19 November 2009 Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: OFDM Topics Date Submitted: 19 November 2009 Source: Emmanuel Monnerie Company Landis+Gyr Address 30000 Mill Creek Avenue, Alpharetta, GA 30022 Voice: +1 678 641 1986, E-Mail: emmanuel . monnerie @ landisgyr.com Re: Abstract: OFDM subgroup meeting notes Purpose: 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. Emmanuel Monnerie, Landis+Gyr

19 November 2009 OFDM Topics 2009/11/19 Emmanuel Monnerie, Landis+Gyr

Participants Steve Shearer (Ind.) 19 November 2009 Participants Steve Shearer (Ind.) Anuj Batra, Tim Schmidl (Texas Instruments) Kuor-Hsin Chang (Elster) Sangsung Choi (EPRI) Baskar Banerjee, Jeritt Kent, Chuck Millet (Analog Devices) John Geiger, Daniel Sexton (GE) Emmanuel Monnerie, Dave Olson, Ruben Salazar, Nick West (Landis+Gyr) Emmanuel Monnerie, Landis+Gyr

Action Items Harmonization with FSK Device Classes (postponed) 19 November 2009 Action Items Harmonization with FSK Channel Map Data rates Clocks/Sampling Frequencies Device Classes (postponed) Comments for Doc # 738 (this afternoon ?) Next Meetings/Conference Calls with FSK Simplification of the proposal Preparation for LA Editing process Use Cases Emmanuel Monnerie, Landis+Gyr

Harmonization with FSK 19 November 2009 Harmonization with FSK Hopping mechanism Need to have a synchronized option with FSK’s hopping sequence Need to consider shorter packets provided by higher data rate MCS’s Need to consider multiple packets (data + ack) within the same channel This will be largely defined in the MAC discussions Emmanuel Monnerie, Landis+Gyr

Harmonization with FSK 19 November 2009 Harmonization with FSK Data rates Tone spacing of 10.416kHz (?, to be checked against crystal frequencies). Check Japanese Regulation for Option 2 Small advantage in matching (Bridge, application,…) Emmanuel Monnerie, Landis+Gyr

Harmonization with FSK 19 November 2009 Harmonization with FSK Channel Map/Bandwidth Significant advantage in matching with FSK Match band coverage + TVWS Need to time synchronize More a MAC layer issue Emmanuel Monnerie, Landis+Gyr

Simplification of the proposal 19 November 2009 Simplification of the proposal MCS levels corresponding to 3dB steps Option 5: useful for European regulation (doc REC 70-03, 2 June 2009) Update number of active tones (see 738) Added 50 kbps in option 2 Keeping data rates above 50 kbps Emmanuel Monnerie, Landis+Gyr

Meetings/Document Next Meetings/Conference Calls with FSK 19 November 2009 Meetings/Document Next Meetings/Conference Calls with FSK Thursday 8:00PM Eastern (except next week) Editing process January 4th for contributions to the TE Submit proposals and suggestions by December 10th to the OFDM subgroup Emmanuel Monnerie, Landis+Gyr

19 November 2009 Use cases Calculate effective throughput (preamble length, packet length versus data/payload size, MAC control,…) Emmanuel Monnerie, Landis+Gyr