公开(公告)号：US07876786B2

公开(公告)日：2011-01-25

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： H04J4/00

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。

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。

公开(公告)号：US07665126B2

公开(公告)日：2010-02-16

申请号：US10738272

申请日：2003-12-17

申请人： Daniel R. Simon ,  Paramvir Bahl ,  Helen Jiahe Wang

发明人： Daniel R. Simon ,  Paramvir Bahl ,  Helen Jiahe Wang

IPC分类号： G06F7/04 ,  G06F15/16 ,  H04L29/06 ,  G06F17/30

CPC分类号： H04L63/0823 ,  H04W12/06 ,  H04W12/12 ,  H04W40/00 ,  H04W48/16 ,  H04W76/10 ,  H04W88/14 ,  H04W88/18

摘要： In an exemplary method implementation, a method includes: designating a neighborhood administrator; receiving notification of a delinquent router from the designated neighborhood administrator; and excluding the delinquent router responsive to the notification. In an exemplary mesh router implementation, a mesh router is capable of establishing a wireless mesh network with other mesh routers, the mesh router is further capable of designating a neighborhood administrator mesh router; and the mesh router is adapted to exclude another mesh router that is associated with a particular certificate when the particular certificate has been identified as delinquent by the designated neighborhood administrator. mesh router.

摘要翻译： 在示例性方法实现中，一种方法包括：指定邻域管理员; 从指定的邻里管理员接收违规路由器的通知; 并根据通知排除违规路由器。 在示例性网状路由器实现中，网状路由器能够与其他网状路由器建立无线网状网络，网状路由器还能够指定邻域管理员网状路由器; 并且网格路由器适于在特定证书被指定的邻域管理员识别为违规时排除与特定证书相关联的另一网状路由器。 网状路由器。

公开(公告)号：US07640460B2

公开(公告)日：2009-12-29

申请号：US11680477

申请日：2007-02-28

申请人： Paramvir Bahl ,  Ranveer Chandra ,  Lun Li ,  David A. Maltz ,  Ming Zhang

发明人： Paramvir Bahl ,  Ranveer Chandra ,  Lun Li ,  David A. Maltz ,  Ming Zhang

IPC分类号： G06F11/00

CPC分类号： H04L41/0681

摘要： Exemplary methods, computer-readable media, and systems for detecting a fault by a packet trace, includes monitoring at least one packet transmitted to or received from, an computing device of an end user, between one or more computing devices implementing at least one of a service or an application on an enterprise network. The process also includes identifying whether an abnormal condition occurred on the computing device of the end user based on monitoring at least one packet transmitted to or received from, the computing device of the end user; and detecting a fault by using an algorithm based on monitoring at least one packet transmitted or received from, the computing device of the end user; wherein the fault indicates a desired course of action did not occur while the computing device of the end user uses at least one of the service or the application in the enterprise network.

摘要翻译： 用于通过分组跟踪检测故障的示例性方法，计算机可读介质和系统包括监视在一个或多个计算设备之间发送到终端用户的计算设备或从终端用户的计算设备接收的至少一个分组，其实现以下中的至少一个： 企业网络上的服务或应用程序。 该过程还包括基于监视终端用户的计算设备发送到或从其接收到的至少一个分组来识别终端用户的计算设备上是否发生异常状况; 以及通过使用基于监视从最终用户的计算设备发送或接收的至少一个分组的算法来检测故障; 其中所述故障指示在所述终端用户的计算设备使用所述企业网络中的所述服务或应用中的至少一个的情况下不发生期望的操作过程。

公开(公告)号：US07500263B2

公开(公告)日：2009-03-03

申请号：US11390592

申请日：2006-03-28

申请人： Srinivasan Venkatachary ,  Paramvir Bahl ,  Anand Balachandran

发明人： Srinivasan Venkatachary ,  Paramvir Bahl ,  Anand Balachandran

IPC分类号： G06F7/04 ,  G06K19/00 ,  H04L9/32

CPC分类号： H04L63/0428 ,  G06Q30/02 ,  H04L63/061 ,  H04L63/104

摘要： Systems and methods for providing network access, e.g. Internet access, are described. An architecture includes a host organization network through which network access is provided. The host organization network can be advantageously deployed in public areas such as airports and shopping malls. An authentication/negotiation component is provided for authenticating various users and negotiating for services with service providers on behalf of the system users. The authentication/negotiation component can include one or more specialized servers and a policy manager that contains policies that govern user access to the Internet. An authentication database is provided and authenticates various users of the system. An access module is provided through which individual client computing devices can access the Internet. In one embodiment, the access module comprises individual wireless access points that permit the client computing devices to wirelessly communicate data packets that are intended for the Internet. In one aspect, users are given a variety of choices of different service levels that they can use for accessing the Internet. The service levels can vary in such things as bandwidth allocation and security measures. The various service levels can be purchased by the users using their computing devices.

摘要翻译： 用于提供网络接入的系统和方法，例如 描述了互联网接入。 一种架构包括一个主机组织网络，通过它提供网络访问。 主机组织网络可以有利地部署在公共场所，如机场和商场。 提供用于认证各种用户并代表系统用户与服务提供商协商服务的认证/协商组件。 认证/协商组件可以包括一个或多个专用服务器和包含管理用户对因特网的访问的策略的策略管理器。 提供认证数据库并认证系统的各种用户。 提供访问模块，单个客户端计算设备可以通过该访问模块访问因特网。 在一个实施例中，访问模块包括单独的无线接入点，其允许客户端计算设备无线地传送旨在用于因特网的数据分组。 在一个方面，向用户提供可用于访问因特网的不同服务级别的各种选择。 服务水平可以在带宽分配和安全措施等方面有所不同。 各种服务级别可由用户使用其计算设备购买。

公开(公告)号：US07440754B2

公开(公告)日：2008-10-21

申请号：US10870626

申请日：2004-06-17

申请人： Pradeep Bahl ,  Paramvir Bahl

发明人： Pradeep Bahl ,  Paramvir Bahl

IPC分类号： H04Q7/20 ,  H04J1/00

CPC分类号： H04W88/06 ,  H04W28/14 ,  H04W74/06 ,  H04W84/18

摘要： A system and method for wireless network communications provides a “dual-mode” wireless device that operates concurrently as a member of two disjoint wireless networks, such as an infrastructure (“IS”) network and an ad hoc (“AH”) network. The dual-mode device has a wireless controller driver inserted in its networking stack (e.g., the stack comprising of the Network and NDIS drivers) that exposes two virtual wireless network adapters, one for the first wireless network and one for the second wireless network. Each virtual wireless network adapter has an associated queue for queuing packets in the flow for the corresponding wireless network mode. The wireless controller driver controls the switching of the network mode. In one embodiment where the two networks include an IS network and an AH network, the mode switching is triggered by poll signals transmitted by an access point of the IS network. When the mode is switched from operating in the first network to operating in the second network, the first virtual network adapter is disabled and the second virtual network adapter is enabled, and the queued packets in the queue for the second virtual network adapter are transmitted over the second wireless network.

摘要翻译： 用于无线网络通信的系统和方法提供了作为两个不相交的无线网络（诸如基础设施（IS））网络和特设（“AH”）网络的成员同时工作的“双模式”无线设备。 双模设备具有在其网络堆栈（例如，包括网络和NDIS驱动器的堆栈）中插入的无线控制器驱动器，其暴露两个虚拟无线网络适配器，一个用于第一无线网络，一个用于第二无线网络。 每个虚拟无线网络适配器具有相关联的队列，用于对于相应无线网络模式的流中的分组进行排队。 无线控制器驱动程序控制网络模式的切换。 在两个网络包括IS网络和AH网络的一个实施例中，模式切换由IS网络的接入点发送的轮询信号触发。 当模式从在第一网络中的操作切换到在第二网络中操作时，第一虚拟网络适配器被禁用并且第二虚拟网络适配器被使能，并且用于第二虚拟网络适配器的队列中的排队的分组被传送 第二个无线网络。

公开(公告)号：US20080141049A1

公开(公告)日：2008-06-12

申请号：US11073901

申请日：2005-03-07

申请人： Amer A. Hassan ,  Pradeep Bahl ,  Paramvir Bahl ,  Thomas W. Kuehnel

发明人： Amer A. Hassan ,  Pradeep Bahl ,  Paramvir Bahl ,  Thomas W. Kuehnel

IPC分类号： G06F1/32

CPC分类号： G06F1/3203 ,  G06F1/3265 ,  G09G3/2003 ,  G09G2330/021 ,  G09G2340/04 ,  G09G2340/0407 ,  G09G2340/0428 ,  Y02D10/153

摘要： A novel system and method increase battery life for portable computing devices through intelligent display management. A user interface allows a user to input threshold values and parameters such that power management actions are taken should battery power fall below the thresholds. Such actions include the reduction of size to the projected display, disabling of network activity, and management of intensive CPU processes.

摘要翻译： 一种新颖的系统和方法通过智能显示管理增加便携式计算设备的电池寿命。 用户界面允许用户输入阈值和参数，以便在电池电量低于阈值时采取电源管理动作。 此类操作包括将大小减小到预计显示，禁用网络活动以及管理强大的CPU进程。

公开(公告)号：US07363008B2

公开(公告)日：2008-04-22

申请号：US10696908

申请日：2003-10-30

申请人： Amer Hassan ,  Paramvir Bahl ,  Jean Pierre de Vries

发明人： Amer Hassan ,  Paramvir Bahl ,  Jean Pierre de Vries

IPC分类号： H04B1/00 ,  H04B15/00

CPC分类号： H04W16/14

摘要： The invention provides methods for autonomous detection and adaptation with respect to an interfering signal on a frequency channel to assist a wireless device on a wireless network in choosing an appropriate frequency channel. According to embodiments, a method determines an appropriate channel by first detecting whether there is an interfering signal on a frequency channel over the wireless network, then retrieving data from the interfering signal to retrieve protocol identification information. Prior to determining whether to transmit over the frequency channel, the method calls for determining whether the identified protocol of the interfering signal is a predetermined protocol.

摘要翻译： 本发明提供了用于针对频率信道上的干扰信号进行自主检测和自适应的方法，以帮助无线网络上的无线设备选择合适的频率信道。 根据实施例，一种方法通过首先检测在无线网络上的频率信道上是否存在干扰信号，然后从干扰信号中检索数据以检索协议标识信息来确定适当的信道。 在确定是否通过频率信道进行传输之前，该方法要求确定所识别的干扰信号的协议是否是预定协议。

公开(公告)号：US07313237B2

公开(公告)日：2007-12-25

申请号：US10835377

申请日：2004-04-28

申请人： Paramvir Bahl ,  Srinivasan Venkatachary ,  Anand Balachandran

发明人： Paramvir Bahl ,  Srinivasan Venkatachary ,  Anand Balachandran

IPC分类号： H04L9/28 ,  H04K1/00

CPC分类号： H04L67/16 ,  G06Q20/3674 ,  G06Q30/02 ,  H04L12/2856 ,  H04L47/70 ,  H04L47/805 ,  H04L47/824 ,  H04L47/828 ,  H04L63/0428 ,  H04L63/06 ,  H04L63/062 ,  H04L63/0815 ,  H04L63/10 ,  H04L63/104 ,  H04L63/20 ,  H04W12/04 ,  H04W12/06 ,  H04W12/08

摘要： Systems and methods for providing network access, e.g. Internet access, are described. An architecture includes a host organization network through which network access is provided. The host organization network can be advantageously deployed in public areas such as airports and shopping malls. An authentication/negotiation component is provided for authenticating various users and negotiating for services with service providers on behalf of the system users. The authentication/negotiation component can include one or more specialized servers and a policy manager that contains policies that govern user access to the Internet. An authentication database is provided and authenticates various users of the system. An access module is provided through which individual client computing devices can access the Internet. In one embodiment, the access module comprises individual wireless access points that permit the client computing devices to wirelessly communicate data packets that are intended for the Internet. In one aspect, users are given a variety of choices of different service levels that they can use for accessing the Internet. The service levels can vary in such things as bandwidth allocation and security measures. The various service levels can be purchased by the users using their computing devices.

摘要翻译： 用于提供网络接入的系统和方法，例如 描述了互联网接入。 一种架构包括一个主机组织网络，通过该主机组织网络提供网络访问。 主机组织网络可以有利地部署在公共场所，如机场和商场。 提供用于认证各种用户并代表系统用户与服务提供商协商服务的认证/协商组件。 认证/协商组件可以包括一个或多个专用服务器和包含管理用户对因特网的访问的策略的策略管理器。 提供认证数据库并认证系统的各种用户。 提供访问模块，单个客户端计算设备可以通过该访问模块访问因特网。 在一个实施例中，访问模块包括单独的无线接入点，其允许客户端计算设备无线地传送旨在用于因特网的数据分组。 在一个方面，向用户提供可用于访问因特网的不同服务级别的各种选择。 服务水平可以在带宽分配和安全措施等方面有所不同。 各种服务级别可由用户使用其计算设备购买。

公开(公告)号：US07245936B2

公开(公告)日：2007-07-17

申请号：US11010660

申请日：2004-12-13

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

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

IPC分类号： H04Q7/20 ,  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.