FIELD: information technology.
SUBSTANCE: interleaving method to which time-first-mapping is applied for a plurality of channel-coded and rate-matched code blocks in a mobile communication system is provided. The interleaving method comprises steps for: determining sizes of a horizontal area and a vertical area of an interleaver; generating modulation groups with adjacent coded bits in the vertical direction according to the modulation scheme; sequentially writing the modulation groups in the horizontal area on a row-by-row basis; and sequentially reading the coded bits written in the interleaver in the vertical area on a column-by-column basis.
EFFECT: high reliability of receiving transmission data in a mobile communication system.
21 cl, 22 dwg
