An overview on integrated localization and communication towards 6G  

作　　者：Zhiqiang XIAO Yong ZENG 

机构地区：[1]National Mobile Communications Research Laboratory,Southeast University,Nanjing 210096,China [2]Purple Mountain Laboratories,Nanjing 211111,China

出　　处：《Science China(Information Sciences)》2022年第3期1-46,共46页中国科学（信息科学）（英文版）

基　　金：supported by National Key R&D Program of China (Grant No. 2019YFB1803400);National Natural Science Foundation of China (Grant No. 62071114);Fundamental Research Funds for the Central Universities of China (Grant No. 3204002004A2);Program for Innovative Talents and Entrepreneur in Jiangsu (Grant No. 1104000402)。

摘　　要：While the fifth generation(5 G) cellular system is being deployed worldwide, researchers have started the investigation of the sixth generation(6 G) mobile communication networks. Although the essential requirements and key usage scenarios of 6 G are yet to be defined, it is believed that 6 G should be able to provide intelligent and ubiquitous wireless connectivity with Terabits per second(Tbps) data rate and submillisecond(sub-ms) latency over three-dimensional(3 D) network coverage. To achieve such goals, acquiring accurate location information of the mobile terminals is becoming extremely useful, not only for locationbased services but also for improving wireless communication performance in various ways such as channel estimation, beam alignment, medium access control, routing, and network optimization. On the other hand, the advancement of communication technologies also brings new opportunities to greatly improve the localization performance, as exemplified by the anticipated centimeter-level localization accuracy in 6 G by extremely large-scale multiple-input multiple-output(MIMO) and millimeter wave(mm Wave) technologies.In this regard, a unified study on integrated localization and communication(ILAC) is necessary to unlock the full potential of wireless networks for dual purposes. While there are extensive studies on wireless localization or communications separately, the research on ILAC is still in its infancy. Therefore, this article aims to give a tutorial overview on ILAC towards 6 G wireless networks. After a holistic survey on wireless localization basics, we present the state-of-the-art results on how wireless localization and communication inter-play with each other in various network layers, together with the main architectures and techniques for localization and communication co-design in current two-dimensional(2 D) and future 3 D networks with aerial-ground integration. Finally, we outline some promising future research directions for ILAC.

关 键 词：wireless localization integrated localization and communication cellular networks B5G 6G 

分 类 号：TN929.5[电子电信—通信与信息系统]