Norbert Niebert, Andreas Schieder, Henrik Abramowicz,Christian Prehofer, Holger Kart
Ambient Networks projects, EU’s 6th Framework Programme
2005.11.14
Jongsoo Lee ([email protected])
Ambient Networks
An Architecture for Communication Network Beyond 3G
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Content
Introduction
Previous efforts
Ambient Network From All-IP networks to Ambient Networks How to build Ambient Networks Ambient Networks in detail
Conclusion
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IP is the common ‘lingua franca’ Divergences in the network control layer
For services like VPN, security, mobility, QoS, …
Ambient Network Provide a domain-structured, edge-to-edge view
for the network control Allow the agreement for co-operation between
networks
Introduction
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To solve the deficiencies of the Internet
Separating the Internet into domains Domain : higher logical level interconnected to
build the Internet Overlay networks
Network reliability, Different routing paradigms, …
Control of larger networks aren’t conclusively addressed.
Previous efforts
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IP2
IP based IMT network platform by NTT DoCoMo Connectivity and control functions are separated All control functions are grouped into
־ Network Control Platform (NCPF)
־ Service Support Platform (SSPF)
Requirements identified by IP2
Support of large multimedia traffic Efficient mobility and diversified radio accesses Seamless service provisioning and open interface
Previous efforts
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Separation between transport and control
A layer for connecting different networks
The control functions already identified and isolated by All-IP networks
→ Ambient Control Space : a well defined set of required control functions
From All-IP to Ambient Networks
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From All-IP to Ambient Networks
How ambient networks extend All-IP networks
Network Composition The dynamic, instant composition of networks Not only basic addressing and routing To function across operator and technology
without user involvement
Example
.
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From All-IP to Ambient Networks
Mobility Intra-domain mobility within a static network Roaming solution across domain boundaries Integrating localised communications Security issues of inter-domain operation
Heterogeneity Integration the capabilities of different
technologies to and end-to-end, seamless and secure solution for the user
QoS and multimedia delivery
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How to build Ambient Networks
The lack of commonly available and configurable control functions, dependence on network technology and owership
Design principles Open connectivity and open networking functions Self-composition and self-management Can be added to existing networks
.
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Ambient Control Space
Ambient Control Space (ACS) introduce to encompass all control functions in a certain network domain
Ambient Network : ACS together with a connectivity network Well defined control interfaces It provides at least a subset of the ACS functions It can be dynamically composed of several other
Ambient Networks
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Ambient Network Interfaces
ACS spanning several domains and always only a single homogenous ACS is visible to external entities
Standardised interface Ambient Network Interface Ambient Service Interface
Scalability & Universality
.
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Ambient Media Delivery Overlay
Support ambient multimedia services Integrating various end-devices and access
technologies Increasing service performance and end-user
convenience
MediaPorts Media routing
־ Multi-path־ New routing metric
Caching Adaptation
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Generic Link Layer Dynamic selection and configuration of different radio access
technologies Allow cost-effective data transmission based on service
requirements
Multi-radio resource management functions Allow coordinated allocation of heterogenous types of radio
resources Perform seamless and efficient radio protocol reconfiguration for
dynamic changes of radio access technologies
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Conclusion
Starting from the current All-IP network
Co-operations between networks is a key
Instant network composition to allow rapid adaptation of the network topology
The Ambient Control Space turning today’s networks into Ambient Networks
