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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 57. Отображено 57.
20-08-2015 дата публикации

TECHNIQUE OF DIRECT COMMUNICATION BETWEEN TERMINALS IN MULTI-FREQUENCY NETWORK

Номер: WO2015122556A1
Автор: BAN, Tae Won, JUNG, Bang Chul
Принадлежит:

A frequency band setting apparatus for setting a frequency band for direct communication between terminals and a communication method for performing communication using the set frequency band are disclosed. The disclosed frequency band setting apparatus determines, as an idle frequency band, a frequency band that is not used by a base station to which a terminal is connected, among the frequency bands allocated to a wireless network, and determines, as a direct communication frequency band, a frequency band that can be used by two terminals, among idle frequency bands. The two terminals can transmit data using the direct communication frequency band.

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Номер записи: 1
07-07-2011 дата публикации

MAGNETIC INDUCTION COMMUNICATION SYSTEM FOR ON-LINE ELECTRIC VEHICLE AND DEMODULATION APPARATUS AND DEMODULATION METHOD OF MAGNETIC INDUCTION COMMUNICATION SYSTEM

Номер: KR2011081478A2
Автор: CHO, Dong Ho, JUNG, Bang Chul, CHANG, Woo Hyuk, LEE, Jong Min, KIM, Jin Kyu, EEM, Chang Kyoung, KIM, Yeong Min, CHUN, Hyun Woo, PARK, Mi Hyun, YOO, Sang Jo, SHIN, Young Su, LIM, Seung Ok, WON, Yun Jae, KIM, Sun Hee, MOON, Yeon Kug, LIM, Yong Seok
Принадлежит:

A magnetic induction communication system for an on-line electric vehicle according to the present invention comprises: a first digital signal processing section that performs digital signal processing on packet data which is generated in response to a magnetic induction communication protocol; a digital analog conversion section that converts a digital signal, which is processed by the digital signal processing section, into an analog signal; a first filtering section that eliminates a high frequency component from the analog signal which is obtained by the conversion of the digital analog conversion section; a first amplification section that amplifies the analog signal which is filtered by the first filtering section; a magnetic field transmission antenna section that generates a magnetic field on the basis of the analog signal which is amplified by the first amplification section. According to the invention, by using a magnetic induction communication technology capable of wireless ...

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Номер записи: 2
10-09-2018 дата публикации

IN-BAND FULL-DUPLEX BASE STATION FOR DETERMINING BEAMFORMING ORDER OF TERMINALS OPERATED BY HALF-DUPLEX METHOD

Номер: KR101897112B1
Автор: JUNG, BANG CHUL
Принадлежит: THE INDUSTRY & ACADEMIC COOPERATION IN CHUNGNAM NATIONAL UNIVERSITY (IAC)

Disclosed is a communication system for determining a beamforming order by comparing the number of antennas of transmitting terminals with the number of antennas of receiving terminals in a communication system in which a base station is operated in a full-duplex method, and terminals are operated in a half-duplex method. According to the communication system, terminals having the smaller number of antennas primarily perform beamforming, and terminal having the larger number of antennas perform beamforming for nulling interference, thereby improving the efficiency of the entire communication system. COPYRIGHT KIPO 2018 (410) Comparison part (420) Transceiving mode determination part (430) Reference signal transmission part (440) Data receiving part (450) Effective channel information receiving part (460) Data transmission part ...

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Номер записи: 3
01-07-2015 дата публикации

OPPORTUNISTIC DOWNLINK INTERFERENCE ALIGNMENT

Номер: KR1020150073739A
Автор: JUNG, BANG CHUL, SHIN, WON YONG, YANG, HYUN JONG, PARK, JAE JOON, LIM, KWANG JAE, CHA, JAE SUN, KIM, EUN KYUNG, LEE, HYUN, CHANG, SUNG CHEOL
Принадлежит:

Disclosed is a communication system for transmitting data by using an interference alignment scheme. The communication system comprises a terminal and a base station. The base station transmits data by using a transmission beamforming matrix which has a minimized intra-cell interference, and the disclosed terminal receives the data by using a reception beamforming matrix which has a minimized inter-cell interference. The base station transmits information on a reference beamforming matrix to the terminal, and transmits a pilot signal to the terminal by using the reference beamforming matrix. In addition, the terminal is capable of estimating an effective channel by using the reference beamforming matrix, and calculating the strength of an interference signal from an interference base station. COPYRIGHT KIPO 2015 ...

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Номер записи: 4
21-10-2022 дата публикации

이중 빔 포밍에 기반한 간섭 완화 장치 및 방법

Номер: KR102456845B1
Автор: 정방철, 노고산, 김일규, 정희상, 염정선, 윤장혁
Принадлежит: 한국전자통신연구원, 충남대학교산학협력단

... 본 발명의 이중 빔 포밍에 기반한 간섭 완화 장치는, 주파수 공유형 위성 및 셀룰러 네트워크에서 이중 빔 포밍에 기반한 간섭 완화를 위한 장치에 있어서, 프로세서(processor) 및 프로세서를 통해 실행되는 적어도 하나의 명령이 저장된 메모리(memory)를 포함하고, 상기 적어도 하나의 명령은 상기 프로세서가, 모든 셀룰러 기지국에게 초기 간섭 임계치로 동일한 간섭량을 설정하는 단계(a), MRT 빔포밍 벡터로 인해 발생하는 간섭량이 초기 간섭 임계치 이상인 기지국들의 집합을 선정하는 단계(b), 상기 기지국들의 집합에 포함된 기지국들부터 네트워크 전체 잔여 허용 간섭량을 구하여 해당 기지국들의 간섭량 조건을 낮추는 단계(c), 상기 기지국들의 집합에 포함되지 않은 나머지 기지국들의 집합에 포함된 기지국들에게 네트워크 전체 잔여 허용 간섭량의 값을 동일하게 분배하여 간섭 임계값을 부여하는 단계(d), 및 각각의 셀룰러 기지국에 대해서 재설정된 허용 간섭량을 고려하여 잔여 허용 간섭량이 없을 때까지 상기 단계(b) 및 단계(d)를 반복하는 단계(e)를 수행하도록 구성된다.

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Номер записи: 5
19-01-2021 дата публикации

APPARATUS AND METHOD FOR MULTIPLE ANTENNA COMMUNICATION USING SPATIAL MODULATION WITH SPACE-TIME LINE CODE

Номер: KR102205226B1
Автор: JUNG BANG CHUL, LEE KI HUN
Принадлежит: IAC IN NAT UNIV CHUNGNAM, THE INDUSTRY & ACADEMIC COOPERATION IN CHUNGNAM NATIONAL UNIVERSITY (IAC)

The present invention relates to a device and a method for multi-antenna communication using spatial modulation based on space-time linear coding. The method for generating a wireless signal for data communication at a transmitting end provided with a plurality of antennas includes: acquiring data bits to be transmitted; generating first and second modulation symbols by modulating some of the acquired data bits by a predetermined modulation method; selecting one of the antennas to transmit the wireless signal based on the rest of the acquired data bits; and generating first and second space-time linear coding (STLC) signals, which are wireless signals to be transmitted through the selected antenna at first and second time slots, by performing STLC using the first modulation symbol, the second modulation symbol, and information on the channel between the selected antenna and a receiving end antenna receiving the wireless signal. With the present invention, it is possible to improve the average ...

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Номер записи: 6
03-01-2014 дата публикации

COMMUNICATION SYSTEM USING INTERFERENCE ALIGNMENT IN MULTI-CELL ENVIRONMENT

Номер: WO2014003256A1
Автор: JUNG, Bang Chul, SHIN, Won Yong
Принадлежит:

The present invention relates to the selection of a terminal, which transmits data using an interference alignment scheme, from among a plurality of terminals. A base station transmits a null-space matrix to a terminal, and the terminal generates interference amount information which the terminal transmits to other cells using the null-space matrix. The base station selects a data transmitting terminal on the basis of the interference amount information of each terminal, and receives data from the selected data transmitting terminal using the interference alignment scheme. According to the present invention, inter-cell interference can be reduced.

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Номер записи: 7
10-09-2015 дата публикации

APPARATUS AND METHOD FOR RECOVERYING SPARSE SIGNAL USING PARALLEL ORTHOGONAL MATCHING PURSUIT

Номер: KR0101551752B1
Автор: 정방철, 반태원, 박정홍
Принадлежит: 경상대학교산학협력단

... 수신 신호에서 성긴 신호를 복원하는 복원 장치 및 복원 방법이 개시된다. 복원 장치 및 복원 방법은 직교 매칭 퍼슛 기법을 이용하여 성긴 신호를 복원하며, 직교 매칭 퍼슛 기법에서의 초기 인덱스를 복수 개 선택하고, 선택된 복수 개의 초기 인덱스 각각에 대하여 직교 매칭 퍼슛 기법을 적용한다.

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Номер записи: 8
31-12-2015 дата публикации

SYSTEM AND METHOD FOR TRANSMITTING FRAME FOR INTERFERENCE ALIGNMENT AND CONTROLLING IN MULTI-CELL RANDOM ACCESS NETWORK

Номер: KR1020150146380A
Автор: OH, JIN HYUNG, JUNG, BANG CHUL, JIN, HU, SONG, MYUNG SUN
Принадлежит:

The present invention relates to a method for transmitting a frame for interference alignment and controlling, wherein interference between multiple cells in a random access network are controlled. The method comprises the steps of: calculating a channel matrix of another base service set (BSS) by measuring channel information between an access point and a user terminal; performing a singular value decomposition (SVD) by using the calculated channel matrix; selecting a beamforming vector by considering the interference amount to another access point based on a particular value decomposition performed in the channel matrix; and calculating leakage interference (LIF) based on the selected beam forming vector. COPYRIGHT KIPO 2016 (201) Calculate a channel matrix about other BSSs (202) Perform SVD (203) Select a transmission weighted value vector (204) Calculate a leaked interference value (AA) Start (BB) Finish ...

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Номер записи: 9
07-07-2011 дата публикации

POWER LINE COMMUNICATION CONTROL METHOD AND APPARATUS FOR ONLINE ELECTRIC VEHICLE

Номер: KR2011081455A2
Автор: CHO, Dong Ho, JUNG, Bang Chul, CHANG, Woo Hyuk, LEE, Jong Min, KIM, Jin Kyu, EEM, Chang Kyoung, KIM, Yeong Min, CHUN, Hyun Woo, PARK, Mi Hyun, YOO, Sang Jo, SHIN, Young Su, KIM, Dae Hwan, KIM, Yong Ho
Принадлежит:

The present invention relates to a power line communication control method and apparatus for an online electric vehicle, and more specifically, to a power line communication control method and apparatus for an online electric vehicle, in which power line communication is enabled without interference from a feeder under any circumstances including the on/off state or the like of a feeding segment for an electric vehicle, which is equipped on the road. According to the present invention, an interference signal caused by power provided through the feeder is removed in the on state of the feeding segment, and normal communication is performed even in a state of the power being deteriorated, thereby enabling the power line communication without interference from the feeder in any situation.

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Номер записи: 10
16-08-2022 дата публикации

복수의 링크에 주파수를 할당하는 방법 및 장치

Номер: KR102432850B1
Автор: 김용신, 박재돈, 조정호, 정방철, 이호원, 이기훈, 이형주
Принадлежит: 국방과학연구소

... 복수의 링크 중에서, 제1 주파수 대역이 할당되었을 때 최대 SINR을 갖는 제1 링크에 제1 주파수 대역을 할당하고, 제1 링크를 이미 주파수가 할당된 링크로 구성된 제1 그룹에 추가하는 단계, 제1 그룹에 포함된 링크로 인한 간섭을 고려하여 제1 그룹에 포함된 링크를 제외한 나머지 링크에 대하여, 제1 주파수 대역이 할당되었을 때의 SINR을 계산하고, 계산 결과에 기초하여 제2 그룹을 결정하는 단계, 제2 그룹에 포함된 링크에 제1 주파수 대역이 할당되었을 때, 제1 그룹에 포함된 링크의 SINR 마진 최소값을 산출하는 단계 및 산출 결과에 기초하여, 제2 그룹에 포함된 링크 중에서 제1 그룹의 링크에게 가장 큰 SINR 마진 최소값을 제공하는 링크에 제1 주파수 대역을 할당하는 단계를 포함하는, 복수의 링크에 주파수를 할당하는 방법을 제공한다.

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Номер записи: 11
28-04-2016 дата публикации

BUFFER-BASED TWO-WAY RELAY COMMUNICATION SYSTEM USING LATTICE CODES

Номер: WO2016064113A1
Автор: JUNG, Bang Chul, YANG, Hyun Jong
Принадлежит:

Disclosed is a relay node. An embodiment of the present invention comprises: a receiver for receiving transmission signals which a plurality of source nodes transmit during a first time interval and storing reception signals including the transmission signals; a processor for generating corresponding signals corresponding to the reception signals on the basis of a codeword selected from the lattices of a lattice code, performing lattice decoding on the corresponding signals to generate a relay symbol, and encoding the relay symbol to generate a relay broadcasting signal; and a transmitter for transmitting the relay broadcasting signal to the plurality of source nodes during a second time interval.

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Номер записи: 12
11-08-2011 дата публикации

ELECTRIC VEHICLE CHARGING SYSTEM AND METHOD OF PROVIDING SAME

Номер: KR2011096610A1
Автор: CHO, Dong Ho, CHEE, Dong Han, LEE, Ho Won, JUNG, Bang Chul
Принадлежит:

The present invention relates to an electric vehicle charging system and a method of providing same, and more particularly, to an electric vehicle charging system which can start charging as soon as an electric vehicle is parked and use the remaining power in the electric vehicle by providing the remaining power to a central system, and to a method of providing same.

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Номер записи: 13
28-07-2016 дата публикации

TERMINAL DISCOVERY SERVICE SYSTEM AND METHOD IN WIRELESS COMMUNICATION SYSTEM

Номер: WO2016117800A1
Автор: LEE, Woong-Sup, JUNG, Bang Chul, BAN, Tae Won
Принадлежит:

The present invention relates to a terminal discovery service method in a wireless communication system supporting device to device(D2D) communication, the terminal discovery service method comprising the steps of: generating pilot beacon data in a non-beacon transmission period by a first terminal; performing terminal discovery in order to perform D2D communication and establishing a link between the first terminal and a discovered second terminal; and transmitting the pilot beacon data to the discovered terminal through a radio resource according to radio resource information, received from a serving base station, in the established link so as to perform D2D communication between the linked first and second terminals.

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Номер записи: 14
16-09-2015 дата публикации

DEVICE-TO-DEVICE COMMUNICATION SCHEME IN MULTI BAND WIRELESS NETWORK

Номер: KR0101553221B1
Автор: 반태원, 정방철
Принадлежит: 경상대학교산학협력단

... 단말기간 직접 통신을 위하여 주파수 대역을 설정하는 주파수 대역 설정 장치 및 설정된 주파수 대역을 이용하여 통신을 수행하는 통신 방법이 개시된다. 개시된 주파수 대역 설정 장치는 무선 네트워크에 할당된 주파수 대역 중에서, 단말기가 접속한 기지국이 사용하는 않는 주파수 대역을 유휴 주파수 대역으로 결정하고, 유휴 주파수 대역 중에서 두 단말기가 모두 사용할 수 있는 주파수 대역을 직접 통신 주파수 대역으로 결정한다. 두 단말기는 직접 통신 주파수 대역을 이용하여 데이터를 전송할 수 있다.

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Номер записи: 15
06-07-2017 дата публикации

DEVICE AND METHOD FOR DISTRIBUTIVELY SCHEDULING IN DEVICE-TO-DEVICE DIRECT COMMUNICATION NETWORK

Номер: WO2017115984A1
Автор: BAN, Tae Won, JUNG, Bang Chul
Принадлежит:

Disclosed is a scheduling method, which does not use a centralized scheduling device, in a D2D communication network. According to the disclosed scheduling method, the scheduling of the D2D communication network can be performed using only autonomous scheduling of transmission devices included in each D2D pairs without using an excessive feedback.

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Номер записи: 16
03-09-2015 дата публикации

SENSOR NODE, RECEPTION NODE, WIRELESS NETWORK SYSTEM INCLUDING SENSOR NODE AND RECEPTION NODE, AND OPERATION METHOD OF SENSOR NODE AND RECEPTION NODE

Номер: WO2015129993A1
Автор: JUNG, Bang Chul, JEON, Sang Woon
Принадлежит:

Disclosed is a sensor node in a wireless network system including at least one reception node and a plurality of sensor nodes. One embodiment comprises: a detection unit for detecting an event which occurs within the wireless network system; a processor for checking whether the sensor node can participate in a first transmission group formed on the basis of a first channel gain of a channel configured between the sensor node and the reception node and a second channel gain of a channel configured between each of the plurality of the sensor nodes and the reception node, and configuring a transmission power of the sensor node to satisfy a predetermined standard according to the checking; and a transmission unit for transmitting data generated according to the detected event to the reception node.

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Номер записи: 17
03-08-2017 дата публикации

METHOD AND APPARATUS FOR LINK SCHEDULING IN DEVICE-TO-DEVICE (D2D) DIRECT COMMUNICATION NETWORK

Номер: WO2017131413A1
Автор: BAN, Tae Won, JUNG, Bang Chul
Принадлежит:

The present invention relates to a method and an apparatus for link scheduling comprising the steps of: searching device-to-device (D2D) pairs capable of a D2D communication; obtaining channel coefficient information of each of the searched D2D pairs; sorting the searched D2D pairs in descending order using the channel coefficient; calculating a sum rate when a k-th D2D pair in the sorted order of the searched D2D pairs is added; comparing the sum rate with a sum rate when a k-1-th D2D pair is added; and selecting D2D pairs which can maximize the sum rate, considering the comparison result.

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Номер записи: 18
13-08-2015 дата публикации

DISTRIBUTED USER SCHEDULING USING MULTIPLE ANTENNAS

Номер: WO2015119364A1
Автор: JUNG, Bang Chul, CHAE, Seong Ho, BAN, Tae Won
Принадлежит:

Disclosed is a radio communication system which selects k number of transmission and reception pairs and then transmits data thereto in a wireless network where n number of transmission and reception pairs exist, wherein k is smaller than n. In the disclosed radio communication system, transmission and reception pairs are determined to minimize the effect of interference between the transmission and reception pairs and are determined using a distributed scheduling scheme other than a centralized scheme.

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Номер записи: 19
21-08-2015 дата публикации

DEVICE-TO-DEVICE COMMUNICATION METHOD USED IN MULTI-FREQUENCY NETWORK

Номер: KR1020150095313A
Автор: BAN, TAE WON, JUNG, BANG CHUL
Принадлежит:

The present invention discloses a frequency band setting device which sets a frequency band for device-to-device (D2D) communication and a communication method for executing communication by using the set frequency band. The frequency band setting device determines the frequency bands, which are not used by a base station accessed by a terminal, in the frequency bands allocated to a wireless network as idle frequency bands. One of the idle frequency bands, which can be used by both of two terminals, is determined to be the D2D communication frequency band. The two terminals use the D2D communication frequency band to transmit data. COPYRIGHT KIPO 2015 (610) Idle frequency determining unit (620) Terminal common frequency determining unit (630) Direct communication frequency band determining unit (640) Reception unit (650) Transmission unit ...

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Номер записи: 20
22-03-2023 дата публикации

다중 PRN 기반 배열안테나를 이용한 항기만 빔포밍 장치 및 방법

Номер: KR20230040059A
Автор: 윤장혁, 박은병, 최동환, 손석보, 이영석, 노재희, 염정선, 정방철, 이상정
Принадлежит:

... 본 발명은 다중 PRN 기반 배열안테나를 이용한 항기만 빔포밍 장치 및 방법에 관한 것으로, 항기만 빔포밍 장치는 배열안테나를 통해 신호를 수신하고 수신된 신호를 역확산(Despreading)하는 신호 수신 및 역확산부, 수신된 신호의 역확산 이후 OMP(Orthogonal Matching Pursuit) 또는 SOMP(Simultaneous OMP) 알고리즘을 이용하여 기만신호가 입사되는 방향을 추정하는 기만신호 DoA 추정부, 추정된 기만신호 입사 방향의 차이를 계산하여 기만신호를 탐지하는 기만신호 탐지부, 추정된 기만신호 입사 방향에 대해 상관 행렬을 생성하여 화이트닝(Whitening) 행렬을 만들고 상기 화이트닝 행렬을 이용하여 각 PRN 신호를 화이트닝하여 위성신호의 조향 벡터를 추정하는 위성신호 DoA 추정부, 및 추정된 기만신호 입사 방향 및 위성신호의 조향 벡터를 이용하여 기만신호를 제거하고 위성신호의 이득을 향상시키는 빔포밍을 수행하는 빔포밍부를 포함함으로써, 작은 기만신호 전력과 적은 수의 스냅샷만으로 정확하게 기만신호의 방향을 탐지하여 항기만 빔포밍을 설계할 수 있다.

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Номер записи: 21
10-06-2010 дата публикации

DATA TRANSFER METHOD, DATA TRANSMISSION APPARATUS, AND COMMUNICATION SYSTEM IN MULTI-HOP RELAY SYSTEM

Номер: KR2010064867A2
Автор: JEON, Young Hyun, YU, Tak Ki, KWUN, Jong Hyung, MIN, Chan Ho, KANG, Min Suk, KIM, Hyu Dae, JUNG, Bang Chul, LEE, Dong Won
Принадлежит:

The present invention relates to a data transfer method in a multi-hop relay system. The data transfer method comprises: a step for allowing a base station to receive from a first terminal the channel information (Hd,1) between the base station and the first mobile station, a step for making the base station generate an interference cancellation precoding matrix using Hd,1, a step for forcing the base station to transfer first data to a relay station, and a step for making the relay station transfer the first data to the first mobile station and forcing the base station to transfer second data to a second mobile station, wherein the second data is converted using the interference cancellation precoding matrix. According to the disclosed data transfer method in the multi-hop relay system, the base station transfers data to another mobile station efficiently when the relay station transfers data to a mobile station. Therefore, the data transfer method is able to efficiently use the resources ...

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Номер записи: 22
25-08-2016 дата публикации

IN-NETWORK COMPUTING APPARATUS WITH IMPROVED DELAY AND LOW COMPLEXITY AND METHOD

Номер: KR101651350B1
Автор: JUNG, BANG CHUL, JEON, SANG WOON
Принадлежит: INDUSTRY-ACADEMIC COOPERATION FOUNDATION GYEONGSANG NATIONAL UNIVERSITY, ANDONG NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION

The present invention relates to a network computing apparatus communicating with a plurality of sensors. Provided is a network computing apparatus which includes a grouping part which groups the plurality of sensors into a plurality of sensor groups based on a predetermined standard; a measurement part which measures a channel gain with the network computing apparatus, to each of the plurality of grouped sensor groups; and a control part which receives data from a first group which has a maximum channel gain with the network computing device among the plurality of sensor groups. So, the network computing apparatus can be used for various fields such as a military network. COPYRIGHT KIPO 2016 (110) Grouping part (120) Measurement part (130) Control part ...

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Номер записи: 23
15-12-2016 дата публикации

다중셀 무선망에서 프리코더 추천정보의 피드백을 이용한 셀 성능 개선 방법

Номер: KR0101687024B1
Автор: 이종민, 정방철, 조동호, 이병무, 이성춘, 이종식
Принадлежит: 주식회사 케이티

... 본 발명은 다중셀 무선망에서 프리코더 추천정보의 피드백을 이용한 셀 성능 개선 방법에 관한 것으로서, 다중 셀 무선망에서 셀 간 협력에 의하여 미리 결정된 빔패턴을 사용하여 하향 통신을 수행하되, 현재 기지국이 사용하고 있는 프리코더보다 더 높은 수신성능을 제공할 가능성이 있는 미사용 프리코더를 피드백으로 추천받아 현재 기지국의 빔패턴을 변경함으로써, 최소한의 피드백 정보를 통하여 셀 경계 단말에 대한 셀 성능을 향상시키고자 한다. 이를 위하여, 본 발명은, 다중 셀 기반 무선망의 기지국에서 셀 성능을 개선하는 방법에 있어서, 셀간 협력에 의하여 배정된 초기 빔패턴에 따라 서비스 대상 단말에 데이터를 전송하는 단계; 서비스 대상이 아닌 단말로부터 프리코더 추천정보를 수신하는 단계; 및 인접 셀과의 협력을 통하여 상기 기지국이 빔패턴 변경대상으로 선정되면, 상기 프리코더 추천정보에 기초하여 상기 초기 빔패턴 및 서비스 대상 단말을 변경하는 단계를 포함하는 것을 특징으로 한다.

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Номер записи: 24
11-11-2015 дата публикации

WIRELESS MOBILE COMMUNICATIONS SYSTEM AND METHOD FOR PERFORMING USER SCHEDULING BASED ON CUMULATIVE DISTRIBUTION FUNCTION

Номер: KR101568191B1
Автор: JUNG, BANG CHUL, JIN HU
Принадлежит: INDUSTRY-ACADEMIC COOPERATION FOUNDATION GYEONGSANG NATIONAL UNIVERSITY

The present invention relates to wireless mobile communications system and method for performing user scheduling based on a cumulative distribution function. According to the method of the present invention, in each of terminals in a cell region, a signal to noise ratio (SNR) of a signal received from a neighboring base station is measured, and in each of the terminals, the measured SNR is compared to a predetermined critical value. When the measured SNR is the critical value or greater as a result of comparison in each of the terminals, a transmission power of each of the terminals is adjusted, and a cumulative distribution function (CDF) of an upward link SNR to a serving base station is calculated through the adjusted transmission power with respect to each time slot in each of the terminals. In each of the terminals, a value of the calculated CDF with respect to each time slot is transmitted to the serving base station. In the serving base station, when the value of the CDF of the upward ...

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Номер записи: 25
16-06-2011 дата публикации

METHOD FOR CONTROLLING THE CHARGING OF SEGMENTS FOR AN ONLINE ELECTRIC VEHICLE

Номер: WO2011071344A3
Автор: CHO, Dong Ho, JUNG, Bang Chul, CHANG, Woo Hyuk, LEE, Jong Min, KIM, Jin Kyu, KIM, Yeong Min, CHUN, Hyun Woo, PARK, Mih Hun
Принадлежит:

The present invention relates to a method for controlling the charging of segments for an online electric vehicle. More particularly, the present invention relates to a method for controlling the charging of segments for an online electric vehicle, which controls an inverter with due consideration for the charging response time of segments so as to reduce the waste of electricity in a system that supplies electricity to the electric vehicle through magnetic induction using a power-supplying device including one or more segments buried under a road surface. According to a preferred embodiment of the present invention, the method for controlling the charging operation of segments for an online electric vehicle comprises the following steps: (a) receiving, from segments, information on the speed and position of the vehicle entering the range of the power-supplying device; and (b) controlling the charging / discharging timing of the current segment from which the vehicle is leaving and the ...

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Номер записи: 26
07-07-2011 дата публикации

MAGNETIC INDUCTION COMMUNICATION SYSTEM FOR ON-LINE ELECTRIC VEHICLE AND DEMODULATION APPARATUS AND DEMODULATION METHOD OF MAGNETIC INDUCTION COMMUNICATION SYSTEM

Номер: WO2011081478A3
Автор: CHO, Dong Ho, JUNG, Bang Chul, CHANG, Woo Hyuk, LEE, Jong Min, KIM, Jin Kyu, EEM, Chang Kyoung, KIM, Yeong Min, CHUN, Hyun Woo, PARK, Mi Hyun, YOO, Sang Jo, SHIN, Young Su, LIM, Seung Ok, WON, Yun Jae, KIM, Sun Hee, MOON, Yeon Kug, LIM, Yong Seok
Принадлежит:

A magnetic induction communication system for an on-line electric vehicle according to the present invention comprises: a first digital signal processing section that performs digital signal processing on packet data which is generated in response to a magnetic induction communication protocol; a digital analog conversion section that converts a digital signal, which is processed by the digital signal processing section, into an analog signal; a first filtering section that eliminates a high frequency component from the analog signal which is obtained by the conversion of the digital analog conversion section; a first amplification section that amplifies the analog signal which is filtered by the first filtering section; a magnetic field transmission antenna section that generates a magnetic field on the basis of the analog signal which is amplified by the first amplification section. According to the invention, by using a magnetic induction communication technology capable of wireless ...

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Номер записи: 27
12-10-2018 дата публикации

APPARATUS AND METHOD FOR PROVIDING FREQUENCY ASSIGNMENT

Номер: KR101907678B1
Автор: JUNG DAE JIN, LEE EUNHYOUNG, PARK JAEDON, BAEK GWANG HOON, PARK PANGUN, JUNG BANG CHUL, JEON SANG WOON, LEE HOWON
Принадлежит: AGENCY FOR DEFENSE DEVELOPMENT

The present invention relates to frequency assignment technique. A frequency assignment apparatus includes: a collision link extraction part for extracting a collision link for wireless link based on the signal to interference and noise ratio of a wireless link on a wireless network; a priority scheduler for setting a link group for frequency assignment based on the collision link extraction result of the collision link extraction part and determining a priority for the frequency assignment for each link group; and a frequency assignment part for assigning a frequency to each link in the link group sequentially from the link group having the higher priority. It is possible to reduce a calculation time by assigning the frequency based on the priority. COPYRIGHT KIPO 2018 (10) Interference index model part (100) Frequency assignment apparatus (102) Collision link extraction part (104) Priority scheduler (106) Frequency assignment part (AA) Spectrum mask of a transceiver (BB) Wireless network ...

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Номер записи: 28
10-03-2025 дата публикации

기지국 장치의 단말 스케줄링 방법, 이를 수행하는 기지국 장치 및 통신 시스템

Номер: KR102778141B1
Автор: 김태훈, 정방철, 윤장혁, 손웅
Принадлежит: 국방과학연구소, 충남대학교산학협력단

... 본 발명인 기지국 장치의 단말 스케줄링 방법, 이를 수행하는 기지국 장치 및 통신 시스템은 RIS가 사용될 초고주파 통신 시스템을 위해 기지국과 RIS 및 사용자 단말 사이 다량의 정보 교환 없이 소량의 파일럿 신호 전송만으로도 목표로 하는 성능 지표를 위한 사용자 단말을 스케줄링하도록 하고, 파일럿 신호 전송 구간의 시간슬롯 수 및 데이터 신호 전송 구간의 길이 등을 유동적으로 조절하여 여러 상황에 대응할 수 있도록 하며, RIS를 사용하는 복잡한 시스템일지라도 통신 체계를 간단하게 만들어 시스템의 복잡도를 낮출 수 있도록 하고, 이로 인해 전체적으로 RIS 기반의 기밀 통신이 가능하도록 하는데 있다.

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Номер записи: 29
07-07-2011 дата публикации

POWER LINE COMMUNICATION CONTROL METHOD AND APPARATUS FOR ONLINE ELECTRIC VEHICLE

Номер: WO2011081455A3
Автор: CHO, Dong Ho, JUNG, Bang Chul, CHANG, Woo Hyuk, LEE, Jong Min, KIM, Jin Kyu, EEM, Chang Kyoung, KIM, Yeong Min, CHUN, Hyun Woo, PARK, Mi Hyun, YOO, Sang Jo, SHIN, Young Su, KIM, Dae Hwan, KIM, Yong Ho
Принадлежит:

The present invention relates to a power line communication control method and apparatus for an online electric vehicle, and more specifically, to a power line communication control method and apparatus for an online electric vehicle, in which power line communication is enabled without interference from a feeder under any circumstances including the on/off state or the like of a feeding segment for an electric vehicle, which is equipped on the road. According to the present invention, an interference signal caused by power provided through the feeder is removed in the on state of the feeding segment, and normal communication is performed even in a state of the power being deteriorated, thereby enabling the power line communication without interference from the feeder in any situation.

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Номер записи: 30
08-04-2016 дата публикации

SYSTEM AND METHOD FOR SERVICING TERMINAL SEARCHING IN WIRELESS COMMUNICATIONS SYSTEM

Номер: KR101609648B1
Автор: LEE, WOONG SUP, JUNG, BANG CHUL, BAN, TAE WON
Принадлежит: INDUSTRY-ACADEMIC COOPERATION FOUNDATION GYEONGSANG NATIONAL UNIVERSITY

A method for servicing terminal searching in a wireless communications system for supporting device to device (D2D) communications comprises the following steps: generating pilot beacon data during a non-beacon transmission period in a first terminal; forming a link between second terminals searched by performing terminal searching to perform D2D communications; and performing D2D communications between the linked first and second terminals by transmitting the pilot beacon data to the terminal through a wireless resource according to wireless resource information received from a serving base station in the formed link. COPYRIGHT KIPO 2016 (110) Generating pilot beacon data (112) Checking assigned wireless support (114) Pilot beacon data broadcasting (116) Terminal exploration (118) Exploration detection (120) Performing D2D communications (AA) Start (BB) End ...

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Номер записи: 31
30-10-2018 дата публикации

접속 클래스 제한 기법을 이용하는 임의 접속 시스템

Номер: KR0101913356B1
Автор: 정방철, 진후
Принадлежит: 충남대학교산학협력단

... 접속 클래스 제한 기법을 이용하는 임의 접속 시스템이 개시된다. 개시된 임의 접속 시스템은 다수의 디바이스들이 동일한 제어 시스템에 동시에 임의 접속을 시도하는 경우에, 임의 접속을 시도하는 디바이스들의 개수를 추정함으로써, 임의 접속 절차에서의 시간 지연을 최소화 할 수 있다.

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Номер записи: 32
16-06-2011 дата публикации

METHOD FOR CONTROLLING A COMMUNICATION MODULE FOR AN ONLINE ELECTRIC VEHICLE

Номер: WO2011071346A3
Автор: CHO, Dong Ho, JUNG, Bang Chul, CHANG, Woo Hyuk, LEE, Jong Min, KIM, Jin Kyu, KIM, Yeong Min, CHUN, Hyun Woo, PARK, Mi Hyun
Принадлежит:

The present invention relates to a method for controlling a magnetic field communication module. More particularly, the present invention relates to a method for controlling a communication module for an online electric vehicle, which performs scheduling and handover between magnetic field communication modules so as to efficiently control information transceiving between segments through the magnetic field communication modules of segments for the online electric vehicle traveling on a roadway. According to one embodiment of the present invention, a method for controlling a power-supplying device for an online electric vehicle involves receiving packet length information of data for supplying power to the vehicle, determining, on the basis of the packet length information, the number of communication modules to which data is to be transmitted, and dividing data into packets in the order of 1st to Nth (where N is a natural number greater than or equal to 1) communication modules and transmits ...

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Номер записи: 33
18-05-2017 дата публикации

APPARATUS AND METHOD FOR TRANSMITTING DATA USING RANDOM ACCESS PREAMBLE

Номер: WO2017082545A1
Автор: BAN, Tae Won, JUNG, Bang Chul
Принадлежит:

Disclosed is a data transmission system for transmitting data using a random access preamble. The disclosed data transmission system comprises: a data transmission apparatus which selects a random access preamble according to the value of data, and transmits the selected random access preamble; and a data reception apparatus which receives the transmitted random access preamble, and determines data according to the received random access preamble.

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Номер записи: 34
08-08-2017 дата публикации

LINK SCHEDULING METHOD AND APPARATUS IN DIRECT COMMUNICATION NETWORK BETWEEN DEVICES

Номер: KR1020170090715A
Автор: BAN, TAE WON, JUNG, BANG CHUL
Принадлежит:

The present invention relates to link scheduling method and apparatus, which can search for D2D pairs capable of performing D2D communication, obtain each channel coefficient information of the searched D2D pairs, align the searched D2D pairs in a descending order, calculates a sum rate of transmission capacities of a case when k^th D2D pair is added in an aligned order of the searched D2D pairs, compares the sum rate of the transmission capacities of the case when k^th D2D pair with a sum rate of transmission capacities of a case when (k-1)^th D2D pair is added, and selects D2D pairs with the maximum sum rate of transmission capacities by considering the comparison result. Accordingly, the present invention can select the D2D pairs to maximize the sum rate of transmission capacities. COPYRIGHT KIPO 2017 (310) Search for D2D pairs capable of performing D2D communication (312) Obtain each channel coefficient information of the searched D2D pairs (314) Set the searched D2D pairs as zero of ...

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Номер записи: 35
07-07-2015 дата публикации

APPRATUS AND METHOD FOR SELECTING DATA TRANSMITTING ANTENNA

Номер: KR0101533999B1
Автор: 정방철, 임한영
Принадлежит: 경상대학교산학협력단

... 복수의 전송 장치 안테나 중에서 전송 안테나를 선택하고, 선택된 전송 안테나를 이용하여 데이터를 전송하는 통신 시스템이 개시된다. 개시된 통신 시스템은 채널의 용량을 최대화 하기 위하여, 각 전송 장치 안테나에 대응되는 채널 벡터들 중에서, 채널 벡터의 크기 및 각 채널 벡터간의 상관도에 기반하여 채널 벡터를 선택하고, 선택된 채널 벡터에 대응되는 전송 장치 안테나를 전송 안테나로 선택할 수 있다.

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Номер записи: 36
10-06-2010 дата публикации

DATA TRANSFER METHOD, DATA TRANSMISSION APPARATUS, AND COMMUNICATION SYSTEM IN MULTI-HOP RELAY SYSTEM

Номер: WO2010064867A3
Автор: JEON, Young Hyun, YU, Tak Ki, KWUN, Jong Hyung, MIN, Chan Ho, KANG, Min Suk, KIM, Hyu Dae, JUNG, Bang Chul, LEE, Dong Won
Принадлежит:

The present invention relates to a data transfer method in a multi-hop relay system. The data transfer method comprises: a step for allowing a base station to receive from a first terminal the channel information (Hd,1) between the base station and the first mobile station, a step for making the base station generate an interference cancellation precoding matrix using Hd,1, a step for forcing the base station to transfer first data to a relay station, and a step for making the relay station transfer the first data to the first mobile station and forcing the base station to transfer second data to a second mobile station, wherein the second data is converted using the interference cancellation precoding matrix. According to the disclosed data transfer method in the multi-hop relay system, the base station transfers data to another mobile station efficiently when the relay station transfers data to a mobile station. Therefore, the data transfer method is able to efficiently use the resources ...

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Номер записи: 37
05-10-2016 дата публикации

APPARATUS AND METHOD FOR DETERMINING TRANSMISSION POWER IN D2D COMMUNICATIONS SYSTEM

Номер: KR101662505B1
Автор: LEE, WOONG SUP, BAN, TAE WON, JUNG, BANG CHUL
Принадлежит: INDUSTRY-ACADEMIC COOPERATION FOUNDATION GYEONGSANG NATIONAL UNIVERSITY

Disclosed is a method for determining transmission power in a device-to-device (D2D) communications system. According to the disclosed transmission power method, the data transmission rate of D2D communications can be maximally improved, and the sum of an interference signal transmitted from the terminal to a base station can be controlled below a threshold. COPYRIGHT KIPO 2016 (210) Terminal (220) Base station (230) Transmitting a pilot signal (231) Estimating a first channel state (240) Estimating a second channel state (241) Transmitting the second channel state (250) Determining transmission power (260) Transmitting the transmission power (261) Transmitting data to a second terminal ...

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Номер записи: 38
14-02-2017 дата публикации

APPARATUS AND METHOD FOR DISPERSIVELY SCHEDULING IN DEVICE-TO-DEVICE NETWORK

Номер: KR101706618B1
Автор: BAN, TAE WON, JUNG, BANG CHUL
Принадлежит: INDUSTRY-ACADEMIC COOPERATION FOUNDATION GYEONGSANG NATIONAL UNIVERSITY

Disclosed is a scheduling technique in a device-to-device (D2D) network which does not use a centralized scheduling apparatus. According to the scheduling technique, scheduling a D2D network can be performed only by autonomously scheduling transmission apparatuses included in each D2D pair without using excessive feedbacks. COPYRIGHT KIPO 2017 (210) First reception apparatus (220) First transmission apparatus (230) Second transmission apparatus (240) Second reception apparatus (251) First channel securement (252) Second channel securement (254,253) Timer setting (262,263) Reception notification packet (271) Third channel securement (272) Channel size comparison (281,282) Data transmission (AA,261) Indicator ...

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Номер записи: 39
18-10-2017 дата публикации

단말간 직접통신 네트워크에서 링크 스케줄링 방법 및 장치

Номер: KR0101786612B1
Автор: 반태원, 정방철
Принадлежит: 경상대학교산학협력단

... 본 발명은 D2D 통신이 가능한 D2D 페어들을 검색하고, 상기 검색된 D2D 페어들 각각의 채널 계수 정보를 획득하고, 상기 채널 계수를 이용해서 상기 검색된 D2D 페어들을 내림차순으로 정렬하고, 검색된 D2D 페어들을 정렬된 순서대로 k번째 D2D 페어가 추가된 경우의 전송 용량의 합(sum rate)을 계산하고, k-1번째 D2D 페어가 추가된 경우의 전송 용량의 합과 비교하고, 비교결과를 고려하여 전송 용량의 합(sum rate)이 최대가 될 수 있는 D2D 페어들을 선택하는 링크 스케줄링 방법 및 장치에 관한 것 이다.

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Номер записи: 40
09-11-2015 дата публикации

BUFFER BASED BIDIRECTIONAL RELAY COMMUNICATION SYSTEM USING LATTICE CODES

Номер: KR101567732B1
Автор: JUNG, BANG CHUL, YANG, HYUN JONG
Принадлежит: INDUSTRY-ACADEMIC COOPERATION FOUNDATION GYEONGSANG NATIONAL UNIVERSITY

A relay node is disclosed. According to an embodiment, the relay node comprises: a receiver for receiving transmitting signals which transmitting source nodes have transmitted during a first time interval and storing a receiving signal having the transmitting signals in a buffer; a processor for generating a corresponding signal corresponding to the receiving signal based on a code word selected from a lattice of a lattice code, generating a relay symbol by lattice-decoding the corresponding signal, and generating a relay broadcast signal by encoding the relay symbol; and a transmitter for transmitting the relay broadcast signal to the source nodes during a second time interval, thereby obtaining a higher performance than an existing bidirectional relay communication system. COPYRIGHT KIPO 2016 (AA) First time period (BB) Second time period ...

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Номер записи: 41
02-02-2017 дата публикации

DEVICE AND METHOD FOR DETERMINING TRANSMISSION POWER IN DEVICE-TO-DEVICE COMMUNICATION SYSTEM

Номер: WO2017018593A1
Автор: LEE, Woong Sup, BAN, Tae Won, JUNG, Bang Chul
Принадлежит:

A technique for determining transmission power in device-to-device (D2D) communication is disclosed. According to the disclosed transmission power technique, the total sum of interference signals transmitted from a terminal to a base station can be controlled to be a threshold value or less even while maximally improving a data transmission rate of the D2D communication.

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Номер записи: 42
19-06-2015 дата публикации

SENSOR NODE, RECEIVER NODE, WIRELESS NETWORK SYSTEM COMPRISING SENSOR NODE AND RECEIVER NODE, AND METHOD OF OPERATING SENSOR NODE AND RECEIVER NODE

Номер: KR101530147B1
Автор: JUNG, BANG CHUL, JEON, SANG WOON
Принадлежит: INDUSTRY-ACADEMIC COOPERATION FOUNDATION GYEONGSANG NATIONAL UNIVERSITY

Disclosed is a sensor node in a wireless network system which includes at least one reception nod and sensor nodes. An embodiment includes a sensing part which senses an event generated in a wireless network system, a processor which checks the participation of a first transmission group based on the first channel gain of a channel set between the sensor node and the reception node, and a second channel gain of a channel set between the sensor nodes and the reception nodes, and a transmission part which transmits data generated according to the sensed event to the reception node. COPYRIGHT KIPO 2015 ...

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Номер записи: 43
01-06-2015 дата публикации

DISTRIBUTED USER SCHEDULING USING MULTIPLE ANTENNAS

Номер: KR101524207B1
Автор: JUNG, BANG CHUL, CHAE, SEONG HO, BAN, TAE WON
Принадлежит: INDUSTRY-ACADEMIC COOPERATION FOUNDATION GYEONGSANG NATIONAL UNIVERSITY

A wireless communications system, which transmits data by selecting K, smaller than n, numbers of transmission and reception pairs, is disclosed in a wireless network having n numbers of transmission and reception pairs. The disclosed wireless communications system is decided to minimize the effect of intervention among the transmission and reception pairs, and the transmission and reception pairs are decided by using a distributed scheduling method, not by a central point of method. COPYRIGHT KIPO 2015 (210) Reception device of a first transmission and reception pair (220) Transmission device of a first transmission and reception pair (230) Transmission device of a second transmission and reception pair (240) Reception device of a second transmission and reception pair (241) Select as a pair of transmission and reception which transmits data (242,260) Determine a transmission weighted value vector (243,250) Determine a reception weighted value vector (244) First pilot signal (245) Second ...

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Номер записи: 44
12-04-2024 дата публикации

정보 및 전력의 동시 무선 전송을 위한 수신 안테나 분할 장치 및 방법

Номер: KR102656410B1
Автор: 김용재, 정방철
Принадлежит: 한국해양과학기술원

... 정보 및 전력의 동시 무선 전송을 위한 수신 안테나 분할 장치 및 방법이 개시된다. 수신 안테나 분할 방법은, 유저로부터 수신 빔포밍 벡터를 수신하는 단계, 수신된 수신 빔포밍 벡터를 이용하여 제로 포싱(ZF: zero forcing) 송신 빔포밍 행렬을 생성하는 단계, 생성된 제로 포싱 송신 빔포밍 행렬을 이용하여 달성 가능한 데이터 전송률 및 하베스팅 에너지를 계산하는 단계 및 계산된 데이터 전송률 및 하베스팅 에너지를 이용하여 각 유저의 최적 안테나 구성을 산출하는 단계를 포함한다.

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Номер записи: 45
04-05-2017 дата публикации

APPARATUS AND METHOD FOR TRANSMITTING DATA USING RANDOM ACCESS PREAMBLE

Номер: KR101732548B1
Автор: BAN, TAE WON, JUNG, BANG CHUL
Принадлежит: INDUSTRY-ACADEMIC COOPERATION FOUNDATION GYEONGSANG NATIONAL UNIVERSITY

Disclosed is a data transmitting system for transmitting data by using a random access preamble. The disclosed data transmitting system comprises: a data transmitting device configured to select a random access preamble in accordance with a value of data and to transmit the selected random access preamble; and a data receiving device configured to receive the transmitted random access preamble and to determine data in accordance with the received random access preamble. COPYRIGHT KIPO 2017 (210) Preamble storage unit (220) Data division unit (230) Preamble selection unit (240) Transmission unit (250) Reception unit ...

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Номер записи: 46
26-08-2022 дата публикации

시공간 부호 기반 무선 암호화 방법 및 장치

Номер: KR102436436B1
Автор: 정방철, 이기훈, 배유경
Принадлежит: 충남대학교산학협력단

... 본 발명은 비신뢰 중계기를 통한 양방향 중계 네트워크에서 시공간 부호 기반 무선 암호화 방법 및 장치에 관한 것으로, 비신뢰 중계기를 통한 한 쌍의 단말 간의 데이터 통신에서의 물리계층 보안 방법은 상기 한 쌍의 단말 각각이 상대 단말로 전송할 데이터를 STLC(space-time line coding) 인코딩한 STLC 신호를 동일 시간 슬롯에서 상기 비신뢰 중계기로 전송하는 동작, 상기 비신뢰 중계기가 상기 한 쌍의 단말 각각에서 온 STLC 신호를 수신하고, STBC 신호로 변환하여 상기 한 쌍의 단말로 전송하는 동작 및 상기 한 쌍의 단말 각각이 상기 비신뢰 중계기로부터 수신한 STBC 신호에서 자신이 상대 단말로 전송한 신호를 제거한 신호에 기초하여 상대 단말이 전송한 데이터를 획득하는 동작을 포함할 수 있다. 이에 따라, 비신뢰 중계기에서의 데이터 도청 또는 감청을 방지할 수 있다.

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Номер записи: 47
28-05-2018 дата публикации

METHOD FOR EFFECTIVELY TRANSMITTING DATA TO REDUCE BACKHAUL TRAFFIC IN WIRELESS NETWORK PROVIDED WITHIN AIRCRAFT

Номер: KR1020180056223A
Автор: CHANG, WOO HYUK, BYUN, JIN KU, BAN, TAE WON, CHO, MOON JE, JUNG, BANG CHUL, PARK, PAN GUN
Принадлежит:

The present invention relates to a wireless network technology. More specifically, the present invention relates to a method for effectively transmitting data to reduce backhaul traffic in a wireless network provided within an aircraft. According to the present invention, an intercell interference problem which is one of key problems of a highly reliable wireless network provided within an aircraft can be solved. To this end, the method comprises the following steps of: allowing a plurality of wireless sensors to transmit a sounding signal to a plurality of access points; allowing the plurality of access points to estimate channel information by using the sounding signal; allowing the plurality of access points to transmit interference channel information of the channel information to a network manager to perform centralized control by using a preset threshold value; allowing the network manager to calculate the total amount of interference channel information by using the interference ...

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Номер записи: 48
01-09-2016 дата публикации

TIME DELAY-IMPROVED, LOW-COMPLEXITY IN-NETWORK COMPUTING DEVICE AND METHOD

Номер: WO2016137112A1
Автор: JUNG, Bang Chul, JEON, Sang Woon
Принадлежит:

Provided is a network computing device that communicates with a plurality of sensors and comprises: a grouping unit for grouping the plurality of sensors into a plurality of sensor groups based on predetermined criteria; a measuring unit for measuring channel gain of the network computing device with respect to each of the plurality of sensor groups that have been grouped; and a control unit for controlling in order to receive data from a first group, from among the plurality of sensor groups, which has the maximum channel gain with respect to the network computing device.

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Номер записи: 49
16-06-2011 дата публикации

METHOD FOR CONTROLLING THE CHARGING OF SEGMENTS FOR AN ONLINE ELECTRIC VEHICLE

Номер: KR2011071344A2
Автор: CHO, Dong Ho, JUNG, Bang Chul, CHANG, Woo Hyuk, LEE, Jong Min, KIM, Jin Kyu, KIM, Yeong Min, CHUN, Hyun Woo, PARK, Mih Hun
Принадлежит:

The present invention relates to a method for controlling the charging of segments for an online electric vehicle. More particularly, the present invention relates to a method for controlling the charging of segments for an online electric vehicle, which controls an inverter with due consideration for the charging response time of segments so as to reduce the waste of electricity in a system that supplies electricity to the electric vehicle through magnetic induction using a power-supplying device including one or more segments buried under a road surface. According to a preferred embodiment of the present invention, the method for controlling the charging operation of segments for an online electric vehicle comprises the following steps: (a) receiving, from segments, information on the speed and position of the vehicle entering the range of the power-supplying device; and (b) controlling the charging / discharging timing of the current segment from which the vehicle is leaving and the ...

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Номер записи: 50
07-03-2016 дата публикации

DEVICE AND METHOD FOR RECOVERING TRANSMITTED SIGNAL USING COMPRESSED SENSING SCHEME IN MULTI-USER SPATIAL MODULATION SYSTEM

Номер: KR1020160024448A
Автор: JUNG, BANG CHUL, BAN, TAE WON, PARK, JEONG HONG
Принадлежит:

Disclosed are a device and a method for recovering a transmitted signal from a received signal. According to the recovering device and the recovering method, an orthogonal matching pursuit method is applied in parallel to each antenna index after selecting indices for multiple transmission antennas. In the case of repeating the orthogonal matching pursuit method, the next index is searched for except for all the antenna indices of users having antennas, which correspond to previous indices. COPYRIGHT KIPO 2016 ...

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Номер записи: 51
28-05-2015 дата публикации

APPARATUS AND METHOD FOR RECOVERING SPARSE SIGNAL USING PARALLEL ORTHOGONAL MATCHING PURSUIT

Номер: KR1020150057133A
Автор: JUNG, BANG CHUL, BAN, TAE WON, PARK, JEONG HONG
Принадлежит:

Disclosed are an apparatus and a method for recovering a sparse signal from a receiving signal. The apparatus and the method for recovering a sparse signal use an orthogonal matching pursuit technique to recover a sparse signal. They select the initial indexes of the orthogonal matching pursuit technique and apply the orthogonal matching pursuit technique to the selected initial indexes, respectively. COPYRIGHT KIPO 2015 ...

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Номер записи: 52
31-01-2023 дата публикации

기지국 장치의 단말 스케줄링 방법, 이를 수행하는 기지국 장치 및 통신 시스템

Номер: KR20230015795A
Автор: 김태훈, 정방철, 윤장혁, 손웅
Принадлежит:

... 본 발명인 기지국 장치의 단말 스케줄링 방법, 이를 수행하는 기지국 장치 및 통신 시스템은 RIS가 사용될 초고주파 통신 시스템을 위해 기지국과 RIS 및 사용자 단말 사이 다량의 정보 교환 없이 소량의 파일럿 신호 전송만으로도 목표로 하는 성능 지표를 위한 사용자 단말을 스케줄링하도록 하고, 파일럿 신호 전송 구간의 시간슬롯 수 및 데이터 신호 전송 구간의 길이 등을 유동적으로 조절하여 여러 상황에 대응할 수 있도록 하며, RIS를 사용하는 복잡한 시스템일지라도 통신 체계를 간단하게 만들어 시스템의 복잡도를 낮출 수 있도록 하고, 이로 인해 전체적으로 RIS 기반의 기밀 통신이 가능하도록 하는데 있다.

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Номер записи: 53
21-05-2015 дата публикации

APPARATUS AND METHOD FOR RECONSTRUCTING SPARSE SIGNAL USING PARALLEL ORTHOGONAL MATCHING PURSUIT TECHNIQUE

Номер: WO2015072613A1
Автор: JUNG, Bang Chul, BAN, Tae Won, PARK, Jeong Hong
Принадлежит:

A reconstruction apparatus and a reconstruction method for reconstructing a sparse signal in a reception signal are disclosed. The reconstruction apparatus and the reconstruction method reconstruct a sparse signal using an orthogonal matching technique, select a plurality of initial indexes of an orthogonal matching pursuit technique, and apply the orthogonal matching pursuit technique with respect to the plurality of selected initial indexes, respectively.

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Номер записи: 54
10-12-2018 дата публикации

항공기내 무선 네트워크에서 백홀 트래픽 감소를 위한 효율적인 데이터 전달 방법

Номер: KR0101909342B1
Автор: 장우혁, 변진구, 반태원, 조문제, 정방철, 박판근
Принадлежит: 국방과학연구소

... 본 발명은 무선 네트워크 기술에 관한 것으로서, 더 상세하게는 항공기내 무선 네트워크에서 백홀 트래픽 감소를 위한 효율적인 데이터 전달 방법에 대한 것이다. 본 발명에 따르면, 항공기내 고신뢰성 무선 네트워크의 핵심 문제 중의 하나인 셀 간 간섭 문제를 해결하는데 도움을 줄 수 있다.

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Номер записи: 55
16-06-2011 дата публикации

METHOD FOR CONTROLLING A COMMUNICATION MODULE FOR AN ONLINE ELECTRIC VEHICLE

Номер: KR2011071346A2
Автор: CHO, Dong Ho, JUNG, Bang Chul, CHANG, Woo Hyuk, LEE, Jong Min, KIM, Jin Kyu, KIM, Yeong Min, CHUN, Hyun Woo, PARK, Mi Hyun
Принадлежит:

The present invention relates to a method for controlling a magnetic field communication module. More particularly, the present invention relates to a method for controlling a communication module for an online electric vehicle, which performs scheduling and handover between magnetic field communication modules so as to efficiently control information transceiving between segments through the magnetic field communication modules of segments for the online electric vehicle traveling on a roadway. According to one embodiment of the present invention, a method for controlling a power-supplying device for an online electric vehicle involves receiving packet length information of data for supplying power to the vehicle, determining, on the basis of the packet length information, the number of communication modules to which data is to be transmitted, and dividing data into packets in the order of 1st to Nth (where N is a natural number greater than or equal to 1) communication modules and transmits ...

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Номер записи: 56
19-10-2018 дата публикации

RANDOM ACCESS SYSTEM USING ACCESS CLASS RESTRICTION TECHNIQUE

Номер: KR1020180114624A
Автор: JUNG, BANG CHUL, JIN, HU
Принадлежит:

The present invention discloses a random access system using an access class restriction technique. The disclosed random access system can minimize a time delay in a random access procedure by estimating the number of devices attempting random access when multiple devices simultaneously attempt random access to the same control system. The random access system using an access class restriction technique comprises: a preamble receiving part; a preamble number determining part; a device number estimating part; a threshold value determining part; and a threshold value transmitting part. COPYRIGHT KIPO 2018 (210) First device (220) Control device (231) Second device (240,280) Random access preamble (251) Determining the number of unselected preambles (252) Estimating the number of devices attempting random access (253) Determining a threshold value (260,CC) Threshold value (271) Generating a random value (272) Determining a random access attempt (AA) First random access time interval (BB) Second ...

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Номер записи: 57