4 Test vectors

26.2313GPPCellular text telephone modemMinimum performance requirementsTS

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

The following test signals are provided for use in testing compliance to the minimum performance requirements. All signals are raw data, linear 16‑bit signed PCM coded audio data at a sampling rate of 8000 Hz. All files are coded in Big‑Endian format (most significant byte first) as it is used e.g. by SUN Microsystems Sparc^TM Workstations. The files are located in the directory ./patterns of the zip‑archive ctm_testing.zip.

baudot.pcm

sine1400.pcm

sine1800.pcm

test1.pcm

test2.pcm

test3.pcm

zeros4000.pcm

ctm_master_clean.pcm

ctm_master.txt

ctm_typingmode.pcm

ctm_test_resync.pcm

The first six files contain test signals with Baudot tones and are required for the test scripts test_negotiation and test_false_detections. Furthermore, a file zeros4000.pcm is provided that contains a zero‑valued signal.

The files ctm_master.txt and ctm_master_clean.pcm contain a text message with random characters and the corresponding CTM signal. These files are required for the tests in subclause 7.2.

The files ctm_typingmode.pcm and ctm_test_resync.pcm are required for the tests in subclauses 7.4 and 7.5, respectively.