TRANSMITTING APPARATUS AND INTERLEAVING METHOD THEREOF
    17.
    发明申请
    TRANSMITTING APPARATUS AND INTERLEAVING METHOD THEREOF 有权
    发送装置及其交换方法

    公开(公告)号:US20150341053A1

    公开(公告)日:2015-11-26

    申请号:US14716132

    申请日:2015-05-19

    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.

    Abstract translation: 提供发送装置。 发送装置包括:编码器,被配置为基于包括信息字比特和奇偶校验位的奇偶校验矩阵,通过输入比特的LDPC编码生成低密度奇偶校验(LDPC)码字,所述LDPC码字包括多个比特组 包括多个位; 配置为交织所述LDPC码字的交织器; 以及调制器,被配置为将交织的LDPC码字映射到调制符号,其中所述交织器还被配置为交织所述LDPC码字,使得包括在构成所述LDPC码字的所述多个比特组中的预定比特组中包括的比特到预定的 位的调制符号。

    TRANSMITTER AND SHORTENING METHOD THEREOF

    公开(公告)号:US20220094469A1

    公开(公告)日:2022-03-24

    申请号:US17541430

    申请日:2021-12-03

    Abstract: A transmitter is provided. The transmitter includes: an outer encoder configured to encode input bits to generate outer-encoded bits including the input bits and parity bits; a zero padder configured to generate a plurality of bit groups each of which is formed of a same number of bits, determine whether a number of the outer-encoded bits satisfies a predetermined number of bits required according to at least one of a code rate and a code length for Low Density Parity Check (LDPC) encoding, pads zero bits to some of the bits in the bit groups if the number of the outer-encoded bits is less than the predetermined number of bits, and maps the outer-encoded bits to remaining bits in the bit groups, based on a predetermined shortening pattern, thereby to constitute LDPC information bits; and an LDPC encoder configured to encode the LDPC information bits, wherein the some of the bits, in which zero bits are padded, are included in some of the bit groups which are not sequentially disposed in the LDPC information bits.

    TRANSMITTING APPARATUS AND INTERLEAVING METHOD THEREOF

    公开(公告)号:US20200343911A1

    公开(公告)日:2020-10-29

    申请号:US16925368

    申请日:2020-07-10

    Abstract: Provided is a signal interleaving method which includes: interleaving parity bits by encoding input bits based on a low density parity check (LDPC) code according to a code rate of 6/15 and a code length of 64800; splitting a codeword comprising the input bits and the interleaved parity bits into a plurality of bit groups; interleaving the plurality of bit groups according to a specific permutation order to provide an interleaved codeword; de-multiplexing bits of the interleaved codeword to generate data cells; mapping the data cells onto constellation points for 1024-quadrature amplitude modulation (QAM); and transmitting a signal based on the constellation points.

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