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).

  • Patent number: 10367677
    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: May 13, 2016
    Date of Patent: July 30, 2019
    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, Rul Fan, Gabor Fodor, Pål Frenger, Jonas Fridén, Jonas Fröberg Olsson, Anders Furuskár, 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, Yanil Zheng
  • Publication number: 20190215802
    Abstract: The embodiments of the present invention relate to apparatuses and methods for resource management in a multi-carrier system wherein a plurality of component carriers (CCs) is defined per cell. According to a method in an apparatus corresponding to a radio base station, a message is assembled comprising information on the structure of the cell served by the radio base station; the information including one or more CCs used in the cell that is/are available for a user equipment for performing initial access in the cell. The method also comprises, transmitting the assembled message to the user equipment and indicating to the user equipment to what resources to use for random access in the cell. The exemplary embodiments of the present invention also relates to a method in the user equipment, to a radio base station and to a user equipment.
    Type: Application
    Filed: March 18, 2019
    Publication date: July 11, 2019
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Stefan Wager, Stefan Parkvall, Magnus Stattin, Ghyslain Pelletier
  • Publication number: 20190200253
    Abstract: According to an aspect, one or more network nodes of a wireless communication system sends, to a wireless device operating in the wireless communication system, mobility reference signal (MRS) configuration information, the MRS configuration information specifying one or more parameters for each of a plurality of MRS configurations. The network node subsequently sends, to the wireless device, an activation command indicating that at least a first one of the MRS configurations is to be used by the wireless device, the activation command including an index identifying the first one of the MRS configurations from among the plurality of MRS configurations. The wireless device receives the MRS configuration information and the activation command. The wireless device searches for at least one MRS specified by the first one of the MRS, responsive to the activation command and performs at least one measurement on the at least one MRS.
    Type: Application
    Filed: February 28, 2019
    Publication date: June 27, 2019
    Inventors: Osman Nuri Can Yilmaz, Rasmus Axén, Rui Fan, Stefan Wager
  • Patent number: 10334621
    Abstract: Depending on data (110) available in an uplink data buffer (400) of a communication device (10) for uplink transmission and further depending on uplink radio resources previously allocated to the communication device (10) for the uplink transmission in reoccurring time intervals, a fraction (111-1) of the data (110) available in the uplink data buffer (400) is determined. A buffer status report is sent to the cellular network. The buffer status report indicates the determined fraction (111-1) of the data (110).
    Type: Grant
    Filed: September 1, 2014
    Date of Patent: June 25, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Hanzhi Zhang, Torsten Dudda, Per Synnergren, Stefan Wager
  • Publication number: 20190174353
    Abstract: A method for dynamic link selection that comprises providing at least two wireless links between one or more network nodes and a wireless device. The at least two wireless links associated with at least two different radio access technologies. The method additionally includes obtaining control data to be sent to a first network node of the one or more network nodes. The control data is associated with a first radio access technology. The method additionally includes selecting one or more wireless links from among the at least two wireless links. The one or more links selected based on a first selection parameter. The one or more selected wireless links are to be used for the transmission of the control data to the first network node. The one or more selected wireless links comprise at least a first wireless link associated with a second radio access technology.
    Type: Application
    Filed: August 14, 2017
    Publication date: June 6, 2019
    Inventors: Osman Nuri Can YILMAZ, Stefan WAGER, Riikka SUSITAIVAL
  • Publication number: 20190174366
    Abstract: A method for resuming a radio connection for a wireless de-vice that is moving from a first cell with a first Radio Access technology (RAT) to a second cell with a second RAT, while being in an inactive state, is provided. The method comprises: receiving a resume identifier from a first network node in the first cell; sending, to a second network node in the second cell, a request to resume the radio connection, the request comprising the received resume identifier; and in response to sending the request, receiving a resume connection message from the second network node in the second cell. Also, a wireless device for carrying out this method is provided.
    Type: Application
    Filed: August 9, 2017
    Publication date: June 6, 2019
    Inventors: Riikka SUSITAIVAL, Gunnar MILDH, Stefan WAGER
  • Patent number: 10306694
    Abstract: The invention relates to a method in a user equipment and a user equipment (700) for controlling connection re-establishment 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 re-establishment 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 an arrangement in a network node (800) for controlling connection re-establishment between the network and a user equipment (700).
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: May 28, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Stefan Wager, Mats Sågfors
  • Publication number: 20190150037
    Abstract: A wireless device is configured to support connections to one or more serving cells in a first radio access network (RAN), using a first radio access technology (RAT) and to one or more serving cells in a second RAN, using a second RAT that differs from the first RAT. The wireless device receives one or more handover commands as part of a handover of the wireless device to a base station in the first RAN, and determines, based on the one or more handover commands, that the wireless device is to revert from a currently configured Packet Data Convergence Protocol (PDCP) configuration to a PDCP configuration associated with the first RAT. The wireless device then reverts to the PDCP configuration associated with the first RAT, in response to said determining.
    Type: Application
    Filed: November 7, 2018
    Publication date: May 16, 2019
    Inventors: Gunnar Mildh, Oumer Teyeb, Stefan Wager
  • Patent number: 10292041
    Abstract: Methods and apparatus for improving the reporting of mobility information are disclosed. An example method, suitable for implementation in a mobile terminal such as an LTE UE, begins with the detecting of a transition from idle state to connected state. The mobile terminal subsequently transmits mobility information to the network in response to or in connection with the transition. The mobility information sent to the network includes one or more of several information elements or information types, including a list of recently visited cells, including information specifying a time-of-stay in each cell, or timestamp information that can be used to derive the mobile terminal's time in each cell. GPS-based speed information or other generic speed information may be included. Complementary methods for implementation in a base station and corresponding apparatus are also disclosed.
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: May 14, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Stefan Wager, Mats Folke, Stefan Wänstedt, Henning Wiemann, Emre Yavuz
  • Publication number: 20190104445
    Abstract: The present disclosure generally relates to the field of Radio Resource Control (RRC). More specifically, the present disclosure relates to techniques of supporting and initiating RRC connection establishment in a wireless communication network. A method embodiment relates to supporting RRC connection establishment in a wireless communication network and comprises setting up context information during a first RRC connection establishment procedure to establish a first RRC connection towards a radio access network element (200) of the wireless communication network implementing a first Radio Access Technology (RAT). The context information is associated with a wireless communication device (100) of the wireless communication network and is usable for a second RRC connection establishment procedure to establish a second RRC connection towards a radio access network element of the wireless communication network implementing a second RAT.
    Type: Application
    Filed: September 27, 2018
    Publication date: April 4, 2019
    Inventors: Osman Nuri Can Yilmaz, Elena Myhre, Jose Luis Pradas, Paul Schliwa-Bertling, Stefan Wager
  • Patent number: 10244419
    Abstract: According to an aspect, one or more network nodes of a wireless communication system sends, to a wireless device operating in the wireless communication system, MRS configuration information, the MRS configuration information specifying one or more parameters for each of a plurality of MRS configurations. The network node subsequently sends, to the wireless device, an activation command indicating that at least a first one of the MRS configurations is to be used by the wireless device, the activation command including an index identifying the first one of the MRS configurations from among the plurality of MRS configurations. The wireless device receives the MRS configuration information and the activation command. The wireless device searches for at least one MRS specified by the first one of the MRS, responsive to the activation command and performs at least one measurement on the at least one MRS.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: March 26, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Osman Nuri Can Yilmaz, Rasmus Axén, Rui Fan, Stefan Wager
  • Patent number: 10243706
    Abstract: The invention relates to a wireless device, network nodes and methods therein for handling interference. A method in a wireless device comprises receiving an Instant Uplink Access, IUA, grant from the first network node, which indicates at least a periodicity of a semi-persistent scheduling. The method further comprises, when having information to be transmitted in the UL to the first network node: determining whether being scheduled for UL transmission by the second network node in a resource associated with the IUA grant or not. The method further comprises: when not being scheduled: transmitting UL information to the first network node in the resource associated with IUA; and, when being scheduled: refraining from transmitting the UL information to the first network node in the resource associated with IUA.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: March 26, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Antti Ratilainen, Helka-Liina Määttanen, Vesa Virkki, Stefan Wager
  • Patent number: 10237851
    Abstract: The embodiments of the present invention relate to apparatuses and methods for resource management in a multi-carrier system wherein a plurality of component carriers (CCs) is defined per cell. According to a method in an apparatus corresponding to a radio base station, a message is assembled comprising information on the structure of the cell served by the radio base station; the information including one or more CCs used in the cell that is/are available for a user equipment for performing initial access in the cell. The method also comprises, transmitting the assembled message to the user equipment and indicating to the user equipment to what resources to use for random access in the cell. The exemplary embodiments of the present invention also relates to a method in the user equipment, to a radio base station and to a user equipment.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: March 19, 2019
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Stefan Wager, Stefan Parkvall, Magnus Stattin, Ghyslain Pelletier
  • Publication number: 20190007925
    Abstract: Embodiments herein relate to a method performed by a network node (13) for handling communication of a wireless device (10) in a wireless communication network (1). The network node (13), such as an MME, pages the wireless device (10) using a first paging channel; and pages the wireless device (10) using a second paging channel, wherein paging the wireless device (10) using the first paging channel comprises selecting one or more radio network nodes to page the wireless device (10) using the first paging channel based on information relating to current knowledge of a location of the wireless device (10).
    Type: Application
    Filed: April 13, 2017
    Publication date: January 3, 2019
    Inventors: Pål Frenger, Johan Rune, Stefan Wager
  • Publication number: 20190007328
    Abstract: Methods, nodes, a wireless communication device and computer programs to be usable in association with controlling transmission of at least one data unit via a first link between a first access node and a wireless communication device and via a second link between the first access node and the wireless communication device via the second access node are described. In one embodiment, the method may be performed by the first access node and may comprise receiving first transmission delay information indicative of a transmission delay of the first link and/or second transmission delay information indicative of the second link, and controlling the transmission of said data unit based on the first and/or second transmission delay information.
    Type: Application
    Filed: August 13, 2018
    Publication date: January 3, 2019
    Inventors: Reem Karaki, Torsten Dudda, Hanzhi Zhang, Torbjörn Wigren, Helka-Liina Määttanen, Stefan Wager
  • Publication number: 20190007268
    Abstract: A method performed in a wireless device for handling connectivity to two network nodes. The method comprises receiving, from a first network node, a radio resource configuration message, the radio resource configuration message indicating a change in configuration of a connection towards a second network node; applying the change in configuration towards the second network node in response to the radio resource configuration message; and initiating a random access procedure towards the second network node after applying the change in configuration. The disclosure relates to corresponding wireless device, and to methods in network nodes, network nodes, computer programs and computer program products.
    Type: Application
    Filed: September 10, 2018
    Publication date: January 3, 2019
    Inventors: Stefan Wager, Angelo Centonza, Mats Folke, Fredrik Gunnarsson, Riikka Susitaival, Alexander Vesely
  • Patent number: 10171224
    Abstract: Underlay network node and macro base station and methods therein for enabling avoidance of interference in a cell extension area associated with an uplink/downlink imbalance. The underlay network node is assumed to be associated with a cell area A, and a cell extension area B, where the cell extension area B has an uplink/downlink imbalance in relation to a neighboring base station and the network node. The method in the underlay network node involves serving a UE in both uplink and downlink when the UE is located in cell area A. The method further involves serving a UE only in the uplink when the UE is located in cell extension area B, thus enabling avoidance of interference related to communication of a UE located in said cell extension area B.
    Type: Grant
    Filed: January 16, 2012
    Date of Patent: January 1, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Fredrik Gunnarsson, Gunnar Mildh, Stefan Parkvall, Stefan Wager
  • Publication number: 20180368177
    Abstract: A communication device receives an uplink grant from a node of a cellular network. The uplink grant indicates uplink radio resources allocated to the communication device in reoccurring time intervals. For each of these time intervals, the communication device selects between an active mode and an inactive mode. In the active mode the communication device performs an uplink transmission in the allocated uplink radio resources. In the inactive mode the communication device performs no uplink transmission in the allocated uplink radio resources.
    Type: Application
    Filed: August 28, 2018
    Publication date: December 20, 2018
    Inventors: Torsten Dudda, Stefan Parkvall, Per Synnergren, Stefan Wager, Hanzhi Zhang
  • Publication number: 20180367991
    Abstract: Techniques for the secure generation of a set of encryption keys to be used for communication between a wireless terminal and an assisting base station in a dual-connectivity scenario. An example method includes generating an assisting security key for the assisting base station, based on an anchor base station key. The generated assisting security key is sent to the assisting base station, for use by the assisting base station in encrypting data traffic sent to the wireless terminal or in generating one or more additional assisting security keys for encrypting data traffic sent to the wireless terminal while the wireless terminal is dually connected to the anchor base station and the assisting base station. The anchor base station key, or a key derived from the anchor base station key, is used for encrypting data sent to the wireless terminal by the anchor base station.
    Type: Application
    Filed: August 24, 2018
    Publication date: December 20, 2018
    Inventors: Stefan Wager, Niklas Johansson, Karl Norrman, Oumer Teyeb, Vesa Virkki
  • Publication number: 20180332657
    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: Application
    Filed: November 18, 2015
    Publication date: November 15, 2018
    Inventors: Rui FAN, Qingyu MIAO, Stefan WAGER, Osman Nuri Can YILMAZ