公开(公告)号：US08446876B2

公开(公告)日：2013-05-21

申请号：US12773351

申请日：2010-05-04

Applicant: Patrice Calhoun ,  Abhijit Choudhury ,  Rohit Suri ,  Sudhir Jain ,  Bhanu Gopalasetty ,  Navindra Yadav ,  Fusun Ertemalp ,  Kent Leung

Inventor： Patrice Calhoun ,  Abhijit Choudhury ,  Rohit Suri ,  Sudhir Jain ,  Bhanu Gopalasetty ,  Navindra Yadav ,  Fusun Ertemalp ,  Kent Leung

IPC: H04W36/00

CPC classification number: H04W40/24 ,  H04L45/04 ,  H04L45/42 ,  H04W8/087

Abstract: Techniques are provided to enable support of roaming wireless devices in a network such that the wireless devices can keep their Internet Protocol (IP) addresses as they roam across mobility sub-domains. Traffic for a wireless device that roams is tunneled back to the access switch that serves the IP subnet which includes an IP address for the wireless device. Traffic is tunneled back to that access switch for the wireless device when the wireless device roams to another access switch which does not serve the IP subnet for the wireless device in the same mobility sub-domain and when the wireless device roams to a different mobility sub-domain, in which case the traffic is tunneled between tunneling endpoints in the respective mobility sub-domains.

Abstract translation: 提供技术以支持网络中的漫游无线设备，使得无线设备可以在移动子域漫游时保持其互联网协议（IP）地址。 漫游的无线设备的流量被隧道传回给服务于包含无线设备的IP地址的IP子网的接入交换机。 当无线设备漫游到不为同一移动性子域中的无线设备的IP子网服务的另一个接入交换机以及当无线设备漫游到不同的移动性子网时，业务被隧道传送回无线设备的接入交换机 在这种情况下，流量在相应的移动性子域中的隧道端点之间隧道化。

公开(公告)号：US20110274036A1

公开(公告)日：2011-11-10

申请号：US12773360

申请日：2010-05-04

Applicant: Patrice Calhoun ,  Abhijit Choudhury ,  Rohit Suri ,  Sudhir Jain ,  Bhanu Gopalasetty ,  Navindra Yadav ,  Fusun Ertemalp ,  Kent Leung

Inventor： Patrice Calhoun ,  Abhijit Choudhury ,  Rohit Suri ,  Sudhir Jain ,  Bhanu Gopalasetty ,  Navindra Yadav ,  Fusun Ertemalp ,  Kent Leung

IPC: H04W40/00

CPC classification number: H04W40/24 ,  H04L45/04 ,  H04L45/42

Abstract: Techniques are provided to support roaming of wireless devices in a network such that the wireless devices can keep their Internet Protocol (IP) addresses as they roam within and across mobility sub-domains. When a wireless device roams from one access switch to another access switch, a tunneling endpoint apparatus in the wireless device's home mobility sub-domain is configured to serve as the point of presence for the roamed wireless device. Traffic for the roamed wireless device is tunneled from the access switch where the wireless device has roamed (where it is currently attached) to the tunneling endpoint apparatus. When the wireless device roams across mobility sub-domains, then traffic is tunneled from the access switch where the wireless device is currently attached to the tunneling endpoint apparatus in that mobility sub-domain (called a “foreign” mobility sub-domain) to the tunneling endpoint apparatus in the wireless device's home mobility sub-domain.

Abstract translation: 提供技术以支持网络中的无线设备的漫游，使得无线设备可以在移动性子域内漫游时保持其互联网协议（IP）地址。 当无线设备从一个接入交换机漫游到另一个接入交换机时，无线设备的归属移动性子域中的隧道端点设备被配置为用作漫游无线设备的存在点。 漫游无线设备的业务从无线设备已经漫游（其当前附接的）的接入交换机隧道传送到隧道终端设备。 当无线设备漫游跨越移动性子域时，则将业务从无线设备当前附接到的接入交换机隧道传送到该移动性子域（称为“外部”移动性子域）的隧道端点设备， 隧道终端设备在无线设备的归属移动性子域中。

公开(公告)号：US08774077B2

公开(公告)日：2014-07-08

申请号：US13589695

申请日：2012-08-20

Applicant: Norman W. Finn ,  Robert O'Hara ,  Rohit Suri ,  Joshua Broch

Inventor： Norman W. Finn ,  Robert O'Hara ,  Rohit Suri ,  Joshua Broch

IPC: H04H20/71 ,  H04L12/28 ,  H04W72/04

CPC classification number: H04W72/0446 ,  H04L12/462 ,  H04W4/16 ,  H04W72/0406 ,  H04W72/0426 ,  H04W88/08 ,  H04W92/02

Abstract: In one embodiment, a wireless access point receives a wireless advertisement frame having a source address field that indicates a reachable node being advertised, a destination address field that indicates a destination to which the reachable node is to be advertised, a transmitter address field that indicates a transmitting node from which the wireless advertisement frame is received, and a receiver address field that indicates the access point. The wireless access point then transmits a reflected wireless advertisement frame having a source address field that indicates the reachable node, a destination address field that indicates the destination, a transmitter address field that indicates the wireless access point, and a receiver address field that indicates both a plurality of receivers the reflected wireless advertisement frame is to be accepted by, and a node that is to be excluded from accepting the reflected wireless advertisement frame.

Abstract translation: 在一个实施例中，无线接入点接收具有指示正在通告的可达节点的源地址字段的无线广告帧，指示可通告节点所在的目的地的目的地地址字段，指示 接收无线广告帧的发送节点以及指示接入点的接收方地址字段。 然后，无线接入点发送具有指示可达节点的源地址字段，指示目的地的目的地地址字段，表示无线接入点的发送机地址字段和指示两者的接收机地址字段的反射无线广告帧 反射的无线广告帧将被接收的多个接收器，以及将被排斥以接受反射的无线广告帧的节点。

公开(公告)号：US20120314621A1

公开(公告)日：2012-12-13

申请号：US13589695

申请日：2012-08-20

Applicant: Norman W. Finn ,  Robert O'Hara ,  Rohit Suri ,  Josh Broch

Inventor： Norman W. Finn ,  Robert O'Hara ,  Rohit Suri ,  Josh Broch

IPC: H04W48/08 ,  H04W4/06

CPC classification number: H04W72/0446 ,  H04L12/462 ,  H04W4/16 ,  H04W72/0406 ,  H04W72/0426 ,  H04W88/08 ,  H04W92/02

Abstract: In one embodiment, a wireless access point receives a wireless advertisement frame having a source address field that indicates a reachable node being advertised, a destination address field that indicates a destination to which the reachable node is to be advertised, a transmitter address field that indicates a transmitting node from which the wireless advertisement frame is received, and a receiver address field that indicates the access point. The wireless access point then transmits a reflected wireless advertisement frame having a source address io field that indicates the reachable node, a destination address field that indicates the destination, a transmitter address field that indicates the wireless access point, and a receiver address field that indicates both a plurality of receivers the reflected wireless advertisement frame is to be accepted by, and a node that is to be excluded from accepting the reflected wireless advertisement frame.

Abstract translation: 在一个实施例中，无线接入点接收具有指示正在通告的可达节点的源地址字段的无线广告帧，指示可通告节点所在的目的地的目的地地址字段，指示 接收无线广告帧的发送节点以及指示接入点的接收方地址字段。 然后，无线接入点发送具有指示可达节点的源地址io字段的反射无线广告帧，指示目的地的目的地地址字段，指示无线接入点的发送机地址字段和指示无线接入点的接收方地址字段 反射的无线广告帧将被接收的多个接收器以及要被排除以接受反射的无线广告帧的节点。

公开(公告)号：US20120300756A1

公开(公告)日：2012-11-29

申请号：US13068926

申请日：2011-05-24

Applicant: Vipul Shah ,  Bhanu Gopalasetty ,  Navindra Yadav ,  Sudhir K. Jain ,  Rohit Suri

Inventor： Vipul Shah ,  Bhanu Gopalasetty ,  Navindra Yadav ,  Sudhir K. Jain ,  Rohit Suri

IPC: H04W84/02 ,  H04W4/00

CPC classification number: H04W36/02

Abstract: In one embodiment, a method includes receiving a packet from a source wireless device at a second switch, the source wireless device previously associated with a first switch and roamed to and associated with the second switch, wherein a point of presence for the source wireless device is maintained at the first switch, inserting into the packet a direction indicator, and forwarding the packet from the second switch to the first switch, the direction indicator identifying the packet as being transmitted towards the point of presence for the source wireless device to prevent a forwarding loop. An apparatus is also disclosed.

Abstract translation: 在一个实施例中，一种方法包括在第二交换机处从源无线设备接收分组，所述源无线设备先前与第一交换机相关联并且漫游到第二交换机并且与第二交换机相关联，其中源无线设备的存在点 保持在第一交换机处，将数据包插入方向指示器，并将分组从第二交换机转发到第一交换机，方向指示符将分组标识为向源无线设备的存在点发送以防止 转发循环。 还公开了一种装置。

公开(公告)号：US20110274082A1

公开(公告)日：2011-11-10

申请号：US12773351

申请日：2010-05-04

Applicant: Patrice Calhoun ,  Abhijit Choudhury ,  Rohit Suri ,  Sudhir Jain ,  Bhanu Gopalasetty ,  Navindra Yadav ,  Fusun Ertemalp ,  Kent Leung

Inventor： Patrice Calhoun ,  Abhijit Choudhury ,  Rohit Suri ,  Sudhir Jain ,  Bhanu Gopalasetty ,  Navindra Yadav ,  Fusun Ertemalp ,  Kent Leung

IPC: H04W36/00 ,  H04W40/00

CPC classification number: H04W40/24 ,  H04L45/04 ,  H04L45/42 ,  H04W8/087

Abstract: Techniques are provided to enable support of roaming wireless devices in a network such that the wireless devices can keep their Internet Protocol (IP) addresses as they roam across mobility sub-domains. Traffic for a wireless device that roams is tunneled back to the access switch that serves the IP subnet which includes an IP address for the wireless device. Traffic is tunneled back to that access switch for the wireless device when the wireless device roams to another access switch which does not serve the IP subnet for the wireless device in the same mobility sub-domain and when the wireless device roams to a different mobility sub-domain, in which case the traffic is tunneled between tunneling endpoints in the respective mobility sub-domains.

Abstract translation: 提供技术以支持网络中的漫游无线设备，使得无线设备可以在移动子域漫游时保持其互联网协议（IP）地址。 漫游的无线设备的流量被隧道传回给服务于包含无线设备的IP地址的IP子网的接入交换机。 当无线设备漫游到不为同一移动性子域中的无线设备的IP子网服务的另一个接入交换机以及当无线设备漫游到不同的移动性子网时，业务被隧道传送回无线设备的接入交换机 在这种情况下，流量在相应的移动性子域中的隧道端点之间隧道化。

公开(公告)号：US20110103284A1

公开(公告)日：2011-05-05

申请号：US12612116

申请日：2009-11-04

Applicant: Srinath Gundavelli ,  Abhijit Choudhury ,  Rohit Suri ,  Venkatesh Kanagasabapathy ,  Bhavannarayana Nelakanti ,  Sudhir Jain

Inventor： Srinath Gundavelli ,  Abhijit Choudhury ,  Rohit Suri ,  Venkatesh Kanagasabapathy ,  Bhavannarayana Nelakanti ,  Sudhir Jain

IPC: H04H20/71

CPC classification number: H04L12/189 ,  H04L12/18 ,  H04L12/4641 ,  H04L45/16 ,  H04W28/0226 ,  H04W40/023 ,  H04W40/24 ,  H04W40/248 ,  H04W40/30 ,  H04W84/12

Abstract: Techniques are provided to manage how router advertisement messages are forwarded for ultimate wireless transmission in a wireless network. In one embodiment, a multicast router advertisement message intended for a virtual local area network is converted into individual unicast router advertisement messages directed to specific wireless mobile client devices that are part of that virtual local area network. In another embodiment, router advertisement messages are routed between controllers according to the current location of a wireless mobile client device. In still other embodiments, techniques are provided to minimize the volume of the router advertisement messages sent over a wireless network, and to proactively send a unicast router advertisement message to a mobile client device that has performed a handoff, without waiting for a router solicitation message.

Abstract translation: 提供技术来管理路由器通告消息如何被转发以用于无线网络中的最终无线传输。 在一个实施例中，旨在用于虚拟局域网的多播路由器通告消息被转换成针对作为该虚拟局域网的一部分的特定无线移动客户端设备的单独的单播路由器通告消息。 在另一实施例中，路由器通告消息根据无线移动客户端设备的当前位置在控制器之间路由。 在其他实施例中，提供了技术来最小化通过无线网络发送的路由器通告消息的音量，并且主动地向执行切换的移动客户端设备发送单播路由器通告消息，而不等待路由器请求消息 。

公开(公告)号：US07827270B2

公开(公告)日：2010-11-02

申请号：US12174792

申请日：2008-07-17

Applicant: Allan Thomson ,  David Stephenson ,  Rohit Suri

Inventor： Allan Thomson ,  David Stephenson ,  Rohit Suri

IPC: G06F15/173 ,  G06F15/16

CPC classification number: H04W8/12 ,  H04W8/06 ,  H04W24/04

Abstract: Described in an example embodiment herein is a Mobility Service Engine (MSE) cluster comprising an MSE Cluster Master and at least one MSE Cluster Slave. The MSE Master is configured to define Network Service Segments. The MSE Master of the cluster distributes the Network Service Segments to slaves within the cluster. The network is configured to forward data to the correct Network Service Segment.

Abstract translation: 在本文的示例实施例中描述的是包括MSE群集主机和至少一个MSE群集从站的移动性服务引擎（MSE）群集。 MSE Master被配置为定义网络服务段。 群集的MSE主站将网络服务段分配到群集中的从站。 网络配置为将数据转发到正确的网络服务段。

公开(公告)号：US20090113018A1

公开(公告)日：2009-04-30

申请号：US12174792

申请日：2008-07-17

Applicant: Allan Thomson ,  David Stephenson ,  Rohit Suri

Inventor： Allan Thomson ,  David Stephenson ,  Rohit Suri

IPC: G06F15/16

CPC classification number: H04W8/12 ,  H04W8/06 ,  H04W24/04

Abstract: Described in an example embodiment herein is a Mobility Service Engine (MSE) cluster comprising an MSE Cluster Master and at least one MSE Cluster Slave. The MSE Master is configured to define Network Service Segments. The MSE Master of the cluster distributes the Network Service Segments to slaves within the cluster. The network is configured to forward data to the correct Network Service Segment.

Abstract translation: 在本文的示例实施例中描述的是包括MSE群集主机和至少一个MSE群集从站的移动性服务引擎（MSE）群集。 MSE Master被配置为定义网络服务段。 群集的MSE主站将网络服务段分配到群集中的从站。 网络配置为将数据转发到正确的网络服务段。

公开(公告)号：US08730960B2

公开(公告)日：2014-05-20

申请号：US13280835

申请日：2011-10-25

Applicant: Brian Donald Hart ,  Santosh Pandey ,  Rohit Suri

Inventor： Brian Donald Hart ,  Santosh Pandey ,  Rohit Suri

IPC: H04J3/26 ,  H04H20/71 ,  H04W4/00

CPC classification number: H04L12/1868

Abstract: Described herein are techniques that provide for the transmission of a multicast stream that can resend frames that were not received using the partial state block acknowledgement mechanism. In an example embodiment, an access point reserves a channel for a transmission opportunity of a sufficient length to allow the sending of multicast data, block acknowledgement request, and receipt of a block acknowledgement. Optionally, the transmission opportunity may be of sufficient length to enable packets that re resent to be sent during the transmission opportunity, thereby preventing other stations on the channel from gaining control of the channel. Alternatively the access point may employ an appropriate backoff between TXOPs to AP prevent (T)DLS traffic to the recipients of the multicast stream. The access point does not send any frames from other queues during the transmission opportunity.

Abstract translation: 这里描述了提供可以使用部分状态块确认机制重新发送未被接收的帧的多播流的传输的技术。 在示例实施例中，接入点保留用于具有足够长度的传输机会的信道，以允许多播数据的发送，块确认请求和块确认的接收。 可选地，传输机会可以具有足够的长度以使得在传输机会期间重新发送的分组能够被阻止，从而防止信道上的其他站获得信道的控制。 或者，接入点可以在TXOP到AP之间采用适当的退避，以防止（T）DLS流量到组播流的接收者。 在传输机会期间，接入点不会从其他队列发送任何帧。