Patents by Inventor Antti Koistinen

Antti Koistinen 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).

  • Radio channel emulator having a dynamically-variable channel model for use in testing base stations and user equipment (UE) that perform analog beam forming
    Patent number: 10103823
    Abstract: A test system is provided that for testing base stations (BSs) and user equipment (UE) that includes a radio channel (RC) emulator having a dynamically-variable channel model that is configured to be dynamically varied in accordance with beam indices received in the RC emulator from the BS and/or the UE, depending on implementation scenario and on whether the BS or the UE is the DUT. The beam indices are used by the BS or US to obtain antenna element weights that are used by analog beam former circuits of the BS or UE, respectively, to weight their antenna elements to cause time-variant antenna beam patterns to be formed by their antenna arrays, which are modelled by the dynamically-variable channel model to generate time-variant signals. The RC emulator performs emulation operations and outputs faded time-variant signals for use by the BS or UE in evaluating characteristics of the DUT.
    Type: Grant
    Filed: September 30, 2017
    Date of Patent: October 16, 2018
    Assignee: Keysight Technologies, Inc.
    Inventors: Jukka Kyrolainen, Ville Tuomo Heino, Pekka Kyosti, Antti Koistinen