Open topic with navigation

UCI—General Settings

The Physical Uplink Control Channel (PUCCH) carries the uplink control information (UCI). The data type and data choices depend on the selected PUCCH format in accordance with 3GPP TS 36.211. Two PUCCH format settings are available, one for non-SRS subframes, one for the cell specific Sounding Reference Signal (SRS) subframes.

The setting for this window cannot be changed while transmitting the signal (State On button clicked). To change settings, first click the State Off button to stop the signal.

The software does not use these settings when it is controlling multiple instruments as shown in the tree view.

1. Non-SRS Subframe

2. SRS Subframe

Format

Format

Data Type

Data Type

1-Bit HARQ-ACK Data

1-Bit HARQ-ACK Data

2-Bit HARQ-ACK Data

2-Bit HARQ-ACK Data

CQI Data

 

CQI Data Length

 

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?

Click this button to launch the Subframe Setting Tool Closeddialog box. Then use the dialog box to set the states of the subframes shown in the Subframe Status tab. To set the subframe states using the tool:

  1. Click the drop-down arrow shown in the ClosedSubframe Controls field.

    The ability of the State On by HARQ Process Number selection to turn on subframes is dependent on the Uplink Downlink Configuration value.

  2. Make the subframe state selection.

  3. If the Closedcheck boxes below the Subframe Controls field become active after making a selection such as with State On by Subframe Number, click (check) the needed boxes to finish configuring the subframe states.

  4. Click Set to implement the settings.

Alternatively set or modify each subframe state manually from within the Subframe Status tab by clicking on a subframe and use the drop-down arrow to select a different state.

1. Non-SRS Subframe

Format

Choices

 

 

Normal CP

Format 1

Format 2

 

Format 1a

Format 2a

 

Format 1b

Format 2b

 

 

 

Extended CP

Format 1

Format 2

 

Format 1a

 

 

Format 1b

 

Default: Format 1

Double-click or use the drop-down menu to select the PUCCH format.

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:PUCCh:FORMat F1|F1A|F1B|F2|F2A|F2B

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:PUCCh:FORMat?

Data Type

Choice: SR | 1-bit HARQ-ACK | 2-bit HARQ-ACK | CQI | CQI + 1-bit HARQ-ACK | CQI + 2-bit HARQ-ACK

Default: SR

Coupling: Active with extended Cyclic Prefix and Format 2. otherwise display only based on Format selection.

The PUCCH data type is determined by the selected format as shown in the table below. When Format 2 is used with the extended Cyclic Prefix, the PUCCH data type is selectable.

When the data type is CQI or is an element of the data type, you can use the CQI Data parameter to set the CQI data.

Format

Data Type

Data Choices

Modulation

Number of Mbits

per subframe

Format 1

SR ( Scheduling Request)

N/A

N/A

N/A

Format 1a

1- Bit HARQ-ACK

ACK | NACK

BPSK

1

Format 1b

2-Bit HARQ-ACK

ACK ACK | ACK NACK | NACK ACK | NACK NACK

QPSK

2

Format 2

Normal CP: CQI;

CQI Data

QPSK

20

Extended CP:

CQI

CQI +1-Bit HARQ-ACK

CQI+ 2-Bit HARQ-ACK

 

CQI Data

CQI Data + ACK | NACK

CQI Data + ACK ACK | ACK NACK | NACK ACK | NACK NACK

QPSK

20

Format 2a*

CQI + 1-Bit HARQ-ACK

CQI Data + ACK | NACK

QPSK+BPSK

21

Format 2b*

CQI + 2- Bit HARQ-ACK

CQI Data + ACK ACK | ACK NACK | NACK ACK | NACK NACK

QPSK+BPSK

22

* normal cyclic prefix only

Use the command when the Cyclic Prefix is set to Extended and the Format is set to 2. For any other Cyclic Prefix and Format setting, only the query is available.

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:PUCCh:DATA:TYPE CQI|CQI_ACK1B|CQI_ACK2B

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:PUCCh:DATA:TYPE?

1-Bit HARQ-ACK Data

Choices: ACK | NACK

Default: ACK

Coupling: Active when the Data Type parameter includes 1-Bit HARQ-ACK

Double-click or use the drop-down menu to select the 1-bit HARQ-ACK data.

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:PUCCh:HARQ:OBIT:DATA ACK|NACK

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:PUCCh:HARQ:OBIT:DATA?

2-Bit HARQ-ACK Data

Choices: ACK ACK | ACK NACK | NACK ACK | NACK NACK

Default: ACK ACK

Coupling: Active when the Data Type parameter includes 2-Bit HARQ-ACK

Double-click or use the drop-down menu to select the 2-bit HARQ-ACK data.

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:PUCCh:HARQ:TBIT:DATA ACK_ACK|ACK_NACK|NACK_ACK|NACK_NACK

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:PUCCh:HARQ:TBIT:DATA?

CQI Data

Choices: PN9 | PN15 | User

Default: PN9

Coupling: Active when CQI is or part of the displayed Data Type— Format selections of 2, 2a, or 2b

Use the Data Source Selection dialog box to select the CQI data.

PN9

Uses PN9 sequence as data bits

PN15

Uses PN15 sequence as data bits

User

Uses a user-defined sequence up to 13-bits, represented by binary data.

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:PUCCh:CQI:DATA:TYPE PN9|PN15|USER

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:PUCCh:CQI:DATA:TYPE?

If USER is the data type, use the following command to set the string patttern. To set the pattern, use "0", "1", or a combination of the two "011100" up to the number set in the CQI Data Length parameter.

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:PUCCh:CQI:DATA:USER "<pattern>"

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:PUCCh:CQI:DATA:USER?

CQI Data Length

Range: 1 to 13

Default: 4

Coupling: Active when CQI is or part of the displayed Data Type— Format selections of 2, 2a, or 2b

Enter the data length of PUCCH CQI data.

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:PUCCh:CQI:DATA:LENGth <val>

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:PUCCh:CQI:DATA:LENGth?

2. SRS Subframe

Sounding reference signals (SRS) subframe can be configured for a specific cell in the base station.

Format

Choice: Format 1 | Format 1a | Format 1b

Default: Format 1

Double-click or use the drop-down menu to select the PUCCH format for the cell specific SRS subframe.

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:PUCCh:SRSSubframe:FORMat F1|F1A|F1B

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:PUCCh:SRSSubframe:FORMat?

Data Type

Choices: SR (Scheduling Request) | 1-bit HARQ_ACK | 2- bit HARQ-ACK

Default: SR

Displays the PUCCH data type for the cell specific SRS subframe.The data type is determined by the PUCCH format selected for the Cell Specific SRS subframe.

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:PUCCh:SRSSubframe:DATA:TYPE?

1-Bit HARQ-ACK Data

Choices: ACK | NACK

Default: ACK

Coupling: Active with the Cell specific SRS Subframe Format 1a selection.

Double-click or use the drop-down menu to select the 1-bit HARQ-ACK data for the cell specific SRS subframe.

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:PUCCh:SRSSubframe:HARQ:OBIT:DATA ACK|NACK

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:PUCCh:SRSSubframe:HARQ:OBIT:DATA?

2-Bit HARQ-ACK Data

Choices: ACK ACK | ACK NACK | NACK ACK | NACK NACK

Default: ACK-NACK

Coupling: Active with the Cell specific SRS Subframe Format 1b selection.

Double-click or use the drop-down menu to select the 2-bit HARQ-ACK data for the cell specific SRS subframe.

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:PUCCh:SRSSubframe:HARQ:TBIT:DATA ACK_ACK|ACK_NACK|NACK_ACK|NACK_NACK

[:SOURce]:RADio:LTE:TDD[:BBG]:ULINk:PUCCh:SRSSubframe:HARQ:TBIT:DATA?