Abstract: The present invention provides a method for a User Equipment UE to report auxiliary information, comprising the following steps: an eNodeB, eNB, transmits to the UE a request signaling for reporting auxiliary information; after receiving the request signaling, the UE reports to the eNB the auxiliary information corresponding to the request signaling for reporting auxiliary information. The present invention also provides some other methods for the UE to report auxiliary information. The scheme of the present invention ensures that the UE can report auxiliary information to the eNB instantly and exactly, in the case that no high complexity and signaling overhead of the UE is introduced.