July 2009 Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [Flexible DSSS Merging Effort] Date Submitted: [15 July 2009] Source: [Kuor Hsin Chang] Company [Self] Address [] Voice:[408.623.5093] E-Mail:[kchang60@yahoo.com] Re: [] Abstract: Update on flexible DSSS proposals merging effort Purpose: Presented to the 802.15.4g SUN Task Group for consideration 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.

Kuor Hsin Chang - Self July, 2009 at San Francisco CA Flexible Direct Sequence Spread Spectrum (DSSS) Proposals Merging Effort Kuor Hsin Chang - Self July, 2009 at San Francisco CA

Six DSSS Proposals Document # Document Title 1. 15-09-0124-04 July 2009 Six DSSS Proposals Document # Document Title 1. 15-09-0124-04 multi-rate-phy-proposal 2. 15-09-0283-02 adopting-flexible-dsss-modulation-for-phy-layer 3. 15-09-0295-02 flexible-dsss-final-proposal 4. 15-09-0301-01 two-rate-dsss-for-sun 5. 15-09-0303-01 dsss-neighborhood-area-network-communications-proposal 6. 15-09-0307-01 dynamic-dsss-draft-proposal-for-sun-presentation Slide 3

Flexible DSSS Proposal July 2009 Flexible DSSS Proposal Legacy Products for 802.15.4 Provide backward compatibility to legacy products Provide an easy path for existing chip vendors to migrate Merging Philosophy: Modification of 802.15.4 DSSS technology to meet the requirements of 4g PAR Improvements with minimum modification

Merging Effort Conference Calls: May 2009 Merging Effort Conference Calls: Two conference calls between March and May meeting Three conference calls between May and July Create a proposal summary document (doc. 459/r2)

Merging Progress Agreed CRC Length: July 2009 Merging Progress Agreed CRC Length: 16 bits for short packets (< 127 Bytes) 32 bits for long packets (> 127 Bytes) Merged two proposals (doc. 295 and doc. 303) More consolidation and merging before the end of this session and next meeting Slide 6