基于C-CMTS上行信噪比自动监测的方法

A Method for Automatically Monitoring Signal-To-Noise Ratio Based on C-CMTS Uplink

广电网络系统中,有线宽带网络接入系统是基于C-DOCSIS标准来设计的。系统由前端设备C-CMTS、HFC网络、用户设备CABLE MODEM组成,这种系统在数据传输上采取上行、下行链路分离的方式,在网络故障诊断处理上有一定的难度。根据维护过程中遇到的问题,针对上行链路,提出一种基于自动化的远程维护方法。该方法不仅提供数据准确,方便维护人员快速进行故障诊断及处理,也确保了设备在维护过程中的安全性,同时减少人力、物力、时间的支出。经过测试,本方法切实可行,取得超预期效果,已投入使用。

Wired broadband network access system is designed based on C-DOCSIS standard in Guangxi Radio and Television Network system. This system is composed of C-CMTS, HFC network, and CABLE MODEM. It adopts uplink and downlink separation in data transmission, thus it is difficult to do network fault diagnosis and treatment. In this paper, according to the problems in maintenance and aimed at uplink, a remote mainte- nance scheme based on automation is proposed. The scheme not only provides accurate data, but also is con- venient for the maintenance personnel to carry out the fault diagnosis and treatment and ensure the security of the equipment in using. At the same time, this scheme reduces the cost of manpower, material resources, and time. This mehod is proved practical, and can yield desired effect, thus it has come into use.