Difference in GSM, GPRS, and 3G?


From what I understand GSM, GPRS and 3G are forms of wireless networks, in order of advancing technology.

I assume GPRS is IP based, is 3G IP based as well?

And do different forms have different battery consumption on Blackberry type devices?

If someone could provide a very quick explanation of the differences between the three types, that would be great!
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mrroonieConnect With a Mentor Commented:
3/4 of the way down this page tells you the differences - http://www.uktelematicsonline.co.uk/html/wireless_wan_s.html
hope it helps
Darr247Connect With a Mentor Commented:
Actually, Table 1 (hit PgDn once there) outlines the differences pretty well.
There's also 1xRTT, CDMA, CDMA2000, EDGE, EVDO (and its Rev A), UMTS, HSDPA... with 4g coming. :-)

Much apllied information is available on consumer message boards like evdoforums.com and forum.3gconsumers.com if you have one already, or if you are looking for real-world user feedback/tips before purchasing end-user hardware.
bruce_77Author Commented:
Thanks guys...

Just one final question, why does the type of technology affect battery life?
ALogvinConnect With a Mentor Commented:
There are several reasons... some technologies require a more steady connection to the tower, which requires the antenna to be used more. Some technologies use higher frequencies, which may require more juice.

Rule of thumb is GSM carriers (t-mobile, AT&T) do much better with battery life. I've run tests every 2 years with all blackberries from the major carriers (tmobile att verizon alltel sprint) and always have better luck with GSM.

Check www.aldacom.com they have a very nice Glossary that will answer your questions.
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