1. Norbert Niebert, Andreas Schieder, Henrik Abramowicz, Christian Prehofer, Holger Kart Ambient Networks projects, EU’s 6 th Framework Programme 2005.11.14 Jongsoo Lee (jslee@mmlab.snu.ac.kr)jslee@mmlab.snu.ac.kr Ambient Networks An Architecture for Communication Network Beyond 3G

2. 2/14 Content Introduction Previous efforts Ambient Network From All-IP networks to Ambient Networks How to build Ambient Networks Ambient Networks in detail Conclusion

3. 3/14 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

4. 4/14 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

5. 5/14 IP 2 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 IP 2 Support of large multimedia traffic Efficient mobility and diversified radio accesses Seamless service provisioning and open interface Previous efforts

6. 6/14 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

7. 7/14 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.

8. 8/14 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

9. 9/14 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.

10. 10/14 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

11. 11/14 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.

12. 12/14 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

13. 13/14 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

14. 14/14 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