UMTS UARFCN to Frequency Conversion

This page provides the equations for converting between frequency and UARFCN. It also includes a link to an online calculator for convenience.

UARFCN stands for UTRA Absolute Radio Frequency Channel Number. It’s primarily used in UMTS/WCDMA systems to convert frequencies in different bands to a UARFCN number, and vice versa.

Frequency to UARFCN Conversion Equation

• UARFCN in the downlink = 5 * (Downlink Frequency - FDL_Offset)
• UARFCN in the uplink = 5 * (Uplink Frequency - FUL_Offset)

UARFCN to Frequency Conversion Equation

• Downlink Frequency = FDL_Offset + 0.2 * (Downlink UARFCN)
• Uplink Frequency = FUL_Offset + 0.2 * (Uplink UARFCN)

UMTS UARFCN to Frequency Conversion

• Follow link below for our UMTS calculator which converts UARFCN to frequency.

• UARFCN to Frequency Conversion Calculator

Example

Input: UMTS Downlink UARFCN = 10570

Outputs:

• UMTS Downlink Frequency (MHz) = 2114
• UMTS Uplink Frequency (MHz) = 1924
• UMTS Uplink UARFCN = 9620

Explore CDMA, WCDMA and UMTS Technologies

• CDMA Basics Tutorial
• WCDMA Cell Search Procedure
• WCDMA UE & eNodeB Measurements
• WCDMA FDD Physical Layer Design
• WCDMA RRC States & Procedure
• WCDMA Frame & Physical Layer
• UMTS Tutorial
• UMTS Architecture
• UMTS Protocol Stack