Patent ID: 10212626

Abstract:
An optimal mode is selected in a coordinated transmission, depending on a situation of a network, and thus, it is possible to increase performance of a system. Coordinated mode selector (112) selects a JT mode in a case where X2 transmission time included in feedback information received from another base station is less than a second threshold, and selects a Blanking mode in a case where the X2 transmission time is greater than or equal to the second threshold. Base station to base station coordinating controller (113) performs base station to base station coordination control between another base station and a base station so as to perform a coordinated mode stored in memory unit (104) in a case where the coordinated transmission starts, and performs the base station to base station coordination control between another base station and the base station again so as to perform the coordinated mode newly selected in a case where the coordinated mode selected by coordinated mode selector (112) changes.