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公开(公告)号：KR1020160043897A
公开(公告)日：2016-04-22
申请号：KR1020150131173
申请日：2015-09-16
Applicant: 한국전자통신연구원
Abstract: 매시브 MIMO(massive Multiple Input Multiple Output) 시스템에서기지국이상기기지국의주변단말들에게공통적으로필요한공통신호를생성하는방법이제공된다. 상기기지국은, 상기주변단말들에게공통적으로필요한데이터를생성한다. 상기기지국은, 시간도메인과주파수도메인에서크기가일정한 TCA(time-domain constant amplitude)-FCA(frequency-domain constant amplitude) 시퀀스를이용해, 복수의빔 형성벡터를생성한다. 그리고상기기지국은, 상기데이터에상기복수의빔 형성벡터를곱하여, 상기공통신호에대응하는복수의안테나스트림을생성한다.
Abstract translation: 提供了一种用于在大规模多输入多输出（MIMO）系统中生成基站周围的终端所共同需要的公共信号的基站的方法。 基站生成基站周围的终端通常需要的数据。 基站通过使用时域和频域中具有恒定幅度的时域恒定幅度（TCA） - 频域恒定幅度（FCA）序列来生成多个波束形成向量。 基站通过将数据乘以多个波束形成向量来生成与公共信号对应的多个天线流。
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公开(公告)号：KR1020140095443A
公开(公告)日：2014-08-01
申请号：KR1020140008794
申请日：2014-01-24
Applicant: 한국전자통신연구원
IPC: H04W52/42
Abstract: Disclosed are a method for transmitting and receiving data using a multiple antenna and an apparatus thereof. A method for receiving a packet includes the steps of: determining a reception section of the packet based on a channel link of a receiving terminal and a channel link of a transmitting terminal; receiving the packet transmitted from the transmitting terminal in a receiving section; and transiting the data to a sleep mode after a new section. Therefore, a wireless resource is efficiently used.
Abstract translation: 公开了一种使用多重天线发送和接收数据的方法及其装置。 接收分组的方法包括以下步骤：基于接收终端的信道链路和发送终端的信道链路来确定分组的接收部分; 在接收部分接收从发送终端发送的分组; 并在新的部分之后将数据转移到睡眠模式。 因此，有效地使用无线资源。
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33.发明公开
公开(公告)号：KR1020130034569A
公开(公告)日：2013-04-05
申请号：KR1020120035225
申请日：2012-04-05
Applicant: 한국전자통신연구원
CPC classification number: H04L1/004 , H04L1/0084 , H04L1/1812
Abstract: PURPOSE: A XOR- calculation FEC(Forward Error Correction) for a burst data loss recovery and an unequal error protection method having a HARQ(Hybrid Automatic Repeat request) are provided to effectively recover the burst loss without extending the transmission bandwidth. CONSTITUTION: A forward loss protection packet is produced through an XOR calculation of a base layer packet of a current GoP(Group of Picture) and the base layer packet of the previous 2nth GoP(S10). The forward loss protection packet is added to the last packet of the previous nth GoP(S20). A backward loss protection packet is produced through the XOR calculation of the base layer packet of the current GoP and the base layer packet of the afterward 2nth GoP(S30). The backward loss protection packet is added to the last packet of the afterward nth GoP(S40). [Reference numerals] (AA) Start; (BB) End; (S10) Generating a forward loss protection packet(current GoP base layer packet(XOR) and previous 2n-th GoP base layer packet); (S20) Adding the forward loss protection packet to the last packet of the previous n-th GoP; (S30) Generating a backward loss protection packet(current GoP base layer packet(XOR) and afterward 2n-th GoP base layer packet); (S40) Adding the backward loss protection packet to the last packet of the afterward n-th GoP;
Abstract translation: 目的：提供用于突发数据丢失恢复的异或计算FEC（前向纠错）和具有HARQ（混合自动重传请求）的不等错误保护方法，以有效地恢复突发丢失而不扩展传输带宽。 构成：通过对当前GoP（图像组）的基本层分组和先前的第2n个GoP（S10）的基本层分组的XOR计算产生转发损失保护分组。 前向丢失保护分组被加到前一个第n个GoP的最后一个分组（S20）。 通过当前GoP的基本层分组的XOR计算和后来的第2n个GoP的基本层分组产生后向丢失保护分组（S30）。 向后丢失保护分组被加到第n个GoP的最后一个分组（S40）。 （附图标记）（AA）开始; （BB）结束; （S10）生成前向丢失保护分组（当前GoP基本层分组（XOR）和先前的第2n个GoP基本层分组）; （S20）将前向丢失保护分组添加到前一个第n个GoP的最后一个分组; （S30）生成后向丢失保护分组（当前GoP基本层分组（XOR）和之后的第2n个GoP基本分组分组）; （S40）将后向丢失保护分组添加到后面的第n个GoP的最后一个分组;
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公开(公告)号：KR1020120011774A
公开(公告)日：2012-02-08
申请号：KR1020110044421
申请日：2011-05-12
Applicant: 한국전자통신연구원
IPC: H04L12/811 , H04W28/14 , H04N21/63 , H04N21/262
CPC classification number: H04N7/26228 , H04B1/38 , H04L47/14 , H04L47/25 , H04L49/90 , H04N7/08 , H04N19/164 , H04N21/234327 , H04N21/2401 , H04N21/2402 , H04N21/262 , H04N21/631 , H04N21/6377 , H04N21/8451 , H04W28/14 , H04W72/044
Abstract: PURPOSE: A data transmission scheduling method is provided to maximally increase service quality and user know-how by efficiently using wireless resources. CONSTITUTION: A data receiving device presumes a channel state from a data transmitting device to a data receiving device(410). The data receiving device sets a plurality of buffers to have optimum states for buffers based on the channel state wherein data transmitted from the data transmitting device are buffered(420). The data receiving device controls transmission of each data based on the channel state to maintain the optimum states of the buffers(430,440). The optimum states are a ratio of time for which video information included in the buffered data is reproduced.
Abstract translation: 目的：提供数据传输调度方法，通过有效利用无线资源，最大限度地提高服务质量和用户诀窍。 构成：数据接收装置假定从数据发送装置到数据接收装置的信道状态（410）。 数据接收装置基于缓冲从数据发送装置发送的数据的信道状态，设定多个缓冲器以具有用于缓冲器的最佳状态（420）。 数据接收装置根据信道状态控制每个数据的传输，以保持缓冲器的最佳状态（430,440）。 最佳状态是再现包含在缓冲数据中的视频信息的时间比。
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公开(公告)号：KR1020110097680A
公开(公告)日：2011-08-31
申请号：KR1020110015887
申请日：2011-02-23
Applicant: 한국전자통신연구원
IPC: H04B7/04
CPC classification number: H04B7/0413 , H04B7/0689 , H04B7/0871
Abstract: 다중 안테나를 이용하여 데이터를 전송하는 송신기는 데이터를 다중 표현 부호화하여 복수의 표현 데이터를 생성하는 다중 표현 부호부, 그리고 복수의 표현 데이터를 채널 부호화하고, 채널 부호화한 표현 데이터를 다중 안테나를 통해 전송하는 다중 입출력 전송부를 포함한다. 적어도 하나의 안테나를 이용하여 송신기로부터 전송된 신호를 수신하는 수신기는 수신 신호를 기초로 적어도 하나의 안테나에 대응하는 채널을 추정하는 채널 추정부, 채널 추정 값에 기초하여, 수신 신호에 피드백 정보를 적용한 입력 신호를 다중 입출력 복호하여 복수의 제1 복호 정보를 생성하는 다중 입출력 복호부, 복수의 제1 복호 정보를 각각 채널 복호하고, 채널 복호의 결과로 피드백 정보를 생성하는 과정을 일정 횟수 반복한 후에, 복수의 제1 복호 정보를 각각 채널 복호하여 복수의 제2 복호 정보를 생성하는 반복 복호부, 그리고 복수의 제2 복호 정보를 다중 표현 복호하는 다중 표현 복호부를 포함한다.
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Patent Agency Ranking
公开(公告)号：KR1020110093696A
公开(公告)日：2011-08-18
申请号：KR1020110011883
申请日：2011-02-10
Applicant: 한국전자통신연구원
Abstract: PURPOSE: A layered transmitting device and a method thereof and a receiving device and a receiving method are provided to simultaneously calculate the symbol metric of all layers from a received signal by increasing a hierarchy number for simultaneously transmitting. CONSTITUTION: A plurality of sign units(110) respectively corresponds with a plurality of layers. The plurality of sign units generates code bits by encoding the information bits of corresponding layers. A plurality of symbol interleaving units(130) respectively corresponds with a plurality of the sign units. The symbol interleaving unit generates an interleaved symbol by interleaving the code bits of the corresponding sign units with the symbols. A modulating unit(150) classifies the plurality of layers into a plurality of the layer groups. The modulating unit generates the modulated symbol of each layer group by modulating a plurality of the interleaved symbols corresponding to each layer group. Gain controlling units(171,172) control the gain of the modulated symbols by the layer groups. A combining unit(190) generates a transmission symbol by combining the modulated symbols, which controls the gain, of the plurality of the layer groups.
Abstract translation: 目的：提供分层发送装置及其方法以及接收装置和接收方法，以通过增加用于同时发送的层次号来从接收信号同时计算所有层的符号度量。 构成：多个符号单元（110）分别对应于多个层。 多个符号单元通过对相应层的信息位进行编码来生成代码位。 多个符号交织单元（130）分别对应于多个符号单元。 符号交织单元通过用符号交织对应符号单元的码位来生成交织符号。 调制单元（150）将多个层分成多个层组。 调制单元通过调制对应于每个层组的多个交织符号来生成每个层组的调制符号。 增益控制单元（171,172）通过层组控制调制符号的增益。 组合单元（190）通过组合控制多个层组的增益的调制符号来生成传输符号。
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公开(公告)号：KR1020110093695A
公开(公告)日：2011-08-18
申请号：KR1020110011882
申请日：2011-02-10
Applicant: 한국전자통신연구원
Abstract: PURPOSE: A receiving device and method for hierarchical modulation is provided to decode higher layer information based on lower layer decoding information, thereby reducing interference between layers. CONSTITUTION: A phase compensation part(210) transfers a phase compensated signal to a basic layer decoding part(230) by compensating the phase of a received signal. The basic layer decoding part decodes an information bit of the basic layer among several layers. The basic layer decoding part calculates a bit metric including code bit information of the basic layer based on the phase compensated signal. An enhancement layer decoding part(250) successively decodes an information bit of the enhancement layer which is a higher layer of the basic layer based on a decoding result of a lower layer.
Abstract translation: 目的：提供一种用于分级调制的接收装置和方法，用于基于较低层解码信息解码较高层信息，从而减少层之间的干扰。 构成：相位补偿部（210）通过补偿接收信号的相位将相位补偿信号传送到基本层解码部（230）。 基本层解码部分解码几层中的基本层的信息位。 基本层解码部分基于相位补偿信号来计算包括基本层的码位信息的比特度量。 增强层解码部（250）基于下层的解码结果，连续解码作为基层的较高层的增强层的信息比特。
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公开(公告)号：KR1020110093694A
公开(公告)日：2011-08-18
申请号：KR1020110011881
申请日：2011-02-10
Applicant: 한국전자통신연구원
Abstract: PURPOSE: A layer transmitting device and a receiving device and receiving method are provided to perform decode process for each layer after estimating symbol metrics of all layers from a received signal, thereby reducing interferences between the layers. CONSTITUTION: A plurality of sign parts(110) respectively corresponds to a plurality of layers. The sign part generates a code bit by encoding an information bit corresponding to a layer. A plurality of bit interleaving parts(130) respectively corresponds to the code bit. An interleaved bit is created by bit-interleaving the corresponding code bit. A modulation part(150) classifies a plurality of layers into a plurality of layer groups. The modulation part creates a modulation symbol for each layer group by modulating a plurality of interleaved bits corresponding to each layer group. A gain control part(171,172) controls a gain of the modulation symbol by a layer group. A combine part(190) creates a transmission symbol by combining the modulation symbol.
Abstract translation: 目的：提供层发送装置和接收装置及接收方法，用于在从接收到的信号估计所有层的符号度量之后对每层进行解码处理，从而减少层之间的干扰。 构成：多个符号部分（110）分别对应于多个层。 符号部分通过对与层相对应的信息位进行编码来生成代码位。 多个比特交织部分（130）分别对应于码比特。 通过对相应的代码位进行位交织来产生交织位。 调制部分（150）将多个层分成多个层组。 调制部分通过调制与每个层组相对应的多个交错比特来为每个层组创建调制符号。 增益控制部分（171,172）通过层组控制调制符号的增益。 组合部分（190）通过组合调制符号来产生传输符号。
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公开(公告)号：KR100461543B1
公开(公告)日：2004-12-16
申请号：KR1020020062484
申请日：2002-10-14
Applicant: 한국전자통신연구원
CPC classification number: H04B7/0669 , H04J13/004
Abstract: A Signal-to-interference ratio (SIR) measuring apparatus in a multiple antenna high data rate packet transmission system measures signal energy to interference energy ratio by using pilot signals that are orthogonal to each other between antennas signals and used by a receiver for separating the signals transmitted from all of the transmitting antennas from each other. The SIR measuring apparatus comprises a signal energy measuring unit, an interference energy measuring unit and a SIR measuring unit. The signal energy measuring unit measures signal energy by synthesizing after coherently integrating and non-coherently integrating values that are obtained by correlating a received signal with pilot patterns equal to the pilot patterns of transmitted antenna signals, respectively. The interference energy measuring unit measures interference energy by coherently integrating and non-coherently integrating after correlating the received signal with another pattern that is orthogonal to the pilot patterns of the transmitted antenna signals but is not transmitted. The SIR measuring unit measures SIR by using the measured signal energy and the measured interference energy.
Abstract translation: 多天线高数据速率分组传输系统中的信号干扰比（SIR）测量设备通过使用在天线信号之间彼此正交的导频信号来测量信号能量干扰能量比，并由接收器用于分离 从所有发射天线彼此发射的信号。 SIR测量装置包括信号能量测量单元，干扰能量测量单元和SIR测量单元。 信号能量测量单元通过在相干积分和非相干积分之后进行合成来测量信号能量，所述积分值通过将接收信号与导频模式分别相等于所发送的天线信号的导频模式相关而获得。 干扰能量测量单元在将接收信号与正交于发射天线信号的导频模式但未发射的另一模式相关后，通过相干积分和非相干积分来测量干扰能量。 SIR测量单元通过使用测量的信号能量和测量的干扰能量来测量SIR。
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公开(公告)号：KR100319751B1
公开(公告)日：2002-01-05
申请号：KR1020000006988
申请日：2000-02-15
Applicant: 한국전자통신연구원
IPC: H04B1/76
Abstract: 1. 청구 범위에 기재된 발명이 속한 기술분야
공간-시간 다이버시티 수신기용 채널 예측장치 및 그 방법.
2. 발명이 해결하려고 하는 기술적 과제
공간-시간 다이버시티 수신기에서 안테나별 파일럿 패턴의 직교성 잡음을 해결하고 지연을 적게 함으로써, 채널 예측 성능을 개선하고자 함.
3. 발명의 해결방법의 요지
프레임 시작신호를 발생하는 수단; 각 안테나에 대응되는 I채널 및 Q채널 처리수단을 포함하되, 상기 각 채널 처리수단은, 입력되는 신호를 칩 단위 클럭에 따라 적분하는 제1 적분수단; 심볼 단위 클럭에 동기되어 파일럿 패턴을 발생하는 수단; 상기 제1 적분수단의 출력을 심볼 단위 클럭으로 입력받아 상기 파일럿 패턴과 혼합하는 수단; 상기 혼합수단의 출력을 심볼 단위 클럭에 따라 적분하는 제2 적분수단; 및 상기 제2 적분수단의 출력을 누적된 이전 값과 가산하여, 각 채널에 대한 위상 왜곡 예측값을 출력하는 가산 및 누적수단을 포함한다.
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