//$2nd-noi, preparations, ITU Radio Conf. AD 1-30-95, Rsld 1-31-95, FCC No. 95- 36//$ //$FOR FCC RECORD ONLY//$ "FOR FCC RECORD ONLY" FCC No. 95-36 Before the FEDERAL COMMUNICATIONS COMMISSION Washington, D.C. 20554 In the Matter of Preparation for International ) Telecommunication Union World ) IC Docket No. 94-31 Radiocommunication Conferences ) SECOND NOTICE OF INQUIRY Adopted: January 30, 1995 Released: January 31, 1995 Comment Date: March 6, 1995 Reply Date: March 21, 1995 By the Commission: TABLE OF CONTENTS Topic Paragraph No. I. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 II. BACKGROUND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5 III. DISCUSSION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7 A. Mobile Satellite Service Issues . . . . . . . . . . . . . . . . . . . . . . . . . . 8-11 1. Constraints on MSS Below 1 GHz . . . . . . . . . . . . . . . . . . 12 a. Technical Constraints . . . . . . . . . . . . . . . . . . . . . . 12-15 b. Allocation Constraints . . . . . . . . . . . . . . . . . . . . . . 16-19 2. Constraints on MSS Between 1 and 3 GHz . . . . . . . . . . . . 20 a. Technical Constraints . . . . . . . . . . . . . . . . . . . . . . . 20-31 b. Allocation Constraints . . . . . . . . . . . . . . . . . . . . . . .32-35 3. Review of Regulatory/Procedural Constraints . . . . . . . . . . 36 a. Regulatory/Procedural Constraints - MSS Below 1 GHz 37-40 b. Regulatory/Procedural Constraints - MSS Between 1 and 3 GHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41-44 4. MSS Feeder Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 a. MSS Feeder Link Regulatory Provisions . . . . . . . . . . . .45-52 b. MSS Feeder Link Spectrum Requirements . . . . . . . . . . 53 c. MSS Feeder Link Spectrum Allocations . . . . . . . . . . . . 54-55 5. MSS Spectrum Requirements/Proposed Allocations . . . . . . . . .56 a. Spectrum Requirements/Proposed Allocations - MSS Below 1 GHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56-58 b. Spectrum Requirements/Proposed Allocations - MSS Between 1 GHz and 3 GHz . . . . . . . . . . . . . . . . . . . . .59-62 6. Date of Entry Into Force of MSS Spectrum Allocations Around 2 GHz . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . 63-67 B. Other WRC-95 Issues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 1. Space Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 a. Earth Stations in the 2025-2110 MHz Band . . . . . . . 68-70 b. Fixed Satellite Service Use of 13.75-14.0 GHz Band 71-75 c. Space Services Allocations . . . . . . . . . . . . . . . . . . . 76 2. Appendices 30 and 30A . . . . . . . . . . . . . . . . . . . . . . . . . . 77-82 3. High Frequency Broadcasting . . . . . . . . . . . . . . . . . . . . . .83-85 4. Review of the Final Report of the Voluntary Group of Experts86-91 C. Planning for Future World Radiocommunication Conferences . . 92 1. 1997 World Radiocommunication Conference . . . . . . . . . . 92-94 2. Suggested Topics for Future Conferences . . . . . . . . . . . . . .95-100 D. Related Conference Preparatory Issues . . . . . . . . . . . . . . . . . 101 1. 1995 Conference Preparatory Meeting . . . . . . . . . . . . . . . .101 2. Other International WRC Planning Activities . . . . . . . . . . . .102 3. Preliminary U.S. Government Agency-Developed WRC-95 Proposals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103 4. Conference Preparatory Processes . . . . . . . . . . . . . . . . . . 104-108 IV. PROCEDURAL MATTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109-112 Recommended United States Proposals for World Radiocommunication Conference (Geneva 1995) -- Preliminary FCC Draft Appendix 1 Industry Advisory Committee Recommended Candidate Bands for Appendix 2 Additional Allocations for Below 1 GHz MSS Commenting Parties to Notice of Inquiry Appendix 3 I. INTRODUCTION 1. By this Second Notice of Inquiry (Second NOI), the Commission reviews comments and replies submitted in response to the Notice of Inquiry (Notice) in this proceeding and reviews the recommendations of the WRC-95 Industry Adivisory Committee (IAC). It also seeks comment on preliminary proposals for the 1995 World Radiocommunication Conference (WRC) and future WRCs. 2. The International Telecommunication Union (ITU) will convene WRC-95 from October 23, to November 17, 1995, at its headquarters in Geneva, Switzerland. The agenda for the conference includes substantive topics such as facilitating the introduction of global mobile-satellite services (MSS) and simplifying the international Radio Regulations. It also includes further consideration of an agenda for the next conference, WRC-97, and drafting a preliminary agenda for WRC-99. Presentation of the Commission's preliminary views on these topics is intended to stimulate discussions and is part of an overall effort to achieve early consensus on U.S. proposals to WRC-95. The preliminary proposals described below are subject to modification, however, and the Commission's further development of its proposals will include consideration of comments received in response to this Second NOI and of additional recommendations of the IAC. The Commission's ultimate recommendations for U.S. proposals will be released in a Final Report prior to WRC-95. II. BACKGROUND 3. World Radiocommunication Conference (WRC) Schedule. In the Notice, we described the ITU's adoption (in conjunction with a major restructuring) of a four-year planning cycle for WRCs -- that are now to be convened every two years to consider radiocommunication matters of worldwide character, including frequency allocations and allotment plans. Each WRC also develops, subject to the approval of Council, an agenda for the next conference and recommends a preliminary agenda for the WRC four years hence. Thus, in addition to the substantive topics to be covered at WRC-95, U.S. proposals are now being developed to propose additional items for the WRC-97 agenda and for the preliminary agenda of WRC-99, which could include initial views toward an agenda for WRC-2001. 4. Notice of Inquiry. This proceeding addresses technical and regulatory matters related to the agenda for WRC-95, and solicits information to assist the Commission in preparing cogent U.S. proposals for that conference. The initial Notice briefly reviewed the results of WRC-93 and its recommendations for WRC-95, including: review of the Radio Regulations based on the Final Report of the Voluntary Group of Experts (VGE); facilitating use of frequency bands allocated at WARC-92 to the mobile-satellite service (MSS); and review of other selected topics, including future agendas. In the Notice we invited comment on these matters and also on certain procedural matters relating to ways in which the Commission might best structure its own processes to be responsive to industry needs and, in light of the ITU's new quadrennial conference planning cycle, to ensure timely and effective planning for future WRCs. 5. WRC-95 Industry Advisory Committee. Shortly after the release of the initial Notice, the Commission established the WRC-95 IAC to develop independent private sector proposals for consideration by the Commission in parallel with this proceeding. The IAC, which is chaired by a member of the private sector and includes experts from industry, is comprised of six Informal Working Groups (IWGs) studying issues of regulatory procedures for coordination, MSS below 1 GHz, MSS above 1 GHz, MSS feeder links, space sciences, and future conference agendas. IAC and IWG meetings are announced by Public Notices and all interested members of the public are encouraged to attend. A preliminary version of the IAC Report was released on December 30, 1994, and its views have been incorporated here where appropriate. The results of the IAC's work are being fully considered by the Commission which will, in consultation with the Department of Commerce's National Telecommunications and Information Administration (NTIA) and the Department of State, develop final U.S. proposals for WRC-95. III. DISCUSSION 6. WRC-95 will be the first conference under the ITU's new conference planning cycle to discuss substantive spectrum allocation and regulatory matters. This conference represents a significant opportunity to build a foundation for advancing near and long-term United States telecommunications goals. In particular, WRC-95 is critical to a new commercial telecommunications industry -- the mobile- satellite services (MSS) industry, that includes low-Earth orbit (LEO) MSS systems. LEO systems can provide voice, data and other services at relatively low cost and will be a critical component in achieving the Commission's goals of universal service, open access and competition in the provision of services. They will also be part of a new seamless, nationwide (and eventually global) communication network. The new MSS industry also promises to stimulate significant economic growth both domestically and abroad. The proposals here are intended to facilitate implementing competitve MSS operations by easing international technical and regulatory constraints and providing additional spectrum allocations. 7. In addition to seeking comment on specific MSS proposals, we invite input on other subjects raised in the first Notice. These topics include: various space service allocation matters; review of Appendices 30 and 30A; availability of high frequency broadcasting bands (HFBC); the Final Report of the VGE; and agendas for WRC-97 and for the 1999 and 2001 WRCs. Commenters should also consider the long-range planning aspects of the ITU's conference cycle -- the two- year WRC schedule and four-year WRC planning cycle. In that regard, parties should comment on topics not addressed in the first Notice, or here, that may be appropriate for conferences beyond WRC-97. Further comment is also sought on the Commission's conference preparatory methods in light of the ITU's new conference and planning cycle. A. Mobile Satellite Service Issues 8. At WRC-95, the United States will have the opportunity to improve the use of existing MSS bands by eliminating technical, operational, and regulatory barriers; by making available adequate, useable feeder link spectrum to support MSS user links; and by adopting limited new MSS allocations. These measures should provide significant relief to MSS proponents worldwide. In the Notice, we solicited comment on these points without addressing specific details. Identification of specific concerns was left to interested parties and the IAC. Since then, ITU Radiocommunication Sector (ITU-R) Task Groups 8/3 and 4/5, that addressed MSS and MSS feeder links respectively, have concluded their work and will report to the 1995 Conference Preparatory Meeting (CPM) technical and procedural bases for consideration of MSS issues at WRC-95. For each major issue, discussion is broken down into issues relative to MSS Below 1 GHz followed by issues relative to MSS Between 1 and 3 GHz. 9. This Second NOI includes discussion and consideration of some frequency bands that are allocated exclusively for federal government use and other bands that are shared co-equally between the private sector and the federal government agencies. Opposition to preliminary non-government MSS proposals for some of these bands has been expressed by NTIA and, through NTIA's Interdepartment Radio Advisory Committee (IRAC), by the government agencies. FCC WRC-95 proposals for these bands will be the subject of detailed discussions between the Commission and NTIA. U.S. proposals to WRC-95 and to future WRCs ultimately require agreement among the FCC, NTIA and the Department of State. 10. WRC-95 provides an opportunity to review technical constraints associated with MSS frequency bands below 3 GHz and to review any associated provisions, resolutions and recommendations. Parties to this proceeding, relevant ITU-R Task Groups and the IAC have identified such constraints whose removal or modification would improve the use of frequency bands allocated for MSS. 11. Constraints identified thus far fall into general categories: 1) technical constraints, such as those that specify the maximum power a satellite beam can produce at the Earth's surface -- devised presumably to assist sharing spectrum with other services, or to determine if and where coordination with services of other administrations is required; or, constraints that limit the radiated power emitted from MSS earth stations; 2) allocation constraints on existing MSS allocations, such as those that limit MSS networks to a lower allocation status, to certain categories of service or to certain geographic areas; and 3) regulatory/procedural constraints, particularly those relating to non-geostationary orbit (NGSO) MSS coordination procedures. Our discussion on these issues is divided into two sections. Parties should bring to our attention any constraints not identified whose removal would ease use of frequencies for MSS (either below 1 GHz or between 1 and 3 GHz). 1. Constraints on MSS Below 1 GHz 12. Technical Constraints. Radio Regulation No. 608A (RR 608A) requires that the power flux density (PFD) of MSS mobile earth terminals (METs) operating in the 148-149.9 MHz band not exceed -150 dB (W/m2/4kHz) outside of the licensing administration's borders. This restraint poses both operational and regulatory difficulties. The limit as written cannot be complied with strictly, yet it appears that this is an absolute limit on the acceptable PFD of the METs instead of a coordination trigger. 13. As in the case of footnote RR 608A, RR 608B imposes a PFD limit of - 150 dB (W/m2/4kHz) for METs in the 149.9-150.05 MHz band. This limit was devised to protect terrestrial fixed and mobile services from harmful interference from MET operations. This band, however, has no terrestrial allocations, and is shared with no terrestrial services. 14. Below 1 GHz MSS proponents suggest that the United States work to remove both the RR 608A and RR 608B PFD limits. STARSYS Global Positioning. Inc. (Starsys) states that because radiofrequency transmissions do not stop at international borders, the RR 608A and 608B requirements are impractical. Starsys contends that those requirements should either be removed or apply in instances where potential interference situations cannot be resolved between administrations. The IAC proposes that the -150 dB (W/m2/4kHz) PFD limit be eliminated, and replaced with an appropriate coordination triggering mechanism. Specifically, the IAC recommends that countries wishing to implement MSS systems be compelled to coordinate MET operations with administrations falling within a specified threshold distance of the implementing country's borders. With regard to RR 608B, the IAC notes that this limit was devised to protect terrestrial fixed and mobile services from harmful interference from MET operations. This band, however, has no terrestrial allocations, and is shared with no terrestrial services. Accordingly, the IAC states that this footnote is unnecessary and recommends that it be eliminated. 15. We agree that RR 608A and RR 608B would cause unnecessary difficulties in implementing NVNG systems. We believe in this case that PFD limits would be best negotiated between affected admistrations and would likely vary depending on the circumstance. We accept the IAC's recommendation and propose to eliminate RR 608A in favor of the coordination threshold distance methodology referenced above, and we propose to modify RR 608B as set forth in Proposal No. 2/L-LEO, Appendix 1. 16. Allocation Constraints. Within the band 137-138 MHz space research and meteorological satellite (MetSat) operations have primary status. MSS has co- primary status in the 137-137.025 MHz and 137.175-137.825 band segments, and secondary status elsewhere. In the U.S., the National Oceanic and Atmospheric Administration (NOAA) has indicated it has worldwide commitments to operate in these bands at least until the year 2006 and will have continuing operations until around the year 2010. 17. The IAC recommends phasing out MetSat operations in the 137.175- 137.825 MHz segments of the 137-138 MHz band where MSS now has co-primary status. It proposes a new footnote to the international table that will provide a co- primary status for MetSats until 2006 and a secondary status until 2010. This recommendation would provide for MetSat needs while later providing less encumbered spectrum for MSS. We note that the situation is similar for the 137- 137.025 MHz portion of the band. We accept the IAC's recommendation, but also extend the IAC's proposal to the 137-137.025 MHz band, noting that the time frame for migrating MetSats has not been finalized. We invite comment on this proposal set forth in Proposal No. 2/L-LEO, Appendix 1. We also invite parties to comment on whether there is continued need for the space operation and space research alloctaions that also have co-primary status throughout the 137-138 MHz band. 18. At WARC-92 the band 149.9-150.05 MHz was allocated to the land mobile-satellite service on a co-primary basis. The IAC has recommended that this allocation be redesignated to a generic mobile-satellite service. Below 1 GHz MSS proponents have noted that services they intend to provide would extend beyond strictly "land mobile" offerings and could include maritime and possibly aeronaurical offerings. Their view is that potential service offerings should not be limited needlessly. 19. We continue to believe that generic MSS allocations afford operators maximum flexibility in introducing needed services. This is particularly important in the case of a service such as MSS that require a large initial capital outlay. Without the flexibility of generic allocations, providers may not find it economically feasible to launch systems devoted strictly to discrete applications. In addition, we note that this proposal aligns with the VGE's recommendations that service allocations be made as broadly as possible. Therefore, we accept the IAC's recommendation and propose that the 149.9 - 150.05 MHz band be allocated to MSS generically as given in Proposal No. 2/L-LEO. Comment is invited. 2. Constraints on MSS Between 1 and 3 GHz 20. Technical Constraints. In the band 1610-1626.5 MHz, RR 731E stipulates that MSS mobile earth stations (MES) shall protect stations operating in accordance with RR 730 and RR 732. To protect stations operating pursuant to RR 732, MESs are limited to an e.i.r.p. of -15 dB (W/4 kHz) in those parts of the band where such stations operate. In other parts of the band, MESs can operate up to an eirp of - 3 dB (W/4kHz). However, RR 731E does not specify whether these levels correspond to peak or mean values. 21. TG-8/3 noted that there is a need to clarify the e.i.r.p. density limits of RR 731E. Its view is that the limits should be in terms of the mean e.i.r.p. in a reference bandwidth of 4 kHz. The IAC, in its Interim Report endorses that view. 22. RR 731E also provides that mobile-satellite stations shall not cause harmful interference to, nor claim protection from stations in the aeronautical radionavigation service, stations operating in accordance with RR No. 732 and fixed stations operating in accordance with RR No. 730. MSS parties state that this provision effectively places co-primary MSS operations in a secondary status relative to stations operating pursuant to RR 732 and 730. In its Interim Report, the IAC argues that RR No. 953 provides sufficient recognition of the need to protect radionavigation services operating in the band. The MSS parties and the IAC recommend that this apparently contradictory text be deleted. 23. We intend to clarify footnote RR 731E by proposing that the e.i.r.p. density limit be expressed in terms of a "mean" rather than a "peak" value. We also agree that RR No. 953 provides appropriate and sufficient recognition of the need to protect safety services operating in accordance with RR No. 732. With regard to fixed services operating in accordance with RR No. 730, we believe that sufficient protection can be afforded to these services in the coordination process. Consequently, we propose to delete the last sentence of RR 731E and replace it with text noting that the application of RR No. 953 applies in the 1610-1626.5 MHz band. See attached Proposal No. 3/B-LEO, Appendix 1. 24. RR 733E states that stations of the radiodetermination-satellite and mobile-satellite services shall not cause harmful interference to stations of the radio astronomy service (RAS) in the 1610.6-1613.8 MHz band. MSS parties contend that RR 733E creates ambiguity in the status of 1.6 GHz MSS networks. Constellation argues that the RR 733E requirement that MSS not cause harmful interference to RAS is an apparent contradiction to MSS's primary status in the table of frequency allocations. 25. The consensus of MSS participants in the IAC is that RR 733E should be suppressed. In its Interim Report, the IAC states that RR 733E was originally adopted at WARC-87 to protect RAS when RAS had a secondary status worldwide and RDSS was being introduced on a secondary basis. The IAC claims that since RAS has been made primary in the subject bands by WARC-92, special recognition bestowed upon RAS by WARC-87 is no longer needed. Further, it claims that RR 733E creates confusion and ambiguity with regard to the status of MSS and RDSS in the 1610.6-1626.5 MHz band. It also notes that in its Big LEO Report, the FCC has adopted sufficient protection for RAS in the 1610.6-1613.8 MHz band. 26. RAS interests who participated in the IAC oppose suppression of RR 733E. The RAS community maintains that RR 733E is a flag that reminds other spectrum users of the need to use special coordination measures when operating in the 1610.6-1613.8 MHz band. They note that the special needs of RAS have been recognized by several WARCs, the VGE and the Commission in its Big LEO Report. 27. We will not propose to suppress RR 733E at this time. We note that the rules for protecting RAS we adopted in the Big LEO Report were based on those agreed to by MSS and RAS interests who participated in the Commission's Above 1 GHz MSS Negotiated Rulemaking Committee. One solution might be to suppress RR 733E and propose a new international footnote that incorporates the RAS protection rules embodied in the Big Leo Report. We request comment on this suggestion, and also invite alternative proposals. 28. RR 753F subjects the radiodetermination-satellite and mobile-satellite services in the 2483.5-2500 MHz band to the coordination and notification procedures of Res. 46. With respect to terrestrial stations, coordination is required only if the space station PFDs at the Earth's surface exceed limits established in RR No. 2566. 29. NGSO MSS proponents contend that RR No.2566 PFD values should be regarded as a "trigger" value for coordination rather than absolute limits. Further, those proponents argue that the current PFD levels should be increased, as it is likely that their systems can operate at higher PFD levels without causing interference to terrestrial systems. 30. The IAC notes that since RR 753F was adopted at WARC-92, substantial analyses have been undertaken that show the RR No. 2566 PFD limits are unduly restrictive. It contends that relaxing these limits would ease introducing NGSO MSS systems and would still provide sufficient protection for fixed terrestrial systems. Additionally, it contends that relaxing PFD limits would eliminate unnecessary coordinations that impact both MSS and fixed system providers. The IAC recommends that we propose to revise RR 753F by striking the reference to RR No. 2566 and providing increased PFD limits that are specific to RR 753F. 31. Our concern is that MSS operators not be forced into unnecessary coordinations because of restrictive or unnecessary technical limits. We also believe that, in general, absolute PFD limits should be developed between administrations in the coordination process or be based on technical justifications relative to specific sharing or coordination cases. We concur with the IAC's recommendation and incorporate it in Proposal No. 3/B-LEO, Appendix 1. Comments are invited. 32. Allocation Constraints. The 1525-1559 MHz and 1626.5-1660.5 MHz bands are allocated to MSS, but have a structure that allocates various portions of the bands to mobile-satellite service, maritime-mobile satellite service, aeronautical mobile-satellite (R) service and the land mobile-satellite service. At past conferences the U.S. has consistently proposed generic allocations for MSS. However, our efforts have not met with total success. 33. MSS proponents and the IAC recommend that the United States propose a generic MSS allocation throughout these bands with appropriate footnotes to provide safeguards and priority access for aeronautical and maritime safety services. We continue to believe that generic MSS allocations offer the most cost and spectrum efficient use of spectrum allocated to satellite services. Consequently, consistent with our action for all proposed MSS allocations, we propose to make a generic MSS allocations in the referenced band and to include the appropriate safeguards for aeronautical and maritime safety services. See Proposal No. 3/B- LEO, Appendix 1. 34. The 1675-1710 MHz band is allocated to, among other services, the meteorological-satellite (MetSats) and meteorological aids (MetAids) services on a primary basis. In Region 2 there is a co-primary allocation for MSS. However, footnote RR 735A provides that MSS shall not cause interference to, nor constrain the development of MetSats in this spectrum. 35. The IAC notes that Task Group 8/3 ITU-R Working Party 7C has completed a draft new recommendation regarding sharing between MetSats and MSS in the 1675-1710 MHz band. It points out that sharing may be possible given certain conditions relating to sharing between earth stations and space stations in the two services, co-channel separation distances and how the band is used by meteorological satellite operators. The IAC recommends proposing this band in WRC-95. We include this band as a preliminary draft FCC proposal for co-primary MSS in all three Regions. See Proposal No. 3/B-LEO, Appendix 1. We invite comment on this proposal, recognizing that the 1675-1700 MHz portion of the band is also allocated on a co-primary basis for meteorological aids for which additional sharing studies will be required. 3. Review of Regulatory/Procedural Constraints 36. The WRC-95 agenda includes a broad review of technical constraints associated with the frequency bands allocated below 3 GHz to MSS -- including associated provisions, resolutions, and recommendations. The Notice observed that this agenda item could include a wide range of subjects, including regulatory and procedural issues, and requested parties to identify and address constraints that might hinder advancement of worldwide MSS networks. The IAC and commenting parties identify regulatory and procedural constraints, specifically those relating to Resolution 46 (WARC-92) (Res. 46) and RR No. 2613. In that regard, they propose remedies to address deficiencies in these procedures. These are enumerated below and are divided into issues identified by parties for Below 1 GHz MSS and for MSS Between 1 and 3 GHz. 37. Regulatory/Procedural Constraints - MSS Below 1 GHz . Resolution 46 (WARC-92) (Res. 46) provides an interim procedure for the coordination and notification of non-geostationary satellite networks with other services in spectrum they share. Res. 46 recognizes that specific criteria and calculation methods necessary for coordination of these systems are undergoing development. Although band specific footnotes dictate where Res. 46 applies and offer some guidance for determining when coordination is necessary, parties have indicated that specific improvements to Resolution 46 would ease coordinating MSS networks and therefore, could speed introducing MSS service. 38. The IAC has identified several areas of Res. 46 for improvement that would affect Below 1 GHz MSS. Specifically, the IAC notes that Res. 46 requires coordinations to take place on the basis of identified frequency overlap of services. However, the IAC contends that even in such cases coordination may be unnecessary if certain space-to-Earth PFD levels are not exceeded. The IAC has indicated that the present requirements of Appendix 3 do not give information sufficient for calculating PFD levels precisely. It claims this could lead to an overestimation of the potential for interference into other systems and services. The IAC has recommended that the information requirements of Appendix 3 be expanded so that instantaneous PFD levels can be calculated as a function of the elevation angle from a point on the earth. We believe that more accurately determining PFD levels could reduce the number of space and terrestrial systems of other administrations with whom an administration must coordinate its proposed NVNG MSS system. We invite parties to comment on this point and to provide specific proposals for expanding Appendix 3 requirements. 39. Section 2.8 of Res. 46 requires administrations that do not agree with the bringing into use of a frequency assignment shall, within a six month period of the notification of the requesting administration, send technical details and other information on its systems upon which its disagreement is based. The IAC has stated that in the experience of its members, this provision is not being followed. It notes that without more detailed technical information on potentially affected systems, administrations cannot determine in a given situation whether coordination is actually necessary. The IAC recommends that to facilitate a more effective and efficient process, it may be useful to provide an Appendix to Res. 46 that specifies detailed information that should be provided. 40. The Radiocommunication Bureau (BR) in its analysis of Res. 46 determined that it should take into account the modulation and type of multiple access employed by NGSO systems. In addition, in Res. 46, the BR has identified technical terms for which definitions should be provided. We invite parties to identify additional information necessary to address these points. 41. Regulatory/Procedural Constraints - MSS Between 1 and 3 GHz. In its Interim Report, the IAC states that Resolution 46 may need further refinement based on experience gained since its adoption in 1992. The IAC proposes changes to the Radio Regulations associated with specific 1-3 GHz MSS allocations and relating to the regulatory procedures of Resolution 46 and it suggests the following improvements to current Resolution 46 footnotes concerning technical and operational matters and coordination: Some of the technically-oriented proposals listed below were addressed previously and are included below for completeness. Modify footnotes to replace PFD thresholds of RR 2566 to reflect different pfd thresholds for specific frequency bands identified by Task Group 2/2; Modify RR 731E to specify that the maximum e.i.r.p. density limits are based on the use of average (as opposed to peak) values; Replace Section 2.5 of Resolution 46 (coordination with terrestrial services) with new methodology to be used to determine which Administration is to be coordinated with when the PFD limit for a specific 1-3 GHz MSS allocation is exceeded; Modify Resolution 46 to provide a specific method to calculate coordination regions for purposes of paragraphs 2.1 and 2.2 which direct Administrations to effect coordination of satellite networks and stations of terrestrial networks "where assignments might be affected;" Revise Note 1 of Resolution 46, Section III to replace current definition of coordination area with a new methodology contained in Recommendation ITU-R IS 847 (except in the case of aircraft stations); 42. The IAC also identifies in general terms several areas where further improvement to Resolution 46 is in order, but it does not propose specific solutions: Current provisions fail to protect existing MSS systems from excessive interference caused by fixed service transmitters; Information provided in Appendix 3 is insufficient to perform necessary calculations relating to NGSO MSS satellite networks including: (a) orientation of satellite transmitting antenna beams necessary for PFD calculations, (b) specification of what data is to be included for purposes of coordination and agreements between Administrations set forth in Section 2.8; and (3) the type of multiple access and modulation and the maximum and average beam peak e.i.r.p./4 KHz and e.i.r.p./1 MHz for each beam should be submitted to better represent interference potential. 43. Finally, the IAC Interim Report references Reservation 79 taken by the United States and the United Kingdom to the Final Acts of WARC-92. This reservation provides that the two Administrations will not apply Resolution 46 to geostationary satellite systems in certain frequency bands, e.g., the 1525- 1559/1626.5-1660.5 MHz bands, in order to ensure that systems already in coordination (such as AMSC and INMARSAT) are not subject to additional coordination procedures. The IAC recommends that this position be clarified at WRC-95 by appropriate footnotes to the Table of Allocations. 44. We will not make specific proposals that modify Res. 46 at this time. We note that as part of its effort to simplify the Radio Regulations the VGE has suggested changes that could substantially modify Res. 46. We also note that the IAC is continuing its ongoing analysis of MSS regulatory/procedural issues and of the work of the VGE. Recognizing the continuing work of the IAC and NTIA's RCS, parties are invited to comment on the issues we identify above and to provide further comment on potential modifications to Res. 46. In particular, we note that various MSS interests suggest specific revisions to Res. 46. We request that those parties note all proposed revisions to Res. 46 and that they develop a comprehensive Res. 46 revision "package." We also invite interested parties to examine closely the potential effect of the VGE work in this regard. Mobile Satellite Feeder Links 45. MSS Feeder Link Regulatory Provisions. Current international provisions permit operation of NGSO MSS feeder links in the Fixed-Satellite Service (FSS) subject to certain regulatory provisions contained in Articles 8, 11, and 29 of the Radio Regulations -- including RR 2613. These provisions, however, do not provide a commonly agreed interpretation for accommodation of NGSO MSS feeder link networks. RR 2613 seeks to protect GSO FSS systems from unacceptable interference caused by space radiocommunication services using NGSO systems. This appears to place the burden of interference avoidance primarily on the NGSO MSS network, even where interference is the result of a later-established GSO FSS system. In addition, since unacceptable interference is fixed by agreement between administrations concerned, there needs to be provisions for correspondence and/or discussions between affected administrations to agree on what constitutes unacceptable interference. Thus RR 2613 has been interpreted as placing NGSO MSS feeder link networks at decided disadvantage. 46. Accommodating NGSO MSS feeder links in FSS bands has been addressed by parties to this proceeding, the IAC and ITU-R Task Groups 8/3 and 4/5. These groups have identified specific spectrum use, technical and regulatory issues that point to actions needed to satisfy NGSO MSS feeder link spectrum requirements. Task Group 4/5 recently concluded: "[t]here is a general recognition that both the GSO FSS satellite networks and NGSO MSS feeder link networks must have a regulatory base which permits their orderly operation without any regulatory uncertainties to their full operational life." 47. Task Group 4/5 noted that additional uncertainty results from the ITU Radiocommunication Bureau's non-application of RR 2613 in connection with its examination of systems under RR 1503. TG-4/5 noted further that since NGSO MSS feeder links and NGSO/FSS systems are not subject to Res. 46 coordination procedures, there exists no procedure for providing protection to NGSO/FSS systems, including feeder links for NGSO MSS, from existing and future GSO/FSS systems. 48. The IAC encourages consideration of changes to Article 8, as recommended by Task Group 4/5, to qualify many FSS allocations to accommodate NGSO MSS feeder link networks on a more equal basis. Specifically, in bands below 17.7 GHz, due to the difficulty of co-directional sharing of frequencies between NGSO MSS feeder links and GSO FSS networks, the IAC proposes that regulatory changes be made to give NGSO MSS feeder links priority status over GSO FSS networks in specific reverse transmission directions in certain bands allocated to FSS networks. In any FSS allocations where this priority approach could not be applied, particularly in bands now heavily used by GSO FSS systems, RR 2613 would be maintained, but modified to clarify its specific application. In addition. Res. 46 (possibly modified by WRC-95) would apply to coordination between GSO FSS and NGSO FSS networks, between multiple NGSO FSS networks and between NGSO FSS networks and terrestrial services. These revisions would be accomplished by adding suitable footnotes to the Table of Frequency Allocations in the relevant bands. 49. In bands above 17.7 GHz, where in many instances it appears that co- directional sharing between GSO FSS and NGSO MSS feeder link networks is feasible (with appropriate constraints), TG -4/5 identified a potential method for accommodating NGSO MSS feeder links in specific frequency sub-bands. This method would apply to bands used relatively lightly by GSO FSS systems. It would provide a footnote attendant to such bands that would place competing NGSO FSS networks on an equal regulatory status with GSO FSS networks. NGSO networks would be exempt from RR 2613 and would be coordinated using Res. 46 or Article 11, modified suitably. Successfully coordinated systems would have full protection rights from other users. As in the below 17.7 GHz case, these revisions would be accomplished by adding suitable footnotes to the relevant bands. 50. The IAC also noted possible revisions to Article 8 and Resolution 46 identified by TG-4/5 that would make all coordination procedures applied to GSO FSS networks also applicable to NGSO MSS feeder link networks in those bands identified for co-primary use. Specifically, Article 8 would be revised to state clearly frequency bands and directions of transmission, whether bands are limited to NGSO MSS feeder links or are shared on a co-equal basis with GSO FSS networks and whether Resolution 46 would apply. Additionally, text would be added to the Annex to Resolution 46 to cover the cases of coordination between NGSO MSS feeder link stations and GSO earth stations operating in opposite transmission directions. 51. Finally, the IAC indicates that a key factor in accommodating NGSO MSS feeder links in FSS bands is how the BR takes the current RR 2613 (Art. 29) into account when evaluating GSO FSS and NGSO MSS feeder link networks. It notes that in addition to the possible revisions discussed above, it may be necessary to modify RR 2613 and other relevant provisions to make NGSO MSS feeder link access to FSS bands easier. The IAC notes that for any allocations where NGSO MSS feeder links would operate in the space-to-Earth direction, there is a need to include appropriate satellite PFD limits to protect terrestrial networks and GSO FSS space stations operating in the opposite direction of transmission. The IAC suggests that WRC-95 decide what modifications may be required. 52. Obtaining sufficient NGSO feeder link spectrum for 1.6/2.4 GHz 'Big LEO' MSS networks is critical for the introduction of those networks in the U.S. and globally. Introducing additional such systems in, for instance, an expanded 2 GHz MSS allocation, will require even more NGSO feeder link spectrum. Consequently, spectrum must be made available for NGSO feeder link use either exclusively or on regulatory/procedural parity with GSO FSS networks. Therefore, in conjunction with the IAC we are developing specific regulatory/procedural revisions that align with the preliminary findings of the IAC and of TG-4/5 discussed above. These proposals would include footnotes to frequency bands identified for use exclusively by NGSO feeder link networks, and any associated revisionary text to Articles 11 and the Annex to Resolution 46. We invite parties to comment on the above topics and to provide specific alternative proposals to modify RR 2613 to accommodate NGSO MSS feeder links and to eliminate the current ambiguity in its general application for NGSO FSS and GSO FSS networks. 53. MSS Feeder Link Spectrum Requirements. In order to implement the NGSO MSS systems currently proposed in the United States and elsewhere, it is critical that sufficient suitable spectrum be identified and made available for use for NGSO MSS feeder links. The IAC estimated the spectrum requirements for several frequency bands in the 4-31 GHz range given in the table below. These estimates agree with conclusions reached by Task Group 8/3. Final spectrum requirements will be based on each NGSO MSS system's specific design and its operator's service objectives. The table assumes that the satellite systems' antennas will be able to use dual polarization for the frequency bands below 16 GHz which serves to reduce the amount of spectrum required. Table 1. Current Estimates for Feeder Link Spectrum Requirements for First Generation NGSO MSS Systems in the 1-3 GHz Band Frequency Range Spectrum (each direction) Sharing Possible* Spectrum (each direction) No Sharing 4-8 GHz 200 MHz* 400 MHz* 8-16 GHz 200 MHz* 400 MHz* 16-30 GHz 200 MHz** 500 MHz ** *Use of dual polarization assumed **Dual polarization not feasible The commenters generally express support with the above estimates. Further comment on this matter is welcome. 54. MSS Feeder Link Spectrum Allocations. The following frequency bands have been identified by the IAC and the Commission staff as potentially suitable for sharing by NGSO MSS feeder links in the direction(s) indicated. Some bands are identified as candidates for U.S. proposals. See Proposal No. 1/FL-MSS. Other bands might remain under consideration at this time. Certain bands are identified as being candidates for pairings with other bands in the table. We request comment on these pairings. In cases where one part of a proposed pairing has more spectrum than the other, but has relatively high existing service use, we invite comment and proposals on alternatives (e.g. band segmentation in the larger band; specific frequency pairings; etc.) for linking the two bands. Additional comments are requested on all of the candidate bands, including their sharing possibilities. Interested parties should also note bands to which the regulatory provisions discussed in the preceding section could apply. 55. Some bands are identified for feeder link transmissions using reverse band working (RBW). Generally, these are bands below 17.7 GHz. Task Group 4/5 studied the possibility of reverse band operation of NGSO MSS feeder links in FSS bands. It concluded that RBW appeared promising in the C and Ku bands. For the C and Ku cases, Task Group- 4/5 developed NGSO PFD limits (applied at the geostationary orbit) designed to protect GSO networks and eliminate the need to coordinate RBW feeder links. The limit is: 4 - 8 GHz (C band) -168 dB(W/m2/4 kHz) 10 - 16 GHz (Ku band) - 168 dB(W/m2/4kHz) If we finalize proposals for RBW bands we would also propose to adopt these limits and consequently to make the appropriate modifications to Section V. of Article 28 (RR). These limits would apply only to those bands identified for RBW use. We request comment on these limits. Parties who disagree with these PFD limits for NGSO MSS feeder links should provide a technical basis for alternative limits. Table 2. Candidate Bands for NGSO MSS Feeder Link Spectrum1 Frequency Band (GHz) Bandwidth (MHZ) & Direction Current Primary Allocations Sharing Potential Co-Directional Bi-Directional 4.5-4.82 300  FSS, FS, MS3 Sharing not feasible Sharing feasible 5-5.254,5 250  ARNS6, FSS Sharing feasible Sharing feasible 5.85-5.925 75  FSS, FS, MS 6.425-6.525 100  FSS, FS, MS 6.525-6.775 250  FSS, FS, MS, BA Sharing not feasible Sharing feasible 6.525-7.075 550  FSS, FS, MS, BA Sharing not feasible Sharing feasible 10.7-10.957 250  FSS, MS, FS Sharing not feasible Sharing feasible 11.2-11.457 250  FSS, MS, FS Sharing not feasible Sharing feasible 12.75-13.25 500  FSS, MS, FS Sharing not feasible Sharing feasible 15.4-15.78 300  FSS, ARNS9 Sharing feasible Sharing feasible 17.7-17.810 100  FSS, FS, BSS Needs study Needs study 17.8-18.1 300  FSS, FS, MS Needs study Needs study 18.1-18.4 300  FSS, FS, MS Needs study Needs study 18.4-18.9 500  FSS, EES, FS, MS, SR11 Sharing feasible Sharing possible, if paired with a lower band 18.9-19.2 300  19.2-19.712 500  FSS, FS, MS Sharing feasible Sharing possible, if paired with a lower band 19.7-20.1 400  FSS,MSS(R2) 24.75-25.25 500  FSS (R2&3) 27.5-28.5 1000  FSS, FS, MS Sharing feasible Operationally impracticable 28.5-29.0 500  FSS, FS, MS Sharing feasible Operationally impracticable 29.0-29.5 500  29.5-29.9 400  FSS, MSS 29.9-30 100  FSS, MSS Notes to Table 2. * Indicates candidate band is attached as a preliminary proposal. New footnotes proposed in the preceding feeder link regulatory section would apply.  = uplink (Earth-to-space) direction  = downlink (space-to-Earth) direction ARNS: Aeronautical Radionavigation Service BA: Broadcast Auxiliary Service FS: Fixed Service FSS: Fixed-Satellite Service MS: Mobile Service MSS: Mobile-Satellite Service SR: Space Research Notes to Table 2., continued Note 1 - Task Group 4/5 analyzed sharing constraints extensively. See ITU-R Document 4-5/TEMP/SUM, Geneva 1994. Note 2 - Task Group 4/5 noted that sharing was feasible if the frequency band was not being used by fixed troposcatter systems. However, the 4660-4685 MHz band portion of the 4.5-4.8 GHz band is under consideration in ET Docket No. 94-32, where it has been identified for potential fixed and mobile service use. See Notice of Proposed Rulemaking, (Spectrum Transfer Notice) ET Docket No. 94-32, 9 FCC Rcd 6779 (1994). Therefore, it is unlikely that we would propose the 4.5-4.8 GHz band for feeder link use. Note 3 - See ITU-R Document 8-3/TEMP/54-E, Geneva, 1994, for an analysis of frequency sharing with mobile services in this band. Note 4 - The 5-5.25 GHz band is proposed to be paired with the 6.825-7.075 GHz band. Note 5 - The 5-5.25 GHz band is allocated to the aeronautical radionavigation service and in accordance with RR 796, the Microwave Landing System (MLS) has precedence over all other uses of the band. Currently, MLS occupies the 5030-5091 MHz portion of the band and is planned to extend its use up to 5150 MHz. Task Groups 8/3 and 4/5 have analyzed the sharing situation between MLS and NGSO MSS feeder links and have indicated that sharing may be feasible given certain constraints. However, Task Group 4/5 recommends that, given the safety aspects of MLS, the two services use non-overlapping spectrum. Additionally, Task Group 4/5 notes that MLS could be 'reorganized' in the future into the 5000-5120 MHz portion of the band. This would yield 130 MHz of non-overlapping, contiguous spectrum that could be used for NGSO MSS feeder links. See ITU-R Document 4-5/Temp/38 (Rev.1) at 2.1.3.8.1.1. U.S. delegation members, including those from the FCC, NTIA, the Department of State, and the FAA did not oppose these conclusions. Note 6 - See ITU-R Document 8-3/TEMP/55-E, Geneva, 1994, for an analysis of frequency sharing in this band. Note 7 - The 10.7-10.95 and 11.2-11.45 GHz bands are proposed to be paired with the 12.75-13.25 GHz band. Note 8 - Proposed to be paired with spectrum in the 18.9-19.2 GHz band. Note 9 - See ITU-R Document 8-3/TEMP/54-E, Geneva, 1994, for an analysis of frequency sharing in this band. Note 10 - Footnotes RR 869 and 870A limit the use of the band by the fixed-satellite service to feeder links for the broadcasting- satellite service. If NGSO MSS feeder links are permitted in these bands those footnotes would need to be suppressed or modified. Note 11 - The 18.6 - 18.8 GHz band is allocated to the Earth exploration-satellite service in Region 2. Note 12 - We proposed to pair the 19.2-19.7 GHz band with 500 MHz of spectrum within the 27.5 - 29.5 GHz band. The most logical pairing would be with the 29.0-29.5 MHz band. However, the Commission is engaged in other rulemaking proceedings that could affect the availibility of the 29.0-29.5 MHz band for feeder links. Therefore, we request comment on both the 29.0-29.5 GHz and alternate 500 MHz segments within the 27.5-29.5 GHz range for pairing with the 19.2-19.7 GHz band. We include the 29.0-29.5 MHz band as an example '500 MHz' proposal. Further details on the constraints associated with these bands are identified in the IAC Interim Report. Additionally, parties should take account of the proposed regulatory provisions described previously that apply to candidate bands as indicated in footnotes to Table 5. 5. MSS Spectrum Requirements/Allocations 56. Spectrum Requirements/Proposed Allocations - MSS Below 1 GHz. Non-voice, non-geostationary MSS proponents who intend to operate below 1 GHz have indicated a need for at least an additional 10 MHz of spectrum, available for network use by the year 2000, and for an additional 13-20 MHz by the year 2010. The IAC identified candidate bands that may be suitable for these operations and recommends seeking an allocation of 10 MHz of spectrum at WRC-95. The bands it identified are listed in the table in Appendix 2. 57. While the proposed bands total more than 10 MHz, the identification of a number of candidate bands will likely be necessary to ensure the worldwide allocation of 10 MHz at WRC-95. Note that the IAC has prioritized candidate bands into three categories. They are: Priority One bands the IAC considers as most desirable for allocation in the near term and on a worldwide basis; Priority Two bands where NVNG MSS can share with existing services, however, achieving worldwide allocations might be difficult; and Lowest Priority bands used heavily in the U.S. However, the nature of existing operations might permit sharing. The priorities above are the IAC's assessment of the potential for using the bands it identifies. We note that all of the 'Priority One' bands for which the IAC has submitted draft conference proposals are either allocated exclusively for government use or for shared government - non-government use. NVNG MSS use of these bands has not been coordinated or agreed upon among the FCC, NTIA or government agency users. Therefore, it is premature to indicate that these bands will be U.S. proposals to WRC-95. We invite parties to comment on potential NVNG MSS allocations in the bands in the table, particularly the 'Priority One' bands, noting that, with the exception of the 399.9-400.05 MHz band, such use has not been coordinated or agreed upon between the FCC and NTIA. We also invite parties to identify and give consideration to potential below 1 GHz NVNG MSS allocations in non-Government spectrum. Additionally, recognizing that it may be difficult to agree on U.S. proposals for allocations in spectrum with primary Government allocations, parties should attempt to identify potential allocations that might use both Government and non-Government spectrum. 58. Two of the IAC's candidate bands are being included as preliminary FCC proposals for WRC-95. One, the 399.9-400.05 MHz band has an operation that will cease by 1 January 1997. The IRAC's RCS also includes this band as a preliminary WRC-95 proposals for NVNG MSS. The other, the 137-138 MHz band is used in the U.S. by NOAA and DoD for MetSats operations. However, Congress has mandated that those entities consolidate their MetSat programs. This convergence of programs is still under discussion. Consequently, the time frame during which MetSats might migrate from this band is as yet uncertain. Discussions with NTIA on the eventual availability of this band continue. We invite further comment on including this band as a FCC proposal for a NVNG MSS allocation at WRC-95. 59. Spectrum Requirements/Allocations - MSS Between 1 and 3 GHz. There are numerous existing or proposed MSS networks worldwide. These networks will compete for approximately 200 MHz of MSS spectrum currently available on a worldwide, co-primary basis. In the IAC, a methodology for converting traffic projections for MSS to needed spectrum was developed. Using that methodology, the IAC arrived at the following spectrum requirements, given in Table 4, for handheld terminal, NGSO MSS. Table 4. MSS Spectrum Requirements by the Year 2005. (Handheld Terminal, NGSO MSS) Market Estimate Subscribers (Millions) Equivalent Spectrum Requirement (each direction) LOW 4.11 19.3 MHz LOW 6.0 28.1 MHz MEDIUM 15.0 70.2 MHz HIGH 22.0 103 MHz 60. The estimates in Table 4 are for NGSO networks only. Prior to WARC- 92, the Joint International Working Party for WARC-92 projected that between 88.8 MHz and 164.1 MHz of spectrum in each direction would be needed for GSO MSS by 2010. Recently, ITU-R Task Group 8/3, based on inputs from Inmarsat and others, has produced forecasts for MSS spectrum requirements to the year 2005. The Inmarsat material input to Task Group 8/3 forecasts a minimum of 61.3 MHz in each direction and a realistic requirement of 105.7 MHz in each direction needed by the year 2005. Compared to other estimates, the Inmarsat-based forecasts are revised downward. This is because Inmarsat factored in a potential overlap in providing land mobile-satellite services (LMSS) between GSO and NGSO MSS networks. Nevertheless, a considerable amount of spectrum for GSO MSS will be required. The IAC estimates that when all forecasts are taken into account, a total of 150-300 MHz of MSS spectrum will be required by the year 2005. 61. The table below lists candidate bands for future MSS spectrum allocations. This table includes both potential "new" MSS allocations and bands listed earlier in the Allocation Constraints section. Bands that we intend to propose for allocation at WRC-95 at this juncture are noted and appear in Proposal No. 1/B-LEO Appendix 1. The 1675-1710 MHz band is listed in the table, however, discussion is continuing between the FCC, NTIA and the National Oceanographic and Atmospheric Administration on conditions for access to this band continue. We request comment on these and any other bands between 1 and 3 GHz that may be suitable for MSS . Table 5. Candidate Bands for Worldwide MSS Spectrum Allocations Band (MHz) Bandwidth & Direction Notes Use Summary Draft FCC Proposal? 1675-1710 35 MHz Make primary worldwide. MetAids, Metsat, fixed and mobile Yes 1525-1559/ 1626.5-1660.5 34 MHz Make Generic, Primary MSS in all 3 Regions Sharing with fixed in certain countries under RR 730; some sub-bands subject to sharing. Yes 34 MHz 1985-2025/ 2165-2200 35 MHz Potential Domestic Allocation Adjustment Fixed Mobile Yes 35 MHz Key to Table:  = proposed Earth-to-space transmission direction  = proposed space-to-Earth transmission direction 62. Parties should note that the attached 1-3 GHz MSS proposals (No. 1/B- LEO) incorporate proposed adjustments to current 2 GHz MSS allocations made at WARC-92. These adjustments reflect the Commission's allocation of the 1850-1990 MHz band for Personal Communication Services (PCS), and its effect on our ability to use that spectrum for MSS in the United States. Specifically, WARC-92 made a secondary allocation for MSS in the 1930-1970 MHz band for Region 2 only. We are proposing to eliminate this allocation in the 1930-1945 MHz portion of this band. WARC-92 also made a primary allocation for MSS in the 1970-1980 MHz band for Region 2 only. We are proposing to drop the status of MSS in this band to secondary. This would reflect the current PCS use in the U.S. but could allow some MSS operation. Finally, we propose to eliminate the primary MSS allocation in the 1980-1985 MHz band in all three Regions. This last proposal leaves a 5 MHz primary MSS overlap with the our domestic PCS allocation. Although this spectrum may not be useable for primary MSS in the U.S., it may be useable in other parts of Region 2 and it provides additional spectrum for coordinating spectrum use between administrations international MSS networks. We invite comment on this proposed MSS allocation structure. 6. Date of Entry Into Force of MSS Spectrum Allocations Around 2 GHz. 63. At WARC-92, different dates of entry into force (dates of entry) of 2 GHz MSS allocations were agreed upon. Footnote RR 746C specifies a date of entry of 1 January 1996 onwards for the United States, whereas RR 746B specifies a date of entry of 1 January 2005. In Task Group 8 /3, it was noted that, with new interest in implementing 2 GHz MSS systems on the part of administrations other than the United States, this difference in dates of entry could have an adverse impact on implementing non-U.S. MSS networks. 64. Parties take positions on both sides of the date of entry issue. Motorola opposes advancing the date of entry. Motorola argues that the U.S. should not support advancing the date of entry, because that action would be inconsistent with the use of 2 GHz spectrum for Future Public Land Mobile Telecommunication Systems (FPLMTS)-compatible satellite systems. Motorola states that it would support moving the U.S. date in RR 746C to 1 January 2005 so that all potential MSS operators would face identical constraints. 65. COMSAT Mobile Communications (COMSAT) argues that the U.S. should propose moving the RR 746B date of entry forward to be compatible with the U.S. date (1996-2000). COMSAT contends that there will likely be early saturation of MSS bands, therefore, it is urgent that WRC-95 provide access to 2 GHz bands around the year 2000. COMSAT also maintains that early access to 2 GHz spectrum would facilitate provision of a FLMPTS-compatible satellite component worldwide. 66. The Commission's IAC recommends that the United States propose no change to its RR 746C date. It takes no position on advancing the RR 746B date. However, it does recommend that the U.S. adopt a position supporting a transition plan to gradually introduce MSS into 2 GHz bands sometime prior to the year 2005. 67. We note that although the current 1996 U.S. date of entry of RR 746C affords the United States maximum flexibility in implementing U.S.-based MSS networks, advancing the 2005 date of RR 746B could facilitate early introduction of global MSS networks -- including future networks in which U.S. entities may have interests. Therefore, we believe that consideration of the differing dates of entry into force of 2 GHz MSS allocations should be in the context of an overall approach to making available 2 GHz MSS spectrum, including potential expansion of existing allocations as proposed elsewhere in this document. Therefore, we will not make a specific proposal at this time. B. Other WRC-95 Issues 1. Space Services 68. Earth Stations in the 2025-2110 MHz Band. WARC-92 upgraded to primary the status of the space research, space operation, and Earth exploration- satellite services in the 2025-2110 MHz band. This band is also allocated internationally for primary fixed and mobile use. In the United States, the 2025-2110 MHz band is allocated to the mobile service on a primary basis and is generally used for electronic news gathering purposes. To facilitate shared use of this band, item 2.2 of the WRC-95 agenda provides for consideration of power limits for Earth stations in the Earth exploration-satellite, space research, and space operation services. 69. Currently, RR 2541 specifies power limits for space services and Earth stations operating in a number of frequency bands shared by space and terrestrial services. The 2025-2110 MHz band, however, is not included in this provision. Accordingly, ITU-R Joint Ad Hoc Working Party (JWP) 7B/9D was tasked with developing appropriate power limits for Earth stations operating in this band. Recently, JWP 7B/9D reached a consensus that the power limits given in No. 2541 are appropriate to apply to the 2025-2110 MHz band. The IAC and NTIA's RCS have developed draft language to implement these power limits by adding No. 2544 bis to Article 28 of the Radio Regulations to read as follows: ADD 2544 bis (6) As an exception to the limits given in No. 2541, the equivalent isotropically radiated power (e.i.r.p.) towards the horizon for an earth station in the Earth exploration-satellite service, space research service and space operation service in the 2025-2110 MHz band shall not exceed +XXdBW in any 4 kHz band. 70. The IAC continues to address this subject. CTA, Incorporated, the only commenter to address this issue, supports consideration of guidelines for sharing within this band. We renew our request for comments on this issue -- specifically whether the RR 2541 limits are appropriate. 71. Fixed Satellite Service Use of the Band 13.75-14.0 GHz. WARC-92 made a primary allocation for FSS in the 13.75-14.0 GHz band. This band is shared with the radiolocation and radionavigation services and is available on a secondary basis for the space research, Earth exploration-satellite, and standard frequency and time- signal satellite services. To facilitate shared use of this band, WARC-92 adopted footnote RR 855A to the international Radio Regulations that specifies technical criteria for primary services in this band. Resolution 112 (WARC-92) resolves that the criteria specified in RR 855A be studied and that studies be conducted on the technical compatibility between FSS and secondary allocations in the 13.75-14.0 GHz band. 72. ITU-R Task Group 4/4 has completed its technical studies relative to RR 855A and has confirmed that the RR 855A values are appropriate. In Recommendation ITU-R S.1068, it provides further details on FSS sharing with the radiolocation and radionavigation services. In addition, WARC-92 adopted footnote RR 855B granting equal status with FSS operations to geostationary space stations in the space research service that were advance published prior to January 31, 1992. Radio Regulation 855B also stipulates that FSS stations shall not cause harmful interference to non-geostationary stations in the space research service prior to January 1, 2000. 73. ITU-R Task Group 7/3 studied the compatibility between FSS and other services in the 13.75-14.0 GHz band taking into consideration RR 855B. The group developed criteria necessary to provide protection to non-FSS services. Task Group 4/4 developed constraints on FSS operations to provide the necessary protection. As a result of their efforts, the two groups developed recommendations ITU-R S.1069 and ITU-R SA.1071 setting forth the sharing criteria for the band. In considering Item 2.3 on the WRC-95 Agenda, the CPM determined that all studies necessary to satisfy Resolution 112 have been performed and that the above Recommendations contain the appropriate sharing criteria. 74. COMSAT World and Hughes support the work of Task Groups 4/4 and 7/3 and urge approval of their conclusions. The IAC and NTIA, on behalf of participating federal government agencies, concur and they have developed draft proposals consistent with these conclusions. These draft proposals modify RR 855A and 855B to eliminate references to Resolution 112 and future studies on technical criteria. They add to RR 855A a reference to Recommendation ITU-R S.1068 and add references to Recommendations ITU-R S.1069 and ITU-R SA.1071 to RR 855B. Finally, their draft proposals suppress Resolution 112 as no longer necessary. 75. We note that there appears to be general agreement on the values affirmed by the relevant ITU-R groups and on the suppressions of Resolution 112. As an initial matter, we accept the IAC's recommendation on this issue and incorporate it as Proposal No. 4/SS, Appendix 1. However, we invite comment, noting that RR 855A stipulates that after 1 January 2000, non-geostationary space stations in the space research and Earth exploration-satellite service will operate on a secondary basis relative to the fixed-satellite service. 76. Space Services Allocations. Agenda item 3 for WRC-95 provides for consideration of Resolution 712 (WARC-92), with a view towards taking action at WRC-97. The following issues relating to space science services are considered under Resolution 712: (1) providing worldwide primary allocations for the Earth- exploration and space research services in appropriate bands within the 8-20 GHz range; (2) satisfying inter-satellite service requirements for up to 50 MHz of spectrum near 23 GHz; (3) providing up to 1 GHz of spectrum for space-based active Earth sensors around 35 GHz; and 4) including certain CCIR-approved space science service coordination parameters in Appendix 28 of the Radio Regulations. Technical studies are currently underway regarding each of these issues, including spectrum requirements, the allocation status of these services in various bands, and the feasibility of sharing between services. No parties commented on this issue in response to the Notice. A detailed discussion of these issues and the status of considerations is contained in the IAC's Interim Report. Parties are invited to address these issues, bearing in mind that substantive action is planned for WRC-97. 2. Appendices 30 and 30A 77. WRC-95 agenda item 3a provides for consideration of Appendices 30 and 30A (Plans and procedures for the broadcasting-satellite service and associated feeder links, respectively) for Regions 1 and 3 in response to Resolution 524 (WARC- 92). WRC-95 is directed to review related work being carried out in ITU Study Groups, with WRC-97 taking appropriate substantive action. At WRC-93, the U.S.'s primary concern was that the Region 2 Plan not be affected by modifications to the Plans of other Regions. This concern is reflected in WRC-93's direction that particular attention be given to 'resolves 2' of Resolution 524. Item 3a also provides for consideration of Appendix 30B. This would allow an administration to implement its FSS allotment with the same satellite used for its BSS allotment under Appendices 30 and 30A. In addition, the VGE proposes changes that affect the content and format of Appendices 30 and 30A. 78. The IAC has addressed both the VGE's Final Report as it relates to this subject and WRC-95 agenda item 3a. In its Interim Report, the IAC notes that VGE Recommendation Nos. 2/3, 2/5, and 2/6 would eliminate the Plans for BSS and associated feeder links and disperse their provisions and procedures throughout the Radio Regulations. It questions whether this is a useful 'simplification' and maintains that it would be premature to apply the VGE's recommendations since WRC-95 will consider major revisions to Appendices 30 and 30A. Furthermore, the IAC suggests that the recommendations might be used as a model for revisions of the Appendices at WRC-97. 79. The IAC also states that in determining the impact on the Region 2 Plans of revising the Region 1 and 3 Plans (and associated inter-Regional sharing criteria), it is critical to note that BSS systems actually implemented in Region 2 differ from those described in the Region 2 Plan. These differences, it contends, could make operating BSS systems in Region 2 more vulnerable to interference from BSS and FSS systems in the other Regions. The IAC maintains that unless modifications are made to the Region 2 Plan to reflect systems being implemented, Regions 1 and 3 would not be required to provide inter-Regional protection. In this regard, it observes that it might also be desirable to modify inter-Regional sharing criteria on a reciprocal basis. 80. To preserve the United States's interests, the IAC recommends the following actions: oppose adoption of VGE Recommendation Nos. 2/3, 2/5 and 2/6; participate actively in options for revising the Plans in Regions 1 and 3, with two objectives: 1) to ensure equitable assignments for U.S. territories in Region 3; 2) to protect Region 2 assignments as implemented from revised assignments for Regions 1 and 3; and not oppose the adoption of new inter-Regional sharing criteria or new orbital assignments that permit co-location of BSS and FSS assignments (Appendix 30B aspect). 81. In comments responding to the Notice, Hughes notes that U.S. BSS systems would be vulnerable to interference from systems in Regions 1 and 3. Both Hughes and USSB comment that the U.S. should participate in studies being undertaken pursuant to Resolution 524 by ITU-R Working Party 10-11S and CPM- 95. Hughes also remarks that the impact of taking account of Appendix 30B in revising the Plans of Regions 1 and 3 should be negligible. 82. We request further comment on the above including the IAC's recommendations. Parties should note the work being conducted by ITU-R Working Party 10-11/S in preparation for substantive actions at WRC-97. Specifically, suggestions have been made to change Appendix 30/30A and Resolution 42 to modify inter-regional sharing criteria as well as service implementation procedures and methods to provide additional flexibility to accommodate new direct broadcast satellite (DBS) technologies and services. Comment is also requested on whether the U.S. should propose to WRC-95 that WRC-97 be given appropriate limited competence to revise the Radio Regulations to ensure that these recommendations apply to Region 2. 3. High Frequency Broadcasting 83. WRC-95 Agenda Item 3c addresses the availability of High Frequency Broadcasting (HFBC) bands allocated at WARC-79 and WARC-92. The use of these bands was conditioned on the development of an acceptable worldwide planning system which has proven to be a difficult task due to excessive demand and limited HFBC spectrum. Since the Notice, the ITU has established Task Group 10/5 for the purpose of addressing planning procedures. 84. Task Group 10/5 has made significant progress. In its draft report, the group examines planning procedures associated with broadcasting and other radio services. It enumerates guiding principles for a new planning procedure and describes the procedure for a new, simple, and flexible process for planning the HFBC bands. This approach is premised on the concept of seasonal coordination carried out at the regional level. Coordination is based on an agreed upon technical evaluation of the incompatibilities in the proposed broadcasting schedules. This technical evaluation is based on existing ITU-R Recommendations. This approach will be refined at subsequent meetings of Task Group 10/5 scheduled after WRC-95. The direction Task Group 10/5 takes appears to be consistent with U.S. interests. Although the WRC-95 agenda does not provide for substantive action on this issue, Task Group-10/5's final report will likely be the basis for substantive action at WRC- 97. We invite further comment on the work of Task Group 10/5 and alternate approaches to facilitating the availability of HFBC bands. 85. Comments were received on an additional item regarding the HFBC issue. Under the current WARC-92 constraints, only Single Side Band (SSB) transmissions can be used in this additional spectrum. This matter may be linked to the approval of a planning procedure at WRC-97. At present, SSB receivers are not widely available and represent a very small fraction of the HF receiver market. Also, the SSB receivers that are available are prohibitively expensive in many areas of the world. Commenters indicate that with the advent of new technologies, such as digital audio broadcasting (DAB), it may be unwise to impose a SSB standard without first giving further consideration to better long term alternatives. We request comments on the requirement of SSB transmissions in the new HFBC bands. 4. Review of the Final Report of the Voluntary Group of Experts 86. The Voluntary Group of Experts (VGE) was tasked by the ITU in 1989 to simplify the international Radio Regulations (RR) without making substantive alterations thereto. The VGE divided its work into three areas: (1) Task 1 - Allocation Matters; (2) Task 2 - Procedural Matters Related to the Use of Frequencies; and (3) Task 3 - Operational and Administrative Matters. The VGE's Final Report will be reviewed by WRC-95, pursuant to item 1 of the WRC-95 agenda. WRC-95 will further undertake to make appropriate revisions to the Radio Regulations and to provide a timetable for implementation of any outstanding recommended actions. The VGE recommends in the Final Report specific revisions to sections of the Radio Regulations and general guidelines for future development and administration of the Radio Regulations. The U.S. generally supports the VGE and its efforts to simplify the international Radio Regulations and associated provisions. 87. In the Notice, we described the general approaches of the VGE for simplifying the Radio Regulations and invited parties to comment on those approaches and on specific VGE recommendations. We further invited parties to identify foreseeable difficulties with any aspect of the VGE's work and, where possible, to propose alternative approaches and solutions. The IAC has also been asked to review the VGE's Final Report. NTIA's IRAC and its subordinate group, the Radio Conference Subcommittee (RCS), are also reviewing the VGE's work and developing preliminary draft U.S. proposals for WRC-95. Their preliminary views were shared with the IAC. 88. Several parties express concern that full consideration of the VGE Report could consume too much of the time and resources of WRC-95 at the expense of affording full treatment of the other issues on agenda, most notably MSS. AMSC comments that "substantial danger exists that VGE deliberations will dominate WRC-95." Further, some recommend that consideration of the VGE Final Report be deferred altogether until a future conference. AMSC suggests that WRC-95 categorize the VGE issues according to service and then place specific issues for consideration on appropriate future WRC agendas. Other commenters, such as Comsat Mobile Communications, propose that the VGE Final Report be addressed in a separate committee at WRC-95 so work can continue simultaneously on the other WRC-95 agenda items. The Commission shares the commenters' concerns that adequate attention can be devoted at WRC-95 for considering issues besides the simplification of the Radio Regulations. Parties should note that it has not yet been determined to what extent and how WRC-95 or subsequent conferences might consider the VGE Final Report. That decision will likely develop at ITU meetings preparing for WRC-95 and will be finalized at the conference itself. 89. Other parties offer comment on specific VGE proposals. Aeronautical Radio, Inc. (ARINC) opposes VGE Recommendation No. 1/7 to allocate frequencies to more broadly defined service categories. COMSAT World expresses concern that the VGE's "simplification" of notification, coordination, and registration procedures might serve to hinder implementation of satellite-based telecommunications service. The comments reflect differing views on whether the VGE's proposed Simplified Radio Regulations would improve the current interim procedures for coordination and notification of NGSO satellite networks contained in Res. 46. We invite parties to submit any further comments on these identified issues or other concerns regarding the VGE's Final Report. 90. The IAC concludes in its Interim Report that the VGE has successfully carried the majority of the provisions of the international Radio Regulations forward to the Simplified Radio Regulations without change to the present registration process for frequency assignments. The IAC also expresses general agreement with the preliminary views on this topic expressed by the federal government in the NTIA Draft Proposals. Specific variances from the views of the VGE and the federal government are described in the Interim Report. 91. Commission staff is continuing its own review of the VGE Final Report and is evolving preliminary draft U.S. proposals on this topic. In conjunction with these efforts, it will take into account the further views expressed by the IAC, the commenters, and NTIA. Parties are invited to comment on the IAC's recommendations and other VGE issues. C. Planning for Future World Radiocommunication Conferences 1. 1997 World Radiocommunication Conference 92. In keeping with the ITU's new four-year planning cycle for WRCs, the 1993 conference developed a preliminary agenda for WRC-97. In addition to urgent issues to be identified by WRC-95, the preliminary agenda provides for the consideration of the following items at WRC-97: (1) frequency allocations and regulatory aspects related to MSS including allocations for feeder links; (2) allocation issues for the space services -- specifically allocation of bands above 50 GHz to the Earth exploration-satellite (passive) service and allocations and associated provisions for the 399.9-400.05 MHz band; (3) HF bands allocated to the broadcasting service; (4) allocation issues concerning the aeronautical mobile (R) service in the band 136- 137 MHz per Resolution 408 (Mob-87); (5) revisions to Chapters IX and N IX in accordance with Resolutions 200, 210, 330, 331 (Mob-87) taking into account the pending implementation of the global maritime distress and safety system (GMDSS); (6) use of Appendix 18 VHF frequency band for maritime mobile communications; (7) Article 61 relating to the priority of communications in the maritime mobile and the maritime mobile-satellite services; and (8) Appendices 30 and 30A for Regions 1 and 3 in response to Resolution 524 (WARC-92). 93. The preliminary agenda also provides for consideration, at WRC-97, of the following outstanding resolutions and recommendations from past conferences: Resolution 60 (WARC-79) on revision of propagation information used in Appendix 28; Resolution 211 (WARC-92) on use by mobile service of frequency bands 2025- 2110 MHz and 2200-2290 MHz; Resolution 710 (WARC-92) on primary service requirements for Met-Sat and Earth exploration-satellite services in band 401-403 MHz; and Resolution 712 (WARC-92) on issues dealing with allocations to space services which were not placed on the WARC-92 agenda; Recommendation 66 (WARC-92) on studies of maximum permitted levels of spurious emissions; Recommendation 621 (WARC-92) on implementation of wind profiler radars; Recommendation 711 (WARC-79) on coordination of Earth stations; and Recommendation 715 (Orb-88) on multi-band and/or multiservice satellite networks using the geostationary-satellite orbit. Finally, WRC-97 is directed to recommend to the Council items for inclusion on the WRC-99 agenda and to provide its views on a preliminary agenda for the 2001 conference. 94. WRC-95 will review the WRC-97 preliminary agenda and recommend a final agenda to Council for its approval. WRC-95 will also recommend a preliminary agenda for WRC-99 and give its views on potential agenda items for future conferences. 2. Suggested Topics for Future Conferences 95. In our first Notice in this proceeding, we remarked on the large number of issues identified on the preliminary agenda for consideration at WRC-97 and asked commenters to identify items that could be postponed for consideration at a future conference. Parties were also asked to address any additional items not appearing on the preliminary agenda that would be mature for consideration in 1997. In response, some issues for possible consideration at future conferences were submitted. It should be initially noted that, with respect to WRC-97, there is broad agreement among the commenters that WRC-95 will be unable to fully accomplish all of the tasks on its broad agenda and that several of the issues will carry over to the 1997, and perhaps even to the 1999 conference. Many parties therefore advocate limiting the placement of new items on the WRC-97 agenda to permit resolution of issues pending from WRC-95 -- particularly those relating to MSS allocations. The Intelligent Vehicle-Highway Society of America (IVHS America) seeks to add consideration of international IVHS (now known as Intelligent Transportation Systems or ITS) spectrum allocation issues to the agenda. Teledesic recommends that WRC-97 address Recommendation 719 (WARC-92) concerning multiservice satellite networks using GSO in conjunction with its consideration of related Recommendation 715 (Orb-88). AT&T seeks an allocation in 5.2 GHz band for mobile service on a worldwide basis to accommodate its proposed high-speed wireless data networks. 96. The IAC is also considering the subject of future conference agendas. The section of its Interim Report that is devoted to this topic has not yet been fully developed, however, and its discussion is therefore quite preliminary. Further comment is welcome on the IAC's preliminary discussion. The IAC preliminarily recommends that WRC-97 consider the following additional items to facilitate MSS above 1 GHz: (1) continuing revision of Res. 46 based on experience gained from operating and coordinating NGSO MSS systems; (2) reviewing the effect of RR 2613 on these systems; (3) reviewing the constraints against MSS service link spectrum at 1-3 GHz to ensure availability of sufficient amounts to accommodate future growth; and (4) reviewing the amount of spectrum for NGSO MSS feeder links to ensure sufficient amounts are available in future for MSS on a worldwide basis. 97. The IAC's Interim Report also identifies several potential subjects for future consideration relating to space services. It advises that WRC-97 consider allocating the 65.0-71.0 GHz band to the inter-satellite service (ISS) on a co-equal primary basis as an alternative to its present co-primary allocation in the 54.25-58.2 GHz band. The ISS will be used by commercial LEO satellite systems for their inter- satellite links and has the potential to interfere with passive earth sensors sharing the band. Specifically, the proposal is intended to protect passive sensing by the Earth exploration-satellite service of oxygen absorption lines that are unique to the 51.4- 59.0 GHz band, for weather forecasting and climate studies. The following additional suggestions for future conference items are also described in the IAC Interim Report: (1) upgrading the status of space research in the 410-420 MHz band; (2) reviewing the allocation status for active space-based sensors; and (3) adopting sharing criteria between space services and fixed services in the 2025-2110 and 2200-2290 MHz bands. 98. The IAC Interim Report includes the following additional suggestions which are of a very preliminary nature for consideration as future conference topics. Comments on these nascent proposals are specifically requested. The Telecommunications Industry Association (TIA) suggests consideration of additional international spectrum allocations for terrestrial land mobile services for public safety applications including possible reallocation of the 380-399.9 MHz band. Intelligent Transportation Systems (ITS) proponents are considering frequency bands below 6 GHz for communications and a band above 40 GHz for vehicular collision avoidance. Noting European interest in the 5.8 GHz band, the ITS community has expressed a desire for international compatibility of systems. We also invite comment on which bands would be appropriate for the above services. 99. As we have noted, under the four-year conference planning cycle, WRC- 95 will adopt not only an agenda for WRC-97 (subject to Council's approval), but a preliminary agenda for WRC-99. The Notice therefore requested commenters to submit their views on issues for inclusion in the preliminary agenda for WRC-99. Few parties addressed this topic, however. The American Radio Relay League requests that WRC-99 consider adoption of an international amateur radio permit, such as one currently under development by the Inter-American Telecommunications Commission (CITEL). IVHS America posits that consideration of ITS spectrum allocation issues might carry over to the 1999 conference. 100. The opportunity offered at WRC-95 to identify issues for consideration at future conferences is a significant one that should not be overlooked due to the press of current issues. We therefore renew our request and urge the parties to take advantage of this opportunity for long-range planning and to submit their views on issues for consideration at WRC-99 and beyond. D. Related Conference Preparatory Issues 1. 1995 Conference Preparation Meeting 101. Under the ITU's new structure, WRCs are preceded by Conference Preparatory Meetings (CPM) which assign tasks and studies relative to the agenda of the upcoming WRCs to the appropriate ITU study groups, working groups, and task groups. Based on the results of this work, the CPM prepares a comprehensive report to provide technical and other support for the associated WRCs. CPM-94 convened in February, 1994. CPM-95 will be convened from March 22 to April 5, 1995, and will complete the technical report for WRC-95 and review the progress of preparatory studies for agenda items to be considered at WRC-97. In addition, the Working Party of the CPM will meet from January 26 to 31, 1995, to consider regulatory and procedural aspects of the WRC-95 agenda. Commission staff are active participants in CPMs as well as in the meetings of the subordinate technical bodies performing the underlying work for the conferences. Commission staff are also attending the meetings of the Radiocommunication Advisory Group from January 23 to 27, 1995, in Geneva, that are considering, among other issues, the organizational structure of WRC-95. Finally, staff will participate in the Radiocommunication Assembly (RA-95) which will be convened October 16 to 20, 1995 -- immediately prior to the commencement of WRC-95. 2. Other International WRC Planning Activities 102. In addition to the above ITU activities directed towards preparing for WRC-95 and WRC-97, United States Delegations (including Commission staff) participate in other international fora which devote their attention to WRCs. For example, the Commission is an active participant in CITEL's recently formed Working Group for preparation of Regional and World Radiocommunication Conferences. CITEL offers great promise as a forum for developing joint Region 2 proposals for future WRCs and regional radiocommunication conferences. The views of CITEL and other organizations, such the International Civil Aviation Organization (ICAO), the International Maritime Organization (IMO), are being reviewed as part of the United States' overall effort to prepare for WRC-95. United States Delegations will also participate in bilateral discussions with other Administrations prior to WRC-95. 3. Preliminary U.S. Government Agency-Developed WRC-95 Proposals 103. Acting in parallel with this proceeding and the Commission's IAC process, the NTIA's Interdepartment Radio Advisory Committee (IRAC) and its Radio Conference Subcommittee (RCS) are coordinating the views of federal government agencies on WRC-95 agenda items with the purpose of developing their own preliminary proposals for the conference. An initial draft of the NTIA Draft Proposals was informally transmitted to the Commission and the IAC for purposes of public consideration and facilitation of overall domestic development of U.S. proposals for WRC-95. The federal government agencies' recommended proposals resulting from this process, as well as the proposals culminating from the deliberations of the IAC and from this proceeding, will be fully coordinated with NTIA and the Department of State in formulating the final U.S. proposals. Commission staff generally agrees with the preliminary proposals that it has received thus far for review. 4. Conference Preparatory Processes 104. In the Notice, the Commission noted that in view of the ITU's restructuring and adoption of a regular WRC planning cycle, it might also be appropriate to modify the Commission's own planning and preparation processes and structures for future WRCs. It observed that the new conference and planning cycle would require ongoing domestic preparations, particularly in light of the long lead time necessary for developing proposals for WRCs. Thus, in order to ensure continuing effective representation of U.S. interests, the Commission announced that it would consider establishing a permanent process for conference preparations. 105. Since the release of the Notice, the Commission has reorganized its international and satellite functions, formerly contained in the Common Carrier Bureau, Mass Media Bureau, Private Radio Bureau, Office of Engineering and Technology, Field Operations Bureau, and Office of International Communications, by consolidating them into a single operating bureau -- the International Bureau. Within the new Bureau, an office has been established to continuously track the activities of the ITU's Radiocommunication Sector and to prepare for WRCs. That office, the Radiocommunication Policy Branch of the Satellite and Radiocommunication Division, includes permanent staff personnel with continuous conference planning responsibilities. The Bureau also plans to provide a consolidated international public reference room which will offer the public access to IAC and related documents to facilitate ongoing WRC preparations. 106. The parties express general support of the Commission's recommendations contained in the Notice and offer additional ideas to improve the process. COMSAT World suggests that the Commission create a WRC Preparatory Office to direct and coordinate all internal and external Commission preparations and that it name an Executive Coordinator for each of the next two WRCs. It further proposes that the Commission create a permanent IAC structure whose leadership would change for each conference. Orbcomm advises the Commission to organize the preparatory process on an issue basis, with small government/industry teams focusing on specific allocation and regulatory matters. 107. Several comments signalled a second theme -- a frustration with the current process which is closed to the public once final consultations among the Commission and federal government entities are underway to forge final U.S. proposals. In a similar vein, AMSC recommends that the IAC process be modified to encourage broader participation of members from other government agencies -- particularly IRAC members -- and that the Commission consider establishing a joint committee of FCC and NTIA representatives that would be open to members of the private sector to jointly study issues under consideration for WRC agendas. 108. Finally, the IAC urges the Commission to create a "permanent" Industry Advisory Committee for WRC preparations in order to: (1) maintain inter-conference continuity of private sector input into WRC preparations; (2) establish a single repository for old and new WRC documents; and (3) assuage antitrust concerns of industry participants. According to the IAC, a "permanent" IAC would mirror the federal agency preparatory process and would result in better prepared U.S. positions, proposals, and delegations. The IAC does recognize, however, that the Federal Advisory Committee Act limits industry advisory committees to two-year terms and that the President has requested agencies to institute such committees only when necessitated by "compelling circumstances." The IAC suggests the Commission follow the success of the Industry Advisory Committee on Advanced Television Service, for example, and seek timely and continuous renewal of the IAC to facilitate preparations for WRC-97 and beyond. The Commission agrees that the IAC process is important to U.S. preparations and we intend to seek prompt renewal of the IAC's charter to prepare for future conferences. We note that federal government agency representatives are already active participants in the IAC, but agree that their continued participation should be encouraged. Finally, we also agree that broadening the opportunity for public participation in the process of negotiating final U.S. proposals is a worthy goal and should be considered further. Accordingly, further comment on all of these matters is requested. IV. PROCEDURAL MATTERS Ex Parte Rules - Exempt Proceeding 109. Pursuant to Section 1.1204(a)(4) of the Commission's Rules, 47 CFR  1.204(a)(4), no ex parte restrictions apply to this proceeding. Comment Dates 110. Pursuant to applicable procedures set forth in Sections 1.415 and 1.419 of the Commission's Rules, 47 CFR  1.415, 1.419, interested parties may file comments on or before March 6, 1995, and to reply comments on or before March 21, 1995. To file formal comments in this proceeding, you must file an original plus four copies. If you would like each Commissioner to receive a personal copy, you must file an original and nine copies. Comments and reply comments should be sent to the Office of the Secretary, Federal Communications Commission, Washington, D.C. 20554. Comments and reply comments will be available for public inspection during regular business hours in the FCC Reference Center, Room 239, 1919 M Street, N.W., Washington, D.C. 20554. Ordering Clause 111. Authority for issuance of this Second Notice of Inquiry is contained in Sections 154(i), 303(g), 303(r), and 332(a) of the Communications Act of 1934, as amended, 47 U.S.C.  154(i), 303(g), 303(r), and 332(a). Contact Persons 112. For further information concerning this proceeding, contact Damon C. Ladson, (202) 739-0510, or Audrey L. Allison, (202) 739-0557, of the International Bureau, Satellite and Radiocommunication Division. FEDERAL COMMUNICATIONS COMMISSION William F. Caton Acting Secretary APPENDIX 1 RECOMMENDED UNITED STATES PROPOSALS -- PRELIMINARY FCC DRAFT UNITED STATES PROPOSALS for the WORLD RADIOCOMMUNICATION CONFERENCE (GENEVA, 1995) Washington, D.C. January, 1995 RECOMMENDED UNITED STATES PROPOSALS -- PRELIMINARY FCC DRAFT METHOD OF PRESENTATION 1. Services shown in all capital letters (e.g., MOBILE-SATELLITE SERVICE) in the Allocation Table are services with primary status. 2. Services shown with an initial capital letter and the remaining letters in lower case (e.g., Fixed) in the Allocation Table are services with secondary status. 3. Underlining (e.g., Underlining) indicates new text proposed for adoption. 4. Strike-out text (e.g.) indicates existing text proposed for deletion. 5. NOC indicates provisions for which no change is proposed. 6. NOC indicates a matter of particular significance, for which it is important that no changes be made to the current provisions. 7. SUP indicates provisions that are proposed for suppression. 8. MOD indicates a proposed modification to the existing text. 9. (MOD) indicates proposed modifications that are strictly editorial in nature. 10. ADD indicates new provisions that are being proposed for addition. MHz 4800 - 5725 MOD Allocation To Services Region 1 Region 2 Region 3 5000 - 5250 AERONAUTICAL RADIONAVIGATION FIXED-SATELLITE SERVICE (Earth-to-space) 797C MOD 796 797B 797D NOC 797B MOD 733 The band 1610 - 1626.5 MHz is also allocated to the aeronautical mobile- satellite (R) service on a primary basis. Such use is subject to agreement obtained under the procedure set forth in Article 14. MOD 796 The band 5030 - 5091 MHz is to be used for the operation of the international standard system (microwave landing system) for precision approach and landing. The requirements of this system shall take precedence over other uses of this band. Future operations of MLS may extend into the 5000 - 5030 MHz band. Administrations should attempt to satisfy the needs of MLS in the 5030 - 5091 MHz band before expansion into the 5000 - 5030 MHz band. After January 1, 2015, the microwave landing system may also operate in the band 5091 -5120 MHz, if the requirements of the system in support of precision approach and landing cannot be met in the 5000- 5030 and 5030 - 5091 MHz bands. In the event that microwave landing system operations extend beyond the 5030 - 5091 MHz band, the requirements of this system shall take precedence over other uses of the occupied bands. SUP 797 SUP 797A ADD 797C The use of the band 5000 - 5250 MHz (Earth-to-space) and 15.4 - 15.7 GHz (space-to-Earth) by the fixed-satellite service is limited to feeder links for non- geostationary satellite systems of the mobile-satellite service. ADD 797D The use of the band 5000 - 5250 MHz (Earth-to-space) by the fixed-satellite service is subject to the application of the coordination and notification procedures set forth in Resolution 46 [suitably modified], for coordination between non-geostationary satellite networks (Earth-to-space) and between non-geostationary satellite networks (Earth-to-space) and terrestrial services. REASON: To allocate spectrum specifically for feeder links to support mobile-satellite services provided from non-geostationary satellite networks. Suppression of Nos. 797 and 797A are consequential. Modification of No. 796 incorporates the alternative MLS expansion plan discussed internationally and articulates the transition plan with initial expansion (subject to need) into the 5000 - 5030 MHz band and subsequent expansion (subject to need) into the 5091 - 5120 MHz band. MHz 5725 - 7300 MOD Allocation To Services Region 1 Region 2 Region 3 5925 - 6825 FIXED FIXED-SATELLITE (Earth-to-space) MOD 792A MOBILE 791 809 6825 - 7075 FIXED FIXED-SATELLITE (Earth-to-space) MOD 792A (space-to-Earth) 809A MOBILE 809 809B NOC 791, 809 MOD 792A The use of the bands 4500 - 4800 MHz (space-to-Earth), 6725 - 7025 MHz (Earth-to-space), 10.7 - 10.95 GHz (space-to-Earth), 11.2 - 11.45 GHz (space-to-Earth) and 12.75 - 13.25 GHz (Earth-to-space), by the fixed-satellite service shall be in accordance with the provisions of Appendix 30B. ADD 809A The use of the bands 6825 - 7075 MHz (space-to-Earth) and 12.75 - 13.25 GHz (space-to-Earth) by the fixed-satellite service is limited to feeder links for non- geostationary satellite networks of the mobile-satellite service. The provisions of No. 2613 do not apply to these fixed-satellite service allocations for the (space-to-Earth) direction of transmission. ADD 809B The use of the bands 6825 - 7075 MHz (space-to-Earth) and 12.75 - 13.25 GHz (space-to-Earth) by the fixed satellite service is subject to the application of the coordination and notification procedures set forth in Resolution 46 [suitably modified], for the coordination between geostationary satellite networks (Earth-to-space) and non- geostationary satellite networks (space-to-Earth) and between non-geostationary satellite networks (space-to-Earth). Non-geostationary satellite networks shall not exceed the power flux-density limit at the geostationary-satellite orbit as specified in No. 2631. Coordination between non-geostationary satellite networks and terrestrial services in the band 6825 - 7075 MHz (space-to-Earth) is required only if the power- flux density produced at the Earth's surface exceeds the limits specified in No. MOD 2567 and in the band 12.75 - 13.25 GHz (space-to-Earth) if the power-flux density produced at the Earth's surface exceeds the limits specified in No. MOD 2575. REASON: To allocate spectrum specifically for feeder links to support mobile-satellite services provided from non-geostationary satellite networks. Suppression of No. 791 in the 6825 - 7075 MHz band is consequential to allocation modification since No. 791 does not apply in this frequency band. GHz 10.7 - 12.75 MOD Allocation To Services Region 1 Region 2 Region 3 10.7 - 10.95 FIXED FIXED-SATELLITE (space-to-Earth) MOD 792A (Earth-to-space) 792B MOD 835 835A MOBILE except aeronautical mobile 792C 10.7 - 10.95 FIXED FIXED-SATELLITE (space-to-Earth) MOD 792A (Earth-to-space) 792B MOBILE except aeronautical mobile 792C 10.95 - 11.2 FIXED FIXED-SATELLITE (space-to-Earth) (Earth-to-space) MOD 835 MOBILE except aeronautical mobile 10.95 - 11.2 FIXED FIXED-SATELLITE (space-to-Earth) MOBILE except aeronautical mobile 11.2 - 11.45 FIXED FIXED-SATELLITE (space-to-Earth) MOD 792A (Earth-to-space) 792B MOD 835 835A MOBILE except aeronautical mobile 792C 11.2 - 11.45 FIXED FIXED-SATELLITE (space-to-Earth) MOD 792A (Earth-to-space) 792B MOBILE except aeronautical mobile 792C 11.45 - 11.7 FIXED FIXED-SATELLITE (space-to-Earth) (Earth-to-space) MOD 835 MOBILE except aeronautical mobile 11.45 - 11.7 FIXED FIXED-SATELLITE (space-to-Earth) MOBILE except aeronautical mobile ADD 792B The use of the bands 10.7 - 10.95 GHz (Earth-to-space) and 11.2 - 11.45 GHz (Earth-to-space) by the fixed-satellite service is limited to feeder links for non- geostationary satellite networks of the mobile-satellite service except as provided by No. 835 for broadcasting-satellite service feeder links (Earth-to-space). The provisions of No. 2613 do not apply to these fixed-satellite service allocations in the Earth-to- space direction of transmission. ADD 792C The use of the bands 10.7 - 10.95 GHz (Earth-to-space), and 11.2 - 11.45 GHz (Earth-to-space) by the fixed-satellite service for feeder links for non-geostationary satellite networks of the mobile-satellite service is subject to the coordination and notification procedures set forth in Resolution 46 [suitably modified] for the coordination between geostationary satellite networks (space-to-Earth) and non- geostationary satellite networks (Earth-to-space), between non-geostationary satellite networks (Earth-to-space), and between non-geostationary satellite networks (Earth-to- space) and terrestrial services. MOD 835 In Region 1, the band 10.7 - 11.7 GHz may also be used by the fixed-satellite service (Earth-to-space) for the provision of feeder links for the broadcasting-satellite service. ADD 835A The use of the fixed - satellite service band 10.7 - 10.95 GHz (Earth-to-space), and the fixed - satellite service band 11.2 - 11.45 GHz (Earth-to-space) in Region 1 for feeder links for the broadcasting-satellite service is subject to the coordination and notification procedures set forth in Resolution 46 [suitably modified] for the coordination between non-geostationary networks (Earth-to-space) and geostationary satellite networks (Earth-to-space) operating pursuant to No. MOD 835. REASON: To allocate spectrum specifically for feeder links to support mobile-satellite services provided from non-geostationary satellite networks. GHz 12.75 - 14.3 MOD Allocation To Services Region 1 Region 2 Region 3 12.75 - 13.25 FIXED FIXED-SATELLITE (Earth-to-space) MOD 792A (space-to-Earth) 809A MOBILE Space Research (deep space) (space-to-Earth) 809B REASON: To allocate spectrum specifically for feeder links to support mobile-satellite services provided from non-geostationary satellite networks. GHz 15.35 - 17.7 MOD Allocation To Services Region 1 Region 2 Region 3 15.4 - 15.7 AERONAUTICAL RADIONAVIGATION FIXED-SATELLITE SERVICE (space-to-Earth) 797C 797E MOD 733 The band 1610 - 1626.5 MHz is also allocated to the aeronautical mobile- satellite (R) service on a primary basis. Such use is subject to agreement obtained under the procedure set forth in Article 14. SUP 797 ADD 797E The use of the band 15.4 - 15.7 GHz (space-to-Earth) by the fixed-satellite service is subject to the application of the coordination and notification procedures set forth in Resolution 46 [suitably modified], for coordination between non-geostationary satellite networks (space-to-Earth) and between non-geostationary satellite networks (space-to-Earth) and terrestrial services. REASON: To allocate spectrum specifically for feeder links to support mobile-satellite services provided from non-geostationary satellite networks. Suppression of No 797 is consequential. GHz 18.8 - 22.21 MOD Allocation To Services Region 1 Region 2 Region 3 18.8 - 18.9 FIXED FIXED-SATELLITE (space-to-Earth) MOBILE 18.9 - 19.2 FIXED FIXED-SATELLITE (space-to-Earth) (Earth-to-space) 730B MOBILE 730C 19.2 - 19.7 FIXED FIXED-SATELLITE (space-to-Earth) 730D MOBILE 730E ADD 730B The use of the band 18.9 - 19.2 GHz (Earth-to-space) by the fixed satellite service is limited to feeder links for non-geostationary satellite systems in the mobile- satellite service. The provisions of No. 2613 do not apply to these fixed-satellite allocations in the Earth-to-space direction of transmission. ADD 730C The use of the band 18.9 - 19.2 GHz (Earth-to-space) by the fixed satellite service for feeder links for non-geostationary satellite networks is subject to the coordination and notification procedures set forth in Resolution 46 [suitably modified] for the coordination between geostationary satellite networks (space-to-Earth) and non- geostationary satellite networks (Earth-to-space), between non-geostationary satellite networks (Earth-to-space), and between non-geostationary satellite networks (Earth-to- space) and terrestrial services. ADD 730D The band 19.2 - 19.7 GHz (space-to-Earth) may also be used by the fixed- satellite service on a primary basis for feeder links for non-geostationary satellite systems in the mobile-satellite service. The provisions of No. 2613 do not apply to this fixed-satellite allocation in the space-to-Earth direction of transmission. Note: We proposed to pair the 19.2-19.7 GHz band with 500 MHz of spectrum within the 27.5 - 29.5 GHz band. The most logical pairing would be with the 29.0-29.5 MHz band. However, the Commission is engaged in other reulemaking proceedings that could effect the availibility of the 29.0-29.5 MHz band for feeder links. Therefore, we request comment on both the 29.0-29.5 GHz and alternate 500 MHz segments within the 27.5-29.5 GHz range for pairing with the 19.2-19.7 GHz band. We include the 29.0-29.5 MHz band as an example '500 MHz' proposal. ADD 730E The use of the band 19.2- 19.7 GHz (space-to-Earth) by the fixed-satellite service is subject to the application of the coordination and notification procedures set forth in Resolution 46 [suitably modified], for the coordination between geostationary networks (space-to-Earth) and non-geostationary satellite networks (space-to-Earth), between non-geostationary satellite networks (space-to-Earth) and between non- geostationary satellite networks (space-to-Earth) and terrestrial services. Emissions from non-geostationary space stations shall not exceed the power flux - density limits at the Earth's surface as specified in No. MOD 2578. Non-geostationary satellite space stations shall not exceed the power flux-density limit at the geostationary- satellite orbit as specified in No. 2631. REASON: To allocate spectrum specifically for feeder links to support mobile-satellite services provided from non-geostationary satellite networks. GHz 25.25 - 29.5 MOD Allocation To Services Region 1 Region 2 Region 3 28.5 - 29.0 FIXED FIXED-SATELLITE (Earth-to-space) 882D MOBILE Earth Exploration-Satellite (Earth-to-space) 882C 882B 29.0 - 29.5 FIXED FIXED-SATELLITE (Earth-to-space) 882D 882F 882G MOBILE Earth Exploration-Satellite (Earth-to-space) 882C 882B 882E NOC 882B, 882C, 882D ADD 882E The use of the band 29.0 - 29.5 GHz (Earth-to-space) for feeder links for the broadcasting-satellite service is subject to the coordination and notification procedures set forth in Resolution 46 [suitably modified] for the coordination between non- geostationary networks (Earth-to-space) and geostationary satellite networks (Earth-to- space) operating pursuant to No. 882D. ADD 882F The band 29.0 - 29.5 GHz (Earth-to-space) may also be used by the fixed - satellite service on a primary basis for feeder links for non-geostationary satellite systems in the mobile-satellite service. The provisions of No. 2613 do not apply to this fixed-satellite allocation in the Earth-to-space direction of transmission. ADD 882G The use of the band 29.0 - 29.5 GHz (Earth-to-space) by the fixed-satellite service is subject to the coordination and notification procedures set forth in Resolution 46 [suitably modified] for the coordination between geostationary satellite networks (Earth-to-space) and non-geostationary satellite networks (Earth-to-space), between non-geostationary satellite networks (Earth-to-space), and between non-geostationary satellite networks (Earth-to-space) and terrestrial services. Note: We proposed to pair the 19.2-19.7 GHz band with 500 MHz of spectrum within the 27.5 - 29.5 GHz band. The most logical pairing would be with the 29.0-29.5 MHz band. However, the Commission is engaged in other reulemaking proceedings that could effect the availibility of the 29.0-29.5 MHz band for feeder links. Therefore, we request comment on both the 29.0-29.5 GHz and alternate 500 MHz segments within the 27.5-29.5 GHz range for pairing with the 19.2-19.7 GHz band. We include the 29.0-29.5 MHz band as an example '500 MHz' proposal. REASON: To allocate spectrum specifically for feeder links to support mobile-satellite services provided from non-geostationary satellite networks. MOD ARTICLE 28 Proposed modification of No. 2567 b) and addition of No. 2567 c) to Article 28 of the Radio Regulations regarding the power flux-density limits between 3400 MHz and 7750 MHz. MOD 2567 b) The power flux-density at the Earth's surface produced by emissions from a space station which operates as a feeder link for a mobile-satellite service network in the fixed-satellite service in the band 6825 - 7075 MHz (space-to-Earth), for all conditions and for all methods of modulation, shall not exceed the following values: -154 dB(W/m2/4 kHz) for arrival angles 0o to 5o; -144 dB(W/m2/4 kHz) for arrival angles 5o to 90o. c) The limits given in No. 2566 apply in the frequency bands listed in No. 2568 which are allocated to the following space radiocommunication services: - fixed-satellite service (space-to-Earth) - meteorological - satellite service (space-to-Earth) - mobile - satellite service - space research service for transmission by space stations where these bands are shared with equal rights with the fixed or mobile service. Proposed modification of No. 2573 and addition of No. 2575 c) to Article 28 of the Radio Regulations regarding the power flux-density limits between 12.2 GHz and 13.25 GHz. MOD 2573 (6) Power flux-density limits between 12.2 GHz and 13.25 GHz. MOD 2575 b) The power flux-density at the Earth's surface produced by emissions from a space station which operates as a feeder link for a mobile-satellite service network in the fixed-satellite service in the band 12.75 - 13.25 GHz (space-to-Earth), for all conditions and for all methods of modulation, shall not exceed the following values: -148 dB(W/m2/4kHz) for arrival angles 0o to 5o; -138 dB(W/m2/4kHz) for arrival angles 5o to 90o. c) The limits given in No. 2574 apply in the frequency bands indicated in No. 2576 which are allocated to the fixed - satellite service for transmission by space stations where these bands are shared with equal rights with the fixed or mobile service. Proposed addition of No. 2578 b) and modification of No. 2579 to Article 28 of the Radio Regulations regarding the power flux-density limits between 17.7 GHz and 19.7 GHz. MOD 2578 a) The power flux-density at the Earth's surface produced by emissions from a space station, including emission from a reflecting satellite, for all conditions and for all methods of modulation, shall not exceed the following values: - 115 dB(W/m2) in any 1 MHz band for angles of arrival between 0 and 5 degrees above the horizontal plane; - 115 + 0.5(ë - 5)dB(W/m2) in any 1 MHz band for angles of arrival ë (in degrees) between 5 and 25 degrees above the horizontal plane; - 105 dB(W/m2) in any 1 MHz band for angles of arrival between 25 and 90 degrees above the horizontal plane. These limits relate to the power flux-density which would be obtained under assumed free-space propagation conditions. b) The power flux-density at the Earth's surface produced by emissions from a space station which operates as a feeder link for a mobile-satellite service network in the fixed-satellite service in the band 19.2 - 19.7 GHz (space-to-Earth), for all conditions and for all methods of modulation, shall not exceed the following values: -115 dB(W/m2/MHz) for arrival angles 0o to 5o; -105 dB(W/m2/MHz) for arrival angles 5o to 90o. These limits relate to the power flux-density which would be obtained under assumed free-space propagation conditions. MOD 2579 c) The limits given in No. 2578 apply in the frequency band listed in No. 2580 which are allocated to the following space radiocommunication services: - fixed-satellite service (space-to-Earth) - earth exploration - satellite including meteorological - satellite service (space-to-Earth) for transmission by space stations where this band is shared with equal rights with the fixed or mobile service. REASON: Proposals for Nos. 2567, 2573, 2575, 2578, and 2579 facilitate the sharing between the non-geostationary satellite networks providing MSS feeder links and other radio services operating in the frequency band. MOD ARTICLE 29 Proposed modification of No. 2631 of Article 29 of the Radio Regulations, Section V., Power Flux-Density at the Geostationary-Satellite Orbit. MOD 2631  6. a) In the frequency band 8025 MHz - 8400 MHz which the earth exploration - satellite service using non-geostationary satellites shares with the fixed - satellite service (Earth-to-space) or the meteorological - satellite service (Earth-to- space), the maximum power flux-density produced at the geostationary-satellite orbit by any earth exploration - satellite service space station shall not exceed -174 dB(W/m2) in any 4 kHz band. b) In the frequency bands 6825 - 7075 MHz (space-to-Earth) and 12.75 - 13.25 GHz (space-to-Earth) which feeder link networks of the mobile-satellite service share with the fixed-satellite service (Earth-to-space), the maximum power flux-density produced at the geostationary-satellite orbit by any feeder link network space station shall not exceed -168 dB(W/m2) in any 4 kHz band. These values apply within +/- 5o of the geostationary-satellite orbit. REASON: Proposals for No. 2631 facilitates the sharing between the non-geostationary satellite networks providing MSS feeder links and other radio services operating in the frequency band. Proposal to Amend Article 8 of the Radio Regulations MOD MHz 137 - 137.825 Allocation to Services Region 1 Region 2 Region 3 137 - 137.025 SPACE OPERATION (space to Earth) 599X METEOROLOGICAL SATELLITE (space to Earth) 599X MOBILE-SATELLITE (space-to-Earth) 599B SPACE RESEARCH (space to Earth) 599X Fixed Mobile except aeronautical mobile (R) 596 597 598 599 599A 137.175 - 137.825 SPACE OPERATION (space to Earth) 599X METEOROLOGICAL SATELLITE (space to Earth) 599X MOBILE-SATELLITE (space-to-Earth) 599B SPACE RESEARCH (space to Earth) 599X Fixed Mobile except aeronautical mobile (R) 596 597 598 599 599A NOC 596, 597, 598, 599, 599A ADD 599X Space operation, meteorological satellite service and space research will be co-primary until [1 January 2006], and secondary until [1 January 2010] to protect continuing operations. Reason To recognize the movement of space operations, meteorological satellite and space research systems to other segments of the 137 - 138 MHz band and to provide protection to these services during the transition period. Note, however, that in October 1994, Congress mandated that DoD and NOAA combine their polar orbiting meteorological satellite programs. This convergence, as well as the potential convergence with similar European meteorological satellite programs, is in the planning stage and the characteristics and frequencies of operation of new satellites are not defined. Consequently, the time frame for migrating meteorological satellites from the 137-137.025 MHz and 137.175-137.825 MHz band is still under discussion. Therefore, the years 2006 and 2010, referenced in the text above, appear in square brackets in the attached proposal for the 137-138 MHz band. MOD MHz 148 - 150.05 Allocation to Services Region 1 Region 2 Region 3 148-149.9 FIXED MOBILE except aeronautical mobile (R) MOBILE-SATELLITE (Earth-to-space) MOD599B 608 MOD608A 608C 148-149.9 FIXED MOBILE MOBILE-SATELLITE (Earth-to-space) MOD599B 608 MOD608A 608C 149.9-150.05 MOBILE-SATELLITE (Earth-to-space) MOD599B MOD609B RADIONAVIGATION- SATELLITE MOD608B 609 609A NOC 608, 608C, 609, 609A MOD 599B WARC-92 The use of the bands 137 - 138 MHz, 148 -149.9 MHz, 149.9 - 150.05 MHz, 399.9 - 400.05 MHz and 400.15 - 401 MHz by the mobile-satellite service is limited to non-geostationary-satellite systems. MOD 608A WARC-92 . Administrations using mobile earth stations in the mobile satellite service shall use the coordination distance threshold method in Recommendation (WP 8D)/TEMP/35 Rev.1) to determine coordination distance thresholds outside national boundaries. MOD 608B WARC-92 The use of the bands 149.9-150.05 MHz and 399.9 - 400.05 MHz by the mobile-satellite service is subject to the application of the coordination and notification procedures set forth in Resolution 46 (WARC-92). The mobile- satellite service shall not constrain the development and use of the radionavigation-satellite service in the 149.9-150.05 MHz and 399.9 - 400.05 bands . MOD 609B WARC-92 In the band 149.9-150.05 MHz, the allocation to the mobile-satellite service shall be on a secondary basis until 1 January 1997. Reason To allow for maximum flexibility in system implementation the land mobile satellite allocation in the 149.9 - 150.05 MHz band is proposed for any Mobile Satellite service. Modification to No. 608A was required because the -150 dB(W/m2/kHz) has proven to be operationally unusable. The coordination distance threshold is a more useful approach to facilitate coordination across national boundaries. The removal of 'land' in Footnotes 608B and 609B reflects the change in the allocation table to Mobile Satellite service. The removal of -150 dB(W/m2/4 kHz) power flux density maximum in No. 608B reflects the fact that there are no fixed or mobile services in this band. MOD MHz 399.9-400.05 Allocation to Services Regions 1 Region 2 Region 3 399.9-400.05 RADIONAVIGATION SATELLITE MOBILE SATELLITE (Earth-to-space) 609 645B MOD599B MOD608B NOC 609, 645B Reason In the 399.9 - 400.05 MHz band the TRANSIT system is being phased out of this band making it available for an Mobile Satellite service allocation. MHz MOD 1525 - 1530 Allocation to Services Region 1 Region 2 Region 3 1525 - 1530 SPACE OPERATION (space-to-Earth) FIXED MOBILE-SATELLITE (space-to-Earth) Earth Exploration-Satellite Mobile except aeronautical mobile 724 722 723B 725 726A 726D 1525 - 1530 SPACE OPERATION (space-to-Earth) MOBILE-SATELLITE (space-to-Earth) Earth Exploration-Satellite Fixed Mobile 723 722 723A 726A 726D 1525 - 1530 SPACE OPERATION (space-to-Earth) FIXED MOBILE-SATELLITE (space-to-Earth) Earth Exploration-Satellite Mobile 723 724 722 726A 726D NOC 722, 723, 723A, 723B, 724, 725, 726A, 726D SUP 726B Reason To make allocations for Mobile Satellite service. MHz MOD 1530 - 1533 Allocation to Services Region 1 Region 2 Region 3 1530 - 1533 SPACE OPERATION (space-to-Earth) MOBILE-SATELLITE (space-to-Earth) Earth Exploration-Satellite Fixed Mobile except aeronautical mobile 722 723B 726A MOD726C 726D 1530 - 1533 SPACE OPERATION (space-to-Earth) MOBILE-SATELLITE (space-to-Earth) Earth Exploration-Satellite Fixed Mobile 723 722 726A MOD726C 726D MOD 726C In the bands 1530 - 1544 MHz and 1626.5 - 1645.5 MHz, the maritime mobile-satellite distress and safety communications shall have priority access and immediate availability over all other mobile-satellite communications operating under this provision. Communications of mobile-satellite system stations not participating in the global maritime distress and safety system (GMDSS) shall operate on a secondary basis to distress and safety communications of stations operating in the GMDSS. Account shall be taken of the priority of safety-related communications in the other mobile-satellite services. Reason To make allocations generic and to provide priority access and immediate availability for maritime distress and safety communications. MOD MHz 1533 - 1559 Allocation to Services Region 1 Region 2 Region 3 1533 - 1535 SPACE OPERATION (space-to- Earth) MOBILE-SATELLITE (space-to-Earth) Earth Exploration-Satellite Fixed Mobile except aeronautical mobile 722 723B 726A MOD726C 726D 1533 - 1535 SPACE OPERATION (space-to-Earth) MOBILE-SATELLITE (space-to-Earth) Earth Exploration-Satellite Fixed Mobile 723 722 726A MOD726C 726D 1535 - 1544 MOBILE-SATELLITE (space-to-Earth) 722 726A MOD726C 726D 727 1544 - 1545 MOBILE-SATELLITE (space-to-Earth) 722 726D 727 727A 1545 - 1555 MOBILE-SATELLITE (space-to-Earth) 722 726A 726D 727 729 730 MOD730C 1555 - 1559 MOBILE-SATELLITE (space-to-Earth) 722 726A 726D 727 730 MOD730C NOC 727, 727A, 729, 730 SUP 729A . SUP730A . MOD 730C In the bands 1545 - 1559 MHz and 1646.5 - 1660.5 MHz, the aeronautical mobile-satellite (R) service shall have priority access and immediate availability over all other mobile-satellite communications within a network operating under this provision; mobile-satellite systems shall be interoperable with the aeronautical mobile-satellite (R) service; account shall be taken of the priority of safety-related communications in the other mobile-satellite services. SUP 730B . Reason To make allocations availiable for all Mobile Satellite services and to provide priority access and immediate availability for aeronautical and maritime distress and safety communications. MHz MOD 1610 - 1626.5 Allocation of Services Region 1 Region 2 Region 3 1610 -1610.6 MOBILE-SATELLITE (Earth-to-space) AERONAUTICAL RADIONAVIGATION 722 727 730 731 MOD731E 732 733 733A 733B 733E 733F 1610 -1610.6 MOBILE-SATELLITE (Earth-to-space) AERONAUTICAL RADIONAVIGATION RADIODETERMINATION- SATELLITE (Earth-to -space) 722 MOD731E 732 733 733A 733C 733D 733E 1610 -1610.6 MOBILE-SATELLITE (Earth-to-space) AERONAUTICAL RADIONAVIGATION Radiodetermination- Satellite (Earth-to -space) 722 727 730 731 MOD731E 732 733 733A 733B 733E 1610.6 - 1613.8 MOBILE-SATELLITE (Earth-to-space) RADIO ASTRONOMY AERONAUTICAL RADIONAVIGATION 722 727 730 731 MOD731E 732 733 733A 733B 733E 733F 734 1610.6 - 1613.8 MOBILE-SATELLITE (Earth-to-space) RADIO ASTRONOMY AERONAUTICAL RADIONAVIGATION RADIODETERMINATION- SATELLITE (Earth-to- space) 722 MOD731E 732 733 733A 733C 733D 733E 734 1610.6 - 1613.8 MOBILE-SATELLITE (Earth-to-space) RADIO ASTRONOMY AERONAUTICAL RADIONAVIGATION Radiodetermination- Satellite (Earth-to -space) 722 727 730 731 MOD731E 732 733 733A 733B 733E 734 1613.8 -1626.5 MOBILE-SATELLITE (Earth-to-space) AERONAUTICAL RADIONAVIGATION Mobile-Satellite (space-to-Earth) 722 727 730 731 MOD731E 731F 732 733 733A 733B 733E 733F 1613.8 -1626.5 MOBILE-SATELLITE (Earth-to-space) AERONAUTICAL RADIONAVIGATION RADIODETERMINATION- SATELLITE (Earth-to -space) Mobile-Satellite (space-to-Earth) 722 MOD731E 731F 732 733 733A 733C 733D 733E 1613.8 -1626.5 MOBILE-SATELLITE (Earth-to-space) AERONAUTICAL RADIONAVIGATION Radiodetermination- Satellite (Earth-to - space) Mobile-Satellite (space-to-Earth) 722 727 730 731 MOD731E 731F 732 733 733A 733B 733E NOC 731 731F 732 733 733A 733B 733E 733F 734 MOD 731E The use of the band 1610-1626.5 MHz by the mobile-satellite service (Earth-to-space) and by the radiodetermination-satellite service (Earth-to- space) is subject to the application of the coordination and notification procedures set forth in Resolution 46 (WARC-92). A mobile earth station operating in either of the services in this band shall not produce a mean e.i.r.p. density in excess of -15 dB (W/4 kHz) in the part of the band used by systems operating in accordance with the provisions of No. 732, unless otherwise agreed by the affected administrations. In the part of the band where such systems are not operating, a value of -3 dB (W/4 kHz) is applicable. Application of the provisions of No. 953 apply to the use of the 1610 - 1626.5 MHz band. Reason Inclusion of the term "mean" is intended to clarify how the e.i.r.p. density limit should be measured. The text proposed for deletion at the end of this provision is unnecessary to protect the primary allocation status of the identified services and creates confusion and ambiguity concerning the primary status of the mobile-satellite service in the 1610-1626.5 MHz band. MHz MOD 1626.5 - 1660.5 Allocation to Services Region 1 Region 2 Region 3 1626.5 - 1631.5 MOBILE-SATELLITE (Earth-to-space) 722 726A MOD726C 726D 727 730 1626.5 - 1631.5 MOBILE-SATELLITE (Earth-to-space) 722 726A MOD726C 726D 727 730 1631.5 - 1634.5 MOBILE-SATELLITE (Earth-to-space) 722 726A MOD726C 726D 727 730 1634.5 - 1645.5 MOBILE-SATELLITE (Earth-to-space) 722 726A MOD726C 726D 727 730 1645.5 - 1646.5 MOBILE-SATELLITE (Earth-to-space) 722 726D 734B 1646.5 - 1656.5 MOBILE-SATELLITE (Earth-to-space) 722 726A 726D 727 730 MOD730C 735 1656.5 - 1660 MOBILE-SATELLITE (Earth-to-space) 722 726A 726D 727 730 MOD730C 1660 - 1660.5 RADIO ASTRONOMY MOBILE-SATELLITE (Earth-to-space) 722 726A 726D MOD730C 736 NOC 734C Reason To make allocations availiable to all Mobile Satellite services and to provide priority access and immediate availability for aeronautical and maritime distress and safety communications. MHz MOD 1675 - 1710 Allocation to Services Region 1 Region 2 Region 3 1675 - 1690 METEOROLOGICAL AIDS FIXED METEOROLOGICAL-SATELLITE (space-to-Earth) MOBILE except aeronautical mobile MOBILE SATELLITE (Earth-to-space) 722 735A 1690 - 1700 METEOROLOGICA L AIDS METEOROLOGICA L SATELLITE (space-to-Earth) MOBILE- SATELLITE (Earth-to-space) Fixed Mobile except aeronautical mobile 671 722 741 1690 - 1700 METEOROLOGICAL AIDS METEOROLOGICAL-SATELLITE (space-to-Earth) MOBILE-SATELLITE (Earth-to-space) 671 722 735A 740 742 1700 - 1710 FIXED METEOROLOGICA L- SATELLITE (space-to-Earth) MOBILE- SATELLITE (Earth- to-space) Mobile except aeronautical mobile 671 722 1700 - 1710 FIXED METEOROLOGICAL-SATELLITE (space-to-Earth) MOBILE except aeronautical mobile MOBILE-SATELLITE (Earth-to-space) 671 722 735A 743 NOC 671, 722, 740, 741, 742, 743, [735A] Note: If ITU-R Working Party 7C's draft new Recommendation regarding sharing between MetSats and MSS is approved by the Radiocommunication assembly or prior to WRC-95, the MetSat service could be suppressed from footnote 735A. Sharing between MetAids and MSS is also being addressed in Working Party 7C. If the appropriate sharing criteria are developed and approved for this situation, MetAids could also be suppressed. However, that work is not yet completed. MHz MOD 1930 - 2025 Allocation to Services Region 1 Region 2 Region 3 1930 - 1945 FIXED MOBILE 746A 1930 - 1945 FIXED MOBILE 746A 1930 - 1945 FIXED MOBILE 746A 1945 - 1970 FIXED MOBILE 746A 1945 - 1970 FIXED MOBILE Mobile-Satellite (Earth-to-space) 746A 1945 - 1970 FIXED MOBILE 746A 1970 - 1980 FIXED MOBILE 746A 1970 - 1980 FIXED MOBILE Mobile-Satellite (Earth-to-space) 746A MOD746B MOD746C 1970 - 1980 FIXED MOBILE 746A 1980 -1985 FIXED MOBILE 746A 1980 -1985 FIXED MOBILE Mobile-Satellite (Earth-to-space) 746A MOD746B MOD746C 1980 -1985 FIXED MOBILE 746A 1985 - 2010 FIXED MOBILE MOBILE-SATELLITE (Earth-to-space) 746A MOD746B MOD746C 2010 - 2025 FIXED MOBILE MOBILE-SATELLITE (Earth-to-space) 746A MOD746B NOC 746A MOD 746B The use of the bands 1985 - 2025 MHz and 2160 - 2200 MHz by the mobile-satellite service shall not commence before 1 January 2005 and is subject to the application of the coordination and notification procedures set forth in Resolution 46 (WARC-92). In the band 2160-2200 MHz coordination of space stations of the mobile-satellite service with respect to terrestrial services is required only if the power flux density or Fractional Degradation Percentage produced at the Earth's Surface exceeds the threshold , in Recommendation (TG 2-2/TEMP/89 (Rev2). In respect of assignments operating in this band, the provisions of Section II, paragraph 2.2 of Resolution 46 (WARC-92) shall also be applied to geostationary transmitting space stations with respect to terrestrial stations. MOD 746C In the United States, the use of the bands 1985 -2025 MHz and 2160 - 2200 MHz by the mobile-satellite service shall not commence before 1 January 1996. MHz MOD 2160 -2170 Allocation of Services Region 1 Region 2 Region 3 2160 - 2170 FIXED MOBILE MOBILE-SATELLITE (space-to-Earth) 746A MOD746B MOD746C 2160 - 2170 FIXED MOBILE MOBILE-SATELLITE (space-to-Earth) 746A MOD746B MOD746C 2160 - 2170 FIXED MOBILE MOBILE-SATELLITE (space-to-Earth) 746A MOD746B MOD746C Reason To make allocations to the Mobile Satellite service on a global basis. MHz MOD 2483.5 - 2500 Allocation of Services Region 1 Region 2 Region 3 2483.5 - 2500 FIXED MOBILE MOBILE-SATELLITE (space-to-Earth) Radiolocation 733F 752 753 753A 753B 753C MOD753F 2483.5 - 2500 FIXED MOBILE MOBILE-SATELLITE (space-to-Earth) RADIOLOCATION RADIODETERMINATIO N-SATELLITE (space-to-Earth) 753A 752 753D MOD753F 2483.5 - 2500 FIXED MOBILE MOBILE-SATELLITE (space-to-Earth) RADIOLOCATION Radiodetermination- Satellite (space-to-Earth) 753A 752 753C MOD753F NOC 733F, 752, 753, 753A, 753B, 753C MOD 753F The use of the band 2483.5-2500 MHz by the mobile-satellite service and the radiodetermination-satellite service is subject to the application of the coordination and notification procedures set forth in Resolution 46 (WARC-92). Coordination of space stations of the mobile-satellite and radiodetermination-satellite services with respect to terrestrial services is required only if the power-flux density produced at the Earth's surface exceeds: -150 dB (W/m2) in any 4 kHz band for angles of arrival between 0 and 5 degrees above the horizontal plane; -150 + 0.65 (ë-5) dB (W/m2) in any 4 kHz band for angles of arrival ë (in degrees) between 5 and 25 degrees above the horizontal plane; -137 dB (W/m2) in any 4 kHz band for angles of arrival between 25 and 90 degrees above the horizontal plane. These limits relate to the power flux-density which would be obtained under assumed free-space conditions. In respect of assignments operating in this band, the provisions of Section II, paragraph 2.2 of Resolution 46 (WARC-92) shall also be applied to geostationary transmitting space stations with respect to terrestrial stations. Reason To facilitate the introduction of mobile-satellite systems in this band while providing adequate protection of analog point-to-point and multipoint fixed systems in the band. Proposal to Amend Article 8 of the Radio Regulations MOD 855A In the band 13.75-14.0 GHz, the e.i.r.p. of any emission from an earth station in the fixed-satellite service shall be at least 68 dBW, and should not exceed 85 dBW, with a minimum antenna diameter of 4.5 meters. In addition the e.i.r.p., averaged over one second, radiated by a station in the radiolocation and radionavigation services towards the geostationary orbit shall not exceed 59 dBW. . See Recommendation ITU-R S.1068. MOD 855B In the band 13.75-14.0 GHz geostationary space stations in the space research service, for which information for advance publication has been received by the ITU-R prior to 31 January 1992, shall operate on an equal basis with stations in the fixed-satellite service; after that date new geostationary space stations in the space research service will operate on a secondary basis. Until 1 January 2000, stations in the fixed-satellite service shall not cause harmful interference to non-geostationary space stations in the space research and earth exploration-satellite services; after that date these non-geostationary space stations will operate on a secondary basis in relation to the fixed-satellite service. See Recommendations ITU- R S.1069 and ITU-R SA.1071. Reasons: Resolves 1 of Resolution 112 called for studies, with respect to the values given in No. 855A of the Radio Regulations relating to allocations in the band 13.75-14.0 GHz and to report the outcome at least one year before the next competent conference. ITU-R Task Group 4-4 was formed to perform the necessary studies. This Task Group completed its studies and confirmed the values given in No. 855A. Recommendation ITU-R S.1068 was developed with respect to the sharing of the fixed-satellite service with the radiolocation and radionavigation services. Resolves 2 of Resolution 112 called for studies with respect to the technical compatibility between the primary allocation to the fixed-satellite service (Earth-to-space) and the secondary allocations to the space research and Earth exploration-satellite services. ITU-R Task group 7-3 was established to study this compatibility taking into account the time frames given in No. 855B. Task Group 7-3 developed protection criteria for the secondary services. Task Group 4-4 considered constraints which would apply to the fixed-satellite service to meet these protection criteria within the time frames given in No. 855B. The two Task Groups, in close consultation, developed two companion Recommendations: ITU-R S.1069 and ITU-R SA.1071. These Recommendations provide further technical details with respect to the compatibility between the fixed-satellite services and these secondary services. Proposal to Amend Resolution 112 of the Radio Regulations SUP RESOLUTION No. 112 (WARC-92) Reason: Necessary studies called for in Resolution 112 have been conducted and recommendations have been approved. With modification to Nos. 855A and 855B Resolution 112 is no longer required. APPENDIX 2 Industry Advisory Committee Recommended Candidate Bands for Additional Allocations for MSS below 1 GHz Attachment C IWG-2 LOW EARTH ORBIT MSS BELOW 1 GHz CANDIDATE BANDS FOR ADDITIONAL ALLOCATIONS1) 12 December 1994 CANDIDATE FREQUENCY BAND (MHz) EXISTING ALLOCATIONS AND USE POTENTIAL LEO MSS ALLOCATION POTENTIAL SHARING SCENARIOS COMMENTS/NOTES U.S. INTERNATIONAL NON-GOVERNMENT GOVERNMENT PRIORITY ONE CANDIDATES [225-400 MHz] 225.0-235 MHz (Space-to-Earth) and 390-399.9Hz (Earth-to-Space) 312-315 MHz (Earth-to-Space) and 387-390 MHz (Space-to-Earth) None Fixed (FN G27 Military Only) Mobile (FN G27 Military Only) Mobile-Satellite (FN G100 235-322 and 335-399.9, Military Only) These bands are heavily used throughout the U.S. for critical military air traffic control and tactical training communications. Specific functions of tactical training include air-ground-air communications for combat weapons training carried out at and in the vicinity of all major air bases and military training areas in the U.S. Tactical and strategic military satellite communications, essential to linking the activities of ground, air, surface, and subsurface mobile platforms, are conducted in this band under G100. Also, rocket test and test data telemetry operations are performed in this band. 312-315 & 387-390 MHz Allocated Secondary to Non- GEO at WARC-92 (FN 641, Art 14) NATO Military Use Differs by Region/Freq. BROADCASTING (African countries only, 223-238 MHz) FIXED MOBILE AERONAUTICAL SPACE OPS. RADIO ASTRONOMY Uplink and Downlink CDMA - Low output power spread over multiple MHz in one uplink and one downlink band with 10% + s paration. Non- interference/no protection from existing services Low PFD in downlink FDMA Band segmentation - Dynamic channel avoidance FCC Has Proposed Allocation of 5 MHz at 225-230 MHz and 20 MHz at 380-400 MHz, Dependent on NATO Agreement International: 267-272 MHz Space Ops - Space-to-Earth 272-273 MHz SPACE OPS - Space- to-Earth 380-400 MHz possible TETRA for Europe. CEPT (ERO) planning 216-240 MHz for DAB after year 2005 Mobile Satellite service operating as secondary in 312-315 MHz and 387-390 MHz under Article 14 outside of U.S. (FN 641) 399.9-400.05 MHz (both directions) RADIONAVIGATION SATELLITE Commercial shipping makes extensive use of TRANSIT- SAT signals for radionavigation. RADIONAVIGATION SATELLITE TRANSIT-SAT (polar orbiting satellite) downlink transmissions in this band support worldwide navigation which expires 1 January 1997. Government use of the mobile-satellite service is limited by US319 to earth stations operating with nongovernment satellites. Region - All RADIONAVIGATION -SATELLITE Uplink or downlink FDMA and CDMA - Dynamic Channel Avoidance Possible In-Band Feeder Link Allocated in U.S. as primary uplink in NGSO process beginning 1/1/97; included on WRC-95 preliminary agenda 138-144 MHz (138-141 Space-to-Earth) (141-144 Earth-to-Space) None FIXED MOBILE This band is the main frequency band for the Aeronautical Mobile (OR) Service, and any changes to the current use would have to be coordinated among the European countries and the U.S. Region 1 AERO. MOBILE (OR) SPACE RESEARCH 600, 601, 602, 604 Region 2 FIXED MOBILE /RADIOLOCATION/ SPACE RESEARCH (Space-to-Earth) Region 3 FIXED MOBILE SPACE RESEARCH (Space-to-Earth) 599, 603 Uplink and / or Downlink FDMA and CDMA - Operation Similar to Existing NGSO Sharing Dynamic Channel Avoidance Low Output Power U.S. footnote G30: Fixed & Mobile "generally" limited to military operations, similar to 148.0-149.9 MHz 599: In Australia, band is allocated to broadcasting until that service can be moved to regional broadcast bands 603: In China, band is allocated to radio-location on primary basis PRIORITY TWO CANDIDATES 157.0375-174 MHz MARITIME MOBILE (part) LAND MOBILE (part) (May be scheduled for narrow-band use only in 1995) FIXED (part) MOBILE (part) Region 1 FIXED MOBILE (except aeronautical mobile) Region 2 & 3 FIXED MOBILE Space-to-ground direction FDMA sharing similar to 137-138 MHz band: - Band segmentation CDMA sharing: - low pfd at ground Wide band-width ideal for downlink for FDMA and CDMA systems: - FDMA wide channel selection - CDMA wide bandwidth allows reduced pfd at ground 616: 163-167 is Space Operation Service (S-g) in China (Article 14) 615: 162-174 is broadcasting in Morocco 617: 167-174 is broadcasting in Afghanistan, China, Pakistan 618: 170-174 is broadcasting in Japan 450-460 MHz LAND MOBILE Space Research and Space Operations (FN664 450 MHz) Remote pickup broadcast 450- 451, 455-456) Public safety, industrial, land transportation (451-454, 456- 459). Space Research and Space Operations (FN664 450 MHz) Veteran's medical programs depend upon the use of biomedical telemetry and telecommunications in conjunction with nongovernment medical activities. Some services considered public safety services. This band being considered for rechannelization Region - All FIXED MOBILE Uplink and Downlink, Including Potential for Feed Links CDMA Low Output Power Low PFD in Downlink Band Segmentation FDMA - Dynamic channel avoidance Secondary allocation to Space Research Easy to share with FDMA and CDMA MSS systems Potential TETRA band for Europe 470-512 MHz BROADCASTING: - Chan. 14 to 20 LAND MOBILE (Public safety, industrial, land transportation, domestic public) Broadcasting plans to give up its analog channels and the change to HDTV may free spectrum none Regions 1,2,3 BROADCASTING (8 MHz channels for channels 21-34 Reg 1) Region 2 Fixed & Mobile Region 3 FIXED & MOBILE Uplink and downlink, feederlinks Sharing easily accomplished with fixed and mobile systems if reallocation of broadcasting spectrum occurs due to low use of UHF channels Possible long-term NGSO MSS allocation 10 MHz for the NGSO MSS service should be allocated on a world-wide basis 512-806 MHz (less 608-614 MHz) BROADCASTING RADIO ASTRONOMY (608- 614 MHz) Broadcasting plans to give up its analog channels and the change to HDTV may free spectrum RADIO ASTRONOMY (608-614 MHz) Region 1 BROADCASTING (Ch 21-34 & 35-69) FIXED Region 2 BROADCASTING RADIO ASTRON. Mobile Satellite (E-S) - 608-614 MHz Region 3 FIXED, MOBILE, BROADCASTING RADIOLOCATION Uplink and downlink, feederlinks Sharing easily accomplished with fixed and mobile systems if reallocation of broadcasting spectrum occurs due to low use of UHF channels Possible long-term NGSO MSS allocation 10 MHz for the NGSO MSS service should be allocated on a world-wide basis LOWEST PRIORITY CANDIDATES 806-824 MHz LAND MOBILE Private land mobile (806-824) Domestic public land mobile (824-849, 869-894) Aeronautical public correspondence-airphone (849- 851, 894-896) General purpose mobile (901- 902) Some portion of this band is used for high-power U.S. Navy shipborne long-range search radars under footnotes US268 and G2. These radars serve a critical role in defense of the fleet, and are also used while in port. Region 2 FIXED MOBILE BROADCASTING Space-to-Earth FDMA and CDMA Band Segmentation Low Output Power Need to Share With Naval Applications Without Interference Heavy use of SMR in band May be available for NGSO MSS use, but is low priority due to heavy use and high powered systems 896-901 MHz (is portion of 890-902 MHz band) LAND MOBILE (12.5 KHz channels paired with 935-941 MHz band) Radiolocation (limited to miliary services) Region 1 FIXED, MOBILE BROADCASTING Region 2 FIXED, MOBILE Region 3 FIXED, MOBILE BROADCASTING Radiolocation Earth-to-space (in conjunction with 935-941 MHz band) FDMA and CDMA sharing with private land mobile in the same bands - Band segmentation - Low output power - Dynamic channel avoidance Growing use of private land mobile in the U.S. 932-935 MHz and 941-944 MHz FIXED This band is paired with the 941-944 MHz band and channelized for point-to-point voice and data services. The 932-932.5 MHz end of the band is used for the single channel response from a remote location for point to multipoint multiple address services. FIXED The 932-935 MHz and 941-944 MHz bands are shared by government and nongovernment fixed service users. It has recently been allocated for Federal use. Use for low-capacity fixed systems is anticipated. Many Federal agencies expect heavy government and nongovernment use for point-to-point and point-to-multipoint communications. Functions include support for aviation activities, remote meter ready for electric power marketing and light route radio relay. The latter includes recommendation of light route systems from higher bands. REGION 2 FIXED MOBILE except aeronautical mobile Radiolocation 932-935 Uplink 941-944 Downlink Possible Feeder Links in Uplink FDMA and CDMA Dynamic Channel Avoidance Low Output Power Low PFD in Uplink Geographic Separation Band Segmentation Fixed Channelization Offers Possible Use of Interstitial Spectrum in Both Directions Wide-band spread-spectrum with attendant low pfd's is practical use low priority for NGSO MSS use due to large number of applicants for use of band (60,000) 935-941 MHz LAND MOBILE Private land mobile trunked and conventional systems in 12.5 KHz channels paired with 896-901 MHz. Radiolocation limited to military services (G2) on a secondary basis to non-government LAND MOBILE operations (G2, US116, US215, US268) REGION 2 FIXED MOBILE except aeronautical mobile Radiolocation Uplink FDMA and CDMA - Dynamic Channel Avoidance Low Output Power Low PFD in Uplink Geographic Separation Band Segmentation Fixed channelization offers possible use of interstitial spectrum in both directions Wide-band spread-spectrum with attendant low pfd's is practical use 944-960 MHz FIXED Auxiliary broadcasting, Domestic public fixed, International fixed public, Private fixed microwave. The 944-952 MHz portion is used primarily for radio broadcast stations studio-to-transmitter links (STLs) and intercity relays. These carry frequency modulated stereophonic audio program material, plus ancillary carriers for remote control of transmitters and Subsidiary Communications Authorization (SCA) channels. The 952-953 MHz portion is used in combination with 928- 929 MHz. The 953-960 MHz portion is primarily used for fixed point-to-point communications. The band is segmented as 953.00-956.15 MHz for go and 956.55- 959.75 MHz for return operation. Region 1 FIXED MOBILE except aeronautical mobile BROADCASTING 703 Region 2 FIXED Mobile Region 3 FIXED MOBILE BROADCASTING Uplink and Downlink FDMA and CDMA Dynamic Channel Avoidance Low Output Power Low PFD in Uplink Geographic Separation Band Segmentation Fixed Channelization Offers Possible Use of Interstitial Spectrum in Both Directions Wide-band spread-spectrum with attendant low pfd's is practical use addalloc.tbl 1) Basic Assumptions for All Candidate Allocation No Displacement of Existing Services No Harmful Interference to Existing Services APPENDIX 3 Comments Filed in Response to NOI in IC Docket No. 94-31: 1.Aeronautical Radio, Inc. 2.AirTouch Communications 3.American Mobile Satellite Corporation 4.American Radio Relay League 5.Association of American Railroads 6.Association for Maximum Service Television, Inc. & Other Major Television Broadcasting Entities 7.COMSAT Mobile Communications 8.COMSAT World Systems 9.Constellation Communications, Inc. 10. DBS Industries, Inc. 11. Ellipsat Corporation 12. GE American Communications, Inc. 13. George Jacobs & Associates & FCC International Broadcast Stations Licensees 14. Hughes Space and Communications Company & Hughes Communications Galaxy, Inc. 15. Intelligent Vehicle-Highway Society of America 16. Loral/Qualcomm Partnership, L.P 17. Motorola Satellite Communications, Inc. & Iridium, Inc. 18. National Association of Shortwave Broadcasters 19. Orbital Communications Corporation 20. STARSYS Global Positioning, Inc. 21. Teledesic Corporation 22. TRW, Inc. 23. United States Satellite Broadcasting Company, Inc. Reply Comments to NOI in IC Docket No. 94-31: 1.Aerospace and Flight Test Radio Coordinating Council 2.American Mobile Satellite Corporation 3.American Radio Relay League 4.Association for Maximum Service Television, Inc. 5.AT&T Corp. 6.COMSAT Mobile Communications 7.COMSAT World Systems 8.CTA Incorporated 9.Ellipsat Corporation 10. GE American Communications, Inc. Reply Comments to NOI in IC Docket No. 94-31 continued: 11. Hughes Space and Communications Company & Hughes Communications Galaxy, Inc. 12. Loral/QUALCOMM Partnership, L.P. 13. Motorola Satellite Communications, Inc. & Iridium, Inc. 14. National Association of Broadcasters 15. PanAmSat, L.P. 16. Primosphere Limited Partnership 17. Securicor Datatrak Limited 18. Teledesic Corporation 19. TRW, Inc. - 2 -