1 / 15

sg-whitespace-09-0007-03-0000

sg-whitespace-09-0007-03-0000. 802 Whitespace Use Cases Whitespace SG. 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

annsmith
Download Presentation

sg-whitespace-09-0007-03-0000

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. sg-whitespace-09-0007-03-0000

  2. 802 Whitespace Use CasesWhitespace SG

  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) • Antenna Height for fixed/outdoor device: ≤3 m up to 30m (Table 3 in R&O) • Antenna Height for typical DTV receiver: 10m (DTV interference distance)

  5. 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

  6. 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

  7. 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

  8. 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 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

  9. 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

  10. 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 • Areas of relatively strong TV broadcast signals with less available Spectrum • 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

  11. ≤ 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

  12. TVWS International Service Rules • Any need to Harmonization Regulatory Domains/Rules for TVWS? • Will this impact use cases? • 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)

  13. 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

  14. 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

  15. Use Case Conclusions THE TVWS USE CASES WILL.. • ..be part of a larger Wireless eco-system • ..be driven by both Market demand & Policy requirement • ..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

More Related