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    Dynamic Time-Spectrum Block Allocation for Cognitive Radio Networks
    101.
    发明申请
    Dynamic Time-Spectrum Block Allocation for Cognitive Radio Networks 有权
    认知无线电网络的动态时频块分配

    公开(公告)号：US20090196180A1

    公开(公告)日：2009-08-06

    申请号：US12061577

    申请日：2008-04-02

    申请人： Paramvir Bahl ,  Ranveer Chandra ,  Thomas Moscibroda ,  Gopala Sri Hari Narlanka ,  Yunnan Wu ,  Yuan Yuan

    发明人： Paramvir Bahl ,  Ranveer Chandra ,  Thomas Moscibroda ,  Gopala Sri Hari Narlanka ,  Yunnan Wu ,  Yuan Yuan

    IPC分类号： H04L12/26 ,  H04W4/00 ,  H04J1/16

    CPC分类号： H04W72/0446 ,  H04L5/0023 ,  H04L5/0032 ,  H04L5/0039 ,  H04L5/0066 ,  H04L5/0094 ,  H04W16/14

    摘要： Dynamic time-spectrum block allocation for cognitive radio networks is described. In one implementation, without need for a central controller, peer wireless nodes collaboratively sense local utilization of a communication spectrum and collaboratively share white spaces for communication links between the nodes. Sharing local views of the spectrum utilization with each other allows the nodes to dynamically allocate non-overlapping time-frequency blocks to the communication links between the nodes for efficiently utilizing the white spaces. The blocks are sized to optimally pack the available white spaces. The nodes regularly readjust the bandwidth and other parameters of all reserved blocks in response to demand, so that packing of the blocks in available white spaces maintains a fair distribution of the overall bandwidth of the white spaces among active communication links, minimizes finishing time of all communications, reduces contention overhead among the nodes contending for the white spaces, and maintains non-overlapping blocks.

    摘要翻译： 描述了认知无线电网络的动态时频块分配。 在一个实现中，不需要中央控制器，对等无线节点协同地感知通信频谱的本地利用，并且协作地共享用于节点之间的通信链路的空白空间。 共享频谱利用率的局部视图允许节点动态地将不重叠的时间频率块分配给节点之间的通信链路，以有效地利用白色空间。 这些块的大小可以最佳地打包可用的空白空间。 节点响应于需求定期重新调整所有保留块的带宽和其他参数，使得可用空白块中的块的打包保持主动通信链路之间白色空间的总带宽的公平分配，最小化所有的完成时间 通信，减少竞争白空间的节点之间的争用开销，并维护不重叠的块。

    Low Power Operation of Networked Devices
    102.
    发明申请
    Low Power Operation of Networked Devices 有权
    网络设备的低功耗操作

    公开(公告)号：US20090135751A1

    公开(公告)日：2009-05-28

    申请号：US11945104

    申请日：2007-11-26

    申请人： Stephen E. Hodges ,  Yuvraj Agarwal ,  James W. Scott ,  Ranveer Chandra ,  Paramvir Bahl

    发明人： Stephen E. Hodges ,  Yuvraj Agarwal ,  James W. Scott ,  Ranveer Chandra ,  Paramvir Bahl

    IPC分类号： G08C17/00

    CPC分类号： G06F1/3209 ,  G06F1/3293 ,  Y02D10/122

    摘要： Methods of reducing power consumption of networked devices are described. When a main processor and associated hardware in a computing device is powered down, a processing element, with lower power consumption than the main processor, performs networking functions on behalf of the main processor. The processing element monitors events and wakes the main processor when defined criteria are satisfied. In an embodiment, these network functions may be to maintain existing network connections and/or establish new network connections and the defined criteria may relate to messages received by the device which are analyzed by the processing element running the application layer code and these criteria may be configurable by a user of the device.

    摘要翻译： 描述了降低网络设备功耗的方法。 当计算设备中的主处理器和相关联的硬件断电时，具有比主处理器低的功耗的处理元件代表主处理器执行联网功能。 当满足定义的标准时，处理元件监视事件并唤醒主处理器。 在一个实施例中，这些网络功能可以是维护现有网络连接和/或建立新的网络连接，并且所定义的标准可以涉及由运行应用层代码的处理元件分析的由设备接收的消息，并且这些标准可以是 由设备的用户配置。

    Wireless performance analysis system
    103.
    发明授权
    Wireless performance analysis system 有权
    无线性能分析系统

    公开(公告)号：US07516049B2

    公开(公告)日：2009-04-07

    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。

    Dynamic Channel-Width Allocation in Wireless Networks
    104.
    发明申请
    Dynamic Channel-Width Allocation in Wireless Networks 有权
    无线网络中的动态通道宽度分配

    公开(公告)号：US20090034457A1

    公开(公告)日：2009-02-05

    申请号：US11832624

    申请日：2007-08-01

    申请人： Paramvir Bahl ,  Ranveer Chandra ,  Thomas Moscibroda ,  Gopala Sri Hari Narlanka ,  Yunnan Wu ,  Yuan Yuan

    发明人： Paramvir Bahl ,  Ranveer Chandra ,  Thomas Moscibroda ,  Gopala Sri Hari Narlanka ,  Yunnan Wu ,  Yuan Yuan

    IPC分类号： H04Q7/00

    CPC分类号： H04W16/10 ,  H04W28/16

    摘要： Techniques for enhancing throughput capacity and/or bandwidth distribution fairness among APs in a wireless network are described. Specifically, a channel frequency profile which includes a center frequency and channel-width (i.e., channel bandwidth) is dynamically assigned to each of one or more APs in a wireless network. The assigned channel frequency profile for each AP is based, at least in part, on the current composition of the wireless network including, its topology and traffic load distribution. In this regard, each AP's channel frequency profile can be continuously or periodically changed such that the entire available frequency spectrum is effectively utilized and/or interference between APs is avoided or limited. This, in turn, enhances the throughput capacity and/or bandwidth distribution fairness of the wireless network.

    摘要翻译： 描述了用于在无线网络中的AP之间增强吞吐量容量和/或带宽分配公平性的技术。 具体地，包括中心频率和信道宽度（即，信道带宽）的信道频率分布被动态分配给无线网络中的一个或多个AP的每一个。 每个AP的分配的信道频率分布至少部分地基于无线网络的当前组成，包括其拓扑和业务负载分布。 在这方面，可以连续地或周期性地改变每个AP的信道频率分布，使得有效利用整个可用频谱和/或避免或限制AP之间的干扰。 这又增强了无线网络的吞吐能力和/或带宽分配公平性。

    Opportunistic Use of Wireless Network Stations as Repeaters
    106.
    发明申请
    Opportunistic Use of Wireless Network Stations as Repeaters 有权
    机会使用无线网络中心作为中继者

    公开(公告)号：US20070147338A1

    公开(公告)日：2007-06-28

    申请号：US11676207

    申请日：2007-02-16

    申请人： Ranveer Chandra ,  Paramvir Bahl ,  Jitendra Padhye ,  Yan Yu

    发明人： Ranveer Chandra ,  Paramvir Bahl ,  Jitendra Padhye ,  Yan Yu

    IPC分类号： H04J3/06

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

    摘要： Implementation of opportunistic use of stations in a wireless network as repeaters is described. In one implementation, a station detects the existence of rate anomaly in a wireless network. In response to the rate anomaly, the station may transform into a software repeater for certain other neighboring stations. The repeater function allows for the relaying of packets sent by these neighboring stations to the access point and vice versa. The other neighboring stations, owing to their relative proximity to the repeater station, transmit data at a higher rate to the repeater station. Thus, the removal of the slower stations reduces clogging of the access point and increases the overall data rate within the wireless network. Further, a zero-overhead network coding protocol may be implemented in conjunction with the repeater function to increase capacity of the wireless network.

    摘要翻译： 描述了在无线网络中实现机会性使用站点作为中继器。 在一个实现中，站检测无线网络中速率异常的存在。 响应于速率异常，站可以转换成某些其他邻近站的软件中继器。 中继器功能允许将由这些相邻站发送的分组中继到接入点，反之亦然。 其他相邻站由于其相对接近中继站而以更高的速率向中继站发送数据。 因此，较慢站的移除减少了接入点的堵塞并增加了无线网络内的总体数据速率。 此外，零开销网络编码协议可以结合中继器功能来实现，以增加无线网络的容量。

    Collaboratively locating disconnected clients and rogue access points in a wireless network
    107.
    发明申请
    Collaboratively locating disconnected clients and rogue access points in a wireless network 审中-公开
    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：US20070081488A1

    公开(公告)日：2007-04-12

    申请号：US11637292

    申请日：2006-12-12

    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： H04Q7/00

    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。

    Collaboratively locating disconnected clients and rogue access points in a wireless network
    108.
    发明申请
    Collaboratively locating disconnected clients and rogue access points in a wireless network 有权
    在无线网络中协作定位不连接的客户端和流氓接入点

    公开(公告)号：US20060068811A1

    公开(公告)日：2006-03-30

    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： 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。

    Dynamic destination navigation system
    109.
    发明授权
    Dynamic destination navigation system 有权
    动态目的地导航系统

    公开(公告)号：US09026367B2

    公开(公告)日：2015-05-05

    申请号：US13533998

    申请日：2012-06-27

    申请人： Tim Paek ,  Paramvir Bahl ,  Paul N. Bennett

    发明人： Tim Paek ,  Paramvir Bahl ,  Paul N. Bennett

    IPC分类号： G01C21/00 ,  G01C21/34 ,  G01C21/36 ,  G08G1/00

    CPC分类号： G01C21/3438 ,  G01C21/3415 ,  G01C21/362 ,  G01C21/3644 ,  G08G1/22 ,  H04L67/12

    摘要： The claimed subject matter provides a method for navigating to dynamic destinations. The method includes associating a leader mobile device with a follower mobile device. The method also includes displaying, on the follower mobile device, a first path from a follower vehicle to a first location of a leader vehicle. The follower vehicle is associated with the follower mobile device. The leader vehicle is associated with the leader mobile device. The method further includes displaying, on the follower mobile device, a second path from the follower vehicle to a second location of the leader vehicle.

    摘要翻译： 所要求保护的主题提供用于导航到动态目的地的方法。 该方法包括将领先的移动设备与追随者移动设备相关联。 该方法还包括在随动移动设备上显示从跟随车辆到领先车辆的第一位置的第一路径。 跟随车辆与跟随移动设备相关联。 领先车辆与领先的移动设备相关联。 该方法还包括在随动移动设备上显示从跟随车辆到引导车辆的第二位置的第二路径。

    DYNAMIC DESTINATION NAVIGATION SYSTEM
    110.
    发明申请
    DYNAMIC DESTINATION NAVIGATION SYSTEM 有权
    动态目的地导航系统

    公开(公告)号：US20140005941A1

    公开(公告)日：2014-01-02

    申请号：US13533998

    申请日：2012-06-27

    申请人： Tim Paek ,  Paramvir Bahl ,  Paul N. Bennett

    发明人： Tim Paek ,  Paramvir Bahl ,  Paul N. Bennett

    IPC分类号： G01C21/00

    CPC分类号： G01C21/3438 ,  G01C21/3415 ,  G01C21/362 ,  G01C21/3644 ,  G08G1/22 ,  H04L67/12

    摘要： The claimed subject matter provides a method for navigating to dynamic destinations. The method includes associating a leader mobile device with a follower mobile device. The method also includes displaying, on the follower mobile device, a first path from a follower vehicle to a first location of a leader vehicle. The follower vehicle is associated with the follower mobile device. The leader vehicle is associated with the leader mobile device. The method further includes displaying, on the follower mobile device, a second path from the follower vehicle to a second location of the leader vehicle.

    摘要翻译： 所要求保护的主题提供用于导航到动态目的地的方法。 该方法包括将领先的移动设备与追随者移动设备相关联。 该方法还包括在随动移动设备上显示从跟随车辆到领先车辆的第一位置的第一路径。 跟随车辆与跟随移动设备相关联。 领先车辆与领先的移动设备相关联。 该方法还包括在随动移动设备上显示从跟随车辆到引导车辆的第二位置的第二路径。