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WiMAX in IMT-2000

Background:

In November, 2006, the IEEE proposed that a new terrestrial radio interface called “IP-OFDMA” be included in Recommendation ITU-R M.1457 (“Detailed specifications of the radio interfaces of International Mobile Telecommunications-2000 (IMT-2000”). The proposed interface is based upon the IEEE 802.16 standard (commonly known as WiMAX). Based upon our self-evaluation, the WiMAX Forum believes that IP-OFDMA meets the requirements and objectives of IMT-2000.

The “IP-OFDMA” proposal was reviewed and considered at the 21st meeting of the ITU-R Working Party 8F (17-25 January 2007). As a result, Circular Letter 8/LCCE/153 was issued. In order to facilitate the consideration of the “IP-OFDMA” technology in an expeditious manner, the Circular Letter requests that contributions of evaluation results related to the “IP-OFDMA” submission be made on or before 8 May 2007. This will allow advance review of the material before the next meeting of Working Party 8F 23-31 May 2007 in Kyoto.

Information related specifically related to the “IP-OFDMA” submission activities can be found on the specially established web page available as a link from the ITU-R Working Party 8F (WP 8F) web site. The title of this web page is “Proposed Sixth Terrestrial Radio Interface for IMT-2000 in Rec. ITU R M.1457”.

Contributions to the ITU-R:

• 8F/1065: IEEE submission of proposed new terrestrial radio interface This document includes the Cover sheet, proposed edits to Recommendation ITU-R M.1457, and technology description templates A1 and A2.
• 8F/1075: WiMAX Forum submission describing the benefits of including IP-OFDMA as an additional terrestrial radio interface
• 8F/1079r1: WiMAX Forum submission with supporting technical information on IP-OFDMA. This document includes additional information IP-OFDMA, technical information about IP-OFDMA, and a self-evaluation.
• 8F/1344: Unwanted emission characteristics of IMT-2000 OFDMA TDD WMAN Mobile Stations. Further additional material for Annex 6 of Recommendation ITU?R M.1581
• 8F/1345: Unwanted emission characteristics of IMT-2000 OFDMA TDD WMAN Base Stations. Further additional material for Annex 6 of Recommendation ITU?R M.1580
• 8F/1346: Impact of new information on ACLR performance of IMT-2000 OFDMA TDD WMAN on sharing between IMT-2000 and fixed and nomadic Broadband Wireless Access systems.
• 8F/1347: Clarifications regarding OFDMA TDD WMAN link budget
• 8F/1348: Data and voice capacity of OFDMA TDD WMAN
• 8F/1349: OFDMA TDD WMAN coverage performance
• 8F/1359: Supporting material for the compliance of OFDMA TDD WMAN with the three minimum performance capabilities upon which full consensus was not previously established

Additional ITU-R documents:

• Recommendation ITU-R M.1225: Guidelines for evaluation of radio transmission technologies for IMT-2000
• Recommendation ITU-R M.1457: Detailed specifications of the radio interfaces of International Mobile Telecommunications-2000 (IMT-2000)
• Circular Letter 8/LCCE/47: Request for Submission of Candidate Radio Transmission Technologies (RTTs) for IMT-2000/FPLMTS Radio Interface
• Circular Letter 8/LCCE/95: Update procedure for revisions of Recommendation ITU-R M.1457 (Detailed specifications of the radio interfaces of IMT-2000)
• Circular Letter 8/LCCE/153: Announcement of the submission of a candidate radio interface technology for consideration for inclusion in Recommendation ITU-R M.1457 as the sixth radio interface in the IMT-2000 terrestrial radio interfaces under the 8/LCCE/95 process

Additional background material:

• Unwanted Emission Characteristics of IMT-2000 OFDMA TDD WMAN Base Stations
• Unwanted Emission Characteristcs of IMT-2000 OFDMA TDD WMAN Mobile Stations
• IEEE Std 802.16e-2005, Amendment for Combined Fixed and Mobile Broadband Wireless Access Systems, December 2005
• IEEE Std 802.16™-2004, IEEE Standard for Local and metropolitan area networks: Part 16: Air Interface for Fixed Broadband Wireless Access Systems, June 2004
• WiMAX Forum™ Mobile System Profile, Release 1.0 Approved Specification, Revision 1.2.2: 2006-11-17
• Mobile WiMAX – Part I: A Technical Overview and Performance Evaluation, August 2006, WiMAX Forum
• Mobile WiMAX Network Architecture and Specifications
• 3GPP TSG-RAN-1, "Effective SIR Computation for OFDM System-Level Simulations", R1 03 1370, Meeting #35, Lisbon, Portugal, November 2003
• Superseded Documents
• IP-OFDMA spurious emissions, May 2007
• IP-OFDMA Base Station Masks 5 and 10 MHz, May 2007
• WiMAX Forum User Equipment Coexistence Emission Mask for 2496-2690 MHz Band for 10 MHz and 5 MHz Channels, May 2007

Evaluation Groups:

• An evaluation workshop will be held 13-14 March 2007 in Orlando, Florida. Technical experts from the WiMAX Forum will be attending this meeting to answer any questions about the self-evaluation.

Information about the Canadian Evaluation Group:

There are currently 9 evaluation groups registered with the ITU-R. More information about these groups can be found at www.itu.int/itu-r/go/ip-ofdma

• Association of Radio Industries and Businesses
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• ATIS Wireless Technologies and Systems Committee
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• Brazilian Evaluation Group
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• Canadian Evaluation Group
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• Chinese Evaluation Group
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• Israeli Evaluation Group
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• Telecommunications Technology Association
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• TIA - TR-45 Ad-Hoc for International Mobile Telecommunications
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• Wireless Communications Association International