Patent ID: 7697565

Claim:
A transmission apparatus for transmitting data comprising: a table that includes a plurality of constellation versions for a 64 QAM modulation scheme, one of the constellation versions is produced by, with respect to a bit sequence (i 1 q 1 i 2 q 2 i 3 q 3 ), at least one of (i) shifting bit positions to a bit sequence (i 2 q 2 i 3 q 3 i 1 q 1 ), (ii) inverting logical values of i 2 and q 2 and (iii) inverting logical values of i 3 and q 3 ; a modulation section that modulates data into a 64 QAM symbol based on one of the constellation versions; and a transmission section that transmits the modulated data to a reception apparatus.