The use of in-band full-duplex (FD) enables nodes to simultaneously transmit and receive on the same frequency band, which challenges the traditional assumption in wireless network design. The full-duplex capability enhances spectral efficiency and decreases latency, which are two key drivers pushing the performance expectations of next-generation mobile networks. In less than ten years, in-band FD has advanced from being demonstrated in research labs to being implemented in standards and products, presenting new opportunities to utilize its foundational concepts. Some of the most significant opportunities include using FD to enable wireless networks to sense the physical environment, integrate sensing and communication applications, develop integrated access and backhaul solutions, and work with smart signal propagation environments powered by reconfigurable intelligent surfaces. However, these new opportunities also come with new challenges for large-scale commercial deployment of FD technology, such as managing self-interference, combating cross-link interference in multi-cell networks, and coexistence of dynamic time division duplex, subband FD and FD networks.
翻译:使用带内全双工(FD)技术使得节点能够在同一频段同时发送和接收信号,这挑战了无线网络设计的传统假设。全双工技术提高了频谱效率和降低了延迟,这两个方面推动着下一代移动网络性能的期望。在不到十年的时间里,带内全双工从研究实验室的演示到标准和产品的实现,为利用其基础概念提供了新的机会。其中一些最重要的机会包括使用全双工技术使无线网络能够感知物理环境、集成感知和通信应用、开发集成接入和回程解决方案,以及与由可重构智能表面提供动态信号传播环境的智能设备合作。然而,这些新机会也带来了新的挑战,如如何管理自干扰、在多基站网络中应对交叉链路干扰和动态时分双工、子频带全双工和全双工网络的共存等。