公开(公告)号：US20140341103A1

公开(公告)日：2014-11-20

申请号：US14278431

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 ,  Jonbseob Baek ,  Kookyeon Kwak ,  Woosuk Ko

IPC: H04W72/00 ,  H04L5/00

CPC classification number: H04W72/005 ,  H04H20/72 ,  H04L1/0033 ,  H04L1/0036 ,  H04L1/0057 ,  H04L1/0065 ,  H04L1/0068 ,  H04L1/0071 ,  H04L1/06 ,  H04L5/0007 ,  H04L27/2601 ,  H04L69/04 ,  H04W28/06

Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for transmitting broadcast signals comprises an input formatter to format at least one input stream to output DP (Data Pipe) data corresponding to each of a plurality of DPs, wherein the each of a plurality of DPs carries at least one service or at least one service component, an encoder to encode the DP data, a mapper to map the encoded DP data onto constellations, a time interleaver to time interleave the mapped DP data, a frame builder to build at least one signal frame including the time interleaved DP data, a modulator to modulate data in the built at least one signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme and a transmitter to transmit the broadcast signals having the modulated data.

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输入格式化器，用于格式化至少一个输入流以输出对应于多个DP中的每一个的DP（数据管道）数据，其中多个DP中的每一个携带至少一个服务或至少 一个服务组件，用于对DP数据进行编码的编码器，映射器将编码的DP数据映射到星座上，时间交织器对时间交织映射的DP数据;帧构建器，用于构建至少一个信号帧，包括时间交织的DP数据 调制器，用于通过OFDM（正交频分复用）方案来调制所构建的至少一个信号帧中的数据，以及发送器，用于发送具有调制数据的广播信号。

公开(公告)号：US20230403635A1

公开(公告)日：2023-12-14

申请号：US18031107

申请日：2021-10-14

Applicant: LG ELECTRONICS INC.

Inventor： Hyunmin KIM ,  Dongsun Lee ,  Byounggill Kim ,  Jomgku Lee ,  Sunam Kim ,  Taehowan Hong

IPC: H04W48/10 ,  H04W72/25 ,  H04W72/0446 ,  H04W8/00

CPC classification number: H04W48/10 ,  H04W72/25 ,  H04W72/0446 ,  H04W8/005

Abstract: Provided are a method by which a transmission terminal performs groupcast transmission in a wireless communication system, and a device. The method transmits a synchronization signal block (SSB) through an SSB beam, receives, from each of a plurality of terminals, a discovery message as a response to the SSB, determines a groupcast transmission timing for specific terminals from among the plurality of terminals on the basis of the discovery message, transmits, to the specific terminals, a group transmission/reception timing message indicating the groupcast transmission timing, and performs groupcast transmission for the specific terminals by using the SSB beam at the groupcast transmission timing.

公开(公告)号：US11032797B2

公开(公告)日：2021-06-08

申请号：US16447327

申请日：2019-06-20

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 ,  H04W28/06 ,  H04H20/72 ,  H04L1/06 ,  H04L1/00 ,  H04L5/00 ,  H04L27/26 ,  H04L29/06

Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for transmitting broadcast signals comprises an input formatter to format at least one input stream to output DP (Data Pipe) data corresponding to each of a plurality of DPs, wherein the each of a plurality of DPs carries at least one service or at least one service component, an encoder to encode the DP data, a mapper to map the encoded DP data onto constellations, a time interleaver to time interleave the mapped DP data, a frame builder to build at least one signal frame including the time interleaved DP data, a modulator to modulate data in the built at least one signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme and a transmitter to transmit the broadcast signals having the modulated data.

公开(公告)号：US10999112B2

公开(公告)日：2021-05-04

申请号：US16677242

申请日：2019-11-07

Applicant: LG ELECTRONICS INC.

Inventor： Byounggill Kim ,  Jaehyung Kim ,  Jaeho Hwang ,  Woosuk Ko ,  Sungryong Hong

IPC: H04W4/00 ,  H04L27/26 ,  H04L5/00 ,  H04L1/00 ,  H04W4/06

Abstract: The present invention provides a method of transmitting broadcast signals. The method includes encoding service data of Physical Layer Pipes (PLPs); bit interleaving the encoded service data; building at least one signal frame including the bit interleaved service data; and modulating data in the at least one signal frame by Orthogonal Frequency Division Multiplexing (OFDM) method; inserting a preamble at a beginning of each of the at least one signal frame after the modulating step; and transmitting the broadcast signals having the modulated data, wherein the preamble includes two OFDM symbols and each of the two OFDM symbols is generated by a sequence multiplication, and wherein each of the two OFDM symbols in the preamble includes information for an emergency alert.

公开(公告)号：US20200036491A1

公开(公告)日：2020-01-30

申请号：US16556631

申请日：2019-08-30

Applicant: LG Electronics Inc.

Inventor： Byounggill Kim ,  Jaehyung Kim ,  Woosuk Ko ,  Sungryong Hong

IPC: H04L5/00 ,  H04L27/26 ,  H04L1/00 ,  H04L1/08

Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for transmitting broadcast signals, the apparatus comprises an encoder for encoding service data corresponding to each of a plurality of data transmission path, wherein each of the data transmission path carries at least one service component, a frame builder for building at least one signal frame included in a super frame, wherein each of signal frames includes the encoded service data and the encoded signaling data, a modulator for modulating the at least one signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme, wherein each of the modulated signal frame includes a preamble having basic transmission parameters, wherein a length of the preamble is extendable and a transmitter for transmitting the broadcast signals carrying the at least one modulated signal frame.

公开(公告)号：US10349382B2

公开(公告)日：2019-07-09

申请号：US15434858

申请日：2017-02-16

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 ,  H04W28/06 ,  H04L1/00 ,  H04L5/00 ,  H04L27/26 ,  H04L29/06 ,  H04H20/72 ,  H04L1/06

Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for transmitting broadcast signals comprises an input formatter to format at least one input stream to output DP (Data Pipe) data corresponding to each of a plurality of DPs, wherein the each of a plurality of DPs carries at least one service or at least one service component, an encoder to encode the DP data, a mapper to map the encoded DP data onto constellations, a time interleaver to time interleave the mapped DP data, a frame builder to build at least one signal frame including the time interleaved DP data, a modulator to modulate data in the built at least one signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme and a transmitter to transmit the broadcast signals having the modulated data.

公开(公告)号：US10298270B2

公开(公告)日：2019-05-21

申请号：US15402838

申请日：2017-01-10

Applicant: LG Electronics Inc.

Inventor： Jongseob Baek ,  Byounggill Kim ,  Woochan Kim ,  Jaehyung Kim ,  Sungryong Hong ,  Chulkyu Mun ,  Jinyong Choi ,  Jaeho Hwang ,  Kookyeon Kwak ,  Woosuk Ko

IPC: H03M13/27 ,  H04L1/00 ,  H04L27/26 ,  H04L5/00 ,  H03M13/11

Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The method for transmitting broadcast signals includes encoding DP data according to a code rate, wherein the encoding further includes LDPC encoding the DP data according to the code rate, bit interleaving the LDPC encoded DP data, mapping the bit interleaved DP data onto constellations, MIMO (Multi Input Multi Output) encoding the mapped DP data, and time interleaving the MIMO encoded DP data; building at least one signal frame by arranging the encoded DP data; and modulating data in the built signal frame by OFDM method and transmitting the broadcast signals having the modulated data, wherein the step of modulating includes inserting CPs in the built signal frame based on a CP set which includes information about locations of CPs, wherein the CP set is defined based on FFT size.

公开(公告)号：US10250400B2

公开(公告)日：2019-04-02

申请号：US15687163

申请日：2017-08-25

Applicant: LG Electronics Inc.

Inventor： Byounggill Kim ,  Woochan Kim ,  Jaehyung Kim ,  Woosuk Ko ,  Sungryong Hong ,  Chulkyu Mun ,  Jinyong Choi ,  Jaeho Hwang ,  Jongseob Baek ,  Kookyeon Kwak ,  Byeongkook Jeong

IPC: H04L1/00 ,  H04J13/00 ,  H04L12/18 ,  H04N21/236 ,  H04N21/434 ,  H04N21/2383 ,  H04N21/438 ,  H04L12/931 ,  H04L27/26

Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The method for transmitting broadcast signals including encoding DP (Data Pipe) data carrying at least one service, mapping the encoded DP data onto constellations, time interleaving the mapped DP data, building a signal frame including the time interleaved DP data, modulating data in the built signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme, and transmitting the broadcast signals having the modulated data, wherein the broadcast signals are carried in consecutive super frames, wherein each of the super frames includes multiplexed signal frames for different service in a time domain, wherein the signal frame includes a preamble located at the beginning of the at least one signal frame, wherein the preamble includes signaling information for identifying the signal frame.

公开(公告)号：US10158515B2

公开(公告)日：2018-12-18

申请号：US15477371

申请日：2017-04-03

Applicant: LG ELECTRONICS INC.

Inventor： Chulkyu Mun ,  Byounggill Kim ,  Jaehyung Kim ,  Woosuk Ko ,  Sungryong Hong

IPC: H04L27/26 ,  H04L1/00 ,  G06F11/10 ,  H04L5/00 ,  H04L12/18

Abstract: Disclosed is an apparatus for transmitting a broadcast signal, including: an input formatting module configured to demultiplex an input stream into at least one Data Pipe (DP); a BICM (Bit Interleaved Coding and Modulation) module configured to perform error correction processing on data of the DP; a frame building module configured to map the data of the DP to symbols within a frame; an OFDM generation module configured to generate a transmission signal by inserting a preamble into the frame and performing OFDM modulation; and a transmission parameter control module configured to set at least one transmission parameter and control transmission signal processing of the frame building module and the OFDM generation module.

公开(公告)号：US09941985B2

公开(公告)日：2018-04-10

申请号：US15289658

申请日：2016-10-10

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 ,  H04B7/0413 ,  H04L1/00 ,  H04L1/06 ,  H04B7/0456 ,  H04L27/20 ,  H04L27/34 ,  H04B7/10 ,  H04L5/00

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.