专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP2748957A1 ROUTING AND BANDWIDTH ASSIGNMENT FOR FLEXIBLE GRID WAVELENGTH SWITCHED OPTICAL NETWORKS 有权
标题翻译：路由和带宽分配波长交换光网络，柔性系杆
公开(公告)号：EP2748957A1
公开(公告)日：2014-07-02
申请号：EP11764533.3
申请日：2011-09-30
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： SAMBO, Nicola , CUGINI, Filippo , CASTOLDI, Piero , BOTTARI, Giulio , IOVANNA, Paola
IPC分类号： H04J14/02
CPC分类号： H04Q11/0062 , H04J14/0224 , H04J14/0227 , H04J14/0257 , H04J14/026 , H04J14/0267 , H04J14/0269 , H04J14/0271 , H04Q2011/0086
摘要： Routing and bandwidth assignment of new paths of different bandwidths, occupying different numbers of adjacent frequency slots in a wavelength switched optical network, involves selecting a route, and assigning a set of adjacent frequency slots. The assignment can place wider bandwidth ones of the new paths at an opposite end of a spectrum of the available frequency slots, to an end where narrower bandwidth ones are placed. A size of sets of available adjacent slots remaining after the assignment is likely to be increased, compared to a conventional first fit assignment. A wider subsequent new path can sometimes be accommodated along all or some of the route and thus the blocking probability can be lowered. The selecting of which of the possible routes to use can be made dependent on which has more sets of available adjacent frequency slots, or which has a wider gap between occupied slots.

2. 发明授权

EP2476224B1 METHOD AND APPARATUS FOR PATH COMPUTATION ELEMENT AND ROUTING CONTROLLER COOPERATION 有权转让
标题翻译：方法和设备之间的一个WEGBERECHNUNGSELEMENT和路径管制合作
公开(公告)号：EP2476224B1
公开(公告)日：2014-10-08
申请号：EP10752643.6
申请日：2010-08-23
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： IOVANNA, Paola , BOTTARI, Giulio , WELIN, Annikki , CUGINI, Filippo , PAOLUCCI, Francesco , CASTOLDI, Piero
IPC分类号： H04L12/701 , H04L12/727 , H04L12/751 , H04L12/721 , H04L12/717 , H04Q11/00
CPC分类号： H04Q11/0062 , H04L45/00 , H04L45/10 , H04L45/121 , H04L45/123 , H04L45/42 , H04L45/62 , H04Q2011/0073

3. 发明公开

EP2617148A1 ESTABLISHING CONNECTIONS IN A MULTI-RATE OPTICAL NETWORK 审中-公开
标题翻译：欧洲最佳网络智能手机网络智能手机
公开(公告)号：EP2617148A1
公开(公告)日：2013-07-24
申请号：EP10768758.4
申请日：2010-10-15
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： SAMBO, Nicola , CUGINI, Filippo , CASTOLDI, Piero , BOTTARI, Giulio , IOVANNA, Paola
IPC分类号： H04J14/02 , H04Q11/00
CPC分类号： H04Q11/0062 , H04J14/0257 , H04J14/0258 , H04J14/026 , H04J14/0267 , H04J14/0269 , H04Q2011/0077 , H04Q2011/0088
摘要： An optical transmission network comprises nodes which support a plurality of different wavelength channels and support at least a first bitrate traffic type and the second bitrate traffic type on respective wavelength channels. A connection of the second bitrate traffic type is established on an available wavelength, if the wavelength offers an acceptable quality of transmission using a first quality of transmission calculation. Alternatively, a connection of the second bitrate traffic type is established on a wavelength which is spaced, by a guard band, from wavelengths used for connections of the first bitrate traffic type, if the wavelength offers an acceptable quality of transmission using a second quality of transmission calculation. The second quality of transmission calculation is less stringent than the first quality of transmission calculation, and can ignore the effects of interference due to cross-phase modulation. The guard band is a wavelength spacing at which the interference between a connection of the first bitrate traffic type and a connection of the second bitrate traffic type is less than a predetermined amount.
摘要翻译：光传输网络包括支持多个不同波长信道并且在相应波长信道上支持至少第一比特率业务类型和第二比特率业务类型的节点。如果波长使用第一传输质量计算提供可接受的传输质量，则在可用波长上建立第二比特率业务类型的连接。或者，如果波长使用第二比特率业务类型的连接的波长提供可接受的传输质量，则由保护频带隔开的波长建立第二比特率业务类型的连接，传输计算。传输计算的第二个质量不如第一传输质量计算严格，并且可以忽略由于交叉相位调制引起的干扰的影响。保护频带是第一比特流量类型的连接与第二比特流量类型的连接之间的干扰小于预定量的波长间隔。

4. 发明公开

EP2878091A1 ROUTING FOR SUPER CHANNEL FOR BANDWIDTH VARIABLE WAVELENGTH SWITCHED OPTICAL NETWORK 失效
标题翻译：路由对于波长超渠道交换光网络可变带宽的
公开(公告)号：EP2878091A1
公开(公告)日：2015-06-03
申请号：EP12748440.0
申请日：2012-08-16
申请人： Telefonaktiebolaget L M Ericsson (PUBL)
发明人： SAMBO, Nicola , CUGINI, Filippo , BOTTARI, Giulio , IOVANNA, Paola , CASTOLDI, Piero
IPC分类号： H04J14/02
CPC分类号： H04Q11/0062 , H04J14/0212 , H04J14/0257 , H04J14/0261 , H04J14/0267 , H04J14/0298 , H04L27/2697 , H04L45/62 , H04Q2011/0086 , H04Q2011/0088
摘要： In an optical communications network using bandwidth variable wavelength switching, routing and spectrum assignment for a traffic request for x sub-carriers of a super-channel, involves checking for an existing super-channel having sufficient potential sub-carriers not currently active. If not found, then possible paths for a new super-channel are identified and a path is selected and sub-carriers assigned. By trying first to use inactive potential sub-carriers of an existing super-channel, fewer super channels overall are needed, and thus fewer super transponders are needed. This can reduce blocking probabilities and can reduce capital costs. The search for possible paths can try to avoid or reduce overlap with spectrum of existing super channels, or compare possible paths by weighting according to amounts of overlap.

5. 发明公开

EP2409459A1 INTER-DOMAIN ADVERTISEMENTS IN MULTI-DOMAIN NETWORKS 审中-公开
标题翻译： DOMAIN界广告在更多领域网络
公开(公告)号：EP2409459A1
公开(公告)日：2012-01-25
申请号：EP09779370.7
申请日：2009-04-28
申请人： Telefonaktiebolaget L M Ericsson (PUBL)
发明人： CUGINI, Filippo , CASTOLDI, Piero , WELIN, Annikki
IPC分类号： H04L12/56
CPC分类号： H04L45/12 , H04L45/04 , H04L45/22 , H04L45/42 , H04L45/44 , H04L45/50
摘要： In a multi-domain network each domain, or Autonomous System (AS), has a route calculation entity (PCE A) which is responsible for computing paths between domains on behalf of clients. The route calculation entity (PCE A) sends advertisement messages to a route calculation entity (PCE B) in another domain. The advertisement message carries at least one of: inter-domain resource information and aggregated intra- domain information, such as simplified topology information or cumulative traffic engineering (TE) metrics. The inter-domain resource information can be inter-domain route or reachability information which is normally discarded by a routing protocol such as the Border Gateway Protocol (BGP) and can include inter-domain Traffic Engineering (TE) information such as reservable bandwidth.

6. 发明申请

WO2013037429A1 A METHOD AND APPARATUS FOR ALLOCATING SLOTS FOR TRANSMISSION OF DATA 审中-公开
标题翻译：用于分发数据传输的方法和装置
公开(公告)号：WO2013037429A1
公开(公告)日：2013-03-21
申请号：PCT/EP2011/072117
申请日：2011-12-07
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , BOTTARI, Giulio , SAMBO, Nicola , CUGINI, Filippo , CASTOLDI, Piero , IOVANNA, Paola
发明人： BOTTARI, Giulio , SAMBO, Nicola , CUGINI, Filippo , CASTOLDI, Piero , IOVANNA, Paola
IPC分类号： H04J14/02
CPC分类号： H04J14/023 , H04J14/0256 , H04J14/0257 , H04J14/0258
摘要： Slots (311) for transmission of data of a particular transmission type over an optical network are allocated by selecting a first available slot (313_2) at an ordinal position corresponding to a multiple of n and allocating the selected first available slot and the next n-1 consecutive slots (313_4, 313_5) from the selected first available slot (313_3), if all n-1 consecutive slots (313_4, 313_5) are available, for transmission of data of the particular transmission type. The data is transmitted over an optical network comprising a plurality of nodes (305, 327) interconnected by optical sections (301, 309, 329, 331) the nodes (305, 327) supporting a plurality of transmission types, wherein transmission of data of the particular transmission type requires a predetermined number n of consecutive slots. Alternatively the slots may be divided in groups (333, 335, 337) and slots are allocated to a group in which all slots are available.
摘要翻译：通过选择与n的倍数相对应的顺序位置处的第一可用时隙（313_2）来分配用于通过光网络传输特定传输类型的数据的时隙（311），并且分配所选择的第一可用时隙和下一个n- 如果所有n-1个连续时隙（313_4,313_5）可用，则用于传输特定传输类型的数据，从所选择的第一可用时隙（313_3）中选择1个连续时隙（313_4,313_5）。数据通过包括多个节点（305,327）的光网络传输，所述多个节点（305,327）由支持多个传输类型的节点（305,327）的光学部分（301,309,329,331）互连，其中传输数据特定传输类型需要预定数量的n个连续时隙。或者，时隙可以被分组（333,335,337），并且时隙被分配给所有时隙都可用的组。

7. 发明申请

WO2012025148A1 METHOD AND APPARATUS FOR DYNAMIC WAVELENGTH ALLOCATION IN WAVELENGTH SWITCHED OPTICAL NETWORKS 审中-公开
标题翻译：波长切换光网络中动态波长分配的方法与装置
公开(公告)号：WO2012025148A1
公开(公告)日：2012-03-01
申请号：PCT/EP2010/062344
申请日：2010-08-24
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , SAMBO, Nicola , CUGINI, Filippo , CASTOLDI, Piero , BOTTARI, Giulio , IOVANNA, Paola
发明人： SAMBO, Nicola , CUGINI, Filippo , CASTOLDI, Piero , BOTTARI, Giulio , IOVANNA, Paola
IPC分类号： H04J14/02
CPC分类号： H04J14/0257 , H04J14/026 , H04J14/0267 , H04J14/0269
摘要： A method of allocating a wavelength to a lightpath in a wavelength multiplex for use in an optical network comprising nodes connected by optical links, wherein the wavelength multiplex is adapted to support lightpaths of two different bitrates. The disclosed method allows for efficient allocation of wavelengths that prevents wasting bandwidth and mitigates detrimental effects of cross-phase modulation.
摘要翻译：将波长分配给波长多路复用中用于包括通过光链路连接的节点的光网络中的光路的方法，其中所述波长多路复用适于支持两种不同比特率的光路。所公开的方法允许有效地分配波长以防止浪费带宽并减轻交叉相位调制的有害影响。

8. 发明申请

WO2013127472A1 CHANGING THE SPECTRAL POSITION OF A LIGHTPATH 审中-公开
标题翻译：改变LIGHTPATH的光谱位置
公开(公告)号：WO2013127472A1
公开(公告)日：2013-09-06
申请号：PCT/EP2012/055153
申请日：2012-03-22
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , CUGINI, Filippo , CASTOLDI, Piero , BOTTARI, Giulio , BRUNO, Gianmarco , SAMBO, Nicola , IOVANNA, Paola
发明人： CUGINI, Filippo , CASTOLDI, Piero , BOTTARI, Giulio , BRUNO, Gianmarco , SAMBO, Nicola , IOVANNA, Paola
IPC分类号： H04J14/02
CPC分类号： H04J14/0227 , H04J14/02 , H04J14/0224 , H04J14/0254 , H04J14/0257 , H04J14/026 , H04J14/0267
摘要： A method of changing the spectral position of a lightpath (11) between a source node (B) and a destination node (D) of an optical network. The optical network (2) uses a flexible grid for spectral allocation and the lightpath has been allocated first spectral resources (50) at a first spectral position. The method comprises, at the source node (B), reserving (101) additional spectral resources (51) for the lightpath which are contiguous in frequency with the first spectral resources (50). The method comprises re-tuning (105) a light source (33) at the source node (B) such that the lightpath moves in frequency from using the first spectral resources (50) at the first spectral position to using second spectral resources (54) at a second spectral position, wherein the second spectral resources comprise at least some of the additional spectral resources (51). The method comprises releasing (106) at least some of the first spectral resources (50). The source node continues to send traffic over the lightpath during the re-tuning (105).
摘要翻译：一种改变光网络的源节点（B）和目的地节点（D）之间的光路（11）的光谱位置的方法。光网络（2）使用柔性网格进行光谱分配，并且光路已经在第一光谱位置被分配了第一光谱资源（50）。该方法包括在源节点（B）处为与第一频谱资源（50）频率相邻的光路预留（101）附加频谱资源（51）。该方法包括在源节点（B）处重新调谐（105）光源（33），使得光路在频率上从使用第一光谱位置处的第一光谱资源（50）到使用第二光谱资源（54 ），其中所述第二频谱资源包括所述附加频谱资源（51）中的至少一些。该方法包括释放（106）至少一些第一光谱资源（50）。在重新调谐期间，源节点继续在光路上发送流量（105）。

9. 发明公开

EP2820784A1 CHANGING THE SPECTRAL POSITION OF A LIGHTPATH 有权
标题翻译：改变光路的光谱位置的
公开(公告)号：EP2820784A1
公开(公告)日：2015-01-07
申请号：EP12711614.3
申请日：2012-03-22
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： CUGINI, Filippo , CASTOLDI, Piero , BOTTARI, Giulio , BRUNO, Gianmarco , SAMBO, Nicola , IOVANNA, Paola
IPC分类号： H04J14/02
CPC分类号： H04J14/0227 , H04J14/02 , H04J14/0224 , H04J14/0254 , H04J14/0257 , H04J14/026 , H04J14/0267
摘要： A method of changing the spectral position of a lightpath between a source node and a destination node of an optical network. The optical network uses a flexible grid for spectral allocation and the lightpath has been allocated first spectral resources at a first spectral position. The method comprises, at the source node, reserving additional spectral resources for the lightpath which are contiguous in frequency with the first spectral resources. The method comprises re-tuning a light source at the source node such that the lightpath moves in frequency from using the first spectral resources at the first spectral position to using second spectral resources at a second spectral position, wherein the second spectral resources comprise at least some of the additional spectral resources. The method comprises releasing at least some of the first spectral resources. The source node continues to send traffic over the lightpath during the re-tuning.

10. 发明申请

WO2014131429A1 TRAFFIC RECOVERY IN OPENFLOW NETWORKS 审中-公开
标题翻译：开流网络中的交通恢复
公开(公告)号：WO2014131429A1
公开(公告)日：2014-09-04
申请号：PCT/EP2013/053778
申请日：2013-02-26
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： GIORGETTI, Alessio , CASTOLDI, Piero , BOTTARI, Giulio , CUGINI, Filippo , SGAMBELLURI, Andrea , PAOLUCCI, Francesco
IPC分类号： H04L12/711
CPC分类号： H04L45/28 , H04L41/0668 , H04L45/22 , H04L45/38 , H04L45/64
摘要： Traffic recovery is supported at a switching node (20) of an OpenFlow network (5).The switching node (20) has a flow table (23) for storing flow entries (24) which determine forwarding of received packets between the ports. A switching node (20) installs (102) a flow entry for a back up path in the flow table (23). The switching node (20) renews (104, 105) the flow entry for the backup path based on at least one of : (i) an association between the flow entry for the backup path and a flow entry for a working path at the switching node, wherein the flow entry for the backup path is renewed when the flow entry for the working path is used to forward a received packet; (ii) receiving a flow entry renewal packet from another switching node on the backup path. A backup path can be configured for each of multiple points of failure in the working path.
摘要翻译：在OpenFlow网络（5）的交换节点（20）处支持业务恢复。交换节点（20）具有用于存储确定在端口之间接收的分组的转发的流入表（24）的流表（23）。交换节点（20）在流表（23）中安装（102）用于备份路径的流条目。交换节点（20）基于以下至少一个来更新备用路径的流入口（104,105）：（i）备用路径的流入口与切换时的工作路径的流入口之间的关联节点，其中当用于所述工作路径的流条目用于转发所接收的分组时，备份路径的流条目被更新; （ii）从备用路径上的另一交换节点接收流入口更新分组。可以为工作路径中的多个故障点中的每一个配置备份路径。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式