清远广电基于IPQAM前端插入VOD点播业务传输方案

The Transmission Scheme of Inserting VOD Services into the Front Terminal based on IPQAM in Qingyuan CATV

简要介绍通过IPQAM开展VOD视频点播流程,以清远广电为例,介绍VOD在前端采用频率空间复用网络结构实现IPQAM数字电视信号的定向插播,以及IPQAM输出端口并发流的组合、分配与覆盖。

After briefly articulating Video ordering processes through IPQAM, this article, taken Qingyuan CATV as an example, introduces frequency spatial multiplexing network structure in front terminal to achieve IPQAM directional breaking of digital TV signals and the combination, distribution and coverage of the concurrent flowing of IPQAM output ports.