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随着数据多媒体业务的蓬勃发展,基于电路交换的传统语音网正面临着严峻挑战。在此背景下,网络的可持续发展性成为业界关注的焦点,下一代网络(NGN)由此应运而生。本文旨在对NGN的基本技术及演进发展作点探讨,希望能起到抛砖引玉的作用。对于一种新观念与技术的认识,一段时间过后总能发现之前的弊病,无须回避。
With the booming data multimedia services, traditional voice networks based on circuit switching are facing severe challenges. In this context, the sustainable development of the network has become the focus of the industry, resulting in the Next Generation Network (NGN). The purpose of this paper is to explore the basic technology and evolution of NGN, hoping to play a valuable role. For a new concept and technology awareness, after a period of time can always find the shortcomings before, without evasion.