Abstract: With the release of 5G license issued by the Ministry of Industry and Information Technology, there will be large area of construction and application of 5G network, therefore, the infrastructure of 5G network is more and more important to ensure the normal operation of the entire network. The standardization work of one of important infrastructure, which is 5G power, was analyzed in this paper, including the background information of establishing this Work Item, whole developing process and core technical points of the Recommendation ITU-T 1210 “Sustainable power-feeding solutions for 5G networks” that was published in December 2019. In addition, related standardization work in China was also introduced and standardization plan of 5G energy was described. This paper is aiming to provide a basis and support for 5G network energy designer, constructer, and standard developing experts.

Key words: 5G network, energy, energy efficiency, -48V