1. IEEE 802.21 MEDIA INDEPENDENT HANDOVER DCN: 21-08-0279-01-0000 Title: 802.11 Liaison Report for 2008/09 Date Submitted: September 10, 2008 Presented at IEEE 802.21 session #28 in Waikoloa, Hawaii, HI, USA on September 10, 2008 Authors or Source(s): Clint Chaplin, 802.11 Liaison (Samsung) Abstract: This document is the liaison report on 802.11

2. IEEE 802.21 presentation release statements This document has been prepared to assist the IEEE 802.21 Working Group. 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. 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 802.21. The contributor is familiar with IEEE patent policy, as stated in Section 6 of the IEEE-SA Standards Board bylaws and in Understanding Patent Issues During IEEE Standards Development http://standards.ieee.org/board/pat/faq.pdf> Section 6 of the IEEE-SA Standards Board bylawshttp://standards.ieee.org/guides/bylaws/sect6-7.html#6 http://standards.ieee.org/board/pat/faq.pdf

3. 802.11mb – New Maintenance group (compilation of all approved amendments) –Currently finishing changes that could not be completed in time for 802.11-2007 –Will continue for next two+ years. 802.11u – Interworking with External Networks –MAC changes to accommodate, among others, 802.21; relies on 11k, 11r; scope agreement with 11v –More notes below. 802.11v – Wireless Network Management –Management protocol additions; AP-AP negotiations; load balancing; access controls –More notes below 802.11w – Protecting Management Frames –Security for management frames, including broadcast frames; relies on 11k, 11r and 11u 802.11z – Direct Link Setup –Enabling Direct Link with legacy APs –More notes below 802.11aa - Video Transport Streaming –Additions to support video –More notes below Very High Throughput SG : 1Gbps successor to 802.11n –More notes below 802.11 Groups Related to 802.21 (many suspects – but narrowing the list)

4. Temp Jon Rosdahl 802.11 TGmb 802.11 Accumulated Maintenance Changes TGmb is requesting Comment/Input on the 802.11- 2007 plus approved RevCom amendments. Input period is from May 2008 until Nov 2008. Presentations of proposed resolutions are expected to be posted to IEEE Mentor server, and notification sent to the 802.11m listserv reflector. Working on modifying the PAR to make it a revision PAR. Still looking for a permanent Chair and Editor

5. Bruce Kraemer 802.11 TGn High Throughput LB134 recirculation WG ballot on IEEE 802.11n D6.0 closed 8/12/2008. Results: 266/27/21 90.78% Working on resolving comments from LB; hoping to go to recirculation WG ballot after this meeting Most contentious issues are still 40MHz channelization, denial of service, and access to MAC enhancements by legacy PHYs

6. Lee Armstrong 802.11 TGp Wireless Access for the Vehicular Environment TGp is resolving comments from LB125. A major breakthrough was reached Monday on a contentious issue, and now comments are being addressed in big blocks. Approximately 80% of the comments have been addressed. The group was trying to go out for recirculation after this meeting, but was unable to. Will try again in November.

7. Donald Eastlake 802.11 TGs Mesh Networking Working on resolving comments from LB126; still hoping to go for a third initial WG ballot after the November meeting. Security, MAC, routing, power save are the most discussed issues; other issues need to be addressed and worked through.

8. Nerraj Sharma 802.11 TGT Wireless Performance IEEE 802 Executive Committee voted to withdraw the PAR for this group. Request is now in front of IEEE SA NesCom

9. Stephen McCann 802.11 TGu InterWorking with External Networks Third initial WG ballot LB 132 on draft 3.0 closed July 12. Results are 113/34/35 76.87% Passed! 944 comments received: 511 technical, 433 editorial Expecting to go out to recirculation WG ballot in September 39 MIH related comments: all have been looked at; 26 accepted, 3 countered, 10 required submissions which have now been developed and submitted

10. Dorothy Stanley 802.11 TGv Wireless Network Management Third initial WG ballot LB 133 on draft 3.0 closed July 13. Results are 106/47/28 69.28% Failed TGv is resolving the comments from LB133. Group was unable to go out for recirculation WG ballot after this meeting; will try again in November. Major work on timing measurement, location, TIM broadcast.

11. Jesse Walker 802.11 TGw Protected Management Frames Initial Sponsor Ballot for IEEE 802.11w Draft 6.0 opened on August 22 and closes on September 22. Nothing much to do at this meeting

12. Peter Ecclesine 802.11 TGy 3650-3700 MHz Operation in USA IEEE 802.11y is on the September RevCom agenda for approval for publication

13. Menzo Wentink 802.11 TGz Extensions to Direct Link Setup Second initial WG closed on August 20. Results are 99/51/48 66.00% Failed. 800 comments received; 500 technical and 300 editorial. Will go out for third initial WG letter ballot in November.

14. Ganesh Venkatesan 802.11 TGaa 802.11 Video Transport Streams Had 2 presentations this week –08-1012r0 Harmonizing Multicast Proposals –08-0803r1 Multicast/Broadcast Communication with Acknowledge Completed and adopted OBSS requirements document 08- 0944r7 Completed and adopted multicast/broadcast requirements document 08-1093r0 Have received no proposals for one of the PAR items: “Intra- Access Category prioritization of transport streams by modifying EDCA timing and parameter selection without any requirement for deep packet inspection” Planned for a joint meeting with 802.1AVB in November –QoS issues will be the primary topic of discussion Estimating having a draft ready for first WG ballot in November 2009

15. TK Tan 802.11 WNG Wireless Next Generations SC Five presentations at this meeting –11-08-1086r0: "IEEE 802.21 Broadcast Handovers Study Group“ Target is to use WLAN indoors and enable handovers between 802.11 and DVB –11-08-1046r0: "WAVE Channel Modeling and The Midamble Insertion Effects“ –11-08-1020r1: "WLAN field trial in high speed moving environment“ IEEE802.11 PHY can be used in high speed moving environment. (> 200km/h) Doppler effect can be ignored. IEEE802.11 MAC has some issues in high speed moving environment especially on handover. So we used MIS protocol instead of IEEE802.11 MAC. –11-08-0973r0: "Security in Wireless Networks: using PHY resources to do better" Amend measurement/management/control to support enhanced low-layer security techniques Basic algorithm/policy set needs to be defined –802.11 v. 802.1AE? –addressing unique challenges/opportunities of wireless –11-08-1022r0: "SlyFi: Enhancing 802.11 Privacy by Concealing Link Layer Identifiers“ Wireless devices are becoming personal and pervasive Best practices don’t protect users from simple attacks –Long-term linking: tracking, profiling, inventorying –Short-term linking: side-channel attacks We need a protocol enhancement to defend against these attacks that removes all identifying bits

16. David Bagby 802.11 ARC Architecture SC This week discussions were again focused on decomposing the MAC block of 802.11.

17. Eldad Perahia VHT Study Group Very High Throughput VHT L6 (<6GHz) PAR and 5C were approved by ExCom in July. Standards Board approval should happen this month. Group will meet as a task group in November; call for chair has gone out. VHT 60 (60GHz) PAR and 5C were not approved by the ExCom in July. ExCom teleconferences, joint meetings between 802.11 and 802.15, and study group meetings have modified the PAR and 5C; these modified PAR and 5C have received strong support from 802.15, and has been approved by the study group and the full WG. ExCom approval will be tried again in November.

18. Jesse Walker JTC1/SC6 Ad-Hoc ISO/IEC JTC1/SC6 Chinese proposed three ways to move forward with WAPI in standardization bodies. Ad-Hoc is discussing the three viable alternatives, make a recommendation, and ask for WG approval of that recommendation.

19. IMT Advanced Ad-Hoc IMT (International Mobile Telecommunications)- Advanced is an ITU-R initiative for the next generation of mobile services. 802.11 is looking at how the initiative may affect 802.11, and if 802.11 may be useful to the initiative. Joint meeting with 802.21 on preparing a slide to be included in a 802.16 presentation at the ITU-R WP5D workshop in Korea October 7. Working on a WG vote in November to decide how to pursue submissions to IMT-Advanced. Bruce Kraemer/Darwin Engwer

20. Dorothy Stanley IETF Ad-Hoc Did not meet