Upcoming beyond fifth generation (5G) communications systems aim at further enhancing key performance indicators and fully supporting brand new use cases by embracing emerging techniques, e.g., reconfigurable intelligent surface (RIS), integrated communication, localization, and sensing, and mmWave/THz communications. The wireless intelligence empowered by state-of-the-art artificial intelligence techniques has been widely considered at the transceivers, and now the paradigm is deemed to be shifted to the smart control of radio propagation environment by virtue of RISs. In this article, we argue that to harness the full potential of RISs, localization and communication must be tightly coupled. This is in sharp contrast to 5G and earlier generations, where localization was a minor additional service. To support this, we first introduce the fundamentals of RIS mmWave channel modeling, followed by RIS channel state information acquisition and link establishment. Then, we deal with the connection between localization and communications, from a separate and joint perspective.
翻译:第五代(5G)之后的通信系统旨在进一步加强关键业绩指标,并通过采用新兴技术,如可重新配置的智能表面(RIS)、综合通信、本地化和遥感以及毫米Wave/THz通信等,充分支持新的品牌使用案例。 收发机广泛审议了由最先进的人工智能技术增强的无线情报,现在认为该模式通过RIS转向对无线电传播环境的智能控制。在本条中,我们主张,为了充分利用RIS、本地化和通信的全部潜力,必须紧密结合。这与5G和前几代人形成鲜明对比,在后几代人之间,本地化是一项小的附加服务。为了支持这一点,我们首先引入了RISmmWave频道模型的基础,随后是RIS频道国家信息获取和链接建立。然后,我们从单独和共同的角度处理本地化与通信之间的联系。