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    백플레인 버스의 구성방법
    2.
    发明授权
    백플레인 버스의 구성방법 失效
    一种构建BP-BUS的方法

    公开(公告)号：KR1019920003286B1

    公开(公告)日：1992-04-27

    申请号：KR1019890019673

    申请日：1989-12-27

    Applicant: 한국전자통신연구원

    Inventor： 박병관 ,  강경용 ,  윤남석 ,  심원세 ,  윤영호 ,  박승규 ,  임기욱 ,  기안도

    IPC: G06F13/38

    Abstract: Synchronizing clock pulses are generated by a central slot (12) so as to be supplied through signal lines of a back plane (11). Two outer slots (13)(14) and (15)(16) which are adjacent to each other, and which are located outwardly from the central slot (12) are electrically bundled together as groups. The lengths of the signal lines of the back plane (11), which connect the groups to the central slot (12), are made to be the same, so that bus clocks of the central slot (12) should reach the groups simultaneously. The method simplifys the circuit constitution, to facilitate a serial termination, and minimizes the load of the signal receiving end.

    Abstract translation: 同步时钟脉冲由中心槽（12）产生，以便通过背板（11）的信号线提供。 彼此相邻并从中心狭槽（12）向外定位的两个外槽（13）（14）和（15）（16）被组合在一起。 将组合到中心狭槽（12）的背板（11）的信号线的长度相同，使得中心槽（12）的总线时钟同时到达组。 该方法简化了电路结构，便于串行终端，并使信号接收端的负载最小化。

    ＯＦＤＭ 기지국 시스템에서의 스마트 안테나 빔 형성 방법및 장치
    3.
    发明公开
    ＯＦＤＭ 기지국 시스템에서의 스마트 안테나 빔 형성 방법및 장치 有权
    使用OFDM的移动通信基站中智能天线波束形成的方法和装置

    公开(公告)号：KR1020070057429A

    公开(公告)日：2007-06-07

    申请号：KR1020050116882

    申请日：2005-12-02

    Applicant: 한국전자통신연구원 ,  삼성전자주식회사 ,  에스케이브로드밴드주식회사 ,  에스케이텔레콤 주식회사 ,  주식회사 케이티

    Inventor： 방영조 ,  윤영호 ,  유창완 ,  박형래 ,  박윤옥

    IPC: H01Q3/26 ,  H01Q21/06

    CPC classification number: H04B7/086 ,  G01S3/74

    Abstract: A method and apparatus for forming smart antenna beam in a mobile communication base station using OFDM(Orthogonal Frequency Division Multiplexing) is provided to minimize influence of the noise and interference signals by forming a main beam in a direction of a required signal and a null in a direction of the interference signal. Plural received signals are processed to extract plural data sub-carrier matrixes allocated to an original signal which are required by a base station. A nominal angle is estimated for the plural received signal based on the data sub-carrier matrixes(S110). The original signal and an interference signal are distinguished from the received signals using the nominal angle(S130). A covariance matrix of the interference signal and noise is generated by using the nominal angle, and plural beam formation vectors for the signal are generated by using the covariance matrix(S140). One resultant beam is formed by combining plural beams(S160).

    Abstract translation: 提供了一种在使用OFDM（正交频分复用）的移动通信基站中形成智能天线波束的方法和装置，以通过在所需信号的方向上形成主波束而使噪声和干扰信号的影响最小化， 干扰信号的方向。 处理多个接收信号以提取分配给基站所要求的原始信号的多个数据子载波矩阵。 基于数据子载波矩阵对多个接收信号估计公称角（S110）。 使用标称角度将原始信号和干扰信号与接收信号区分开（S130）。 通过使用公称角产生干涉信号和噪声的协方差矩阵，并且通过使用协方差矩阵来生成信号的多个波束形成向量（S140）。 通过组合多个波束形成一个合成波束（S160）。

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