公开(公告)号：US20200059676A1

公开(公告)日：2020-02-20

申请号：US16525107

申请日：2019-07-29

Applicant: LG ELECTRONICS INC.

Inventor： Sangchul MOON ,  Woosuk KO ,  Sungryong HONG ,  Jinwoo KIM ,  Jongwoong SHIN

IPC: H04N21/2362 ,  H04L27/26 ,  H04L5/00 ,  H04L1/00 ,  H04B7/0456 ,  H03M13/00 ,  H03M13/27 ,  H03M13/11 ,  H04N21/61 ,  H04N21/438 ,  H04N21/434 ,  H04N21/414 ,  H04N21/2383 ,  H04N21/2381 ,  H04N21/236

Abstract: The present invention provides an apparatus of transmitting broadcast signals, the apparatus including, an encoder for encoding service data, a frame builder for building at least one signal frame by mapping the encoded service data, a modulator for modulating data in the built at lease one signal frame by an Orthogonal Frequency Division Multiplexing, OFDM, scheme and a transmitter for transmitting the broadcast signals having the modulated data.

公开(公告)号：US20200059248A1

公开(公告)日：2020-02-20

申请号：US16347508

申请日：2017-11-03

Applicant: LG Electronics Inc.

Inventor： Kwangseok NOH ,  Bonghoe KIM ,  Jinwoo KIM ,  Ilmu BYUN ,  Jongwoong SHIN ,  Seunggye HWANG

IPC: H03M13/15 ,  H03M13/11

Abstract: Disclosed are a method for dividing a transport block of a low density parity check (LDPC) code and an apparatus therefor. A method for dividing a transport block of an LDPC code according to the present disclosure can improve the performance of the LDPC code by dividing the transport block using a minimum number of code blocks. In addition, it is possible to minimize shortening bits by making the size of some of the code blocks smaller than the size of the other code blocks. Further, it is possible to prevent performance degradation due to a minimum size code block by minimizing the number of the code blocks and performing shortening on a large size code block.

公开(公告)号：US20200021860A1

公开(公告)日：2020-01-16

申请号：US16522284

申请日：2019-07-25

Applicant: LG ELECTRONICS INC.

Inventor： Sangchul MOON ,  Woosuk KO ,  Sungryong HONG ,  Jinwoo KIM ,  Jongwoong SHIN

IPC: H04N21/2362 ,  H04L27/26 ,  H04L5/00 ,  H04L1/00 ,  H04B7/0456 ,  H03M13/00 ,  H03M13/27 ,  H03M13/11 ,  H04N21/61 ,  H04N21/438 ,  H04N21/434 ,  H04N21/414 ,  H04N21/2383 ,  H04N21/2381 ,  H04N21/236

Abstract: The present invention provides an apparatus of transmitting broadcast signals, the apparatus including, an encoder for encoding service data, a frame builder for building at least one signal frame by mapping the encoded service data, a modulator for modulating data in the built at lease one signal frame by an Orthogonal Frequency Division Multiplexing, OFDM, scheme and a transmitter for transmitting the broadcast signals having the modulated data.

公开(公告)号：US20190166611A1

公开(公告)日：2019-05-30

申请号：US16247842

申请日：2019-01-15

Applicant: LG ELECTRONICS INC.

Inventor： Kwangseok NOH ,  Bonghoe KIM ,  Jongwoong SHIN ,  Hyunsoo KO ,  Dongkyu KIM

IPC: H04W72/12 ,  H04W72/00

Abstract: In a wireless communication system, a physical broadcast channel (PBCH) is encoded based on a Polar code and then is transmitted. Half-frame information within the PBCH is mapped to a bit position 247 among bit positions of the Polar code and synchronization signal and PBCH block (SSB) index information within the PBCH is mapped to bit positions 253, 254, and 255 of the Polar code.

公开(公告)号：US20180254855A1

公开(公告)日：2018-09-06

申请号：US15971238

申请日：2018-05-04

Applicant: LG ELECTRONICS INC.

Inventor： Jongwoong SHIN ,  Woosuk KO ,  Jaehyung KIM ,  Jongseob BAEK ,  Sungryong HONG

IPC: H04L1/00 ,  H04L27/26 ,  H04L1/04 ,  H04J11/00 ,  H04L12/18 ,  H04B1/10 ,  H04L5/00

CPC classification number: H04L1/0071 ,  H04B1/10 ,  H04J11/004 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0052 ,  H04L1/007 ,  H04L1/0075 ,  H04L1/04 ,  H04L5/0023 ,  H04L5/005 ,  H04L12/18 ,  H04L27/2613 ,  H04L27/2627 ,  H04L27/2647 ,  H04L27/2649

Abstract: A broadcast signal transmitter includes a first Forward Error Correction (FEC) encoder configured to encode core layer data, a second FEC encoder configured to encode enhanced layer data, an injection level controller configured to control power ratio between the encoded core layer data and the encoded enhanced layer data, a combiner configured to combine the core layer data and the enhanced layer data and to output Layered Division Multiplexing (LDM) data, a power normalizer configured to normalize power of the outputted LDM data, a time interleaver configured to time-interleave the LDM data, a framer configured to generate a signal frame comprising a preamble and the time-interleaved LDM data, the preamble carrying signaling information, and a modulator configured to perform Orthogonal Frequency Division Multiplexing (OFDM) modulation on the generated signal frame.

公开(公告)号：US20180191464A1

公开(公告)日：2018-07-05

申请号：US15741167

申请日：2016-03-18

Applicant: LG ELECTRONICS INC.

Inventor： Jongwoong SHIN ,  Jaehyung KIM ,  Sungryong HONG ,  Jongseob BAEK

IPC: H04L1/00

CPC classification number: H04L1/0071 ,  H04B7/0413 ,  H04L1/0041 ,  H04L1/0057 ,  H04L1/0061 ,  H04L1/0075 ,  H04L1/04 ,  H04L5/0007 ,  H04L27/2602 ,  H04L27/2608 ,  H04L27/2628 ,  H04L27/2647 ,  H04L27/2692 ,  H04L65/4076 ,  H04L65/607 ,  H04L65/80 ,  H04L2001/0093 ,  H04W72/0446

Abstract: A broadcast signal transmitting device according to an embodiment of the present invention may comprise: an encoder for encoding service data; a frame block for generating at least one signal frame including the encoded service data; a frequency interleaver for frequency interleaving data in at least one signal frame by using an interleaving sequence generated on the basis of a basic interleaving sequence and a symbol offset value; a modulator for modulating the frequency interleaved data by using an OFDM (Orthogonal Frequency Division Multiplex) technique; and a transmitting unit for transmitting broadcast signals including the modulated data.

公开(公告)号：US20180034587A1

公开(公告)日：2018-02-01

申请号：US15662966

申请日：2017-07-28

Applicant: LG ELECTRONICS INC.

Inventor： Bonghoe KIM ,  Jongwoong SHIN ,  Seunggye HWANG ,  Joonkui AHN

IPC: H04L1/00 ,  H03M13/13 ,  H03M13/27 ,  H03M7/40 ,  H03M13/00

CPC classification number: H04L1/0058 ,  H03M5/12 ,  H03M7/40 ,  H03M13/13 ,  H03M13/2792 ,  H03M13/6362 ,  H04L1/0057 ,  H04L1/0067 ,  H04L1/0071 ,  H04L1/1819 ,  H04L1/1861

Abstract: A method for performing polar encoding includes the steps of, if a length of a codeword is greater than 2x and smaller than 2x+1 determining whether encoding is performed by a polar encoder of size 2x or a polar encoder of size 2x+1 according to whether or not a length of the codeword is smaller than a prescribed value, and if the length of the codeword is smaller than the prescribed value, performing encoding by the polar encoder of the size 2x.

公开(公告)号：US20170257187A1

公开(公告)日：2017-09-07

申请号：US15599873

申请日：2017-05-19

Applicant: LG ELECTRONICS INC.

Inventor： Yonghak SUH ,  Sangchul MOON ,  Jongwoong SHIN ,  Woosuk KO ,  Sungryong HONG

IPC: H04L1/00

CPC classification number: H04L27/2649 ,  H03M13/1102 ,  H03M13/2792 ,  H04L1/0009 ,  H04L1/0023 ,  H04L1/0042 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0058 ,  H04L1/0065 ,  H04L1/0071 ,  H04L5/0007 ,  H04L27/12

Abstract: A method for transmitting broadcast signals, the method includes encoding service data; parity interleaving parity bits of the encoded service data; group-wise interleaving bit groups included in the parity interleaved service data according to a permutation order; block interleaving the group-wise interleaved bit groups with a set including a number of bit groups, wherein the number of bit groups included in the set corresponds to a modulation order, wherein the block interleaving includes row-wise writing bits of the group-wise interleaved bit groups in the set; and column-wise reading 1 bit from each row of the set; building at least one signal frame including the block interleaved service data; modulating data in the built at least one signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme; and transmitting the broadcast signals having the modulated data.

公开(公告)号：US20160294509A1

公开(公告)日：2016-10-06

申请号：US15091404

申请日：2016-04-05

Applicant: LG ELECTRONICS INC.

Inventor： Jongwoong SHIN ,  Woosuk KO ,  Jaehyung KIM ,  Jongseob BAEK ,  Sungryong HONG

IPC: H04L1/00 ,  H04L27/26 ,  H04L12/18

CPC classification number: H04L1/0071 ,  H04B1/10 ,  H04J11/004 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0052 ,  H04L1/007 ,  H04L1/0075 ,  H04L1/04 ,  H04L5/0023 ,  H04L5/005 ,  H04L12/18 ,  H04L27/2613 ,  H04L27/2627 ,  H04L27/2647 ,  H04L27/2649

Abstract: Disclosed herein is a broadcast signal transmitter. A broadcast signal transmitter according to an embodiment of the present invention includes a first BICM unit configured to FEC-encode the data of a core layer, a second BICM unit configured to FEC-encode the enhanced layer data, an LDM injection unit configured to combine the core layer data and the enhanced layer data and to output Layered Division Multiplexing (LDM) data, a time interleaver configured to time-interleave the LDM data, a framing unit configured to generate a signal frame including a preamble for carrying signaling information and the LDM data, and a waveform generation unit configured to generate a broadcast signal by performing OFDM modulation on the signal frame.

Abstract translation: 这里公开了一种广播信号发射机。 根据本发明实施例的广播信号发射机包括被配置为对核心层的数据进行FEC编码的第一BICM单元，被配置为对增强层数据进行FEC编码的第二BICM单元，被配置为组合的LDM注入单元 核心层数据和增强层数据以及输出层划分多路复用（LDM）数据，被配置为对LDM数据进行时间交织的时间交织器;被配置为生成包括用于承载信令信息的前同步码的信号帧的成帧单元， LDM数据和波形生成单元，被配置为通过对信号帧执行OFDM调制来生成广播信号。

公开(公告)号：US20160197688A1

公开(公告)日：2016-07-07

申请号：US14908304

申请日：2014-08-01

Applicant: LG ELECTRONICS INC.

Inventor： Sanchul MOON ,  Woosuk KO ,  Sungryong HONG ,  Jinwoo KIM ,  Jongwoong SHIN

IPC: H04H20/72 ,  H04L27/26 ,  H04N21/61 ,  H04B7/06 ,  H04L1/00 ,  H04H20/33 ,  H04B7/04

CPC classification number: H04N21/6112 ,  H03M13/036 ,  H03M13/1111 ,  H03M13/1165 ,  H03M13/118 ,  H03M13/136 ,  H03M13/152 ,  H03M13/255 ,  H03M13/2707 ,  H03M13/271 ,  H03M13/2778 ,  H03M13/2906 ,  H04B7/0413 ,  H04B7/068 ,  H04H20/72 ,  H04H60/73 ,  H04L1/0041 ,  H04L1/0057 ,  H04L1/0071 ,  H04L1/0075 ,  H04L27/2601 ,  H04L27/2605 ,  H04L27/2627 ,  H04L27/2649 ,  H04L2001/0093 ,  H04N21/23605 ,  H04N21/2383 ,  H04N21/4343

Abstract: The present invention provides a method of transmitting broadcast signals. The method includes, encoding Data Pipe, DP, data according to a code rate, wherein the encoding further includes Low-Density Parity-Check, LDPC, encoding the DP data, Bit interleaving the LDPC encoded DP data, and mapping the bit interleaved DP data onto constellations; building at least one signal frame by mapping the encoded DP data; and modulating data in the built signal frame by an Orthogonal Frequency Division Multiplexing, OFDM, method and transmitting the broadcast signals having the modulated data.

Abstract translation: 本发明提供一种发送广播信号的方法。 该方法包括：根据码率对数据管道，DP，数据进行编码，其中编码还包括低密度奇偶校验，LDPC，DP数据的编码，比特交织LDPC编码的DP数据，以及映射比特交织的DP 数据到星座; 通过映射编码的DP数据构建至少一个信号帧; 以及通过正交频分复用OFDM方法调制内置信号帧中的数据，并发送具有调制数据的广播信号。