Enhanced Data rates for GSM Evolution
Digital mobile phone technology / From Wikipedia, the free encyclopedia
Enhanced Data rates for GSM Evolution (EDGE), also known as 2.75G, Enhanced GPRS (EGPRS), IMT Single Carrier (IMT-SC), and Enhanced Data rates for Global Evolution, is a 2G digital mobile phone technology for data transmission. It is a subset of General Packet Radio Service (GPRS) on the GSM network and improves upon it offering speeds close to 3G technology, hence the name 2.75G.
![](http://upload.wikimedia.org/wikipedia/commons/a/a7/EDGE_symbol_Android.png)
EDGE was deployed on GSM networks beginning in 2003 – initially by Cingular (now AT&T) in the United States.[1] Through the introduction of sophisticated methods of coding and transmitting data, EDGE delivers higher bit-rates per radio channel, resulting in a threefold increase in capacity and performance compared with an ordinary GSM/GPRS connection - originally a max speed of 384 kbit/s.[2] EDGE can be used for any packet switched application, such as an Internet connection.
EDGE is standardized also by 3GPP as part of the GSM family. A variant, so called Compact-EDGE, was developed for use in a portion of Digital AMPS network spectrum.[3] EDGE is part of ITU's 3G definition.[4] Evolved EDGE continues in release 7 of the 3GPP standard providing reduced latency and more than doubled performance e.g. to complement High-Speed Packet Access (HSPA). Peak bit-rates of up to 1 Mbit/s and typical bit-rates of 400 kbit/s can be expected.