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    Flyway Generation in Data Centers
    124.
    发明申请
    Flyway Generation in Data Centers 审中-公开
    数据中心飞行一代

    公开(公告)号：US20120311127A1

    公开(公告)日：2012-12-06

    申请号：US13118749

    申请日：2011-05-31

    申请人： Srikanth Kandula ,  Daniel Halperin ,  Jitendra Padhye ,  Paramvir Bahl

    发明人： Srikanth Kandula ,  Daniel Halperin ,  Jitendra Padhye ,  Paramvir Bahl

    IPC分类号： G06F15/16

    CPC分类号： H04W16/28 ,  H04W84/10

    摘要： The subject disclosure is directed towards configuring and controlling wireless flyways (e.g., communication links between server racks provisioned on demand in a data center) to operate efficiently and without interfering with one another. Control and flyway selection may be based upon steered antenna directionality, channel, location in the data center, transmit power, and measured and/or predicted (estimated) network traffic. Flyways also may be used to route indirect traffic to reduce traffic on a bottleneck (e.g., wired) link. A payload may be sent over a over a wireless flyway with acknowledgment via a wired backchannel so that wireless communication is in one direction. The lack of interference and communication in one direction facilitates flyway operation without a backoff function and/or without clear channel assessment.

    摘要翻译： 主题公开涉及配置和控制无线飞行路线（例如，在数据中心中按需提供的服务器机架之间的通信链路），以有效地操作并且彼此不干扰。 控制和飞行选择可以基于导向天线方向性，信道，数据中心中的位置，发射功率以及测量和/或预测（估计的）网络业务。 飞行路线还可用于路由间接流量以减少瓶颈（例如，有线）链路上的流量。 有效载荷可以通过无线飞行通过经由有线后向信道的确认发送，使得无线通信在一个方向上。 在一个方向上缺乏干扰和通信便于没有退避功能的飞行操作和/或没有明确的信道评估。

    Dynamic channel-width allocation in wireless networks
    126.
    发明授权
    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：US08243612B2

    公开(公告)日：2012-08-14

    申请号：US11832624

    申请日：2007-08-01

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

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

    IPC分类号： H04W16/02 ,  H04W24/02 ,  H04W28/20 ,  H04B7/00

    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。

    Self-configuring wireless network location system
    127.
    发明授权
    Self-configuring wireless network location system 有权
    自配置无线网络定位系统

    公开(公告)号：US08155662B2

    公开(公告)日：2012-04-10

    申请号：US11753536

    申请日：2007-05-24

    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： H04W24/00 ,  H04W4/00

    CPC分类号： H04W24/02 ,  G01S5/02 ,  G01S5/14 ,  H04L41/0213 ,  H04L41/0806 ,  H04L41/0886 ,  H04L41/12 ,  H04W64/00 ,  H04W84/18

    摘要： Wireless adapters are installed on one or more general purpose computing devices and are connected via a 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 signals transmitted by one or more transceiver devices and records information about these signals. One or more analysis or inference engines may be deployed to obtain the recorded signal information and the air monitor locations to determine a location of the one or more wireless transceivers devices deployed in the environment.

    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。 空气监视器监视由一个或多个收发器设备发送的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以获得记录的信号信息和空中监视器位置，以确定部署在环境中的一个或多个无线收发器设备的位置。

    OPPORTUNISTIC USE OF WIRELESS NETWORK STATIONS AS REPEATERS
    128.
    发明申请
    OPPORTUNISTIC USE OF WIRELESS NETWORK STATIONS AS REPEATERS 有权
    无线网络作为替代机构的机会性使用

    公开(公告)号：US20120014313A1

    公开(公告)日：2012-01-19

    申请号：US13245314

    申请日：2011-09-26

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

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

    IPC分类号： H04B7/14

    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，站检测无线网络中的速率异常的存在。 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。

    ENABLING WHITE SPACE NETWORKS INDEPENDENT OF LOW-THRESHOLD SENSING
    129.
    发明申请
    ENABLING WHITE SPACE NETWORKS INDEPENDENT OF LOW-THRESHOLD SENSING 有权
    启用独立于低阈值感应的白色空间网络

    公开(公告)号：US20110317019A1

    公开(公告)日：2011-12-29

    申请号：US12822218

    申请日：2010-06-24

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

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

    IPC分类号： H04N17/00

    CPC分类号： H04W48/08 ,  H04L27/0006 ,  H04W16/14 ,  H04W24/00

    摘要： Described is a technology by which a remote or local geo-location service provides white space information that one or more client devices and/or base stations may use to determine which white spaces are available for use, e.g., for wireless networking. Because of the information, low-threshold sensing is not needed by the client devices and/or base stations to know which white spaces are available. The service computes the available white spaces for a given location based upon television transmitter parameters, elevation data, and information received regarding any operational wireless microphones.

    摘要翻译： 描述了一种技术，通过该技术远程或本地地理位置服务提供一个或多个客户端设备和/或基站可以用于确定哪些空格可用于例如无线网络的白空间信息。 由于该信息，客户端设备和/或基站不需要低阈值感测来知道哪些空白可用。 该服务基于电视发射机参数，高程数据和关于任何操作无线麦克风接收到的信息来计算给定位置的可用空白空间。