METHOD OF EXECUTING LATTICE REDUCTION, DEVICE OF EXECUTING LATTICE REDUCTION, COMPUTER PROGRAM AND INFORMATION STORAGE MEANS

摘要

PROBLEM TO BE SOLVED: To provide a receiving device which receives a complex symbol from at least one transmitting device via a multi-input multi-output flat fading channel and executes lattice reduction.SOLUTION: A receiving device acquires a first channel matrix showing a multi-input multi-output channel between at least one transmitting device and the receiving device for the first time and/or a frequency resource, acquires the result of the first lattice reduction to the first channel matrix, acquires a second matrix showing a multi-input multi-output channel between the at least one transmitting device and the receiving device for the second time and/or the frequency resource, and executes the second lattice reduction to the second channel matrix on the basis of the second channel matrix, the first channel matrix and the result of the first lattice reduction.