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1. 发明授权

US08699424B2 Adapting channel width for improving the performance of wireless networks 有权
标题翻译：适应通道宽度，提高无线网络的性能
公开(公告)号：US08699424B2
公开(公告)日：2014-04-15
申请号：US12163187
申请日：2008-06-27
申请人： Ranveer Chandra , Ratul Mahajan , Thomas Moscibroda , Paramvir Bahl , Ramya Raghavendra
发明人： Ranveer Chandra , Ratul Mahajan , Thomas Moscibroda , Paramvir Bahl , Ramya Raghavendra
IPC分类号： H04W4/00 , H04J3/06 , H04J3/16
CPC分类号： H04W28/18 , H04W24/02 , H04W28/20
摘要： The subject invention relates to a system and/or methodology that provide improved wireless networking performance by dynamically adapting the channel width. A dynamic adaptation component adjust the channel width based on at least one characteristic of a wireless network, the characteristics can include but are not limited to range, power consumption, throughput, signal to noise ratio (SNR), resilience to delay spread, data rate, and capacity. Additionally, an optimization component can determine an optimum channel width.
摘要翻译：本发明涉及通过动态调整信道宽度来提供改进的无线网络性能的系统和/或方法。动态适配组件基于无线网络的至少一个特性来调整信道宽度，特征可以包括但不限于范围，功耗，吞吐量，信噪比（SNR），对延迟扩展的恢复能力，数据速率和容量。另外，优化组件可以确定最佳通道宽度。

2. 发明申请

US20090323600A1 ADAPTING CHANNEL WIDTH FOR IMPROVING THE PERFORMANCE OF WIRELESS NETWORKS 有权
标题翻译：适应无线网络性能的渠道宽度
公开(公告)号：US20090323600A1
公开(公告)日：2009-12-31
申请号：US12163187
申请日：2008-06-27
申请人： Ranveer Chandra , Ratul Mahajan , Thomas Moscibroda , Paramvir Bahl , Ramya Raghavendra
发明人： Ranveer Chandra , Ratul Mahajan , Thomas Moscibroda , Paramvir Bahl , Ramya Raghavendra
IPC分类号： H04W4/00 , H04J3/16
CPC分类号： H04W28/18 , H04W24/02 , H04W28/20
摘要： The subject invention relates to a system and/or methodology that provide improved wireless networking performance by dynamically adapting the channel width. A dynamic adaptation component adjust the channel width based on at least one characteristic of a wireless network, the characteristics can include but are not limited to range, power consumption, throughput, signal to noise ratio (SNR), resilience to delay spread, data rate, and capacity. Additionally, an optimization component can determine an optimum channel width.
摘要翻译：本发明涉及通过动态调整信道宽度来提供改进的无线网络性能的系统和/或方法。动态适配组件基于无线网络的至少一个特性来调整信道宽度，特征可以包括但不限于范围，功耗，吞吐量，信噪比（SNR），对延迟扩展的恢复能力，数据速率和容量。另外，优化组件可以确定最佳通道宽度。

3. 发明授权

US09727441B2 Generating dependency graphs for analyzing program behavior 有权
公开(公告)号：US09727441B2
公开(公告)日：2017-08-08
申请号：US13208370
申请日：2011-08-12
申请人： Sharad Agarwal , Ratul Mahajan , Alice X. Zheng , Paramvir Bahl
发明人： Sharad Agarwal , Ratul Mahajan , Alice X. Zheng , Paramvir Bahl
IPC分类号： G06F11/07 , G06F11/36 , G06F11/22
CPC分类号： G06F11/3612 , G06F11/0709 , G06F11/079 , G06F11/2257 , G06F11/3604
摘要： An analysis management system (AMS) is described that analyzes the in-field behavior of a program resource installed on a collection of computing devices, such as mobile telephone devices or the like. In operation, the AMS can instruct different devices to collect data regarding different observation points associated with the program resource, thus spreading the reporting load among the devices. Based on the data that is collected, the AMS can update a dependency graph that describes dependencies among the observation points associated with the program resource. The AMS can then generate new directives based on the updated dependency graph. The AMS can also use the dependency graph and the collected data to infer information regarding observation points that is not directly supplied by the collected data.

4. 发明申请

US20130042154A1 Adaptive and Distributed Approach to Analyzing Program Behavior 有权
标题翻译：自适应和分布式方法来分析程序行为
公开(公告)号：US20130042154A1
公开(公告)日：2013-02-14
申请号：US13208370
申请日：2011-08-12
申请人： Sharad Agarwal , Ratul Mahajan , Alice X. Zheng , Paramvir Bahl
发明人： Sharad Agarwal , Ratul Mahajan , Alice X. Zheng , Paramvir Bahl
IPC分类号： G06F11/36
CPC分类号： G06F11/3612 , G06F11/0709 , G06F11/079 , G06F11/2257 , G06F11/3604
摘要： An analysis management system (AMS) is described that analyzes the in-field behavior of a program resource installed on a collection of computing devices, such as mobile telephone devices or the like. In operation, the AMS can instruct different devices to collect data regarding different observation points associated with the program resource, thus spreading the reporting load among the devices. Based on the data that is collected, the AMS can update a dependency graph that describes dependencies among the observation points associated with the program resource. The AMS can then generate new directives based on the updated dependency graph. The AMS can also use the dependency graph and the collected data to infer information regarding observation points that is not directly supplied by the collected data.
摘要翻译：描述了分析管理系统（AMS），其分析安装在诸如移动电话设备等的计算设备的集合上的程序资源的现场行为。在操作中，AMS可以指示不同的设备收集与节目资源相关的不同观测点的数据，从而在设备之间传播报告负载。基于收集的数据，AMS可以更新描述与程序资源相关的观测点之间的依赖关系的依赖关系图。然后，AMS可以基于更新的依赖关系图生成新的指令。 AMS还可以使用依赖图和收集的数据来推断关于由收集的数据不直接提供的观测点的信息。

5. 发明授权

US08719847B2 Management and marketplace for distributed home devices 有权
标题翻译：分布式家庭设备的管理和市场
公开(公告)号：US08719847B2
公开(公告)日：2014-05-06
申请号：US12891299
申请日：2010-09-27
申请人： Sharad Agarwal , Paramvir Bahl , Alice Jane Bernheim Brush , Colin Kimm Dixon , Bongshin Lee , Ratul Mahajan , Stefan Saroiu
发明人： Sharad Agarwal , Paramvir Bahl , Alice Jane Bernheim Brush , Colin Kimm Dixon , Bongshin Lee , Ratul Mahajan , Stefan Saroiu
IPC分类号： G06F3/00
CPC分类号： H04L12/282 , H04L12/2814 , H04L12/2821
摘要： A home device management technique is described that allows a user to manage a network of distributed home devices. Special application modules, driver modules, and service exchange ports are employed. Each application modules implements some functionality in the home, preferably using one or more devices in the home distributed system. Each driver module provides the logic for operating one or multiple distributed home devices and is capable of receiving commands from application modules and sending them to devices, detecting events for an associated type of home device, translating the detected event into a format usable by the application modules and notifying the application modules of the events. Events are communicated between the application modules and the driver modules by using one or more service exchange ports. Access control policies are employed to control access to the home devices. The application and driver modules can be obtained over a network from a home marketplace that can also determine their compatibility and interoperability with the home devices.
摘要翻译：描述了允许用户管理分布式家庭设备的网络的家庭设备管理技术。采用特殊应用模块，驱动模块和业务交换端口。每个应用模块在家庭中实现一些功能，优选地在家庭分布式系统中使用一个或多个设备。每个驱动器模块提供用于操作一个或多个分布式家用设备的逻辑，并且能够接收来自应用模块的命令并将其发送到设备，检测相关类型的家庭设备的事件，将检测到的事件转换为应用程序可使用的格式模块并通知应用模块的事件。通过使用一个或多个服务交换端口在应用模块和驱动器模块之间传送事件。采用访问控制策略来控制对家用设备的访问。应用程序和驱动程序模块可以通过家庭市场的网络获得，还可以确定其与家庭设备的兼容性和互操作性。

6. 发明申请

US20090088089A1 CONTROL CHANNEL NEGOTIATED INTERMITTENT WIRELESS COMMUNICATION 有权
标题翻译：控制通道协调间接无线通信
公开(公告)号：US20090088089A1
公开(公告)日：2009-04-02
申请号：US11866092
申请日：2007-10-02
申请人： Ranveer Chandra , Christos Gkantsidis , Ratul Mahajan , Antony Ian Taylor Rowstron , Alastair Wolman , Yongqiang Xiong
发明人： Ranveer Chandra , Christos Gkantsidis , Ratul Mahajan , Antony Ian Taylor Rowstron , Alastair Wolman , Yongqiang Xiong
IPC分类号： H04B7/02
CPC分类号： H04B7/02 , H04B7/04 , H04B7/12 , H04W28/18 , H04W64/006
摘要： A dual mode communication device utilizes a control channel to exploit diversity, history, and context in advance of establishing a broadband data exchange session on a broadband but shorter range wireless data channel, maximizing productive use of such a session. Appropriate diversity for the negotiated session further enhance data transfer, including path diversity, radio technology diversity (e.g., WiMax, Wi-Fi, ultra wideband, Bluetooth), antenna diversity (e.g., MIMO), modulation diversity (e.g., rate selection for 802.11, or symbol length selection to combat multi-path fading), and frequency diversity (e.g., 2.4 GHz versus 5 GHz). Historical information about channel characteristics optimize the selection of channel parameters with respect to the diversity choices. In addition, context information such as location and speed can be used to categorize the historical information that is collected to further optimize channel parameters.
摘要翻译：提前在宽带但较短范围的无线数据信道上建立宽带数据交换会话，双模式通信设备利用控制信道来利用分集，历史和上下文，从而最大化这种会话的生产性使用。协商会话的适当分集进一步增强数据传输，包括路径分集，无线电技术分集（例如WiMax，Wi-Fi，超宽带，蓝牙），天线分集（例如，MIMO），调制分集（例如，802.11的速率选择，或符号长度选择以对抗多径衰落）和频率分集（例如，2.4GHz与5GHz）。关于信道特征的历史信息优化了对于多样性选择的信道参数的选择。此外，可以使用位置和速度等上下文信息对收集的历史信息进行分类，以进一步优化信道参数。

7. 发明申请

US20120079507A1 MANAGEMENT AND MARKETPLACE FOR DISTRIBUTED HOME DEVICES 有权
标题翻译：分销家庭设备的管理和市场
公开(公告)号：US20120079507A1
公开(公告)日：2012-03-29
申请号：US12891299
申请日：2010-09-27
申请人： Sharad Agarwal , Paramvir Bahl , Alice Jane Bernheim Brush , Colin Kimm Dixon , Bongshin Lee , Ratul Mahajan , Stefan Saroiu
发明人： Sharad Agarwal , Paramvir Bahl , Alice Jane Bernheim Brush , Colin Kimm Dixon , Bongshin Lee , Ratul Mahajan , Stefan Saroiu
IPC分类号： G06F9/46
CPC分类号： H04L12/282 , H04L12/2814 , H04L12/2821
摘要： A home device management technique is described that allows a user to manage a network of distributed home devices. Special application modules, driver modules, and service exchange ports are employed. Each application modules implements some functionality in the home, preferably using one or more devices in the home distributed system. Each driver module provides the logic for operating one or multiple distributed home devices and is capable of receiving commands from application modules and sending them to devices, detecting events for an associated type of home device, translating the detected event into a format usable by the application modules and notifying the application modules of the events. Events are communicated between the application modules and the driver modules by using one or more service exchange ports. Access control policies are employed to control access to the home devices. The application and driver modules can be obtained over a network from a home marketplace that can also determine their compatibility and interoperability with the home devices.
摘要翻译：描述了允许用户管理分布式家庭设备的网络的家庭设备管理技术。采用特殊应用模块，驱动模块和业务交换端口。每个应用模块在家庭中实现一些功能，优选地在家庭分布式系统中使用一个或多个设备。每个驱动器模块提供用于操作一个或多个分布式家用设备的逻辑，并且能够接收来自应用模块的命令并将其发送到设备，检测相关类型的家庭设备的事件，将检测到的事件转换为应用程序可使用的格式模块并通知应用模块的事件。通过使用一个或多个服务交换端口在应用模块和驱动器模块之间传送事件。采用访问控制策略来控制对家用设备的访问。应用程序和驱动程序模块可以通过家庭市场的网络获得，还可以确定其与家庭设备的兼容性和互操作性。

8. 发明授权

US08184656B2 Control channel negotiated intermittent wireless communication 有权
标题翻译：控制通道协商间歇性无线通信
公开(公告)号：US08184656B2
公开(公告)日：2012-05-22
申请号：US11866092
申请日：2007-10-02
申请人： Ranveer Chandra , Christos Gkantsidis , Ratul Mahajan , Antony Ian Taylor Rowstron , Alastair Wolman , Yongqiang Xiong
发明人： Ranveer Chandra , Christos Gkantsidis , Ratul Mahajan , Antony Ian Taylor Rowstron , Alastair Wolman , Yongqiang Xiong
IPC分类号： H04L12/413
CPC分类号： H04B7/02 , H04B7/04 , H04B7/12 , H04W28/18 , H04W64/006
摘要： A dual mode communication device utilizes a control channel to exploit diversity, history, and context in advance of establishing a broadband data exchange session on a broadband but shorter range wireless data channel, maximizing productive use of such a session. Appropriate diversity for the negotiated session further enhance data transfer, including path diversity, radio technology diversity (e.g., WiMax, Wi-Fi, ultra wideband, Bluetooth), antenna diversity (e.g., MIMO), modulation diversity (e.g., rate selection for 802.11, or symbol length selection to combat multi-path fading), and frequency diversity (e.g., 2.4 GHz versus 5 GHz). Historical information about channel characteristics optimize the selection of channel parameters with respect to the diversity choices. In addition, context information such as location and speed can be used to categorize the historical information that is collected to further optimize channel parameters.
摘要翻译：提前在宽带但较短范围的无线数据信道上建立宽带数据交换会话，双模式通信设备利用控制信道来利用分集，历史和上下文，从而最大化这种会话的生产性使用。协商会话的适当分集进一步增强数据传输，包括路径分集，无线电技术分集（例如WiMax，Wi-Fi，超宽带，蓝牙），天线分集（例如，MIMO），调制分集（例如，802.11的速率选择，或符号长度选择以对抗多径衰落）和频率分集（例如，2.4GHz与5GHz）。关于信道特征的历史信息优化了对于多样性选择的信道参数的选择。此外，可以使用位置和速度等上下文信息对收集的历史信息进行分类，以进一步优化信道参数。

9. 发明授权

US08457546B2 Interactive WiFi connectivity for moving vehicles 有权
标题翻译：用于移动车辆的互动WiFi连接
公开(公告)号：US08457546B2
公开(公告)日：2013-06-04
申请号：US12178410
申请日：2008-07-23
申请人： Ratul Mahajan , Aruna Balasubramanian
发明人： Ratul Mahajan , Aruna Balasubramanian
IPC分类号： H04B3/36 , H04B7/14
CPC分类号： H04W40/02 , H04W84/005
摘要： Systems and methods are provided to enable high-performance Internet access on board moving vehicles using WiFi data communication protocols. In an illustrative implementation, an exemplary wireless data communications environment comprises a ViFi module, an instruction set comprising at least one instruction set to process data for wireless communication between a cooperating component onboard a moving vehicle and other cooperating wireless components, and one or more wide-area wireless communications links. In an illustrative operation, the ViFi module can perform one or more wireless communications techniques to exploit macro-diversity and opportunistic receptions by cooperating WiFi base stations to minimize disruptions for mobile clients. The exemplary ViFi module can communicate data to and from one or more cooperating WiFI base stations such that the one or more base stations can operatively opportunistically overhear a packet, and can probabilistically relay the packet to the intended next hop.
摘要翻译：提供了系统和方法，以使得能够使用WiFi数据通信协议在移动车辆上实现高性能的因特网接入。在说明性实现中，示例性无线数据通信环境包括ViFi模块，包括至少一个指令集的指令集，用于处理移动车辆上的协作部件与其他协作无线部件之间的无线通信的数据，以及一个或多个宽 - 无线通信链路。在说明性操作中，ViFi模块可以执行一个或多个无线通信技术，以通过协作的WiFi基站来利用宏分集和机会接收，以最小化移动客户端的中断。示例性的ViFi模块可以向一个或多个合作的WiFI基站传送数据，或者从一个或多个合作的WiFI基站传送数据，使得一个或多个基站可以有选择地机会地窃听分组，并且可以概率地将分组中继到预期的下一跳。

10. 发明授权

US08339965B2 Uncovering the differences in backbone networks 有权
标题翻译：揭示骨干网络的差异
公开(公告)号：US08339965B2
公开(公告)日：2012-12-25
申请号：US11865914
申请日：2007-10-02
申请人： Ming Zhang , Ratul Mahajan , Lindsey Philip Poole , Vivek Sadananda Pai
发明人： Ming Zhang , Ratul Mahajan , Lindsey Philip Poole , Vivek Sadananda Pai
IPC分类号： H04L12/26
CPC分类号： H04L12/5692 , H04L47/70
摘要： The claimed subject matter provides systems and/or methods that discover comparative differences in performance of Internet Service Provider networks. The system can include devices, components, and/or processes that partitions measurement processes into cycles and measures at least one Internet Service Provider network every cycle, develops and distributes to interrogation nodes a list of destination Internet Protocol (IP) addresses to interrogate, and utilizes results delivered or retrieved from interrogation nodes to generate a report on the comparative performance of Internet Service Provider networks queried.
摘要翻译：所要求保护的主题提供发现互联网服务提供商网络的性能的比较差异的系统和/或方法。该系统可以包括将测量过程分为周期的设备，组件和/或过程，并且每周期至少测量一个因特网服务提供商网络，开发并向询问节点分发要查询的目的地互联网协议（IP）地址的列表，以及利用从询问节点传送或检索的结果生成关于所查询的互联网服务提供商网络的比较性能的报告。

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