Archived — Interim Arrangement Concerning the Sharing between Canada and the United States of America on Local Multipoint Communication Systems, the Local Multipoint Distribution Service and Certain Other Services in Parts of the Frequency Bands 27.35‑28.35 GHz, 29.1‑29.25 GHz, and 31.0‑31.3 GHz

TRAA
Spectrum Management and Telecommunications Policy
Terrestrial Radiocommunication Agreements and Arrangements

Note

All persons making use of this consolidation are reminded that the documents included herein are provided only for convenience of reference. This consolidation is for the guidance of those engaged in radiocommunications in Canada. The information contained in this document is subject to change without notice. While every reasonable effort has been made to ensure accuracy, no warranty is expressed or implied. For more details, please contact the Spectrum Engineering Branch.

All notes in square brackets [ ] were added for clarification purposes.

Prepared by:

Industry Canada
Radiocommunications and Broadcasting Regulatory Branch
300 Slater Street
Ottawa, Ontario
K1A 0C8

via e-mail: spectrum_pubs@ic.gc.ca

All spectrum publications are available on the Internet at:
http://www.ic.gc.ca/spectrum

Publication Date: March 2001

Confirmation of Acceptance

The attached document is the interim sharing arrangement between the Federal Communications Commission, the National Telecommunications and Information Administration (NTIA) and the Department of Industry (Industry Canada) concerning Local Multipoint Communication systems, the Local Multipoint Distribution Service and certain other services in parts of the 27.35 - 28.35 GHz, 29.1 - 29.25 GHz and 31.0 - 31.3 GHz frequency bands. The Federal Communications Commission, NTIA and Industry Canada intend to implement the attached arrangement, to the extent permissible under their respective domestic laws, pending the amendment of the Agreement Concerning the Coordination and Use of Radio Frequencies Above Thirty Megacycles per Second, with Annex, as amended,Footnote 1 to incorporate the arrangement's terms.

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Donald Abelson
Chief, International Bureau
Federal Communications Commission

Date: December 1, 2000

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William T. Hatch
Associate Administrator
Spectrum Management
National Telecommunications and Information Administration

Date: December 4, 2000

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Michael Binder
Assistant Deputy Minister
Spectrum, Information Technologies & Telecommunications
Industry Canada

Date: December 21, 2000

Footnotes

Footnote 1

Exchange of Notes at Ottawa, Canada, October 24, 1962. Entered into force October 24, 1962. See USA: Treaties and Other International Acts Series (TIAS) 5205; CAN: Canada Treaty Series (CTS) 1962 No. 15. Agreement revision Technical Annex to the Agreement of October 24, 1962 (TIAS 5205/CTS 1962 No. 15) Effected by Exchange of Notes at Ottawa, Canada, June 16 and 24, 1965. Entered into force June 24, 1965. USA: TIAS 5833/CAN: CTS 1962 No. 15, as amended June 24, 1965.

Return to footnote 1 referrer

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1. Scope

1.1 This interim arrangement (Arrangement) between the Federal Communications Commission (FCC) and the National Telecommunications and Information Administration (NTIA) of the United States of America (U.S.) and the Department of Industry of Canada (Industry Canada), herein referred to as the Agencies, concerns the sharing between Local Multipoint Communication systems (LMCS), the Local Multipoint Distribution Service (LMDS), and certain other services in parts of the 27.35 - 28.35 GHz, 29.1 - 29.25 GHz and 31.0 - 31.3 GHz bands.Footnote 1

1.2 The responsible coordinating agency for the U.S. is NTIA for the 27.35 - 27.5 GHz band and the FCC for all other bands covered by this Arrangement. The responsible coordinating agency for Canada is Industry Canada.

1.3 This Arrangement is subject to review at any time at the request of either Administration.

2. Use of the Bands

2.1 In Canada, the 27.35 - 28.35 GHz (27 GHz) band is designated for LMCS. In the U.S., the 27.35 - 27.5 GHz portion of the band is designated for Federal Government fixed and mobile systems and inter-satellite service and the 27.5 - 28.35 GHz portion is designated for LMDS.

2.2 The 29.1 - 29.25 GHz (29 GHz) band is designated for LMDS in the U.S. and is allocated to fixed and mobile services in Canada.Footnote 2 The 31.0 - 31.3 GHz (31 GHz) band is designated for LMDS and fixed point-to-point microwave systems in the U.S. and is allocated to fixed and mobile services in Canada. As of the date of this Arrangement, Canada had not designated a radio service use for the 29 and 31 GHz bands.Footnote 3 This Arrangement does not apply to mobile services in these bands.

3. General Principles

3.1 The 27 GHz, 29 GHz and 31 GHz bands are to be shared on an equal basis along the border and, to the extent possible, the Administrations shall have full use of these frequencies or sub-bands within their respective countries.

3.2 Licensees are expected to take full advantage of interference mitigation techniques such as antenna discrimination, polarization, frequency offset, shielding, site selection, and/or power control to facilitate the coordination of systems.

3.3 All results of analyses and/or licensee agreements shall be retained by the licensees and be made available to the Agencies upon request.

3.4 If a license is transferred, the sharing agreement(s) (see Section 4) or coordination agreement(s) (see Section 5) developed by the former licensee shall continue to apply with respect to the new licensee until a new agreement is reached.

3.5 The Agencies reserve the right to impose appropriate technical limitations to facilitate reasonable implementation and operation of proposed or existing systems.

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4. Coordination in the 27 GHz Band

4.1 27.5 - 28.35 GHz Band - Coordination of LMDS and LMCS systems in the 27.5-28.35 GHz band shall be carried out by the licensees for the respective service areas on both sides of the border, as indicated in Appendix A. This coordination shall be in accordance with Sections 4.3-4.5.

4.2 27.35 - 27.5 GHz Band - For the purposes of coordinating Canadian LMCS systems and U.S. fixed and mobile systems in the band 27.35-27.5 GHz, the NTIA represents the U.S. fixed and mobile use of this band.Footnote 4 Coordination of U.S. fixed and mobile stations with Canadian LMCS systems shall be carried out by NTIA, and the appropriate LMCS licensee(s), as indicated in Appendix A, through Industry Canada. This coordination shall be in accordance with Sections 4.3-4.5. In addition, fixed stations operating in Canada and the U.S., and U.S. inter-satellite systems, are subject to the technical limits described in Appendix D.

4.3 Cross Border Sharing Agreements - Licensees on both sides of the border are encouraged to develop sharing agreements that will facilitate reasonable and timely development of LMDS and LMCS.Footnote 5 These agreements should allow for the provision of service by each licensee within its licensed service area to the maximum extent possible. If there is a sharing agreement between the licensees, that agreement shall be followed rather than the coordination process set forth in Section 4.4.

4.4 Coordination in the Absence of a Sharing Agreement - If there is no sharing agreement between the licensees, then proposed facilities shall be coordinated on an individual basis according to the process described below.

4.4.1 The following power flux density (pfd) levels from the emissions of each transmitting station shall apply:

4.4.1.a Power flux density A ('pfd A') has a value of -114 dBW/m2 in any 1 MHz band.

4.4.1.b Power flux density B ('pfd B') has a value of -94 dBW/m2 in any 1 MHz band.

4.4.1.c Power flux density is calculated at the service area boundary of the neighboring service area(s) on the other side of the border.Footnote 6 Power flux density is calculated using accepted engineering practices, taking into account such factors as propagation loss, atmospheric loss, curvature of the Earth, and gain of the antenna in the direction of the service area boundary. The pfd level at the service area boundary shall be the maximum value for elevation points up to 500 meters above local terrain elevation. (See Appendix B for a sample calculation of power flux density at the service area boundary.)

4.4.2 If calculations demonstrate that facilities would generate a power flux density less than or equal to pfd A at the applicable service area boundary(ies), then no coordination is required.

4.4.3 If calculations demonstrate that facilities would generate a power flux density greater than pfd A, but less than or equal to pfd B at the applicable service area boundary(ies), then deployment of facilities is subject to successful coordination between the affected licensees in accordance with the following coordination process:Footnote 7

4.4.3.a The licensee must notify the respective licensee(s), by registered mail, of its intention to deploy facilities and include the appropriate information necessary to conduct an interference analysis. If no licensee exists in affected service areas on the other side of the border, deployment may proceed.

4.4.3.b The recipient of the notification must respond within 30 days of receipt to indicate any objection to the deployment. Such objections may be based only on harmful interference to existing systems.Footnote 8

4.4.3.c If there is no objection raised, the deployment may proceed.

4.4.3.d If an objection is raised, the respective licensee(s) must work in collaboration to develop an agreement regarding the proposed facilities before their deployment. It is expected that the time frame to develop such an agreement should not exceed 30 days.

4.4.3.e Proposed facilities must be operational within 6 months from the conclusion of coordination, otherwise coordination must be re-initiated pursuant to Section 4.

4.4.4 If calculations demonstrate that facilities would generate a power flux density greater than pfd B at the applicable service area boundary(ies), then deployment of facilities is subject to the consent of the licensee(s) for that (those) service area(s) on the other side of the border.Footnote 9 If no licensee exists in the affected service area(s) on the other side of the border, deployment of facilities may proceed. In the event that new licensee(s) are authorized in the affected service area(s), the facilities must be modified in a timely manner to meet the pfd B level, unless an agreement can be reached between the affected parties.

4.5 In the event a satisfactory sharing agreement or a successful coordination between the licensees is not reached, then the respective Administrations shall be informed.

5. Coordination in the 29 GHz and 31 GHz Bands

5.1 Each station of fixed systems in Canada and LMDS or fixed systems in the U.S. generating a pfd signal of less than or equal to –105 dBW/m2 in any 1 MHz band at the Canada/U.S. border does not require coordination. Stations with emissions exceeding the pfd value of –105 dBW/m2 in any 1 MHz band at the Canada/U.S. border will require prior coordination before deployment.Footnote 10 For the purposes of coordination with Canada, coordination is to be carried out with Industry Canada.Footnote 11 For the purposes of coordination with the U.S., coordination is to be carried out with the U.S. licensee(s) in the Basic Trading Area(s) (BTA(s))Footnote 12 where the pfd signal exceeds –105 dBW/m2 in any 1 MHz.

5.2 Power flux density is calculated at the Canada/U.S. border.Footnote 13 Power flux density is calculated using accepted engineering practices, taking into account such factors as propagation loss, atmospheric loss, curvature of the Earth, and gain of the antenna in the direction of the Canada/U.S. border. The pfd level at the Canada/U.S. border shall be the maximum value for elevation points up to 500 meters above local terrain elevation. (See Appendix C for a sample calculation of power flux density at the Canada/U.S. border.)

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