WiMAX Revealed

1. WiMAX Revealed Team Excel + Bryan T.

2. Customer Problem Expensive/Fragmented Internet Access (Home, Office, HotSpot, and Mobility) Technology Limitations Problem Solved….. WiMAX

3. Competitive Positioning “City-wide Hot Spot” • Wireless • Mobile • Open • High Speed • Converged • (voice, data, video)

4. Carrier Problem Declining Voice Revenue VOIP & IP Based Communication (Data) Introduce New Services & Increase Revenue WiMAX

5. WiMAX Solution Need to increase sales and gain market share Create new products with competitive edge Declining voice revenue WiMAX

6. End User Experience (video) XOHM-MOTO

7. Technical Overview Dan Hoadley

8. Performance • Spread Spectrum • Up to 72 Mbps line of site • Range up to 50 km at lower data rates • Standard supports 2GHz – 66 GHz • Can use bandwidths between 1.25 MHz and 20 MHz

9. WiMAX Uses • Extended range will allow connectivity in low population density areas • High speed broadband trunking • Last mile connectivity • Connectivity for mobile users • Potential to supplement or replace 802.11 hotspots

10. Technology Features • Merged voice and data over IP • QoS in standard to support voice and other timing sensitive applications • Support for high data rates for mobile users • Provides scalable bandwidths across sub-channels for more efficient spectrum

11. OFDM Spectrum divided into sub-channelsIndividual user sends data across all sub-channel

12. OFDMA/TDD • Similar to OFDM except multiple users can be assigned to a sub-channel within a given time slot • Users can also be assign time slots as well

13. SOFDMA/TDD • SOFDMA/TDD provide OFDMA and scalable bandwidths to address sub-channels with large amounts of interference and provide higher bandwidths for channels with lower interference. Thus providing greater spectrum efficiency

14. Conclusion • Additional addendums to the 802.16 standard are being developed. • Potentially will expand from mobile and backbone trunking to replacing 802.11 and provide last mile connectivity • Implementation of an FDD version of mobile WiMAX is more political than technical, but it will be critical when new spectrum is awarded, or re-allocated from GSM bands

15. History Michael Ehrenhofer

16. Evolution of 802.16 • Created in 1999 to standardize BWA • 802.16-2001 published in December ’01 • Standard for Local and Metropolitan Area Networks • 802.16a – added frequencies below 11GHz • 802.16b – added QoS features and added frequencies between 5 & 6 GHz • 802.16c – detailed operations & interoperability

17. Evolution of 802.16 (cont.) • Wireless Forum established in June 2001 for “WiMAX Certified” process standardization • 802.16d was a major revision • Known as 802.16-2004 for the year introduced • Only fixed mode • Added a number of additional features • 256 carrier OFDM • Aligned with ETSI HiperMAN standard to for Global operation and deployment

18. Evolution of 802.16 (cont.) • 802.16e was another update • Known as 802.16(e)-2005 for the year introduced • Added mobile use and handoffs between towers • Additional amendments and status • 802.16f-2005 Management Information Base • 802.16g-2007 Management Plane procedures and services • 802.16h-Draft Improved coexistence mechanisms for license exempt operation • 802.16i-Draft Modification to Management Plane Procedures and Services • 802.16j-Draft Multi-hop relay • 802.16k-2007 Bridging of 802.16 • 802.16m-Pre-Draft Advanced air interface

19. Parintins, Brazil WiMAX deployment • 114,000 residents in the midst of the Amazon • In 2006, Intel and Brazil installed WiMAX • Healthcare center • Three public schools • Community center • Features • Video-teleconference • Telemedicine center • Internet access

20. Hurricane Katrina Existing communication network destroyed Emergency services had no single system WiMAX and Wi-Fi Spectrum issues resolved by FCC

21. Folsom, CA Business case (2005) for WiMAX service Four mini-base stations connected by fiber Area is ~ 6.5 miles diameter $128MM investment with a 4 year break even point

22. Current State Raj Varma

23. Current State of WiMAX

24. WiMAX Companies

25. WiMAX Markets

26. WiMAX SERVICE PROVIDER TRENDS • WiMAX operators care about certification, standardization, and economies of scale in the medium to long term. • Operators are anxious to see the development of rich ecosystems that comprise handset suppliers and application developers. • 65% of service providers interviewed prefer to wait for the new version of WiMAX to be available before investing large amounts into network build-out or expansion. 802.16e-2007 is now perceived as a total solution for both fixed and mobile applications. • At the end of 2007, there were 1,650,000 WiMAX subscribers ( 64% residential and 36% business)

27. WiMAX Performance forecast

28. Market Drivers • Government push to reduce the digital divide is making gains for broadband wireless. • Lack of uniform and widely available Internet service widely dominated by dial-up users. • Demand for broadband access by individuals, businesses, and communities for high speed access anytime and anywhere. • Consumer value-added services offering • Changing trend from walled services to open networks

29. WiMAX Trivia • Name any 4 WiMAX Providers in the USA • MetroBridge Networks • Sprint Nextel • Clearwire • Xanadoo • NextWave • Name any 4 hardware manufacturers • Motorola • Intel • Samsung • Alvarion • Nortel Networks

30. Future State Joe Mathew

31. Future Technology • IEEE 802.16m • In draft phase • Latest amendment of 802.16 specification • Advanced air interface • Improved performance • Powerful and efficient security mechanisms • Spectral efficiency up to 10bps/Hz • Date rate of 100Mbps@high mobility • Applications – High speed multimedia streaming, Rich Content and High throughput

32. Hardware/ Software Providers • Intel • Active participant in WiMAX Forum • Partner with mobile operators, laptop manufactures to standardize IEEE specification • Integrate WiMAX network device onto laptops. • Motorola • Involved in 47 active trials • Indoor and outdoor Customer Premise Equipment • Access point controllers and Gateways

33. Network Providers • Xohm • Subsidiary of Sprint Nextel • Owns 2.5 GHz in many metropolitan cities • WiMAX network setup in Chicago, Baltimore and Washington DC. • ClearWire • Partner with Intel • WiMAX field trial in progress in West Coast • Plans to launch WiMAX in LasVegas, Portland Oregon, Atlanta, and Michigan in 2008

34. Business Analysis Brian Tabiadon

35. Market Size • The WiMAX potential market is world wide. • WiMAX subscriber base grew 85% between Q1 2006 and Q1 2007

36. WiMAX Market Segments • Mobile Market • Alvarion forecasts that the mobile WiMAX market size will reach between $10 billion to $20 billion • More than 80 million subscribers • Broadband Market: • Broadband markets in Latin America are already entering a mature stage, with almost 12 million subscribers in the five major markets - Argentina, Brazil, Chile, Colombia, and Mexico.

37. WiMAX Market Segments • Fixed and mobile equipment: • The Mobile WiMAX market is heating up quickly • Worldwide sales of fixed and mobile WiMAX equipment up 6% in 3Q07 to $206 million following a 14% jump in 2Q07

38. Industry Financials

39. Business Models/Revenue Potential • The first is the "base business model", which assumes that a wireless broadband system would be a fully self-contained enterprise, with independent finances. • The second “Internet service provider (ISP)” would be brought in as an operating partner and, potentially, as an investor.

40. Business Models/Revenue Potential The third scenario envisions the creation of a “local consortium” of major institutional users to own, manage, operate and be served by the system.. Fourth, "membership" scenario was considered. Service would not be offered to the public. Instead, the system would be jointly financed and run as a private, shared facility by a handful of large users.

41. In Summary- Challenges • The market for WiMAX is large and unfilled, but will people flock to it. • Many challenges with deploying large regions for reasonable costs could allow many rural areas and developing countries to capitalize on broadband technologies. • Minimal returns and high risks.

42. Questions