面向下一代移动通信的前传网络关键技术

Key Technologies for Fronthaul Network in Next-Generation Mobile Communication

下一代宽带移动通信的容量相对5G通信提升百倍至千倍,这对支撑其发展的前传光通信网络的物理基础提出了巨大的挑战。系统回顾和梳理了移动前传网络的需求、技术和实现架构等。以光纤无线融合接入为基础,重点针对数字前传技术、模拟前传技术和数模结合前传技术3类移动前传架构,围绕其网络架构、关键技术和未来发展方向进行了深入的分析和探讨,并对未来前传网络关键技术进行展望。本研究可为未来移动前传网络的研究提供参考。

The next-generation broadband mobile communication is expected to increase capacity by hundreds to thousands of times com⁃pared with 5G communication,posing significant challenges to the physical foundation of the fronthaul optical communication network that supports its development.A systematic review of mobile fronthaul networks is provided,including their requirements,technologies,and implementation architectures.Furthermore,three types of mobile fronthaul architectures based on radio-over-fiber access are highlighted:digital fronthaul technology,analog fronthaul technology,and hybrid digital-analog fronthaul technology.Then the network architectures,key technologies,and future development directions are discussed,offering valuable insights and references for the research on the mobile fron⁃thaul networks of future communication.