公开(公告)号：US10135659B2

公开(公告)日：2018-11-20

申请号：US15877068

申请日：2018-01-22

Applicant: LG ELECTRONICS INC.

Inventor： Jinyong Choi ,  Woosuk Ko ,  Sangchul Moon ,  Sungryong Hong

IPC: H04B7/0413 ,  H04L27/26 ,  H04W4/06 ,  H04L27/36 ,  H04L27/22 ,  H04L27/34 ,  H04L27/38 ,  H04B7/10

Abstract: A method and apparatus are provided for receiving/transmitting broadcast signals. One method includes receiving broadcast signals; demodulating the received broadcast signals by an OFDM (Orthogonal Frequency Division Multiplex) scheme, wherein signal frames in the received broadcast signals include physical signaling data and service data; MIMO (Multi Input Multi Output) processing the demodulated broadcast signals based on at least one of a phase-hopping matrix with a phase rotation angle and a rotation matrix with a rotation angle, wherein a value of the rotation angle depends on a modulation order and a code rate of the service data; demapping data in the MIMO processed broadcast signals; and decoding the demapped data based on the code rate, wherein when the modulation order is Non-Uniform Constellation (NUC) 16 Quadrature amplitude modulation (QAM) and the code rate is one of 2/15, 3/15, 4/15, or 5/15, then the value of the rotation angle is zero degrees.

公开(公告)号：US10116481B2

公开(公告)日：2018-10-30

申请号：US15061168

申请日：2016-03-04

Applicant: LG ELECTRONICS INC.

Inventor： Jaehyung Kim ,  Woosuk Ko ,  Sungryong Hong

IPC: H04L27/26 ,  H04L1/00 ,  H04L5/00 ,  H04L12/18 ,  H04H20/42 ,  H04H60/11

Abstract: Disclosed herein is a broadcast signal transmitter. The broadcast signal transmitter according to an embodiment of the present invention includes an input formatting module configured to perform baseband formatting and to output at least one Physical Layer Pipe (PLP) data, a BICM module configured to perform error-correction processing on the PLP data, a framing and interleaving module configured to interleave the PLP data and to generate a signal frame, and a waveform generation module configured to insert a preamble into the signal frame and to generate a broadcast signal by OFDM-modulate the signal frame.

公开(公告)号：US10103829B2

公开(公告)日：2018-10-16

申请号：US15398281

申请日：2017-01-04

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: H04H20/44 ,  H04L1/00 ,  H04L5/00 ,  H04B7/0413

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.

公开(公告)号：US10097392B2

公开(公告)日：2018-10-09

申请号：US15654329

申请日：2017-07-19

Applicant: LG Electronics Inc.

Inventor： Jongseob Baek ,  Jongwoong Shin ,  Jaehyung Kim ,  Woosuk Ko ,  Sungryong Hong

IPC: H04L27/26 ,  H04L1/00 ,  H04L5/00 ,  H03M13/27 ,  H03M13/09 ,  H03M13/11 ,  H03M13/15 ,  H03M13/25 ,  H03M13/29

Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for transmitting broadcast signals comprises an encoder for encoding service data, a mapper for mapping the encoded service data into a plurality of OFDM (Orthogonal Frequency Division Multiplex) symbols to build at least one signal frame, a frequency interleaver for frequency interleaving data in the at least one signal frame by using a different interleaving-seed which is used for every OFDM symbol pair comprised of two sequential OFDM symbols, a modulator for modulating the frequency interleaved data by an OFDM scheme and a transmitter for transmitting the broadcast signals having the modulated data, wherein the different interleaving-seed is generated based on a cyclic shifting value and wherein an interleaving seed is variable based on an FFT size of the modulating.

公开(公告)号：US10070162B2

公开(公告)日：2018-09-04

申请号：US15556612

申请日：2016-03-23

Applicant: LG Electronics Inc.

Inventor： Jangwon Lee ,  Jongyeul Suh ,  Soojin Hwang ,  Minsung Kwak ,  Woosuk Ko ,  Kyoungsoo Moon ,  Sungryong Hong

IPC: H04N7/173 ,  H04N21/2362 ,  H04L29/06 ,  H04N21/845 ,  H04N19/70 ,  H04N21/2343 ,  H04N21/81 ,  H04N19/37

Abstract: The present invention proposes a method for transmitting a broadcast signal. The method for transmitting a broadcast signal according to the present invention proposes a system which can support a next generation broadcast service in an environment supporting a next generation hybrid broadcast using a terrestrial broadcast network and an Internet network. Further, the present invention proposes an efficient signaling scheme which can cover both the terrestrial broadcast network and the Internet network in an environment supporting the next generation hybrid broadcast.

公开(公告)号：US10063289B2

公开(公告)日：2018-08-28

申请号：US15603035

申请日：2017-05-23

Applicant: LG ELECTRONICS INC.

Inventor： Jongseob Baek ,  Woosuk Ko ,  Sungryong Hong

IPC: H04B7/0413 ,  H04H60/73 ,  H04L1/00 ,  H04L27/26 ,  H04H60/11

CPC classification number: H04L27/2649 ,  H04B7/0413 ,  H04H60/11 ,  H04H60/73 ,  H04L1/0042 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0071 ,  H04L1/0075 ,  H04L27/2626 ,  H04L2001/0093

Abstract: A method for transmitting broadcast signals encodes service data corresponding to each of a plurality of physical paths and time interleaves the encoded service data by using each Time Interleaving (TI) block in an interleaving frame. In the time interleaving, each TI block includes a number of actual Forward Error Correction (FEC) blocks having the encoded service data, and further includes a number of virtual FEC blocks equal to a difference between the number of actual FEC blocks of each TI block and a maximum number of actual FEC blocks. The time interleaving is performed by acquiring a cell position by using a row index, a column index and a twisting parameter, and when the acquired cell position is corresponding to a virtual cell in the number of virtual FEC blocks, the acquired cell position is skipped during a reading operation of the time interleaving.

公开(公告)号：US10057098B2

公开(公告)日：2018-08-21

申请号：US15723979

申请日：2017-10-03

Applicant: LG ELECTRONICS INC.

Inventor： Jongseob Baek ,  Woosuk Ko ,  Sungryong Hong ,  Jaehyung Kim ,  Byeongkook Jeong

IPC: H04L27/00 ,  H04L27/26 ,  H04L1/00 ,  H04N19/30 ,  H03M13/27 ,  H04L5/00 ,  H04L1/06

CPC classification number: H04L27/2602 ,  H03M13/1102 ,  H03M13/152 ,  H03M13/255 ,  H03M13/2707 ,  H03M13/2721 ,  H03M13/2906 ,  H03M13/618 ,  H03M13/6362 ,  H04L1/0041 ,  H04L1/0042 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0058 ,  H04L1/0071 ,  H04L1/06 ,  H04L5/0007 ,  H04L5/0023 ,  H04L27/26 ,  H04L2001/0093 ,  H04N19/30

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 at DP level, a frame builder for building at least one signal frame including the time interleaved DP data, a modulator for modulating data in the built at least one signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme and a transmitter for transmitting the broadcast signals having the modulated data.

公开(公告)号：US10033442B2

公开(公告)日：2018-07-24

申请号：US15051131

申请日：2016-02-23

Applicant: LG Electronics Inc.

Inventor： Jongseob Baek ,  Woosuk Ko ,  Sungryong Hong

IPC: H04B7/04 ,  H04B7/0413 ,  H04L1/00 ,  H04L29/06 ,  H04L27/26

Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for receiving broadcast signals, the apparatus comprises a receiver to receive the broadcast signals, a demodulator to perform demodulation on the received broadcast signals by an OFDM (Orthogonal Frequency Division Multiplex) scheme, wherein the broadcast signals include at least one signal frame, wherein a signal frame includes a preamble and at least one sub-frame, a frequency de-interleaver to frequency de-interleave the demodulated broadcast signals by using a different interleaving sequence, wherein the different interleaving sequence is used for data at least one of the preamble and a sub-frame, wherein the different interleaving sequence is generated based on an interleaving sequence and a symbol offset, a frame parser to parse the at least one signal frame from the frequency de-interleaved broadcast signals and a decoder to decode service data in the parsed at least one signal frame.

公开(公告)号：US20180199076A1

公开(公告)日：2018-07-12

申请号：US15842278

申请日：2017-12-14

Applicant: LG ELECTRONICS INC.

Inventor： Sangchul Moon ,  Woosuk Ko ,  Sungryong Hong ,  Jinwoo Kim ,  Jongwoong Shin

IPC: H04N21/2362 ,  H04N21/61 ,  H04L1/00 ,  H04N21/438 ,  H04N21/434 ,  H04N21/414 ,  H04N21/2383 ,  H04N21/2381 ,  H04N21/236 ,  H04L27/26

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：US10020904B2

公开(公告)日：2018-07-10

申请号：US15406395

申请日：2017-01-13

Applicant: LG Electronics Inc.

Inventor： Jongseob Baek ,  Jaehyung Kim ,  Woosuk Ko ,  Sungryong Hong

IPC: H04L27/28 ,  H04H20/72 ,  H04L1/00 ,  H04L27/26

CPC classification number: H04H20/72 ,  H04B7/0413 ,  H04L1/0071 ,  H04L27/2601 ,  H04L27/2626 ,  H04L27/2627 ,  H04L27/2637 ,  H04L27/2647 ,  H04L27/2649 ,  H04L27/265

Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for transmitting broadcast signals comprises an encoder encoding service data, a time interleaver interleaving the encoded service data, a mapper mapping the interleaved service data into a plurality of OFDM (Orthogonal Frequency Division Multiplex) symbols to build at least one signal frame, a frequency interleaver interleaving data in the at least one signal frame by using a different interleaving-seed which is used for every OFDM symbol pair comprised of two sequential OFDM symbols, wherein the frequency interleaver calculates an interleaving address for the different interleaving-seed based on a main-PRBS sequence and a cyclic shifting value, a modulator modulating the frequency interleaved data by an OFDM scheme and a transmitter transmitting the broadcast signals having the modulated data, wherein an interleaving-seed is generated based on a cyclic shift value and an FFT size of the modulating.