公开(公告)号：US20180019764A1

公开(公告)日：2018-01-18

申请号：US15703822

申请日：2017-09-13

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：US20180006663A1

公开(公告)日：2018-01-04

申请号：US15709191

申请日：2017-09-19

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung-Ik PARK ,  Heung-Mook KIM ,  Sun-Hyoung KWON ,  Nam-Ho HUR

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

CPC classification number: H03M13/1102 ,  H03M13/116 ,  H03M13/1177 ,  H03M13/1185 ,  H03M13/255 ,  H03M13/616

Abstract: A low density parity check (LDPC) encoder, an LDPC decoder, and an LDPC encoding method are disclosed. The LDPC encoder includes first memory, second memory, and a processor. The first memory stores an LDPC codeword having a length of 64800 and a code rate of 4/15. The second memory is initialized to 0. The processor generates the LDPC codeword corresponding to information bits by performing accumulation with respect to the second memory using a sequence corresponding to a parity check matrix (PCM).

公开(公告)号：US20170279550A1

公开(公告)日：2017-09-28

申请号：US15461231

申请日：2017-03-16

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung-Ik PARK ,  Sun-Hyoung KWON ,  Jae-Young LEE ,  Heung-Mook KIM ,  Nam-Ho HUR

IPC: H04H20/42 ,  H04L1/00 ,  H04L27/26

CPC classification number: H04H20/42 ,  H04H20/426 ,  H04H60/07 ,  H04H60/73 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/007 ,  H04L1/0071 ,  H04L1/0075 ,  H04L27/2601 ,  H04L27/2615 ,  Y02D70/00 ,  Y02D70/166 ,  Y02D70/168

Abstract: An apparatus and method for generating a broadcast signal frame using enhanced layer dummy values are disclosed. An apparatus for generating broadcast signal frame according to an embodiment of the present invention includes a combiner configured to generate a multiplexed signal by combining a core layer signal and an enhanced layer signal; a power normalizer configured to reduce the power of the multiplexed signal to a power level corresponding to the core layer signal; a time interleaver configured to generate a time-interleaved signal by performing interleaving that is applied to both the core layer signal and the enhanced layer signal; and a frame builder configured to generate a broadcast signal frame including a preamble for signaling time interleaver information corresponding to the time interleaver, the time interleaver uses one of time interleaver groups, and enhanced layer data corresponding to the one of the time interleaver groups include dummy values.

公开(公告)号：US20170272692A1

公开(公告)日：2017-09-21

申请号：US15532061

申请日：2016-03-08

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jae-Young LEE ,  Sung-Ik PARK ,  Sun-Hyoung KWON ,  Heung-Mook KIM

IPC: H04N7/081 ,  H04N19/187 ,  H04N5/445 ,  H04N21/236 ,  H04N3/28 ,  H04L27/26 ,  H04N21/2343

CPC classification number: H04N7/081 ,  H04H20/42 ,  H04L1/00 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0065 ,  H04L1/007 ,  H04L1/0071 ,  H04L27/26 ,  H04L27/2601 ,  H04N3/28 ,  H04N5/445 ,  H04N19/187 ,  H04N21/2343 ,  H04N21/234327 ,  H04N21/236 ,  H04N21/2383

Abstract: An apparatus and method for broadcast signal frame using layered division multiplexing are disclosed. An apparatus for generating broadcast signal frame according to an embodiment of the present invention includes a combiner configured to generate a multiplexed signal by combining a core layer signal and an enhanced layer signal at different power levels; a power normalizer configured to reduce the power of the multiplexed signal to a power level corresponding to the core layer signal; a time interleaver configured to generate a time-interleaved signal by performing interleaving that is applied to both the core layer signal and the enhanced layer signal; and a frame builder configured to generate a broadcast signal frame including a preamble for signaling, size information of Physical Layer Pipes (PLPs) and time interleaver information shared by the core layer signal and the enhanced layer signal.

公开(公告)号：US20170201336A1

公开(公告)日：2017-07-13

申请号：US15323944

申请日：2015-07-03

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  R&DB FOUNDATION, KOREA MARITIME AND OCEAN UNIVERSITY

Inventor： Sung-Ik PARK ,  Sun-Hyoung KWON ,  Jeong-Chang KIM ,  Jae-Young LEE ,  Heung-Mook KIM ,  Nam-Ho HUR

IPC: H04H20/42 ,  H04L27/26 ,  H04L1/00

CPC classification number: H04H20/423 ,  H04H20/42 ,  H04J11/004 ,  H04L1/0071 ,  H04L27/26 ,  H04L27/2613 ,  H04L27/3488 ,  H04L69/323 ,  Y02D70/00 ,  Y02D70/168

Abstract: A broadcast signal transmission apparatus and method using layered division multiplexing are disclosed. A broadcast signal transmission apparatus according to an embodiment of the present invention includes a combiner configured to generate a multiplexed signal by combining a core layer signal and an enhanced layer signal at different power levels; a power normalizer configured to reduce the power of the multiplexed signal to a power level corresponding to the core layer signal; a time interleaver configured to generate a time-interleaved signal by performing interleaving that is applied to both the core layer signal and the enhanced layer signal; a frame builder configured to generate a broadcast signal frame using the time-interleaved signal; and an orthogonal frequency division multiplexing (OFDM) transmitter configured to generate a pilot signal that is shared by a core layer corresponding to the core layer signal and an enhanced layer corresponding to the enhanced layer signal.

公开(公告)号：US20170149447A1

公开(公告)日：2017-05-25

申请号：US15425692

申请日：2017-02-06

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung-Ik PARK ,  Heung-Mook KIM ,  Sun-Hyoung KWON ,  Nam-Ho HUR

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

CPC classification number: H03M13/1165 ,  H03M13/036 ,  H03M13/2792 ,  H03M13/6505 ,  H04L1/0043 ,  H04L1/0057 ,  H04L1/0058

Abstract: A low density parity check (LDPC) encoder, an LDPC decoder, and an LDPC encoding method are disclosed. The LDPC encoder includes first memory, second memory, and a processor. The first memory stores an LDPC codeword having a length of 16200 and a code rate of 4/15. The second memory is initialized to 0. The processor generates the LDPC codeword corresponding to information bits by performing accumulation with respect to the second memory using a sequence corresponding to a parity check matrix (PCM).

公开(公告)号：US20170126250A1

公开(公告)日：2017-05-04

申请号：US15374609

申请日：2016-12-09

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung-Ik PARK ,  Sun-Hyoung KWON ,  Jae-Young LEE ,  Heung-Mook KIM ,  Nam-Ho HUR

IPC: H03M13/27 ,  H03M13/11

CPC classification number: H03M13/2792 ,  G06F11/1076 ,  H03M13/1102 ,  H03M13/1151 ,  H03M13/1165 ,  H03M13/255 ,  H03M13/2739 ,  H03M13/2778 ,  H03M13/6552

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 64800 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 64-symbol mapping.

公开(公告)号：US20170085339A1

公开(公告)日：2017-03-23

申请号：US15368287

申请日：2016-12-02

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung-Ik PARK ,  Sun-Hyoung KWON ,  Jae-Young LEE ,  Heung-Mook KIM ,  Nam-Ho HUR

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

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

Abstract: A modulator and a modulation method using a non-uniform 16-symbol signal constellation are disclosed. The modulator includes a memory and a processor. The memory receives a codeword corresponding to a low-density parity check (LDPC) code having a code rate of 2/15. The processor maps the codeword to 16 symbols of the non-uniform 16-symbol signal constellation on a 4-bit basis.

公开(公告)号：US20170054452A1

公开(公告)日：2017-02-23

申请号：US15346646

申请日：2016-11-08

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung-Ik PARK ,  Sun-Hyoung KWON ,  Jae-Young LEE ,  Heung-Mook KIM ,  Nam-Ho HUR

IPC: H03M13/11 ,  H04L27/34 ,  H03M13/00 ,  H04L1/00 ,  H03M13/25 ,  H03M13/27

CPC classification number: H03M13/1165 ,  H03M13/255 ,  H03M13/2792 ,  H03M13/616 ,  H03M13/6552 ,  H04L1/0041 ,  H04L1/0042 ,  H04L1/0057 ,  H04L1/0058 ,  H04L1/0071 ,  H04L27/3422

Abstract: A modulator and a modulation method using a non-uniform 16-symbol signal constellation are disclosed. The modulator includes a memory and a processor. The memory receives a codeword corresponding to a low-density parity check (LDPC) code having a code rate of 3/15. The processor maps the codeword to 16 symbols of the non-uniform 16-symbol signal constellation on a 4-bit basis.

Abstract translation: 公开了一种使用非均匀16符号信号星座的调制器和调制方法。 调制器包括存储器和处理器。 存储器接收与码率为3/15的低密度奇偶校验（LDPC）码对应的码字。 处理器将码字映射为4比特的16位符号的不均匀16符号信号星座。

公开(公告)号：US20170026223A1

公开(公告)日：2017-01-26

申请号：US15124646

申请日：2015-02-25

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung-Ik PARK ,  Jae-Young LEE ,  Sun-Hyoung KWON ,  Heung-Mook KIM ,  Nam-Ho HUR

IPC: H04L27/26 ,  H04L1/00

CPC classification number: H04L1/0071 ,  H03M13/27 ,  H04J11/004 ,  H04L1/00 ,  H04L27/3488 ,  H04W52/346

Abstract: An apparatus and method for multiplexing signals using layered division multiplexing are disclosed. A signal multiplexing apparatus according to an embodiment of the present invention includes a combiner configured to combine a core layer signal and an enhanced layer signal at different power levels to generate a multiplexed signal, a power normalizer configured to reduce power of the multiplexed signal to power corresponding to the core layer signal, and a time interleaver configured to perform interleaving applied to both the core layer signal and the enhanced layer signal.

Abstract translation: 公开了一种使用分层复用复用信号的装置和方法。 根据本发明实施例的信号多路复用装置包括组合器，其被配置为组合核心层信号和不同功率电平的增强层信号以产生多路复用信号;功率归一化器，被配置为将多路复用信号的功率降低到功率 对应于核心层信号，以及时间交织器，被配置为执行应用于核心层信号和增强层信号两者的交织。