Transcript Slide 1

Headquarters U.S. Air Force
Integrity - Service - Excellence
WRC-07 Results and Domestic
Implementation Brief
Brian K. Ramsay
The MITRE Corporation in Support of the
Air Force Frequency Management Agency
October 30, 2008
Agenda

Introduction and Background
 WRC Agenda Item 1.5
 Expectations from WRC-2007
 Results from WRC-07
 Domestic Implementation
 IRAC Ad Hoc 206 Action
 NTIA and FCC Action
 Other Factors
 Summary
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U.S. Frequency Allocation
Table (1975)
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U.S. Frequency Allocation
Table (2006)
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WRC Agenda Item 1.5
Background and Overview
Additional spectrum sought at WRC-07 for
Aeronautical Mobile Telemetry (AMT) for Flight
Testing at Designated Ranges
 Additional
650 MHz proposed for both Military
and Civilian flight test telemetry needs in the U.S.;
slightly more than 100 MHz elsewhere
(particularly in Europe)
 Requirement
driven by escalating need for
telemetry data for testing of advanced
aeronautical systems
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Background/Overview (cont.)



Documented U.S. Requirement of 650 MHz…all below
7 GHz!
ITU studied several bands: 4400-4940 MHz, 5091-5150
MHz, 5150-5250 MHz, and 5925-6700 MHz; all with
heavy use by incumbent radio services
Technical studies conducted in the ITU over 3 year
period
 Completed and approved in June 2007
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Expectations going into WRC-07

5091-5150 MHz likely the only band that would be
recognized globally as a “harmonized band”
 4400-4940 and 5925-6700 MHz bands politically
sensitive in some regions despite studies showing
manageable impact to incumbent services
 Possible to gain 4400-4940 and 5925-6700 MHz in
ITU Region 2 (Americas) based on extensive
discussions within CITEL on compatibility
mechanisms
 European countries wanted access to 5150-5250
MHz in Region 1, which was problematic for U.S. due
to Globalstar global feederlink use
 Strong global opposition from FSS community to
use of 4 and 6 GHz bands.
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WRC-07 Results

For most of the telemetry spectrum, WRC-07 took a regional
approach…which involved compromise on all sides:
 4400-4940 MHz and 5925-6700 MHz approved for use in
Region 2 (with the addition of Australia in Region 3 for
the 4400-4940 MHz band only)
 5091-5150 MHz globally
 5150-5250 MHz in Region 1 (with the exception of the
Arab Group countries but with the inclusion of Brazil in
Region 2)

Bands are heavily used so “smart” AMT systems design is
a must to exploit this spectrum

Domestic implementation in the U.S. has just begun!
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U.S. Domestic
Implementation
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U.S. Domestic Implementation

IRAC Ad Hoc 206 considers WRC results and sends proposed
modification to domestic allocation table to FCC for their consideration
 AF, in coordination with NASA, other Federal agencies, and AFTRCC,
has submitted a proposal for modification of the domestic Frequency
Allocation Table to include results from WRC-07
 FCC obligated to hold open public proceeding on
reallocation…challenge will be to “hold the line” and not accept
additional restrictions on telemetry use beyond what was negotiated
prior to and during the WRC
 Once FCC and NTIA reconcile their proposed table modification and
FCC finishes its rulemaking, access to WRC-07 bands within the U.S.
is possible
 Non-Federal advocacy by AFTRCC and industry is vital to satisfy the
totality of the spectrum access requirement.
 Process of domestic implementation for the U.S. can take 1-2 years at a
minimum…longer if political delays are significant
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Summary
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Effort to secure additional telemetry spectrum at
WRC-07 was a huge success and tribute to
international cooperation and consensus-building
prior to and during the WRC
Ability to satisfy spectrum requirements depends
not only on the amount of spectrum we have gained
access to but also on how efficiently and effectively
we use our spectrum!
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Questions?
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