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Broadband Fixed Wireless

Broadband Fixed Wireless. 2Ghz to 40Ghz. Spectrum Availability. + Ultra High-Speed LAN/WAN. + TDM Leased Lines. + High Speed Internet and Multimedia. >100 Mbps. 10 to 100 Mbps. Voice, Data, Fax, ISDN. 1 to 50 Mbps. Bandwidth (MHz). 256 Kbps. 100. 300. 400. 1000. 1350. 1400.

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Broadband Fixed Wireless

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  1. BroadbandFixed Wireless

  2. 2Ghz to 40Ghz Spectrum Availability + UltraHigh-SpeedLAN/WAN + TDMLeased Lines + High Speed Internet and Multimedia >100 Mbps 10 to 100Mbps Voice, Data, Fax, ISDN 1 to 50Mbps Bandwidth (MHz) 256 Kbps 100 300 400 1000 1350 1400 2000 5000 20 30 200 200 No LOS LOS 1 GHz 2.5 3.5 5.8 10 24 26 28 38 40 60 MMDS UNII LMDS Multichannel Multipoint Distribution Service Unlicensed National Information Infrastructure Local Multipoint Distribution Service

  3. Spectrum Availability Worldwide + UltraHigh-SpeedLAN/WAN + TDMLeased Lines + High Speed Internet and Multimedia >100 Mbps 10 to 100Mbps Voice, Data, Fax, ISDN 1 to 50Mbps 256 Kbps Bandwidth (MHz) 100 300 400 1000 1350 1400 2000 5000 20 30 200 200 No LOS LOS 1 GHz 2.5 3.5 5.8 10 24 26 28 38 40 60

  4. MMDS • MMDS - Multichannel Multipoint Distribution Service • FCC regulated wireless cable system • Delivery of multiple video signals via point-to-multipoint microwave transmissions • Comprised of 33 microwave frequencies in 2.5 GHz band

  5. UNII • UNII – Unlicensed National Information Infrastructure • Located in 5.2 – 5.8 GHz bands

  6. LMDS • LMDS – Local Multipoint Distribution Service • Located in 28 GHz and 31 GHz bands • Broadband radio service designed to provide two way transmission of voice, high speed data and video • Low powered transmitters broadcast voice, data and video signals in metropolitan areas

  7. Spectrum: Horses for Courses • Less than 6 GHz • Long range (up to 30 miles), Non LOS, not affected by weather • Low-cost equipment - residential and SOHO CPE • Spectrum suitable for mass market deployments • Greater 6 GHz • LOS, short range (1-3 miles), affected by weather, more spectrum (1Ghz) • Spectrum used specifically for urban deployments to Large business or Multi-tenant units

  8. 2.5 GHz 6 GHz 23 GHz 28 GHz Reach Distance From Hub Point-to-Multipoint Point-to-Point Links 24 GHz 28 GHz 2.5 GHz 38 GHz 50.0 20.0 7.5 5.0 3.57 5.34 6.92 40 Reach Distance**, Km Reach Distance*, Km *Assume Rain Zone K, Single Channel per Transmitter, same power, same dB gain antennaes for all frequencies. **Assume Rain Zone K, 6cm antennae for 99.995% average availability, vertical polarization.

  9. P2P vs P2MP P2P dedicated bandwidth P2MP Sector P2MP shared bandwidth

  10. # of Subscribers Cost per Subscriber by Network This is the point at which PMP becomes more economically viable than a PTP network, generally ~8 links. Cost Per Subscriber PTP PMP CPE Cost

  11. Industry Suppliers Unified Broadband Wireless Reference Architecture FCC Compliant R.F. Small Office Wireless Service Modules SAT SAT 38 GHZ Radio Standard I.F. PBX 38 GHZ Radio 38 GHZ Radio IP ATM WDM FR LMDS Radio LMDS Radio Branch Office UNII Radio UNII Radio MMDS Radio MMDS Radio SOHO Telecommuter 10 GHZ Radio 10 GHZ Radio Integrated Wireless MAC Other Other Any RF band Consumer End-to-End Services, Network Management,Provisioning AND Billing Backhaul Network CPE Networks

  12. Key Features • IP Packet Based Solution with DOCSIS 1.1 support • Up to 44.4 Mbps full-duplex throughput • Up to 25 Miles in connection distance • Fiber quality link • > 10-11 BER for Data, > 10-8 BER for Voice • Supports both MMDS (2.5 GHz) and UNNI (5.7 GHz) • Encryption support: 56 bit DES with RSA key management

  13. “ ” The Problem Line-of-Sight: The technology, while promising, continues to have nagging "line-of-sight" issues. Wireless signals in these systems must have a clear path to travel as they bounce from rooftop to rooftop. Trees, buildings and even inclement weather, such as snow and pelting rain, can cause static, dropped calls and hazy connections. Leslie Cauley staff reporter in The Wall Street Journal's New York bureau September 20, 1999

  14. … … Paths Base Station Subscriber The Solution • VOFDM (Vector Orthogonal Frequency Division Multiplexing) technology • employs both frequency and spatial diversity • creates a robust processing technique for multipath fading and narrow band interference • VOFDM enables greater coverage • substantially reduces LOS limitations

  15. What is VOFDM? Transmit Spectrum • Each VOFDM burst carries data and training • Allows for variation inthe channel • Reduces effect of frequency offset • VOFDM, interleaving and coding • Create a robust processing technique for multipath fading and narrow band interference Receive Spectrum Channel Training Tone Data Tone

  16. Questions ???

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