1. Next Generation Networks Convergence, evolution and roadmaps
Dr. Sathya Rao,Telscom Consulting, Berne
The NGN-I Initiative will establish the infrastructure to operate the first open environment for Research on the whole range of Next Generation Networks topics to be discussed, consensus achieved and collective outputs disseminated to the appropriate international standards bodies, for a and other organisations. This will facilitate the convergence of technologies from research projects on a world-wide basis sharing knowledge, experience and interoperability and creating common and solid grounds for the Next Generation Networks deployment and operation

2. NGN Applications Requirement

3. IP Everywhere The Internet Protocol is becoming pervasive
but it was designed over 20 years ago
More and more devices are using IP
and they require reachability
places a demand on IP address space
1 billion IP devices by 2003
requires IP routing to be scalable
IP is a convergence protocol for the evolution of next generation networks

4. Internet - the way forward
Internet today
Millions of users
Web, , low-quality audio & video
Applications adapt to underlying technology
Next Generation Network of tomorrow
Billions of users and devices
Convergence of applications and services
New technologies lead to novel applications
Building a real information society with ‘Always-on Network’
Global village a reality

5. Internet Growth Current estimates Growth of Mobile internet
300M users online worldwide, US/Europe-centric
70M hosts connected with global IP addresses
Most of these are with fixed network
Growth of Mobile internet
WAP, GPRS, EDGE, UMTS,.. With data services
Limitations of IPv4
with 32-bit addressing allows 4B hosts
but allocation has been done inefficiently
some institutions own a Class A address space
CIDR and NAT have only patched the problems

6. Networked Society IP
Different types of network infrastructures are linked through common protocol
All communication will be based on packets running on circuit, packet and wireless networks
There will be convergence at service level to reach any one from anywhere at any time

7. Fixed vs. mobile access

8. Mobile Internet will be always-on
1999
2000
2002
2001
Sessions / Month / GSM sub
(leading markets)
Usage
Mobile WWW (WAP)
Fixed WWW
WAP
GPRS
IPv6

9. NGN Requirements-IPv6 Requirements
Scalability of networks with address space,QoS and security, which are basic features of IPv6 networks
Connectivity with existing IPv4 networks is necessary
IPv6 should happen from the edges, not from the core.
Applications are important for pushing IPv6
it has to be transparent to the end user
Interoperability with IPv4 has a cost
100% interoperability is not always necessary
We need a credible transition story.

10. 3GPP standards status
Issues addressed in 3GPP Rel 5 type network i.e. fast radio via UTRAN, separation of PS and IM domains and addresses:
IP address allocation
Header compression with security
Interworking with IPv4 network
SIP VoIP (and possible multimedia)
QoS
DNS
Interworking of PS and IM domains
Roaming
Time to setup GTP tunnels
Etc

11. For Europe, it is at the same time a challenge and an opportunity
Moving towards IPv6...
Moving towards IPv6 is both a near-term and a long -term concern of network dependent businesses
equipment manufacturers
network owners
service providers
and public authorities, such as the EC.
For Europe, it is at the same time a challenge and an opportunity

12. Related projects 6INIT: IPv6 network intiative
6WINIT: Wireless IPv6 initiative
MobyDick: Fixed mobile network trials
WINE: Wireless internet
NGN Initiative
GEANT: Pan European academic network
OPTIMIST