Patents by Inventor Sven Petersson

Sven Petersson 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).

  • Antenna arrangement and method for beamforming
    Patent number: 11211719
    Abstract: An antenna arrangement (1) comprising a dual polarized antenna array (10) and a reconfigurable feed network (17) connected thereto is provided.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: December 28, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON
    Inventors: Sven Petersson, Andreas Nilsson
  • Configuration of beamforming settings for a wireless radio transceiver device
    Patent number: 11190256
    Abstract: There is provided mechanisms for configuring beamforming settings. A method is performed by a wireless radio transceiver device configured to communicate in directional beams. The method comprises obtaining a performance indication requiring configuration of the beamforming settings of the wireless radio transceiver device. The method comprises selecting a similarity measure objective based on what kind of performance indication was obtained. The method comprises determining, based on the similarity measure objective and results from a similarity measure procedure applied to pairs of received signals, an order in which to evaluate the directional beams when configuring the beamforming settings.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: November 30, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Andreas Nilsson, Fredrik Athley, Sven Petersson
  • TRANSMISSION OF REFERENCE SIGNALS FROM A TERMINAL DEVICE
    Publication number: 20210359805
    Abstract: There is provided mechanisms for transmission of reference signals. A method is performed by a terminal device. The terminal device comprises at least two physical antenna ports. The method comprises obtaining channel information. The method comprises determining, for at least one given precoder in a codebook, an uplink reference signal to physical antenna port mapping based on the channel information. The method comprises transmitting uplink reference signals in the physical antenna ports according to the determined mapping.
    Type: Application
    Filed: April 29, 2019
    Publication date: November 18, 2021
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Sven PETERSSON, Fredrik ATHLEY, Andreas NILSSON, Roy TIMO, Xinlin ZHANG
  • BEAMFORMED TRANSMISSION TOWARDS GROUPS OF TERMINAL DEVICES
    Publication number: 20210359736
    Abstract: There is provided mechanisms for beamformed transmission towards groups of terminal devices. Each terminal device is, according to a bandwidth part (BWP) configuration, configured with a BWP set. One BWP in the BWP set is an active BWP for the terminal device. The method is performed by a network node. The method comprises configuring a new terminal device entering one of the groups with an active BWP based on frequency overlap avoidance with the active BWPs of the terminal devices already part of the group entered. The method comprises serving all terminal devices by performing beamformed transmission towards the terminal devices in accordance with the active BWPs.
    Type: Application
    Filed: May 16, 2019
    Publication date: November 18, 2021
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Sven PETERSSON, Andreas NILSSON, Fredrik ATHLEY
  • Transmission of reference signals from a terminal device
    Patent number: 11139870
    Abstract: There is provided mechanisms for transmission of reference signals. A method is performed by a terminal device. The terminal device is configured for codebook based precoding. The terminal device comprises at least two physical antenna ports. The method comprises transmitting, in all physical antenna port, as many uplink reference signals as there are physical antenna ports in total.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: October 5, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Sven Petersson, Fredrik Athley, Andreas Nilsson, Roy Timo, Xinlin Zhang
  • Transmission of reference signals from a terminal device
    Patent number: 11139864
    Abstract: There is provided mechanisms for transmission of reference signals. A method is performed by a terminal device. The terminal device comprises at least two physical antenna ports. The method comprises creating a virtual antenna port for, and applied over, at least two of the physical antenna ports. The method comprises transmitting, in the virtual antenna port, as many uplink reference signals as there are physical antenna ports.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: October 5, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Sven Petersson, Fredrik Athley, Andreas Nilsson, Roy Timo, Xinlin Zhang
  • Efficient SRS resource indication methods
    Patent number: 11121835
    Abstract: A method of identifying reference signal resources to be used in a transmission by a wireless device is disclosed. The method comprises a wireless device receiving signaling configuring the wireless device with a plurality of reference signal resource groups, each group comprising a plurality of reference signal resources. The wireless device subsequently receives an indication, in a control channel, of a selection of reference signal resources to be used. Each of the plurality of reference signal resources to be used is selected from a different one of the plurality of reference signal resource groups such that reference signal resources belonging to the same reference signal resource group are not selected for simultaneous use. A reference signal is then transmitted to a network node in the network using the indicated selection of reference signal resources.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: September 14, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Robert Mark Harrison, Sebastian Faxér, Andreas Nilsson, Sven Petersson
  • TRANSMISSION OF A TWO-PORT REFERENCE SIGNAL
    Publication number: 20210258050
    Abstract: There is provided mechanisms for transmitting a two-port reference signal from an analog antenna array of an antenna arrangement. The analog antenna array comprises antenna elements of two polarizations. All antenna elements of each polarization are connected to a respective physical antenna port. A method comprises generating two virtual antenna ports, one for each of the two ports of the reference signal. The method comprises feeding the reference signal from the two virtual antenna ports to the two physical antenna ports via a virtualization network. The method comprises transmitting, via the antenna elements, the reference signal from the two physical antenna ports over a composite beamwidth in different spatial coverage per polarization for each of the two physical antenna ports whereby the transmitted reference signal, over the composite beamwidth, varies between having rank 1 and rank 2.
    Type: Application
    Filed: June 12, 2018
    Publication date: August 19, 2021
    Inventors: Andreas Nilsson, Sven Petersson, Fredrik Athley, Niklas Wernersson
  • Transmission of a two-port reference signal
    Patent number: 11095347
    Abstract: There is provided mechanisms for transmitting a two-port reference signal from an analog antenna array of an antenna arrangement. The analog antenna array comprises antenna elements of two polarizations. All antenna elements of each polarization are connected to a respective physical antenna port. A method comprises generating two virtual antenna ports, one for each of the two ports of the reference signal. The method comprises feeding the reference signal from the two virtual antenna ports to the two physical antenna ports via a virtualization network. The method comprises transmitting, via the antenna elements, the reference signal from the two physical antenna ports over a composite beamwidth in different spatial coverage per polarization for each of the two physical antenna ports whereby the transmitted reference signal, over the composite beamwidth, varies between having rank 1 and rank 2.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: August 17, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Andreas Nilsson, Sven Petersson, Fredrik Athley, Niklas Wernersson
  • Dual-polarization beamforming
    Patent number: 11082120
    Abstract: There is presented a wireless device for dual-polarization beamforming. The wireless device comprises an antenna array. The antenna array comprises antenna elements of mutually orthogonal polarizations and a baseband chain. The antenna elements of both polarizations are operatively connected to the baseband chain. There is also presented a method for dual-polarization beamforming as performed by such a wireless device.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: August 3, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Sven Petersson, Fredrik Athley, Andreas Nilsson
  • Wireless communication node adapted to radiate antenna beams of different types
    Patent number: 11070268
    Abstract: A wireless communication node comprising an antenna arrangement that is adapted to radiate at least one radiation beam of a first type and at least one radiation beam of a second type. Said at least one radiation beam of the first type has a first type beamwidth (BT1) and said at least one radiation beam of the second type has a second type beamwidth (BT2) that exceeds the first type beamwidth (BT1). Said at least one radiation beam of the first type is arranged for communication with at least a first other node, and where said at least one radiation beam of the second type is arranged for detection of changes in propagation paths for said other node and/or appearances of further other nodes.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: July 20, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Fredrik Athley, Sven Petersson
  • SIGNAL DISTRIBUTION NETWORK
    Publication number: 20210210871
    Abstract: A signal distribution network associated with first and second antenna ports and first and second pluralities of antenna elements is disclosed, which is configured to cause feeding of a first signal to/from the first and second pluralities of antenna elements via distribution nodes and using a first ordered weighting set, and feeding of a second signal to/from the first and second pluralities of antenna elements via distribution nodes and using a second ordered weighting set. The first ordered weighting set comprises a first weighting element for each distribution node, each non-zero valued first weighting element being configured to provide a first signal contribution factor for first and second polarizations when combined with the antenna element orientation.
    Type: Application
    Filed: June 18, 2018
    Publication date: July 8, 2021
    Inventors: Sven PETERSSON, Andreas NILSSON
  • Beamforming using an antenna array
    Patent number: 11056785
    Abstract: There is provided mechanisms for transmitting a signal using a beamforming antenna array. A method being is by a network node. The method comprises obtaining an indication for transmission of the signal requiring use of a partial antenna array of the antenna array, the partial antenna array requiring less than all of the physical elements of the antenna array for transmission. The method comprises forming virtual antenna elements for the partial antenna array, thereby reducing the full antenna aperture of the antenna array. The method comprises expanding weight factors applied to the virtual antenna elements by connecting each of the virtual antenna elements to at least part of all physical antenna elements of the antenna array such that the virtual antenna elements at least partly utilize the full antenna aperture. The method comprises initiating transmission of the signal using the array of the virtual antenna elements.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: July 6, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Sven Petersson, Fredrik Athley
  • Beam forming using an antenna arrangement
    Patent number: 11024962
    Abstract: There is provided mechanisms for beam forming using an antenna array comprising dual polarized elements. A method comprises generating one or two beam ports, wherein the one or two beam ports are defined by combining at least two non-overlapping subarrays. Each subarray has two subarray ports, the two subarray ports having identical power patterns and mutually orthogonal polarization. The at least two non-overlapping subarrays are combined via expansion weights. The expansion weights map the one or two beam ports to subarray ports such that the one or two beam ports have the same power pattern as the subarrays. At least some of the expansion weights have identical non-zero magnitude and are related in phase to form a transmission lobe. The method comprises transmitting signals using said one or two beam ports.
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: June 1, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Fredrik Athley, Sven Petersson
  • Transmission of reference signals from a terminal device
    Patent number: 11012129
    Abstract: There is provided mechanisms for transmission of reference signals. A method is performed by a terminal device. The terminal device comprises at least two physical antenna ports. Each physical antenna port is fed by its own power amplifier. The method comprises transmitting, in only the physical antenna port is fed by the power amplifier configured for highest total output power of all the power amplifiers, as many uplink reference signals as there are physical antenna ports in total.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: May 18, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Sven Petersson, Fredrik Athley, Andreas Nilsson, Roy Timo, Xinlin Zhang
  • TRANSMISSION OF REFERENCE SIGNALS FROM A TERMINAL DEVICE
    Publication number: 20210135719
    Abstract: There is provided mechanisms for transmission of reference signals. A method is performed by a terminal device. The terminal device is configured for codebook based precoding. The terminal device comprises at least two physical antenna ports. The method comprises transmitting, in all physical antenna port, as many uplink reference signals as there are physical antenna ports in total.
    Type: Application
    Filed: April 29, 2019
    Publication date: May 6, 2021
    Inventor: Sven PETERSSON
  • Network Architecture, Methods, and Devices for a Wireless Communications Network
    Publication number: 20210126726
    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: December 31, 2020
    Publication date: April 29, 2021
    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, Niklas Johansson, Martin 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
  • ANTENNA ARRANGEMENTS FOR A RADIO TRANSCEIVER DEVICE
    Publication number: 20210119347
    Abstract: There is provided an antenna arrangement for a radio transceiver device. The antenna arrangement comprises at least two antenna arrays, wherein at least one of the at least two antenna arrays has antenna elements of two polarizations. The antenna elements of one polarization at each of the at least two antenna arrays define a respective set of antenna elements. The antenna arrangement comprises at least two baseband chains. The antenna arrangement comprises a switching network configured to selectively operatively connect each of the at least two baseband chains with its own set of antenna elements such that no two baseband chains are operatively connected to one and the same set of antenna elements. Each of the at least one antenna array that has antenna elements of two polarizations is operatively connected to the switching network via a respective hybrid connector configured to provide a signal from one of the baseband chains to antenna elements of both polarizations.
    Type: Application
    Filed: August 28, 2020
    Publication date: April 22, 2021
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Sven PETERSSON, Andreas NILSSON
  • RESOURCE EFFICIENT BEAM MANAGEMENT
    Publication number: 20210112558
    Abstract: A base station transmits to a first UE beam management configuration information that identifies (directly or indirectly) a resource and indicates to the UE that the identified resource will be used by the base station to transmit a reference signal for use by the first UE in performing a beam management procedure, and then the base station refrains from using the identified resource to transmit the reference signal, and, instead, uses the identified resource to transmit data (e.g., user data or other information) to a second UE.
    Type: Application
    Filed: October 15, 2019
    Publication date: April 15, 2021
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Sven PETERSSON, Fredrik Athley, Andreas Nilsson
  • EFFICIENT SRS RESOURCE INDICATION METHODS
    Publication number: 20210091907
    Abstract: A method of identifying reference signal resources to be used in a transmission by a wireless device is disclosed. The method comprises a wireless device receiving signaling configuring the wireless device with a plurality of reference signal resource groups, each group comprising a plurality of reference signal resources. The wireless device subsequently receives an indication, in a control channel, of a selection of reference signal resources to be used. Each of the plurality of reference signal resources to be used is selected from a different one of the plurality of reference signal resource groups such that reference signal resources belonging to the same reference signal resource group are not selected for simultaneous use. A reference signal is then transmitted to a network node in the network using the indicated selection of reference signal resources.
    Type: Application
    Filed: December 8, 2020
    Publication date: March 25, 2021
    Inventors: Robert Mark Harrison, Sebastian Faxér, Andreas Nilsson, Sven Petersson