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98 条记录 (耗时 0.034 秒)

    METHOD OF PERFORMING DISTRIBUTED SYNCHRONIZATION IN AD HOC NETWORK SYSTEM
    82.
    发明申请
    METHOD OF PERFORMING DISTRIBUTED SYNCHRONIZATION IN AD HOC NETWORK SYSTEM 审中-公开
    在广域网络系统中执行分布式同步的方法

    公开(公告)号：US20130159554A1

    公开(公告)日：2013-06-20

    申请号：US13550124

    申请日：2012-07-16

    申请人： Ji Hung KIM ,  Jung Hyun Kim ,  Hyun Jae Kim ,  Kwang Jae Lim ,  Dong Seung Kwon

    发明人： Ji Hung KIM ,  Jung Hyun Kim ,  Hyun Jae Kim ,  Kwang Jae Lim ,  Dong Seung Kwon

    IPC分类号： G06F15/16

    CPC分类号： H04W56/0055 ,  H04L27/2665 ,  H04L27/2678 ,  H04L27/2688 ,  H04L27/2691 ,  H04W84/18

    摘要： There is provided a method of performing distributed synchronization in an Ad hoc network system. The method includes receiving a signal, including a reception time point change period, through a plurality of nodes, changing a reception time point at which the signal is received through the plurality of nodes within the reception time point change period so that the reception time point is included in a preset Cyclic Prefix (CP) period, changing a Fast Fourier Transform (FFT) start time point which is a time point at which data starts being recovered based on the changed reception time point, and changing the reference point of the transmission time point of each of the plurality of nodes based on a difference value between the preset reference point of the FFT start time point and the changed FFT start time point. The method has smaller overhead.

    摘要翻译： 提供了一种在Ad hoc网络系统中执行分布式同步的方法。 该方法包括通过多个节点接收包括接收时间点变化周期的信号，在接收时间点改变周期内通过多个节点改变接收信号的接收时间点，使得接收时间点 被包括在预设的循环前缀（CP）周期中，基于改变的接收时间点改变作为数据开始恢复的时间点的快速傅里叶变换（FFT）开始时间点，并且改变传输的参考点 基于FFT开始时间点的预设参考点和改变的FFT开始时间点之间的差值，多个节点中的每一个节点的时间点。 该方法的开销较小。

    COMMUNICATION APPARATUS AND COMMUNICATION METHOD
    83.
    发明申请
    COMMUNICATION APPARATUS AND COMMUNICATION METHOD 审中-公开
    通信设备和通信方法

    公开(公告)号：US20110188454A1

    公开(公告)日：2011-08-04

    申请号：US13020431

    申请日：2011-02-03

    申请人： Jihyung Kim ,  Dong Hyn Ahn ,  Kwang Jae Lim ,  DongSeung Kwon

    发明人： Jihyung Kim ,  Dong Hyn Ahn ,  Kwang Jae Lim ,  DongSeung Kwon

    IPC分类号： H04W56/00

    CPC分类号： H04W56/00

    摘要： A communication apparatus which can operate as a cluster header and a node is disclosed. The cluster header transmits a cluster header preamble signal in a first time interval of the frame, and transmits a cluster control signal in a second time interval of the frame. The cluster header receives a node ranging signal in a third time interval of the frame, receives a node preamble in a fourth time interval of the frame, and receives a node control signal in a fifth time interval of the frame. The cluster header can determine the operation mode of a reported node.

    摘要翻译： 公开了可以作为簇头和节点操作的通信装置。 簇头在帧的第一时间间隔中发送簇头前导信号，并且在帧的第二时间间隔中发送簇控制信号。 簇头在帧的第三时间间隔中接收节点测距信号，在帧的第四时间间隔中接收节点前导码，并在该帧的第五时间间隔中接收节点控制信号。 集群头可以确定报告节点的操作模式。

    Method for transmitting preamble, synchronization method of wireless node and apparatus thereof
    84.
    发明授权
    Method for transmitting preamble, synchronization method of wireless node and apparatus thereof 有权
    发送前导码的方法，无线节点的同步方法及其装置

    公开(公告)号：US08929314B2

    公开(公告)日：2015-01-06

    申请号：US13551160

    申请日：2012-07-17

    申请人： Jung Hyun Kim ,  Ji Hung Kim ,  Hyun Jae Kim ,  Kwang Jae Lim ,  Dong Seung Kwon

    发明人： Jung Hyun Kim ,  Ji Hung Kim ,  Hyun Jae Kim ,  Kwang Jae Lim ,  Dong Seung Kwon

    IPC分类号： H04W56/00

    CPC分类号： H04W56/001

    摘要： The embodiments of the present invention are directed to a method and apparatus that synchronize radio nodes using preambles in a radio communication system. An embodiment of the present invention relates to a method of transmitting preambles by a radio node. The method includes generating a first preamble indicating a system bandwidth and a carrier configuration, generating a second preamble indicating a segment identifier used for obtaining a node identifier, allocating the first preamble to a first preamble carrier set, allocating the second preamble to a second preamble carrier set corresponding to the segment identifier, and transmitting the first preamble to a receiving node through the first preamble carrier set and the second preamble to the receiving node through the second preamble carrier set.

    摘要翻译： 本发明的实施例涉及一种在无线电通信系统中使用前导码同步无线电节点的方法和装置。 本发明的实施例涉及一种由无线节点发送前导码的方法。 该方法包括生成指示系统带宽和载波配置的第一前导码，产生指示用于获得节点标识符的分段标识符的第二前导码，将第一前同步码分配给第一前导码载波集合，将第二前同步码分配给第二前同步码 载波集合，并且通过第一前导码载波集合和第二前导码通过第二前导码载波集合将第一前导码发送到接收节点。

    METHOD FOR AVOIDING INTERFERENCE IN MOBILE COMMUNICATION SYSTEM
    88.
    发明申请
    METHOD FOR AVOIDING INTERFERENCE IN MOBILE COMMUNICATION SYSTEM 审中-公开
    避免移动通信系统干扰的方法

    公开(公告)号：US20110143674A1

    公开(公告)日：2011-06-16

    申请号：US13058703

    申请日：2009-06-29

    申请人： Kwang Jae Lim ,  Chui Sik Yoon

    发明人： Kwang Jae Lim ,  Chui Sik Yoon

    IPC分类号： H04B15/00

    CPC分类号： H04W72/082

    摘要： Provided is an interference avoiding method in a mobile communication system. A base station detects a preamble signal of another base station during an initial setting process or a time frame of a downlink transmission section to detect an adjacent interference base station or receive a report of information on the adjacent interference base station detected by a mobile station from the mobile station. When an adjacent interference base station is detected, the base station sets a common bandwidth from among the entire usage bandwidth as an interference avoiding bandwidth according to a defined rule. The base station allocates a subchannel in the interference avoiding bandwidth to a mobile station in a cell edge area adjacent to a cell of an interference base station.

    摘要翻译： 提供了一种移动通信系统中的干扰避免方法。 基站在初始设置处理期间检测另一基站的前导信号，或者在下行链路发送部分的时间帧中检测相邻干扰基站，或者接收由移动台检测到的相邻干扰基站的信息的报告 移动台。 当检测到相邻干扰基站时，根据规定的规则，基站从整个使用带宽中设定公共带宽作为干扰避免带宽。 基站将干扰避免带宽中的子信道分配给与干扰基站的小区相邻的小区边缘区域中的移动台。

    Method and apparatus for access control in wireless communication system
    89.
    发明授权
    Method and apparatus for access control in wireless communication system 有权
    无线通信系统中访问控制的方法和装置

    公开(公告)号：US08767578B2

    公开(公告)日：2014-07-01

    申请号：US13326822

    申请日：2011-12-15

    申请人： Wooram Shin ,  Hyun-jae Kim ,  Anseok Lee ,  Keun Young Kim ,  Kwang Jae Lim ,  Dong Seung Kwon

    发明人： Wooram Shin ,  Hyun-jae Kim ,  Anseok Lee ,  Keun Young Kim ,  Kwang Jae Lim ,  Dong Seung Kwon

    IPC分类号： H04L12/52

    CPC分类号： H04W72/1278 ,  H04W48/08 ,  H04W74/008 ,  H04W84/18

    摘要： In an orthogonal frequency division multiple access (OFDMA)-based wireless mesh network, a communication node receives information regarding a next transmission time of a 1-hop node and a 2-hop node through the 1-hop node, calculates next transmission intervals of the 1-hop node and the 2-hop node, determines a next transmission time of the communication node by using the next transmission intervals of the 1-hop node and the 2-hop node, and then transmits, to an 1-hop node of the communication node, the information of the next transmission time together with the information of the transmission time of the 1-hop node, received from the 1-hop node.

    摘要翻译： 在基于正交频分多址（OFDMA）的无线网状网络中，通信节点通过1跳节点接收关于1跳节点和2跳节点的下一个传输时间的信息，计算下一个传输间隔 1跳节点和2跳节点通过使用1跳节点和2跳节点的下一个传输间隔来确定通信节点的下一个传输时间，然后发送到1跳节点 通信节点的信息，下一个传输时间的信息以及从1跳节点接收的1跳节点的传输时间的信息。

    Method and apparatus of adaptive transmission signal detection based on signal-to-noise ratio and Chi-squared distribution
    90.
    发明授权
    Method and apparatus of adaptive transmission signal detection based on signal-to-noise ratio and Chi-squared distribution 有权
    基于信噪比和卡方分布的自适应传输信号检测方法和装置

    公开(公告)号：US08548103B2

    公开(公告)日：2013-10-01

    申请号：US13288436

    申请日：2011-11-03

    申请人： In Sook Park ,  Kwang Jae Lim ,  Dong Seung Kwon

    发明人： In Sook Park ,  Kwang Jae Lim ,  Dong Seung Kwon

    IPC分类号： H04L27/06 ,  H03D1/00

    CPC分类号： H04L25/03961

    摘要： Disclosed are a method and apparatus of adaptive transmission signal detection based on a signal-to-noise ratio and a Chi-squared distribution for decoding a reception signal in the form of multi-streams into a transmission signal, the method comprising: receiving a reception signal vector; estimating a channel matrix of a channel that the reception signal vector experienced; performing QR decomposition based on the estimated channel matrix; calculating dimensions of divisional spaces adaptively on the basis of a signal-to-noise ratio (SNR) or a signal-to-interference noise ratio (SINR); detecting a maximum likelihood point having a maximum likelihood value among lattice points within each divisional space obtained on the basis of results from performing the QR decomposition and calculating dimension of the divisional spaces; and recovering a transmission signal vector based on the detected maximum likelihood points.

    摘要翻译： 公开了一种基于信噪比和用于将多流形式的接收信号解码为传输信号的卡方分布的自适应传输信号检测方法和装置，该方法包括：接收接收 信号矢量 估计接收信号向量经历的信道的信道矩阵; 基于估计的信道矩阵执行QR分解; 根据信噪比（SNR）或信噪比噪声比（SINR）自适应地计算分区空间的尺寸; 根据执行所述分割空间的QR分解和计算维度的结果，检测在每个分割空间内的格点之间具有最大似然值的最大似然点; 以及基于检测到的最大似然点来恢复传输信号向量。