Wednesday, February 3, 2010

EV-DO Basics

  • EV-DO - Evolution Data Optimized
  • Personal broadband wireless service for a wide range of customers, from business people to students
  • Always on - - similar to DSL (wherever 3G capability is available)
  • Rides on CDMA signal- 1x data capability available everywhere CDMA voice service available
  • Up to 10 times the peak data rate of the next best public wireless solution - 800 - 1,000 Kbps (kilobits per second) average download speeds, comparable to DSL speeds
  • Allows the user to be connected herever they are are not only for email, but for downloads, large files, photos, spreadsheets, etc.
  • Advantages over WiFi:
    • Always on with seamless roaming!
    • Signal can travel on same cell sites as cell phones
    • No 300-ft range from the cell tower or "hotspot"
    • Customers can access their corporate VPN (virtual private network) anywhere they can get a cellular signal via a secure, encrypted signal
    • Can download and run video clips in real time
    • Can provide service to customers outside of cable-modem or DSL areas
  • Relatively low cost with high capacity - allows rich web browsing and application usage
  • 1xRTT: 50Kbps - 100Kbps Upload and Download (bursts to 144Kbps)
  • EVDO Rev 0: 400kbps-1000kbps Download (bursts up to 2.0Mbps), 50kbps-100kbps Upload (bursts to 144Kbps)
  • EVDO Rev A: 600Kbps-1,400Kbps Download (bursts to 3.1Mbps), 500Kbps-800Kbps Upload (bursts to 1.8Mbps)

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