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  1. 1. Prepared by: Vinay Kr. Gupta (0700410088)
  2. 2. <ul><li>The GSM standards is being developed to support mobile services with radio interface data rates even over 400 Kbit/s. This work is being performed under the ETSI. </li></ul><ul><li>The major change in the GSM standard into EDGE standard is the 8(Phase Shift Keying)PSK modulation. </li></ul>
  3. 3. <ul><li>EDGE is a global radio based high speed mobile data standard that can be introduced into GSM/GPRS networks. </li></ul><ul><li>It is a digital mobile phone technology that allows it to increase data transmission rate and improve data transmission reliability. </li></ul>
  4. 5. <ul><li>Enhanced Data rates for GSM Evolution (EDGE) (also known as Enhanced GPRS (EGPRS), is a digital mobile phone technology that allows improved data transmission rates as a backward-compatible extension of GSM. </li></ul><ul><li>EDGE is considered a 3G radio technology and is part of ITU's 3G definition. EDGE was deployed on GSM networks beginning in 2003 — initially by Cingular (now AT&T) in the United States. </li></ul>
  5. 6. <ul><li>EDGE is an official 3G cellular technology that can be deployed within an operator's existing 850, 900, 1800 and 1900 MHz spectrum bands. A powerful enhancement to GSM/GPRS networks, EDGE increases data rates by a factor of three over GPRS and doubles data capacity using the same portion of an operators’ valuable spectrum. </li></ul><ul><li>EDGE employs three advanced techniques in the radio link that allow EDGE to achieve extremely high spectral efficiency for narrowband cellular-data25 services </li></ul>
  6. 7. The resulting throughput per time slot with EDGE can vary from 8.8 kbps under adverse conditions to 59.2 kbps with a very good carrier-to-interference (C/I) ratio .
  7. 8. <ul><li>EDGE makes full use of the capacity in the available radio spectrum. In this regard, EDGE is as effective a technique for expanding data capacity as the AMR codec is for expanding voice capacity. </li></ul><ul><li>It can be used both packet- switched and circuit-switched voice and data services. High-speed data applications such as video services and other multimedia benefit from EGPRS' increased data capacity. </li></ul>
  8. 10. <ul><li>• Economic forces – less costly than upgrading to UMTS </li></ul><ul><li>• Easy to offer global service to subscribers – 82% of world market is GSM which is already equipped for easy roaming and billing </li></ul><ul><li>• Higher data rates and system capacity </li></ul><ul><li>• Broadband-like speeds achievable </li></ul><ul><li>• Much less expensive mobiles </li></ul>
  9. 11. <ul><li>Basically, EDGE only introduces a new modulation technique and new channel coding that can be used to transmit both packet-switched and circuit-switched voice and data services. </li></ul><ul><li>EDGE is an add-on to GPRS and cannot work alone. And is therefore much easier to introduce than GPRS. GPRS has a greater impact on the GSM system than EDGE has. </li></ul>
  10. 12. <ul><li>EDGE offers significantly higher throughput and capacity .This decreases the number of radio resources required to support the same traffic, thus freeing up capacity for more data or voice services. </li></ul><ul><li>EDGE can transmit three times as many bits as GPRS during the same period of time. This is the main reason for the higher EDGE bit rates.  </li></ul>
  11. 13. <ul><li>Designed for existing spectrum: 800/900/1800/1900MHz </li></ul><ul><li>Low risk technology evolution from GSM/GPRS </li></ul><ul><li>Easy implementation on a GSM/GPRS network </li></ul><ul><li>Cost effective </li></ul><ul><li>Increase the capacity and triples the data rate of GPRS </li></ul><ul><li>Enabling new multimedia services </li></ul>
  12. 14. <ul><li>EDGE transmits both packet-switched and circuit-switched voice and data services. </li></ul><ul><li>High speed Data rates </li></ul><ul><li>EDGE Evolution continues in Release 7 of the 3GPP standard providing doubled performance e.g.to complement High-Speed Packet Access (HSPA). </li></ul><ul><li>Voice over IP is planned for EDGE R’2000 Standards </li></ul>
  13. 15. <ul><li>http://www.mobileipworld.com . </li></ul><ul><li>“ Data capabilities for GSM Evolution to UMTS”, November19, 2002. http://www.rysavy.com </li></ul><ul><li>Nokia, “A comparison between EDGE and Alternative Technologies”, June 5,2001. http://www.3Gamericas.org </li></ul><ul><li>Enhanced Data Rates for GSM Evolution EDGE; Nokia’s vision for a service platform supporting high-speed data applications. http://www.nokia.com </li></ul><ul><li>EDGE; Introduction of high-speed data in GSM/GPRS networks.http://ericsson.com. </li></ul><ul><li>IEEE Personal Communications • June 1999 </li></ul><ul><li>http://gsmworld.com </li></ul>