1. doc.: IEEE 802.19-05/0022r0 Submission July 2005 Steve Shellhammer, Qualcomm Inc.Slide 1 Discussion on Contention-based Protocol (CBP) Study Group Notice: This document has been prepared to assist IEEE 802.19. 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 grants a free, irrevocable license to the IEEE to incorporate material contained in this contribution, and any modifications thereof, in the creation of an IEEE Standards publication; to copyright in the IEEE’s name any IEEE Standards publication even though it may include portions of this contribution; and at the IEEE’s sole discretion to permit others to reproduce in whole or in part the resulting IEEE Standards publication. The contributor also acknowledges and accepts that this contribution may be made public by IEEE 802.19. Patent Policy and Procedures: The contributor is familiar with the IEEE 802 Patent Policy and Procedures, including the statement "IEEE standards may include the known use of patent(s), including patent applications, provided the IEEE receives assurance from the patent holder or applicant with respect to patents essential for compliance with both mandatory and optional portions of the standard." Early disclosure to the TAG of patent information that might be relevant to the standard is essential to reduce the possibility for delays in the development process and increase the likelihood that the draft publication will be approved for publication. Please notify the Chair as early as possible, in written or electronic form, if patented technology (or technology under patent application) might be incorporated into a draft standard being developed within the IEEE 802.19 TAG. If you have questions, contact the IEEE Patent Committee Administrator at.http:// ieee802.org/guides/bylaws/sb-bylaws.pdfpatcom@ieee.org Date: 2005-07-18 Authors:

2. doc.: IEEE 802.19-05/0022r0 Submission July 2005 Steve Shellhammer, Qualcomm Inc.Slide 2 Background The FCC has issued a Report and Order on the 3650 – 3700 MHz band [1] The R&O requires that operation in the band requires the use of a contention based protocol IEEE 802.11 has a study group on this topic. It is an 802.11 study group, but is open to all other WG/TAG There are currently several petitions for reconsideration to the FCC. These will not be addressed before this week. Hence the SG may not submit the PAR to the EC until next plenary, depending actions of the FCC

3. doc.: IEEE 802.19-05/0022r0 Submission July 2005 Steve Shellhammer, Qualcomm Inc.Slide 3 CBP SG PAR The study group decided to write a PAR for an 802.11 amendment. 4. PAR Title –Amendment to Standard [FOR] Information Technology-Telecommunications and Information Exchange between systems-Local and Metropolitan networks-Specific requirements-Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications: 3650-3700 MHz Operation in USA

4. doc.: IEEE 802.19-05/0022r0 Submission July 2005 Steve Shellhammer, Qualcomm Inc.Slide 4 CBP SG PAR 13. Project Scope –Application of 802.11 based systems to the 3650-3700 MHz band in the USA.

5. doc.: IEEE 802.19-05/0022r0 Submission July 2005 Steve Shellhammer, Qualcomm Inc.Slide 5 CBP SG PAR 14. Project Purpose The purpose of this project is to standardise the mechanisms required to allow shared operation in the 3650-3700 MHz band in the USA. Likely required mechanisms include: –Specification of new regulatory classes (extending 802.11j) –Sensing of other transmitters (extending 802.11a) –Transmit Power Control (extending 802.11h) –Dynamic Frequency Selection (extending 802.11h)

6. doc.: IEEE 802.19-05/0022r0 Submission July 2005 Steve Shellhammer, Qualcomm Inc.Slide 6 CBP SG PAR 15. Reason for the Project –The existing 802.11 standard and the proposed amendments from currently operating 802.11 TGs do not address in detail the rules specified by the FCC for operation in the 3650-3700 MHz band in the USA

7. doc.: IEEE 802.19-05/0022r0 Submission July 2005 Steve Shellhammer, Qualcomm Inc.Slide 7 CBP SG PAR 18. Additional Explanatory Notes –Item 15 – The project will define a protocol that consists of procedures for initiating new transmissions, procedures for determining the state of the channel (available or unavailable), and procedures for managing retransmissions in the event of a busy channel. IEEE 802 standards have not been designed to accommodate operation in ‘lightly-licensed’ bands (i.e. non- exclusively licensed, without guarantees about interference), and the 5 GHz concepts of ‘Dynamic Frequency Selection’ and 'Transmit Power Control' should be generalized beyond sharing with radar systems. This proposed project work on a ‘Contention- Based Protocol’ is likely to be suitable for use in ‘lightly-licensed’ bands in other regulatory domains.

8. doc.: IEEE 802.19-05/0022r0 Submission July 2005 Steve Shellhammer, Qualcomm Inc.Slide 8 CBP SG 5C The SG did decided (after some encouragement from the 802.19 TAG chair) to include in the 5C that the TG would produce a CA doc The 5C includes the statement – Task Group will create a CA document as part of the balloting process.

9. doc.: IEEE 802.19-05/0022r0 Submission July 2005 Steve Shellhammer, Qualcomm Inc.Slide 9 Discussion on CBP It is my understanding that the SG plans to have a contention-based protocol that enables 802.11 stations to share the spectrum It is my understanding that the SG does not plan to develop a contention-based protocol that enables 802.11 and other 802 wireless stations to share the band. –The is a possible exception to this statement in that the PAR refers to TCP and DFS

10. doc.: IEEE 802.19-05/0022r0 Submission July 2005 Steve Shellhammer, Qualcomm Inc.Slide 10 Question to the TAG Should we encourage CBP SG to develop a spectrum sharing technique to enable sharing of all wireless standards intended to operate in the band?

11. doc.: IEEE 802.19-05/0022r0 Submission July 2005 Steve Shellhammer, Qualcomm Inc.Slide 11 References 1.FCC Report and Order 05-56, Wireless Operation in the 3650-3700 MHz, March 16, 2005 2.Peter Ecclesine, CBP-SG Draft PAR, IEEE 802.11- 05/565r1, June 2005 3.Peter Ecclesine, CBP-SG Five Criteria Draft, IEEE 802.11-05/351r4, June 2005