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  **World Radiocommunication Conference (WRC-07)\  ![](media/image1.png){width="1.9270833333333333in"
  Geneva, 22 October - 16 November 2007**          height="0.8125in"}

                                                   

                                                   

  **PLENARY MEETING**                              **Addendum 2 to Document 5-E**

                                                   **7 September 2007**

                                                   **Original: English**

  United States of America                         

  proposals for the work of the conference         

  Agenda item 1.4                                  

                                                   
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1.4 to consider frequency-related matters for the future development of
IMT‑2000 and systems beyond IMT‑2000 taking into account the results of
ITU‑R studies in accordance with Resolution **228 (Rev.WRC‑03)**

Background information

Resolution 228 (WRC-03) calls for studies on frequency-related matters
for the "future development of IMT-2000" (now referred to as "IMT-2000")
and "systems beyond IMT-2000" (now named "IMT-Advanced") as defined by
ITU-R. *resolves* 2 under Resolution 228 (WRC-03) invites the ITU-R to
report, in time for WRC-07, on the results of studies on the spectrum
requirements and potential frequency ranges suitable for IMT-2000 and
IMT-Advanced, taking into account:

-- the evolving user needs, including the growth in demand for IMT-2000
services;

-- the evolution of IMT-2000 and pre-IMT-2000 systems through advances
in technology;

-- the bands currently identified for IMT-2000;

-- the time-frame in which spectrum would be needed;

-- the period for migration from existing to future systems;

-- the extensive use of frequencies below those identified for IMT-2000
in RR No. 5.317A.

WARC-92 identified the bands 1 885-2 025 MHz/2 110-2 200 MHz and
WRC-2000 identified the bands 806-960 MHz (ITU-R Region 1: 862-960
MHz)/1 710-1 885 MHz/2 500-2 690 MHz for use on a worldwide basis by
administrations wishing to implement IMT-2000 systems. Resolutions 212
(WARC-92), 223 (WRC-2000) and 224 (WRC-2000) invite administrations to
make available the necessary portion of these identified bands for
IMT-2000 development, while recognizing that administrations have the
flexibility to use the bands for other applications of services to which
the bands are allocated and to implement IMT-2000 in other mobile bands.

As part of the process to identify candidate bands to meet the potential
spectrum requirements for IMT-2000 and IMT-Advanced (collectively
referred to as "IMT"), Resolution 228 calls for technical studies on the
compatibility with existing services in the bands of interest. However,
at this time such studies have not been completed.

In addition to bands already identified for IMT-2000, the following
bands are being considered as candidate bands for the terrestrial
component of IMT-2000 and IMT-Advanced:

-- 410-430 MHz

-- 450-470 MHz

-- 470-806/862 MHz

-- 2 300-2 400 MHz

-- 2 700-2 900 MHz

-- 3 400-4 200 MHz

-- 4 400-4 990 MHz.

Two of the bands (or portions thereof) identified as candidates, 410-430
and 2 300-2 400 MHz, are considered in this proposal.

410-430 MHz

The band 410-430 MHz is used extensively by many administrations for
fixed and mobile communications systems, long-range surveillance
systems, as well as personnel location systems. Ground, shipborne, and
airborne radars, which are used for national security, utilize this
particular frequency band. Parts of the band are also used for extra
vehicular activity (EVA) communications by both the Shuttle and
International Space Station on a primary basis for the space research
service; and for transmitting hydrological and meteorological data.

2 300-2 400 MHz

This frequency band is allocated worldwide to the fixed, and mobile
services on a co-primary basis; however, these allocations are not the
only service allocations within the band. In the United States, use of
this band is for aeronautical telemetry, amateur services, satellite
broadcasting, and mobile applications.

ARTICLE 5

Frequency allocations

Section IV -- Table of Frequency Allocations\
(See No. 2.1)

**[NOC]{.underline}** USA/5A2/1

410-460 MHz

**Reasons:** ITU-R studies have not shown compatibility between IMT
systems and the incumbent services in the 410-430 MHz band. Extensive
use of this band for national security and public safety purposes
preclude the use of this band for commercial wireless purposes.

**[NOC]{.underline}** USA/5A2/2

2 170-2 520 MHz

+----------------------+----------------------+-----------------------+
| Allocation to        |                      |                       |
| services             |                      |                       |
+----------------------+----------------------+-----------------------+
| Region 1             | Region 2             | Region 3              |
+----------------------+----------------------+-----------------------+
| **2 300-2 450**      | **2 300-2 450**      |                       |
|                      |                      |                       |
| FIXED                | FIXED                |                       |
|                      |                      |                       |
| MOBILE               | MOBILE               |                       |
|                      |                      |                       |
| Amateur              | RADIOLOCATION        |                       |
|                      |                      |                       |
| Radiolocation        | Amateur              |                       |
+----------------------+----------------------+-----------------------+
| 5.150 5.282 5.395    | 5.150 5.282 5.393    |                       |
|                      | 5.394 5.396          |                       |
+----------------------+----------------------+-----------------------+

**Reasons:** In the United States, use of this band is for aeronautical
telemetry and telecommand, amateur services, and satellite broadcasting.

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