公开(公告)号：US08937864B2

公开(公告)日：2015-01-20

申请号：US13311656

申请日：2011-12-06

申请人： Arivu Mani Ramasamy ,  Anand Oswal ,  Rajeev Koodli

发明人： Arivu Mani Ramasamy ,  Anand Oswal ,  Rajeev Koodli

IPC分类号： H04J1/16 ,  H04L1/00 ,  G06F15/173 ,  H04L12/801 ,  H04L12/835

CPC分类号： H04L47/10 ,  H04L43/0829 ,  H04L47/30 ,  H04W28/0242

摘要： Channel quality of an airlink is assessed at an edge router of a radio-access communication network. Based on the assessment, the cause of lost data is determined to be due to traffic congestion or due to poor channel quality. In the latter case, congestion recovery/avoidance processes of a transport protocol of over a spliced transport connection can be overridden to avoid unnecessary limitations to data flow.

摘要翻译： 在无线电接入通信网络的边缘路由器处评估空中链路的信道质量。 根据评估，丢失数据的原因是由于交通拥堵或渠道质量差导致的。 在后一种情况下，可以覆盖跨接式传输连接的传输协议的拥塞恢复/回避过程，以避免对数据流的不必要的限制。

公开(公告)号：US08134915B2

公开(公告)日：2012-03-13

申请号：US11954336

申请日：2007-12-12

申请人： Bhaskar Bhupalam ,  Michael Shannon ,  Anand Oswal

发明人： Bhaskar Bhupalam ,  Michael Shannon ,  Anand Oswal

IPC分类号： H04J1/16

CPC分类号： H04L41/0846 ,  H04L41/0836

摘要： According to one embodiment, providing network redundancy includes configuring a session registrant database to have one or more virtual standby states. Each virtual standby state corresponds to an active router. The session registrant database receives session information from the active router(s) and determines that an active router has failed. A virtual standby state corresponding to the failed router is set to a virtual active state. A second router is configured to have a standby state associated with the set virtual active state. The session information received from the failed router is transferred to the second router, and the second router is configured to have an active state.

摘要翻译： 根据一个实施例，提供网络冗余包括配置会话注册者数据库以具有一个或多个虚拟备用状态。 每个虚拟备用状态对应于活动路由器。 会话注册者数据库从活动路由器接收会话信息，并确定活动路由器发生故障。 与故障路由器对应的虚拟备用状态设置为虚拟活动状态。 第二路由器被配置为具有与所设置的虚拟活动状态相关联的待机状态。 从故障路由器接收的会话信息被传送到第二路由器，第二路由器被配置为具有活动状态。

公开(公告)号：US07894334B2

公开(公告)日：2011-02-22

申请号：US12192674

申请日：2008-08-15

申请人： Renhua Wen ,  Alfred C. Lindem, III ,  Anand Oswal ,  Sachin Desai ,  Chandru Sargor

发明人： Renhua Wen ,  Alfred C. Lindem, III ,  Anand Oswal ,  Sachin Desai ,  Chandru Sargor

IPC分类号： H04L1/00

CPC分类号： H04L41/044

摘要： A method and apparatus for hierarchical redundancy for a distributed control plane. In one embodiment of the invention, control plane processes are distributed among a plurality of processing entities including an active primary control processing entity and multiple secondary processing entities. Each of the secondary processing entities performs a dual role; an active role and a standby role. An application redundancy manager (ARM) instantiated on the active primary control processing entity manages the redundancy services for the secondary processing entities. For each secondary processing entity, the ARM selects one of the secondary processing entities to act as a backup for another one of the secondary processing entities. Upon a failure of one of the secondary processing entities, the ARM causes the secondary processing entity backing up the failed secondary processing entity to transition its standby role to an active role regarding the services provided by the failed secondary processing entity.

摘要翻译： 一种用于分布式控制平面的分级冗余的方法和装置。 在本发明的一个实施例中，控制平面过程分布在多个处理实体中，包括主动主控制处理实体和多个辅助处理实体。 每个二级处理实体都具有双重作用; 积极的角色和备用角色。 在活动主控制处理实体上实例化的应用冗余管理器（ARM）管理辅助处理实体的冗余服务。 对于每个二级处理实体，ARM选择一个辅助处理实体作为另一个辅助处理实体的备份。 在二级处理实体之一发生故障时，ARM使辅助处理实体备份故障的辅助处理实体将其备用角色转换为关于由故障的二级处理实体提供的服务的主动角色。

公开(公告)号：US20070253434A1

公开(公告)日：2007-11-01

申请号：US11380950

申请日：2006-05-01

申请人： Anand Oswal ,  Michael Shannon ,  Jayaraman Iyer

发明人： Anand Oswal ,  Michael Shannon ,  Jayaraman Iyer

IPC分类号： H04L12/56

CPC分类号： H04W40/24 ,  H04L45/00 ,  H04L45/28

摘要： Facilitating a graceful restart operation includes initiating the graceful restart operation at a gateway of an access service network. A graceful restart request is sent to a helper device. The graceful restart request requests that the helper device recognize the gateway as adjacent during a specified grace period. If the helper device supports the graceful restart operation, information is received from the helper device in response to the graceful restart request. The graceful restart operation is terminated.

摘要翻译： 促进平滑重启操作包括在接入业务网络的网关启动平滑重启操作。 向辅助设备发送一个优雅的重新启动请求。 正常重新启动请求请求在指定的宽限期内帮助设备将网关识别为相邻网关。 如果辅助设备支持平滑重启操作，则响应于正常的重启请求，从辅助设备接收到信息。 正常的重新启动操作终止。

公开(公告)号：US20070249334A1

公开(公告)日：2007-10-25

申请号：US11707747

申请日：2007-02-16

申请人： Anand Oswal ,  Timothy Stammers ,  Jayaraman Iyer ,  Parviz Yegani

发明人： Anand Oswal ,  Timothy Stammers ,  Jayaraman Iyer ,  Parviz Yegani

IPC分类号： H04Q7/20 ,  H04M1/00

CPC分类号： H04W72/04 ,  H04W28/16 ,  H04W88/16 ,  H04W92/02

摘要： Particular embodiments provide an access gateway that facilitates communication between a plurality of access technologies. The access gateway facilitates data communication with an access terminal through a bearer path. A radio resource manager is configured to provide radio resource management functions for the communications. The radio resource manager is decoupled from the bearer path and provides control of radio transmission characteristics for the bearer path to the gateway. Because the radio resource manager is not in the bearer path, the access gateway may be access technology agnostic. Thus, the access gateway does not need to have access-specific modules based on the radio technology for each bearer path.

摘要翻译： 具体实施例提供了便于多个接入技术之间的通信的接入网关。 接入网关便于通过承载路径与接入终端的数据通信。 无线资源管理器被配置为为通信提供无线电资源管理功能。 无线电资源管理器与载体路径解耦，并提供对网关承载路径的无线电传输特性的控制。 由于无线电资源管理器不在承载路径中，因此接入网关可能与无线技术无关。 因此，接入网关不需要基于用于每个承载路径的无线电技术的访问专用模块。

公开(公告)号：US20070202873A1

公开(公告)日：2007-08-30

申请号：US11708126

申请日：2007-02-16

申请人： Parviz Yegani ,  Timothy Stammers ,  Jayaraman Iyer ,  Anand Oswal

发明人： Parviz Yegani ,  Timothy Stammers ,  Jayaraman Iyer ,  Anand Oswal

IPC分类号： H04Q7/20

CPC分类号： H04W8/065 ,  H04L63/08 ,  H04L63/0892 ,  H04W12/06 ,  H04W80/04

摘要： Particular embodiments provide an optimal allocation of a bearer manager or home agent. In one embodiment, a message is received from a mobile node requesting access to a visiting network that is different from a home network for the mobile node. An authentication request is sent to the home network requesting authentication for access. The authentication request indicates that a home agent has not been assigned. The home AAA server then sends a response that indicates the visiting AAA server can assign a home agent for the mobile node. The visiting AAA server then assigns a home agent that is optimally determined. The visiting home agent is different from a home agent that is found in the mobile node's home network. When a registration request is received, an IP gateway may send the registration request to the visiting home agent, which may not be sent back to the home network.

摘要翻译： 特定实施例提供承载管理器或归属代理的最佳分配。 在一个实施例中，从移动节点接收请求访问不同于移动节点的归属网络的访问网络的消息。 认证请求被发送到家庭网络，请求认证进行访问。 认证请求表示没有分配归属代理。 然后，归属AAA服务器发送响应，其指示访问AAA服务器可以为移动节点分配归属代理。 然后，访问的AAA服务器分配最佳确定的归属代理。 访问归属代理与在移动节点的家庭网络中找到的归属代理不同。 当接收到注册请求时，IP网关可以将该注册请求发送到访问归属代理，该归属代理可能不被发送回家庭网络。

公开(公告)号：US20070014256A1

公开(公告)日：2007-01-18

申请号：US11180824

申请日：2005-07-12

申请人： Francois Le Faucheur ,  Kent Leung ,  Jayaraman Iyer ,  Viren Malaviya ,  Anand Oswal ,  David Lindert

发明人： Francois Le Faucheur ,  Kent Leung ,  Jayaraman Iyer ,  Viren Malaviya ,  Anand Oswal ,  David Lindert

IPC分类号： H04Q7/00 ,  H04Q7/24

CPC分类号： H04W76/12 ,  H04W28/26 ,  H04W80/04

摘要： Requesting a network resource includes facilitating a communication session between a mobile node and an endpoint. A trigger event is received at a first anchor point associated with the mobile node. The trigger event indicates that reservation of a network resource is being requested for the communication session. A second anchor point associated with the endpoint is identified. Reservation of the network resources for the communication sessions is initiated over a tunnel between the first anchor point and the second anchor point.

摘要翻译： 请求网络资源包括促进移动节点和端点之间的通信会话。 在与移动节点相关联的第一锚点处接收到触发事件。 触发事件表示正在为通信会话请求网络资源的预留。 识别与端点相关联的第二锚点。 用于通信会话的网络资源的预留通过第一锚点和第二锚点之间的隧道启动。

公开(公告)号：US20060271780A1

公开(公告)日：2006-11-30

申请号：US11137597

申请日：2005-05-25

申请人： Anand Oswal ,  Jayaraman Iyer ,  Liming Wei

发明人： Anand Oswal ,  Jayaraman Iyer ,  Liming Wei

IPC分类号： H04L9/00

CPC分类号： H04L9/0833 ,  H04L63/065 ,  H04L63/102 ,  H04L2209/60 ,  H04L2209/80

摘要： Providing a multicast service to a mobile node includes receiving a first request to join a multicast group from a first cell site. The first request requests that a first mobile node be permitted to join the multicast group. A first multicast source operable to provide content to the first mobile node is identified. The multicast group and the first multicast source are associated to yield a first group-source combination. A first key is assigned to the first group-source combination, and the first key is provided to the first cell site.