EDGE Technology

1. EDGE Technology by Somioranjan Mekap EC200118067 Advisor Mr. N Srinivasu

2. EDGE Technology • Evolutionary path to 3G services for GSM and TDMA operators • Builds on General Packet Radio Service (GPRS) air interface and networks • Phase 1 (Release’99 & 2002 deployment) supports best effort packet data at speeds up to about 384 kbps • Phase 2 (Release’2000 & 2003 deployment) will add Voice over IP capability

3. GPRS Airlink • General Packet Radio Service (GPRS) • Same GMSK modulation as GSM • 4 channel coding modes • Packet-mode supporting up to about 144 kbps • Flexible time slot allocation (1-8) • Radio resources shared dynamically between speech and data services • Independent uplink and downlink resource allocation

4. EDGE Airlink • Extends GPRS packet data with adaptive modulation/coding • 2x spectral efficiency of GPRS for best effort data • 8-PSK/GMSK at 271 ksps in 200 KHz RF channels supports 8.2 to 59.2 kbps per time slot • Supports peak rates over 384 kbps • Requires linear amplifiers with < 3 dB peak to average power ratio using linearized GMSK pulses • Initial deployment with less than 2x 1 MHz using 1/3 reuse with EDGE Compact as a complementary data service

5. Conversion of GPRS to EGPRS EGPRS introduces changes to GPRS only on the base station system part of the network.

6. GPRS and EDGE: A comparison of technical data.

7. EDGE Modulation Techniques

8. Coding schemes for GPRS and EGPRS

9. Packet Handling

10. Addressing Window Protocol stalling. (Legend: MAC, Mobile allocation channel; PCU, Packet control unit; RLC, Radio link control)

11. Interleaving (Legend: CS, coding scheme; EGPRS, enhanced GPRS; MCS, modulation coding scheme)

12. Requirements on EDGE – EDGE- and non-EDGE-capable mobile stations should be able to share one and the same time slot. – EDGE- and non-EDGE-capable transceivers should be deployable in the same spectrum. – A partial introduction of EDGE should be possible. It was so decided that two classes of terminals should be supported by the EDGE standard: – A terminal that provides 8PSK capability in the downlink only, and – A terminal that provides 8PSK in the uplink and downlink.

13. EDGE Benefits • Short-term benefits: Capacity and performance • Mid-term benefits: Complementary technology • Long-term benefit: Harmonization with WCDMA • For Operator: • Migration to wireless multimedia services • Improved customer satisfaction • Quick network implementation • Optimized network investment as GSM enhancement

14. Benefits to End Users • Improved quality of service • Personal multimedia services • Potentially lower price per bit

15. Conclusion • EDGE is a 3G technology offering a common migration path and convergence for GSM and TDMA operators • EDGE Compact can be deployed with < 2x 1 MHz of spectrum • EDGE supports IP packet data at peak rates > 384 kbps • Voice over IP is planned for EDGE R’2000 standards

16. [1] http://www.mobileipworld.com. [2] “Data capabilities for GSM Evolution to UMTS”, November19, 2002. http://www.rysavy.com [3] Nokia, “A comparison between EDGE and Alternative Technologies”, June 5,2001. http://www.3Gamericas.org [4] Enhanced Data Rates for GSM Evolution EDGE; Nokia’s vision for a service platform supporting high-speed data applications. http://www.nokia.com [5] EDGE;Introduction of high-speed data in GSM/GPRS networks.http://ericsson.com. [6]IEEE Personal Communications • June 1999 [7] http://gsmworld.com References

17. Thank You!