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Frequency Matters

Frequency Matters. NOAA Satellite Conference For Direct Readout, GOES/ POES , and GOES-R/ JPSS Users April 9, 2013 Presented by Mark Mulholland Senior Advisor/Program Executive, NESDIS AA. Agenda. Review of future L-Band spectrum auction

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Frequency Matters

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  1. Frequency Matters NOAA Satellite Conference For Direct Readout, GOES/POES, and GOES-R/JPSS Users April 9, 2013 Presented by Mark Mulholland Senior Advisor/Program Executive, NESDIS AA

  2. Agenda • Review of future L-Band spectrum auction • Schedule of events leading to spectrum auction • International aspects • Non-federal user implications • Panel discussion

  3. NOAA’s L-Band Environment LightSquared leases LightSquared wants 15 MHz Designated For Sharing Today POES/MetOp 2016 - 2030 MHZ 1695 1680 1685 1670 1690 1675 1710 Radiosondes JPSS LRD (1707) GOES-R Rebroadcast Post-2030 Commercial 1710 - 1755 TLMHRIT EMWIN DCPR Adjacent Bands Radiosondes POES & MetOp Radiosondes

  4. Why Us??? You Are Here Source: The Great Radio Spectrum Famine, IEEE Inside Technology, October 2010, http://spectrum.ieee.org/telecom/wireless/the-great-radio-spectrum-famine/0

  5. Our Competitors

  6. The Bigger Picture • Broadband industry prefers pairing of spectral bands • One band for phone-to-tower • One band for tower-to-phone • Adjacent 2095-2110 MHz band not identified for auction • Broadband industry desires to occupy band adjacent to existing band • National Association of Broadcasters objects, citing public safety concerns 1675 16951710 1755 1780 Polar Ops Advanced Wireless Service -1 (already licensed) Space-Ground Link System (SGLS) ↑ Likely pairing Logical pairing paired channels Broadcast Auxiliary Service (BAS) 2075 2095 2110 2155 2180 Advanced Wireless Service -1 (already licensed) slated for auction

  7. Key Issue Evolution 2011 2013 GOES and Polar bands might be auctioned Polar band will be auctioned Sharing within five years ( NTIA report) Sharing within three years (U.S. law) Non - federal users unprotected by zones Non - federal users unprotected by zones Little known about broadband plans Much more known about broadband plans 18 exclusion zones 27 coordination zones (approval cycle) NOAA satellite options to be studied Most studies complete; modifications made Funding not available for implementation Funding not available for implementation Unknown international impacts World Radio Conference 2015 agenda item NPOESS JPSS with Free Flyer Lightsquared plans did not involve NOAA Lightsquared plans may impact NOAA X - Band primarily used for earth science X - Band supports operational forecasting Some awareness of polar satellite value Increased awareness of polar satellite value

  8. Fast-Track Critical Sites -- 2010 Polar Sites In Red

  9. Additional Critical Sites • Revisions and additions were a result of: • Multiple sites originally protected under one large exclusion zone now require separate coordination zones • Increased concerns about adjacent band interference • Relocation of critical operations • 19 exclusion zones replaced by 27 coordination zones

  10. Critical Sites – 2013 NWS Anchorage, Alaska Typical coordination zone : • POES: 40 km • GOES: 10 km

  11. Exclusion Versus Coordination Zones • Exclusion Zone: A geographical area within which commercial broadband operations are not permitted in certain frequency bands • Coordination Zone: A geographical area within which commercial broadband operations may be permitted in certain frequency bands • Advantages of coordination zones • Requires all broadband operators to coordinate with us every time they want to operate inside a zone • Responds to changes in broadband industry standards • NOAA can still say “No” • Allows NOAA to say “yes” when appropriate

  12. Top 100 Broadband Markets

  13. Timeline for Regulatory Activities Expect broadband network use of the spectrum by 2016 ~ 2018 WRC-15 Bill Signed Transition Plan Auction Start 1695-1710 MHZ Identified Begin vacating Federal users Federal NTIA planning for reallocation and reaccommodation Studies Network build-out requirements FCC License Applications & Auction Rule Making Licensees Deployment Private Sector Studies Standardization Work 13

  14. International Aspects Broadband industry desires commonality in global standards CGMS committed to common requirements and operations standards World Radio Conference - 15 (WRC-15) agenda item will address additional spectrum for broadband • Agenda items will address both L-Band and X-Band spectrum • U.S. L-Band implementation will already be underway Since U.S. actions will lead WRC, international partners should plan for a transition period 14

  15. Non-Federal User Implications • High probability of protection if you are in or near a coordination zone • High probability of interference if you are in or near one of the Top 100 broadband markets • Lower probability of interference if you are located in a rural area outside one of the Top 100 markets

  16. Interference Dynamics • Terrestrial Emission may interfere with • Downlink Data • Tracking of Satellite • Depending on • Relative Position • Relative Signal Strength • Operating Frequency • Bandwidth • Possible causes: In-band, adjacent band, ducting Polar Satellite Motion of Tracking Antenna can align with Terrestrial Emitter Terrestrial Emission Motion of Antenna Tracking Station Receiver Band Terrestrial Emission Tracking Station Tracking Band Frequency Unprotected User – University of Delaware

  17. Suggested Mitigation Concepts • Satellite operators • Maximize use of 1697.5 MHz for polar operations • Consider use of relay satellites for future systems • Users located outside coordination zones • Increase reflector size to increase gain • Remote antennas with terrestrial communications • Know where local cell towers are located and assess your probability of interference • Assess if direct downlink is absolutely required • Users located inside coordination zones • Assess experiences of users outside coordination zones • You may not be inside a coordination zone tomorrow • End user equipment manufacturers • Consider filter design and other technical solutions • Consider partnerships with telecoms to jointly develop procedural and technical solutions

  18. Panel discussionquestions & answers

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