| 摘要 |
The invention regards a system, a mobile communication unit (3) and a met hod for analysing a receiver (8) performance of a mobile communication unit (3). An information is generated in a system simulator (4) and is transmitte d in a transmission signal from a testing device (2) to a mobile communicati on unit (3) under test. The transmission signal is transmitted from the test ing device (2) to the mobile communication unit (3) under test via a unidire ctional channel (6, 7). The transmission signal is received and analyzed by the receiver (8) the performance of which is to be tested. By analyzing the received transmission signal the information included in the transmission si gnal is being obtained. The information obtained from the analysis of the tr ansmission signal is transmitted back from the mobile communication unit (3) under test in a backtransmission signal via an independent backtransmission channel (14). The backtransmission signal received by the testing device (2 ) is analysed by the testing device (2) for obtaining the information includ ed in the backtransmission signal and the result is compared to the informat ion originally generated.
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