Patents by Inventor Erik Olsson

Erik Olsson 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).

  • Control of directive antennas for wireless links
    Patent number: 10320497
    Abstract: The present disclosure relates to a radio receiver, a radio transmitter, and methods for evaluating receive and transmit antenna patterns of directive payload antennas. The method for evaluating receive antenna patterns of a directive payload antenna comprises the step of steering a probing signal receive pattern of a steerable receive pattern antenna according to a pre-determined sequence of probing signal receive patterns, and receiving a probing signal via the steerable receive pattern antenna, as well as determining a probing signal quality value from the received probing signal as a function of the pre-determined sequence of probing signal receive patterns.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: June 11, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Bengt-Erik Olsson, Christina Larsson, Mats Rydström, Jonas Hansryd
  • ROTATABLE ANTENNA ARRANGEMENT FOR LOS-MIMO
    Publication number: 20190115957
    Abstract: An antenna arrangement for LOS-MIMO communication, comprising first and second directive antenna units, a mounting bracket, and a connecting element attached to at least one of the directive antenna units and arranged to separate the directive antenna units by a distance. The connecting element is rotatably arranged in relation to the mounting bracket, wherein a rotation of the connecting element about the rotation axis changes an effective distance d between the first and the second directive antenna units.
    Type: Application
    Filed: March 29, 2016
    Publication date: April 18, 2019
    Inventors: Mats RYDSTRÖM, Lei BAO, Thomas EMANUELSSON, Per LIGANDER, Bengt-Erik OLSSON
  • AN ADAPTIVE MICROWAVE COMMUNICATION LINK
    Publication number: 20190104481
    Abstract: A wireless communication link arrangement may include a first network device) and a second network device. The wireless communication link arrangement is arranged for transfer of fronthaul data between these network devices via a wireless communication fronthaul link. Each of said network devices is arranged to constitute a transmitting network device and/or a receiving network device, and at least one network device is arranged to determine the present load on the wireless communication link arrangement. When the present load is determined to exceed a first threshold, at least one network device) comprised in the wireless communication link arrangement, is arranged to determine whether data blocks that are intended to be transmitted by a transmitting network device contain information or not, and to instruct said transmitting network device to only transmit data blocks that have been determined to contain information.
    Type: Application
    Filed: March 24, 2016
    Publication date: April 4, 2019
    Inventor: Bengt-Erik OLSSON
  • ANTENNA ALIGNMENT USING UNMANNED AERIAL VEHICLE
    Publication number: 20190020422
    Abstract: A system for antenna alignment of a directional antenna used for wireless communication with respect to a target location. The system comprising the directional antenna and an unmanned aerial vehicle, UAV, arranged to be deployed in relation to the target location. The system is configured for transmission of an alignment signal between the UAV and the directional antenna and also for measuring a level of antenna alignment of the directional antenna with respect to the target location, based on the alignment signal transmission.
    Type: Application
    Filed: September 4, 2018
    Publication date: January 17, 2019
    Inventors: Ulf WENNERLÖF, Anders AHLSTRÖM, Stefan THÖRESSON, Jan SANDBERG, Bengt-Erik OLSSON
  • Antenna alignment using unmanned aerial vehicle
    Patent number: 10103824
    Abstract: A system for antenna alignment of a directional antenna used for wireless communication with respect to a target location. The system comprising the directional antenna and an unmanned aerial vehicle, UAV, arranged to be deployed in relation to the target location. The system is configured for transmission of an alignment signal between the UAV and the directional antenna and also for measuring a level of antenna alignment of the directional antenna with respect to the target location, based on the alignment signal transmission.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: October 16, 2018
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Ulf Wennerlöf, Anders Ahlström, Stefan Thöresson, Jan Sandberg, Bengt-Erik Olsson
  • METHOD AND TOOL FOR REFLECTOR ALIGNMENT
    Publication number: 20180259612
    Abstract: An alignment tool and a method are disclosed for alignment of a reflector arrangement. The reflector arrangement comprises a flat reflective surface which is configured to reflect an electromagnetic wave signal between a first antenna site and a second antenna site. The alignment tool comprises a camera circuit for capturing images of a field-of-view, an input circuit configured to receive a user input comprising the field-of-view coordinates of the first antenna site, a processing circuit configured to compute alignment information from the user input, and a display circuit configured to display the field-of-view and the alignment information.
    Type: Application
    Filed: October 13, 2015
    Publication date: September 13, 2018
    Inventor: Bengt-Erik OLSSON
  • System for evaluation of MIMO antenna deployment
    Patent number: 9941941
    Abstract: The present disclosure relates to a radio receiver, a radio transmitter, and methods for evaluating multiple-input multiple-output, MIMO, antenna deployment. The method for evaluating MIMO, antenna deployment comprises the steps of receiving a first composite signal via a first receive antenna. The first composite signal comprises a first tone transmitted from a first transmit antenna at a first variable frequency and a second tone transmitted from a second transmit antenna at a second variable frequency different from the first variable frequency, and also receiving a second composite signal via a second receive antenna. The second composite signal comprising the first tone transmitted from the first transmit antenna and the second tone transmitted from the second transmit antenna.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: April 10, 2018
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Bengt-Erik Olsson, Lei Bao
  • Network Architecture, Methods, and Devices for a Wireless Communications Network
    Publication number: 20170331670
    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 13, 2016
    Publication date: November 16, 2017
    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
  • Network Architecture, Methods, and Devices for a Wireless Communications Network
    Publication number: 20170331577
    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: May 13, 2016
    Publication date: November 16, 2017
    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, 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
  • Distortion suppression for wireless transmission
    Patent number: 9712194
    Abstract: A receiver arranged to receive and to suppress a distortion in a receive signal, the receive signal comprising an information signal, the information signal occupying a first frequency band, the receive signal further comprising a pilot signal, the pilot signal occupying a second frequency band different from the first frequency band, the receiver comprising a pilot removal device arranged to receive a processed receive signal, and to extract and process the processed pilot signal from the processed receive signal as a processed extracted pilot signal, and to combine the processed extracted pilot signal with the processed receive signal to generate a distortion suppressed receive signal.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: July 18, 2017
    Assignee: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Bengt-Erik Olsson, Christina Larsson
  • Communication system for a nonlinear fiber channel
    Patent number: 9686013
    Abstract: A system for communication over a fiber link is disclosed. The system comprises a transmitter to transmit an information signal that comprises an information spectrum, and to transmit two spectrally inverted copies of the information spectrum over the predefined length of the fiber link, the two spectrally inverted copies corresponding to a first spectrum with a first center wavelength and to a second spectrum with a second center wavelength, the second spectrum being inverted relative to the first spectrum and the second center wavelength being different from the first center wavelength, and a receiver to receive the first spectrum and the second spectrum, and to estimate a phase rotation of the second spectrum relative to the first spectrum by comparing a first phase measured from the first spectrum with a second phase measured from the second spectrum.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: June 20, 2017
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Bengt-Erik Olsson, Arne Alping
  • ANTENNA ALIGNMENT USING UNMANNED AERIAL VEHICLE
    Publication number: 20170155456
    Abstract: A system for antenna alignment of a directional antenna used for wireless communication with respect to a target location. The system comprising the directional antenna and an unmanned aerial vehicle, UAV, arranged to be deployed in relation to the target location. The system is configured for transmission of an alignment signal between the UAV and the directional antenna and also for measuring a level of antenna alignment of the directional antenna with respect to the target location, based on the alignment signal transmission.
    Type: Application
    Filed: October 14, 2015
    Publication date: June 1, 2017
    Inventors: Ulf Wennerlöf, Anders Ahlström, Stefan Thöresson, Jan Sandberg, Bengt-Erik Olsson
  • ROBUST WIRELESS RADIO TRANSMISSION
    Publication number: 20170141890
    Abstract: There is provided mechanisms for robust wireless radio transmission. A method is performed by a network node. The method comprises acquiring data to be transmitted on a wireless radio link. The method comprises separating the data into a radio access technology (RAT) payload part and a management data part. The method comprises acquiring channel condition values for the wireless radio link. The method comprises dynamically allocating resources between the RAT payload part and the management data part according to the channel condition values. The method comprises transmitting the data over the wireless radio link using said allocated resources.
    Type: Application
    Filed: September 23, 2015
    Publication date: May 18, 2017
    Inventors: Bengt-Erik Olsson, Robert Lindgren
  • Electro-optical implementation of an optical spectrum inverter
    Patent number: 9544064
    Abstract: The invention relates to an optical spectrum inverter, configured for counteracting phase distortion effects in an optical channel over a predefined frequency range, to an inverter node, configured for duplex operation in at least two wavelength channels, and to a method for counteracting phase distortion effects in an optical channel.
    Type: Grant
    Filed: July 19, 2012
    Date of Patent: January 10, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Bengt-Erik Olsson, Christina Larsson
  • Analog phase noise compensation for coherent optical communication
    Patent number: 9537579
    Abstract: The invention relates to a noise compensation system, configured for compensating phase noise in coherent optical communications, and to a method for compensating phase noise.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: January 3, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Bengt-Erik Olsson, Christina Larsson
  • Interference Mitigation in Multiple Input Multiple Output Systems
    Publication number: 20160380707
    Abstract: There is provided mechanisms for adjusting an antenna arrangement for mitigating interference in a line of sight multiple input multiple output system. The antenna arrangement comprises at least two antennas. A method comprises adjusting a distance between two antennas of the antenna arrangement by an adjustment distance to compensate for interference caused by at least one reflection occurring along a line of sight link from the antenna arrangement to antennas intended to communicate with the antenna arrangement.
    Type: Application
    Filed: June 25, 2015
    Publication date: December 29, 2016
    Inventors: Bengt-Erik Olsson, Lei Bao
  • SYSTEM FOR EVALUATION OF MIMO ANTENNA DEPLOYMENT
    Publication number: 20160344457
    Abstract: The present disclosure relates to a radio receiver, a radio transmitter, and methods for evaluating multiple-input multiple-output, MIMO, antenna deployment. The method for evaluating MIMO, antenna deployment comprises the steps of receiving a first composite signal via a first receive antenna. The first composite signal comprises a first tone transmitted from a first transmit antenna at a first variable frequency and a second tone transmitted from a second transmit antenna at a second variable frequency different from the first variable frequency, and also receiving a second composite signal via a second receive antenna. The second composite signal comprising the first tone transmitted from the first transmit antenna and the second tone transmitted from the second transmit antenna.
    Type: Application
    Filed: January 27, 2014
    Publication date: November 24, 2016
    Inventors: Bengt-Erik Olsson, Lei Bao
  • IMPROVED CONTROL OF DIRECTIVE ANTENNAS FOR WIRELESS LINKS
    Publication number: 20160323047
    Abstract: The present disclosure relates to a radio receiver, a radio transmitter, and methods for evaluating receive and transmit antenna patterns of directive payload antennas. The method for evaluating receive antenna patterns of a directive payload antenna comprises the step of steering a probing signal receive pattern of a steerable receive pattern antenna according to a pre-determined sequence of probing signal receive patterns, and receiving a probing signal via the steerable receive pattern antenna, as well as determining a probing signal quality value from the received probing signal as a function of the pre-determined sequence of probing signal receive patterns.
    Type: Application
    Filed: January 16, 2014
    Publication date: November 3, 2016
    Applicant: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Bengt-Erik Olsson, Christina Larsson, Mats Rydström, Jonas Hansryd
  • Tunable delay line arrangement
    Patent number: 9478844
    Abstract: A tunable chirped delay line arrangement (0) configured to operatively propagate a signal and includes a at least one chirped delay line (1) arranged along a reference direction (z) on a dielectric layer (2) arranged on a ground plane (3). The chirped delay line (1) is configured with a smoothly varying width along the reference direction (z), and the arrangement (0) further comprising at least one electronically tunable impedance (5) interconnecting the at least one delay line (1) and the ground plane (3) at at least one location along the reference direction (z) such that the at least one delay line (1) is loaded by the tunable impedance (5).
    Type: Grant
    Filed: April 17, 2012
    Date of Patent: October 25, 2016
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Spartak Gevorgyan, Bengt-Erik Olsson
  • Optical homodyne coherent receiver and method for receiving a multichannel optical signal
    Patent number: 9356705
    Abstract: A receiver arrangement for receiving an optical signal comprising a number of optical channels equally distributed around an optical carrier frequency. The arrangement is configured to: i) received and detect the multichannel optical signal so as to provide at least one electrical quadrature signal comprising at least one folded channel, wherein each folded channel correspond to a set of two optical channels collapsed onto each other; ii) up-convert said at least one electrical quadrature signal so as to provide at least one up-converted quadrature signal comprising at least one pair of two separated unfolded channels, wherein each pair correspond to the two optical channels of a unique folded channel; and iii) demodulating said at least one up-converted quadrature signal so as to provide one baseband quadrature signal for each un folded channel such that each baseband quadrature signal corresponds to one unique optical channel.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: May 31, 2016
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventor: Bengt-Erik Olsson