tailieunhanh - Service Delivery Architecture

Carriers are faced with several critical decisions regarding upgrading their networks from traditional circuit-switched services to supporting the increasing array of broadband services customers are demanding today. The ability to deliver a combination of voice, video, and data services will require many modifications to existing infrastructures, challenging every service provider to seek ways to make this migration to broadband as painless as possible in terms of cost, time, and ensuring a future-proof network | Next Gen NETWORKS Service Delivery Architecture for OSP Networks Service Delivery Architecture for OSP Networks Carriers are faced with several critical decisions regarding upgrading their networks from traditional circuit-switched services to supporting the increasing array of broadband services customers are demanding today. The ability to deliver a combination of voice video and data services will require many modifications to existing infrastructures challenging every service provider to seek ways to make this migration to broadband as painless as possible in terms of cost time and ensuring a future-proof network. There are both challenges and trade-offs in upgrading existing voice networks to support broadband services. Most importantly each carrier must decide how far to drive fiber into the network and what if any portion of the existing copper plant can still be used. ADC offers solutions that will allow for any business model whether taking fiber to a node FTTN or directly to the customer premises FTTP . Depending on the carrier s business model it may not make the best sense to take fiber all the way to the customer particularly in brownfield build-outs. This makes FTTN an attractive solution for getting broadband services to customers quickly and cost effectively while still providing a smooth migration path to FTTP when it becomes necessary. This paper will provide an overview of considerations and decisions involved in upgrading legacy voice networks to broadband services. It will discuss the current attributes and limitations of today s copper technologies and how they will affect broadband service delivery. It will also provide an overview of the resectionalization process necessary to create smaller serving areas that support the higher bandwidth broadband services require. Broadband upgrade considerations While the vast majority of greenfield broadband deployments can take fiber directly to the customer premises at costs that are comparable to .