Patents by Inventor Steven Swanchara

Steven Swanchara 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).

  • Methods, systems, and computer readable media for efficient compensation of residual phase noise in 5G new radio (NR) downlink (DL) signals
    Patent number: 11290316
    Abstract: A method for determining and compensating for residual phase noise in a 5G NR DL signal includes converting a block of 5G NR DL time domain signal samples into a block of frequency domain samples for one OFDM data symbol and equalizing and combining the frequency domain samples that fall in an outermost sample accumulation region of each quadrant to form a first composite sample for each quadrant, selecting a signal constellation point belonging to one of the four outermost constellation point decision region as a reference constellation point, rotating at least some of the first composite samples so that the first composite samples are in the same quadrant as the reference constellation point, combining the rotated first composite samples to produce a second composite sample, calculating a phase error between the second composite sample and the reference constellation point, applying phase correction corresponding to the phase error to all subcarriers of the OFDM data symbol, and generating output data from
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: March 29, 2022
    Assignee: KEYSIGHT TECHNOLOGIES, INC.
    Inventors: Syed Faisal Ali Shah, Steven Swanchara, Roger Alan Slyk
  • METHODS, SYSTEMS, AND COMPUTER READABLE MEDIA FOR EFFICIENT COMPENSATION OF RESIDUAL PHASE NOISE IN 5G NEW RADIO (NR) DOWNLINK (DL) SIGNALS
    Publication number: 20210288863
    Abstract: A method for determining and compensating for residual phase noise in a 5G NR DL signal includes converting a block of 5G NR DL time domain signal samples into a block of frequency domain samples for one OFDM data symbol and equalizing and combining the frequency domain samples that fall in an outermost sample accumulation region of each quadrant to form a first composite sample for each quadrant, selecting a signal constellation point belonging to one of the four outermost constellation point decision region as a reference constellation point, rotating at least some of the first composite samples so that the first composite samples are in the same quadrant as the reference constellation point, combining the rotated first composite samples to produce a second composite sample, calculating a phase error between the second composite sample and the reference constellation point, applying phase correction corresponding to the phase error to all subcarriers of the OFDM data symbol, and generating output data from
    Type: Application
    Filed: March 13, 2020
    Publication date: September 16, 2021
    Inventors: Syed Faisal Ali Shah, Steven Swanchara, Roger Alan Slyk