RFmxNR_ModAccFetchPDSCHDMRSConstellationTraceSplit
- Updated2024-10-14
- 1 minute(s) read
RFmxNR_ModAccFetchPDSCHDMRSConstellationTraceSplit
int32 __stdcall RFmxNR_ModAccFetchPDSCHDMRSConstellationTraceSplit (niRFmxInstrHandle instrumentHandle, char selectorString[], float64 timeout, float32 I[], float32 Q[], int32 arraySize, int32* actualArraySize);
Purpose
Fetches the in-phase and quadrature-phase part of PDSCH DMRS trace.
Use "carrier<k>" or "subblock<n>" 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 driver obtains this parameter from the RFmxNR_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 RFmxNR_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. |
| arraySize | int32 | Specifies the size of the array. Set the arraySize parameter to 0 to get the size of all the arrays in the actualArraySize parameter. |
| Output | ||
| Name | Type | Description |
| I | float32[] | Returns the in-phase part of PDSCH DMRS constellation trace.
|
| Q | float32[] | Returns the quadrature-phase part of PDSCH DMRS constellation trace.
|
| actualArraySize | int32* | Returns the actual size of the array, if you pass NULL to all output array parameters, and set the arraySize parameter to 0. |
Return Value
| Name | Type | Description |