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    Spectrum and medium access allocation for fairness
    1.
    发明授权
    Spectrum and medium access allocation for fairness 有权
    频谱和媒体访问分配公平

    公开(公告)号：US07778170B2

    公开(公告)日：2010-08-17

    申请号：US11939625

    申请日：2007-11-14

    申请人： Bernard D. Aboba ,  Paramvir Bahl ,  Miguel Oom Temudo de Castro ,  Gopala S. Narlanka ,  Jitendra D. Padhye ,  Bozidar Raduvic ,  Ramachandran Ramjee ,  Kun Tan

    发明人： Bernard D. Aboba ,  Paramvir Bahl ,  Miguel Oom Temudo de Castro ,  Gopala S. Narlanka ,  Jitendra D. Padhye ,  Bozidar Raduvic ,  Ramachandran Ramjee ,  Kun Tan

    IPC分类号： H04J1/16

    CPC分类号： H04W28/20 ,  H04W84/18

    摘要： Each node or link of an ad hoc network assists in the distributed allocation of a data channel to increase fairness, even in a multi-hop network, by tracking a measure of link weight for itself and sharing this information over a control channel with neighboring nodes. The metric can be provided over a dedicated control channel, added as a header to data communication on a data channel, or inferred by monitoring data traffic from the neighboring node. The link weight can be adjusted by a link quality factor based on provided or inferred metrics such as transmission rates, ratio of transmission errors, idle time, etc. For multiple flow queues at a subject node, one with a higher transmission rate can be selected for increased fairness. When a packet is received, medium access includes allocating bandwidth, including bonding multiple frequencies that are determined to be available to both nodes.

    摘要翻译： 自组织网络的每个节点或链路有助于数据信道的分布式分配，以便甚至在多跳网络中，通过跟踪自身的链路权重的度量并且通过与相邻节点的控制信道共享该信息来增加公平性 。 该度量可以通过专用控制信道提供，作为标题添加到数据信道上的数据通信，或通过监视来自相邻节点的数据业务来推断。 链路权重可以通过基于提供或推断的度量（例如传输速率，传输错误率，空闲时间等）的链路质量因子进行调整。对于主体节点处的多个流队列，可以选择具有较高传输速率的流量队列 增加公平性。 当接收到分组时，介质访问包括分配带宽，包括绑定被确定为可用于两个节点的多个频率。

    Spectrum and medium access allocation for fairness
    4.
    发明申请
    Spectrum and medium access allocation for fairness 有权
    频谱和媒体访问分配公平

    公开(公告)号：US20090122700A1

    公开(公告)日：2009-05-14

    申请号：US11939625

    申请日：2007-11-14

    申请人： Bernard D. Aboba ,  Paramvir Bahl ,  Miguel Oom Temudo de Castro ,  Gopala S. Narlanka ,  Jitendra D. Padhye ,  Bozidar Radunovic ,  Ramachandran Ramjee ,  Kun Tan

    发明人： Bernard D. Aboba ,  Paramvir Bahl ,  Miguel Oom Temudo de Castro ,  Gopala S. Narlanka ,  Jitendra D. Padhye ,  Bozidar Radunovic ,  Ramachandran Ramjee ,  Kun Tan

    IPC分类号： H04L12/407 ,  H04L12/56 ,  H04B7/00

    CPC分类号： H04W28/20 ,  H04W84/18

    摘要： Each node or link of an ad hoc network assists in the distributed allocation of a data channel to increase fairness, even in a multi-hop network, by tracking a measure of link weight for itself and sharing this information over a control channel with neighboring nodes. The metric can be provided over a dedicated control channel, added as a header to data communication on a data channel, or inferred by monitoring data traffic from the neighboring node. The link weight can be adjusted by a link quality factor based on provided or inferred metrics such as transmission rates, ratio of transmission errors, idle time, etc. For multiple flow queues at a subject node, one with a higher transmission rate can be selected for increased fairness. When a packet is received, medium access includes allocating bandwidth, including bonding multiple frequencies that are determined to be available to both nodes.

    摘要翻译： 自组织网络的每个节点或链路有助于数据信道的分布式分配，以便甚至在多跳网络中，通过跟踪自身的链路权重的度量并且通过与相邻节点的控制信道共享该信息来增加公平性 。 该度量可以通过专用控制信道提供，作为标题添加到数据信道上的数据通信，或通过监视来自相邻节点的数据业务来推断。 链路权重可以通过基于提供或推断的度量（例如传输速率，传输错误率，空闲时间等）的链路质量因子进行调整。对于主体节点处的多个流队列，可以选择具有较高传输速率的流量队列 增加公平性。 当接收到分组时，介质访问包括分配带宽，包括绑定被确定为可用于两个节点的多个频率。

    DETECTION OF ROGUE WIRELESS DEVICES FROM DYNAMIC HOST CONTROL PROTOCOL REQUESTS
    5.
    发明申请
    DETECTION OF ROGUE WIRELESS DEVICES FROM DYNAMIC HOST CONTROL PROTOCOL REQUESTS 审中-公开
    从动态主机控制协议请求中检测无线设备

    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。

    Power efficient channel scheduling in a wireless network
    6.
    发明授权
    Power efficient channel scheduling in a wireless network 有权

    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.

    Energy-aware communications for a multi-radio system
    7.
    发明授权
    Energy-aware communications for a multi-radio system 失效
    用于多无线电系统的能量感知通信

    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。

    Flyways in Data Centers
    8.
    发明申请
    Flyways in Data Centers 有权
    数据中心的飞行路线

    公开(公告)号：US20110087799A1

    公开(公告)日：2011-04-14

    申请号：US12723697

    申请日：2010-03-15

    申请人： Jitendra D. Padhye ,  Srikanth Kandula ,  Paramvir Bahl

    发明人： Jitendra D. Padhye ,  Srikanth Kandula ,  Paramvir Bahl

    IPC分类号： G06F15/16 ,  H04L12/26 ,  H04B7/00 ,  H04J14/00 ,  H04B10/00

    CPC分类号： H05K7/1498 ,  H04L12/6418 ,  H04L41/0896

    摘要： Described is a technology by which additional network communications capacity is provided to an oversubscribed base network where needed, through the use of dynamically provisioned communications links referred to as flyways. A controller detects a need for additional network communications capacity between two network machines, e.g., between two racks of servers with top-of-rack switches. The controller configures flyway mechanisms (e.g., one per rack) to carry at least some of the network traffic between the machines of the racks and thereby provide the additional network communications capacity. The flyway mechanisms may be based on any wireless or wired technologies, including 60 GHz technology, optical links, 802.11n or wired commodity switches.

    摘要翻译： 描述了一种技术，其中通过使用被称为飞行路线的动态配置的通信链路，在需要时向额外的基础网络提供附加的网络通信能力。 控制器检测在两个网络机器之间的额外的网络通信容量的需要，例如在具有顶部架子交换机的两个服务器机架之间。 控制器配置飞行机构（例如，每个机架一个），以在机架的机器之间携带至少一些网络业务，从而提供额外的网络通信能力。 飞越机制可以基于任何无线或有线技术，包括60GHz技术，光链路，802.11n或有线商品交换机。

    Separating Control and Data in Wireless Networks
    9.
    发明申请
    Separating Control and Data in Wireless Networks 有权
    分离无线网络中的控制和数据

    公开(公告)号：US20090103506A1

    公开(公告)日：2009-04-23

    申请号：US12345468

    申请日：2008-12-29

    申请人： Paramvir Bahl ,  Pradeep Kyasanur ,  Jitendra D. Padhye

    发明人： Paramvir Bahl ,  Pradeep Kyasanur ,  Jitendra D. Padhye

    IPC分类号： H04W8/00

    CPC分类号： H04W72/0406

    摘要： Wireless communication techniques are described in which control and data are separated. In an implementation, a method is described which includes sending data packets on a first wireless channel and sending control data relating to the data packets on a second wireless channel having a data rate that is lower than a data rate of the first wireless channel.

    摘要翻译： 描述了分离控制和数据的无线通信技术。 在实现中，描述了一种方法，其包括在第一无线信道上发送数据分组并且在具有低于第一无线信道的数据速率的数据速率的第二无线信道上发送与数据分组相关的控制数据。

    EFFICIENT AND RELIABLE MULTICAST OVER A Wi-Fi NETWORK
    10.
    发明申请
    EFFICIENT AND RELIABLE MULTICAST OVER A Wi-Fi NETWORK 有权
    Wi-Fi网络的高效和可靠的多媒体

    公开(公告)号：US20110211517A1

    公开(公告)日：2011-09-01

    申请号：US12714360

    申请日：2010-02-26

    申请人： Thomas Moscibroda ,  Vishnu Navda ,  Ramachandran Ramjee ,  Sandeep P. Karanth ,  Lenin Ravindranath Sivalingam ,  Jitendra D. Padhye ,  Ranveer Chandra

    发明人： Thomas Moscibroda ,  Vishnu Navda ,  Ramachandran Ramjee ,  Sandeep P. Karanth ,  Lenin Ravindranath Sivalingam ,  Jitendra D. Padhye ,  Ranveer Chandra

    IPC分类号： H04H20/71 ,  H03M13/05 ,  G06F11/10 ,  H04W8/00

    CPC分类号： H04H20/63 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/16 ,  H04L1/1854 ,  H04L2001/0093 ,  H04W8/186 ,  H04W48/20 ,  H04W76/40

    摘要： A “Wi-Fi Multicaster” provides a practical and efficient Wi-Fi multicast system for environments having potentially large numbers of Wi-Fi clients. Significantly, the Wi-Fi Multicaster does not require any changes to the 802.11 protocol, or to the underlying Wi-Fi infrastructure. In various embodiments, the Wi-Fi Multicaster uses pseudo-broadcast, and augments it with destination control, association control and optional proactive FEC (forward error correction) to improve multicast performance. More specifically, the Wi-Fi Multicaster system converts multicast packets to targeted unicast transmissions. To minimize the amount of airtime consumed, the Wi-Fi Multicaster uses destination control in combination with various algorithms for association control. Further, in various embodiments, the Wi-Fi Multicaster includes an adaptive, proactive FEC scheme to reduce overall packet losses. Finally, to overcome the challenges posed by encryption protocols such as 802.1x, the Wi-Fi Multicaster uses a “virtual multicast interface” that allows clients to “share” a common key for each multicast.

    摘要翻译： “Wi-Fi Multicaster”为具有潜在大量Wi-Fi客户端的环境提供了实用且高效的Wi-Fi组播系统。 重要的是，Wi-Fi Multicaster不需要对802.11协议或底层Wi-Fi基础设施进行任何更改。 在各种实施例中，Wi-Fi Multicaster使用伪广播，并且将其与目的地控制，关联控制和可选的主动FEC（前向纠错）相加以提高多播性能。 更具体地说，Wi-Fi Multicaster系统将多播分组转换为目标单播传输。 为了最大限度地减少消耗的通话时间，Wi-Fi Multicaster将目的地控制与各种算法结合使用，进行关联控制。 此外，在各种实施例中，Wi-Fi多播卡器包括自适应主动FEC方案以减少总体分组丢失。 最后，为了克服802.1x等加密协议带来的挑战，Wi-Fi Multicaster使用“虚拟多播接口”，允许客户端“共享”每个组播的公共密钥。