公开(公告)号：US20180048854A1

公开(公告)日：2018-02-15

申请号：US15554339

申请日：2016-03-02

Applicant: LG ELECTRONICS INC.

Inventor： Minsung KWAK ,  Woosuk KWON ,  Jangwon LEE ,  Kyoungsoo MOON ,  Sungryong HONG ,  Woosuk KO

IPC: H04N7/088 ,  H04L1/00 ,  H03M13/11 ,  H03M13/27 ,  H04N21/235 ,  H04N21/236

CPC classification number: H04N7/088 ,  H03M13/1102 ,  H03M13/1165 ,  H03M13/152 ,  H03M13/253 ,  H03M13/255 ,  H03M13/27 ,  H03M13/2703 ,  H03M13/2906 ,  H03M13/618 ,  H03M13/6362 ,  H04L1/0041 ,  H04L1/0048 ,  H04L1/0057 ,  H04L1/0058 ,  H04L1/0071 ,  H04L1/0075 ,  H04L1/04 ,  H04L65/4076 ,  H04L65/607 ,  H04L65/608 ,  H04L65/80 ,  H04L67/02 ,  H04L67/146 ,  H04N7/0887 ,  H04N21/235 ,  H04N21/2353 ,  H04N21/236 ,  H04N21/23614 ,  H04N21/2362 ,  H04N21/2665 ,  H04N21/4345 ,  H04N21/4348 ,  H04N21/8586 ,  H04W4/06

Abstract: A method for transmitting and processing a broadcast signal according to an embodiment of the present invention may comprise the steps of: generating broadcast data for one or more broadcast services; generating first level signaling information comprising information describing attributes for the one or more broadcast services; generating second level signaling information comprising information for listing the one or more broadcast services; generating link layer packets comprising encoded broadcast data, the first level signaling information and the second level signaling information; and generating a broadcast signal comprising the generated link layer packets.

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：US20180035138A1

公开(公告)日：2018-02-01

申请号：US15730461

申请日：2017-10-11

Applicant: LG ELECTRONICS INC.

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

IPC: H04N21/236 ,  H04N21/6379 ,  H04N21/438 ,  H04N21/434 ,  H04N21/2383 ,  H04L1/00 ,  H04L5/00 ,  H04N21/85 ,  H03M13/27 ,  H04N21/234 ,  H04N7/08

CPC classification number: H04N21/236 ,  H03M13/09 ,  H03M13/1102 ,  H03M13/152 ,  H03M13/255 ,  H03M13/27 ,  H03M13/2742 ,  H03M13/2906 ,  H04L1/0071 ,  H04L5/0007 ,  H04N7/08 ,  H04N21/234 ,  H04N21/2383 ,  H04N21/434 ,  H04N21/4382 ,  H04N21/6379 ,  H04N21/85

Abstract: A method is provided for transmitting broadcast signals. Service data is encoded. The encoded service data is mapped to symbols onto constellations. Data cells are frequency interleaved in a symbol among the symbols in at least one frame unit using an interleaving sequence. The interleaving sequence is generated based on a main interleaving-sequence and a symbol offset value. The interleaving sequence is generated by operating the main interleaving-sequence with the symbol offset value. The data cells are included in the symbol with a symbol index and a frame unit with a frame unit index. The frequency interleaving of the data cells operates on a frame basis. The frequency interleaving of the data cells is reset when a first frame unit is changed to a second frame unit. Data is modulated in the at least one frame unit by an Orthogonal Frequency Division Multiplexing (OFDM) scheme. The broadcast signals carrying the modulated data are transmitted.

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：US20180026819A1

公开(公告)日：2018-01-25

申请号：US15722768

申请日：2017-10-02

Applicant: LG ELECTRONICS INC.

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

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

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 transmitter is provided that includes an input formatter, a Forward Error Correction (FEC) encoder, a constellation mapper, a time interleaver, a framer and a waveform generator. The input formatter input processes input data to output Physical Layer Pipe (PLP) data. The FEC encoder performs FEC encoding on the PLP data. The constellation mapper performs constellation mapping on the PLP data. The time interleaver is configured to time interleave the PLP data. The framer is configured to generate a signal frame comprising the PLP data. The waveform generator is configured to generate a transmission broadcast signal comprising the signal frame. A number of carriers of the signal frame is determined by the equation: NoC=NoC_max−k*Δ, wherein NoC is the number of carriers, NoC_max is a maximum number of carriers, k is a reducing coefficient, and Δ is a control unit value.

公开(公告)号：US20180026818A1

公开(公告)日：2018-01-25

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: H04L27/26 ,  H04L5/00 ,  H04N19/30 ,  H04L1/00 ,  H03M13/27 ,  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：US20180020244A1

公开(公告)日：2018-01-18

申请号：US15540551

申请日：2016-01-19

Applicant: LG Electronics Inc.

Inventor： Sejin OH ,  Woosuk KO ,  Sungryong HONG

IPC: H04N21/2362 ,  H04L29/12 ,  H04L29/06 ,  H04L29/08 ,  H04L12/18

CPC classification number: H04N21/2362 ,  H04L12/18 ,  H04L12/1836 ,  H04L61/2007 ,  H04L69/16 ,  H04L69/323 ,  H04L69/324 ,  H04L69/326 ,  H04N7/08 ,  H04N21/236 ,  H04N21/8352 ,  H04N21/858

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 may support a next generation broadcast service, in an environment supporting next generation hybrid broadcast that uses a terrestrial broadcast network and an internet network. Further, the present invention proposes an efficient signaling method which can cover both the terrestrial broadcast network and the internet network, in an environment supporting next generation hybrid broadcast.

公开(公告)号：US20180019903A1

公开(公告)日：2018-01-18

申请号：US15128838

申请日：2015-02-25

Applicant: LG ELECTRONICS INC.

Inventor： Jaeho HWANG ,  Woosuk KO ,  Sungryong HONG

IPC: H04L27/26 ,  H04L29/06 ,  H04L29/08

CPC classification number: H04L27/2627 ,  H04L1/00 ,  H04L1/0041 ,  H04L1/0057 ,  H04L1/0071 ,  H04L1/0075 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0091 ,  H04L27/2601 ,  H04L27/2615 ,  H04L27/2649 ,  H04L65/4076 ,  H04L69/04 ,  H04L69/22 ,  H04L69/323 ,  H04L69/324

Abstract: An apparatus for transmitting a broadcast signal is introduced. The apparatus for transmitting a broadcast signal according to the present invention includes: an input formatting module configured to de-multiplex an input stream into at least one Data Pipe (DP); a BICM module configured to perform error correction processing on data of the at least one DP; a frame building module configured to generate a signal frame including the data of the DP; an OFDM generation module configured to generate a transmission broadcast signal by inserting a preamble into the signal frame and performing OFDM modulation; and a signaling generation module configured to generate Physical Layer Signaling (PLS) information.

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.