September 2004 Roberto Aiello, Staccato Communications Slide 1 doc.: a Submission Project: IEEE P Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [Compromise Problem Framing] Date Submitted: [15 September, 2004] Source: [Roberto Aiello] Company [Staccato Communications] Address [5893 Oberlin Drive, Suite 108, San Diego, CA 92121, USA] Voice:[ ], FAX: [ ], Re: [Compromise discussion] Abstract:[A look at the situation] Purpose:[] Notice:This document has been prepared to assist the IEEE P 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 P

September 2004 Roberto Aiello, Staccato Communications Slide 2 doc.: a Submission Generation of product – As companies invest in silicon, they are less willing to consider anything that would represent a reset of development. Jan 03 Jan 04 Jan 05 XSI Defends Development MBOA Defends Development More information on compromises XSI stop merging discussion (conf. call) XSI stop compromise negotiation with Intel Freescale/MBOA stop compromise negotiation 14 companies merge in MB-OFDM proposal Freescale not receptive to negotiate compromise Freescale proposes dual PHY

September 2004 Roberto Aiello, Staccato Communications Slide 3 doc.: a Submission Our History of Compromise We have reset our programs repeatedly based upon “best technical solution” –Multibanding –Multibanding w/ OFDM Various companies have given up developments such as Spectral Keying, frequency modulated OFDM and high rate sampling

September 2004 Roberto Aiello, Staccato Communications Slide 4 doc.: a Submission Options / Issues Dual PHY –Maximizes market fragmentation –Does not provide benefit to customers –Complicates situation in USB/WiMedia/1394 –Complicates situation into regulatory bodies Hybridization –Delays market –Resets silicon investments

September 2004 Roberto Aiello, Staccato Communications Slide 5 doc.: a Submission Issues With CSM Proposal Communication is likely to be reduced to the least common denominator It encourages fragmentation It forces more intense use of channels, complicating the SOP situation in dense areas It preserves DS development at the expense of other companies

September 2004 Roberto Aiello, Staccato Communications Slide 6 doc.: a Submission The Weighted Effects of Change The number of companies who must change is asymmetric Assuming a change, who takes the hit –OFDM silicon providers Approximately 16 (TI, ST, Philips, Intel, Infineon, Wisair, Staccato, Alereon, etc) –DS silicon providers Approximately 1 (Freescale) ?

September 2004 Roberto Aiello, Staccato Communications Slide 7 doc.: a Submission Conclusions Compromise is challenging at this stage of the game. Any path has severe market effects It is necessary to coordinate with all OFDM authors and supporters We hope to present a proposal in Nov.