公开(公告)号：US20230403417A1

公开(公告)日：2023-12-14

申请号：US18207472

申请日：2023-06-08

Applicant: LG ELECTRONICS INC.

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

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

CPC classification number: H04N21/2362 ,  H04L1/0057 ,  H04L27/2601 ,  H04N21/23614 ,  H04N21/2381 ,  H04N21/2383 ,  H04N21/41407 ,  H04N21/4345 ,  H04N21/4381 ,  H04N21/4382 ,  H04N21/6131 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0061 ,  H03M13/1148 ,  H03M13/2792 ,  H03M13/616 ,  H04B7/0456 ,  H04L1/0058 ,  H04L1/0071 ,  H04L5/0007 ,  H04L27/2627 ,  H04L27/2649

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 least 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：US20190238383A1

公开(公告)日：2019-08-01

申请号：US16376891

申请日：2019-04-05

Applicant: LG ELECTRONICS INC.

Inventor： Jinyong CHOI ,  Woosuk KO ,  Sangchul MOON ,  Sungryong HONG

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

CPC classification number: H04L27/2649 ,  H04B7/0413 ,  H04B7/10 ,  H04L27/0008 ,  H04L27/18 ,  H04L27/22 ,  H04L27/2627 ,  H04L27/3444 ,  H04L27/362 ,  H04L27/38 ,  H04W4/06

Abstract: A method for receiving broadcast signals in a receiver, includes receiving the broadcast signals carrying service data, demodulating the broadcast signals by an Orthogonal Frequency Division Multiplexing (OFDM) scheme, Multiple-Input Multiple-Output (MIMO) processing the broadcast signals based on rotation matrices with rotation angles, wherein values of the rotation angles depend on modulation orders and code rates of the service data, demapping data in the broadcast signals and decoding the data based on the code rates.

公开(公告)号：US20190075005A1

公开(公告)日：2019-03-07

申请号：US16175365

申请日：2018-10-30

Applicant: LG ELECTRONICS INC.

Inventor： Jinyong CHOI ,  Woosuk KO ,  Sangchul MOON ,  Sungryong HONG

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

Abstract: A method for receiving broadcast signals in a receiver, includes receiving the broadcast signals carrying service data, demodulating the broadcast signals by an Orthogonal Frequency Division Multiplexing (OFDM) scheme, Multiple-Input Multiple-Output (MIMO) processing the broadcast signals based on rotation matrices with rotation angles, wherein values of the rotation angles depend on modulation orders and code rates of the service data, demapping data in the broadcast signals and decoding the data based on the code rates, wherein when a modulation order is Quadrature Phase Shift Keying (QPSK) and the code rates are 2/15, 3/15, 4/15, and 5/15, the values of the rotation angles are zero (0) degrees, and when a modulation order is QPSK and the code rates are 6/15, 7/15, 8/15, 9/15, 10/15, 11/15, 12/15 and 13/15, the values of the rotation angles are non-zero (0) degrees.

公开(公告)号：US20180048368A1

公开(公告)日：2018-02-15

申请号：US15703587

申请日：2017-09-13

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/04 ,  H04N21/438 ,  H04L1/00 ,  H04N21/434 ,  H04N21/414 ,  H04L5/00 ,  H04N21/2381 ,  H04N21/2362 ,  H04N21/236 ,  H04N7/08 ,  H04L27/26 ,  H04N21/61 ,  H04N21/2383

CPC classification number: H04B7/0478 ,  H04B7/0413 ,  H04L1/0041 ,  H04L1/0047 ,  H04L1/0057 ,  H04L1/0063 ,  H04L5/0023 ,  H04L5/0053 ,  H04L5/0091 ,  H04L27/2601 ,  H04L27/2637 ,  H04L27/2646 ,  H04N7/08 ,  H04N21/23614 ,  H04N21/2362 ,  H04N21/2381 ,  H04N21/2383 ,  H04N21/41407 ,  H04N21/4345 ,  H04N21/4381 ,  H04N21/4382 ,  H04N21/6131

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.

公开(公告)号：US20180041369A1

公开(公告)日：2018-02-08

申请号：US15684194

申请日：2017-08-23

Applicant: LG ELECTRONICS INC.

Inventor： Sangchul MOON ,  Seoyoung BACK ,  Woosuk KO

IPC: H04L27/26 ,  H04B7/06 ,  H04L5/00 ,  H04W52/42 ,  H04L25/03 ,  H04W52/32 ,  H04L1/00

Abstract: A broadcast signal transmitter according to one embodiment of the present invention comprises: an input signal generating unit which generates a first input signal and a second input signal; a MIMO encoder which performs MIMO processing of the first input signal and the second input signal to output a first transmission signal and a second transmission signal; and a first OFDM generator and a second OFDM generator which performs OFDM modulation of the first transmission signal and OFDM modulation of the second transmission signal. The MIMO processing applies a MIMO matrix to the first input signal and the second input signal. The MIMO matrix changes phases using a phase rotation matrix, and adjusts power of the first input signal and second input signal using parameter a, wherein the parameter is set to different values in accordance with the modulation types of the first input signal and second input signal.

公开(公告)号：US20180034674A1

公开(公告)日：2018-02-01

申请号：US15717331

申请日：2017-09-27

Applicant: LG ELECTRONICS INC.

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

IPC: H04L27/26 ,  H04L5/00

CPC classification number: H04L27/2602 ,  H03M13/2792 ,  H03M13/616 ,  H04B7/0413 ,  H04L1/0041 ,  H04L1/0042 ,  H04L1/0057 ,  H04L1/0071 ,  H04L5/0007 ,  H04L5/0023 ,  H04L12/18 ,  H04L27/2626 ,  H04L27/2627 ,  H04L27/2647 ,  H04L27/2649 ,  H04L2001/0093

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

公开(公告)号：US20180014048A1

公开(公告)日：2018-01-11

申请号：US15696479

申请日：2017-09-06

Applicant: LG ELECTRONICS INC.

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

IPC: H04N21/236 ,  H04N21/61 ,  H04N21/438 ,  H04N21/414 ,  H04L1/00 ,  H04N21/2383 ,  H04N21/2381 ,  H04N21/2362 ,  H04N21/81 ,  H04N21/434

CPC classification number: H04N21/23614 ,  H04L1/0041 ,  H04L1/0048 ,  H04L1/0057 ,  H04L1/0071 ,  H04N21/2362 ,  H04N21/2381 ,  H04N21/2383 ,  H04N21/41407 ,  H04N21/4345 ,  H04N21/4348 ,  H04N21/4381 ,  H04N21/4382 ,  H04N21/6131 ,  H04N21/814

Abstract: A method for transmitting broadcast signals by an apparatus for transmitting broadcast signals, the method includes encoding service data according to a 16200 bit codeword and a 11/15 code rate based on addresses in a parity check matrix, wherein the encoded service data comprises information bits and parity bits; building at least one signal frame by mapping the encoded service data; modulating data in the built signal frame by an Orthogonal Frequency Division Multiplexing (OFDM) scheme; and transmitting broadcast signals having the modulated data, wherein the encoding of the service data comprises: initializing the parity bits, adding the information bits to the parity bits of which addresses are based on values of entries in each row of the parity check matrix, wherein a row of the parity check matrix corresponds to a 360 bit group of the information bits.

公开(公告)号：US20170230142A1

公开(公告)日：2017-08-10

申请号：US15467226

申请日：2017-03-23

Applicant: LG ELECTRONICS INC.

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

IPC: H04L1/00 ,  H03M13/11 ,  H03M13/15 ,  H04N21/438 ,  H03M13/27 ,  H04N21/236 ,  H04N21/2362 ,  H04N21/434 ,  H04L27/26 ,  H03M13/25

CPC classification number: H04L1/0057 ,  H03M13/036 ,  H03M13/1165 ,  H03M13/152 ,  H03M13/255 ,  H03M13/271 ,  H03M13/2778 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0061 ,  H04L1/0071 ,  H04L27/2605 ,  H04L27/2627 ,  H04L27/2649 ,  H04L2001/0093 ,  H04N21/23614 ,  H04N21/2362 ,  H04N21/2381 ,  H04N21/2383 ,  H04N21/41407 ,  H04N21/4345 ,  H04N21/4381 ,  H04N21/4382 ,  H04N21/6131

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 least 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：US20170155535A1

公开(公告)日：2017-06-01

申请号：US15431143

申请日：2017-02-13

Applicant: LG Electronics Inc.

Inventor： Hotaek HONG ,  Sangchul MOON ,  Joonhui LEE ,  Woosuk KO

IPC: H04L27/26 ,  H04L29/06 ,  H04W72/00 ,  H04B7/0413 ,  H04L5/00

CPC classification number: H04L27/2649 ,  H04B7/0413 ,  H04B7/10 ,  H04H60/73 ,  H04L1/0071 ,  H04L1/0083 ,  H04L5/0023 ,  H04L5/0044 ,  H04L27/2601 ,  H04L27/2608 ,  H04L27/2627 ,  H04L69/22 ,  H04N21/42607 ,  H04W4/18 ,  H04W24/02 ,  H04W72/005

Abstract: A broadcast signal receiver according to the present invention comprises: a demodulator for performing OFDM demodulation on a received broadcast signal including a frame for the delivery of a broadcast service: a frame demapper for outputting the frame, the frame including a preamble that contains first signaling information, and a plurality of link-layer-pipes (LLPs) that contain PLP data, second signaling information and third signaling information, with the PLP data including a base layer and an enhancement layer of the broadcast service; and a decoder for decoding the first signaling information, for decoding the second and third signaling information, and for selectively decoding the PLP data by using the third signaling information.

公开(公告)号：US20170141942A1

公开(公告)日：2017-05-18

申请号：US15418353

申请日：2017-01-27

Applicant: LG ELECTRONICS INC.

Inventor： Yonghak Suh ,  Sangchul MOON ,  Jongwoong SHIN ,  Woosuk KO ,  Sungryoung HONG

IPC: H04L27/26 ,  H04L1/00

CPC classification number: H04L27/2627 ,  H03M13/036 ,  H03M13/09 ,  H03M13/1102 ,  H03M13/1165 ,  H03M13/152 ,  H03M13/255 ,  H03M13/271 ,  H03M13/2778 ,  H03M13/2906 ,  H04H20/33 ,  H04L1/0042 ,  H04L1/0057 ,  H04L1/0071 ,  H04L5/0044 ,  H04L27/2649 ,  H04L2001/0093

Abstract: The present invention provides an apparatus of transmitting broadcast signals. The apparatus includes, an encoder for encoding service data, a bit interleaver for bit interleaving the encoded service data, a mapper for mapping the bit interleaved service data into a plurality of OFDM (Orthogonal Frequency Division Multiplex) symbols to build at least one signal frame, an OFDM modulator for modulating data in the built at least one signal frame by an OFDM scheme and a transmitter for transmitting the broadcast signals having the modulated data.