DETERMINING METHOD FOR TRANSMIT POWER INFORMATION OF TERMINAL IN D2D COMMUNICATION, RESOURCE ALLOCATION METHOD FOR TERMINAL IN D2D COMMUNICATION AND D2D COMMUNICATION SYSTEM

摘要

The present invention comprises the steps of enabling a base station to obtain channel gain information for at least one D2D communication terminal (DUE) and at least one mobile communication terminal (CUE) located in the coverage of the base station (610); of enabling the base station to determine final transmission power between the mobile communication terminal (CUE) and the D2D communication terminal (DUE) using the channel gain information (620); and of enabling the base station to allocate resources to the selected D2D communication terminal by selecting the D2D communication terminal (DUE) which shares the resources with the mobile communication terminal (CUE) (630). The determination step (620) determines the transmission power of DUE j, in which the sum of the CUE i transmission rate and the DUE j transmission rate is maximized when the base station shares the same resources between the CUE i and the DUE j using the channel gain information, as the optimal transmission power. The allocation step (630) comprises a step of enabling the base station to allocate the resources to CUE i (631); a step of enabling the base station to select the DUE j which becomes the maximum sum of the CUE i among DUE using the determined optimal transmission power; and a step of enabling the base station to enabling the base station to transmit a control signal including resource information allocated to the CUE i and the optimal transmission power for the DUE j to the selected DUE j through a downlink.