In the radio access network (RAN) infrastructure, fronthaul links territorially disperse remote units (RUs) to distributed units (DUs) in regular or open RAN. With the fifth generation (5G) rollout worldwide and the active research on technologies beyond 5G, fronthaul has become a critical part of RAN to balance throughput, delay, reliability, and security. Based on a group of Tier 1 operators' insights on 5G deployment, a recent technology analysis report expects the 5G fronthaul transmission market to reach more than US$2 billion in revenue by 2024, almost triple the current rollout.

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客座社论：5G 及更高版本的增强前传


在无线接入网络 (RAN) 基础设施中，前传链路将地域上分散的远程单元 (RU) 链接到常规或开放 RAN 中的分布式单元 (DU)。随着第五代 (5G) 在全球范围内的推出以及对 5G 以外技术的积极研究，前传已成为 RAN 平衡吞吐量、延迟、可靠性和安全性的关键部分。根据一组一级运营商对 5G 部署的见解，最近的一份技术分析报告预计，到 2024 年，5G 前传传输市场的收入将达到 20 亿美元以上，几乎是当前部署的三倍。