1. Submission IEEE P802.15-09-0479-01-004g Atmel, ADI, Silver Spring Networks Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [Update to NBFH PHY Proposal for 802.15.4g, part of FSK/GFSK CPP] Date Submitted: [July 2009] Source (in no particular order): [Michael Schmidt, Dietmar Eggert]Company [Atmel] [Jeritt Kent] Company [Analog Devices] [Cristina Seibert, George Flammer]Company [Silver Spring Networks] Address [] Voice [] E-Mail: [ gflammer @ SilverSpringNet.com & cseibert @ silverspringnet.com] Re: [] Abstract:Update to Narrow Band Frequency Hopping PHY for 802.15.4g, supporting the FSK/GFSK Common Platform Proposal Purpose:Update 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. Slide 1 July 2009

2. Submission IEEE P802.15-09-0479-01-004g Atmel, ADI, Silver Spring NetworksSlide 2 Overview Proposal Summary and Update NIST Roadmap FSK/GFSK Common Platform Proposal (CPP) –Rationale –Participation –Technical Summary Compatibility with other merged proposals –OFDM-based –DSSS-based July 2009

3. Submission IEEE P802.15-09-0479-01-004g Atmel, ADI, Silver Spring NetworksSlide 3 US emphasis 300 kHz channel spacing MFSK (vs. GFSK) Support for larger packet sizes ( > 1500B ) 32 bit CRC 100 kbps data rate July 2009 PHY Proposal Highlights

4. Submission IEEE P802.15-09-0479-01-004g PHY Proposal Highlights Atmel, ADI, Silver Spring NetworksSlide 4 ParameterNBFH-PHY Operating bandsub-GHz (e.g. 902 MHz), 2.4GHz Channel BW< 250 kHz @ 20 dB down from peak, others optional Channel spacing300kHz, others (100/200/400) optional ModulationMFSK required, GFSK,GFSK optional FECNot required (optional) Frequency HoppingMAC controlled PHY frame structure: MAX payload2047 octets (2 11 -1) IPv6 – RFC2460 – 1280B Ethernet v2 – RFC 1191 – 1500B SHRAt least 32 bits preamble + 16 bit SFD CRCCRC-32 July 2009

5. Submission IEEE P802.15-09-0479-01-004g PHY Proposal Highlights Atmel, ADI, Silver Spring NetworksSlide 5 ParameterNBFH-PHY (US) Operating bandssub-GHz (e.g. 902 MHz), 2.4GHz Channel spacingmultiple of 100 kHz ModulationGFSK required, MFSK optional FECNot required (optional) Frequency HoppingSupported - MAC controlled PHY frame structure: MAX payload2047 octets (2 11 -1) IPv6 – RFC2460 – 1280B Ethernet v2 – RFC 1191 – 1500B SHRAt least 32 bits preamble + 16 bit SFD CRCCRC-32 ( IEEE 802.3 ) July 2009

6. Submission IEEE P802.15-09-0479-01-004g PHY Proposal Highlights (Cont’d) Atmel, ADI, Silver Spring NetworksSlide 6 ParameterNBFH-PHY Data WhiteningOptional: 8-bit LFSR, variable seed Data rate(s)100 kbps, others optional Symbol / chip rate100 ksps, others optional Transmit PowerAs allowed by regulatory regimes PSDAs allowed by regulatory regimes TX Power ControlYes Chan availability, blacklistingMAC or higher layer defined Link QualityRSSI Reliability enhancing features/methods Hopping, CRC-32, scrambling Co-existence featuresChannel diversity, LDC, TPC Co-located network supportChannel diversity, LDC, TPC July 2009

7. Submission IEEE P802.15-09-0479-01-004g 09 July 2009 B. Rolfe, C. Powell, et al.Slide 7 NIST ROADMAP Quotes from the latest NIST report, June 2009: 1)Everything already on the grid is legacy, and must be supported for years. 2)The most significant challenge of interoperability is, and will continue to be, interoperability with the installed legacy systems, while addressing interfaces between new and yet to be established devices, systems and domains constituting the Smart Grid. Hence the necessity of an all-inclusive common platform Globally, the same objectives apply (e.g., UTC request for harmonization with Canadian 1800 MHz allocation)

8. Submission IEEE P802.15-09-0479-01-004g Atmel, ADI, Silver Spring NetworksSlide 8 Common Platform Proposal CPP is an on-going effort, for developing a cohesive workable Common Platform Proposal Goal is a sensible and sound standard for SUN –Legacy devices (minimal orphans) –Future evolution (data rates up through 400kbps) –Low energy devices (avoid energy inelegance) –Operation in different frequency bands worldwide CPP sub group chaired by Clint Powell and Ben Rolfe was created at the suggestion of TG4g Chairman to help merge the various FSK/GFSK Proposals July 2009

9. Submission IEEE P802.15-09-0479-01-004g Atmel, ADI, Silver Spring NetworksSlide 9 Participation in CPP IEEE-SA is an open, consensus driven standards organization, which encourages inclusion Most parties have been actively participating in the CPP effort; most PHY parameters are well known and in use worldwide CPP is an all-inclusive effort. Much work needs to be done. We feel participation in the combined efforts of the CPP is vital to 802.15.4g so the global smart-grid initiatives can be supported in an efficient fashion July 2009

10. Submission IEEE P802.15-09-0479-01-004g Atmel, ADI, Silver Spring NetworksSlide 10 FG-CPP Summary Support multiple bands, regions –Flexible and adaptable to present & future (band agnostic, non-contiguous bands,…) –Support bands in US, Europe, UK, Korea, Japan, China –Adaptable to other bands as they may become available Multiple data rates –50 (optional), 100 (remains prime - worldwide), 200 and 400 kbps (optional). –Increments of 50? –Others possible (20, 40, …) TPC to support wider power ranges –Some pending actions may allow more power FEC: recommend 3 options –Simple Convolution –RS or BCH type block code (pick one) –None Scrambler –8-bit, variable seed, that can be disabled – whitens and provides long SFD FSK and GFSK –BT (generally 0.5) and h (0.5?, 1.0?) appropriate to the band requirements for each band Low Energy support (scrambler can extend SFD – dramatically reducing ‘falsing’) Mechanism for supporting multiple frame formats –Flexibility helps with legacy and extensible for future July 2009

11. Submission IEEE P802.15-09-0479-01-004g Atmel, ADI, Silver Spring NetworksSlide 11 Rationale for CPP Inclusive of all FSK and GFSK based proposals Includes flexibility to deal with real-world –Based on working deployments from multiple vendors –Enables support for Legacy Devices –Support for Low Energy Devices –Support for Band Adaptation Address goals of NIST roadmap and international needs –Flexible and extensible: Integration of legacy systems and growth for future needs DSSS Compatibility OFDM Compatibility July 2009

12. Submission IEEE P802.15-09-0479-01-004g Atmel, ADI, Silver Spring NetworksSlide 12 Compatibility OFDM Compatibility DSSS Compatibility July 2009

13. Submission IEEE P802.15-09-0479-01-004g Atmel, ADI, Silver Spring NetworksSlide 13 Conclusions Drive toward multi-PHY amendment - The Tri-PHY Proposal consistent with scope of approved SUN PAR –Support millions of users at low data rates –Robust and available –Low cost and ubiquitous –Operation in unlicensed spectrum –Support for both low-energy and line-powered devices –Support for operation in other available frequency bands. Applications supported by this proposal are consistent with those proposed by utilities and manufacturers during PAR approval process and in tutorials July 2009