TVWS Use Cases Review

1. sg-whitespace-09-0007-05-0000

2. 802 Whitespace Use CasesGoal: 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 R&O Table 3 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.

6. 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. 4W Fixed Whitespace Use Case • 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 star/tree/mesh Fixed Devices • Grain Elevator Enterprise • Slaughterhouse Enterprise • Waterpark Enterprise • Hunting Lodge • Fishing Lodge • Agriculture Enterprise • Military Equipment • Public Safety Equipment • All Business Enterprises Geo-location Database of Incumbent Stations • 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 • Light Residential/Suburban • Farming & Agricultural Fixed Devices • Ranching • Mountainous

9. 4W to 4W fed by 100mW 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 • Towns, villages • Rural areas, Farms • Suburbs star/tree/mesh 100mW Personal/Portable Devices Geo-location Database of Incumbent Stations • Onboard • Roaming computing devices • Internet Access • VOIP ≤4W Fixed CPE Access point (Portable TVBD or Wi-Fi) • 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 • Mobile • Push to Talk • Internet Access • VOIP • Movable Systems • Internet Access • Onboard Tractors • VOIP • Broadcast Radio

10. 4W to portable 100mW 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 • Towns, villages • Rural areas, Farms • Suburbs • Urban/Metropolitan? • Download bandwidth > Upload bandwidth star/tree/mesh 100mW Personal/Portable Devices • Onboard • Roaming computing devices • Internet Access • VOIP Geo-location Database of Incumbent Stations • 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 • Mobile • Push to Talk • Internet Access • VOIP 100mW Personal/ Portable Devices • Movable Systems • Internet Access • Onboard Tractors • VOIP • Broadcast Radio Personal/Portable Devices are directly connected at 100mW near the Fixed Master

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 star/tree/mesh? Personal/Portable Devices Personal/Portable Devices Geo-location /Regulatory Database of Incumbent Stations Personal/Portable Devices Registered Master

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 Personal/Portable Devices Personal/Portable Devices Personal/Portable Devices Registered Master

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 Personal/Portable Devices 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 1st 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