APPARATUSES AND METHODS FOR ENCODING AND DECODING OF PARITY CHECK CODES
    161.
    发明申请
    APPARATUSES AND METHODS FOR ENCODING AND DECODING OF PARITY CHECK CODES 有权
    编码和解码奇偶校验码的设备和方法

    公开(公告)号:US20140372826A1

    公开(公告)日:2014-12-18

    申请号:US14303856

    申请日:2014-06-13

    CPC classification number: H03M13/1165 H03M13/036

    Abstract: An encoding apparatus is provided. The encoding apparatus includes: a low density parity check (LDPC) encoder configured to generate an LDPC codeword formed of 16200 bits by performing LDPC encoding based on a parity check matrix, wherein the parity check matrix includes an information word sub-matrix and a parity sub-matrix, the information word sub-matrix being formed of a plurality of column groups each including 360 columns and being defined as a table indicating a position of one (1) present in each 360-th column.

    Abstract translation: 提供一种编码装置。 编码装置包括:低密度奇偶校验(LDPC)编码器,被配置为通过基于奇偶校验矩阵执行LDPC编码来生成由16200比特形成的LDPC码字,其中奇偶校验矩阵包括信息字子矩阵和奇偶校验 子矩阵,所述信息字子矩阵由多个列组形成,每个列组包括360列,并且被定义为指示存在于每个第360列中的一(1)的位置的表。

    TRANSMITTER AND PARITY PERMUTATION METHOD THEREOF

    公开(公告)号:US20230124403A1

    公开(公告)日:2023-04-20

    申请号:US17994846

    申请日:2022-11-28

    Abstract: A transmitter is provided. The transmitter includes: a Low Density Parity Check (LDPC) encoder configured to encode input bits to generate parity bits; a parity permutator configured to perform parity permutation by interleaving the parity bits and group-wise interleaving a plurality of bit groups including the interleaved parity bits; and a puncturer configured to puncture some of the parity bits in the group-wise interleaved bit groups, wherein the parity permutator group-wise interleaves the bit groups such that some of the bit groups are positioned at predetermined positions, respectively, and a remainder of the bit groups are positioned without an order within the group-wise interleaved bit groups.

    TRANSMITTING APPARATUS AND SIGNAL PROCESSING METHOD THEREOF

    公开(公告)号:US20220131644A1

    公开(公告)日:2022-04-28

    申请号:US17573190

    申请日:2022-01-11

    Abstract: A transmitting apparatus and a receiving apparatus are provided. The transmitting apparatus includes: an encoder configured to generate a low density parity check (LDPC) codeword by performing LDPC encoding; an interleaver configured to interleave the LDPC codeword; and a modulator configured to modulate the interleaved LDPC codeword according to a modulation method to generate a modulation symbol. The interleaver includes a block interleaver formed of a plurality of columns each comprising a plurality of rows, and the block interleaver is configured to divide the plurality of columns into at least two parts and interleave the LDPC codeword.

    TRANSMITTER AND METHOD FOR GENERATING ADDITIONAL PARITY THEREOF

    公开(公告)号:US20210351866A1

    公开(公告)日:2021-11-11

    申请号:US17324545

    申请日:2021-05-19

    Abstract: A transmitter is provided. The transmitter includes: a Low Density Parity Check (LDPC) encoder configured to encode input bits to generate an LDPC codeword including the input bits and parity bits to be transmitted in a current frame; a parity permutator configured to interleave the parity bits and group-wise interleave a plurality of parity bit groups configuring the interleaved parity bits based on a group-wise interleaving pattern including a first pattern and a second pattern to perform parity permutation; a puncturer configured to puncture at least some of the group-wise interleaved parity bit groups; and an additional parity generator configured to select at least some of the punctured parity bit groups to generate additional parity bits to be transmitted in a previous frame of the current frame, based on the first pattern and the second pattern.

    TRANSMITTING APPARATUS AND SIGNAL PROCESSING METHOD THEREOF

    公开(公告)号:US20210288671A1

    公开(公告)日:2021-09-16

    申请号:US17329779

    申请日:2021-05-25

    Abstract: A transmitting apparatus and a receiving apparatus are provided. The transmitting apparatus includes: an encoder configured to generate a low density parity check (LDPC) codeword by performing LDPC encoding; an interleaver configured to interleave the LDPC codeword; and a modulator configured to modulate the interleaved LDPC codeword according to a modulation method to generate a modulation symbol. The interleaver is formed of a plurality of columns each including a plurality of rows and includes a block interleaver configured to divide each of the plurality of columns into a first part and a second part and interleave the LDPC codeword, the number of rows constituting each column divided into the first part is determined differently depending upon the modulation method, wherein the number of rows constituting each column divided into the second part is determined depending upon the number of rows constituting each column divided into the first part.

    RECEIVER AND METHOD FOR PROCESSING A SIGNAL THEREOF

    公开(公告)号:US20210058191A1

    公开(公告)日:2021-02-25

    申请号:US17093105

    申请日:2020-11-09

    Abstract: A receiver is provided. The receiver includes: a first decoder configured to decode a superposition-coded signal by using a parity check matrix to generate Low Density Parity Check (LDPC) information word bits and first parity bits corresponding to a first layer signal; an encoder configured to encode the LDPC information word bits and the first parity bits to generate second parity bits, or encode the LDPC information word bits to generate the first parity bits and the second parity bits, by using the parity check matrix; and a second decoder configured to decode a signal which is generated by removing the first layer signal, corresponding to the LDPC information word bits, the first parity bits, and the second parity bits, from the superposition-coded signal, to reconstruct bits transmitted through the second layer signal.

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