公开(公告)号：US07836155B2

公开(公告)日：2010-11-16

申请号：US11335594

申请日：2006-01-20

申请人： Kyung-lim Kang ,  Young-sung Roh ,  Jae-hoon Kim ,  Young-gon Choi ,  Jung-ho Kim ,  Shubhranshu Singh ,  Jae-pil You ,  Dong-keun Lee ,  Hyun-sik Kang

发明人： Kyung-lim Kang ,  Young-sung Roh ,  Jae-hoon Kim ,  Young-gon Choi ,  Jung-ho Kim ,  Shubhranshu Singh ,  Jae-pil You ,  Dong-keun Lee ,  Hyun-sik Kang

IPC分类号： G06F15/177 ,  H04L12/56

CPC分类号： H04L29/1232 ,  H04L29/12264 ,  H04L45/00 ,  H04L61/2046 ,  H04L61/2092 ,  H04W8/26 ,  H04W40/246 ,  H04W80/02 ,  H04W84/18

摘要： A method for assigning a global address to a node in an ad-hoc network is provided. A joining node to the ad-hoc network generates a local address using its MAC address. The joining node inquires of its one-hop nodes about whether they occupy a local address that is the same as the generated local address. When the joining node is informed that there are no nodes occupying the same local address, it generates a global address using the generated local address and a global prefix provided from neighbor nodes. The joining node inquires of an Internet gateway about whether the generated global address is currently used. When the joining node is informed that there are no nodes currently using the same global address, the joining node is assigned the generated global address. Further, the joining node and the Internet gateway communicate messages via a relay node using a tunneling.

摘要翻译： 提供了一种用于将全局地址分配给自组织网络中的节点的方法。 到ad-hoc网络的加入节点使用其MAC地址生成本地地址。 加入节点查询其一跳节点是否占用与生成的本地地址相同的本地地址。 当加入节点被通知没有占用相同本地地址的节点时，它使用生成的本地地址和从邻居节点提供的全局前缀生成全局地址。 加入节点向因特网网关询问当前是否使用生成的全局地址。 当加入节点被通知当前没有节点正在使用相同的全局地址时，向连接节点分配生成的全局地址。 此外，加入节点和因特网网关通过中继节点使用隧道传送消息。

公开(公告)号：US08031818B2

公开(公告)日：2011-10-04

申请号：US12026108

申请日：2008-02-05

申请人： Sung-won Lee ,  Young-gon Choi ,  Jung-ho Kim ,  Yong-sung Roh ,  Hae-lyong Kim ,  Nam-shik Kim ,  Hyun-cheol Park ,  Joong-soo Ma

发明人： Sung-won Lee ,  Young-gon Choi ,  Jung-ho Kim ,  Yong-sung Roh ,  Hae-lyong Kim ,  Nam-shik Kim ,  Hyun-cheol Park ,  Joong-soo Ma

IPC分类号： H04L27/06

CPC分类号： H04L27/2675 ,  H04L27/266 ,  H04L27/2672 ,  H04L2027/0046

摘要： Provided is a fine frequency synchronization method of a WiBro system, and particularly, a fine frequency synchronization method which measures a spread degree of a received signal of an adjacent subcarrier using orthogonality of PN sequences and thereby estimates a frequency offset, in a base station or a wireless repeater without using a GPS receiver. The fine frequency synchronization method includes: (a) performing despreading on received adjacent subcarrier sequences, using a PN sequence transmitted from a transmitting party; (b) obtaining ratios of correlative values obtained by the despreading; and (c) estimating a frequency offset on the basis of the ratio of correlative values. Accordingly, fine frequency offset estimation with relatively low complexity is possible without using a GPS receiver in a WiBro environment where interference signals of other base stations or repeaters exist.

摘要翻译： 提供了一种WiBro系统的精细频率同步方法，特别是精细频率同步方法，其使用PN序列的正交性来测量相邻副载波的接收信号的扩展程度，从而估计基站中的频率偏移， 无需使用GPS接收机的无线中继器。 精细频率同步方法包括：（a）使用从发送方发送的PN序列对接收到的相邻子载波序列执行解扩; （b）获得通过解扩获得的相关值的比率; 和（c）基于相关值的比率估计频率偏移。 因此，在WiBro环境中不使用其他基站或中继器的干扰信号的GPS接收机的情况下，可以实现相对低的复杂度的精细频偏估计。

公开(公告)号：US08196003B2

公开(公告)日：2012-06-05

申请号：US12026202

申请日：2008-02-05

申请人： Sung-won Lee ,  Young-gon Choi ,  Jung-ho Kim ,  Yong-sung Roh ,  Hyun-cheol Park ,  Joong-soo Ma ,  Nam-shik Kim

发明人： Sung-won Lee ,  Young-gon Choi ,  Jung-ho Kim ,  Yong-sung Roh ,  Hyun-cheol Park ,  Joong-soo Ma ,  Nam-shik Kim

IPC分类号： H03M13/00

CPC分类号： H04B3/36

摘要： Provided are a network-coding apparatus and method which can increase a data communication capacity in a communication environment to which an error-correction code (ECC) is applied. The network-coding apparatus includes a received signal processing unit receiving at least two signals, and decoding the at least two received signals; and a transmission signal processing unit receiving the at least two decoded signals from the received signal processing unit, merging the at least two decoded signals, and generating a merged transmission signal.

摘要翻译： 提供一种能够增加应用纠错码（ECC）的通信环境中的数据通信能力的网络编码装置和方法。 网络编码装置包括：接收信号处理单元，接收至少两个信号，并解码该至少两个接收信号; 以及发送信号处理单元，从所述接收信号处理单元接收所述至少两个解码信号，合并所述至少两个解码信号，并生成合并的发送信号。

公开(公告)号：US08270416B2

公开(公告)日：2012-09-18

申请号：US11042056

申请日：2005-01-26

申请人： Young-gon Choi ,  Eun-Il Seo

发明人： Young-gon Choi ,  Eun-Il Seo

IPC分类号： H04L12/28

CPC分类号： H04W40/02 ,  H04L45/122 ,  H04L45/20 ,  H04W84/18 ,  H04W88/16

摘要： A communication method for a mobile communication system having a node for sending data to a gateway via neighboring nodes and gateways for sending the data from the nodes to an Internet network, and for setting a path for data transmissions between a gateway and a node, including: transmitting via the gateway a message including path information and a prefix; and setting a path for sending data to the node that sent the message, when a node that received the message, directly or via another node, has the data to be sent to the gateway; and sending the data via the set path.

摘要翻译： 一种移动通信系统的通信方法，具有用于经由相邻节点和网关向网关发送数据的节点，用于将数据从节点发送到因特网，并且用于设置网关与节点之间的数据传输路径，包括 ：经由网关发送包含路径信息和前缀的消息; 并且当直接或经由另一个节点接收到消息的节点具有要发送到网关的数据时，设置用于向发送消息的节点发送数据的路径; 并通过设置路径发送数据。

公开(公告)号：US20050165957A1

公开(公告)日：2005-07-28

申请号：US11042056

申请日：2005-01-26

申请人： Young-gon Choi ,  Eun-il Seo

发明人： Young-gon Choi ,  Eun-il Seo

IPC分类号： H04L12/28 ,  G06F15/173 ,  H04L12/56

CPC分类号： H04W40/02 ,  H04L45/122 ,  H04L45/20 ,  H04W84/18 ,  H04W88/16

摘要： A communication method for a mobile communication system having a node for sending data to a gateway via neighboring nodes and gateways for sending the data from the nodes to an Internet network, and for setting a path for data transmissions between a gateway and a node, including: transmitting via the gateway a message including path information and a prefix; and setting a path for sending data to the node that sent the message, when a node that received the message, directly or via another node, has the data to be sent to the gateway; and sending the data via the set path.

摘要翻译： 一种移动通信系统的通信方法，具有用于经由相邻节点和网关向网关发送数据的节点，用于将数据从节点发送到因特网，并且用于设置网关与节点之间的数据传输路径，包括 ：经由网关发送包含路径信息和前缀的消息; 并且当直接或经由另一个节点接收到消息的节点具有要发送到网关的数据时，设置用于向发送消息的节点发送数据的路径; 并通过设置路径发送数据。