802.11u Proposal Date: 2005-09-10 Authors: September, 2005 July 2005 doc.: IEEE 802.11-05/0721r0 September, 2005 802.11u Proposal Date: 2005-09-10 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 <http:// ieee802.org/guides/bylaws/sb-bylaws.pdf>, 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 <stuart.kerry@philips.com> 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 <patcom@ieee.org>. Yao Zhonghui, Huawei Cheng Hong, Panasonic

July 2005 doc.: IEEE 802.11-05/0721r0 September, 2005 Abstract This presentation gives a summary of the general problems of interworking from 802.11u requirements and gives a solution on some of these problems. Yao Zhonghui, Huawei Cheng Hong, Panasonic

Outline General Questions on Interworking 802.11u Architecture September, 2005 Outline General Questions on Interworking 802.11u Architecture Network Selection Visual STA Yao Zhonghui, Huawei

General Questions on Interworking September, 2005 General Questions on Interworking Interworking Capability Network Selection External Network Information Security Consideration Network Sharing SSPN Interface STA Sharing Multi-Credentials Yao Zhonghui, Huawei

External Network Information September, 2005 External Network Information From requirement: Network Selection A STA whether its subscription to an SSPN would allow it to access a particular 802.11AN which interworking services are available 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. 802.21 MIH Support Provide a transport mechanism for MIH related information elements in state 1: unauthenticated, unassociated (class 1 frames) Yao Zhonghui, Huawei

Interworking Capability September, 2005 Interworking Capability From requirement: Online Enrollment R0E1: Define functionality by which the STA is able to determine what online enrolment (also called online subscription) methods are supported by the network. R0E4: 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. 802.21 MIH Support Provide a mechanism (for APs) to indicate Media Independent Handoff capability Yao Zhonghui, Huawei

September, 2005 Network Selection Should based on Interwoking Capability and external network information. Network Selection policy is out of scope of 802.11u Yao Zhonghui, Huawei

SSPN Interface From requirement September, 2005 SSPN Interface Define the Authorization Information (originated from the SSPN ) that shall be provided to the MAC and associated functionality. Define the Authorization Information (originated from the SSPN ) that shall be provided to the MAC and associated functionality honoring the information in the MAC. Define functionality by which admission control and QoS mapping decisions made locally in the 802.11 AN can be influenced by the contents of the Authorization Information. Define functionality by which the Authorization Information described above can be modified by the SSPN. Make accessible accounting information for transfer to the SSPN. This shall include information about accepted TSPECs, their duration, and about actual traffic flows. Yao Zhonghui, Huawei

Network Sharing From requirements September, 2005 Network Sharing From requirements Network Selection to support authentication with multiple SSPNs through a single AP. Tightly associated with SSPN interface Yao Zhonghui, Huawei

STA Sharing From requirements Authentication September, 2005 A STA shall be able to authenticate with different SSPNs simultaneously, in order to gain simultaneous access to multiple Destination Networks Yao Zhonghui, Huawei

Multi-Credentials From requirements Network Selection Authentication September, 2005 Multi-Credentials From requirements Network Selection a STA that has multiple credentials with an SSPN to select the correct credentials when authenticating with a Local Network. Authentication A STA shall be able to authenticate with different SSPNs simultaneously, in order to gain simultaneous access to multiple Destination Networks. Yao Zhonghui, Huawei

Security Consideration September, 2005 Security Consideration Network sharing security consideration STA sharing security consideration STA MAC address protection From requirements Protection Define functionality to prevent hijack of MAC addresses. Provide functionality for MAC Address Anonymity Yao Zhonghui, Huawei

Outline General Questions on Interworking 802.11u Architecture September, 2005 Outline General Questions on Interworking 802.11u Architecture Network Selection Visual STA Yao Zhonghui, Huawei

September, 2005 802.11 Components BSS1 STA 1 ESS STA 2 AP DS AP 802.x LAN Portal STA3 STA 4 BSS2 802.11 defined an integration service that supports MSDU delivery between BSS and integrated LAN. And, Portal is defined as the logical point at which the integration service is provided. Yao Zhonghui, Huawei

802.11u Components Proposal: A new ‘entrance’ entity Introduced September, 2005 802.11u Components Proposal: A new ‘entrance’ entity Introduced BSS1 External Network STA 1 STA 2 Entrance DS AP AP 802.x LAN Portal STA3 STA 4 BSS2 We also define ‘entrance’ as the logical point at which the interworking service is provided. An 802.11u network can interwork with different external networks by only one entrance or related different entrances. Yao Zhonghui, Huawei

Overview Model of Interworking Network Entities September, 2005 Overview Model of Interworking Network Entities AS TOE SSPN AS/ proxy GW TOE SSPN Entrance Entrance DS AP AP AP AP STA1 STA3 TOE Yao Zhonghui, Huawei

Overview Model of Network Entities September, 2005 Overview Model of Network Entities AS TOE SSPN AS/ proxy GW TOE SSPN Here’s 802.11u Concerns. Entrance Entrance DS AP AP AP AP STA1 STA3 TOE Yao Zhonghui, Huawei

Basic Interworking functions September, 2005 Basic Interworking functions AS TOE SSPN AS/ proxy GW TOE SSPN External network information service Entrance Entrance DS Bear service AP AP AP AP External network Discovery and selection STA1 STA3 TOE Yao Zhonghui, Huawei

New Architectural Services for Interworking September, 2005 New Architectural Services for Interworking External Network Information Service This is a DSS that an AP can access external network information for supporting STA network discovery/selection. Bear Service This is a DSS that an AP can request DS to maintain a bear for a specific flow according SSPN authorization information. Yao Zhonghui, Huawei

Outline General Questions on Interworking 802.11u Architecture September, 2005 Outline General Questions on Interworking 802.11u Architecture Network Selection Visual STA Yao Zhonghui, Huawei

Background 802.11 Network Selection based on SSID, and BSSDescription. September, 2005 Background 802.11 Network Selection based on SSID, and BSSDescription. BSSDescription includes network capability information of: CapabilityInformation BSSBasicRateSet RSN Etc Yao Zhonghui, Huawei

September, 2005 802.11u Network Selection 802.11u Network Selection Should based on Interwoking Capability and related external network information. Network Selection policy is out of scope of 802.11u Yao Zhonghui, Huawei

Interworking Capability Information September, 2005 Interworking Capability Information Network Owner Identifier Basic Interworking capability Information Interworking Capability Bit Support interworking or not MIH Bit MIH enabled or not Urgent call Bit Urgent call enabled or not …… Online enrollment methods e.g. UAM Yao Zhonghui, Huawei

External Network Information September, 2005 External Network Information External Network Identifier Interworking Type Intranet Internet 3GPP 3GPP scenarios 1 == Internet 3GPP scenarios 2 3GPP Scenarios 3 …… 3GPP2 UMA Other related informations E.g. MIH network information, charges information, Roaming related information, etc. Yao Zhonghui, Huawei

External Network Information Service is a DSS September, 2005 External Network Information Service is a DSS AP (a1) SAP (a2) (b) DS A、request-response mechanism (a1) External-network-information.request (a2) External-network-information.response B、Indication mechanism (b) External-network-information.indication Yao Zhonghui, Huawei

Network Selection Routine September, 2005 Network Selection Routine STA AP DS Begin to SCAN Message 1: Interworking Capability Information Message 2: Network Discovery Request External Network Information Request Message 3: Network Discovery Response External Network Information Response Join a selected BSS Yao Zhonghui, Huawei

Outline General Questions on Interworking 802.11u Architecture September, 2005 Outline General Questions on Interworking 802.11u Architecture Network Selection Visual STA Yao Zhonghui, Huawei

Requirements September, 2005 AS2 AS1 Entrance Entrance External Network External Network DS AP TOE1 TOE2 STA Yao Zhonghui, Huawei

Visual STA Approach September, 2005 DS AP One STA may simulate as more than one visual STAs (v-STAs). Each v-STA has independent state machine. V-STA1 V-STA2 STA2 BSS STA1 Yao Zhonghui, Huawei

The Creation of Visual STA September, 2005 The Creation of Visual STA STA AP Visual STA Create Temporary address allocation request（V-STA instance No.） Temporary address allocation response (V-STA instance No, T-MAC-ADDR） Temporary address allocation Authenticate Association request Association Response Yao Zhonghui, Huawei

Communication based on visual STA September, 2005 Communication based on visual STA AS#1 AS#2 Client#1 Client#2 TOE#1 TOE#2 STA AP Visual STA mapping Visual STA mapping T-MAC#1 T-MAC#2 T-MAC#2 T-MAC#1 Yao Zhonghui, Huawei

MSDUs from STA to AP September, 2005 MAC (STA) MAC (AP) MA-UNITDATA.request Replace TA from real MAC address To V-STA temporary address MSDU transfer MA-UNITDATA-STATUS.indication Resume TA from V-STA temporary Address to real MAC address MA-UNITDATA.indication Yao Zhonghui, Huawei

MSDUs from AP to STA September, 2005 MAC (AP) MAC (STA) MA-UNITDATA.request Replace RA from real MAC address To V-STA temporary address MSDU transfer MA-UNITDATA-STATUS.indication Resume RA from V-STA temporary Address to real MAC address MA-UNITDATA.indication Yao Zhonghui, Huawei

References 11-05-0822-00-000u-tgu-requirements September, 2005 References 11-05-0822-00-000u-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 Yao Zhonghui, Huawei