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    Beacon scheduling method and system in a network system
    1.
    发明授权
    Beacon scheduling method and system in a network system 失效
    信号调度方法和系统在网络系统中的应用

    公开(公告)号：US07529205B2

    公开(公告)日：2009-05-05

    申请号：US11271879

    申请日：2005-11-14

    申请人： Seung-hwan Oh ,  Soon-jin Choi ,  Min-seop Jeong ,  Jong-hun Park

    发明人： Seung-hwan Oh ,  Soon-jin Choi ,  Min-seop Jeong ,  Jong-hun Park

    IPC分类号： H04Q7/20

    CPC分类号： H04L12/2854 ,  H04L29/12783 ,  H04L61/35 ,  H04W8/26 ,  H04W48/12 ,  H04W88/14

    摘要： A beacon scheduling method and system in a network system. The beacon scheduling method of a router in a network system that includes at least one router, includes receiving a beacon signal from a parent node; calculating a difference between an address of the parent node and an address of the router; and setting the calculated difference to a beacon transmission offset of the router. Accordingly, all devices from the top to the bottom of the network can transmit their beacons without collisions, and thus the multi-hop tree structure can be established.

    摘要翻译： 网络系统中的信标调度方法和系统。 包括至少一个路由器的网络系统中的路由器的信标调度方法包括从父节点接收信标信号; 计算父节点的地址与路由器的地址之间的差异; 并将计算出的差值设置为路由器的信标传输偏移量。 因此，从网络的顶部到底部的所有设备都可以发送它们的信标而不发生冲突，从而可以建立多跳树结构。

    Flooding method in ad-hoc network
    5.
    发明申请
    Flooding method in ad-hoc network 有权

    公开(公告)号：US20060045066A1

    公开(公告)日：2006-03-02

    申请号：US11214732

    申请日：2005-08-31

    申请人： Soon-jin Choi ,  Il-whan Kim ,  Chung-gu Kang ,  Min-seop Jeong ,  Yu-jin Lim

    发明人： Soon-jin Choi ,  Il-whan Kim ,  Chung-gu Kang ,  Min-seop Jeong ,  Yu-jin Lim

    IPC分类号： H04L12/28

    CPC分类号： H04W40/08 ,  H04L45/00 ,  H04L45/32

    摘要： A method for flooding a route request packet that is received at a node in a communication system constructed of at least three nodes including a source node that requests to establish a route and a destination node that receives the route request. One of a plurality of levels having different transmission periods is determined using a strength of a received signal of a measured packet. A transmission start point is selected at the determined level, and it is determined whether a route request packet is re-received before the selected transmission start point. The received packet is broadcast at the selected transmission start point when the packet is not re-received. The transmission start point is randomly selected within the transmission period or at the level in consideration of the number of the connected nodes.

    Flooding method in ad-hoc network
    6.
    发明授权
    Flooding method in ad-hoc network 有权
    自组织网络中的洪泛方法

    公开(公告)号：US07532598B2

    公开(公告)日：2009-05-12

    申请号：US11214732

    申请日：2005-08-31

    申请人： Soon-jin Choi ,  Il-whan Kim ,  Chung-gu Kang ,  Min-seop Jeong ,  Yu-jin Lim

    发明人： Soon-jin Choi ,  Il-whan Kim ,  Chung-gu Kang ,  Min-seop Jeong ,  Yu-jin Lim

    IPC分类号： H04W4/00

    CPC分类号： H04W40/08 ,  H04L45/00 ,  H04L45/32

    摘要： A method for flooding a route request packet that is received at a node in a communication system constructed of at least three nodes including a source node that requests to establish a route and a destination node that receives the route request. One of a plurality of levels having different transmission periods is determined using a strength of a received signal of a measured packet. A transmission start point is selected at the determined level, and it is determined whether a route request packet is re-received before the selected transmission start point. The received packet is broadcast at the selected transmission start point when the packet is not re-received. The transmission start point is randomly selected within the transmission period or at the level in consideration of the number of the connected nodes.

    摘要翻译： 一种在包括请求建立路由的源节点和接收路由请求的目的地节点的至少三个节点构成的通信系统中的节点处接收的路由请求分组的方法。 使用测量分组的接收信号的强度来确定具有不同传输周期的多个级别之一。 在确定的级别选择传输开始点，并且确定在选择的传输开始点之前是否重新接收到路由请求分组。 当分组未被重新接收时，所接收的分组在所选择的传输开始点被广播。 考虑到所连接的节点的数量，在传输周期内或在等级上随机地选择传输开始点。

    Device and method for adaptively controlling turn-on time of transceiver
    7.
    发明授权
    Device and method for adaptively controlling turn-on time of transceiver 有权
    收发器开启时间的自适应控制装置及方法

    公开(公告)号：US07710914B2

    公开(公告)日：2010-05-04

    申请号：US11356126

    申请日：2006-02-17

    申请人： Ji-tae Kim ,  Soon-jin Choi ,  Seung-hwan Oh

    发明人： Ji-tae Kim ,  Soon-jin Choi ,  Seung-hwan Oh

    IPC分类号： H04Q7/00 ,  G01R31/08 ,  H04Q7/20

    CPC分类号： H04W52/0229 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/162 ,  Y02D70/22

    摘要： A device and method for adaptively controlling a turn-on time of a transceiver so that power consumption is reduced. The device includes a transceiver for receiving a beacon frame broadcasted by a coordinator which coordinates devices, and a controller for determining whether a period of the beacon frame is changed by checking period information in the received beacon frame. The device further includes a beacon frame arrival-time estimation part for estimating an arrival-time of a next beacon frame to be received, based on the changed period information of the beacon frame, a time-error estimation part for estimating a time-errors of the coordinator and the device based on the changed period information of the beacon frame, and a turn-on time estimation part for estimating a turn-on time of a transceiver based on the estimated beacon frame arrival-time and the estimated time-errors.

    摘要翻译： 一种用于自适应地控制收发器的接通时间以减少功耗的装置和方法。 该设备包括收发器，用于接收协调设备的协调器广播的信标帧;以及控制器，用于通过检查所接收的信标帧中的周期信息来确定信标帧的周期是否被改变。 该设备还包括：信标帧到达时间估计部分，用于基于信标帧的改变的周期信息来估计下一个要接收的信标帧的到达时间;时间误差估计部分，用于估计时间误差 基于所述信标帧的改变的周期信息的所述协调器和所述设备以及基于所估计的信标帧到达时间和所述估计的时间误差来估计收发器的接通时间的接通时间估计部分 。

    Device and method for adaptively controlling turn-on time of transceiver
    8.
    发明申请
    Device and method for adaptively controlling turn-on time of transceiver 有权
    收发器开启时间的自适应控制装置及方法

    公开(公告)号：US20060182056A1

    公开(公告)日：2006-08-17

    申请号：US11356126

    申请日：2006-02-17

    申请人： Ji-tae Kim ,  Soon-jin Choi ,  Seung-hwan Oh

    发明人： Ji-tae Kim ,  Soon-jin Choi ,  Seung-hwan Oh

    IPC分类号： H04Q7/00

    CPC分类号： H04W52/0229 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/162 ,  Y02D70/22

    摘要： A device and method for adaptively controlling a turn-on time of a transceiver so that power consumption is reduced. The device includes a transceiver for receiving a beacon frame broadcasted by a coordinator which coordinates devices, and a controller for determining whether a period of the beacon frame is changed by checking period information in the received beacon frame. The device further includes a beacon frame arrival-time estimation part for estimating an arrival-time of a next beacon frame to be received, based on the changed period information of the beacon frame, a time-error estimation part for estimating a time-errors of the coordinator and the device based on the changed period information of the beacon frame, and a turn-on time estimation part for estimating a turn-on time of a transceiver based on the estimated beacon frame arrival-time and the estimated time-errors.

    摘要翻译： 一种用于自适应地控制收发器的接通时间以减少功耗的装置和方法。 该设备包括收发器，用于接收协调设备的协调器广播的信标帧;以及控制器，用于通过检查所接收的信标帧中的周期信息来确定信标帧的周期是否被改变。 该设备还包括：信标帧到达时间估计部分，用于基于信标帧的改变的周期信息来估计下一个要接收的信标帧的到达时间;时间误差估计部分，用于估计时间误差 基于所述信标帧的改变的周期信息的所述协调器和所述设备以及基于所估计的信标帧到达时间和所述估计的时间误差来估计收发器的接通时间的接通时间估计部分 。