프리앰블 생성장치와 방법, 및 프리앰블 수신장치와 방법
    71.
    发明公开
    프리앰블 생성장치와 방법, 및 프리앰블 수신장치와 방법 无效
    用于生成可预测信号的装置和方法以及用于接收可预测信号的装置和方法

    公开(公告)号:KR1020100072691A

    公开(公告)日:2010-07-01

    申请号:KR1020080131178

    申请日:2008-12-22

    CPC classification number: H04L27/2692 H04L27/2614 H04L27/2628

    Abstract: PURPOSE: A preamble generation device, a method thereof, a preamble receiving device and a method thereof are provided to improve data transfer rate as the size of the address information by detecting transmitting and receiving address to preamble. CONSTITUTION: A shift register input unit(110) inputs at least one among the address of the source node transmitting a frame and address of the receiving node receiving a frame to a shift register. An address sequence generation unit(120) generates address sequence of subcarrier number size of the preamble of the frame in the shift register based on the output value shifted by each clock. A preamble transform unit(130) changes the produced address sequence through the IFFT into the time domain signal of preamble. The preamble transform unit transforms calculated the modular(modulo) -2 to the IFFT by adding the produced address sequence based on the received node address and the produced address sequence based on the transmission node address.

    Abstract translation: 目的:提供前导码生成装置,其方法,前同步码接收装置及其方法,以通过检测对前导码的发送和接收地址来提高作为地址信息的大小的数据传输速率。 构成:移位寄存器输入单元(110)将发送帧的源节点的地址和接收帧的接收节点的地址中的至少一个输入到移位寄存器。 地址序列生成单元基于由每个时钟偏移的输出值,生成移位寄存器中的帧的前导码的子载波号码的地址序列。 前导码变换单元(130)将产生的地址序列通过IFFT改变为前导码的时域信号。 前导码变换单元通过基于接收到的节点地址和所产生的地址序列,基于发送节点地址添加所产生的地址序列,将计算出的模(mod)-2转换为IFFT。

    인지 무선 시스템에서 자연 전송중단주기를 이용한 채널 탐색 방법
    72.
    发明公开
    인지 무선 시스템에서 자연 전송중단주기를 이용한 채널 탐색 방법 有权
    使用自然无线电系统中的自然周期的信道感知方案

    公开(公告)号:KR1020100069487A

    公开(公告)日:2010-06-24

    申请号:KR1020080128179

    申请日:2008-12-16

    CPC classification number: H04W28/06 H04W16/14 H04W74/0808

    Abstract: PURPOSE: A channel sensing scheme using a natural quiet period in a cognitive radio system is provided to reduce transmission period by reducing the frequency of QP allocation through the energy detection with an NQP. CONSTITUTION: An NQP information collecting unit(401) searches, from a network having a data transmission and reception period and an idle period, the period in which data transmission is stopped. A channel searching unit(402) searches the searched period, and a channel searching information processor(403) determines the length of idle period based on the searching result. In a reservation-based mesh network, the period in which data transmission is stopped corresponds to an IFS(Inter Frame Space).

    Abstract translation: 目的:提供一种在认知无线电系统中使用自然安静时段的信道感测方案,通过使用NQP的能量检测降低QP分配的频率来减少传输周期。 构成:NQP信息收集单元(401)从具有数据发送接收期间和空闲期间的网络中搜索数据发送停止的期间。 频道搜索单元(402)搜索所搜索的周期,并且信道搜索信息处理器(403)基于搜索结果来确定空闲时段的长度。 在基于预留的网状网络中,数据传输停止的周期对应于IFS(帧间间隔)。

    고이득을 위한 카세그레인 안테나
    73.
    发明公开
    고이득을 위한 카세그레인 안테나 有权
    CASSEGRAIN天线高增益

    公开(公告)号:KR1020100040216A

    公开(公告)日:2010-04-19

    申请号:KR1020080099342

    申请日:2008-10-09

    CPC classification number: H01Q19/062 H01Q3/46 H01Q19/19 H01Q19/193

    Abstract: PURPOSE: A cassegrain antenna for high grain is provided to form a broadband antenna by forming different depths groove scattering parts with the concave part of a main reflection unit. CONSTITUTION: A feeding unit(130) radiates electric wave. A sub-reflection unit(120) reflects the radiated electric wave. A main reflection unit(110) includes a plurality of concavo-convex parts. The main reflection unit reflects the reflected electric wave from the sub-reflection unit. The concave part of the concavo-convex parts of the main reflection unit is formed along the trace of a parabola, parabolic, oblate, spheroid and spherical shapes.

    Abstract translation: 目的:通过与主反射单元的凹部形成不同深度的凹槽散射部分,提供用于高粒度的卡斯格林天线以形成宽带天线。 构成:馈电单元(130)辐射电波。 副反射单元(120)反射辐射电波。 主反射单元(110)包括多个凹凸部。 主反射单元反射来自副反射单元的反射电波。 主反射单元的凹凸部的凹部沿抛物线,抛物线形,扁圆形,球状和球形的轨迹形成。

    무선통신시스템에서의 피드백 전송 및 적응 전송 방법
    74.
    发明授权
    무선통신시스템에서의 피드백 전송 및 적응 전송 방법 失效
    无线电通信系统中的反馈传输和自适应传输方法

    公开(公告)号:KR100936609B1

    公开(公告)日:2010-01-13

    申请号:KR1020070121504

    申请日:2007-11-27

    Abstract: 본 발명은 무선통신시스템에서 피드백 전송 및 적응 전송 방법에 관한 것으로서, 피드백 양을 줄이면서 다중 사용자의 밴드-AMC 모드 및 다이버시티 모드를 지원함으로써, 데이터 전송 효율을 증가시킬 수 있는 채널품질정보 피드백 전송 및 적응 전송 방법에 관한 것이다.
    본 발명에 따른 피드백 전송 및 적응 전송 방법은, 사용자 단말이 수신 신호로부터 채널품질정보를 도출하여 채널품질정보를 피드백할 부밴드를 선택하는 단계와, 사용자 단말이 부밴드의 선택 여부에 따라서 채널품질정보를 기지국으로 피드백하는 단계와, 기지국이 피드백된 채널품질정보에 의하여 전송 모드를 결정하여 결정된 전송 모드에 따른 적응 전송 파형을 송신하는 단계와, 사용자 단말이 기지국이 송신한 적응 전송 파형을 수신하고 결정된 전송 모드에 따라서 수신된 파형을 복원하는 단계를 포함한다.
    무선통신, 피드백

    전압 제어 발진기
    75.
    发明公开
    전압 제어 발진기 有权
    电压控制振荡器

    公开(公告)号:KR1020090063601A

    公开(公告)日:2009-06-18

    申请号:KR1020070131031

    申请日:2007-12-14

    Abstract: A voltage controlled oscillator is provided to obtain a signal with high power without an additional circuit by connecting a transmission line of 1/4 wavelength to a source terminal of an FET for amplifying a buffer and matching the power with the length of a stub for biasing a coupling signal. A voltage controlled oscillator includes an oscillator, an amplifier, and a pair of transmission lines. The amplifier is cross-combined for oscillating a differential signal and is comprised of a pair of FET(2) to amplify the output of the oscillator and an inductor(1). The pair of transmission lines(7) are short-circuited in the source terminal of the FET. The FET of the amplifier connects a drain terminal for amplifying an oscillation frequency. The signal connection line is serially connected to the drain terminal of the FET of the amplifier. The transmission line includes a capacitor with a fixed value.

    Abstract translation: 提供压控振荡器以通过将1/4波长的传输线连接到用于放大缓冲器的FET的源极端子并且将功率与用于偏置的短截线的长度匹配来获得具有高功率的信号而不需要额外的电路 耦合信号。 压控振荡器包括振荡器,放大器和一对传输线。 放大器被交叉组合以振荡差分信号,并且包括用于放大振荡器的输出的一对FET(2)和电感器(1)。 一对传输线(7)在FET的源极端子短路。 放大器的FET连接用于放大振荡频率的漏极端子。 信号连接线串联连接到放大器的FET的漏极端子。 传输线包括具有固定值的电容器。

    무선통신시스템에서의 피드백 전송 및 적응 전송 방법
    76.
    发明公开
    무선통신시스템에서의 피드백 전송 및 적응 전송 방법 失效
    无线电通信系统中的反馈传输和自适应传输方法

    公开(公告)号:KR1020090054694A

    公开(公告)日:2009-06-01

    申请号:KR1020070121504

    申请日:2007-11-27

    CPC classification number: H04L1/16 H04L1/0026 H04L27/2602 H04L27/2626

    Abstract: A method for feedback transmission and adaptive transmission in a wireless communication system is provided to improve data transmission efficiency by supporting a band-AMC mode and a diversity mode in time division or frequency division at the same time. A user terminal extracts the channel quality information from a receiving signal and selects a sub band to perform the feedback of the channel quality information(S10). The user terminal feeds back the channel quality information to a base station according to the selection of the sub band(S20). The base station determines the existence of the sub band channel quality information and detects the channel quality information(S30). The base station transmits an adaptive transmission waveform according to the transmission mode by determining the transmission mode by the channel quality information which is fed back(S50). The user terminal receives the adaptive transmission waveform transmitted from the base station and recovers the received waveform according to the determined transmission mode(S60).

    Abstract translation: 提供了一种用于在无线通信系统中进行反馈传输和自适应传输的方法,以通过同时支持频段AMC模式和分集或分频的分集模式来提高数据传输效率。 用户终端从接收信号中提取信道质量信息,并选择子带来执行信道质量信息的反馈(S10)。 用户终端根据子带的选择将信道质量信息反馈给基站(S20)。 基站确定子带信道质量信息的存在并检测信道质量信息(S30)。 基站通过反馈的信道质量信息确定发送模式,根据发送模式发送自适应发送波形(S50)。 用户终端接收从基站发送的自适应发送波形,并根据确定的发送模式恢复接收到的波形(S60)。

    싸이클로-스테이셔너리 특성을 이용한 신호 검출 방법 및장치
    77.
    发明公开
    싸이클로-스테이셔너리 특성을 이용한 신호 검출 방법 및장치 失效
    用于使用循环特征检测信号的方法和装置

    公开(公告)号:KR1020090028392A

    公开(公告)日:2009-03-18

    申请号:KR1020080048543

    申请日:2008-05-26

    CPC classification number: H04L27/00 H04L27/0006

    Abstract: A method and an apparatus for detecting a signal with cyclo-stationary characteristics are provided to efficiently perform a spectrum sensing by reducing a complexity of calculation in detecting a signal with cyclo-stationary characteristics. An apparatus for detecting a signal calculates cyclo-stationary characteristics values on a cyclic frequency domain of input signals(S110), normalizes the calculated cyclo-stationary characteristics values(S120), multiplies the calculated cyclo-stationary characteristics values each other(S130), compares the result values of multiplication with a critical value(S140), determines that the signal exists in the input signals in case a result value is larger than the critical value(S150), and detects the signal from the input signals(S160).

    Abstract translation: 提供一种用于检测具有环稳定特性的信号的方法和装置,以通过降低在检测具有环稳定特性的信号时的计算复杂度来有效地执行频谱感测。 用于检测信号的装置计算输入信号的循环频域上的环稳定特性值(S110),对所计算出的环稳定特性值进行归一化(S120),将计算出的环稳定特性值相乘(S130), 将乘法结果值与临界值进行比较(S140),在结果值大于临界值(S150)的情况下,确定信号存在于输入信号中,并根据输入信号检测信号(S160)。

    동적 채널 할당을 위한 채널 집합 관리 방법 및 시스템
    78.
    发明公开
    동적 채널 할당을 위한 채널 집합 관리 방법 및 시스템 失效
    用于动态通道分配的信道集管理方法和系统

    公开(公告)号:KR1020090025123A

    公开(公告)日:2009-03-10

    申请号:KR1020070131028

    申请日:2007-12-14

    CPC classification number: H04W72/00 H04W16/14 H04W28/0231 H04W28/24

    Abstract: A channel set management method and a system thereof for a dynamic channel allocation which periodically manages idle channels in a recognition wireless communications system which dynamically assigns the frequency of channel are provided to select optimum mobile channel by providing information for determining suitable frequency. A channel estimator(230) predicts a channel condition and a channel environment about an idle channel based on the channel information obtained through the spectrum sense and communications protocol. A reliability decision device(250) evaluates the reliability about the predictable result. A channel set administration(270) gives available rank to the idle channel based on the evaluated reliability.

    Abstract translation: 提供用于动态分配信道频率的识别无线通信系统中周期性地管理空闲信道的信道集管理方法及其系统,以通过提供用于确定合适频率的信息来选择最佳移动信道。 信道估计器(230)基于通过频谱感知和通信协议获得的信道信息预测关于空闲信道的信道状况和信道环境。 可靠性决策装置(250)评估关于可预测结果的可靠性。 信道集管理(270)基于评估的可靠性给空闲信道提供等级。

    안테나 급전회로 및 스위칭 빔 형성 장치
    79.
    发明授权
    안테나 급전회로 및 스위칭 빔 형성 장치 失效
    用于天线的馈电电路和用于形成开关束的装置

    公开(公告)号:KR100868000B1

    公开(公告)日:2008-11-10

    申请号:KR1020070058002

    申请日:2007-06-13

    Abstract: 안테나 급전회로 및 스위칭 빔 형성 장치가 개시된다. 이 안테나 급전회로는 입력되는 신호를 분할하는 신호 디바이더; 외부에서 수신되는 제어신호에 따라, 스위칭 동작을 수행하는 스위칭 소자; 상기 스위칭 소자의 스위칭 동작에 따라, 상기 분할된 신호의 위상 천이를 발생시키는 복수의 위상 천이기들; 및 상기 위상 천이기들과 연결되어 있으며, 상기 스위칭 소자의 스위칭 동작에 따라 2 종류의 위상차를 갖는 2개의 섹터 빔을 형성하는 안테나들을 포함하는 것을 특징으로 한다.

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