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: [TG3a Comparison Discussion Outline] Date Submitted: [13 May 2003 ] Source: [John R. Barr, Gregg Rasor, Jim Allen] Company [Motorola, Motorola, Appairent] Address [1303 E. Algonquin Road, Schaumburg, IL 60196/USA] Voice:[(837) 576-8706], FAX: [(847) 576-6758], E-Mail:[John.Barr@Motorola.com, Gregg.Rasor@Motorola.com, James.D.Allen@Appairent.com] Re: [] Abstract: [Proposed TG3a Comparison Criteria Outline] Purpose: [Consider for use as an outline for TG3a comparison discussions.] 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. John Barr/Gregg Rasor, Motorola, Jim Allen, Appairent

2. Proposed Discussion Outline for TG3a PHY Q&A Session John Barr, Gregg Rasor, Jim Allen John Barr/Gregg Rasor, Motorola, Jim Allen, Appairent

3. Q&A Outline • Address key criteria in sequence: • Range, multiple piconet support, complexity, power, etc. • Establish terminology for comparison for each topic. • Open up to random questions after key criteria covered. John Barr/Gregg Rasor, Motorola, Jim Allen, Appairent

4. Consistent Comparison Information • It would help voters to easily see how proposals compare • Based on Criteria document (03/031r9) • Range, Implementation complexity, Multiple Piconet Support, Regulatory Approval, Etc. • Propose a subcommittee to prepare a comparison matrix for presentation at the beginning of the July meeting. • Process is to use conference calls or set up an ad hoc for presenters to contribute to the summary matrix. John Barr/Gregg Rasor, Motorola, Jim Allen, Appairent

5. Common Issues • Patent Policy • Regulatory Approval • Use of IEEE 802.15.3 MAC John Barr/Gregg Rasor, Motorola, Jim Allen, Appairent

6. Patent Policy • All proposers agree to adhere to the IEEE Patent Policy: • The Patent Holder is prepared to grant a license to an unrestricted number of applicants on a worldwide, non-discriminatory basis and on reasonable terms and conditions to comply with the [Proposed] IEEE Standard. • The Patent Holder is prepared to grant a free license to an unrestricted number of applicants on a worldwide, non-discriminatory basis to comply with the [Proposed] IEEE Standard. John Barr/Gregg Rasor, Motorola, Jim Allen, Appairent

7. Regulatory Approval • All proposals adhere to the current FCC rules regarding operation of UWB systems between 3.1 and 10.6 GHz. • Most proposals also have provisions for modifying their spectrum usage to account for worldwide regulatory rules still being developed in Europe and Asia. John Barr/Gregg Rasor, Motorola, Jim Allen, Appairent

8. Use of the 802.15.3 MAC • All proposals assume that the 802.15.3 MAC will be used. • Some proposals required no changes • Some proposals require specific PHY support modifications • Additional MAC changes not required to support a particular PHY should be addressed as a separate 802.15.3 addendum. John Barr/Gregg Rasor, Motorola, Jim Allen, Appairent

9. PHY Comparison Topics - 1 • Unit Manufacturing Cost/Complexity • Signal Robustness • Interference and Susceptibility, Coexistence • Technical Feasibility • Manufacturability, Time to Market, Regulatory Impact • Scalability • Location Awareness John Barr/Gregg Rasor, Motorola, Jim Allen, Appairent

10. PHY Comparison Topics - 2 • Required MAC Enhancements • Size and Form Factor • Payload bit rate and data throughput • Payload bit rate, packet overhead, PHY-SAP throughput • Simultaneously Operating Piconets • Signal Acquisition • System Performance • Link Budget John Barr/Gregg Rasor, Motorola, Jim Allen, Appairent

11. PHY Comparison Topics - 3 • Sensitivity • Power Management Modes • Power Consumption • Antenna Practicality John Barr/Gregg Rasor, Motorola, Jim Allen, Appairent

12. Q&A Topics • Signal Robustness • System Performance • Link Budget • Simultaneously Operating Piconets • Payload bit rate and data throughput • Scalability • Unit Manufacturing Cost/Complexity • Power Consumption John Barr/Gregg Rasor, Motorola, Jim Allen, Appairent

13. Signal Robustness • Maximum PER for specified packet length • Receiver Sensitivity in AWGN Environment • 110, 200 and (optional) 480 Mbps rates • Minimum required receiver sensitivity for PER of less than 8% of 1024 byte packets over free space distances of 10, 4 and presenter specified distance. John Barr/Gregg Rasor, Motorola, Jim Allen, Appairent

14. System Performance • Multipath Performance • Range: PER and acquisition performance as a function of distance John Barr/Gregg Rasor, Motorola, Jim Allen, Appairent

15. Link Budget • Link Margin (M = PR - PN – S - I) • PR – Rx Power • PN – Average noise power per bit • S – Minimum Eb/ N0 • I – Implementation Loss • Proposed Minimum Rx Sensitivity Level • 110, 200 and Optional 480 Mbps John Barr/Gregg Rasor, Motorola, Jim Allen, Appairent

16. Simultaneously Operating Piconets • PHY should operate in close proximity of multiple uncoordinated piconets, at specific bit and error rates. • What are the values of dint that cause the PER to degrade to a specific level. • Uncoordinated Interfering Transmitter Separation Distance • Values for CM1-5 and 110 and 200 Mbps John Barr/Gregg Rasor, Motorola, Jim Allen, Appairent

17. Payload bit rate and Data Throughput • Payload bit rate • Transmission rates for frames • Packet overhead • T_PA_INITIAL, T_PHYHDR, T_MIFS, T_PA_CONT • PHY-SAP throughput • Bit rate at which a series of 5 MPDUs are transferred from the MAC to the PHY (NO-ACK) • Single and multiple frame rates John Barr/Gregg Rasor, Motorola, Jim Allen, Appairent

18. Scalability • Scalability refers to the ability to adjust important parameters • Power Consumption • Payload bit rate and data throughput • Channelization (physical or coding) • Complexity • Range • Frequencies of operations • Occupied bandwidth of operation John Barr/Gregg Rasor, Motorola, Jim Allen, Appairent

19. Unit Manufacturing Cost/Complexity • Complexity estimates should be provided in terms of both analog and digital die size estimates, semiconductor processes, specified year for process technologies, gate count estimates, and major external components. • Similar considerations should be made with regard to MAC enhancements. • Reasonable and conservative values should be given. • Relative comparisons to existing technologies are acceptable. John Barr/Gregg Rasor, Motorola, Jim Allen, Appairent

20. Power Consumption • Power consumption is defined as the total average power required by the proposed system to operate in transmit, receive, clear channel assessment, or power saving modes. • Normalize to common semiconductor implementation process? John Barr/Gregg Rasor, Motorola, Jim Allen, Appairent

21. Technical Feasibility • Manufacturability • Time to Market • Regulatory Impact John Barr/Gregg Rasor, Motorola, Jim Allen, Appairent

22. Location Awareness John Barr/Gregg Rasor, Motorola, Jim Allen, Appairent

23. Required MAC Enhancements John Barr/Gregg Rasor, Motorola, Jim Allen, Appairent

24. Size and Form Factor John Barr/Gregg Rasor, Motorola, Jim Allen, Appairent

25. Signal Acquisition John Barr/Gregg Rasor, Motorola, Jim Allen, Appairent

26. Sensitivity John Barr/Gregg Rasor, Motorola, Jim Allen, Appairent

27. Power Management Modes John Barr/Gregg Rasor, Motorola, Jim Allen, Appairent

28. Antenna Practicality John Barr/Gregg Rasor, Motorola, Jim Allen, Appairent