IP Design for Mobile Networks

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Cisco Press | 2009
552 pages
PDF
6,5 MB

Introduction
The cellular world, for much of its history, has focused on circuit-switched voice and simple
text messaging as its two primary applications. Cellular technology is tremendously
successful, with over half the world’s population being mobile telephony subscribers. At
the same time, the Internet revolution has had a profound impact on the diversity of services
accessible over IP-enabled networks, with IP now recognized as the fundamental
building block for all next-generation communication networks.
The next step in the evolution of the Internet will be to make it available anytime and
anywhere. This will require the convergence of the cellular world and the Internet. This
convergence is being driven by a host of powerful new mobile devices, high-speed mobile
networks, compelling applications, and flat-rate all-you-can-eat billing plans.
IP is now impacting all aspects of the mobile operator’s network, from radio bearer support
through transmission and service delivery capability. Indeed, the various definitions
for the next generation of mobile networks all align around an “all-IP” vision, providing
purely packet-switched capabilities and solely supporting IP services.
End-to-end IP provides the flexibility to cost-effectively deliver services and applications
that meet users’ changing needs.
As today’s mobile networks migrate toward “All-IP,” with various interim steps along the
way, it is important to educate those who are focused on the evolving mobile technologies
on proper IP design theory and the fundamental role IP has in their next-generation
mobile networks. Tomorrow’s RF engineers, mobile network designers, and system architects
will be expected to have an understanding of IP fundamentals and how their role in
delivering the end-to-end system is crucial for delivering the all-IP vision.
This book seeks to focus on the transition of the mobile network from today’s circuitswitched
technologies toward a future where IP is the fundamental building block integrated
into all aspects of the network. This IP transition begins with function-specific
migrations of specific network domains and ends with an end-to-end IP network for
radio, transport, and service delivery. This book looks at the transition from both the
standards and design theory perspective.

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