Patents by Inventor Leonard LIGHTSTONE

Leonard LIGHTSTONE 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: 20220110013
    Abstract: A method and network node for differentiated handling of at least one interaction of network nodes within a communication network. The method includes obtaining, at a first network node, information about a category of at least one second network node related to an interaction type, and selecting a communication algorithm based on the obtained information to provide the differentiated handling of the at least one interaction of network nodes within the communication network.
    Type: Application
    Filed: December 15, 2021
    Publication date: April 7, 2022
    Inventors: Leonard LIGHTSTONE, Alex STEPHENNE, Dongsheng YU
  • Patent number: 11234143
    Abstract: A method and network entity for differentiated handling of at least one interaction of network nodes within a communication network. The method includes obtaining, at a first network node, information about a category of at least one second network node related to an interaction type, a communication channel having been established between the first network node and the at least one second network node, and selecting a communication algorithm based on the obtained information to provide the differentiated handling of the at least one interaction of network nodes within the communication network.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: January 25, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Leonard Lightstone, Alex Stephenne, Dongsheng Yu
  • Publication number: 20210376992
    Abstract: According to one aspect of the disclosure, a radio node for Time Division Duplex, TDD, communications is provided. The radio node includes processing circuitry configured to inject a signal into a time window where the time window is positioned, in a time domain, between a TDD first direction subframe to a TDD second direction subframe and the time window has a time duration less than the TDD first direction subframe and TDD second direction subframe, and perform at least one function using the injected signal.
    Type: Application
    Filed: August 24, 2018
    Publication date: December 2, 2021
    Inventors: Leonard LIGHTSTONE, Christian BRAUN
  • Patent number: 10972193
    Abstract: A method and apparatus for calibrating an antenna array are described. Input signals and feedback signals are received, where the feedback signal is a combination of the input signals as captured after having traversed transmit paths and prior to being transmitted at a plurality of sub-arrays. A first interference reduced feedback signals is determined. A current estimation of the impairment function is determined. A second interference reduced feedback signals based on the current estimation of the impairment function, the input signals and the feedback signal. Responsive to determining that the power of the second interference reduced feedback signal satisfies a selection criteria, the current estimation of the impairment function is caused to be used for each one of the plurality of transmit paths for calibration of the antenna array and removing distortion.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: April 6, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Marthinus Willem Da Silveira, Leonard Lightstone, Neil McGowan
  • Publication number: 20200351000
    Abstract: A method and apparatus for calibrating an antenna array are described. Input signals and feedback signals are received, where the feedback signal is a combination of the input signals as captured after having traversed transmit paths and prior to being transmitted at a plurality of sub-arrays. A first interference reduced feedback signals is determined. A current estimation of the impairment function is determined. A second interference reduced feedback signals based on the current estimation of the impairment function, the input signals and the feedback signal. Responsive to determining that the power of the second interference reduced feedback signal satisfies a selection criteria, the current estimation of the impairment function is caused to be used for each one of the plurality of transmit paths for calibration of the antenna array and removing distortion.
    Type: Application
    Filed: September 6, 2017
    Publication date: November 5, 2020
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Marthinus Willem DA SILVEIRA, Leonard LIGHTSTONE, Neil MCGOWAN
  • Publication number: 20200220629
    Abstract: Methods and apparatus are provided for calibrating an antenna array in a receiver. A training signal for calibrating the antenna array is injected into a data signal received on each receive path to generate combined signals on each receive path. The combined signals are equalized by respective equalizers. The coefficients of the equalizers are determined by comparing a feedback signal for each receive path with the equalized signal to estimate the impairment on each received path. The estimated impairment on each receive path is used to adapt the equalize coefficients for a respective equalizer to compensate for the impairment. After equalization, an estimate of the observed training signal on each receive path is subtracted from the equalized signal for the same receive path to generate estimates of the received data signals for demodulation and decoding.
    Type: Application
    Filed: September 25, 2017
    Publication date: July 9, 2020
    Inventors: Leonard Lightstone, Martin Da Silveira, Neil McGowan
  • Patent number: 10623974
    Abstract: A method, container repository and network node for determining at least one communication algorithm for communication between a first network node and a second network node. The method includes receiving status information for the first network node and the second network node, a communication channel having been established between the first network node and the second network node, determining a first category for the first network node based on the received status information for the first network node and determining a second category for the second network node based on the received status information for the second network node, creating a pairing entry in a container repository, the pairing entry including a pairing of the first category for the first network node with the second category for the second network node, and identifying at least one communication algorithm based at least on the pairing entry.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: April 14, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Leonard Lightstone, Alex Stephenne, Dongsheng Yu
  • Patent number: 10327219
    Abstract: The present disclosure relates to systems and methods for determining the location of a wireless device in a shared cell deployment/system. In some embodiments, a method of operation of one or more network nodes comprises obtaining separate samples of at least a portion of one or more uplink transmissions received by at least a subset of a plurality of Receive/Transmit (R/T) points in a shared cell from a wireless device. The separate samples comprise, for each R/T point of the at least a subset of the plurality of R/T points in the shared cell, a sample of at least a portion of an uplink transmission received by the R/T point from the wireless device. The method further comprises performing multilateration based on range estimates for ranges between the wireless device and the at least a subset of the plurality of R/T points determined from the separate samples.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: June 18, 2019
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Virgil Cimpu, Leonard Lightstone
  • Patent number: 10314039
    Abstract: Systems and methods are described herein relating to building and using one or more databases storing position-pair-dependent and/or node-dependent interference related information in a cellular communications system. In some embodiments, a method of operation of a node associated with one or more cellular communications networks includes obtaining position-pair-dependent interference related information for pairs of positions. The position-pair-dependent interference related information includes, for each pair of positions including a first position and a second position, information regarding interference caused by wireless transmissions originating at the first position to wireless receptions at the second position. The method further includes storing interference related information including the position-pair-dependent interference related information in one or more databases and providing access to the one or more databases.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: June 4, 2019
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Alex Stephenne, Wayne Ding, Leonard Lightstone, Dongsheng Yu
  • Patent number: 10225797
    Abstract: Systems and methods for passive proximity detection of wireless devices in a cellular communications network are disclosed. In one embodiment, a supporting radio access node in a cellular communications network including one or more coverage radio access nodes in a coverage layer and one or more supporting radio access nodes in a supporting layer is disclosed. In this embodiment, the supporting radio access node detects a ranging signal transmitted by a wireless device while passively listening for a ranging signal. The supporting radio access node receives ranging assistance information from an anchor radio access node of the wireless device in the coverage layer and determines a range estimate for a range between the wireless device and the supporting radio access node based on the ranging signal transmitted by the wireless device and detected by the supporting radio access node and the ranging assistance information.
    Type: Grant
    Filed: April 3, 2014
    Date of Patent: March 5, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Leonard Lightstone, Christopher Richards, Edward Mah
  • Publication number: 20190028912
    Abstract: A method and network entity for differentiated handling of at least one interaction of network nodes within a communication network. The method includes obtaining at a first network node, information about a category of at least one second network node related to an interaction type, a communication channel having been established between the first network node and the at least one second network node, and selecting a communication algorithm based on the obtained information to provide the differentiated handling of the at least one interaction of network nodes within the communication network.
    Type: Application
    Filed: June 23, 2016
    Publication date: January 24, 2019
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Leonard LIGHTSTONE, Alex STEPHENNE, Dongsheng YU
  • Publication number: 20190014503
    Abstract: A method, container repository and network node for determining at least one communication algorithm for communication between a first network node and a second network node. The method includes receiving status information for the first network node and the second network node, a communication channel having been established between the first network node and the second network node, determining a first category for the first network node based on the received status information for the first network node and determining a second category for the second network node based on the received status information for the second network node, creating a pairing entry in a container repository, the pairing entry including a pairing of the first category for the first network node with the second category for the second network node, and identifying at least one communication algorithm based at least on the pairing entry.
    Type: Application
    Filed: June 23, 2016
    Publication date: January 10, 2019
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Leonard LIGHTSTONE, Alex STEPHENNE, Dongsheng YU
  • Patent number: 10088552
    Abstract: It is presented a method for determining a position of a wireless device, the method being performed in a network node connected to a plurality of remote radio heads via a combiner. The method comprises the steps of: adjusting a weighting of an uplink signal for at least one of the remote radio heads; measuring a signal quality of a combined uplink signal received via the combiner; repeating the steps of adjusting and measuring until an exit condition is true; and determining a position of the wireless device based on how the measured signal quality differs for adjustments of weighting of the uplink signal for different remote radio heads.
    Type: Grant
    Filed: June 28, 2015
    Date of Patent: October 2, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Ulf Skärby, Fredrik Ovesjö, Christian Skärby, Leonard Lightstone, Stéphane Tessier, I
  • Publication number: 20180263009
    Abstract: The present disclosure relates to systems and methods for determining the location of a wireless device in a shared cell deployment/system. In some embodiments, a method of operation of one or more network nodes comprises obtaining separate samples of at least a portion of one or more uplink transmissions received by at least a subset of a plurality of Receive/Transmit (R/T) points in a shared cell from a wireless device. The separate samples comprise, for each R/T point of the at least a subset of the plurality of R/T points in the shared cell, a sample of at least a portion of an uplink transmission received by the R/T point from the wire-less device. The method further comprises performing multi-lateration based on range estimates for ranges between the wireless device and the at least a subset of the plurality of R/T points determined from the separate samples.
    Type: Application
    Filed: September 4, 2015
    Publication date: September 13, 2018
    Inventors: Virgil Cimpu, Leonard Lightstone
  • Patent number: 10028296
    Abstract: A node for determining a communication resource management algorithm is provided. The node includes a communication interface configured to obtain a measurement characteristic from a network device, and a circuitry containing instructions. When executed, the instructions cause the node to search a container repository to determine the existence of a measurement category for the measurement characteristic obtained from the network device, and when the container repository includes the measurement category for the network device, determine the communication resource management algorithm based at least on the measurement category.
    Type: Grant
    Filed: June 8, 2015
    Date of Patent: July 17, 2018
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Alex Stephenne, Leonard Lightstone, DongSheng Yu
  • Publication number: 20180188350
    Abstract: It is presented a method for determining a position of a wireless device, the method being performed in a network node connected to a plurality of remote radio heads via a combiner. The method comprises the steps of: adjusting a weighting of an uplink signal for at least one of the remote radio heads; measuring a signal quality of a combined uplink signal received via the combiner; repeating the steps of adjusting and measuring until an exit condition is true; and determining a position of the wireless device based on how the measured signal quality differs for adjustments of weighting of the uplink signal for different remote radio heads.
    Type: Application
    Filed: June 28, 2015
    Publication date: July 5, 2018
    Inventors: Ulf SKÄRBY, Fredrik OVESJÖ, Christian SKÄRBY, Leonard LIGHTSTONE, Stéphane TESSIER, I
  • Patent number: 10006984
    Abstract: Systems and methods for determining a location of a wireless device are disclosed. In one embodiment, a method of operation of a central processing node for a shared cell of a cellular communications network includes obtaining signal strength measurements for a signal received from a wireless device at multiple Reception/Transmission (R/T) points in the shared cell. The signal strength measurements are simultaneous signal strength measurements made on signal discrimination space resources in an uplink of the shared cell. Further, the signal discrimination space resources are matched to capabilities of power meters utilized to generate the signal strength measurements. The method further includes identifying one or more of the R/T points having the best signal strength measurements and estimating a location of the wireless device based on known locations of the identified R/T point(s).
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: June 26, 2018
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Leonard Lightstone, Garry Irvine, François Cardinal, Peter Pääkkönen, Adrien Comeau
  • Patent number: 9838903
    Abstract: A wireless communication method and system are provided in which an uplink data stream that has uplink data associated with a user device is received. Channel performance data based at least in part on a portion of the uplink data stream is determined. A determination is made whether the channel performance data meets a predetermined performance level. The portion of the uplink data stream is discarded when the channel performance data does not meet the predetermined performance level. The portion of the uplink data stream is tagged for additional processing when the channel performance data meets the predetermined performance level.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: December 5, 2017
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Leonard Lightstone, Gary David Boudreau, Edward Mah
  • Publication number: 20170265189
    Abstract: Systems and methods are described herein relating to building and using one or more databases storing position-pair-dependent and/or node-dependent interference related information in a cellular communications system. In some embodiments, a method of operation of a node associated with one or more cellular communications networks comprises obtaining position-pair-dependent interference related information for pairs of positions. The position-pair-dependent interference related information comprises, for each pair of positions comprising a first position and a second position, information regarding interference caused by wireless transmissions originating at the first position to wireless receptions at the second position. The method further comprises storing interference related information comprising the position-pair-dependent interference related information in one or more databases and providing access to the one or more databases.
    Type: Application
    Filed: November 24, 2015
    Publication date: September 14, 2017
    Inventors: Alex Stephenne, Wayne Ding, Leonard Lightstone, Dongsheng Yu
  • Publication number: 20170150516
    Abstract: A node for determining a communication resource management algorithm is provided. The node includes a communication interface configured to obtain a measurement characteristic from a network device, and a circuitry containing instructions. When executed, the instructions cause the node to search a container repository to determine the existence of a measurement category for the measurement characteristic obtained from the network device, and when the container repository includes the measurement category for the network device, determine the communication resource management algorithm based at least on the measurement category.
    Type: Application
    Filed: June 8, 2015
    Publication date: May 25, 2017
    Inventors: Alex STEPHENNE, Leonard LIGHTSTONE, DongSheng YU