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Technical White Paper
ProviBand Next GenerationWireless Backhaul Technology
Ran Soffer
January 2006
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Introduction......................................................................................................................... 3
Access Network Topologies and Evolution........................................................................ 4
Cellular Network Evolution................................................................................................ 5Wireless Backhaul (Wireless PTP Links)........................................................................... 6
Class of Availability (CoA) ................................................................................................ 7ProviBand Technology ....................................................................................................... 9
Case Study .......................................................................................................................... 9
Summary........................................................................................................................... 11
Appendix: Cellular Network Topologies.......................................................................... 12
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Introduction
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Traditional Next Generation
Protocols Synchronous TDM traffic(e.g., E1/T1,
SONET/SDH)
Mixed TDM and packettraffic
Classes of availability Single CoA (voice
channels)
Multiple CoA (voice, Web
browsing, text massages,
VoD, etc.)Capacities Low capacity
Symmetric servicesHigh capacityAsymmetric services
(requires higher
downstream than upstream)
Rates Fixed rate
Symmetric bandwidth
Dynamic rate adaptation
using ACM techniqueAsymmetric bandwidth
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ProviBand Technology,*2,!!
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