Transcript of TV White Space and Applications Jeff Schmidt j.schmidt@spectrumbridge.com October 16, 2012 Oakland,...
- Slide 1
- TV White Space and Applications Jeff Schmidt
j.schmidt@spectrumbridge.com October 16, 2012 Oakland, California
CENIC Workshop Organized by the New America Foundation
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- [ 2 ] DySPAN 2012 Spectrum Bridge is a Spectrum Management
company that develops technologies for enabling access to spectrum.
SpecEx The secondary market place for spectrum, UDIA - A spectrum
sharing solution for 5GHz, The worlds first certified TVWS solution
Actively involved in TVWS efforts around the world. Overview
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- [ 3 ] DySPAN 2012 Projected Spectrum Deficit in the US 1
President's Council of Advisors on Science and Technology, May 2012
Enhanced Mobile Devices are Leading to a US Spectrum Deficit 1 Data
more than doubled 4 years in a row Smart phones generate 24X data
of basic-feature cell phones Tablets create 5X more traffic than
smart phones Huge WW Mobile Device Growth Opportunity (2020) 1
$4.5T Global Value M2M Wave next 50B devices Zetta-bytes of Data 10
21
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- [ 4 ] DySPAN 2012 Unlicensed Spectrum is the fuel for
innovation Ref: Report of the Unlicensed Devices and Experimental
Licenses Working Group, Federal Communications Commission Spectrum
Policy Task Force November 15, 2002 But its been a while BandYear
Authorized Frequencies (MHz) Total Allocation (MHz) ISM/Spread
Spectrum1985902-92826 ISM/Spread Spectrum19852400-2483.583.5
ISM/Spread Spectrum19855725-5825100 Unlicensed PCS19931910-1930,
2390-2400 10 remain U-NII19985150-5350, 5725-5825 200 100
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- [ 5 ] DySPAN 2012 Why TVWS? Real NLOS performance Significantly
increased range, 3x-5x Better coverage 10x reduction in Wi-Fi APs
Manage co-existence via database More spectrum! 2.4 GHz coverage
600 MHz coverage
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- [ 6 ] DySPAN 2012 Evolution 2004 20122008 201120102009 First
online TV white space database First experimental white space
networks First TVWS solution subject to FCC trial First FCC
certified database FCC grants rights to database providers FCC
issues Second Memorandum to Final TVWS rules (10-174) FCC publishes
initial Notice on TV White Space (04- 186) FCC issues Second Report
& Order for TVWS bands (08- 260) FCC issues Third Memorandum to
Final TVWS rules (12-36) First FCC certified TVBD Second, Third FCC
certified TVBD Do not expect a sensing only radio to be
certified
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- [ 7 ] DySPAN 2012 TVWS: How it Works Relies on Geo-location
database and spectrum allocation policies, With established
policies and a feedback mechanisms, spectrum allocation can be
tightly controlled, This concept is flexible and extensible to
virtually any spectrum band - rules and policies can be modified
and implemented in real-time.
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- [ 8 ] DySPAN 2012 Notable Trials and Deployments to Date
LocationApplicationEnvironmentPartner Claudville, VAFirst WS
Network! Rural Broadband Hills/Foliage Plumas, CASmart
GridMountains/Desert Logan, OHTelemedicineSuburban Medical Indoor
& Outdoor Wilmington, NCSmart CityUrban Coastal City Helsinki,
FIInvestigation: Interference to Broadcasting Large City Cambridge,
UKCoexistence & Location Services Various
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- [ 9 ] DySPAN 2012 Unlicensed White Space Supports a Wide Range
of Applications To Date: M2M telemedicine, sensors, controls Smart
Grid / Telemetry - smart meters and power grid monitoring Video
Surveillance public safety and traffic monitoring Broadband - last
mile internet access in rural areas Enhanced Location Services -
value added services and advertising at venues Planned: Femtocell -
backhaul and offload for small cell deployments Content
distribution - multicast video and data in big box stores and
convention centers Avoided: High QoS (unlicensed/shared) TDMA (need
clean channel) Narrowband (due to PSD limits) Mobility (requires
higher TX power limits for personal portable devices)
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- [ 10 ] DySPAN 2012 White Space Data Base White Space Data Base
OTA Content Delivery Registration And Channel Assignment Content
Other Innovative Applications Already seeing innovation beyond the
original concepts. Example: a low power DTV content distribution
solution using COTS TV sets for localized content delivery. Think
convention centers, sporting events, shopping malls
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- [ 11 ] DySPAN 2012 White Space or Gray Space ? A product of
mixing MegaWatt and milliWatt transmitters in the same ecosystem.
Need for co-existence is exacerbated by the nature of excellent VHF
and UHF propagation. A data base provides the opportunity to
mitigate the interference effects of TV services and other
TVBDs.
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- [ 12 ] DySPAN 2012 How Gray? Caution ! Diminishing returns with
higher antenna sites
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- [ 13 ] DySPAN 2012 A Spectrum Bridge Solution
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- [ 14 ] DySPAN 2012 Non-Exclusive Use Current TVWS rules define
unlicensed = non-exclusive, i.e. shared use, WiFi in the ISM band
is a working model, except in cases overcome by the Tragedy of the
Commons, As a result, there is no guarantee of performance, A
concern for Service Providers and business critical applications.
However, the existence of a database enables the opportunity to
manage co-existence.
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- [ 15 ] DySPAN 2012 Facilitating Co-Existence and Sharing
Geo-location Database Serves as Air Traffic Controllers Network
Operators are not picky about how this is accomplished Automatic
notifications when: Potential interference or channel conflict
occurs or might occur Future use of spectrum is at risk Feedback of
channel selection and sensing data facilitates best results Results
in active and passive resolution of interference Stand-offs Active
view of existing usage
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- [ 16 ] DySPAN 2012 How Much is Available? Fixed Device (4W)
Channel Availability California Channel Availability = 13.2 MHz Low
Power Device Channel Availability California Channel Availability =
30.5 MHz
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- [ 17 ] DySPAN 2012 TV Band Incentive Auctions Middle Class Tax
Relief and Job Creation Act of 2012 provides for TV incentive
auction Television white spaces will continue to be available for
unlicensed use in the repacked television band., (Ref: FCC NPRM In
the Matter of Expanding the Economic and Innovation Opportunities
of Spectrum Through Incentive Auctions) Incentive auctions would
share auction proceeds with the current occupant to motivate
voluntary relocation of incumbents. Broadcaster participation in
incentive auction is voluntary. In exchange for a share of auction
proceeds a broadcaster could: Contribute one or more 6 MHz channels
Choose to move from UHF to VHF Share spectrum with another
broadcaster.multiplex Or choose not to participate! As a
consequence, more TVWS spectrum could become available in urban
areas
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- [ 18 ] DySPAN 2012 Companies (publicly) Active in White Space
Certified Database Providers Database Candidates Certified TVWS
Radios Radios in Certification Radio Companies Announced
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- [ 19 ] DySPAN 2012 Thank You www.spectrumbridge.com
Conclusion