LTE EARFCN to Frequency Conversion Explained

LTE EARFCN stands for E-UTRA Absolute Radio Frequency Channel Number. This page explains the LTE EARFCN equation and provides a table for calculating downlink EARFCN ($N_{DL}$) and uplink EARFCN ($N_{UL}$).

A link to an LTE EARFCN calculator is also provided, which is very useful for LTE EARFCN to frequency and vice versa conversion. The EARFCN number is within the range of 0 to 65535. The relationship between LTE carrier frequency (MHz) and EARFCN is described below.

LTE EARFCN Equation

The following equations relate downlink and uplink frequencies to their respective EARFCNs:

$F_{downlink} = F_{DL\_Low} + 0.1 \cdot (N_{DL} - N_{DL\_Offset})$

$F_{uplink} = F_{UL\_Low} + 0.1 \cdot (N_{UL} - N_{UL\_Offset})$

Where:

• $N_{DL}$ is the downlink EARFCN.
• $N_{UL}$ is the uplink EARFCN.
• $N_{DL\_Offset}$ is the offset used to calculate the downlink EARFCN.
• $N_{UL\_Offset}$ is the offset used to calculate the uplink EARFCN.

The following table shows the EARFCN to frequency conversion for both the downlink and uplink directions in an LTE network. You can also use an EARFCN calculator to avoid manual calculations.

EARFCN to Frequency Conversion Table

LTE EARFCN to Frequency Conversion Calculator

Visit following link below to try our LTE calculator to calculate frequency as per LTE EARFCN input provided.

• LTE EARFCN to Frequency Conversion Calculator