Sunday, September 6, 2009

什麼是 EVDO ?

EVDO (Evolution-Data Optimized or Evolution-Data)


網路上查詢 EVDO在 英文的定義結果:


EV-DO - Evolution-Data Optimized or Evolution-Data only, abbreviated as EV-DO or EVDO and often EV, is a telecommunications standard for the wireless ...


en.wikipedia.org/wiki/EV-DO


ev do - A wireless radio broadband data standard adopted by many CDMA mobile-phone service providers in Japan, Korea, Brazil, Israel, the United States, Australia, Canada, New Zealand, Venezuela and Mexico. ...


www.goingwimax.com/wimax-glossary/


Part of the CDMA2000 family of standards, it is wireless radio broadband protocol that delivers download data rates of up to 2.4 Mbps. ...


about.telus.com/investors/annualreport2005/en/glossaryBot.html


Evolution data maximized (CMDA2000 1x EVDO) is based on CDMA2000. EVDO supports mobile data communications at speeds ranging from 400 Kbps to 2 Mbps.


resources.bandwidthmarket.com/corporate/whatis.techtarget.com/definition/0,,sid9_gci1193741,00.html


ev do - evolution-data only. This is the fastest cellphone data technology available in the US and is available only on CDMA networks. ...


www.chrsolutions.com/TelecomGlossary.html




3G is designed to provide voice and high-speed mobile data using the cellular approach already proven to work in mobile phone networks. The biggest obstacle to implementing high speed wireless networks is the lack of bandwidth, or range of usable frequencies. Just as only so many radio stations can be squeezed onto the FM dial, only so much data can be transmitted across the available bandwidth. EVDO is an advanced CDMA technology developed by Qualcomm to deal with this limitation.








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