User equipment positioning method, apparatus, base station and storage medium

A user equipment positioning apparatus, applied to a base station, wherein the apparatus comprises:

• a signal receiving module, configured for receiving a pilot signal sent by a target user equipment, UE;
• a channel estimation module, configured for calculating a channel state information, CSI, estimation value of a channel between the base station and the target UE according to the received pilot signal;
• an angle estimation module, configured for calculating transmission directions of the pilot signal along different signal paths according to the CSI estimation value to obtain angle of arrival, AoA, estimation values;
• a spatial filtering module, configured for performing directional beamforming based on the AoA estimation values to generate a spatially filtered CSI estimation value;
• a Kalman filtering module, configured for performing Kalman filtering on the spatially filtered CSI estimation value to generate an enhanced CSI estimation value;
• a distance estimation module, configured for calculating transmission distances of the pilot signal transmitted along different signal paths according to the enhanced CSI estimation value to obtain distance estimation values;
• a position determination module, configured for determining a position of the target UE according to a minimum distance estimation value among the distance estimation values and an AoA estimation value corresponding to the minimum distance estimation value.