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249 条记录 (耗时 0.033 秒)

    Detect User-Perceived Faults Using Packet Traces in Enterprise Networks
    91.
    发明申请
    Detect User-Perceived Faults Using Packet Traces in Enterprise Networks 有权
    在企业网络中使用数据包跟踪检测用户感知故障

    公开(公告)号：US20080209273A1

    公开(公告)日：2008-08-28

    申请号：US11680477

    申请日：2007-02-28

    申请人： Paramvir Bahl ,  Ranveer Chandra ,  Lun Li ,  David A. Maltz ,  Ming Zhang

    发明人： Paramvir Bahl ,  Ranveer Chandra ,  Lun Li ,  David A. Maltz ,  Ming Zhang

    IPC分类号： G06F11/00

    CPC分类号： H04L41/0681

    摘要： Exemplary methods, computer-readable media, and systems for detecting a fault by a packet trace, includes monitoring at least one packet transmitted to or received from, an computing device of an end user, between one or more computing devices implementing at least one of a service or an application on an enterprise network. The process also includes identifying whether an abnormal condition occurred on the computing device of the end user based on monitoring at least one packet transmitted to or received from, the computing device of the end user; and detecting a fault by using an algorithm based on monitoring at least one packet transmitted or received from, the computing device of the end user; wherein the fault indicates a desired course of action did not occur while the computing device of the end user uses at least one of the service or the application in the enterprise network.

    摘要翻译： 用于通过分组跟踪检测故障的示例性方法，计算机可读介质和系统包括监视在一个或多个计算设备之间发送到终端用户的计算设备或从终端用户的计算设备接收的至少一个分组，其实现以下中的至少一个： 企业网络上的服务或应用程序。 该过程还包括基于监视终端用户的计算设备发送到或从其接收到的至少一个分组来识别终端用户的计算设备上是否发生异常状况; 以及通过使用基于监视从最终用户的计算设备发送或接收的至少一个分组的算法来检测故障; 其中所述故障指示在所述终端用户的计算设备使用所述企业网络中的所述服务或应用中的至少一个的情况下不发生期望的操作过程。

    COLLABORATIVELY LOCATING DISCONNECTED CLIENTS AND ROGUE ACCESS POINTS IN A WIRELESS NETWORK
    92.
    发明申请
    COLLABORATIVELY LOCATING DISCONNECTED CLIENTS AND ROGUE ACCESS POINTS IN A WIRELESS NETWORK 有权
    在无线网络中协调定位不连接的客户端和ROGUE接入点

    公开(公告)号：US20080070563A1

    公开(公告)日：2008-03-20

    申请号：US11940466

    申请日：2007-11-15

    申请人： Atul Adya ,  Paramvir Bahl ,  Ranveer Chandra ,  Lili Qiu

    发明人： Atul Adya ,  Paramvir Bahl ,  Ranveer Chandra ,  Lili Qiu

    IPC分类号： H04Q7/20

    CPC分类号： H04W12/12 ,  H04W24/08 ,  H04W64/00

    摘要： Methods are described for using collaboration of neighboring wireless devices to enable location of disconnected wireless devices and rogue wireless access points. A central server computes the locations of the neighboring clients and uses those locations to estimate the location of a disconnected client. These techniques may take advantage of the beaconing and probing mechanisms of IEEE 802.11 to ensure that connected clients do not pay unnecessary overheads for detecting disconnected clients. Methods are also described for detecting and locating rogue devices by collaboratively collecting information from neighboring devices and comparing the information to a database.

    摘要翻译： 描述了使用相邻无线设备的协作来实现断开的无线设备和流氓无线接入点的位置的方法。 中央服务器计算相邻客户端的位置，并使用这些位置来估计断开的客户端的位置。 这些技术可以利用IEEE 802.11的信标和探测机制来确保连接的客户端不会为检测断开的客户端支付不必要的开销。 还描述了通过协同收集来自相邻设备的信息并将该信息与数据库进行比较来检测和定位流氓设备的方法。

    Collaboratively locating disconnected clients and rogue access points in a wireless network
    93.
    发明授权
    Collaboratively locating disconnected clients and rogue access points in a wireless network 有权
    在无线网络中协作定位不连接的客户端和流氓接入点

    公开(公告)号：US07317914B2

    公开(公告)日：2008-01-08

    申请号：US11047022

    申请日：2005-01-31

    申请人： Atul Adya ,  Paramvir Bahl ,  Ranveer Chandra ,  Lili Qiu

    发明人： Atul Adya ,  Paramvir Bahl ,  Ranveer Chandra ,  Lili Qiu

    IPC分类号： H04M11/00

    CPC分类号： H04W12/12 ,  H04W24/08 ,  H04W64/00

    摘要： Methods are described for using collaboration of neighboring wireless devices to enable location of disconnected wireless devices and rogue wireless access points. A central server computes the locations of the neighboring clients and uses those locations to estimate the location of a disconnected client. These techniques may take advantage of the beaconing and probing mechanisms of IEEE 802.11 to ensure that connected clients do not pay unnecessary overheads for detecting disconnected clients. Methods are also described for detecting and locating rogue devices by collaboratively collecting information from neighboring devices and comparing the information to a database.

    摘要翻译： 描述了使用相邻无线设备的协作来实现断开的无线设备和流氓无线接入点的位置的方法。 中央服务器计算相邻客户端的位置，并使用这些位置来估计断开的客户端的位置。 这些技术可以利用IEEE 802.11的信标和探测机制来确保连接的客户端不会为检测断开的客户端支付不必要的开销。 还描述了通过协同收集来自相邻设备的信息并将该信息与数据库进行比较来检测和定位流氓设备的方法。

    Using a connected wireless computer as a conduit for a disconnected wireless computer
    94.
    发明申请
    Using a connected wireless computer as a conduit for a disconnected wireless computer 有权
    使用连接的无线计算机作为断开连接的无线计算机的导管

    公开(公告)号：US20060077946A1

    公开(公告)日：2006-04-13

    申请号：US11047190

    申请日：2005-01-31

    申请人： Atul Adya ,  Paramvir Bahl ,  Ranveer Chandra

    发明人： Atul Adya ,  Paramvir Bahl ,  Ranveer Chandra

    IPC分类号： H04J3/24

    CPC分类号： H04W24/04 ,  H04W12/12 ,  H04W24/08 ,  H04W84/18 ,  H04W88/06

    摘要： Systems and methods are described for using client conduits to enable bootstrapping and fault diagnosis of disconnected wireless clients. Client conduits are used to enable disconnected clients to diagnose their problems with the help of nearby clients. This technique may take advantage of the beaconing and probing mechanisms of IEEE 802.11 to ensure that connected clients do not pay unnecessary overheads for detecting disconnected clients. Methods are also described for detecting rogue devices disguising as disconnected clients.

    摘要翻译： 描述了使用客户端管道来实现断开连接的无线客户端的自举和故障诊断的系统和方法。 客户端管道用于使不连接的客户端能够在附近客户的帮助下诊断他们的问题。 这种技术可以利用IEEE 802.11的信标和探测机制来确保连接的客户端不会为检测断开的客户端支付不必要的开销。 还描述了用于检测伪装成断开的客户端的流氓设备的方法。

    Slotted seeded channel hopping for capacity improvement in wireless networks
    95.
    发明申请
    Slotted seeded channel hopping for capacity improvement in wireless networks 有权
    用于无线网络容量改进的开槽播种信道跳频

    公开(公告)号：US20050063328A1

    公开(公告)日：2005-03-24

    申请号：US10947838

    申请日：2004-09-23

    申请人： John Dunagan ,  Paramvir Bahl ,  Ranveer Chandra

    发明人： John Dunagan ,  Paramvir Bahl ,  Ranveer Chandra

    IPC分类号： H04B7/212 ,  H04J3/06 ,  H04W8/22 ,  H04W8/24 ,  H04W36/14 ,  H04W48/18 ,  H04W88/06

    CPC分类号： H04W8/245 ,  H04B1/713 ,  H04W8/22 ,  H04W48/18 ,  H04W88/06

    摘要： A system and method that increases the capacity of a wireless network using frequency diversity. A user switches between channels of a network using a single network interface card in such a manner that nodes desiring to communicate overlap while disjoint communications mostly do not overlap. A driver is inserted into a device's networking stack and controls the network interface card using a plurality of virtual wireless network adapters. Packets for a recipient are queued when the recipient is not accessible on the node's channel. In one embodiment where multiple nodes are switching in and out of channel, the method changes part of a nodes channel hopping schedule to ensure concurrent connectivity in a channel for at least a brief time period such that packets can be received/transmitted with desired nodes.

    摘要翻译： 一种使用频率分集增加无线网络容量的系统和方法。 用户使用单个网络接口卡在网络的信道之间切换，使得期望通信的节点重叠而不相交通信大部分不重叠。 将驱动程序插入设备的网络堆栈中，并使用多个虚拟无线网络适配器来控制网络接口卡。 当收件人在节点的频道上无法访问时，收件人的数据包将排队。 在多个节点切换进出信道的一个实施例中，该方法改变了节点信道跳频调度的一部分，以确保信道中的并发连接至少一个短时间段，使得可以用期望的节点接收/发送分组。

    Coexistence of white space devices and wireless narrowband devices
    97.
    发明授权
    Coexistence of white space devices and wireless narrowband devices 有权
    白色空间设备和无线窄带设备的共存

    公开(公告)号：US09332439B2

    公开(公告)日：2016-05-03

    申请号：US12962676

    申请日：2010-12-08

    申请人： Ranveer Chandra ,  Thomas Moscibroda ,  George Nychis ,  Ivan Tashev ,  Paramvir Bahl

    发明人： Ranveer Chandra ,  Thomas Moscibroda ,  George Nychis ,  Ivan Tashev ,  Paramvir Bahl

    IPC分类号： H04B1/04 ,  H04W16/14 ,  H04W52/50

    CPC分类号： H04W16/14 ,  H04R2410/00 ,  H04R2420/07 ,  H04W52/50

    摘要： Architecture that enables wireless narrowband devices (e.g., wireless microphones) and white space devices to efficiently coexist on the same telecommunications channels, while not interfering with the usability of the wireless narrowband device. The architecture provides interference detection, strobe generation and detection and, power ramping and suppression (interference-free coexistence with spectrum efficiency). The architecture provides the ability of the white space device to learn about the presence of the microphone. This can be accomplished i using a geolocation database, reactively via a strober device, and/or proactively via the strober device. The strober device can be positioned close to the microphone receiver and signals the presence of a microphone to white space devices on demand. The strober device takes into consideration the microphone's characteristics as well as the relative signal strength from the microphone transmitter versus the white space device, in order to enable maximum use of the available white space spectrum.

    摘要翻译： 能够使无线窄带设备（例如，无线麦克风）和空白设备在相同的电信信道上有效共存的架构，同时不干扰无线窄带设备的可用性。 该架构提供干扰检测，选通产生和检测以及功率斜坡抑制（与频谱效率无干扰共存）。 该架构提供了白空间设备了解麦克风的存在的能力。 这可以通过使用地理位置数据库，通过选通设备反应地和/或主动地通过选通设备来实现。 选通设备可以靠近麦克风接收器定位，并根据需要将麦克风存在于空白设备。 选通器件考虑到麦克风的特性以及麦克风发射器与白色空间器件的相对信号强度，以便最大限度地利用可用的空白光谱。

    Spectrum assignment for networks over white spaces and other portions of the spectrum
    100.
    发明授权
    Spectrum assignment for networks over white spaces and other portions of the spectrum 有权
    在白色空间和频谱的其他部分的网络的频谱分配

    公开(公告)号：US08811903B2

    公开(公告)日：2014-08-19

    申请号：US12473963

    申请日：2009-05-28

    申请人： Ranveer Chandra ,  Thomas Moscibroda ,  Rohan N. Murty ,  Paramvir Bahl

    发明人： Ranveer Chandra ,  Thomas Moscibroda ,  Rohan N. Murty ,  Paramvir Bahl

    IPC分类号： H04B15/00

    CPC分类号： H04W72/02 ,  H04W16/14 ,  H04W24/08 ,  H04W72/1226

    摘要： Functionality is described by selecting a channel in an environment in which non-privileged entities have subordinate access rights to spectrum compared to privileged entities. The functionality operates by identifying spectrum that is available to all nodes involved in communication (where the nodes are associated with non-privileged entities). The functionality then generates a suitability assessment for each candidate channel within the available spectrum. The functionality selects a channel having the most desirable suitability assessment. The functionality can form a suitability assessment for a candidate channel of arbitrary width, e.g., by combining suitability assessments associated with constituent spectrum units within the candidate channel.

    摘要翻译： 通过在非特权实体具有与特权实体相比具有次要访问权限的环境中选择一个通道来描述功能。 该功能通过识别对于通信中涉及的所有节点（其中节点与非特权实体相关联）可用的频谱进行识别。 然后，该功能为可用频谱内的每个候选信道生成适合性评估。 功能选择具有最理想的适用性评估的通道。 功能可以形成对任意宽度的候选信道的适用性评估，例如通过组合与候选信道内的组成频谱单元相关联的适用性评估。