Patents by Inventor Johan Furuskog

Johan Furuskog 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).

  • Uplink subframe shortening in time-division duplex (TDD) systems
    Patent number: 10517112
    Abstract: A guard period for switching between uplink and downlink subframes is created by shortening an uplink subframe, i.e., by not transmitting during one or more symbol intervals at the beginning of the subframe interval. A grant message includes signaling indicating when a shortened subframe should be transmitted. An example method is implemented in a first wireless node configured to transmit data in transmit subframes occurring at defined subframe intervals and having a predetermined number of symbol intervals. This example method includes determining (1620) that a transmit subframe is to be shortened, relative to the predetermined number of symbol intervals and, in response to this determination, shortening (1630) transmission of the transmit subframe by not transmitting during a beginning portion of the subframe interval for the transmit subframe and transmitting during the remainder of the subframe interval.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: December 24, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Henrik Sahlin, Johan Furuskog, Stefan Parkvall, Qiang Zhang
  • Radio-network node, wireless device and methods performed therein
    Patent number: 10517113
    Abstract: Embodiments herein relate to method performed by a radio-network node for handling a data transmission, from a wireless device to the radio-network node, in a wireless communication network. The radio-network node schedules one or more resources for carrying an uplink data transmission from the wireless device over a channel, and for carrying a feedback transmission, of a downlink data transmission from the radio-network node, over the same channel. The radio-network node transmits a control message to the wireless device, which control message indicates the one or more resources scheduled for carrying the uplink data transmission and the feedback transmission over the same channel.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: December 24, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Håkan Andersson, Andreas Bergström, Mattias Frenne, Johan Furuskog, Martin Hessler, Niclas Wiberg, Qiang Zhang
  • Method for indicating a transmission time offset of a feedback message
    Patent number: 10516463
    Abstract: A method performed by a radio-network node for handling a data transmission in a number of subframes from the radio-network node to a wireless device in a wireless communication network. The radio-network node transmits data over the number of subframes to the wireless device. Each subframe comprises a control part associated with the data of the subframe. Each respective control part comprises a feedback index indicating a transmission time offset of a feedback message. The feedback message is to comprise a respective feedback indication of the number of subframes to be transmitted simultaneously from the wireless device to the radio-network node in the feedback message.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: December 24, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Niclas Wiberg, Andreas Bergström, Martin Hessler, Qiang Zhang, Mattias Frenne, Johan Furuskog, Håkan Andersson
  • BEAM BASED UPLINK (UL) POWER CONTROL
    Publication number: 20190387478
    Abstract: Independent power-control procedures per beam-pair link (BPL). In one embodiment, such a power-control procedure comprises: 1) an open-loop part based on the estimated DL path loss for the active and back-up (or “non-active”) BPLs in the UE and 2) a closed-loop part where the UL power-control adjustment commands are transmitted from the network and accumulated in the UE independently per active BPL. The UL transmit power is determined from the power-control procedure associated with the active BPL scheduled for transmission.
    Type: Application
    Filed: December 14, 2017
    Publication date: December 19, 2019
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Tomas SUNDIN, Håkan ANDERSSON, Mattias FRENNE, Johan FURUSKOG, Johan KAREDAL, John SKÖRDEMAN, Niclas WIBERG, Qiang ZHANG
  • EPDCCH search space design
    Patent number: 10506570
    Abstract: Techniques for supporting both localized and frequency-distributed control channel messages in the same enhanced control channel region are disclosed. An example method begins with receiving (2010) a downlink signal comprising an enhanced control region consisting of at least two sets of physical resource block (PRB) pairs. The method continues with the forming (2020) of one or more distributed enhanced control-channel elements (eCCEs) from a first set of PRB pairs by aggregating physical layer building blocks from multiple PRB pairs to form each distributed eCCE. One or more localized eCCEs are formed (2030) from a second set of PRB pairs by aggregating physical layer building blocks such that each of the localized eCCEs is formed from physical layer building blocks from within a single PRB pair of the second set. Control channel message candidates are formed (2050) from the distributed eCCEs and localized eCCEs, respectively, and decoded (2060).
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: December 10, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Mattias Frenne, Johan Furuskog, Havish Koorapaty, Daniel Larsson
  • Resource scheduling of uplink resources
    Patent number: 10492217
    Abstract: The present embodiments herein provide methods, apparatuses and a system for the purpose of scheduling resources to a UE (11) by a network node (12). The UE or CE (11) is configured to receive (210), from the network node (12), a control message, comprising information about a resource allocation as well as an indicator indicating whether a single-subframe scheduling scheme or a multi-subframe scheduling scheme. The CE (11) then retrieves the indicator and act according the information associated with the indicator.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: November 26, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Håkan Andersson, Andreas Bergström, Mattias Frenne, Johan Furuskog, Stefan Parkvall, Qiang Zhang
  • Methods, network node and wireless terminal for beam tracking when beamforming is employed
    Patent number: 10484076
    Abstract: A network node (100), a wireless terminal (102) and methods therein, for supporting beam tracking in the wireless terminal (102) when a selected network beam (Bc) and a selected terminal beam (Tc) are used. The network node (100) identifies a set of candidate network beams (B) having spatial characteristics similar to the selected network beam (Bc), and signals the candidate network beams to the wireless terminal (102). When the network node (100) transmits beam reference signals in the candidate network beams using beam sweeping, the wireless terminal (102) measures received power using different candidate terminal beams (T) and estimates received power of combinations of beam reference signal and candidate terminal beam that have not been measured, based on the measured combinations of beam reference signal and candidate terminal beam.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: November 19, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Johan Furuskog, Håkan Andersson, Mattias Frenne, Johan Kåredal, John Skördeman, Tomas Sundin, Niclas Wiberg, Qiang Zhang
  • Radio-network node, wireless device and methods performed therein
    Patent number: 10476714
    Abstract: Embodiments herein relate to a method performed by a radio-network node (12) for handling access to the radio-network node (12) from a wireless device (10) in the wireless communication network (1). The radio-network node determines one or more preamble configuration parameters indicating a length of a preamble for a physical random-access channel, PRACH, for the wireless device (10) based on one or more signal strength or quality measurements, and/or a load in the wireless communication network (1). The radio network node further transmits an indication of the determined one or more preamble configuration parameters to the wireless device.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: November 12, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Qiang Zhang, Håkan Andersson, Mattias Frenne, Johan Furuskog, Niclas Wiberg
  • Network node, a wireless device and methods therein for handling automatic repeat requests (ARQ) feedback information
    Patent number: 10469213
    Abstract: Embodiments herein relate to a method performed by a network node (110) in a wireless communications network (100) for handling Automatic Repeat reQuest, ARQ, feedback information from a wireless device (121) relating to downlink transmissions from the network node (110). The network node (110) obtains an indication of a downlink processing delay for the ARQ feedback information from the wireless device (121). Then, the network node (110) considers the ARQ feedback information relating to a downlink transmission from the wireless device (121) to be invalid when, according to the obtained indication of a downlink processing delay, the downlink transmission has not been processed by the wireless device (121). Embodiments of the network node (110) are also described.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: November 5, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Andreas Bergström, Håkan Andersson, Johan Furuskog, Niclas Wiberg, Qiang Zhang
  • Method for dynamic CSI feedback
    Patent number: 10448274
    Abstract: Systems and methods for providing Channel State Information (CSI) feedback in a cellular communications network are disclosed. In some embodiments, a base station of a cellular communications network disables inter-subframe channel interpolation of CSI-RS estimates across subframes at the wireless device and receives one or more CSI reports from the wireless device that are generated by the wireless device with inter-subframe channel interpolation of CSI-RS estimates across subframes disabled in response to the base station disabling inter-subframe channel interpolation of CSI-RS estimates across subframes at the wireless device. In this manner, CSI feedback is improved particularly in embodiments in which the base station transmits a beamformed CSI-RS resource(s) and reuses the same CSI-RS resource(s) for different beams over time.
    Type: Grant
    Filed: October 8, 2018
    Date of Patent: October 15, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Mattias Frenne, Johan Furuskog, George Jöngren, Robert M. Harrison
  • Network Node, Wireless Device, And Methods For Beam Management
    Publication number: 20190312628
    Abstract: Embodiments herein relate to a method performed by a wireless device (10) for managing beam-formed communication in a wireless communication network (1), wherein the wireless device (10) is configured to handle separate directional device beams at the wireless device (10). The wireless device (10) forms an active set for a first device beam out of the separate directional device beams of the wireless device by selecting one or more first network beams out of a plurality of separate directional network beams of the wireless communication network (1). The one or more first network beams are selected based on received signal strength or quality, and the active set is to be used for transmission or reception of data. The wireless device selects a first network beam in the active set as a preferred network beam for transmission or reception of data.
    Type: Application
    Filed: November 11, 2016
    Publication date: October 10, 2019
    Inventors: Andreas Bergström, Håkan Andersson, Johan Furuskog, Tomas Sundin, Niclas Wiberg, Qiang Zhang
  • System and method for beam-based physical random-access
    Patent number: 10433335
    Abstract: A method in a wireless device for performing random access to a network node. The method comprises receiving a set of downlink beam-specific reference signals, BRS, from the network node, and determining a preferred BRS BRS based on the received signal power for each BRS. The method also comprises selecting, based on the preferred BRS, a random-access resource to be used for transmitting a random-access attempt to the network node, as well as using the selected random-access resource when transmitting a random-access attempt to the network node, whereby the selection of random-access resource indicates to the network node which downlink beam is preferred by the wireless device to be used for downlink transmissions.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: October 1, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Mattias Frenne, Håkan Andersson, Johan Furuskog, Stefan Parkvall, Henrik Sahlin, Qiang Zhang
  • System and Method for Beam-Based Physical Random-Access
    Publication number: 20190254068
    Abstract: A method in a wireless device for performing random access to a network node. The method comprises receiving a set of downlink beam-specific reference signals, BRS, from the network node, and determining a preferred BRS based on the received signal power for each BRS. The method also comprises selecting, based on the preferred BRS, a random-access resource to be used for transmitting a random-access attempt to the network node, as well as using the selected random-access resource when transmitting a random-access attempt to the network node, whereby the selection of random-access resource indicates to the network node which downlink beam is preferred by the wireless device to be used for downlink transmissions.
    Type: Application
    Filed: April 26, 2019
    Publication date: August 15, 2019
    Inventors: Mattias FRENNE, Hâkan ANDERSSON, Johan FURUSKOG, Stefan PARKVALL, Henrik SAHLIN, Qiang ZHANG
  • Network architecture, methods, and devices for a wireless communications network
    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
  • UPLINK MULTI-TTI SCHEDULING IN TDD SYSTEM
    Publication number: 20190215805
    Abstract: Systems and methods are disclosed for transmission and reception of an uplink grant during a gap created in radio resources assigned by a previous multiple Transmit Time Interval (multi-TTI) uplink grant in a system operating according to a Time Division Duplexing (TDD) scheme. In one embodiment, a method of operation of a wireless device operating according to a TDD scheme in a cellular communications network includes: receiving a first uplink grant from a radio network node that assigns first radio resources for a first multiple transmit time interval uplink transmission, the first radio resources comprising a set of consecutive subframes; and interrupting an uplink transmission on the first radio resources during a gap in the first radio resources assigned for the first multiple transmit time interval uplink transmission, the gap comprising a time domain gap within the set of consecutive subframes.
    Type: Application
    Filed: March 12, 2019
    Publication date: July 11, 2019
    Inventors: Henrik Sahlin, Mattias Frenne, Johan Furuskog, Stefan Parkvall, Qiang Zhang
  • Sending and detecting synchronization signals and an associated information message
    Patent number: 10348541
    Abstract: Embodiments herein relate to methods and apparatuses. A method performed by a network node (210) for sending to a wireless device (250) a first synchronization signal and an associated information message, for synchronization of the wireless device (250) with the network node (210) is provided. The network node (210) sends the first synchronization signal in OFDM symbols within a subframe, at least once in a time and frequency position in every one of the N OFDM symbols. For each sending of the first synchronization signal, the network node (210) sends an associated information message at a pre-defined time and frequency position in an OFDM symbol. The pre-defined time and frequency position is relative to the time and frequency position of the first synchronization signal. Embodiments herein also relate to a wireless device and method therein.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: July 9, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Mattias Frenne, Johan Furuskog, Dirk Gerstenberger
  • Delaying Transmission Depending on Transmission Type and UE Processing Capabilities
    Publication number: 20190208408
    Abstract: Embodiments herein relate to a method performed by a radio network node (12) for handling transmission of data from a wireless device (10) in a wireless communication network (1). The radio network node (12) determines a delay value for a transmission of data from the wireless device (10) based on a transmission type of data from the wireless device (10) or a capability of the wireless device (10). The capability is related to a processing time for processing received data from the radio network node (12), or for processing data for transmission to the radio network node. The radio network node further transmits an indication, to the wireless device (10), which indication indicates the determined delay value.
    Type: Application
    Filed: January 8, 2019
    Publication date: July 4, 2019
    Inventors: Mattias Frenne, Håkan Andersson, Johan Furuskog, Niclas Wiberg, Qiang Zhang
  • Network node, a wireless device, and methods therein for beam selection
    Patent number: 10341005
    Abstract: A Network Node (NN) 208 and a method therein for beam selection. When an upcoming ability to serve a Wireless Device (WD) 210 using a current NN beam is predicted to be lost based on historic data, the NN selects an upcoming NN beam out of one or more candidate NN beams that are able to serve the WD when the NN has lost ability to serve the WD using the current NN beam. The NN configures a dedicated Beam Reference Signal (BRS) for the upcoming NN beam, which is to be detected in beam selection by the WD when the NN loses ability to serve the wireless device using the current NN beam. By means of the current NN beam, the NN transmits, to the WD, a configuration of the dedicated BRS. Further, by means of the upcoming NN beam, the NN transmits, to the WD, the dedicated BRS.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: July 2, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Johan Furuskog, Håkan Andersson, Mattias Frenne, Johan Kåredal, John Skördeman, Tomas Sundin, Niclas Wiberg, Qiang Zhang
  • Group-based resource element mapping for radio transmission of data
    Patent number: 10298364
    Abstract: For transmitting data over a radio interface using subframes with a plurality of resource elements organized in a time-frequency grid, at least two groups of resource elements are determined from the resource elements of one of the subframes. Each group covers multiple consecutive resource elements in the time domain and is distinct from the at least one other group in the frequency domain. Data symbols of a sequence are consecutively mapped to the resource elements of one of the groups. If a data symbol is mapped to each resource element of the group, the next data symbols of the sequence are consecutively mapped to the resource elements of a further one of the groups.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: May 21, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Karl Werner, Johan Furuskog
  • Delaying Transmission Depending on Transmission Type and UE Processing Capabilities
    Publication number: 20190150007
    Abstract: Embodiments herein relate to a method performed by a radio network node (12) for handling transmission of data from a wireless device (10) in a wireless communication network (1). The radio network node (12) determines a delay value for a transmission of data from the wireless device (10) based on a transmission type of data from the wireless device (10) or a capability of the wireless device (10). The capability is related to a processing time for processing received data from the radio network node (12), or for processing data for transmission to the radio network node. The radio network node further transmits an indication, to the wireless device (10), which indication indicates the determined delay value.
    Type: Application
    Filed: November 29, 2016
    Publication date: May 16, 2019
    Inventors: Mattias Frenne, Håkan Andersson, Johan Furuskog, Niclas Wiberg, Qiang Zhang