Full-duplex (FD) technology is gaining popularity for integration into a wide range of wireless networks due to its demonstrated potential in recent studies. In contrast to half-duplex (HD) technology, the implementation of FD in networks necessitates considering internode interference (INI) from various network perspectives. When deploying FD technology in networks, several critical factors must be taken into account. These include self-interference (SI) and the requisite SI cancellation (SIC) processes, as well as the selection of multiple user equipment (UE) per time slot. In addition, INI, including cross-link interference (CLI) and intercell interference (ICI), becomes a crucial issue during concurrent uplink (UL) and downlink (DL) transmission and reception, similar to SI. Since most INIs are challenging to eliminate, a comprehensive investigation that covers radio resource control (RRC), medium access control (MAC), and the physical (PHY) layer is essential in the context of FD network design, rather than focusing on individual network layers and types. This article covers state-of-the-art studies, including protocols and documents from the third-generation partnership project (3GPP) for FD, MAC protocol, user scheduling, and CLI handling. The methods are also compared through a network-level system simulation based on 3-D ray tracing.

中文翻译：

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全双工网络设计的最新调查


由于最近的研究显示出全双工 (FD) 技术的潜力，因此它越来越受欢迎，可集成到各种无线网络中。与半双工（HD）技术相比，FD在网络中的实施需要从各个网络角度考虑节点间干扰（INI）。在网络中部署FD技术时，必须考虑几个关键因素。这些包括自干扰 (SI) 和必要的 SI 消除 (SIC) 过程，以及每个时隙多个用户设备 (UE) 的选择。此外，与SI类似，INI，包括交叉链路干扰（CLI）和小区间干扰（ICI），成为并发上行链路（UL）和下行链路（DL）传输和接收期间的关键问题。由于大多数 INI 难以消除，因此在 FD 网络设计中，涵盖无线电资源控制 (RRC)、媒体访问控制 (MAC) 和物理 (PHY) 层的全面调查至关重要，而不是专注于单个网络层和类型。本文涵盖最先进的研究，包括来自第三代合作伙伴项目 (3GPP) 的 FD、MAC 协议、用户调度和 CLI 处理的协议和文档。还通过基于 3D 射线追踪的网络级系统仿真对这些方法进行了比较。