公开(公告)号：US09277370B2

公开(公告)日：2016-03-01

申请号：US14242122

申请日：2014-04-01

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Sateesh K. Addepalli ,  Ashok K. Moghe ,  Flavio Bonomi ,  Marc Jean-Philippe Girardot ,  Vijaynarayanan Subramanian ,  Lillian Lei Dai ,  Rong Pan ,  Preethi Natarajan ,  Xiaoqing Zhu ,  Pascal Thubert ,  Chiu Ngok Eric Wong

IPC: H04J3/18 ,  H04W4/04 ,  H04W72/04 ,  H04W52/12 ,  G06F9/54 ,  H04W48/06 ,  H04W48/18 ,  B60W50/10 ,  G06F3/01 ,  G06F3/16 ,  H04L12/26 ,  H04L29/06 ,  H04W12/08 ,  G06F21/45 ,  H04W12/06 ,  H04W28/02 ,  H04W40/20 ,  H04W48/02 ,  H04L29/08 ,  B60R16/023 ,  H04L12/721 ,  H04L29/12 ,  H04W8/06 ,  H04W8/08 ,  H04W8/26 ,  H04W40/02 ,  H04W28/06 ,  H04W84/00 ,  H04W36/08 ,  H04W52/14 ,  H04W52/22 ,  H04W52/24 ,  H04W52/34 ,  H04W84/12 ,  H04W92/18

CPC classification number: H04W4/046 ,  B60R16/023 ,  B60W50/10 ,  G06F3/017 ,  G06F3/167 ,  G06F9/542 ,  G06F21/45 ,  H04L1/008 ,  H04L29/06578 ,  H04L43/0811 ,  H04L43/0858 ,  H04L43/0876 ,  H04L45/12 ,  H04L51/02 ,  H04L61/2592 ,  H04L63/08 ,  H04L63/107 ,  H04L67/12 ,  H04L67/32 ,  H04L69/18 ,  H04Q9/00 ,  H04W4/00 ,  H04W4/10 ,  H04W8/06 ,  H04W8/08 ,  H04W8/26 ,  H04W12/02 ,  H04W12/04 ,  H04W12/06 ,  H04W12/08 ,  H04W28/0215 ,  H04W28/06 ,  H04W36/08 ,  H04W40/02 ,  H04W40/20 ,  H04W48/02 ,  H04W48/06 ,  H04W48/16 ,  H04W48/18 ,  H04W52/12 ,  H04W52/143 ,  H04W52/225 ,  H04W52/241 ,  H04W52/346 ,  H04W72/0406 ,  H04W72/042 ,  H04W72/0493 ,  H04W76/45 ,  H04W80/02 ,  H04W84/005 ,  H04W84/12 ,  H04W92/18 ,  Y02A30/60

Abstract: A system includes an on-board unit (OBU) in communication with an internal subsystem in a vehicle on at least one Ethernet network and a node on a wireless network. A method in one embodiment includes receiving a message on the Ethernet network in the vehicle, encapsulating the message to facilitate translation to Ethernet protocol if the message is not in Ethernet protocol, and transmitting the message in Ethernet protocol to its destination. Certain embodiments include optimizing data transmission over the wireless network using redundancy caches, dictionaries, object contexts databases, speech templates and protocol header templates, and cross layer optimization of data flow from a receiver to a sender over a TCP connection. Certain embodiments also include dynamically identifying and selecting an operating frequency with least interference for data transmission over the wireless network.

Abstract translation: 系统包括与至少一个以太网上的车辆中的内部子系统和无线网络上的节点通信的车载单元（OBU）。 在一个实施例中的方法包括在车辆上的以太网上接收消息，如果消息不在以太网协议中，封装该消息以便于转换到以太网协议，并将以太网协议中的消息发送到其目的地。 某些实施例包括使用冗余高速缓存，词典，对象上下文数据库，语音模板和协议头模板来优化无线网络上的数据传输，以及通过TCP连接从接收器到发送者的数据流的交叉层优化。 某些实施例还包括通过无线网络动态地识别和选择具有最小干扰的数据传输的工作频率。

公开(公告)号：US20150264554A1

公开(公告)日：2015-09-17

申请号：US14664101

申请日：2015-03-20

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Sateesh K. Addepalli ,  Raghuram S. Sudhaakar ,  Lillian Lei Dai ,  Vina Ermagan ,  Preethi Natarajan ,  Kevin C. Lee ,  Pere Monclus ,  Robert Edward Somers

IPC: H04W8/06 ,  H04W8/26 ,  B60R16/023 ,  H04L12/721 ,  H04L29/12 ,  H04W8/08 ,  H04W40/02

CPC classification number: H04W4/046 ,  B60R16/023 ,  B60W50/10 ,  G06F3/017 ,  G06F3/167 ,  G06F9/542 ,  G06F21/45 ,  H04L1/008 ,  H04L29/06578 ,  H04L43/0811 ,  H04L43/0858 ,  H04L43/0876 ,  H04L45/12 ,  H04L51/02 ,  H04L61/2592 ,  H04L63/08 ,  H04L63/107 ,  H04L67/12 ,  H04L67/32 ,  H04L69/18 ,  H04Q9/00 ,  H04W4/00 ,  H04W4/10 ,  H04W8/06 ,  H04W8/08 ,  H04W8/26 ,  H04W12/02 ,  H04W12/04 ,  H04W12/06 ,  H04W12/08 ,  H04W28/0215 ,  H04W28/06 ,  H04W36/08 ,  H04W40/02 ,  H04W40/20 ,  H04W48/02 ,  H04W48/06 ,  H04W48/16 ,  H04W48/18 ,  H04W52/12 ,  H04W52/143 ,  H04W52/225 ,  H04W52/241 ,  H04W52/346 ,  H04W72/0406 ,  H04W72/042 ,  H04W72/0493 ,  H04W76/45 ,  H04W80/02 ,  H04W84/005 ,  H04W84/12 ,  H04W92/18 ,  Y02A30/60

Abstract: A method includes selecting a path for routing a data packet from a source node to a destination node in a vehicular ad hoc network, storing the data packet if the selected path is identified as a dead end, and establishing a communication link with a first node. The method also includes forwarding the data packet to the first node if a first distance between the first node and the destination node is less than a second distance between the source node and the destination node. More specific embodiments include sending a query for location information of the destination node, receiving the location information including two or more available paths from the source node to the destination node, and determining the path for routing the data packet is an optimal path of the two or more available paths.

Abstract translation: 一种方法包括：选择用于将数据分组从源节点路由到车辆ad hoc网络中的目的地节点的路径，如果所选路径被识别为死端，则存储数据分组，以及建立与第一节点的通信链路 。 如果第一节点和目的地节点之间的第一距离小于源节点和目的地节点之间的第二距离，则该方法还包括将数据分组转发到第一节点。 更具体的实施例包括发送对目的地节点的位置信息的查询，接收包括从源节点到目的地节点的两个或多个可用路径的位置信息，以及确定路由数据包的路径是两者的最佳路径 或更多可用路径。

公开(公告)号：US20180137412A1

公开(公告)日：2018-05-17

申请号：US15352938

申请日：2016-11-16

Applicant: Cisco Technology, Inc.

Inventor： Mehdi Nikkhah ,  Preethi Natarajan

IPC: G06N3/08 ,  H04L12/24

CPC classification number: H04L41/147 ,  G06N3/0445 ,  G06N3/084 ,  H04L41/0896 ,  H04L41/16 ,  H04L43/067 ,  H04L43/0894

Abstract: A server uses an LSTM neural network to predict a bandwidth value for a computer network element using past traffic data. The server receives a time series of bandwidth utilization of the computer network element. The time series includes bandwidth values associated with a respective time values. The LSTM neural network is trained with a training set selected from at least a portion of the time series. The server generates a predicted bandwidth value associated with a future time value based on the LSTM neural network. The provisioned bandwidth for the computer network element is adjusted based on the predicted bandwidth value.

公开(公告)号：US09648464B1

公开(公告)日：2017-05-09

申请号：US15151081

申请日：2016-05-10

Applicant: Cisco Technology, Inc.

Inventor： Huy Phuong Tran ,  Santosh Ghanshyam Pandey ,  Abhishek Bhattacharyya ,  Preethi Natarajan

IPC: H04W4/02 ,  H04W64/00 ,  H04W28/26 ,  H04W24/10

CPC classification number: H04W4/029 ,  G01S5/02 ,  H04W16/22 ,  H04W24/02 ,  H04W24/10

Abstract: An efficient process is provided that exploits features in historical and current client location data to forecast client counts of different zones up to several hours ahead. These features may be obtained from correlations of client counts of multiple zones in a recent and long period of time. These features may also be combined using techniques that choose the best performing method for a particular dataset and a particular lookahead time. This process provides better forecast/prediction on the zone-based client count data, and is very useful in customer analytics which can now show the future predicted value. This can help the analytics customers to plan their operations based on the location analytics.

公开(公告)号：US20150029987A1

公开(公告)日：2015-01-29

申请号：US14485050

申请日：2014-09-12

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Sateesh K. Addepalli ,  Lillian Lei Dai ,  Flavio Bonomi ,  Xiaoqing Zhu ,  Fabio R. Maino ,  Pere Monclus ,  Rong Pan ,  Preethi Natarajan ,  Vina Ermagan ,  Alexander Loukissas

IPC: H04W72/04 ,  H04W12/06 ,  H04W40/20 ,  H04W48/02 ,  H04W48/18 ,  H04W28/02

CPC classification number: H04W4/046 ,  B60R16/023 ,  B60W50/10 ,  G06F3/017 ,  G06F3/167 ,  G06F9/542 ,  G06F21/45 ,  H04L1/008 ,  H04L29/06578 ,  H04L43/0811 ,  H04L43/0858 ,  H04L43/0876 ,  H04L45/12 ,  H04L51/02 ,  H04L61/2592 ,  H04L63/08 ,  H04L63/107 ,  H04L67/12 ,  H04L67/32 ,  H04L69/18 ,  H04Q9/00 ,  H04W4/00 ,  H04W4/10 ,  H04W8/06 ,  H04W8/08 ,  H04W8/26 ,  H04W12/02 ,  H04W12/04 ,  H04W12/06 ,  H04W12/08 ,  H04W28/0215 ,  H04W28/06 ,  H04W36/0009 ,  H04W36/08 ,  H04W40/02 ,  H04W40/20 ,  H04W48/02 ,  H04W48/06 ,  H04W48/16 ,  H04W48/18 ,  H04W52/12 ,  H04W52/143 ,  H04W52/225 ,  H04W52/241 ,  H04W52/346 ,  H04W72/0406 ,  H04W72/042 ,  H04W72/0493 ,  H04W76/45 ,  H04W80/02 ,  H04W84/005 ,  H04W84/12 ,  H04W92/18 ,  Y02A30/60

Abstract: A method in one embodiment includes intercepting a message in an on-board unit (OBU) of a vehicular network environment between a source and a receiver in the vehicular network environment, verifying the message is sent from the source, verifying the message is not altered, evaluating a set of source flow control policies associated with the source, and blocking the message if the set of source flow control policies indicate the message is not permitted. In specific embodiments, the message is not permitted if a level of access assigned to the source in the set of source flow control policies does not match a level of access tagged on the message. In further embodiments, the method includes evaluating a set of receiver flow control policies associated with the receiver, and blocking the message if the set of receiver flow control policies indicates the message is not permitted.

Abstract translation: 在一个实施例中的方法包括拦截车辆网络环境中的源和接收机之间的车载网络环境的车载单元（OBU）中的消息，验证该消息是从源发送的，验证该消息没有被改变 ，评估与源相关联的一组源流控制策略，以及如果源流控制策略集指示不允许该消息，则阻塞该消息。 在具体实施例中，如果分配给源流控制策略集中的源的访问级别与消息上标记的访问级别不匹配，则不允许该消息。 在另外的实施例中，该方法包括评估与接收器相关联的一组接收器流控制策略，以及如果该组接收器流控制策略指示该消息不被允许，则阻塞该消息。

公开(公告)号：US20140328175A1

公开(公告)日：2014-11-06

申请号：US13874600

申请日：2013-05-01

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Rong Pan ,  Preethi Natarajan ,  Chiara Piglione ,  Mythili Suryanarayana Prabhu ,  Frederick Juergens Baker ,  Bill Carroll VerSteeg ,  Vijaynarayanan Subramanian

IPC: H04L12/823 ,  H04L12/873

CPC classification number: H04L47/32 ,  H04L47/127 ,  H04L47/283 ,  H04L47/30 ,  H04L47/6255

Abstract: In one embodiment, a method includes estimating a current queuing latency, the estimated current queuing latency being associated with a queue of packets maintained in a buffer. The method also includes calculating a current drop or mark probability, the current drop or mark probability being associated with a probability that packets associated with the queue of packets will be dropped or marked. A rate at which the packets associated with the queue of packets are dequeued from the buffer is estimated in order to estimate the current queuing latency. The current drop or mark probability is calculated using the current estimated queuing latency.

Abstract translation: 在一个实施例中，一种方法包括估计当前排队延迟，所估计的当前排队等待时间与保持在缓冲器中的分组队列相关联。 该方法还包括计算当前下降或标记概率，当前丢弃或标记概率与丢弃或标记与分组队列相关联的分组的概率相关联。 与缓冲区队列相关联的分组的速率被估计为估计当前排队等待时间。 使用当前估计的排队延迟来计算当前的下降或标记概率。

公开(公告)号：US20140215491A1

公开(公告)日：2014-07-31

申请号：US14242122

申请日：2014-04-01

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Sateesh K. Addepalli ,  Ashok K. Moghe ,  Flavio Bonomi ,  Marc Jean-Philippe Girardot ,  Vijaynarayanan Subramanian ,  Lillian Lei Dai ,  Rong Pan ,  Preethi Natarajan ,  Xiaoqing Zhu ,  Pascal Thubert ,  Chiu Ngok Eric Wong

IPC: G06F9/54

CPC classification number: H04W4/046 ,  B60R16/023 ,  B60W50/10 ,  G06F3/017 ,  G06F3/167 ,  G06F9/542 ,  G06F21/45 ,  H04L1/008 ,  H04L29/06578 ,  H04L43/0811 ,  H04L43/0858 ,  H04L43/0876 ,  H04L45/12 ,  H04L51/02 ,  H04L61/2592 ,  H04L63/08 ,  H04L63/107 ,  H04L67/12 ,  H04L67/32 ,  H04L69/18 ,  H04Q9/00 ,  H04W4/00 ,  H04W4/10 ,  H04W8/06 ,  H04W8/08 ,  H04W8/26 ,  H04W12/02 ,  H04W12/04 ,  H04W12/06 ,  H04W12/08 ,  H04W28/0215 ,  H04W28/06 ,  H04W36/08 ,  H04W40/02 ,  H04W40/20 ,  H04W48/02 ,  H04W48/06 ,  H04W48/16 ,  H04W48/18 ,  H04W52/12 ,  H04W52/143 ,  H04W52/225 ,  H04W52/241 ,  H04W52/346 ,  H04W72/0406 ,  H04W72/042 ,  H04W72/0493 ,  H04W76/45 ,  H04W80/02 ,  H04W84/005 ,  H04W84/12 ,  H04W92/18 ,  Y02A30/60

Abstract: A system includes an on-board unit (OBU) in communication with an internal subsystem in a vehicle on at least one Ethernet network and a node on a wireless network. A method in one embodiment includes receiving a message on the Ethernet network in the vehicle, encapsulating the message to facilitate translation to Ethernet protocol if the message is not in Ethernet protocol, and transmitting the message in Ethernet protocol to its destination. Certain embodiments include optimizing data transmission over the wireless network using redundancy caches, dictionaries, object contexts databases, speech templates and protocol header templates, and cross layer optimization of data flow from a receiver to a sender over a TCP connection. Certain embodiments also include dynamically identifying and selecting an operating frequency with least interference for data transmission over the wireless network.

Abstract translation: 系统包括与至少一个以太网上的车辆中的内部子系统和无线网络上的节点通信的车载单元（OBU）。 在一个实施例中的方法包括在车辆上的以太网上接收消息，如果消息不在以太网协议中，封装该消息以便于转换到以太网协议，并将以太网协议中的消息发送到其目的地。 某些实施例包括使用冗余高速缓存，词典，对象上下文数据库，语音模板和协议头模板来优化无线网络上的数据传输，以及通过TCP连接从接收器到发送者的数据流的交叉层优化。 某些实施例还包括通过无线网络动态地识别和选择具有最小干扰的数据传输的工作频率。

公开(公告)号：US10979875B2

公开(公告)日：2021-04-13

申请号：US16128027

申请日：2018-09-11

Applicant: Cisco Technology, Inc.

Inventor： Lillian Lei Dai ,  Sateesh K. Addepalli ,  Xiaoqing Zhu ,  Preethi Natarajan ,  Rong Pan ,  Fabio R. Maino ,  Flavio Bonomi ,  Alexander Loukissas ,  Vina Ermagan ,  Pere Monclus

IPC: H04W4/40 ,  H04W76/45 ,  H04W52/12 ,  H04W28/06 ,  H04L12/26 ,  H04W12/00 ,  H04W72/04 ,  G06F9/54 ,  H04W48/06 ,  H04W48/18 ,  B60W50/10 ,  G06F3/01 ,  G06F3/16 ,  G06F21/45 ,  H04W28/02 ,  H04W40/20 ,  H04W48/02 ,  H04L29/06 ,  H04L29/08 ,  B60R16/023 ,  H04L12/721 ,  H04L29/12 ,  H04W8/06 ,  H04W8/08 ,  H04W8/26 ,  H04W40/02 ,  H04L1/00 ,  H04W4/00 ,  H04W4/10 ,  H04W80/02 ,  H04Q9/00 ,  H04L12/58 ,  H04W48/16 ,  H04W36/08 ,  H04W52/14 ,  H04W52/22 ,  H04W52/24 ,  H04W52/34 ,  H04W84/00 ,  H04W36/00 ,  H04W84/12 ,  H04W92/18

Abstract: A method in one embodiment includes intercepting a message in an on-board unit (OBU) of a vehicular network environment between a source and a receiver in the vehicular network environment, verifying the message is sent from the source, verifying the message is not altered, evaluating a set of source flow control policies associated with the source, and blocking the message if the set of source flow control policies indicate the message is not permitted. In specific embodiments, the message is not permitted if a level of access assigned to the source in the set of source flow control policies does not match a level of access tagged on the message. In further embodiments, the method includes evaluating a set of receiver flow control policies associated with the receiver, and blocking the message if the set of receiver flow control policies indicates the message is not permitted.

公开(公告)号：US10713578B2

公开(公告)日：2020-07-14

申请号：US14699961

申请日：2015-04-29

Applicant: Cisco Technology, Inc.

Inventor： Hao Hu ,  Preethi Natarajan ,  Nii Ako Ampa-Sowa ,  Stephen E. Jerman

IPC: G06N7/00 ,  H04L12/24 ,  H04L12/26 ,  G06F17/18

Abstract: In one implementation, a method includes obtaining time series data. The time serious data includes a plurality of network utilization measurements. The plurality of network utilization measurements is indicative of a plurality of utilizations of one or more resources of a network resource at a plurality of times. The method also includes determining whether the time series data comprises a plurality of segments. Each segment of the plurality of segments is associated with a separate regression model and each segment includes a portion of the time series data. The method further includes identifying a current segment from the time series data when the time series data comprises the plurality of segments. The method further includes determining an estimated network utilization based on a current regression model associated with the current segment.

公开(公告)号：US10284438B2

公开(公告)日：2019-05-07

申请号：US14612691

申请日：2015-02-03

Applicant: Cisco Technology, Inc.

Inventor： Marc Portoles Comeras ,  Preethi Natarajan ,  Alberto Rodriguez Natal ,  Fabio Rodolfo Maino ,  Alberto Cabellos Aparicio ,  Vasileios Lakafosis ,  Lorand Jakab

IPC: H04L12/24 ,  H04L29/06 ,  H04L12/707 ,  H04L12/801 ,  H04L12/803

Abstract: Techniques are provided for a network mapping server device in a network to receive a connection upgrade message comprising information to establish a first data flow from a first endpoint that does not support multiple subflows for the first data flow according to a multipath protocol, where multiple subflows subdivide the first data flow across two or more network paths. The information in the connection upgrade message is analyzed in order to resolve network connectivity to determine potential network connections for at least two subflows of the first data flow to a second endpoint. A response message is sent comprising information configured to establish at least two subflows for the first data flow between the first endpoint and the second endpoint.