LTE TDD

Resource Block Downlink (Basic TDD)

For Waveform Playback (ARB) capability.

This topic describes the settings of the Downlink > Resource Block node for a Basic TDD carrier.

Resource Block Collection Number

State

Power

Modulation Type

Slot Number

Resource Blocks

Data

Data User Defined

RBC Higher Layer Data

Configure DL Resource Block Collection

Delete DL Resource Block Collection

Resource Block Collection Number

Query only

Displays the identifying number of the currently selected resource block collection. Numbers are assigned based on position in the list and updated automatically when collections are added or deleted.

SCPI Command

[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:RBC<n>:NUMBer?

SCPI Example

RADio:LTETdd:WAVeform:CCARrier:DL:RBC:NUMBer?

Notes

Read only. Auto-assigned by position in list.

Preset

1

State Saved

No

Initial S/W Revision

A.20.01

State

Enables or disables the selected resource block collection. When controlled by a higher layer, this setting is read-only.

SCPI Command

[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:RBCollection<n>[:STATe] OFF|ON|1|0d

[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:RBCollection<n>:STATe?

SCPI Example

RADio:LTETdd:WAVeform:CCARrier:DL:RBC:STAT ON

RADio:LTETdd:WAVeform:CCARrier:DL:RBC:STAT?

Notes

Read-only when controlled by a higher layer.

Preset

On

State Saved

Yes

Initial S/W Revision

A.20.01

Power

Sets the power level for the selected resource block collection.

SCPI Command

[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:RBCollection<n>:POWer <real>

[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:RBCollection<n>:POWer?

SCPI Example

RADio:LTETdd:WAVeform:CCARrier:DL:RBC:POW 0.000

RADio:LTETdd:WAVeform:CCARrier:DL:RBC:POW?

Preset

0.000

State Saved

Yes

Min

-60.000

Max

20.000

Initial S/W Revision

A.20.01

Modulation Type

Sets the modulation type for the resource block collection.

When controlled by a higher layer, this setting is read-only.

SCPI Command

[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:RBCollection<n>:MODulation QPSK|QAM16|QAM64|QAM256

[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:RBCollection<n>:MODulation?

SCPI Example

RADio:LTETdd:WAVeform:CCARrier:DL:RBC:MOD QPSK

RADio:LTETdd:WAVeform:CCARrier:DL:RBC:MOD?

Notes

Read-only when controlled by a higher layer.

Setting values use QAM prefix (QAM16, QAM64, QAM256) as SCPI identifiers cannot begin with a digit.

Preset

QPSK

State Saved

Yes

Initial S/W Revision

A.20.01

Slot Number

Assigns the selected resource block collection to a specific slot in the frame. The combination of Slot Number and Resource Blocks defines a resource block collection.

When controlled by a higher layer, this setting is read-only.

SCPI Command

[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:RBCollection<n>:SLOT <integer>

[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:RBCollection<n>:SLOT?

SCPI Example

RADio:LTETdd:WAVeform:CCARrier:DL:RBC:SLOT 0

RADio:LTETdd:WAVeform:CCARrier:DL:RBC:SLOT?

Notes

Read-only when controlled by a higher layer.

Valid range: 0 to 19 (20 slots per 10 ms LTE frame).

Preset

0

State Saved

Yes

Min

0

Max

19

Initial S/W Revision

A.20.01

Resource Blocks

Assigns specific resource blocks in the frequency domain to the resource block collection. Enter one or more numbers (separated by commas) or a range (for example, 1-10).

Resource blocks in a collection must be in the same slot but do not have to be contiguous. The available count is determined by System Bandwidth.

When controlled by a higher layer, this setting is read-only.

SCPI Command

[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:RBC<n>:PRB?

SCPI Example

RADio:LTETdd:WAVeform:CCARrier:DL:RBC:PRB?

Notes

Read-only when controlled by a higher layer.

Dependencies

Determined by System Bandwidth.

Preset

0-49

State Saved

Yes

Initial S/W Revision

A.20.01

Data

Sets the data source for the resource block collection payload.

PN9 and PN15 generate pseudo-random bit sequences.

When controlled by a higher layer, DATA? returns "Higher Layer" and cannot be set.

SCPI Command

[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:RBC<n>:DATA PN9|PN15|USER

[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:RBC<n>:DATA?

SCPI Example

RADio:LTETdd:WAVeform:CCARrier:DL:RBC:DATA PN9

RADio:LTETdd:WAVeform:CCARrier:DL:RBC:DATA?

Notes

This command is applicable for standalone RB Collections.

Preset

PN9

State Saved

Yes

Initial S/W Revision

A.20.01

Data User Defined

Sets the user-defined bit string used as the resource block collection payload. Specify as a binary string in double quotes.

SCPI Command

[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:RBC<n>:DATA:USER "<bitstring>"

[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:RBC<n>:DATA:USER?

SCPI Example

RADio:LTETdd:WAVeform:CCARrier:DL:RBC:DATA:USER "00000000"

RADio:LTETdd:WAVeform:CCARrier:DL:RBC:DATA:USER?

Preset

"00000000"

State Saved

Yes

Initial S/W Revision

A.20.01

RBC Higher Layer Data

Query only

Displays the data source of a higher-layer-controlled DL Resource Block Collection. Returns:

SCPI Command

[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DL:RBC<n>:HLAYer:DATA?

SCPI Example

RADio:LTETdd:WAVeform:CCARrier1:DL:RBC:HLAYer:DATA?

Dependencies

Read-only. Meaningful only when the RBC is higher-layer-controlled.

Preset

N/A

State Saved

No

Initial S/W Revision

A.20.01

Configure DL Resource Block Collection

Adds the Resource block collection.

SCPI Command

[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:CONFig:RBC

SCPI Example

RADio:LTETdd:WAVeform:CCARrier1:DLINk:CONFig:RBC

Notes

Appends a DL Resource Block Collection (default 1 RB, PN9 data).

Preset

N/A

State Saved

No

Initial S/W Revision

A.20.01

Delete DL Resource Block Collection

Deletes the specified Standalone RB Collection.

SCPI Command

[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:RBCOllection:DELete <integer>

SCPI Example

RADio:LTETdd:WAVeform:CCARrier1:DLINk:RBCOllection:DELete 1

Dependencies

None

Preset

N/A

State Saved

No

Initial S/W Revision

A.20.01

Carrier Downlink (Basic TDD)

Welcome to LTE TDD