公开(公告)号：US20140198874A1

公开(公告)日：2014-07-17

申请号：US14156966

申请日：2014-01-16

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: H04L27/26 ,  H04L1/00

CPC classification number: H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0071 ,  H04L1/0072 ,  H04L1/0625 ,  H04L1/0631 ,  H04L1/08 ,  H04L27/2607 ,  H04L27/2613 ,  H04L2001/0093

Abstract: The object of the present invention can be achieved by providing a method of transmitting broadcast signals including encoding Data Pipe, DP, data, wherein the encoding further includes Forward Error Correction, FEC, encoding the DP data, Bit interleaving the FEC 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 at least one built signal frame by an Orthogonal Frequency Division Multiplexing, OFDM, method and transmitting the broadcast signals having the modulated data, wherein each of the at least one signal frame includes at least one preamble having repeated at least one signaling information.

Abstract translation: 本发明的目的可以通过提供一种发送广播信号的方法来实现，包括编码数据管道DP，数据，其中编码还包括前向纠错，FEC，DP数据编码，比特交织FEC编码的DP数据，以及 将位交织的DP数据映射到星座上; 通过映射编码的DP数据构建至少一个信号帧; 以及通过正交频分复用OFDM方法在所述至少一个内置信号帧中调制数据，并发送具有调制数据的广播信号，其中所述至少一个信号帧中的每一个包括至少一个具有重复的至少一个前导码 信令信息。

公开(公告)号：US20220394508A1

公开(公告)日：2022-12-08

申请号：US17775878

申请日：2020-11-11

Applicant: LG ELECTRONICS INC.

Inventor： Jeongin KIM ,  Dongsun LEE ,  Sungryong HONG

IPC: H04W24/02 ,  H04B7/04 ,  H04W52/02

Abstract: An embodiment relates to a vehicular distributed antenna system operating in a wireless communication system, the vehicular distributed antenna system comprising: a plurality of distributed units including RF antennas; and a central unit for controlling the plurality of distributed units, wherein, in a case of receiving a configuration of a power sleep mode from the central unit, the plurality of distributed units store final configuration parameter information; and in a case of receiving a configuration of a power activation mode from the central unit, the plurality of distribution units use the stored final configuration parameter information when a storage parameter use mode is configured, and receive new configuration parameter information when the storage parameter use mode is not configured.

公开(公告)号：US20220103274A1

公开(公告)日：2022-03-31

申请号：US17545751

申请日：2021-12-08

Applicant: LG ELECTRONICS INC.

Inventor： Seungryul YANG ,  Minsung KWAK ,  Woosuk KO ,  Sungryong HONG ,  Kyoungsoo MOON

IPC: H04H60/76 ,  H04L29/06 ,  H04H60/09 ,  H04H60/35 ,  H04H60/72 ,  H04L29/08

Abstract: A method for processing a broadcast service at a Primary Device (PD), the method including performing, by a companion manager of the PD, a discovery process with a Companion Device (CD) application in a CD by receiving a discovery request from the CD and providing an endpoint for a WebSocket server of the PD; handling, by the WebSocket server, a connection established by the CD application based on the endpoint; in response to receiving a query for a current service from the CD, transmitting, by the WebSocket server, a response including information representing the current service to the CD application based on the connection; receiving, by a tuner, a broadcast signal having signaling information including flag information to obtain emergency data in the broadcast signal; time de-interleaving, by a time de-interleaver, Forward Error Correction (FEC) blocks including the emergency data based on a Time Interleaving (TI) block, wherein the FEC blocks are de-interleaved based on positions for the FEC blocks and one or more virtual FEC blocks; and transmitting, by the Websocket server, a notification message including the emergency data to the CD, in which the notification message includes a category for the emergency data.

公开(公告)号：US20220006885A1

公开(公告)日：2022-01-06

申请号：US17480708

申请日：2021-09-21

Applicant: LG ELECTRONICS INC.

Inventor： Woosuk KWON ,  Sejin OH ,  Woosuk KO ,  Sungryong HONG ,  Kyoungsoo MOON

IPC: H04L29/08 ,  H04H60/73 ,  H04L29/06

Abstract: A method for transmitting a broadcast signal in a digital broadcast transmitter includes generating at least one link layer packet including a header and a payload; and transmitting the broadcast signal carrying the link layer packet. Further, the header includes a fixed header having a fixed length and the fixed header includes packet type information of input data before encapsulation into the layer packet, further the input data relates to an IP packet or a signaling packet.

公开(公告)号：US20210314076A1

公开(公告)日：2021-10-07

申请号：US17345873

申请日：2021-06-11

Applicant: LG ELECTRONICS INC.

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

IPC: H04H20/59 ,  H04N21/478 ,  H04N7/08 ,  H04N21/81 ,  H04N21/61 ,  H04W4/90 ,  H04W4/06

Abstract: A method of processing a broadcast signal includes physical layer processing a plurality of packets into a plurality of data pipes to form a signal frame of the broadcast signal. Further, a packet includes an emergency alert message for an emergency alert service so that a data pipe carries the emergency alert massage, the emergency alert message including a message identifier (ID) for identifying the emergency alert message and a service ID identifying a service related to the emergency alert message. The physical layer processing further includes encoding data in each data pipe; bit interleaving the encoded data in each data pipe; and time interleaving the bit interleaved data in each data pipe according to a first mode or a second mode, the first mode represents that the time interleaving is performed based on convolutional interleaving operation, the second mode represents that the time interleaving is performed based on a combination of block interleaving operation and convolutional interleaving operation; and transmitting the broadcast signal. In addition, the broadcast signal further includes physical layer signaling information, the physical layer signaling information including a signaling information representing that the data pipe carries the emergency alert message and time interleaving signaling information related to the first mode and the second mode.

公开(公告)号：US20210185486A1

公开(公告)日：2021-06-17

申请号：US17188398

申请日：2021-03-01

Applicant: LG ELECTRONICS INC.

Inventor： Woosuk KWON ,  Woosuk KO ,  Sungryong HONG ,  Sejin OH ,  Kyoungsoo MOON

IPC: H04W4/06 ,  H04L1/00 ,  H04H20/00 ,  H04L29/06

Abstract: A method of transmitting broadcast signals, includes link layer processing input packets to generate link layer packets, wherein a link layer packet of the link layer packets includes a header and a payload, wherein the payload of the link layer packet includes a segment of an input packet or concatenated input packets, wherein the header of the link layer packet includes a first field for identifying whether the payload includes the segment or the concatenated input packets, wherein the header further includes a second field for identifying a number of the concatenated input packets and third fields that are included in the header in the same order as the concatenated input packets present in the payload in response to the first field representing that the payload includes the concatenated input packets, and wherein the third fields represent a length of each of the concatenated input packets.

公开(公告)号：US20210135914A1

公开(公告)日：2021-05-06

申请号：US17148373

申请日：2021-01-13

Applicant: LG ELECTRONICS INC.

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

IPC: H04L27/26 ,  H04L1/00 ,  H04L25/02

Abstract: A broadcast signal receiver is disclosed. A broadcast signal receiver according to an embodiment of the present invention comprises a synchronization & demodulation module performing signal detection and OFDM demodulation on a received broadcast signal; a frame parsing & deinterleaving module performing parsing and deinterleaving of a signal frame of the broadcast signal; a demapping & decoding module performing conversion of data of at least one Physical Layer Pipe (PLP) of the broadcast signal into the bit domain and FEC decoding of the converted PLP data; and an output processing module outputting a data stream by receiving the at least one PLP data.

公开(公告)号：US20210044446A1

公开(公告)日：2021-02-11

申请号：US17078434

申请日：2020-10-23

Applicant: LG ELECTRONICS INC.

Inventor： Jangwon LEE ,  Sejin OH ,  Kyoungsoo MOON ,  Woosuk KO ,  Sungryong HONG

IPC: H04L12/18 ,  H04L29/08 ,  H04L29/06 ,  H04W4/06 ,  H04W28/02

Abstract: A broadcast signal transmission method includes generating, by a packetizer, a first transport packet carrying one or more fragments of a delivery object and a second transport packet carrying signaling data based on an Asynchronous Layered Coding/Layered Coding Transport (ALC/LCT) scheme. Further, a header of the first transport packet includes offset information representing a starting byte position of a fragment of the delivery object included in the first transport packet, the header of the first transport packet includes Transport Object Identifier (TOI) information that is mapped to Uniform Resource Locator (URL) information for the delivery object described in the signaling data and Transport Session Identifier (TSI) information for identifying a transport session, and the signaling data includes content type information presenting a type of a content.

公开(公告)号：US20200344101A1

公开(公告)日：2020-10-29

申请号：US16928394

申请日：2020-07-14

Applicant: LG ELECTRONICS INC.

Inventor： Jaehyung KIM ,  Woosuk KO ,  Sungryong HONG

IPC: H04L27/26 ,  H04B1/00 ,  H04B7/00 ,  H04L27/22

Abstract: A method for transmitting a broadcast signal includes encoding service data; encoding signaling data; building one or more signal frames including one or more data symbols carrying the encoded service data and one or more preamble symbols carrying the encoded signaling data; modulating the one or more preamble symbols and the one or more data symbols into one or more preamble Orthogonal Frequency Division Multiplex (OFDM) symbols and one or more data OFDM symbols by an OFDM scheme; normalizing average power of the one or more preamble OFDM symbols and the one or more data OFDM symbols in time domain using power normalization factors. Further, a power normalization factor for a preamble OFDM symbol is obtained using frequency domain total power of the preamble OFDM symbol in frequency domain, the frequency domain total power of the preamble OFDM symbol is 7737.10 when a Fast Fourier Transform (FFT) size is 8K, a guard interval length is 1024 samples, separation of scattered pilot bearing carriers is 3 carriers and carrier reduction (Cred) coefficient is 0 for the preamble OFDM symbol. The method also includes transmitting the broadcast signal having OFDM symbols including the one or more preamble OFDM symbols and the one or more data OFDM symbols.

公开(公告)号：US20200336792A1

公开(公告)日：2020-10-22

申请号：US16919322

申请日：2020-07-02

Applicant: LG ELECTRONICS INC.

Inventor： Minsung KWAK ,  Seungryul YANG ,  Kyoungsoo MOON ,  Woosuk KO ,  Sungryong HONG

IPC: H04N21/472 ,  H04N21/2362 ,  H04N21/258 ,  H04N21/6547 ,  H04N21/81 ,  H04N21/84 ,  H04N21/43 ,  H04L1/00 ,  H04N21/235 ,  H04N21/254 ,  H04N21/262 ,  H04N21/4147 ,  H04N21/643

Abstract: A method for receiving a broadcast signal includes receiving the broadcast signal; frequency deinterleaving data in the broadcast signal based on an address generator the address generator including a sequence generator generating a sequence, a symbol offset generator generating a symbol offset, after applying the symbol offset to the sequence, the sequence to which the symbol offset is applied is checked whether an address of the sequence is within a range for the frequency deinterleaving, the address within the range is used for the frequency deinterleaving; decoding the frequency deinterleaved data of a signal frame in the broadcast signal, the decoded signal frame including one or more components included in a content and content information describing the content, the content information including component information including role information for at least one of an audio component, a video component, a closed caption component or an application component of the one or more components; and displaying information related to the content based on the role information of the one or more components of the content in the decoded broadcast signal.