1. Date Submitted: [Sept. 18, 2006 ]
Project: IEEE P Working Group for Wireless Personal Area Networks (WPANs)
Submission Title: [PHY Difference between CWPAN and IEEE ]
Date Submitted: [Sept. 18, 2006 ]
Source: [Kuor-Hsin Chang, Clint Powell] Company: [Freescale Semiconductor]
Address: [2100 E. Elliot Rd, MD: EL542, Tempe, AZ 85284, USA]
Voice:[ , ],
Re: [ IEEE SG4c ]
Abstract: [Highlight major differences on PHY between IEEE and Chinese WPAN Draft]
Purpose: [To encourage discussion.]
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
Submission
Kuor-Hsin Chang, Clint Powell - Freescale, Inc.

2. PHY Comparison Std. Freq. (MHz) Modulation Pulse Shaping
Sept doc:IEEE XX c
PHY Comparison
Std.
Freq. (MHz)
Modulation
Pulse Shaping
Spreading Codes
Data Rate
(kb/s)
IEEE
868/915
BPSK
(w/ differential encoding)
Raised cosine
(roll-off factor=1)
2 (15-chip) (max. hamming dist.)
20 (868)
40 (915)
868/915 (opt.)
O-QPSK
Half-sine
16 (16-chip)
(circular shift by 2)
100 (868)
250 (915)
CWPAN
314,430,
780
QPSK
(roll-off factor=0.5)
16 (16-chip) phase (circular shift by 1, X(1,-1) decide by PN code)
50 (314, 430)
250 (780)
Submission
Kuor-Hsin Chang, Clint Powell - Freescale, Inc.

3. PHY Comparison (Cont’)
Sept doc:IEEE XX c
PHY Comparison (Cont’)
PSSS option for b is not included
For 2.4GHz, CWPAN is the same as b
Submission
Kuor-Hsin Chang, Clint Powell - Freescale, Inc.