RFmxLTE_ModAccFetchPSSCHConstellationTrace
- Updated2024-10-14
- 2 minute(s) read
RFmxLTE_ModAccFetchPSSCHConstellationTrace
int32 __stdcall RFmxLTE_ModAccFetchPSSCHConstellationTrace (niRFmxInstrHandle instrumentHandle, char selectorString[], float64 timeout, NIComplexSingle dataConstellation[], int32 dataConstellationArraySize, int32* dataConstellationActualArraySize, NIComplexSingle DMRSConstellation[], int32 DMRSConstellationArraySize, int32* DMRSConstellationActualArraySize);
Purpose
Returns the recovered physical sidelink shared channel (PSSCH) constellation points. The constellation points of different slots in the
RFMXLTE_ATTR_MODACC_MEASUREMENT_LENGTH are concatenated.
Use "carrier<k>" or "subblock<n>/carrier<k>" as the selector string to read results from this function.
Parameters
| Input | ||
| Name | Type | Description |
| instrumentHandle | niRFmxInstrHandle | Specifies the instrument session. The RFmx obtains this parameter from the RFmxLTE_Initialize function. |
| selectorString | char[] | 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. Example: "subblock0/carrier0" "signal::sig1/subblock0/carrier0" "result::r1/subblock0/carrier0" "signal::sig1/result::r1/subblock0/carrier0" You can use the RFmxLTE_BuildCarrierString function to build the selector string. |
| timeout | float64 | Specifies the timeout, in seconds, for fetching the specified measurement. 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. |
| dataConstellationArraySize | int32 | Specifies the size of dataConstellationI and dataConstellationQ array. Set the dataConstellationArraySize parameter to 0 to get the size of dataConstellationI and dataConstellationQ array in the dataConstellationActualArraySize parameter. |
| DMRSConstellationArraySize | int32 | Specifies the size of DMRSConstellation array. Set the DMRSConstellationArraySize parameter to 0 to get the size of DMRSConstellation array in the DMRSConstellationActualArraySize parameter. |
| Output | ||
| Name | Type | Description |
| dataConstellation | NIComplexSingle[] | Returns the PSSCH data constellation trace.
|
| dataConstellationActualArraySize | 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 | NIComplexSingle[] | Returns the PSSCH demodulation reference signal (DMRS) constellation trace.
|
| DMRSConstellationActualArraySize | int32* | Returns the actual size of DMRSConstellation array, if you pass NULL to all output array parameters, and set the DMRSConstellationArraySize parameter to 0. |
Return Value
| Name | Type | Description | ||||||||
| status | int32 | 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:
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