NI RFmx LTE PVT Fetch Functions - ni/grpc-device GitHub Wiki
int32 __stdcall RFmxLTE_PVTFetchMeasurement (niRFmxInstrHandle instrumentHandle, char selectorString[], float64 timeout, int32* measurementStatus, float64* meanAbsoluteOFFPowerBefore, float64* meanAbsoluteOFFPowerAfter, float64* meanAbsoluteONPower, float64* burstWidth);
Returns the measurement. Use "carrier<k>" or "subblock<n>/carrier<k>" as the selector string to read this result.
| 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. |
| Output | ||
| Name | Type | Description |
| measurementStatus | int32* | Returns the measurement status indicating whether the power before and after the burst is within the standard defined limit. |
| meanAbsoluteOFFPowerBefore | float64* | Returns the mean power in the segment before the captured burst. The segment is defined as one subframe prior to the burst for the FDD mode and 10 SCFDMA symbols prior to the burst for the TDD mode. This value is expressed in dBm. |
| meanAbsoluteOFFPowerAfter | float64* | Returns the mean power in the segment after the captured burst. This value is expressed in dBm. The segment is defined as one subframe long excluding a transient period of 20 μs at the beginning. This value is expressed in dBm. |
| meanAbsoluteONPower | float64* | Returns the average power of the subframes within the captured burst, excluding a transient period of 20 μs at the beginning. This value is expressed in dBm. |
| burstWidth | float64* | Returns the width of the captured burst. |
| 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 |
int32 __stdcall RFmxLTE_PVTFetchMeasurementArray (niRFmxInstrHandle instrumentHandle, char selectorString[], float64 timeout, int32 measurementStatus[], float64 meanAbsoluteOFFPowerBefore[], float64 meanAbsoluteOFFPowerAfter[], float64 meanAbsoluteONPower[], float64 burstWidth[], int32 arraySize, int32* actualArraySize);
Returns the measurement array. Use "subblock<n>" as the selector string to read this result.
| 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 |
| measurementStatus | int32[] | Returns the array of the measurement status indicating whether the power before and after the burst is within the standard defined limit. |
| meanAbsoluteOFFPowerBefore | float64[] | Returns the array of the mean power in the segment before the captured burst. The segment is defined as one subframe prior to the burst for the FDD mode and 10 SCFDMA symbols prior to the burst for the TDD mode. This value is expressed in dBm. |
| meanAbsoluteOFFPowerAfter | float64[] | Returns the array of the mean power in the segment after the captured burst. This value is expressed in dBm. The segment is defined as one subframe long excluding a transient period of 20 μs at the beginning. |
| meanAbsoluteONPower | float64[] | Returns the array of the average power of the subframes within the captured burst, excluding a transient period of 20 μs at the beginning. This value is expressed in dBm. |
| burstWidth | float64[] | Returns the array of the width of the captured burst. |
| 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. |
| 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 |
int32 __stdcall RFmxLTE_PVTFetchSignalPowerTrace (niRFmxInstrHandle instrumentHandle, char selectorString[], float64 timeout, float64* x0, float64* dx, float32 signalPower[], float32 absoluteLimit[], int32 arraySize, int32* actualArraySize);
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.
| 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. |
| 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 |
| x0 | float64* | Returns start time of the signal. This value is expressed in seconds. |
| dx | float64* | Returns the time bin spacing. This value is expressed in seconds. |
| signalPower | float32[] | Returns the instantaneous signal power trace. This value is expressed in dBm. |
| absoluteLimit | float32[] | Returns absolute limit for each segment in the trace as specified by section 6.5.2.4.5 of the 3GPP 36.521 specification. |
| 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. |
| 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 |