System, mobile communication unit and method for testing a receiver performance
A technology for mobile communication units and receivers, applied in transmission systems, wireless communications, electrical components, etc., can solve problems such as unclear receiver performance, and achieve the effect of short test time
Active Publication Date: 2012-12-19
ROHDE & SCHWARZ GMBH & CO KG
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Problems solved by technology
Thus this receiver performance is inherently ambiguous
Method used
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Embodiment Construction
[0023] figure 1 A system 1 according to the invention is shown. The system 1 comprises a test device 2 for testing a device under test, which in the illustrated embodiment is a mobile communication unit 3 such as a cellular telephone. In order to establish communication between the test unit 1 and the mobile communication device 3 , the test device 1 comprises a system emulator 4 simulating at least a part of a conventional base station with which the mobile communication unit 3 normally communicates.
[0024] In the illustrated embodiment, the system simulator 4 includes a simulation unit for simulating a serving cell and a non-serving cell, both connected to the mobile communication unit via separate unidirectional channels 6, 7 3. Each of the unidirectional channels 6 , 7 is provided for providing the mobile communication unit 3 with information given by the serving and non-serving cells of the system emulator 4 .
[0025] The information supplied by the test device 1 to...
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The invention regards a system, a mobile communication unit (3) and a method for analysing a receiver (8) performance of a mobile communication unit (3). An information is generated in a system simulator (4) and is transmitted in a transmission signal from a testing device (2) to a mobile communication unit (3) under test. The transmission signal is transmitted from the testing device (2) to the mobile communication unit (3) under test via a unidirectional 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 signal is being obtained. The information obtained from the analysis of the transmission 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 included in the backtransmission signal and the result is compared to the information originally generated.
Description
technical field [0001] The present invention relates to systems and methods for testing the performance of receivers, and corresponding mobile communication units. Background technique [0002] When testing the performance of the receiver of a mobile communication unit, it is often necessary to send information to the mobile communication unit under test and analyze the response of the corresponding mobile communication unit. The information sent to the mobile communication unit contains eg "power up" or "power down" information. The parameters for the connection of the mobile communication unit with the base station are set as a result of obtaining this information from signals received by the mobile communication unit. [0003] Information given by the base station is included in a transmission signal sent on the downlink from the base station to the mobile communication unit. In order to obtain this information itself, the transmission signal received by the mobile comm...
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IPC IPC(8): H04W24/06H04W88/02
CPCH04W24/06H04W88/02H04B17/00
Inventor 托马斯·马库施
Owner ROHDE & SCHWARZ GMBH & CO KG