Patent ID: 7400687
Filing Date: 2008-07-15
Classification: H03M,H04L

Abstract:
1. A multicarrier communication apparatus comprising: a bit separation section that separates transmission data having a bit sequence of one system into bit sequences of two systems; a plurality of interleavers that interleave the separated bit sequences of the respective systems with interleave patterns each being different for each retransmission; a bit sequence supplying section that supplies the separated bit sequences of the respective systems to the interleavers each being different for each retransmission; a bit interchanging section that interchanges an order of high-order bits and low-order bits for each retransmission when modulation processing is performed on the interleaved bit sequences of the respective systems; a multiplexing section that performs time division multiplexing on the bit sequences of the respective systems where the order of the high-order bits and the low-order bits is interchanged; an M-ary modulating section that performs the modulation processing of modulating the transmission data with three bits or more multiplexed by said multiplexing section to one symbol; and a multicarrier transmitting section that superimposes the symbol obtained by said M-ary modulating section on a plurality of subcarriers to transmit.