Project: IEEE 802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [TG3a Compromise Direction] Date Submitted: [16May2005] Source: [John Barr] Company [Motorola] Address [1303 E. Golf Road, Schuamburg, IL 60196] Voice:[+1 847 576-8706], FAX: [+1 847 576-6758], E-Mail:[John.Barr@Motorola.com] Re: [] Abstract: [Summary slide regarding possible TG3a compromise. Presented during compromise panel to set stage for possible way forward. Given the recent announcement from the BT SIG that they are proceeding on a plan to incorporate UWB as a next generation radio, 802.15.3a needs to move forward quickly or allow other standards groups to define how UWB products will enter the market.] Purpose: [Inform TG3a members of a possible compromise that may allow TG3a to move forward towards drafting standard that will be accepted by both DS-UWB and MB-OFDM proponents.] Notice: This document has been prepared to assist the IEEE 802.15. 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 802.15. July 2004 doc.: IEEE 802.15-04/0395r0 Dr. John R. Barr, Motorola John Barr, Motorola

PHY MAC DS-UWB 15.3 PNC Mode Yes July 2005 MB-OFDM Operational Coexistence Timing Regulatory DS-UWB 15.3 PNC Mode Yes July 2005 PHY independent approach MB-OFDM Distributed (new 15.3) TDB TBD Options: 1. (NO) Only Dual PHY 2. Parallel TGs with own MACs (common release dates?) 3. Separate into new WG’s Unique model for each MAC version. New fast track PAR for distributed MAC based on WiMedia copyrighted draft. New PAR to create common coexistence mechanisms that would be required for future compliance. First release may not include due to timing. Drafts ready for submission for WG ballot. Need method to link final standard release to ensure both occur at same time, but not delayed unreasonably. Dr. John R. Barr, Motorola

Compromise Proposal Confirm Merger #1 proposal with the following additions: Include Merger #2 proposal as an option for portable (battery operated) devices. Either Merger #1 or Merger #2 proposal may be implemented as the only PHY in a battery operated device. All mains powered devices shall include Merger #1 proposal or both proposals. Dr. John R. Barr, Motorola