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公开(公告)号：KR1020090042109A
公开(公告)日：2009-04-29
申请号：KR1020070108027
申请日：2007-10-25
IPC: H04B7/26
CPC classification number: H04W16/14 , H04L27/2607 , H04L27/2647 , H04L27/2691
Abstract: A device for determining interference by using a cyclic prefix and a method thereof are provided to determine interference occurring between the first and second networks by an interference determination unit, thereby preventing collision of a network signal. A signal receiving unit(310) receives the first signal of the first network and the second signal of the second network. A correlator(320) calculates a correlation value of the first cyclic prefix included in the first signal and a correlation value of the second cyclic prefix included in the second signal. An interference determining unit(330) determines whether interference occurs between the first network and the second network by using the correlation value of the first cyclic prefix and the correlation value of the second cyclic prefix. The interference determining unit determines an interference level.
Abstract translation: 提供一种通过使用循环前缀来确定干扰的装置及其方法，以通过干扰确定单元确定在第一和第二网络之间发生的干扰，从而防止网络信号的冲突。 信号接收单元（310）接收第一网络的第一信号和第二网络的第二信号。 相关器（320）计算第一信号中包括的第一循环前缀的相关值和包括在第二信号中的第二循环前缀的相关值。 干扰确定单元（330）通过使用第一循环前缀的相关值和第二循环前缀的相关值来确定是否在第一网络和第二网络之间发生干扰。 干扰确定单元确定干扰电平。
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公开(公告)号：KR100827547B1
公开(公告)日：2008-05-07
申请号：KR1020070022345
申请日：2007-03-07
Applicant: 한국과학기술원
CPC classification number: H04L27/2655 , H04L7/0079 , H04L7/02
Abstract: A method and an apparatus for coarse frequency synchronization in an OFDM receiver are provided to vary a correlation length adaptively according to an SNR(Signal-to-Noise Ration). A method for coarse frequency synchronization in an OFDM receiver comprises the following steps of: estimating an SNR of a received signal including a symbol; shifting the symbol cyclically for a certain shift amount; determining a length of a partial correlation section corresponding to the estimated SNR, calculating a partial correlation value between the shifted symbol in each partial correlation section and a predetermined phase reference symbol, and summing the values; and obtaining the shift amount as a coarse frequency error when the sum of the partial correlation values is maximum.
Abstract translation: 提供了OFDM接收机中的粗略频率同步的方法和装置，以根据SNR（信噪比）自适应地改变相关长度。 OFDM接收机中的粗略频率同步的方法包括以下步骤：估计包括符号的接收信号的SNR; 循环移动符号一定的移位量; 确定与估计的SNR对应的部分相关部分的长度，计算每个部分相关部分中的移位符号与预定相位参考符号之间的部分相关值，并对该值求和; 并且当部分相关值的和为最大时，获得作为粗略频率误差的偏移量。
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公开(公告)号：KR101910008B1
公开(公告)日：2018-12-19
申请号：KR1020120125620
申请日：2012-11-07
Abstract: 본 발명의 일 실시 예에 따르는 무선통신 시스템의 기지국에서 데이터를 송수신하는 방법은 단말이 측정한 간섭 관련 정보를 수신하는 단계; 상기 수신한 간섭 관련 정보를 기반으로 상기 단말에 하향링크 자원 할당을 하는 단계; 상기 하향링크 자원 할당의 서브밴드 별 송신 전력 분포를 결정하는 단계; 및 상기 결정된 하향링크 자원 할당의 서브밴드 별 송신 전력 분포를 인접한 기지국에 전송하는 단계를 포함한다. 본 발명의 일 실시 예에 따르면 기지국은 인접한 기지국에 파워 할당 유형의 정보를 교환함으로써 보다 적은 비트 수의 정보를 통해서 보다 정확한 간섭 관리가 가능한 효과가 있다. 또한 제안한 발명의 경우 파워 할당 정보의 유형을 유동적으로 제안할 수 있음에 따라 간섭 정보를 전달할 수 있는 비트 수를 유동적으로 조절할 수 있는 효과가 있다. 또한 소형 기지국들이 무선 백홀을 통해 간섭 관리가 이루어지는 상황에서도 간섭 관리를 위한 정보의 양을 줄일 수 있으므로 오버헤드를 줄일 수 있는 효과가 있다. 또한 소형 기지국(Home NodeB)와 마크로 기지국 사이에 간섭 정보 교환에 있어서도 오버헤드가 줄어드는 효과가 있다.
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公开(公告)号：KR101576915B1
公开(公告)日：2015-12-14
申请号：KR1020090131551
申请日：2009-12-28
IPC: H04W16/28
CPC classification number: H04B7/024
Abstract: 협력멀티포인트(Cooperative Multi-Point: CoMP) 송/수신에참여하는둘 이상의기지국들및 대상단말을포함하는적어도하나의단말을위한통신방법이제공된다. 그통신방법은대상단말의안테나들중 어느하나인대상안테나에대한신호대 유출플러스잡음비(Signal to Leakage plus Noise Ratio: SLNR)가극대화될수 있도록, 상기채널벡터들및 상기적어도하나의채널매트릭스를기초로상기둘 이상의기지국들에의해사용되는빔포밍벡터를결정한다. 이때, 통신방법은촐레스키분해를사용하여낮은복잡도로최적의빔포밍벡터를결정할수 있다.
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公开(公告)号：KR1020150055260A
公开(公告)日：2015-05-21
申请号：KR1020130137363
申请日：2013-11-13
Applicant: 한국과학기술원
Abstract: 본발명은분산형수색레이더환경에서획득한데이터간의시간동기화방법에 관한것으로서, 보다상세하게는다수의레이더또는레이더를모사하는시뮬레이터로부터관측데이터를입력받고, 시간이동을통한동기화, 선형보간법을이용한동기화및 평균제곱오차를최소화하는시간지연추정을이용한동기화를함으로써, 전장에서요구되는정밀위치추적이가능한분산형수색레이더환경에서획득한데이터간의시간동기화방법을제공한다.
Abstract translation: 本发明涉及分布式搜索雷达环境中的数据的同步方法，通过该数据从多个雷达馈送观测数据，或者通过时间偏移同步，并且使用线性插值方法进行同步，并且使用时间同步 延迟以最小化均方误差。 因此，本发明能够在战场中需要精确的跟踪。 因此，有效地实现了分布式雷达环境，并且通过数据融合执行了战场中所需的准确跟踪。
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Patent Agency Ranking
公开(公告)号：KR1020150055248A
公开(公告)日：2015-05-21
申请号：KR1020130137342
申请日：2013-11-13
Applicant: 한국과학기술원
IPC: G01S13/66
Abstract: 본발명은불편추정량데이터융합기법을이용한전술객체위치추적방법에관한것으로서, 보다상세하게는다수의레이더또는레이더를모사하는시뮬레이터로부터관측데이터를입력받고, 칼만필터를이용하여위치를추적하며, 거리를고려한불편추정량데이터융합기법을이용하여데이터를융합함으로써, 전술객체의위치표현및 추적에적용가능한불편추정량데이터융합기법을이용한전술객체위치추적방법을제공한다.
Abstract translation: 本发明涉及使用无偏差数据融合方法跟踪战术对象的位置的方法，更具体地说，提供了使用能够应用的无偏差数据融合方法跟踪战术对象的位置的方法 通过从多个雷达接收观测数据或用于复制雷达的仿真器，通过使用卡尔曼滤波器跟踪该位置，并且通过使用考虑距离的无偏差数据融合方法来融合数据来显示和跟踪战术对象的位置 。 对于上述，该方法包括：用于输入来自多个雷达的观测数据的观测数据输入步骤（S10）或用于复制雷达的模拟器; 跟踪步骤（S20），用于在观测数据输入步骤中通过使用卡尔曼滤波器，基于输入的观测数据跟踪战术对象; 以及数据融合步骤（S30），用于通过融合中心接收在跟踪步骤（S20）中跟踪的数据，并且通过使用考虑与战术对象的距离的无偏差数据融合方法来融合数据。
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公开(公告)号：KR1020140059031A
公开(公告)日：2014-05-15
申请号：KR1020120125620
申请日：2012-11-07
CPC classification number: H04W52/243 , H04W52/346
Abstract: A method to transmit and receive data in a base station in a wireless communication system according to an embodiment of the present invention comprises the following steps of: receiving information on interference measured by a user terminal; allocating a downlink resource to the user terminal based on the received interference information; determining a transmission power distribution of the down link resource allocation for each sub-band; and transmitting the determined transmission power distribution of the downlink resource allocation for each sub-band to an adjacent base station. According to an embodiment of the present invention, a base station can accurately perform interference coordination through information on a small number of bits by exchanging information on a power allocation type with an adjacent base station. Also, the provided method according to the present invention can flexibly adjust the number of bits capable of transmitting interference information by flexibly providing a power allocation information type. Moreover, small base stations can reduce the amount of information for interference coordination although interference coordination is performed using wireless backhaul, thereby reducing overhead. Furthermore, interference information exchange overhead between a small base station (home nodeB) and a micro base station can be reduced.
Abstract translation: 根据本发明的实施例的在无线通信系统中的基站中发送和接收数据的方法包括以下步骤：接收由用户终端测量的干扰信息; 基于所接收的干扰信息向用户终端分配下行链路资源; 确定每个子带的下行链路资源分配的发射功率分布; 以及将所确定的每个子带的下行链路资源分配的发射功率分布发射到相邻基站。 根据本发明的实施例，基站可以通过与相邻基站交换关于功率分配类型的信息，通过关于少量比特的信息来准确地执行干扰协调。 此外，根据本发明的提供的方法可以通过灵活地提供功率分配信息类型来灵活地调整能够发送干扰信息的比特数。 此外，尽管使用无线回程执行干扰协调，小型基站可以减少用于干扰协调的信息量，从而减少开销。 此外，可以减少小型基站（家庭节点B）和微型基站之间的干扰信息交换开销。
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公开(公告)号：KR1020120089904A
公开(公告)日：2012-08-16
申请号：KR1020100131206
申请日：2010-12-21
IPC: H04B7/24
CPC classification number: H04W72/0406 , H04B7/026 , H04W8/186 , H04W52/40 , H04W72/121 , H04B7/24 , H04W84/08
Abstract: PURPOSE: A communication method of a neighbor terminal and a target terminal is provided to supply a signal or interference component to a target terminal using a random access method or a scheduling method and to increase signal quality of a target terminal. CONSTITUTION: A neighbor terminal determines whether to cooperate with one or more target terminals(210). The neighbor terminal receives a cooperative group subscription request from a target terminal(220). The neighbor terminal requests registration to the target terminal(230). The neighbor terminal performs cooperative communication with one or more target terminals based on registration information(270).
Abstract translation: 目的：提供相邻终端和目标终端的通信方法，以使用随机接入方法或调度方式向目标终端提供信号或干扰分量，并提高目标终端的信号质量。 构成：相邻终端确定是否与一个或多个目标终端（210）协作。 相邻终端从目标终端（220）接收协作组订阅请求。 相邻终端向目标终端请求注册（230）。 相邻终端基于登记信息与一个以上的目标终端进行协作通信（270）。
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公开(公告)号：KR1020100024325A
公开(公告)日：2010-03-05
申请号：KR1020080105261
申请日：2008-10-27
Applicant: 한국과학기술원
CPC classification number: G06Q10/02 , G03F7/0037 , G06Q30/0601
Abstract: PURPOSE: A method of an online performance reservation service and an apparatus thereof are provided to offer 3D image information of an arbitrary seat and voice information to a client, thereby offering an optimal performance reservation environment. CONSTITUTION: If a performance reservation service is requested from a client, the performance information is offered to the client (S200,S202). If arbitrary performance place information is selected by the client, seat information of the performance place information is offered(S204,S206). Virtual performance environment information is offered. If a reservation by the virtual performance environment information is confirmed, a performance reservation is completed.
Abstract translation: 目的：提供在线表演预约服务的方法及其装置，以向客户端提供任意座位和语音信息的3D图像信息，从而提供最佳的性能预约环境。 规定：如果从客户端请求了性能预约服务，则向客户端提供性能信息（S200，S202）。 如果客户选择任意演奏场所信息，则提供表演场所信息的座位信息（S204，S206）。 提供虚拟演示环境信息。 如果确认了虚拟演奏环境信息的预约，则表现预约完成。
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公开(公告)号：KR1020090131230A
公开(公告)日：2009-12-28
申请号：KR1020080057099
申请日：2008-06-17
IPC: H03M13/11
CPC classification number: H03M13/356 , H03M13/1102 , H03M13/1148 , H03M13/353 , H04L1/0009 , H04L1/04
Abstract: PURPOSE: An encoding device and a decoding device for a low density parity code are provided to perform an encoding and decoding technique for a low density parity code by generating parity bits and data bits through a low density parity code and a parity check matrix. CONSTITUTION: An information obtaining part(712) obtains state information of at least two frequency bands. A matrix generating part(713) adaptively generates a parity check matrix based on the state information. The parity check matrix includes sub matrixes corresponding to each frequency band. An encoder generates parity bits and data bits through a low density parity code and the parity check matrix. The data bits and the parity bits are transmitted to a decoding device(720) for the low density parity code through a wireless channel.
Abstract translation: 目的：提供一种用于低密度奇偶码的编码装置和解码装置，用于通过低密度奇偶校验码和奇偶校验矩阵产生奇偶校验位和数据比特来执行低密度奇偶校验码的编码和解码技术。 构成：信息获取部（712）获得至少两个频带的状态信息。 矩阵生成部（713）根据状态信息自适应地生成奇偶校验矩阵。 奇偶校验矩阵包括对应于每个频带的子矩阵。 编码器通过低密度奇偶校验码和奇偶校验矩阵产生奇偶校验位和数据位。 通过无线信道将数据比特和奇偶校验比特发送到用于低密度奇偶码的解码装置（720）。
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