RFmx LTE CVI

RFmxLTE_SEMFetchUpperOffsetPowerArray

  • 更新日2024-10-14
  • 3分で読める

RFmxLTE_SEMFetchUpperOffsetPowerArray

int32 __stdcall RFmxLTE_SEMFetchUpperOffsetPowerArray (niRFmxInstrHandle instrumentHandle, char selectorString[], float64 timeout, float64 absoluteIntegratedPower[], float64 relativeIntegratedPower[], float64 absolutePeakPower[], float64 peakFrequency[], float64 relativePeakPower[], int32 arraySize, int32* actualArraySize);

Purpose

Returns an array of total absolute and relative powers, peak, absolute, and relative powers, and frequencies at peak absolute powers of upper offset segments. The relative power is relative to total aggregated power.
Use "subblock<n>" as the selector string to read results from this function.
Refer to the LTE Uplink Spectral Emission Mask and LTE Downlink Spectral Emission Mask topics for more information.

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, and subblock 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"
"signal::sig1/subblock0"
"result::r1/subblock0"
"signal::sig1/result::r1/subblock0"
You can use the RFmxLTE_BuildSubblockString 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
absoluteIntegratedPower float64[] Returns the array of upper offset segment powers. For the intra-band noncontiguous type of carrier aggregation, the offset segment may be truncated or discarded based on offset overlap rules as defined in the 3GPP TS 36.521 specification. If the offset segment is truncated the measurement is performed on the updated offset segment. If the offset segment is discarded, a NaN is returned.
relativeIntegratedPower float64[] Returns the array of powers in the upper offset segment relative to the value returned by the RFMXLTE_ATTR_SEM_RESULTS_TOTAL_AGGREGATED_POWER attribute. For the intra-band noncontiguous type of carrier aggregation, the offset segment may be truncated or discarded based on offset overlap rules as defined in the 3GPP TS 36.521 specification. If the offset segment is truncated the measurement is performed on the updated offset segment. If the offset segment is discarded, a NaN is returned.
absolutePeakPower float64[] Returns the array of peak powers in the upper offset segment. For the intra-band noncontiguous type of carrier aggregation, the offset segment may be truncated or discarded based on offset overlap rules as defined in the 3GPP TS 36.521 specification. If the offset segment is truncated the measurement is performed on the updated offset segment. If the offset segment is discarded, a NaN is returned.
peakFrequency float64[] Returns the array of frequency at which the peak power occurs in the upper (positive) offset segment. For the intra-band noncontiguous type of carrier aggregation, the offset segment may be truncated or discarded based on offset overlap rules as defined in the 3GPP TS 36.521 specification. If the offset segment is truncated the measurement is performed on the updated offset segment. If the offset segment is discarded, a NaN is returned.
relativePeakPower float64[] Returns the array of peak power in the upper (positive) offset segment relative to the value returned by the RFMXLTE_ATTR_SEM_RESULTS_TOTAL_AGGREGATED_POWER attribute. For the intra-band noncontiguous type of carrier aggregation, the offset segment may be truncated or discarded based on offset overlap rules as defined in the 3GPP TS 36.521 specification. If the offset segment is truncated the measurement is performed on the updated offset segment. If the offset segment is discarded, a NaN is returned.
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
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:

Value Meaning
0 Success
Positive Values Warnings
Negative Values Errors