LTE FDD Uplink

These settings control the real-time baseband and LTE functionality. (See overview.)

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
	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
	Pre-Clocking Number for PRBS

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:FDD[:BBG]:ULINk:APPLy

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

See the Channels topic.

1. General

Baseband Filter

Choice: On | Off

Default: On

Set the status of the LTE UL baseband filter after the IFFT process of OFDM symbol generation.

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

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

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

RNTI

Range: 0 to 65535

Default: 1

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

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

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

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

[:SOURce]:RADio:LTE:FDD[: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 total number of resource blocks and the total number of occupied subcarriers.

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

[:SOURce]:RADio:LTE:FDD[: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 the resource block based on the cyclic prefix selection.

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

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

Group/Sequence Hopping

Choice: Off | Group Hopping | Sequence Hopping

Default: Off

Double-click or use the drop-down menu to select the hopping type. This parameter is used when the Parameter Calculation mode is set to Auto.

Group hopping is composed of a group hopping pattern and a sequence-shift pattern. There are 17 different hopping patterns and 30 different sequence-shift patterns. Sequence hopping , hopping between the two sequences within a sequence group, can be applied for resource allocation larger than 5 RBs. See 3GPP TS 36.211 for more information on hopping types.

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

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

Miscellaneous Cell Parameters

Total Number of Resource Blocks

Displays the total number of resource blocks within the specified system bandwidth.

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

Total Number of Occupied Subcarriers

Displays the total number of subcarriers within the specified system bandwidth.

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

Number of Subcarriers for Resource Block

Displays the number of consecutive subcarriers in an uplink resource block. This value is set at 12.

[:SOURce]:RADio:LTE:FDD[:BBG]:ULINk:RBLock:NSCarriers?

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:FDD[:BBG]:ULINk:NSSymbol?

Pre-Clocking Number for PRBS

Displays the pre-clocking number for the pseudorandom binary sequence PRBS. This value is fixed at 1600.

[:SOURce]:RADio:LTE:FDD[:BBG]:ULINk:PCNPrbs?