为更好地实现长江水面的视频监控及突发事件发生时的语音视频信息快速有效传输，需要网络在水面的无缝覆盖，由此提出了整套宽带专网解决方案。通过研究水面覆盖模型和水面波导效应，提出了Z字形水面无线覆盖方案，同时还研究了业务流和传输方式，提出分布式核心网方案，实现分布式管理集中调度和传输本地化功能。经仿真和业务评估，本方案能够较好地满足多媒体业务覆盖质量和管理要求。%To better enforce video surveillance and fast and effective transmission of voice and video messages during emergency on the Yangtze River, seamless network coverage is necessary. Thus, the paper proposed an entire broadband network solution. Based on the propagation model over the river and waveguide effect research, a zigzag method for wireless coverage was proposed to solve the seamless coverage problem. And through the research on the data lfow and evaluation of traffic, distributed core network method was proposed to realize the function of distributed management, centralized schedule, and localized transmission network. The simulation results and evaluations of traffic lfow indicated that the solution could meet the quality requirement of coverage and management.
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