March 2007

Canpolat et al

Slide 1

doc.: IEEE 802.11-07/0446r0

Submission

Hotspot Type Identification Assisted Network Selection

Date: 2007-03-15

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.

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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@ok-brit.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>.

Authors:Name Company Address Phone email Necati Canpolat Intel Corporation 2111 NE. 25th Ave,

Hillsboro, OR 97124 +1 503-264-8014 necati.canpolat@intel.com

Vivek Gupta Intel Corp 2111 NE. 25th Ave,

Hillsboro, OR 97124 +1 503 712 1754 vivek.g.gupta@intel.com

Dave Stephenson Cisco Systems 170 W. Tasman Dr. San

Jose, CA 95134 +1 408 527 7991 daves@cisco.com

March 2007

Canpolat et al

Slide 2

doc.: IEEE 802.11-07/0446r0

Submission

Abstract

This contribution describes a method for assisting the STA with network selection by providing the WLAN type identification details.

There will be a straw poll at the end of this presentation.

March 2007

Canpolat et al

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doc.: IEEE 802.11-07/0446r0

Submission

Agenda

• Background and Problem Description

• Solution Outline

• Straw Polls

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Canpolat et al

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Submission

Background and Problem Description

• Today as the WLAN air interface is currently defined, before accessing the network, a STA can only tell if the network security is enabled or not.

• When a STA tries to select a WLAN network there is no way of telling which network is private, public, enterprise or hotspot and their authorization mechanisms.

• Example use case:– Client powers up in a downtown urban setting, scans the environment and detects

100 SSIDs. Client must sort the list into those SSIDs to process further and those to discard

– Important for client to conserve battery energy during sorting process, so a fast sorting mechanism is beneficial

– After first-pass fast sort, client can make targeted GAS queries to determine services available, online enrolment possibility, etc.

• To enable seamless handover, the client needs to know whether to:– Programmatically launch a browser or HTTP client: even if SSID is open auth, web

auth may still be employed denying service until login completed (this indication is helpful when WLAN does not support state-1 access to 802.21-IS).

– Programmatically launch VPN if needed: VPN may be needed on public networks, but not on home enterprise network.

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Canpolat et al

Slide 5

doc.: IEEE 802.11-07/0446r0

Submission

WLAN Type and Access details

Scenario description Web Auth Notes

Home network No No registration nor payment needed

A enterprise private network No

Authorized users only. E.g., corporation, university.

A enterprise private network with guest access Yes & No Authorized guest users only

Public free network Yes & No

Participants users only. E.g., museum, Portland downtown network, IEEE conference.

Commercial network Yes & No

Typical designation for hotspot or mesh network. May require user’s acceptance of provider’s terms. E.g., Coffee shop, airport, hotel networks.

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Canpolat et al

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doc.: IEEE 802.11-07/0446r0

Submission

Solution Outline

• Configure the WLAN indicating the type of the network i.e. hotspot/public/enterprise/private access.

• Advertise the WLAN type and enrolment method.

• The STAs can listen to it prior to WLAN association in state-1 and make use of hotspot configuration information when making network selection.

• After the STA detects that the WLAN type, it may perform the proper steps to establish network connection and enrolment.

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Canpolat et al

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doc.: IEEE 802.11-07/0446r0

Submission

Modified ESSID Information Element

Element ID Length ESSID Network Type

Octets: 1 1 6 1

• ESSID IE copied from 802.11u-D0.02;

Network Type Value

Home 0

Enterprise 1

Enterprise with Guest Access

2

Public Free 3

Commercial 4

Reserved 5 - 255

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Canpolat et al

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doc.: IEEE 802.11-07/0446r0

Submission

Straw Poll

• Is TGu supportive of 11-07/00446r0 and interested in having authors draft normative text for inclusion into TGu draft?