Multiple antenna systems using different diversities in multiplexing mode

摘要

PURPOSE: A multiplexing multi-antenna system using a diversity method is provided to improve a receiving factor of a receiving side by transmitting a spatial-time coded signal corresponding to the first detected signal of the receiving side. CONSTITUTION: A multiplexing multi-antenna system using a diversity method includes a serial/parallel conversion unit(111), a spatial-time coding unit(112), a switching unit(113), and a multi-antenna unit(114). The serial/parallel conversion unit(111) converts serial signals to parallel signals of 2M number. The spatial-time coding unit(112) performs a spatial-time coding process for the first parallel signal and the M+1-th parallel signal. The switching unit(113) outputs in parallel the second to the M-th parallel signals of the first spatial-time coded signal, the M+1-th spatial-time coded signal, and the parallel signals of 2M number at the first period of time. In addition, the switching unit outputs in parallel the M+2-th to the 2M-th parallel signals of the M+1-th spatial-time coded signal, the first spatial-time coded signal, and the parallel signals of the 2M number at the second period of time. The multi-antenna unit(114) is formed with antennas of M+1 number.