UMTS World Logo

Home
News
Industry
Technology
Applications
3G Devices
Events
Articles
FAQ
Resources
3G Jobs
History
Links
Downloads
Last Words
Contact Us

UMTSWorld box



3G Frequencies


According to "WARC-92 frequencies for IMT-2000" resolution: "The bands 1885-2025 MHz and 2110-2200 MHz are intended for use, on a worldwide basis, by administrations wishing to implement International Mobile Telecommunications-2000 (IMT-2000). Such use does not preclude the use of these bands by other services to which they are allocated."

Here is the summary of UMTS frequencies:

1920-1980 and 2110-2170 MHz Frequency Division Duplex (FDD, W-CDMA) Paired uplink and downlink, channel spacing is 5 MHz and raster is 200 kHz. An Operator needs 3 - 4 channels (2x15 MHz or 2x20 MHz) to be able to build a high-speed, high-capacity network.
1900-1920 and 2010-2025 MHz Time Division Duplex (TDD, TD/CDMA) Unpaired, channel spacing is 5 MHz and raster is 200 kHz. Tx and Rx are not separated in frequency.
1980-2010 and 2170-2200 MHz Satellite uplink and downlink.

Carrier frequencies are designated by a UTRA Absolute Radio Frequency Channel Number (UARFCN). The general formula relating frequency to UARFN is:

UARFCN = 5 * (frequency in MHz)


UMTS Frequencies

WARC-92 IMT-2000 Frequencies


WRC-2000 in Istanbul
  • Identified the bands 1710 - 1885 and 2500 - 2690 MHz for IMT-2000
  • Identified those parts of the band 806 - 960 MHz which are allocated to the mobile service on a primary basis
  • Admitted that High Altitude Platform Stations (HAPS) may use the WARC-92 frequency bands for terrestrial IMT-2000 on restrictive conditions
  • Decided that the frequency bands 1525 - 1544, 1545 - 1559, 1610 - 1626.5, 1626.5 - 1645.5, 1646.5 - 1660.5 and 2483.5 - 2500 MHz may be used for the satellite component of IMT-2000, as well as the bands 2500 - 2520 MHz and 2670- 2690 MHz, depending on market developments
  • Decided that "the bands, or portions of the bands, 1710 - 1885 MHz and 2500 - 2690 MHz, are identified for use by administrations wishing to implement International Mobile Telecommunications-2000 (IMT-2000). This identification does not preclude the use of these bands by any application of the services to which they are allocated and does not establish priority in the Radio Regulations".


    UMTS Frequencies

    WRC-2000 IMT-2000 Frequencies



    From the TS 25.101 Specification:

    TDD frequency bands

    UTRA FDD frequency bands


    TX-RX frequency separation

    TX-RX frequency separation


    UARFCN definition

    UARFCN definition


    UARFCN definition (Band II additional channels)

    UARFCN definition (Band II additional channels)


    UTRA Absolute Radio Frequency Channel Number

    UTRA Absolute Radio Frequency Channel Number


  • USA spectrum allocation by Unstrung (10/09/04)
  • India spectrum allocation by 3G Newsroom (28/09/04)



      UMTS Overview UMTS Network UMTS Frequencies UMTS Coding UMTS Link Budget
    UMTS Security UMTS Codes Synchronisation Co-location
    3G Data Speeds UTRA Time Slots UTRA Channels WCDMA Spreading
    UMTS QoS Channel Coding Media Formats Compressed Mode
    UMTS HSDPA UMTS Handovers Location Services UMTS Power Control
    UMTS Overview Cell Search Random Access RCC States Iui Frame Structure
    CDMA Overview Call Setup UTRAN Interfaces Paging Virtual Home Environment

  • | Advertise | Support Us | Contribute | Site Map | Legal | Privacy | About | Notes|
    Copyright 1999 - 2003 UMTSWorld.com
    email: info@umtsworld.com