EDGE is a way to increase data speeds on GSM radio link. By using the technique of modulation and coding schemes that are different from the previous GPRS system, and by doing the settings in the radio link protocol, EDGE offers a capacity that is significantly greater than that possessed by the GPRS system. So generally there are three aspects of new techniques if we compare to EDGE to GPRS, which is
* Modulation Technique
* Coding Techniques
* Radio Access Network (RAN)
Source : http://id.wikipedia.org/wiki/Enhanced_Data_Rates_for_GSM_Evolution#Proses_Kecepatan_EDGE
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