光纤入户万兆IP广播方案探讨

10 Gigabit IP Broadcast Project of FTTH

为了解决传统广播电视网频道规划数受空间无线信道影响,高清或3D电视受带宽制约和光接收机下电缆网射频指标的问题,实现前端对原TS流进行IP化,传输信号由调制到载频上的TS流信号演进到IP基带信号,按照广播方式传输IP基带信号,满足入户广播带宽为万兆的需求。结合广播网、数据网和城域网的接入现状,对前端广播电视系统和光纤接收终端电路进行改造优化,提出一种新型广电下光纤入户万兆IP广播系统的建设方案,采用PON技术,达到万兆广播加PON入户的接入。

In order to solve the problem that traditional Broadcast TV network about programming channels are influenced by the space of wireless channel or high-definition and 3D television is constrained by bandwidth and the RF test of cable network in optical receiver, this paper proposes a method that improve the broadcasting bandwidth to 10 gigabit. On one hand, the transport stream must be IP-based, and the frequency carrying signals will be modulated to IP baseband signal; on the other hand, IP baseband signal must be transporting in the way of broadcasting. Combine with the access condition of broadcasting network, data network and metropolitan area network, come up with a 10 Gigabit IP Broadcast Project of FTTH in the new age of Broadcasting and TV. The project adopts PON technology, and optimizes broadcast television system and fiber optic receiving terminal circuit to achieve the goals of 10 gigabit IP broadcast and PON access.