1. Project IEEE 802 Executive Committee Study Group on TV White Spaces – ADHOC USE CASE SUB-GROUP TitleECSG ADHOC USE CASE SLIDE DECK Date Submitted 2009-01-20 Source(s)Contributor: Nanci Vogtli, Affiliation Concrete Logic Voice: (408) 354-8070, e-mail: nancivogtli@concrete-logic.com Contributor: Richard Paine, Affiliation Self Voice: 206-854-8199, e-mail: richard.h.paine@gmail.com Contributor: Dan Lubar, Affiliation RelayServices Voice: (877) 569-5069, e-mail: dlubar@relayservices.com Contributor: Scott Blue, Affiliation: Sensable Radio, email: blue@sensableradio.com Contributor: Gerald Chouinard, Affiliation CRC, email: gerald.chouinard@crc.ca Contributor: Jack Unger, Affiliation WISPA, email: junger@ask-wi.com AbstractIEEE 802 ECSG on White Space ADHOC USE CASE slide deck to capture TVWS USE CASE Sceneraios PurposeTo provide input to the ECSG and others on possible use cases that will help clarify how the TVWS spectrum might be used and how these uses might possibly be addressed by IEEE 802 work. ReleaseThe contributor grants a free, irrevocable license to the IEEE to incorporate material contained in this contribution, and any modifications thereof, in the creation of an IEEE Standards publication; to copyright in the IEEE ’ s name any IEEE Standards publication even though it may include portions of this contribution; and at the IEEE ’ s sole discretion to permit others to reproduce in whole or in part the resulting IEEE Standards publication. The contributor also acknowledges and accepts that this contribution may be made public by IEEE 802. Patent Policy and Procedures The contributor is familiar with the IEEE-SA Patent Policy and Procedures: and.http://standards.ieee.org/guides/bylaws/sect6-7.html#6http://standards.ieee.org/guides/opman/sect6.html#6.3 Further information is located at and.http://standards.ieee.org/board/pat/pat-material.htmlhttp://standards.ieee.org/board/pat sg-whitespace-09-0007-05-0000

2. 802 Whitespace Use Cases Goal: to help the 802 EC to determine next steps for 802 and its WG's in the TVWS by presenting known use cases

3. Whitespace Use Case Review Group decision to discuss use cases based on the regulatory constraints ≤ 4W fixed devices Use Case ≤ 4W fixed device to ≤ 100mW portable devices Use Case ≤ 100mW portable devices Use Case ≤ 50mW (Sense Only) portable devices Use Case ≤ 40mW portable devices Use Case International Use Case Future looking NOI Use case Shellhammer Input Broadband wireless internet access? Yes, including VOIP over broadband, but may use the frequencies for other applications like sensors or in-home devices that do not require broadband wireless internet access. Ranga Reddy Input Star/tree/mesh? Maybe? Have we covered sufficiently the requirements? Categorize by power Terms: Fixed, Personal/portable, Master, client Identify all devices that might be involved. Contrast what is different between licensed bands and new frequency Note: devices do not need to be operating at maximum power but rather ‘up to’ => “≤ ”

4. Whitespace Use Case Terms Terms from the FCC Report and Order Fixed/Outdoor Device (ex: towers, water towers, homes, farms, farm silos, etc.) Personal/Portable Device (ex: portables, laptops, smartphones, desktops, etc.) TV Protected Contour (41 dBμV/m on channel) Sensing antenna 10m height constrains the deployment of fixed devices Antenna Height for fixed/outdoor device: ≤ 3 m up to 30m (Table 3 in R&O) Antenna Height (sense or xmit?) for typical DTV receiver: 10m (DTV interference distance)

5. US FCC Antenna Height and Channel Use No channels can be used inside the TV protected contour, which is located (41 dBμV/m) beyond the keep-out distance specified in Table 3 of the R&O. R&O Table 3

6. Co-Channel (N) Adjacent Channels (N+/-1) Alternate Channels ( N+/2 and beyond) ≤ 4W FixedX ≤ 4W Fixed to ≤ 100mW Portable X ≤ 100mW PersonalX ≤ 50mW Sense Only Portable X ≤ 40mW PortableXX US FCC Regulatory Use Case Matrix All channels are available outside the TV protected contour (41 dBμV/m) beyond the keep-out distance specified in Table 3 of the R&O

7. Architectures The Report and Order does not limit architectures - star/tree/mesh are possible Coupling between architectures and market place (what are the use cases the market will demand) 802.22 has a proposed star architecture for the 4W Whitespace use case

8. Outdoor use outside the TV protected contour (41dBμV/m) and beyond the keep-out distance of all TV channels used in the area and their adjacent channels Towns, villages Rural areas, Farms Suburbs 4W Fixed Whitespace Use Case Grain Elevator Enterprise Slaughterhouse Enterprise Waterpark Enterprise Hunting Lodge Fishing Lodge Agriculture Enterprise Military Equipment Public Safety Equipment All Business Enterprises Light Residential/Suburban Farming & Agricultural Ranching Mountainous Fixed Registered Master Database Access Cell Towers Installable Private Comm. Systems Emergency Services Water Towers 20-30km Coverage Suburban Consolidated Access (MDU/MTU) Military Operations Public Safety Fixed Devices star/tree/mesh 1/20/20098

9. 4W to 4W fed by 100mW Use Case Onboard Roaming computing devices Internet Access VOIP Mobile Push to Talk Internet Access VOIP Movable Systems Internet Access Onboard Tractors VOIP Broadcast Radio 4W Fixed Master Database Access Cell Towers Installable Private Comm. Systems Emergency Services Water Towers 20-30km Coverage Suburban Consolidated Access (MDU/MTU) Military Operations Public Safety Private Radio Station Indoor or outdoor use outside of both the protected contour (41dBμV/m) and also the keep-out distance of all channels or adjacent channels in use in the area of operation Towns, villages Rural areas, Farms Suburbs 100mW Personal/Portable Devices 100mW Personal/ Portable Devices 100mW Personal/Portable Devices star/tree/mesh Access point (Portable TVBD or Wi-Fi) ≤ 4W Fixed CPE 1/20/20099

10. Indoor or outdoor use outside of both the protected contour (41dBμV/m) and also the keep-out distance of all channels or adjacent channels in use in the area of operation Towns, villages Rural areas, Farms Suburbs Urban/Metropolitan? Download bandwidth > Upload bandwidth 4W to portable 100mW Use Case Onboard Roaming computing devices Internet Access VOIP Mobile Push to Talk Internet Access VOIP Movable Systems Internet Access Onboard Tractors VOIP Broadcast Radio 4W Fixed Master Database Access Cell Towers Installable Private Comm. Systems Emergency Services Water Towers 20-30km Coverage Suburban Consolidated Access (MDU/MTU) Military Operations Public Safety Private Radio Station 100mW Personal/Portable Devices 100mW Personal/ Portable Devices 100mW Personal/Portable Devices star/tree/mesh Personal/Portable Devices are directly connected at 100mW near the Fixed Master 1/20/200910

11. 100mW Whitespace Use Case Indoor or outdoor use outside of both the protected contour (41dBμV/m) and also the keep-out distance of all channels or adjacent channels in use in the area of operation Suburban Neighborhoods Farm Wireless device access in a residence or farm or neighborhood Areas of weak TV broadcast signals Access Points – may or may not be for broadband Internet access Unlicensed Voice Applications – ex: Femtocell-like Point-to-Point Wireless Physical Area LAN 100m Residential Neighborhood or farm Registered Master Personal/Portable Devices star/tree/mesh? Personal/Portable Devices

12. 50mW (Sensing Only) Whitespace Use Case Indoor or outdoor use outside of both the protected contour (41dBμV/m) and also the keep-out distance of all channels or adjacent channels in use in the area of operation Access Points Unlicensed Voice Applications – ex: Femtocell-like Point-to-Point Wireless (ie Peer to peer/DLS) Portability Body Area Networks (BAN) – may not be broadband Internet access Area Indoor Networks PAN 10m Registered Master Personal/Portable Devices Personal/Portable Devices

13. ≤ 40mW Whitespace Use Case In-building outside the protected contour (41dBμV/m) and beyond the keep- out distance of all channels being used in the area Body Area Networks (BAN) – may not be broadband Internet access Protection Beacons and Microphones In-home backhaul Network Sensors/Control Devices Smart Utility Networks PANs Personal/Portable Devices

14. TVWS International Service Impacts Could Service Rules from Different Regulatory domains affect use-cases? Any need to Harmonize Regulatory Domains/Rules for TVWS? Are Cross-Border/National Boundaries an issue to use-cases? Regulatory domains to harmonize?.. US rules (Part 15, Part 74, and Part 90) Canada rules: Licensing of fixed point-to-multipoint TVWS with base station at up to 500 W EIRP at 30 m antenna HAAT (reduced power for higher HAAT) for rural broadband access EU rules Australia rules UK (OFCOM) Asia rules Netherlands Antilles – Initial allocation of "clean spectrum" Transmission output of portable devices must stay within RF Safety Limits (which means allowance of power levels higher than 100mW) Transmission output of fixed devices must correspond with heights required under the RF Safety Limits (which means allowance of power levels higher than 4W EIRP) Aspiring operators most roll out nationwide networks (meaning the eventual use of dynamic portable MAN´s and RAN´s) ITU has recommendations for worldwide TV whitespace technologies and approaches

15. NOI for higher power Use Case Will represent a “high power use case” versus current 4W TVWS R&O & Errata Higher base station power than 4W CPE power is unlikely to be much higher than 4W because of RF safety concern NOI work status is unknown and may not be actively “in progress” Maybe geared toward very Rural low density deployments covering large areas Will provide larger coverage areas at low cost May require both database and sensing together May require adjustments/amendments to R&O’s “fixed wireless” rules 40 km point-to-point (phased array?) application possible

16. Discussion Inputs Use case: broadband wireless Internet? Not necessarily in all cases Whether to contribute star, tree, or mesh as part of a use case? Within a use case? Health issues? Security? Keepaway zones/incumbent protection Use of the 4W by cell towers/organizations/safety/emergency responders/etc Economics of using competing/complementing wireless technologies Data base Sensing Cognitive radio applications/Interactive radio station (IP-based transport) Topologies depend on the use cases Scott Blue’s Use Cases 4W fixed to 4W fixed (database access can be bootstrap) 4W fixed master 100mW portable client 100mW master to 100mW client (40mW for both in the 1 st adjacent channel) 50mW sensing only client to client

17. Use Case Conclusions THE TVWS USE CASES WILL....be part of a larger Wireless eco-system...be driven by Market demands, Policy requirements, & Service Rules..may be hard to predict the most common use cases before we “get there”..will facilitate, and be facilitated by, innovation & policy goals..focus on standardization may need to be in sub-channelization mechanism for very low power (<40mW) devices