Transcript The $20 Billion Question: Can Satellite and Terrestrial

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C-Band Satellite Services and IMT
Protections for Satellite Services
Secured by WRC-07
Matthew W. Botwin
Managing Director, The Regent Square Group
and
Chairman, GVF Regulatory Working Group
C Band Spectrum 3400 - 4200 MHz
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• Agenda Item 1.4 for the World Radiocommunication Conference
2007 (WRC-07) addressed whether the 3400 MHz – 4200 MHz
band (C-band) should be identified for International Mobile
Telecommunications (IMT) on a global basis with the longstanding
primary allocation for fixed satellite services (FSS).
• WRC-07 rejected a global identification for IMT in the C-band
• WRC-07 adopted new footnotes in the Radio Regulations to identify
the 3400 MHz – 3600 MHz band for use by IMT, but only in the
countries that are listed in those footnotes (opt-in countries).
Additional FSS Protections
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To protect C-band earth stations in countries that are
near opt-in countries, the footnotes require IMT
operators (and regulators in opt-in countries) to:
1. coordinate with affected administrations
2. in some regions, meet power flux-density (“pfd”) limits
at the border
The footnotes adopted by WRC-07 do not address
protection at the national level. Protection of earth
stations from IMT networks deployed in the same
country should be dealt with by discussion with the
national regulator.
Steps to Protect Your Satellite Network
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• Coordination requirements are triggered for C-band
earth stations that are included in the ITU Master
Register in affected countries.
• Earth station operators should therefore ensure that
some stations near borders in every operating country
are notified according to RR provision 9.17 so they are
included in the ITU Master Register
• E/S operators should contact the regulators in their
operating countries to ensure:
– Regulators refrain from authorizing domestic IMT networks and
require any that do get licensed to ensure protection of satellite
earth stations
– Regulators respond promptly (within 120 days) to requests for
coordination between IMT and satellite networks
ITU REGION 1
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In the 81 opt-in countries in Region 1, the 3400 MHz – 3600 MHz
Brazilian
band
was allocated effective November 10, 2010 to mobile services
(including IMT) on a co-primary basis.
Region 1 opt-in countries include Albania, Algeria, Germany, Andorra,
Saudi Arabia, Austria, Azerbaijan, Bahrain, Belgium, Benin, Bosnia and
Herzegovina, Botswana, Bulgaria, Burkina Faso, Cameroon, Cyprus,
Vatican, Côte d'Ivoire, Croatia, Denmark, French Overseas Departments
and Communities in Region 1, Egypt, Spain, Estonia, Finland, France,
Gabon, Georgia, Greece, Guinea, Hungary, Ireland, Iceland, Israel, Italy,
Jordan, Kuwait, Lesotho, Latvia, Macedonia, Liechtenstein, Lithuania,
Malawi, Malta, Morocco, Mauritania, Moldova, Monaco, Mongolia,
Montenegro, Mozambique, Namibia, Niger, Norway, Oman, Netherlands,
Poland, Portugal, Qatar, Syria, Congo, Slovakia, Czech Rep., Romania,
United Kingdom, SanMarino, Senegal, Serbia, Sierra Leone, Slovenia,
South Africa, Sweden, Switzerland, Swaziland, Togo, Chad, Tunisia,
Turkey, Ukraine, Zambia and Zimbabwe.
Region 1 Protections
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IMT systems in Region 1 countries are constrained by the
following requirements near the border:
PFD Limits: Mobile operators must ensure that the pfd produced at 3
meters above ground does not exceed –154 dBW (m2 · 4 kHz) for
more than 20 percent of the time at the border of the territory of any
other administration
Coordination Requirement: The IMT operator’s administration must
send a request for coordination to the Bureau with all applicable
information required by Appendix 4 of the Radio Regulations.
Coordination is necessary with respect to all services pursuant to
provision 9.21 and with satellite earth stations pursuant to provision
9.18.
Region 1 Protections continued
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The Bureau will then identify all administrations with which the
requesting administration must coordinate, and publish the
coordination information in the International Frequency Information
Circular (“BR IFIC”).
Administrations receiving a request for coordination must respond
within four months of the publication, otherwise the coordination
obligation is waived.
If coordination is unsuccessful and an agreement is not reached
with an affected administration, IMT services must operate on a
non-interference/non-protected basis. Such IMT operators must
shut down any operations that cause interference to primary
services.
Region 2
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In the 14 opt-in countries in Region 2, the 3400 MHz – 3500 MHz band was
allocated by footnote to mobile services (including IMT) on a co-primary basis
subject to coordination with affected administrations pursuant to 9.21
Opt-in countries in Region 2 include Argentina, Brazil, Chile, Costa Rica, Cuba,
Dominican Republic, El Salvador, Guatemala, Mexico, Paraguay, Suriname,
Uruguay, Venezuela and French Overseas Departments and Communities in Region
2.
There are no pfd limits in the applicable footnote for Region 2. Power limits, as well
as other operational conditions, however, may be imposed by regulators pursuant to
the 9.18 and 9.21 coordination process. Earth station operators should encourage
regulators to adopt such requirements.
If coordination is unsuccessful and an agreement is not reached with the affected
administration, mobile services must operate on a non-interference/non-protected
basis.
Such mobile operators must shut down any operations that cause
interference to primary services.
Region 3
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In Region 3 there are three separate footnotes for different groups of opt-in
countries. For services in the 3400 MHz – 3500 MHz band, the opt-in countries
are separated into two groups:
Group A: (Korea, Japan and Pakistan) the 3400 MHz – 3500 MHz band is already
allocated to the mobile service and is identified for IMT.
•The pfd limits described above for Region 1 apply.
•IMT operations within the coordination area of a notified satellite earth station
must coordinate pursuant to provision 9.18.
Therefore, notification of earth stations prior to IMT deployment is essential.
Group B:
(Bangladesh, China, India, Iran, New Zealand, Singapore)
IMT operations are restricted by the same constraints that apply for Region 1.
The 3500 MHz – 3600 MHz band has also been identified for IMT in opt-in
countries in Region 3. In this band, IMT operations in Bangladesh, China, India,
Iran, New Zealand, Singapore and the French Overseas Communities in Region 3
are restricted by the same constraints described for Group A in the 3400 MHz –
3500 MHz band described above.