移动前传网络是C-RAN（集中式/云无线接入网）技术中的重要部分。随着现代无线接入网络的发展演进，用户带宽需求的快速增长对网络的传输速率提出了更高的要求。文章回顾了移动前传网络的基本内容，分析了前传网络需要满足的各项需求，并对当前提出的各种前传网络的解决方案进行了详细的介绍。

Mobile fronthaul is an important part in C-RAN. With the development and evolution of modern radio access network, the rapid growth of user demand for bandwidth sets a higher requirements for network transmission rate. This paper firstly review the basic components of mobile fronthaul and C-RAN. Then the requirements of mobile fronthaul are analyzed in various aspects. Finally, we illustrate present different fronthaul solutions in detail.