Abstract: The present invention relates to radio interference test setups and a radio interference test method for live recording and replaying RF inferences from the air. The present disclosure provides an easily deployable RF interference test setup for testing interference robustness or problematic interferers in particular in the approach to an airport or an airport runway. The present invention is based on the idea to employ specific non-commercial aerial vehicles, such as drones or aerial test vehicles, which are equipment with a suitable test equipment in order to be able to follow an approach path or flight path of a commercial plane for testing purposes.

Abstract: The present disclosure provides a method for processing acquired RF spectrum data that represents an RF signal, the method comprising acquiring at least one graphical representation of the RF spectrum data, and extracting at least one signal property of the RF signal from the graphical representation. Further, the present disclosure provides a respective signal processing device, and a respective measurement application device.

Abstract: A method for WLAN handover testing including the steps of connecting a DUT to a first WLAN access point AP1 of a wireless communication tester; measuring, by the wireless communication tester, a performance indicator of the WLAN communication between the DUT and the first access point AP1 of the wireless communication tester; gradually decrease the output power of the first access point AP1 and increase the output power of a second WLAN access point AP1 of the wireless communication tester, in order to cause the DUT to handover its connection to second access point AP2, and measuring, by the wireless communication tester, a performance indicator of the WLAN communication between the DUT and the second success point AP2 of the wireless communication tester.

Abstract: A device for generating training data sets for signal type recognition has at least one radio frequency signal generator for generating at least one artificial radio frequency signal, a radio frequency receiver connected to the at least one radio frequency signal generator for receiving the at least one artificial radio frequency signal generated by the at least one radio frequency signal generator, and a signal data recorder connected to the radio frequency receiver for storing the radio frequency signal received by the radio frequency receiver as a training data set. Further, a method for generating training data sets as well as a training data set are provided.

Abstract: Improved testing of medical devices, in particular medical devices providing wireless communication capabilities. A communication link between a medical device under test and the communication tester is established and a signal quality indicator of the established communication link is monitored while interfering the communication link by one or more interfering signals.

Abstract: Improved testing of medical devices, in particular medical devices providing wireless communication capabilities. A communication link between a medical device under test and the communication tester is established and a signal quality indicator of the established communication link is monitored while interfering the communication link by one or more interfering signals.

Abstract: Technologies and techniques for determining power parameters of at least one radio system arranged in or on a vehicle. A rotatable platform may be provided for receiving and rotating the vehicle, as well as a simulation antenna, a base station emulator connected to the simulation antenna, at least one test antenna, and at least one test device, connected to the at least one test antenna and/or to the simulation antenna, for determining at least one power parameter of the at least one radio system depending on a rotation angle of the vehicle. The simulation antenna includes at least three antennas which, in respect of a rotation axis of the rotatable platform, are arranged at identical angular distances over an entire angular range about the rotatable platform. Aspects also relate to methods for determining power parameters of at least one radio system arranged in or on a vehicle.

Abstract: System and method for testing a device under test via a wireless communication link. When testing the device under test, an interference signal may be applied to the test scenario. The generation of the interference signal may be controlled based on a monitoring of a frequency spectrum in the test scenario, in particular a frequency spectrum at the device under test. In this way, a more realistic test scenario can be achieved.

Abstract: A device for generating training data sets for signal type recognition has at least one radio frequency signal generator for generating at least one artificial radio frequency signal, a radio frequency receiver connected to the at least one radio frequency signal generator for receiving the at least one artificial radio frequency signal generated by the at least one radio frequency signal generator, and a signal data recorder connected to the radio frequency receiver for storing the radio frequency signal received by the radio frequency receiver as a training data set. Further, a method for generating training data sets as well as a training data set are provided.

Abstract: A wireless coexistence test system is described that comprises a wireless communication emulation module, a signal generator and a processor. The wireless communication emulation module is configured to establish an intended wireless communication link to a device under test. The signal generator is configured to generate at least a first unwanted signal and a second unwanted signal. The processor is configured to evaluate the intended wireless communication link with regard to at least one performance indicator. The processor is configured to adjust at least one of a level and a frequency of at least one of the first unwanted signal and the second unwanted signal based upon the outcome of the evaluation. The processor is configured to curve fit a performance degradation limit based upon at least one of the first unwanted signal, the second unwanted signal and the outcome of the evaluation. Further, a method and a computer program for testing wireless coexistence are described.

Abstract: System and method for testing a device under test via a wireless communication link. When testing the device under test, an interference signal may be applied to the test scenario. The generation of the interference signal may be controlled based on a monitoring of a frequency spectrum in the test scenario, in particular a frequency spectrum at the device under test. In this way, a more realistic test scenario can be achieved.

Abstract: A measuring system for determining phase differences of antenna element signals of antenna elements of an antenna array under test is provided. The measuring system comprises a signal generating means, which is configured to provide a measuring signal to the antenna array under test over the air and receiving means configured to measure the antenna element signals, resulting from receiving the measuring signal by the antenna elements of the antenna array under test and determine the phase difference of the antenna element signals.

Abstract: A wireless coexistence test system is described that comprises a wireless communication emulation module, a signal generator and a processor. The wireless communication emulation module is configured to establish an intended wireless communication link to a device under test. The signal generator is configured to generate at least a first unwanted signal and a second unwanted signal. The processor is configured to evaluate the intended wireless communication link with regard to at least one performance indicator. The processor is configured to adjust at least one of a level and a frequency of at least one of the first unwanted signal and the second unwanted signal based upon the outcome of the evaluation. The processor is configured to curve fit a performance degradation limit based upon at least one of the first unwanted signal, the second unwanted signal and the outcome of the evaluation. Further, a method and a computer program for testing wireless coexistence are described.

Abstract: A method for testing a communication between a mobile device and a satellite system is described, wherein testing signals are generated by using a signal generation unit, said testing signals simulating satellite signals of at least one satellite of said satellite system. Further, said testing signals are received by a device under test being used as said mobile device. Said testing signals simulate at least one of a changing satellite signal strength, a changing satellite signal quality, a changing position of said satellite and more than one satellite signal in parallel. Further, said testing signals simulate a changing position of said mobile device. In addition, a testing system for testing a communication between a mobile device and a satellite system is described.

Abstract: A mobile device is used for wireless communication with at least one flying object. The mobile device receives information from a first flying object via an actual communication channel. Furthermore, the mobile device comprises a beamforming unit for forming at least two beams. In addition to this, the beamforming unit is configured to steer a beam of the actual communication channel or an actual communication antenna of the mobile device based on the information received from the first flying object by the mobile device.

Abstract: A measuring system for determining a beamforming quality of an antenna array signal of an antenna array of a device under test. The measuring system comprises a measuring device configured to receive an antenna array signal, and to measure the antenna array signal and to determine a beamforming signal quality thereof. The antenna array signal is wirelessly transmitted to the receiver by the antenna array of a device under test. The measuring system further comprises a positioning unit configured to position the device under test in successive predefined orientations. The measuring device is configured to receive and measure the antenna array signal successively in each of the predefined orientations.

Abstract: A testing system is described, wherein said testing system is configured to perform a multipaction test on a device under test. Said testing system comprises a signal generation unit being configured to stimulate an input of said device under test, a receiving unit being configured to receive and measure at least one output signal of said device under test in order to obtain data related to a multipaction occurrence. Said signal generation unit and said receiving unit are controlled such that both units are operated simultaneously. Said signal generation unit is configured to generate a testing signal for stimulating said input, said testing signal comprising at least two carriers simultaneously. Further, a method for testing a device under test is described.

Abstract: The present invention relates to a testing system for measuring and analyzing interferences caused by wireless communication signals generated in vehicles, comprising: a plurality of vehicle devices which are arranged in a test environment in proximity to each other, wherein at least one first vehicle device comprises a transmit device for transmitting wireless test signals; wherein at least one second vehicle device comprises a receive device for receiving the transmitted test signals; at least one multiport analyzer device for analyzing test signals, wherein the analyzer device is connected to at least one of the transmit devices and to at least one of the receive devices; wherein the analyzer device is configured to analyze at least one wireless communication link between the at least one first vehicle device and the at least one second vehicle device under various test conditions based on the transmitted and received test signals.

Abstract: The present invention relates to a testing system for measuring and analyzing interferences caused by wireless communication signals generated in vehicles, comprising: a plurality of vehicle devices which are arranged in a test environment in proximity to each other, wherein at least one first vehicle device comprises a transmit device for transmitting wireless test signals; wherein at least one second vehicle device comprises a receive device for receiving the transmitted test signals; at least one multiport analyzer device for analyzing test signals, wherein the analyzer device is connected to at least one of the transmit devices and to at least one of the receive devices; wherein the analyzer device is configured to analyze at least one wireless communication link between the at least one first vehicle device and the at least one second vehicle device under various test conditions based on the transmitted and received test signals.

Abstract: A system for measuring or characterizing a multi-element antenna having at least two antenna elements comprises a vector network analyzer with at least two input/output ports. Each input/output port of the vector network analyzer is connected to one antenna element of the multi-element antenna. The vector network analyzer has generator means for generating waves at each of its input/output ports, which are coherent to each other.