Patent ID: 11026105

Abstract:
A fingerprint-based beam interference cancellation system and a method thereof are proposed. A communication part receives location information and reference signal reception power which is strength of a received signal provided from each user terminal in response to a reference signal, a fingerprint DB construction part constructs a fingerprint database by receiving the reference signal reception power and the location information, a group-based fingerprint DB construction part constructs a group-based fingerprint database by grouping user terminals, aligning the remaining beams, generating group fingerprint data with the aligned beams, and using the generated group fingerprint data, a first beam interference cancellation part generates a beam set for each group from which beam interference within the group is cancelled, and a second beam interference cancellation part removes beams redundant between the groups and cancels intra-group and inter-group beam interference in millimeter wave communication, thereby improving reliability and data transfer rate.