1. Purpose: [To encourage discussion.]
Project: IEEE P Working Group for Wireless Personal Area Networks (WPANs)
Submission Title: [Respond to Call for Intent in IEEE c Study Group]
Date Submitted: [May 2007]
Source: [Clint Powell, Kuor-Hsin Chang, Phil Beecher, Henk de Ruijter, Michael Schmidt, Frank Poegel] Company: [Freescale Semiconductor, Integration Associates, Atmel]
Address: [2100 E. Elliot Rd, MD: EL542, Tempe, AZ 85284, USA; West Street, Reigate, Surrey RH2 9BS, United Kingdom; 110 Pioneer Way, Unit L., Mountain View, CA 94041, Königsbrücker Strasse 61, Dresden, Germany]
Voice:[ , , , x155, , ],
Re: [ IEEE c ]
Abstract: [Response to 4c Study Group call for intent to share our vision about what could be a successful c standard.]
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
Clint Powell, Kuor-Hsin Chang, Phil Beecher, Henk de Ruijter,
Michael Schmidt, Frank Poegel (Freescale, Integration, Atmel)

2. Chinese Regulations Related to LR WPAN
The Radio Management Bureau (the regulatory body for radio usage in China) of China Information Department approved the following frequency bands and TX power limitation for the operation of WPAN equipment
430 ~ 432 MHz, 433 ~ MHz
Transmitting power limit: 10mW (e.i.r.p)
Occupied bandwidth: ≤ 400 kHz
779 ~ 787 MHz
No requirements for occupied bandwidth
The Radio Management Bureau of China Information Department does not object the ISM frequency band for the operation of WPAN equipment
2400 ~ MHz
The frequency offset allowed is 75KHz which is equivalent to 31.25ppm (for 2.4GHz)
Submission
Clint Powell, Kuor-Hsin Chang, Phil Beecher, Henk de Ruijter,
Michael Schmidt, Frank Poegel (Freescale, Integration, Atmel)

3. PHY for 779~787MHz Band 8MHz total bandwidth available
In spirit, reuse as much Optional 902~928MHz band PHY as possible
Chip rate: 1000 kchip/sec
Modulation: O-QPSK
Data rate: 250 kb/sec
Symbol rate: 62.5 ksymbol/sec
Spreading code: 16-ary quasi-orthogonal
Optional 902~928MHz band PHY reuse could provide 3-4 channels in 8MHz BW (this is yet to be verified)
Submission
Clint Powell, Kuor-Hsin Chang, Phil Beecher, Henk de Ruijter,
Michael Schmidt, Frank Poegel (Freescale, Integration, Atmel)

4. PHY for 779~787MHz band (cont’d.)
Spreading Code Characteristics:
Binary codes
PN Code 1 is the circular shift of PN Code 0 by 2
PN Code 8 is the complex conjugate of PN Code 0
No DC component
Pulse Shaping Filter
Simple, effective pulse shaping to meet the PSD requirements in China
Submission
Clint Powell, Kuor-Hsin Chang, Phil Beecher, Henk de Ruijter,
Michael Schmidt, Frank Poegel (Freescale, Integration, Atmel)

5. MAC for 4c Adopt the PICS of 802.15.4-2006 MAC
Retain the frame structure of
Add MAC changes required to support the 4c PHY
It is recommend that MAC changes which are beyond the scope of this task group should be submitted to WNG for further consideration
Submission
Clint Powell, Kuor-Hsin Chang, Phil Beecher, Henk de Ruijter,
Michael Schmidt, Frank Poegel (Freescale, Integration, Atmel)

6. Advantages of This
Maximizes reuse of the standard and avoids reinventing the wheel.
Utilizes a known/proven/realizable PHY standard/solution.
An IEEE compliant device could be easily modified to comply with Chinese regulatory and provide more available sources for marketplace.
A CWPAN compliant part could be easily incorporate the differences to comply with IEEE and sell to markets outside China.
Optional CWPAN MAC enhancements address the needs of the Chinese market.
Submission
Clint Powell, Kuor-Hsin Chang, Phil Beecher, Henk de Ruijter,
Michael Schmidt, Frank Poegel (Freescale, Integration, Atmel)