1. doc.: IEEE 802.15-04/441r0 Submission 14 th September, 2004 Pekka A. Ranta, NokiaSlide 1 Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [MB-OFDM for mobile handhelds] Date Submitted: [14 th of September, 2004] Source: [Pekka A. Ranta] Company [Nokia] Address [Itämerenkatu 11-13, Helsinki, FIN-00180, Finland] Voice:[+3587180 36467], FAX: [+358 7180 36858], E-Mail:[pekka.a.ranta@nokia.com] Re: [] Abstract:[The presentation enlightens the usage scenarios of UWB in mobile phones, primary mobile requirements on UWB radios, and suitability of MB-OFDM to meet those requirements.] Purpose:[For discussion in TG3a ] Notice:This document has been prepared to assist the IEEE P802.15. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein. Release:The contributor acknowledges and accepts that this contribution becomes the property of IEEE and may be made publicly available by P802.15.

2. doc.: IEEE 802.15-04/441r0 Submission 14 th September, 2004 Pekka A. Ranta, NokiaSlide 2 Outline Content explosion call for fast local connectivity Use cases for multimedia handhelds Mobile handheld requirements for UWB Key messages

3. doc.: IEEE 802.15-04/441r0 Submission 14 th September, 2004 Pekka A. Ranta, NokiaSlide 3 Content Explosion Calls for Fast Local Connectivity Terminal categories Business terminals Multimedia terminals Game terminals Users own gigabytes of personal data Technologies Wired: USB2 and 1394 Memory cards, small optical discs Wireless: W-USB, W-1394, WLAN ad-hoc, Bluetooth Mobile device as a personal storage Exchange and transfer of content is necessity “Free” and fast local connectivity required

4. doc.: IEEE 802.15-04/441r0 Submission 14 th September, 2004 Pekka A. Ranta, NokiaSlide 4 Use cases for multimedia terminals At 2008 high-end camera phone with  several megapixel sensor,  several gigabytes of storage,  video editing capability  video super distribution capability Display & print internet W-USB, W-1394, UPnP, video-out, PCI-express, etc. Synchronisation, downloading content sharing Fast IP access

5. doc.: IEEE 802.15-04/441r0 Submission 14 th September, 2004 Pekka A. Ranta, NokiaSlide 5 Primary Mobile Handheld Requirements for UWB Coexistence with other wireless systems Worldwide standard Radio performance

6. doc.: IEEE 802.15-04/441r0 Submission 14 th September, 2004 Pekka A. Ranta, NokiaSlide 6 Coexistence with other wireless services Around meeting table different types wireless systems in use Business and private calls often occur next to PC Mobile device on table used as a conference phone UWB Cellular, Wi-Fi, BT, GPS, WiMax, etc. may be simultaneously used with UWB

7. doc.: IEEE 802.15-04/441r0 Submission 14 th September, 2004 Pekka A. Ranta, NokiaSlide 7 Coexistence with other wireless services OFDM provides low OOB emission levels –Rec. level ca. –76 dBm/MHz at cellular bands band MB-OFDM enables interference avoidance techniques including transmitter and receiver –Enables avoidance at 528 MHz resolution –Sub-carrier nulling easily achieved MB-OFDM good for narrowband interference mitigation in receivers to deal with spurious emissions in multi-radio devices

8. doc.: IEEE 802.15-04/441r0 Submission 14 th September, 2004 Pekka A. Ranta, NokiaSlide 8 Worldwide standard MB-OFDM is the strongest candidate as a WW standard due wide industry support Benefits handheld devices that roam internationally Provides affordable handheld devices by –economies of scale –no need to support multi-PHY standard –no need for interworking mechanisms

9. doc.: IEEE 802.15-04/441r0 Submission 14 th September, 2004 Pekka A. Ranta, NokiaSlide 9 Performance MB-OFDM is robust technology being able capture the most channel energy MB-OFDM complexity and power consumption well understood as based on well-known technology

10. doc.: IEEE 802.15-04/441r0 Submission 14 th September, 2004 Pekka A. Ranta, NokiaSlide 10 Key messages Fast wireless local connectivity enables the transfer of gigabytes of personal content and wireless remote displays in imaging, business and entertainment terminals Worldwide standard protects the consumer interest for affordable and user friendly handheld devices MB-OFDM is able to provide best trade-off between mobile handheld requirements