Patents by Inventor Jürgen HELLSTAB

Jürgen HELLSTAB 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).

  • Method for processing of passive intermodulation products
    Patent number: 11575401
    Abstract: An apparatus includes an estimation circuitry configured to receive a first set of one or more digital signals of transmitters of a communication system, and capture a set of one or more radio frequency signals that have been generated from the first set of digital signals The set of radio frequency signals being input of an antenna system of the communication system. Based on the first set of digital signals and the corresponding set of radio frequency signals, a set of weights related to a distortion effect caused by the generation of the radio frequency signals is derived. A received second set of digital signals is weighted using the set of weights, resulting in filtered signals. Using the filtered signals, a correction signal indicative of an interference caused by transmission of the second set of digital signals at a receiver of the communication system is estimated.
    Type: Grant
    Filed: September 28, 2021
    Date of Patent: February 7, 2023
    Assignee: NOKIA SOLUTIONS AND NETWORKS OY
    Inventors: Marko Fleischer, Jan Hellmann, Rene Röschke, Björn Jelonnek, Jürgen Hellstab
  • METHOD FOR PROCESSING OF PASSIVE INTERMODULATION PRODUCTS
    Publication number: 20220109462
    Abstract: An apparatus includes an estimation circuitry configured to receive a first set of one or more digital signals of transmitters of a communication system, and capture a set of one or more radio frequency signals that have been generated from the first set of digital signals The set of radio frequency signals being input of an antenna system of the communication system. Based on the first set of digital signals and the corresponding set of radio frequency signals, a set of weights related to a distortion effect caused by the generation of the radio frequency signals is derived. A received second set of digital signals is weighted using the set of weights, resulting in filtered signals. Using the filtered signals, a correction signal indicative of an interference caused by transmission of the second set of digital signals at a receiver of the communication system is estimated.
    Type: Application
    Filed: September 28, 2021
    Publication date: April 7, 2022
    Inventors: Marko FLEISCHER, Jan HELLMANN, Rene RÖSCHKE, Björn JELONNEK, Jürgen HELLSTAB