Wireless communication system, wireless communication method and wireless communication control device

A wireless communication method performed by a wireless communication system including a base station, a reconfigurable intelligent surface (RIS) device that reflects a radio wave from the base station to a terminal device, and a control device that controls the RIS device, the wireless communication method comprising:

• pre-estimating radio quality in an area;
• receiving positioning information from the terminal device;
• performing wake-up determination for determining necessity of activation of the RIS device;
• transmitting a wake-up signal giving an instruction on activation and an RIS parameter signal to the RIS device in a case of determining that the activation is necessary;
• activating the RIS device in a case of receiving the wake-up signal;
• and
• performing reflection control of a radio wave in a reflection unit of the RIS device on a basis of the RIS parameter signal.

A wireless communication control device configured to execute operations comprising:

• pre-estimating radio quality in an area;
• receiving positioning information from a terminal device that is a reflection destination of a radio wave;
• performing wake-up determination for determining necessity of activation of a reconfigurable intelligent surface (RIS) device to be controlled;
• and
• transmitting a wake-up signal giving an instruction on the activation and an RIS parameter signal to the RIS device in a case of determining that the activation is necessary.