面向下一代移动通信的前传网络关键技术

摘要：下一代宽带移动通信相对5G通信容量提升百倍至千倍，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。

关键词：前传网络；接入网；光载无线

Abstract: The next-generation broadband mobile communication is expected to increase capacity by hundreds to thousands of times compared to 5G communication, posing significant challenges to the physical foundation of the fronthaul optical communication network that supports its development. This paper provides a systematic review and overview of mobile fronthaul networks, 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. This paper conducts in-depth analysis and discussions concerning their network architectures, key technologies, and future development directions, offering valuable insights and references for the research on the mobile fronthaul networks of future communication.

Keywords: fronthaul network; access network; radio-over-fiber