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Point to Point & Point to Multipoint Broadband Application Enablers

Point to Point & Point to Multipoint Broadband Application Enablers. February 20, 2001 Mike Fink SVP – Architecture & Advanced Technology. Network Deployment Tradeoffs. Spectrum Capacity Real Estate: Indoor, Rooftop, IFL Range Ease of Use Cost. WinStar 38 GHz Spectrum Holdings.

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Point to Point & Point to Multipoint Broadband Application Enablers

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  1. Point to Point & Point to Multipoint Broadband ApplicationEnablers February 20, 2001 Mike Fink SVP – Architecture & Advanced Technology

  2. Network Deployment Tradeoffs • Spectrum • Capacity • Real Estate: Indoor, Rooftop, IFL • Range • Ease of Use • Cost

  3. WinStar 38 GHz Spectrum Holdings

  4. 28 GHz Spectrum • New York • San Francisco • San Jose • Salt Lake City • New Orleans • Orlando • Greensboro • Norfolk

  5. PTP Spectrum Usage 700MHz Up Link Down Link 50 MHz FCC Channel 50 MHz 8xT1 20 20 DS3 40 40 Today Narrowband DS3 12.5 12.5 OC3 Ver 1 50 50 28 28 OC3 Ver 2 2x50 MHz Emerging 2x50 MHz OC12 Ver 1

  6. 20 40 DS3 1 45 MB Narrowband DS3 1 180MB 12.5 50 OC3 Ver 1 1 155 MB OC3 Ver 2 1 155 MB 28 PTP and PMP Usage, Spectrum, and Antennas Bandwidth Size Technology # Antennas Capacity/FCC 8xT1 1 25MB PTP 10 10 10 10 10 2 5x40 Mbps 200 MB PMP 12.5 12.5 4 180 MB 4x45 Mbps (DS-3’s) 12.5 12.5

  7. Siemens PMP Frequency Usage 700 MHz T-R Spacing 50 MHz Upstream Channel 50 MHz Downstream Channel Siemens F1 F2 F3 F4 F5 F1 F2 F3 F4 F5 • 5 x 1-10 MHz Sub-Channels • FDMA or TDMA • Payload to 40 Mb/Sub-Channel • 5 x 1-10 MHz Sub-Channels • QPSK, 16QAM or 64QAM • Payload to 40 Mb/Sub-Channel

  8. PMP/PTP Coverage/Capacity and Comparisons .86 Miles 13.3 Mbs F1 F2 F1 .67 Miles 27 Mbs F1 F2 .52 Miles PTP 1.16 Miles 45 Mbs

  9. Range Variation from Antenna Selection PMP & PTP 90 sector 45 sector 22.5 sector 8T1 PTP OC3 PTP DS3 PTP .5 .57 .63 .86 .93 1.0 1.13 1.16 1.33 45 MB 13 MB Distance

  10. Comparison of Antenna Usage at Hub PMP vs. PTP 20 PTP # Antennas 7 PMP 2 1 4 8 11 15 18 20 # Buildings Added in Sector

  11. 75MHz PTP vs PMP OverSubscription 2+1 Redundant Oversubscribed PMP Sectors 25 MHz 6+1 Redundant Fixed Bandwidth PMP Sectors 15 Point to Point Links 600 MHz

  12. 70 MHz PTP vs PMP OverSubscription 1 Oversubscribed Redundant PMP Sectors 20 MHz 15 PTP Links 600 MHz 2 Fixed Bandwidth Redundant PMP Sectors

  13. TDM / ATM Architecture Comparison B-Site B-Site HUB PTP/PMP PTP/PMP PTP/PMP PTP/PMP M 1/3 M 1/3 ATM A/C DLC M 1/3 M 1/3 Backhaul Backhaul Backhaul TDM ATM

  14. Point-to-Point Radio • Relatively Easy to Deploy • Burns Resources Used or Not • Not Spectrally Efficient • Higher Capacity Potential(New High Capacity Products on the Way – OC6/OC12) • Real Estate Burdensome • Reasonably Cost Effective

  15. Point-to-Multi-Point • High Initial Costs Require Strong Demand • Very Real Estate Efficient • Spectrum Efficient • Excellent Product to Reduce Current Hub Congestion Issues • Limited Range vs PTP • Requires Traffic Management Capability

  16. Applications We’re Offering Using Our PMP/ATM Infrastructure… • Toll quality voice – Local & Long Distance • Utilizing ATM QOS • High Speed Internet / Broadband Access • Business Essentials / Office.Com • Frame Relay • Private Line / MAN’s • Native ATM • IP VPN’s • Burstable Bandwidth On Demand

  17. How it all comes together…

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