Lg Electronics Inc.

Jongwoong Shin

Woosuk Ko

Sungryong Hong

Jinwoo Kim

Sangchul Moon

Bonghoe Kim

Jaehyung Kim

Jongseob Baek

Jaeho Hwang

Kwangseok Noh

Ilmu Byun

Yonghak Suh

Seunggye Hwang

Kijun Kim

Joonkui Ahn

Hyangsun You

Soocheol Kyeong

Sungryoung Hong

Hyunsoo Ko

Byounghoon Kim

Sungjin Kim

Dongkyu Kim

Byoung Hoon Kim

Chulkyu Mun

Byounggill Kim

Woochan Kim

Sung Ryong Hong

Kookyeon Kwak

Sanchul Moon

Jaehoon Chung

Sunam Kim

Kyung Ho Lee

Jong Ku Lee

Llmu Byun

The present disclosure is for performing retransmission in a wireless communication system, and a method by which a first device operates in a wireless communication system comprises the steps of: receiving, from a second device, a first signal comprising outer- and inner-coded data; detecting information-bit-based first-type inner code blocks and parity-bit-based second-type inner code blocks by inner decoding the data in correspondence to the inner coding; confirming the location and the number of at least one bit with a possibility of error, among outer block codes, on the basis of the location of inner code blocks for which decoding has failed; deciding to request retransmission on the basis of the location and the number of the at least one bit; and requesting, to the second device, on the basis of the location and the number of the at least one bit, retransmission of at least one of an information portion or a parity portion of outer code blocks.

Method and device for performing retransmission in wireless communication system

A method of operating a user equipment (UE) and a base station in a wireless communication system and an apparatus supporting this are disclosed. The method of operating the UE may comprise encoding input data based on a neural network and transmitting the encoded input data to a base station. In this case, the neural network may be determined to be at least one of a real neural network or a complex neural network.

Method and apparatus for transmitting and receiving signals of user equipment and base station in wireless communication system

The present disclosure a method of operating user equipment (UE) in a wireless communication system, the method comprising: identifying layer information that is applied to a neural polar code; generating, based on the identified layer information, transmission data by encoding data that is input into the neural polar code; and transmitting the transmission data to a base station, wherein, based on polar code transformation, the neural polar code generates the transmission data by performing encoding, based on the polar code transformation, from an initial layer of the data to a first layer according to the identified layer information and by performing encoding through a neural network-based autoencoder after the first layer until the transmission data is generated.

Method and apparatus for performing channel coding of UE and base station in wireless communication system

A method of operating a terminal and a base station in a wireless communication system and apparatus supporting them are disclosed. A method of operating a first apparatus in a wireless communication system comprises transmitting a pilot signal to a second apparatus, determining at least one coding rate and modulation order based on channel information generated based on the pilot signal, channel-coding a transport block according to the at least one coding rate and modulation order, and transmitting at least one modulation symbol generated based on a second part of the transport block to the second apparatus through a transmit antenna combination determined based on a first part of the channel-coded transport block.

Method and apparatus for transmitting and receiving signal by using multiple antennas in wireless communication system

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.

Apparatus for transmitting broadcast signals, apparatus for receiving broadcast signals, method for transmitting broadcast signals and method for receiving broadcast signals

A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for transmitting broadcast signals comprises an encoder for encoding service data, a mapper for mapping the encoded service data into a plurality of OFDM (Orthogonal Frequency Division Multiplex) symbols to build at least one signal frame, a frequency interleaver for frequency interleaving data in the at least one signal frame by using a different interleaving-seed which is used for every OFDM symbol pair comprised of two sequential OFDM symbols, a modulator for modulating the frequency interleaved data by an OFDM scheme and a transmitter for transmitting the broadcast signals having the modulated data, wherein the different interleaving-seed is generated based on a cyclic shifting value and wherein an interleaving seed is variable based on an FFT size of the modulating.

A disclosure of the present specification provides a method for transmitting data by a transmitter. The method may comprise the steps of: when a transport block (TB) is divided into n data blocks, adding additional information after each of the n data blocks; and adding a cyclic redundancy check (CRC) after the last additional information. Here, the CRC may be generated on the basis of the n data blocks, and the n pieces of additional information added after each of data blocks.

Data transmission method and apparatus

A method for encoding a quasi-cyclic low-density parity-check (LDPC) code according to an embodiment of the present invention may comprise the steps of: generating a multi-edge LDPC code matrix including a high rate code matrix and a single parity check code matrix; and encoding a signal by using the multi-edge LDPC code matrix, wherein the single parity check code matrix includes a first matrix having a non-row-orthogonal structure matrix and a second matrix having a pure row-orthogonal structure, which are concatenated.

Method for transmitting LDPC code using row-orthogonal and apparatus therefor

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 lease one signal frame by an Orthogonal Frequency Division Multiplexing, OFDM, scheme and a transmitter for transmitting the broadcast signals having the modulated data.

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.

In a wireless communication system, a physical broadcast channel (PBCH) is encoded based on a Polar code and then is transmitted. Half-frame information within the PBCH is mapped to a bit position 247 among bit positions of the Polar code and synchronization signal and PBCH block (SSB) index information within the PBCH is mapped to bit positions 253, 254, and 255 of the Polar code.

Method and apparatus for transmitting PBCH and method and apparatus for receiving PBCH

A method for transmitting a HARQ ACK/NACK feedback by a terminal may comprise: a step of transmitting, to a base station, a HARQ ACK/NACK feedback for a first downlink data, on a code block group (CBG) basis; a step of receiving, from the base station, a control channel including a specific control information; and a step of transmitting a HARQ ACK/NACK feedback on a transport block (TB) basis on the basis of the specific control information, for a second downlink data scheduled and received by the control channel, even if a CBG based retransmission is set for the terminal.

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Seoul, South Korea

Jongwoong Shin