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公开(公告)号：US20230318629A1
公开(公告)日：2023-10-05
申请号：US18066710
申请日：2022-12-15
发明人： Se-ho MYUNG , Hong-sil Jeong , Kyung-joong Kim
CPC分类号： H03M13/2778 , H03M13/1165 , H03M13/255 , H03M13/2703 , H03M13/6552 , H03M13/6555 , H03M13/1102 , H03M13/1177 , H03M13/27 , H03M13/2707 , H03M13/271 , H03M13/616 , H04L1/0003
摘要： 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.
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公开(公告)号：US20230299793A1
公开(公告)日：2023-09-21
申请号：US18203149
申请日：2023-05-30
发明人： Se-ho MYUNG , Kyung-Joong Kim , Hong-Sil Jeong
CPC分类号： H03M13/1165 , H03M13/2778 , H03M13/255 , H03M13/271 , H03M13/2906 , H03M13/6362 , H03M13/1148 , H03M13/611 , H04L1/0057 , H04L1/0068 , H04L1/0071 , H04L27/206 , H03M13/152
摘要： 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 group-wise interleave a plurality of bit groups including the parity bits; and a puncturer configured to select some of the parity bits in the group-wise interleaved bit groups and puncture the selected parity bits, wherein the parity permutator group-wise interleaves the bit groups such that some of the bit groups at predetermined positions in the bit groups before the group-wise interleaving are positioned serially after the group-wise interleaving and a remainder of the bit groups before the group-wise interleaving are positioned without an order after the group-wise interleaving so that the puncturer selects parity bits included in the some of the bit groups sequentially and selects parity bits included in the remainder of the bit groups without an order.
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公开(公告)号：US20220286146A1
公开(公告)日：2022-09-08
申请号：US17329870
申请日：2021-05-25
发明人： Se-ho MYUNG , Hong-sil Jeong , Kyung-joong Kim
摘要： A transmitting apparatus is provided. The transmitting apparatus includes: an encoder configured to generate a low-density parity check (LDPC) codeword by LDPC encoding based on a parity check matrix; an interleaver configured to interleave the LDPC codeword; and a modulator configured to map the interleaved LDPC codeword onto a modulation symbol, wherein the modulator is further configured to map a bit included in a predetermined bit group from among a plurality of bit groups constituting the LDPC codeword onto a predetermined bit of the modulation symbol.
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公开(公告)号：US20220103190A1
公开(公告)日：2022-03-31
申请号：US17545150
申请日：2021-12-08
摘要： 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.
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公开(公告)号：US20210314209A1
公开(公告)日：2021-10-07
申请号：US17344014
申请日：2021-06-10
摘要： A transmitting apparatus is disclosed. The transmitting apparatus includes an encoder to perform channel encoding with respect to bits and generate a codeword, an interleaver to interleave the codeword, and a modulator to map the interleaved codeword onto a non-uniform constellation according to a modulation scheme, and the constellation may include constellation points defined based on various tables according to the modulation scheme.
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公开(公告)号：US20210306094A1
公开(公告)日：2021-09-30
申请号：US17217205
申请日：2021-03-30
摘要： A transmitting apparatus is provided. The transmitting apparatus includes: an encoder configured to perform a low-density parity check (LDPC) encoding on input bits using a parity check matrix to generate an LDPC codeword comprising information word bits and parity 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 modulator is further configured to map a bit included in a predetermined bit group from among a plurality of bit groups constituting the LDPC codeword onto a predetermined bit of the modulation symbol.
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公开(公告)号：US20210203357A1
公开(公告)日：2021-07-01
申请号：US17180969
申请日：2021-02-22
发明人： Hong-sil JEONG , Kyung-Joong KIM , Se-ho MYUNG
摘要： 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.
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公开(公告)号：US20200336356A1
公开(公告)日：2020-10-22
申请号：US16921201
申请日：2020-07-06
摘要： A transmitting apparatus is disclosed. The transmitting apparatus includes an encoder to perform channel encoding with respect to bits and generate a codeword, an interleaver to interleave the codeword, and a modulator to map the interleaved codeword onto a non-uniform constellation according to a modulation scheme, and the constellation may include constellation points defined based on various tables according to the modulation scheme.
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公开(公告)号：US20200099405A1
公开(公告)日：2020-03-26
申请号：US16697843
申请日：2019-11-27
摘要： A transmitting apparatus is disclosed. The transmitting apparatus includes an encoder to perform channel encoding with respect to bits and generate a codeword, an interleaver to interleave the codeword, and a modulator to map the interleaved codeword onto a non-uniform constellation according to a modulation scheme, and the constellation may include constellation points defined based on various tables according to the modulation scheme.
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公开(公告)号：US20190305802A1
公开(公告)日：2019-10-03
申请号：US16447220
申请日：2019-06-20
摘要： A transmitting apparatus is provided. The transmitting apparatus includes: an encoder configured to perform a low-density parity check (LDPC) encoding on input bits using a parity check matrix to generate an LDPC codeword comprising information word bits and parity 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 modulator is further configured to map a bit included in a predetermined bit group from among a plurality of bit groups constituting the LDPC codeword onto a predetermined bit of the modulation symbol.
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