Operators worldwide are striving to deploy new solutions that can adequately address the demands being placed on them by market and by technological developments:
Demands from businesses for flexible Virtual Private Network (VPN) solutions
Demands from consumers and governments for broadband access to every home
Demands from investors include increased profitability.
As a means to address these challenges and market demands, a new vision is gaining momentum in the telecommunications industry—the vision of one network for all services—a next generation network that delivers:
- The operational efficiency and cost reduction of a common, consistent infrastructure
- Greater speed to market for a much greater variety of services
This evolution to next generation networks is built on a foundation that requires operators to evolve their infrastructure in 3 areas; the core, the access and the service provision/control platform .
Indeed, the core needs to evolve to a next generation core which is in substance a converged IP infrastructure capable of carrying voice, video and data services. This is basically the evolution from a “one network - one service” approach to a “one network -many services” one.
The access needs to evolve to a next generation access reducing any bandwidth bottlenecks that may exist today at the access level: this evolution is not related to any one single access technology but to characteristics of an access infrastructure capable in providing higher and scalable bandwidth, better symmetry and lower contention.
Finally, the management and provision of services needs to evolve to a next generation service control capable in providing features such as Identity Management, Policy Management, Mobility Management, Dynamic Session Management – allowing the operators to provide personalized services on a per user basis and develop innovative services.
Source: On the technology, business models and regulatory aspects of NGN, ETP, 2006
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