Patent ID: 8516334
Filing Date: 2013-08-20
Classification: H03M,H04L

Abstract:
1. A method for channel coding and modulation mapping for hybrid automatic repeat request of a low density parity check code, comprising the following steps of: (a) performing structured low density parity check encoding of an information bit sequence of length K as the input of a channel encoder, and sending a generated codeword to a hybrid automatic repeat request buffer; (b) rearranging the said codeword bits of a low density parity check hybrid automatic repeat request mother code in the hybrid automatic repeat request buffer, and sequentially selecting codeword bits to generate a binary sequence of a hybrid automatic repeat request packet; (c) mapping the codeword bits of the hybrid automatic repeat request packet to a constellation, wherein the high significant bits in the encoding block of the hybrid automatic repeat request packet are mapped to high reliability bits in the constellation.