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公开(公告)号：KR1020020039426A
公开(公告)日：2002-05-27
申请号：KR1020000069231
申请日：2000-11-21
Applicant: 한국전자통신연구원 , 유티스타콤코리아 유한회사
IPC: H04B17/00
CPC classification number: H04W24/06 , H04L1/244 , H04L29/06013 , H04L41/14
Abstract: PURPOSE: A simulator for verifying a wireless protocol in a CDMA mobile communication system is provided to verify a wireless protocol between a terminal and a base station effectively. CONSTITUTION: An after-edge system(200) generally manages with respect to a wireless protocol verification test and operation between a terminal and a base station. A front-end system(210) is connected to the after-edge system(200) through an Ethernet and performs an encoding and decoding with respect to a function necessary for connecting to the base station physically and an inputted signal. If a voice signal including a voice call setting and a command of a test operator is inputted in a simulator through the terminal, a CPU(260) instructs a process command with respect to the inputted voice signal. A vocoder processor(270) creates a voice frame using the voice signal inputted from the terminal in accordance with a command of the CPU(260). A physical layer processor(290) converts the voice frame into a format adapted to an ATM transmission after a medium connection function is performed by transmitting the voice frame to the CPU(260).
Abstract translation: 目的：提供一种用于验证CDMA移动通信系统中的无线协议的模拟器，以有效地验证终端与基站之间的无线协议。 构成：后边缘系统（200）通常关于终端和基站之间的无线协议验证测试和操作进行管理。 前端系统（210）通过以太网连接到后边缘系统（200），并相对于物理地连接到基站所需的功能和输入的信号执行编码和解码。 如果通过终端在模拟器中输入包括语音呼叫设置和测试操作员的命令的语音信号，则CPU（260）针对所输入的语音信号指示处理命令。 声码器处理器（270）使用根据CPU（260）的命令从终端输入的语音信号来创建语音帧。 在通过将语音帧发送到CPU（260）来执行介质连接功能之后，物理层处理器（290）将语音帧转换成适合于ATM传输的格式。
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公开(公告)号：KR1020010062968A
公开(公告)日：2001-07-09
申请号：KR1019990059753
申请日：1999-12-21
Applicant: 한국전자통신연구원
IPC: H04B1/7097
CPC classification number: H04B1/7115 , H04W52/24
Abstract: PURPOSE: A noise factor measuring apparatus is provided to measure an exact noise factor simply by interrupting various noise sources existing at a wireless circumstance and measuring a noise factor using a signal-to-noise ratio owing thermal noise. CONSTITUTION: A variable attenuator(12) attenuates a signal transferred from a transmitter(11) so that the power of a signal provided to a receiver(13) may be adjusted. A controller and monitor block(14) estimates Eb/Io based on finger energy measured by the receiver(13) to control the variable attenuator(12) so as to reach a predetermined threshold value. The controller and monitor block(14) measures a received power to obtain a noise factor. Various noise sources existing at a wireless circumstance are interrupted by connecting the transmitter(11), the variable attenuator(12), and the receiver(13) by a wire.
Abstract translation: 目的：提供一种噪声因子测量装置，通过中断无线环境中存在的各种噪声源来测量精确的噪声系数，并使用由于热噪声引起的信噪比来测量噪声系数。 构成：可变衰减器（12）衰减从发射器（11）传送的信号，使得可以调节提供给接收器（13）的信号的功率。 控制器和监视器块（14）基于由接收器（13）测量的手指能量来估计Eb / Io，以控制可变衰减器（12）以达到预定阈值。 控制器和监视器块（14）测量接收的功率以获得噪声因子。 通过用导线连接发射器（11），可变衰减器（12）和接收器（13）来中断在无线环境中存在的各种噪声源。
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公开(公告)号：KR1019930013689A
公开(公告)日：1993-07-22
申请号：KR1019910024270
申请日：1991-12-24
IPC: G01D21/00
Abstract: 본 발명은 전자부품의 고장율 검출방법에 관한 것으로서, 구체적으로는 상업용 통신기기 등 아날로그 및 디지탈 시스템에서 사용되는 전자부품의 예측 고장율을 검출하는 방법에 관한 것이다.
(a)각 전자부품의 종류를 입력하는 스텝과, (b)입력된 상기 부품의 종류를 해당 종류인지를 판단하는 스텝과, (c)상기 해당종류 부품에 대응하는 각 종류 및 요인을 입력하는 스텝과, (d)상기 종류와 요인이 상기 인자테이블에 있는 각각 소정범위에 해당되는 가를 판단하는 스텝과, (e)상기 종류와 요인이 소정 범위에 해당되는 경우에는 상기 인자테이블에서 해당 기본 고장율(
b )을 독출하여 상기 램(20)에 저장하는 스텝과, (f)상기 입력장치로 부터 온도인자(
T), 환경인자(
E), 및 품질수준(
Q)의 데이타를 입력하는 스텝과, (g)상기 입력된 인자의 수가 설정된 갯수와 일치하는 가를 판단하는 스텝과, (h)상기 인자수가 설정갯수와 일치할때 입력된 상기 온도인자, 환경인자 및 품질인자의 데이타를 각각 상기 인자 테이블의 설정 데이타의 범위에 해당하는 가를 판단하여 해당시에는 입력 데이타를 상기 램(20)에 저장하고, 해당되지 않을 경우에는 에러처리를 하는 스텝 및, (ⅰ)상기 인자요인의 데이타로 부터 예측고장율
p 을
p =
p +
TX
E+
Q으로 산출하여 출력하는 스텝으로 전자 부품의 고장율을 검출하는 것을 특징으로 한다.-
Patent Agency Ranking
公开(公告)号：KR101808839B1
公开(公告)日：2017-12-14
申请号：KR1020140016924
申请日：2014-02-13
Applicant: 한국전자통신연구원
Abstract: 선형셀 구조의통신시스템에서기지국은셀 내에분산배치된복수의안테나중 이동단말로부터신호를수신하는안테나를식별하고, 시간순으로식별된안테나를토대로단말의이동방향을감지한후 이동단말의이동방향을토대로이동단말이핸드오프할타겟기지국을결정하고, 타겟기지국으로핸드오프준비지시를전송함으로써, 타겟기지국이이동단말로부터핸드오프요청을수신하기전에핸드오프를위한사전준비를완료할수 있도록한다.
Abstract translation: 在线性小区结构的通信系统中，基站识别接收来自分布在小区中的多个天线中的移动终端的信号的天线，基于按时间顺序识别的天线来检测移动终端的移动方向， 移动台确定要切换的目标基站，并向目标基站发送切换准备指令，使得目标基站可以在接收到来自移动台的切换请求之前完成切换准备。
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公开(公告)号：KR100419581B1
公开(公告)日：2004-02-19
申请号：KR1020010067866
申请日：2001-11-01
Applicant: 한국전자통신연구원
IPC: H04B7/26
Abstract: PURPOSE: A system of controlling a soft handoff region in a CDMA system and a method thereof are provided to reduce a handoff region or a possibility of handoff generation when a spare downlink link power assigned to soft handoff calls does not exist, thereby reducing a call drop rate of a busy subscriber call. CONSTITUTION: Base station device units(50,60) are composed of at least more than one of base station devices(51,52....5n)(61,62....6n). When a mobile station requests a handoff call by moving to a self region from another region, the base station devices(51,52....5n)(61,62....6n) ask a device to process the handoff call request, operate in response to the asked device, and assign power for soft handoff to the mobile station, or request all mobile stations to change handoff parameters. When the base station device units(50,60) request to process a soft handoff call, an entire base station controller(70) calculates the assigned power to assign the power according to a calculated value, or outputs a control signal to change the handoff parameters by all the mobile stations.
Abstract translation: 目的：提供一种在CDMA系统中控制软越区切换区域的系统及其方法，用于当分配给软越区切换呼叫的备用下行链路链路功率不存在时减少切换区域或切换产生的可能性，由此减少呼叫 忙用户呼叫的掉话率。 构成：基站设备单元（50,60）由至少一个以上的基站设备（51,52 .... 5n）（61,62 ... 6n）组成。 当移动台通过从另一个区域移动到自身区域来请求切换呼叫时，基站设备（51,52 .... 5n）（61,62 ... 6n）要求设备处理切换呼叫 请求，响应所要求的设备而操作，并为移动台分配软越区切换的功率，或请求所有移动台改变越区切换参数。 当基站设备单元（50,60）请求处理软越区切换呼叫时，整个基站控制器（70）根据计算值计算分配的功率以分配功率，或者输出控制信号以改变越区切换 所有移动台的参数。
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公开(公告)号：KR1020030037358A
公开(公告)日：2003-05-14
申请号：KR1020010067866
申请日：2001-11-01
Applicant: 한국전자통신연구원
IPC: H04B7/26
CPC classification number: H04W36/18 , H04W36/0072 , H04W52/40 , H04W72/08
Abstract: PURPOSE: A system of controlling a soft handoff region in a CDMA system and a method thereof are provided to reduce a handoff region or a possibility of handoff generation when a spare downlink link power assigned to soft handoff calls does not exist, thereby reducing a call drop rate of a busy subscriber call. CONSTITUTION: Base station device units(50,60) are composed of at least more than one of base station devices(51,52....5n)(61,62....6n). When a mobile station requests a handoff call by moving to a self region from another region, the base station devices(51,52....5n)(61,62....6n) ask a device to process the handoff call request, operate in response to the asked device, and assign power for soft handoff to the mobile station, or request all mobile stations to change handoff parameters. When the base station device units(50,60) request to process a soft handoff call, an entire base station controller(70) calculates the assigned power to assign the power according to a calculated value, or outputs a control signal to change the handoff parameters by all the mobile stations.
Abstract translation: 目的：提供一种控制CDMA系统中的软切换区域的方法及其方法，以便在不存在分配给软切换呼叫的备用下行链路功率时，减少切换区域或切换生成的可能性，从而减少呼叫 忙用户呼叫的丢弃率。 构成：基站设备单元（50,60）由至少多于一个的基站设备（51,52 .... 5n）（61,62 ... 6n）组成。 当移动站通过从另一区域移动到自身区域来请求切换呼叫时，基站设备（51,52 .... 5n）（61,62 ... 6n）请求设备处理切换呼叫 请求，响应于所请求的设备进行操作，并为移动台分配软切换功率，或请求所有移动台改变切换参数。 当基站设备单元（50,60）请求处理软切换呼叫时，整个基站控制器（70）根据计算值计算分配的功率以分配功率，或者输出控制信号以改变切换 所有移动台的参数。
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公开(公告)号：KR100316746B1
公开(公告)日：2001-12-12
申请号：KR1019990053514
申请日：1999-11-29
Applicant: 한국전자통신연구원
IPC: H04B17/00
Abstract: 본발명은코드분할다중접속기반의이동통신시스템의성능을실험실환경에서효율적으로분석하는코드분할다중접속이동통신시스템의성능분석을위한무선채널모사시험방법및 장치에관한것이다. 이러한코드분할다중접속이동통신시스템의성능분석을위한무선채널모사시험장치는, 기지국으로부터송신된순방향신호를입력받아파라미터값에따라페이딩신호를발생하는순방향페이딩에뮬레이터와, 타이동국혹은타 기지국에의한간섭효과를얻기위해잡음신호를발생하는순방향간섭발생기, 상기순방향페이딩에뮬레이터에서출력되는페이딩신호와순방향간섭발생기에서출력되는잡음신호를더한후 이동국까지의경로손실효과를반영하여순방향채널을형성하는순방향무선가변감쇄기, 상기이동국으로부터송신된역방향신호를입력받아파라미터값에따라페이딩신호를발생하는역방향페이딩에뮬레이터, 타이동국혹은타 기지국에의한간섭효과를얻기위해잡음신호를발생하는역방향간섭발생기, 상기역방향페이딩에뮬레이터에서출력되는페이딩신호와역방향간섭발생기에서출력되는잡음신호를더한후 기지국까지의경로손실효과를반영하여역방향채널을형성하는역방향무선가변감쇄기를포함한다.
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