【摘要】 文章认为新一代无线回传承载网将需要提供更高的传输带宽、更多的用户数量以及更好的服务质量才能满足3G技术的需求,无源光网络具有带宽大、部署灵活、多业务承载能力强等特点,适合建设新一代无线回传承载网。文章给出了一种基于无源光网络(PON)的无线回传网络结构。在该网络中,光线路终端(OLT)放置在中心局,与无线核心网络连接;光网络单元(ONU)放置在移动基站处。无源光分路器和光缆构成OLT和ONU之间的无源光纤传输网络。更多还原

【Abstract】 To meet the demands created by 3G technology,next-generation wireless backhaul networks require higher bandwidth,more users,and better service quality. Passive optical networks(PONs) have large bandwidth;they can be flexibly deployed;and they are able to carry multiple services. In this paper,we discuss the architecture of a wireless backhaul based on PON. In such a network,the optical line terminal is placed in a central office and connects with the wireless core network. The optical network unit is placed in the mobile station. A passive optical splitter and fiber optic cable constitute a PON between the OLT and ONU.更多还原