1. doc.: IEEE 802.11-11/1244r0 Submission Sep 2011 Hiroshi Mano, Root, Inc.Slide 1 11ai overview (PAR, Scope and current status) Date: 2011-09-19 Authors: NameCompanyAddressPhoneemail Hiroshi MANOROOT Inc.8F TOC2 Bldg. 7-21-11 Nishi- Gotanda, Shinagawa-ku, Tokyo 141-0031 JAPAN +81-3-5719-7630hmano@root-hq.com

2. doc.: IEEE 802.11-11/1244r0 Submission Sep 2011 Hiroshi Mano, Root, Inc.Slide 2 Agenda –PAR overview –Current status –Time line

3. doc.: IEEE 802.11-11/1244r0 Submission Sep 2011 PAR overview 1/3 11-10/1152r1 Fast Initial Link Set-Up PAR Scope of Proposed Standard: –This amendment defines modifications to the IEEE 802.11 Medium Access Control Layer (MAC) to enable a fast initial link set-up of IEEE 802.11 stations (STAs) Purpose of Proposed Standard: –This amendment defines mechanisms that provide IEEE 802.11 networks with fast initial link set-up methods which do not degrade the security currently offered by Robust Security Network Association (RSNA) already defined in IEEE 802.11. Hiroshi Mano, Root, Inc.Slide 3

4. doc.: IEEE 802.11-11/1244r0 Submission Sep 2011 PAR overview 2/3 Need for the Project: –The number of mobile devices incorporating IEEE 802.11 is steadily growing. Applications that are continuously running on those devices benefit from the high data rates of the IEEE 802.11 interface. –The project’s primary need comes from an environment where mobile users are constantly entering and leaving the coverage area of an existing extended service set (ESS). Every time the mobile device enters an ESS, the mobile device has to do an initial link set-up to establish wireless local area network (LAN) connectivity. This requires efficient mechanisms that (a) scale with a high number of users simultaneously entering an ESS (b) minimize the time spent within the initial link set-up phase (c) securely provide initial authentication. –The current IEEE 802.11 specification does not meet these requirements in some usage scenarios. An optimization of the link set-up is desirable. Optimizations may include improvements to access point / network discovery, secure authentication, mechanisms to support concurrency in the exchange of higher layer protocol messages during the authentication phase (for example assignment of IP addresses). Hiroshi Mano, Root, Inc.Slide 4

5. doc.: IEEE 802.11-11/1244r0 Submission Sep 2011 PAR overview 3/3 Additional Explanatory Notes: –Scope: The project intends to amend the MAC only, thereby providing a fast initial link service to all IEEE 802.11 devices. The project does not intend to remove any existing mechanisms of IEEE 802.11 but to add additional, coexisting functionality enabling fast initial link set-up. – 5.4) Purpose: The amendment will not deprecate existing security mechanisms of IEEE 802.11. – 5.5) Need for the project IEEE 802.11 STAs may spend several seconds in secure initial link establishment including the time required to sequentially transmit messages for IP address assignment. Amending schemes to improve access point/network discovery and secure authentication may reduce this time to less than 100 ms in certain circumstances. Reducing the number of messages transmitted over the air per user during link set-up frees airtime and increases the number of users that may simultaneously enter an ESS. Hiroshi Mano, Root, Inc.Slide 5

6. doc.: IEEE 802.11-11/1244r0 Submission Sep 2011 Current status of TGai Approved Use Case Scenario documentation –TGai draftuse case reference list, 11/11-11-0238-18-00ai-use-case- reference-list-for-tgai.docx Approved TGai requirement documentation –requirement documentation, 11/11-11-0745-05-00ai-tgai- functional-requirements.docx Approved Process for creating –process for creating tgai draft, /11/11-11-0748-03-00ai-process- for-creating-tgai-draft.pptx Approved Evaluation Methodology –evaluation methodology, 11/11-11-0811-07-00ai-tgai-evaluation- methodology.docx Hiroshi Mano, Root, Inc.Slide 6

7. doc.: IEEE 802.11-11/1244r0 Submission Sep 2011 Process Flow Hiroshi Mano, Root, Inc.Slide 7 We are here!

8. doc.: IEEE 802.11-11/1244r0 Submission Sep 2011 Time line Hiroshi Mano, Root, Inc.Slide 8

9. doc.: IEEE 802.11-11/1244r0 Submission Sep 2011 Contributions on this week Technical contributions –11-11-1167r0 Upper Layer Data IE / Hiroki Nakano (TN) –11-11-1169r0 FILS association / JH Lee (LG) –11-11-1170r0 text for FILS association / JH Lee (LG) –11-11-1171r0 FILS IP configuration / JH Lee (LG) –11-11-1172r0 text for FILS IP configuration / JH Lee (LG) –11-11-0977r2 TGai Upper Layer Setup Proposal / Hitoshi Morioka (Root,.INc) –11-11-0976r5 TGai Authentication Protocol Proposal –11/11-1108r1 Providing IP address config param to the STA during auth /Gabor Bajko (Nokia) –11-11/1047r3 Using Upper Layer Message IE in Tgai /Ping Fang, Zhiming Ding, Phillip Barber (Huawei) –11-11/1160/r2 Fast Re-authentication / George Cherian (Qualcomm Inc.) General Submission –11-11-1232/r0 Active-Scanning-Improvement.pptx –11-11-1233/r0 Passive-Scanning-Improvements.pptx –11-11-1183/r0 IP over Congested WLAN / Masatak Ohta (Tokyo Institute of Technology) Hiroshi Mano, Root, Inc.Slide 9