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从“信息高速公路”概念体系的提出距今已有十余年的历史,这一时期的网络通信技术可谓是突飞猛进,空前发展;伴随着光纤通信网、电信网、无线接入网的相继铺建,ADSL、HDSL、RADSL等媒体传输技术的研制开发,使越来越多的网民体验到了宽带业务的魅力,但“最后一公里”问题始终阻碍着“高速公路”的进一步延伸,VDSL技术的出现无疑又使我们以更宽阔的“路面”和流畅的入口向“高速公路”靠近一大步。
From the “information highway” concept system has been proposed for more than 10 years ago, this period of network communications technology can be described by leaps and bounds, an unprecedented development; with optical fiber communications network, telecommunications network, wireless access network in succession The research and development of media transmission technologies such as ADSL, HDSL and RADSL have enabled more and more Internet users to experience the charm of broadband services. However, the problem of “the last mile” has always hindered the further extension of the “expressway”. The VDSL technology The emergence has undoubtedly brought us closer to the “freeway” with a wider “pavement” and smooth entrance.