试谈有线电视网络双向化改造中的新技术

Emerging Technologies in Two-way Reconstruction of CATV Networks

为了充分利用有线电视网络的巨大带宽资源开展数据业务 ,需要对现有的网络进行双向化改造。介绍并简要分析了几种双向化改造中可能会使用到的新技术。其中 ,在接入网部分 ,介绍了DOC SIS 2 .0 ,包括协议和多址方式 ;在骨干网改造部分 ,介绍了MPLS技术。

We need to reconstruct current CATV networks to take full advantage of the huge bandwidth that could be used to carry out digital service. Some emerging technologies most likely used to reconstruct CATV networks are introduced, including new protocols(DOCSIS 2.0) , new modes of multiple access, and MPLS.