| 摘要 |
The present invention relates to a channel state information reporting method, user equipment and base station thereof, via UE determines channel state information measurement resource based on non-periodic Channel State Information (CSI) trigger signal, base station sends Channel State Information-Reference Signal (CSI-RS) only when it needs UE to report non-periodic CSI, comparing with sending periodic CSI-RS by base station at present, reducing needless CSI-RS sending can save energy of base station such as Enhanced Node B (eNB); and reducing CSI-RS sending can reduce the occupied resource of CSI-RS, thereby can improve system spectrum efficiency. Otherwise, reducing needless CSI-RS sending can reduce interference of base station to other cells; in conclusion reserving CSI measurement resource only when CSI feedback is needed, reduces occupancy consumption of CSI measurement resource, improves system spectrum efficiency. |
