1. Title: LE TG Closing Report for Session #62 Document Number: 802.16h-09/0015 Date Submitted: July 16, 2009 Source: Chair of LE TG: Mariana GoldhamerVoice:+972 3 645 6241 mariana.goldhamer@alvarion.commariana.goldhamer@alvarion.com ALVARION 21a HaBarzel Street, Tel Aviv, Israel Venue: Session #62, 13-16 July, 2009 Base Document: Purpose: Notice This document does not represent the agreed views of the IEEE 802.16 Working Group or any of its subgroups. It represents only the views of the participants listed in the “Source(s)” field above. It is offered as a basis for discussion. It is not binding on the contributor(s), who 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 802.16. Patent Policy: The contributor is familiar with the IEEE-SA Patent Policy and Procedures: and.http://standards.ieee.org/guides/bylaws/sect6- 7.html#6http://standards.ieee.org/guides/opman/sect6.html#6.3 Further information is located at and.http://standards.ieee.org/board/pat/pat-material.htmlhttp://standards.ieee.org/board/pat

2. LE Task Group activity –WG Review - Comment resolution Data-base 802.16-09/0031r2 74 comments –All the comments are resolved Agreed: 42 Principle: 26 Disagree: 6

3. Additional activities of the week Review of the outstanding “Disapprove” comments from all the SB rounds –E-mails were sent to Disapprove voters Presentation of the contribution IEEE C802.16h-09/0017r1 on Tues evening –Attendance: 12 people

4. Sponsor Ballot status Approval conditions were met –100 Approve; approval rate 92.6% –8 Disapprove So far 2 emails with commitments to change Disapprove votes This will bring the approval ratio at 94.4% –5 Abstain # of Balloters Response Rate % Approval Rate % Negative Rate % Abstain Rate % 13484.3%92.6%7.4%4.4%

5. Outstanding disapprove comments First Ballot –BALLOT OPENED: 6-Aug-2008 BALLOT CLOSED: 5-Sep-2008 –Resulting data-base: IEEE 80216-08/047r3.zip 23 outstanding comments First Recirc. –BALLOT OPENED: 4-Dec-2008 BALLOT CLOSED: 25-Dec-2008 –Resulting data-base: IEEE 80216-08/065r5.zip 3 outstanding comments Second Recirc. –BALLOT OPENNED: 10-Apr-2009 –BALLOT CLOSED: 25-Apr-2009 –Resulting data-base: IEEE 802.16-09/0031r2 13 outstanding comments

6. SB comment statistics Clear indication of convergence towards finalization First Ballot –IEEE 802.16-08/047r3IEEE 802.16-08/047r3 860 comments 523 technical First Recirc. –IEEE 802.16-08/065r5IEEE 802.16-08/065r5 –IEEE 802.16-09/0012r1IEEE 802.16-09/0012r1 395 comments 293 technical Second Recirc. IEEE 802.16-09/0031r1 74 comments 29 technical Third Recirc. –Expectation: very few or no comments

7. Industry needs 802.16h soon! Regulations: –US: TVWS (free TV channels), 3.65GHz –Europe: 2.4GHz, 5GHz High industry interest President Obama stimulus funds –Rural Broadband –Smart Grids Social impact: Internet access for rural areas Complementary to Licensed Bands usage of 802.16 Key feature for increasing the spectrum amount Adds cost-free spectrum for 802.16 operation Improved coexistence with other 802-based systems Satisfying NIST concerns for interference mitigation

8. Conditional EC Approval Very high approval ratio –92.6% Reduced number of comments in last recirculation Outstanding disapprove votes –See document …. –After excluding those who sent e-mails regarding change of vote or satisfied comments 020Wang, Lei 0011Ruck, Herbert 010Piggin, Paul 8019Murias, Ronald 11 (1) 1 + 2 (1) Marks, Roger 005Lubar, Daniel 003Labs, Jonathan 400Chindapol, Aik Notes 802.16- 09/0031r1 802.16-08/065r5802.16- 08/047r3 (1) 100Turner, Michelle Note 1: e-mail was received about changing the vote to “Approve”

9. Motion 1 To authorize the LE TG Editor to create the WG draft IEEE P802.16h/D10 based on IEEE P802.16h/D9 and the comment resolutions recorded in data-base IEEE 802.16-09/0031r2 and to initiate a Sponsor Recirculation Ballot. Task group vote: 5:0:0

10. Motion 2 To ask the WG to authorize the 802.16 WG Chair to request Conditional Approval from the IEEE 802 Executive Committee to forward the IEEE P802.16h Draft to RevCom TG Vote: 5:0:0 Note: Slides for EC: IEEE 802.16-09/0039

11. Back-up slides See also IEEE 802.16h-09/0017r1

12. P802.16h technology features Coexistence between 802.16-based systems Sharing of a frequency channel between co- located operators –Coexistence Frame (CX-Frame) –Each operator may use different channel widths different PHY profiles of 802.16 different cell sizes (macro, micro, nano cells) No inter-operator messages needed for basic operation

13. P802.16h technology features for improved coexistence with PRIMARY users SSU (Specific Spectrum Users) –Coexistence Control Channel Synchronized silence intervals enabling the cognitive detection –Examples: TV Transmitters, Wireless Mics, etc. –FCC regulations for LE TV bands: -114dBm detection levels require absolute silence NON-SSU –CXCBP - Contention-based protocol Improved coexistence with 802.11, other bursty systems No inter-operator messages needed

14. Communication for improved inter-system coexistence Inter-system messages –Spread information on the BS/SS radio power, antennae, location, Coexistence Frame usage, etc. –Control of interference between operators –Optimization of spectrum usage –Systems may belong to different operators Inter-system protocols –Coexistence negotiation protocol (Token Protocol, developed within the European E2R II research project) General spectrum controller is supported

15. Examples where 802.16h is needed Bands below 4GHz TV White Spaces (aprox. 300MHz between 52…692MHz) –Data-base approach: resolves the Broadcast TV detection –Still required detection of wireless mics, etc. -114dBm power levels: detection is possible only with sync. silence 802.16h Coexistence Control Channel enable the operation in TVWS 2.4GHz –Reduced interference to 2.3GHz, 2.5GHz licensed bands –Europe: Requirements for Medium Access Protocol (EN 300328 V1.7.1) for spectrum sharing with other devices 3.65GHz – 3.70GHz, US –Contention-based protocol is required by FCC in the upper 25MHz –Coexistence Assurance with 802.11y was done in 802.19 Coexistence TAG 5.4-5.725GHz –Europe: Requirements for Medium Access Protocol ((EN 301 893 v.1.5.1) for spectrum sharing with other devices