1. 1 May 2009 Doc: IEEE802.15-09-0303-00-004g Submission Scott Weikel, Elster Electricty Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [DSSS Neighborhood Area Network Communications Proposal] Date Submitted: [May 1, 2009] Source: [Scott Weikel] Company [Elster Electricity] Address:[208 South Rogers Lane; Raleigh, NC 27610] Voice:[919-212-4866] E-Mail:[scott.j.weikel@us.elster.com] Re: [802.15.TG4g PHY Layer Proposal] Abstract:Proposal for DSSS compatible changes for 802.15.4g Purpose:Contribution to IEEE 802.15.4g 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.

2. 2 Scott Weikel, Elster Electricty Doc: IEEE802.15-09-0303-00-004g DSSS Neighborhood Area Network Communications Proposal May 1, 2009 IEEE 802.15.4g

3. 3 May 2009 Doc: IEEE802.15-09-0303-00-004g Submission Scott Weikel, Elster Electricty Define an alternate PHY layer for 802.15.4 with only those MAC modifications needed to support the PHY layer implementation Support operation in any of the regionally available license exempt frequency bands, such as 700MHz to 1GHz, and the 2.4 GHz band Data rate of at least 40 kbps but not more than 1000 kbps Achieve the optimal energy efficient link margin given the environmental conditions encountered in Smart Metering deployments Principally outdoor communications PHY frame sizes up to a minimum of 1500 octets Simultaneous operation for at least 3 co-located orthogonal networks Connectivity to at least one thousand direct neighbors characteristic of dense urban deployments Provide mechanisms that enable coexistence with other systems in the same band(s) including IEEE 802.11, 802.15 and 802.16 systems Scope/Goals of TG4g

4. 4 May 2009 Doc: IEEE802.15-09-0303-00-004g Submission Scott Weikel, Elster Electricty Define an alternate PHY layer for 802.15.4 with only those MAC modifications needed to support the PHY layer implementation Overview of Proposed PHY Layer Only make changes to 802.15.4 that are necessary to address PAR Use same frequency bands Use existing modulations Use existing data rates Proposal to Address Goals of TG4g

5. 5 May 2009 Doc: IEEE802.15-09-0303-00-004g Submission Scott Weikel, Elster Electricty Support operation in any of the regionally available license exempt frequency bands, such as 700MHz to 1GHz, and the 2.4 GHz band No changes to 802.15.4 needed 802.15.4 already supports the following bands 868MHz, 917MHz 2450 MHz Proposal to Address Goals of TG4g

6. 6 May 2009 Doc: IEEE802.15-09-0303-00-004g Submission Scott Weikel, Elster Electricty Data rate of at least 40 kbps but not more than 1000 kbps No changes to 802.15.4 needed 802.15.4 already supports 20kbps 40kbps 100kbps 250kbps Proposal to Address Goals of TG4g

7. 7 May 2009 Doc: IEEE802.15-09-0303-00-004g Submission Scott Weikel, Elster Electricty Achieve the optimal energy efficient link margin given the environmental conditions encountered in Smart Metering deployments No changes to 802.15.4 needed Proposal to Address Goals of TG4g

8. 8 May 2009 Doc: IEEE802.15-09-0303-00-004g Submission Scott Weikel, Elster Electricty Principally outdoor communications No changes to 802.15.4 needed Proposal to Address Goals of TG4g

9. 9 May 2009 Doc: IEEE802.15-09-0303-00-004g Submission Scott Weikel, Elster Electricty Proposal to Address Goals of TG4g PHY frame sizes up to a minimum of 1500 octets Changes are needed to 802.15.4 needed Change aMaxPHYPacketSize to 2047 octets Change PHY Header to two octets to allow larger payload Could expand Frame Check Sequence

10. 10 May 2009 Doc: IEEE802.15-09-0303-00-004g Submission Scott Weikel, Elster Electricty Simultaneous operation for at least 3 co-located orthogonal networks No changes to 802.15.4 needed 27 channels are specified now 10 channels are specified in the 917MHz band Proposal to Address Goals of TG4g

11. 11 May 2009 Doc: IEEE802.15-09-0303-00-004g Submission Scott Weikel, Elster Electricty Connectivity to at least one thousand direct neighbors characteristic of dense urban deployments No changes to 802.15.4 needed Proposal to Address Goals of TG4g

12. 12 May 2009 Doc: IEEE802.15-09-0303-00-004g Submission Scott Weikel, Elster Electricty Provide mechanisms that enable coexistence with other systems in the same band(s) including IEEE 801.11, 802.15, and 802.16 No changes to 802.15.4 needed Proposal to Address Goals of TG4g

13. 13 May 2009 Doc: IEEE802.15-09-0303-00-004g Submission Scott Weikel, Elster Electricty Conclusions IEEE 802.15.4 is widely used in many successful applications 802.15.4 is interoperable (within a frequency band) PAR for 4g amendments listed only a few improvements needed

14. 14 Scott Weikel, Elster Electricty Doc: IEEE802.15-09-0303-00-004g Thank you!!