Patent ID: 7200792
Filing Date: 2007-04-03
Classification: H03M,H04L

Abstract:
1. An apparatus for data transmission in a communication system, comprising: a turbo encoder for coding data bits to generate systematic bits and parity bits; a rate matcher for rate matching the systematic bits and parity bits; a first interleaver for writing the rate-matched systematic bits on a row by row basis, and performing inter-column permutation; a second interleaver for writing the rate-matched parity bits on a row-by-row basis, and performing inter-column permutation; a modulator for alternatively collecting the permutated bits on a column by column basis from the first interleaver and the second interleaver, and mapping collected bits from the first interleaver and second interleaver onto one modulation symbol, wherein a size of the first interleaver is equal to a size of the second interleaver.