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Top message:  Which is better CDMA or GSM??? by fairplayinc   Oct 6, 2004, 10:15 AM

Replying to:  Re: Which is better CDMA or GSM??? by sansl3   Sep 12, 2007, 1:42 PM

Re: Which is better CDMA or GSM???

by nextel18    Sep 12, 2007, 2:07 PM

I actually talked about this in many forums out there including the Sprint forum saying HSDPA VS EV-DO. Please go look. WCDMA uses the similar processes that CDMA does. Some differences. Radio channels are 5 MHz with WCDMA but with 1.25 MHz with CDMA. Others are more technical. They both allow for more users to be on the network and higher bandwidth and speeds.


High speed downlink Packet access or HSPDA
Downlink up to 14.4mb/s.
HSUPA (high speed uplnk packet access:
Uplink up to 5.76 mb/s.
Next generation or evolved HSPA:
42mb/s down, 11mb/s up.
Next generation or HSOPA which is High Speed OFDM:
100mb/s down, 50mb/s up.

EV-DO REV O: 2.4mb/s down. 300k-700k up.
REV A; 3.1mb/s down. 1.8mb/s up.
REV B; 46mb/s down. 27mb/s up.
REV C; keeps going up.
UMB; 288mb/s down. 75mb/s up.

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