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公开(公告)号：KR1020100071711A
公开(公告)日：2010-06-29
申请号：KR1020080130520
申请日：2008-12-19
Applicant: 한국전자통신연구원
Abstract: PURPOSE: A hand-off device of different systems and a method thereof are provided to reflect the property of the different systems, and to reduce the delay time of the system due to a hand-off process. CONSTITUTION: A module B(230) measures a channel state at a time sharing base cell. An interface(220) stores information of candidate set cells which has the same mode with a frequency division cell. The interface transfers the stored information to a module A(210). A hand-off determining unit compares the channel state information of a module A and the channel state information of the module B. The hand-off determination unit determines the hand-off with the cell having good channel environment.
Abstract translation: 目的：提供不同系统的切换装置及其方法，以反映不同系统的性质，并减少由于切换过程而导致的系统的延迟时间。 构成：模块B（230）在一次共享基站时测量信道状态。 接口（220）存储与分频单元具有相同模式的候选集合单元的信息。 接口将存储的信息传送到模块A（210）。 切换确定单元将模块A的信道状态信息与模块B的信道状态信息进行比较。越区切换判定单元用具有良好信道环境的小区来确定越区切换。
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公开(公告)号：KR1020080050193A
公开(公告)日：2008-06-05
申请号：KR1020070029130
申请日：2007-03-26
Applicant: 한국전자통신연구원
CPC classification number: H04L27/2636 , G06F17/141
Abstract: A DFT(Discrete Fourier Transform) device and its control method are provided to process DFT input vectors of various resources while minimizing the amount of calculation of a multiplier by the size of DFTs. A stage memory(310) stores data of each user. An address calculator(320) designates the output of each data stored in the memory and generates cosine and sine coefficients. A cosine/sine signal generator(330) designates outputs of the cosine and sine coefficients. A multiplier(340) multiplies each data, which are outputted from the memory, and the cosine and sine coefficients designated by the cosine and sine signal generator. An adder(350) adds values multiplied by the multiplier. The address calculator designates the output order of the data stored in the memory according to an input address value, and outputs the data stored in the memory according to the designated order.
Abstract translation: 提供DFT（离散傅立叶变换）装置及其控制方法来处理各种资源的DFT输入向量，同时使乘数的计算量最小化DFT的大小。 级存储器（310）存储每个用户的数据。 地址计算器（320）指定存储在存储器中的每个数据的输出，并产生余弦和正弦系数。 余弦/正弦信号发生器（330）指定余弦和正弦系数的输出。 乘法器（340）将从存储器输出的每个数据和由余弦和正弦信号发生器指定的余弦和正弦系数相乘。 加法器（350）增加乘以乘数的值。 地址计算器根据输入地址值指定存储在存储器中的数据的输出顺序，并根据指定的顺序输出存储在存储器中的数据。
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公开(公告)号：KR1020070061209A
公开(公告)日：2007-06-13
申请号：KR1020060064678
申请日：2006-07-11
Applicant: 한국전자통신연구원
CPC classification number: H04L27/2607 , H04L25/0224 , H04L27/2628 , H04L27/265 , H04L27/2675 , H04L27/2695
Abstract: A signal transmitter and a receiver are provided to prevent an accumulative error difference caused by a minute time error, and to improve an SNR(Signal to Noise Ratio). A signal transmitter includes an inverse discrete Fourier transforming module(140), a cyclic prefix adding module(150), a preamble adding module(160), and a digital-analog transforming module(170). The inverse discrete Fourier transforming module(140) receives specific modulated data, performs inverse Fourier discrete Fourier transformation, and generates a first symbol. The cyclic prefix adding module adds a pre-set cyclic prefix to the first symbol, and generates a second symbol. The preamble adding module adds a set preamble to the second symbol, and generates a third symbol. The digital-analog transforming module transforms the third symbol, added with the cyclic prefix and the preamble, to an analog symbol.
Abstract translation: 提供信号发送器和接收器以防止由微小时间误差引起的累积误差，并且提高SNR（信噪比）。 信号发射机包括反离散傅立叶变换模块（140），循环前缀添加模块（150），前置码添加模块（160）和数模转换模块（170）。 逆离散傅立叶变换模块（140）接收特定的调制数据，执行逆傅立叶离散傅里叶变换，并产生第一符号。 循环前缀添加模块向第一符号添加预定循环前缀，并生成第二符号。 前导码添加模块将集合前导码添加到第二符号，并生成第三符号。 数字 - 模拟变换模块将添加有循环前缀和前导码的第三个符号转换为模拟符号。
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公开(公告)号：KR100506018B1
公开(公告)日：2005-08-03
申请号：KR1020030062190
申请日：2003-09-05
Applicant: 한국전자통신연구원
IPC: H04W72/12 , H04L12/851
Abstract: 본 발명은 상이한 트래픽 특성을 갖는 패킷들을 다수의 사용자 단말기에 전송하는 방법에 관한 것이다.
본 발명에 따른 패킷 전송의 우선순위 결정 방법은 전송 채널의 상태와, 시간에 따른 큐내의 데이터량과, 트래픽 특성에 따라서 수정된 지연 가능 시간에 기초하여 데이터 전송의 우선순위를 결정한다. 본 발명은, 상기 채널 상태를 파악하기 위하여 사용자 단말기의 SNR 정보를 수집하고, 큐의 상태를 특정시점의 큐내의 데이터량과 전송 데이터량의 평균을 이용하여 정의한다. 또한, 트래픽 특성에 따라서, 패킷 덩어리의 경우, 패킷 인터벌을 재정의 하여 수정된 지연 가능시간을 산출한다.
본 발명의 구성에 의하여, 트래픽 특성과 채널 상태 및 큐의 상태를 고려한 효율적이고 공평한 데이터 전송이 수행될 수 있다.-
25.发明公开ＯＦＤＭＡ ＦＤＤ 기반 시스템에서의 순방향 채널 구성방법 및 순방향 채널 할당 방법 有权基于FDD的系统中的前向信道配置方法和前向信道分配方法，特别是在最小间隔干扰的方法中，对相邻小区的子载波进行分配
公开(公告)号：KR1020050023702A
公开(公告)日：2005-03-10
申请号：KR1020030061086
申请日：2003-09-02
Applicant: 한국전자통신연구원
IPC: H04B7/26
CPC classification number: H04W28/02 , H04L5/023 , H04L5/143 , H04W16/02 , H04W48/08 , H04W48/12 , H04W72/00 , H04W72/0453 , H04W72/082 , H04W72/1247
Abstract: PURPOSE: A forward channel configuring method and a forward channel assigning method in an OFDMA(Orthogonal Frequency Division Multiple Access) FDD(Frequency Division Duplex)-based system are provided to transmit control information and data traffic in different way, and to assign certain sub carriers to a terminal in a handoff area, thereby minimizing intercell interference. CONSTITUTION: A scheduler selects a terminal having the first priority(S10). The scheduler obtains position information on the selected terminal, and acquires power information on the terminal(S20). The scheduler decides whether the terminal is located in a handoff area(S30). If so, the scheduler determines a sub carrier list to be punched for the terminal(S90). The scheduler selects one of all assignable sub carriers(S100), and decides whether the selected sub carrier exists in the list(S110). If so, the scheduler decides whether an assignable sub carrier further remains(S130). If not, the scheduler increases the first priority.
Abstract translation: 目的：提供一种基于OFDMA（正交频分多址）FDD（Frequency Division Duplex，正交频分多址）FDD（Frequency Division Duplex）（正交频分多址）FDD（Frequency Division Duplex，正交频分复用））方式的前向信道配置方法和前向信道分配方法，以不同的方式发送控制信息和数据业务， 载波到切换区域中的终端，从而最小化小区间干扰。 构成：调度器选择具有第一优先级的终端（S10）。 调度器获取所选终端的位置信息，并且获取终端的电力信息（S20）。 调度器确定终端是否位于切换区域中（S30）。 如果是，则调度器确定要为终端冲孔的子载波列表（S90）。 调度器选择所有可分配子载波之一（S100），并且确定所选择的子载波是否存在于列表中（S110）。 如果是，则调度器决定是否进一步保留可分配子载波（S130）。 如果不是，调度程序将增加第一优先级。
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Patent Agency Ranking
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公开(公告)号：KR1020170105317A
公开(公告)日：2017-09-19
申请号：KR1020160028397
申请日：2016-03-09
Applicant: 한국전자통신연구원
Abstract: 하드웨어기반의 GPU를이용한가상머신의화면전송방법및 이를이용한장치가개시된다. 본발명에따른화면전송방법은하이퍼바이저(Hypervisor)가원격접속된사용자에상응하는가상머신(Virtual Machine)을실행하는단계; 상기가상머신에상응하는운영체제의부팅여부를확인하고, 상기부팅이완료되지않은경우에소프트웨어기반의제1 GPU(Graphic Processing Unit)를이용하여상기가상머신의화면을상기사용자에게제공하는단계; 및상기부팅이완료된경우에스크린에이전트(screen agent)를통해하드웨어기반의제2 GPU를활성화하고, 상기제2 GPU 및가상입출력장치중 적어도하나를이용하여상기화면을상기사용자에게제공하는단계를포함한다.
Abstract translation: 一种使用基于硬件的GPU传输虚拟机的屏幕的方法以及使用该方法的装置。 根据本发明的传输屏幕的方法包括以下步骤：执行与管理程序的远程访问用户对应的虚拟机; 确认是否对应于虚拟机的操作系统的引导，并且通过使用所述第一1个GPU（图形处理单元）的基础上的情况下的软件，其中所述引导不是虚拟机给用户的完整的服务屏幕的; 并且当引导完成时通过屏幕代理激活基于硬件的第二GPU并且使用第二GPU和虚拟输入/输出设备中的至少一个将屏幕提供给用户 的。
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公开(公告)号：KR1020170047747A
公开(公告)日：2017-05-08
申请号：KR1020150148202
申请日：2015-10-23
Applicant: 한국전자통신연구원
CPC classification number: G06F9/45558 , G06F3/147 , G06F9/452 , G09G2370/022 , G09G2370/042 , H04L67/025 , H04L67/2809 , H04L69/04
Abstract: 본발명은화면압축서비스방법및 그방법을수행하는가상네트워크장치에관한것이다. 구체적으로, 화면압축서비스방법은가상머신이실행되는클라우드인프라와별개로존재하는 NFV 인프라를구성하는가상네트워크장치를통해원격으로접속된가상머신의원격화면을압축하고, 압축된원격화면을사용자단말에전달하는방법에관한것이다.
Abstract translation: 屏幕压缩服务方法和用于执行该方法的虚拟网络设备技术领域本发明涉 具体地，屏幕压缩服务的方法是通过构成从云基础设施执行压缩单独存在连接到远程的虚拟机的远程显示的NFV基础设施，和压缩所述远程显示用户终端的虚拟网络设备的虚拟机中的 如图所示。
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公开(公告)号：KR1020140045243A
公开(公告)日：2014-04-16
申请号：KR1020120111545
申请日：2012-10-08
Applicant: 한국전자통신연구원
CPC classification number: H04W4/043
Abstract: An embodiment of the present invention relates to a method for determining the position information of a friend based on a location information measurement technique, which is used indoors to guide a point of interest desired by a user, and measured information. Provided is the apparatus for indoor terminal position measurement, which is the apparatus for determining an indoor position of a terminal based on femtocells, including a femtocell base station that has a plurality of sensor transmitters respectively transmitting sensor signals for locating the terminal so that the sensor signals are received by the terminal, and a sensor control unit that controls the operations of the sensor transmitters; and the terminal that receives the sensor signals from the sensor transmitters, determines which one of the sensor transmitters is the source, and calculates the distance between the sensor transmitter from which the sensor signal is transmitted and the terminal. [Reference numerals] (AA) Start; (BB) No response; (CC) Response; (DD) No; (EE) Yes; (S300) Synchronization between a femtocell base station and sensor transmitters; (S302) Arrival of a terminal at a femtocell/Synchronization; (S304) Femtocell base station inquires a destination response to the terminal through a user interface?; (S306) Terminal selects a target place; (S308) Femtocell base station directs the initiation of sensing to a sensor control unit; (S310) Sensor transmitter #1 starts transmission; (S312) Sensor receiver receives and calculates a distance; (S314) Sensor receiver transmits the calculated distance information to the terminal; (S316) Terminal transmits the distance and ID information to the femtocell base station; (S318) ! > Total number of sensor transmitters ?
Abstract translation: 本发明的一个实施例涉及一种用于基于在室内使用以指导用户期望的兴趣点的位置信息测量技术和测量的信息来确定朋友的位置信息的方法。 提供了一种用于室内终端位置测量的装置，其是用于基于毫微微小区确定终端的室内位置的装置，包括具有多个传感器发射机的毫微微小区基站，分别发送用于定位终端的传感器信号，使得传感器 信号由终端接收，传感器控制单元控制传感器发射器的操作; 并且从传感器发射器接收传感器信号的终端确定传感器发射器中的哪一个是源，并且计算传感器信号被传输的传感器发射器与终端之间的距离。 （附图标记）（AA）开始; （BB）无反应; （CC）回应; （DD）否 （EE）是的; （S300）毫微微小区基站与传感器发射机之间的同步; （S302）终端到达毫微微小区/同步; （S304）毫微微小区基站通过用户接口向终端询问目的地的响应; （S306）终端选择目标地点; （S308）毫微微小区基站将传感器的启动引导到传感器控制单元; （S310）传感器发送器＃1开始传输; （S312）传感器接收器接收并计算距离; （S314）传感器接收器将计算出的距离信息发送到终端; （S316）终端向毫微微小区基站发送距离和ID信息; （S318）！ >传感器变送器总数？
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公开(公告)号：KR1020110071762A
公开(公告)日：2011-06-29
申请号：KR1020090128411
申请日：2009-12-21
Applicant: 한국전자통신연구원
Inventor： 전선심
CPC classification number: H04N21/6338 , H04L65/4076 , H04N21/2385 , H04N21/2402 , H04N21/25808 , H04N21/6405 , H04N21/6408
Abstract: PURPOSE: A radio bearer decision method of a mobile IP TV system is provided to decide the radio bearer in consideration of the property of the OFDM manner, even if the structure of a frame on standard is not changed. CONSTITUTION: A MCE(Multicast Coordination Entity)(230) informs that of transmitting the contents with the unicast transmission method by using UE1(User Equipment 1) and UE2(S273,S274). The MCE transmits the identifier of UE1 and the UE2 obtained from UE1 and UE2 and channel quality information to eNB1 and eNB2(S275,S276). The ENB1 and eNB2 assign the physical resource of the transport channel using in the unicast transmission method to UE1 and UE2 by using the channel quality information of UE2 and UE1(S281,S282).
Abstract translation: 目的：提供一种移动IP电视系统的无线电承载决策方法，以便考虑到OFDM方式的属性来决定无线电承载，即使标准帧的结构没有改变。 构成：MCE（Multicast Coordination Entity，多播协调实体）（230）通过使用UE1（用户设备1）和UE2（S273，S274）通过单播传输方式发送内容。 MCE向eNB1和eNB2发送UE1和从UE1和UE2获得的UE2的标识符和信道质量信息（S275，S276）。 ENB1和eNB2通过使用UE2和UE1的信道质量信息将单播传输方法中使用的传输信道的物理资源分配给UE1和UE2（S281，S282）。
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