LTE TDD
For Waveform Playback (ARB) capability.
This topic describes the settings of the Downlink > Cell Specific Reference Signal node for a Basic TDD carrier.
Cell Specific Reference Signal Power
Sets the power level in dB for the cell-specific reference signals (CRS).
See 3GPP TS 36.213.
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SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:CRS:POWer <integer> [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:CRS:POWer? |
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SCPI Example |
RADio:LTETdd:WAVeform:CCARrier:DL:CRS:POWer 0.000 RADio:LTETdd:WAVeform:CCARrier:DL:CRS:POWer? |
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Preset |
0.000 dB |
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State Saved |
Yes |
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Min |
-60.000 dB |
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Max |
20.000 dB |
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Initial S/W Revision |
A.20.01 |
Selects whether Number of CRS Antenna Ports and CRS Antenna Port are set automatically by the software (Auto) or manually by the user (Manual).
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SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:CRS:APORt:CONFig AUTO|MANual [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:CRS:APORt:CONFig? |
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SCPI Example |
RADio:LTETdd:WAVeform:CCARrier:DL:CRS:APORt:CONFig AUTO RADio:LTETdd:WAVeform:CCARrier:DL:CRS:APORt:CONFig? |
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Notes |
When Auto, Number of CRS Antenna Ports and CRS Antenna Port are read only. |
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Dependencies |
Controls read/write state of Number of CRS Antenna Ports and CRS Antenna Port. |
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Preset |
AUTO |
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State Saved |
Yes |
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Initial S/W Revision |
A.20.01 |
Sets the number of antenna ports used for CRS transmission.
When CRS Antenna Configuration is Auto, this setting is set automatically based on Total Number of Antennas.
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SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:CRS:APORt:COUNt P1|P2|P4 [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:CRS:APORt:COUNt? |
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SCPI Example |
RADio:LTETdd:WAVeform:CCARrier:DL:CRS:APORt:COUNt P1 RADio:LTETdd:WAVeform:CCARrier:DL:CRS:APORt:COUNt? |
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Notes |
Read-only when CRS Antenna Configuration is Auto. Must be equal to or less than Total Number of Antennas. |
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Couplings |
Controlled by CRS Antenna Configuration. Controls the available CRS Antenna Port selections. |
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Preset |
P1 |
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State Saved |
Yes |
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Initial S/W Revision |
A.20.01 |
Sets the virtual antenna port used for CRS transmission.
When CRS Antenna Configuration is Auto, this is set to Antenna Port mod Number of CRS Antenna Ports.
See 3GPP TS 36.211.
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SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:CRS:APORt P0|P1|P2|P3 [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:CRS:APORt? |
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SCPI Example |
RADio:LTETdd:WAVeform:CCARrier:DL:CRS:APORt P0 RADio:LTETdd:WAVeform:CCARrier:DL:CRS:APORt? |
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Notes |
Read-only when CRS Antenna Configuration is Auto. Auto value = Antenna Port mod Number of CRS Antenna Ports. |
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Couplings |
Controlled by CRS Antenna Configuration. Available port selections depend on Number of CRS Antenna Ports. |
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Preset |
P0 |
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State Saved |
Yes |
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Initial S/W Revision |
A.20.01 |
Sets the ratio of PDSCH EPRE to CRS EPRE (rho_B/rho_A).
See 3GPP TS 36.213 Table 5.2-2.
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SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:CRS:PDSCh:RATio PBPa1|PB0|PB1|PB2|PB3 [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:CRS:PDSCh:RATio? |
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SCPI Example |
RADio:LTETdd:WAVeform:CCARrier:DL:CRS:PDSCh:RATio PBPa1 RADio:LTETdd:WAVeform:CCARrier:DL:CRS:PDSCh:RATio? |
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Notes |
Sets the ratio of PDSCH EPRE to CRS EPRE (rho_B/rho_A). |
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Preset |
PBPa1 |
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State Saved |
Yes |
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Initial S/W Revision |
A.20.01 |