关于发展融合型接入网的探讨

接入网是电信网的重要组成部分。由于新技术的大量应用,使传统纯双绞线铜缆接入网逐渐被光纤接入网取代。目前的接入网主要是V5综合业务接入网,提供窄带综合业务。随着IP、多媒体业务的飞速增长,接入网进一步向宽带化和综合化方向发展,于是出现了宽窄带融合型接入网,这种网络基于统一平台提供传统/分组语音接入和宽窄带数据接入。文章针对接入网宽带化、综合化发展趋势,探讨了一种能提供宽窄带综合业务和向下一代网络(NGN)演进的融合型接入网。

Discussion on the Development of Integrated Access Network

Access network is an important component part of telecom network. Due to the fact that many new technologies are being applied, the conventional twisted-pair copper access network is gradually replaced by optical fiber access network. The current access network is mainly a V5 integrated services access network providing only narrow band integrated services. Along with the rapid growth of IP and multi-media services, access network is evolving toward wide-band and integrated access network. Thus, narrow and wide band integrated access network comes into being. This type of network is based on a unified platform which provides both conventional / packet voice access and wide band / narrow band data access. Focusing on the evolution trend of wide band and integration this text discusses an integrated access network, which can provide narrow and wide band integrated services and can eventually evolve toward NGN.