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1. 发明申请

US20110270972A1 VIRTUAL TOPOLOGY ADAPTATION FOR RESOURCE OPTIMIZATION IN TELECOMMUNICATION NETWORKS 审中-公开
标题翻译：电信网络资源优化的虚拟拓扑适应
公开(公告)号：US20110270972A1
公开(公告)日：2011-11-03
申请号：US13091906
申请日：2011-04-21
申请人： Biswanath Mukherjee , Pulak Kumar Chowdhury
发明人： Biswanath Mukherjee , Pulak Kumar Chowdhury
IPC分类号： G06F15/173
CPC分类号： H04L41/0896 , H04L41/0833 , H04L45/125 , H04L45/70
摘要： Some embodiments described in this disclosure provide methods and apparatuses for managing a network, e.g., by performing virtual topology adaptation for resource optimization. In some embodiments, a system can monitor traffic on the network to identify heavily loaded and/or lightly loaded links in the network. In response to identifying a lightly loaded link, the system can shift traffic from the lightly loaded link to one or more other links in the network. After the traffic has been shifted, the system can move circuitry associated with the lightly loaded link into a low-power state. In response to identifying a heavily loaded link, the system can activate a new link in the network by moving circuitry associated with the new link from a low-power state into a high-power state. After the new link has been activated, the system can shift traffic from the heavily loaded link to the new link.
摘要翻译：在本公开中描述的一些实施例提供了用于管理网络的方法和装置，例如通过对资源优化进行虚拟拓扑适配。在一些实施例中，系统可以监视网络上的业务，以识别网络中负载重载和/或轻载的链路。响应于识别轻负载的链路，系统可以将从轻负载链路的业务转移到网络中的一个或多个其他链路。在流量被移动之后，系统可以将与轻载链路相关联的电路移动到低功率状态。响应于识别重负载链路，系统可以通过将与新链路相关联的电路从低功率状态移动到高功率状态来激活网络中的新链路。在新链路被激活之后，系统可以将流量从负载重载的链路转移到新链路。

2. 发明授权

US06850487B2 Method and apparatus for guaranteeing a failure-recovery time in a wavelength-division multiplexing network 失效
标题翻译：用于保证波分复用网络中的故障恢复时间的方法和装置
公开(公告)号：US06850487B2
公开(公告)日：2005-02-01
申请号：US10310421
申请日：2002-12-05
申请人： Biswanath Mukherjee , Keyao Zhu , Laxman Sahasrabuddhe
发明人： Biswanath Mukherjee , Keyao Zhu , Laxman Sahasrabuddhe
IPC分类号： H04J14/02 , H04L1/22 , G01R31/08
CPC分类号： H04L1/22 , H04J14/0227 , H04J14/0241 , H04J14/0284 , H04J14/0287
摘要： One embodiment of the present invention provides a system that guarantees a stated failure-recovery time in an optical wavelength-division multiplexing (WDM) network. The system operates by first receiving a request at an ingress node of the WDM network to establish a connection from a source to a destination through the WDM network, wherein the request includes the stated failure-recovery time. The system then calculates a chain of restorable cycles within the WDM network between the ingress node for the source and an egress node for the destination, wherein each cycle in the chain of restorable cycles can guarantee the stated failure-recovery time. Finally, the system selects a section of each restorable cycle to be a primary path between the source and the destination through the restorable cycle.
摘要翻译：本发明的一个实施例提供一种保证光波分复用（WDM）网络中所述的故障恢复时间的系统。该系统首先在WDM网络的入口节点处接收请求，以通过WDM网络建立从源到目的地的连接，其中该请求包括所述的故障恢复时间。然后，该系统计算在源的入口节点和目的地的出口节点之间的WDM网络内的可恢复循环链，其中可恢复循环链中的每个周期可以保证所述的故障恢复时间。最后，系统通过可恢复的循环，将每个可恢复循环的一部分选择为源和目的地之间的主要路径。

3. 发明授权

US06963539B2 Method and apparatus for providing a service level guarantee in a communication network 失效
标题翻译：在通信网络中提供服务水平保证的方法和装置
公开(公告)号：US06963539B2
公开(公告)日：2005-11-08
申请号：US10365311
申请日：2003-02-12
申请人： Biswanath Mukherjee , Jing Zhang , Keyao Zhu
发明人： Biswanath Mukherjee , Jing Zhang , Keyao Zhu
IPC分类号： H04J14/02 , H04L12/56 , H04L1/00 , H04L12/26
CPC分类号： H04L47/822 , H04J14/0227 , H04L45/24 , H04L47/15 , H04L47/70
摘要： One embodiment of the present invention provides a system that provides a guaranteed level of availability in a communication network. During operation, the system receives a connection request that includes a specified reliability. Next, the system determines multiple candidate routes through a network to satisfy the connection request, wherein each of these candidate routes passes through a set of links that form a path through the network. The system then examines the candidate routes to identify a route that meets the specified reliability. The system only accepts the connection request if a route that meets the specified reliability is found.
摘要翻译：本发明的一个实施例提供一种在通信网络中提供有保证的可用性水平的系统。在运行期间，系统收到包含指定可靠性的连接请求。接下来，系统通过网络确定多个候选路由以满足连接请求，其中这些候选路由中的每一个通过形成通过网络的路径的一组链路。然后，系统检查候选路由以识别满足指定可靠性的路由。如果找到满足指定可靠性的路由，系统只接受连接请求。

4. 发明授权

US06792208B1 Method and apparatus for hierarchical optical switching 失效
标题翻译：分层光学切换的方法和装置
公开(公告)号：US06792208B1
公开(公告)日：2004-09-14
申请号：US10205797
申请日：2002-07-26
申请人： Biswanath Mukherjee , Shun Yao
发明人： Biswanath Mukherjee , Shun Yao
IPC分类号： H04J1400
CPC分类号： H04Q11/0062 , H04Q11/0005 , H04Q2011/0075 , H04Q2011/0086
摘要： One embodiment of the present invention provides a system that facilitates optical switching. The system starts by receiving a plurality of optical input signals. The system then divides each of the plurality of optical input signals into a plurality of wavebands that can be carried on a single optical fiber, wherein each waveband includes a predetermined subset of the wavelengths in the optical signal. Once the optical input signals have been divided into wavebands, the wavebands are then routed through a waveband switch. After being routed through the waveband switch, the wavebands are combined to form a plurality of optical output signals, where each optical output signal can possible include wavebands from different optical input signals. Additionally, some of the wavebands can be divided into wavelengths, and the wavelengths can be routed through a wavelength switch or a traffic grooming switch.
摘要翻译：本发明的一个实施例提供了一种便于光切换的系统。系统通过接收多个光输入信号而开始。该系统然后将多个光输入信号中的每一个分成可以在单个光纤上承载的多个波段，其中每个波段包括光信号中的预定波长子集。一旦光输入信号被分成波段，波段然后被路由通过波段开关。在通过波段开关被路由之后，波段被组合以形成多个光输出信号，其中每个光输出信号可能包括来自不同光输入信号的波段。另外，一些波段可以分为波长，并且波长可以通过波长开关或流量梳理开关路由。

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