Patent ID: 9184823
Filing Date: 2015-11-10
Classification: H04B

Abstract:
1. An encoding apparatus of a multiple input multiple output (MIMO) communication system, comprising: a storage for storing a plurality of precoding matrices to correspond to a plurality of address values, respectively; a controller for receiving precoding information corresponding to data items of respective layers from an upper layer, selecting a precoding matrix from the storage based on the precoding information, and analyzing a kind of the selected precoding matrix and a precoding operation pattern; wherein the upper layer determines a transmission mode using a number of transmitting antennas and a number of layers obtained from the selected precoding matrix; an operation selector for selecting one of spatial multiplexing precoding, spatial multiplexing simple precoding, or transmission diversity precoding in accordance with the kind of the selected precoding matrix and the precoding operation pattern; and an operator for precoding the data items of the respective layers in accordance with the selected precoding matrix.