GSM Technology

Enhanced Data Rates for GSM Evolution

The EDGE standard (Enhanced Data Rates for GSM Evolution.) is an evolution of the GSM standard, modifying the type of modulation. Like the GPRS standard, the EDGE standard is used as a transition to the third generation of mobile telephony (3G).

EDGE (also named 2.75G to refer to the EDGE standard) uses a different modulation of the modulation used by GSM (EDGE uses 8-PSK modulation), which implies a modification of base stations and mobile terminals. EDGE can thus multiply the data rate by a factor of 3 with a smaller coverage. In EDGE theory, speeds up to 384 kbit/s can be achieved for fixed stations (pedestrians and slow vehicles) and up to 144 kbit/s for mobile stations.