Receiver and transmitter for retransmission ARQ reordering scheme employing multiple redundancy versions

摘要

A transmission apparatus (100) to transmit data using a HARQ process applying a modulation scheme higher order having more than two bits per data symbol, comprising: a transmission section that transmits data using a combination of a plurality combinations, each comprising combinations a redundancy version of a plurality of redundancy versions and constellation version of a plurality of versions of constellation of said modulation scheme, assigning at least one redundancy version of the plurality of versions redundancy to more than one version constellation; wherein each of constellation versions defining at least one of bit positions in a bit sequence of that symbol data comprising a plurality of bits or logical values ​​of bits; and wherein one of the constellation versions is produced by at least one exchange with another bit in the bit sequence comprising a plurality of bits or invert a logical value of a bit in the bit sequence.