Patent ID: 7864876
Filing Date: 2011-01-04
Classification: H04L

Abstract:
1. An apparatus for transmitting a space-time block code (STBC) in a multiple antenna system, having a number of transmit antennas, comprising: a symbol mapper for generating a number of symbols from the received binary data, upon receipt of binary data, each symbol having a number of bits; a space-time block encoder for generating an STBC by encoding the generated symbols; a differential encoding processor for differentially encoding the generated STBC through feedback and delay; and a distribution matrix processor for substituting the differentially encoded STBC into a distribution matrix, and outputting the differential STBC code of the distribution matrix to transmit antennas, wherein distribution matrix is set from among first matrices used for transmission of a real signal and second matrices used for transmission of a complex signal, depending on whether the symbols are real or complex and the number of the transmit antennas, and wherein the first matrices are defined by the following G matrices and the second matrices are defined by the following B matrices wherein at least one of the second matrices used for transmission of the complex signal is not square and the symbols are complex.