LTE TDD Uplink

These settings control the real-time baseband and LTE functionality.

When using multiple instruments as shown in the tree view, inaccurate test data may occur if a combination of the GUI and SCPI is used to set or modify the instrument and test parameters. The software will not reflect changes made outside of the GUI even with the use of the Update from Instrument button. For all tests, use only one method to configure the settings, GUI or SCPI.

When configuring multiple instruments with SCPI instead of using the GUI, the commands must be executed for each instrument.

When using multiple instruments as shown in the tree view, after clicking the State On button, all settings for this window gray out and cannot be changed. To change the settings, first click the State Off button.

1. General	2. Cell Parameters
Baseband Filter	Cell ID
	RNTI
	Antenna Port Number
	Total Number of Antennas
	System Bandwidth
	Cyclic Prefix
	Uplink Downlink Configuration
	Allocation Configuration
	Switch-point Periodicity
	Special Subframe Configuration
	UpPTS Symbol Length
	Group/Sequence Hopping
	Miscellaneous Cell Parameters
	Total number of Resource Blocks
	Total number of Occupied Subcarriers
	Number of Subcarriers for Resource Block
	Number of OFDM Symbols for Resource Block

Buttons

This button indicates that the current real-time settings have been applied to the instrument—no action is required. This button is not available when the Apply Needed button is active. When using multiple instruments as shown in the tree view, this button is not displayed.

This button displays in place of the Settings Current button. It indicates that the instrument settings are not currrent and need to be updated with the new software settings. Click this button to update the insturment's settings. This button shows in all windows regardless of where the change was made. When using multiple instruments as shown in the tree view, this button is not displayed.

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:APPLy

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:APPLy?

See the Channels topic.

1. General

Baseband Filter

Choice: Off | On

Default: On

Double-click or use the drop-down menu to set the Baseband Filter on or off.

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINK:BFILter 1|0|ON|OFF

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINK:BFILter?

2. Cell Parameters

Cell ID

Range: 0 to 503

Default: 0

Enter a value for the Cell ID.

Cell ID = Physical Layer Cell ID Group *3 + Physical Layer Cell ID Sector

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:CID <val>

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:CID?

RNTI

Range: 0- 65535

Default: 1

Enter a value for the Radio Network Temporary Identifier (RNTI). See 3GPP TS 36.211.

[:SOURce]:RADio[n]:LTE:TDD[:BBG]:ULINk:RNTI <val>

[:SOURce]:RADio[n]:LTE:TDD[:BBG]:ULINk:RNTI?

Antenna Port Number

Choices: 0 | 1

Default: 0

Couplings:

When using one instrument, this setting is active when the Total Number of Antennas is greater than 1.
A change to the port number may change the PUSCH nDMRS(2) value.

Set the antenna port number.

When using two instruments as shown in the tree view, this parameter is grayed out and displays both ports (0 / 1) as being used:

0 = master instrument
1 = slave instrument

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:ANTenna:PORT <port>

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:ANTenna:PORT?

Total Number of Antennas

Choices: 1 | 2

Default: 1

Set the number of antennas. When using two instruments, this parameter is grayed out and displays 2.

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:ANTenna:TNUMber <val>

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:ANTenna:TNUMber?

System Bandwidth

Default: 5 MHz (25RB)

Double-click or use the drop-down menu to set the system bandwidth. When you select a system bandwidth, the software automatically adjusts the value in the Total number of Resource Blocks cell and the Total number of Occupied Sub-carriers cell.

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:SBANdwidth F1_4M|F3M|F5M|F10M|F15M|F20M

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:SBANdwidth?

Cyclic Prefix

Choice: Normal | Extended

Default: Normal

Double-click or use the drop-down menu to select a Normal or Extended cyclic prefix. The software sets the Number of Symbols for Resource Block based on the cyclic prefix selection.

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:CPRefix NORMal|EXTended

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:CPRefix?

Uplink Downlink Configuration

Choice: 0 | 1 | 2 | 3 | 4 | 5 | 6

Default: 0

Double-click or use the drop-down menu to select an Uplink Downlink Configuration. The software sets the Allocation Configuration and the Switch-point Periodicity based on the Uplink Downlink Configuration selection. For more information, refer to TS 36.211.

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:ULDLconfig <val>

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:ULDLconfig?

Allocation Configuration

Displays the Uplink and Downlink allocation configuration calculated by the selected Uplink Downlink Configuration. For more information, refer to TS 36.211.

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:ACONfig?

Switch-point Periodicity

Displays the Uplink and Downlink switch-points which are calculated by Uplink Downlink Configuration. For more information, refer to TS 36.211.

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:SWPPeriod?

Special Subframe Configuration

Choices: 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8

Default: 0

Choices:
Normal CP	0 \| 1 \| 2 \| 3 \| 4 \| 5 \| 6 \| 7 \| 8

Extended CP	0 \| 1 \| 2 \| 3 \| 4 \| 5 \| 6

Default: 0

Double-click or use the drop-down menu to select to select the configuration. This value is used for the sounding reference signal data allocation.

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:SSConfig <val>

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:SSConfig?

UpPTS Symbol Length

Displays the UpPTS symbol length.

Group/Sequence Hopping Type

Choice: Off | Group Hopping | Sequence Hopping

Default: Off

Double-click or use the drop-down menu to select the hopping type. See 3GPP TS36.211 for information on the hopping types.

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:HOPPing:TYPE OFF|GROup|SEQuence

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:HOPPing:TYPE?

Miscellaneous Cell Parameters

Total number of Resource Blocks

Displays the total number of Resource Blocks within the specified system bandwidth. The value in this cell is set by the software based on the System Bandwidth setting. For more information, refer to TS 36.101.

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:NRBLock?

Total number of Occupied Subcarriers

Displays the total number of subcarriers within the specified system bandwidth. The value in this cell is set by the software based on the system bandwidth setting. This parameter is read only.

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:NSCarrier?

Number of Subcarriers for Resource Block

Displays the number of consecutive subcarriers in an uplink resource block. For current version, this value is always 12.

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:RBLock:NSCarrier?

Number of OFDM Symbols for Resource Block

Displays the number of consecutive symbols in an uplink resource block. 7 for a Normal Cyclic Prefix; 6 for an Extended Cyclic Prefix.

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:NSSymbol?