Samsung Electronics Co., Ltd.

Sungkyunkwan University

Postech Research and Business Development Foundation

Hongsil Jeong

Seho Myung

Min Hee Jang

Jeongho Yeo

Sungjin Park

Hyunseok Ryu

Belkacem Mouhouche

Jonghwan Kim

Sangheon Kim

Alain Mourad

Jiwon Park

Min Jung Jang

Kyungjoong Kim

Seokki Ahn

Hayoung Yang

Jaeyoel Kim

Joohyun Lee

Min Jun Jang

Yangsoo Kwon

Kyeongyeon Kim

Hakju Lee

Kyeongcheol Yang

Sanghyo Kim

Hyosang Ju

Hyunjae Lee

Daeyeol Yang

Hyuntack Lim

HyunJae Lee

Sungryul Yun

The disclosure relates to a communication technique for convergence between an IoT technology and a 5G communication system for supporting a higher data transmission rate beyond a 4G system, and a system thereof. The disclosure may be applied to intelligence services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail businesses, security and safety related services, etc.) based on a 5G communication technology and an IoT-related technology. The disclosure provides a method for transmitting uplink control information and/or uplink data by a terminal according to multiple priorities, a method for receiving uplink control information and/or uplink data by a base station according to multiple priorities, and an apparatus therefor.

Method and apparatus for uplink transmission in wireless communication system

The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). An apparatus and a method for channel encoding and decoding in a communication or broadcasting system is provided. According to the present disclosure, the method for channel encoding in a communication or broadcasting system includes determining a block size Z, and performing encoding based on the block size and a parity check matrix corresponding to the block size, in which the block size is included in any one of the plurality of block size groups and the parity check matrix is different for each block size group.

Apparatus and method for channel encoding/decoding in communication or broadcasting system

A method of a transmitting device in a wireless communication system, includes: obtaining an encoded bit stream from information bits using a polar code; transmitting a first signal generated through a first modulation of the encoded bit stream; performing reverse mapping on the encoded bit stream; and transmitting a second signal generated through a second modulation of the reverse-mapped encoded bit stream.

Device and method for encoding or decoding polar code in communication system

The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A channel encoding method in a communication or broadcasting system includes identifying an input bit size, determining a block size (Z), determining an LDPC sequence for LDPC encoding, and performing the LDPC encoding based on the LDPC sequence and the block size.

Method and apparatus for channel encoding and decoding in communication or broadcasting system

An apparatus and method for efficiently decoding a low-density parity-check (LDPC) code in a communication or broadcasting system are provided. The disclosure relates to performing decoding of an LDPC code by using layered scheduling or a method equivalent thereto, and provides an LDPC decoding apparatus and method for improving decoding performance without increasing decoding complexity by applying appropriate decoding scheduling according to structural or algebraic characteristics of an LDPC code.

Method and apparatus for data decoding in communication or broadcasting system

This disclosure relates to a 5G or pre-5G communication system for supporting a higher data transfer rate than a 4G communication system such as LTE. The present invention relates to a method for encoding and decoding a channel in a communication or broadcasting system, comprising the steps of determining an input bit size (CBS), determining a code rate (R), determining a size (Z) of a block, comparing the determined CBS and code rate with predetermined reference values, determining an LDPC sequence to perform LDPC encoding according to the comparison result, and performing LDPC encoding and decoding on the basis of the LDPC sequence and the block size. Further, the present invention comprises the steps of determining a code rate (R) indicated by a modulation and coding scheme (MCS) index, determining a transport block size, and determining either a first basic matrix or a second basic matrix as a basic matrix on the basis of the transport block size and the code rate.

Method and apparatus for encoding/decoding channel in communication or broadcasting system

The disclosure relates to a pre-5th-generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-generation (4G) communication system such as long term evolution (LTE). An operating method of a user equipment (UE) in a communication system includes performing radio resource control (RRC) signaling with a base station, determining a code rate based on an RRC configuration according to the RRC signaling, and determining a size of data using the code rate.

Apparatus and method for transmitting control information in communication system

The present disclosure relates to a 5th (5G) generation) or pre-5G communication system for supporting a higher data transmission rate beyond a 4th (4G) generation communication system such as long term evolution (LTE). The present disclosure relates to false alarm detection of detecting in a wireless communication system, and an operating method of a receiving node may include receiving a signal from a transmitting node, obtaining a plurality of decoding paths by decoding bits contained in the received signal, and determining whether the decoding is successful based on a detection metric determined based on values representing path metrics of the plurality of the decoding paths.

Apparatus and method for detecting false alarm of decryption in wireless communication system

The present disclosure relates to a pre-5-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4-Generation (4G) communication system such as Long Term Evolution (LTE). The present disclosure discloses a method for effective retransmission when HARQ is applied to data encoded with a low density parity check (LDCP) code. A data transmission method of the transmitter may include: initially transmitting data encoded with an LDPC code to a receiver; receiving a negative acknowledgement (NACK) from the receiver; determining retransmission related information for data retransmission; and retransmitting, in response to the NACK, LDPC-encoded data based on the retransmission related information.

Apparatus and method of transmission using HARQ in communication or broadcasting system

A pre-5th-generation (pre-5G) or 5G communication system for supporting higher data rates beyond a 4th-generation (4G) communication system, such as long term evolution (LTE) is provided. A channel encoding method in a communication or broadcasting system includes identifying an input bit size, determining a block size (Z), determining a low density parity check (LDPC) sequence to perform LDPC encoding, and performing the LDPC encoding based on the LDPC sequence and the block size.

The present invention related to a 5G or pre-5G communication system to be provided to support a higher data transmission rate since 4G communication systems like LTE. The present invention relates to a method and an apparatus for encoding a channel in a communication or broadcasting system supporting parity-check matrices having various sizes are provided. The method for encoding a channel includes determining a block size of the parity-check matrix; reading a sequence for generating the parity-check matrix, and transforming the sequence by applying a previously defined operation to the sequence based on the determined block size.

Apparatus and method for encoding and decoding channel in communication or broadcasting system

A method may include, and/or a device may be configured for: receiving, from a transmitting device, a signal corresponding to input bits; performing demodulation based on the signal to determine values corresponding to the input bits; identifying a number of the input bits based on the signal; identifying a base matrix and a lifting size based on the number of the input bits; identifying a parity check matrix based on the base matrix; determining a number of layers based on the lifting size and a number of the values; determining an order of layers for low density parity check (LDPC) decoding based on the number of layers; and performing the LDPC decoding to determine the input bits based on the values, the parity check matrix, and the order of layers.

A communication method for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The method includes identifying a length of information bits to be encoded; identifying a length of transmission bits; determining a size of a code for a polar encoding based on the length of the transmission bits, a maximum size of the code, and a minimum size of the code; identifying a codeword by the polar encoding of the information bits based on the determined size of the code; and obtaining the transmission bits based on the length of the transmission bits.

Method and apparatus for rate-matching of polar codes

The disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The disclosure relates to encoding and decoding by using a polar code in a wireless communication system, and an operation method of a transmission-end apparatus includes determining segmentation and the number of segments, based on parameters associated with encoding of information bits, encoding the information bits according to the number of check bits, and transmitting the encoded information bits to a reception-end apparatus.

Growing community of inventors

Suwon-si, South Korea

Hongsil Jeong