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1. 发明授权

US09112629B2 Configuration of synchronisation network having synchronization trails for time sync and frequency sync 有权
标题翻译：具有用于时间同步和频率同步的同步轨迹的同步网络的配置
公开(公告)号：US09112629B2
公开(公告)日：2015-08-18
申请号：US13516363
申请日：2010-01-18
申请人： Stefano Ruffini , Raoul Fiorone , Sergio Lanzone , Orazio Toscano
发明人： Stefano Ruffini , Raoul Fiorone , Sergio Lanzone , Orazio Toscano
IPC分类号： H04J3/06
CPC分类号： H04J3/0679 , H04J3/0641
摘要： Configuring a node (410) of a synchronization network involves identifying (10) possible alternative time synchronization trails arranged to carry time synchronization information for time synchronization at the node, and possible alternative frequency trails, arranged to carry frequency synchronization information for frequency synchronization at the node. Using information about the sources (20), a comparison of the trails (30) is biased to increase a likelihood of choosing time synchronization and frequency trails which share the same source, over a likelihood of choosing trails with different sources. This can help avoid divergence and consequent bit errors arising from phase errors, resulting from trails having different sources. It can encompass for example changing both to a new common source, or changing one or both trails while still using the old common source.
摘要翻译：配置同步网络的节点（410）涉及识别（10）布置为携带用于节点处的时间同步的时间同步信息的可能的备选时间同步轨迹，以及可能的替代频道，其被布置为携带用于频率同步的频率同步信息节点。使用关于源（20）的信息，对于选择具有不同来源的路径的可能性，路径（30）的比较被偏置以增加选择共享相同源的时间同步和频道的可能性。这可以帮助避免由于具有不同来源的路径导致的相位误差产生的分歧和相应的位错误。它可以包括例如将两者都改为新的公共源，或者改变一个或两个路径，同时仍然使用旧的公共源。

2. 发明申请

US20140219651A1 Apparatus and Method for a Passive Optical Network 审中-公开
标题翻译：一种无源光网络的装置与方法
公开(公告)号：US20140219651A1
公开(公告)日：2014-08-07
申请号：US14130893
申请日：2011-12-15
申请人： Stefano Ruffini , Filippo Ponzini
发明人： Stefano Ruffini , Filippo Ponzini
IPC分类号： H04B10/25 , H04J14/02 , H04B10/077
CPC分类号： H04B10/2503 , H04B10/0775 , H04B10/272 , H04J14/02 , H04J14/0227 , H04J14/0246 , H04J14/025 , H04J14/0265 , H04J14/0273 , H04J14/0282 , H04J2014/0253 , H04L25/4904 , H04W92/12
摘要： A passive optical network comprises a first node configured to transmit a downlink data signal over a communication channel of an optical link, the communication channel having a first wavelength, and a second node configured to transmit an uplink data signal over the optical link using the communication channel having the first wavelength. The first node and/or the second node is adapted to perform at least one monitoring measurement on the communication channel having the first wavelength, and provide monitoring information, comprising the at least one monitoring measurement, in a monitoring channel. Common public radio interface (CPRI) traffic can therefore be transported over an optical transport network (OTN), by using a frequency reuse technique to provide a symmetrical bi-directional communication link between a first node and a second node, and using a frame structure of the optical transport network to provide a monitoring channel.
摘要翻译：无源光网络包括被配置为通过光链路的通信信道发送下行链路数据信号的第一节点，所述通信信道具有第一波长，以及第二节点，被配置为使用所述通信在所述光链路上发送上行链路数据信号通道具有第一波长。第一节点和/或第二节点适于在具有第一波长的通信信道上执行至少一个监视测量，并且在监视信道中提供包括所述至少一个监视测量的监视信息。因此，通过使用频率重用技术在第一节点和第二节点之间提供对称的双向通信链路，并且使用帧结构，通过公共无线电接口（CPRI）业务可以通过光传输网络（OTN）传输的光传输网络提供监控通道。

3. 发明申请

US20120287948A1 CONFIGURATION OF SYNCHRONISATION NETWORK 有权
标题翻译：同步网络的配置
公开(公告)号：US20120287948A1
公开(公告)日：2012-11-15
申请号：US13508406
申请日：2010-01-18
申请人： Stefano Ruffini , Giulio Bottari , Manuel Nardelli
发明人： Stefano Ruffini , Giulio Bottari , Manuel Nardelli
IPC分类号： H04J3/06
CPC分类号： H04J3/0658 , H04J3/0641 , H04J3/0682
摘要： Configuring a node (410, A-I, L-O) of a synchronization network, involves determining information about synchronization sources of a plurality of synchronization trails for passing synchronization information from the synchronization source (A, L, O, PRC) to the node to provide a synchronization reference. After determining automatically (210, 230, 330, 335, 340) synchronization transmission characteristics of trails (EF, FG, GH, HM, MN, OF, FI, IH) which use packet-based communication, the trails are compared automatically (240, 370), using their source information and their synchronization transmission characteristics, for selecting which of these trails to use for providing the synchronization reference for the node (N). Compared to selections made based on source alone, using the synchronization transmission characteristics of the packet based parts can enable a better choice of trail, and can enable comparison with synchronous type trails, and so enable hybrid synchronization networks to be configured and maintained.
摘要翻译：配置同步网络的节点（410，AI，LO）涉及确定关于用于将同步信息从同步源（A，L，O，PRC）传递到节点的多个同步轨迹的同步源的信息，以提供同步参考。在使用基于分组通信的路径（EF，FG，GH，HM，MN，OF，FI，IH）的自动确定（210,230,330,335,340）同步传输特性之后，路径被自动比较（240 ，370），使用其源信息及其同步传输特性，用于选择用于为节点（N）提供同步参考的这些路径中的哪些路径。与基于源的选择相比，使用基于分组的部件的同步传输特性可以更好地选择跟踪，并且可以与同步类型跟踪进行比较，从而使得能够配置和维护混合同步网络。

4. 发明申请

US20120027146A1 CLOCK RECOVERY IN A COMMUNICATIONS NETWORK 审中-公开
标题翻译：通讯网络中的时钟恢复
公开(公告)号：US20120027146A1
公开(公告)日：2012-02-02
申请号：US13202247
申请日：2009-02-24
申请人： Robert Hodge , Stefano Ruffini
发明人： Robert Hodge , Stefano Ruffini
IPC分类号： H04L7/00
CPC分类号： H04J3/0664
摘要： The invention relates in general to clock recovery in a communications network, and in particular to clock recovery in a packet based communications network. Methods and apparatus are disclosed for determining a client timing signal 64, 70 for at least one client device 18, 20, 22, 54, 56, 92, 94, 96 at a master device 24, 58, 98. The client timing signal is compared 126 with a reference timing signal 76 of the master device. A timing difference value 36 is then determined 128 between the client timing signal and the reference timing signal. At least one packet indicative of the timing difference value is transmitted 130 from the master device 24, 58, 98 for receipt by the at least one client device for adjusting the client timing signal at the at least one client device.
摘要翻译：本发明一般涉及通信网络中的时钟恢复，尤其涉及基于分组的通信网络中的时钟恢复。公开了用于在主设备24,58,98处为至少一个客户端设备18,20,22,54,56,92,94,96确定客户定时信号64,70的方法和设备。客户定时信号是与主设备的参考定时信号76进行比较126。然后在客户端定时信号和参考定时信号之间确定128定时差值36。从主设备24,58,98发送指示定时差值的至少一个分组，以便由至少一个客户端设备接收用于在至少一个客户端设备处调整客户端定时信号。

5. 发明授权

US06636987B1 Method and device for determining a synchronization fault in a network node 有权
标题翻译：用于确定网络节点中的同步故障的方法和设备
公开(公告)号：US06636987B1
公开(公告)日：2003-10-21
申请号：US09645570
申请日：2000-08-25
申请人： Stefano Ruffini
发明人： Stefano Ruffini
IPC分类号： G06F1100
CPC分类号： H04J3/0688 , H03L7/08 , H04L7/033
摘要： The present invention relates to a method and device for determining a synchronization fault in a synchronization network, where values of a clock control parameter associated with the synchronization control in a node are compared with a predicted mask value for said clock control parameter, and a synchronization fault is determined if one or more of the measured values lies outside of the predicted mask.
摘要翻译：本发明涉及一种用于确定同步网络中的同步故障的方法和装置，其中与节点中的同步控制相关联的时钟控制参数的值与用于所述时钟控制参数的预测屏蔽值进行比较，并且同步如果一个或多个测量值位于预测掩模之外，则确定故障。

6. 发明申请

US20150139663A1 DISTRIBUTING CLOCK SYNCHRONIZATION INORMATION WITHIN AN OPTICAL COMMUNICATIONS NETWORK 有权
标题翻译：在光通信网络中分配时钟同步信号
公开(公告)号：US20150139663A1
公开(公告)日：2015-05-21
申请号：US14403100
申请日：2012-08-17
申请人： Sergio Lanzone , Stefano Ruffini , Orazio Toscano
发明人： Sergio Lanzone , Stefano Ruffini , Orazio Toscano
IPC分类号： H04L7/00
CPC分类号： H04L7/0075 , H04J3/065 , H04J3/0667 , H04J3/0673 , H04J3/1652
摘要： A method distributes clock synchronization information within an optical communications network having a plurality of network elements. The method receives an ingress clock synchronization message at a first said network element. The ingress clock synchronization message includes a clock synchronisation message identifier and a correction field. The clock synchronisation message identifier is inserted into an optical channel frame overhead and the ingress clock synchronisation message is inserted into an optical channel frame payload. The optical channel frame overhead and the optical channel frame payload are transmitted across the first network element, across the network to a second said network element, and across the second network element. A transit time of the clock synchronisation message identifier is determined across each of the network elements. At the second network element, the correction field of the ingress clock synchronisation message is updated with said transit times to form an egress clock synchronisation message.
摘要翻译：一种方法在具有多个网络元件的光通信网络内分发时钟同步信息。该方法在第一所述网络元件处接收入口时钟同步消息。入口时钟同步消息包括时钟同步消息标识符和校正字段。将时钟同步消息标识符插入到光信道帧开销中，并将入口时钟同步消息插入到光信道帧有效载荷中。光通道帧开销和光信道帧有效载荷通过第一网络元件跨网络传输到第二所述网络元件，并穿过第二网络元件。在每个网络元件上确定时钟同步消息标识符的传输时间。在第二网元处，以所述传送时间更新入口时钟同步消息的校正字段，以形成出口时钟同步消息。

7. 发明申请

US20150104167A1 DETERMINING PROPERTIES OF AN OPTICAL COMMUNICATIONS PATH IN AN OPTICAL COMMUNICATIONS NETWORK 有权
标题翻译：确定光通信网络中光通信路径的特性
公开(公告)号：US20150104167A1
公开(公告)日：2015-04-16
申请号：US14401106
申请日：2012-06-19
申请人： Giulio Bottari , Stefano Ruffini
发明人： Giulio Bottari , Stefano Ruffini
IPC分类号： H04B10/077
CPC分类号： H04B10/0775 , H04B10/2513 , H04J3/0661 , H04J3/0697
摘要： A method of determining properties of an optical communications path between a first optical network node (A) and a second optical network node (B) determines, at the second optical network node (B), a time difference between respective first and second optical test signals received on different wavelengths (λ1, λ2) from the first optical network node. The method also determines, at the second optical network node (B), a real-time chromatic dispersion parameter for each of the wavelengths using a respective coherent receiver at the second optical network node. The method can be used to determine length of the path between the nodes (A, B). The method can be used to determine propagation delay between the nodes (A, B), or asymmetry in propagation delay between the nodes (A, B). Where separate paths are used for forward and reverse transmission directions, measurements can be made of each path.
摘要翻译：确定第一光网络节点（A）和第二光网络节点（B）之间的光通信路径的属性的方法在第二光网络节点（B）处确定相应的第一和第二光学测试从第一光网络节点接收的不同波长（λ1，λ2）的信号。该方法还在第二光网络节点（B）处确定在第二光网络节点处使用相应的相干接收机的每个波长的实时色散参数。该方法可用于确定节点（A，B）之间路径的长度。该方法可用于确定节点（A，B）之间的传播延迟，或节点（A，B）之间传播延迟的不对称性。在使用独立路径用于正向和反向传输方向的情况下，可以对每条路径进行测量。

8. 发明申请

US20130315606A1 DISTRIBUTING CLOCK SYNCHRONIZATION INFORMATION WITHIN AN OPTICAL COMMUNICATIONS NETWORK 有权
标题翻译：在光通信网络中分配时钟同步信息
公开(公告)号：US20130315606A1
公开(公告)日：2013-11-28
申请号：US13592297
申请日：2012-08-22
申请人： SERGIO LANZONE , ORAZIO TOSCANO , STEFANO RUFFINI
发明人： SERGIO LANZONE , ORAZIO TOSCANO , STEFANO RUFFINI
IPC分类号： H04L7/00
CPC分类号： H04L7/0075 , H04J3/065
摘要： A method and system of distributing clock synchronization information within an optical communications network including a plurality of network elements, in which a first network element receives an ingress clock synchronization message, the ingress clock synchronization message including a clock synchronisation message identifier and a correction field. The first network element inserts the clock synchronisation message identifier into an optical channel frame overhead and inserts the ingress clock synchronisation message into an optical channel frame payload. The first network element transmits the optical channel frame overhead and the optical channel frame payload to a second network element, and determines a transit time of the clock synchronisation message identifier across each of the network elements. The second network element updates the correction field of the ingress clock synchronisation message with said transit times to form an egress clock synchronisation message.
摘要翻译：一种在包括多个网络元件的光通信网络内分发时钟同步信息的方法和系统，其中第一网络元件接收入口时钟同步消息，所述入口时钟同步消息包括时钟同步消息标识符和校正字段。第一网络元件将时钟同步消息标识符插入到光信道帧开销中，并将入口时钟同步消息插入到光信道帧有效载荷中。第一网络单元将光信道帧开销和光信道帧有效载荷发送到第二网元，并且确定每个网络元件上的时钟同步消息标识符的传播时间。第二网元更新具有所述传送时间的入口时钟同步消息的校正字段以形成出口时钟同步消息。

9. 发明申请

US20130202291A1 DETERMINING ASYMMETRIES IN A COMMUNICATION NETWORK 有权
标题翻译：确定通信网络中的不对称性
公开(公告)号：US20130202291A1
公开(公告)日：2013-08-08
申请号：US13879147
申请日：2011-09-13
申请人： Fabio Cavaliere , Giulio Bottari , Luca Giorgi , Stefano Ruffini
发明人： Fabio Cavaliere , Giulio Bottari , Luca Giorgi , Stefano Ruffini
IPC分类号： H04B10/08
CPC分类号： H04L43/0864 , H04B10/07 , H04B10/0775 , H04B10/0795 , H04B2210/072 , H04B2210/078 , H04J3/0667 , H04J14/0201 , H04J14/021 , H04J14/0226 , H04J14/0267 , H04J14/0273 , H04J14/0275 , H04Q11/0066 , H04Q2011/0083
摘要： A method for measuring asymmetry in propagation delay of first and second links which connect a first node to a second node of a communication network. The method comprises measuring (101) a round trip delay of the first link. The round trip delay can be measured by transmitting (102) a test signal from the first node to the second node over the first link and receiving a reply to the test signal from the second node over the first link. The method further comprises measuring (105) a round trip delay of the second link. The round trip delay can be measured by transmitting (106) a test signal to the second node over the second link and receiving a reply to the test signal from the second node over the second link. A difference in the propagation delay of the first link with respect to the second link is determined (109) using the measured round trip delays of the first link and the second link.
摘要翻译：一种用于测量将第一节点连接到通信网络的第二节点的第一和第二链路的传播延迟不对称的方法。该方法包括测量（101）第一链路的往返延迟。可以通过在第一链路上将测试信号从第一节点发送（102）到第二节点（102）并通过第一链路接收来自第二节点的测试信号的答复来测量往返延迟。该方法还包括测量（105）第二链路的往返延迟。可以通过在第二链路上向第二节点发送（106）测试信号（106）并通过第二链路从第二节点接收对测试信号的回复来测量往返延迟。使用所测量的第一链路和第二链路的往返延迟来确定第一链路相对于第二链路的传播延迟的差异（109）。

10. 发明申请

US20130039220A1 CONFIGURATION OF SYNCHRONISATION NETWORK HAVING SYNCHRONIZATION TRAILS FOR TIME SYNC AND FREQUENCY SYNC 有权
标题翻译：具有同步和同步同步的同步网络的配置
公开(公告)号：US20130039220A1
公开(公告)日：2013-02-14
申请号：US13516363
申请日：2010-01-18
申请人： Stefano Ruffini , Raoul Fiorone , Sergio Lanzone , Orazio Toscano
发明人： Stefano Ruffini , Raoul Fiorone , Sergio Lanzone , Orazio Toscano
IPC分类号： H04L12/28
CPC分类号： H04J3/0679 , H04J3/0641
摘要： Configuring a node (410) of a synchronization network involves identifying (10) possible alternative time synchronization trails arranged to carry time synchronization information for time synchronization at the node, and possible alternative frequency trails, arranged to carry frequency synchronization information for frequency synchronization at the node. Using information about the sources (20), a comparison of the trails (30) is biased to increase a likelihood of choosing time synchronization and frequency trails which share the same source, over a likelihood of choosing trails with different sources. This can help avoid divergence and consequent bit errors arising from phase errors, resulting from trails having different sources. It can encompass for example changing both to a new common source, or changing one or both trails while still using the old common source.
摘要翻译：配置同步网络的节点（410）涉及识别（10）布置为携带用于节点处的时间同步的时间同步信息的可能的备选时间同步轨迹，以及可能的替代频道，其被布置为携带用于频率同步的频率同步信息节点。使用关于源（20）的信息，对于选择具有不同来源的路径的可能性，路径（30）的比较被偏置以增加选择共享相同源的时间同步和频道的可能性。这可以帮助避免由于具有不同来源的路径导致的相位误差产生的分歧和相应的位错误。它可以包括例如将两者都改为新的公共源，或者改变一个或两个路径，同时仍然使用旧的公共源。

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