ITKS540 Introduction to mobile
technology and business
Jani Kurhinen
Fall 2008
Fall 2008
University of Jyväskylä
ITKS540
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...
Fall 2008
University of Jyväskylä
ITKS540
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
Fall 2008
University of Jyväskylä
ITKS540
Next Generation Networks
• ITU-T activities:
– architectures,
– interface specifications and
– implementation guidelines.
Fall 2008
University of Jyväskylä
ITKS540
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.
Fall 2008
University of Jyväskylä
ITKS540
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.
Fall 2008
University of Jyväskylä
ITKS540
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.
Fall 2008
University of Jyväskylä
ITKS540
Interoperability
• NGN will involve a broad series of
protocols
– service and network levels
• Interoperability between different systems
and networks.
Fall 2008
University of Jyväskylä
ITKS540
Security
• Security issues interrelate with
– architecture,
– QoS,
– network management,
– mobility,
– charging and payment.
Fall 2008
University of Jyväskylä
ITKS540
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..
Fall 2008
University of Jyväskylä
ITKS540
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.
Fall 2008
University of Jyväskylä
ITKS540