TRANSMITTER AND PARITY PERMUTATION METHOD THEREOF

    公开(公告)号:US20210203357A1

    公开(公告)日:2021-07-01

    申请号:US17180969

    申请日:2021-02-22

    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.

    TRANSMITTER AND SHORTENING METHOD THEREOF
    34.
    发明申请
    TRANSMITTER AND SHORTENING METHOD THEREOF 审中-公开
    发射机及其发射方法

    公开(公告)号:US20160261374A1

    公开(公告)日:2016-09-08

    申请号:US15130181

    申请日:2016-04-15

    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 constitute Low Density Parity Check (LDPC) information bits including the outer-encoded bits and zero bits; and an LDPC encoder configured to encode the LDPC information bits, wherein the LDPC information bits are divided into a plurality of bit groups, and wherein the zero padder pads zero bits to at least some of the plurality of bit groups, each of which is formed of a same number of bits, to constitute the LDPC information bits based on a predetermined shortening pattern which provides that the some of the plurality of bit groups are not sequentially disposed in the LDPC information bits.

    Abstract translation: 提供发射机。 发射机包括:外部编码器,被配置为对输入比特进行编码以产生包括输入比特和奇偶校验比特的外部编码比特; 零填充器,被配置为构成包括外部编码比特和零比特的低密度奇偶校验(LDPC)信息比特; 以及LDPC编码器,被配置为对所述LDPC信息比特进行编码,其中所述LDPC信息比特被分成多个比特组,并且其中所述零填充器将零比特填充到所述多个比特组中的至少一些比特组, 以相同数量的比特来构成基于预定缩短模式的LDPC信息比特,该缩短模式规定多个比特组中的一些比特组不被顺序地置于LDPC信息比特中。

    TRANSMITTER AND SHORTENING METHOD THEREOF
    35.
    发明申请
    TRANSMITTER AND SHORTENING METHOD THEREOF 审中-公开
    发射机及其发射方法

    公开(公告)号:US20160261369A1

    公开(公告)日:2016-09-08

    申请号:US15058515

    申请日:2016-03-02

    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.

    Abstract translation: 提供发射机。 发射机包括:外部编码器,被配置为对输入比特进行编码以产生包括输入比特和奇偶校验比特的外部编码比特; 零填充器,被配置为生成多个比特组,每个比特组由相同数量的比特形成,根据码率和码率中的至少一个确定所述外部编码比特的数目是否满足预定数量的比特, 用于低密度奇偶校验(LDPC)编码的代码长度,如果外部编码比特的数量小于预定比特数,则对比特组中的某些比特填充零比特,并将外部编码比特 基于预定的缩短模式,从而构成LDPC信息比特; 以及LDPC编码器,被配置为对所述LDPC信息比特进行编码,其中在所述LDPC信息比特中未顺序设置的一些比特组中包括其中零比特被填补的一些比特。

    TRANSMITTER AND METHOD FOR GENERATING ADDITIONAL PARITY THEREOF
    36.
    发明申请
    TRANSMITTER AND METHOD FOR GENERATING ADDITIONAL PARITY THEREOF 审中-公开
    用于产生附加特征的发射机和方法

    公开(公告)号:US20160248544A1

    公开(公告)日:2016-08-25

    申请号:US15053101

    申请日:2016-02-25

    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 perform by group-wise interleaving a plurality of bit groups configuring the parity bits based on a group-wise interleaving pattern comprising a first pattern and a second pattern; a puncturer configured to puncture some of the parity-permutated parity bits; and an additional parity generator configured to select at least some of the punctured parity bits 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.

    Abstract translation: 提供发射机。 所述发射机包括:低密度奇偶校验(LDPC)编码器,其被配置为对输入比特进行编码,以生成包括当前帧中要发送的输入比特和奇偶校验比特的LDPC码字; 奇偶置换器,被配置为基于包括第一模式和第二模式的分组交织模式,通过以组方式交织构成所述奇偶校验位的多个位组来执行; 穿孔器,被配置为对某些奇偶校验位进行穿孔; 以及附加奇偶校验发生器,其被配置为基于所述第一模式和所述第二模式来选择所述穿孔奇偶校验位中的至少一些以产生要在当前帧的先前帧中发送的附加奇偶校验位。

    TRANSMITTER AND METHOD FOR GENERATING ADDITIONAL PARITY THEREOF

    公开(公告)号:US20210211227A1

    公开(公告)日:2021-07-08

    申请号:US17212389

    申请日:2021-03-25

    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 perform by group-wise interleaving a plurality of bit groups configuring the parity bits based on a group-wise interleaving pattern comprising a first pattern and a second pattern; a puncturer configured to puncture some of the parity-permutated parity bits; and an additional parity generator configured to select at least some of the punctured parity bits 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.

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