Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

1. Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [Multi-band MAC statement] Date Submitted: [12 July, 2004] Source: [Larry Taylor] Company [Staccatto Communications] Address [] Voice:[], FAX: [], E-Mail: [larry.taylor@staccattocommunications.com] Re: [Request for MAC support statements] Abstract: [Provides statement on ability for mb-ofdm proposal to support 15.3 MAC.] 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.

2. MB-OFDM proposal 15.3 MAC spec support • September 2003 • MB-OFDM MAC enhancement summary delivered as part of confirmation no vote response [15-03-0343-01] – see attached. • Key message: transparency to 15.3 MAC for default modes, where value-add enhancements for MB-OFDM band management, etc. to be drafted in detail as part of 15.3a project are optional • Today • There are no changes to the MB-OFDM IEEE 15.3a PHY proposal since Sept. 2003 that would prevent the MB-OFDM PHY proposal from supporting the 15.3 MAC specification

3. Backup slides • Copy of foils from September 2003 MB-OFDM contribution [15-03-0343-01]

4. MAC Enhancements for Multiband OFDMPresenter Larry Taylor(Staccato Communications)

5. MAC Enhancement Outline • Transparency to 15.3 • Value-add enhancements • Band management / frequency agility • Ranging support • MAC Enhancement Conclusions

6. Transparency to 15.3 Overview • Multi-band OFDM PHY has default modes • Band management is part of an optional value-add story • MAC functional behavior can stay the same as before • E.g., rate selection and capability probing mechanics are unchanged

7. Transparency to 15.3 Transmitter rate selection • As per MAC convention, chosen by index • Associated to 4 bits defined in PHY header • Rate is independent of band management!!

8. Transparency to 15.3 Rate capability probing • Uses same rate capability bits as before • Described in 15.3, section 7.4.11 • Proposed rate encoding:

9. Value-add enhancements Band management / frequency agility • Multi-band OFDM inherently suitable for performing controlled frequency agility • Selective usage of bands • Great for “good neighbor” behavior or regulatory configuration • Bands can be punctured to address severe near-far scenarios • Optional enhancements to be developed: • Primitives to support local and remote band assessment on a per band basis (RSSI, LQI) • Primitives to support band usage on a per piconet basis • Primitives to support code puncturing on a per stream basis • Band capability bit definitions for 7.4.11

10. Value-add enhancements MAC support for Ranging • Ranging option requires a new MAC command • Ranging request/response • Includes sequence numbers • New MLME primitives needed to initiate request and obtain response • See ranging summary for more details

11. MAC Enhancement Conclusions • Transparency to 15.3 • Multi-band OFDM PHY default mode requires no new MAC functional behavior • Value-add enhancements (optional) • Band management / frequency agility, and ranging