公开(公告)号：US20160049998A1

公开(公告)日：2016-02-18

申请号：US14881957

申请日：2015-10-13

Applicant: LG ELECTRONICS INC.

Inventor： Jinyong CHOI ,  Byounggill KIM ,  Woochan KIM ,  Jaehyung KIM ,  Woosuk KO ,  Sungryong HONG ,  Chulkyu MUN ,  Jaeho HWANG ,  Jongseob BAEK ,  Kookyeon KWAK ,  Sangchul MOON

IPC: H04B7/04 ,  H04L27/20

CPC classification number: H04H20/44 ,  H04B7/0413 ,  H04B7/0456 ,  H04B7/10 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0065 ,  H04L1/0071 ,  H04L1/06 ,  H04L5/0007 ,  H04L5/0023 ,  H04L27/2046 ,  H04L27/34

Abstract: The present invention provides a method of transmitting broadcast signals. The method includes, formatting input streams into Data Pipe, DP, data; Low-Density Parity-Check, LDPC, encoding the DP data according to a code rate; bit interleaving the LDPC encoded DP data; mapping the bit interleaved DP data onto constellations according to one of QAM (Quadrature Amplitude Modulation), NUQ (Non-Uniform QAM) or NUC (Non-Uniform Constellation); Multi-Input Multi-Output, MIMO, encoding the mapped DP data by using a MIMO encoding matrix having a MIMO encoding parameter; building at least one signal frame by mapping the MIMO 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。 该方法包括将输入流格式化为数据管道，DP，数据; 低密度奇偶校验LDPC，根据码率对DP数据进行编码; 比特交织LDPC编码的DP数据; 根据QAM（正交幅度调制），NUQ（Non-Uniform QAM）或NUC（Non-Uniform Constellation）之一将位交织的DP数据映射到星座上; 多输入多输出MIMO，通过使用具有MIMO编码参数的MIMO编码矩阵对映射的DP数据进行编码; 通过映射MIMO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。

公开(公告)号：US20150358941A1

公开(公告)日：2015-12-10

申请号：US14758923

申请日：2014-05-15

Applicant: LG ELECTRONICS INC.

Inventor： Jaeho HWANG ,  Byounggill KIM ,  Woochan KIM ,  Jaehyung KIM ,  Sungryong HONG ,  Chulkyu MUN ,  Jinyong CHOI ,  Jongseob BAEK ,  Kookyeon KWAK ,  Woosuk KO

IPC: H04W72/00 ,  H04L5/00 ,  H04W4/06

CPC classification number: H04W72/005 ,  H04H20/71 ,  H04L5/0007 ,  H04L5/0044 ,  H04N21/236 ,  H04N21/434 ,  H04W4/06

Abstract: The present invention provides a method for transmitting broadcast signal. The method for transmitting a broadcast signal according to the present invention comprises the steps of: demultiplexing at least one input stream into a plurality of DPs (Data Pipes) wherein the step of demultiplexing includes the steps of dividing the input stream into a plurality of DPs in which data of the plurality of DPs include one or more consecutive input packets, segmenting the data of the plurality of DPs into data units each having the same length as that of a payload of a BB frame, cyclic-shifting the input packets of the divided data, allocating the cyclic-shifted input packets to the payload of the BB frame, and inserting a header before the payload of the BB frame; and processing and transmitting the data of the plurality of DPs per DP.

Abstract translation: 本发明提供一种发送广播信号的方法。 根据本发明的用于发送广播信号的方法包括以下步骤：将至少一个输入流解复用为多个DP（数据管道），其中解复用步骤包括以下步骤：将输入流划分为多个DP 其中所述多个DP的数据包括一个或多个连续输入分组，将所述多个DP的数据分段成每个具有与BB帧的有效载荷相同的长度的数据单元，循环移位所述输入分组的输入分组 将循环移位的输入分组分配给BB帧的有效载荷，并在BB帧的有效载荷之前插入报头; 并且每DP处理和发送多个DP的数据。

公开(公告)号：US20150020143A1

公开(公告)日：2015-01-15

申请号：US14328158

申请日：2014-07-10

Applicant: LG ELECTRONICS INC.

Inventor： Woochan KIM ,  Sungryong HONG ,  Jongseob BAEK ,  Woosuk KO ,  Chulkyu MUN

IPC: H04N21/2383 ,  H04N21/2368 ,  H04N21/434

CPC classification number: H04L5/0053 ,  H04L1/0042 ,  H04L1/0048 ,  H04L1/0057 ,  H04L1/0071 ,  H04L27/2601 ,  H04L2001/0093 ,  H04N5/4401 ,  H04N21/23611 ,  H04N21/23614 ,  H04N21/2365 ,  H04N21/6112

Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for transmitting broadcast signals comprises an encoder for encoding DP (Data Pipe) data corresponding to each of a plurality of DPs, a mapper for mapping the encoded DP data onto constellations, a time interleaver for time interleaving the mapped DP data, a frame builder for building at least one signal frame including the time interleaved DP data, a phase distortion unit for performing a phase distortion of at least one broadcast signal having the built at least one signal frame, a modulator for modulating the at least one broadcast signal by an OFDM (Orthogonal Frequency Division Multiplex) scheme and a transmitter for transmitting the at least one broadcast signal.

Abstract translation: 公开了一种用于发送广播信号的方法和装置。 用于发送广播信号的装置包括编码器，用于对应于多个DP中的每一个的DP（数据管道）数据，用于将编码的DP数据映射到星座上的映射器，用于时间交织映射的DP数据的时间交织器， 构建器，用于构建包括时间交替的DP数据的至少一个信号帧，用于执行具有构建的至少一个信号帧的至少一个广播信号的相位失真的相位失真单元，用于通过以下方式调制所述至少一个广播信号的调制器： OFDM（正交频分复用）方案和用于发送所述至少一个广播信号的发射机。

公开(公告)号：US20140348053A1

公开(公告)日：2014-11-27

申请号：US14458030

申请日：2014-08-12

Applicant: LG ELECTRONICS INC.

Inventor： Wongyu SONG ,  Byounggill KIM ,  Chulkyu MUN ,  Inhwan CHOI ,  Jinwoo KIM

IPC: H04H20/57 ,  H04L1/00 ,  H04H20/95

CPC classification number: H04H20/57 ,  H04H20/95 ,  H04L1/0071

Abstract: The disclosed method for processing a digital broadcast signal comprises encoding signaling information for mobile service data of the mobile service, the signaling information including first signaling data which includes transmission parameters and second signaling data which contains cross layer information between a physical layer and a upper layer, formatting a data group including known data, the first signal data and the mobile service data and transmitting the digital broadcast signal including data in the data group, wherein the mobile service in the digital broadcast signal is transmitted via first transmission mode or second transmission mode, wherein the slot is a basic time period for multiplexing of the mobile service data and main service data according to the first or second transmission mode, wherein the first signaling data includes slot indicating information identifying whether the slot is a slot for the first transmission mode or a slot for the second transmission mode.

Abstract translation: 所公开的处理数字广播信号的方法包括编码用于移动业务的移动业务数据的信令信息，所述信令信息包括包括传输参数的第一信令数据和包含物理层和上层之间的交叉层信息的第二信令数据 格式化包括已知数据的数据组，第一信号数据和移动业务数据，并发送包括数据组中的数据的数字广播信号，其中数字广播信号中的移动业务经由第一传输模式或第二传输模式 其中，所述时隙是用于根据所述第一或第二传输模式复用所述移动业务数据和主业务数据的基本时间段，其中，所述第一信令数据包括用于标识所述时隙是否是所述第一发送模式的时隙的时隙 或用于第二传输的槽 模式。

公开(公告)号：US20210120376A1

公开(公告)日：2021-04-22

申请号：US17133242

申请日：2020-12-23

Applicant: LG ELECTRONICS INC.

Inventor： Jaehyung KIM ,  Woosuk KO ,  Chulkyu MUN ,  Sungryong HONG

IPC: H04W4/06 ,  H04L5/00 ,  H04W52/54 ,  H04L27/26 ,  H04W52/32

Abstract: A device includes a tuner configured to tune a broadcast signal; a pilot detector configured to detect pilots in the tuned broadcast signal; a de-framer configured to parse a signal frame of the broadcast signal. Further, the signal frame carries Physical Layer Pipe (PLP) data, and the signal frame includes a preamble and at least one subframe. The device also includes a decoder configured to decode the PLP data.

公开(公告)号：US20200322637A1

公开(公告)日：2020-10-08

申请号：US16884152

申请日：2020-05-27

Applicant: LG Electronics Inc.

Inventor： Chulkyu MUN ,  Jinwoo KIM ,  Inhwan CHOI ,  Byounggill KIM ,  Wongyu SONG

IPC: H04N19/66 ,  H04L27/06 ,  H04L1/00 ,  H04L25/02 ,  H03M13/27 ,  H03M13/29 ,  H03M13/35 ,  H04N21/2383 ,  H04N21/438 ,  H04N21/61 ,  H04L29/00 ,  H04N7/24 ,  H04N21/2389

Abstract: A transmitting system, receiving system, and a method of processing broadcast signals are disclosed. The method for processing a broadcast signal in a broadcast receiver comprises receiving a DTV signal including a data group, the data group including mobile service data, segmented known data sequences, long known data sequences and transmission parameter data, compensating carrier frequency offset of the DTV signal and channel-equalizing the carrier frequency offset compensated DTV signal using at least one of the long known data sequences and segmented known data sequences in the data group of the DTV signal, wherein the channel-equalizing includes performing a Error Correction (FEC) decoding on data located between the segmented known data sequences, and. estimating Channel Impulse Response (CIR) using the FEC decoded data as known data.

公开(公告)号：US20200153668A1

公开(公告)日：2020-05-14

申请号：US16742225

申请日：2020-01-14

Applicant: LG Electronics Inc.

Inventor： Jaehyung KIM ,  Chulkyu MUN ,  Woosuk KO ,  Jongseob BAEK ,  Sungryong HONG

IPC: H04L27/26 ,  H04L1/00 ,  H04W72/00 ,  H04L5/00

Abstract: A broadcast signal receiver includes a tuner for tuning a broadcast signal, a reference signal detector for detecting pilots from the tuned broadcast signal, a de-framer for de-framing a signal frame of the broadcast signal and deriving service data based on a number of carriers of the signal frame, and a decoder for performing error correction process on the derived service data.

公开(公告)号：US20180310036A1

公开(公告)日：2018-10-25

申请号：US16011038

申请日：2018-06-18

Applicant: LG ELECTRONICS INC.

Inventor： Chulkyu MUN ,  Jaehyung KIM ,  Hochul JUNG ,  Woosuk KO ,  Sungryong HONG

IPC: H04N21/2383 ,  H04B7/0413 ,  H04N21/2389 ,  H04L27/26 ,  H04H20/33

CPC classification number: H04N21/2383 ,  H04B7/0413 ,  H04H20/33 ,  H04L27/2602 ,  H04L27/2618 ,  H04N21/2389

Abstract: A method for transmitting broadcast signals by an apparatus for transmitting broadcast signals, the method includes encoding data which is carried by a Data Pipe, DP; bit interleaving the encoded data; Multiple Input Multiple Output, MIMO, processing the bit interleaved data; time interleaving the MIMO processed data; encoding signaling data; building at least one signal frame including signaling symbols having the encoded signaling data and data symbols having the time interleaved data; modulating data of the at least one signal frame by an Orthogonal Frequency Division Multiplex (OFDM) scheme; performing Peak to Average Power Ratio (PAPR) reduction for the modulated data using a tone reservation algorithm based on a Fast Fourier Transform (FFT) size. In addition, sets of reserved carriers for the PAPR reduction are used in the signaling symbols and the data symbols; and transmitting broadcast signals including the PAPR reduction performed data, further a set of reserved carriers for the signaling symbols is different from a set of reserved carriers for the data symbols.

公开(公告)号：US20180123761A1

公开(公告)日：2018-05-03

申请号：US15798142

申请日：2017-10-30

Applicant: LG ELECTRONICS INC.

Inventor： Byounggill KIM ,  Woochan KIM ,  Jaehyung KIM ,  Sungryong HONG ,  Chulkyu MUN ,  Jinyong CHOI ,  Jaeho HWANG ,  Jongseob BAEK ,  Kookyeon KWAK ,  Woosuk KO

IPC: H04L5/00 ,  H04L27/26 ,  H04L29/06

CPC classification number: H04L5/0053 ,  H04B7/0413 ,  H04H20/59 ,  H04H20/72 ,  H04J13/0062 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0071 ,  H04L5/0007 ,  H04L5/0016 ,  H04L5/0026 ,  H04L27/2611 ,  H04L27/2613 ,  H04L27/2627 ,  H04L27/2647 ,  H04L65/4076 ,  H04L65/80

Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The method for transmitting broadcast signals comprises encoding DP (data pipe) data carrying at least one service, mapping the encoded DP data onto constellations, time interleaving the mapped DP data, building at least one signal frame including the time interleaved DP data, modulating data in the built at least one signal frame by an OFDM scheme and transmitting the broadcast signals having the modulated data, wherein the at least one signal frame includes emergency alert information.

公开(公告)号：US20170272294A1

公开(公告)日：2017-09-21

申请号：US15586771

申请日：2017-05-04

Applicant: LG ELECTRONICS INC.

Inventor： Jaehyung KIM ,  Chulkyu MUN ,  Woosuk KO ,  Jongseob BAEK ,  Sungryong HONG

IPC: H04L27/26 ,  H04W72/00 ,  H04L1/00 ,  H04L5/00

CPC classification number: H04L27/265 ,  H04L1/0041 ,  H04L1/0042 ,  H04L1/0045 ,  H04L1/0071 ,  H04L5/0023 ,  H04L5/005 ,  H04L27/2602 ,  H04L27/2607 ,  H04L27/2611 ,  H04L27/2613 ,  H04L27/2647 ,  H04L27/2655 ,  H04L27/2665 ,  H04W72/005

Abstract: A broadcast signal receiver includes a demodulator configured to perform Orthogonal Frequency Division Multiplexing (OFDM) demodulation on a received broadcast signal; a frame parser configured to derive service data by parsing a signal frame of the received broadcast signal based on a number of carriers of the signal frame; a decoder configured to perform error correction on the service data; and an output processor configured to receive the service data and output a data stream, wherein the number of carriers of the signal frame is determined by equation: NoC=NoC_max−k*Δ, the NoC being the number of carriers, the NoC_max being maximum number of carriers, the k being a reducing coefficient and the Δ being a control unit value, wherein the k ranges from 0 to 4 and the Δ is 96 for 8K Fast Fourier Transform (FFT), 192 for 16K FFT, 384 for 32K FFT.