RFmx LTE VIs

Table of Contents

RFmxLTE ModAcc Configure Synchronization Mode and Interval (VI)

  • Updated2024-04-10
  • 3 minute(s) read

RFmxLTE ModAcc Configure Synchronization Mode and Interval (VI)

Owning Palette: ModAcc

Configures the Synchronization Mode, the Measurement Offset, and the Measurement Length parameters of the ModAcc measurement.

Refer to the LTE Modulation Accuracy (ModAcc) topic for more information about ModAcc measurements.

RFmxLTE ModAcc Configure Synchronization Mode and Interval

cio.gif

Instrument Handle In specifies the RFmx session refnum. Instrument Handle In is obtained from the RFmxInstr Initialize NIRFSA VI.

ci32.gif

Synchronization Mode specifies whether the measurement is performed from the frame or the slot boundary. The default value is Slot.

When you set the Link Direction property to Downlink, the measurement supports only Frame synchronization mode.

Frame  (0)

The frame boundary is detected, and the measurement is performed over the Measurement Length parameter, starting at the Measurement Offset parameter from the frame boundary. When you set the Trigger Type property to Digital Edge, the measurement expects a trigger at the frame boundary.

Slot (1)

The slot boundary is detected, and the measurement is performed over the Measurement Length parameter starting at the Measurement Offset parameter from the slot boundary. When you set the Trigger Type property to Digital Edge, the measurement expects a trigger at any slot boundary.

Marker (2)

The measurement expects a marker (trigger) at the frame boundary from the user. The measurement takes advantage of triggered acquisitions to reduce processing resulting in faster measurement time. Measurement is performed over the Measurement Length parameter starting at the Measurement Offset parameter from the frame boundary.

ci32.gif

Measurement Offset specifies the measurement offset, in slots, to skip from the synchronization boundary. The synchronization boundary is specified by the Synchronization Mode parameter. The default value is 0. Valid values are 0 to 19, inclusive.

ci32.gif

Measurement Length specifies the number of slots to be measured. The default value is 1.

cstr.gif

Selector String specifies a selector string comprising of the signal name. If you do not specify the signal name, the default signal instance is used. The default is "" (empty string).

Example:

"signal::sig1"

You can use the RFmxLTE Build Signal String VI to build the selector string.

cerrcodeclst.gif

error in describes error conditions that occur before this node runs. This input provides standard error in functionality.

iio.gif

Instrument Handle Out passes a reference to your RFmx session to the next VI.

ierrcodeclst.gif

error out contains error information. This output provides standard error out functionality.

Log in to get a better experience