A method for sending a pilot, the method executed by a base station, comprising: determining a pilot pattern configured for a user equipment, wherein the pilot pattern comprises time-frequency position information of the pilot, and the time-frequency position information of the pilot comprises position information of an initial time point of the pilot in each of a plurality of sub-frames (S 101); wherein the initial time point in each of the plurality of the sub-frames is a first symbol of each of the sub-frames; sending the pilot to the user equipment according to the pilot pattern; wherein pilots are arranged in all resource elements, Res, in the first symbol of the each of the sub-frames; the method further comprises: updating the pilot pattern of the user equipment so that the time-frequency position information of the pilot in the updated pilot pattern comprises position information of the initial time point of the pilot in the plurality of sub-frames, and position information of the subsequent time points after the initial time point; and sending the pilot to the user equipment according to the updated pilot pattern; wherein the method further comprises: after the pilot pattern is updated for the user equipment, and before the pilot is sent to the user equipment according to the updated pilot pattern, sending control information to the user equipment to instruct the user equipment to receive the pilot; wherein the control information comprises indication information of the updated pilot pattern. determining a pilot pattern configured for a user equipment, wherein the pilot pattern comprises time-frequency position information of the pilot, and the time-frequency position information of the pilot comprises position information of an initial time point of the pilot in each of a plurality of sub-frames (S 101); wherein the initial time point in each of the plurality of the sub-frames is a first symbol of each of the sub-frames; sending the pilot to the user equipment according to the pilot pattern; wherein pilots are arranged in all resource elements, Res, in the first symbol of the each of the sub-frames; the method further comprises: updating the pilot pattern of the user equipment so that the time-frequency position information of the pilot in the updated pilot pattern comprises position information of the initial time point of the pilot in the plurality of sub-frames, and position information of the subsequent time points after the initial time point; and sending the pilot to the user equipment according to the updated pilot pattern; wherein the method further comprises: after the pilot pattern is updated for the user equipment, and before the pilot is sent to the user equipment according to the updated pilot pattern, sending control information to the user equipment to instruct the user equipment to receive the pilot; wherein the control information comprises indication information of the updated pilot pattern. updating the pilot pattern of the user equipment so that the time-frequency position information of the pilot in the updated pilot pattern comprises position information of the initial time point of the pilot in the plurality of sub-frames, and position information of the subsequent time points after the initial time point; and sending the pilot to the user equipment according to the updated pilot pattern; wherein the method further comprises: after the pilot pattern is updated for the user equipment, and before the pilot is sent to the user equipment according to the updated pilot pattern, sending control information to the user equipment to instruct the user equipment to receive the pilot; wherein the control information comprises indication information of the updated pilot pattern. after the pilot pattern is updated for the user equipment, and before the pilot is sent to the user equipment according to the updated pilot pattern, sending control information to the user equipment to instruct the user equipment to receive the pilot; wherein the control information comprises indication information of the updated pilot pattern.