METHOD AND APPARATUS OF INTERFERENCE RECONSTRUCTION AND CHANNEL ESTIMATION FOR MULTICARRIER SYSTEMS WITH NON-ORTHOGONAL WAVEFORM

摘要

The present disclosure relates to a 5G or pre-5G communication system to be provided to support a higher data rate after a 4G communication system such as LTE. Since inter-symbol interference and inter-carrier interference occur in a non-orthogonal system, accurate channel estimation is difficult. In order to solve this problem, the present invention can perform a method for constructing an interference component using a data symbol detected in a non-orthogonal system and an estimated channel response, and a method and method for estimating a channel using the structure and interference component of a non-orthogonal system. Suggest a device with According to the present invention, a receiver receives a reference signal and data transmitted by a transmitter, detects an adjacent data symbol around the reference signal, estimates an initial channel state, and based on the adjacent data symbol and the initial channel state constructing the interference signal, estimating the channel state based on the configured interference signal, reconstructing the interference signal based on the estimated channel state, and re-estimating the channel state based on the reconstructed interference signal perform the iterative process.