A METHOD FOR GENERATING DOWNLINK IN DOWNLINK MIMO SYSTEM

摘要

PURPOSE: A method for generating a downlink in a downlink MIMO system is provided to obtain a diversity to layers in a group by permutating layers in a group unit. CONSTITUTION: At least one transport block is mapped to at least one code word. At least one layer is mapped to the code words respectively. At least mapped one layer is classified as the certain number of a layer group. Layer permutation is performed according to the layer group. An OFDM(Orthogonal Frequency Division Multiplexing) symbol is generated according to the layer group by using a permutated signal.