmaz
  • METHODS AND APPARATUSES FOR MONITORING A RADIO LINK
    Publication number: 20200037242
    Abstract: A method for monitoring a radio link between a base station and a terminal in a wireless communication system includes adapting at least one parameter, which is used in monitoring the radio link, based on a duration of an inactive phase in which the terminal is not transmitting to and/or receiving data from the base station via the radio link.
    Type: Application
    Filed: June 9, 2015
    Publication date: January 30, 2020
    Inventors: Osman Nuri Can YILMAZ, Andreas HÖGLUND, Stefan WAGER
  • Network Architecture, Methods, and Devices for a Wireless Communications Network
    Publication number: 20200028745
    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: Application
    Filed: May 16, 2019
    Publication date: January 23, 2020
    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 Wallén, 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
  • RACE CONDITION AVOIDANCE BETWEEN MASTER BASE STATION INITIATED SECONDARY BASE STATION RELEASE AND SECONDARY BASE STATION INITIATED SECONDARY BASE STATION CHANGE PROCEDURES
    Publication number: 20200029389
    Abstract: Systems and methods are disclosed herein that relate to Dual Connectivity (DC) for a wireless device is a wireless communication network. In some embodiments, a method in a secondary node for providing, along with a master node, DC for a wireless device such that the wireless device is configured to utilize resources provided by both the master node and the secondary node in a wireless communication network is disclosed. The method comprises receiving, from the master node, a release request. The release request is a request to release a wireless device context of the wireless device or to release resources for the wireless device. The method further comprises sending a release reject to the master node.
    Type: Application
    Filed: June 14, 2018
    Publication date: January 23, 2020
    Inventors: Osman Nuri Can YILMAZ, Alexander VESELY, Stefan WAGER
  • Wireless communication system, a wireless device, network nodes, and methods therein, for changing master node for the wireless device
    Patent number: 10542473
    Abstract: A method performed in a wireless communications system for changing master node for a wireless device (WD). A first node is the master node for the WD, and second and third nodes are secondary nodes for the WD. The third node receives information that the third node is to be the master node and information to reuse a first set of existing protocol entities and context for communication with the WD. The WD receives information about a change of master node from the first node to the third node and information to reuse a second set of existing protocol entities and context for communication with the third node. The second node receives information that the third node is the master node and information to reuse a third set of existing protocol entities and context for communication with the WD. Thereby the master node for the WD is changed.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: January 21, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Rui Fan, Qingyu Miao, Stefan Wager, Osman Nuri Can Yilmaz
  • Mobility robustness in a cellular network
    Patent number: 10530639
    Abstract: The present invention relates to a method in a node of a cellular network for supporting mobility, to a method in a user equipment for supporting mobility to in the cellular network, and to corresponding devices. According to one aspect, a method for supporting mobility in a cellular network is provided. The method runs in a node for the cellular network. According to the method, the node receives from a user equipment, an information of a radio link failure of a radio link between the user equipment and the cellular network and the node receives information related to a mobility of the user equipment. Based on the received information, the node adjusts at least one mobility parameter to increase robustness of mobility. The present invention improves robustness of mobility functions in a cellular network.
    Type: Grant
    Filed: January 8, 2015
    Date of Patent: January 7, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Torsten Dudda, Angelo Centonza, Mats Folke, Stefan Wager, Emre Yavuz
  • Short PUCCH in uplink sPUCCH
    Patent number: 10516506
    Abstract: In one aspect, a wireless device receives a first data transmission from a base station in a first subframe interval and transmits HARQ feedback and/or CSI to the base station in a subsequent subframe interval, within a duration that is less than a maximum transmission duration that is possible within the subsequent subframe interval. In another aspect, a base station transmits a first data transmission to a wireless device in a first subframe interval and receives HARQ feedback and/or CSI from the wireless device in a subsequent subframe interval, within a duration that is less than a maximum transmission duration that is possible within the subsequent subframe interval.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: December 24, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Helka-Liina Määttanen, Mattias Andersson, Stefan Parkvall, Per Synnergren, Stefan Wager, Hanzhi Zhang
  • Multi-RAT access stratum security
    Patent number: 10506438
    Abstract: The present disclosure generally relates to the field of security context setup. More specifically, the present disclosure relates to techniques of supporting security context setup in a wireless communication network. A method embodiment relates to supporting security context setup in a wireless communication network, the method comprising initiating (S304), by a radio access network (RAN) element (200) of the wireless communication network, Access Stratum (AS) security context setup for a first Radio Access Technology (RAT) and a second RAT in a common signaling procedure.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: December 10, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Osman Nuri Can Yilmaz, Icaro L. J. da Silva, Karl Norrman, Paul Schliwa-Bertling, Stefan Wager
  • Method and arrangement for relaying
    Patent number: 10506450
    Abstract: Uplink-only relay and donor network node and methods therein for supporting connection of a UE in a cell associated with the network node to the uplink-only relay for uplink communication. A method in the uplink-only relay involves monitoring a relation, in terms of performance, between a direct uplink communication from the UE to the network node, and a potential relayed uplink communication from the UE to the network node via the UORN. This method further comprises indicating to the network node when the relation fulfills a condition. A method in the network node involves receiving information, from the UORN, indicating a monitored UE for which a condition is fulfilled. The condition is related to a relation, in terms of performance, between a direct uplink communication from the UE to the network node, and a potential uplink communication relayed via the UORN.
    Type: Grant
    Filed: January 16, 2012
    Date of Patent: December 10, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Stefan Wager, Niclas Wiberg
  • PDCP and flow control for split bearer
    Patent number: 10505829
    Abstract: A method in a network node is disclosed. The method comprises sending one or more packet data convergence protocol (PDCP) packet data units (PDUs) to a second network node on an internode interface, each of the one or more PDUs having an associated PDCP sequence number and an associated internode interface specific sequence number, the internode interface specific sequence numbers assigned by the network node. The method further comprises receiving feedback from the second network node.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: December 10, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Torsten Dudda, Riika Susitaival, Alexander Vesely, Stefan Wager
  • Uplink reconfiguration for split bearer in dual connectivity
    Patent number: 10499295
    Abstract: According to some embodiments, a wireless device operating in dual connectivity with a first and second network node performs a method comprising establishing an uplink radio connection from the wireless device to the first and second network nodes. The wireless device comprises first MAC and RLC modules for uplink radio communication with the first network node, second MAC and RLC modules for uplink radio communication with the second network node, and a PDCP module for communicating with the first and second RLC modules. The method further comprises communicating data for uplink transmission from the PDCP module to the first RLC module; obtaining an indication to switch transmission of uplink data from the first network node to the second network node; resetting the first RLC module and the first MAC module; and communicating data for uplink transmission from the PDCP module to the second RLC module.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: December 3, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Riikka Susitaival, Torsten Dudda, Mattias Tan Bergström, Stefan Wager
  • HANDOVER WITH ZERO MS USER PLANE INTERRUPTION
    Publication number: 20190357097
    Abstract: According to certain embodiments, disclosed is a method in a master node (MN) for minimizing user plane interruption delay. The method includes transmitting a handover request message to a secondary node (SN), receiving a handover request acknowledge message from the SN, and transmitting a reconfiguration instruction to a wireless device operating in dual connectivity with the MN and the SN. The reconfiguration instruction may include a new configuration wherein the SN is a target SN and an indication of a trigger used to switch to the new configuration.
    Type: Application
    Filed: January 31, 2018
    Publication date: November 21, 2019
    Inventors: Patrik RUGELAND, Stefan WAGER, Osman Nuri Can YILMAZ
  • Explicit Configuration of Paging and Control Channel in System Information
    Publication number: 20190349891
    Abstract: In one embodiment, a method in a user equipment (UE) includes receiving broadcasted system information from a network node. The broadcasted system information may include explicit configuration information for a communications channel. The method further includes determining a configuration of the communications channel based, at least in part, on the explicit configuration information. The explicit configuration information may be used by the user equipment to override default channel configuration information. The method may further include receiving data over the communications channel.
    Type: Application
    Filed: December 21, 2017
    Publication date: November 14, 2019
    Inventors: Johan RUNE, Pål FRENGER, Stefan WAGER
  • Method and Arrangement for Connection Re-Establishment in a Telecommunication System
    Publication number: 20190342935
    Abstract: The invention relates to a method in a user equipment and a user equipment (700) for controlling connection reestablished between said user equipment and a network. The method comprises the steps of—receiving (501) a configuration message from the network defining at least one condition; upon detection of connectivity problems (503) towards the first cell, evaluating said at least one condition (504); if said at least one condition is fulfilled for a neighboring cell (B), applying at least one special criterion for initiating connection reestablishment to said neighboring cell (505), said at least one special criterion being different from at least one criterion that is applied if said at least one condition is not fulfilled. The invention furthermore relates to a method and a arrangement in a network node (800) for controlling connection re-establishment between the network and a user equipment (700).
    Type: Application
    Filed: May 16, 2019
    Publication date: November 7, 2019
    Inventors: Stefan WAGER, Mats SÅGFORS
  • Configuring wireless communications resources
    Patent number: 10470172
    Abstract: A base station, in a wireless communications system, configures first resources for data access from devices to said base station, said first resources allowing a cyclic prefix having a first length; and configures second resources for data access from devices to said base station, said second resources allowing a cyclic prefix having a second length longer than the first length. The base station transmits configuration information regarding the configured resources to at least one device. The first resources allow at least data having a first data period and a cyclic prefix having the first length to be received in a first period having a first predetermined duration; and the second resources allow at least data having a second data period and a cyclic prefix having the second length to be received in a second period having the second predetermined duration, and the second predetermined duration is an integer multiple of the first predetermined duration.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: November 5, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Stefan Wager, Erik Eriksson, Martin Hessler, Bengt Lindoff, Osman Nuri Can Yilmaz
  • Control of channel reference signal transmission in a cellular network
    Patent number: 10455602
    Abstract: A communication device checks whether data is available in an uplink data buffer of the communication device for uplink transmission employing uplink radio resources, the uplink radio resources being previously allocated to the communication device in reoccurring time intervals. Depending on said checking, the UE controls the transmission of a channel reference signal.
    Type: Grant
    Filed: September 1, 2014
    Date of Patent: October 22, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Hanzhi Zhang, Torsten Dudda, Per Synnergren, Stefan Wager
  • Network device, terminal device and methods for facilitating handover of terminal device
    Patent number: 10440617
    Abstract: Methods respectively implemented in a network device and a terminal device for facilitating handover of the terminal device served by the network device to a target beam and/or network device. The method in the network device comprises transmitting information on configurations for a set of candidate target beams and/or network devices to the terminal device before the handover of the terminal device is triggered. The method further comprises transmitting a handover command to the terminal device to trigger the handover of the terminal device. The handover command contains an identifier for identifying, from the transmitted information on the configurations for the candidate target beams and/or network devices, the information on the configuration for the target beam and/or network device. The disclosure also provides a network device and a terminal device that perform the above methods respectively.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: October 8, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Rui Fan, Stefan Wager