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 function.

Syntax

int32 __stdcall RFmxLTE_ModAccFetchNPUSCHConstellationTrace(niRFmxInstrHandle instrumentHandle, char selectorString[], float64 timeout, NIComplexSingle dataConstellation[], int32 dataConstellationArraySize, int32 *dataConstellationActualArraySize, NIComplexSingle dmrsConstellation[], int32 dmrsConstellationArraySize, int32 *dmrsConstellationActualArraySize)

Parameters

NameDirectionTypeDescription
instrumentHandle[in]niRFmxInstrHandle

This parameter specifies the RFmx session refnum. Instrument Handle In is obtained from the RFmxInstr_Initialize function.

selectorString[in]char

This parameter 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 function to build the selector string.

timeout[in]float64

This parameter 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 function waits until the measurement is complete. The default value is 10.

dataConstellation[out]NIComplexSingle

This parameter returns the data constellation trace.

dataConstellationArraySize[in]int32

Specifies the size of the DataConstellation array. Set the DataConstellationArraySize parameter to 0 to get the size of the DataConstellation array in the DataConstellationActualArraySize parameter.

dataConstellationActualArraySize[out]int32 *

Returns the actual size of dataConstellation array, if you pass NULL to all output array parameters, and set the dataConstellationArraySize parameter to 0.

dmrsConstellation[out]NIComplexSingle

This parameter returns the demodulation reference signal (DMRS) constellation trace.

dmrsConstellationArraySize[in]int32

Specifies the size of the DMRSConstellation array. Set the DMRSConstellationArraySize parameter to 0 to get the size of the DMRSConstellation array in the DMRSConstellationActualArraySize parameter.

dmrsConstellationActualArraySize[out]int32 *

Returns the actual size of DMRSConstellation array, if you pass NULL to all output array parameters, and set the DMRSConstellationArraySize parameter to 0.

Returns

Returns the status code of this operation. The status code either indicates success or describes an error or warning condition. Examine the status code from each call to an RFmx function to determine if an error has occurred.

To obtain a text description of the status code and additional information about the error condition, call the RFmxLTE_GetError function.

The general meaning of the status code is as follows:

Value

Meaning

0

Success

Positive Values

Warnings

Negative Values

Errors