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1. 发明授权

US08194695B2 Terminal and method for wireless sensor network for determining contention windows in contention-based channel access 有权
标题翻译：无线传感器网络的终端和方法，用于确定基于竞争的信道接入中的竞争窗口
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。

2. 发明申请

US20090154438A1 PACKET TRANSMISSION METHOD FOR WIRELESS PERSONAL AREA NETWORK 有权
标题翻译：无线个人网络的分组传输方法
公开(公告)号：US20090154438A1
公开(公告)日：2009-06-18
申请号：US12334706
申请日：2008-12-15
申请人： Eui Jik Kim , Sun Gi Kim , Hyo Hyun Choi , Jeong Geun Kim
发明人： Eui Jik Kim , Sun Gi Kim , Hyo Hyun Choi , Jeong Geun Kim
IPC分类号： H04W40/02
CPC分类号： H04W74/0833 , H04W84/18 , Y02D70/142 , Y02D70/144 , Y02D70/162 , Y02D70/22
摘要： A packet transmission method for a WPAN that for alleviating traffic concentration in an active period and improving network throughput by controlling packet transmission timing in the active period. A packet transmission method for a wireless personal area network including a coordinator operating with a specific duty cycle and a plurality of devices includes determining, when a packet is generated, whether there is another packet waiting to be sent; determining, if there is no other packet waiting to be sent, whether the network is in an inactive period; setting, when network is in an inactive period, a backoff time; and sending the packet when the backoff time has expired. The packet transmission method controls an initial backoff value adaptively to a duty cycle of the network.
摘要翻译：一种WPAN的分组发送方法，用于通过控制活动期间的分组发送定时来缓解活动期间的业务集中，提高网络吞吐量。一种用于包括以特定占空比操作的协调器和多个设备的无线个域网的分组传输方法包括：确定何时产生分组，是否存在等待发送的另一分组; 确定如果没有其他分组等待发送，则网络是否处于非活动时段; 当网络处于非活动期间时，设置退避时间; 并且当退避时间到期时发送分组。分组传输方法自适应地控制网络的占空比的初始后退值。

3. 发明授权

US08340053B2 Wireless sensor network and method for performing communication therein 有权
标题翻译：无线传感器网络及其中进行通信的方法
公开(公告)号：US08340053B2
公开(公告)日：2012-12-25
申请号：US12333460
申请日：2008-12-12
申请人： Eui Jik Kim , Sun Gi Kim , Hyo Hyun Choi , Jeong Geun Kim , Van Ca Phan
发明人： Eui Jik Kim , Sun Gi Kim , Hyo Hyun Choi , Jeong Geun Kim , Van Ca Phan
IPC分类号： H04W84/02
CPC分类号： H04W74/04 , H04W48/08 , H04W74/006 , H04W84/18
摘要： A method for performing communication in the wireless sensor network is disclosed. The upper node transmits a beacon message to the lower nodes, wherein the beacon message distinguishes an indirect transmission interval, in which the upper node transmits downlink data to the plurality of lower nodes, from a direct transmission interval adjacent to the indirect transmission interval, in which the upper node receives uplink data from the plurality of lower nodes. The lower nodes determine the indirect transmission interval and the direct transmission interval from the received beacon message. The downlink data is transmitted from the upper node to the lower nodes in the indirect transmission interval. The uplink data is transmitted from the lower nodes to the upper node in the direct transmission interval. When communication is performed between the upper node and the lower nodes, the data can be efficiently transmitted from the upper node to the lower nodes.
摘要翻译：公开了一种在无线传感器网络中执行通信的方法。上层节点向下层节点发送信标消息，其中信标消息区分上级节点从多个下层节点向邻近间接传输间隔的直接传输间隔发送下行链路数据的间接传输间隔，上级节点从多个下级节点接收上行链路数据。下层节点确定接收的信标消息的间接传输间隔和直接传输间隔。在间接传输间隔中，从上层节点向下层节点发送下行链路数据。在直接传输间隔中，上行数据从下层节点发送到上层节点。当在上层节点和下级节点之间进行通信时，可以从上层节点向下层节点高效地发送数据。

4. 发明授权

US07916650B2 Network device and data transmission method thereof in wireless sensor network 有权
标题翻译：无线传感器网络中的网络设备及其数据传输方法
公开(公告)号：US07916650B2
公开(公告)日：2011-03-29
申请号：US12321532
申请日：2009-01-22
申请人： Eui Jik Kim , Sun Gi Kim , Hyo Hyun Choi , Jeong Geun Kim
发明人： Eui Jik Kim , Sun Gi Kim , Hyo Hyun Choi , Jeong Geun Kim
IPC分类号： G01R31/08
CPC分类号： H04W74/085 , H04L43/0811 , H04W84/18 , Y02D70/00 , Y02D70/142 , Y02D70/144 , Y02D70/162
摘要： A wireless sensor network and data transmission method thereof provides for improving channel access efficiency and energy saving effect by using inventive carrier sensing mechanism. The data transmission method includes assessing a channel after initializing, when a packet to be transmitted is generated, a number of carrier sensing attempts (Ns) and a backoff value (W); determining, when the channel availability is assessed to be idle, whether W reaches 0; transmitting the packet if W reaches 0; and reassessing, if W does not reach 0, the channel after a duration corresponding W/(Ns-1) slot.
摘要翻译：无线传感器网络及其数据传输方法通过使用本发明的载波传感机制来提高信道接入效率和节能效果。数据传输方法包括：当要发送的分组被生成时，初始化之后的信道，多个载波感测尝试（Ns）和退避值（W）; 确定当信道可用性被评估为空闲时，W是否达到0; 如果W达到0，则发送该数据包; 并且如果W不达到0，则在经过持续时间对应的W /（Ns-1）时隙之后重新评估。

5. 发明授权

US08335155B2 Packet transmission method for wireless personal area network 有权
标题翻译：无线个域网的分组传输方法
公开(公告)号：US08335155B2
公开(公告)日：2012-12-18
申请号：US12334706
申请日：2008-12-15
申请人： Eui Jik Kim , Sun Gi Kim , Hyo Hyun Choi , Jeong Geun Kim
发明人： Eui Jik Kim , Sun Gi Kim , Hyo Hyun Choi , Jeong Geun Kim
IPC分类号： G01R31/08
CPC分类号： H04W74/0833 , H04W84/18 , Y02D70/142 , Y02D70/144 , Y02D70/162 , Y02D70/22
摘要： A packet transmission method for a WPAN that for alleviating traffic concentration in an active period and improving network throughput by controlling packet transmission timing in the active period. A packet transmission method for a wireless personal area network including a coordinator operating with a specific duty cycle and a plurality of devices includes determining, when a packet is generated, whether there is another packet waiting to be sent; determining, if there is no other packet waiting to be sent, whether the network is in an inactive period; setting, when network is in an inactive period, a backoff time; and sending the packet when the backoff time has expired. The packet transmission method controls an initial backoff value adaptively to a duty cycle of the network.
摘要翻译：一种WPAN的分组发送方法，用于通过控制活动期间的分组发送定时来缓解活动期间的业务集中，提高网络吞吐量。一种用于包括以特定占空比操作的协调器和多个设备的无线个域网的分组传输方法包括：确定何时产生分组，是否存在等待发送的另一分组; 确定如果没有其他分组等待发送，则网络是否处于非活动时段; 当网络处于非活动期间时，设置退避时间; 并且当退避时间到期时发送分组。分组传输方法自适应地控制网络的占空比的初始后退值。

6. 发明申请

US20090207747A1 Network device and data transmission method thereof in wireless sensor network 有权
标题翻译：无线传感器网络中的网络设备及其数据传输方法
公开(公告)号：US20090207747A1
公开(公告)日：2009-08-20
申请号：US12321532
申请日：2009-01-22
申请人： Eui Jik Kim , Sun Gi Kim , Hyo Hyun Choi , Jeong Geun Kim
发明人： Eui Jik Kim , Sun Gi Kim , Hyo Hyun Choi , Jeong Geun Kim
IPC分类号： H04W74/00 , H04L12/26
CPC分类号： H04W74/085 , H04L43/0811 , H04W84/18 , Y02D70/00 , Y02D70/142 , Y02D70/144 , Y02D70/162
摘要： A wireless sensor network and data transmission method thereof provides for improving channel access efficiency and energy saving effect by using inventive carrier sensing mechanism. The data transmission method includes assessing a channel after initializing, when a packet to be transmitted is generated, a number of carrier sensing attempts (Ns) and a backoff value (W); determining, when the channel availability is assessed to be idle, whether W reaches 0; transmitting the packet if W reaches 0; and reassessing, if W does not reach 0, the channel after a duration corresponding W/(Ns-1) slot.
摘要翻译：无线传感器网络及其数据传输方法通过使用本发明的载波传感机制来提高信道接入效率和节能效果。数据传输方法包括：当要发送的分组被生成时，初始化之后的信道，多个载波感测尝试（Ns）和退避值（W）; 确定当信道可用性被评估为空闲时，W是否达到0; 如果W达到0，则发送该数据包; 并且如果W不达到0，则在经过持续时间对应的W /（Ns-1）时隙之后重新评估。

7. 发明申请

US20090180452A1 COMMUNICATION TERMINAL AND METHOD FOR WIRELESS SENSOR NETWORK 有权
标题翻译：无线传感器网络的通信终端和方法
公开(公告)号：US20090180452A1
公开(公告)日：2009-07-16
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： H04W4/00
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。

8. 发明授权

US08174997B2 Communication method and apparatus using received signal strength indicator in wireless sensor network 有权
标题翻译：在无线传感器网络中使用接收信号强度指示器的通信方法和装置
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。

9. 发明授权

US07855684B2 Method and system for locating sensor node in sensor network using distance determining algorithm 有权
标题翻译：使用距离确定算法在传感器网络中定位传感器节点的方法和系统
公开(公告)号：US07855684B2
公开(公告)日：2010-12-21
申请号：US12270912
申请日：2008-11-14
申请人： Jehyok Ryu , Sun Gi Kim , Hyo Hyun Choi , Bum Jin Kim , Sae Young Ahn , Sun Shin An
发明人： Jehyok Ryu , Sun Gi Kim , Hyo Hyun Choi , Bum Jin Kim , Sae Young Ahn , Sun Shin An
IPC分类号： G01S3/02
CPC分类号： G01S5/14 , G01S5/0236 , G01S5/0252
摘要： For a sensor network having reference nodes and sensor nodes, A method and apparatus using a distance determining algorithm for a sensor network having reference nodes and sensor nodes. A distance determining algorithm is executed to determine an adequate distance between reference nodes within a preset error range, and a position location table is created. A sensor node sends a location information request to reference nodes, receives the position location table and location information from the reference nodes, and computes the coordinates of its position. Alternatively, without requesting transmission of the position location table, the sensor node may receive calculated coordinates of its position directly from a reference node.
摘要翻译：对于具有参考节点和传感器节点的传感器网络，使用具有参考节点和传感器节点的传感器网络的距离确定算法的方法和装置。执行距离确定算法以确定在预设误差范围内的参考节点之间的足够距离，并且创建位置位置表。传感器节点向参考节点发送位置信息请求，从参考节点接收位置位置表和位置信息，并计算其位置的坐标。或者，在不要求发送位置位置表的情况下，传感器节点可以直接从参考节点接收其位置的计算坐标。

10. 发明授权

US08797944B2 Mobility management system and method for internet protocol based low power wireless network 有权
标题翻译：基于互联网协议的低功耗无线网络的移动管理系统和方法
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。

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