1. March, 2006
Project: IEEE P Working Group for Wireless Personal Area Networks (WPANs)
Submission Title: [Summary of ad hoc meetings for potential merger]
Date Submitted: [7 March, 2006]
Source: [Chun-Ting Chou] Company [Philips]
Address [345 Scarborough Rd, Briarcliff Manor, NY 10510]
Voice:[ ], FAX: [ ],
Re: [N/A]
Abstract: [Summary of agreements and remaining issues]
Purpose: [Review of agreements in the ad hoc meeting and remaining issues to be discussed based on the technical discussion during the ad hoc meetings since Hawaii meeting in Jan. 2006]
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
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Chun-Ting Chou, Philips

2. March, 2006
A1: Beaconing
All mesh-capable devices (including PNC and DEV) should send beacons
All beaconing devices may be considered as “PNCs” and therefore, SOP has to be solved 2 1
Master (PNC/FFD)
Slave (DEV/RFD)
Control & Data path
Mesh Control & Data path
Data path
Mesh Data path 6 A 5 C 3 7 4 8 B 9
Inter-piconet
Communications
Source: Michael Sim’s presentation 13
Chun-Ting Chou, Philips

3. A2: Distributed solutions for SOP
March, 2006
A2: Distributed solutions for SOP
No parent/child/neighbor relationship (distributed, peer-to-peer solutions for SOP)
A’s Superframe
Source: Michael Sim’s presentation
B’s Superframe A A B B C
Alignment
C’s Superframe A B C
“beacon period”
Chun-Ting Chou, Philips

4. A3: Alignment of superframes
March, 2006
A3: Alignment of superframes
“Protection” via CTA is based on superframes are aligned & synchronized
Alignment
Medium slot boundary or superframe start time
Synchronization
distributed nature of both solutions
clock drifting
Chun-Ting Chou, Philips

5. Issues being addressed
March, 2006
Issues being addressed
Alignment
Where to align? (both solutions have pros and cons)
What to consider? (complexity, power consumption, efficiency)
Synchronization
Support of CAP
Mandatory or optional?
How?
Chun-Ting Chou, Philips