Base station, user equipment, and control channel transmission and receiving method

Provided are a base station, user equipment (UE), and control channel transmission and receiving method, the transmission method comprising: determining a plurality of subframes for conducting enhanced transmission on a control channel; and conducting enhanced transmission on the control channel in the plurality of subframes, the enhanced transmission being at least one of repetitive transmission, spread-spectrum transmission, transmission time interval-bundling (TTI-bundling) transmission and power increasing transmission. The base station and the UE can conduct control information mapping and detection on the determined plurality of subframes using the method of the present invention, thus reducing scheduling complexity and detection complexity.