5G网络用户平面的数据包级韧性

5G网络中面向超可靠低时延通信（URLLC）的日益增长需求 necessitates enhanced resilience mechanisms to address user plane failures caused by outages, hardware defects, or software bugs。为了实现超可靠通信，重要方面是数据包的冗余传输，正如 3GPP Release 18 中所强调的。本文探索了利用数据包复制、消除和排序功能（PREOF）在私有5G环境中实现1+1路径保护。通过扩展现有5G组件，引入数据包级冗余和将排序机制卸载到外部服务器，所提出的方法确保在故障情况下数据包损失最小。 presented a conceptual integration of redundant paths and programmable elements, with considerations for deployment in existing 5G infrastructures and the trade-offs of latency versus enhanced traffic engineering. 未来工作旨在使用开源5G核心、P4-based hardware and offloading technologies like DPDK and eBPF 进行实际实现评估。