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).

  • Angle of arrival estimation in a radio communications network
    Patent number: 11444707
    Abstract: There is provided mechanisms for estimating angle of arrival of a radio signal in a radio communications network. A method is performed by a radio transceiver device. The radio transceiver device comprises an antenna array that, by means of analog beamforming, is configured to shift between at least two phase center locations. The method comprises obtaining measurements of the radio signal as received by the antenna array using two mutually different phase center locations. The method comprises estimating the angle of arrival of the radio signal using the measurements as obtained using the two mutually different phase center locations.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: September 13, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Sven Petersson, Fredrik Athley, Andreas Nilsson
  • Antenna arrangements for a radio transceiver device
    Patent number: 11437737
    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: Grant
    Filed: August 28, 2020
    Date of Patent: September 6, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Sven Petersson, Andreas Nilsson
  • Resource efficient beam management
    Patent number: 11432294
    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: Grant
    Filed: October 15, 2019
    Date of Patent: August 30, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Sven Petersson, Fredrik Athley, Andreas Nilsson
  • Transmission of reference signals from a terminal device
    Patent number: 11411695
    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: Grant
    Filed: April 29, 2019
    Date of Patent: August 9, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Sven Petersson, Fredrik Athley, Andreas Nilsson, Roy Timo, Xinlin Zhang
  • Determination of electrical phase relation in a communications network
    Patent number: 11411310
    Abstract: Mechanisms for determining an electrical phase relation between antenna elements in an antenna array. A method is performed by a radio transceiver device. The method comprises obtaining measurements of the radio signal as received in two receive beams covering a given angular sector. The two receive beams have different complex beam patterns. The method further comprises estimating the angle of arrival of the radio signal for at least one polarization port of each of the two receive beams using the measurements in the two receive beams. The method also comprises determining, from the angle of arrival estimated for each polarization port, an electrical phase relation between antenna elements in the antenna array that corresponds to the estimated angle of arrival.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: August 9, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Fredrik Athley, Andreas Nilsson, Sven Petersson
  • INTERFERENCE HANDLING AT RADIO ACCESS NETWORK NODES
    Publication number: 20220248419
    Abstract: There is provided mechanisms for interference handling. A method is performed by a radio access network node. The method comprises obtaining an indication of interference in a time/frequency interval. The method comprises querying a neighbouring radio access network node about scheduling in the time/frequency interval of uplink wireless transmission from any terminal device served by the neighbouring radio access network node. The method comprises receiving a response from the neighbouring radio access network node. The response comprises information identifying uplink reference signal resources/ports, and their scheduling, as to be used by the terminal device scheduled in the time/frequency interval.
    Type: Application
    Filed: July 9, 2019
    Publication date: August 4, 2022
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Andreas NILSSON, Sven PETERSSON, Fredrik ATHLEY, Roy TIMO, Xinlin ZHANG
  • Network architecture, methods, and devices for a wireless communications network
    Patent number: 11381445
    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 16, 2019
    Date of Patent: July 5, 2022
    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, 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
  • Signal distribution network
    Patent number: 11355864
    Abstract: A signal distribution network associated with first and second antenna ports and first and second pluralities of antenna elements is configured to feed a first signal to/from the first and second pluralities of antenna elements via distribution nodes using a first ordered weighting set and feed a second signal to/from the first and second pluralities of antenna elements via distribution nodes 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. The second ordered weighting set comprises a second weighting element for each distribution node, each non-zero valued second weighting element being configured to provide a second signal contribution factor for first and second polarizations when combined with the antenna element orientation.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: June 7, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Sven Petersson, Andreas Nilsson
  • TRANSMISSION OF REFERENCE SIGNALS FROM A TERMINAL DEVICE
    Publication number: 20220166464
    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: Application
    Filed: October 1, 2021
    Publication date: May 26, 2022
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Sven PETERSSON, Fredrik ATHLEY, Andreas NILSSON, Roy TIMO, Xinlin ZHANG
  • BEAM SELECTION FOR TERMINAL DEVICES IN MU-MIMO OPERATION
    Publication number: 20220149921
    Abstract: There is provided mechanisms for beam selection. A method is performed by a network node. The method comprises performing a beam management procedure for at least two terminal devices. During the beam management procedure reference signals are transmitted in a beam sweep as performed in a set of beams. During the beam management procedure, each of the at least two terminal devices reports at least two beams in the set of beams for which the reference signals have been received with highest power. The method comprises selecting which beams to serve the at least two terminal devices based jointly on the reports and a mutual interference criterion for the at least two terminal devices.
    Type: Application
    Filed: February 28, 2019
    Publication date: May 12, 2022
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Andreas NILSSON, Sven PETERSSON, Niklas JALDÉN, Martin JOHANSSON
  • Antenna arrangement for dual-polarization beamforming
    Patent number: 11329399
    Abstract: There is provided an antenna arrangement. The antenna arrangement comprises a baseband chain. The antenna arrangement comprises an antenna array. The antenna array is coupled to the baseband chain and divided into a first sub-array and a second sub-array. The first sub-array comprises antenna elements of only a first polarization and the second sub-array comprises antenna elements of only a second polarization. The first sub-array and the second sub-array have their antenna elements at identical locations relative each other, except for the antenna elements of the first sub-array and the antenna elements of the second sub-array being translated, but not rotated, relative each other.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: May 10, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Sven Petersson, Andreas Nilsson
  • Hybrid-SRS combination signaling
    Patent number: 11310010
    Abstract: Some embodiments include a method in a wireless device capable of uplink transmission in a wireless communication network. The wireless device comprises a plurality of antenna ports. The method comprises determining one or more subsets of the plurality of antenna ports. Each subset of antenna ports comprises antenna ports that can be coherently combined to form a precoding of a transmission layer for transmitting from the subset of antenna ports. The method further comprises communicating an indication of the one or more subsets to a network node, and receiving, from the network node, an instruction of a precoding to use for an uplink transmission. The instruction is based on the indicated one or more subsets. The method further comprises precoding an uplink transmission based on the received instruction, and transmitting the transmission to the network node.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: April 19, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Sebastian Faxér, Fredrik Athley, Mattias Frenne, Virgile Garcia, Andreas Nilsson, Sven Petersson
  • DUAL-POLARIZATION BEAMFORMING
    Publication number: 20220103241
    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: Application
    Filed: August 2, 2021
    Publication date: March 31, 2022
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Sven PETERSSON, Fredrik ATHLEY, Andreas NILSSON
  • First communication device and methods thereby for initiating transmission based on an obtained set of correspondences
    Patent number: 11283499
    Abstract: A method performed by a first communication device operating in a wireless communications network. The first communication device obtains a set of correspondences associating: i) each set (?i) of a plurality of sets of antenna weights (?1 . . . ?i) having been sent by a third communication device in response to having received a respective set (RSsi) of a plurality of sets of radio signals (RSs1 . . . RSsi) from a set of antenna ports in a second communication device, with ii) a respective direction of transmission (di) between the second communication device and the third communication device. The respective direction is relative to an orientation (?i) of the second communication device. The respective direction of transmission (di) is a selected direction of transmission (di,?i). The first communication device then initiates transmission of a new radio signal, based on the obtained set of correspondences.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: March 22, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Magnus Thurfjell, Sven-Olof Jonsson, Peter Ökvist, Sven Petersson, Arne Simonsson
  • WIRELESS COMMUNICATION NODE ADAPTED TO RADIATE ANTENNA BEAMS OF DIFFERENT TYPES
    Publication number: 20220077905
    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: Application
    Filed: July 16, 2021
    Publication date: March 10, 2022
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Fredrik ATHLEY, Sven Petersson
  • Beam management of a radio transceiver device
    Patent number: 11271696
    Abstract: There is provided mechanisms for performing beam management. A method is performed by a radio transceiver device. The method comprises transmitting a reference signal in a transmission beam as part of the beam 5 management. The reference signal in the transmission beam occupies time/frequency resources that extend over a frequency interval. The transmission beam has a frequency-dependent polarization over the frequency interval.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: March 8, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Andreas Nilsson, Fredrik Athley, Sven Petersson
  • Beam training of a radio transceiver device
    Patent number: 11265067
    Abstract: A method is performed for beam training of a radio transceiver device comprising at least two antenna arrays. During the beam training, a first set of occurrences of a reference signal is received using all the antenna arrays and such that one respective occurrence of the reference signal is received in one single wide beam at each of all the antenna arrays. During the beam training, a second set of occurrences of the reference signal using less than all antenna arrays and such that one respective occurrence of the reference signal is received in each respective narrow at each of the less than all antenna arrays. Which of the less than all antenna arrays to receive the second set of occurrences of the reference signal is determined based on evaluation of reception of the first set of occurrences of the reference signal at each of all the antenna arrays.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: March 1, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Sven Petersson, Fredrik Athley, Andreas Nilsson
  • CONFIGURATION OF BEAMFORMING SETTINGS FOR A WIRELESS RADIO TRANSCEIVER DEVICE
    Publication number: 20220060236
    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: Application
    Filed: November 2, 2021
    Publication date: February 24, 2022
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Andreas NILSSON, Fredrik ATHLEY, Sven PETERSSON
  • 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