RFmxLTE_ACPFetchOffsetMeasurement
- Updated2024-10-14
- 2 minute(s) read
RFmxLTE_ACPFetchOffsetMeasurement
int32 __stdcall RFmxLTE_ACPFetchOffsetMeasurement (niRFmxInstrHandle instrumentHandle, char selectorString[], float64 timeout, float64* lowerRelativePower, float64* upperRelativePower, float64* lowerAbsolutePower, float64* upperAbsolutePower);
Purpose
Returns the absolute and relative power of the lower and upper offset channel. The relative power is relative to subblock power.
Use "offset<n>" or "subblock<n>/offset<n>" as the selector string to read results from this function.
Refer to the LTE Uplink Adjacent Channel Power and LTE Downlink Adjacent Channel Power 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, subblock number, and offset 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/offset0" "signal::sig1/subblock0/offset0" "signal::sig1/result::r1/subblock0/offset0" "result::r1/subblock0/offset0" You can use the RFmxLTE_BuildOffsetString 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. |
| Output | ||
| Name | Type | Description |
| lowerRelativePower | float64* | Returns the power in lower (negative) offset channel relative to value returned by the
RFMXLTE_ATTR_ACP_RESULTS_TOTAL_AGGREGATED_POWER attribute. For the intra-band noncontiguous type of carrier aggregation, if this offset is not applicable, a NaN is returned. For more information about the applicability of the offset channel, refer to the 3GPP TS 36.521 specification.
|
| upperRelativePower | float64* | Returns the power in upper (positive) offset channel relative to the value returned by the RFMXLTE_ATTR_ACP_RESULTS_TOTAL_AGGREGATED_POWER attribute. For the intra-band noncontiguous type of carrier aggregation, if this offset is not applicable, a NaN is returned. For more information about the applicability of the offset channel, refer to the 3GPP TS 36.521 specification.
|
| lowerAbsolutePower | float64* | Returns the lower (negative) offset channel power. For the intra-band noncontiguous type of carrier aggregation, if this offset is not applicable, a NaN is returned. For more information about the applicability of an offset channel, refer to the 3GPP TS 36.521 specification.
|
| upperAbsolutePower | float64* | Returns the upper (positive) offset channel power. For the intra-band noncontiguous type of carrier aggregation, if this offset is not applicable, a NaN is returned. For more information about the applicability of offset channel, refer 3GPP TS 36.521 specification.
|
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:
|
||||||||