Rohde and Schwarz Gmbh & Co. Kg

Nokia Siemens Networks Gmbh & Co Kg

Ingo Gruber

Hui Li

Hui Chen

Dan Yu

Uwe Baeder

Francesco Rossetto

Torsten Langguth

Henrik Schober

Michael Roth

Ghassen Benhadjsalah

Harald Ibl

Holger Jauch

Harald Gsödl

Roman Elias

Lorenz Raedler

A method for automatic error diagnosis in a test environment is provided. The method comprises the step of providing a plurality of test logs associated with known types of failures, each comprising a set of files. The method further comprises the step of arranging the plurality of test logs in a defect database. Moreover, the method comprises the step of transforming the set of files of the plurality of test logs into vectors adapted to be fed into a machine learning model.

Method and system for automatic error diagnosis in a test environment

A method for determining an optimum position of a device under test when testing the device under test over-the-air is described. The method includes providing an anechoic chamber with a quiet zone, providing a device under test within the anechoic chamber, the device under test having at least two antennas, positioning the device under test within a testing area inside the anechoic chamber, the testing area including an optimum position for the device under test with respect to the quiet zone; and providing an interactive feedback signal while repositioning the device under test, wherein based on the interactive feedback signal a position of the device under test is adjusted to match the optimum position. Furthermore, a system for determining an optimum position of a device under test is provided.

Method and system for determining an optimum position of a device under test

The measuring system comprises a measuring device and a device under test (). This measuring device comprises a high-frequency processing unit (), which is embodied to receive high-frequency signals from the device under test () and/or to transmit high-frequency signals to the device under test () via a first connection (). The measuring system further comprises a test-software server unit (), which is embodied to supply test-software to the device under test ().

Test-software-supported measuring system and measuring method

A measuring device for measuring a reaction of a device under test to an uplink channel quality parameter, indicating a quality of a transmission channel from the device under test to the measuring device, comprises signal generation means, set up for generating a first signal including the uplink channel quality parameter. The uplink channel quality parameter is set by the signal generation means independent from an actual channel quality of the transmission channel. Transmission means is set up for transmitting a second signal, which is derived from the first signal or is identical to the first signal to the device under test. Receiving means is set up for receiving a third signal transmitted by the device under test and created by the device under test based upon the uplink channel quality parameter and for determining the reaction of the device under test to the uplink channel quality parameter.

Measurement device and measuring method using simulated uplink fading

The test system according to the invention for determining processing parameters of audio and/or video data in a mobile-radio device with a test device () comprising an audio/video unit () which stores the audio/video data and outputs them as audio and/or video data-packets. Moreover, the test device () comprises a mobile-radio unit (), which is connected to the audio/video unit (), whereas the mobile-radio unit () is embodied for the transmission of the audio and/or video data via a mobile-radio interface () to a mobile-radio device () under test; a detection unit (), which is connected to the mobile-radio device () under test and is embodied in order to detect audio and/or video data; and an analysis unit (), which is connected to an analysis interface () between the audio/video unit () and the mobile-radio unit () and to the detection unit ().

Test system and a test method for determining processing parameters of audio and/or video data

A method automatically initializes a mobile station during a test between a mobile station and test equipment emulating a single cell of a cellular mobile communication system, wherein the mobile station is initially registered to the cell having a first location area code. First, radio transmission into the cell is terminated by the test equipment. Then, radio transmission is restarted into the cell, but now having a second location area code, wherein the second location area code is different than the first location area code, forcing the mobile station to perform a registration procedure to the cell.

Method and test equipment for automatically initializing a mobile station during a test

The device records the data of several steps of a protocol hierarchy within a communications system. For this purpose, the data are received by a receiver and buffered by a buffer. The data consist of payload data and control information. The control information is assigned to the individual protocol-hierarchy planes. In this context, the control information of all protocol-hierarchy planes is received and buffered. Furthermore, a maximum of one copy of the payload data is buffered.

Method and device for logging communications connections at very high data rates

In a case where an access point lies outside the direct radio transmission range of a first radio station of a radio communications system, and a routing runs between the first radio station and the access point that includes at least one additional radio station is known to the first radio station and the access point, information can be transmitted from the first radio station to the access point and from the latter to the first radio station via the routing. When the access point receives information relating to an interruption in the known routing from a radio station in the routing, the first radio station downstream of the access point is informed of the interruption in the known routing and subsequently initiates a process for determining a new routing between the first radio station and the access point.

Method for determining a path in a local radio communication

The invention relates to a method and system for addressing and routing in coded communications relationships in at least two different network levels of a network with different routing levels, which are separated from one another. A first network level with the associated first routing level is demarcated from a second network level with a second routing level via at least one coding device. A network topology of both network levels is determined independently of one another in the at least two routing levels and stored respectively in routing tables. An interface in the at least one coding device is provided with an unambiguous allocation of addresses of the second routing level to addresses of the first routing level, in order to derive the topology of the second network level efficiently from the first network level.

Growing community of inventors

Munich, Germany

Ingo Gruber