
12-05-2009, 01:48 AM
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| | CrackBerry Addict Device(s): Bold 9930 and PlayBook 16GB Carrier: Verizon | | Location: Sacramento, CA Area Join Date: Sep 2008 Posts: 747 Likes Received: 1
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Quote:
Originally Posted by Coraya Why wasn't verizon a little smarter In this aream why are we not GSM ><
Posted from my CrackBerry at wapforums.crackberry.com | With due respect to GSM and its widespread use (and apparent ease of rollout, hence its widespread use), CDMA is a far, far, far superior standard. AT&Ts network capacity problems -- directly related to GSM limitations and its inefficient use of radio spectrum.
GSM uses time and channel segments within a given spread of spectrum. It provides a tangible, quantifiable limit on use.
CDMA uses the entire spectrum, and instead of using time and channel segments, uses code instead. The only real limitation is power.
In any practical application, CDMA has between 6-8 times the capacity of GSM. From the time that Verizon and Sprint had 1XRTT standardized across the networks, rolling out EVDO/3G was a natural evolution. AT&T had no such luck migrating from TDMA to GSM, and HSPA is not a simple evolution of GPRS (GSM/EDGE).
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