公开(公告)号：US07099689B2

公开(公告)日：2006-08-29

申请号：US10610293

申请日：2003-06-30

申请人： Paramvir Bahl ,  Atul Adya ,  Alastair Wolman ,  Jitendra D. Padhye

发明人： Paramvir Bahl ,  Atul Adya ,  Alastair Wolman ,  Jitendra D. Padhye

IPC分类号： H04Q7/20

CPC分类号： H04W52/0277 ,  Y02D70/1222 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/22

摘要： Described herein is an implementation that reduces the battery consumption of an energy-constrained computing device that is capable of communicating over a wireless network. As conditions and circumstances warrant, the implementation selects one of multiple radios (e.g., two)—with each having a unique combination of characteristics (in terms of power-consumption, data-rate, range and/or frequency band of operation) for wireless communications to and from a wireless device. The implementation selects one radio to minimize power-consumption while maintaining effective wireless data communication. This abstract itself is not intended to limit the scope of this patent. The scope of the present invention is pointed out in the appending claims.

摘要翻译： 这里描述了减少能够通过无线网络进行通信的能量约束计算设备的电池消耗的实现。 根据条件和情况的需要，实现选择多个无线电（例如两个）中的一个，每个具有针对无线的特征（在功耗，数据速率，范围和/或频带方面）的独特组合 与无线设备的通信。 实现选择一个无线电以最小化功耗，同时保持有效的无线数据通信。 本摘要本身并不旨在限制本专利的范围。 在所附权利要求中指出了本发明的范围。

公开(公告)号：US08078208B2

公开(公告)日：2011-12-13

申请号：US11709962

申请日：2007-02-23

申请人： Alastair Wolman ,  Atul Adya ,  Paramvir Bahl ,  Jitendra D. Padhye ,  Lidong Zhou

发明人： Alastair Wolman ,  Atul Adya ,  Paramvir Bahl ,  Jitendra D. Padhye ,  Lidong Zhou

IPC分类号： H04B7/00

CPC分类号： H04W92/18 ,  H04L29/06 ,  H04L69/14 ,  H04W72/08 ,  H04W74/02 ,  H04W80/04 ,  H04W84/12 ,  H04W84/18 ,  H04W88/04 ,  H04W88/06

摘要： An invention is disclosed whereby a wireless network node, equipped with two or more radio transceivers statically tuned to non-interfering frequency channels, can make decisions regarding which channel to use when communicating with a neighboring wireless node. A multi-radio unification protocol implemented in a wireless node coordinates the use of multiple wireless network interface cards and provides a virtual layer that hides the multiple physical network interfaces from higher layers of a node's network protocol stack. The invention is applicable to wireless networks generally, including those in which some nodes do not have multiple radios or do not recognize the multi-radio unification protocol. The invention makes possible simultaneous transmissions using available channels, thereby reducing interference and delay while increasing the overall capacity of the network.

摘要翻译： 公开了一种发明，由此配备有两个或更多个静态调谐到非干扰频率信道的无线电收发机的无线网络节点可以在与相邻无线节点进行通信时作出关于使用哪个信道的决定。 在无线节点中实现的多无线电统一协议协调使用多个无线网络接口卡，并提供从节点网络协议栈的较高层隐藏多个物理网络接口的虚拟层。 本发明一般适用于无线网络，包括某些节点不具有多个无线电或不识别多无线电统一协议的无线网络。 本发明可以使用可用信道进行同时传输，从而减少干扰和延迟，同时增加网络的整体容量。

公开(公告)号：US07664054B2

公开(公告)日：2010-02-16

申请号：US11091641

申请日：2005-03-28

申请人： Atul Adya ,  Paramvir Bahl ,  Jitendra D. Padhye ,  Alastair Wolman

发明人： Atul Adya ,  Paramvir Bahl ,  Jitendra D. Padhye ,  Alastair Wolman

IPC分类号： H04L12/28 ,  H04B7/00 ,  H04B1/00 ,  H04B15/00 ,  H04W4/00 ,  H04H20/67

CPC分类号： H04W8/005 ,  H04W84/18

摘要： Disclosed is a Neighbor Location Discovery Protocol (NLDP) that determines the relative locations of the nodes in a mesh network. In one embodiment, NLDP can be implemented for an ad-hoc wireless network where the nodes are equipped with directional antennas and are not able to use GPS. While NLDP relies on nodes having at least two RF transceivers, it offers significant advantages over previously proposed protocols that employ only one RF transceiver. In NLDP antenna hardware is simple, easy to implement, and readily available. Further, NLDP exploits the host node's ability to operate simultaneously over non-overlapping channels to quickly converge on the neighbor's location. NLDP is limited by the range of the control channel, which operates in a omni-directional fashion. However, by choosing a low frequency band, high power, and low data rate, the range of the control channel can be increased to match the range on the data channel.

摘要翻译： 公开了一种确定网状网络中节点的相对位置的邻居位置发现协议（NLDP）。 在一个实施例中，可以为节点配备定向天线并且不能使用GPS的自组织无线网络实现NLDP。 虽然NLDP依赖于具有至少两个RF收发器的节点，但是与先前提出的仅使用一个RF收发器的协议相比，它提供了显着的优点。 在NLDP天线硬件中，简单易用，易于实现。 此外，NLDP利用主机​​节点在非重叠信道上同时操作的能力，以快速收敛在邻居的位置。 NLDP受限于以全向方式运行的控制通道的范围。 然而，通过选择低频带，高功率和低数据速率，可以增加控制信道的范围以匹配数据信道上的范围。

公开(公告)号：US07283834B2

公开(公告)日：2007-10-16

申请号：US11361126

申请日：2006-02-24

申请人： Alastair Wolman ,  Atul Adya ,  Paramvir Bahl ,  Jitendra D. Padhye ,  Lidong Zhou

发明人： Alastair Wolman ,  Atul Adya ,  Paramvir Bahl ,  Jitendra D. Padhye ,  Lidong Zhou

IPC分类号： H04B7/00

CPC分类号： H04W92/18 ,  H04L29/06 ,  H04L69/14 ,  H04W72/08 ,  H04W74/02 ,  H04W80/04 ,  H04W84/12 ,  H04W84/18 ,  H04W88/04 ,  H04W88/06

摘要： An invention is disclosed whereby a wireless network node, equipped with two or more radio transceivers statically tuned to non-interfering frequency channels, can make decisions regarding which channel to use when communicating with a neighboring wireless node. A multi-radio unification protocol implemented in a wireless node coordinates the use of multiple wireless network interface cards and provides a virtual layer that hides the multiple physical network interfaces from higher layers of a node's network protocol stack. The invention is applicable to wireless networks generally, including those in which some nodes do not have multiple radios or do not recognize the multi-radio unification protocol. The invention makes possible simultaneous transmissions using available channels, thereby reducing interference and delay while increasing the overall capacity of the network.

摘要翻译： 公开了一种发明，由此配备有两个或更多个静态调谐到非干扰频率信道的无线电收发机的无线网络节点可以在与相邻无线节点进行通信时作出关于使用哪个信道的决定。 在无线节点中实现的多无线电统一协议协调使用多个无线网络接口卡，并提供从节点网络协议栈的较高层隐藏多个物理网络接口的虚拟层。 本发明一般适用于无线网络，包括某些节点不具有多个无线电或不识别多无线电统一协议的无线网络。 本发明可以使用可用信道进行同时传输，从而减少干扰和延迟，同时增加网络的整体容量。

公开(公告)号：US07065376B2

公开(公告)日：2006-06-20

申请号：US10723673

申请日：2003-11-26

申请人： Alastair Wolman ,  Atul Adya ,  Paramvir Bahl ,  Jitendra D. Padhye ,  Lidong Zhou

发明人： Alastair Wolman ,  Atul Adya ,  Paramvir Bahl ,  Jitendra D. Padhye ,  Lidong Zhou

IPC分类号： H04B7/00

CPC分类号： H04W92/18 ,  H04L29/06 ,  H04L69/14 ,  H04W72/08 ,  H04W74/02 ,  H04W80/04 ,  H04W84/12 ,  H04W84/18 ,  H04W88/04 ,  H04W88/06

摘要： An invention is disclosed whereby a wireless network node, equipped with two or more radio transceivers statically tuned to non-interfering frequency channels, can make decisions regarding which channel to use when communicating with a neighboring wireless node. A multi-radio unification protocol implemented in a wireless node coordinates the use of multiple wireless network interface cards and provides a virtual layer that hides the multiple physical network interfaces from higher layers of a node's network protocol stack. The invention is applicable to wireless networks generally, including those in which some nodes do not have multiple radios or do not recognize the multi-radio unification protocol. The invention makes possible simultaneous transmissions using available channels, thereby reducing interference and delay while increasing the overall capacity of the network.

摘要翻译： 公开了一种发明，由此配备有两个或更多个静态调谐到非干扰频率信道的无线电收发机的无线网络节点可以在与相邻无线节点进行通信时作出关于使用哪个信道的决定。 在无线节点中实现的多无线电统一协议协调使用多个无线网络接口卡，并提供从节点网络协议栈的较高层隐藏多个物理网络接口的虚拟层。 本发明一般适用于无线网络，包括某些节点不具有多个无线电或不识别多无线电统一协议的无线网络。 本发明可以使用可用信道进行同时传输，从而减少干扰和延迟，同时增加网络的整体容量。

公开(公告)号：US20110271345A1

公开(公告)日：2011-11-03

申请号：US13179338

申请日：2011-07-08

申请人： Alastair Wolman ,  Brian D. Zill ,  Jitendra D. Padhye ,  Ranveer Chandra ,  Paramvir Bahl ,  Manpreet Singh ,  Lenin Ravindranath Sivalingam

发明人： Alastair Wolman ,  Brian D. Zill ,  Jitendra D. Padhye ,  Ranveer Chandra ,  Paramvir Bahl ,  Manpreet Singh ,  Lenin Ravindranath Sivalingam

IPC分类号： G06F21/00

CPC分类号： H04W12/12 ,  H04L63/1408 ,  H04W88/08

摘要： A method to determine if a rogue device is connected to a specific wired network from dynamic host control protocol (DHCP) requests on the wired network. These DHCP requests are analyzed to determine the type of device issuing the request. Once the type of device has been determined, it can be checked against a list of authorized device types. If the device issuing the DHCP request is not an authorized device type, then it can be determined that the suspect device is a rogue that is connected to the specific wired network. Additionally, even if the system of the present invention determines that it is an authorized device type, if the device is not one of the few authorized devices of this type, e.g. because its MAC address is not recognized as that of one of the authorized devices, the system can flag the suspect as a rogue.

摘要翻译： 一种确定流氓设备是否从有线网络上的动态主机控制协议（DHCP）请求连接到特定有线网络的方法。 分析这些DHCP请求以确定发出请求的设备的类型。 一旦确定了设备类型，就可以根据授权的设备类型列表进行检查。 如果发出DHCP请求的设备不是授权设备类型，则可以确定可疑设备是连接到特定有线网络的流氓。 另外，即使本发明的系统确定它是授权设备类型，如果该设备不是这种类型的少数授权设备之一，例如， 由于其MAC地址不被识别为其中一个授权设备的MAC地址，系统可以将嫌疑犯标记为流氓。

公开(公告)号：US07209740B2

公开(公告)日：2007-04-24

申请号：US11011010

申请日：2004-12-13

申请人： Paramvir Bahl ,  Atul Adya ,  Jitendra D. Padhye

发明人： Paramvir Bahl ,  Atul Adya ,  Jitendra D. Padhye

IPC分类号： H04Q7/20 ,  H04Q7/24

CPC分类号： H04W52/0216 ,  H04W52/0219 ,  H04W52/0241 ,  H04W52/46 ,  H04W72/14 ,  H04W84/12 ,  H04W88/04 ,  H04W88/06 ,  Y02D70/1226 ,  Y02D70/142

摘要： A method and system for optimizing channel access scheduling for multiple wireless computing devices over a wireless network improves channel access efficiency with respect to a primary channel. An access point, or host computer, includes a host transceiver for receiving control information from the wireless computing devices over a low power channel. Upon receiving the control information, the access point applies a scheduling algorithm to schedule channel access for the wireless computing devices to transmit data over the primary communication channel. The wireless computing devices include a low power radio for receiving scheduling information via the low power channel during idle periods. When the scheduling information is received, the wireless computing device activates its primary channel network interface components to communicate data through the primary channel. When the computing device is idle, the device is configured to power down all of its components with the exception of the circuitry required to power the low power channel. As such, the low power channel is maintained in an active state for receiving scheduling information, such as an access schedule, during both idle and non-idle periods.

公开(公告)号：US07668513B2

公开(公告)日：2010-02-23

申请号：US11474652

申请日：2006-06-26

申请人： Alastair Wolman ,  Brian D. Zill ,  Jitendra D. Padhye ,  Paramvir Bahl ,  Ranveer Chandra

发明人： Alastair Wolman ,  Brian D. Zill ,  Jitendra D. Padhye ,  Paramvir Bahl ,  Ranveer Chandra

IPC分类号： H04B17/00

CPC分类号： H04L43/12 ,  H04L41/0213

摘要： A framework for wireless network management applications in an enterprise environment using existing general purpose computing devices is presented. At least one of the devices is configured with a wireless adapter and is used as an AirMonitor to monitor one or more wireless networks. Other devices are configured as LandMonitors to monitor traffic on a wired network in the enterprise environment. At least one inference engine uses the LandMonitors and AirMonitors by assigning them monitoring tasks. Data from the monitoring tasks are stored in a database. Analysis of the data that is computationally intensive is generally performed by the inference engines. Wireless network management applications use the framework by installing and running application-specific components (e.g., filters) on the AirMonitors, LandMonitors, and/or inference engines.

摘要翻译： 介绍了使用现有通用计算设备的企业环境中无线网络管理应用的框架。 至少一个设备配置有无线适配器，并用作AirMonitor来监视一个或多个无线网络。 其他设备被配置为LandMonitor以监视企业环境中有线网络上的流量。 至少一个推理机通过分配监控任务来使用LandMonitor和AirMonitor。 来自监控任务的数据存储在数据库中。 计算密集的数据的分析通常由推理引擎执行。 无线网络管理应用程序通过在AirMonitor，LandMonitor和/或推理引擎上安装和运行特定于应用程序的组件（例如，过滤器）来使用该框架。

公开(公告)号：US20080201109A1

公开(公告)日：2008-08-21

申请号：US11680575

申请日：2007-02-28

申请人： Brian D. Zill ,  Alastair Wolman ,  Jitendra D. Padhye ,  Paramvir Bahl ,  Ranveer Chandra

发明人： Brian D. Zill ,  Alastair Wolman ,  Jitendra D. Padhye ,  Paramvir Bahl ,  Ranveer Chandra

IPC分类号： G06F11/30

CPC分类号： H04W24/08 ,  H04L41/5009 ,  H04L43/0829 ,  H04L43/0894

摘要： Wireless adapters are installed on one or more general purpose computing devices and are connected via a wireless network in an enterprise environment. The adapters are densely deployed at known locations throughout the environment and are configured as air monitors. The air monitors monitor wireless signals transmitted between transceiver devices and access points and records information about these signals. One or more analysis or inference engines may be deployed to analyze the signals received from the air monitors to obtain optimum performance and connectivity information about the wireless network.

摘要翻译： 无线适配器安装在一个或多个通用计算设备上，并通过企业环境中的无线网络连接。 适配器密集地部署在整个环境中的已知位置，并配置为空气监视器。 空中监视器监视在收发器设备和接入点之间传输的无线信号，并记录关于这些信号的信息。 可以部署一个或多个分析或推理引擎来分析从空中监视器接收的信号，以获得关于无线网络的最佳性能和连接信息。

公开(公告)号：US20070298779A1

公开(公告)日：2007-12-27

申请号：US11474652

申请日：2006-06-26

申请人： Alastair Wolman ,  Brian D. Zill ,  Jitendra D. Padhye ,  Paramvir Bahl ,  Ranveer Chandra

发明人： Alastair Wolman ,  Brian D. Zill ,  Jitendra D. Padhye ,  Paramvir Bahl ,  Ranveer Chandra

IPC分类号： H04B17/00 ,  H04Q7/20

CPC分类号： H04L43/12 ,  H04L41/0213

摘要： A framework for wireless network management applications in an enterprise environment using existing general purpose computing devices is presented. At least one of the devices is configured with a wireless adapter and is used as an AirMonitor to monitor one or more wireless networks. Other devices are configured as LandMonitors to monitor traffic on a wired network in the enterprise environment. At least one inference engine uses the LandMonitors and AirMonitors by assigning them monitoring tasks. Data from the monitoring tasks are stored in a database. Analysis of the data that is computationally intensive is generally performed by the inference engines. Wireless network management applications use the framework by installing and running application-specific components (e.g., filters) on the AirMonitors, LandMonitors, and/or inference engines.

摘要翻译： 介绍了使用现有通用计算设备的企业环境中无线网络管理应用的框架。 至少一个设备配置有无线适配器，并用作AirMonitor来监视一个或多个无线网络。 其他设备被配置为LandMonitor以监视企业环境中有线网络上的流量。 至少一个推理机通过分配监控任务来使用LandMonitor和AirMonitor。 来自监控任务的数据存储在数据库中。 计算密集的数据的分析通常由推理引擎执行。 无线网络管理应用程序通过在AirMonitor，LandMonitor和/或推理引擎上安装和运行特定于应用程序的组件（例如，过滤器）来使用该框架。