Advanced Spectrum Sharing United Statesdynamicspectrumalliance.org/assets/DSA...Washington, DC [email protected] Pending Spectrum Bridge, Inc. Peter Stanforth, 110 Timberlachen

Advanced Spectrum Sharing in the United States

2© 2015 Dynamic Spectrum Alliance

Ira Keltz, Deputy ChiefOffice of Engineering and Technology

Dynamic Spectrum AllianceGlobal Summit

Manila, PhilippinesMay 8, 2015

Note: The views expressed in this presentation are those of the author and may not necessarily represent the views of the Federal Communications Commission

Advanced Spectrum Sharing in the United States

Dawn of a New Age inSpectrum Dynamic Access


TV white space and other spectrum dynamic access systems are beginning to take hold globally

Source: Dynamic Spectrum Alliance Report, “Worldwide Commercial Deployments, Pilots, and Trials (http://www.dynamicspectrumalliance.org/pilots.html)

Global TV White Space Deployments, Pilots, Trials

TV White Spaces


Applications Are Unlimited


• Wi‐Fi devices ‐ Home and business networks; hot‐spots

• Community, urban & rural broadband networks by WISPs

• Bluetooth headsets & keyboards• Automobile keyless entry• Wireless baby monitors • In‐home video distribution• Remote control toys• Toy walkie‐talkies• Utility meter readers & smart grid energy

control• Tank level meters• Traffic light controls• Crane controls• Lighting controls & dimmers• Wireless door bells

• Cordless phones• Garage door opener controls• Sensors for automatic doors • Industrial automation controls• RF ID systems• Retail anti‐theft systems • Security alarm systems • Wireless speakers• Satellite Radio‐to‐FM radio• Convergence w licensed devices • Medical camera pills• Medical panic alerts• Meat thermometers• Inventory control• Pool cover controllers• Diaper wetness sensor• And the list goes on . . .

Progress on White Space in the TV Bands (Unlicensed)

• Adopted final rules in 2012• Nine devices approved:

– Adaptrum, Koos Technical Services, Meld, Carlson, Redline and 6harmonix

– All fixed devices, designed for professional installation ‐location entered manually

– All are generic boxes with an input for a digital signal (voice, video, data).

• Databases approved: – Spectrum Bridge, iconectiv (formerly Telcordia),

Google, Key Bridge Global and KB/LS Telcom

• IEEE 802.11af standard approved ‐ Dec. 2013• Strong international interest

Carlson Adaptrum

SpectrumBridge

iconectiv

Wireless Cameras Cover Park in Wilmington NC

Meld


Database Administrator Approval Process

• File application• Workshops• Submit database• FCC Review• Public beta test• Final report• Public comment• Final approval• Maintenance: Q&A’s

and database updates

White Space Database Administrators

Administrator Name Contact Information Approval Status

Airity, Inc. (formerly WSdb LLC) Pending

Comsearch H. Mark Gibson, 19700 Janelia Farm Boulevard, Ashburn, VA 20147 [email protected] Pending

RadioSoft, Inc. (formerly Frequency Finder), a subsidiary of LStelcom

Peter Moncure, 8910 Dick’s Hill Parkway, Toccoa, GA 30557 [email protected] Approved

Google Inc.Alan.Norman, 1600 Amphitheatre Parkway, Mountain View, CA [email protected]

Approved

LStelcomDr. Georg Schöne, Im Gewerbegebiet 31‐33, D‐77839 Lichtenau, [email protected]

Approved

Key Bridge Global LLCJesse Caulfield, 1600 Tysons Blvd., Suite 1100, McLean, VA [email protected]

Approved

NeuStar, Inc. Brian Rosen, 1775 Pennsylvania Ave., NW, Washington, DC [email protected] Pending

Spectrum Bridge, Inc.

Peter Stanforth, 110 Timberlachen Circle, Suite 1012, Lake Mary, FL [email protected] Approved

iconectiv John P. Malyar, 1 Telcordia Dr., Piscataway, NJ 08854 [email protected] Approved

Microsoft Corporation Ian Ferrell, One Microsoft Way, Redmond, WA 98052, [email protected] Pending


Lessons Learned


Coordination among database providers is critical Required development of a complex data exchange protocol to ensure that the

information is updated frequently and consistently; Need for the device authentication protocols to register and authenticate devices

by the database provider – currently, at the time of certification devices are approved for communications with specific database providers

Ensure consistent method of calculating protected areas ‐ ‐ each database must provide the same answer

Need a process for authenticating user input and for ensuring data integrity

Need clear policy for handling license database errors Clarify handling of expired licenses w/ pending renewals Once issues discovered, need effective way to quickly communicate

remedies to all databases Out‐of‐band emissions can be a challenge

Proposed Rule Changes(Accommodate Incentive Auction)

• NPRM adopted Sept. 30, 2104• Proposed unlicensed operation in:

– Remaining white space– Duplex gap– Guard bands– Channel 37 – Shared non‐IX to medical telemetry and radio astronomy– Recovered spectrum until wireless operation commences

• Proposed additional technical flexibility for devices

= Bands proposed for unlicensed


Spectrum Sharing:Small Cells @ 3.5 GHz


Citizens Broadband Radio Service

Report & Order Adopted April 17, 2015

Dynamic spectrum access for small cells

Dynamic spectrum access for small cells

150 MHzof

contiguousspectrum

150 MHzof

contiguousspectrum


3550 3700 3650

Navy Ship Radars Non-Federal FSS ES

FSSFederalFederal Ground-Based Radar

3600


Three Tier Access

Incumbent Access: Includes authorized federal and grandfathered Fixed Satellite Service (FSS) users currently operating in the 3.5 GHz Band.

Priority Access License (PAL): Authorize certain users to operate with some interference protection in portions of the 3.5 GHz Band at specific locations

General Authorized Access (GAA): Users authorized to use the 3.5 GHz Band opportunistically. GAA users required to accept interference from Incumbent and Priority Access tier users.

Incumbent Access

Priority Access

General Authorized Access


License Areas


U.S. Census Tracts

Washington DC

PALs licensed by census tract• Over 74,000 census tracts in U.S.• May aggregate census tracts

Protected Access vs General Authorized Access


Shared Between PALs and GAA

• Protected Access Licenses• Up to seven 10 megahertz licenses• Can aggregate up to four PALs in any census tract

• Assigned through auction• Three year term

• General Authorized Access• Opportunistic use

Band‐wide Operability Requirement

• All Citizens Broadband Service Devices (CBSDs) must be capable of two‐way transmission on any frequency from 3550‐3700 MHz

General Authorized Access Only

• Increased technical flexibility• Additional power in rural areas

• Existing equipment exempt from band‐wide operability requirement

3550 3700 3650

Navy Ship Radars Non-Federal FSS ES

FSSFederalFederal Ground-Based Radar

3600


Incumbent Protection


Protection of Federal Systems at3550‐3650 MHz

• Phase 1 ‐ Exclusion zone near coastlines

• Phase 2 ‐ Environmental sensing capability• Exclusion zone protection zone

Proposed exclusion zoneAdopted exclusion / protection zone

Protection of Non‐Federal Systems at3650‐3700 MHz

• Incumbent terrestrial broadband licensees grandfathered for five+ years

• Grandfathered FSS (3600‐3700 MHz) register with FCC yearly• Protection based on operating parameters• Further Notice explores additional

protection criteria

Three Federal radar sites protected via 80 km exclusion zone.

Spectrum Access System (SAS)

A next generation sharing system building on white spaces

• Determine available frequencies at a location and assign them to CBSDs

• Determine maximum permissible power level for CBSDs at a location

• Register and authenticate CBSDs• Enforce Exclusion and Protection Zones• Protect PALs from IX from other users

• Facilitate coordination between GAAs • Ensure secure and reliable transmission of

information between the SAS, ESC, and CBSDs• Protect Grandfathered Wireless Broadband

Licensees• Facilitate coordination and information

exchange between SASs

SAS Functions


More Work To Do

Further Notice of Proposed Rulemaking• Defining “Use” of PAL frequencies• Implementing secondary markets in Priority Access Licenses• Optimizing Protection for FSS

• In‐band protection of FSS in 3600‐3700 MHz• Out‐of‐band protection of C band FSS earth stations

• SAS Provider selection and authorization• Will use process similar to TV White Spaces

• Multi‐stakeholder process• FCC appreciates industry establishing a multi‐stakeholder process• Regulations set framework• Industry collaboration will be key to successful implementation


Spectrum Sharing:Unlicensed at 5 GHz


Expanding Spectrum forUnlicensed at 5 GHz

• NPRM proposed to expand access to spectrum for unlicensed at 5 GHz• First R&O 3/31/14 ‐ Removed indoor‐only restriction & increased permitted power for U‐NII 1• Continuing to work on sharing in proposed U‐NII‐2B and U‐NII‐4

Previous Rules


Implications for Wi‐Fi

Current 802.11ac and Potential New Usable Channels


Ongoing Work

U‐NII‐2B (120 Megahertz)5350‐5470 MHz

• Sharing with federal plane/ship/terrestrial radars & earth exploration satellite

• US proposing to continue international work for WRC‐19

• Moving forward domestically• Work group established:

– FCC/NTIA/DoD/NASA– Considering IX protection studies &

developing ways to share– Evaluating sharing with

indoor low power/then outdoor high power

U‐NII – 4 (75 Megahertz) 5850‐5925 MHz

• Sharing with Dedicated Short Range Communications

– Vehicle to Vehicle– Vehicle to Infrastructure

• IEEE Tiger Team has been working on industry proposals

• FCC/NTIA/DoT collaborating• Considerations:

– Protect safety of life– Roads are everywhere– Wi‐Fi & DSRC are similar

• 21© 2015 Dynamic Spectrum Alliance

Model City Program


Model City Program

• NTIA/FCC Model City Program for Demonstrating and Evaluating Advanced Wireless Spectrum Sharing Technologies

• Outgrowth of Report from President’s Council of Advisors on Science and Technology (PCAST)

• April 15‐16 workshop explored concept, scope, governance, process, technical considerations and funding alternatives.

Some trade-offs to Consider

Urban Area:A “Real Test”but high risk

Remote Area:More limited demonstrationbut low risk


Other “Sharing” Matters

• Proceeding on Globalstar”sproposed Terrestrial Low Power Service (TLPS)

• Development of LTE‐U initially planned for upper 5 GHz unlicensed bandhttp://www.3gpp.org/news‐events/3gpp‐news/1660‐laa_ieee


The Future?

Autonomous devices that rely on sensing to access spectrum


Potential solutions• Common sensor networks• Collaboration between devices• Multiple antennas / Smart antennas• New adaptive waveforms• Adaptive propagation models• Geographic / Topographic models

Issues• What signal level to sense for• How to measure• Hidden node problem• Spectrum policy• Enforcement

I DO WHAT I WANT(As long as it doesn’t cause

harmful interference)

How Do We Get There:Research and Development

• NTIA: Center for Advanced Communications / National Advanced Spectrum and Communications Test Network

• National Information Technology R&D (NITRD)/ Wireless Spectrum R&D (WSRD)– coordinate spectrum‐related research and development activities across the Federal government.– Has held seven workshops on various aspects of spectrum sharing

• National Science Foundation– Enhanced Access to Radio Spectrum (EARS)

• Defense Applied Research and Development Program: Radars• The Department of Defense (DOD)

– Established a Section 845 Other Transaction (OTA) agreement to develop and mature technologies and support policy development to enable advanced approaches to spectrum use

• Academic Work• Dynamic Spectrum Access Networks (DySpan)• International Symposium on Advanced Radio Technologies (ISART)• And YOU!


Documents

Advanced Spectrum Sharing United Statesdynamicspectrumalliance.org/assets/DSA...Washington, DC [email protected] Pending Spectrum Bridge, Inc. Peter Stanforth, 110 Timberlachen