doc.: ieee 802.11-05/1168r0 submission november, 2005 yao zhonghui, huawei slide 1 802.11u proposal...

November, 2005

Yao Zhonghui, HuaweiSlide 1

doc.: IEEE 802.11-05/1168r0

Submission

802.11u Proposal

Name Company Address Phone email Zhonghui Yao Liangyao Mo

Huawei Longgang Production Base, Shenzhen 518129 P.R.China

+86-755-89650528

[email protected] [email protected]

Jim Carlo 214-693-1776 [email protected]

Linda Dunbar 972 543 5849 [email protected]

Bob Sultan

Huawei

1700 Alma Drive, Suite 100 Plano, TX 75025 914 276 0375 [email protected]

Vivek Gupta Intel

Feng Li ZTE

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 <[email protected]> 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 <[email protected]>.

November, 2005


doc.: IEEE 802.11-05/1168r0

Submission

Purpose

This presentation expresses our understanding of the 802.11u requirements and proposes solutions to fulfill some of the requirements.

November, 2005


doc.: IEEE 802.11-05/1168r0

Submission

Outline

• Basic Issues associated with Inter-working• Proposal for 802.11u Architecture

• Proposal for Network Selection

• Proposal for 802.21 MIH Requirements

November, 2005


doc.: IEEE 802.11-05/1168r0

Submission

Inter-working Issues in 802.11u

External NetworkInformation

InterworkingCapability

Network Selection

Network Sharing

STA Sharing

Security and Protection

Battery Consumption

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doc.: IEEE 802.11-05/1168r0

Submission

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.

November, 2005


doc.: IEEE 802.11-05/1168r0

Submission

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)

November, 2005


doc.: IEEE 802.11-05/1168r0

Submission

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)

November, 2005


doc.: IEEE 802.11-05/1168r0

Submission

Outline

• Basic Issues associated with Inter-working

• Proposal for 802.11u Architecture

• Proposal for Network Selection


November, 2005


doc.: IEEE 802.11-05/1168r0

Submission

802.11 Components

DS

BSS1

BSS2

STA 1

STA 2

STA 4

STA3PortalAP

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.

November, 2005


doc.: IEEE 802.11-05/1168r0

Submission

802.11u Components Proposal:A new ‘entrance’ entity Introduced

DS

BSS1

BSS2

STA 1

STA 2

STA 4

STA3PortalAP

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.

November, 2005


doc.: IEEE 802.11-05/1168r0

Submission

General Model of Inter-working between Network Entities

DSM

AP AP

Entrance Entrance

APAP

STA1 STA3 TOE

AS/proxy

GW

TOE

TOE

ASSSPN

SSPN

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doc.: IEEE 802.11-05/1168r0

Submission

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

November, 2005


doc.: IEEE 802.11-05/1168r0

Submission

Outline


• Proposal for 802.11u Architecture

• Proposal for Network Selection• Proposal for 802.21 MIH Requirements

November, 2005


doc.: IEEE 802.11-05/1168r0

Submission

Network Selection in 802.11

• Network Selection should be based on Inter-working Capability and related external network information.

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doc.: IEEE 802.11-05/1168r0

Submission

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

November, 2005


doc.: IEEE 802.11-05/1168r0

Submission

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.

November, 2005


doc.: IEEE 802.11-05/1168r0

Submission

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

November, 2005


doc.: IEEE 802.11-05/1168r0

Submission

Outline


• Proposal to 802.11u Architecture

• Proposal to Network Selection

• Proposal to 802.21 MIH Requirements

November, 2005


doc.: IEEE 802.11-05/1168r0

Submission

MIH Architecture for 802.11

New items in scope of 802.21

SMEor

NME

LLC

MAC

PHY

PHY_SAP

MAC_SAPMLME

PLME

MLME_PLME_SAP

MLM

E_S

AP

PLM

E_S

AP

LSAP

Layer 3 or higher Mobility Protocol (L3MP)

MIH

_SM

E_S

AP

802.21 ScopeMIH_L3MP_SAP

MIH_LINK_SAP

MIH FunctionMIH Event ServiceMIH Command ServiceMIH Information Service

November, 2005


doc.: IEEE 802.11-05/1168r0

Submission

No Event Type Event Name Description

1 State Change Link Up L2 Connection established

2 State Change Link Down L2 Connection is broken

3 Predictive Link Going Down L2 connection breakdown imminent

4 State Change Link Detected New L2 link has been found

5 State Change Link Parameters Change Change in specific link parameters has crossed pre-specified thresholds (link Speed/Qos/ Quality metrics)

6 Administrative Link Event Rollback Event rollback

7 Link Transmission Link SDU Transmit Success Improve handover performance through local feedback as opposed to waiting for end-to-end notifications

8 Link Transmission Link SDU Transmit Failure Error in transmitting SDU corresponding to a specific PDU

9 Link Synchronous Link Handover Imminent L2 intra-technology handover imminent (subnet change). Notify Handover information without change in link state)

10 Link Synchronous Link Handover Complete Notify handover state

Proposed Link Layer Events

November, 2005


doc.: IEEE 802.11-05/1168r0

Submission

Information Element Name

Description Media Types

Comments

Inter Technology Neighbor ReportsList of networks available List all network types that are

available given a location or POA information

All E.g., 802.3, 802.11, 802.16, GSM, GPRS/EDGE networks

Location of PoA Geographical Location, Civic address, PoA ID

All E.g. GML formatfor LBS or network management purpose

Operator Name of the network provider All E.g. Vodafone, Orange. Could be equivalent to Network ID.

IP Version Indicates the version Internet Protocol used

All IPv4 and/or IPv6

Roaming Partners List of direct roaming agreements E.g. in form of NAIs or MCC+MNC

Cost Indication of costs for service/network usage

All E.g, Free/Not free or (flat rate, hourly, day or weekly rate)

Security Link layer security supported All Technology specific, e.g. WEP in 802.11, 802.11i, PKM in 802.16, etc.

Quality of Service Link QoS parameters All E.g. QoS Classes, Traffic specifications

Information Elements 1 of 2Media Independent Neighbor Reports

November, 2005


doc.: IEEE 802.11-05/1168r0

Submission

Name of Information Element Description Comments

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 Supported Internet Service Provider that provides the access to internet

Location based services List of Local services that are available given a location

VPN Supported Network enables VPN services

MIP Supported Network enables MIP version and services

Use of NAT NAT is used for internet access

Information Elements 2 of 2Higher Layer Services Information (HLSI)

November, 2005


doc.: IEEE 802.11-05/1168r0

Submission

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.


November, 2005


doc.: IEEE 802.11-05/1168r0

Submission

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

November, 2005


doc.: IEEE 802.11-05/1168r0

Submission

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doc.: ieee 802.11-05/1168r0 submission november, 2005 yao zhonghui, huawei slide 1 802.11u proposal...

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