1. Andmeside IRT 0030 loeng 826. okt. 2005 Avo Ots telekommunikatsiooni õppetool raadio- ja sidetehnika instituut avots@lr.ttu.ee

2. Open standardized technology Interoperability, roaming, competition, roadmap security, end-to-end efficiency Economies of scale  1.36 billion GSM users currently  GSM has more advanced learning curve  GSM has sustainable cost advantage Growth  GSM > 80% of all new users Source: EMC 2003 0 100 200 300 400 500 600 700 800 Millions 199319941995199619971998199920002001 2002 Mobile subscriptions GSM CDMA 900 1000 2004 (Feb) Business fundamentals driving GSM success

3. cdmaOne GSM TDMA 2G PDC CDMA2000 1x First Step into 3G GPRS 90% 10% Evolution of Mobile Systems to 3G - drivers are capacity, data speeds, lower cost of delivery for revenue growth EDGE WCDMA WCDMA CDMA2000 1x EV/DV 3G phase 1Evolved 3G 3GPP Core Network CDMA2000 1x EV/DO HSDPA HSDPA Expected market share EDGE Evolution EDGE Evolution

4. Performance evolution of cellular technologies

5. Data revenue from mobile services Cumulative revenue from mobile data services earned by the 30 leading operators reached USD 10 billion during Q3/2004. Data services revenue is growing on a wide front. Source: Informa Telecoms and Media

6. Global mobile data subscriber growth Source: Informa Telecoms and Media Mobile data subscribers millions

7. Market take-up Open standards & systems proprietary systems Terminal Server Open & Standardized interfaces Openness fuelling market growth and innovation

8. WLAN – UMTS

9. CDMA 450 CDMA 2000 1xRTT CDMA 2000 1xEV (evolution) CDMA 2000 1x EV-DO (evolution data only) BTS’s frequency adjusted to 450 MHz CDMA 450 networks Eurotel in the Czech Republic TRIATEL (formely Telecom Baltjia) in Latvia UralWestcom in Russia

10. CDMA 450 CDMA2000 1x EV (IS-856 TIA/EIA ) Forward link Reverse link

11. CDMA 450 CDMA2000 1x EV (IS-856 TIA/EIA )

12. CDMA 450 CDMA2000 1x EV-DO (IS-856)

13. CDMA 450 Nortel 1x EV-DO 450/800/1900 MHz Base Station

14. CDMA 450 Nortel 1x EV-DO

15. CDMA 450 Nortel alliance : Curitel, Synertek, and AnyData (terminal, modems) QTP-5500 1xEV-DO Test Phone (Qualcomm) 450 MhZ Data call over 1xRTT