公开(公告)号：KR101096182B1

公开(公告)日：2011-12-22

申请号：KR1020090037198

申请日：2009-04-28

Applicant: 한국전자통신연구원

Inventor： 조웅 ,  오현서 ,  곽동용

IPC: H04B7/14 ,  H04W84/04

Abstract: 본발명은차량통신에서중계기의위치에따라송신차량이신호전송방식을정의함으로써공간다이버시티이득에따른통신성능향상을기대할수 있다.

公开(公告)号：KR1020110068778A

公开(公告)日：2011-06-22

申请号：KR1020100037035

申请日：2010-04-21

Applicant: 한국전자통신연구원

Inventor： 조웅 ,  최현균 ,  오현서

IPC: H03G3/00 ,  H04J11/00

CPC classification number: H03G3/20 ,  H04J11/00

Abstract: PURPOSE: A method and device for controlling an automatic gain are provided to receive a signal through a communication device, thereby automatically and stably controlling a gain. CONSTITUTION: A signal receiving unit(110) receives a radio frequency signal. A low noise amplifier(120) low-noise-amplifies the radio frequency signal using an LNA gain value. A mixer(130) outputs a baseband signal by mixing an radio frequency signal of the low noise amplifier with a frequency supplied form a local oscillating unit(140). A radio frequency signal passed through a low pass filter unit(150) is amplified by a receiving signal variable gain amplifying unit(170). The radio frequency signal passed through the low pass filter unit is transmitted to an automatic gain control block(190) through an indicating unit(160). An amplified radio frequency signal is converted into a digital value by an analog digital converter(180). An automatic gain control block determines an LNA gain value and a VGA gain value.

Abstract translation: 目的：提供一种用于控制自动增益的方法和装置，用于通过通信装置接收信号，从而自动稳定地控制增益。 构成：信号接收单元（110）接收射频信号。 低噪声放大器（120）使用LNA增益值对射频信号进行低噪声放大。 混频器（130）通过将低噪声放大器的射频信号与从本地振荡单元（140）提供的频率混合来输出基带信号。 通过低通滤波器单元（150）的射频信号由接收信号可变增益放大单元（170）放大。 通过低通滤波器单元的射频信号通过指示单元（160）发送到自动增益控制块（190）。 放大的射频信号由模拟数字转换器（180）转换成数字值。 自动增益控制块确定LNA增益值和VGA增益值。

公开(公告)号：KR1020100127572A

公开(公告)日：2010-12-06

申请号：KR1020090046068

申请日：2009-05-26

Applicant: 한국전자통신연구원 ,  한국도로공사 ,  사단법인 한국지능형교통체계협회

Inventor： 이상우 ,  조웅 ,  오현서 ,  박종현

IPC: H04W36/08 ,  H04B7/26

CPC classification number: H04W36/0061 ,  H04W36/0083 ,  H04W36/08

Abstract: PURPOSE: A handover method, a beacon transmission method and a device thereof are provided to reduce an additional neighboring channel search process, thereby shortening the scanning time. CONSTITUTION: A base station sets channel information and location information of a neighboring BS(Base Station) in advance(S101). If a sync signal is inputted, the BS sets beacon slot through a sync unit(S102). The base station sets beacon transmission section within the set beacon slot(S103). The BS generates beacon through a beacon generation unit. The BS transmits the generated beacon in the beacon transmission interval(S104).

Abstract translation: 目的：提供切换方法，信标发送方法及其装置，以减少额外的相邻信道搜索处理，从而缩短扫描时间。 构成：基站预先设定相邻BS（基站）的信道信息和位置信息（S101）。 如果输入同步信号，则BS通过同步单元设置信标时隙（S102）。 基站在设置的信标时隙内设置信标发送部（S103）。 BS通过信标生成单元生成信标。 BS在信标发送间隔中发送生成的信标（S104）。