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1. 发明授权

US09628259B2 Distributing clock synchronization information within an optical communications network 有权
公开(公告)号：US09628259B2
公开(公告)日：2017-04-18
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： H04B10/00 , H04L7/00 , H04J3/06 , H04J3/16
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 network element. The ingress clock synchronization message includes a clock synchronization message identifier and a correction field. The clock synchronization message identifier is inserted into an optical channel frame overhead and the ingress clock synchronization 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 network element, and across the second network element. A transit time of the clock synchronization message identifier is determined across each of the network elements. At the second network element, the correction field of the ingress clock synchronization message is updated with the transit times to form an egress clock synchronization message.

2. 发明授权

US09264168B2 Communications network using adaptable FEC 有权
标题翻译：通信网络采用适应性FEC
公开(公告)号：US09264168B2
公开(公告)日：2016-02-16
申请号：US13996444
申请日：2011-03-15
申请人： Sergio Lanzone , Ghani Abdul Muttalib Abbas , Orazio Toscano
发明人： Sergio Lanzone , Ghani Abdul Muttalib Abbas , Orazio Toscano
IPC分类号： H03M13/00 , H04J14/02 , H04L1/00 , H04L1/20
CPC分类号： H04L1/0041 , H04B10/07953 , H04J14/0212 , H04J14/0221 , H04J14/0273 , H04J2203/006 , H04J2203/0089 , H04L1/0009 , H04L1/0026 , H04L1/0045 , H04L1/203
摘要： A node for a communications network has a converter for digitizing at a receiver clock rate a received optical signal received over an optical link from an optical transmitter at a source node, a framer for detecting frames and a forward error correction part for correcting errors in the payload of the frame. An error rate in the received payload part is monitored and a processor sends, according to the monitored error rate, a request to the optical transmitter to adapt a length of the transmitted forward error correction part and to adapt a clock rate of the transmission of the frame if FEC length is reduced or FEC is disabled. This can enable power saving, when less FEC information is being sent.
摘要翻译：用于通信网络的节点具有转换器，用于以接收机时钟速率对来自源节点处的光发送器的光链路接收的光信号进行数字化，用于检测帧的成帧器和用于校正错误的前向纠错部分帧的有效载荷。监视接收到的有效载荷部分中的错误率，并且处理器根据所监视的错误率向光发射机发送一个适配所发送的前向纠错部分的长度的请求，并且调整发送的前向纠错部分的时钟速率如果FEC长度减少或FEC被禁用，则为帧。当发送较少的FEC信息时，可以实现省电。

3. 发明申请

US20130101292A1 RESIZING EXISTING TRAFFIC FLOW IN OPTICAL TRANSPORT NETWORK 有权
标题翻译：解决光传输网络中现有的流量流动
公开(公告)号：US20130101292A1
公开(公告)日：2013-04-25
申请号：US13284146
申请日：2011-10-28
申请人： SERGIO LANZONE , ANNAMARIA FULIGNOLI , ANTONIO TARTAGLIA
发明人： SERGIO LANZONE , ANNAMARIA FULIGNOLI , ANTONIO TARTAGLIA
IPC分类号： H04L12/26 , H04J14/00
CPC分类号： H04L47/25 , H04J3/1652 , H04L47/17 , H04L47/33 , H04L47/35
摘要： In an optical transport network a traffic flow comprises data grouped into a number of resizable data units, encapsulated by optical transport frames, each having a frame overhead. A rate of the traffic flow is changed by changing the data unit overhead and changing at the source node the frame overhead to indicate a change in rate of an optical signal carrying the traffic flow. An optical transmission part is tuned to transmit at the new rate, and at any intermediate nodes along the route the indication of the change in rate is detected in the frame overhead so that the traffic flow on a next optical link is transmitted at the new rate. Thus optical bandwidth allowed for enlarging the data units, can be saved, and electrical processing of data units at the nodes can be simplified, reducing power consumption.
摘要翻译：在光传输网络中，业务流包括分组为多个可调整大小的数据单元的数据，由光传输帧封装，每个具有帧开销。通过改变数据单元开销并在源节点处改变帧开销来改变业务流量的速率，以指示承载业务流的光信号的速率变化。调整光传输部分以新速率传输，并且沿着路由的任何中间节点，在帧开销中检测到速率变化的指示，使得下一个光链路上的业务流以新速率传输。因此，可以节省允许放大数据单元的光学带宽，并且可以简化节点处的数据单元的电气处理，从而降低功耗。

4. 发明授权

US07826488B2 Asynchronous line interface rate adaptation to the physical layer with synchronous lines at the connection layer 有权
标题翻译：异步线路接口速率适应物理层与同步线在连接层
公开(公告)号：US07826488B2
公开(公告)日：2010-11-02
申请号：US12067693
申请日：2006-09-20
申请人： Sergio Lanzone , Orazio Toscano
发明人： Sergio Lanzone , Orazio Toscano
IPC分类号： H04J3/00
CPC分类号： H04J3/12 , H04J3/0632 , H04J3/07 , H04L7/005 , H04L7/02 , H04L69/324 , H04L2007/045
摘要： A method for adapting the rates of a certain number of asynchronous HDLC channels (15) to a single clock domain suited for interfacing with an HDLC processor (13) through a synchronous pseudo-TDM interface (14) in which the HDLC channels are multiplexed in time and vice versa in the opposite direction. In one direction the algorithm is based on the writing of the HDLC channels in a dedicated buffer (17) and in reading these buffers with a common synchronous clock just above the expected maximum HDLC rate. The under-run condition is avoided by inserting neutral information between the end byte and the start byte of the HDLC packets when this is suggested by the buffer fill monitoring function. A simple function to locate the first and last bytes of each HDLC packet read by the buffer is hence used in combination with the buffer fill monitoring function. The algorithm is also suited in the opposite direction in which different asynchronous physical lines receive their HDLC channels from a synchronous TDM-type interface on condition that this interface clock domain be just below the minimum expected HDLC output rate. In this case also the under-run conditions are avoided by insertion of neutral data after having used the same algorithm described above. Adaptation devices and a telecommunications card using them are also proposed.
摘要翻译：一种用于将一定数量的异步HDLC信道（15）的速率适应于适合于通过HDLC信道被多路复用的同步伪TDM接口（14）与HDLC处理器（13）进行接口的单个时钟域的方法时间，反之亦然。在一个方向上，算法基于在专用缓冲器（17）中写入HDLC通道，并且在正好高于预期最大HDLC速率的公共同步时钟读取这些缓冲器。当由缓冲区填充监视功能建议时，通过在HDLC数据包的结束字节和起始字节之间插入中性信息来避免运行不足的情况。因此，缓冲区读取的每个HDLC包的第一个和最后一个字节的简单功能与缓冲区填充监视功能结合使用。该算法也适用于不同异步物理线路从同步TDM类型接口接收其HDLC信道的相反方向，条件是该接口时钟域刚好低于最低预期HDLC输出速率。在这种情况下，也可以通过在使用上述相同的算法之后插入中性数据来避免运行不足的情况。还提出了适应装置和使用它们的电信卡。

5. 发明申请

US20080219661A1 Digital cros-connect 有权
标题翻译：数字交叉连接
公开(公告)号：US20080219661A1
公开(公告)日：2008-09-11
申请号：US12070311
申请日：2008-02-14
申请人： Sergio Lanzone , Agostino Damele , Ghani Abbas
发明人： Sergio Lanzone , Agostino Damele , Ghani Abbas
IPC分类号： H04J14/00
CPC分类号： H04J3/1611 , H04Q11/0062 , H04Q11/0071 , H04Q2011/0024
摘要： A digital cross-connect (DXC) (10) comprises: a plurality of ports (30-100) for receiving/outputting signals and switching and switching means (20) for selectively cross-connecting signals applied to one port to one or more other ports. The cross-connect (10) is characterized in that the switching means (20) comprises a single switching matrix which is arranged to be capable of switching Optical Data Units (ODU). Alternatively or in addition the switching matrix is arranged to be capable of transparently switching complete Synchronous Digital Hierarchy (SDH) synchronous transport modules STM-N and/or complete SONET synchronous transport transport signal STS-N derived from optical carriers OC-N and/or SDH vitual containers VC-3, VC-4, and/or concatenated virtual containers VC4-nc where n=4, 16, 64 or 256 as defined in ITU-Recommendation G.707 and/or SONET synchronous transport system STS-1s, STS-nc where n=3, 12, 48, 192 or 768 as defined in Telcordia GR253.
摘要翻译：数字交叉连接（DXC）（10）包括：用于接收/输出信号的多个端口（30-100），以及用于将施加到一个端口的信号选择性地交叉连接到一个或多个其他的开关和开关装置（20）港口。交叉连接（10）的特征在于，开关装置（20）包括被配置为能够切换光学数据单元（ODU）的单个开关矩阵。或者或另外，交换矩阵被布置为能够透明地切换从光载波OC-N和/或SDH导出的完整的同步数字体系（SDH）同步传输模块STM-N和/或完整的SONET同步传输信号STS-N 如ITU-G.707和/或SONET同步传输系统STS-1中定义的虚拟容器VC-3，VC-4和/或级联虚拟容器VC 4 -nc，其中n = 4,16,64或256 ，STS-nc，其中n = 3,12,48,192或768，如Telcordia GR253所定义。

6. 发明申请

US20050163162A1 Communications system 有权
标题翻译：通讯系统
公开(公告)号：US20050163162A1
公开(公告)日：2005-07-28
申请号：US10503154
申请日：2003-01-31
申请人： Sergio Lanzone , Orazio Toscano
发明人： Sergio Lanzone , Orazio Toscano
IPC分类号： H04J3/00 , H04J3/16
CPC分类号： H04J3/1611
摘要： The present invention consists of an information structure conceived for the transport of data in digital form from a transmitting element to a receiver. This structure calls for fields for transport of the data and heading information fields termed “overhead” which improve transmission reliability. This structure enables support of digital interconnections in an element of a transport network capable of switching various traffic types such as CBRx (for example STM-N e OC-N), VC-N, STS-N or ODUk. The structure also enables identification of the frame beginning, verification of the integrity and correctness of the switching, support of protection switching, and transport of quality and timing information associated with the switched entities.
摘要翻译：本发明包括以数字形式从发送元件传输到接收器的信息结构。该结构要求用于传输数据的字段和提高传输可靠性的称为“开销”的标题信息字段。该结构能够支持能够切换诸如CBRx（例如STM-N e OC-N），VC-N，STS-N或ODUk的各种业务类型的传输网络的元件中的数字互连。该结构还能够识别帧的开始，完整性的验证和切换的正确性，保护切换的支持以及与切换的实体相关联的质量和定时信息的传输。

7. 发明授权

US09813176B2 Method and apparatus for forming and processing data units 有权
公开(公告)号：US09813176B2
公开(公告)日：2017-11-07
申请号：US13807571
申请日：2010-08-23
申请人： Sergio Lanzone , Orazio Toscano
发明人： Sergio Lanzone , Orazio Toscano
IPC分类号： H04J3/14 , H04J3/16 , H04J3/06
CPC分类号： H04J3/14 , H04J3/0647 , H04J3/1652 , H04J3/167
摘要： The invention relates to data networks, and in particular relates to a method and apparatus for forming and processing data units to enable the transfer of clock quality information in data networks. A method of forming a higher order data unit, comprising payload data and overhead data, from a plurality of lower order data units, is disclosed. The payload of the higher order data unit is formed by combining the plurality of lower order data units. The overhead data of the higher order data unit includes clock quality information relating to clocks associated with the plurality of lower order data units. Embodiments provide a way of transporting clock quality information relating to clocks associated with a number of lower order data units within a single higher order data unit, and enables intermediate networks easily to access the clock quality information.

8. 发明授权

US08750701B2 Protection mechanism for a communications network 有权
标题翻译：通信网络的保护机制
公开(公告)号：US08750701B2
公开(公告)日：2014-06-10
申请号：US13119637
申请日：2008-09-19
申请人： Orazio Toscano , Sergio Lanzone
发明人： Orazio Toscano , Sergio Lanzone
IPC分类号： H04B10/032 , H04B10/07
CPC分类号： H04J3/14 , H04J2203/006
摘要： The invention relates to a protection mechanism for a communications network. A node, a method, a computer program product and a communications network to provide protection for an optical communications network are disclosed. Communications traffic is selecting from a working path in the optical network. A first fault condition is determining on the working path. The communications traffic is selected from a protection path in the optical network in response to clearing of the first fault and determining a second fault condition on the working path within a first predetermined time period of determining the first fault condition.
摘要翻译：本发明涉及通信网络的保护机制。公开了一种为光通信网络提供保护的节点，方法，计算机程序产品和通信网络。通信业务是从光网络中的工作路径中选择的。第一个故障情况是确定工作路径。响应于第一故障的清除，从光网络中的保护路径中选择通信业务，并且在确定第一故障状态的第一预定时间段内确定工作路径上的第二故障状况。

9. 发明申请

US20130343750A1 COMMUNICATIONS NETWORK USING ADAPTABLE FEC 有权
标题翻译：使用适配FEC的通信网络
公开(公告)号：US20130343750A1
公开(公告)日：2013-12-26
申请号：US13996444
申请日：2011-03-15
申请人： Sergio Lanzone , Ghani Abdul Muttalib Abbas , Orazio Toscano
发明人： Sergio Lanzone , Ghani Abdul Muttalib Abbas , Orazio Toscano
IPC分类号： H04J14/02
CPC分类号： H04L1/0041 , H04B10/07953 , H04J14/0212 , H04J14/0221 , H04J14/0273 , H04J2203/006 , H04J2203/0089 , H04L1/0009 , H04L1/0026 , H04L1/0045 , H04L1/203
摘要： A node for a communications network has a converter for digitizing at a receiver clock rate a received optical signal received over an optical link from an optical transmitter at a source node, a framer for detecting frames and a forward error correction part for correcting errors in the payload of the frame. An error rate in the received payload part is monitored and a processor sends, according to the monitored error rate, a request to the optical transmitter to adapt a length of the transmitted forward error correction part and to adapt a clock rate of the transmission of the frame if FEC length is reduced or FEC is disabled. This can enable power saving, when less FEC information is being sent.
摘要翻译：用于通信网络的节点具有转换器，用于以接收机时钟速率对来自源节点处的光发送器的光链路接收的光信号进行数字化，用于检测帧的成帧器和用于校正错误的前向纠错部分帧的有效载荷。监视接收到的有效载荷部分中的错误率，并且处理器根据所监视的错误率向光发射机发送一个适配所发送的前向纠错部分的长度的请求，并且调整发送的前向纠错部分的时钟速率如果FEC长度减少或FEC被禁用，则为帧。当发送较少的FEC信息时，可以实现省电。

10. 发明申请

US20110313961A1 Method and Apparatus for Routing Data 有权
标题翻译：路由数据的方法和装置
公开(公告)号：US20110313961A1
公开(公告)日：2011-12-22
申请号：US13140014
申请日：2008-12-19
申请人： Orazio Toscano , Sergio Lanzone , Stefano Deprati
发明人： Orazio Toscano , Sergio Lanzone , Stefano Deprati
IPC分类号： G06F15/18
CPC分类号： H04L45/742 , G06N3/0427 , H04L45/08
摘要： A method of routing data through a router in a communications network, the method comprising receiving one or more data packets, each packet having a respective destination address and applying a lookup algorithm to each packet, said lookup algorithm being arranged to determine a respective route along which each packet is to be transmitted towards its destination address by searching an associated hierarchical data structure containing routing information for each packet. The method comprising forwarding each packet for transmission to its respective destination address, wherein said lookup algorithm comprises an adaptive learning component that is configured to dynamically identify an optimum starting position for searching within said hierarchical data structure, for each of the data packets, based on the results of one or more earlier searches.
摘要翻译：一种通过通信网络中的路由器路由数据的方法，所述方法包括：接收一个或多个数据分组，每个分组具有相应的目的地地址并对每个分组应用查找算法，所述查找算法被布置成确定沿着通过搜索包含每个分组的路由信息的相关联的分层数据结构，每个分组将被发送到其目的地址。该方法包括将每个分组转发到其各自的目的地地址，其中所述查找算法包括自适应学习组件，其被配置为基于对每个数据分组动态地识别用于在所述分层数据结构内搜索的最佳起始位置一个或多个早期搜索的结果。

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