EDGE is designed to enhance the existing GSM network and therefore should be cheaper to deploy than WCDMA. However, it doesn't offer the same kind of capacity improvements.
EDGE is an acronym for Enhanced Global Rates for Global Evolution. WCDMA stands for Wide Band Code Division Multiple Access, while GSM stands for Global Systems for Mobile Communications.
Enhanced Data rates for GSM Evolution (EDGE), Enhanced GPRS (EGPRS), or IMT Single Carrier (IMT-SC) is a digital mobile phone technology that allows increased data transmission rates and improved data transmission reliability.
EDGE (also known as Enhanced Data Rates for Global Evolution) is a radio signalling technology for 3G mobile networks. It boosts data transfer rates and volumes on existing GSM/GPRS networks by significantly increasing data transfer speeds.
How does EDGE work?
EDGE works by improving the signalling interface used to communicate over the radio waves. Typically, EDGE brings three times the performance of GPRS, achieving an average data rate of 80 to 160 kbps per user with mobile terminals supporting 2-4 timeslots. It is great for applications that transfer large amounts of data between a mobile phone and enterprise networks - such as rich email messages that include attachments.
About EDGE
Due to its high data transfer rates, EDGE has been adopted as part of ITU's (International Telecommunication Union) family of technologies. Currently, EDGE is standardized by the same 3GPP standardization body as the 3G technology, WCDMA, harmonizing the development of both EDGE and WCDMA.
EDGE benefits
* Faster connection
* Greater data volumes achieved
* Significant increase in functionality
* Can interoperate with GSM networks for global coverage
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