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Evolution-Data Optimized

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Evolution-Data Optimized or Evolution-Data only, abbreviated as EV-DO or EVDO and often EV, is a telecommunications standard for the wireless transmission of data through radio signals, typically for broadband Internet access. It uses multiplexing techniques including Code division multiple access (CDMA) as well as Time division multiple access (TDMA) to maximize both individual user’s throughput and the overall system throughput. It is standardized by 3rd Generation Partnership Project 2 (3GPP2) as part of the CDMA2000 family of standards and has been adopted by many mobile phone service providers around the world – particularly those previously employing CDMA networks. It is also used on the Globalstar satellite phone network.[1]

EV-DO was designed as an evolution of the CDMA2000 (IS-2000) standard that would support high data rates and could be deployed alongside a wireless carrier’s voice services. An EV-DO channel has a bandwidth of 1.25 MHz, the same bandwidth size that IS-95A (IS-95) and IS-2000 (1xRTT) use.[2] The channel structure, on the other hand, is very different. Additionally, the back-end network is entirely packet-based, and thus is not constrained by the restrictions typically present on a circuit switched network.

The EV-DO feature of CDMA2000 networks provides access to mobile devices with forward link air interface speeds of up to 2.4 Mbit/s with Rev. 0 and up to 3.1 Mbit/s with Rev. A. The reverse link rate for Rev. 0 can operate up to 153 kbit/s, while Rev. A can operate at up to 1.8 Mbit/s. It was designed to be operated end-to-end as an IP based network, and so it can support any application which can operate on such a network and bit rate constraints.

This entry was posted on Monday, September 8th, 2008 at 3:41 am and is filed under EVDO. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

29 Responses to “Evolution-Data Optimized”

  1. good article

  2. I used EVDO device launched by Worldcall telecom Limited Pakistan in Karachi.
    the device I used was of 512Kbs speed. I found it very thrilling and fast. browsing is fun. downloading is extremely good.

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  4. hi, its good but yaar is ki speed kabhi kabhi to itni slow ho jati hai k bus.. its good for its size and mobility. but speed ka masla hia.

  5. Keep up the good work! :)

  6. Thanks a lot for this post

  7. Nice blog btw

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  12. I really love to try it out. This is something new

  13. Hmm. Good.

  14. Thanks for your interesting article

  15. Thanks a lot for this post

  16. Thanks for the post, I have been having the same problems.

  17. Hmmm, I am tempted to try this.

  18. I really love to try it out. This is something new

  19. Thanks for your interesting article

  20. I really love to try it out. This is something new

  21. Hmm. Good question.

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  23. Thanks for the great tips.

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  25. I came across. Thank you.

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  27. Very nice site! is it yours too

  28. Evolution-Data Optimized great article thank you.

  29. Thanks for the great tips….

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