Patent ID: 8036309

Claim:
A method for transmitting data in a digital communication system, the method comprising: a) a first transmission step of transmitting a data word modulated on a carrier according to a first mapping of first concatenated data word values to modulation states; and b) at least one further transmission step of transmitting the same data word modulated on a carrier according to at least one further mapping of further concatenated data word values to modulation states, wherein: a number of different combined values obtainable, by adding for each of the first and further concatenated data word values, complex values associated with said first concatenated data word value according to said first mapping and further complex values associated with said further concatenated data word values according to said at least one further mapping, is lower than a number of different data word values within said first mapping, and said first mapping and said at least one further mapping are obtained from a common super-mapping by pre-pending a leading control word to a data word, wherein the common super-mapping maps concatenated values of a control word and the data word having said leading control word pre-pended thereto to modulation states, and each of the first and the at least one further transmission is associated with a specific value of the control word, resulting in the respective first and further concatenated data word values.