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公开(公告)号：KR102208672B1
公开(公告)日：2021-01-29
申请号：KR1020140007044
申请日：2014-01-21
Applicant: 한국전자통신연구원
IPC: H04W74/08
Abstract: 무선통신시스템에서의히든노드검출장치및 방법이개시된다. 본발명의일실시예에따른무선통신시스템에서의히든노드검출장치는, 무선채널을공유하는복수의통신장치중, 데이터신호를전송하는제1 통신장치를감지하는감지부와, 상기제1 통신장치의감지에따라, 수신알림신호를생성하여, 상기데이터신호의전송대역과동일한대역을통해, 상기복수의통신장치로송신하는송신부, 및상기수신알림신호의송신이유지되는동안, 상기복수의통신장치중 제2 통신장치로부터데이터전송요청이입력되는경우, 상기데이터전송요청을보류하여, 상기무선채널을통한상기제1 통신장치로부터의상기데이터신호와의충돌을방지하는제어부를포함한다.
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公开(公告)号：KR1020140080721A
公开(公告)日：2014-07-01
申请号：KR1020120146231
申请日：2012-12-14
Applicant: 한국전자통신연구원
IPC: H04J11/00
CPC classification number: H04L27/0006
Abstract: The purpose of the present invention is to provide a spectrum sensing signal detection device and a method thereof reducing errors generated from a discontinuous section in a step of detecting signals in spectrum sensing by easing the discontinuity of signals by adding a fader section at the front and back parts of the discontinuous signals. According to a desirable embodiment of the present invention, the spectrum sensing signal detection device for detecting signals, not continuous signals, for spectrum sensing comprises: an adding part for adding a fader section at the front and back parts of a capture section generated when data is captured for detecting the signals; and a detection part for detecting signals of the spectrum sensing using fast fourier transform (FFT) in the data where the fader section is added.
Abstract translation: 本发明的目的是提供一种频谱感测信号检测装置及其方法，其通过在前端添加推子部分来减轻信号的不连续性，从而减少在频谱感测中检测信号的步骤中从不连续部分产生的误差，以及 背部不连续信号。 根据本发明的期望的实施例，用于检测用于频谱感测的信号而不是连续信号的频谱感测信号检测装置包括：添加部分，用于在数据生成时捕获部分的前部和后部添加推子部分 被捕获用于检测信号; 以及检测部分，用于在添加推子部分的数据中使用快速傅里叶变换（FFT）来检测频谱感测的信号。
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公开(公告)号：KR1020140060407A
公开(公告)日：2014-05-20
申请号：KR1020120126702
申请日：2012-11-09
Applicant: 한국전자통신연구원
CPC classification number: H04W56/0035 , H04J11/00 , H04L7/0016 , H04W56/004
Abstract: Disclosed are an apparatus and a method for synchronizing a reception signal in a cognitive radio system. According to the present invention, the apparatus for synchronizing the reception signal comprises a time synchronization unit for detecting a preamble signal and for estimating the start point of the preamble signal; a frequency synchronization unit for estimating the frequency offset of an LP signal within the preamble signal received based on the start point of the estimated preamble signal; a transmission mode detection unit for detecting a transmission mode based on the result of a cross-correlation function executed between between the received LP signal and the LP signal of three transmission modes; and an offset compensation unit for compensating for a frequency offset component of a data signal corresponding to a data area received after the LP signal and the LP signal received based on the estimated frequency offset.
Abstract translation: 公开了一种在认知无线电系统中同步接收信号的装置和方法。 根据本发明，用于同步接收信号的装置包括：时间同步单元，用于检测前置信号并估计前置信号的起始点; 频率同步单元，用于基于所估计的前导码信号的开始点估计所接收的前导码信号内的LP信号的频率偏移; 传输模式检测单元，用于基于在所接收的LP信号和三个传输模式的LP信号之间执行的互相关函数的结果来检测传输模式; 以及偏移补偿单元，用于基于所估计的频率偏移来补偿对应于接收到的LP信号和接收的LP信号之后的数据区域的数据信号的频率偏移分量。
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公开(公告)号：KR1020130051396A
公开(公告)日：2013-05-20
申请号：KR1020120073129
申请日：2012-07-05
Applicant: 한국전자통신연구원
CPC classification number: H04W72/0453 , H04W74/08
Abstract: PURPOSE: A communication method between the terminals in an infrastructure network and a resource assignment method thereof are provided to generate a small network in a specific area on a network including a wide coverage of an infrastructure network. CONSTITUTION: A terminal receives downlink data from a base station in a first time section by using a specific frequency band(910). The terminal transmits uplink data to the base station in a second time section by using the specific frequency band(920). The second time section is separated from the first time section. The terminal performs communication with one or more other terminals in a third time section by using the specific frequency band(930). The third time section is separated from the first and the second time section. [Reference numerals] (910) Receive resource allocation information; (920) Determine whether to communicate with another terminal; (930) Communicate with another terminal; (AA) Start; (BB) End
Abstract translation: 目的：提供基础设施网络中的终端之间的通信方法及其资源分配方法，以在包括基础设施网络的广泛覆盖的网络的特定区域中生成小型网络。 构成：终端通过使用特定频带（910）在第一时间段中从基站接收下行链路数据。 终端通过使用特定频带（920）在第二时间段向基站发送上行链路数据。 第二个时间段与第一个时间段分开。 终端通过使用特定频带（930）在第三时间段中与一个或多个其他终端进行通信。 第三时间段与第一和第二时间段分开。 （附图标记）（910）接收资源分配信息; （920）确定是否与另一终端进行通信; （930）与另一个终端进行通信; （AA）开始; （BB）结束
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公开(公告)号：KR1020120125806A
公开(公告)日：2012-11-19
申请号：KR1020110043471
申请日：2011-05-09
Applicant: 한국전자통신연구원
CPC classification number: H04B7/024 , H04J11/0033 , H04L5/0062 , H04L27/0006 , H04B7/0413 , H04B7/0617 , H04L25/0242 , H04L25/0328 , H04W16/14
Abstract: PURPOSE: A secondary transmitting station included in a cognitive radio communication system and a communication method of the station are provided to broaden a spectrum bandwidth selected by a secondary user by using a spectrum band not used by a primary user and a spectrum band used by the primary user together. CONSTITUTION: A secondary transmitting station estimates an interference channel between the secondary transmitting station and a primary user at each of one or more first spectrum bands used by a primary system(330). The secondary transmitting station calculates an orthogonal projection matrix(340). The secondary transmitting station calculates an effective channel between the secondary transmitting station and a secondary receiving station. The secondary transmitting station selects an index of an optimized spectrum band from one or more first spectrum bands based on the orthogonal projection matrix and the effective channel(350). [Reference numerals] (310) Sensing all spectrum bands available for primary users; (320) Spectrum band k is in use?; (330) Estimating interference channel g(k); (340) Calculating an orthogonal projection matrix P_g(k); (350) Selecting index k^ of an optimized spectrum band; (360) Regulating the covariance, R^_s, of a transmission signal; (370) Orthogonal projection matrix P_g(k) = identical matrix I_Nt; (380) Storing in order in a backup channel list, beginning the index of the optimized spectrum band; (AA) Start; (BB) End
Abstract translation: 目的：提供包括在认知无线电通信系统中的辅助发射台和站的通信方法，以通过使用主用户未使用的频谱带和由主用户使用的频谱带来扩大由次用户选择的频谱带宽 主要用户在一起 构成：辅助发射站在由主系统（330）使用的一个或多个第一频谱带中的每一个估计第二发射台与主用户之间的干扰信道。 二次发射台计算正交投影矩阵（340）。 二次发射站计算二次发射站和次要接收站之间的有效信道。 第二发射台基于正交投影矩阵和有效信道（350）从一个或多个第一频谱带中选择优化的频谱带的索引。 （附图标记）（310）感测可用于主要用户的所有频谱带; （320）频带k在使用中？ （330）估计干扰信道g（k）; （340）计算正交投影矩阵P_g（k）; （350）选择优化频谱带的索引k ^ （360）调节传输信号的协方差R ^ _s; （370）正交投影矩阵P_g（k）=相同矩阵I_Nt; （380）在备份通道列表中按顺序存储，开始优化频谱带的索引; （AA）开始; （BB）结束
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Patent Agency Ranking
公开(公告)号：KR1020120056641A
公开(公告)日：2012-06-04
申请号：KR1020100118273
申请日：2010-11-25
Applicant: 한국전자통신연구원
CPC classification number: H04W8/005 , H04W24/10 , H04W48/16 , H04L43/0811
Abstract: PURPOSE: A heterogeneous communication system detection method and apparatus thereof are provided to determine kinds of heterogeneous communication system based on a system kind database by including silent duration information corresponding to the system kind database. CONSTITUTION: An RF(Radio Frequency) signal reception unit(201) receives signals from a specific communication system. A silent duration evaluation unit(202) evaluates silent duration between frames based on the received signals. A system kind determination unit(203) determines kinds of the specific communication system based on the evaluated silent duration. The specific communication system transmits data of a frame unit. The silent duration is respectively applied to the communication systems.
Abstract translation: 目的：提供异构通信系统检测方法及其装置，通过包括对应于系统种类数据库的静默持续时间信息来确定基于系统类型数据库的异构通信系统的种类。 构成：RF（射频）信号接收单元（201）从特定通信系统接收信号。 无声持续时间评估单元（202）基于所接收的信号来评估帧之间的无声持续时间。 系统种类确定单元（203）基于所评估的无声持续时间确定特定通信系统的种类。 特定通信系统发送帧单元的数据。 静音持续时间分别应用于通信系统。
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公开(公告)号：KR1020120040642A
公开(公告)日：2012-04-27
申请号：KR1020110027393
申请日：2011-03-28
Applicant: 한국전자통신연구원
IPC: H04W28/06 , H04L12/801 , H03M7/30
Abstract: PURPOSE: A packet transmission method in a communication system and apparatus thereof are provided to improve transmission efficiency in a communication system by reducing protocol overheads. CONSTITUTION: A first apparatus requests permission to use a compressed packet before a second apparatus transmits a message(S210). The second apparatus transmits a specific preamble with the message for approving the usage of the compressed packet(S220). When the detection preparation of the specific preamble is completed, the first apparatus requests the packet to the second apparatus(S230). The second apparatus transmits the compressed packet by using the specific preamble(S240).
Abstract translation: 目的：提供通信系统及其装置中的分组传输方法，以通过减少协议开销提高通信系统中的传输效率。 构成：在第二装置发送消息之前，第一装置请求使用压缩包的许可（S210）。 第二装置发送具有用于批准压缩分组的使用的消息的特定前导码（S220）。 当特定前同步码的检测准备完成时，第一装置向第二装置请求分组（S230）。 第二装置通过使用特定前导码发送压缩分组（S240）。
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公开(公告)号：KR1020150128388A
公开(公告)日：2015-11-18
申请号：KR1020140055724
申请日：2014-05-09
Applicant: 한국전자통신연구원 , 경희대학교 산학협력단
IPC: H04B7/26
CPC classification number: H04B7/2603
Abstract: 본발명은셀룰러네트워크에서의단말간(Device-to-Device; D2D) 직접통신에관한것이다. 상기와같은과제를해결하기위한본 발명의일 실시예에따른셀룰러네트워크상에서의통신방법은제1 단말이기지국에대하여제2 단말과의통신을위한스케줄링요청을전송하는단계, 상기제1 단말이상기제2 단말과통신하기위한제어정보를상기기지국으로부터수신하는단계, 및상기제1 단말이상기제어정보에기초하여상기제2 단말에대하여데이터를물리적하향링크공유채널(PDSCH)을통해전송하는단계를포함한다. .
Abstract translation: 本发明涉及蜂窝网络中的设备到设备（D2D）通信。 为了解决该问题，根据本发明实施例的蜂窝网络上的通信方法包括以下步骤：第一终端向基站发送用于与第二终端的通信的调度请求; 所述第一终端从所述基站接收用于与所述第二终端进行通信的控制信息; 并且所述第一终端基于所述控制信息经由物理下行链路共享信道（PDSCH）向所述第二终端发送数据。
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公开(公告)号：KR1020150091837A
公开(公告)日：2015-08-12
申请号：KR1020140012567
申请日：2014-02-04
Applicant: 한국전자통신연구원
IPC: H04W72/12
CPC classification number: H04W48/12 , H04J11/0053 , H04L5/0073 , H04W28/08 , H04W48/18 , H04W72/00 , H04W88/06
Abstract: 본 발명은 이종 네트워크 환경에서 무선단말기의 네트워크 자원 관리 방법에 관한 것으로, 본 발명에 따른 네트워크 자원 관리 방법은 이종 네트워크 환경에서 접속 가능한 하나 이상의 네트워크를 검색하는 단계와, 상기 네트워크 검색을 통해 검색된 네트워크들의 주기 정보를 획득하는 단계와, 상기 주기 정보를 토대로 상기 검색된 네트워크들의 공존 관리 주기를 결정하는 단계와, 상기 공존 관리 주기에 따라 검색된 네트워크들 중 데이터 전송에 이용할 하나 이상의 네트워크를 할당하고 그 할당된 하나 이상의 네트워크의 전송 관리 주기를 결정하는 단계와, 상기 공존 관리 주기 및 전송 관리 주기에 따라 상기 검색된 네트워크의 자원을 관리하는 단계를 포함한다.
Abstract translation: 本发明涉及一种用于在异构网络环境中管理无线终端的网络资源的方法。 根据本发明的用于管理网络资源的方法包括以下步骤：搜索在异构网络环境中可访问的一个或多个网络; 通过网络搜索获取网络的周期信息; 基于所述周期信息确定所搜索的网络的共存管理周期; 分配一个或多个网络，用于根据共存管理周期从所搜索的网络发送数据，以及确定所分配的网络的传输管理周期; 并根据共存管理期和传输管理周期来管理搜索到的网络的资源。
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公开(公告)号：KR1020140075958A
公开(公告)日：2014-06-20
申请号：KR1020120143775
申请日：2012-12-11
Applicant: 한국전자통신연구원
CPC classification number: H04W72/085 , H04W16/14 , H04W64/00
Abstract: The purpose of the present invention is to provide a channel information providing method, a channel information providing database server, and a channel information providing system, which receive channel quality information from a cognitive radio terminal receiving channel information based on location information, and facilitate efficient use of channels using the received information. The channel information providing method according to a preferable embodiment of the present invention, as a channel information providing method using a database server providing channel information to the cognitive radio terminal based on the location information, comprises: a provision step of providing information on a channel to at least one cognitive radio terminal; a reception step of receiving collected information on quality of the channel from the at least one cognitive radio terminal; and a determination step of updating the information on the channel provided in the provision step by using the information received in the reception step.
Abstract translation: 本发明的目的是提供一种信道信息提供方法，信道信息提供数据库服务器和信道信息提供系统，其从认知无线电终端接收基于位置信息的信道信息的信道质量信息，并且有助于有效地 使用收到的信息使用频道。 根据本发明的优选实施例的信道信息提供方法作为使用基于位置信息向认知无线终端提供信道信息的数据库服务器的信道信息提供方法，包括：提供步骤，在信道上提供信息 至少一个认知无线电终端; 从所述至少一个认知无线电终端接收关于所述信道质量的收集信息的接收步骤; 以及确定步骤，通过使用在接收步骤中接收的信息来更新提供步骤中提供的信道上的信息。
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