Transcript Reference model for I-centric Communications

WWRF Briefing
WG2-br4
Reference model for I-centric Communications
STRATEGIC VISION
on future research directions
in the wireless field
Stefan Arbanowski, FOKUS
[email protected]
Wolfgang Kellerer, DoCoMo Euro-Labs
[email protected]
WWRF13, Jeju, Korea, Feb. 2-3, 2005
WG2 Overall plan
• I-Centric Communications
-
???
People
VISION
Place
Knowledge
News
Food
User Model &
Ambient
Awareness
Appl. Scenarios
Personalization
Adaptation
Conflict
Resolution
Service
Deployment
Environment
Monitoring
Service
Creation
Service
Control
Service
Discovery
Service
Bundling
Personalization, Ambient awareness, Adaptation
adaptable to each individual communication space
adaptable to the environment
intelligence in the system
integrating service enablers to control and manage the
individual communication space
Money
Movie
Application Support Layer
Service Execution Layer
Service Support Layer
Ref Model
Network Control & Management Layer
IP Transport Layer
• Current state
Networks
Terminals
- 5 whitepapers available  wg2.ww-rf.org (members only)
- Next steps
- Further identification of Wireless World’ building blocks
WWRF Briefing WG2-br4 · Kellerer/Arbanowski · [email protected] · 03/2005 · WWRF13, Korea
Arch
page 2
Reference Model for future
telecommunication systems
Reference Model should take into account:
• blurring business roles
• personalized, ambient-aware, adaptive end user services
• augmented environments as part of the ubiquitous communication system
• new networking services: ad-hoc, p2p (content aware, secure, QoS aware)
• all IP: always best connected, packet switched, broadband multimedia
applications
• flexible platform supporting diff access technologies, global coverage, global
roaming
• further convergence of voice, data, and mobile communications
• new wireless links (high/low data rate, long/short range) to serve different
application domains
WWRF Briefing WG2-br4 · Kellerer/Arbanowski · [email protected] · 03/2005 · WWRF13, Korea
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Rationales for I-centric Communication
• Present telecommunication systems:
- designed for specific end systems and services (Fax for facsimile, telephone for
telephony, TV broadcasting for TV sets etc)
- are presentation oriented, each of them has its own presentation style
- Since they are generic there is no limitation of the communication space
- Consequently there is no integration at service level
- No user initiated service creation
• Human beings have limited communication spaces:
- I do not know everybody - I am not interested in everything etc.
- in general humans are interested in semantic and not in the kind of presentation of
a specific communication system
- they need telecommunication services to control, communicate, get informed, etc.
as a prolongation of their human senses
WWRF Briefing WG2-br4 · Kellerer/Arbanowski · [email protected] · 03/2005 · WWRF13, Korea
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I-centric communication systems - Rationales
All-IP COMMUNICATION
Network Penetration
CORE NETWORK
ACCESS NETWORK
HOME / OFFICE / CAR NETWORKS
PERSONAL AREA / WEARABLES NETWORKS
WWRF Briefing WG2-br4 · Kellerer/Arbanowski · [email protected] · 03/2005 · WWRF13, Korea
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Human Communication Space & Underlying Artefacts
Money
Movie
People
Knowledge
???
Place
News
Food
WWRF Briefing WG2-br4 · Kellerer/Arbanowski · [email protected] · 03/2005 · WWRF13, Korea
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I-centric Communications
• Human beings communicate with their environment:
- within a set of contexts
- objects and their causality define a context
- an object is every time part of one or many context(s)
- an object can be modified / controlled / queried
• Objects of interest:
- have to be composable
 rules for context definition
- have to be encapsulated
 object + interface
- have to be controllable
 framework
WWRF Briefing WG2-br4 · Kellerer/Arbanowski · [email protected] · 03/2005 · WWRF13, Korea
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Reference Points
Network
Provider
Retailer
Content
Provider
Money
RP
Time
Movie
Customer
Service
Provider
uses &
provides
People
…
Broker
Place
3rd party
Provider
News
Info
Movie
Time
Food
People
Place
News
Info
Food
Place
News
Info
Food
WWRF Briefing WG2-br4 · Kellerer/Arbanowski · [email protected] · 03/2005 · WWRF13, Korea
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Reference Points & Domain Models
Reference Point
Info
Administrative
Domain
Stakeholder
Food
News
Administrative
Domain
Administrative
Domain
Stakeholder
WWRF Briefing WG2-br4 · Kellerer/Arbanowski · [email protected] · 03/2005 · WWRF13, Korea
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RM for I-Centric Communications
Communication Space
User Model &
(Contexts & Objects)
Service Semantic
Personalization
Adaptation
Application Support Layer
Conflict
Resolution
Service
Deployment
Environment
Monitoring
Service
Creation
Service
Discovery
Service
Control
Service
Bundling
Business Model
Ambient
Awareness
Appl. Scenarios
Generic Service Elements
for all layers
Service Platform
Service Execution Layer
Service Support Layer
Network Control & Management Layer
IP based
Communication
Subsystem
IP Transport Layer
Networks
Wired or wireless Networks
Terminals
Devices and Communication
End Systems
WWRF Briefing WG2-br4 · Kellerer/Arbanowski · [email protected] · 03/2005 · WWRF13, Korea
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Challenges:
Business Model
Ambient
Awareness
- Service lifecycle (creation, deployment,
management, billing)
Business Model
- Mobility features – mobile service vs. mobile
user
Creation
- Intelligence inside network or terminal
Service
Discovery
- Business topology
Service
Control
- Roles, relationships, and reference points
Service
Bundling
• One business model for
Wireless World service architectures
Persona
Application S
Service Exe
Service Su
Network Control &
- Benefits for operators and users
(market value chain)
IP Transp
Netw
Term
WWRF Briefing WG2-br4 · Kellerer/Arbanowski · [email protected] · 03/2005 · WWRF13, Korea
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Challenges:
Service Semantic
nalization
Adaptation
Support Layer
ecution Layer
upport Layer
Management Layer
port Layer
Conflict
Resolution
Service
Deployment
Service
Environment
Monitoring
Personalization
• Personalized services that automatically reflect user
needs
- consensus: profile format & categories, standards to
exchange profiles & secure privacy sensitive parts
- integrate all personalization aspects
- profile learning functionality
- distributed, loosely coupled, personalization
architecture
works
minals
WWRF Briefing WG2-br4 · Kellerer/Arbanowski · [email protected] · 03/2005 · WWRF13, Korea
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Challenges:
Service Semantic
nalization
Adaptation
Support Layer
ecution Layer
upport Layer
Conflict
Resolution
Service
Deployment
Service
Environment
Monitoring
Ambient Awareness
• Development of integrated concepts and strategies for
handling situational information
• Gathering / exchanging situational information (user
activity, geo. location and mobility, physical
circumstances, etc.)
Management Layer
port Layer
• Evaluating situational information (How should services
behave in order to optimize the user experience)
works
minals
WWRF Briefing WG2-br4 · Kellerer/Arbanowski · [email protected] · 03/2005 · WWRF13, Korea
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Challenges:
Service Semantic
nalization
Adaptation
Conflict
Resolution
Service
Deployment
Service
Environment
Monitoring
Adaptation
• Applications adapting dynamically to new situations
(location, time, user needs, network and end-device
capabilities)
Support Layer
ecution Layer
upport Layer
Management Layer
port Layer
• How to translate the wishes of users, which are almost
always inaccurate, incomplete and sometimes even
contradictory, into a set of rules precise enough for
processing to be automated with sufficient reliability?
works
minals
WWRF Briefing WG2-br4 · Kellerer/Arbanowski · [email protected] · 03/2005 · WWRF13, Korea
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Challenges and Examples:
Generic Service Elements / Service Platform
nalization
Adaptation
Support Layer
ecution Layer
Conflict
Resolution
Service
Deployment
Service
Environment
Monitoring
Generic Service Elements
• Functional components which
- can be applied by different services
- can be applied to several layers
- are compliant to a Core Service Framework Model
• Examples:
-
dynamically that are provided within a certain context)
upport Layer
Management Layer
port Layer
works
minals
Service Discovery (a mechanism to discover service features
-
Service Deployment (how to deploy services in wireless
environments facing temporal unavailability of nodes etc.)
-
Service Composition (dynamic inter-working of services will help
to create and operate contexts)
-
Environment Monitoring (situational information for context
adaptation)
WWRF Briefing WG2-br4 · Kellerer/Arbanowski · [email protected] · 03/2005 · WWRF13, Korea
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Challenges and Examples:
IP based communication Subsystem
nalization
Adaptation
ecution Layer
Conflict
Resolution
Service
Deployment
Environment
Monitoring
Service
Support Layer
•
•
•
•
•
•
upport Layer
Management Layer
•
•
port Layer
works
minals
•
•
•
•
Transversal issues on cooperation (either integration or
interworking) between different Access technologies.
Broadcasting and Mobile Networking cooperation
Backward compatibility issues of "All-IP" wide area mobile
networks and the existing and emerging standards
Network Reconfigurability
Mobile Broadcasting and Multicasting
Mobility and Resource management and end-to-end QoS
techniques
Security, AAA, Charging and Billing issues
Software radio and reconfigurable RF and Baseband
architectures
Reconfigurability Management and Architectures
Active Networking
Ad-hoc / multi-hop networking
Mobile IP enhancements
WWRF Briefing WG2-br4 · Kellerer/Arbanowski · [email protected] · 03/2005 · WWRF13, Korea
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Challenges and Examples:
Wired or wireless Networks
nalization
Adaptation
ecution Layer
upport Layer
Conflict
Resolution
Service
Deployment
Environment
Monitoring
Service
Support Layer
•
•
•
•
•
•
•
•
•
•
•
•
•
Management Layer
port Layer
works
minals
•
Scenario definitions and service related traffic analyses
Concepts for NG systems
Spectrum requirements for next generation (NG) high/low speed systems
Channel modeling and propagation for NG systems
Coexistence of systems in the same frequency band
Single- and multi-carrier based air-interfaces for high mobile use
Interference aware and low power consuming MAC protocols
Air interfaces with a bit rate up to 1Gbps
Advanced smart antennas technology for NG systems
Ad hoc networks related solutions
Multi-hop wireless systems
Infrastructure based NG mobile broadband systems
Requirements for short range communication systems and radio interface
design, for addressing specific user/usage needs
Air interfaces for short-range radio communication systems (reduced mobility,
short range, with bit-rate of up to 1Gbps), addressing:
- Physical layer
- Multiple access techniques and protocols
- Cross-layer issues
- Implementation aspects
- Sensor based networks
- UWB radio systems
WWRF Briefing WG2-br4 · Kellerer/Arbanowski · [email protected] · 03/2005 · WWRF13, Korea
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WG2 Terminology
• Purpose
- Defines basic terms used to describe I-centric communications
• Definitions
-
Object
Individual Communication Space
Context, Active Context
Preferences, Ambient Information
Personalization
Ambient Awareness
I-centric Service
Generic Service Elements
Business Model
Service Platform
Ambient
Information
I-centric Service
Control &
User
Preferences
Adaptation
ObjectObjects
Object
Object
Object
WWRF Briefing WG2-br4 · Kellerer/Arbanowski · [email protected] · 03/2005 · WWRF13, Korea
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I-Centric Services
• I-centric communications describe the ability to define and to manage
contexts that are tailored to the preferences of single users, in its
individual way to interact with a communication system.
• Based on the evaluation of ‘profiles’ that describe user preferences,
service capabilities, and on sensing information about its actual
environment (context), the user can be provided with individualized
services for his actual demands.
• Self-learning capabilities are used to profile the behavior of users,
numerous services or several features of different services are combined ondemand, and appropriate terminals and conversion strategies are evaluated.
WWRF Briefing WG2-br4 · Kellerer/Arbanowski · [email protected] · 03/2005 · WWRF13, Korea
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Definitions
Object
• An object is a logical representation of hardware or software entity, or even a
representation of a certain individual, and provides well-defined services
from the perspective of an (other) individual.
Individual Communication Space
• The individual communication space of a certain individual is defined by a
set of objects this individual might want to interact with.
Context
• A context represents a certain ‘universe of discourse’. It defines relationships
and causalities of an individual to and between particular numbers of objects
of its communication space.
Active Context
• A context is active when it is adapted to a certain environment at a certain
moment in time. It defines the relationships and causalities of an individual to
a particular number of physical resources at certain a moment in time, in a
certain environment.
WWRF Briefing WG2-br4 · Kellerer/Arbanowski · [email protected] · 03/2005 · WWRF13, Korea
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Definitions (cont.)
Preferences
• Preferences are conditional choices of service characteristics of an object
depending on context and ambient information. Preferences are applied to
objects during the activation of a context.
Ambient Information
• Ambient information is information that can be collected, gathered, or sensed
from the physical environment using the objects of the individual
communication space of a certain individual.
I-centric Service
• I-centric Services define, manage, and (de)activate contexts in an individual
communication space taking ambient information and the preferences of an
individual into account. They support an adaptive, personalized, and
ambient-aware way to interact with objects in individual communication
spaces.
WWRF Briefing WG2-br4 · Kellerer/Arbanowski · [email protected] · 03/2005 · WWRF13, Korea
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Definitions (cont.)
Business Model
• A business model is a description of how an entity or a set of entities intend
to create value with a product or service. It defines the product or service, the
roles and relations of the entity, its customers, partners and suppliers, and
the physical, virtual, and financial flows between them.
Personalization
• Personalization provides the information for modeling preferences for an
individual communication space in the I-centric system.
Ambient-awareness
• Ambient-awareness is the functionality provided by an I-centric system to
sense and exchange information about the current environment, an individual
is in at a certain moment in time.
Generic Service Elements
• A GSE is a functional software component that can be used by other GSEs,
services, or applications and it is hosted by the I-centric Service platform.
GSEs provide functionalities common to different services and applications to
ease and shorten their development process.
WWRF Briefing WG2-br4 · Kellerer/Arbanowski · [email protected] · 03/2005 · WWRF13, Korea
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Credits to
• All WG2 participants who did contribute by:
- Presentations & discussions in WG2 meetings
- Providing input to white papers
- Provided input to BoV & other WG2 publications
• Telematica Instituut, TNO, DoCoMo, NEC Europe, Nokia, HIIT,
Sony, Fraunhofer Fokus, Technical University Berlin, Siemens,
University of Kassel, Ericsson, Motorola, Motorola, Lucent
WWRF Briefing WG2-br4 · Kellerer/Arbanowski · [email protected] · 03/2005 · WWRF13, Korea
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Contact
• See http://www.wireless-world-research.org/
• See http://wg2.ww-rf.org/
• mailto: [email protected]
• mailto: [email protected]
WWRF Briefing WG2-br4 · Kellerer/Arbanowski · [email protected] · 03/2005 · WWRF13, Korea
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