Latin American Spectrum Conference 2012 Mexico City October 24-25, 2012

1. Latin American Spectrum Conference 2012 Mexico City October 24-25, 2012 Session on The Possibilities of 700MHz October 25th 15.00 – 17.30 Stephen A. Wilkus

2. Sustaining the RevolutionThe potential of 700 MHz Spectrum Stephen A. WilkusOctober 25, 2012

3. The Benefits of Wireless Broadband Social and Economic Benefits Currently, “there are over 6 billion mobile phone subscribers, 75% of the world’s population has access to a mobile phone, more than have access to a bank account, electricity or even clean water.” (World Bank 2012) Developing countries are “more mobile” than developed, and are developing unique applications and services to empower local economies. The world is increasingly “flat,” with the world’s information available to all. Broadband growing faster in developing countries with over a 200% growth rate. A 2008 Deloitte & Touche study found that the mobile industry in 6 countries was responsible for 3.7% to 6.2% growth in GDP and 0.2% to 1.1% growth in employment A study by McKinsey & Company on Latin American countries stated that the combined GDP could increase by up to $70 billion, and add up to 1.7 million more jobs Enriching & Developing people with access to “Symmetrical information”

4. US Experience at 700 MHz early 2009 Used with Permission; Jeff Engel, D. Roberson, of IIT with funds provided by the National Science Foundation Movie available at: http://www.youtube.com/watch?v=h-Ffq1kCvas

5. US Experience at 700 MHz Mid 2009 Used with Permission; Jeff Engel, D. Roberson, of IIT with funds provided by the National Science Foundation Movie available at: http://www.youtube.com/watch?v=h-Ffq1kCvas

6. US Experience at 700 MHz early 2010 Used with Permission; Jeff Engel, D. Roberson, of IIT with funds provided by the National Science Foundation Movie available at: http://www.youtube.com/watch?v=h-Ffq1kCvas

7. US Experience at 700 MHz late 2010 Used with Permission; Jeff Engel, D. Roberson, of IIT with funds provided by the National Science Foundation Movie available at: http://www.youtube.com/watch?v=h-Ffq1kCvas

8. US Experience at 700 MHz early 2011 Used with Permission; Jeff Engel, D. Roberson, of IIT with funds provided by the National Science Foundation Movie available at: http://www.youtube.com/watch?v=h-Ffq1kCvas

9. US Experience at 700 MHz mid 2011 Used with Permission; Jeff Engel, D. Roberson, of IIT with funds provided by the National Science Foundation Movie available at: http://www.youtube.com/watch?v=h-Ffq1kCvas

10. US Experience at 700 MHz mid 2011 Used with Permission; Jeff Engel, D. Roberson, of IIT with funds provided by the National Science Foundation Movie available at: http://www.youtube.com/watch?v=h-Ffq1kCvas

11. US Experience at 700 MHz current LTE Used with Permission; Jeff Engel, D. Roberson, of IIT with funds provided by the National Science Foundation Movie available at: http://www.youtube.com/watch?v=h-Ffq1kCvas

12. LTE Deployments now in the 700 MHz band • One Tier 1 Operator reports that over 35% of the data traffic now goes over LTE in 700 MHz. • Over 75% of US population now has access to LTE service, overwhelmingly from the 700 MHz band.

13. Challenging interference issues near border Interference Interference Only the worst cases of interference are highlighted. Filter 2 Filter 1 Filter 2 Filter 1 Substantial interference issues throughout the band requires careful coordination within 110km of US Mexican border. Particularly challenging for Public Safety (PS) with noise limited long-range systems on high towers.

14. LTE’s Carrier Aggregation Enabling Much More Flexible Use Of Spectrum • LTE-Advanced Rel-10 (first office applications in 2013) introduces Carrier Aggregation (CA). • CA of different size and numbers of carriers, inter-band and intra-band Component Carriers. • Downlink-only Carriers to be supported (such as Lower 700 MHz D&E blocks.) • This provides new opportunities for unleashing stranded bands such as AWS-3, WCS, and Lower-700 MHz A block, where uplinks have been problematic. • Methods are emerging for improving UL Spectral Efficiency, more so than DL SE. • But… there are CA combination restrictions, complications of radios and stresses on signaling channels. Traditional band plan With Carrier Aggregation GuardBand A B C D A B C D GuardBand C A B B C D C Another Band Downlink Uplink Downlink Uplink A B

15. Key TakeAways • Demand is outstripping spectrum supply  Need for DD • Creative use of CarrierAggregation & Small cells require regulatory and community support • It’s not just spectrum any more. • Packing Broadcast TV unleashes spectrum for Mobile BB • Spectrum Considerations: • 700 MHz APT band plan will provide good economies of scale • Learning curve suggests that doubling the cumulative quantityproduced reduces costs by ~ 15%. 10X  50% FOR COMPONENT. • RF Front End Module costs less than about $3. • Border interference should be manageable at the low frequency end effectively. Without careful coordination, US Public Safetyinterference is more problematic.PS Terminals will cause interference to APT-700 terminals at high frequency end. • There is much more downlink traffic than uplink. • The benefits of mobile broadband are enormous, and fun! 9362 Enterprise Cell

18. Incentive Auctions • FCC released Incentive Auction NPRM from last Wednesday’s meeting:http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-12-118A1.pdf • 1st stage reverse auction: for full-power and Class A TV licensees and allows participants to • (a) relinquish a 6 MHz license, • (b) channel-share, or • (c) move from a UHF to a VHF channel. • Repacking broadcast licenses • 2nd stage forward auction of 5 MHz blocks without advance knowledge of which blocks. • Separate up and down blocks clearing X downlink and Y uplink spectrum. • Whitespace use in Channel 37, in the guard bands, and in two channels used by wireless microphones • Expected Order in 2013 with auction in 2014.

19. Incentive Auctions • FCC released Incentive Auction NPRM from last Wednesday’s meeting:http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-12-118A1.pdf • 1st stage reverse auction: for full-power and Class A TV licensees and allows participants to • (a) relinquish a 6 MHz license, • (b) channel-share, or • (c) move from a UHF to a VHF channel. • Repacking broadcast licenses • 2nd stage forward auction of 5 MHz blocks without advance knowledge of which blocks. • Separate up and down blocks clearing X downlink and Y uplink spectrum. • Whitespace use in Channel 37, in the guard bands, and in two channels used by wireless microphones • Expected Order in 2013 with auction in 2014.

20. Incentive Auctions • FCC released Incentive Auction NPRM from last Wednesday’s meeting:http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-12-118A1.pdf • 1st stage reverse auction: for full-power and Class A TV licensees and allows participants to • (a) relinquish a 6 MHz license, • (b) channel-share, or • (c) move from a UHF to a VHF channel. • Repacking broadcast licenses • 2nd stage forward auction of 5 MHz blocks without advance knowledge of which blocks. • Separate up and down blocks clearing X downlink and Y uplink spectrum. • Whitespace use in Channel 37, in the guard bands, and in two channels used by wireless microphones • Expected Order in 2013 with auction in 2014.