Method for generating a signal train which can be played back on a tester for testing a mobile radio

A method for generating a signal sequence which sets up and maintains communication between a test device and a mobile-telephone device under test comprising:

• analyzing a command sequence with a checking device with regard to a recorded signal sequence generated from the command sequence by the test device, the command sequence being generated automatically from measured radio signals of a real radio network, wherein the command sequence is analyzed by:
• comparing the recorded signal sequence resulting from the command sequence with a standardised signal sequence, determining differences between the standardised signal sequence and the signal sequence resulting from the command sequence, determining changes to the command sequence necessary in order to generate a standard-compliant signal sequence, adding and/or replacing commands of the command sequence corresponding to the determined, necessary changes, to generate a corrected command sequence capable of setting up and maintaining communication between the test device and the mobile telephone device under test;
• determining if the signal sequence resulting from the command sequence allows registration of a mobile telephone device;
• and prefixing to the command sequence a command-sequence segment that allows the registration of the mobile telephone device if the signal sequence resulting from the command sequence does not allow registration of the mobile telephone device under test.