公开(公告)号：US07889674B2

公开(公告)日：2011-02-15

申请号：US11198168

申请日：2005-08-08

申请人： Jong-hun Park ,  Jian liang Zheng ,  Myung-jong Lee

发明人： Jong-hun Park ,  Jian liang Zheng ,  Myung-jong Lee

IPC分类号： H04L12/28

CPC分类号： H04W8/26 ,  H04L29/12009 ,  H04L61/00 ,  H04W40/32 ,  H04W84/18

摘要： An address assigning method in a ZigBee network environment formed of a plurality of devices (or nodes), includes: linking the plurality of nodes in a cluster-tree structure; requesting desirable address blocks from a lowest level to a second highest level of the tree ancestor nodes desirable address blocks, respectively; and assigning the desired address blocks to descendents using a top-down procedure.

摘要翻译： 由多个设备（或节点）形成的ZigBee网络环境中的地址分配方法包括：以簇树结构链接多个节点; 从所述树祖先节点所期望的地址块的最低级别到第二高级别请求期望的地址块; 并使用自上而下的过程将所需的地址块分配给后代。

公开(公告)号：US07656848B2

公开(公告)日：2010-02-02

申请号：US10888024

申请日：2004-07-12

申请人： Jong-hun Park ,  Yong Liu ,  Myung-jong Lee

发明人： Jong-hun Park ,  Yong Liu ,  Myung-jong Lee

IPC分类号： H04J3/24

CPC分类号： H04W40/246 ,  H04L45/04 ,  H04W40/30 ,  H04W40/32

摘要： A routing requesting method to transmit data to a device of a different piconets in a scatternet including at least two piconets which have a master device and at least one slave device controlled by the master device. A source device generates as a single packet an information inquiring a first radio resource used in each device of the piconet and an information requesting the routing. The source device broadcasts the packet to adjacent devices. The adjacent device, which receives the generated packet, sends the packet to a destination device by repeating the above process. The destination device assigns itself the master device, generates a RREP message including a clock information, and sends the generated RREP message to an adjacent device. The source device becomes aware of devices along the route using the information contained in the RREP message.

摘要翻译： 一种路由请求方法，用于向散域网中的不同微微网的设备发送数据，所述微网包括至少两个具有由主设备控制的主设备和至少一个从设备的微微网。 源设备生成询问在微微网的每个设备中使用的第一无线电资源的信息和请求路由的信息作为单个分组。 源设备将数据包广播到相邻设备。 接收生成的分组的相邻设备通过重复上述过程将分组发送到目的地设备。 目的设备自己分配主设备，生成包括时钟信息的RREP消息，并将生成的RREP消息发送给相邻设备。 源设备使用包含在RREP消息中的信息来了解沿着路由的设备。

公开(公告)号：US07450553B2

公开(公告)日：2008-11-11

申请号：US10898234

申请日：2004-07-26

申请人： Jong-hun Park ,  Yong Liu ,  Myung-jong Lee ,  Xu-hui Hu

发明人： Jong-hun Park ,  Yong Liu ,  Myung-jong Lee ,  Xu-hui Hu

IPC分类号： H04Q7/24 ,  H04J3/00

CPC分类号： H04W74/006 ,  H04W88/04

摘要： A system and method for selecting a starting point to transmit a beacon (BTSP) from a coordinator and a first node in a communication system. The communication system includes the coordinator, a first node group with at least one node having the first node which receives the beacon from the coordinator, and a second node group with at least one node having a second node which receives the beacon from the first node. The coordinator determines a beacon window size for the beacon transmission, selects the BTSP within the beacon window size, and transmits at the BTSP, the beacon containing information on the beacon window size and the BTSP. The first node selects its BTSP within the beacon window size so as not to overlap with the BTSP of the received beacon.

摘要翻译： 一种用于从通信系统中的协调器和第一节点选择发送信标（BTSP）的起始点的系统和方法。 所述通信系统包括所述协调器，具有至少一个节点的第一节点组，所述节点具有从所述协调器接收所述信标的所述第一节点，以及具有至少一个节点的第二节点组，所述第二节点具有从所述第一节点接收所述信标的第二节点 。 协调器确定信标发送的信标窗口大小，在信标窗口大小内选择BTSP，并在BTSP发送包含信标窗口大小和BTSP信息的信标。 第一节点在信标窗口大小内选择其BTSP，以便不与接收的信标的BTSP重叠。

公开(公告)号：US07266386B2

公开(公告)日：2007-09-04

申请号：US10817926

申请日：2004-04-06

申请人： Ji-tae Kim ,  Myung-jong Lee ,  Chun-hui Zhu

发明人： Ji-tae Kim ,  Myung-jong Lee ,  Chun-hui Zhu

IPC分类号： H04M1/00 ,  H04B1/04 ,  H04Q7/20

CPC分类号： H04W52/343 ,  H04W52/346 ,  H04W52/36 ,  H04W52/48 ,  H04W84/18 ,  Y02D70/20

摘要： A method for packet re-flooding in a wireless ad hoc network for transmitting a broadcast packet from a source node to a destination node. In order to determine the respective nodes received with the broadcast packet from the source node into a certain number of power levels in accordance with the receiving power of the signal carrying the received packet, the packet re-flooding method includes the steps of setting a power level reference by which the power level increases as the receiving power increases, obtaining the receiving power of the signal carrying the packet received from the respective nodes but not the source node, determining power levels based on the power level reference and the obtained receiving power, calculating a back-off delay time in accordance with the power levels of the respective nodes but not the source node, and re-flooding the received packet when the calculated back-off delay time of the respective nodes excluding the source node expires and when the received packet is the first packet that is received. Accordingly, the possibility of having collisions due to re-flooding of the respective nodes is reduced, and also, overall power consumption of the network decreases.

摘要翻译： 一种在无线自组织网络中用于将广播分组从源节点发送到目的地节点的分组再溢出的方法。 为了根据承载接收到的分组的信号的接收功率，将从源节点的广播分组接收到的各个节点确定为一定数量的功率电平，分组再溢出方法包括以下步骤：设置功率 功率电平随着接收功率增加而增加的等级参考，获得承载从各个节点而不是源节点接收的分组的信号的接收功率，基于功率电平参考和获得的接收功率确定功率电平， 根据各个节点而不是源节点的功率电平计算退避延迟时间，并且当所计算出的不包括源节点的各个节点的退避延迟时间到期时，并且当 接收到的数据包是接收到的第一个数据包。 因此，减少了由于各个节点的重新溢出引起的冲突的可能性，并且网络的总体功耗也减小。

公开(公告)号：US20060291496A1

公开(公告)日：2006-12-28

申请号：US11431012

申请日：2006-05-10

申请人： Jianliang Zheng ,  Myung-jong Lee

发明人： Jianliang Zheng ,  Myung-jong Lee

IPC分类号： H04J3/26

CPC分类号： H04W40/32 ,  H04L45/04 ,  H04L45/46 ,  H04W40/34

摘要： A routing method in a wireless network and a communication device using the same is provided. The routing method in the tree-based wireless network includes acquiring an optimal route using a table which is recorded based on received information on neighbor nodes and received information on lower nodes of the neighbor nodes, and transmitting a packet through the optimal route. Accordingly, tree-based mesh routing which performs route discovery block by block is used in order to increase the efficiency of route discovery, and a packet is transmitted through an optimal route so that communication costs can be reduced.

摘要翻译： 提供了无线网络中的路由方法和使用该方法的通信设备。 基于树的无线网络中的路由方法包括：使用基于邻居节点上接收到的信息记录的表和邻居节点下级节点接收到的信息来获取最优路由，并通过最优路由发送报文。 因此，为了提高路由发现的效率，使用逐块执行路由发现的基于树的网状路由，并且通过最优路由发送分组，从而能够降低通信成本。

公开(公告)号：US20050281207A1

公开(公告)日：2005-12-22

申请号：US11151651

申请日：2005-06-14

申请人： Myung-jong Lee ,  Yong Liu ,  Xu-hui Hu

发明人： Myung-jong Lee ,  Yong Liu ,  Xu-hui Hu

IPC分类号： H04L12/28 ,  H04L12/56 ,  H04L29/12

CPC分类号： H04W8/26 ,  H04L29/12254 ,  H04L29/12801 ,  H04L45/04 ,  H04L45/46 ,  H04L61/2038 ,  H04L61/6004

摘要： A ZigBee network device assigns addresses to its child devices. The ZigBee network device includes a communication section that connects the ZigBee network device to other devices and which communicates with the other devices; a parameter determination section that determines at least one network parameter; a calculation section that calculates addresses for child devices of the ZigBee network device based on a determined network parameter, where each of the child devices is connected to the ZigBee network device via the communication section; and a controller that assigns addresses to the child devices of the ZigBee network device. At least one determined network parameter is at least one of Cm, which indicates a maximum number of the child devices of the ZigBee network device, and Rm, which indicates a maximum number of the child devices of the ZigBee network device which have routing capabilities.

摘要翻译： ZigBee网络设备为其子设备分配地址。 ZigBee网络设备包括将ZigBee网络设备连接到其他设备并与其他设备进行通信的通信部分; 确定至少一个网络参数的参数确定部分; 计算部，其基于确定的网络参数来计算ZigBee网络设备的子设备的地址，其中每个子设备经由通信部分连接到ZigBee网络设备; 以及向ZigBee网络设备的子设备分配地址的控制器。 至少一个确定的网络参数是指示ZigBee网络设备的最大数量的子设备的Cm和Rm中的至少一个，其指示具有路由功能的ZigBee网络设备的最大数量的子设备。

公开(公告)号：US20050047428A1

公开(公告)日：2005-03-03

申请号：US10898234

申请日：2004-07-26

申请人： Jong-hun Park ,  Yong Liu ,  Myung-jong Lee ,  Xu-hui Hu

发明人： Jong-hun Park ,  Yong Liu ,  Myung-jong Lee ,  Xu-hui Hu

IPC分类号： H04B7/26 ,  H04L12/28 ,  H04W74/00 ,  H04W88/04

CPC分类号： H04W74/006 ,  H04W88/04

摘要： A system and method for selecting a starting point to transmit a beacon (BTSP) from a coordinator and a first node in a communication system. The communication system includes the coordinator, a first node group with at least one node having the first node which receives the beacon from the coordinator, and a second node group with at least one node having a second node which receives the beacon from the first node. The coordinator determines a beacon window size for the beacon transmission, selects the BTSP within the beacon window size, and transmits at the BTSP, the beacon containing information on the beacon window size and the BTSP. The first node selects its BTSP within the beacon window size so as not to overlap with the BTSP of the received beacon.

摘要翻译： 一种用于从通信系统中的协调器和第一节点选择发送信标（BTSP）的起始点的系统和方法。 所述通信系统包括所述协调器，具有至少一个节点的第一节点组，所述节点具有从所述协调器接收所述信标的所述第一节点，以及具有至少一个节点的第二节点组，所述第二节点具有从所述第一节点接收所述信标的第二节点 。 协调器确定信标发送的信标窗口大小，在信标窗口大小内选择BTSP，并在BTSP发送包含信标窗口大小和BTSP信息的信标。 第一节点在信标窗口大小内选择其BTSP，以便不与接收的信标的BTSP重叠。

公开(公告)号：US09655006B2

公开(公告)日：2017-05-16

申请号：US11445192

申请日：2006-06-02

申请人： Chunhui Zhu ,  Myung-Jong Lee ,  Jun-Seo Lee ,  Rakesh Taori ,  Sung-Won Lee

发明人： Chunhui Zhu ,  Myung-Jong Lee ,  Jun-Seo Lee ,  Rakesh Taori ,  Sung-Won Lee

IPC分类号： H04W28/10 ,  H04W74/08 ,  H04W84/18

CPC分类号： H04W28/10 ,  H04W74/08 ,  H04W84/18

摘要： A system and method for controlling congestion using Request-to-Send (RTS) and Clear-to-Send (CTS) in a wireless mesh network are provided. A receiver in a congestion state sets a duration field value of congestion control in a CTS frame and transmits the CTS frame to a sender. In response, the sender retransmits an RTS frame to the receiver without transmitting data, after waiting for an RTS retransmission waiting time period corresponding to the duration field value. The congestion state information is broadcast to neighboring nodes. Therefore, the congestion control system using the CTS frame does not use a separate frame for the congestion control. And, all of the neighboring nodes can participate in the congestion control, increasing the network efficiency.

公开(公告)号：US08638695B2

公开(公告)日：2014-01-28

申请号：US11723196

申请日：2007-03-16

申请人： Jianliang Zheng ,  Myung-Jong Lee ,  Jin-Sae Jung

发明人： Jianliang Zheng ,  Myung-Jong Lee ,  Jin-Sae Jung

IPC分类号： H04L12/28 ,  H04L12/56

CPC分类号： H04L45/48 ,  H04L45/00 ,  H04L45/04 ,  H04L45/28 ,  H04L45/54 ,  H04W40/24 ,  H04W40/30

摘要： A routing method of a wireless communication system is provided implementing advantageous features of both the tree routing and the link state routing. In the routing method, the system generates an adaptive tree table which defines a network in a tree structure of at least one branch with at least one node and each node generates a link state table which includes information on neighbor nodes, such that the packets are routed on the basis of the adaptive tree table and the link state table. Advantageous mechanisms of the tree routing and the link state routing are combined, thereby it is possible to eliminate most single point of failures of conventional tree routing and provide shorter paths compared with conventional tree routing.

摘要翻译： 提供了一种无线通信系统的路由方法，其实现了树路由和链路状态路由的有利特征。 在路由方法中，系统生成自适应树表，该自适应树表定义具有至少一个节点的至少一个分支的树结构中的网络，并且每个节点生成包括关于邻居节点的信息的链路状态表，使得分组是 在自适应树表和链路状态表的基础上进行路由。 组合树路由和链路状态路由的有利机制，从而可以消除常规树路由的大多数单点故障，并提供比传统树路由更短的路径。

公开(公告)号：US08126005B2

公开(公告)日：2012-02-28

申请号：US11833655

申请日：2007-08-03

申请人： Tae Rim Park ,  Myung Jong Lee ,  Ji Tae Kim

发明人： Tae Rim Park ,  Myung Jong Lee ,  Ji Tae Kim

IPC分类号： H04J3/17

CPC分类号： H04W48/12 ,  H04W84/18

摘要： A communication apparatus, wherein the communication apparatus selects a superframe from W consecutive superframes, and starts each of the W consecutive superframes without transmitting a beacon in a first time period of each of the W consecutive superframes when a superframe to be started is different from the selected superframe.

摘要翻译： 一种通信装置，其中，所述通信装置从W连续的超帧中选择超帧，并且在所述W连续超帧中的每一个的第一时间段内，当所述开始的超帧与 选择超帧