GSM, EDGE, WCDMA, GPRS, HSDPA

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Re: wcdma gprs

Old Thread, but still useful.

Wanna know diff of cdma & wcdma....or only names are identical
 

Re: gprs hsdpa

i need more information on 1G, 2G , 3G.
gprs, edge is 2G?
cdma is 2G or 3G
wcdma , hsdpa is 3G?
how gprs, edge, umts, cdma, wcdma, hsdpa are related to 2G, 3G?
 

Can i get more information about different modulation schemes of various 2g and 2.5g and 2.75g and 3g?please and thanx.
 

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