1. Proxim Wireless Innovation: Delivering Seamless Mobility with 802. 11 and 802.16 June 2004

2. Agenda  Proxim’s Vision: Seamless Mobility  The broadband wireless revolution  802.16 rev. d broadband wireless products  802.16e – adding mobility to broadband wireless  WiMAX Opportunity  New Intel and Proxim WiMAX Partnership  WiMAX Roadmap  Evolution from proprietary to standardized broadband wireless networks  Proxim Innovation Today: New Tsunami MP.11 Products

3. In the car On the move  Wi-Fi & WiMAX & Cellular In the office Stationary  Wi-Fi Portable  Wi-Fi & WiMAX On campus Portable  Wi-Fi & WiMAX & Cellular TODAY In the cityHome or school Our Vision: Seamless Mobility Stationary, portable or on the move Seamless roaming among wireless networks Portable  Wi-Fi & WiMAX

4. 2G/2.5G Cellular 3G Cellular Source: modified diagram, from International Telecommunications Union and WiMAX Forum Fixed (Stationary) Pedestrian (Nomadic) Mobile (Vehicular) 0.1 1.010 100 Peak Data Rate per User (Mbits/second) Mobility 802.16e (WiMAX) 802.16 rev d (WiMAX) WiMAX and Wi-Fi: 802.11 (Wi-Fi) Indoor Fixed Indoor Walk Indoor Outdoor Driving the Wireless Broadband Revolution  Market is converging onto the IEEE 802 standards  WiMAX extends the coverage of Wi-Fi  3G best suited to high mobility/low data rate applications

5. The IEEE 802.16 specifications  802.16 – core specification  10-66 GHz systems  802.16a – ratified in January 2003  Systems using 11 GHz and below  ETSI has ratified HiperMAN with identical MAC “global specification”  802.16 rev. d – to be called “802.16-2004”  Incorporates 802.16a and conformance profiles/procedures from WiMAX Forum  802.16e – nomadic roaming (est. ratification in 2005)  Defines hand-off of nomadic Subscriber Station from one Base Station to another Don’t get caught up in specification alphabet soup WiMAX Forum Certified™ sets the standard

6. New Intel/Proxim Collaboration  Intel and Proxim are collaborating to develop, deliver fixed and portable WiMAX solutions  Proxim WiMAX systems to utilize Intel silicon  802.16 revD base station  Reference design: subscriber units to accelerate time-to-market  Co-development of 802.16e base station  Collaboration on standardization efforts: 802.16e  Key partnership to drive seamless mobility via WiMAX Forum Certified: Wireless infrastructure, client (SmartPhones, PDAs) support  Co-marketing efforts  Proxim and Intel are founding and principal members of the WiMAX Forum

7. Today Phase I Phase II Product Roadmap Product Roadmap Basic 802.16 rev. d system -QoS -Management -Diagnostics -Networking support Basic 802.16 rev. d system -QoS -Management -Diagnostics -Networking support Industry Evolution Proprietary broadband wireless. No integration across disparate wireless networks and devices Proprietary broadband wireless. No integration across disparate wireless networks and devices Seamless Mobility integrated Wi-Fi, WiMAX, Cellular Networks and devices Seamless Mobility integrated Wi-Fi, WiMAX, Cellular Networks and devices Phase Proxim WiMAX Roadmap Standardized & Proprietary 802.11 & 802.16 Phase III 802.11/ 802.16 - Indoor/ outdoor base station integration -Additional frequencies 802.11/ 802.16 - Indoor/ outdoor base station integration -Additional frequencies 802.16e - roaming - mobility - cellular integration - smart antennas 802.16e - roaming - mobility - cellular integration - smart antennas Proprietary Tsunami MP.11 radios Roaming for vehicles Ruggedized Proprietary Tsunami MP.11 radios Roaming for vehicles Ruggedized Proxim is the only vendor addressing seamless mobility between WiMAX, Wi-Fi and Cellular Networks

8. Branch Office ‘Hot’ Zone Enterprise Campus WiMAX Service Provider Applications POP Last Mile Access Security & Surveillance Backhaul Public Hot Spots

9. WiMAX Enterprise Applications Enterprise Campus - Fiber extension, or - Leased line replacement Security - IP video surveillance Branch Office - Leased line replacement Warehouse - Campus VoIP