Fetches the constellations traces for NPSS and NSSS. Use "carrier<k>" or "subblock<n>/carrier<k>" as the selector string to read results from this function.

Syntax

int32 __stdcall RFmxLTE_ModAccFetchNbSynchronizationSignalConstellation(niRFmxInstrHandle instrumentHandle, char selectorString[], float64 timeout, NIComplexSingle nSSSConstellation[], int32 nSSSConstellationArraySize, int32 *nSSSConstellationActualArraySize, NIComplexSingle nPSSConstellation[], int32 nPSSConstellationArraySize, int32 *nPSSConstellationActualArraySize)

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.

nSSSConstellation[out]NIComplexSingle

This parameter returns NSSS constellation trace.

nSSSConstellationArraySize[in]int32

Specifies the size of the NSSSConstellation array. Set the NSSSConstellationArraySize parameter to 0 to get the size of the NSSSConstellation array in the NSSSConstellationActualArraySize parameter.

nSSSConstellationActualArraySize[out]int32 *

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

nPSSConstellation[out]NIComplexSingle

This parameter returns NPSS constellation trace.

nPSSConstellationArraySize[in]int32

Specifies the size of the NPSSConstellation array. Set the NPSSConstellationArraySize parameter to 0 to get the size of the NPSSConstellation array in the NPSSConstellationActualArraySize parameter.

nPSSConstellationActualArraySize[out]int32 *

Returns the actual size of NPSSConstellation array, if you pass NULL to all output array parameters, and set the NPSSConstellationArraySize 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