公开(公告)号：WO2004109474A3

公开(公告)日：2005-05-19

申请号：PCT/US2004018127

申请日：2004-06-07

Applicant: MESHNETWORKS INC ,  JOSHI AVINASH ,  STRUTT GUENAEL T

Inventor： JOSHI AVINASH ,  STRUTT GUENAEL T

IPC: H04L12/28 ,  H04L12/56 ,  H04L29/08 ,  H04W24/00 ,  H04W40/14 ,  H04W40/18 ,  H04W48/08 ,  H04W84/18 ,  H04W88/04 ,  H04W92/18 ,  G06F15/173

CPC classification number: H04W24/08 ,  H04L45/00 ,  H04L69/329 ,  H04W24/00 ,  H04W40/14 ,  H04W40/18 ,  H04W72/085 ,  H04W84/18 ,  H04W92/18

Abstract: A system and method for characterizing the quality of a link, in particular, a bi-directional link, between nodes in a wireless communication network, such as a wireless ad-hoc peer-to-peer network, with minimum network overhead. The system and method determine the quality of link between two nodes by taking into consideration the view from both the nodes, and factors such as signal strength, signal-to-noise ratio or any statistic collected at the physical layer that is deemed representative of the quality of a link. The link quality can also be adjusted using a weighting factor.

Abstract translation: 一种系统和方法，用于以最小的网络开销来表征无线通信网络（例如无线自组织对等网络）中的节点之间的链路质量，特别是双向链路。 该系统和方法通过考虑来自两个节点的视图以及诸如信号强度，信噪比或在物理层收集的任何统计数据来确定两个节点之间的链路质量，所述统计数据被认为代表 链接的质量。 链路质量也可以使用加权因子进行调整。

公开(公告)号：WO2004111776A2

公开(公告)日：2004-12-23

申请号：PCT/US2004/017720

申请日：2004-06-04

Applicant: MESHNETWORKS, INC. ,  BELCEA, John, M. ,  WELSH, Shawn, P. ,  ROBERSON, Allen, M. ,  HILL, Philip, J. ,  SCHMIDT, Jeffrey, C. ,  A'RAFAT, Sa'Ed ,  GREEN, James

Inventor： BELCEA, John, M. ,  WELSH, Shawn, P. ,  ROBERSON, Allen, M. ,  HILL, Philip, J. ,  SCHMIDT, Jeffrey, C. ,  A'RAFAT, Sa'Ed ,  GREEN, James

IPC: G06F

CPC classification number: G01S5/0252 ,  H04L67/12 ,  H04L67/18 ,  H04W24/00 ,  H04W40/00 ,  H04W52/46 ,  H04W64/00 ,  H04W74/04 ,  H04W84/18 ,  H04W92/18

Abstract: A system and method for deploying a network of wireless devices, including mobile terminals, wireless routers and a least one control console, within a three dimensional deployment area such as a building, so that communication, identification and position calculations of personnel, such as firefighters, using the mobile terminals can be achieved regardless of building structure. The wireless routers are deployed in a substantial vertical manner in staircases and elevator shafts of a building of interest, either in advance as part of a safety program or immediately upon arrival of firefighters or other team at the building during an emergency. The system and method according to the embodiment of the present invention described herein uses both TOF and RSSI between the mobile terminals and wireless routers to identify the floor numbers where firefighters are located and to track firefighter movements.

Abstract translation: 一种用于在诸如建筑物的三维部署区域内部署包括移动终端，无线路由器和至少一个控制台在内的无线设备的网络的系统和方法，以便消除人员的通信，识别和位置计算 无论建筑结构如何，都可以实现移动终端的使用。 无线路由器以大致垂直方式部署在建筑物的楼梯和电梯井中，提前作为安全程序的一部分，或者在紧急情况下立即抵达消防员或其他团队在建筑物处。 根据本文所描述的本发明的实施例的系统和方法使用移动终端和无线路由器之间的TOF和RSSI来识别消防员所在的楼层号码并跟踪消防员运动。

公开(公告)号：WO2004109476A2

公开(公告)日：2004-12-16

申请号：PCT/US2004/018130

申请日：2004-06-07

Applicant: MESHNETWORKS, INC. ,  JOSHI, Avinash ,  ZENG, Surong

Inventor： JOSHI, Avinash ,  ZENG, Surong ,  STRUTT, Guenael, T.

IPC: G06F

CPC classification number: H04W4/14

Abstract: A system and method for data transmission using a multi-channel medium access control (MAC) protocol to send small messages on the reservation channel directly without any RTS/CTS handshake or channel switching delays. The message is assigned a special type so that it can be distinguished from the RTS/CTS message. The message can also include information about congestion, activity, device type, mobility level, and so forth.

Abstract translation: 一种用于使用多信道媒体接入控制（MAC）协议进行数据传输的系统和方法，用于在预留信道上直接发送小消息，而没有任何RTS / CTS握手或信道切换延迟。 该消息被分配一种特殊类型，以便可以将其与RTS / CTS消息进行区分。 该消息还可以包括关于拥塞，活动，设备类型，移动性等级的信息。

公开(公告)号：WO2004109474A2

公开(公告)日：2004-12-16

申请号：PCT/US2004/018127

申请日：2004-06-07

Applicant: MESHNETWORKS, INC. ,  JOSHI, Avinash ,  STRUTT, Guénaël, T.

Inventor： JOSHI, Avinash ,  STRUTT, Guénaël, T.

IPC: G06F

CPC classification number: H04W24/08 ,  H04L45/00 ,  H04L69/329 ,  H04W24/00 ,  H04W40/14 ,  H04W40/18 ,  H04W72/085 ,  H04W84/18 ,  H04W92/18

Abstract: A system and method for characterizing the quality of a link, in particular, a bi-directional link, between nodes in a wireless communication network, such as a wireless ad-hoc peer-to-peer network, with minimum network overhead. The system and method determine the quality of link between two nodes by taking into consideration the view from both the nodes, and factors such as signal strength, signal-to-noise ratio or any statistic collected at the physical layer that is deemed representative of the quality of a link. The link quality can also be adjusted using a weighting factor.

Abstract translation: 用于以最小的网络开销来表征诸如无线自组织对等网络的无线通信网络中的节点之间的链路质量，特别是双向链路的质量的系统和方法。 系统和方法通过考虑两个节点的视图来确定两个节点之间的链路的质量，以及诸如信号强度，信噪比或被认为代表的节点的物理层收集的任何统计量 链接质量。 也可以使用加权因子来调整链路质量。

公开(公告)号：WO2003105389A2

公开(公告)日：2003-12-18

申请号：PCT/US2003/017248

申请日：2003-06-04

Applicant: MESHNETWORKS, INC. ,  ALAPURANEN, Pertti, O.

Inventor： ALAPURANEN, Pertti, O.

IPC: H04L

CPC classification number: H04L1/0023 ,  H04L1/1887 ,  H04W24/00 ,  H04W28/18 ,  H04W74/00 ,  H04W84/18

Abstract: A system and method for a media access control (MAC) algorithm with separate operation modes for good channel and bad channel communication. Variables, including channel vector values transmitted in request-to-send/clear-to-send (RTS/CTS) messages, are varied depending on channel mode, resulting in optimized system throughput. In a first mode, the present invention provides a system and method to estimate a channel vector length, and communicate the length to a first node and any associated groups of nodes receiving the RTS/CTS sequence. In a second mode, a maximum channel vector length is used, as retransmissions are less probable in good channels.

Abstract translation: 一种用于媒体访问控制（MAC）算法的系统和方法，具有用于良好信道和坏信道通信的单独操作模式。 包括在请求发送/清除发送（RTS / CTS）消息中发送的信道向量值的变量根据信道模式而变化，从而导致优化的系统吞吐量。 在第一模式中，本发明提供了一种用于估计信道向量长度并将长度传送给接收RTS / CTS序列的第一节点和任何相关联的节点组的系统和方法。 在第二模式中，使用最大信道向量长度，因为重传在较好的信道中较不可能。

公开(公告)号：WO2003105353A2

公开(公告)日：2003-12-18

申请号：PCT/US2003/018139

申请日：2003-06-10

Applicant: MESHNETWORKS, INC. ,  WHITE, Eric, D. ,  ALAPURANEN, Pertti, O.

Inventor： WHITE, Eric, D. ,  ALAPURANEN, Pertti, O.

IPC: H04B

CPC classification number: H04L1/1854 ,  H04L1/1812 ,  H04L1/1867 ,  H04L12/1868 ,  H04L12/189 ,  H04L45/00 ,  H04L45/16 ,  H04L45/34 ,  H04L69/22 ,  H04L2001/0093 ,  H04W68/00 ,  H04W74/08 ,  H04W84/18

Abstract: An improved system and method of transmitting messages to multiple destination nodes is provided, in which a message from a source node is addressed to a multicast-broadcast address, and multiple destination node addresses are included in the message header. Destination nodes which successfully receive the transmission calculate a timeslot in which to transmit an acknowledgement message based on the position of their address in the message header. The source node can then provide a retransmission to destination nodes which did not successfully receive the transmission as either a multicast-broadcast or a unicast communication depending on acknowledgement messages received.

Abstract translation: 提供了将消息发送到多个目的地节点（102）的改进的系统和方法，其中来自源节点的消息被寻址到多播广播地址，并且多个目的地节点地址被包括在消息头中。 成功接收传输的目的地节点（102）基于其在消息报头中的地址的位置来计算发送确认消息的时隙。 然后，根据接收到的确认消息，源节点可以向目的地节点（102）提供未被成功地接收传输的重传作为组播广播或单播通信。

公开(公告)号：WO2003098814A3

公开(公告)日：2003-11-27

申请号：PCT/US2003/013347

申请日：2003-04-29

Applicant: MESHNETWORKS, INC. ,  STANFORTH, Peter, J. ,  WHITEHILL, Eric A. ,  WHITE, Eric, D.

Inventor： STANFORTH, Peter, J. ,  WHITEHILL, Eric A. ,  WHITE, Eric, D.

IPC: H04L12/28

Abstract: A system and method for detecting communication requirements in a network (100) and placing nodes (102, 107) in various stages of activity where conditions allow. The system and method provides an algorithm to detect changes in node activity levels and alter operations, such as update transmissions and route selections, based upon changes detected. In particular, the algorithm determines activity level at a node (102, 107) at each routing update interval based on factors such as a number of new destinations the node can reach, a number of route modifications that the node (102, 106) can implement, a number of routes from the node whose lengths have changed and a number of destinations thet node (102, 107) can no longer reach. The node can then increase or decrease the rate that it exchanges its routing information with neighboring nodes based on an increase or decrease in this activity level.

公开(公告)号：WO2003090365A3

公开(公告)日：2003-10-30

申请号：PCT/US2003/011365

申请日：2003-04-14

Applicant: MESHNETWORKS, INC. ,  GARAHI, Masood ,  ELKINGTON, William, C.

Inventor： GARAHI, Masood ,  ELKINGTON, William, C.

IPC: G01C21/30

Abstract: A System and method (figure 4) for sending and receiving messages, such as status or request for help messages, automatically between mobile nodes and ultimately to an appropriate destination via wireless infrastructure. "When a node determines that such infrastructure is not available, the node will communicate the necessary information to another mobile node located in, for instance, a vehicle. In this case, the receiving node stores the information, then transmit the information from that node to the wireless infrastructure equipment, so that the infrastructure can forward (he message to an appropriate destination once such equipment is in a range of this second node.

公开(公告)号：WO2003079611A1

公开(公告)日：2003-09-25

申请号：PCT/US2003/007516

申请日：2003-03-12

Applicant: MESHNETWORKS, INC. ,  BELCEA, John, M.

Inventor： BELCEA, John, M.

IPC: H04L12/26

CPC classification number: H04W52/267 ,  H04W52/22 ,  H04W52/242 ,  H04W52/46

Abstract: A system and method for selecting an appropriate transmit power and data rate at which a communication signal is transmitted over a link between nodes in a wireless ad-hoc communication network based on factors such as variations in path loss in the link, fading conditions, noise level estimation and overall link quality. The system and method dynamically computes path loss in the link based on characteristics of a message transmitted from the source node (102, 106, 107) to the destination node (102, 106, 107), determines a noise factor at the destination node, and calculates the power level and rate at which the data is transmitted over the link based on the computed path loss and noise factor. Accordingly, the system and method are capable of determining the proper level of transmit power and data rate for assuring that the destination node will receive the data transmitted by the source node at a reliability of at least 90%.

Abstract translation: 一种用于选择通过无线自组织通信网络中的节点之间的链路发送通信信号的适当发射功率和数据速率的系统和方法，所述系统和方法基于诸如链路中的路径损耗的变化，衰落条件，噪声 水平估计和总体链路质量。 系统和方法基于从源节点（102,106,107）发送到目的地节点（102,106,107）的消息的特性来动态地计算链路中的路径损耗，确定目的地节点处的噪声因子， 并基于所计算的路径损耗和噪声因子来计算通过链路传输数据的功率电平和速率。 因此，系统和方法能够确定发送功率和数据速率的适当水平，以确保目的地节点将以至少90％的可靠性接收由源节点发送的数据。

公开(公告)号：WO03021817A8

公开(公告)日：2003-09-18

申请号：PCT/US0225800

申请日：2002-08-15

Applicant: MESHNETWORKS INC ,  ROBERTS ROBIN

Inventor： ROBERTS ROBIN

IPC: H04L12/28 ,  H04L12/56 ,  H04B7/185

CPC classification number: H04L45/00 ,  H04W84/18 ,  H04W88/02 ,  H04W88/14

Abstract: A system and method for enabling a mobile user terminal in an ad-hoc packet-switched wireless network to selectably operate as a router for other terminals in the network based on certain criteria. The user terminal (102-1-102-m, figure 1) comprise transceiver and controller. The transceiver is adapted to transmit communication data addressed to a destination user terminal via at least one other user terminal acting as a router. The controller is adapted to prevent transmission based on the one other user terminals capability to route the data. The user terminal stores routing data received from the other user terminal or from the network.

Abstract translation: 基于某些标准，用于使自组织分组交换无线网络中的移动用户终端能够可选地操作为网络中的其他终端的路由器的系统和方法。 用户终端（102-1-102-m，图1）包括收发机和控制器。 该收发器适于经由充当路由器的至少一个其他用户终端来发送寻址到目的地用户终端的通信数据。 控制器适于防止基于另一个用户终端能力来路由数据的传输。 用户终端存储从其他用户终端或从网络接收到的路由数据。