Full-spectrum cell-free RAN for 6G systems:system design and experimental results  

作　　者：Dongming WANG Xiaohu YOU Yongming HUANG Wei XU Jiamin LI Pengcheng ZHU Yanxiang JIANG Yang CAO Xinjiang XIA Ziyang ZHANG Qingji JIANG Pan WANG Dongjie LIU Kang ZHENG Mengting LOU Jing JIN Qixing WANG Jiangzhou WANG 

机构地区：[1]National Mobile Communications Research Laboratory,Southeast University,Nanjing 210096,China [2]Purple Mountain Laboratories,Nanjing 211100,China [3]China Mobile Research Institute,Beijing 100053,China [4]School of Engineering,University of Kent,Canterbury CT27NT,UK

出　　处：《Science China(Information Sciences)》2023年第3期76-89,共14页中国科学（信息科学）（英文版）

基　　金：supported in part by National Key Research and Development Program(Grant Nos.2020YFB1807205,2020YFB1806608);Research and Development Project in the Key Areas of Guangdong Province(Grant No.2020B0101120003);Southeast-China Mobile Research Institute Joint Innovation Center and by Major Key Project of PCL(Grant No.PCL2021A01-2).

摘　　要：With distributed transceivers and scalable cooperative transmission,cell-free massive multipleinput multiple-output(CF-mMIMO)technology eliminates the“cells”of traditional mobile communications,thereby significantly improving the performance of wireless networks.CF-mMIMO is considered as a major technical tool for achieving the key performance indicators of sixth generation(6G)mobile communication systems.In this paper,a scalable implementation architecture for CF-mMIMO is proposed,based on which potential key technologies such as channel information acquisition,transceiver design,dynamic user and access point association,and novel duplexing are introduced.Finally,based on low-cost commercial access points,a CF-mMIMO testbed with 64 transmit and receive antennas is developed,and the performance of the distributed receiver design is evaluated.

关 键 词：6G scalable cell-free massive MIMO cell-free radio access network prototype system 

分 类 号：TN929.5[电子电信—通信与信息系统]