RFmxLTE ModAcc Fetch NPUSCH Constellation Trace VI
- Updated2025-04-08
- 3 minute(s) read
Returns the recovered narrowband physical uplink shared channel (NPUSCH) constellation points. The constellation points of different slots in the measurement length are concatenated.
Use "carrier<k>" or "subblock<n>/carrier<k>" as the selector string to read results from this VI.

Inputs/Outputs
![]() Selector String specifies a selector string comprising of the signal name, result name, subblock number, and carrier number. If you do not specify the signal name, the default signal instance is used. If you do not specify the result name, the default result instance is used. The default value is "subblock0/carrier0". Example: "subblock0/carrier0" "signal::sig1/subblock0/carrier0" "result::r1/subblock0/carrier0" "signal::sig1/result::r1/subblock0/carrier0" You can use the RFmxLTE Build Carrier String VI to build the selector string. ![]() Instrument Handle In specifies the RFmx session refnum. Instrument Handle In is obtained from the RFmxInstr Initialize NIRFSA VI. ![]() Timeout specifies the timeout for fetching the specified measurement. This value is expressed in seconds. Set this value to an appropriate time, longer than expected for fetching the measurement. A value of -1 specifies that the VI waits until the measurement is complete. The default value is 10. ![]() error in describes error conditions that occur before this node runs. This input provides standard error in functionality. ![]() Instrument Handle Out passes a reference to your RFmx session to the next VI. ![]() Data Constellation returns the data constellation trace. ![]() DMRS Constellation returns the demodulation reference signal (DMRS) constellation trace. ![]() error out contains error information. This output provides standard error out functionality. |