公开(公告)号：US08391207B2

公开(公告)日：2013-03-05

申请号：US12270901

申请日：2008-11-14

申请人： Jeong Sik In ,  Sun Gi Kim ,  Hyo Hyun Choi ,  Ju Wook Jang ,  Woo Kyung Sung

发明人： Jeong Sik In ,  Sun Gi Kim ,  Hyo Hyun Choi ,  Ju Wook Jang ,  Woo Kyung Sung

IPC分类号： H04W4/00

CPC分类号： H04B7/2606

摘要： A method and system for transmitting data from a base station to a mobile station in a wireless communication system using a multiple hop relay scheme is In a multi-hop system having a plurality of nodes, performing bidirectional data transmission between the nodes comprises: grouping the plurality of nodes into a first node group to a fourth node group, and assigning data transmission intervals to the grouped node groups at each frame, the data transmission intervals dividing each frame in time; receiving, by a second group node, data from an upper group node at a first frame and, at the same time, receiving, by a third group node, data from a lower group node; and transmitting by the second group node data to the upper group node at a second frame and, at the same time, transmitting by the third group node data to the lower group node.

摘要翻译： 一种在使用多跳中继方案的无线通信系统中从基站向移动台发送数据的方法和系统在具有多个节点的多跳系统中，在所述节点之间执行双向数据传输包括：将 多个节点分成第一节点组到第四节点组，并且将数据传输间隔分配给每个帧处的分组节点组，数据传输间隔在时间上划分每个帧; 由第二组节点接收来自第一帧的上组节点的数据，并且同时由第三组节点接收来自下组节点的数据; 并且由第二组节点将数据以第二帧发送到上组节点，同时由第三组节点发送数据给下组节点。

公开(公告)号：US20090122747A1

公开(公告)日：2009-05-14

申请号：US12270901

申请日：2008-11-14

申请人： Jeong Sik IN ,  Sun Gi Kim ,  Hyo Hyun Choi ,  Ju Wook Jang ,  Woo Kyung Sung

发明人： Jeong Sik IN ,  Sun Gi Kim ,  Hyo Hyun Choi ,  Ju Wook Jang ,  Woo Kyung Sung

IPC分类号： H04B7/14

CPC分类号： H04B7/2606

摘要： A method and system for transmitting data from a base station to a mobile station in a wireless communication system using a multiple hop relay scheme is In a multi-hop system having a plurality of nodes, performing bidirectional data transmission between the nodes comprises: grouping the plurality of nodes into a first node group to a fourth node group, and assigning data transmission intervals to the grouped node groups at each frame, the data transmission intervals dividing each frame in time; receiving, by a second group node, data from an upper group node at a first frame and, at the same time, receiving, by a third group node, data from a lower group node; and transmitting by the second group node data to the upper group node at a second frame and, at the same time, transmitting by the third group node data to the lower group node.

摘要翻译： 一种在使用多跳中继方案的无线通信系统中从基站向移动台发送数据的方法和系统在具有多个节点的多跳系统中，在所述节点之间执行双向数据传输包括：将 多个节点分成第一节点组到第四节点组，并且将数据传输间隔分配给每个帧处的分组节点组，数据传输间隔在时间上划分每个帧; 由第二组节点接收来自第一帧的上组节点的数据，并且同时由第三组节点接收来自下组节点的数据; 并且由第二组节点将数据以第二帧发送到上组节点，同时由第三组节点发送数据给下组节点。

公开(公告)号：US08180353B2

公开(公告)日：2012-05-15

申请号：US12323567

申请日：2008-11-26

申请人： Jeong Sik In ,  Hyo Hyun Choi

发明人： Jeong Sik In ,  Hyo Hyun Choi

IPC分类号： H04W74/00 ,  H04W4/00 ,  H04L12/28

CPC分类号： H04W40/02 ,  H04W40/30

摘要： A routing method and system for a mobile ad-hoc network is provided for efficiently routing a packet by quickly updating topology information shared by nodes adaptively to variation of the network topology while minimizing generation of redundant traffic. The routing method includes setting, at each current node, a self-potential value to a destination node upon receiving a route recovery request; and transmitting, when a transmission packet is destined to the destination node, the packet through a route established with at least one node in a descending order of potential value. The present invention reduces the redundant traffic dramatically, thereby improving the entire network throughput.

摘要翻译： 提供了一种用于移动自组织网络的路由方法和系统，用于通过快速更新由节点共享的拓扑信息来适应于网络拓扑的变化而有效地路由分组，同时最小化冗余业务的生成。 所述路由方法包括在接收到路由恢复请求时在每个当前节点处将目标节点的自身潜在值设置为目的节点; 并且当传输分组以目的地节点为目的地时，通过以至少一个节点建立的路由以潜在值的降序发送。 本发明显着地减少了冗余流量，从而提高了整个网络吞吐量。

公开(公告)号：US20090135764A1

公开(公告)日：2009-05-28

申请号：US12323567

申请日：2008-11-26

申请人： Jeong Sik IN ,  Hyo Hyun Choi

发明人： Jeong Sik IN ,  Hyo Hyun Choi

IPC分类号： H04W40/02

CPC分类号： H04W40/02 ,  H04W40/30

摘要： A routing method and system for a mobile ad-hoc network is provided for efficiently routing a packet by quickly updating topology information shared by nodes adaptively to variation of the network topology while minimizing generation of redundant traffic. The routing method includes setting, at each current node, a self-potential value to a destination node upon receiving a route recovery request; and transmitting, when a transmission packet is destined to the destination node, the packet through a route established with at least one node in a descending order of potential value. The present invention reduces the redundant traffic dramatically, thereby improving the entire network throughput.

摘要翻译： 提供了一种用于移动自组织网络的路由方法和系统，用于通过快速更新由节点共享的拓扑信息来适应于网络拓扑的变化而有效地路由分组，同时最小化冗余业务的生成。 所述路由方法包括在接收到路由恢复请求时在每个当前节点处将目标节点的自身潜在值设置为目的节点; 并且当传输分组以目的地节点为目的地时，通过以至少一个节点建立的路由以潜在值的降序发送。 本发明显着地减少了冗余流量，从而提高了整个网络吞吐量。

公开(公告)号：US08194695B2

公开(公告)日：2012-06-05

申请号：US12351902

申请日：2009-01-12

申请人： Eui Jik Kim ,  Sun Gi Kim ,  Hyo Hyun Choi ,  Vu Thuy Dan Nguyen ,  Jeong Geun Kim

发明人： Eui Jik Kim ,  Sun Gi Kim ,  Hyo Hyun Choi ,  Vu Thuy Dan Nguyen ,  Jeong Geun Kim

IPC分类号： H04L12/403

CPC分类号： H04W74/0816 ,  H04W84/18

摘要： A communication terminal and method is provided for improving channel utilization efficiency in a wireless sensor network using contention-based channel access mechanism is disclosed. The communication method according to the present invention comprises initializing, when a packet transmission is required, a contention window to a size; resetting, when a channel is assessed to be busy, the size of the contention window in a hybrid expansion mode; and attempting, when the channel is assessed to be idle, the packet transmission through the channel.

摘要翻译： 本发明提供了一种通过使用基于争用的信道接入机制来提高无线传感器网络中的信道利用效率的通信终端和方法。 根据本发明的通信方法包括：当需要分组传输时，将竞争窗口初始化为大小; 当信道被评估为忙时，在混合扩展模式中重置竞争窗口的大小; 并且当信道被评估为空闲时尝试通过信道传输分组。

公开(公告)号：US20090207783A1

公开(公告)日：2009-08-20

申请号：US12370709

申请日：2009-02-13

申请人： Hyo Hyun Choi ,  Sun Gi Kim ,  Lynn Choi ,  Jae Kyun Jung

发明人： Hyo Hyun Choi ,  Sun Gi Kim ,  Lynn Choi ,  Jae Kyun Jung

IPC分类号： H04W40/02

CPC分类号： H04W40/20 ,  H04W40/026 ,  Y02D70/164 ,  Y02D70/22 ,  Y02D70/30 ,  Y02D70/38

摘要： A communication method and apparatus using a virtual sink node in a wireless sensor network, in which location information about a destination node is acquired by a source node. If the location of the destination node is out of a transmission range of the source node, data including the location information about the destination node are transmitted from the source node to one of nodes adjacent to the source node, where the one node is typically closest to the destination node. The data are transmitted from the one node to another one of nodes adjacent to the one node, where another node is closest to the destination node, until the destination node is located within a transmission range of the one node. If the destination node is located within the transmission range of the one node, the data are transmitted from the one node to the destination node.

摘要翻译： 一种在无线传感器网络中使用虚拟汇聚节点的通信方法和装置，其中由源节点获取关于目的地节点的位置信息。 如果目的地节点的位置在源节点的传输范围之外，则包括关于目的地节点的位置信息的数据从源节点发送到与源节点相邻的节点之一，其中一个节点通常最接近 到目标节点。 数据从一个节点发送到与该一个节点相邻的另一个节点，另一个节点最靠近目的地节点，直到目的地节点位于该节点的传输范围内。 如果目的地节点位于一个节点的传输范围内，则从一个节点向目的地节点发送数据。

公开(公告)号：US08797944B2

公开(公告)日：2014-08-05

申请号：US12354875

申请日：2009-01-16

申请人： Hyo Hyun Choi ,  Sun Gi Kim ,  Tae Shik Shon ,  Jin Ho Kim ,  Choong Seon Hong

发明人： Hyo Hyun Choi ,  Sun Gi Kim ,  Tae Shik Shon ,  Jin Ho Kim ,  Choong Seon Hong

IPC分类号： H04W4/00

CPC分类号： H04W8/02 ,  H04W48/14 ,  H04W80/04 ,  H04W84/005 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/22

摘要： A mobility management system and method is provided for efficiently support mobility to an IPv6 based LoWpan. The mobility management method for Internet Protocol version 6 (IPv6) based personal area network (PAN) moving with a mobile router according to the present invention includes detecting, at a mobile terminal, movement of the mobile router; determining whether the movement is an intra-network movement or an inter-network movement, transmitting, when the movement is an intra-network movement, a neighbor discovery request message to a gateway of a currently attached network and receiving a neighbor discovery response message containing a temporary address transmitted by the gateway in response to the neighbor discovery request message. When the movement is an inter-network movement, the gateway receives the binding acknowledgement message from a home agent and establishes a bidirectional tunnel with the home agent.

摘要翻译： 提供了一种移动性管理系统和方法，用于有效地支持基于IPv6的LoWpan的移动性。 根据本发明的用移动路由器移动的基于互联网协议版本6（IPv6）的个人区域网（PAN）的移动性管理方法包括在移动终端处检测移动路由器的移动; 确定移动是网络内移动还是网络间移动，当移动是网络内移动时，向当前附接网络的网关发送邻居发现请求消息，并且接收包含以下内容的邻居发现响应消息： 由所述网关响应于所述邻居发现请求消息而发送的临时地址。 当移动是网络间移动时，网关从归属代理接收绑定确认消息，并与归属代理建立双向隧道。

公开(公告)号：US08421615B2

公开(公告)日：2013-04-16

申请号：US12270898

申请日：2008-11-14

申请人： Jehyok Ryu ,  Sun Gi Kim ,  Hyo Hyun Choi ,  Sun Shin An ,  Sae Young Ahn ,  Bum Jin Kim

发明人： Jehyok Ryu ,  Sun Gi Kim ,  Hyo Hyun Choi ,  Sun Shin An ,  Sae Young Ahn ,  Bum Jin Kim

IPC分类号： G08B1/08

CPC分类号： G08C21/00

摘要： A method and apparatus for a sensor network having a plurality of reference nodes and a sensor node that enables the sensor node to compute a relative position through transmission range control and position mapping. In transmission range control, each reference node sends location information signals to the sensor node while varying transmission power. In position mapping, the sensor node forms a grid of vertical and horizontal lines corresponding to a square area defined by the neighboring reference nodes, extracts coordinates of intersections in the grid belonging to a shared region between areas covered by location information signals of various transmit power levels from the neighboring reference nodes, and sets the position of the sensor node to the middle points of the extracted coordinates. Each reference node sends a location information signal when a random backoff time expires after reception of a location information request signal.

摘要翻译： 一种用于具有多个参考节点和传感器节点的传感器网络的方法和装置，其使传感器节点能够通过传输范围控制和位置映射来计算相对位置。 在传输范围控制中，每个参考节点在发射功率变化的同时向传感器节点发送位置信息信号。 在位置映射中，传感器节点形成对应于由相邻参考节点定义的平方区域的垂直和水平线的网格，提取属于各种发射功率的位置信息信号覆盖的区域之间的共享区域的网格中的交点的坐标 级别，并将传感器节点的位置设置为提取的坐标的中点。 当接收到位置信息请求信号之后随机退避时间到期时，每个参考节点发送位置信息信号。

公开(公告)号：US08213403B2

公开(公告)日：2012-07-03

申请号：US12354821

申请日：2009-01-16

申请人： Tae Shik Shon ,  Sun Gi Kim ,  Hyo Hyun Choi ,  Jin Ho Kim ,  Choong Seon Hong

发明人： Tae Shik Shon ,  Sun Gi Kim ,  Hyo Hyun Choi ,  Jin Ho Kim ,  Choong Seon Hong

IPC分类号： H04J3/24

CPC分类号： H04L69/04 ,  H04L69/16 ,  H04L69/161 ,  H04L69/22 ,  H04W28/06 ,  Y02D30/30 ,  Y02D70/144 ,  Y02D70/162 ,  Y02D70/22

摘要： A mobility header compression method and system for an IPv6-based LoWPAN is provided for supporting IPv6 mobility to the IPv6-based LoWPAN checks a packet carrying data and a first and a second headers containing transmission information about the data to determine whether the second header contains a compressed Internet Protocol version 6 (IPv6) information. When the second header contains a compressed IPv6 information, ands followed by a mobility header, a mobility support-indicative field of the first header is set to indicate that the second header is followed by the mobility header and the rest of the fields of the second header are compressed except for the mobility header-indicative field. A mobility information-indicative field of the mobility header is set to indicate inclusion of mobility information; and the rest of the fields of the mobility header are compressed except for the mobility information-indicative field.

摘要翻译： 提供了一种用于基于IPv6的LoWPAN的移动性报头压缩方法和系统，用于支持基于IPv6的LoWPAN的IPv6移动性检查携带数据的分组，以及包含关于数据的传输信息的第一和第二报头，以确定第二报头是否包含 压缩的Internet协议版本6（IPv6）信息。 当第二报头包含压缩的IPv6信息，随后是移动性报头时，第一报头的移动性支持指示字段被设置为指示第二报头跟随移动性报头，并且第二报头的其余部分 除了移动性报头指示字段之外，报头被压缩。 移动性报头的移动信息指示字段被设置为指示包括移动性信息; 并且移动性报头的其余部分被压缩，除了移动信息指示字段之外。

公开(公告)号：US08174997B2

公开(公告)日：2012-05-08

申请号：US12370683

申请日：2009-02-13

申请人： Hyo Hyun Choi ,  Sun Gi Kim ,  Lynn Choi ,  Sang Hoon Lee

发明人： Hyo Hyun Choi ,  Sun Gi Kim ,  Lynn Choi ,  Sang Hoon Lee

IPC分类号： H04L12/26

CPC分类号： H04L43/0811 ,  H04W40/16 ,  H04W40/18

摘要： A communication method and apparatus is disclosed that uses a received signal strength indicator (RSSI). In a sensor network including a plurality of nodes, a first node of the plurality of nodes receives a signal transmitted from a second node of the plurality of nodes, at least once. The first node also manages a link state with the second node according to the RSSI of the received signal. Therefore, the first node can receive signals from the plurality of nodes and then predict whether the second node moves. The first node can also predict a link state after the second node is moved so that communication can be performed through a link in a good state. Accordingly, the communication quality and the network performance of a network are enhanced.

摘要翻译： 公开了一种使用接收信号强度指示器（RSSI）的通信方法和装置。 在包括多个节点的传感器网络中，多个节点中的第一节点至少接收一次从多个节点的第二节点发送的信号。 第一节点还根据接收到的信号的RSSI来管理与第二节点的链路状态。 因此，第一节点可以从多个节点接收信号，然后预测第二节点是否移动。 第一节点还可以在移动第二节点之后预测链路状态，使得可以通过处于良好状态的链路执行通信。 因此，提高了网络的通信质量和网络性能。