摘要
光传输网络是目前通信最重要的承载网络,且终端用户对新应用的需求导致业务的种类和流量不断增加,业务模式也正在发生很大的变化。PTN同步特性可以提供高精度的频率和时间输出,满足无线网络严格的时钟要求,对VoIP、实时视频等业务有优异的性能保证。
Optical transmission network is the most important carrier network for cation, the new applications lead to the increase of new business and traffic flow, and the busi ness model has also a great change. PTN provides a high-precision frequency and can meet the requirement for wireless network, VoIP, real-time video services.
出处
《北京劳动保障职业学院学报》
2013年第2期55-57,共3页
Journal of Beijing Vocational College Of Labour And Social Security
