1. ITKS540 Fall 2008University of Jyväskylä ITKS540 Introduction to mobile technology and business Jani Kurhinen Fall 2008

2. ITKS540 Fall 2008University of Jyväskylä Next Generation Networks Not a networking technology –Concept for unifying network services. Need to converge and optimise the operating networks Expansion of digital traffic –increasing demand for new multimedia services, –increasing demand for mobility...

3. ITKS540 Fall 2008University of Jyväskylä Next Generation Networks Work is carried by ITU-T’s NGN-Global Standards Initiative (NGN-GSI) NGN-GSI Objectives and Goals: –to address the market needs for NGN standards –to produce global standards for NGN –to further strengthen the ITU-T’s leading role amongst the groups in NGN standard work –to keep visibility of the work spread between different technical groups in ITU-T

4. ITKS540 Fall 2008University of Jyväskylä Next Generation Networks ITU-T activities: –architectures, –interface specifications and –implementation guidelines.

5. ITKS540 Fall 2008University of Jyväskylä Next Generation Networks Packet based connectivity –A packet is a small piece of data with payload and control data. QoS enabled Services independent from technology.

6. ITKS540 Fall 2008University of Jyväskylä Evolution of Networks to NGN Interoperability with existing networks. Continuation of existing networks. Enabling the implementation of new capabilities in parallel. Evolutionary process –Not all networks will start from the same point.

7. ITKS540 Fall 2008University of Jyväskylä Quality of Service The basic criterion is subjective user satisfaction. –speed, accuracy, reliability, and security Parameters that can be directly observed and measured –at the point at which the service is accessed. –both sides: users and network providers.

8. ITKS540 Fall 2008University of Jyväskylä Interoperability NGN will involve a broad series of protocols –service and network levels Interoperability between different systems and networks.

9. ITKS540 Fall 2008University of Jyväskylä Security Security issues interrelate with –architecture, –QoS, –network management, –mobility, –charging and payment.

10. ITKS540 Fall 2008University of Jyväskylä Generalized Mobility Users and devices have the ability to communicate and to access services irrespective of change of location or technical environment. Service availability may depend on several factors: –including access network capabilities, service level agreements between the user’s home network and visited networks, etc..

11. ITKS540 Fall 2008University of Jyväskylä Generalized Mobility Ability to communicate from various locations using a variety of terminal equipment –with or without service continuity, –while in transit, –while changing access means.