-
公开(公告)号：KR101072021B1
公开(公告)日：2011-10-10
申请号：KR1020100024100
申请日：2010-03-18
Applicant: 한국전자통신연구원 , 숭실대학교산학협력단
IPC: H04B7/02
Abstract: 하다마드(Hadamard) 행렬을이용한저복잡도순차적송신다중빔 형성장치및 방법이개시된다. 하다마드행렬을이용하여간단한구성으로코드북을만들어낼 수있으며, 복잡한코드북형태를벗어나간단한코드북을생성하므로가중치벡터의수를줄이고하드웨어복잡도를줄일수 있다. 공간다이버시티처리기를이용하여다이버시티이득을최대화할 수있으며, systematic하게빔 형성가중치벡터를생성가능하다.
-
公开(公告)号：KR1020110068755A
公开(公告)日：2011-06-22
申请号：KR1020100024100
申请日：2010-03-18
Applicant: 한국전자통신연구원 , 숭실대학교산학협력단
IPC: H04B7/02
CPC classification number: H04B7/0634 , H04B7/0408 , H04B7/0617 , H04B7/088 , H04L1/06
Abstract: PURPOSE: A sequential transmission multi beam forming method of low-complexity by using HADAMARD matrix is provided to reduce the complexity of hardware by using the weighted value about a multi transmission antenna. CONSTITUTION: A transmission beam forming unit(130) forms transmission beam through a transmission codebook. The transmission codebook is generated by using a HADAMARD matrix. A codebook storage unit(120) stores the generated transmission codebook. A reception beam forming unit(180) forms reception beam through the reception codebook. A code book storage unit(170) stores the generated reception codebook. A spatial diversity processor(190) transmits channel information to the reception beam forming unit.
Abstract translation: 目的：提供使用HADAMARD矩阵的低复杂度的顺序传输多波束形成方法，通过使用关于多发射天线的加权值来降低硬件的复杂度。 构成：发送波束形成单元（130）通过发送码本形成发送波束。 通过使用HADAMARD矩阵生成传输码本。 码本存储单元（120）存储所生成的传输码本。 接收波束形成单元（180）通过接收码本形成接收波束。 码本存储单元（170）存储所生成的接收码本。 空间分集处理器（190）将信道信息发送到接收波束形成单元。
-
公开(公告)号：KR1020130053769A
公开(公告)日：2013-05-24
申请号：KR1020110119394
申请日：2011-11-16
Applicant: 숭실대학교산학협력단
Abstract: PURPOSE: A communication service providing device using a TV(TeleVision) idle band and a method thereof are provided to enable an idle band wireless station to use a TV idle band for providing a service through a mobile communication network in a mobile communication base station. CONSTITUTION: A wireless station information acquisition unit(120) requests the information of an idle wireless station in order to enable a user terminal to receive a communication service. The wireless station information acquisition unit acquires the information of an available idle wireless station based on a using state of an idle TV band and the current location information of a user terminal. An off-load unit(130) transmits the information of the available idle wireless station to the user terminal. The off-load unit transmits the information of the user terminal to the available idle wireless station. [Reference numerals] (110) Location information acquisition unit; (120) Radio station information acquisition unit; (130) Off-load unit
Abstract translation: 目的：提供使用TV（TeleVision）空闲频带的通信服务提供装置及其方法，以使得空闲频带无线站能够使用TV空闲频带通过移动通信基站中的移动通信网络提供服务。 构成：无线站信息获取单元（120）请求空闲无线站的信息，以使得用户终端能够接收通信服务。 无线站信息获取单元基于空闲TV频带的使用状态和用户终端的当前位置信息来获取可用空闲无线站的信息。 卸载单元（130）将可用的空闲无线站的信息发送到用户终端。 卸载单元将用户终端的信息发送到可用的空闲无线站。 （附图标记）（110）位置信息获取单元; （120）无线电台信息采集单元; （130）卸载单元
-
公开(公告)号：KR101315891B1
公开(公告)日：2013-10-14
申请号：KR1020120077774
申请日：2012-07-17
Applicant: 숭실대학교산학협력단
IPC: H03H17/00
CPC classification number: H03H17/00 , H03H11/00 , H03H17/0238 , H03H17/0241
Abstract: PURPOSE: A recursive type half band filter and a filtering method using the same are provided to replace multilevel half band filter with one half band filter. CONSTITUTION: A recursive type half band filter (100) comprises a first storing part (110), a second storing part (120), a calculating part (130), and a controlling part (140). The first storing part controls first input data among a plurality of input data composed of first input data and second input data, which are sequentially repeated at least once, to be impeded prior to be stored before second input data is inputted. The second storing part stores second input data. The calculating part multiplies the second input data with a predetermined filter coefficient before adding to the first input data, which is stored at the first storing part, for producing output data. Whether the output data is predetermined final output data allows the controlling part to determine the output data as final output data or as new input data. [Reference numerals] (110) First storing part; (120) Second storing part; (130) Calculating part; (141) Input controlling part; (142) Output controlling part; (143) Calculation stage control part; (144) Address control part
Abstract translation: 目的：提供递归型半带滤波器和使用其的滤波方法，以用一个半带滤波器代替多电平半带滤波器。 构成：递归型半带滤波器（100）包括第一存储部分（110），第二存储部分（120），计算部分（130）和控制部分（140）。 第一存储部分控制在输入第二输入数据之前被阻止的在第一输入数据和第二输入数据组成的多个输入数据中的第一输入数据，这些输入数据被顺序重复至少一次。 第二存储部存储第二输入数据。 计算部分将第二输入数据与预定的滤波器系数相乘，然后将其存储在第一存储部分处的第一输入数据相加，以产生输出数据。 输出数据是否是预定的最终输出数据允许控制部分将输出数据确定为最终输出数据或作为新的输入数据。 （附图标记）（110）第一存储部; （120）第二储存部; （130）计算部分; （141）输入控制部分; （142）输出控制部; （143）计算阶段控制部分; （144）地址控制部分
-
公开(公告)号：KR101304849B1
公开(公告)日：2013-09-05
申请号：KR1020120097604
申请日：2012-09-04
Applicant: 숭실대학교산학협력단 , 한국전기연구원
Abstract: PURPOSE: A wireless location measurement server using clock offset correction and a wireless location measurement method using the same are provided to minimize errors of a location estimate result by clock offset by measuring a relative clock frequency rate between beacons and compensating each beacon clock frequency. CONSTITUTION: Compensation pulse information including a clock count number of a first compensation pulse and a second compensation pulse is received from multiple beacons (200) which receive the first compensation pulse and the second compensation pulse from a step node. A relative clock frequency rate for clock offset compensation between the multiple beacons is calculated according to the beacon using a compensation pulse. The multiple beacons receive a location pulse from a tag of a location measurement target and receive location pulse information including the clock count number of the location pulse. A reception time point of the second compensation pulse in which the multiple beacons receive is synchronized with a same time point. Clock count information is calculated according to the beacon using the relative clock frequency rate corresponding to the synchronized time point. [Reference numerals] (1) Compensation pulse; (100) Compensation node; (3) Compensation pulse information packet; (300) Tag; (4) Location pulse; (400) Device (server); (5) Location pulse information packet
Abstract translation: 目的：提供使用时钟偏移校正的无线位置测量服务器和使用其的无线位置测量方法，以通过测量信标之间的相对时钟频率和补偿每个信标时钟频率来最小化由时钟偏移造成的位置估计结果的误差。 构成：从从步骤节点接收第一补偿脉冲和第二补偿脉冲的多个信标（200）接收包括第一补偿脉冲和第二补偿脉冲的时钟计数数的补偿脉冲信息。 使用补偿脉冲根据信标计算多个信标之间的时钟偏移补偿的相对时钟频率。 多个信标从位置测量目标的标签接收位置脉冲，并接收包括定位脉冲的时钟计数数的位置脉冲信息。 多个信标接收的第二补偿脉冲的接收时间点与相同的时间点同步。 使用对应于同步时间点的相对时钟频率，根据信标计算时钟计数信息。 （附图标记）（1）补偿脉冲; （100）补偿节点; （3）补偿脉冲信息包; （300）标签; （4）定位脉冲; （400）设备（服务器）; （5）定位脉冲信息包
-
Patent Agency Ranking
公开(公告)号：KR101244936B1
公开(公告)日：2013-03-20
申请号：KR1020120026736
申请日：2012-03-15
Applicant: 숭실대학교산학협력단 , 한국전기연구원
Abstract: PURPOSE: A clock offset compensation method and an apparatus thereof are provided to minimize an error problem of a location estimation result due to clock offset by compensating a clock frequency of each beacon. CONSTITUTION: A compensation pulse information reception unit(410) receives compensation pulse information from beacons which receive a first compensation pulse and a second compensation pulse from a compensation node. The compensation pulse information includes a clock count number of the first compensation pulse and the second compensation pulse. A location pulse information reception unit(420) receives location pulse information from a plurality of beacons receiving a location pulse from a tag corresponding to a positioning target. A clock offset compensation unit(430) calculates a relative clock frequency ratio by beacon for clock offset compensation between beacons using the compensation pulse information. A clock count compensation unit(440) calculates compensated clock count information between a beacon and a tag by each beacon using the each clock count number and the each relative clock frequency ratio about the first compensation pulse, the second compensation pulse and the location pulse. [Reference numerals] (410) Compensation pulse information reception unit; (420) Location pulse information reception unit; (430) Clock offset compensation unit; (440) Clock count compensation unit
Abstract translation: 目的：提供时钟偏移补偿方法及其装置，以通过补偿每个信标的时钟频率来最小化由于时钟偏移引起的位置估计结果的误差问题。 构成：补偿脉冲信息接收单元（410）从补偿节点接收第一补偿脉冲和第二补偿脉冲的信标接收补偿脉冲信息。 补偿脉冲信息包括第一补偿脉冲和第二补偿脉冲的时钟计数。 位置脉冲信息接收单元（420）从与定位对象相对应的标签接收位置脉冲的多个信标中接收位置脉冲信息。 时钟偏移补偿单元（430）通过使用补偿脉冲信息的信标之间的时钟偏移补偿的信号来计算相对时钟频率比。 时钟计数补偿单元（440）使用每个时钟计数数和关于第一补偿脉冲，第二补偿脉冲和位置脉冲的每个相对时钟频率比，由每个信标计算信标和标签之间的补偿时钟计数信息。 （附图标记）（410）补偿脉冲信息接收单元; （420）位置脉冲信息接收单元; （430）时钟偏移补偿单元; （440）时钟计数补偿单元
-
公开(公告)号：KR101689243B1
公开(公告)日：2016-12-26
申请号：KR1020150044803
申请日：2015-03-31
Applicant: 숭실대학교산학협력단
Abstract: TVWS 기반의식물공장모니터링제어시스템및 방법이개시된다. 식물공장내부또는외부에설치되어환경상태를측정하는센서부, 상기식물공장내부에설치되어재배환경을조성하는작동기, 상기센서부및 상기작동기에 TVWS(TV White Space) 채널을할당하고, 상기 TVWS 채널을통해상기센서부로부터상기환경상태를수신하고, 상기환경상태에대응하여상기식물공장내부의상기재배환경이작물생장최적의환경에도달할수 있도록상기작동기를제어하는제어신호를생성하여상기 TVWS 채널을통해상기작동기로전송하는중앙데이터처리부를포함하는식물공장모니터링제어시스템을제공한다.
Abstract translation: 公开了一种基于电视空白（TVWS）的系统和方法，用于控制工厂的监控，能够减少优化作物生长状况所需的时间和功率，包括：安装在工厂内或室外的传感器单元， 测量环境状态; 安装在工厂内的操作员创造条件; 以及中央数据处理单元，其向传感器单元和操作者分配TVWS信道，通过TWVS信道从传感器单元接收环境状态，并且生成用于控制操作者的控制信号，使得工厂内的生长状况达到 用于生长植物以对应于环境状态的最佳条件，并且通过TVWS信道将所生成的控制信号发送到操作者。
-
公开(公告)号：KR1020140057421A
公开(公告)日：2014-05-13
申请号：KR1020120120720
申请日：2012-10-29
Applicant: 숭실대학교산학협력단
Abstract: The present invention relates to a wireless communication apparatus operated in a dual band triple mode supporting a machine type communication (MTC) service operable in a TV white space area and a cellular frequency band, and an operation method thereof. To this end, the TV white space area and the cellular frequency band representing a dual band are supposed to be an operation frequency band considered in the present invention, and a PAN coordinator and an LTE-advanced base station TV band device (TVBD) essential for a triple mode operation are considered as elements. In addition, an MTC server concept is introduced for providing an individual MTC wireless device user with a smooth service and management. For accurate information provision for an MTC server, interoperability consideration between wireless devices, and an optimal service operation, the present invention has an interactive structure for an individual database (Hereinafter, DB) including a detailed service process structure and information on a service environment considered for each individual triple mode operation process.
Abstract translation: 本发明涉及以双频三重模式操作的无线通信装置及其操作方法，该无线通信装置支持在TV空白区域和蜂窝频带中操作的机器型通信（MTC）服务。 为此，TV空白区域和表示双频带的蜂窝频带被认为是本发明中考虑的操作频带，PAN协调器和LTE高级基站TV频带设备（TVBD）必不可少 对于三重模式操作被认为是元素。 此外，引入了MTC服务器概念，为单个MTC无线设备用户提供顺利的服务和管理。 为了准确地提供MTC服务器的信息，无线设备之间的互操作性考虑和最佳服务操作，本发明具有用于单个数据库（以下称为DB）的交互式结构，其包括详细的服务处理结构和所考虑的服务环境的信息 对于每个单独的三重模式操作过程。
-
公开(公告)号：KR101669084B1
公开(公告)日：2016-10-25
申请号：KR1020100016806
申请日：2010-02-24
Applicant: 삼성전자주식회사 , 숭실대학교산학협력단
CPC classification number: H03H17/0416 , H03H17/0277 , H03H21/0012 , H03H2017/0222 , H03H2017/0477 , H03H2021/0089 , H04B7/155
Abstract: 본발명은이동통신시스템에서주파수변환을위해복수개의주파수변환기를사용하는디지털상하향변환방법에있어서, 입력신호를 FIR 필터링시와동일한크기응답을가지며레빈슨다항식에의해산출되고안정성이보장되는필터계수를가지는크기응답 IIR 필터에의해 IIR 필터링하는단계, 상기크기응답 IIR 필터에의해 IIR 필터링된신호를수신하고비선형적인위상을선형위상으로보정하는필터계수를가지는위상보정 IIR 필터에의해 IIR 필터링하는단계를포함하는것을특징으로하는 IIR 필터를사용하는디지털상하향변환방법및 디지털상하향변환장치에관한것이다.
-
公开(公告)号：KR101327231B1
公开(公告)日：2013-11-11
申请号：KR1020110119394
申请日：2011-11-16
Applicant: 숭실대학교산학협력단
Abstract: TV 유휴대역을 이용한 통신 서비스 제공장치 및 방법이 개시된다. 이동통신망을 통해 사용자 단말로 통신 서비스를 제공하며, 사용자 단말이 TV 유휴대역을 통해 통신 서비스를 제공받도록 하는 이동통신 기지국에 구현된 통신 서비스 제공장치에 있어서, 위치 정보 획득부는 사용자 단말로 위치 정보 요청 메시지를 전송하여 사용자 단말의 현재 위치 정보를 획득한다. 무선국 정보 획득부는 복수의 유휴대역 무선국에 의한 TV 유휴대역의 사용 현황을 관리하는 유휴대역 서버로 현재 위치 정보를 전송하여 사용자 단말이 통신 서비스를 제공받을 수 있는 유휴대역 무선국의 정보를 요청하고, 유휴대역 서버로부터 복수의 유휴대역 무선국 중에서 사용자 단말의 현재 위치 정보 및 TV 유휴대역의 사용 현황을 기초로 결정된 사용 가능한 유휴대역 무선국의 정보를 획득한다. 오프로드부는 사용 가능한 유휴대역 무선국의 정보를 사용자 단말로 전송하고, 사용 가능한 유휴대역 무선국으로 사용자 단말의 정보를 전송한다. 본 발명에 따르면, 이동통신 기지국에 의해 제공되는 통신 서비스를 DTV 수신기를 비롯한 보호되어야 할 방송 보조 서비스, 면허 무선 마이크 및 CATV 헤드엔드에 간섭을 발생시키지 않는 범위에서 TV 유휴대역을 통해 제공함으로써, 광대역 이동통신 네트워크의 데이터를 다른 통신망으로 분산시켜 안정적인 통신 서비스를 제공할 수 있다.
-
-
-
-
-
-
-
-
-
Search Results
15
records
(took 0.022 seconds)
