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DA 02-1779 July 25, 2002

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DA 02-1779 July 25, 2002 PUBLIC NOTICE Federal Communications Commission News Media Information 202 / 418-0500 th Fax-On-Demand 202 / 418-2830 445 12 St., S.W. TTY 202 / 418-2555 Washington, D.C. 20554 Internet: http://www.fcc.gov ftp.fcc.gov DA 02-1779 July 25, 2002 THE FCC'S ADVISORY COMMITTEE FOR THE 2003 WORLD RADIOCOMMUNICATION CONFERENCE APPROVES DRAFT PROPOSALS On July 22, 2002, the World Radiocommunication Conference Advisory Committee (WRC-03 Advisory Committee) adopted recommendations to the Commission on numerous issues that the 2003 World Radiocommunication Conference (WRC-03) will address. The WRC-03 Advisory Committee was established by the Commission in January 2001 to assist it in the development of proposals for WRC-03. To that end, the WRC-03 Advisory Committee has forwarded the recommendations it has developed since the beginning of 2001 to the Commission for consideration. We have attached to this Public Notice the WRC-03 Advisory Committee’s recommendations, which are in the form of recommended draft proposals to the WRC-03. We appreciate the substantial amount of work that the WRC-03 Advisory Committee has put into developing its recommendations. This Public Notice requests comments on all of these recommendations. Based upon our initial review of the recommendations forwarded to the Commission, the International Bureau, in coordination with other Commission Bureaus and Offices, tentatively concludes that we can generally support all of the proposals recommended by the WRC-03 Advisory Committee. We do, however, have some reservations about the proposals reflected in documents WAC/126, WAC/127 and WAC/129. We seek comment on the recommendations that appear in all of the WRC-03 Advisory Committee documents and on our tentative conclusions. In addition, the National Telecommunications and Information Administration (NTIA) has submitted letters to the Commission containing draft proposals that have been developed by the Executive Branch Agencies. We also request comment on these draft proposals, which are attached hereto as well. The FCC will consider the draft proposals and comments provided in its upcoming consultations with the U.S. Department of State and NTIA in the development of U.S. proposals to WRC-03. Once agreed by these agencies of the U.S. Government, proposals will be used by U.S. delegations at bilateral, regional and international meetings. The draft proposals attached to this Public Notice may evolve as we approach WRC-03 and during the course of interagency discussions. Therefore, they do not constitute the final national position on these issues. The complete texts of these draft proposals are also available in the FCC's Information Reference Center, Room CY-A257, 445 12th Street, SW, Washington, DC 20554 and by accessing the FCC's WRC-03 world wide web site at http://www.fcc.gov/wrc-03. To comment on the proposals, please submit an original and one copy of your comments to the Office of the Secretary, Federal Communications Commission, 445 12th Street, SW, Washington, DC 20554 and provide a courtesy copy to Alex Roytblat, FCC WRC-03 Director, Room 6-B505. Comments should refer to specific proposals by document number. The deadline for comments on the draft proposals and NTIA letters is August 16, 2002. I. Informal Working Group 2: Mobile-Satellite Service including GPS DRAFT PROPOSAL FOR THE WORK OF THE CONFERENCE Doc. WAC/126(22.07.02) WRC-03 Agenda Item 1.16: to consider allocations on a worldwide basis for feeder links in bands around 1.4 GHz to the non-GSO MSS with service links operating below 1 GHz, taking into account the results of ITU-R studies conducted in response to Resolution 127 (Rev.WRC-2000), provided that due recognition is given to the passive services, taking into account No. S5.340 Background Information A total of only l.525 MHz (space-to-Earth) and l.9 MHz (Earth-to-space) are presently allocated on a worldwide primary basis to the MSS below l GHz, and 300 kHz (Earth-to-space) is allocated for land MSS on a worldwide primary basis. These allocations are for both the MSS service links and MSS feeder links. Since these allocations were made at WARC-92 and WRC-95, the Radiocommunication Bureau has identified 25 non-GSO MSS networks at frequencies below l GHz at some state of coordination and 9 non-GSO MSS networks at the advance publication stage only. Yet it appears that many of the proposed networks cannot be implemented in the existing allocations, because there is not enough spectrum readily available in the allocated spectrum bands. Additional feeder link spectrum outside of the currently allocated bands would provide dedicated feeder link spectrum and free up existing allocations for scarce service link spectrum. WRC-97 approved Resolution 127 to study sharing techniques for NVNG MSS < 1 GHz feeder links (Earth-to-space) in the 1390-1400 MHz band and space-to-Earth feeder links in the 1427-1432 MHz band. Sharing studies completed in the ITU-R under Resolution 127 with respect to the proposed allocation of spectrum for space-to-Earth feeder links (1429-1432 MHz) include: (a) protection of the radioastronomy service by controlling out-of-band emissions to meet Recommendation RA.769-1 levels of -255 dB (W/m2/Hz) for the 1400-1427 MHz band; (b) protection of EESS by meeting Recommendation SA. 1029-1 requirements of -171 dBW/27MHz for in-band pfd levels; and (c) sharing with fixed and mobile services on the basis of not exceeding the pfd levels established for sharing in the adjacent bands of -146 dBW/m2/4 kHz (since no level had been established for the 1429-1432 MHz band). Sharing studies that have been completed with respect to the proposed allocation of spectrum for Earth-to-space feeder links include: (a) protection of EESS by meeting Recommendation SA.1029-1 requirements of -171 dBW/27MHz for in-band pfd levels; and (b) sharing with the radiolocation service by equipping the non-GSO MSS satellites with adequate filtering. Protection of the radioastronomy service at nearby frequencies can be achieved by geographic separation of MSS uplinks from radioastronomy sites. In addition, sharing with the fixed, mobile, and passive services will be dependent on the characteristics of the respective services. As a result of the favorable initial studies in these bands, WRC-00 placed on the proposed agenda for WRC-03 (subsequently approved by the ITU Council) Agenda Item 1.16, to consider allocations at 1390-1393 MHz for Earth-to-space feeder links and 1429-1432 MHz for space-to- Earth feeder links for the non-GSO MSS service with the understanding that Resolution 127 studies 2 would be completed including testing of near-flight hardware to validate the theoretical studies approved earlier. The U.S. proposes allocations in the 1390-1393 MHz (Earth-to-space) and 1429-1432 MHz (space- to-Earth) bands at WRC-03 for non-GSO MSS feeder links. The proposed allocations are in bands close to the passive services band at 1400-1427 MHz that must be protected from out-of-band and spurious emissions. Studies have shown that interference to radio astronomy and the other passive services can be avoided using various techniques including low-power transmitter levels, choice of modulation, symbol shaping, output filtering and band limiting filters, the use of which can minimize the band separation necessary to meet the recommended interference threshold levels for protection of these services. The U.S. expects that the hardware testing to be completed before WRC-03 will confirm the theoretical results already approved by the ITU-R for the protection of the passive services. The U.S. proposal for allocation of these bands to NGSO MSS feeder links follows. 3 Proposal: USA/ /1 (MOD) 1 350-1 525 MHz Allocation to services Region 1 Region 2 Region 3 1 350-1 400 1 350-1 400 FIXED RADIOLOCATION MOBILE RADIOLOCATION 5.149 5.338 5.339 5.149 5.334 5.339 ADD 5.XXX ADD 5.XXXA ADD 5.XXX ADD 5.XXXA 1 429-1 452 1 429-1 452 FIXED FIXED MOBILE except aeronautical MOBILE 5.343 mobile 5.341 5.342 5.341 ADD 5.YYY ADD 5.XXXA ADD 5.YYY ADD 5.XXXA Reason: To provide additional allocations for non-GSO MSS feeder links (Earth-to-space) and (space-to-Earth) to support existing non-GSO MSS service allocations below 1 GHz. USA/ /2 (ADD) 5.XXX Additional allocation: the band 1390-1393 MHz is also allocated on a primary basis to the mobile-satellite service (Earth-to-space). This allocation is limited to feeder links for non- geostationary orbit mobile-satellite systems with service links below 1 GHz. Reason: To provide additional allocations for non-GSO MSS feeder links (Earth-to-space) to support existing non-GSO MSS allocations below 1 GHz. USA/ /3 (ADD) 5.XXXA The use of the bands 1390-1393 MHz and 1429-1432 MHz by the mobile-satellite service is subject to coordination under No. 9.11A. Reason: To provide protection to other primary services in the bands while enabling the additional allocations to the mobile-satellite service feeder links. 4 USA/ /4 (ADD) 5.YYY Additional allocation: the band 1429-1432 MHz is also allocated on a primary basis to the mobile-satellite service (space-to-Earth). This allocation is limited to feeder links for non- geostationary orbit mobile-satellite systems with service links below 1 GHz. Reason: To provide additional allocations for non-GSO MSS feeder links (space-to-Earth) to support existing non-GSO MSS allocations below 1 GHz. 5 II. Informal Working Group 4: Fixed Service/Fixed-Satellite Service Sharing DRAFT PROPOSAL FOR THE WORK OF THE CONFERENCE Doc.
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