公开(公告)号：EP1378095A1

公开(公告)日：2004-01-07

申请号：EP02709812.8

申请日：2002-02-07

申请人： Motorola, Inc.

发明人： LEE, Chung-Chieh ,  HESTER, Lance, E. ,  O'DEA, Robert, J. ,  CHEN, Priscilla ,  ALLEN, Vernon, A. ,  BOURGEOIS, Monique, J.

IPC分类号： H04L12/28

CPC分类号： H04W40/32 ,  H04L45/26 ,  H04L45/48 ,  H04L2001/0093 ,  H04W40/246 ,  H04W40/248 ,  Y02D70/144

摘要： A network protocol for low-cost, low-power devices coupled to a self-organizing wireless network using a spanning tree backbone architecture is described. In this protocol, physical and logical network construction and maintenance operations, which supports efficient data routing in the network, are performed. The construction phase in conjunction with the maintenance phase insures the self-organizing capability of the network. At the same time, the maintenance operations provide a self-healing mechanism so that the network can recover from node failures and a self-updating mechanism so that the network can expand as more nodes enter the system. Also, the logical backbone hierarchy will facilitate multi-hop communication. The construction of a logical layered spanning tree backbone architecture from an underlying physical topology allows seamless data communication routing between all nodes in the network.

摘要翻译： 描述了使用生成树骨架结构耦合到自组织无线网络的低成本，低功率设备的网络协议。 在该协议中，执行支持网络中高效数据路由的物理和逻辑网络构建和维护操作。 与维护阶段相结合的施工阶段确保了网络的自组织能力。 同时，维护操作提供了一种自我修复机制，使网络能够从节点故障和自动更新机制中恢复，从而随着更多的节点进入系统，网络可以扩展。 此外，逻辑骨干层次结构将有助于多跳通信。 从底层物理拓扑构建逻辑分层生成树骨干架构允许网络中所有节点之间的无缝数据通信路由。

公开(公告)号：EP1352259A2

公开(公告)日：2003-10-15

申请号：EP01992170.9

申请日：2001-12-19

申请人： MOTOROLA, INC.

发明人： PATWARI, Neal, K. ,  O'DEA, Robert, J. ,  ALLEN, Vernon, A. ,  PERKINS, Matthew, R. ,  BOURGEOIS, Monique, J.

IPC分类号： G01S1/00

CPC分类号： G01C21/206 ,  G01S5/0018 ,  G01S5/0072 ,  G01S5/0289 ,  G01S11/02 ,  G01S13/84 ,  G01S2205/002

摘要： A system for locating a number of devices (112-130) by measuring signals transmitted between known location devices (112-118, 134-138, 214-218, 224-228) and unknown location devices (120-130, 222), and signals transmitted between pairs of unknown location devices (120-130,222), entering signal measurements into a graph function that includes a number of first sub-expressions, a number of which include signal measurement prediction sub-expressions, and have extrema when a predicted signal measurement is equal to an actual signal measurement, and optimizing the graph function.