Reflection direction control system, reflection direction control device, reflection direction control method, and reflection direction control program

A reflection direction control device comprising;

• a position estimation unit configured to estimate a position of each wireless terminal on the basis of radio waves transmitted by one or more wireless terminals to a plurality of reflection units each including a plurality of reflection elements;
• a direction estimation unit configured to estimate an incident direction of the radio waves transmitted by each of the wireless terminals to the reflection unit on the basis of the respective positions of the wireless terminals estimated by the position estimation unit;
• a phase calculation unit configured to calculate the phase of the radio waves to be reflected by each of the plurality of reflection elements so that the reflection unit reflects the radio waves made incident in the direction estimated by the direction estimation unit in a predetermined direction;
• and
• a phase control unit configured to control the phase of the radio waves reflected by each of the plurality of reflection elements on the basis of the phase calculated by the phase calculation unit.

A reflection direction control method comprising:

• estimating a position of each of the wireless terminals on the basis of radio waves transmitted by one or more wireless terminals to a plurality of reflection units each including a plurality of reflection elements;
• estimating an incident direction of the radio waves transmitted by each of the wireless terminals to the reflection unit on the basis of the estimated position of each of the wireless terminals;
• calculating a phase of the radio waves to be reflected by each of the plurality of reflection elements so that the reflection unit reflects the radio waves made incident in the estimated direction in a predetermined direction;
• and
• controlling the phase of the radio waves reflected by each of the plurality of reflection elements on the basis of the calculated phase.