Patent ID: 7346646

Claim:
A method for data rate matching, the method comprising the steps of: distributing data to be transmitted as bits over a set of frames via a first interleaver; carrying out a repetition method, for purposes of the data rate matching, on the transmitted data after interleaving such that a same number of bits are repeated in each of the frames, and the repeated bits have as uniform as possible a spacing from one another with regard to a sequence of the transmitted bits upstream of the first interleaver; and applying, in displaced fashion, a repetition pattern of the repetition method, which is applied inside a first frame of the frames, and also inside further frames of the set of frames, wherein a repetition rate is not an integral fraction, and wherein a displacement S(k) of the repetition pattern to the set of frames is performed using a displacement of a next lower repetition rate that is an integral fraction, wherein the displacement S(k) of the repetition pattern to a frame k of the frames is obtained via: calculation of a mean repetition distance q, using the following formulation: q :=(┌ N c /(/ N i −N c /)┐) where ┌ ┐ signifies rounding up, and // signifies an absolute value, N c represents a number of bits of each of the frames before the rate matching, and N i represents a number of bits of the each of the frames after the rate matching and if q is even then q=q+1cd(q, F)/F, where 1cd (q, F) signifies a greatest common divisor of q and F, where F is the number of the frames endif calculation of the S(k), the displacement of the repetition pattern each column k, using the following formulation: for I=0 to F−1 S ( R F (└ i*q ┘ mod F ))=(└ i*q ┘ div F ) where, └ ┘ signifies rounding down, and R F (k) is an inversion of a column exchange operation of the first interleaver end for, and displacing the repetition pattern of the frame k by the amount S(k).