TRANSMITTING APPARATUS AND INTERLEAVING METHOD THEREOF

    公开(公告)号:US20190386684A1

    公开(公告)日:2019-12-19

    申请号:US16556702

    申请日:2019-08-30

    Abstract: A transmitting apparatus is provided. The transmitting apparatus includes: an encoder configured to generate a low-density parity check (LDPC) codeword by LDPC encoding of input bits based on a parity check matrix including information word bits and parity bits, the LDPC codeword including a plurality of bit groups each including a plurality of bits; an interleaver configured to interleave the LDPC codeword; and a modulator configured to map the interleaved LDPC codeword onto a modulation symbol, wherein the interleaver is further configured to interleave the LDPC codeword such that a bit included in a predetermined bit group from among the plurality of bit groups constituting the LDPC codeword onto a predetermined bit of the modulation symbol.

    METHOD AND APPARATUS FOR ENCODING AND DECODING LOW DENSITY PARITY CHECK CODES

    公开(公告)号:US20180026660A1

    公开(公告)日:2018-01-25

    申请号:US15722335

    申请日:2017-10-02

    CPC classification number: H03M13/1165 H03M13/1185 H03M13/255

    Abstract: A transmitting apparatus includes: a low density parity check (LDPC) encoder configured to encode information bits to generate parity bits based on a parity check matrix according to a code rate of 8/15 and a code length of 64800; an interleaver configured to interleave an LDPC codeword including the information bits and parity bits; and a mapper configured to map the interleaved LDPC codeword onto constellation points, wherein the parity check matrix comprises an information matrix part corresponding to the information bits and a parity matrix part corresponding to the parity bits, and the information matrix part is defined by a specific table indicating indices of rows at which a value “1” is positioned in a 0-th column of an i-th column group in the parity check matrix.

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