Peter Ecclesine - Presentation at Emerging Communications Conference & Awards (eComm 2011)
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Peter Ecclesine - Presentation at Emerging Communications Conference & Awards (eComm 2011)

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  • We can choose range / rate when we can ignore the installed baseSmall cells are KING
  • pi * range * range
  • The price of increased coverage is reduced capacity
  • Acknowledge Tevfik Yucek, Qualcomm-Atheros-72.78 dB means power is 1/18,967,059 of reference power
  • Acknowledge Brian Hart, Cisco
  • Acknowledge Brian Hart, Cisco
  • Acknowledge FCC 10-198 Promoting More Efficient Use of Spectrum through Dynamic Spectrum Use Technologieshttp://www.federalregister.gov/articles/2010/12/28/2010-32491/promoting-more-efficient-use-of-spectrum-through-dynamic-spectrum-use-technologies

Peter Ecclesine - Presentation at Emerging Communications Conference & Awards (eComm 2011) Presentation Transcript

  • 1. Wi-Fi Sub 1 GHz Range 3 times the range
  • 2. Wi-Fi Sub 1 GHz Range10 times the coverage
  • 3. Wi-Fi Sub 1 GHz RateUp to One tenth the speed 1/54, 1/40, 1/30, 1/20, . . . 1/10
  • 4. All the radios we carry will follow our authority and policy NFC/FM/TVWS/3G/4G/Bluetooth/Wi-Fi/60 GHz
  • 5. The angel is in the details Unlicensed Spectrum Dynamic Spectrum Access 802.11 Radios 802.11 Radio Timeline Comparisons Wi-Fi Alliance
  • 6. Marginal Flexibility of Spectrum per POP0.90.80.70.60.50.40.3 Exclusive Use*0.2 Unlicensed0.1 0 57 240 570 2.4 3 GHz 5.7 24 57 MHz MHz MHz GHz 10 cm GHz GHz GHz 5.2m 1.25 52 cm 12.5 5.2 1.25 5.2 m cm cm cm mm Highest Value Use of Spectrum, Citizens Guide to the Airwaves* http://wireless.fcc.gov/auctions/default.htm?job=auction_summary&id=73
  • 7. FCC TV White Spaces Spectral MaskAcknowledge Tevfik Yucek, Qualcomm-Atheros -72.78 dB means less than 1/18,967,059 of peak power
  • 8. White Space spectrum in the USA? FCC consolidated TVWS rules https://mentor.ieee.org/802.11/dcn/11/11-11-0067-01- 00af-fcc-tvws-orders-jan-11-consolidated-text.pdf FCC terminology https://mentor.ieee.org/802.11/dcn/11/11-11-0175-02- 00af-fcc-tvws-terminology.ppt Showmywhitespace.com 1800 Old Bayshore Highway, Burlingame, California http://spectrumbridge.com/whitespaces.aspx US Metro white space https://mentor.ieee.org/802.11/dcn/11/11-11-0499-02- 00af-us-metro-mhzpops.xls
  • 9. 5 GHz license-exempt spectrum detailsChina 2 W EIRP India Campus/Indoor 200 mW EIRP Campus/Indoor 200 mW EIRPJapan Indoor 200 mW EIRP Outdoor 1 W EIRP 5.725 5.875 USA/ Indoor DSRCCanada Outdoor 1 W EIRP 5.470 5.725 4 W EIRPEurope Indoor 200 mW EIRP Outdoor 1W EIRP 2 W EIRP/ DFS&TPC 5.100 5.200 5.300 5.400 5.500 5.600 5.700 5.800 5.900 DFS & TPC DFS & TPC required world wide  Showing Aeronautical, Maritime Radiolocation and DSRC
  • 10. VHT60 11ad 60 GHz Channelization Channel Lower Freq. Center Upper Freq. Nyquist Channel Number (GHz) Freq. (GHz) BW Spacing (GHz) (MHz) (MHz) 1 57.240 58.320 59.400 1760 2160 2 59.400 60.480 61.560 1760 2160 3 61.560 62.640 63.720 1760 2160 4 63.720 64.800 65.880 1760 2160Acknowledge Brian Hart, Cisco
  • 11. VHT<6 11ac Making 11n Go Faster Data Bits per Subcarrier 256QAM@r5/6 64QAM@r5/6 40MHz 80MHz 160MHz Bandwidth 11n AP 4 11ac AP 8#Spatial Streams Acknowledge Brian Hart, Cisco
  • 12. Important VHT<6 11ac Numbers  For battery-powered APs and clients, only the yellow row is mandatory  Gigabit rates for some product configurations (orange rows) PHY PHY BW #Spat MCS MAC thruput BW #Spat MCS MAC thruput rate rate(MHz) Strm (QAMr5/6) (Mbps)* (MHz) Strm (QAMr5/6) (Mbps)* (Mbps) (Mbps) 40 3 64 450 315 40 4 64 600 420 80 1 64 325 227 160 1 64 650 455 80 1 256 433 303 160 1 256 867 607 80 2 64 650 455 160 2 64 1300 910 80 2 256 867 607 160 2 256 1733 1213 80 3 64 975 683 160 3 64 1950 1365 80 3 256 1300 910 160 3 256 2600 1820 80 4 64 1300 910 160 4 64 2600 1820 80 4 256 1733 1213 160 4 256 3467 2427 80 8 256 3467 2427 160 8 256 6933 4853 *Assuming 70% efficiency Acknowledge Brian Hart, Cisco
  • 13. VHT 802.11ac / ad Use cases and Market Drivers 4.5 4.0 Wireless Docking Station 3.5 Uncompressed/ Lossless Video 3.0Rate (Gbps) 2.5 Ultra Fast Synch & Go 2.0 1.5 Lightly Compressed Display Super High Speed WLAN 1.0 Whole Home AV Distribution 0.5 0 In Room Whole ;-) Building Coverage Acknowledge Brian Hart, Cisco
  • 14. VHT<6 11ac Higher Rate at Range / Robustness MAC thruput@70% efficiency Watt/ hours 1750 1400 1050 2ndGen Home APs 700 350 0 8m 18m 58m
  • 15. 11af Spectrum is both TV white space and other bands  Goal – While geographic sharing of spectrum is well- established, we are only just now seeing the emergence of technologies that enable “dynamic” sharing – that is, the ability to identify slices of spectrum that are available at that location, whether for a few seconds, a few minutes, a few hours, or a few days.*  All protected spectrum users want quicker resolution of interference. Geolocation databases of spectrum users is quite helpful.  11af is standardizing operation with multiple geolocation databases. *Acknowledge FCC 10-198 Promoting More Efficient Use of Spectrum through Dynamic Spectrum Use Technologieshttp://www.federalregister.gov/articles/2010/12/28/2010-32491/promoting-more-efficient-use-of-spectrum-through-dynamic-spectrum-use-technologies
  • 16. Some 11af TV band defined elements Others define the Authorized database protocols that Access Points and Fixeddevices shall use, and each AP is certified to operate with a specific Authorized TV bands database. A Registered Location Secure Server accesses the Authorizeddatabases with protocols that others define, and may provide a persistent internetaddress to the databases. APs and 802.11 stations access a Registered Location Secure Server with radio protocols that IEEE 802.11 defines.
  • 17. Relations between 802.11ac and 11af Expect 11ac PHY to be „frozen‟ by Christmas 2011, and WFA to certify devices by Spring 2013 11af version of 11ac PHY top speed will be less than 10 Mbps per TV channel Expect TV frequencies to affect spatial streams more than any other WLAN PHY technology. Long wavelengths 5.2m-1.4m (VHF) and 63 cm-43 cm (UHF) mean MIMO is less effective than at shorter wavelengths for the same size devices TV channel bandwidths of 6 MHz, 7 MHz and 8 MHz have to be supported by world client radios Expect megabits and kilobits/sec at 3 times range of 802.11g (slower than 5 MHz / 80 MHz scaling)
  • 18. 11af Higher Range / Robustness MAC thruput@70% efficiency Watt/ hours 5X 4X Enterprise AP 3X 2ndGen Home APs 2X X 11n/20 0 8m 18m 1.8km
  • 19. 11ah Sub 1 GHz Started as Wi-Fi for Smart Grid meter reading Not a simple rebanding of 2.4 GHz equipment because of much longer range requirement (>1 km), and some battery powered Internet of Things aspirations. Some want 12,000 devices on one service, some want multi- year battery life. Marketing assessments and engineering assessments this year, first draft March 2012. Should keep the 802.11 PHY experts busy.
  • 20. 802.11 PHY timelines802.11n 802.11ac 802.11ad 802.11af 802.11ah SubHigh Very High Very High Operation in 1 GHzThroughput Throughput Throughput TV BandsDraft 1.0 Draft 1.0 Draft 1.0 Oct Draft 1.0 Feb Draft 1.0May 2006 June 2011 2010 2011 March 2012WFA freeze WFA freeze WFA wait for WFA wait for WFA wait forMarch 2007 Dec 2011 publication publication publication502 pages 242 pages 552 pages 139 pages ?Publish Sep Publish Dec Publish Dec Publish June Publish June2009 2013 2012 2013 20141000 500 Person 400 Person 30 Person 200 PersonPerson Years Years Years YearsYears6 years 5 years 4 years 3 years 4 years
  • 21. Wi-Fi Alliance Wi-Fi Alliance certifies interoperability between products, not regulatory compliance Soft-AP (laptop or smartphone) drives many new concepts (1 to 1, 1 to many) Wi-Fi Direct between radio devices (not ad hoc) 2010 Wi-Fi Display to large screen (1 to 1) 2011 HotSpot 2.0 with network operators for world-radio clients (like ATM machine networks) 2012 SmartGrid for IPv6 Home Area Networks – Zigbee, HomePlug interoperation 2013
  • 22. References http://www.ieee802.org/11/ https://mentor.ieee.org/802.11/documents http://www.wi-fi.org/connection/ Cognitive radio in ECC http://www.wonderlandwpa.com/dev/ecc_newsletter_june/june- 2011/index.html FCC TVWS ECFS Proceeding 02-380, 04-186 http://fjallfoss.fcc.gov/ecfs/ FCC consolidated TVWS rules https://mentor.ieee.org/802.11/dcn/11/11- 11-0067-01-00af-fcc-tvws-orders-jan-11-consolidated-text.pdf FCC terminology https://mentor.ieee.org/802.11/dcn/11/11-11-0175-02- 00af-fcc-tvws-terminology.ppt Showmywhitespace.com http://spectrumbridge.com/whitespaces.aspx US Metro white space https://mentor.ieee.org/802.11/dcn/11/11-11-0499- 02-00af-us-metro-mhzpops.xls
  • 23. 802.11 WG is starting to grow again and 802.16 WG is deciding what to do next! 600 Note: “number of voters” 802.11 is a “lagging” indicator 802.15 802.16No. of voters before meeting 500 802.18 802.19 400 802.20 802.21 802.22 300 200 100 0 Jan-02 Oct-02 Jul-03 Mar-04 Dec-04Sep-05Jun-06 Mar-07 Dec-07Sep-08Jun-09 Mar-10 Dec-10Sep-11 Jun-12 Acknowledge Andrew Myles, Cisco WG meeting date Voting members – May „11
  • 24. Q and A