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51. 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。

52. 发明授权

US08972601B2 Flyways in data centers 有权
标题翻译：数据中心的飞行路线
公开(公告)号：US08972601B2
公开(公告)日：2015-03-03
申请号：US12723697
申请日：2010-03-15
申请人： Jitendra D. Padhye , Srikanth Kandula , Paramvir Bahl
发明人： Jitendra D. Padhye , Srikanth Kandula , Paramvir Bahl
IPC分类号： G06F15/16 , H05K7/14 , H04L12/64 , H04L12/24
CPC分类号： H05K7/1498 , H04L12/6418 , H04L41/0896
摘要： Described is a technology by which additional network communications capacity is provided to an oversubscribed base network where needed, through the use of dynamically provisioned communications links referred to as flyways. A controller detects a need for additional network communications capacity between two network machines, e.g., between two racks of servers with top-of-rack switches. The controller configures flyway mechanisms (e.g., one per rack) to carry at least some of the network traffic between the machines of the racks and thereby provide the additional network communications capacity. The flyway mechanisms may be based on any wireless or wired technologies, including 60 GHz technology, optical links, 802.11n or wired commodity switches.
摘要翻译：描述了一种技术，其中通过使用被称为飞行路线的动态配置的通信链路，在需要时向额外的基础网络提供附加的网络通信能力。控制器检测在两个网络机器之间的额外的网络通信容量的需要，例如在具有顶部架子交换机的两个服务器机架之间。控制器配置飞行机构（例如，每个机架一个），以在机架的机器之间携带至少一些网络业务，从而提供额外的网络通信能力。飞越机制可以基于任何无线或有线技术，包括60GHz技术，光链路，802.11n或有线商品交换机。

53. 发明授权

US08411608B2 Efficient and reliable multicast over a Wi-Fi network 有权
标题翻译：通过Wi-Fi网络高效可靠的多播
公开(公告)号：US08411608B2
公开(公告)日：2013-04-02
申请号：US12714360
申请日：2010-02-26
申请人： Ranveer Chandra , Sandeep P. Karanth , Thomas Moscibroda , Vishnu Navda , Jitendra D. Padhye , Ramachandran Ramjee , Lenin Ravindranath Sivalingam
发明人： Ranveer Chandra , Sandeep P. Karanth , Thomas Moscibroda , Vishnu Navda , Jitendra D. Padhye , Ramachandran Ramjee , Lenin Ravindranath Sivalingam
IPC分类号： H04H20/71
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使用虚拟组播接口，允许客户端共享每个组播的公共密钥。

54. 发明申请

US20120324228A1 PLATFORM THAT FACILITATES PRESERVATION OF USER PRIVACY 有权
标题翻译：平台保护用户隐私
公开(公告)号：US20120324228A1
公开(公告)日：2012-12-20
申请号：US13163045
申请日：2011-06-17
申请人： Jitendra D. Padhye , Ratul Mahajan
发明人： Jitendra D. Padhye , Ratul Mahajan
IPC分类号： H04L9/32
CPC分类号： H04W4/20 , H04L9/0869 , H04L9/0872 , H04L9/321 , H04L9/3226 , H04L63/0421 , H04L2209/80 , H04W8/16 , H04W12/02
摘要： Described herein are technologies pertaining to preserving privacy of users of mobile computing devices. Two users of two mobile computing devices share a quantization scheme for quantizing location data using a predefined quantization interval. The two users additionally share a private key that is utilized to encrypt locations obtained by the two computing devices that have been quantized using the shared quantization scheme. Encrypted, quantized locations are compared in a cloud computing service in connection with answering location-based queries, where the comparison is undertaken without the cloud computing service decrypting the encrypted, quantized locations.
摘要翻译：这里描述的是关于保护移动计算设备的用户的隐私的技术。两个移动计算设备的两个用户共享用于使用预定义的量化间隔量化位置数据的量化方案。两个用户另外共享用于加密由使用共享量化方案量化的两个计算设备获得的位置的私钥。加密的量化位置在云计算服务中与应答基于位置的查询相比较，其中进行比较而云计算服务解密加密的量化位置。

55. 发明申请

US20120014313A1 OPPORTUNISTIC USE OF WIRELESS NETWORK STATIONS AS REPEATERS 有权
标题翻译：无线网络作为替代机构的机会性使用
公开(公告)号：US20120014313A1
公开(公告)日：2012-01-19
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
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。

56. 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。

57. 发明申请

US20110087924A1 Diagnosing Abnormalities Without Application-Specific Knowledge 有权
标题翻译：诊断不具备应用专有知识的异常
公开(公告)号：US20110087924A1
公开(公告)日：2011-04-14
申请号：US12579206
申请日：2009-10-14
申请人： Srikanth Kandula , Ratul Mahajan , Patrick D. Verkaik , Sharad Agarwal , Jitendra D. Padhye , Paramivir Bahl
发明人： Srikanth Kandula , Ratul Mahajan , Patrick D. Verkaik , Sharad Agarwal , Jitendra D. Padhye , Paramivir Bahl
IPC分类号： G06F11/07 , G06N5/02
CPC分类号： G06F11/079 , G06F11/0709 , G06F11/0727
摘要： Methods, articles, and systems for determining a probable cause of a component's abnormal behavior are described. To determine the probable cause, a computing device computes, for one or more pairs of components having dependency relationships, a likelihood that behavior of one component of a pair is impacting behavior of the other component of the pair. This computing is based on joint historical behavior of the pair of components. The computing device then determines that one of a plurality of components is a probable cause of the abnormal behavior based on the computed likelihoods.
摘要翻译：描述了用于确定组件异常行为的可能原因的方法，制品和系统。为了确定可能的原因，计算设备对于具有依赖关系的一个或多个成对对，计算一对组件的行为影响该对的另一个组件的行为的可能性。这种计算是基于这对组件的联合历史行为。然后，计算设备基于所计算的可能性来确定多个组件中的一个是异常行为的可能原因。

58. 发明授权

US07860506B2 Model and method for computing performance bounds in multi-hop wireless networks 失效
标题翻译：用于计算多跳无线网络中性能范围的模型和方法
公开(公告)号：US07860506B2
公开(公告)日：2010-12-28
申请号：US12273082
申请日：2008-11-18
申请人： Kamal Jain , Jitendra D. Padhye , Venkata N. Padmanabhan , Lili Qiu
发明人： Kamal Jain , Jitendra D. Padhye , Venkata N. Padmanabhan , Lili Qiu
IPC分类号： H04W40/00
CPC分类号： H04W16/14
摘要： Disclosed is a general model and method for computing performance bounds in multi-hop wireless networks. Rather than focusing on computing asymptotic performance bounds under assumptions of homogeneity or randomness in the network topology and/or workload, the present invention accommodates any given network, technology, interference model, routing paradigm, and workload. Using a conflict graph to formally characterize the impact of wireless interference on the performance of multi-hop wireless networks, methods for computing upper and lower bounds on the capacity of a given wireless network are detailed. Besides computing network capacity, the model and method disclosed can also enable or benefit other applications including maximizing fairness and minimizing maximum link utilization.
摘要翻译：公开了一种用于计算多跳无线网络中的性能界限的通用模型和方法。本发明不考虑在网络拓扑和/或工作负载中的均匀性或随机性假设下计算渐近性能界限，而是适应任何给定的网络，技术，干扰模型，路由范例和工作负载。使用冲突图形式表征无线干扰对多跳无线网络性能的影响，详细描述了计算给定无线网络容量的上限和下限的方法。除了计算网络容量之外，所公开的模型和方法还可以实现或受益于其他应用，包括最大化公平性并最小化最大链路利用率。

59. 发明授权

US07664054B2 Neighbor location discovery with directional antennas in a mesh network 有权
标题翻译：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。

60. 发明授权

US07613138B2 Separating control and data in wireless networks 有权
标题翻译：分离无线网络中的控制和数据
公开(公告)号：US07613138B2
公开(公告)日：2009-11-03
申请号：US11135001
申请日：2005-05-23
申请人： Paramvir Bahl , Pradeep Kyasanur , Jitendra D. Padhye
发明人： Paramvir Bahl , Pradeep Kyasanur , Jitendra D. Padhye
IPC分类号： H04Q7/24
CPC分类号： H04W72/0406
摘要： Wireless communication techniques are described in which control and data are separated. In an implementation, a method is described which includes sending data packets on one or more wireless channels and sending control data relating to the data packets on at least one other wireless channel having a data rate that is lower than a data rate of the one or more wireless channels.
摘要翻译：描述了分离控制和数据的无线通信技术。在一个实现中，描述了一种方法，其包括在一个或多个无线信道上发送数据分组，并且在至少一个其他无线信道上发送与数据分组相关的控制数据，所述至少一个其他无线信道的数据速率低于该数据分组的数据速率，更多的无线频道。

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