电信科学 ›› 2022, Vol. 38 ›› Issue (10): 20-35.doi: 10.11959/j.issn.1000-0801.2022278

• 专题:6G无线传输技术 • 上一篇    下一篇

面向新一代移动通信的智能超表面技术综述

高子路1, 孙韶辉2,3, 李丽4   

  1. 1 北京航空航天大学,北京 100083
    2 中信科移动通信技术股份有限公司,北京 100083
    3 无线移动通信国家重点实验室(电信科学技术研究院有限公司),北京 100191
    4 电信科学技术研究院,北京 100191
  • 修回日期:2022-10-10 出版日期:2022-10-20 发布日期:2022-10-01
  • 作者简介:高子路(1995- ),男,北京航空航天大学博士生,主要研究方向为大规模天线技术、智能超表面技术
    孙韶辉(1972- ),男,博士,中信科移动通信技术股份有限公司副总经理,无线移动通信国家重点实验室(电信科学技术研究院有限公司)高级研究人员、正高级工程师,长期从事移动通信新技术研究与标准制定工作,主要研究方向包括移动通信系统设计及多天线技术、卫星通信和定位等
    李丽(1985- ),女,电信科学技术研究院学历教育部主任,长期从事信息与通信工程、通信与信息系统、电子科学与技术等领域的硕士、博士联合培养工作

Overview of reconfigurable intelligent surface for new-generation mobile communication

Zilu GAO1, Shaohui SUN2,3, Li LI4   

  1. 1 Beihang University, Beijing 100083, China
    2 CICT Mobile Communications Technology Co., Ltd., Beijing 100083, China
    3 State Key Laboratory of Wireless Mobile Communications, China Academy of Telecommunications Technology (CATT), Beijing 100191, China
    4 China Academy of Telecommunications Technology (CATT), Beijing 100191, China
  • Revised:2022-10-10 Online:2022-10-20 Published:2022-10-01

摘要:

智能超表面(reconfigurable intelligent surface,RIS)技术是6G的潜在关键技术之一,具有低成本、低功耗和易部署等特点。通过智能地调控空间中的电磁波,RIS 可以辅助构建智能可控的无线电磁环境,从而为移动通信的发展提供一种新范式。首先,对 RIS 的基础原理、主要技术优势和应用场景进行了分析。其次,对RIS应用于通信传输中的信道估计、波束成形等关键技术进行了探讨,并给出了相关研究建议。最后,从硬件实现、算法设计和网络部署3个方面分析了目前RIS技术在实际应用中面临的主要挑战。

关键词: 智能超表面, 6G, 信道估计, 波束成形, 网络部署

Abstract:

Reconfigurable intelligent surface technology, which features low cost, low energy consumption and easy deployment, is the potential key technology of 6G.By intelligently regulating electromagnetic waves in space, RIS can assist in building an intelligent and controllable wireless electromagnetic environment, thus providing a new paradigm for the development of mobile communications.Firstly, the basic principle, main technology advantages and application scenarios were analyzed.Then, the key technologies such as channel estimation and beamforming in RIS aided communication transmission were discussed, and relevant research suggestions were given.Finally, the main challenges of RIS technology in practical application were analyzed from the aspects of hardware implementation, algorithm design and network deployment.

Key words: reconfigurable intelligent surface, 6G, channel estimation, beamforming, network deployment

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