Communication method and device, reflection plane, computing system, enhancer and repeater

The invention discloses a communication method and device, a reflection plane, a computing system, an enhancer and a repeater. The communication method comprises the following steps: acquiring communication parameters corresponding to an uplink and a downlink respectively; determining a target optimization problem based on the communication parameters, the target optimization problem comprising a mapping relationship between the transmission delay of the uplink and the transmission rate of the downlink; and performing iterative optimization on the target optimization problem to obtain a bandwidth optimal solution and a reflection matrix optimal solution, and performing adjustment according to the bandwidth optimal solution and the reflection matrix optimal solution so as to enable the reflection link signal and the direct link signal to form correlation superposition when the intelligent reflection plane receives the reflection link signal corresponding to the direct link signal. Based on the scheme of the in