广电城域接入网技术选择和实施建议

Choies and Implementatoin for Broadcast Television Access Network Technologies

目前广电接入网建设与改造中技术方案的选择应考虑的问题具体包括:同轴入户还是光纤入户(Cable or FTTH)、DOCSIS或C-DOCSIS的选择、EPON+EoC或EPON+LAN的选择、高频EoC或低频EoC的选择、接入网光纤网络技术的选择——EPON或GPON、接入网光网络拓扑结构的选择——FTTC/FTTZ或FTTB/FTTE,针对以上几点进行研究分析,并提出一些可供参考的意见。

At present the technical scheme of the radio access network construction and retrofit include ：coaxial to the home or fiber to the home;the choice of DOCSIS or C -DOCSIS;the choice of EPON＋EoC or EPON＋LAN;the choice of HF EoC or LF EoC;the choice of EPON or GPON , which are both fiber network tech-nology applied in access network;FTTC/FTTZ or FTTB/FTTE, which are both Optical network topology ap-plied in access network .This article analyses these hot issues and proposes several recommendations .