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11. 发明授权

US08873948B2 Method and apparatus for optical path validation in an optical network 有权
标题翻译：光网络中光路验证的方法和装置
公开(公告)号：US08873948B2
公开(公告)日：2014-10-28
申请号：US13095053
申请日：2011-04-27
申请人： Diego Caviglia , Giulio Bottari , Daniele Ceccarelli
发明人： Diego Caviglia , Giulio Bottari , Daniele Ceccarelli
IPC分类号： H04B10/08 , H04J14/02
CPC分类号： H04J14/0227 , H04J14/0257 , H04J14/0267 , H04J14/0268 , H04J14/0269 , H04J14/0271
摘要： A border node of an optical network receives optical channel traffic parameter(s) associated with an optical channel from an optical channel originator external to the optical network. The received parameters are used to determine the suitability of at least one optical path within the optical network for an externally originating optical channel. If a suitable optical path is determined, an optical channel availability message indicating the availability at the border node of an optical path within the optical network for the optical channel is sent to the optical channel originator. The optical channel originator determines an available optical channel status of the optical channel from the received optical channel availability message for the optical channel.
摘要翻译：光网络的边界节点从光网络外部的光信道发起方接收与光信道相关联的光信道业务参数。所接收的参数用于确定光网络内至少一个光路对于外部发起的光信道的适用性。如果确定了合适的光路，则向光信道发起者发送指示在光信道的光网络内的光路的边界节点的可用性的光信道可用性消息。光信道发起者根据接收到的光信道的光信道可用性消息确定光信道的可用光信道状态。

12. 发明申请

US20130163981A1 SIGNALLING IN OPTICAL TRANSMISSION NETWORKS 有权
标题翻译：信号传输网络中的信号
公开(公告)号：US20130163981A1
公开(公告)日：2013-06-27
申请号：US12994366
申请日：2010-07-23
申请人： Daniele Ceccarelli , Diego Caviglia , Giulio Bottari
发明人： Daniele Ceccarelli , Diego Caviglia , Giulio Bottari
IPC分类号： H04B10/038
CPC分类号： H04B10/038 , H04J14/0212 , H04J14/0221 , H04J14/0258 , H04J14/0267 , H04J14/0268 , H04J14/0289 , H04J14/0293 , H04Q2213/1301
摘要： A connection-oriented optical network (2) comprises nodes (10) and optical links (5) between nodes. Each node (10) has a power control unit (60) for controlling an optical amplifier (43) at the node. A node, in response to a requirement to set up a new connection in the network, signals to a power control unit (60) at each of a plurality of downstream nodes along a path of the new connection to cause the power control unit at the node to adjust the optical amplifier at the node to support a new optical channel to carry the new connection. The node (10) can signal to tear down an existing connection in a similar way. A downstream node determines a number of optical channels for which the optical amplifier can be adjusted concurrently, based on an existing number of active optical channels.
摘要翻译：面向连接的光网络（2）包括节点（10）和节点之间的光链路（5）。每个节点（10）具有用于控制节点处的光放大器（43）的功率控制单元（60）。响应于在网络中建立新连接的要求，节点向沿着新连接的路径的多个下游节点中的每一个处的功率控制单元（60）发信号，以使功率控制单元处于节点调整节点处的光放大器，以支持新的光通道携带新连接。节点（10）可以以类似的方式发信号通知现有的连接。下游节点基于现有的有效光信道数，确定可以同时调整光放大器的光信道数。

13. 发明申请

US20110004455A1 Designing a Network 审中-公开
公开(公告)号：US20110004455A1
公开(公告)日：2011-01-06
申请号：US12678278
申请日：2008-09-24
申请人： Diego Caviglia , Giulio Bottari
发明人： Diego Caviglia , Giulio Bottari
IPC分类号： G06F17/50
CPC分类号： H04L41/145 , H04L41/12
摘要： A method of designing a network given a set of network nodes, a set of adjacencies defining which nodes can be connected together directly and so are topologically adjacent and a traffic matrix comprising a plurality of entries each indicating a source node, a destination node and a number being the number of connections from the source node to the destination node that are to be present in the network; the method comprising the steps of: simulating the network nodes and the adjacencies thereof to generate a simulated network; simulating applying the traffic matrix entry by entry, each application of an entry causing a number of links consistent with the entry to be simulated between the source and destination nodes indicated in the entry, via a chain of topologically adjacent nodes; simulating the effect of at least one failure on the simulated network, including simulating the re-routing of the links onto a replacement chain where the chain is broken; determining the number of links between each pair of topologically adjacent nodes; repeating these steps for a plurality of iterations, the order in which the entries in the traffic matrix and the faults are applied being different in different iterations; for each iteration and for each topologically adjacent pair of nodes, determining an average number of links between the pair of nodes for all iterations so far; for each iteration and for each pair of topologically adjacent pair of nodes, determining a variance in the average number of links for all iterations so far; for each iteration, determining an average variance in the average number of links for all iterations so far, the average being taken across the entire network; for each iteration, determining a variance in the variances in the average number of links for all iterations so far, the variance being taken across the entire network; determining when to cease iterating based upon the variance in the variances in the average number of links.

14. 发明申请

US20150249549A1 ENCAPSULATING CPRI FRAMES 有权
标题翻译：封装CPRI框架
公开(公告)号：US20150249549A1
公开(公告)日：2015-09-03
申请号：US14408794
申请日：2012-07-23
申请人： Riccardo Martinotti , Diego Caviglia , Giulio Bottari
发明人： Riccardo Martinotti , Diego Caviglia , Giulio Bottari
IPC分类号： H04L12/46 , H04L12/939
CPC分类号： H04L12/4633 , H04L49/555
摘要： A Common Public Radio Interface (CPRI) link involves using a protocol stack having a CPRI layer and an emulation layer to emulate a point to point link, to enable the CPRI link to operate over a packet switched network. The emulation layer can be a pseudowire emulation which encapsulates multiple CPRI frames in a packet with overhead. A multiplexing layer such as Internet Protocol (IP) or Multiprotocol Label Switching (MPLS) can be used, for sending the packet over an Ethernet network. The usual need for a point to point infrastructure for the CPRI link can be avoided and the CPRI link can be implemented over more complex but usually cheaper packet networks, thus reducing costs or enabling more widespread application over existing packet networks. This applies whether the packet network is dedicated to the CPRI link, or shared with other packets. It can be useful for distributed radio base stations.
摘要翻译：通用公共无线电接口（CPRI）链路涉及使用具有CPRI层和仿真层的协议栈来模拟点对点链路，以使得CPRI链路能够通过分组交换网络进行操作。仿真层可以是在具有开销的分组中封装多个CPRI帧的伪线仿真。可以使用诸如因特网协议（IP）或多协议标签交换（MPLS）的复用层，用于通过以太网发送分组。可以避免对CPRI链路的点对点基础设施的通常需要，并且可以通过更复杂但通常更便宜的分组网络来实现CPRI链路，从而降低成本或使现有分组网络上的应用更广泛。这适用于分组网络是专用于CPRI链路还是与其他分组共享。这对于分布式无线电基站是有用的。

15. 发明授权

US09838217B2 Encapsulating CPRI frames 有权
公开(公告)号：US09838217B2
公开(公告)日：2017-12-05
申请号：US14408794
申请日：2012-07-23
申请人： Riccardo Martinotti , Giulio Bottari , Diego Caviglia
发明人： Riccardo Martinotti , Giulio Bottari , Diego Caviglia
IPC分类号： H04L12/26 , H04L12/46 , H04L12/939
CPC分类号： H04L12/4633 , H04L49/555
摘要： A Common Public Radio Interface (CPRI) link involves using a protocol stack having a CPRI layer and an emulation layer to emulate a point to point link, to enable the CPRI link to operate over a packet switched network. The emulation layer can be a pseudowire emulation which encapsulates multiple CPRI frames in a packet with overhead. A multiplexing layer such as Internet Protocol (IP) or Multiprotocol Label Switching (MPLS) can be used, for sending the packet over an Ethernet network. The usual need for a point to point infrastructure for the CPRI link can be avoided and the CPRI link can be implemented over more complex but usually cheaper packet networks, thus reducing costs or enabling more widespread application over existing packet networks. This applies whether the packet network is dedicated to the CPRI link, or shared with other packets. It can be useful for distributed radio base stations.

16. 发明授权

US09462358B2 Apparatus and method for an optical network 有权
标题翻译：光网络的装置和方法
公开(公告)号：US09462358B2
公开(公告)日：2016-10-04
申请号：US14239308
申请日：2011-10-12
申请人： Diego Caviglia , Giulio Bottari , Riccardo Martinotti
发明人： Diego Caviglia , Giulio Bottari , Riccardo Martinotti
IPC分类号： H04J14/02 , H04Q11/00
CPC分类号： H04Q11/0005 , H04J14/02 , H04J14/0212 , H04J14/0284 , H04J14/0294 , H04Q2011/0016 , H04Q2011/0037
摘要： An optical network is configured to provide an optical reroute over a backup path (2139) during a failure in a signal path (2133). The network comprises a first node (B). A second node (C) is coupled to receive a signal from the first node (B) via the signal path (2133), and a backup signal via the backup path (2139). The network is adapted to transmit a signal and a corresponding backup signal from the first node to the second node even when there is no failure in the signal path (2133), wherein the backup signal is blocked at the second node (C) when there is no failure in the signal path (2133). Embodiments of the invention utilize the broadcast and blocking functionalities of a wavelength selective switch (WSS) device. Such WSS devices enable, in the case of a failure of a link, the fast switchover of optical traffic onto local detours within a reduced time.
摘要翻译：光网络被配置为在信号路径（2133）中的故障期间在备用路径（2139）上提供光学重新路由。网络包括第一节点（B）。第二节点（C）被耦合以经由信号路径（2133）从第一节点（B）接收信号，以及经由备用路径（2139）的备用信号。即使在信号路径（2133）中没有故障的情况下，该网络适于将信号和对应的备份信号从第一节点发送到第二节点，其中当第二节点（C））在第二节点（C）处阻止备份信号在信号路径中没有故障（2133）。本发明的实施例利用波长选择开关（WSS）装置的广播和阻塞功能。在链路故障的情况下，这样的WSS设备能够在减少的时间内快速地切换光流量到本地绕行。

17. 发明申请

US20140294383A1 Apparatus and Method For an Optical Network 有权
标题翻译：光网络的装置和方法
公开(公告)号：US20140294383A1
公开(公告)日：2014-10-02
申请号：US14239308
申请日：2011-10-12
申请人： Diego Caviglia , Giulio Bottari , Riccardo Martinotti
发明人： Diego Caviglia , Giulio Bottari , Riccardo Martinotti
IPC分类号： H04Q11/00 , H04J14/02
CPC分类号： H04Q11/0005 , H04J14/02 , H04J14/0212 , H04J14/0284 , H04J14/0294 , H04Q2011/0016 , H04Q2011/0037
摘要： An optical network is configured to provide an optical reroute over a backup path (2139) during a failure in a signal path (2133). The network comprises a first node (B). A second node (C) is coupled to receive a signal from the first node (B) via the signal path (2133), and a backup signal via the backup path (2139). The network is adapted to transmit a signal and a corresponding backup signal from the first node to the second node even when there is no failure in the signal path (2133), wherein the backup signal is blocked at the second node (C) when there is no failure in the signal path (2133). Embodiments of the invention utilize the broadcast and blocking functionalities of a wavelength selective switch (WSS) device. Such WSS devices enable, in the case of a failure of a link, the fast switchover of optical traffic onto local detours within a reduced time.
摘要翻译：光网络被配置为在信号路径（2133）中的故障期间在备用路径（2139）上提供光学重新路由。网络包括第一节点（B）。第二节点（C）被耦合以经由信号路径（2133）从第一节点（B）接收信号，以及经由备用路径（2139）的备用信号。即使在信号路径（2133）中没有故障的情况下，该网络适于将信号和对应的备份信号从第一节点发送到第二节点，其中当第二节点（C））备份信号在第二节点在信号路径中没有故障（2133）。本发明的实施例利用波长选择开关（WSS）装置的广播和阻塞功能。在链路故障的情况下，这样的WSS设备能够在减少的时间内快速地切换光流量到本地绕行。

18. 发明申请

US20120321297A1 ROUTING AND VALIDATION OF PATHS IN A WAVELENGTH SWITCHED OPTICAL NETWORK 审中-公开
标题翻译：波长切换光网络中路由的路由和验证
公开(公告)号：US20120321297A1
公开(公告)日：2012-12-20
申请号：US13516224
申请日：2009-12-14
申请人： Giulio Bottari , Diego Caviglia
发明人： Giulio Bottari , Diego Caviglia
IPC分类号： H04B10/08
CPC分类号： H04Q11/0062 , H04J14/021 , H04J14/0212 , H04J14/0221 , H04J14/0257 , H04J14/0258 , H04J14/026 , H04J14/0269 , H04J14/0271 , H04J14/0284 , H04L41/32 , H04L45/00 , H04L45/123 , H04L45/62 , H04Q2011/0064 , H04Q2011/0073 , H04Q2011/0086
摘要： A network comprises nodes connected by optical sections. The nodes support a plurality of traffic types. A candidate optical path having a first traffic type is selected as a routing for at least part of the connection on the basis of at least one routing metric. Pre-computed parameters are retrieved for the optical sections of the candidate optical path. The pre-computed parameters are indicative of quality of transmission along the optical section for the first traffic type. A quality of transmission is determined along the candidate optical path using the retrieved parameters. The pre-computed parameters for each of the optical sections can be used at a network planning tool and then exported to a network management system or a path computation entity at a node for creating a validation module for use in validating connections across the optical transmission network.
摘要翻译：网络包括通过光学部分连接的节点。节点支持多种流量类型。基于至少一个路由度量，选择具有第一业务类型的候选光路作为至少部分连接的路由。为候选光路的光学部分检索预先计算的参数。预先计算的参数表示沿着第一交通类型的光学部分的传输质量。使用所检索的参数沿候选光路确定传输质量。每个光学部分的预先计算的参数可以在网络规划工具中使用，然后被导出到节点处的网络管理系统或路径计算实体，用于创建验证模块，以用于验证跨越光传输网络的连接。

19. 发明申请

US20140328159A1 Recovery of Split Architecture Control Plane 审中-公开
标题翻译：拆分架构控制平面的恢复
公开(公告)号：US20140328159A1
公开(公告)日：2014-11-06
申请号：US14361368
申请日：2011-11-29
申请人： Paolo Rebella , Diego Caviglia , Daniele Ceccarelli
发明人： Paolo Rebella , Diego Caviglia , Daniele Ceccarelli
IPC分类号： H04L12/24
CPC分类号： H04L41/0672 , H04L41/0213 , H04L41/042 , H04L41/0654 , H04L41/0873 , H04L41/0893 , H04L45/28
摘要： A method of operating a control plane having a centralised network management system (10), control domain servers (20) and a plurality of forwarding elements (30), for controlling respective network entities (L2), and grouped into control domains (21, 22, 23). Each domain has a control domain server. Automatic checking for inconsistencies (110, 115, 210, 310, 320, 450) between the records held at the different parts of the control plane, involves comparing checklists of the records of the circuits stored at the different parts of the control plane. If an inconsistency is found, there is automatic updating (120, 220, 230, 460) of the records using a copy sent from another of the parts of the control plane. The checklists can avoid the need to forwarding entire copies.
摘要翻译：一种操作具有集中式网络管理系统（10），控制域服务器（20）和多个转发元件（30）的控制平面的方法，用于控制各个网络实体（L2），并分组成控制域 22,23）。每个域都有一个控制域服务器。在控制平面的不同部分之间记录的不一致（110,115,210,310,320,450）的自动检查涉及比较存储在控制平面的不同部分的电路记录的清单。如果发现不一致，则使用从控制平面的其他部分发送的副本自动更新记录（120,220,230,460）。检查单可以避免转发整个副本的需要。

20. 发明授权

US08850014B2 Handling failure of request message during set up of label switched path 有权
标题翻译：在设置标签交换路径时处理请求消息的故障
公开(公告)号：US08850014B2
公开(公告)日：2014-09-30
申请号：US12994318
申请日：2010-06-14
申请人： Daniele Ceccarelli , Diego Caviglia , Francesco Fondelli
发明人： Daniele Ceccarelli , Diego Caviglia , Francesco Fondelli
IPC分类号： G06F15/173 , H04L29/06 , H04L12/913 , H04L12/723 , H04L12/701 , H04L12/54 , H04L12/911
CPC分类号： H04L47/724 , H04L12/5691 , H04L45/00 , H04L45/50 , H04L47/825 , H04L69/14
摘要： Setting up a label switched path (LSP) for traffic between nodes of a network, involves sending a request message requesting reservation of resources for the requested LSP, from an ingress node (10) via intermediate nodes (40) and returning an acknowledgement message to an upstream node along the path. Absence of an acknowledgement from the downstream node, that the request message was received, is detected. Whether the given node should react to the detected absence can be determined from an indication (R) in the request message. Thus other nodes can react more quickly to take remedial action, to reroute or to remove the resource reservations without a long wait for a time out or a refresh message from the waiting ingress node, to enable more efficient use of the resources.
摘要翻译：为网络节点之间的业务建立标签交换路径（LSP），涉及从入节点（10）经由中间节点（40）发送请求预留所请求的LSP的资源的请求消息，并将确认消息返回给沿着路径的上游节点。检测到从下游节点没有接收到请求消息的确认。是否可以根据请求消息中的指示（R）确定给定节点对检测到的不存在的响应。因此，其他节点可以更快地作出反应，采取补救措施，重新路由或删除资源预留，而不需要等待超时或等待的入口节点的刷新消息，才能更有效地利用资源。

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