公开(公告)号：KR1020180001606A

公开(公告)日：2018-01-05

申请号：KR1020160076468

申请日：2016-06-20

Applicant: 한국항공대학교산학협력단

Inventor： 정영호 ,  김경호 ,  곽호영

IPC: H04N21/234 ,  H04N21/238 ,  H04N21/61

CPC classification number: H04N21/234 ,  H04N21/238 ,  H04N21/6131

Abstract: 영상신호송신장치가개시된다. 영상신호송신장치는, 영상데이터를인코딩하여적어도하나의영상프레임그룹을획득하는인코더, 통신채널의상태에기초하여상기통신채널에서수용가능한전송비트의크기를결정하고, 상기인코딩된영상프레임그룹의크기가상기수용가능한전송비트의크기보다큰 경우, 상기인코딩된영상프레임그룹의크기가상기수용가능한전송비트의크기이하가되도록상기인코딩된데이터그룹에포함되는복수의프레임중 적어도하나의크기를조정하고, 상기크기가조정된영상프레임그룹을전송하도록통신부를제어하는프로세서및 상기통신채널을통하여상기크기가조정된영상프레임그룹을전송하는상기통신부를포함한다.

公开(公告)号：KR101379791B1

公开(公告)日：2014-04-10

申请号：KR1020130021728

申请日：2013-02-28

Applicant: 한국항공대학교산학협력단

Inventor： 정영호 ,  김종훈 ,  성기영

IPC: H04L1/18

CPC classification number: H04L1/1812

Abstract: A method for providing multi-cast services using a mobile terminal in a device to device (D2D) wireless communications system capable of supporting hybrid automatic repeat request (HARQ) method, comprises the steps of: receiving a multi-cast service data packet from a base station or a first mobile terminal which at least is another mobile terminal among mobile terminals included in the same multi-cast service group as the mobile terminal; receiving a negative acknowledgement signal (NACK) from a second mobile terminal which at least is another terminal except for the first mobile terminal among the mobile terminals in the same multi-cast service group as the mobile terminal when the decoding of the multi-cast service data packet is successful and the number of retransmission does not reach the maximum number of retransmission; generating an additional multi-cast service data packet using an modulation and coding scheme (MSC) level which is different from the MCS level applied to the multi-cast service data packet received from the base station when the decoded multi-cast service data packet is the multi-cast service data packet received from the base station; and transmitting the additional multi-cast service data packet to the second mobile terminal. [Reference numerals] (511) Receiving multicast service data packet; (513) Decoding successful?; (515,521) Reached the maximum number of retransmission?; (517) Determining reception failure; (519) Transmitting an NACK signal; (523) Standby for receiving the NACK signal; (525) NACK signal received?; (527) Transmitting additional multicast service data packet; (AA) Start; (BB,DD,GG,JJ) No; (CC,EE,FF,II) Yes; (HH,KK) End

Abstract translation: 一种在能够支持混合自动重传请求（HARQ）方法的设备到设备（D2D）无线通信系统中使用移动终端提供多播服务的方法，包括以下步骤：从一个多播服务数据包 基站或第一移动终端，其至少是与移动终端相同的多播服务组中包括的移动终端中的另一个移动终端; 从第二移动终端接收否定确认信号（NACK），所述第二移动终端至少是与所述多播服务的解码相同的多播服务组中的移动终端中的第一移动终端之外的另一终端 数据包成功，重发次数达不到最大重传次数; 当解码的多播服务数据分组是解码的多播服务数据分组是时，使用与从基站接收的应用于多播服务数据分组的MCS级别不同的调制和编码方案（MSC）级别生成附加的多播服务数据分组 从基站接收的多播服务数据分组; 以及将所述附加多播服务数据分组发送到所述第二移动终端。 （附图标记）（511）接收组播业务数据包; （513）解码成功？ （515,521）达到最大重传次数？ （517）确定接收失败; （519）发送NACK信号; （523）用于接收NACK信号的待机; （525）NACK信号接收？ （527）发送附加的多播服务数据包; （AA）开始; （BB，DD，GG，JJ）否; （CC，EE，FF，II）是; （HH，KK）结束

公开(公告)号：KR101273358B1

公开(公告)日：2013-06-12

申请号：KR1020110052145

申请日：2011-05-31

Applicant: 한국항공대학교산학협력단

Inventor： 정영호 ,  한기석 ,  이창목

IPC: H04N7/015 ,  H04H20/02 ,  H04B7/26 ,  H04L27/26

Abstract: 본원은 통신 시스템에서 방송 신호를 송신하는 방법에 있어서, 제1송신 방식을 사용하여 기본 입력 신호를 일정 단위 시간만큼 지연시켜 지연 신호로생성하는 과정과, 제2송신 방식을 사용하여 화질 개선 입력 신호를 시공간 블록 코딩(STBC: Space Time Block Coding)시켜 2개의 STBC 신호로 생성하는 과정과, 상기 기본 입력 신호와 상기 지연 신호 및 상기 2개의 STBC 신호를 사용하여 생성한 제1신호 및 제2신호를 2개의 송신 안테나를 사용하여 송신하는 과정을 포함한다.

Abstract translation: 目的：提供一种在通信系统及其设备中收发下一代地面波数字多媒体信号的方法，用于收发AT-DMB（高级地面数字媒体广播）信号，同时保持T-DMB（地面数字多媒体 广播）表演。 构成：第一信号生成单元使用第一发送方法生成作为第一信号的输入信号。 第二信号生成单元包括STBC（空时块编码）单元（402）和导频信号插入单元（404）。 第二信号生成单元使用第二发送方法生成输入信号作为第二信号。 第一和第二信号中的每一个包括AT-DMB信号。 发送单元通过使用两个发送天线发送第一和第二信号。 AT-DMB信号包括用于区分接收第二信号的信道的导频信号。 （附图标记）（402）STBC单元; （404）导频信号插入单元; （406）延期单位; （412a）分层调制单元1; （412b）分层调制单元2; （414a）RF调制单元; （414b）RF调制单元; （AA，CC）RSS插入单元; （BB，DD）OFDM调制单元

公开(公告)号：KR1020120133488A

公开(公告)日：2012-12-11

申请号：KR1020110052145

申请日：2011-05-31

Applicant: 한국항공대학교산학협력단

Inventor： 정영호 ,  한기석 ,  이창목

IPC: H04N7/015 ,  H04H20/02 ,  H04B7/26 ,  H04L27/26

CPC classification number: H04N7/015 ,  H04B7/0671 ,  H04H20/02 ,  H04L1/0618 ,  H04L27/261 ,  H04N7/01

Abstract: PURPOSE: A method for transceiving a next generation ground-wave digital multimedia signal in a communication system and a device thereof are provided to transceive an AT-DMB(advanced terrestrial-Digital Media Broadcasting) signal while maintaining T-DMB(terrestrial-Digital Multimedia Broadcasting) performance. CONSTITUTION: A first signal generating unit generates an input signal as a first signal by using a first transmitting method. A second signal generating unit includes an STBC(space-time block coding) unit(402) and a pilot signal inserting unit(404). The second signal generating unit generates the input signal as a second signal by using a second transmitting method. Each of the first and the second signals includes an AT-DMB signal. A transmitting unit transmits the first and the second signals by using two transmitting antennas. The AT-DMB signal includes a pilot signal for distinguishing a channel which receives the second signal. [Reference numerals] (402) STBC unit; (404) Pilot signal inserting unit; (406) Delaying unit; (412a) Hierarchical modulation unit 1; (412b) Hierarchical modulation unit 2; (414a) RF modulation unit; (414b) RF modulation unit; (AA,CC) RSS inserting unit; (BB,DD) OFDM modulation unit

Abstract translation: 目的：提供一种在通信系统及其设备中收发下一代地面波数字多媒体信号的方法，用于收发AT-DMB（高级地面数字媒体广播）信号，同时保持T-DMB（地面数字多媒体 广播）表演。 构成：第一信号生成单元使用第一发送方法生成作为第一信号的输入信号。 第二信号生成单元包括STBC（空时块编码）单元（402）和导频信号插入单元（404）。 第二信号生成单元使用第二发送方法生成输入信号作为第二信号。 第一和第二信号中的每一个包括AT-DMB信号。 发送单元通过使用两个发送天线发送第一和第二信号。 AT-DMB信号包括用于区分接收第二信号的信道的导频信号。 （附图标记）（402）STBC单元; （404）导频信号插入单元; （406）延期单位; （412a）分层调制单元1; （412b）分层调制单元2; （414a）RF调制单元; （414b）RF调制单元; （AA，CC）RSS插入单元; （BB，DD）OFDM调制单元

公开(公告)号：KR1020120094720A

公开(公告)日：2012-08-27

申请号：KR1020110014159

申请日：2011-02-17

Applicant: 삼성전자주식회사 ,  한국항공대학교산학협력단

Inventor： 이흔철 ,  클럭스브루노 ,  정영호

IPC: H04L1/16 ,  H04J11/00 ,  H04B7/26

CPC classification number: H04W72/0406 ,  H04L1/1861 ,  H04L1/1864 ,  H04L5/001 ,  H04L5/0055

Abstract: PURPOSE: A method for allocating an uplink feedback channel for feeding back ACK/NACK of data packets corresponding to an enhanced physical downlink control channel and an apparatus thereof are provided to reduce the overhead of an up-link feedback channel by feed backing information of decoding data packets. CONSTITUTION: An up-link feedback channel is obtained. An up-link feedback channel includes a resource area which is mapped with each index of CCEs(Control Channel Element) included in two or more different resource allocation control channels. A base station assigns information related to the decoding success of a data packet to the resource area of the up-link feedback channel. The control information about transmitted data packet is mapped with a transmitted CCE combination. The information related to the decoding success of the data packet is fed back to the base station using the resource area of the up-link feedback channel.

Abstract translation: 目的：提供一种用于分配用于反馈对应于增强物理下行链路控制信道的数据分组的ACK / NACK的上行链路反馈信道及其装置的方法，以通过解码的馈送信息减少上行链路反馈信道的开销 数据包。 规定：获得上链路反馈通道。 上行链路反馈信道包括与包括在两个或更多个不同资源分配控制信道中的CCE（控制信道元素）的每个索引进行映射的资源区域。 基站将与数据分组的解码成功有关的信息分配给上行链路反馈信道的资源区域。 发送的数据包的控制信息与发送的CCE组合进行映射。 与数据分组的解码成功有关的信息使用上行反馈信道的资源区域反馈给基站。

公开(公告)号：KR1020100112286A

公开(公告)日：2010-10-19

申请号：KR1020090030722

申请日：2009-04-09

Applicant: 삼성전자주식회사 ,  한국항공대학교산학협력단

Inventor： 이상민 ,  이주미 ,  김영수 ,  정영호

IPC: H04L1/18 ,  H04B7/26 ,  H04W72/04

CPC classification number: H04W72/0453 ,  H04L1/18 ,  H04W72/04 ,  H04W72/044

Abstract: PURPOSE: A communication system supporting a plurality of bandwidths and a feedback resource allocating method thereof are provided to reduce the overhead of the control message by identifying the ACK/NACK feedback resources corresponding to each transmission data channel without the additional information for the position of ACK/NACK feedback resource. CONSTITUTION: The feed back channel signal for a first bandwidth is mapped to the resource of the control area in a subframe which is distinguished as the control areas(410a, 410b) and the data area(420a, 420b). A feedback channel signal of a second bandwidth is mapped into the resource of the data area.

Abstract translation: 目的：提供支持多个带宽的通信系统及其反馈资源分配方法，以通过识别与每个传输数据信道相对应的ACK / NACK反馈资源来减少控制消息的开销，而不需要ACK的位置的附加信息 / NACK反馈资源。 构成：将第一带宽的反馈信道信号映射到区分为控制区域（410a，410b）和数据区域（420a，420b）的子帧中的控制区域的资源。 将第二带宽的反馈信道信号映射到数据区的资源。

公开(公告)号：KR1020100103315A

公开(公告)日：2010-09-27

申请号：KR1020090021891

申请日：2009-03-13

Applicant: 한국항공대학교산학협력단

Inventor： 정영호 ,  김병건

IPC: H04B7/04 ,  H04L1/12

CPC classification number: H04B7/0623 ,  H04L1/1692 ,  H04L1/18 ,  H04L12/1868

Abstract: PURPOSE: A method and a device for transmitting/receiving feedback information in a communication system using a plurality of antennas are provided to use a common feedback channel way and can reduce the feedback frequency resource used in a multicast transmission, thereby largely improving the performance according to the increase of the number of user terminal in corresponding cell. CONSTITUTION: Data packet is received from a base station(210) through a down link multicast transmission channel. The data packet is decoded and whether decoding of the data packet is successful or not is checked. If the decoding of the data packet is failed after checking the result, it generates NACK signal which shows failure of decoding the data packet by using series of the same numbers with the antenna numbers. The NACK signal is transmitted to the base station through a common feedback channel. The generated series each has orthogonality between each other, and comprises a sequence signal.

Abstract translation: 目的：提供一种在使用多个天线的通信系统中发送/接收反馈信息的方法和装置，以使用公共反馈信道方式，并且可以减少组播传输中使用的反馈频率资源，从而大大提高性能 增加相应小区中用户终端的数量。 构成：通过下行链路多播传输信道从基站（210）接收数据分组。 数据分组被解码，并且数据分组的解码是否成功被检查。 如果在检查结果之后数据分组的解码失败，则生成NACK信号，其通过使用与天线编号相同数量的序列来解码数据分组的故障。 NACK信号通过公共反馈信道发送到基站。 所生成的序列各自具有彼此之间的正交性，并且包括序列信号。

公开(公告)号：KR1020100003023A

公开(公告)日：2010-01-07

申请号：KR1020080063111

申请日：2008-06-30

Applicant: 한국항공대학교산학협력단

Inventor： 정영호

IPC: H04L27/26 ,  H04L29/06

CPC classification number: H04L27/2636 ,  H04B7/155 ,  H04B7/2606 ,  H04L27/2649

Abstract: PURPOSE: An apparatus and method for transmitting/receiving/realying signal in a communication system using an orthogonal double frequency division multiplexing/double orthogonal frequency division multiple access scheme are provided to prevent the ICI generation due to the delay of the case of using the broadband spectrum. CONSTITUTION: The row wised OFDM (Orthogonal Frequency Division Multiplexing) block generates the subsample according to the subcarrier to the row wised OFDM method to the first signal. The column wised OFDM block generates the first signal which becomes according to subcarrier to the column wised OFDM method to the second signal. The transmission unit(221) transmits a message the second signal to the signal receiver.

Abstract translation: 目的：提供一种使用正交双频分频复用/双正交频分多址方案在通信系统中发送/接收/实现信号的装置和方法，以防止由于使用宽带的情况的延迟而产生ICI 光谱。 构成：行（OFDM）正交频分多路复用块根据与第W个OFDM方法的副载波相对应的第一个信号产生子采样。 该列获得的OFDM块产生根据与第二信号的列加法OFDM方法的子载波成为第一信号。 发送单元（221）将第二信号的消息发送到信号接收器。

公开(公告)号：KR102234470B1

公开(公告)日：2021-04-01

申请号：KR1020170030410

申请日：2017-03-10

Applicant: 한국전자통신연구원

Inventor： 정영호 ,  백승권 ,  이태진 ,  최진수

IPC: H04N21/2368 ,  H04N21/434 ,  H04N21/81

Abstract: 컨텐츠처리방법이실시된다. 본발명의일실시예에따른컨텐츠처리방법은방송데이터및 부가정보가삽입된광고데이터가포함된컨텐츠를수신하는단계; 상기광고데이터에서상기부가정보를추출하는단계; 상기추출한부가정보를이용하여컨텐츠에서광고데이터를식별하는단계; 상기컨텐츠에서식별된광고데이터를제외한나머지방송데이터를추출하는단계를포함하고, 상기부가정보는, 상기광고데이터에대한오디오신호의복수의분석구간들에삽입된테스트용부가정보에의해결정되는적어도하나의최적구간들에삽입될수 있다.

公开(公告)号：KR102049907B1

公开(公告)日：2019-11-28

申请号：KR1020190027761

申请日：2019-03-11

Applicant: 한국전자통신연구원 ,  연세대학교 원주산학협력단

Inventor： 김창기 ,  김태정 ,  유정주 ,  정영호 ,  홍진우 ,  서광덕 ,  이홍래

IPC: H04N21/8547 ,  H04N21/236 ,  H04N21/242 ,  H04N21/434 ,  H04N21/43