A method for reporting antenna calibration information, comprising: estimating, by a User Equipment, UE, an equivalent downlink baseband channel from each of a plurality of antennas of a base station to an antenna of the UE; determining, by the UE, an amplitude response ρ k and a delay value Δ k to be reported according to the equivalent downlink baseband channel; and reporting, by the UE, ρ k and Δ k to the base station wherein determining, by the UE, ρ k according to the equivalent downlink baseband channel comprises: measuring, by the UE, an equivalent downlink baseband channel from a transmission antenna at each of a number N of frequencies f in a frequency band specified by the base station to the antenna of the UE, and calculating, by the UE, ρ k according to H k D L f i as: ρ k = 1 N ∑ i = 1 N H k D L f i, wherein H k D L f i is an equivalent downlink baseband channel from the k th transmission antenna at the i th frequency to the antenna of the UE, or ρ k = 1 N ∑ i = 1 N H k D L f i 2, wherein H k D L f i is an equivalent downlink baseband channel from the k th transmission antenna at the i th frequency to the antenna of the UE; or measuring, by the UE, an equivalent downlink baseband channel from a transmission antenna at each of a number N of frequencies f in a frequency band specified by the base station to the UE, and calculating an amplitude value of the k th antenna relative to the first antenna as ρ k ʹ = ρ k / ρ 1 taking the first antenna as a reference antenna, wherein ρ k = 1 N ∑ i = 1 N H k D L f i or ρ k = 1 N ∑ i = 1 N H k D L f i 2, and H k DL f i is an equivalent downlink baseband channel from the k th transmission antenna at the i th frequency to the antenna of the UE, and then taking the derived ρ k ʹ as ρ k. estimating, by a User Equipment, UE, an equivalent downlink baseband channel from each of a plurality of antennas of a base station to an antenna of the UE; determining, by the UE, an amplitude response ρ k and a delay value Δ k to be reported according to the equivalent downlink baseband channel; and reporting, by the UE, ρ k and Δ k to the base station wherein determining, by the UE, ρ k according to the equivalent downlink baseband channel comprises: measuring, by the UE, an equivalent downlink baseband channel from a transmission antenna at each of a number N of frequencies f in a frequency band specified by the base station to the antenna of the UE, and calculating, by the UE, ρ k according to H k D L f i as: ρ k = 1 N ∑ i = 1 N H k D L f i, wherein H k D L f i is an equivalent downlink baseband channel from the k th transmission antenna at the i th frequency to the antenna of the UE, or ρ k = 1 N ∑ i = 1 N H k D L f i 2, wherein H k D L f i is an equivalent downlink baseband channel from the k th transmission antenna at the i th frequency to the antenna of the UE; or measuring, by the UE, an equivalent downlink baseband channel from a transmission antenna at each of a number N of frequencies f in a frequency band specified by the base station to the UE, and calculating an amplitude value of the k th antenna relative to the first antenna as ρ k ʹ = ρ k / ρ 1 taking the first antenna as a reference antenna, wherein ρ k = 1 N ∑ i = 1 N H k D L f i or ρ k = 1 N ∑ i = 1 N H k D L f i 2, and H k DL f i is an equivalent downlink baseband channel from the k th transmission antenna at the i th frequency to the antenna of the UE, and then taking the derived ρ k ʹ as ρ k. measuring, by the UE, an equivalent downlink baseband channel from a transmission antenna at each of a number N of frequencies f in a frequency band specified by the base station to the antenna of the UE, and calculating, by the UE, ρ k according to H k D L f i as: ρ k = 1 N ∑ i = 1 N H k D L f i, wherein H k D L f i is an equivalent downlink baseband channel from the k th transmission antenna at the i th frequency to the antenna of the UE, or ρ k = 1 N ∑ i = 1 N H k D L f i 2, wherein H k D L f i is an equivalent downlink baseband channel from the k th transmission antenna at the i th frequency to the antenna of the UE; or measuring, by the UE, an equivalent downlink baseband channel from a transmission antenna at each of a number N of frequencies f in a frequency band specified by the base station to the UE, and calculating an amplitude value of the k th antenna relative to the first antenna as ρ k ʹ = ρ k / ρ 1 taking the first antenna as a reference antenna, wherein ρ k = 1 N ∑ i = 1 N H k D L f i or ρ k = 1 N ∑ i = 1 N H k D L f i 2, and H k DL f i is an equivalent downlink baseband channel from the k th transmission antenna at the i th frequency to the antenna of the UE, and then taking the derived ρ k ʹ as ρ k.