Enhanced Data rates for GSM Evolution (EDGE)

Computer NetworkComputer EngineeringMCA

Enhanced Data-rates for GSM Evolution (EDGE) is an improved version of GSM providing higher data transmission rate than GSM, while being compatible with the older systems.


  • It was standardized by 3GPP as a part of GSM family and was deployed in GSM networks in 2003.

  • The other names for EDGE are Enhanced GPRS (EGPRS) and IMT-Single Carrier (IMT-SC).

  • It is compatible with any packet – switched application. It is also backward – compatible, i.e. compatible with existing or older versions.

  • It enables data to be sent over a GSM TDMA systems at speeds of 384Kbps. GSM uses the modulation technique called Gaussian Minimum Shift Keying (GMSK). EDGE achieves increased bit rate by using 8PSK modulation scheme.

  • In order to shift from GSM to GSM EDGE, additional network elements are incorporated to enable IP based data transfer. The two main additional nodes required are −

    • Gateway GPRS Service Node (GGSN)

    • Serving GPRS Service Node (SGSN)

  • GSM EDGE compatible mobile handsets are required to avail the service.

Published on 30-Oct-2018 11:08:24