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81.发明授权광대역 고주파수 무선 시스템에서 복수 개의 전송 안테나를통한 전송 채널의 선택 방법 및 그 송신기와 수신기 有权用于选择具有多个发射天线的宽带高频无线系统中的最佳发射路径的方法，发射机和接收机
公开(公告)号：KR101134756B1
公开(公告)日：2012-04-13
申请号：KR1020090012757
申请日：2009-02-17
Applicant: 한국전자통신연구원
Abstract: PURPOSE: A method, a transmitter and a receiver for selecting a transmission channel through transmission antennas in a wideband high frequency wireless system are provided to select an antenna which provides the highest transmission rate, thereby maximally keeping a data transmission rate between a transmitter and a receiver. CONSTITUTION: A receiver receives the first channel detection response message(S820). The first channel detection response message includes state information of the first channel by the first antenna. A transmitter transmits a channel detection request message to a receiver through the second antenna(S830). The channel detection request message requests state information of a channel made by the second antenna. The receiver receives the second channel detection response message(S840). A transmission rate calculating unit calculates a data transmission rate through the first and second channels(S850). The transmitter transmits data through the antenna(S860). The antenna is selected based on the calculated data transmission rate.
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公开(公告)号：KR1020110007935A
公开(公告)日：2011-01-25
申请号：KR1020090116691
申请日：2009-11-30
Applicant: 한국전자통신연구원
CPC classification number: H04W28/26 , H04W16/28 , H04W72/082 , H04W72/1231
Abstract: PURPOSE: A network using the special recycling technique and an operating method of the network are provided to assign the same frequency resource and time resource to a communication links, thereby improving the efficiency of wireless resource. CONSTITUTION: A PNC(Piconet Coordinator) reserves a Ttraining(514). If the reservation request of T2 exists, the piconet coordinator searches previously reserved time section T1 for communication device 1/2 transferring/receiving pair(515,516). If existing reservation exits, the PNC searches the T1(517,518). The PNC reserves time section T2 for transferring/receiving pair of communication device3/4(520). If the transmitting/receiving pair interference of a communication device 1/2 is not bigger than a preset level, the PNC permits data communication of transmitting/receiving pair of the communication device 3/4(526).
Abstract translation: 目的：提供使用特殊回收技术的网络和网络的操作方法，为通信链路分配相同的频率资源和时间资源，从而提高无线资源的效率。 规定：PNC（Piconet协调员）保留Ttraining（514）。 如果T2的预留请求存在，则微微网协调器搜索用于通信设备1/2传送/接收对的先前保留的时间段T1（515,516）。 如果现有预订退出，PNC将搜索T1（517,518）。 PNC保留用于传送/接收通信设备对3/4（520）的时间段T2。 如果通信设备1/2的发送/接收对干扰不大于预设电平，则PNC允许通信设备3/4（526）的发送/接收对的数据通信。
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公开(公告)号：KR1020100090933A
公开(公告)日：2010-08-18
申请号：KR1020090010167
申请日：2009-02-09
Applicant: 한국전자통신연구원
Abstract: PURPOSE: An ultra wideband communication system and a frequency efficiency improving method for the same are provided to reduce an error rate of a sequence by improving the environment of AWGN(Additive White Gaussian Noise). CONSTITUTION: A frequency generator(110) generates a frequency signal. A chirp filter(120) divides the bandwidth of a frequency signal into a plurality part to generate a plurality of chirp signals and generate a sequence signal. A transmission unit transmits the sequence signal to an object.
Abstract translation: 目的：提供一种超宽带通信系统及其频率效率改善方法，通过改善AWGN（加性白高斯噪声）的环境来降低序列的误码率。 构成：频率发生器（110）产生频率信号。 啁啾滤波器（120）将频率信号的带宽划分为多个部分以产生多个线性调频脉冲信号并产生序列信号。 发送单元将序列信号发送到对象。
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84.发明授权
公开(公告)号：KR100972297B1
公开(公告)日：2010-07-23
申请号：KR1020080040105
申请日：2008-04-29
Applicant: 한국전자통신연구원
IPC: H04N7/01
CPC classification number: H04L1/0023 , H04L1/0003 , H04L1/0025
Abstract: 본 발명은 가변 비트 해상도 혹은 클락 주파수를 가지는 아날로그 디지털 변환기를 이용한 적응형 변조방식 및 그 장치에 관한 것으로, 수신기로부터 수신한 변조방식에 따라 송신할 데이터를 변조하는 변조부; 상기 수신기로부터 수신한 비트 해상도 혹은 클락 주파수를 이용하여 변조한 데이터를 아날로그 신호로 변환하는 디지털/아날로그 변환부; 및, 상기 아날로그 신호를 무선채널을 통해 수신기로 송신하는 RF 처리부를 포함하는 송신기와 무선채널을 통해 데이터를 수신하는 RF 처리부; 상기 RF 처리부를 통해 수신한 상기 데이터의 신호 대 잡음비(SNR: Signal to Noise Ratio)를 계산하는 신호 대 잡음비 계산부; 및, 계산한 상기 신호 대 잡음비를 이용하여 기설정한 설정 테이블에서 상응하는 변조방식과 비트 해상도를 검색하여 송신기로 송신하는 변조 제어부를 포함하는 수신기를 포함한다.
아날로그 디지털 변환기, 비트 해상도, 적응형 변조, 클락 주파수-
公开(公告)号：KR1020100033929A
公开(公告)日：2010-03-31
申请号：KR1020090086268
申请日：2009-09-14
Applicant: 한국전자통신연구원
CPC classification number: H04W40/244 , H04L67/16 , H04W8/005 , H04W48/08 , H04W48/16
Abstract: PURPOSE: A device for managing device discovery in a wireless system and a method thereof are provided to enable a device to efficiently perform a discovery process and enable multiple devices to perform exact discovery scanning at each sector. CONSTITUTION: A discovery beacon generator(1110) generates a discovery beacon with information of a discovery scanning section. A transmitter(1120) transmits the discovery beacon to a neighbor device. A receiver(1130) receives a response message of the discovery beacon in the discovery scanning section from the neighbor device. The discovery beacon includes device control information.
Abstract translation: 目的：提供用于管理无线系统中的设备发现的设备及其方法，以使得设备能够有效地执行发现过程，并使多个设备能够在每个扇区执行精确的发现扫描。 构成：发现信标发生器（1110）生成具有发现扫描部分的信息的发现信标。 发射机（1120）将发现信标发送到相邻设备。 接收机（1130）从相邻设备接收发现扫描部分中的发现信标的响应消息。 发现信标包括设备控制信息。
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Patent Agency Ranking
公开(公告)号：KR1020100030571A
公开(公告)日：2010-03-18
申请号：KR1020090075656
申请日：2009-08-17
Applicant: 한국전자통신연구원
IPC: H04B7/04
CPC classification number: H04B7/061 , H04B7/0619
Abstract: PURPOSE: A transceiving device which switches a transmitting antenna in a transmission antenna multiplexing system and a method thereof are provided to supply a multiplexing gain by transmission antenna switching with lower complexity, thereby improving frequency efficiency. CONSTITUTION: A notice command frame reader(165) confirms whether it is requested to switch a transmission antenna. If the switching of the transmission antenna is requested, an antenna switching unit(115) selects an antenna which is not selected as a transmission antenna. The antenna switching unit switches the selected transmission antenna.
Abstract translation: 目的：提供一种在发送天线多路复用系统中切换发送天线的收发装置及其方法，以便以较低的复杂度通过发送天线切换提供复用增益，从而提高频率效率。 构成：通知命令帧读取器（165）确认是否请求切换发送天线。 如果要求发送天线的切换，则天线切换单元（115）选择未被选择为发送天线的天线。 天线切换单元切换所选择的发射天线。
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公开(公告)号：KR1020100007691A
公开(公告)日：2010-01-22
申请号：KR1020090013777
申请日：2009-02-19
Applicant: 한국전자통신연구원
Abstract: PURPOSE: A data transceiving apparatus and method using a relay device in a wireless communications system based on centralized control type MAC(Media Access Control) are provided to transmit and receive smoothly data by using a relay path through the relay device even in case the condition of a channel is not good, or a direct path on LOS(Line of Sight) between devices is cut off. CONSTITUTION: The channel condition of a communications path with a corresponding device and a communications path through a relay device are determined. According to the channel conditions of the communications paths, one or more paths are selected(S1201). Data is transmitted and received through the selected paths(S1203). In case the selected path is cut off, or channel condition information is lower than a preset threshold value, the other communications path is reselected(S1205,S1207). The data is transmitted and received through the reselected path(1209).
Abstract translation: 目的：提供一种基于集中控制型MAC（媒体访问控制）的无线通信系统中的中继装置的数据收发装置和方法，通过使用通过中继装置的中继路径平滑发送数据，即使在条件 的通道不好，或者设备之间的LOS（视线）的直接路径被切断。 规定：确定通过相应设备的通信路径和通过中继设备的通信路径的信道状况。 根据通信路径的信道条件，选择一个或多个路径（S1201）。 通过选择的路径发送和接收数据（S1203）。 在所选择的路径被切断或信道条件信息低于预设阈值的情况下，重新选择另一通信路径（S1205，S1207）。 通过重选路径（1209）发送和接收数据。
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公开(公告)号：KR100932069B1
公开(公告)日：2009-12-15
申请号：KR1020070132004
申请日：2007-12-17
Applicant: 한국전자통신연구원
Abstract: A distance base controlled beam apparatus and a method thereof at the same time for suing a same channel are provided to reduce the interference with the other user terminal when performing communication between a user terminal and a service providing device. A user terminal is connected to a service providing device(S210). The distance between the service providing device and the user terminal is measured(S220). The user terminal controls the beam width and transmission power with reference to the measured distance information(S230). The user terminal transmits data request message to the service providing device. The data response message is received from the service providing device(S240). The user terminal transmits and receives the service providing device and data(S250).
Abstract translation: 提供了一种基于距离的受控束设备及其同时采用相同频道的方法，以减少在用户终端和服务提供设备之间进行通信时与其他用户终端的干扰。 用户终端连接到服务提供设备（S210）。 测量服务提供设备和用户终端之间的距离（S220）。 用户终端参考测量的距离信息来控制波束宽度和发射功率（S230）。 用户终端向服务提供设备发送数据请求消息。 数据响应消息从服务提供设备接收（S240）。 用户终端发送和接收服务提供设备和数据（S250）。
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89.发明公开광대역 고주파수 무선 시스템에서 다양한 형태의 비압축 동영상 신호 전송을 위한 차별적 오류 보호 방법 및 그 장치 有权用于通过宽带高频无线系统传输不同类型视频的不平等错误保护的方法和装置
公开(公告)号：KR1020090100219A
公开(公告)日：2009-09-23
申请号：KR1020080127924
申请日：2008-12-16
Applicant: 한국전자통신연구원
IPC: H04N19/89
CPC classification number: H04N19/67
Abstract: PURPOSE: A method and an apparatus for differently protecting an error for non compression moving picture signal transmission of various types in a broadband high frequency wireless system are provided to more powerfully protect important pixel information, thereby preventing serious image degradation in a receiving side due to a transmission channel error. CONSTITUTION: A bit space size and a bit sliced location are confirmed per a pixel component. The bit space size configures a pixel if moving picture data are input. The bit sliced location is classified based on importance. A pixel of a moving picture is classified according to importance per the pixel component by control of a UEP transmission controller(110). Error correction encoding which corrects relatively more errors is used in information with higher importance.
Abstract translation: 目的：提供一种用于在宽带高频无线系统中不同地保护各种类型的非压缩运动图像信号传输的误差的方法和装置，以更有效地保护重要的像素信息，从而防止由于接收侧的严重图像劣化 传输通道错误。 构成：每个像素分量确定位空间大小和位切片位置。 如果输入运动图像数据，则位空间大小配置像素。 位切片位置根据重要性进行分类。 通过UEP传输控制器（110）的控制，根据每个像素分量的重要性对运动图像的像素进行分类。 在更重要的信息中使用纠正相对更多错误的纠错编码。
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公开(公告)号：KR100906303B1
公开(公告)日：2009-07-07
申请号：KR1020070096695
申请日：2007-09-21
Applicant: 한국전자통신연구원
IPC: H04L12/28
Abstract: 장애물 회피를 위한 노드 간 무선 통신 방법 및 시스템을 개시한다. 본 발명에 의한 장애물 회피를 위한 노드 간 무선 통신 방법은 데스티네이션 노드와의 통신 경로에 대한 장애 발생 여부를 판단하는 단계; 상기 통신 경로에 장애가 발생한 것으로 판단된 경우, 복수의 주변 노드로부터 상기 복수의 주변 노드와 상기 데스티네이션 노드 간의 채널 상태 정보(CSI)를 획득하는 단계; 상기 획득된 채널 상태 정보에 기초하여, 상기 복수의 주변 노드 중 하나를 중계 노드로서 선택하는 단계; 및 상기 중계 노드로서 선택된 주변 노드를 이용하여, 상기 데스티네이션 노드와 통신을 수행하는 단계를 포함한다.
장애물 회피, 채널 상태 정보, 주변 노드, 중계 노드, 와이미디어 무선 매체 접근 제어
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