公开(公告)号：US08724583B2

公开(公告)日：2014-05-13

申请号：US12612131

申请日：2009-11-04

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

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

IPC分类号： H04W4/00

CPC分类号： H04W8/005 ,  H04L41/12 ,  H04W8/26

摘要： Techniques are provided herein to support roaming of wireless mobile client devices from one wireless local area network access point device to another wireless local area network access point device. Neighbor discovery messages are received from wireless mobile client devices. A neighbor discovery message specifies a target address for a neighbor discovery function. A response to a neighbor discovery message is sent to a wireless mobile client device such that the response message appears to have been sent by a wireless mobile client device that has an address that corresponds to the target address of the neighbor discovery message.

摘要翻译： 本文提供了技术来支持将无线移动客户端设备从一个无线局域网接入点设备漫游到另一个无线局域网接入点设备。 从无线移动客户端设备接收邻居发现消息。 邻居发现消息指定邻居发现功能的目标地址。 对邻居发现消息的响应被发送到无线移动客户端设备，使得响应消息看起来已被无线移动客户端设备发送，该无线移动客户端设备具有与邻居发现消息的目标地址相对应的地址。

公开(公告)号：US20110103284A1

公开(公告)日：2011-05-05

申请号：US12612116

申请日：2009-11-04

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

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

IPC分类号： H04H20/71

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

摘要： 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.

摘要翻译： 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：US06950628B1

公开(公告)日：2005-09-27

申请号：US10212193

申请日：2002-08-02

申请人： Robert C. Meier ,  Tim Olson ,  Victor J. Griswold ,  Sheausong Yang ,  Bhavannarayana Nelakanti

发明人： Robert C. Meier ,  Tim Olson ,  Victor J. Griswold ,  Sheausong Yang ,  Bhavannarayana Nelakanti

IPC分类号： G01S19/25 ,  H04L12/28 ,  H04L12/46 ,  H04L29/06 ,  H04B7/00

CPC分类号： H04L63/104 ,  H04L12/4641 ,  H04W4/08 ,  H04W12/08 ,  H04W28/18 ,  H04W72/0426 ,  H04W80/04 ,  H04W84/12

摘要： A method for associating a WSTA to a service set, wherein the service set is configurable at the AP. Each service set is an arbitrary grouping of one or more network service parameters, and is typically configured for either VLAN or proxy mobile IP host. When a wireless station desires to associate with an access point, the wireless station sends a message to the access point, the message containing a SSID. The access point then matches the SSID to a service set and associates the WSTA to either a home subnet or a VLAN based on the SSID. By locally configuring the service set, the default VLAN and home subnet for a WSTA may be different at each AP the WSTA encounters. A security server is configured with a list of allowed SSIDs for each wireless station to prevent unauthorized access to a VLAN or home subnet.

摘要翻译： 一种用于将WSTA与服务集相关联的方法，其中所述服务集可配置在所述AP处。 每个服务集是一个或多个网络服务参数的任意分组，并且通常被配置用于VLAN或代理移动IP主机。 当无线站希望与接入点关联时，无线站向接入点发送消息，该消息包含SSID。 然后，接入点将SSID与服务集匹配，并根据SSID将WSTA与归属子网或VLAN相关联。 通过本地配置服务集，WSTA遇到的每个AP的WSTA的默认VLAN和归属子网可能不同。 配置一个安全服务器，其中列出了每个无线站的允许的SSID，以防止未经授权的访问VLAN或家庭子网。

公开(公告)号：US20110103344A1

公开(公告)日：2011-05-05

申请号：US12612131

申请日：2009-11-04

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

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

IPC分类号： H04W36/00

CPC分类号： H04W8/005 ,  H04L41/12 ,  H04W8/26

摘要： Techniques are provided herein to support roaming of wireless mobile client devices from one wireless local area network access point device to another wireless local area network access point device. Neighbor discovery messages are received from wireless mobile client devices. A neighbor discovery message specifies a target address for a neighbor discovery function. A response to a neighbor discovery message is sent to a wireless mobile client device such that the response message appears to have been sent by a wireless mobile client device that has an address that corresponds to the target address of the neighbor discovery message.

摘要翻译： 本文提供了技术来支持将无线移动客户端设备从一个无线局域网接入点设备漫游到另一个无线局域网接入点设备。 从无线移动客户端设备接收邻居发现消息。 邻居发现消息指定邻居发现功能的目标地址。 对邻居发现消息的响应被发送到无线移动客户端设备，使得响应消息看起来已被无线移动客户端设备发送，该无线移动客户端设备具有与邻居发现消息的目标地址相对应的地址。

公开(公告)号：US07493084B2

公开(公告)日：2009-02-17

申请号：US11106943

申请日：2005-04-15

申请人： Robert C. Meier ,  Tim Olson ,  Victor J. Griswold ,  Sheausong Yang ,  Bhavannarayana Nelakanti

发明人： Robert C. Meier ,  Tim Olson ,  Victor J. Griswold ,  Sheausong Yang ,  Bhavannarayana Nelakanti

IPC分类号： H04B7/00

CPC分类号： H04L63/104 ,  H04L12/4641 ,  H04W4/08 ,  H04W12/08 ,  H04W28/18 ,  H04W72/0426 ,  H04W80/04 ,  H04W84/12

摘要： A method for associating a WSTA to a service set, wherein the service set is configurable at the AP. Each service set is an arbitrary grouping of one or more network service parameters, and is typically configured for either VLAN or proxy mobile IP host. When a wireless station desires to associate with an access point, the wireless station sends a message to the access point, the message containing a SSID. The access point then matches the SSID to a service set and associates the WSTA to either a home subnet or a VLAN based on the SSID. By locally configuring the service set, the default VLAN and home subnet for a WSTA may be different at each AP the WSTA encounters. A security server is configured with a list of allowed SSIDs for each wireless station to prevent unauthorized access to a VLAN or home subnet.

摘要翻译： 一种用于将WSTA与服务集相关联的方法，其中所述服务集可配置在所述AP处。 每个服务集是一个或多个网络服务参数的任意分组，并且通常被配置用于VLAN或代理移动IP主机。 当无线站希望与接入点关联时，无线站向接入点发送消息，该消息包含SSID。 然后，接入点将SSID与服务集匹配，并根据SSID将WSTA与归属子网或VLAN相关联。 通过本地配置服务集，WSTA遇到的每个AP的WSTA的默认VLAN和归属子网可能不同。 配置一个安全服务器，其中列出了每个无线站的允许的SSID，以防止未经授权的访问VLAN或家庭子网。

公开(公告)号：US08687609B2

公开(公告)日：2014-04-01

申请号：US12612116

申请日：2009-11-04

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

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

IPC分类号： H04W4/00

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

摘要： 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.

摘要翻译： 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：US20060019664A1

公开(公告)日：2006-01-26

申请号：US11221237

申请日：2005-09-06

申请人： Bhavannarayana Nelakanti ,  Ian Sayers ,  Paul Long

发明人： Bhavannarayana Nelakanti ,  Ian Sayers ,  Paul Long

IPC分类号： H04Q7/20

CPC分类号： H04W36/14

摘要： A communication system formed by a private wireless network that can be used with public wireless networks using a public wireless protocol, such as GSM, and typically includes public networks, such as PSTN, ISDN and the Internet, using a wired-packet protocol, such as IP. The private network also typically includes a local area network (LAN) and the private network typically connects to the public networks using the wired-packet protocol, such as IP. The public and private wireless networks operate with the same public wireless protocol, such as GSM, and the private wireless network additionally operates with the wired-packet protocol, such as IP. In this environment, multiple wireless cells are present and inter-cell handovers employ multiple protocols including the wired-packet protocol.

公开(公告)号：US20050185626A1

公开(公告)日：2005-08-25

申请号：US11106943

申请日：2005-04-15

申请人： Robert Meier ,  Tim Olson ,  Victor Griswold ,  Sheausong Yang ,  Bhavannarayana Nelakanti

发明人： Robert Meier ,  Tim Olson ,  Victor Griswold ,  Sheausong Yang ,  Bhavannarayana Nelakanti

IPC分类号： G01S19/25 ,  H04L12/28 ,  H04L12/46 ,  H04L29/06 ,  H04Q7/24

CPC分类号： H04L63/104 ,  H04L12/4641 ,  H04W4/08 ,  H04W12/08 ,  H04W28/18 ,  H04W72/0426 ,  H04W80/04 ,  H04W84/12

摘要： A method for associating a WSTA to a service set, wherein the service set is configurable at the AP. Each service set is an arbitrary grouping of one or more network service parameters, and is typically configured for either VLAN or proxy mobile IP host. When a wireless station desires to associate with an access point, the wireless station sends a message to the access point, the message containing a SSID. The access point then matches the SSID to a service set and associates the WSTA to either a home subnet or a VLAN based on the SSID. By locally configuring the service set, the default VLAN and home subnet for a WSTA may be different at each AP the WSTA encounters. A security server is configured with a list of allowed SSIDs for each wireless station to prevent unauthorized access to a VLAN or home subnet.