Samsung Electronics Co., Ltd.

Gang-Mi Gil

Min-Goo Kim

Hun-Kee Kim

Min-Ho Shin

Nam-Yul Yu

Hwan-Min Kang

Chang-Hyun Kwak

An apparatus and method for rate dematching in a communication system are provided. The apparatus includes an input sequence generator, an error calculator, and a puncture/repetition determiner. The input sequence generator calculates if current input data among data, which are input in interleaved sequence, corresponds to any nsequence among before-interleaved sequence. The error calculator calculates an error for the current input data using the calculated sequence. The puncture/repetition determiner determines type of the current input data using the error for the current input data.

Apparatus and method for rate dematching in a communication system

An apparatus and method for generating an encoding matrix for a low density parity check (LDPC) code having a dual-diagonal matrix as a parity check matrix are disclosed. The apparatus and method construct an information sub-matrix of the encoding matrix with a predetermined number of square matrixes according to a predetermined code rate such that each of the square matrixes has columns and rows with a weight of 1 and has a different offset value, combine the square matrixes with the dual-diagonal matrix, and perform inter-row permutation on the information sub-matrix.

Apparatus and method for encoding a low density parity check code

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Suwon-si, South Korea

Gang-Mi Gil