Patents by Inventor Magnus Lundevall

Magnus Lundevall 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).

  • Publication number: 20250031056
    Abstract: There is disclosed a method of operating a ray tracing system, the method comprising launching rays from one or more transmission objects for determining rays hitting one or more reception objects, wherein launching comprises launching a successor ray based on a predecessor ray hitting a proximity object, wherein the proximity object encloses a reception object. The disclosure also pertains to related devices and methods.
    Type: Application
    Filed: December 16, 2021
    Publication date: January 23, 2025
    Inventors: Sinh NGUYEN, Henrik Asplund, Magnus Lundevall, Martin Johansson, Germán Ceballos
  • Patent number: 12101149
    Abstract: Embodiments described herein relate to methods and apparatuses for providing communication between a base station and at least one wireless device using a first beam. A method in a base station comprises receiving an indication of two or more beams, wherein the two or more beams meet a quality criterion associated with the at least one wireless device; obtaining a combined beam vector, w, based on a weighted sum of two or more beam vectors, bk, associated with the two or more beams; and communicating with the at least one wireless device using the first beam, wherein the first beam is generated using the combined beam vector.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: September 24, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Bo Göransson, Carl Lutnaes, Magnus Lundevall, Erik Larsson
  • Patent number: 11671838
    Abstract: There is provided a method in a first network node (e.g. CBSD) for negotiating AAS antenna pattern and for radio planning. The method comprises: determining (310) one or more cell shaping parameters; sending (320) the determined cell shaping parameters to a second network node (e.g. SAS or CxM); receiving (330) an allocation of resources based on the determined cell shaping parameters. Another method is disclosed as well and may comprise: receiving (160) an envelope of radio frequency power for maximizing a coverage area, from a second network node (e.g. SAS); determining (170) a beam pattern based on the received envelope; sending (180) the determined beam pattern to the second node.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: June 6, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Virgil Cimpu, Junying Liu, Mats Buchmayer, Fredric Kronestedt, Magnus Lundevall, Chris Williams, Gary Boudreau, Kumar Balachandran
  • Publication number: 20230029484
    Abstract: Embodiments described herein relate to methods and apparatuses for providing communication between a base station and at least one wireless device using a first beam. A method in a base station comprises receiving an indication of two or more beams, wherein the two or more beams meet a quality criterion associated with the at least one wireless device; obtaining a combined beam vector, w, based on a weighted sum of two or more beam vectors, bk, associated with the two or more beams; and communicating with the at least one wireless device using the first beam, wherein the first beam is generated using the combined beam vector.
    Type: Application
    Filed: September 25, 2020
    Publication date: February 2, 2023
    Inventors: Bo Göransson, Carl Lutnaes, Magnus Lundevall, Erik Larsson
  • Publication number: 20220338017
    Abstract: There is provided a method in a first network node (e.g. CBSD) for negotiating AAS antenna pattern and for radio planning. The method comprises: determining (310) one or more cell shaping parameters; sending (320) the determined cell shaping parameters to a second network node (e.g. SAS or CxM); receiving (330) an allocation of resources based on the determined cell shaping parameters. Another method is disclosed as well and may comprise: receiving (160) an envelope of radio frequency power for maximizing a coverage area, from a second network node (e.g. SAS); determining (170) a beam pattern based on the received envelope; sending (180) the determined beam pattern to the second node.
    Type: Application
    Filed: September 25, 2020
    Publication date: October 20, 2022
    Inventors: Virgil Cimpu, Junying Liu, Mats Buchmayer, Fredric Kronestedt, Magnus Lundevall, Chris Williams, Gary Boudreau, Kumar Balachandran
  • Patent number: 11012577
    Abstract: The present disclosure relates a method performed in a first Radio network node, serving a first service area, of notifying a Core Network node, CN, of a change of service area for a User Equipment, UE. The method comprises detecting that the UE has changed location between the first service area and a second service area served by at least a second Radio network node, wherein the first and second service areas are being associated with a respective service charge, and providing a notification to the Core Network Node informing about the change of service area for the UE, the indication enabling a CN function to change the service charge for the UE.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: May 18, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Jari Vikberg, Fredric Kronestedt, Magnus Lundevall
  • Patent number: 10917900
    Abstract: There is provided mechanisms for determining frequency location of a primary cell (PCell) for a wireless device in a carrier aggregation supported communications network having access to a group of low frequency bands and a group of high frequency bands. A method is performed by a network node. The method comprises acquiring an uplink load level for the group of low frequency bands. The method comprises acquiring a pathloss level between a wireless device served by the communications network and the network node. The method comprises selecting, from the acquired uplink load level and pathloss level, which one of the group of low frequency bands and the group of high frequency bands to place the frequency location of the PCell for the wireless device.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: February 9, 2021
    Assignee: Telefonaktiebolaget LM Ericsson(publ)
    Inventors: Fredric Kronestedt, Sven Ekemark, Magnus Lundevall, Jacob Österling
  • Patent number: 10742301
    Abstract: A network node and a method performed by the network node for scheduling transmissions between the network node and one or more wireless devices in the same physical layer resources are provided. The method comprises selecting a beam for a transmission between the network node and a first one of the wireless devices; and determining if a portion of physical layer resources remains available after allocating portions of physical layer resources to a first set of one or more wireless devices within transmission range of the selected beam. The method further comprises if at least a portion of physical layer resources remains available, adjusting the selected beam such that a second set of one or more additional wireless devices not within transmission range of the initially selected beam are within transmission range of the adjusted beam.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: August 11, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Carola Faronius, Bo Göransson, Fredrik Huss, Magnus Lundevall, Torbjörn Wigren
  • Patent number: 10560978
    Abstract: There is provided mechanisms for assigning control plane connectivity for a wireless device in a dual connectivity supported communications network. The communications network comprises a first network node supporting a group of low frequency bands and a second network node supporting a group of high frequency bands. A method is performed by a control node. The method comprises acquiring an uplink load level for the group of low frequency bands. The method comprises acquiring a first pathloss level between the wireless device and the first network node and a second pathloss level between the wireless device and the second network node. The method comprises selecting, from the acquired uplink load level, the first pathloss level, and the second pathloss level, which one of the first network node and the second network node to provide control plane connectivity for the wireless device.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: February 11, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Fredric Kronestedt, Jacob Österling, Magnus Lundevall
  • Patent number: 10448304
    Abstract: A low power network node (LPN) and a method performed thereby for providing a primary serving cell to a wireless device associated with the low power network node. The wireless communication network also comprises a neighboring network node, wherein the low power network node and the neighboring network node are configured with a first set of frequency bands B? and the low power network node is configured with a second set of frequency bands B?. Since the neighboring network node does not use the second set of frequency bands B?, the neighboring network node may not cause interference on carriers of the second set of frequency bands B?.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: October 15, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Fredric Kronestedt, Magnus Lundevall, Jari Vikberg
  • Patent number: 10356637
    Abstract: Method and apparatus for enabling accurate link quality estimation of a wireless link between a sending node and a receiving node. When the sending node receives link state reports from the receiving node, it estimates the current state of the wireless link. The sending node also determines a measurement adjusting parameter if the link state reports are deemed inaccurate in relation to the estimated link state, based on a deviation between the received link state reports and the estimated actual link state. The sending node then sends the determined measurement adjusting parameter to the receiving node, and the receiving node provides a link state report based on signal measurements adjusted by the measurement adjusting parameter. The adjusted link state report can then be used for link adaptation of the wireless link and/or for packet scheduling decisions.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: July 16, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: David Hammarwall, George Jöngren, Magnus Lundevall
  • Patent number: 10298354
    Abstract: The application relates to the selection of cells to form a cell coordination group for which interference management techniques such as COMP are to be applied. The cells to be selected to improve the performance of a UE in terms of throughput or delay are not necessarily the ones which are geographically the closest because in city environments shadowing effects of buildings exist. Thus, choosing the closest cells for coordinated interference management will not be a good solution in many cases. Hence, there is a need to develop another method and mechanism for more accurately generating a cell coordination group for interference management activities. This problem is solved by the application in that either the downlink interference toward the UE from the neighboring cells is estimated or the neighbor cells listen for the UE and then predict the downlink interference. Furthermore, the algorithm starts with an initial list of cells comprising the most likely handover candidates.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: May 21, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Fredric Kronestedt, Lars Klockar, Magnus Lundevall
  • Publication number: 20180084445
    Abstract: Method and apparatus for enabling accurate link quality estimation of a wireless link between a sending node and a receiving node. When the sending node receives link state reports from the receiving node, it estimates the current state of the wireless link. The sending node also determines a measurement adjusting parameter if the link state reports are deemed inaccurate in relation to the estimated link state, based on a deviation between the received link state reports and the estimated actual link state. The sending node then sends the determined measurement adjusting parameter to the receiving node, and the receiving node provides a link state report based on signal measurements adjusted by the measurement adjusting parameter. The adjusted link state report can then be used for link adaptation of the wireless link and/or for packet scheduling decisions.
    Type: Application
    Filed: November 30, 2017
    Publication date: March 22, 2018
    Inventors: David Hammarwall, George Jöngren, Magnus Lundevall
  • Patent number: 9871619
    Abstract: In one aspect of the teachings herein, a probability distribution is determined for the prediction errors determined from the differences between predicted and measured values of a quality parameter for a radio link between first and second radio nodes in a wireless communication system. In turn, the probability distribution is used to identify a prediction error value on which a link adaptation margin estimate is based, and the link adaptation margin estimate is provided for use in performing link adaptation, e.g., for use as a “back off” value for the predicted values of radio link quality which are used to make link adaptation decisions.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: January 16, 2018
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Martin Alm, Fredrik Athley, Erik Eriksson, Magnus Lundevall, Arne Simonsson
  • Patent number: 9838889
    Abstract: Method and apparatus for enabling accurate link quality estimation of a wireless link between a sending node and a receiving node. When the sending node receives link state reports from the receiving node, it estimates the current state of the wireless link. The sending node also determines a measurement adjusting parameter if the link state reports are deemed inaccurate in relation to the estimated link state, based on a deviation between the received link state reports and the estimated actual link state. The sending node then sends the determined measurement adjusting parameter to the receiving node, and the receiving node provides a link state report based on signal measurements adjusted by the measurement adjusting parameter. The adjusted link state report can then be used for link adaptation of the wireless link and/or for packet scheduling decisions.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: December 5, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: David Hammarwall, George Jöngren, Magnus Lundevall
  • Patent number: 9756509
    Abstract: It is disclosed a method and a network node (502, 70, 90) for selecting a candidate cell (14, 44, 06) to be combined with a target cell (12, 42, 502) having a radio equipment (76) connected to a radio equipment controller (74). The method comprises identifying (612, 82) at least two candidate cells where a time delay in communication between any two of: said at least two candidate cells and the target cell, is below a pre-determined time threshold, selecting (614, 84) the one (44) having the highest connection activity with the target cell; and combining (616, 86) the selected candidate cell (14, 44) and said target cell (12, 42) into a logical cell. Embodiments of the present invention have the advantage that the logical cells being defined provides have a high overall mobile network connectivity improvement.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: September 5, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Fredric Kronestedt, Magnus Lundevall
  • Patent number: 9693256
    Abstract: A receiving unit or a transmitting unit of a wireless network, and method therefor, for facilitating noise and interference measurements on an air interface. The receiving unit includes: a network interface which obtains information relating to a time-varying layout of a silent resource element (RE) grid; an electronic memory having code in communication with the network interface which stores the information; and a processing unit in communication with the electronic memory that takes a presence of a silent RE grid into account in the reception of a control or a data channel. Information relating to a time-varying layout of a silent resource element (RE) grid is obtained and a presence of a silent RE grid is taken into account in the reception of a control or a data channel.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: June 27, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: David Astely, David Hammarwall, George Jöngren, Magnus Lundevall
  • Patent number: 9615265
    Abstract: A network node and a method performed by a network node for adjusting antenna parameters of one or more antennas in a wireless telecommunications network is provided. First, the network node obtains signal strength values associated with the antennas for a number of user equipments in the wireless telecommunications network. Then, the network node determines an amount of user equipments of the number of user equipments having a signal strength value difference from two antennas that passes a determined threshold for the signal strength value difference, and adjusts at least one antenna parameter of at least one of the two antennas when the determined amount of user equipments passes a determined threshold for the amount of user equipments.
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: April 4, 2017
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Arne Simonsson, Martin Johansson, Magnus Lundevall, Sven Petersson
  • Publication number: 20160295421
    Abstract: It is disclosed a method and a network node (502, 70, 90) for selecting a candidate cell (14, 44, 06) to be combined with a target cell (12, 42, 502) having a radio equipment (76) connected to a radio equipment controller (74). The method comprises identifying (612, 82) at least two candidate cells where a time delay in communication between any two of: said at least two candidate cells and the target cell, is below a pre-determined time threshold, selecting (614, 84) the one (44) having the highest connection activity with the target cell; and combining (616, 86) the selected candidate cell (14, 44) and said target cell (12, 42) into a logical cell. Embodiments of the present invention have the advantage that the logical cells being defined provides have a high overall mobile network connectivity improvement.
    Type: Application
    Filed: December 17, 2013
    Publication date: October 6, 2016
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Fredric Kronestedt, Magnus Lundevall
  • Publication number: 20160205566
    Abstract: Method and apparatus for enabling accurate link quality estimation of a wireless link between a sending node and a receiving node. When the sending node receives link state reports from the receiving node, it estimates the current state of the wireless link. The sending node also determines a measurement adjusting parameter if the link state reports are deemed inaccurate in relation to the estimated link state, based on a deviation between the received link state reports and the estimated actual link state. The sending node then sends the determined measurement adjusting parameter to the receiving node, and the receiving node provides a link state report based on signal measurements adjusted by the measurement adjusting parameter. The adjusted link state report can then be used for link adaptation of the wireless link and/or for packet scheduling decisions.
    Type: Application
    Filed: March 22, 2016
    Publication date: July 14, 2016
    Inventors: David Hammarwall, George Jöngren, Magnus Lundevall