1. doc.: IEEE 802.11-02-675r1 Submission November 2002 Motohiro Gochi, Speednet Inc.Slide 1 Why do we need Higher Throughput? Motohiro Gochi, Mgochi@speednet.co.jp Speednet Inc.

2. doc.: IEEE 802.11-02-675r1 Submission November 2002 Motohiro Gochi, Speednet Inc.Slide 2 Breakdown Of Internet Access Method in Japan Source:Ministry of Public Management,Home Affairs, Posts & Telecommunication (End of September 2002)

3. doc.: IEEE 802.11-02-675r1 Submission November 2002 Motohiro Gochi, Speednet Inc.Slide 3 Japan Broadband Internet Access Market Penetration ratio (Dial-up+BB)/Household BB/Household

4. doc.: IEEE 802.11-02-675r1 Submission November 2002 Motohiro Gochi, Speednet Inc.Slide 4 e-Japan strategy Home users dissatisfied with the current dial up environment with its low-speed,high-cost and sharing of the access line with the traditional phone line. Immediate need for always on,low-cost and High speed,Broadband infrastructure for the general public. Japanese Government come up with “e-Japan Strategy”.Within 5years,becoming cutting edge of IT in the world.

5. doc.: IEEE 802.11-02-675r1 Submission November 2002 Motohiro Gochi, Speednet Inc.Slide 5 Service Image mobile User.

6. doc.: IEEE 802.11-02-675r1 Submission November 2002 Motohiro Gochi, Speednet Inc.Slide 6 Apartment Ratio for Tokyo area 0 1,000 2,000 3,000 4,000 Number (K) 0.00% 10.00% 20.00% 30.00% 40.00% 50.00% 60.00% 70.00% 80.00% Total population (K) 2,4473,425 Apartments(K) 1,5242,361 Percentage of Apartments 62.28%68.93% SPN AreaTEPCO Hikari Area High ratio: Around 70%

7. doc.: IEEE 802.11-02-675r1 Submission November 2002 Motohiro Gochi, Speednet Inc.Slide 7 Issue for Apartments The apartment house produce “Broadband Refugees”. –Impossibility for ADSL and Fiber, Because of telephone exchange office to apartment is too long distance or Multipurpose line –It is extreamely difficult to draw optical fiber into only a specified household in aparment. –To need an agreement of a management association to introduce optical fiber and CATV into the whole apartments. (a lot of problem for facility management / taking a lot of time)

8. doc.: IEEE 802.11-02-675r1 Submission November 2002 Motohiro Gochi, Speednet Inc.Slide 8 Wireless Access solution is expected in Japan. Speedup of Wireless Access System is needed by Broad Band trend, apartment measures. By the high throughput –High throughput per user. –Increasing user number per AP. => Lower cost service => Increasing Market size.

9. doc.: IEEE 802.11-02-675r1 Submission November 2002 Motohiro Gochi, Speednet Inc.Slide 9 Proposed purpose: To improve the 802.11 wireless LAN user experience by providing significantly higher throughput for applications over a wireless LAN in the Home, Hot-spot and Enterprise Markets. Motion Proposed purpose: To improve the 802.11 wireless LAN user experience by providing significantly higher throughput for applications over a wireless LAN in the Home, Hot-spot and Enterprise Markets.