LTE FDD

Synchronization Signals Downlink (NB-IoT)

For Waveform Playback (ARB) capability.

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

Narrowband Primary Synch Signal State

Narrowband Primary Sync Signal Power

Narrowband Secondary Synch Signal State

Narrowband Secondary Synch Signal Power

NPSS/NSSS Transmit Antenna Port

Narrowband Primary Synch Signal State

The software sets the state of the narrowband primary synchronization signal (NPSS) to on or off. NPSS power can be controlled by Narrowband Primary Synch Signal Power.

SCPI Command

[SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<channel>:NIOT:DLINk:NPSS:STATe ON|OFF|1|0

[SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<channel>:NIOT:DLINk:NPSS:STATe?

SCPI Example

RADio:LTEFdd:WAVeform:CCARrier:NIOT:DLINk:NPSS:STATe ON

RADio:LTEFdd:WAVeform:CCARrier:NIOT:DLINk:NPSS:STATe?

Couplings

 

Preset

ON

State Saved

Yes

Initial S/W Revision

A.19.00

Narrowband Primary Sync Signal Power

Set the power level, in dB for the primary synchronization signal, relative to the average subcarrier power.

SCPI Command

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

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

SCPI Example

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

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

Couplings

 

Preset

0

State Saved

Yes

Min

-60

Max

20

Initial S/W Revision

A.09.00

Narrowband Secondary Synch Signal State

The software sets the state of the narrowband secondary synchronization signal (NSSS) to on or off. NSSS power can be controlled by Narrowband Primary Synch Signal Power.

SCPI Command

[SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<channel>:NIOT:DLINk:NSSS:STATe ON|OFF|1|0

[SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<channel>:NIOT:DLINk:NSSS:STATe?

SCPI Example

RADio:LTEFdd:WAVeform:CCARrier:NIOT:DLINk:NSSS:STATe ON

RADio:LTEFdd:WAVeform:CCARrier:NIOT:DLINk:NSSS:STATe?

Couplings

 

Preset

ON

State Saved

Yes

Initial S/W Revision

A.19.00

Narrowband Secondary Synch Signal Power

Enter the power level, in dB for the secondary synchronization signal, relative to the average subcarrier power.

SCPI Command

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

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

SCPI Example

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

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

Couplings

 

Preset

0

State Saved

Yes

Min

-60

Max

20

Initial S/W Revision

A.19.00

NPSS/NSSS Transmit Antenna Port

Set the NPSS/NSSS transmit antenna ports.

This setting specifies the antenna port(s) that NPSS and NSSS are transmitted on.

SCPI Command

[SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<channel>:NIOT:DLINk:NSSS:ANTenna:PORT P2000|P2001|ALLPort

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

SCPI Example

RADio:LTEFdd:WAVeform:CCARrier:NIOT:DLINk:NSSS:ANTenna:PORT P2000

RADio:LTEFdd:WAVeform:CCARrier:NIOT:DLINk:NSSS:ANTenna:PORT?

Couplings

 

Preset

P2000

State Saved

Yes

Initial S/W Revision

A.19.00

Carrier Downlink ARB

Welcome to LTE FDD