| 摘要 |
This invention relates to bit interleaver and de-interleaver apparatus, methods and processor control code for use in MIMO (Multiple-input multiple-output) communications systems, in particular MIMO systems employing OFDM (orthogonal frequency division multiplexing). We describe an interleaver for a MIMO OFDM communications system having a plurality of transmit antennas, said interleaver being configured to interleave a block of N data bits comprising data for a plurality of OFDM symbols, each OFDM symbol being defined by a block of N<SUB>cbps </SUB>bits, by implementing first and second interleaving functions wherein at least one of said interleaving finctions is configured to interleave data bits between said blocks of N<SUB>cbps </SUB>bits. We also describe a corresponding de-interleaver and related interleaving and de-interleaving methods.
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