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    Energy-aware communications for a multi-radio system
    3.
    发明申请
    Energy-aware communications for a multi-radio system 审中-公开

    公开(公告)号：US20060293079A1

    公开(公告)日：2006-12-28

    申请号：US11511757

    申请日：2006-08-28

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

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

    IPC分类号： H04M1/00

    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.

    Neighbor location discovery with directional antennas in a mesh network
    4.
    发明申请
    Neighbor location discovery with directional antennas in a mesh network 有权
    在网状网络中使用定向天线的邻居位置发现

    公开(公告)号：US20060215624A1

    公开(公告)日：2006-09-28

    申请号：US11091641

    申请日：2005-03-28

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

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

    IPC分类号： H04L12/26 ,  H04Q7/24

    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。

    Power efficient channel scheduling in a wireless network
    5.
    发明申请
    Power efficient channel scheduling in a wireless network 审中-公开

    公开(公告)号：US20050208958A1

    公开(公告)日：2005-09-22

    申请号：US11115711

    申请日：2005-04-27

    申请人： Paramvir Bahl ,  Atul Adya ,  Jitendra Padhye

    发明人： Paramvir Bahl ,  Atul Adya ,  Jitendra Padhye

    IPC分类号： H04B7/005 ,  H04H20/00 ,  H04L12/28 ,  H04W52/02 ,  H04W52/46 ,  H04W74/04 ,  H04W84/12 ,  H04W88/04 ,  H04W88/06 ,  H04B7/00

    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.

    Power efficient channel scheduling in a wireless network
    6.
    发明申请
    Power efficient channel scheduling in a wireless network 有权

    公开(公告)号：US20050096073A1

    公开(公告)日：2005-05-05

    申请号：US11011010

    申请日：2004-12-13

    申请人： Paramvir Bahl ,  Atul Adya ,  Jitendra Padhye

    发明人： Paramvir Bahl ,  Atul Adya ,  Jitendra Padhye

    IPC分类号： H04B7/005 ,  H04H20/00 ,  H04L12/28 ,  H04W52/02 ,  H04W52/46 ,  H04W74/04 ,  H04W84/12 ,  H04W88/04 ,  H04W88/06 ,  G08B5/22

    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
    8.
    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。

    Multi-radio unification protocol
    9.
    发明授权
    Multi-radio unification protocol 有权
    多无线电统一协议

    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。

    Neighbor location discovery with directional antennas in a mesh network
    10.
    发明授权
    Neighbor location discovery with directional antennas in a mesh network 有权
    在网状网络中定位天线的邻居位置发现

    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。