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1. 发明申请

US20100257281A1 Peer Connections Over Alternative Communication Mechanisms 审中-公开
标题翻译：通过替代通信机制的对等连接
公开(公告)号：US20100257281A1
公开(公告)日：2010-10-07
申请号：US12417745
申请日：2009-04-03
申请人： Parveen K. Patel , Jitendra D. Padhye , Ranveer Chandra
发明人： Parveen K. Patel , Jitendra D. Padhye , Ranveer Chandra
IPC分类号： G06F15/173
CPC分类号： G06F15/173 , H04L12/2858 , H04L12/4625
摘要： Alternate communication paths may be analyzed and selected for ongoing communications between two devices. One or both of the communicating devices may identify available communication paths and various identifiers on those paths. The identifiers may be, for example, base stations for a wireless connection, beacon signals, or other information that may be received by the device. After comparing the available communication paths to identify one or more alternative paths, the ongoing communications may be transferred to the alternative path. The initial communication path may be used to pass authentication and encryption information that may be used to establish the alternative path between the devices. The redirection of a communication stream may be performed by an interceptor inserted between the application layer and transport layer in a network stack of the communicating devices.
摘要翻译：可以分析和选择替代通信路径用于两个设备之间的正在进行的通信。一个或两个通信设备可以在这些路径上标识可用的通信路径和各种标识符。标识符可以是例如用于无线连接的基站，信标信号或可由设备接收的其他信息。在比较可用通信路径以识别一个或多个备选路径之后，正在进行的通信可以被传送到备选路径。初始通信路径可以用于传递可用于建立设备之间的替代路径的认证和加密信息。通信流的重定向可以由插入在通信设备的网络堆栈中的应用层和传输层之间的拦截器来执行。

2. 发明授权

US09001663B2 Communication transport optimized for data center environment 有权
标题翻译：针对数据中心环境优化的通信传输
公开(公告)号：US09001663B2
公开(公告)日：2015-04-07
申请号：US12714266
申请日：2010-02-26
申请人： Mohammedreza Alizadeh Attar , Murari Sridharan , Parveen K. Patel , Balaji Prabhakar , David A. Maltz , Jitendra D. Padhye , Albert G. Greenberg
发明人： Mohammedreza Alizadeh Attar , Murari Sridharan , Parveen K. Patel , Balaji Prabhakar , David A. Maltz , Jitendra D. Padhye , Albert G. Greenberg
IPC分类号： G01R31/08 , H04L12/801 , H04L12/825 , H04L12/835
CPC分类号： H04L47/34 , H04L47/10 , H04L47/115 , H04L47/19 , H04L47/263 , H04L47/30
摘要： Methods and apparatus for congestion control in computer networks achieve high burst tolerance, low latency and high throughput with shallow-buffered switches. A method for controlling congestion includes transmitting a set of data packets on a network connection from a first computing device to a second computing device, identifying each data packet in the set of data packets that experienced congestion on the network connection, sending, by the second computing device to the first computing device, a sequence of bits that represents the number of data packets in the set of data packets that were identified as having experienced congestion, and adjusting a rate of transmitting data packets on the network connection based on the sequence of bits sent to the first computing device.
摘要翻译：计算机网络拥塞控制的方法和装置通过浅缓冲交换机实现高突发容忍，低延迟和高吞吐量。一种用于控制拥塞的方法包括在网络连接上从第一计算设备向第二计算设备发送一组数据分组，识别在网络连接上经历拥塞的数据分组集合中的每个数据分组，由第二计算设备到第一计算设备，表示被识别为经历拥塞的数据分组集合中的数据分组的数量的比特序列，以及基于所述网络连接的序列来调整在网络连接上传输数据分组的速率发送到第一计算设备的位。

3. 发明申请

US20110211449A1 COMMUNICATION TRANSPORT OPTIMIZED FOR DATA CENTER ENVIRONMENT 有权
标题翻译：数据中心环境优化的通信运输
公开(公告)号：US20110211449A1
公开(公告)日：2011-09-01
申请号：US12714266
申请日：2010-02-26
申请人： Mohammedreza Alizadeh Attar , Murari Sridharan , Parveen K. Patel , Balaji Prabhakar , David A. Maltz , Jitendra D. Padhye , Albert G. Greenberg
发明人： Mohammedreza Alizadeh Attar , Murari Sridharan , Parveen K. Patel , Balaji Prabhakar , David A. Maltz , Jitendra D. Padhye , Albert G. Greenberg
IPC分类号： H04L12/56
CPC分类号： H04L47/34 , H04L47/10 , H04L47/115 , H04L47/19 , H04L47/263 , H04L47/30
摘要： Methods and apparatus for congestion control in computer networks achieve high burst tolerance, low latency and high throughput with shallow-buffered switches. A method for controlling congestion includes transmitting a set of data packets on a network connection from a first computing device to a second computing device, identifying each data packet in the set of data packets that experienced congestion on the network connection, sending, by the second computing device to the first computing device, a sequence of bits that represents the number of data packets in the set of data packets that were identified as having experienced congestion, and adjusting a rate of transmitting data packets on the network connection based on the sequence of bits sent to the first computing device.
摘要翻译：计算机网络拥塞控制的方法和装置通过浅缓冲交换机实现高突发容忍，低延迟和高吞吐量。一种用于控制拥塞的方法包括在网络连接上从第一计算设备向第二计算设备发送一组数据分组，识别在网络连接上经历拥塞的数据分组集合中的每个数据分组，由第二计算设备到第一计算设备，表示被识别为经历拥塞的数据分组集合中的数据分组的数量的比特序列，以及基于所述网络连接的序列来调整在网络连接上传输数据分组的速率发送到第一计算设备的位。

4. 发明申请

US20110271345A1 DETECTION OF ROGUE WIRELESS DEVICES FROM DYNAMIC HOST CONTROL PROTOCOL REQUESTS 审中-公开
标题翻译：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。

5. 发明申请

US20110211517A1 EFFICIENT AND RELIABLE MULTICAST OVER A Wi-Fi NETWORK 有权
标题翻译： 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。

6. 发明申请

US20070274324A1 LOCAL NETWORK CODING FOR WIRELESS NETWORKS 有权
标题翻译：无线网络的本地网络编码
公开(公告)号：US20070274324A1
公开(公告)日：2007-11-29
申请号：US11420616
申请日：2006-05-26
申请人： Yunnan Wu , Jitendra D. Padhye , Ranveer Chandra , Venkata N. Padmanabhan , Philip A. Chou , Mohamed Jawad Khaki
发明人： Yunnan Wu , Jitendra D. Padhye , Ranveer Chandra , Venkata N. Padmanabhan , Philip A. Chou , Mohamed Jawad Khaki
IPC分类号： H04L12/56
CPC分类号： H04L1/1874 , H04L1/0076 , H04L67/327 , H04W28/06 , H04W48/08 , H04W84/12
摘要： A local network coding framework and method including techniques to improve efficiency in a wireless network by reducing overhead. The local network coding method includes exchanging data availability between nodes on the wireless network by sending Bloom filters of lists of packets to neighboring nodes. Based on data availability, optimized mixing of pure packets is performed to form mixture packets for output. A separate acknowledgement buffer keeps track of the pure packets transmitted but not acknowledged. If an acknowledgement does not arrive after a certain time period, the packet is assumed to be lost and is retransmitted. An optimized packet mixing process generates mixture packets and decides which nodes to send the mixture packets. The local network coding framework and method also includes methods for representing the composition of a mixture packet and using mixing at a wireless access point to improve the performance of the wireless local area network.
摘要翻译：本地网络编码框架和方法包括通过减少开销来提高无线网络的效率的技术。本地网络编码方法包括通过向相邻节点发送分组列表的Bloom过滤器来在无线网络上的节点之间交换数据可用性。基于数据可用性，执行纯数据包的优化混合，形成混合数据包进行输出。单独的确认缓冲区跟踪发送但未确认的纯数据包。如果确认在某个时间段之后未到达，则假定该分组丢失并被重发。优化的分组混合过程产生混合分组，并决定哪些节点发送混合分组。本地网络编码框架和方法还包括用于表示混合分组的组合并在无线接入点使用混合来改善无线局域网的性能的方法。

7. 发明授权

US08270338B2 Opportunistic use of wireless network stations as repeaters 有权
标题翻译：机会性地使用无线网络中心
公开(公告)号：US08270338B2
公开(公告)日：2012-09-18
申请号：US13245314
申请日：2011-09-26
申请人： Ranveer Chandra , Paramvir Bahl , Jitendra D. Padhye , Yan Yu
发明人： Ranveer Chandra , Paramvir Bahl , Jitendra D. Padhye , Yan Yu
IPC分类号： H04B7/14 , H04B7/15 , H04B7/00 , H04W4/00
CPC分类号： H04W8/245 , H04W8/22 , H04W48/18 , H04W88/06
摘要： Implementation of opportunistic use of stations in a wireless network as repeaters is described. In one implementation, a station detects the existence of rate anomaly in a wireless network. In response to the rate anomaly, the station may transform into a software repeater for certain other neighboring stations. The repeater function allows for the relaying of packets sent by these neighboring stations to the access point and vice versa. The other neighboring stations, owing to their relative proximity to the repeater station, transmit data at a higher rate to the repeater station. Thus, the removal of the slower stations reduces clogging of the access point and increases the overall data rate within the wireless network. Further, a zero-overhead network coding protocol may be implemented in conjunction with the repeater function to increase capacity of the wireless network.
摘要翻译：描述了在无线网络中实现机会性使用站点作为中继器。在一个实现中，站检测无线网络中的速率异常的存在。响应于速率异常，站可以转换成某些其他邻近站的软件中继器。中继器功能允许将由这些相邻站发送的分组中继到接入点，反之亦然。其他相邻站由于其相对接近中继站而以更高的速率向中继站发送数据。因此，较慢站的移除减少了接入点的堵塞并增加了无线网络内的总体数据速率。此外，零开销网络编码协议可以结合中继器功能来实现，以增加无线网络的容量。

8. 发明授权

US07516049B2 Wireless performance analysis system 有权
标题翻译：无线性能分析系统
公开(公告)号：US07516049B2
公开(公告)日：2009-04-07
申请号：US11680575
申请日：2007-02-28
申请人： Brian D. Zill , Alastair Wolman , Jitendra D. Padhye , Paramvir Bahl , Ranveer Chandra
发明人： Brian D. Zill , Alastair Wolman , Jitendra D. Padhye , Paramvir Bahl , Ranveer Chandra
IPC分类号： G06F11/30
CPC分类号： H04W24/08 , H04L41/5009 , H04L43/0829 , H04L43/0894
摘要： Wireless adapters are installed on one or more general purpose computing devices and are connected via a wireless network in an enterprise environment. The adapters are densely deployed at known locations throughout the environment and are configured as air monitors. The air monitors monitor wireless signals transmitted between transceiver devices and access points and records information about these signals. One or more analysis or inference engines may be deployed to analyze the signals received from the air monitors to obtain optimum performance and connectivity information about the wireless network.
摘要翻译：无线适配器安装在一个或多个通用计算设备上，并通过企业环境中的无线网络连接。适配器密集地部署在整个环境中的已知位置，并配置为空气监视器。空中监视器监视在收发器设备和接入点之间传输的无线信号，并记录关于这些信号的信息。可以部署一个或多个分析或推理引擎来分析从空中监视器接收的信号，以获得关于无线网络的最佳性能和连接信息。

9. 发明授权

US08050212B2 Opportunistic use of wireless network stations as repeaters 有权
标题翻译：机会性地使用无线网络中心
公开(公告)号：US08050212B2
公开(公告)日：2011-11-01
申请号：US11676207
申请日：2007-02-16
申请人： Ranveer Chandra , Paramvir Bahl , Jitendra D. Padhye , Yan Yu
发明人： Ranveer Chandra , Paramvir Bahl , Jitendra D. Padhye , Yan Yu
IPC分类号： H04B7/14 , H04B3/36 , H04B1/60 , G01R31/08 , H04W24/00
CPC分类号： H04W8/245 , H04W8/22 , H04W48/18 , H04W88/06
摘要： Implementation of opportunistic use of stations in a wireless network as repeaters is described. In one implementation, a station detects the existence of rate anomaly in a wireless network. In response to the rate anomaly, the station may transform into a software repeater for certain other neighboring stations. The repeater function allows for the relaying of packets sent by these neighboring stations to the access point and vice versa. The other neighboring stations, owing to their relative proximity to the repeater station, transmit data at a higher rate to the repeater station. Thus, the removal of the slower stations reduces clogging of the access point and increases the overall data rate within the wireless network. Further, a zero-overhead network coding protocol may be implemented in conjunction with the repeater function to increase capacity of the wireless network.
摘要翻译：描述了在无线网络中实现机会性使用站点作为中继器。在一个实现中，站检测无线网络中的速率异常的存在。响应于速率异常，站可以转换成某些其他邻近站的软件中继器。中继器功能允许将由这些相邻站发送的分组中继到接入点，反之亦然。其他相邻站由于其相对接近中继站而以更高的速率向中继站发送数据。因此，较慢站的移除减少了接入点的堵塞并增加了无线网络内的总体数据速率。此外，零开销网络编码协议可以结合中继器功能来实现，以增加无线网络的容量。

10. 发明授权

US08040836B2 Local network coding for wireless networks 有权
标题翻译：无线网络的本地网络编码
公开(公告)号：US08040836B2
公开(公告)日：2011-10-18
申请号：US11420616
申请日：2006-05-26
申请人： Yunnan Wu , Jitendra D. Padhye , Ranveer Chandra , Venkata N. Padmanabhan , Philip A. Chou , Mohamed Jawad Khaki
发明人： Yunnan Wu , Jitendra D. Padhye , Ranveer Chandra , Venkata N. Padmanabhan , Philip A. Chou , Mohamed Jawad Khaki
IPC分类号： H04B7/212
CPC分类号： H04L1/1874 , H04L1/0076 , H04L67/327 , H04W28/06 , H04W48/08 , H04W84/12
摘要： A local network coding framework and method including techniques to improve efficiency in a wireless network by reducing overhead. The local network coding method includes exchanging data availability between nodes on the wireless network by sending Bloom filters of lists of packets to neighboring nodes. Based on data availability, optimized mixing of pure packets is performed to form mixture packets for output. A separate acknowledgement buffer keeps track of the pure packets transmitted but not acknowledged. If an acknowledgement does not arrive after a certain time period, the packet is assumed to be lost and is retransmitted. An optimized packet mixing process generates mixture packets and decides which nodes to send the mixture packets. The local network coding framework and method also includes methods for representing the composition of a mixture packet and using mixing at a wireless access point to improve the performance of the wireless local area network.
摘要翻译：本地网络编码框架和方法包括通过减少开销来提高无线网络的效率的技术。本地网络编码方法包括通过向相邻节点发送分组列表的Bloom过滤器来在无线网络上的节点之间交换数据可用性。基于数据可用性，执行纯数据包的优化混合，形成混合数据包进行输出。单独的确认缓冲区跟踪发送但未确认的纯数据包。如果确认在某个时间段之后未到达，则假定该分组丢失并被重发。优化的分组混合过程产生混合分组，并决定哪些节点发送混合分组。本地网络编码框架和方法还包括用于表示混合分组的组合并在无线接入点使用混合来改善无线局域网的性能的方法。

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