1. doc.: IEEE 802.11-05/1168r0 Submission November, 2005 Yao Zhonghui, Huawei Slide 1 802.11u Proposal Authors: 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 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 802.11. 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

2. doc.: IEEE 802.11-05/1168r0 Submission November, 2005 Yao Zhonghui, Huawei Slide 2 Purpose This presentation expresses our understanding of the 802.11u requirements and proposes solutions to fulfill some of the requirements.

3. doc.: IEEE 802.11-05/1168r0 Submission November, 2005 Yao Zhonghui, Huawei Slide 3 Outline Basic Issues associated with Inter-working Proposal for 802.11u Architecture Proposal for Network Selection Proposal for 802.21 MIH Requirements

4. doc.: IEEE 802.11-05/1168r0 Submission November, 2005 Yao Zhonghui, Huawei Slide 4 Inter-working Issues in 802.11u External Network Information Interworking Capability Network Selection Network Sharing STA Sharing Security and Protection Battery Consumption

5. doc.: IEEE 802.11-05/1168r0 Submission November, 2005 Yao Zhonghui, Huawei Slide 5 Network Selection Network Selection is about: –Is this network my home network? If no, does it have the capability of inter-working? –R3N2: select the correct credentials when authenticating with a Local Network. Network Selection is based on –External Network Information –Local Network Information Inter-working capability R3E4: Functionality shall be provided by which APs can advertise (before connection) the charges that will be made for use of the network if a user enrolls with it.

6. doc.: IEEE 802.11-05/1168r0 Submission November, 2005 Yao Zhonghui, Huawei Slide 6 Inter-working Capability Some examples of Inter-working Capability are: –R3E1: what online enrolment (also called online subscription) methods are supported by the network. –R3M4: Emergency Call (e.g. E911) service. Specifically: Capability Advertisement –MIH Capability (unapproved requirement)

7. doc.: IEEE 802.11-05/1168r0 Submission November, 2005 Yao Zhonghui, Huawei Slide 7 External Network Information External Network Information includes those from: –R3N1: Define functionality by which a STA can determine whether its subscription to an SSPN would allow it to access a particular 802.11AN before actually joining a BSS within that 802.11 AN –R3N4: Define functionality by which a STA can determine which inter-working services are available before joining a BSS –R3N5: Functionality shall be provided by which APs can advertise (before connection) the charges that will be made for use of the network if connection is authorized based on an SSPN subscription. –MIH related information (unapproved requirements)

8. doc.: IEEE 802.11-05/1168r0 Submission November, 2005 Yao Zhonghui, Huawei Slide 8 Outline Basic Issues associated with Inter-working Proposal for 802.11u Architecture Proposal for Network Selection Proposal for 802.21 MIH Requirements

9. doc.: IEEE 802.11-05/1168r0 Submission November, 2005 Yao Zhonghui, Huawei Slide 9 802.11 Components DS BSS1 BSS2 STA 1 STA 2 STA 4 STA3 Portal AP 802.x LAN ESS 802.11 defines an integration service that supports MSDU delivery between BSS and integrated LAN. Portal is defined as the logical point at which the integration service is provided.

10. doc.: IEEE 802.11-05/1168r0 Submission November, 2005 Yao Zhonghui, Huawei Slide 10 802.11u Components Proposal: A new ‘entrance’ entity Introduced DS BSS1 BSS2 STA 1 STA 2 STA 4 STA3 Portal AP 802.x LAN External Network Entrance We define ‘entrance’ as the logical point at which the inter-working service is provided. An 802.11u network can inter-work with different external networks by only one entrance or related different entrances.

11. doc.: IEEE 802.11-05/1168r0 Submission November, 2005 Yao Zhonghui, Huawei Slide 11 General Model of Inter-working between Network Entities DSM AP Entrance AP STA1STA3TOE AS/ proxy GW TOE AS SSPN

12. doc.: IEEE 802.11-05/1168r0 Submission November, 2005 Yao Zhonghui, Huawei Slide 12 Entrance Functionality Data Delivery –All packets from STA are delivered to the corresponding network of TOE by entrance; –All packets to STA are delivered to the corresponding AP by entrance; Entrance can learn the association relationship from DS –Data delivery according to the specified constraints (e.g. SSPN authorization information) between AP and entrance; QoS specified constraints Security specified constraints 802.11 Services for MIH functionality

13. doc.: IEEE 802.11-05/1168r0 Submission November, 2005 Yao Zhonghui, Huawei Slide 13 Outline Basic Issues associated with Inter-working Proposal for 802.11u Architecture Proposal for Network Selection Proposal for 802.21 MIH Requirements

14. doc.: IEEE 802.11-05/1168r0 Submission November, 2005 Yao Zhonghui, Huawei Slide 14 Network Selection in 802.11 Network Selection should be based on Inter-working Capability and related external network information.

15. doc.: IEEE 802.11-05/1168r0 Submission November, 2005 Yao Zhonghui, Huawei Slide 15 Local Network Information Network Owner Identifier Inter-working Capability Information –Interworking Capability Bit Supports inter-working or not –MIH Bit MIH enabled or not –Emergency call Bit Emergency call enabled or not –Virtual STA bit Virtual STA access support or not –…… Online enrollment methods –e.g. UAM

16. doc.: IEEE 802.11-05/1168r0 Submission November, 2005 Yao Zhonghui, Huawei Slide 16 External Network Information External Network Identifier Inter-working Type –Intranet –Internet –3GPP 3GPP scenarios 1 == Internet 3GPP scenarios 2 3GPP Scenarios 3 …… –3GPP2 –UMA Other related information –MIH network information –Charge information –Roaming related information, etc.

17. doc.: IEEE 802.11-05/1168r0 Submission November, 2005 Yao Zhonghui, Huawei Slide 17 Network Selection Routine APSTA Beacon (Message 1: Interworking Capability Information) Probe request (Message 2: Network Discovery Request) Probe response (Message 3: Network Discovery Response) Begin to SCAN Join a selected BSS entrance External Network Information Request External Network Information Response

18. doc.: IEEE 802.11-05/1168r0 Submission November, 2005 Yao Zhonghui, Huawei Slide 18 Outline Basic Issues associated with Inter-working Proposal to 802.11u Architecture Proposal to Network Selection Proposal to 802.21 MIH Requirements

19. doc.: IEEE 802.11-05/1168r0 Submission November, 2005 Yao Zhonghui, Huawei Slide 19 MIH Architecture for 802.11 New items in scope of 802.21

20. doc.: IEEE 802.11-05/1168r0 Submission November, 2005 Yao Zhonghui, Huawei Slide 20 NoEvent TypeEvent NameDescription 1State ChangeLink UpL2 Connection established 2State ChangeLink DownL2 Connection is broken 3PredictiveLink Going DownL2 connection breakdown imminent 4State ChangeLink DetectedNew L2 link has been found 5State ChangeLink Parameters ChangeChange in specific link parameters has crossed pre- specified thresholds (link Speed/Qos/ Quality metrics) 6AdministrativeLink Event RollbackEvent rollback 7Link TransmissionLink SDU Transmit SuccessImprove handover performance through local feedback as opposed to waiting for end-to-end notifications 8Link TransmissionLink SDU Transmit FailureError in transmitting SDU corresponding to a specific PDU 9Link SynchronousLink Handover ImminentL2 intra-technology handover imminent (subnet change). Notify Handover information without change in link state) 10Link SynchronousLink Handover CompleteNotify handover state Proposed Link Layer Events

21. doc.: IEEE 802.11-05/1168r0 Submission November, 2005 Yao Zhonghui, Huawei Slide 21 Information Element Name DescriptionMedia Types Comments Inter Technology Neighbor Reports List of networks availableList all network types that are available given a location or POA information AllE.g., 802.3, 802.11, 802.16, GSM, GPRS/EDGE networks Location of PoAGeographical Location, Civic address, PoA ID AllE.g. GML format for LBS or network management purpose OperatorName of the network providerAllE.g. Vodafone, Orange. Could be equivalent to Network ID. IP VersionIndicates the version Internet Protocol used AllIPv4 and/or IPv6 Roaming PartnersList of direct roaming agreementsE.g. in form of NAIs or MCC+MNC CostIndication of costs for service/network usage AllE.g, Free/Not free or (flat rate, hourly, day or weekly rate) SecurityLink layer security supported AllTechnology specific, e.g. WEP in 802.11, 802.11i, PKM in 802.16, etc. Quality of ServiceLink QoS parameters AllE.g. QoS Classes, Traffic specifications Information Elements 1 of 2 Media Independent Neighbor Reports

22. doc.: IEEE 802.11-05/1168r0 Submission November, 2005 Yao Zhonghui, Huawei Slide 22 Name of Information ElementDescriptionComments Higher Layer Services Supported IMS Access (MMS, SMS, Presence, Instant Message, Push-to-Talk, …) Indication whether specific service is supported or not 802.21 specific methods, e.g., a new flag, query/response ISP SupportedInternet Service Provider that provides the access to internet Location based servicesList of Local services that are available given a location VPN SupportedNetwork enables VPN services MIP SupportedNetwork enables MIP version and services Use of NATNAT is used for internet access Information Elements 2 of 2 Higher Layer Services Information (HLSI)

23. doc.: IEEE 802.11-05/1168r0 Submission November, 2005 Yao Zhonghui, Huawei Slide 23 Summary Basic Issues –Network Selection, Network sharing, STA sharing, etc. Proposal for 802.11u Architecture –‘Entrance’ Entity, External network information service, Delivery service with the specified constraints Proposal for Network Selection –Network selection based on inter-working capability and external network information. Proposal for 802.21 MIH Requirements

24. doc.: IEEE 802.11-05/1168r0 Submission November, 2005 Yao Zhonghui, Huawei Slide 24 References 11-05-0840-04-000u-802.11u-proposal 11-05-1006-00-000u-initial-network-selection-consept 11-05-0898-01-000u-service-access-contexts 11-05-0971-00-000u-redefining-ssid 11-05-0822-03-000u-tgu-requirements 11-05-0279-15-000u-suggested-tgu-functional- requirements 11-05-0333-05-000u-terms-and-definitions 11-05-0355-04-000u-draft-scope-scenarios-and- assumptions

25. doc.: IEEE 802.11-05/1168r0 Submission November, 2005 Yao Zhonghui, Huawei Slide 25 Backup