LTE TDD
For Waveform Playback (ARB) capability.
This topic describes the settings of the Downlink > CRS node for an Advanced TDD Downlink carrier.
CRS Antenna Mapping Configuration
Sets a power level, in dB for the Cell Specific Reference Signal.
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:CRS:POWer <rel_ampl> [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:CRS:POWer? |
|
SCPI Example |
:RADio:LTETdd:WAVeform:CCARrier:DLINk:CRS:POWer 0 :RADio:LTETdd:WAVeform:CCARrier:DLINk:CRS:POWer? |
|
Range |
-60.000 to 20.000 dB |
|
Preset |
0 |
|
State Saved |
Yes |
|
Min |
-60 |
|
Max |
20 |
|
Initial S/W Revision |
A.20.01 |
Selects the number of antennas for Cell Specific Reference Signals (CRS). When the Total Number of Antennas value is changed, the software automatically sets the Number of CRS Antenna Ports setting.
The Number of CRS Antenna Ports must be ≤ the Total Number of Antennas.
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:CRS:NAPorts PORT1|PORT2|PORT4 [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:CRS:NAPorts? |
|
SCPI Example |
:RADio:LTETdd:WAVeform:CCARrier:DLINk:CRS:NAPorts PORT2 :RADio:LTETdd:WAVeform:CCARrier:DLINk:CRS:NAPorts? |
|
Couplings |
Coupled to Total Number of Antennas (must be ≤ Total Number of Antennas). |
|
Preset |
PORT1 |
|
State Saved |
Yes |
|
Min |
N/A |
|
Max |
N/A |
|
Initial S/W Revision |
A.20.01 |
Selects the CRS Antenna Mapping Configuration.
Auto: CRS ports 0-3 are automatically mapped to the physical antennas by the software.
Manual: The ports require mapping to the physical antennas. See the CRS0|1|2|3 Antenna Mapping settings.
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:CRS:AMAPconfig AUTo|MAN [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:CRS:AMAPconfig? |
|
SCPI Example |
:RADio:LTETdd:WAVeform:CCARrier:DLINk:CRS:AMAPconfig AUTo :RADio:LTETdd:WAVeform:CCARrier:DLINk:CRS:AMAPconfig? |
|
Dependencies |
Controls whether CRS0/1/2/3 Antenna Mapping settings are editable. |
|
Preset |
AUTo |
|
State Saved |
Yes |
|
Min |
N/A |
|
Max |
N/A |
|
Initial S/W Revision |
A.20.01 |
Enter comma-separated values of 0 or 1 to assign a physical antenna to the CRS port 0. The number of CRS ports that are displayed is dependent on the number of antennas in the configuration and the Number of CRS Antenna Ports setting.
Example: 4-antenna configuration with Number of CRS Antenna Ports = 4. CRS0 Antenna Mapping = 0,0,1,0 assigns CRS0 to physical antenna 3.
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:CRS0:AMAP <string> [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:CRS0:AMAP? |
|
SCPI Example |
:RADio:LTETdd:WAVeform:CCARrier:DLINk:CRS0:AMAP "1" :RADio:LTETdd:WAVeform:CCARrier:DLINk:CRS0:AMAP? |
|
Dependencies |
Inactive unless CRS Antenna Mapping Configuration is set to Manual. |
|
Preset |
"1" (If Total Number of Antenna=1) "1,1,0,0" (If Total Number of Antenna=4 and Number of CRS Antenna Ports=2) "1,1,1,1" (If Total Number of Antenna=4 and Number of CRS Antenna Ports=1) "1,1,0,0,0,0,0,0" (If Total Number of Antenna=8 and Number of CRS Antenna Ports=4) "1,1,1,1,1,1,1,1" (If Total Number of Antenna=8 and Number of CRS Antenna Ports=1) |
|
State Saved |
Yes |
|
Min |
N/A |
|
Max |
N/A |
|
Initial S/W Revision |
A.20.01 |
Enter comma-separated values of 0 or 1 to assign CRS port 1 to a physical antenna. See CRS 0 Antenna Mapping for the format and example.
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:CRS1:AMAP <string> [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:CRS1:AMAP? |
|
SCPI Example |
:RADio:LTETdd:WAVeform:CCARrier:DLINk:CRS1:AMAP "0" :RADio:LTETdd:WAVeform:CCARrier:DLINk:CRS1:AMAP? |
|
Dependencies |
Inactive until CRS Antenna Mapping Configuration is set to Manual and Number of CRS Antenna Ports ≥ 2. |
|
Preset |
"0,1" (If Total Number of Antenna=2 and Number of CRS Antenna Ports=2) "0,0,1,1" (If Total Number of Antenna=4 and Number of CRS Antenna Ports=2) "0,0,1,1,0,0,0,0" (If Total Number of Antenna=8 and Number of CRS Antenna Ports=4) |
|
State Saved |
Yes |
|
Min |
N/A |
|
Max |
N/A |
|
Initial S/W Revision |
A.20.01 |
Enter comma-separated values of 0 or 1 to assign a physical antenna to CRS port 2. See CRS 0 Antenna Mapping for the format and example.
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:CRS2:AMAP <string> [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:CRS2:AMAP? |
|
SCPI Example |
:RADio:LTETdd:WAVeform:CCARrier:DLINk:CRS2:AMAP "0" :RADio:LTETdd:WAVeform:CCARrier:DLINk:CRS2:AMAP? |
|
Dependencies |
Inactive until CRS Antenna Mapping Configuration is set to Manual and Number of CRS Antenna Ports = 4. |
|
Preset |
"0,0,1,0" (If Total Number of Antenna=4 and Number of CRS Antenna Ports=4) "0,0,0,0,1,1,0,0" (If Total Number of Antenna=8 and Number of CRS Antenna Ports=4) |
|
State Saved |
Yes |
|
Min |
N/A |
|
Max |
N/A |
|
Initial S/W Revision |
A.20.01 |
Enter comma-separated values of 0 or 1 to assign CRS port 3 to a physical antenna. See CRS 0 Antenna Mapping for the format and example.
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:CRS3:AMAP <string> [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:CRS3:AMAP? |
|
SCPI Example |
:RADio:LTETdd:WAVeform:CCARrier:DLINk:CRS3:AMAP "0" :RADio:LTETdd:WAVeform:CCARrier:DLINk:CRS3:AMAP? |
|
Dependencies |
Inactive until CRS Antenna Mapping Configuration is set to Manual and Number of CRS Antenna Ports = 4. |
|
Preset |
"0,0,0,1" (If Total Number of Antenna=4 and Number of CRS Antenna Ports=4) "0,0,0,0,0,0,1,1" (If Total Number of Antenna=8 and Number of CRS Antenna Ports=4) |
|
State Saved |
Yes |
|
Min |
N/A |
|
Max |
N/A |
|
Initial S/W Revision |
A.20.01 |
Selects the PDSCH cell specific ratio.
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:PDSCh:CSRatio PBPa1|PB0|PB1|PB2|PB3 [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:PDSCh:CSRatio? |
|
SCPI Example |
:RADio:LTETdd:WAVeform:CCARrier:DLINk:PDSCh:CSRatio PBPa1 |
|
Preset |
PBPa1 |
|
State Saved |
Yes |
|
Min |
N/A |
|
Max |
N/A |
|
Initial S/W Revision |
A.20.01 |