光移动回程小蜂窝面临的挑战及解决方案

Light Mobile Challenges and Solutions Facing Small Cell Backhaul

随着移动宽带服务需求不断增加,需要运营商提供更多的无线接入网络功能。LTE和小蜂窝可提供解决无限覆盖和容量的方案。然而,回程技术在CAPEX方面昂贵,运营成本及传统的解决方案无法提供必要的结合能力和成本效率。文中定义了一个Q带点对多点的回程架构,重点介绍了在构建移动回程和无线接入网络框架中提出的萨拉班德结构,其是一种具有成本效益的网络结构,可提供多千兆能结合在Q带传输一个点对多点毫米波传输技术。此外,文中除了给出网络结构的定义外,还描述了节点的密钥类型,包括萨拉班德具体结构。

Small cell optical backhauling brings forth new challenges and opportunities in connecting radio ac-cess to service edge. These relate in particular to macro cells and optical distribution networks, network demarca-tion, control and management architectures, and convergence with fixed broadband access. Demand for mobilebroadband services is constantly increasing, requiring operators to provide more and more capacity from their radioaccess networks. LTE and small cells can offer a promising solution to provide almost unlimited coverage and capaci-ty. However, backhaul technologies can be expensive in terms of CAPEX, and none of the traditional solutions pro-vides the necessary combination of capacity and cost-efficiency. This paper defines a Q-band point to multipointbackhaul architecture that provides muhi-gigabit capacity in a cost-effective manner, with emphasis on the architec-ture for future mobile backhaul and access wireless networks asject, offering muhi-gigabit capacity in a cost-effective mannermillimeter wave （mm-wave） technology in the Q-band. Apartcomprising the SARABAND architecture is described.in the framework of the SARABAND pro-by combining point to muhipoint transmissions andfrom the network definition, the key type of nodes