RFmx LTE CVI

Table of Contents

RFmxLTE_CfgCellSpecificRatio

  • Updated2024-10-14
  • 2 minute(s) read

RFmxLTE_CfgCellSpecificRatio

int32 __stdcall RFmxLTE_CfgCellSpecificRatio (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 cellSpecificRatio);

Purpose

Configures the cellSpecificRatio parameter.
Use "carrier<k>" or "subblock<n>/carrier<k>" as the selector string to configure this function.

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, subblock number and carrier number. If you do not specify the signal name, the default signal instance is used.
Example:
"subblock0/carrier0"
"signal::sig1/subblock0/carrier0"
You can use the RFmxLTE_BuildCarrierString function to build the selector string.
cellSpecificRatio int32 Specifies the ratio Pb/Pa for the cell-specific ratio of one, two, or four cell-specific antenna ports as described in Table 5.2-1 in section 5.2 of the 3GPP TS 36.213 Specifications. This parameter determines the power of the channel resource element (RE) in the symbols that do not contain the reference symbols.
RFMXLTE_VAL_DOWNLINK_USER_DEFINED_RATIO_P_B0 (0) Specifies a ratio of 1 for one antenna port and 5/4 for two or four antenna ports.
RFMXLTE_VAL_DOWNLINK_USER_DEFINED_RATIO_P_B1 (1) Specifies a ratio of 4/5 for one antenna port and 1 for two or four antenna ports.
RFMXLTE_VAL_DOWNLINK_USER_DEFINED_RATIO_P_B2 (2) Specifies a ratio of 3/5 for one antenna port and 3/4 for two or four antenna ports.
RFMXLTE_VAL_DOWNLINK_USER_DEFINED_RATIO_P_B3 (3) Specifies a ratio of 2/5 for one antenna port and 1/2 for two or four antenna ports.

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

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