LTE FDD

CSI-RS (Downlink E-UTRA)

For Waveform Playback (ARB) capability.

This topic describes the settings of the CSI-RS node when the carrier is Downlink E-UTRA.

Turns the CSI reference signal on or off.

SCPI Command	[:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:CSIRs:STATe OFF\|ON\|0\|1 [:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:CSIRs:STATe?
SCPI Example	RADio:LTEFdd:WAVeform:CCARrier:DLINk:CSIRs:STATe OFF RADio:LTEFdd:WAVeform:CCARrier:DLINk:CSIRs:STATe?
Choices	OFF\|ON
Preset	0
State Saved	Yes
Initial S/W Revision	A.20.01

Sets the power level, in dB for the CSI reference signal.

SCPI Command	[:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:CSIRs:POWer <rel_ampl> [:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:CSIRs:POWer?
SCPI Example	RADio:LTEFdd:WAVeform:CCARrier:DLINk:CSIRs:POWer 0.0 RADio:LTEFdd:WAVeform:CCARrier:DLINk:CSIRs:POWer?
Range	-60 dB to 20 dB
Preset	0
State Saved	Yes
Min	-60
Max	20
Initial S/W Revision	A.20.01

Selects the number of CSI-RS antenna ports.

SCPI Command	[:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:CSIRs:APORts:COUNt P1\|P2\|P4\|P8 [:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:CSIRs:APORts:COUNt?
SCPI Example	RADio:LTEFdd:WAVeform:CCARrier:DLINk:CSIRs:APORts:COUNt P1 RADio:LTEFdd:WAVeform:CCARrier:DLINk:CSIRs:APORts:COUNt?
Choices	P1 \| P2 \| P4 \| P8. Must be <= Total Number of Antennas
Dependencies	Automatically set by software when Total Number of Antennas changes. Must be <= Total Number of Antennas.
Preset	P1
State Saved	Yes
Initial S/W Revision	A.20.01

Query only

Displays the CSI-RS antenna port(s). Value is set by software based on Number of CSI-RS Antenna Ports.

SCPI Command	[:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:CSIRs:APORt?
SCPI Example	RADio:LTEFdd:WAVeform:CCARrier:DLINk:CSIRs:APORt?
Notes	Read-only. Choices: Port 15 \| Ports 15 to 16 \| Ports 15 to 18 Formula: ((Antenna Port) mod (Number of CSI-RS Antenna Ports)) + 15.
Couplings	Automatically set by Number of CSI-RS Antenna Ports.
Preset	P15
State Saved	No
Initial S/W Revision	A.20.01

Sets the CSI-RS configuration index. Defines the resource element mapping.

SCPI Command	[:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:CSIRs:CONFig <integer> [:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:CSIRs:CONFig?
SCPI Example	RADio:LTEFdd:WAVeform:CCARrier:DLINk:CSIRs:CONFig 0 RADio:LTEFdd:WAVeform:CCARrier:DLINk:CSIRs:CONFig?
Range	0 to 19 (Normal CP, 1 or 2 ports) 0 to 15 (Extended CP, 1 or 2 ports) 0 to 9 (Normal CP, 4 ports) 0 to 7 (Extended CP, 4 ports) See 3GPP TS 36.211 and 36.213.
Couplings	Range coupled to Number of CSI-RS Antenna Ports and Cyclic Prefix.
Preset	0
State Saved	Yes
Min	0
Max	19
Initial S/W Revision	A.20.01

Sets the CSI-RS subframe configuration index. Defines both the periodicity and subframe offset.

SCPI Command	[:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:CSIRs:SFConfig <integer> [:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:CSIRs:SFConfig?
SCPI Example	RADio:LTEFdd:WAVeform:CCARrier:DLINk:CSIRs:SFConfig 0 RADio:LTEFdd:WAVeform:CCARrier:DLINk:CSIRs:SFConfig?
Range	0 to 154 Formula: I_CSI-RS=0-4: T=5, Delta=I I_CSI-RS=5-14: T=10, Delta=I-5 I_CSI-RS=15-34: T=20, Delta=I-15 I_CSI-RS=35-74: T=40, Delta=I-35 I_CSI-RS=75-154: T=80, Delta=I-75
Couplings	Sets CSI-RS Periodicity (T_CSI-RS) and CSI-RS Subframe Offset (Delta_CSI-RS) automatically.
Preset	0
State Saved	Yes
Min	0
Max	154
Initial S/W Revision	A.20.01

Query only

Displays the CSI-RS periodicity in subframes. Value is automatically set by software based on I_CSI-RS.

SCPI Command	[:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:CSIRs:PERiodicity?
SCPI Example	RADio:LTEFdd:WAVeform:CCARrier:DLINk:CSIRs:PERiodicity?
Notes	Read-only Values: 5 \| 10 \| 20 \| 40 \| 80 subframes. Formula: I_CSI-RS=0-4: T=5 I_CSI-RS=5-14: T=10 I_CSI-RS=15-34: T=20 I_CSI-RS=35-74: T=40 I_CSI-RS=75-154: T=80
Couplings	The value is automatically set by CSI-RS Subframe Configuration (I_CSI-RS).
Preset	5
State Saved	No
Min	5
Max	80
Initial S/W Revision	A.20.01

Query only

Displays the CSI-RS subframe offset. The value is automatically set by software based on I_CSI-RS.

SCPI Command	[:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:CSIRs:SFOFfset?
SCPI Example	RADio:LTEFdd:WAVeform:CCARrier:DLINk:CSIRs:SFOFfset?
Notes	Read-only Range: 0 to 79 subframes. Formula: I_CSI-RS=0-4: Delta=I I_CSI-RS=5-14: Delta=I-5 I_CSI-RS=15-34: Delta=I-15 I_CSI-RS=35-74: Delta=I-35 I_CSI-RS=75-154: Delta=I-75
Dependencies	The value is automatically set by CSI-RS Subframe Configuration (I_CSI-RS).
Preset	0
State Saved	No
Min	0
Max	79
Initial S/W Revision	A.20.01