COMMUNICATIONS SYSTEM, BASE STATION DEVICE, TERMINAL DEVICE, AND COMMUNICATIONS METHOD

摘要

A base station apparatus provides one or more cells and performing radio communications with a terminal apparatus, includes a receiving unit receiving the communication conditions from another base station apparatus, the communication conditions being used for a signal processing in radio communications with the terminal apparatus, a transition unit transitioning, when the communication conditions is received from the other base station apparatus, to a coordinated communication mode where the base station and the other base station apparatus perform radio communications with the terminal apparatus, and a radio communication unit performing radio communications with the terminal apparatus using the communication conditions received from the other base station apparatus in the coordinated communication mode.