The command enables RF transmitter with the given parameters. It also measures TX power with an internal measurement receiver in time domain and returns the measurement result. When using TX burst mode, see TX burst mode.
The command parameter and its value are the following:
TX ON has the following parameters:
Valid range 6000–22000 (corresponds to 600.0 MHz–2200.0 MHz).
Valid range from +23 to −50.
Valid range 0–1. NB1 (0) or M1 (1).
The allowed combinations for <param5>, <param6>, and <param7> for both system mode (<param3>) values are listed in the following table:
System mode <param3> | RB/Tone count <param5> | RB/Tone start position <param6> | Subcarrier spacing <param7> |
---|---|---|---|
NB1 (0) | 1 | 0–11 | 0 |
3 | 0, 3, 6, 9 | 0 | |
6 | 0, 6 | 0 | |
12 | 0 | 0 | |
1 | 0–47 | 1 | |
M1 (1) | 1 | 0–5 | 0 |
2 | 0–4 | 0 | |
3 | 0–3 | 0 | |
4 | 0–2 | 0 | |
5 | 0–1 | 0 | |
6 | 0 | 0 |
Response syntax when <operation> is ON:
%XRFTEST: <antenna_power>
The response value is the following:
The following command example enables the RF transmitter for Band 5, 830.0 MHz, +17 dBm, NB1, BPSK, 12 tones, tone start position 0, subcarrier spacing 15 kHz, system bandwidth NB1, NB index 0, TX burst mode disabled:
%XRFTEST=1,1,5,8300,17,0,3,12,0,0,0,0,0
%XRFTEST: 271 OK
The following command example enables the RF transmitter for Band 5, 830 MHz, +17 dBm, M1, 16-QAM, 6 RB, RB start position 0, subcarrier spacing 15 kHz, system bandwidth 5 MHz, NB index 3, TX burst mode disabled::
%XRFTEST=1,1,5,8300,17,1,1,6,0,0,3,3,0
%XRFTEST: 271
OK
TX burst mode is enabled when <param10> is set to 1. The mode allows non-continuous TX transmission. The ON and OFF periods are based on the reference measurement channel uplink subframe scheduling that is defined for M1 in 3GPP TS 36.521 Annex A, Section A.2.2 and for NB1 in 3GPP TS 36.521 Annex A, Section A.2.4. The burst signal is transmitted until the TX OFF command is given.v1.2.1pti_v1.1.x≥1
The following table describes the different waveforms supported by <param3>, <param4>, <param5>, and <param7>:
System mode <param3> | Modulation <param4> | RB/Tone count <param5> | Subcarrier spacing <param7> |
---|---|---|---|
NB1 (0) | 0 | 1 | 1 |
0 | 1 | 0 | |
0 | 3 | 0 | |
0 | 6 | 0 | |
0 | 12 | 0 | |
3 | 1 | 0 | |
3 | 1 | 1 | |
M1 (1) | 0, 1 | 1–6 | 0 |
Response syntax when <operation> is ON and TX burst mode is enabled:
%XRFTEST: OK
The following command example enables the RF transmitter for Band 5, 830 MHz, +17 dBm, M1, 16-QAM, 6 RB, RB start position 0, subcarrier spacing 15 kHz, system bandwidth 5 MHz, NB index 3, TX burst mode enabled:
%XRFTEST=1,1,5,8300,17,1,1,6,0,0,3,3,1
OK
The following command example disables the RF transmitter:
%XRFTEST=1,0
OK