Rohde and Schwarz Gmbh & Co. Kg

Adrian Schumacher

Andreas Michl

Heino Gerlach

The measurement method presented and the measuring device presented allow inferences to be gained regarding the status and the quality of mobile telephone user equipment by correlating operating parameters with the transmission power of a mobile telephone transmitter and the Transport Format Combination Indicator (TFCI).

Method and measuring system for the measurement and testing of a  mobile-telephone device

A measuring device for measuring a device under test comprises a first subscriber, a second subscriber, a first virtual antenna array and a processing device. The device under test in this context is a mobile station. The first virtual antenna array comprises at least two mobile stations. The first virtual antenna array contains the device under test. The first subscriber is arranged in such a manner that it transmits signals to the first virtual antenna array. The first virtual antenna array in this context is arranged in such a manner that it transmits signals at least indirectly to the second subscriber. The processing device is designed in such a manner that it compares signals transmitted to the device under test and transmitted from the device under test.

Method and system for measuring mobile stations in communications networks with virtual antenna arrays

The electronic circuit arrangement is used for generating poly-phase sequences as synchronization sequences and/or reference sequences in radio communications systems. It comprises a first adder, a first multiplier, a first register, a second register, a first counter and a trigonometry device. The first adder adds a value (k) formed from the value (k) of the counter to the value (B) of the first register. The first multiplier multiplies the value (A) of the second register by a value (y) formed from the value (B) of the first register and the value (k) of the counter. The trigonometry device forms the real part and the imaginary part of the present value of the poly-phase sequence (a) from a value formed at least from the output value (w) of the first multiplier.

Arrangement for generating poly-phase sequences

The invention relates to a method for testing a mobile radio device comprising at least one first antenna () and a second antenna (), and to a mobile radio device () and test equipment (). A signal generation unit () of the test equipment () generates a test signal (). The test signal is transmitted to a mobile radio device () to be tested and is received by the mobile radio device () and evaluated. The mobile radio device () then generates a response signal () and a transmission schedule () for transmitting the response signal via the first antenna () and/or the second antenna () is defined. The response signal () is transmitted according to the transmission schedule and received by the test equipment (). The transmission schedule used is determined by the test equipment. The transmission schedule () used is then determined.

Test equipment and mobile radio device and a method for testing a mobile radio device

A method detects a bandwidth that is transmitted by a transmitter in a radio communications system, which is based on transmission frames. The transmission frames comprise a fixed time extension and a variable spectral extension. The transmission frames consist of a plurality of sub-units. Each sub-unit of the transmission frames contains a control channel, which is subdivided into two sub-control channels. The two sub-control channels are arranged at the spectral edges of the sub-units of the transmission frames. The transmitted bandwidth is investigated by determining the spectral extension of the transmission frame. The spectral extension of the transmission frame is determined by determining the spectral position of the sub-control channels in the sub-units of the transmission frames.

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Munich, Germany

Adrian Schumacher