一种新的宽带接入技术——ADSL2/2+

A New Broad Band Accessing Technology of ADSL2/ADSL2+

针对第一代ADSL技术在实际运营中存在的覆盖距离较近、速率较低、缺乏线路测试手段等不足,提出了新型的基于ATM内核的ADSL2+接入网的改进模型,分析了这种模型的原理和合理性,研究并探讨了ADSL2/ADSL2+技术的特点,最后对该技术的应用前景作了展望。

Aimed at the shortage of nearer covering distance, lower rate, lacking line - testing instrument in ADSL, an improved model about accessing network of ADSL2 ＋ based on ATM core is brought forth in the paper. The principle and rationality of the model are analyzed, and the character is also discussed. At last, the application foreground of the technology is prospected.