2.75G / EDGE (Second Generation)

Second Generation Wireless Communication (2.75G/EDGE)

GPRS networks evolved to EDGE networks with the introduction of 8PSK encoding. Enhanced Data rates for GSM Evolution, Enhanced GPRS (EGPRS), or IMT Single Carrier (IMT-SC) is a backward-compatible digital mobile phone technology that allows improved data transmission rates, as an extension on top of standard GSM. EDGE was deployed on GSM networks beginning in 2003—initially by Cingular (now AT&T) in the United States.

EDGE is standardized by 3GPP as part of the GSM family, and it is an upgrade that provides a potential three-fold increase in capacity of GSM/GPRS networks. The specification achieves higher data-rates (up to 236.8 Kbit/s) by switching to more sophisticated methods of coding (8PSK), within existing GSM timeslots.

Keys:

• In between 2G and 3G there is another generation called 2.75G.
• 2.75G represents handsets with data capabilities over GPRS.
• But this had not brought out any new revolution.