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：US20200260495A1

公开(公告)日：2020-08-13

申请号：US16637645

申请日：2018-08-09

Applicant: LG Electronics Inc.

Inventor： Jaehyung KIM ,  Changhwan PARK ,  Joonkui AHN ,  Seokmin SHIN ,  Suckchel YANG ,  Seunggye HWANG

IPC: H04W74/08 ,  H04W74/00

Abstract: The present invention relates to a method for performing, by a terminal, a random access process in a wireless communication system supporting first and second preamble formats, and an apparatus therefor. Particularly, the present invention relates to a method comprising: a step of receiving narrowband physical random access channel (NPRACH) configuration information; and a step of transmitting a random access preamble on the basis of a preamble format indicated by the NPRACH configuration information of the first and second preamble formats, wherein the length of one symbol of the second preamble format corresponds to three times the length of one symbol of the first preamble format, and the first preamble format has a frequency grid spacing of 3.75 kHz, and the second preamble format has a frequency grid spacing of 1.25 kHz, and to an apparatus therefor.

公开(公告)号：US20200177329A1

公开(公告)日：2020-06-04

申请号：US16786456

申请日：2020-02-10

Applicant: LG Electronics Inc.

Inventor： Youngtae KIM ,  Yunjung YI ,  Jaehyung KIM ,  Duckhyun BAE ,  Inkwon SEO ,  Suckchel YANG ,  Hyunho LEE ,  Daesung HWANG

IPC: H04L5/00 ,  H04W76/15 ,  H04W72/12 ,  H04W74/08

Abstract: The present invention relates to a method for an NR (New Radio Access Technology) user equipment to transmit and receive a signal in a wireless communication system and an apparatus therefor. The method comprises the steps of checking a PDCCH (Physical Downlink Control Channel) order and, if the PDCCH order is checked, initiating a random access procedure. In this case, if a first uplink carrier and a second uplink carrier are configured, the random access procedure is configured to transmit a random access preamble via a specific uplink carrier corresponding to an indicator associated with the PDCCH order among the first uplink carrier and the second uplink carrier.

公开(公告)号：US20200080245A1

公开(公告)日：2020-03-12

申请号：US16469787

申请日：2017-12-12

Applicant: LG ELECTRONICS INC.

Inventor： Jaehyung KIM ,  Hyungha KANG ,  Semin JANG ,  Joosik JUNG

IPC: D06F35/00 ,  D06F58/10 ,  D06F58/20

Abstract: A clothes treating device includes a clothes accommodation part for accommodating clothes or laundry, a water supply pipe for supplying water into the clothes treating device, and a drain pipe for discharging water to the outside of the clothes treating device. A pump assembly generates a flow of water inside the water supply pipe and the drain pipe by using the rotation of a motor. The flow of water is generated only in one of the water supply pipe and the drain pipe depending on the rotating direction of the motor.

公开(公告)号：US20200076658A1

公开(公告)日：2020-03-05

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: 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：US20190058619A1

公开(公告)日：2019-02-21

申请号：US16140000

申请日：2018-09-24

Applicant: LG ELECTRONICS INC.

Inventor： Jaehyung KIM ,  Woosuk KO ,  Sungryong HONG

IPC: H04L27/26 ,  H04L12/18 ,  H04L5/00 ,  H04L1/00 ,  H04H20/42 ,  H04H60/11 ,  H03M13/00

CPC classification number: H04L27/263 ,  H03M13/00 ,  H03M13/1165 ,  H03M13/152 ,  H03M13/253 ,  H03M13/255 ,  H03M13/2707 ,  H03M13/2778 ,  H03M13/2906 ,  H03M13/6362 ,  H04H20/42 ,  H04H60/11 ,  H04L1/0041 ,  H04L1/0052 ,  H04L1/0058 ,  H04L1/0065 ,  H04L1/0071 ,  H04L1/0075 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/005 ,  H04L12/18 ,  H04L27/2602 ,  H04L27/2613 ,  H04L27/265

Abstract: Disclosed herein is a broadcast signal receiver. The broadcast signal receiver according to an embodiment of the present invention includes a synchronization and demodulation module configured to perform detection and OFDM demodulation on a received broadcast signal, a frame parsing and deinterleaving module configured to parse and deinterleave the signal frame of the broadcast signal, a demapping and decoding module configured to convert the data of at least one Physical Layer Pipe (PLP) of the broadcast signal into a bit domain and to FEC-decode the PLP data, and an output processing module configured to receive the data of the at least one PLP and to output the received data in a data stream form.

公开(公告)号：US20190052498A1

公开(公告)日：2019-02-14

申请号：US16164160

申请日：2018-10-18

Applicant: LG ELECTRONICS INC.

Inventor： Jaehyung KIM ,  Woosuk KO ,  Sungryong HONG

IPC: H04L27/26 ,  H04L1/00 ,  H04L12/18 ,  H04L5/00 ,  H03M13/29 ,  H03M13/27

CPC classification number: H04L27/2602 ,  H03M13/09 ,  H03M13/1102 ,  H03M13/152 ,  H03M13/255 ,  H03M13/2707 ,  H03M13/271 ,  H03M13/2906 ,  H04L1/0004 ,  H04L1/001 ,  H04L1/0025 ,  H04L1/0041 ,  H04L1/0052 ,  H04L1/0057 ,  H04L1/0065 ,  H04L1/0071 ,  H04L5/0048 ,  H04L5/0091 ,  H04L12/18 ,  H04L12/189 ,  H04L27/2607 ,  H04L27/2613 ,  H04L27/2626 ,  H04L27/2628 ,  H04L27/2647 ,  H04L27/265

Abstract: A broadcast signal receiver includes a tuner configured to receive a broadcast signal; a pilot detector configured to detect pilots included in the broadcast signal; a de-framer configured to de-frame a signal frame of the broadcast signal and to extract Physical Layer Pipe (PLP) data from the signal frame; and a decoder configured to decode the PLP data, wherein the signal frame comprises a bootstrap, a preamble, and the PLP data, wherein the bootstrap comprises first information for indicating system bandwidth, second information for emergency alert wake up, and third information for indicating structure of the preamble, wherein the preamble comprises a plurality of preamble symbols, the preamble carrying Layer 1 (L1) signaling data for the signal frame, and wherein the foremost preamble symbol comprises fourth information indicating a number of at least one remaining preamble symbol.

公开(公告)号：US20180206081A1

公开(公告)日：2018-07-19

申请号：US15918158

申请日：2018-03-12

Applicant: LG ELECTRONICS INC.

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

IPC: H04W4/06 ,  H04W52/54 ,  H04W52/32 ,  H04L27/26 ,  H04L5/00

CPC classification number: H04W4/06 ,  H04L5/0007 ,  H04L5/0048 ,  H04L27/2613 ,  H04L27/2626 ,  H04L27/2666 ,  H04W52/325 ,  H04W52/54

Abstract: A broadcast signal transmitter includes an encoder configured to perform outer encoding and inner encoding on Physical Layer Pipe (PLP) data, a time interleaver configured to interleave the PLP data on which the outer encoding and the inner encoding are performed, a framer configured to generate a signal frame comprising the interleaved PLP data, the signal frame comprising a preamble and at least one subframe, a frequency interleave configured to interleave data comprised in the generated signal frame, a pilot inserter configured to insert Scattered Pilots (SPs) into the signal frame comprising the interleaved data, and a modulator configured to modulate the SPs inserted signal frame by Orthogonal Frequency Division Multiplexing (OFDM) modulation scheme.

公开(公告)号：US20180123754A1

公开(公告)日：2018-05-03

申请号：US15722770

申请日：2017-10-02

Applicant: LG Electronics Inc.

Inventor： Byounggill KIM ,  Jaehyung KIM ,  Woosuk KO ,  Sungryong HONG

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

CPC classification number: H04L5/0046 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0065 ,  H04L1/0071 ,  H04L1/06 ,  H04L1/08 ,  H04L5/0053 ,  H04L27/0008 ,  H04L27/2601 ,  H04L27/2628 ,  H04L27/265

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：US20170359143A1

公开(公告)日：2017-12-14

申请号：US15689805

申请日：2017-08-29

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 ,  H04L1/06 ,  H04L1/08 ,  H04L27/26

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.