Philosophy & key design principles of BcN as an enhanced NGN

Existing Internet has problem in many areas such as reliability, service availability, and manageability. Active research has been done to solve this problem. In Korea, BcN was developed to solve the well known Internet problem and to achieve the fixed-mobile convergence services. This paper explains the philosophy and design principles of BcN architecture. We first explains the background of BcN activities and its key result of BcN. We then also introduce the design principle of BcN architecture. We also present the overview of the BcN architecture and briefly describe the issues and our approaches.