Rohde and Schwarz Gmbh & Co. Kg

Thomas A Braun

Uwe Baeder

William Powell

Moritz Harteneck

Pirmin Seebacher

Klaus-Dieter Schwarz

A system simulator for simulating a wireless system for testing a wireless device under test comprises an uplink signal receiver for receiving an uplink signal generated by the wireless device under test and providing data blocks embedded in the uplink signal, and an uplink signal impairment unit that based on a predetermined probability value sets the data blocks provided by the uplink signal receiver as valid or erroneously received.

System simulator and method for simulating a wireless system

A test unit for testing a plurality of communications devices is provided. The test unit comprises a test case database, which stores a first test case (including a first test case idle time) and a second test case. The second test case is shorter than the first test case idle time. The test unit comprises a signaling unit. The test unit comprises a test case execution manager, which reads from the test case database the first and second test case and controls the signaling unit to perform measurements according to the first test case on the first device under test until a beginning of the first test case idle time, and controls the signaling unit to perform measurements according to the second test case on the second device under test during the first test case idle time.

Test unit and test method for efficient testing during long idle periods

The invention relates to a method and to a test device () which is used to determine an error rate during the transfer of data () in a mobile radio system. Said mobile radio system comprises at least one transfer channel, wherein several data partial flows () are transferred. The several data partial flows () are produced in a signal generator unit (). A transport format is determined, in an individual manner, for each data partial flow (). The data partial flows () are sent, respectively, to a number of transfer blocks which belong together (). A device which is to be tested captures the transfer blocks () of the data partial flows () and evaluates them. According to the accuracy of the evaluation, a positive or negative actuation signal (ACK, NACK) is sent back by the device which is to be tested. An error rate of each data partial flow () is determined by the test device () from the actuation signals (ACK, NACK) which are captured by the test device ().

Method of determining an error rate and a suitable testing device

A device for a method for determining the transmission performance of sub-channels of a transmission channel in a radio-communication system is specified, where data-comprising signal carriers are generated for the setup of the transmission channel within the radio-communication system and accommodated in the sub-channels of the transmission channel, and the transmission performance of the sub-channels is determined on the basis of the signal sub-carriers superposed with interferers. In this context, each sub-channel occupies a separate bandwidth sub-range of a total bandwidth range of the transmission channel. The bandwidth sub-range is disposed within the bandwidth at a spacing distance from other bandwidth sub-ranges of the total bandwidth range, and the interferers are limited to the bandwidth sub-range allocated to the respective sub-channel.

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Munich, Germany

Thomas A Braun