1. April 19
doc.: IEEE /424r1
March 2006
Project: IEEE P Working Group for Wireless Personal Area Networks (WPANs)
Submission Title: SFD Recommendation.
Date Submitted: March 8, 2006
Source: Vern Brethour, Time Domain Corp
Contact: Vern Brethour, Time Domain Corp
Voice: ,
Re: TG4A
Abstract: SFD recommendation from Francois Chin.
Purpose: To capture the current position that Francois is holding.
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
Vern Brethour
Stuart J. Kerry - Philips Semiconductors, Inc.

2. New e-mail from Francois’ clears up the confusion from this morning.
March 2006
New from Francois’ clears up the confusion from this morning.
Francois has small children.
The man apparently never sleeps.
He has already gotten back to us from the query we sent to him this morning!
This presentation captures his (new) recommendation in a format suitable for voting.
Vern Brethour

3. Francois’ new SFD Recommendation.
March 2006
Francois’ new SFD Recommendation.
Use Length-8 SFD (Francois’ original sequence #1)
Extended SFD for 0.1Mbps Mode as an 8x symbol repetition.
SFD for 0.8Mbps & higher Mode
Preamble S … S -S -S -S -S
Preamble
SFD for 0.1Mbps Mode S … S -S … -S -S … -S … … … -S … -S
1st symbol
repetition
2nd symbol
repetition
8th symbol
repetition
Vern Brethour