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在CMMB网络建设初期,大部分网络建设均利用广电公司的铁塔资源。在后续的单频网建设过程中,采用中国移动公司的基站和铁塔资源越来越多,因此就需要考虑到铁塔的承重、风阻、干扰等客观因素。同时在节目源传输中,传输路由带宽制约着能容纳的节目数量。宽带IP微波具有带宽选择面广、设备重量轻、传输距离远等优点既满足了铁塔承重等一些客观条件的限制,也能够担负起信号传输的任务。本文阐述了宽带IP微波在CMMB节传路由搭建过程中的应用和实践。
In the early stages of CMMB network construction, most of the network construction companies are using radio tower resources. In the following single frequency network construction process, using China Mobile’s base station and tower resources more and more, so you need to take into account the tower’s load-bearing, wind resistance, interference and other objective factors. At the same time in the program source transmission, transmission routing bandwidth constraints can accommodate the number of programs. Broadband IP microwave has the advantages of wide bandwidth selection, light weight and long transmission distance, which not only meets some objective conditions such as load-bearing capacity of the tower, but also can perform the task of signal transmission. This article expounds the application and practice of broadband IP microwave in CMMB node routing.