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IEEE 802.21 MEDIA INDEPENDENT HANDOVER

DCN: 21-06-0762-00-0000

Title: Ambient Networks

Date Submitted: Sep, 19, 2006

Presented at IEEE 802.21 session #16 in Melbourne

Authors or Source(s):

  E. Hepworth, R. Giaffreda, R. Hancock

Abstract: This document provides a brief overview of the Ambient Networks project, and discusses commonalities between this work and that being carried out within IEEE 802.21.

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IEEE 802.21 presentation release statementsThis document has been prepared to assist the IEEE 802.21 Working Group. 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.

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 802.21.

The contributor is familiar with IEEE patent policy, as outlined in Section 6.3 of the IEEE-SA Standards Board Operations Manual <http://standards.ieee.org/guides/opman/sect6.html#6.3> and in Understanding Patent Issues During IEEE Standards Development http://standards.ieee.org/board/pat/guide.html> 

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Introduction

• Project data

• Part of EU 6th FP

• Start: 2004-01-01

• Duration: 3 years so far

• 3 phases

• 44 legal partners:• Vendors • Operators• Academia

• Coordination: Ericsson AB

• Project data

• Part of EU 6th FP

• Start: 2004-01-01

• Duration: 3 years so far

• 3 phases

• 44 legal partners:• Vendors • Operators• Academia

• Coordination: Ericsson AB

Progress Highlights

• Key concepts have been identified

• Carried into relevant standardisation groups:

• IETF• 3GPP• IEEE?

Progress Highlights

• Key concepts have been identified

• Carried into relevant standardisation groups:

• IETF• 3GPP• IEEE?

Ambient Control Space

Ambient Connectivity

2.5 G

Fixed3G

WLAN 4GCorporate

Services Services

PAN

Personal

HAN

Home

CAN

Community

VAN

Vehicular

Project Goals

• Easy and dynamic composition of disparate networks

• Adaptive and self configuring mobile network components

• Comprehensive integrated security framework

• Validating the Ambient networks concept

Project Goals

• Easy and dynamic composition of disparate networks

• Adaptive and self configuring mobile network components

• Comprehensive integrated security framework

• Validating the Ambient networks concept

Addressed areas

• Architecture

• Multi-access

• Composition

• Mobility

• Media Delivery

• Context Management

• Security

• Network Management

Domain Management

Mobility

Multiaccess

MediaDelivery

ContextProvisioning

SecurityAmbient

ConnectivityConnectivity

ControllerDomain

Management

Mobility

Multiaccess

MediaDelivery

ContextProvisioning

SecurityAmbient

ConnectivityConnectivity

Controller

Network A

Network BNetwork

A+B

Ambient Service InterfaceASI

Ambient Network InterfaceANI

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Ambient Network PhasesPhase 1 Phase 2 Phase 3

Establishing the Ambient Networks

Concept and its Feasibility

Technology Development

System SynthesisWork-Areas

IV: Prototyping

and Validation

Phase 1 Phase 2 Phase 3

I: Concepts and

Architecture

I: Concepts and

Architecture

II: Key II: Key Technical ProblemsProblems

III: Business Interfaces and

Commercial Viability

III: Business Interfaces and

Commercial Viability

Establishing the Ambient Networks Concept and its

Feasibility

Technology Development

System SynthesisWork-Areas

IV: Prototyping

and Validation

Concepts &Architecture Design

Concepts &Architecture Design

Architecture:Scalability, Evolvability

Architecture,StandardsArchitecture:

Architecture,Standards

Usability/NetworksTest Cases

Usability/NetworksPrototypes

Business Feasibility Business Interfaces Market Dissemination

Optimisation forPerformance

and Deployment

Detailed Specification,Technical Development,

Performance

Feasibility,Functions of ANControl Space

Integration across WWI,

Validation,Market

Dissemination

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Project Collaboration within WWI

Validation

Migration

User acceptance

Reconfigurability

E2R II

MobiLife

SPICE

Ambient Networks II

Winner II

System interfaces

Business models

Communication space

Generic service environment

Service platform

Networking andMobility management

Wireless and wired

Devices andCommunication end systems

access networksWir

eles

s W

orl

d I

nit

iati

ve

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The Problem…

Ambient Control Space

Ambient Connectivity

2.5 G2.5 G

FixedFixed3G3G

WLANWLAN4G4GCorporateCorporate

ServicesServices

Ambient Networks:- Common Control Services- Networks at the Edge - Scalable Auto-configuration

PAN

Personal

VAN

Vehicular

HAN

Home

CAN

Community

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The Claim…

Dynamic merging of heterogenous networks & network resources

..solve the problems

AmbientNetwork Interface

AmbientService Interface

Domain Management

Mobility

Multiaccess

MediaDelivery

ContextProvisioning

SecurityAmbient

ConnectivityConnectivity

ControllerDomain

Management

Mobility

Multiaccess

MediaDelivery

ContextProvisioning

SecurityAmbient

ConnectivityConnectivity

Controller

Network A Network BNetwork

A+B

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AN Concepts

• The AN architecture is built on three major innovations:

• The concept of a single, universal type of networking entity, the Ambient Network (AN)

• Consequently, a single universal networking reference point, the Ambient Network Interface (ANI)

• A set of naming and identification capabilities, independent of the underlying infrastructure

Ambient

Network

Ambient

NetworkANI

Exchange of messages

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An Ambient Network

AmbientServiceInterface

AmbientConnectivity

Domain Management

Mobility

Multiaccess

MediaDelivery

ContextProvisioning

Security

ConnectivityController

AmbientNetwork Interface

AmbientNetwork Interface

AmbientResourceInterface

Multi-Operator Interfaces

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Phase 2 Project Structure

Technical Coordination and Business Models

Mobility Management

Context, Policy and Network Management

Connectivity and Dynamic Internetworking

Service-aware AdaptiveTransport Overlays

Composition and CompensationANI

Mig

ration

& S

tand

ardisatio

n R

oad

map

Secu

rity

WP-H

WP-A

WP-B

WP-D

WP-E

WP-F

WP-G

WP-C

ASI

Multi-AccessARI Nam

ing

Arch

itecture

Integration&

Verification

Technical Coordination and Business Models

Mobility Management

Context, Policy and Network Management

Connectivity and Dynamic Internetworking

Service-aware AdaptiveTransport Overlays

Composition and CompensationANIANI

Mig

ration

& S

tand

ardisatio

n R

oad

map

Secu

rity

WP-H

WP-A

WP-B

WP-D

WP-E

WP-F

WP-G

WP-C

ASIASI

Multi-AccessARIARI Nam

ing

Arch

itecture

Integration&

Verification

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Areas relevant to IEEE 802.21

• WP-B: mobility management• Has developed advanced trigger delivery and processing

functionality• Supports filtering, aggregation and delivery of triggers• Users can request triggers they are interested in, and also

provide clues as to how they should be processed

• WP-D: Context, Policy and Network Management• Is investigating information bases to support AN

functionality• Part of this includes information to support handover

decisions• Concept of an Ambient Network Information Service • The triggering functionality is considered as a “context

provider”

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The Ambient Network Information Service Infrastructure

L3L2

Timeline

today

GSM

RR-Mgmt

“simple”voice service

handover

Timeline

MIP (same device)

3G B’toothWiFi

“clunky”data service

handover

IP

SIP, IMS (between devices)

3G

WiMAX

WiFi

CostQoS

Capab

Sec

802.21

“enhanced”data service

handover

3G WiMAXWiFi

Cost

QoS

Perf

Sec

ANISI

“effective”data service

handover

static IEs

dynamic IEsmeans to

support it

what info

supported

service

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How AN plans to achieve the objective

• More dynamic IEs need appropriate infrastructure support for information management

• Ambient Networks Information Service Infrastructure• distributed database with optimised data dissemination

algorithms• allows for fast retrieval and fast update of dynamic information

• dynamic trigger management• allows for fast and personalised notification of trigger changes

• aggregation of information• allows for service specific IEs (i.e. is this network currently good for this

service?) as well as for traffic reduction and flexibility• security and access control to IEs

• allows phased disclosure of knowledge as authentication steps take place (i.e. L2 attach – access to limited knowledge, L3 attach – access to more detailed knowledge)

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Focus on ANISI – the Ambient Networks Information Service Infrastructure

– Carry out data translation to address diverse nature of managed information as well as migration

• Inclusive of pre-processing components– Carry out data fusion for common purposes

DHT lookups

P2P exchange of info

src

sink

• Distributed storage capability– two-tiered to address scalability, ability to cross

administrative domains (AN feature), secured for access control

– Carry out filtered trigger notification

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What advantages does it bring

• To the end-user• ability to make more intelligent and efficient (handover)

decisions based on current context for surrounding networks• opportunity to use more innovative services that seamlessly

“survive” over heterogeneous networks• in the event of component failure, available knowledge

allows the user to infer what went wrong

• To the network operator• more accurate monitoring of resource usage• opportunity for corrective actions to balance resource usage

and customer satisfaction

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Conclusions in a Nutshell

Link Layer TriggersState Change

PredictiveNetwork Initiated

Network InformationAvailable NetworksNeighbor MapsNetwork Services

Handover CommandsClient Initiated

Network InitiatedVertical Handovers

802.21

Background

AN Triggers

Network context

More innovative

services for the userOptimised usage of

resources for operators

Ambient Networks

contribution

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Next Steps

• Ambient Networks has a number of concepts and ideas that we would like to bring to IEEE 802.21 for comment or inclusion in your standard

• How should this proceed?• Need to work together to identify exactly where AN

concepts provide value to IEEE 802.21• What are IEEE 802.21 plans beyond finalisation of first

draft?