LTE FDD

Reference Signals Downlink (NB-IoT)

For Waveform Playback (ARB) capability.

This topic describes the settings of the Reference Signals node when the carrier is Downlink NB-IoT.

Narrowband Reference Signal Power

Number of NRS Antennas Ports

NRS Antenna Mapping Configuration

NRS0 Antenna Mapping

NRS1 Antenna Mapping

Narrowband Reference Signal Power

Set the power level, in dB for the Narrowband Reference Signal (NRS).

SCPI Command

[SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<channel>:NIOT:DLINk:RSIGnal:POWer <real>

[SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<channel>:NIOT:DLINk:RSIGnal:POWer?

SCPI Example

RADio:LTEFdd:WAVeform:CCARrier:NIOT:DLINk:RSIGnal:POWer 0

RADio:LTEFdd:WAVeform:CCARrier:NIOT:DLINk:RSIGnal:POWer?

Couplings

 

Preset

0

State Saved

Yes

Min

-60

Max

20

Initial S/W Revision

A.19.00

Number of NRS Antennas Ports

Displays Number of Narrowband Reference Signals (NRS) Antenna Ports which is the same as Total Number of Antennas.

SCPI Command

[SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<channel>:NIOT:DLINk:NRS:ANTenna:COUNt?

SCPI Example

RADio:LTEFdd:WAVeform:CCARrier:NIOT:DLINk:NRS:ANTenna:COUNt?

Couplings

 

Preset

P1

State Saved

Yes

Initial S/W Revision

A.19.00

NRS Antenna Mapping Configuration

Displays NRS Antenna Mapping Configuration. Auto means NRS ports 2000-2001 to physical antennas are automatically assigned by the software.

SCPI Command

[SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<channel>:NIOT:DLINk:NRS:ANTenna:MAPPing:CONFig?

SCPI Example

RADio:LTEFdd:WAVeform:CCARrier:NIOT:DLINk:NRS:ANTenna:MAPPing:CONFig?

Couplings

 

Preset

AUTO

State Saved

Yes

Initial S/W Revision

A.19.00

NRS0 Antenna Mapping

Displays NRS0 Antenna Mapping.

0 and 1 mean off and on respectively. Comma separated sequence order indicates physical antenna port numbers.

SCPI Command

[SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<channel>:NIOT:DLINk:NRS0:ANTenna:MAPPing?

SCPI Example

RADio:LTEFdd:WAVeform:CCARrier:NIOT:DLINk:NRS0:ANTenna:MAPPing?

Couplings

 

Preset

1

State Saved

Yes

Initial S/W Revision

A.19.00

NRS1 Antenna Mapping

Displays NRS1 Antenna Mapping.

0 and 1 mean off and on respectively. Comma separated sequence order indicates physical antenna port numbers.

SCPI Command

[SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<channel>:NIOT:DLINk:NRS1:ANTenna:MAPPing?

SCPI Example

RADio:LTEFdd:WAVeform:CCARrier:NIOT:DLINk:NRS1:ANTenna:MAPPing?

Couplings

 

Preset

0,1

State Saved

Yes

Initial S/W Revision

A.19.00

Carrier Downlink ARB

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