Patents by Inventor Bo Goransson

Bo Goransson 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).

  • Patent number: 11929773
    Abstract: There is provided mechanisms for mitigating interference in a network node. A method is performed by a control device (200). The method comprises receiving (S102) radio signals comprising at least one desired signal and interference, estimating (S104) a characteristic of the interference, wherein the estimation comprises calculating correlation statistics of power levels of frequency sub-bands comprising the interference with frequency sub-bands comprising the received radio signals. The method comprises determining (S106) an interference suppression matrix to suppress the interference in the frequency sub-bands of the received radio signals based on the estimated characteristic of the interference, wherein the interference suppression matrix is further determined based on information from inter-band interference observed across distinct sub-bands of the received radio signals.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: March 12, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Vijay Venkateswaran, Fredrik Huss, Mark Wyville, Bo Göransson
  • Patent number: 11923879
    Abstract: A radio unit for TDD multi-band operation in a wireless communication system is disclosed. The radio unit comprises a transmitting power amplifier for multi-band operation; one or more receiving amplifiers for multi-band operation and an antenna element. The radio unit further comprises one or more switch networks coupled in parallel between the power amplifier and the antenna element. Each of the one or more switch networks comprises one or more shunt switches coupled between an output of the transmitting power amplifier and a signal ground. Each of the one or more switch networks is configured to operate at a certain frequency band in transmitting or receiving mode and is controlled separately by a switching control unit based on un-synchronized TDD time slots configured according to user data traffic scheduling requirements.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: March 5, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Yuanjun Xu, Bo Göransson
  • Publication number: 20240072911
    Abstract: There is provided mechanisms for calibrating transmit antenna chains and receive antenna chains of an antenna system. A method is performed by a network node. The method comprises obtaining a set of observations from bi-directional sounding of pairs of antennas of the antenna system. Each of the antennas has one transmit antenna chain and one receive antenna chain. The observations are represented by a composite product of transmit calibration weights, receive calibration weights, and signal leakage terms. The method comprises estimating the transmit calibration weights and the receive calibration weights from a decomposition of the composite product. The method comprises calibrating the transmit antenna chains and the receive antenna chains by applying as calibration factors the estimated transmit calibration weights to the transmit antenna chains and the receive calibration weights to the receive antenna chains.
    Type: Application
    Filed: December 22, 2020
    Publication date: February 29, 2024
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Vijay Venkateswaran, Bo Göransson, Joao Vieira
  • Patent number: 11901986
    Abstract: A method for providing signals for beam-formed transmission comprises retrieving, from a memory, of first vector-associated data defined by an obtained first beam index, assigned to a first signal, scheduled to be transmitted by beamforming in a first direction. The memory has vector-associated data characterizing at least two sets of beamforming vectors for each polarization and for each one of a plurality of beam directions. The beamforming vectors for each polarization and plurality of directions present different tapering and/or non-tapering. The first vector-associated data characterizes a first selected set of beamforming vectors that are designed to give a beam in the first direction. The first beam index comprises information for defining vector-associated data characterizing a particular one of the at least two sets for the first direction. A beamforming of the first signal is initiated by use of the first vector-associated data.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: February 13, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventor: Bo Göransson
  • Patent number: 11902903
    Abstract: There is provided a method at a network node equipped with an advance antenna system, AAS. The AAS comprises a plurality of antenna elements and one or more radio frequency integrated circuits, RFICs. Each of the one or more RFICs is associated with one or more of the plurality of antenna elements. The method comprising: capturing a plurality of signal samples of one or more signal chains of each of the one or more RFICs. Each of the one or more signal chains correspond to one or more of the plurality of antenna elements and a signal sample is associated with an envelope power level at an output of the respective signal chain; and summing at least a subset of the plurality of signal samples to obtain a short term average power value at the AAS.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: February 13, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Johan Thorebäck, Magnus Nilsson, Torbjörn Wigren, Bo Göransson
  • Patent number: 11849476
    Abstract: There is provided a method for controlling interference in a received signal when scheduling in a network node for wireless communication with a set of user equipment's, UEs, said set comprising a first UE and at least a second UE, wherein the interference is passive-intermodulation interference, PIM. The method comprises receiving a scheduling request from at least the first UE transmitting on a first frequency and scheduling at least the first UE based on an interference scenario report and available PIM cancellation resources to enable efficient PIM control. The method is performed by a control device.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: December 19, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Jacob Österling, Henrik Olson, Bo Göransson, Zhanxian Wang
  • Publication number: 20230396372
    Abstract: A method and apparatus for signaling scheduling information in a spatial multiplexing wireless communications system, as well as corresponding methods and apparatus for processing such signaling information, are disclosed. Signaling scheduling information includes scheduling first and second transport blocks for simultaneous transmission during a first transmission interval on first and second data substreams, respectively, and assigning a single re-transmission process identifier for the first transmission interval and transmitting first scheduling information for the first transmission interval. The first scheduling information includes the re-transmission process identifier and first disambiguation data. Additionally, at least one of the first and second transport blocks is scheduled for re-transmission during a second transmission interval.
    Type: Application
    Filed: August 18, 2023
    Publication date: December 7, 2023
    Inventors: Bo Göransson, Per Johan Torsner, Stefan Parkvall
  • Patent number: 11838077
    Abstract: An objective problem of the invention is to provide a mechanism for improving the performance of a radio access network. According to a first aspect of the present invention, the object is achieved by a method in a first node for adapting a multi-antenna transmission to a second node over an effective channel. The first node and the second node are comprised in a wireless communication system. The method comprises the steps of obtaining at least one symbol stream and determining a precoding matrix having a block diagonal structure. The method comprises the further steps of precoding the at least one symbol stream with the determined precoding matrix, and transmitting the at least one precoded symbol stream over the effective channel to the second node.
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: December 5, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: George Jöngren, Bo Göransson
  • Publication number: 20230383693
    Abstract: A piston arrangement (12) for an internal combustion engine (10) comprises one or more pistons (14) which are at least partly constructed from a technical ceramic material. An axially disposed bore (20) for receiving a heat transfer member (22) is provided in at least one of the pistons (14). The heat transfer member (22) is reconfigurable from a first, solid, state to a second state in which at least part of the heat transfer member (22) is in a liquid state so as to transfer heat away from and thus cool the piston rod (16) as the piston reciprocates. A cylinder arrangement (46) for the internal combustion engine (10) comprises one or more cylinders (48) which are at least partly constructed from a technical ceramic material. One or more grooves (54) are formed in the cylinder (48), to decrease the thermal gradient between the inside and outside of the cylinder (48).
    Type: Application
    Filed: September 16, 2021
    Publication date: November 30, 2023
    Applicant: Carnot Ltd.
    Inventors: Archie WATTS-FARMER, Duncan DUNBAR, Bo GORANSSON
  • Publication number: 20230379980
    Abstract: There is provided mechanisms for enabling time synchronized and coordinated downlink transmission of data from a radio unit. A method is performed by a network node. The method comprises configuring at least two baseband units. The at least two baseband units are operatively connected to the radio unit for downlink transmission of data. The at least two baseband units are configured with time synchronization information for compensating for a difference in time delay between each of the at least two baseband units and the radio unit for the downlink transmission of data. The at least two baseband units are configured with time scheduling information identifying which transmission slots per frame that are allowed to be used by the at least two baseband units for the downlink transmission of data.
    Type: Application
    Filed: October 7, 2020
    Publication date: November 23, 2023
    Inventors: Bo Göransson, Pål Frenger, Anders Aronsson, Jonas Bengtsson
  • Publication number: 20230371014
    Abstract: Embodiments herein may relate to a method performed by a radio network node for handling communication for a user equipment, UE, in a wireless communication network. The radio network node configures a bandwidth to use for an antenna panel of the radio network node or a part of the antenna panel based on whether communication is for DL communication or UL communication, by configuring a number of elements of the antenna panel, of the radio network node, per carrier for the UE, wherein the number of elements is based on whether communication is for DL communication or UL communication.
    Type: Application
    Filed: October 6, 2020
    Publication date: November 16, 2023
    Inventors: Bo Göransson, Joakim Andersson
  • Patent number: 11777670
    Abstract: A method and apparatus for signaling scheduling information in a spatial multiplexing wireless communications system, as well as corresponding methods and apparatus for processing such signaling information, are disclosed. Signaling scheduling information includes scheduling first and second transport blocks for simultaneous transmission during a first transmission interval on first and second data substreams, respectively, and assigning a single re-transmission process identifier for the first transmission interval and transmitting first scheduling information for the first transmission interval. The first scheduling information includes the re-transmission process identifier and first disambiguation data. Additionally, at least one of the first and second transport blocks is scheduled for re-transmission during a second transmission interval.
    Type: Grant
    Filed: July 28, 2021
    Date of Patent: October 3, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Bo Göransson, Per Johan Torsner, Stefan Parkvall
  • Publication number: 20230223999
    Abstract: A method performed by a network node comprising an active antenna system in a telecommunication network. The network node can identify a plurality of available branches from a plurality of branches of the active antenna system for supporting a narrowband signal. The network node can further map at least two available branches from the plurality of available branches to at least one subcarrier of a plurality of subcarriers from the narrowband signal, wherein each of the at least two available branches are mapped to different sets of subcarriers from the plurality of subcarriers.
    Type: Application
    Filed: April 6, 2020
    Publication date: July 13, 2023
    Inventors: Ming Li, Bo Göransson
  • Publication number: 20230188188
    Abstract: An Advanced Antenna System (AAS) receiver and related methods are provided. According to one aspect an AAS receiver comprises a digital processing block of a Radio Frequency Integrated Circuit (RFIC). The digital processing block comprises an interface for communicating with a Central Unit (CU), and a plurality of Antenna Signal Processing Blocks (ASPBs), each receiving a digitized receive signal from a respective antenna element of an antenna array. Each ASPB comprises one or more receivers, each of which receives and processes the signal from the respective antenna element. Some receivers within the ASPB beamform the respective processed signal to produce one or more data streams to be sent to the CU. Other receivers within the ASPB provide the respective processed signal to a processing block that buffers the processed signal and sends it to the CU at a later time, e.g., when traffic to the CU is relatively lower.
    Type: Application
    Filed: May 8, 2020
    Publication date: June 15, 2023
    Inventors: Magnus Nilsson, Magnus Malmberg, Jonas Karlsson, Torbjörn Wigren, Bo Göransson, Joakim Ahlgren
  • Publication number: 20230189343
    Abstract: Systems and methods for efficient scheduling of Random Access Channel (RACH) occasions in a cellular communications system are provided. In one embodiment, a method performed by a base station comprises transmitting Synchronization Signal Blocks (SSBs) on respective transmit beams in accordance with a beam sweeping scheme. The SSBs are mapped to one or more RACH occasions in accordance with an N-to-1 mapping scheme where N is greater than 1. The method further comprises, for each RACH occasion, processing receive signals from at least a subset of antenna elements in an antenna array of the base station using respective narrowband receivers, thereby providing narrowband receive signals, and performing, based on the narrowband receive signals, random access preamble detection for multiple beam directions that correspond to at least a subset of the transmit beams on which at least a subset of the SSBs to which the RACH occasion is mapped were transmitted.
    Type: Application
    Filed: May 11, 2020
    Publication date: June 15, 2023
    Inventors: Jing Rao, Jonas Karlsson, Bo Göransson, Torsten Carlsson
  • Publication number: 20230180139
    Abstract: There is provided a method at a network node equipped with an advance antenna system, AAS. The AAS comprises a plurality of antenna elements and one or more radio frequency integrated circuits, RFICs. Each of the one or more RFICs is associated with one or more of the plurality of antenna elements. The method comprising: capturing a plurality of signal samples of one or more signal chains of each of the one or more RFICs. Each of the one or more signal chains correspond to one or more of the plurality of antenna elements and a signal sample is associated with an envelope power level at an output of the respective signal chain; and summing at least a subset of the plurality of signal samples to obtain a short term average power value at the AAS.
    Type: Application
    Filed: May 13, 2020
    Publication date: June 8, 2023
    Inventors: Johan Thorebäck, Magnus Nilsson, Torbjörn Wigren, Bo Göransson
  • Publication number: 20230170973
    Abstract: An Advanced Antenna System (AAS) receiver and related methods are provided. According to one aspect an AAS receiver comprises a digital processing block of a Radio Frequency Integrated Circuit (RFIC). The digital processing block comprises an interface for communicating with a Central Unit (CU), and a plurality of Antenna Signal Processing Blocks (ASPBs), each receiving a digitized receive signal from a respective antenna element of an antenna array. Each ASPB comprises one or more receivers, each of which receives the signal from the respective antenna element, processes the received signal, and beamforms the processed signal to produce one or more data streams to be sent to the CU. Each ASPB also includes a narrowband receiver that processes an input signal (either the signal received from the respective antenna element or that signal after processing) to create a narrowband signal that is provided to the CU directly, without beamforming.
    Type: Application
    Filed: May 8, 2020
    Publication date: June 1, 2023
    Inventors: Magnus Nilsson, Torsten John Carlsson, Peter Jakobsson, Jing Rao, Jonas Karlsson, Torbjörn Wigren, Bo Göransson
  • 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: 20230028888
    Abstract: There is provided an antenna arrangement having unequally many physical antenna elements for transmission and reception. The antenna arrangement comprises physical antenna elements. All physical antenna elements are configured for signal reception but less than all of the physical antenna elements are configured for both signal transmission and signal reception. A first portion of those physical antenna elements configured for both signal transmission and signal reception and a second portion of those physical antenna elements configured for both signal transmission and signal reception are in the antenna arrangement placed to, during operation of the antenna arrangement, be vertically separated by physical antenna elements configured for only signal reception.
    Type: Application
    Filed: February 11, 2020
    Publication date: January 26, 2023
    Inventors: Niklas Wernersson, Bo Göransson
  • Patent number: 11552681
    Abstract: A method for assisting the adaptation of a signal from a first node to a second node is provided. The first node communicates with the second node in a wireless communication system over a radio link. The second node has a codebook comprising a set of possible information alternatives for assisting the adaptation of a signal received from the first node. The second node may select an information alternative from the codebook and send it to the first node to assist the first node in adapting the signal. The first node is configured with a number of subsets, each comprising a part of the possible information alternatives. The first node requests that the second node restrict the selection of information alternatives to one of the subsets, and in response, receives an information alternative from the second node that is selected from among the subsets configured according to the configuration request.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: January 10, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: George Jöngren, Bo Göransson