Patents by Inventor Uwe Bäder

Uwe Bäder 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: 9860774
    Abstract: The present invention relates to a for testing user equipment. The test apparatus comprises an emulation module which is configured to emulate the functionality of a first user equipment and to establish a D2D link between the first user equipment and an externally arranged second user equipment which forms a user equipment under test. The test apparatus also comprises a test module which is configured to test at least one second user equipment after being connected to the emulated first user equipment of the emulation module via the established D2D communication link. The present invention further relates to a radio communication test apparatus, a method for testing user equipment and a computer program product.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: January 2, 2018
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Sandra Merkel, Pirmin Seebacher, Uwe Bäder, Andreas Roessler
  • Publication number: 20160050572
    Abstract: The present invention relates to a radio communication test apparatus for testing user equipment. The test apparatus comprises an emulation module which is configured to emulate the functionality of a first user equipment and to establish a wireless D2D communication link between the first user equipment and an externally arranged second user equipment which forms a user equipment under test. The test apparatus also comprises a test module which is configured to test a second user equipment after being connected to the emulated first user equipment of the emulation module via the established D2D communication link. The present invention further relates to a method for testing user equipment.
    Type: Application
    Filed: August 18, 2014
    Publication date: February 18, 2016
    Inventors: Sandra Merkel, Pirmin Seebacher, Uwe Bäder, Andreas Roessler
  • Publication number: 20160050573
    Abstract: The present invention relates to a for testing user equipment. The test apparatus comprises an emulation module which is configured to emulate the functionality of a first user equipment and to establish a D2D link between the first user equipment and an externally arranged second user equipment which forms a user equipment under test. The test apparatus also comprises a test module which is configured to test at least one second user equipment after being connected to the emulated first user equipment of the emulation module via the established D2D communication link. The present invention further relates to a radio communication test apparatus, a method for testing user equipment and a computer program product.
    Type: Application
    Filed: August 18, 2015
    Publication date: February 18, 2016
    Inventors: Sandra Merkel, Pirmin Seebacher, Uwe Bäder, Andreas Roessler
  • Patent number: 8774727
    Abstract: The invention related to a method and to a test device for analyzing a device communicating via a radio link. Said device comprises a plurality of antennas for communicating, together comprising an antenna arrangement. The device under test is first disposed in a first position relative to a radio field. A value of at least one piece of channel state information describing a quality of the antenna arrangement obtained via the return channel is determined in said relative position. A change in the relative position of the device under test relative to the radio field is subsequently performed. A second value of the at least on piece of channel state information is determined in said changed, new relative position.
    Type: Grant
    Filed: January 12, 2010
    Date of Patent: July 8, 2014
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Christoph Freiherr Von Gagern, Uwe Bäder
  • Publication number: 20110294437
    Abstract: The invention related to a method and to a test device for analyzing a device communicating via a radio link. Said device comprises a plurality of antennas for communicating, together comprising an antenna arrangement. The device under test is first disposed in a first position relative to a radio field. A value of at least one piece of channel state information describing a quality of the antenna arrangement obtained via the return channel is determined in said relative position. A change in the relative position of the device under test relative to the radio field is subsequently performed. A second value of the at least on piece of channel state information is determined in said changed, new relative position.
    Type: Application
    Filed: January 12, 2010
    Publication date: December 1, 2011
    Applicant: ROHDE & SCHWARZ GMBH & CO. KG
    Inventors: Christoph Freiherr Von Gagern, Uwe Bäder
  • Patent number: 7426664
    Abstract: A method for testing the (Bit) Error Ratio BER of a device against a maximal allowable (Bit) Error Ratio BERlimit with a early pass and/or early fail criterion, whereby the early pass and/or early fail criterion is allowed to be wrong only by a small probability D. ns bits of the output of the device are measured, thereby ne erroneous bits of the ns bits are detected. PDhigh and/or PDlow are obtained, whereby PDhigh is the worst possible likelihood distribution and PDlow is the best possible likelihood distribution containing the measured ne erroneous bits with the probablility D. The average numbers of erroneous bits NEhigh and NElow for PDhigh and PDlow are obtained. NEhigh and NElow are compared with NElimit=BERlimit×ns. If NElimit is higher than NEhigh or NElimit is lower than NElow the test is stopped.
    Type: Grant
    Filed: March 1, 2002
    Date of Patent: September 16, 2008
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Thomas Maucksch, Uwe Bäder