1. A method of multiplexing data words in a multicarrier transmit diversity system, comprising: a) generating a plurality of data blocks, each data block comprising data words and each data word containing data symbols derived from a data signal; b) determining for one or more data blocks in dependence on at least one transmission constraint if the data words of said one or more data blocks are to be multiplexed in space-time or in space-frequency, wherein the transmission constraint comprises a data-related transmission constraint relating to a pre-defined number of data symbols to be comprised within each data word which is to be multiplexed in space-time, and wherein the data words containing the predefined number of data symbols are multiplexed in space-time and the data words containing more or less data symbols are multiplexed in space-frequency; and c) multiplexing the data words of the data blocks in accordance with the determination in step b).
1. A method of multiplexing data words in a multicarrier transmit diversity system, comprising: a) generating a plurality of data blocks, each data block comprising data words and each data word containing data symbols derived from a data signal; b) determining for one or more data blocks in dependence on at least one transmission constraint if the data words of said one or more data blocks are to be multiplexed in space-time or in space-frequency, wherein the transmission constraint comprises a data-related transmission constraint relating to a pre-defined number of data symbols to be comprised within each data word which is to be multiplexed in space-time, and wherein the data words containing the predefined number of data symbols are multiplexed in space-time and the data words containing more or less data symbols are multiplexed in space-frequency; and c) multiplexing the data words of the data blocks in accordance with the determination in step b). 16. The method according to claim 1 , wherein the data blocks are obtained from the data signal by means of block coding or by means of permutation.