Social welfare is regarded as an important direction for mobile network in addition to meeting personalized needs of users.In this paper,scenarios of Reconfigurable Intelligent Surface(RIS)deployed in 5G-Advanced(5G-A)and 6G network are figured out based on the analysis of development trend and challenges in mobile network according to ubiquitous access and energy saving.Furthermore,we analyze the application value of RIS in different scenarios,including transceiver designed based on RIS and RIS-assisted wireless channel dynamic control.Finally,different control schemes of RIS with network control,self-control and terminal control are proposed and compared.In these schemes,control information distribution on netwrok-side is prefered for its samller impact on RIS area,cost and power consumption,and is capable of implement standardization of convergence of BSs and RIS devices from different vendors.
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