| 摘要 |
A measuring system is used for testing a feedback signal transmitted by a communications device within a communications system. The measuring system comprises an antenna system and a measuring device. The measuring device transmits a signal to a communications device via the air interface and the antenna system. The communications device receives the signal and generates a feedback signal dependent upon transmission conditions of the signal, which it has determined, and transmits it to the measuring device. The measuring device measures the actual reception quality of the signal in the communications device. In this context, the measuring system implements the following stages: the measuring device modifies the signal transmitted to the communications device in such a manner that the transmitted feedback signal displays no further possibility for improvement of the transmission conditions; the transmitted signal and/or the position of the communications device and/or the antenna system is modified by the measuring device; and, the measuring device compares the feedback signal and the actual reception quality and in this manner determines the quality of the feedback signal.
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