A long-form review titled “Full-spectrum Cell-free RAN for 6G Systems: System design, and Experimental Results” was published in Science China Information Sciences. This study was led by Prof. Wang Dongming and Prof. You Xiaohu from Southeast University, China along with other 16 experts and scholars from scientific research institutes, colleges, and companies.
This article proposed a novel full-spectrum CF-RAN architecture. Based on the reasonable division of the physical layer, a scalable CF-mMIMO with RF unit, edge distributed unit (EDU), and user-centric distributed unit (UCDU) functions formed, in which the RF unit completes RF signal receiving and transmitting in each frequency band, EDU implements distributed precoding and receiver, UCDU implements data distribution and combining.
