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公开(公告)号：EP3216171B1
公开(公告)日：2019-01-09
申请号：EP14793112.5
申请日：2014-11-03
发明人： RUFFINI, Stefano , PEPE, Teresa , PULERI, Marzio
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公开(公告)号：EP3134999B1
公开(公告)日：2018-06-06
申请号：EP14723011.4
申请日：2014-04-23
发明人： PEPE, Teresa , PULERI, Marzio
IPC分类号： H04L12/24 , H04L12/26 , H04L12/721
CPC分类号： H04L45/02 , H04L41/12 , H04L41/142 , H04L43/10 , H04L45/12 , H04L45/123
摘要： A method (50) of selecting a set of probing paths in a network for network tomography. The method comprises generating (52) possible probing paths (P1). The method further comprises determining (53) if the possible probing paths are linearly independent from probing paths already selected for the set of probing paths, in an order of an increasing cost or distance of the possible probing paths. The method further comprises selecting (55) a said possible probing path for the set of probing paths only if the possible probing path is linearly independent from probing paths already selected.
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公开(公告)号：EP3248338A1
公开(公告)日：2017-11-29
申请号：EP15702181.7
申请日：2015-01-21
发明人： IOVANNA, Paola , UBALDI, Fabio , PEPE, Teresa
IPC分类号： H04L12/715 , H04L12/24 , H04L12/717 , H04L12/721
CPC分类号： H04L41/0896 , H04L12/46 , H04L45/04 , H04L45/302 , H04L45/42 , H04L45/44
摘要： A method (400) for providing support for elasticity within a domain of a multi-domain network. The method comprises receiving (401) information for a requested virtual link forming part of an end-to-end path across the multi-domain network; wherein the information of the virtual link comprises a service parameter and an elasticity parameter. The method further comprises selecting (402) a physical path (150) corresponding to the virtual link on which to send traffic. The physical path is selected based on a service parameter and an elasticity parameter of the physical path.
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公开(公告)号：EP3222000A1
公开(公告)日：2017-09-27
申请号：EP14802849.1
申请日：2014-11-19
发明人： PULERI, Marzio , PEPE, Teresa
IPC分类号： H04L12/24
CPC分类号： H04L41/147 , H04L41/14 , H04L43/08
摘要： A method for inferring component parameter values for components in a network is disclosed. The components comprise at least one of network nodes or network links and the method comprises identifying a plurality of paths through the network (100), measuring values of a path parameter for identified paths (410), generating a set of constraints by expressing individual measured path parameter values as a function of component parameter values of the components in the path associated with the measured path parameter value (420a), and generating an estimate of the component parameter values by solving an optimisation problem defined by the generated constraints (420b). The method further comprises, for individual components in the identified paths, matching the generated estimates of the component parameter value to a statistical distribution describing a behaviour of the component parameter (430a), identifying a ratio of central moments of the statistical distribution that demonstrates a sensitivity to noise below a threshold value (430b), and calculating an inferred value of the component parameter from the identified ratio of central moments (430c).
摘要翻译： 公开了一种用于推断网络中的组件的组件参数值的方法。 所述组件包括网络节点或网络链路中的至少一个，并且所述方法包括识别通过所述网络（100）的多个路径，测量所识别的路径的路径参数的值（410），通过表达所测量的个体来生成一组约束 作为与所测量的路径参数值（420a）相关联的路径中的组件的组件参数值的函数，并且通过求解由所生成的约束（420b）定义的优化问题来生成组件参数值的估计。 该方法进一步包括，对于所识别的路径中的各个组件，将所生成的组件参数值的估计与描述组件参数（430a）的行为的统计分布匹配，识别统计分布的中心矩的比率， 对低于阈值（430b）的噪声的敏感度，以及从所识别的中心矩比（430c）计算分量参数的推断值。
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公开(公告)号：EP3216171A1
公开(公告)日：2017-09-13
申请号：EP14793112.5
申请日：2014-11-03
发明人： RUFFINI, Stefano , PEPE, Teresa , PULERI, Marzio
CPC分类号： H04J3/0667 , H04J3/06 , H04L29/08135 , H04L41/12 , H04L41/142 , H04L43/00 , H04L43/0864 , H04L43/087 , H04L43/10 , H04L43/16
摘要： The method comprises analyzing (203) probing packets sent on a plurality of end-to-end paths over links of the network. At least one analysed probing packet is a timing packet comprising timing information for synchronization. The analyzing comprising analyzing probing packets sent on all of a set of probing paths. The set is selected (201) such that the analyzing provides a determination of a performance of each individual link. The method further comprises determining (204) the performance of individual links.
摘要翻译： 该方法包括分析（203）探测通过网络的链路在多个端到端路径上发送的分组。 至少一个分析的探测分组是包括用于同步的定时信息的定时分组。 该分析包括分析在一组探测路径上发送的探测分组。 该组被选择（201），使得分析提供每个单独链路的性能的确定。 该方法还包括确定（204）各个链路的性能。
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公开(公告)号：EP3269102B1
公开(公告)日：2018-09-19
申请号：EP15710161.9
申请日：2015-03-12
发明人： PULERI, Marzio , PEPE, Teresa , D'ERRICO, Antonio , LAGHEZZA, Francesco , SCOTTI, Filippo , GHELFI, Paolo , BOGONI, Antonella
IPC分类号： H04L27/02 , H04J11/00 , H04L27/00 , H04L5/00 , H04L27/18 , H04L27/36 , H04L27/38 , H04W28/18
CPC分类号： H04L27/2697 , H04B7/024 , H04J11/003 , H04J11/005 , H04L1/00 , H04L5/0035 , H04L27/0008 , H04L27/02 , H04L27/18 , H04L27/2032 , H04L27/361 , H04L27/362 , H04L27/3836 , H04L27/389 , H04W28/18 , H04W88/08
摘要： A periodic phase modulation, having a period shorter than a symbol period, is applied as a source modulation, in addition to a symbol modulation, to signals transmitted between a transmitter and a receiver in a communication network. Symbol value elements can be sent from multiple transmitters (203, 303, 603, 703) to a receiver (607, 207) in the same symbol period can be processed on the basis of the source modulation without destructive interference. In some embodiments, the symbol value elements sent by different transmitters can be combined in the receiver. In some embodiments, symbol value elements sent by different transmitters can be distinguished in the receiver.
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公开(公告)号：EP3123677B1
公开(公告)日：2018-08-29
申请号：EP14777312.1
申请日：2014-09-29
发明人： IOVANNA, Paola , PEPE, Teresa , UBALDI, Fabio
IPC分类号： H04L12/931 , H04L12/717 , H04L12/24 , G06F9/455 , H04L12/751 , H04L12/715
CPC分类号： H04L45/02 , G06F9/45558 , G06F2009/45595 , H04L41/12 , H04L41/5019 , H04L45/04 , H04L45/42 , H04L49/70
摘要： A method for providing support for elasticity in network virtualisation of a heterogeneous, multi-domain network comprising receiving (802) from network domains information about elasticity capability of physical paths in said network domains; summarising (804) physical paths in said network domains into virtual links; and producing (806) a topology of a virtual network overlaying the multi-domain network by associating elasticity parameters with the virtual links, wherein the elasticity parameters are inferred from the physical paths.
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公开(公告)号：EP3231139B1
公开(公告)日：2018-02-21
申请号：EP14811868.0
申请日：2014-12-11
发明人： UBALDI, Fabio , PULERI, Marzio , PEPE, Teresa
IPC分类号： H04L12/26
CPC分类号： H04L41/12 , H04L43/04 , H04L43/0847 , H04L43/087 , H04L43/106 , H04L43/12
摘要： A method of monitoring performance of a network using network tomography comprises obtaining (102) information indicative of topology of the network and computing (104) a plurality of paths for monitoring the network. Further the method comprises instructing (110) source nodes of the computed paths to send probing packets towards destination nodes of the computed paths, wherein said probing packets undergo segment routing in said network and instructing (114) the destination nodes of the computed paths to carry out network performance measurements based on probing packets received by the destination nodes. Finally the method comprises receiving (116) the performance measurements from the destination nodes and inferring (118) information about performance of nodes in the network using network tomography, wherein the inference process includes correlating the performance measurements of the computed paths.
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公开(公告)号：EP3272018A1
公开(公告)日：2018-01-24
申请号：EP15711470.3
申请日：2015-03-16
发明人： PULERI, Marzio , D'ERRICO, Antonio , PEPE, Teresa , BOGONI, Antonella , GHELFI, Paolo , SCOTTI, Filippo , LAGHEZZA, Francesco
摘要： A plurality of sub-cells are defined within a cell area of a radio communication network by the intersection of a radio paths of a plurality of directional radio antennas. The plurality of directional radio antennas are arranged to broadcast radio signals simultaneously, and to receive radio signals simultaneously. This disclosure relates to determining of signal values transmitted by or received from the plurality of directional radio antennas in a radio communication network.
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公开(公告)号：EP3269102A1
公开(公告)日：2018-01-17
申请号：EP15710161.9
申请日：2015-03-12
发明人： PULERI, Marzio , PEPE, Teresa , D'ERRICO, Antonio , LAGHEZZA, Francesco , SCOTTI, Filippo , GHELFI, Paolo , BOGONI, Antonella
CPC分类号： H04L27/2697 , H04B7/024 , H04J11/003 , H04J11/005 , H04L1/00 , H04L5/0035 , H04L27/0008 , H04L27/02 , H04L27/18 , H04L27/2032 , H04L27/361 , H04L27/362 , H04L27/3836 , H04L27/389 , H04W28/18 , H04W88/08
摘要： A periodic phase modulation, having a period shorter than a symbol period, is applied as a source modulation, in addition to a symbol modulation, to signals transmitted between a transmitter and a receiver in a communication network. Symbol value elements can be sent from multiple transmitters (203, 303, 603, 703) to a receiver (607, 207) in the same symbol period can be processed on the basis of the source modulation without destructive interference. In some embodiments, the symbol value elements sent by different transmitters can be combined in the receiver. In some embodiments, symbol value elements sent by different transmitters can be distinguished in the receiver.
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