LTE TDD
For Waveform Playback (ARB) capability.
This topic describes the settings of the Downlink > CSI-RS node for a Basic TDD carrier.
Number of CSI-RS Antenna Ports
Enables or disables CSI-RS generation.
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:CSIRs:STATe ON|OFF|1|0 [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:CSIRs:STATe? |
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SCPI Example |
RADio:LTETdd:WAVeform:CCARrier:DL:CSIRs:STATe ON RADio:LTETdd:WAVeform:CCARrier:DL:CSIRs:STATe? |
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Preset |
Off |
|
State Saved |
Yes |
|
Initial S/W Revision |
A.20.01 |
Sets the power level, in dB for the CSI reference signals.
See 3GPP TS 36.213.
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SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:CSIRs:POWer <integer> [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:CSIRs:POWer? |
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SCPI Example |
RADio:LTETdd:WAVeform:CCARrier:DL:CSIRs:POWer 0.000 RADio:LTETdd:WAVeform:CCARrier:DL:CSIRs:POWer? |
|
Preset |
0.000 dB |
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State Saved |
Yes |
|
Min |
-60.000 dB |
|
Max |
20.000 dB |
|
Initial S/W Revision |
A.20.01 |
Selects whether Number of CSI-RS Antenna Ports and CSI-RS Antenna Port are set automatically (Auto) or manually (Manual).
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:CSIRs:APORt:CONFig AUTO|MANual [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:CSIRs:APORt:CONFig? |
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SCPI Example |
RADio:LTETdd:WAVeform:CCARrier:DL:CSIRs:APORt:CONFig AUTO RADio:LTETdd:WAVeform:CCARrier:DL:CSIRs:APORt:CONFig? |
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Notes |
When Auto, Number of CSI-RS Antenna Ports and CSI-RS Antenna Port are read-only. |
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Dependencies |
Controls read/write state of Number of CSI-RS Antenna Ports and CSI-RS Antenna Port. |
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Preset |
AUT |
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State Saved |
Yes |
|
Initial S/W Revision |
A.20.01 |
Sets the number of antenna ports for CSI-RS transmission.
When Auto, set to the same value as Total Number of Antennas.
See 3GPP TS 36.211.
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:CSIRs:APORt:COUNt P1|P2|P4|P8 [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:CSIRs:APORt:COUNt? |
|
SCPI Example |
RADio:LTETdd:WAVeform:CCARrier:DL:CSIRs:APORt:COUNt P1 RADio:LTETdd:WAVeform:CCARrier:DL:CSIRs:APORt:COUNt? |
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Notes |
Read-only when CSI-RS Antenna Configuration is Auto. Must be equal to or less than Total Number of Antennas. |
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Dependencies |
Controlled by CSI-RS Antenna Configuration. Controls the available CSI-RS Antenna Port selections. Also affects the valid range of CSI-RS Configuration. |
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Preset |
P1 |
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State Saved |
Yes |
|
Initial S/W Revision |
A.20.01 |
Sets the virtual antenna port for CSI-RS transmission.
When Auto, set to Antenna Port mod Number of CSI-RS Antenna Ports, offset to the CSI-RS port range (15+).
See 3GPP TS 36.211.
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:CSIRs:APORt PORT15|PORT16|PORT17|PORT18|PORT19|PORT20|PORT21|PORT22 [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:CSIRs:APORt? |
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SCPI Example |
RADio:LTETdd:WAVeform:CCARrier:DL:CSIRs:APORt PORT15 RADio:LTETdd:WAVeform:CCARrier:DL:CSIRs:APORt? |
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Notes |
Read-only when CSI-RS Antenna Configuration is Auto. Auto value = (Antenna Port mod Number of CSI-RS Antenna Ports) + 15. |
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Dependencies |
Controlled by CSI-RS Antenna Configuration. Available port selections depend on Number of CSI-RS Antenna Ports. |
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Preset |
PORT15 |
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State Saved |
Yes |
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Initial S/W Revision |
A.20.01 |
Sets the CSI-RS configuration index defining the location of CSI-RS within a PRB.
See 3GPP TS 36.211 Table 6.10.5.2-1.
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:CSIRs:CONFig <integer> [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:CSIRs:CONFig? |
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SCPI Example |
RADio:LTETdd:WAVeform:CCARrier:DL:CSIRs:CONFig 0 RADio:LTETdd:WAVeform:CCARrier:DL:CSIRs:CONFig? |
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Range |
Valid range depends on Number of CSI-RS Antenna Ports and Cyclic Prefix. TDD Normal CP:
TDD Extended CP:
|
|
Dependencies |
Controls CSI-RS Periodicity and CSI-RS Subframe Offset. |
|
Preset |
0 |
|
State Saved |
Yes |
|
Min |
0 |
|
Max |
31 |
|
Initial S/W Revision |
A.20.01 |
Sets the CSI-RS subframe configuration index (I_CSI-RS, 0-74).
See 3GPP TS 36.211 Table 6.10.5.3-1.
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:CSIRs:SFConfig <integer> [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:CSIRs:SFConfig? |
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SCPI Example |
RADio:LTETdd:WAVeform:CCARrier:DL:CSIRs:SFConfig 0 RADio:LTETdd:WAVeform:CCARrier:DL:CSIRs:SFConfig? |
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Dependencies |
Controls CSI-RS Periodicity and CSI-RS Subframe Offset. |
|
Preset |
0 |
|
State Saved |
Yes |
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Min |
0 |
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Max |
74 |
|
Initial S/W Revision |
A.20.01 |
Query only
Displays the CSI-RS periodicity in subframes.
See 3GPP TS 36.211 Table 6.10.5.3-1.
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SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:CSIRs:PERiodicity? |
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SCPI Example |
RADio:LTETdd:WAVeform:CCARrier:DL:CSIRs:PERiodicity? |
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Dependencies |
Read-only. Derived from CSI-RS Subframe Configuration.
|
|
Preset |
5 |
|
State Saved |
Yes |
|
Min |
5 |
|
Max |
40 |
|
Initial S/W Revision |
A.20.01 |
Query only
Displays the CSI-RS subframe offset.
See 3GPP TS 36.211 Table 6.10.5.3-1.
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:CSIRs:SFOFf? |
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SCPI Example |
RADio:LTETdd:WAVeform:CCARrier:DL:CSIRs:SFOFf? |
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Dependencies |
Read-only. Derived from CSI-RS Subframe Configuration.
|
|
Preset |
0 |
|
State Saved |
Yes |
|
Initial S/W Revision |
A.20.01 |