公开(公告)号：US10284228B2

公开(公告)日：2019-05-07

申请号：US15495860

申请日：2017-04-24

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Bo-Mi Lim ,  Sun-Hyoung Kwon ,  Sung-Ik Park ,  Jae-Young Lee ,  Heung-Mook Kim ,  Nam-Ho Hur

IPC: H03M13/27 ,  H04L1/00 ,  H04L12/863

Abstract: An apparatus and method for time interleaving corresponding to hybrid time interleaving mode are disclosed. An apparatus for time interleaving according to an embodiment of the present invention includes a twisted block interleaver configured to perform intra-subframe interleaving corresponding to time interleaving blocks; and a convolutional delay line configured to perform inter-subframe interleaving using an output of the twisted block interleaver.

公开(公告)号：US09793926B2

公开(公告)日：2017-10-17

申请号：US14718013

申请日：2015-05-20

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung-Ik Park ,  Sun-Hyoung Kwon ,  Bo-Mi Lim ,  Jae-Young Lee ,  Heung-Mook Kim ,  Nam-Ho Hur

IPC: H03M13/27 ,  H03M13/11 ,  H03M13/25 ,  H04L1/00

CPC classification number: H03M13/2767 ,  H03M13/1165 ,  H03M13/255 ,  H03M13/2778 ,  H03M13/2792 ,  H04L1/0057 ,  H04L1/0071 ,  H04L2001/0093

Abstract: A bit interleaver, a bit-interleaved coded modulation (BICM) device and a bit interleaving method are disclosed herein. The bit interleaver includes a first memory, a processor, and a second memory. The first memory stores a low-density parity check (LDPC) codeword having a length of 16200 and a code rate of 2/15. The processor generates an interleaved codeword by interleaving the LDPC codeword on a bit group basis. The size of the bit group corresponds to a parallel factor of the LDPC codeword. The second memory provides the interleaved codeword to a modulator for 64-symbol mapping.

公开(公告)号：US09602139B2

公开(公告)日：2017-03-21

申请号：US14719245

申请日：2015-05-21

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung-Ik Park ,  Sun-Hyoung Kwon ,  Bo-Mi Lim ,  Jae-Young Lee ,  Heung-Mook Kim ,  Nam-Ho Hur

IPC: H03M13/00 ,  H03M13/27 ,  H03M13/11 ,  H04L1/00

CPC classification number: H03M13/1165 ,  H03M13/1105 ,  H03M13/17 ,  H03M13/2792 ,  H03M13/6522 ,  H04L1/0041 ,  H04L1/0071

Abstract: A bit interleaver, a bit-interleaved coded modulation (BICM) device and a bit interleaving method are disclosed herein. The bit interleaver includes a first memory, a processor, and a second memory. The first memory stores a low-density parity check (LDPC) codeword having a length of 16200 and a code rate of 3/15. The processor generates an interleaved codeword by interleaving the LDPC codeword on a bit group basis. The size of the bit group corresponds to a parallel factor of the LDPC codeword. The second memory provides the interleaved codeword to a modulator for 16-symbol mapping.

公开(公告)号：US09600367B2

公开(公告)日：2017-03-21

申请号：US14716820

申请日：2015-05-19

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung-Ik Park ,  Sun-Hyoung Kwon ,  Bo-Mi Lim ,  Jae-Young Lee ,  Heung-Mook Kim ,  Nam-Ho Hur

IPC: G06F11/10 ,  H03M13/11 ,  H03M13/25 ,  H03M13/27 ,  G06F11/32

CPC classification number: H03M13/2792 ,  G06F11/1076 ,  H03M13/1102 ,  H03M13/1148 ,  H03M13/116 ,  H03M13/1185 ,  H03M13/255 ,  H03M13/2778 ,  H03M13/616 ,  H03M13/6552 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0058 ,  H04L1/0071

Abstract: A bit interleaver, a bit-interleaved coded modulation (BICM) device and a bit interleaving method are disclosed herein. The bit interleaver includes a first memory, a processor, and a second memory. The first memory stores a low-density parity check (LDPC) codeword having a length of 16200 and a code rate of 4/15. The processor generates an interleaved codeword by interleaving the LDPC codeword on a bit group basis. The size of the bit group corresponds to a parallel factor of the LDPC codeword. The second memory provides the interleaved codeword to a modulator for 16-symbol mapping.