公开(公告)号：US09654344B2

公开(公告)日：2017-05-16

申请号：US14801532

申请日：2015-07-16

Applicant: Cisco Technology, Inc.

Inventor： Douglas Chan ,  David R. Oran

IPC: H04Q11/00 ,  H04L12/64 ,  H05K7/14 ,  H04L12/24 ,  H04B7/0452 ,  H04B7/06

CPC classification number: H04L12/6418 ,  H04B7/0452 ,  H04B7/0626 ,  H04L41/0896 ,  H04L45/16 ,  H04Q11/0005 ,  H05K7/1485

Abstract: In one embodiment, a source top-of-rack (ToR) switch may identify multiple destination ToR switches from a group of ToR switches to send data traffic to. The source ToR switch may be connected to the group of ToR switches via a base network. The system may determine whether each destination ToR switch is suitable for receiving data transmission via a point-to-multipoint wireless flyway. The two or more destination ToR switches that are determined to be suitable may be considered flyway candidate ToR switches. The system may establish the point-to-multipoint wireless flyway between the source ToR switch and the flyway candidate ToR switches. The system may then transmit the data traffic from the source ToR switch to each of the flyway candidate ToR switches via the point-to-multipoint wireless flyway.

公开(公告)号：US09332046B2

公开(公告)日：2016-05-03

申请号：US14056051

申请日：2013-10-17

Applicant: Cisco Technology, Inc.

Inventor： Douglas Chan ,  Jiang Zhu ,  Hao Hu

IPC: H04L29/06 ,  H04N21/442 ,  H04N21/2343 ,  H04N21/845 ,  H04N21/00

CPC classification number: H04L65/60 ,  G06Q10/06 ,  H04L65/1083 ,  H04L65/4084 ,  H04L65/4092 ,  H04L65/607 ,  H04L67/38 ,  H04N21/00 ,  H04N21/23439 ,  H04N21/44209 ,  H04N21/8456

Abstract: An edge server communicates with a client in a local network. The client displays a remote desktop image representative of a virtual desk image generated by a virtual desktop server (VDS). The edge server receives from the VDS a desktop image to be displayed on the remote desktop. The desktop image includes an incomplete window in which graphic media, such as video, is to be displayed. The edge server determines communication link conditions in the local network and a corresponding transmit data rate at which to transmit data to the client device and a suitable encoding rate at which the graphic media is encoded. The edge server downloads the graphic media from the content server, merges the downloaded graphic media into the incomplete area to produce a completed desktop image, and transmits the completed desktop image at the determined transmit data rate for display on the remote desktop.

Abstract translation: 边缘服务器与本地网络中的客户端进行通信。 客户端显示代表虚拟桌面服务器（VDS）生成的虚拟桌面映像的远程桌面映像。 边缘服务器从VDS接收桌面图像以在远程桌面上显示。 桌面图像包括不完整的窗口，其中将显示诸如视频的图形媒体。 边缘服务器确定本地网络中的通信链路条件以及将数据发送到客户端设备的相应发送数据速率以及对图形媒体进行编码的合适的编码速率。 边缘服务器从内容服务器下载图形媒体，将下载的图形媒体合并到不完整的区域，以产生完整的桌面图像，并以确定的传输数据速率传输完整的桌面映像，以便在远程桌面上显示。

公开(公告)号：US09276844B2

公开(公告)日：2016-03-01

申请号：US14230034

申请日：2014-03-31

Applicant: Cisco Technology, Inc.

Inventor： Pascal Thubert ,  Charles Calvin Byers ,  Douglas Chan

IPC: H04L12/721 ,  H04L29/06 ,  H04B10/27 ,  H04B10/50 ,  H04B10/114 ,  H04B10/116

CPC classification number: H04L45/66 ,  H04B10/1149 ,  H04B10/116 ,  H04B10/27 ,  H04B10/502 ,  H04L69/22

Abstract: In one embodiment, a method comprises receiving, by an apparatus, a Media Access Control (MAC) frame destined for a destination device; dividing, by the apparatus, the MAC frame into frame fragments; coding the frame fragments into encoded cells; and causing, by the apparatus, transmission of selected subsets of the encoded cells, as distinct flows of the encoded cells, by respective optical physical layer transmitter devices reachable by the destination device.

Abstract translation: 在一个实施例中，一种方法包括由设备接收去往目的地设备的媒体接入控制（MAC）帧; 将MAC帧划分成帧分段; 将帧片段编码成编码的细胞; 并且由所述设备通过由所述目的地设备可达的相应光学物理层发射机设备使所编码的小区的所选择的子集作为编码小区的不同流发送。

公开(公告)号：US09609569B2

公开(公告)日：2017-03-28

申请号：US14031853

申请日：2013-09-19

Applicant: Cisco Technology, Inc.

Inventor： Charles Calvin Byers ,  Douglas Chan

IPC: H04W36/32 ,  H04W16/28

CPC classification number: H04W36/32 ,  H04W16/28

Abstract: In one embodiment, a method comprises: establishing a first broadband data link between a first mobile narrowbeam transceiver positioned on a vehicle and a first fixed narrowbeam transceiver mounted along a prescribed path of the vehicle; and switching from the first broadband data link, by the first mobile narrowbeam transceiver, to a second broadband data link with a second fixed narrowbeam transceiver mounted along the prescribed path after the first fixed narrowbeam transceiver, enabling the vehicle to maintain continuous broadband access to a wide area network via a prescribed sequence of the fixed narrowbeam transceivers along the prescribed path.

公开(公告)号：US08971273B2

公开(公告)日：2015-03-03

申请号：US13647517

申请日：2012-10-09

Applicant: Cisco Technology, Inc.

Inventor： Douglas Chan ,  Mansoor Ahmed ,  Ahmadreza Hedayat ,  Brian D. Hart

IPC: H04W4/00

CPC classification number: H04W72/082 ,  H04W72/0453 ,  H04W84/12

Abstract: Dynamic bandwidth selection techniques are provided for a plurality of wireless access point devices that operate in a wireless local area network. Each access point device is capable of serving wireless client devices with a bandwidth from a set of possible bandwidths associated with one or multiple contiguous or non-contiguous radio frequency channels. A bias is generated based on determined type of traffic or client composition for each access point device, the bias favoring a channel assignment that results in a particular bandwidth in the set of bandwidths. The bias is applied to metrics representing severity and degree of interference for each channel to generate adjusted metrics. A bandwidth from the set of possible bandwidths is selected for each access point device based on the adjusted metrics.

Abstract translation: 为在无线局域网中操作的多个无线接入点设备提供动态带宽选择技术。 每个接入点设备能够从与一个或多个连续或不连续射频信道相关联的一组可能带宽中为带宽提供无线客户端设备。 基于针对每个接入点设备的确定的业务类型或客户端组合产生偏差，偏好有利于导致该组带宽中的特定带宽的信道分配。 该偏差被应用于表示每个信道的严重性和干扰程度以产生经调整的度量的度量。 基于经调整的度量，为每个接入点设备选择来自该组可能带宽的带宽。

公开(公告)号：US20140086132A1

公开(公告)日：2014-03-27

申请号：US13626983

申请日：2012-09-26

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Hui Liu ,  Douglas Chan ,  Tak Ming Pang

IPC: H04W4/08

CPC classification number: H04L12/185 ,  H04W12/02 ,  H04W12/06 ,  H04W36/026 ,  H04W36/18 ,  H04W48/20 ,  H04W72/005 ,  H04W80/04 ,  H04W84/12 ,  H04W88/08

Abstract: Techniques are provided for delivering data to a wireless client device in a wireless local area network via a plurality of access point devices as the wireless client device roams from one access point device to another. A wireless client device receives data communications (i.e., traffic) via a first wireless access point device in the wireless local area network. An impending roam of a wireless client device is detected. A set of one or more candidate wireless access point devices other than the first wireless access point device is determined to which the wireless client device may potentially roam. The one or more wireless access point devices in the set are assigned to a multicast group, and the traffic is sent to the multicast group.

Abstract translation: 提供了技术，用于当无线客户端设备从一个接入点设备漫游到另一个接入点设备时，经由多个接入点设备将数据传送到无线局域网中的无线客户端设备。 无线客户端设备经由无线局域网中的第一无线接入点设备接收数据通信（即业务）。 检测到无线客户端设备即将发生的漫游。 确定除了第一无线接入点设备之外的一个或多个候选无线接入点设备的集合，无线客户端设备可能潜在地漫游到该无线接入点设备。 集合中的一个或多个无线接入点设备被分配给多播组，并且业务被发送到多播组。