Returns the instantaneous signal power trace along with absolute limit for each segment in the trace as specified by section 6.5.2.4.5 of the 3GPP 36.521. This value is expressed in dBm.
Use "carrier<k>" or "subblock<n>/carrier<k>" as the selector string to read this result.

Syntax

int32 __stdcall RFmxLTE_PvtFetchSignalPowerTrace(niRFmxInstrHandle instrumentHandle, char selectorString[], float64 timeout, float64 *x0, float64 *dx, float32 signalPower[], float32 absoluteLimit[], int32 arraySize, int32 *actualArraySize)

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.

x0[out]float64 *

This parameter returns start time of the signal. This value is expressed in seconds.

dx[out]float64 *

This parameter returns the time bin spacing. This value is expressed in seconds.

signalPower[out]float32

This parameter returns the instantaneous signal power trace. This value is expressed in dBm.

absoluteLimit[out]float32

This parameter returns absolute limit for each segment in the trace as specified by section 6.5.2.4.5 of the 3GPP 36.521 specification.

arraySize[in]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.

actualArraySize[out]int32 *

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