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：US20090216349A1

公开(公告)日：2009-08-27

申请号：US12390031

申请日：2009-02-20

申请人： Dae Hyung KWON ,  Sun Gi Kim ,  Kang Young Moon ,  Hyunseung Choo ,  Vladimir V. Shakhov

发明人： Dae Hyung KWON ,  Sun Gi Kim ,  Kang Young Moon ,  Hyunseung Choo ,  Vladimir V. Shakhov

IPC分类号： G06F1/32 ,  G05B13/02

CPC分类号： H04W52/0219 ,  G05B2219/25291 ,  H04W52/0277 ,  Y02D70/00

摘要： A method and system are provided that extend the lifetime of sensor nodes in a wireless sensor network while ensuring network availability. An availability level is set for ensuring network connectivity corresponding to importance of network connectedness. An operation probability that a sensor node is in operation is calculated. A total sleeping time of the sensor node is calculated that minimizes the operation probability while maintaining the availability level.

摘要翻译： 提供了一种方法和系统，其延长无线传感器网络中的传感器节点的寿命，同时确保网络可用性。 设置可用性级别以确保网络连接对应于网络连接性的重要性。 计算传感器节点正在运行的操作概率。 计算传感器节点的总睡眠时间，其在维持可用性水平的同时最小化操作概率。