Configures the Ncell ID and Uplink Subcarrier Spacing parameters for the NB-IoT signal.
Use "carrier<k>" or "subblock<n>/carrier<k>" as the selector string to configure this function.

Syntax

int32 __stdcall RFmxLTE_CfgNbIoTComponentCarrier(niRFmxInstrHandle instrumentHandle, char selectorString[], int32 nCellId, int32 uplinkSubcarrierSpacing)

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, subblock number and carrier number. If you do not specify the signal name, the default signal instance is used. The default value is "subblock0/carrier0".
Example:
"subblock0/carrier0"
"signal::sig1/subblock0/carrier0"
You can use the RFmxLTE Build Carrier String function to build the selector string.

nCellId[in]int32

This parameter specifies the narrowband physical layer cell identity. The default value is 0. Valid values are 0 to 503, inclusive.

uplinkSubcarrierSpacing[in]int32

This parameter specifies the subcarrier bandwidth of an NB-IoT signal. This parameter specifies the spacing between adjacent subcarriers. The default value is 15 kHz.

Name

Value

Description

RFMXLTE_VAL_NB_IOT_UPLINK_SUBCARRIER_SPACING_15KHZ

0 (0x0)

The subcarrier spacing is 15 kHz.

RFMXLTE_VAL_NB_IOT_UPLINK_SUBCARRIER_SPACING_3_75KHZ

1 (0x1)

The subcarrier spacing is 3.75 kHz.

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