Aperiodic channel state information feedback method and apparatus for triggering

The present invention proposes a trigger aperiodic channel state information feedback method, used in a multi-cell cooperative multi-component carrier system. According to the present invention, the base station is first arranged by higher layer signaling (RRC signaling) to the user equipment into the semi-statically coordinated multi-point transmission mode, and / or measuring cell information and / or measurement information component carriers. Then, the base station using a downlink control information (via PDCCH) aperiodic feedback request to the originating user equipment dynamic channel state information. The user equipment after receiving aperiodic channel state information feedback request transmitted from the base station, to the base station sends a measurement via an uplink channel (PUSCH or PUCCH) aperiodic channel state information. According to the present invention, the method can be configured flexibly aperiodic channel state information feedback in a coordinated multi-point transmission mode is triggered, and also possible to obtain good forward compatibility. The present invention is simple and effective design, low complexity system design to meet the design requirements of the actual system and the LTE-Advanced system evolution.