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公开(公告)号：KR1020140060443A
公开(公告)日：2014-05-20
申请号：KR1020120127027
申请日：2012-11-09
Applicant: 한국전자통신연구원
CPC classification number: H04L27/2657 , H04L25/03821 , H04L27/2691 , H04W72/0453 , H04B15/00 , H04L25/0328 , H04W72/082 , H04W72/12
Abstract: In order to reduce interference that may be generated when a plurality of signals having different subcarrier intervals are received, provided are a method of controlling a signal having a larger subcarrier interval to be suitable for a signal having a smaller subcarrier interval and a method of removing CFO interference. According to an embodiment of the present invention, the subcarrier intervals of a plurality of signals to be transmitted by wireless terminals are compared with each other, and signals are designed so that a signal having the largest subcarrier interval may be repeatedly transmitted. Therefore, interference that may be generated among different kinds of signals when the base station simultaneously receives the different kinds of signals to perform Fourier transform may be mitigated. In addition, interference caused by a CFO may be removed by previously compensating the CFO estimated in a time domain to perform Fourier transform.
Abstract translation: 为了减少当接收到具有不同子载波间隔的多个信号时可能产生的干扰，提供了一种控制具有较大子载波间隔的信号以适合于具有较小子载波间隔的信号的方法和一种去除 CFO干扰。 根据本发明的实施例，将由无线终端发送的多个信号的子载波间隔相互比较，并且设计信号，使得可以重复发送具有最大子载波间隔的信号。 因此，可以减轻当基站同时接收不同种类的信号进行傅立叶变换时在不同种类的信号之间产生的干扰。 另外，由CFO导致的干扰可以通过预先补偿在时域中估计的CFO来执行傅立叶变换来消除。
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公开(公告)号：KR101344060B1
公开(公告)日：2014-01-15
申请号：KR1020070011013
申请日：2007-02-02
CPC classification number: H04B7/26 , H04W28/06 , H04W72/042
Abstract: 자원 할당 장치는 복수의 무선 자원에 대한 자원 할당 정보를 단말에 전송하기 위해서, 복수의 무선 자원 중에서 자원 할당 정보의 전송 이전과 다르게 할당되는 무선 자원을 무선 자원 패턴 시퀀스 상에 표시하고, 무선 자원 패턴 시퀀스를 기준으로 하는 복수의 무선 자원에 대한 자원 할당 정보를 생성하고, 무선 자원 패턴 시퀀스와 자원 할당 정보 또는 무선 자원 패턴 시퀀스에 대응하는 압축 패턴 시퀀스와 자원 할당 정보를 프레임을 통해 단말에 전송한다.
OFDMA, pattern, resource allocation-
公开(公告)号：KR1020130051350A
公开(公告)日：2013-05-20
申请号：KR1020110116644
申请日：2011-11-09
Applicant: 한국전자통신연구원
CPC classification number: H04W56/001 , H04L7/0008 , H04W84/18
Abstract: PURPOSE: A mesh node synchronization method in a wireless mesh system is provided to modulate a preamble of a neighbor node and broadcasting information. CONSTITUTION: An automatic gain controller transmits a network setup signal received from a neighbor node to a PHY(PHYsical Layer)(S531b). The PHY synchronizes time or frequency by using a preamble of the network setting signal(S532b). The PHY transmits the location information of a starting point of a super frame of the network setting signal to a DSP(Digital Signal Processor). The DSP synchronizes the clock of a mesh node through the location information. [Reference numerals] (AA) Automatic gain control unit; (BB) Power on; (DD) Network setting signal searching time; (EE) Location information transfer of network setting signal/super frame starting point; (S520,CC) Initial network setting mode request; (S531b) Network setting signal/PPA_en signal transfer; (S532b) Time/frequency synchronization network setting signal decoding; (S533b) Super frame starting point correction; (S540,FF) Normal network setting mode request; (S550b) Network entrance
Abstract translation: 目的：提供无线网状系统中的网格节点同步方法来调制邻居节点的前同步码和广播信息。 构成：自动增益控制器将从邻居节点接收的网络建立信号发送到PHY（PHY层）（S531b）。 PHY通过使用网络设置信号的前同步码来同步时间或频率（S532b）。 PHY将网络设置信号的超帧的起点的位置信息发送到DSP（数字信号处理器）。 DSP通过位置信息同步网状节点的时钟。 （附图标记）（AA）自动增益控制单元; （BB）开机; （DD）网络设置信号搜索时间; （EE）网络设置信号/超帧起点的位置信息传输; （S520，CC）初始网络设置模式请求; （S531b）网络设定信号/ PPA_en信号传送; （S532b）时间/频率同步网络设置信号解码; （S533b）超帧起点校正; （S540，FF）正常网络设置模式请求; （S550b）网络入口
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公开(公告)号：KR1020130048148A
公开(公告)日：2013-05-09
申请号：KR1020120106635
申请日：2012-09-25
Applicant: 한국전자통신연구원 , 조선대학교산학협력단
Abstract: PURPOSE: A terminal and a communication method thereof are provided to offer a wireless communication service even if there is damage to a base station. CONSTITUTION: A processor(510) includes a terminal mode unit and a relay mode unit which are connected through an internal interface. The processor receives a first message from a base station. The first message is a command for being operated as a relay mode which is supported by the relay mode unit. The processor sets the base station and a relay link. The terminal mode unit is operated as a low rank terminal of the relay mode unit through the internal interface. [Reference numerals] (510) Processor; (520) Memory; (530) RF module
Abstract translation: 目的：提供一种终端及其通信方法，即使对基站有破坏也提供无线通信服务。 构成：处理器（510）包括通过内部接口连接的终端模式单元和中继模式单元。 处理器从基站接收第一消息。 第一个消息是作为由中继模式单元支持的中继模式操作的命令。 处理器设置基站和中继链路。 终端模式单元通过内部接口作为中继模式单元的低级端子进行操作。 （附图标记）（510）处理器; （520）内存; （530）RF模块
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公开(公告)号：KR1020130048147A
公开(公告)日：2013-05-09
申请号：KR1020120106634
申请日：2012-09-25
Applicant: 한국전자통신연구원 , 조선대학교산학협력단
Abstract: PURPOSE: A repeater communication method, a terminal, and a communication method thereof are provided to offer a wireless communication service when a base station gets damaged. CONSTITUTION: A process(132) is connected to an RF(Radio Frequency) module. When scanning section information is requested from the base station, the process transmits a message including the scanning section information to the lower terminal. The process receives wireless synchronization from an upper base station according to the scanning section information. The process requests the scanning section information to the upper base station. [Reference numerals] (132) Processor; (134) Memory; (136) Module
Abstract translation: 目的：提供中继器通信方法，终端及其通信方法，以在基站损坏时提供无线通信服务。 构成：过程（132）连接到RF（射频）模块。 当从基站请求扫描部分信息时，处理将包括扫描部分信息的消息发送到下部终端。 该处理根据扫描部分信息从上基站接收无线同步。 该处理请求扫描部分信息到上位基站。 （附图标记）（132）处理器; （134）记忆; （136）模块
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Patent Agency Ranking
公开(公告)号：KR1020130048084A
公开(公告)日：2013-05-09
申请号：KR1020110113017
申请日：2011-11-01
Applicant: 한국전자통신연구원
CPC classification number: H04W72/0406 , H04J11/00 , H04W84/18
Abstract: PURPOSE: A resource assignment device of a wireless communication system and a method thereof are provided to prevent the collision between time shaft resources and frequency shaft resources in a wireless communication system based on an OFDMA(Orthogonal Frequency Division Multiple Access). CONSTITUTION: A reception unit(720) receives a control message from a hop node of a communication node. An assignment control unit(730) collects the resource assignment information of two hop nodes and one hop node through the control message. The assignment control unit selects assignable transmission resources and assignable reception resources using the resource assignment information of the nodes. The assignment control unit individually assigns the transmission resources and reception resources to an assignable reception resource and the assignable transmission resource. [Reference numerals] (710) Transmission unit; (720) Reception unit; (730) Assignment control unit
Abstract translation: 目的：提供无线通信系统的资源分配装置及其方法，以防止基于OFDMA（正交频分多址）的无线通信系统中的时间轴资源与频率轴资源之间的碰撞。 构成：接收单元（720）从通信节点的跳跃节点接收控制消息。 分配控制单元（730）通过控制消息收集两跳节点和一跳节点的资源分配信息。 分配控制单元使用节点的资源分配信息来选择可分配的发送资源和可分配的接收资源。 分配控制单元将发送资源和接收资源分别分配给可分配的接收资源和可分配的发送资源。 （附图标记）（710）传输单元; （720）接待单位; （730）分配控制单元
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公开(公告)号：KR1020130029355A
公开(公告)日：2013-03-22
申请号：KR1020120101914
申请日：2012-09-14
Applicant: 한국전자통신연구원
CPC classification number: H04W56/00 , G01S19/14 , G04R20/02 , H04W74/0816
Abstract: PURPOSE: A direct communication method and a terminal thereof are provided to acquire synchronization by transmitting reference time to a plurality of terminals. CONSTITUTION: A processor(1310) selects synchronization information acquiring reference time according to the priority of synchronization information. The processor acquires the reference time through the selected synchronization information. The priority is followed by first synchronization information, second synchronization information, and third synchronization information. The first synchronization information received from a base station. The second synchronization information is received from a GPS(Global Positioning System). The third synchronization information is received from a small terminal, the base station, or the GPS. [Reference numerals] (1310) Processor; (1320) Memory; (1330) RF module
Abstract translation: 目的：提供直接通信方法及其终端，以通过将参考时间发送到多个终端来获取同步。 构成：处理器（1310）根据同步信息的优先级，选择获取基准时间的同步信息。 处理器通过所选择的同步信息获取参考时间。 优先级之后是第一同步信息，第二同步信息和第三同步信息。 从基站接收的第一同步信息。 从GPS（全球定位系统）接收第二同步信息。 从小型终端，基站或GPS接收第三同步信息。 （1310）处理器; （1320）记忆; （1330）RF模块
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公开(公告)号：KR101214639B1
公开(公告)日：2012-12-21
申请号：KR1020090034637
申请日：2009-04-21
Applicant: 한국전자통신연구원
IPC: H04L1/18
CPC classification number: H04L1/1822 , H04L1/1893
Abstract: 재전송제어방법에서, HARQ 버스트를수신측으로전송하는 HARQ 처리를수행한다. HARQ 버스트의전송이성공하지못한상태에서 HARQ 버스트에대한 HARQ 처리가종료하는경우, HARQ 버스트에대응하는 ARQ 블록의전송을시작한다.
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公开(公告)号：KR1020120126448A
公开(公告)日：2012-11-21
申请号：KR1020110044231
申请日：2011-05-11
Applicant: 한국전자통신연구원
CPC classification number: H04W56/0045 , H04J11/005 , H04L27/2646 , H04L27/2665 , H04L27/2675 , H04L27/2691 , H04B7/24 , H04B7/2662 , H04L7/00 , H04L27/26 , H04W56/00
Abstract: PURPOSE: A synchronization device in a wireless network system and a method thereof are provided to set a distribution synchronization mode by considering an electron delay and mobility depending on a distance between nodes. CONSTITUTION: A node performs a ranging procedure with neighbor nodes(S602). The node estimates a propagation delay value depending on a distance the neighbor nodes through the ranging procedure(S604). When a difference between a maximum propagation delay value and a minimum propagation delay value of the propagation delay value is greater than a CP(Cyclic Prefix) section(Tcp), the node requests to change signal transmission timing to the neighbor node having the maximum propagation delay value or the neighbor node having the minimum propagation delay value(S606,S608). [Reference numerals] (AA) Yes; (BB) No; (S602) Ranging procedure; (S604) Estimating a propagation delay relative to neighboring nodes; (S607) Setting an FFT starting point; (S608) Requesting change of transmission timing; (S610) Change is accepted?; (S612) Measuring interference; (S614) Interference amount > reference value; (S618) Requesting forcible change of a clock value; (S620) Setting the FFT starting point as the minimum propagation delay value
Abstract translation: 目的：提供一种无线网络系统中的同步装置及其方法，用于通过根据节点之间的距离考虑电子延迟和移动性来设置分布同步模式。 规定：节点与邻居节点执行测距过程（S602）。 该节点根据相邻节点通过测距过程的距离估计传播延迟值（S604）。 当传播延迟值的最大传播延迟值和最小传播延迟值之间的差大于CP（循环前缀）部分（Tcp）时，节点请求将具有最大传播的相邻节点的信号传输定时改变 延迟值或具有最小传播延迟值的邻居节点（S606，S608）。 （附图标记）（AA）是; （BB）否 （S602）测距程序; （S604）估计相对于相邻节点的传播延迟; （S607）设置FFT起点; （S608）请求更改发送定时; （S610）接受变更？ （S612）测量干扰; （S614）干扰量>参考值; （S618）请求强制更改时钟值; （S620）将FFT起始点设置为最小传播延迟值
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公开(公告)号：KR1020120125156A
公开(公告)日：2012-11-14
申请号：KR1020120022060
申请日：2012-03-02
Applicant: 한국전자통신연구원
Abstract: PURPOSE: A relay method of a base station and a communication method of a terminal are provided to perform a role of a relay station by setting a relay link between the base station and an adjacent base station when a backhaul link of the base station is damaged. CONSTITUTION: When a backhaul of a base station(110) is damaged, the base station is changed to an RS(Relay Station) operation mode. The base station requests a handover for another base station(120) to a lower RS(310) or a lower terminal(210). The lower terminal performs the handover for the base station or stops communication for a while until relay link settings of the base station are completed. The lower RS stops the communication to open a relay link with the base station. [Reference numerals] (AA) Back haul link; (BB,CC,DD) Relay link
Abstract translation: 目的：提供基站的中继方法和终端的通信方法，以便当基站的回程链路被损坏时，通过在基站和相邻基站之间设置中继链路来执行中继站的作用 。 构成：当基站（110）的回程损坏时，基站变为RS（中继站）运行模式。 基站请求另一基站（120）到下RS（310）或下终端（210）的切换。 下位终端执行基站的切换或停止通信一段时间，直到基站的中继链路设置完成为止。 下RS停止通信以与基站打开中继链路。 （附图标记）（AA）后行链路; （BB，CC，DD）中继链路
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