Patent ID: 7684362

Claim:
A MIMO multiple transmission device having a plurality of upper data streams and a plurality of transmission streams, each of the upper data streams comprising: a packet data block generator for generating a packet data block as a resent unit for hybrid ARQ; a CRC adder coupled to an output of the packet data block generator, for adding an error detection code; a channel encoder coupled to an output of the CRC adder, for performing channel encoding; the MIMO multiple transmission device comprising: a parallel-to-serial converter for receiving parallel outputs which are each received from the channel encoder of each of the upper data streams, and converting the parallel outputs to serial form; an interleaver between transmission streams for performing interleaving on outputs from the parallel-to-serial converter; a serial-to-parallel converter for converting serial outputs from the interleaver between transmission streams to be outputted in parallel to the plurality of transmission streams; each of the transmission streams comprising: a coding rate changer coupled to an output of the serial-to-parallel converter, for changing a coding rate; and a data modulator coupled to an output of the coding rate changer, for modulating data.