公开(公告)号：US20110231469A1

公开(公告)日：2011-09-22

申请号：US12724428

申请日：2010-03-16

申请人： Alastair Wolman ,  Stefan Saroiu ,  Ranveer Chandra ,  Paramvir Bahl ,  Aruna Balasubramanian ,  Eduardo Alberto Cuervo Laffaye

发明人： Alastair Wolman ,  Stefan Saroiu ,  Ranveer Chandra ,  Paramvir Bahl ,  Aruna Balasubramanian ,  Eduardo Alberto Cuervo Laffaye

IPC分类号： G06F15/16

CPC分类号： G06F1/3234 ,  G06F9/5094 ,  G06F2209/509 ,  H04W52/0245 ,  Y02D10/22 ,  Y02D70/00 ,  Y02D70/12 ,  Y02D70/122 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146

摘要： A method described herein includes an act of, at a mobile computing device, receiving an indication that a portion of code of a program executing on the mobile computing device is to be offloaded to a second computing device for execution on the second computing device, wherein the indication is based at least in part upon an estimated energy savings of the mobile computing device by offloading the portion of the code for execution on the second computing device. The method also includes an act of transmitting data to the second computing device that causes the second computing device to execute the portion of the code.

摘要翻译： 本文描述的方法包括在移动计算设备处接收将在移动计算设备上执行的程序的代码的一部分卸载到第二计算设备以在第二计算设备上执行的指示的动作，其中 该指示至少部分地基于通过在第二计算设备上卸载用于执行的代码的部分来估计移动计算设备的能量节省。 该方法还包括向第二计算设备发送数据的动作，该动作使第二计算设备执行代码的该部分。

公开(公告)号：US07603460B2

公开(公告)日：2009-10-13

申请号：US11047189

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： G06F15/173

CPC分类号： H04W24/08 ,  H04W88/02 ,  H04W88/08

摘要： Systems and methods are described for detecting and diagnosing performance problems in wireless communications networks. Diagnostic programs execute on a wireless device, neighboring devices, and a wireless access point to collaborate in diagnosing network problems. The neighboring devices eavesdrop on a diagnostic session between the device and the access point to determine problems at the device, the access point, and in the wireless medium. Data from the eavesdropping devices can be summarized and sent to a network administrator for further action. The diagnostic programs are described to contain a passive component for detecting problems, and an active component for running the diagnostic techniques.

摘要翻译： 描述了用于检测和诊断无线通信网络中的性能问题的系统和方法。 诊断程序在无线设备，相邻设备和无线接入点上执行以协作诊断网络问题。 相邻设备窃听设备和接入点之间的诊断会话，以确定设备，接入点和无线介质中的问题。 来自窃听设备的数据可以被汇总并发送给网络管理员进行进一步的操作。 诊断程序被描述为包含用于检测问题的被动组件，以及用于运行诊断技术的活动组件。

公开(公告)号：US20060068769A1

公开(公告)日：2006-03-30

申请号：US11047189

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： H04M3/00

CPC分类号： H04W24/08 ,  H04W88/02 ,  H04W88/08

摘要： Systems and methods are described for detecting and diagnosing performance problems in wireless communications networks. Diagnostic programs execute on a wireless device, neighboring devices, and a wireless access point to collaborate in diagnosing network problems. The neighboring devices eavesdrop on a diagnostic session between the device and the access point to determine problems at the device, the access point, and in the wireless medium. Data from the eavesdropping devices can be summarized and sent to a network administrator for further action. The diagnostic programs are described to contain a passive component for detecting problems, and an active component for running the diagnostic techniques.

公开(公告)号：US20050113128A1

公开(公告)日：2005-05-26

申请号：US11010660

申请日：2004-12-13

申请人： Paramvir Bahl ,  Atul Adya ,  Jitendra Padhey

发明人： Paramvir Bahl ,  Atul Adya ,  Jitendra Padhey

IPC分类号： H04B7/005 ,  H04H20/00 ,  H04L12/28 ,  H04W52/02 ,  H04W52/46 ,  H04W74/04 ,  H04W84/12 ,  H04W88/04 ,  H04W88/06 ,  H04Q7/20

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.

摘要翻译： 通过无线网络优化用于多个无线计算设备的信道接入调度的方法和系统提高了相对于主信道的信道接入效率。 接入点或主机包括主机收发器，用于通过低功率信道从无线计算设备接收控制信息。 在接收到控制信息时，接入点应用调度算法来调度无线计算设备的信道接入以通过主通信信道发送数据。 无线计算设备包括用于在空闲时段期间经由低功率信道接收调度信息的低功率无线电。 当接收到调度信息时，无线计算设备激活其主要信道网络接口组件以通过主要信道传送数据。 当计算设备空闲时，除了为低功率通道供电所需的电路之外，该设备被配置为关闭其所有组件的电源。 因此，在空闲和非空闲时段期间，低功率信道被维持在活动状态以用于接收调度信息，诸如访问调度。

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.

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.

公开(公告)号：US07760654B2

公开(公告)日：2010-07-20

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： H04L12/26 ,  H04W4/00 ,  H04W24/00 ,  G06F15/173

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。

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。

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。

公开(公告)号：US07142855B2

公开(公告)日：2006-11-28

申请号：US11011011

申请日：2004-12-13

申请人： Paramvir Bahl ,  Atul Adya ,  Jitendra D. Pahhye

发明人： Paramvir Bahl ,  Atul Adya ,  Jitendra D. Pahhye

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.