公开(公告)号：US20150156815A1

公开(公告)日：2015-06-04

申请号：US14095406

申请日：2013-12-03

Applicant: Cisco Technology, Inc.

Inventor： Tak Ming Pang ,  Robert C. Meier ,  Yanxin Na ,  Emburey Samrex Edward

IPC: H04W84/12

CPC classification number: H04L45/28 ,  H04L45/122 ,  H04L45/48 ,  H04W40/24 ,  H04W84/12

Abstract: A wireless mesh network includes mesh APs and a root AP forming a root of a tree of the mesh APs in which the mesh APs are linked back to the root AP over wireless backhaul links. The root AP has a wired connection to a wired network. An AP detects a loss of connectivity to a controller through which traffic associated with the AP is normally routed to and from the wired network. In response, if the AP is the root AP, the root AP operates as a proxy controller through which the traffic may be routed. The AP maintains connectivity with parent and child APs over the wireless backhaul links.

Abstract translation: 无线网状网络包括网状AP和根AP，其形成网状AP的树的根，其中网状AP通过无线回程链路链接回根AP。 根AP具有到有线网络的有线连接。 AP检测到与控制器的连接性的丢失，通过该控制器，与AP相关联的流量通常路由到有线网络并从有线网络路由。 作为响应，如果AP是根AP，则根AP作为代理控制器操作，通过该代理控制器可以路由流量。 AP通过无线回程链路保持与父和子AP的连接。

公开(公告)号：US09055449B2

公开(公告)日：2015-06-09

申请号：US13691912

申请日：2012-12-03

Applicant: Cisco Technology, Inc.

Inventor： Matthew A. Silverman ,  Jeffrey R. Adams ,  David Kloper ,  Yanxin Na ,  Narayan Vishwanathan ,  Daniel Wee

IPC: H04B1/00 ,  H04B15/00 ,  H04W16/28

CPC classification number: H04W16/28 ,  H04B7/0626 ,  H04B7/0634

Abstract: A channel sounding scheme is presented herein that relies on a combination of a first channel sounding procedure and a second channel sounding procedure. The first channel sounding technique is one that involves an exchange of dedicated channel sounding related signals to determine channel conditions between the first wireless communication device and the particular second wireless communication device. The second channel sounding technique is one in which channel conditions are implicitly discovered from any signals transmitted by the particular second wireless communication device to the first wireless communication device. A first wireless communication device computes updates to steering matrix information used for beamforming one or more signal streams to a particular second wireless communication device based on a combination of the first channel sounding technique and the second channel sounding technique.

Abstract translation: 此处呈现依赖于第一声道探测程序和第二声道探测程序的组合的声道探测方案。 第一通道探测技术是涉及专用信道探测相关信号的交换以确定第一无线通信设备和特定第二无线通信设备之间的信道状况的技术。 第二信道探测技术是从特定的第二无线通信设备向第一无线通信设备发送的任何信号隐含地发现信道条件的方法。 第一无线通信设备基于第一信道探测技术和第二信道探测技术的组合，计算用于将一个或多个信号流波束成形到特定第二无线通信设备的导引矩阵信息的更新。

公开(公告)号：US09769063B2

公开(公告)日：2017-09-19

申请号：US15174037

申请日：2016-06-06

Applicant: Cisco Technology, Inc.

Inventor： Tak Ming Pang ,  Robert C. Meier ,  Yanxin Na ,  Emburey Samrex Edward

IPC: H04L12/703 ,  H04W84/12 ,  H04W40/24 ,  H04L12/733 ,  H04L12/753

CPC classification number: H04L45/28 ,  H04L45/122 ,  H04L45/48 ,  H04W40/24 ,  H04W84/12

Abstract: A wireless mesh network includes mesh access points (mesh APs) and a root access point (RAP) forming a root of a tree of the mesh APs in which the mesh APs are linked back to the RAP through parent-child relationships over wireless backhaul links. A mesh AP provides access to the mesh network via connections to wireless clients in one or more wireless local area networks (WLANs) served by the mesh AP. The mesh AP stores mappings between the one or more WLANs served by the mesh AP and one or more virtual local area networks (VLANs) configured on a wired network and to which the WLANs are assigned. The mesh AP receives mappings between the VLANs configured on the wired network and WLANs served by the mesh AP as known by the RAP. If the stored mappings and the received mappings differ, the mesh AP updates the stored mappings with the received mappings that differ from the stored mappings.

公开(公告)号：US20160285751A1

公开(公告)日：2016-09-29

申请号：US15174037

申请日：2016-06-06

Applicant: Cisco Technology, Inc.

Inventor： Tak Ming Pang ,  Robert C. Meier ,  Yanxin Na ,  Emburey Samrex Edward

IPC: H04L12/703 ,  H04W40/24 ,  H04L12/733 ,  H04L12/753

CPC classification number: H04L45/28 ,  H04L45/122 ,  H04L45/48 ,  H04W40/24 ,  H04W84/12

Abstract: A wireless mesh network includes mesh access points (mesh APs) and a root access point (RAP) forming a root of a tree of the mesh APs in which the mesh APs are linked back to the RAP through parent-child relationships over wireless backhaul links. A mesh AP provides access to the mesh network via connections to wireless clients in one or more wireless local area networks (WLANs) served by the mesh AP. The mesh AP stores mappings between the one or more WLANs served by the mesh AP and one or more virtual local area networks (VLANs) configured on a wired network and to which the WLANs are assigned. The mesh AP receives mappings between the VLANs configured on the wired network and WLANs served by the mesh AP as known by the RAP. If the stored mappings and the received mappings differ, the mesh AP updates the stored mappings with the received mappings that differ from the stored mappings.

Abstract translation: 无线网状网络包括网格接入点（mesh AP）和形成网状AP的树根的根接入点（RAP），其中网状AP通过无线回程链路的父子关系链接回RAP 。 网格AP通过与由网格AP服务的一个或多个无线局域网（WLAN）中的无线客户端的连接来提供对网状网络的访问。 网格AP存储网格AP所服务的一个或多个WLAN之间的映射，以及在有线网络上配置并分配了WLAN的一个或多个虚拟局域网（VLAN）的映射。 网格AP接收在有线网络上配置的VLAN和网络AP所服务的WLAN之间的映射关系，如RAP所知。 如果存储的映射和接收到的映射不同，则网格AP将使用接收到的与存储的映射不同的映射更新存储的映射。

公开(公告)号：US10225180B2

公开(公告)日：2019-03-05

申请号：US15675846

申请日：2017-08-14

Applicant: Cisco Technology, Inc.

Inventor： Tak Ming Pang ,  Robert C. Meier ,  Yanxin Na ,  Emburey Samrex Edward

IPC: H04L12/703 ,  H04W84/12 ,  H04W40/24 ,  H04L12/733 ,  H04L12/753

Abstract: A method is performed at a mesh access point (MAP) in a wireless mesh network including access points (APs) of a spanning tree being divided among multiple Internet Protocol (IP) subnets. The method includes receiving from a first parent AP to which the MAP is a child a first IP subnet identifier indicating the first IP subnet to which the first parent AP belongs. The method also includes obtaining a first IP address associated with the first IP subnet, roaming from the first to a second parent AP, receiving from the second parent AP a second IP subnet identifier indicating a second IP subnet to which the second parent AP belongs, determining if the first and second parent APs are both part of the same IP subnet, and determining whether to maintain connectivity with a current controller or establish connectivity to a new controller based on results of the determining.

公开(公告)号：US20170346729A1

公开(公告)日：2017-11-30

申请号：US15675846

申请日：2017-08-14

Applicant: Cisco Technology, Inc.

Inventor： Tak Ming Pang ,  Robert C. Meier ,  Yanxin Na ,  Emburey Samrex Edward

IPC: H04L12/703 ,  H04W40/24 ,  H04L12/753 ,  H04W84/12 ,  H04L12/733

CPC classification number: H04L45/28 ,  H04L45/122 ,  H04L45/48 ,  H04W40/24 ,  H04W84/12

Abstract: A method is performed at a mesh access point (MAP) in a wireless mesh network including access points (APs) of a spanning tree being divided among multiple Internet Protocol (IP) subnets. The method includes receiving from a first parent AP to which the MAP is a child a first IP subnet identifier indicating the first IP subnet to which the first parent AP belongs. The method also includes obtaining a first IP address associated with the first IP subnet, roaming from the first to a second parent AP, receiving from the second parent AP a second IP subnet identifier indicating a second IP subnet to which the second parent AP belongs, determining if the first and second parent APs are both part of the same IP subnet, and determining whether to maintain connectivity with a current controller or establish connectivity to a new controller based on results of the determining.

公开(公告)号：US09408249B2

公开(公告)日：2016-08-02

申请号：US14095406

申请日：2013-12-03

Applicant: Cisco Technology, Inc.

Inventor： Tak Ming Pang ,  Robert C. Meier ,  Yanxin Na ,  Emburey Samrex Edward

IPC: H04W84/12 ,  H04W40/24 ,  H04L12/733 ,  H04L12/703 ,  H04L12/753

CPC classification number: H04L45/28 ,  H04L45/122 ,  H04L45/48 ,  H04W40/24 ,  H04W84/12

Abstract: A wireless mesh network includes mesh APs and a root AP forming a root of a tree of the mesh APs in which the mesh APs are linked back to the root AP over wireless backhaul links. The root AP has a wired connection to a wired network. An AP detects a loss of connectivity to a controller through which traffic associated with the AP is normally routed to and from the wired network. In response, if the AP is the root AP, the root AP operates as a proxy controller through which the traffic may be routed. The AP maintains connectivity with parent and child APs over the wireless backhaul links.

Abstract translation: 无线网状网络包括网状AP和根AP，其形成网状AP的树的根，其中网状AP通过无线回程链路链接回根AP。 根AP具有到有线网络的有线连接。 AP检测到与控制器的连接性的丢失，通过该控制器，与AP相关联的流量通常路由到有线网络并从有线网络路由。 作为响应，如果AP是根AP，则根AP作为代理控制器操作，通过该代理控制器可以路由流量。 AP通过无线回程链路保持与父和子AP的连接。

公开(公告)号：US20140154992A1

公开(公告)日：2014-06-05

申请号：US13691912

申请日：2012-12-03

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Matthew A. Silverman ,  Jeffrey R. Adams ,  David Kloper ,  Yanxin Na ,  Narayan Vishwanathan ,  Daniel Wee

IPC: H04W16/28

CPC classification number: H04W16/28 ,  H04B7/0626 ,  H04B7/0634

Abstract: A channel sounding scheme is presented herein that relies on a combination of a first channel sounding procedure and a second channel sounding procedure. The first channel sounding technique is one that involves an exchange of dedicated channel sounding related signals to determine channel conditions between the first wireless communication device and the particular second wireless communication device. The second channel sounding technique is one in which channel conditions are implicitly discovered from any signals transmitted by the particular second wireless communication device to the first wireless communication device. A first wireless communication device computes updates to steering matrix information used for beamforming one or more signal streams to a particular second wireless communication device based on a combination of the first channel sounding technique and the second channel sounding technique.

Abstract translation: 此处呈现依赖于第一声道探测程序和第二声道探测程序的组合的声道探测方案。 第一通道探测技术是涉及专用信道探测相关信号的交换以确定第一无线通信设备和特定第二无线通信设备之间的信道状况的技术。 第二信道探测技术是从特定的第二无线通信设备向第一无线通信设备发送的任何信号隐含地发现信道条件的方法。 第一无线通信设备基于第一信道探测技术和第二信道探测技术的组合，计算用于将一个或多个信号流波束成形到特定第二无线通信设备的导引矩阵信息的更新。