Patent ID: 7324472

Claim:
A transmission method wherein data of different classes are transmitted and different reliability positions exist, with bits of the different classes being mapped to respective reliability positions, the method comprising the steps of: modulating the data for transmission to express more than one bit by a symbol, the symbol expressing a certain sequence of more than one bit; providing that the data of the different classes to be transmitted include at least a first and a second class of bits; representing a respective reliability position by a position within the symbol on which a bit may be mapped and linking the respective liability position with a transmission reliability; providing that at least two different values of the transmission reliability exist; wherein mapping of a bit onto a position within the symbol comprises the steps of: establishing a matrix with N row rows and N col columns, having (N row *N col ) total entries, whereby onto each entry a bit may be positioned, with all entries of a same row being linked with a same value of the transmission reliablity; determining a number N t,sys of bits to be transmitted of the first bit class and allocating a respective number of entries for the bits to be transmitted in the matrix row-by-row, thus allocating the first N c columns with dimension N r +1 and, if N r >0, allocating remaining (N col −N c ) columns with dimension N r , wherein N r is the number of rows that are completely allocated to bits of the first bit class, and 1<N c <N col ; calculating N c as N c = ( N t , sys N col - N r ) · N col = N t , sys - N r · N col ⁢ ⁢ and ⁢ ⁢ N r = ⌊ N t , sys N col ⌋ and if N c =0, allocating all columns with N r rows; and filling the allocated entries with the bits of the first class of bits column-by-column.