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Применить Всего найдено 42. Отображено 42.
28-12-2016 дата публикации

ENCODING METHOD AND APPARATUS USING RATE COMPATIBLE LOW DENSITY PARITY CHECK CODE IN COMMUNICATION SYSTEM

Номер: KR1020160150057A
Автор: JANG, MIN, AHN, SEOK KI, LIM, CHI WOO, KIM, JAE YOEL, PARK, WOO MYOUNG
Принадлежит:

The present disclosure relates to a 5G or pre-5G communication system for supporting a higher data rate after a 4G communication system such as LTE. Particularly, the present disclosure relates to an RC-LDPC encoding method and apparatus. The encoding method using LDPC in a communication system according to an embodiment of the present disclosure includes a process of performing LDPC coding on information bits with a first rate compatible; and a process of performing single parity check (SPC) encoding concatenated with at least one second rate compatible lower than the first rate compatible on the coded bits. So, complexity can be reduced in the communication system. COPYRIGHT KIPO 2017 (707) Density of 1 ↓ compared to diagonal extension (713) Restriction of the position of the 1 depending on an MCS stage (AA) Simple element encoding function compared to general extension ...

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Номер записи: 1
15-02-2016 дата публикации

APPARATUS AND METHOD FOR TRANSCEIVING DATA USING NON-BINARY CHANNEL CODE IN WIRELESS COMMUNICATIONS SYSTEM

Номер: KR1020160015711A
Автор: AHN, SEOK KI, PARK, WOO MYOUNG, SA, GONG MIN, LIM, CHI WOO, HONG, SUNG NAM
Принадлежит:

According to an embodiment of the present disclosure, a method for transmitting data in a wireless communications system, comprises the following steps: modulating at least one code symbol according to a predetermined modulation scheme to generate at least one modulation symbol; and transmitting the generated modulation symbol. In the step of generating the modulation symbol, the modulation symbol is generated from the code symbol in order to minimize a complex modulation symbol generated from a plurality of code symbols. COPYRIGHT KIPO 2016 (111) Encoder (113) Modulator (310) Code symbol which is GF(256) (315) Bit group (320) 64-QAM modulation symbol ...

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Номер записи: 2
02-02-2023 дата публикации

비지도 대조 학습을 통해 데이터를 분류할 수 있는 방법, 컴퓨터 장치, 및 컴퓨터 프로그램

Номер: KR20230016537A
Автор: 최성재, 강재욱, 박우명, 고동현
Принадлежит:

... 비지도 대조 학습을 통해 데이터를 분류할 수 있는 방법, 컴퓨터 장치, 및 컴퓨터 프로그램이 개시된다. 데이터 분류 방법은, 주어진 데이터의 문맥 표현(contextual representation)에 대한 제1 유사도 행렬을 생성하는 단계; 상기 문맥 표현을 보완한 보조 표현(auxiliary representation)에 대한 제2 유사도 행렬을 생성하는 단계; 상기 제1 유사도 행렬과 상기 제2 유사도 행렬을 결합하여 제3 유사도 행렬을 생성하는 단계; 및 상기 제3 유사도 행렬을 이용한 대조 학습(contrastive learning)을 통해 데이터 분류를 위한 모델 학습을 수행하는 단계를 포함한다.

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Номер записи: 3
06-10-2016 дата публикации

METHOD AND DEVICE FOR TRANSMITTING DOWNLINK INFORMATION IN WIRELESS COMMUNICATION SYSTEM

Номер: WO2016159736A1
Автор: LIM, Chi-Woo, PARK, Woo-Myoung
Принадлежит:

The present disclosure relates to a 5G or pre-5G communication system which is to be provided to support a higher data transfer rate beyond a 4G communication system such as an LTE. A method for transmitting a downlink signal by a base station in a wireless communication system supporting non-orthogonal multiple access (NOMA) comprises the steps of: selecting a pair of terminals including one short-distance terminal and at least one long-distance terminal which will share an identical downlink transmission resource; generating a superimposed signal in which a signal for the short-distance terminal and a signal for the long-distance terminal are superimposed on one another; generating information necessary for cancelling the signal of the long-distance terminal from the superimposed signal; transmitting the generated information necessary for cancelling the signal of the long-distance terminal to the short-distance terminal; and transmitting the generated superimposed signal to the pair ...

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Номер записи: 4
27-10-2015 дата публикации

METHOD AND APPARATUS FOR GENERATING CODEWORD, AND METHOD AND APPARATUS FOR RESTORING CODEWORD

Номер: KR1020150120235A
Автор: PARK, WOO MYOUNG, KIM, SANG MIN, LIM, CHI WOO
Принадлежит:

Disclosed are a method and apparatus for generating a codeword, and a method and apparatus for restoring a codeword. According to the present invention, the method for generating a codeword comprises the following steps: calculating, by an encoder, the number of symbol nodes punctured among symbol nodes included in a codeword; puncturing a symbol node positioned at an even number or an odd number among the symbol nodes included in the codeword; calculating the number of symbol nodes which additionally need a puncture based on the number of symbol nodes to be punctured; classifying the symbol nodes, which additionally need the puncture based on the number of the symbol nodes which additionally need the puncture, into one or more puncture node groups; determining a position where the puncture node groups are disposed on the codeword; and puncturing the symbol nodes included in the codeword which belongs to the puncture node groups according to the determined position. A transmission unit ...

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Номер записи: 5
30-12-2016 дата публикации

MULTIPLE USER SUPERPOSITION TRANSMISSION METHOD AND APPARATUS

Номер: KR1020160150610A
Автор: LIM, CHI WOO, YU, HYUN KYU, KIM, JAE WON, PARK, WOO MYOUNG
Принадлежит:

A multiple user superposition transmission method and an apparatus thereof are disclosed. The method includes a process of transmitting a signaling message including the indicator of multiple user superposition transmission to a first one of terminals where the multiple user superposition transmission is scheduled, a process of transmitting a first downlink control information (DCI) including transmission information for the first terminal and a second DCI including transmission information for at least one second terminal except the first terminal among the terminals where the multiple user superposition transmission is scheduled to the first terminal; and a process of overlapping a first downlink signal including data for the first terminal and a second downlink signal including data for the second terminal on the same resource and transmitting them. So, the multiple user superposition transmission can be effectively supported in the downlink of a cellular system. COPYRIGHT KIPO 2017 ...

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Номер записи: 6
23-06-2016 дата публикации

MESSAGE TRANSMISSION AND RECEPTION TECHNIQUE USING CHANNEL COMBINING AND SPLITTING

Номер: WO2016099157A1
Автор: PARK, Woo-Myoung, AHN, Seok-Ki, LIM, Chi-Woo
Принадлежит:

The present disclosure relates to a 5G or pre-5G communication system for supporting a higher data transmission rate than a 4G communication system such as LTE. The present disclosure provides a method for transmitting messages using a channel combining/splitting transmission scheme, which is a transmission scheme for combining transmission signals through a first channel with a part of or all transmission signals through a second channel in a wireless communication system comprising at least two communication channels, the method comprising the steps of: splitting the messages into a first part to be transmitted to the first channel, which is a degradation channel, and a second part to be transmitted to the second channel, which is an enhancement channel; generating first modulation signals by performing a channel encoding and frequency quadrature amplitude modulation (FQAM) on the first part and generating second modulation signals by performing a channel encoding and quadrature amplitude ...

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Номер записи: 7
22-09-2015 дата публикации

APPARATUS AND METHOD FOR CORRECTING ERROR IN MOBILE COMMUNICATIONS SYSTEM USING NON-BINARY LOW-DENSITY PARITY-CHECK CODE

Номер: KR1020150106686A
Автор: KIM, SANG MIN, PARK, WOO MYOUNG, LIM, CHI WOO
Принадлежит:

The present invention relates to an apparatus and method for correcting an error in a mobile communications system using a non-binary low-density parity-check code (LDPC). According to an embodiment of the present invention, the number of input messages (nm) of a corresponding check node, is controlled when an unsatisfied check equation increases depending on an increase in the number of iteration. Also, the present invention relates to a method for selecting a message. According to the other embodiment of the present invention, data distribution characteristics of a converted message vector value, are recognized by using the signal to noise ratio (SNR) of a receiver, and a modulation and coding scheme (MCS) parameter in order to select a message value which is lower than the threshold in each message vector. COPYRIGHT KIPO 2015 (A1, A2) Decoding succeeded after applying a proposed method ...

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Номер записи: 8
21-01-2021 дата публикации

/ APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING SIGNAL IN COMMUNICATION SYSTEM SUPPORTING BIT INTERLEAVED CODED MODULATION WITH ITERATION DECODING SCHEME

Номер: KR102205614B1
Автор: 하정석, 박우명, 이상아, 이재윤
Принадлежит: 삼성전자주식회사, 한국과학기술원

... 본 발명은 반복 복호를 사용하는 비트 인터리빙 부호화 변조(bit interleaved coded modulation with iterative decoding: BICM-ID) 방식을 지원하는 통신 시스템의 신호 송신 장치에서 신호 송신 방법에 있어서, 입력 메시지에 대해 미리 설정되어 있는 외부 부호화 방식을 기반으로 하는 외부 부호화 동작을 수행하여 외부 부호를 생성하는 과정과, 상기 외부 부호에 대해 미리 설정되어 있는 생성 행렬을 기반으로 하는 인터리빙 방식에 상응하게 인터리빙 동작을 수행하여 인터리빙된 신호를 생성하는 과정과, 상기 인터리빙된 신호에 대해 미리 설정되어 있는 내부 부호화 방식을 기반으로 하는 내부 부호화 동작을 수행하여 내부 부호를 생성하는 과정과, 상기 내부 부호에 대해 미리 설정되어 있는 변조 방식을 기반으로 변조 동작을 수행하여 변조된 신호를 생성하는 과정과, 상기 변조된 신호를 송신하는 과정을 포함하며, 상기 생성 행렬은 쿼지-사이클릭(quasi-cyclic: QC) 인터리버에 대한 생성 행렬에 미리 설정되어 있는 열 치환 규칙과 행 치환 규칙 중 적어도 하나를 적용하여 생성된 행렬임을 특징으로 한다.

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Номер записи: 9
07-10-2015 дата публикации

APPARATUS AND METHOD FOR DECODING IN MOBILE COMMUNICATION SYSTEM USING NON-BINARY LOW-DENSITY PARITY-CHECK CODES

Номер: KR1020150112291A
Автор: KIM, SANG MIN, PARK, WOO MYOUNG, AHN, SEOK KI, LIM, CHI WOO
Принадлежит:

According to an embodiment of the present invention, a method for decoding in a mobile communication system using non-binary low density parity check (LDPC) codes may include the steps of: selecting a message value which has the highest reliability from each column and row of an input vector message; producing a configuration set by using the selected message value of each column and a GF element corresponding to the message value; and producing a check node output message by using the produced configuration set and an extra output message value. According to the embodiment of the present invention, the amount of time required for decoding can be reduced. COPYRIGHT KIPO 2016 (901) Select message values having the maximal reliability corresponding to each GF element and the pertinent GF element by using the message value corresponding to the configuration set (903) Obtain deviation index (905) Select a value having high reliability (907) Comparing (909) Calculate intermediate inspection ...

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Номер записи: 10
17-05-2017 дата публикации

DECODING METHOD IN WIRELESS COMMUNICATIONS SYSTEM AND DEVICE THEREOF

Номер: KR1020170054046A
Автор: JANG, MIN, PARK, WOO MYOUNG, KIM, JAE YOEL, AHN, SEOK KI, LIM, CHI WOO
Принадлежит:

A decoding method using a polar code according to an embodiment of the present disclosure comprises: a step of determining a first function for decoding input bits, and a second function which is not subordinate to a log likelihood ratio (LLR) value of a previous input bit by the first function; and a step of decoding the input bits in parallel by using the first and second functions. Moreover, the decoding method comprises: a step of determining an internal frozen bit by using one or more input frozen bits having a predetermined value in a predetermined position among the input bits; and a step of sequentially determining the LLR value with respect to bits of the layer from upper layers among N number of layers. COPYRIGHT KIPO 2017 ...

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Номер записи: 11
04-01-2023 дата публикации

통신 시스템에서 신호 송수신 방법 및 장치

Номер: KR102484560B1
Автор: 임치우, 김재열, 박우명, 안석기, 장민
Принадлежит: 삼성전자주식회사

... 본 개시는 LTE와 같은 4G 통신 시스템 이후 보다 높은 데이터 전송률을 지원하기 위한 5G 또는 pre-5G 통신 시스템에 관련된 것이다. 본 개시의 실시 예에 따라 저밀도 패리티 검사 부호를 사용하는 통신 시스템에서 송신단이 신호를 송신하는 방법에 있어서, 수신단으로부터 상기 수신단의 배터리 상태 및 버퍼 상태를 기반으로 결정된 상기 저밀도 패티리 검사 부호의 부호율에 대한 변경 요청을 수신하는 과정과, 상기 변경 요청에 상응하는 상기 부호율의 임시 모부호율을 결정하는 과정과, 상기 임시 모부호율에 대한 정보를 상기 수신단에게 송신하는 과정을 포함한다.

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Номер записи: 12
25-02-2016 дата публикации

METHOD AND APPARATUS FOR PERFORMING DECODING WITH LOW COMPLEXITY IN WIRELESS COMMUNICATION SYSTEM

Номер: WO2016028094A1
Автор: SAGONG, Min, PARK, Woo-Myoung, AHN, Seok-Ki, LIM, Chi-Woo, HONG, Sung-Nam
Принадлежит:

Disclosed is a 5G or pre-5G communication system to be provided in order to support a higher data transmission rate than a beyond 4G communication system such as LTE. The present invention relates to a method and an apparatus for performing decoding with low complexity in a wireless communication system, and a decoding method of a terminal in a wireless communication system may comprise the steps of: determining a first characteristic value which is indicative of a statistical characteristic of an interference signal on the basis of a received signal of a base station; determining a second characteristic value which is indicative of a statistical characteristic of an interference signal on the basis of data received from the base station; and decoding the data according to a decoding scheme which corresponds to a difference between the first characteristic value and the second characteristic value.

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Номер записи: 13
25-02-2016 дата публикации

METHOD AND DEVICE FOR SHORTENING AND PUNCTURING NON-BINARY CODE

Номер: WO2016027981A1
Автор: AHN, Seok-Ki, PARK, Woo-Myoung, SAGONG, Min, LIM, Chi-Woo, HONG, Sung-Nam
Принадлежит:

The present disclosure relates to a 5G or pre-5G communication system to be provided after a 4G communication system such as LTE for supporting a higher data transfer rate. The present invention relates to a method and a device for efficiently shortening and puncturing a non-binary LDPC code, the method for a transmitter shortening and puncturing a non-binary code being capable of supporting various modulation methods by using a single non-binary code, and the method comprising the steps of: shortening, on the basis of a modulation method, at least one information bit in at least one information symbol constituting the non-binary code; encoding the at least one information symbol having a shortened information bit; and puncturing, on the basis of the modulation method, at least one parity code in at least one parity symbol obtained through the encoding step.

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Номер записи: 14
22-07-2015 дата публикации

DEVICE AND METHOD FOR ADAPTIVELY SELECTING CHANNEL CODE BASED ON NON-GAUSSIAN CHARACTERISTICS IN WIRELESS COMMUNICATION SYSTEM

Номер: KR1020150084308A
Автор: PARK, WOO MYOUNG, KIM, SANG MIN, LIM, CHI WOO
Принадлежит:

The present invention relates to adaptively selecting a channel code based on non-gaussian characteristics in a wireless communication system. An operation method of a transmission end in a wireless system comprises: a process to use a first channel code to encrypt transmission data if the non-gaussian characteristics of the channel are within range 1, and a process to use a second channel code to encrypt transmission data if the non-gaussian characteristics of the channel are within range 2. In addition, the present invention includes other embodiments aside from the stated embodiment. COPYRIGHT KIPO 2015 (1012-1) First binary encoder (1012-2) Second binary encoder (1012-L) L-th binary encoder (1016) Internal encoder (1018) Modulator (1022) Demodulator (1024) Internal decoder (1026) De-interleaver (1028-1) First binary decoder (1028-2) Second binary decoder (1028-L) L-th binary decoder (1114,1030) Interleaver (AA) Channel ...

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Номер записи: 15
22-12-2020 дата публикации

LDPC APPARATUS AND METHOD FOR CORRECTING ERROR IN MOBILE COMMUNICATION SYSTEM USING NON-BINARY LOW-DENSITY PARITY-CHECK CODES

Номер: KR102194136B1
Автор: 김상민, 박우명, 임치우
Принадлежит: 삼성전자주식회사

... 본 발명의 실시 예는 반복 회수 증가에 따라서 unsatisfied check equation 증가할 경우에 해당 체크 노드의 입력 메시지의 사이즈(nm)를 조절한다. 본 발명의 또 다른 실시 예는 메시지를 선택하는 방법에 대한 것이고, 수신기의 SNR(Signal to Noise Ratio), MCS(Modulation and Coding Scheme) 파라미터를 이용하여 변환된 메시지 벡터 값의 데이타 분포 특성을 파악하여 각각 메시지 벡터에서 임계값 보다 낮은 값을 갖는 메시지 값을 선택한다.

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Номер записи: 16
22-10-2015 дата публикации

METHOD AND APPARATUS FOR GENERATING CODEWORD, AND METHOD AND APPARATUS FOR RECOVERING CODEWORD

Номер: WO2015160205A1
Автор: PARK, Woomyoung, KIM, Sangmin, LIM, Chiwoo
Принадлежит:

Disclosed are a method and an apparatus for generating a codeword, and a method and an apparatus for recovering a codeword. An encoder calculates the number of punctured symbol nodes among symbol nodes included in a codeword, punctures symbol nodes located at an even or odd number position among the symbol nodes included in the codeword, calculates the number of symbol nodes which need to be additionally punctured on the basis of the number of the symbol nodes to be punctured, divides the symbol nodes, which need to be additionally punctured, into one or more punctured node groups on the basis of the number of symbol nodes which need to be additionally punctured, determines the locations on the codeword where the one or more punctured node groups are to be disposed, and punctures the symbol nodes included in the codeword which become part of the punctured node groups according to the determined locations. A transmission unit transmits the codeword.

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Номер записи: 17
24-03-2016 дата публикации

METHOD AND APPARATUS FOR SCHEDULING IN WIRELESS COMMUNICATION SYSTEM

Номер: KR1020160032415A
Автор: SA, GONG MIN, SEOL, JI YUN, PARK, WOO MYONG, AHN, SEOK KI, LIM, CHI WOO, HONG, SUNG NAM
Принадлежит:

The present invention relates to FQAM access method and apparatus based on an NOMA system, and may enhance a transmission rate of a user in a boundary of a cell. According to an embodiment of the present invention, a method for scheduling in a wireless communication system comprises the steps of: receiving a signal-to-interference-noise ratio (SINR) and an alpha value from a terminal; determining a Gaussian SINR based on the SINR and the alpha value; user-pairing based on the Gaussian SINR; and calculating again an MCS based on a recalculated alpha value. COPYRIGHT KIPO 2016 (601) Receiving channel information (603) Calculating a Gaussian SINR (605) Performing a user pairing (607) Allocating a power (609) Calculating an alpha value (611) Calculating again an MCS (613) Re-calculated MCS value of a remote user corresponds to an FQAM? (615) Transmitting an Indicator (AA) Start (BB) End (CC) Yes (DD) No ...

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Номер записи: 18
29-03-2016 дата публикации

APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING SIGNAL IN COMMUNICATION SYSTEM SUPPORTING BIT INTERLEAVED CODED MODULATION WITH ITERATIVE DECODING SCHEME

Номер: KR1020160034031A
Автор: HA, JEONG SEOK, PARK, WOO MYOUNG, LEE, SANG HA, LEE, JAE YOON
Принадлежит:

The present invention relates to a signal transmitting method in a signal transmitting apparatus of a communication system supporting a bit interleaved coded modulation with iterative decoding (BICM-ID) scheme. The signal transmitting method comprises the steps of: generating an external code by executing an external coding operation based on an external coding scheme preset for an input message; generating an interleaved signal by executing an interleaved operation corresponding to the interleaved scheme based on an generation matrix preset for the external code; generating an internal code by executing an internal coding operation based on an internal coding scheme preset for the interleaved signal; generating a modified signal by executing a modification operation based on a modification scheme preset for the internal code; and transmitting the modified signal, wherein the generation matrix is generated by applying at least one from a column permutation rule and a row permutation rule ...

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Номер записи: 19
11-01-2021 дата публикации

APPARATUS AND METHOD FOR DEMODULATING OF HYBRID MODULATION SYMBOL IN A WIRELESS COMMUNICATION SYSTEM USING HYBRID MODULATION SCHEME

Номер: KR102200811B1
Автор: 사공민, 박우명, 안석기, 임치우, 홍성남
Принадлежит: 삼성전자 주식회사

... 본 발명은 무선 통신 시스템에서 변조 장치 및 방법에 관한 것으로, 특히 복합 변조 방식을 사용하는 무선 통신 시스템에서 복합 변조 심볼의 복조 장치 및 방법에 관한 것이다. 본 발명의 일 실시 예에 따른 장치는, 복합 변조 방식을 사용하는 무선 통신 시스템에서 수신된 변조 심볼을 복조하기 위한 장치로, 제어 채널을 통해 수신된 제어 정보로부터 상기 복합 변조 방식의 변형 정보를 획득하는 제어 채널 수신부; 상기 제어 채널 수신부로부터 제공된 복합 변조 방식의 변형 정보를 이용하여 복조 시에 사용할 성상도를 재구성하는 성상도 재구성부; 및 상기 복합 변조 방식의 심볼을 수신하여 상기 복합 변조 심볼을 복조하며, 상기 성상도 재구성부로부터 재구성된 성상도 정보를 수신할 시 입력되는 변형된 복합 변조 심볼을 상기 재구성된 성상도 정보에 근거하여 복조하는 복조부;를 포함할 수 있다.

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Номер записи: 20
17-03-2016 дата публикации

APPARATUS AND METHOD FOR MODULATION/DEMODULATION FOR TRANSMITTING AND RECEIVING SIGNAL IN WIRELESS COMMUNICATION SYSTEM

Номер: WO2016039562A1
Автор: HONG, Sung-Nam, PARK, Woo-Myoung, SAGONG, Min, AHN, Seok-Ki, LIM, Chi-Woo
Принадлежит:

The present disclosure relates to a 5G or pre-5G communication system to be provided for supporting a higher data transmission rate beyond 4G communication systems such as LTE. A method for modulation in a transmitter for transmitting a signal in a wireless communication system according to an embodiment of the present invention comprises: a step for determining a modulation scheme; a step for, if the determined modulation scheme corresponds to a specific modulation scheme, converting encoded information bits to quadrature amplitude modulation (QAM) symbols in accordance with a predetermined QAM modulation order, selecting a sequence corresponding to an element of an integer vector in a predetermined sequence set, repeating the converted QAM symbols for a predetermined sequence length, and outputting signals by multiplying the repeated QAM symbols and the selected sequence; and a step for transmitting the outputted signals to a receiver.

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Номер записи: 21
24-03-2016 дата публикации

DECODING METHOD AND APPARATUS IN SYSTEM USING SEQUENTIALLY CONNECTED BINARY CODES

Номер: WO2016043509A1
Автор: PARK, Woomyoung, KIM, Sangmin, LIM, Chiwoo
Принадлежит:

The present disclosure relates to a 5G or pre-5G communication system to be provided to support a data transmission rate higher than that of a 4G communication system, such as LTE, and subsequent communication systems. An apparatus according to one embodiment of the present invention can comprise: a first grouping unit for performing repeated decoding by using an outer decoder and an inner decoder, and grouping, in correspondence to a decoding order, a bit stream, which is received from the outer decoder, from a receiver of a system using binary irregular repeat partial accumulate codes to the inner decoder device; an LLR symbol selection unit for calculating indices of grouped bits having the maximum probability value among the grouped bits, and selecting and outputting a predetermined number of grouped bit LLR values by using the indices of the grouped bits having the maximum probability value; an LLR symbol conversion unit for converting the grouped bit LLR values outputted from the ...

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Номер записи: 22
18-08-2022 дата публикации

무선 통신 시스템에서 복호화 방법 및 장치

Номер: KR102433645B1
Автор: 장민, 박우명, 김재열, 안석기, 임치우
Принадлежит: 삼성전자주식회사

... 본 개시의 실시예에 의한 폴라 부호를 이용한 복호 방법은, 입력 비트들의 복호를 위한 제1 함수와, 상기 제1 함수에 의한 이전 입력 비트의 로그 우도율(Log Likelihood Ratio: LLR) 값에 종속하지 않은 제2 함수를 결정하는 과정과, 상기 제1 함수 및 상기 제2 함수를 이용하여 상기 입력 비트들을 병렬적으로 복호하는 과정을 포함한다. 또한, 상기 입력 비트들 중 소정 위치의 소정 값을 갖는 적어도 하나의 입력 프로즌 비트를 이용하여 내부 프로즌 비트를 결정하는 과정과, 상기 N개의 레이어들 중 상위 레이어들부터 순차적으로 상기 레이어의 비트들에 대한 LLR 값을 결정하는 과정을 포함한다.

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Номер записи: 23
03-03-2016 дата публикации

METHOD AND DEVICE FOR SHORTENING AND PUNCTURING NON-BINARY CODE

Номер: KR1020160023393A
Автор: AHN, SEOK KI, PARK, WOO MYOUNG, SAGONG, MIN, LIM, CHI WOO, HONG, SUNG NAM
Принадлежит:

The present invention relates to a method and a device for effectively shortening and puncturing a non-binary low density parity check (LDPC) code. A method of a transmitting end for shortening and puncturing a non-binary code comprises the following steps: shortening at least one information bit based on a modulation scheme in at least one information symbol constituting a non-binary code; encoding the information symbol having a shortened information bit; and puncturing at least one parity code based on the modulation scheme in at least one parity symbol obtained through the encoding. Accordingly, by using a single non-binary code, various modulation schemes may be supported. COPYRIGHT KIPO 2016 (101) Transceiving unit (103) Information bit reduction performing unit (105) Encoding unit (107) Parity bit punching performing unit (109) Modulating unit (111) Control unit (113) Storing unit ...

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Номер записи: 24
19-02-2021 дата публикации

/ MODULATION/DEMODULATION APPARATUS AND METHOD FOR TRANCEIVING SIGNAL IN A WIRELESS COMMUNICATION SYSTEM

Номер: KR102217030B1
Автор: 홍성남, 박우명, 사공민, 안석기, 임치우
Принадлежит: 삼성전자주식회사

... 본 발명은 무선 통신 시스템에서 신호 송수신을 위해 간섭 신호의 분포가 비 가우시안(Gaussian) 분포를 가지도록 하는 변조/복조 장치 및 방법에 관한 것이다. 본 발명의 실시 예에 따른 무선 통신 시스템에서 신호를 송신하는 송신기에서 변조 방법은, 변조 방식을 결정하는 과정과, 상기 결정된 변조 방식이 특정 변조 방식에 해당하는 경우, 인코딩된 정보 비트를 미리 정해진 QAM(Quadrature Amplitude Modulation) 변조 차수에 따라 QAM 심볼로 변환하고, 미리 정해진 시퀀스 세트에서 정수 벡터의 엘리먼트에 해당하는 시퀀스를 선택하고, 미리 정해진 시퀀스 길이만큼 상기 변환한 QAM 심볼을 반복하며, 상기 반복한 QAM 심볼을 상기 선택한 시퀀스와 곱하여 신호를 출력하는 과정과, 상기 출력된 신호를 수신기로 전송하는 과정을 포함한다.

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Номер записи: 25
24-03-2016 дата публикации

SCHEDULING METHOD AND APPARATUS IN WIRELESS COMMUNICATION SYSTEM

Номер: WO2016043519A1
Автор: SAGONG, Min, SEOL, Ji-Yun, PARK, Woo-Myong, AHN, Seok-Ki, LIM, Chi-Woo, HONG, Sung-Nam
Принадлежит:

The present disclosure relates to a 5G or pre-5G communication system to be provided for supporting a higher data transfer rate beyond a 4G communication system such as LTE. The present invention relates to a NOMA system based FQAM connection method and an apparatus therefor. The present invention can increase the user transfer rate at a cell boundary. The scheduling method in a wireless communication system, according to an embodiment of the present invention, comprises a step of receiving a signal-to-interference-noise ratio (SINR) value and an alpha value from a terminal; a step of determining, on the basis of the SINR value and the alpha value, a Gaussian SINR value; a step of pairing users on the basis of the Gaussian SINR value; and a step of re-computing MCS on the basis of a re-computed alpha value.

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Номер записи: 26
28-06-2016 дата публикации

TECHNIQUE OF SENDING OR RECEIVING MESSAGE USING CHANNEL COMBINING AND SPLITTING

Номер: KR1020160074076A
Автор: PARK, WOO MYOUNG, AHN, SEOK KI, LIM, CHI WOO
Принадлежит:

The present invention relates to a technique of sending a message using a channel combining/splitting transmission technique, which is a technique of combining part or the whole of a transmission signal through a second channel to a transmission signal through a first channel in a wireless communication system including at least two channels. The technique includes the operations of: dividing the message into a first part to be transmitted through the first channel, which is a deteriorated channel, and a second part to be transmitted through the second channel, which is an enhanced channel; generating a first modulated signal by performing channel encoding and frequency quadrature amplitude modulation (FQAM) to the first part and a second modulated signal by performing channel encoding and quadrature amplitude modulation (QAM) to the second part; generating a first transmission signal by combining part or the whole of the second modulated signal to the first modulated signal and a second ...

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Номер записи: 27
03-02-2023 дата публикации

언어 모델을 이용한 데이터 생성 방법, 컴퓨터 장치, 및 컴퓨터 프로그램

Номер: KR20230016794A
Автор: 유강민, 박동주, 강재욱, 이상우, 박우명
Принадлежит:

... 언어 모델을 이용한 데이터 생성 방법, 컴퓨터 장치, 및 컴퓨터 프로그램이 개시된다. 언어 모델을 이용한 데이터 생성 방법은, 원본 데이터를 이용하여 언어 모델의 입력문이 되는 프롬프트(prompt)를 구성하는 단계; 및 상기 프롬프트를 상기 언어 모델에 입력하여 상기 언어 모델로부터 신규 데이터와 상기 신규 데이터에 대한 레이블 정보를 생성하는 단계를 포함한다.

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Номер записи: 28
23-12-2020 дата публикации

APPARATUS AND METHOD FOR SCHEDULING IN WIRELESS COMMUNICATION SYSTEM

Номер: KR102194490B1
Автор: 사공민, 설지윤, 박우명, 안석기, 임치우, 홍성남
Принадлежит: 삼성전자주식회사

NOMA 시스템 기반의 FQAM 접속 방법 및 장치를 개시한다. 무선 통신 시스템에서 기지국에서의 스케줄링 방법은, 셀 내의 각 단말로부터 SINR(signal-to-interference-noise ratio)값과 간섭 특성을 나타내는 알파값을 수신하는 과정; 상기 SINR값 및 상기 알파값을 기반으로 하여 가우시안 SINR 값을 결정하는 과정; 상기 가우시안 SINR 값을 기반으로 하여 사용자 페어링을 수행하는 과정; 상기 SINR값 및 상기 알파값을 기반으로 하여, 상기 사용자 페어링을 통해 결정된 단말들 중 근거리의 단말을 위한 전력값 P1과 원거리의 단말을 위한 전력값 P2를 결정하는 과정; 상기 SINR값 및 상기 알파값과 상기 P1, P2를 기반으로 하여 비-가우시안 간섭제거를 위한 알파값을 산출하는 과정; 상기 산출된 알파값을 기반으로 하여 상기 근거리의 단말과 상기 원거리의 단말을 위한 MCS(modulation and coding scheme)를 재산정하는 과정; 상기 원거리의 단말을 위한 재산정된 MCS가 FQAM(Hybrid FSK and QAM Modulation)에 해당할 경우, 상기 산출된 알파값 및 상기 MCS를 포함하는 지시자를 상기 근거리의 단말 및 상기 원거리의 단말에게 전송하는 과정을 포함한다.

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Номер записи: 29
04-02-2021 дата публикации

LDPC DECODING APPARATUS AND METHOD IN MOBILE COMMUNICATION SYSTEM USING NON-BINARY LOW-DENSITY PARITY-CHECK CODES

Номер: KR102212163B1
Автор: 김상민, 박우명, 안석기, 임치우
Принадлежит: 삼성전자주식회사

... 본 발명의 실시 예에 따른 복호 방법은 비이진 LDPC 부호를 이용한 이동 통신 시스템에서의 복호 방법에 있어서, 입력 벡터 메시지의 각 컬럼과 로우에서 신뢰도가 가장 높은 메시지 값을 선택하는 과정; 상기 각 컬럼 별 선택된 메시지 값 및 상기 메시지 값에 해당하는 GF 엘리먼트를 이용하여 Configuration set을 생성하는 과정; 및 상기 생성된 Configuration set 및 여분 출력 메시지 값을 이용하여 검사 노드 출력 메시지를 생성하는 과정을 포함한다. 본 발명의 실시 예에 따라 복호 시간을 감소시킬 수 있다.

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Номер записи: 30
09-12-2015 дата публикации

METHOD AND APPARATUS FOR DECODING NON-BINARY LDPC CODE IN COMMUNICATIONS SYSTEM

Номер: KR1020150137430A
Автор: PARK, WOO MYOUNG, YANG, KYEONG CHEOL, KIM, SANG MIN, SAGONG, MIN, AHN, SEOK KI, LIM, CHI WOO, HONG, SUNG NAM
Принадлежит:

The present invention relates to a method and apparatus for decoding a non-binary low density parity check (LDPC) code, which can reduce complexity and a decoding delay in a communications system. According to an embodiment of the present invention, the method comprises the following steps: selecting the predetermined number of symbol messages among symbol messages received from a channel; performing a variable node update on the selected symbol messages; performing a check node update on the symbol messages which have completed the variable node update; and performing decoding based on a result of the variable node update and the check node update. The step of performing the check node update includes a step of generating an intermediate message by using the symbol messages selected in descending order of the reliability on the symbol messages which have completed the variable node update, and generating an output message by edge between a variable node and a check node by using the intermediate ...

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Номер записи: 31
02-03-2016 дата публикации

METHOD AND APPARATUS FOR PERFORMING DECODING WITH LOW COMPLEXITY IN WIRELESS COMMUNICATIONS SYSTEM

Номер: KR1020160022625A
Автор: SAGONG, MIN, PARK, WOO MYOUNG, AHN, SEOK KI, LIM, CHI WOO, HONG, SUNG NAM
Принадлежит:

The present invention relates to a method and an apparatus for performing decoding with low complexity in a wireless communications system. A decoding method of a terminal in a wireless communications system may comprise the following processes of: determining a first characteristic value which is indicative of a statistical characteristic of an interference signal on the basis of a received signal of a base station; determining a second characteristic value which is indicative of a statistical characteristic of an interference signal on the basis of data received from the base station; and decoding a received data signal according to a decoding scheme which corresponds to a difference between the first characteristic value and the second characteristic value. COPYRIGHT KIPO 2016 (101) Terminal (103) Base station (111) Transmit a pilot signal (113) Calculate a first alpha value for calculating CQI (115) Calculate CQI based on the calculated first alpha value (117) Report the CQI and/or ...

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Номер записи: 32
12-10-2016 дата публикации

METHOD AND DEVICE FOR TRANSMITTING DOWNLINK INFORMATION IN WIRELESS COMMUNICATION SYSTEM

Номер: KR1020160118992A
Автор: LIM, CHI WOO, PARK, WOO MYOUNG
Принадлежит:

The present disclosure relates to a 5G or pre-5G communication system which is to be provided to support a higher data transfer rate beyond a 4G communication system such as an LTE. A method for transmitting a downlink signal by a base station in a wireless communication system supporting non-orthogonal multiple access (NOMA) comprises the steps of: selecting a pair of terminals including one short-distance terminal and at least one long-distance terminal which will share an identical downlink transmission resource; generating a superimposed signal in which a signal for the short-distance terminal and a signal for the long-distance terminal are superimposed on one another; generating information necessary for cancelling the signal of the long-distance terminal from the superimposed signal; transmitting the generated information necessary for cancelling the signal of the long-distance terminal to the short-distance terminal; and transmitting the generated superimposed signal to the pair ...

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Номер записи: 33
23-03-2016 дата публикации

METHOD AND APPARATUS FOR DECODING IN SYSTEM USING BINARY SERIAL CONCATENATED CODE

Номер: KR1020160031781A
Автор: PARK, WOO MYOUNG, KIM, SANG MIN, LIM, CHI WOO
Принадлежит:

The present invention relates to a method and an apparatus for decoding in a system using a binary serial concatenated code, and particularly to a method and an apparatus for decoding to reduce complexity in a system using a binary serial concatenated code. The apparatus is the internal decoder in a receiver of the system for performing a repetitive decoding process using an external decoder and an internal decoder and using a binary irregular repetition partial accumulate code. The apparatus comprises: a first grouping unit for grouping bit sequence received from the external decoder according to a decoding order; an LLR symbol selection unit for calculating an index of grouped bits having a maximum probability value of the grouped bits, selecting the predetermined number of grouped bit LLR values by using the index of the grouped bits having the maximum probability value and outputting the selected grouped bit LLR values; an LLR symbol converting unit for converting the grouped bit LLR ...

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Номер записи: 34
08-02-2021 дата публикации

LDPC METHOD APPARATUS AND ALGORITHM FOR Decoding Nonbinary LDPC Codes

Номер: KR102213624B1
Автор: 안석기, 양경철, 김상민, 박우명, 사공민, 임치우, 홍성남
Принадлежит: 삼성전자주식회사

... 본 개시는 무선 채널의 수신 신호 입력 받아서 검사 노드에게 입력 메시지를 전달하는 적어도 하나의 변수 노드 및 상기 입력 메시지를 검사하여 출력 메시지를 출력하는 상기 검사 노드를 구현하는 단말의 비이진 LDPC(Low Density Parity Check) 부호의 복호화 방법에 있어서, 적어도 하나의 상기 입력 메시지를 전달 받는 동작; 적어도 하나의 상기 입력 메시지를 이용하여 임시 벡터를 생성하는 동작; 상기 임시 벡터를 검사하여 우세한 값을 갖는 요소를 찾는 동작; 상기 우세한 값의 요소를 이용하여 검사 대상이 되는 배열 셋(configuration set)을 생성하는 동작; 및 상기 생성된 배열 셋에 대한 비교를 통해 상기 출력 메시지를 생성하는 동작을 포함하는 비이진 LDPC 부호의 복호화 방법을 제공한다.

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Номер записи: 35
18-11-2015 дата публикации

APPARATUS AND METHOD FOR DEMODULATING HYBRID MODULATION SYMBOL IN WIRELESS COMMUNICATIONS SYSTEM USING HYBRID MODULATION SCHEME

Номер: KR1020150128270A
Автор: SA, GONG MIN, PARK, WOO MYOUNG, AHN, SEOK KI, LIM, CHI WOO, HONG, SUNG NAM
Принадлежит:

The present invention relates to an apparatus and method for modulating in a wireless communications system and, more particularly, to an apparatus and method for demodulating a hybrid modulation symbol in a wireless communications system using a hybrid modulation scheme. According to an embodiment of the present invention, the apparatus for demodulating a modulation symbol received from the wireless communications system using the hybrid modulation scheme, comprises: a control channel reception unit for obtaining modification information of the hybrid modulation scheme from control information received through a control channel; a constellation reconfiguring unit for reconfiguring a constellation to be used during the demodulation by using the modification information of the hybrid modulation scheme provided from the control channel reception unit; and a demodulation unit for receiving a symbol of the hybrid modulation scheme to demodulate the hybrid modulation symbol, and demodulating ...

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Номер записи: 36
18-07-2017 дата публикации

APPARATUS AND METHOD TO TRANSMIT/RECEIVE SIGNAL IN COMMUNICATION SYSTEM SUPPORTING RATE COMPATIBLE-LOW DENSITY PARITY CHECK CODE

Номер: KR1020170083432A
Автор: JANG, MIN, AHN, SEOK KI, LIM, CHI WOO, KIM, JAE YOEL, PARK, WOO MYOUNG
Принадлежит:

According to one embodiment of the present invention, disclosed are an apparatus and a method to transmit/receive a signal in a communication system supporting a rate compatible-low density parity check (RC-LDPC) code, capable of improving performance with respect to various code rates. The method comprises the following processes of: encoding information bits based on a first parity check matrix and a first code rate to generate a codeword; processing the codeword to generate a transmission signal; and transmitting the transmission signal. The first parity check matrix includes: a second parity check matrix to support a second code rate among the code rates supported in the communication system; a third parity check matrix to support a third code rate among the code rates supported in the communication system; a sub matrix used for joining the second and third parity check matrixes; and a fourth parity check matrix to be shared with the second and third parity check matrixes, and the sub ...

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Номер записи: 37
20-07-2017 дата публикации

METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING SIGNAL IN COMMUNICATION SYSTEM

Номер: KR1020170084548A
Автор: LIM, CHI WOO, KIM, JAE YOEL, PARK, WOO MYOUNG, AHN, SEOK KI, JANG, MIN
Принадлежит:

The present disclosure relates to a 5G or pre-5G communication system for supporting a higher data rate after a 4G communication system like LTE. A method for enabling a transmission terminal to transmit a signal in a communication system using low density parity check code according to an embodiment of the present disclosure includes the steps of: receiving a change request for a code rate of the low density parity check code determined based on a battery state and a buffer state of a receiving terminal, from the receiving terminal; determining a temporary parent code rate of the code rate corresponding to the change request; and transmitting information about the temporary parent code rate to the receiving terminal. Accordingly, the present invention can variably operate a parent code rate used for transmitting and receiving the signal in the communication system. COPYRIGHT KIPO 2017 (100) Receiving terminal (102) Transmission terminal (104) Determining whether a parent code rate is changed ...

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Номер записи: 38
18-05-2017 дата публикации

DECODING METHOD AND APPARATUS IN WIRELESS COMMUNICATION SYSTEM

Номер: WO2017082626A1
Автор: JANG, Min, PARK, Woo-Myoung, KIM, Jae-Yoel, AHN, Seok-Ki, LIM, Chi-Woo
Принадлежит:

The present disclosure relates to a 5G or pre-5G communication system for supporting a higher data transmission rate beyond the 4G communication system such as LTE. A decoding method using a polar code according to an embodiment of the present disclosure comprises the steps of: determining a first function for decoding input bits and a second function, which is independent from a log likelihood ratio (LLR) value of a previous input bit by the first function; and decoding the input bits in parallel using the first function and the second function. Also, the method comprises the steps of: determining an internal frozen bit using at least one input frozen bit which has a predetermined value of a predetermined position from among the input bits; and determining LLR values for layer bits sequentially from the higher layers of N layers.

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Номер записи: 39
08-02-2017 дата публикации

METHOD AND APPARATUS FOR CHANNEL ENCODING AND DECODING IN WIRELESS COMMUNICATION SYSTEM

Номер: KR1020170014610A
Автор: KIM, JAE YOEL, AHN, SEOK KI, LIM, CHI WOO, JANG, MIN, KIM, KWANG TAIK, PARK, WOO MYOUNG
Принадлежит:

The present disclosure relates to a 5G or pre-5G communication system that is to be provided for a higher data transmission rate beyond a 4G communication system such as LTE. A method for channel encoding in a wireless communication system according to the present disclosure includes: a step in which first and second parity sets are generated based on information bits; a step in which the number of additional parity bits is determined based on the number of the information bits and a required code rate; a step in which the same number of the additional parity bits are generated by the information bits being used; and a step in which a codeword is generated that includes the information bits, the first parity set, the second parity set, and the generated additional parity bits. COPYRIGHT KIPO 2017 (401) Encoding unit 1 (403) Interleaver (405) Encoding unit 2 (407) Additional parity bit generating unit (411) Information bits (413) Parity set 1 (415) Parity set 2 (417) Additional parity bits ...

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Номер записи: 40
22-03-2016 дата публикации

MODULATION/DEMODULATION DEVICE AND METHOD FOR TRANSCEIVING SIGNAL IN WIRELESS COMMUNICATION SYSTEM

Номер: KR1020160031278A
Автор: HONG, SUNG NAM, PARK, WOO MYOUNG, SAGONG, MIN, AHN, SEOK KI, LIM, CHI WOO
Принадлежит:

The present invention relates to a modulation/demodulation device which makes the distribution of interference signals to be non-Gaussian distribution for signal transmission and reception in a wireless communication system, and a modulation/demodulation method. According to an embodiment of the present invention, a modulation method in a transmitter which transmits signals in a wireless communication system includes the processes of: determining a modulation scheme; converting encoded data bits into a quadrature amplitude modulation (QAM) symbol according to a predefined QAM degree if the determined modulation scheme is a specific modulation scheme, selecting a sequence corresponding to an element of an integer vector in a predefined sequence set, repeating the converted QAM symbol as long as the predefined sequence length, and outputting a signal by multiplying the repeated QAM symbols and the selected sequence; and transmitting the outputted signal to a receiver. COPYRIGHT KIPO 2016 ...

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Номер записи: 41
22-12-2016 дата публикации

ENCODING METHOD AND DEVICE USING RATE-COMPATIBLE, LOW-DENSITY PARITY-CHECK CODE IN COMMUNICATION SYSTEM

Номер: WO2016204578A1
Автор: JANG, Min, AHN, Seok-Ki, LIM, Chi-Woo, KIM, Jae-Yoel, PARK, Woo-Myoung
Принадлежит:

Disclosed is a 5G or pre-5G communication system for supporting a data transmission rate higher than that of a 4G communication system such as LTE and, particularly, the present invention relates to an RC-LDPC encoding method and device. Disclosed in one embodiment is the encoding method using LDPC in a communication system, comprising the steps of: LDPC encoding information bits by a first encoding rate; and performing a concatenated single parity check (SPC) encoding for the encoded bits by at least one second encoding rate lower than the first encoding rate.

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Номер записи: 42