1. Submission Spetember 2006 Canpolat et. alSlide 1 IEEE 802.11u Network Selection & MIH Support Notice: This document has been prepared to assist IEEE 802.11. 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 IEEEs name any IEEE Standards publication even though it may include portions of this contribution; and at the IEEEs 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 802.11. 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 Working Group 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 802.11 Working Group. If you have questions, contact the IEEE Patent Committee Administrator at.http:// ieee802.org/guides/bylaws/sb-bylaws.pdfstuart.kerry@philips.compatcom@ieee.org Date: 2006-09-19 Authors:

2. Submission Spetember 2006 Canpolat et. alSlide 2 IEEE 802.11u Progress Draft base line document, P802.11u-D0.01, was created, Internal review in September meeting Confirmed the Network Selection & MIH Support proposals. Network Selection: –11-06-1014-03-000u-network-selection-normative-text.doc MIH Support: –11-06-1016-02-000u-mih-support-normative-text.doc Will incorporate them in TGu draft D0.02 by November meeting

3. Submission Spetember 2006 Canpolat et. alSlide 3 Agenda TGu Update Network Selection/MIH support details 802.21 related Issues What 802.11 Information should be stored in 802.21 Information Server? Example Queries Q&A

4. Submission Spetember 2006 Canpolat et. alSlide 4 TGu Network Selection & MIH Support MIH support within IEEE 802.11u directly re- uses the Network Selection solution for. –Advertisement Capabilities MIH Information Service MIH CS/ES capability discovery –L2 transport Support MIH Queries –Note that they both are supported in S1 (pre-association) –In S3, AP provides transparent transport between MIH peers MIH specific MLME primitives

5. Submission Spetember 2006 Canpolat et. alSlide 5 Advertisement Capability Interworking Capability IE Generic Advertisement Service (GAS) Capability IE Advertisement Protocols IE

6. Submission Spetember 2006 Canpolat et. alSlide 6 GAS Capability IE The Advertising Protocol Information element: –Contains information which identifies a particular advertisement protocol & its delivery method

7. Submission Spetember 2006 Canpolat et. alSlide 7 Advertisement Protocol IE The Advertising Protocol Information element: –Contains information which identifies a particular advertisement protocol –Delivery methods as shown below.

8. Submission Spetember 2006 Canpolat et. alSlide 8 Network Selection & MIH Query Mechanisms

9. Submission Spetember 2006 Canpolat et. alSlide 9 Network Selection & MIH Transport Mechanism Defined Action Frames for Query & Response transport for: –Initial Request –Initial Response –Comeback Request –Comeback Response

10. Submission Spetember 2006 Canpolat et. alSlide 10 Example of Unicast Query/Transport

11. Submission Spetember 2006 Canpolat et. alSlide 11 802.11 STA and ES/CS Primitives Need details and clarification on some MLME primitives including –Missing primitives for setting parameters e.g. link_parameters_change, link_going_down –Specifying the threshold values of some parameters – e.g. confidence level for link_going_down, link speed, BER, frame loss rate, signal strength etc…. –Further clarification on link_handover_imminent

12. Submission Spetember 2006 Canpolat et. alSlide 12 AP to 802.21-IS Protocol Issues Mechanism to limit size of Query Response –Important only when client is in state 1 –When client is in state 3, any query response length is acceptable Mechanism to identify final fragment of a multi- fragment Query Response

13. Submission Spetember 2006 Canpolat et. alSlide 13 What 802.11 Information should be stored in 802.21 Information Server? Guiding principles –Put the minimum information needed by STA for network selection and network identificationminimizes synchronization problems between configuration of 802.11 AN and 802.21-IS database –Include support for two types of queries: Remote query (state 3 query): Im in San Francisco and want to find out what hotspots are in Melbourne Local query (state 1 query): I can see 3 hotspots now, which one is the best to associate with? –Do not include 802.11 AN dynamic information; examples include: Channel number, transmit power Traffic Load

14. Submission Spetember 2006 Canpolat et. alSlide 14 What 802.11 Information should be stored in 802.21 Information Server (cont.)? Fundamental binding provided by 802.21-IS –SSPN to WLAN –WLAN identified by {SSID, ESSID} Recommended information to store in 802.21 database: –SSPN name/realm –SSPN roaming partners –Interworking services by SSPN (including emergency services) –802.11 AN parameters: Location Country/regulatory domain {SSID, ESSID} PHY types supported 802.11e QoS support

15. Submission Spetember 2006 Canpolat et. alSlide 15 Query Examples What WLANs support my subscriptions? –STA: provides list of subscriptions –802.21-IS: provides list of {SSPN, SSID, ESSID} where SSPNs includes roaming partners Is emergency service supported on this WLAN? –STA: provides ESSID(s) –802.21-IS: provides list of {SSPN, SSID, ESSID} What interworking services are supported on this WLAN? –STA: provides ESSID(s) –802.21-IS: provides list of {SSPN, SSID, ESSID, interworking services}

16. Submission Spetember 2006 Canpolat et. alSlide 16 Query Examples (cont.) Is VoIP services provided on this WLAN? –STA: provides ESSID(s) –802.21-IS: provides list of {SSPN, SSID, ESSID} which support VoIP –Note that VoIP is just an example; query could be for any interworking service Im traveling to Melbourne, what hotspots are located there? –STA: provides location (latitude, longitude), search radius –802.21-IS: provides list of {SSPN, SSID, ESSID} –This could potentially generate a lengthy query response

17. Submission Spetember 2006 Canpolat et. alSlide 17 Backup

18. Submission Spetember 2006 Canpolat et. alSlide 18 Initial Request & Response

19. Submission Spetember 2006 Canpolat et. alSlide 19 Comeback Request & Response