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1. 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）。

2. 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。

3. 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。

4. 发明申请

WO2014015915A1 ROUTING FOR SUPER CHANNEL FOR BANDWIDTH VARIABLE WAVELENGTH SWITCHED OPTICAL NETWORK 审中-公开
标题翻译：用于波段可变波长切换光网络的超频道路由
公开(公告)号：WO2014015915A1
公开(公告)日：2014-01-30
申请号：PCT/EP2012/066029
申请日：2012-08-16
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , SAMBO, Nicola , CUGINI, Filippo , BOTTARI, Giulio , IOVANNA, Paola , CASTOLDI, Piero
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 (103) 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 (107) and a path is selected and sub-carriers assigned (140). 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.
摘要翻译：在使用带宽可变波长切换的光通信网络中，对于超级信道的x个子载波的业务请求的路由和频谱分配涉及对具有足够的潜在子载波的当前超级信道进行检查（103）。如果没有找到，则识别新的超级信道的可能路径（107），并且选择路径并分配子载波（140）。首先尝试使用现有超级频道的无效潜在子载波，需要更少的超级频道，因此需要更少的超级应答器。这可以减少阻塞概率，并可以降低资本成本。搜索可能的路径可以尝试避免或减少与现有超级频道的频谱重叠，或者通过根据重叠量加权来比较可能的路径。

5. 发明申请

WO2012103962A1 METHOD OF CONFIGURING AN OPTICAL PATH, A PATH COMPUTATION ENGINE AND AN OPTICAL COMMUNICATIONS NETWORK NODE 审中-公开
标题翻译：配置光路，路径计算机和光通信网络节点的方法
公开(公告)号：WO2012103962A1
公开(公告)日：2012-08-09
申请号：PCT/EP2011/054229
申请日：2011-03-21
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： H04J14/0201 , H04J14/021 , H04J14/0227 , H04J14/0257 , H04J14/0258 , H04J14/0267
摘要： A method (10) of configuring an optical path from a first node to a second node in an optical communications network, comprising: selecting a path from the first node to the second node (12); identifying each wavelength that may be used continuously across the path (14); and selecting a transmission wavelength for the optical path (16) by: selecting a said wavelength for which a fixed wavelength direction-bound add/drop transponder add operable at said wavelength is available at each node (18, 20, 22); if that first requirement is not met, selecting a said wavelength for which a fixed wavelength direction-bound add/drop transponder or a fixed wavelength directionless add/drop transponder operable at said wavelength is available at each node (22, 24, 26); and if that second requirement is not met, selecting a said wavelength for which a tunable wavelength direction-bound add/drop transponder or a tunable wavelength directionless add/drop transponder operable at said wavelength is available at each node (22, 28, 30).
摘要翻译：一种在光通信网络中配置从第一节点到第二节点的光路的方法（10），包括：选择从所述第一节点到所述第二节点（12）的路径; 识别可以在路径（14）上连续使用的每个波长; 以及通过以下步骤来选择光路（16）的透射波长：通过选择在每个节点（18,20,22）可以在所述波长处可操作的固定波长方向绑定的分插转发器应答器加法的所述波长; 如果不满足第一要求，则选择在每个节点（22,24,26）处可用于其上可固定波长方向绑定的分插转发器或在所述波长下可操作的固定波长无向分插转发器的所述波长; 并且如果不满足该第二要求，则在每个节点（22,28,30）处可选择其上可操作波长方向绑定的分插转发器或可调谐波长无方向上/下转发应答器的所述波长可在所述波长处操作，。

6. 发明申请

WO2013026498A1 ROUTING AND BANDWIDTH ASSIGNMENT FOR FLEXIBLE GRID WAVELENGTH SWITCHED OPTICAL NETWORKS 审中-公开
标题翻译：柔性网路波长切换光网络的路由和带宽分配
公开(公告)号：WO2013026498A1
公开(公告)日：2013-02-28
申请号：PCT/EP2011/067166
申请日：2011-09-30
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： 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 (20), involves selecting (100) a route, and assigning (110, 120) a set of adjacent frequency slots. The assignment can place wider ones of the new paths at an opposite end of a spectrum of the available frequency slots, to an end where narrower 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.
摘要翻译：在波长交换光网络（20）中占用不同数量的相邻频率槽的不同带宽的新路径的路由和带宽分配涉及选择（100）路由，以及分配（110,120）一组相邻频率时隙。该分配可以将更广泛的新路径放置在可用频率隙的频谱的相对端，到更窄的一个。与传统的第一拟合分配相比，在分配之后剩余的可用相邻狭缝的集合的大小可能增加。有时可以沿着所有或某些路线容纳更宽的后续新路径，从而可以降低阻塞概率。可以选择要使用哪些可能的路由取决于哪些具有更多的可用相邻频率槽的集合，或者在占用时隙之间具有更宽的间隙。

7. 发明申请

WO2012034603A1 ESTABLISHING CONNECTIONS IN A MULTI-RATE OPTICAL NETWORK 审中-公开
标题翻译：建立多速光网络连接
公开(公告)号：WO2012034603A1
公开(公告)日：2012-03-22
申请号：PCT/EP2010/065559
申请日：2010-10-15
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 , 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 (2) comprises nodes (10) 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 (312, 314, 316) 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 (322, 324, 340) 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（2）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位速率业务类型和第二位速率业务类型的节点（10）。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（312,314,316）。或者，如果波长提供了可接受的质量，则第二位速率业务类型的连接被建立（322,324,340），该波长由保护频带隔开用于连接第一码流量类型的波长的传输使用第二传输质量计算。传输计算的第二种质量不如第一传输质量计算严格，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。

8. 发明申请

WO2011031207A1 METHOD AND APPARATUS FOR PATH COMPUTATION ELEMENT AND ROUTING CONTROLLER COOPERATION 审中-公开
标题翻译：路径计算元件与路由控制器合作的方法与装置
公开(公告)号：WO2011031207A1
公开(公告)日：2011-03-17
申请号：PCT/SE2010/050901
申请日：2010-08-23
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , IOVANNA, Paola , BOTTARI, Giulio , WELIN, Annikki , CUGINI, Filippo , PAOLUCCI, Francesco , CASTOLDI, Piero
发明人： IOVANNA, Paola , BOTTARI, Giulio , WELIN, Annikki , CUGINI, Filippo , PAOLUCCI, Francesco , CASTOLDI, Piero
IPC分类号： H04L12/56 , H04Q11/00
CPC分类号： H04Q11/0062 , H04L45/00 , H04L45/10 , H04L45/121 , H04L45/123 , H04L45/42 , H04L45/62 , H04Q2011/0073
摘要： A system, method, and node for a Routing Controller, RC, (202) to obtain from a Path Computation Element, PCE, (204) network resource path metrics (308) across a plurality of domains (320, 322) in a communication network in which each domain includes a plurality of Border Nodes, BNs (324- 338). The RC (202) sends to the PCE (204) a first message requesting a first path computation between each pair of BNs. The first message contains a maximum metric-value indicating a maximum that a path computation must not exceed for a Path Computation Client, PCC, (202) to consider the path computation acceptable Next, the RC sends a second message requesting the PCE to compute a subsequent path computation for each BN pairs for which the first path computation did not exceed the maximum metric-value. The second message contains a minimum metric-value that a path metric must exceed for the PCC to consider the path metric acceptable Next, the RC receives the computed subsequent path computation between BN pairs that exceed the minimum metric-value.
摘要翻译：一种用于路由控制器RC（202）的系统，方法和节点，用于在通信中跨越多个域（320,322）从路径计算元素PCE（204）网络资源路径度量（208）获得网络资源路径度量（308）网络，其中每个域包括多个边界节点，BN（324-338）。 RC（202）向PCE（204）发送请求在每对BN之间进行第一路径计算的第一消息。第一个消息包含指示路径计算不能超过路径计算客户端PCC（202）的最大度量值，以考虑可接受的路径计算接下来，RC发送请求PCE计算的第二个消息对于第一路径计算不超过最大度量值的每个BN对的后续路径计算。第二个消息包含路径度量必须超过PCC以考虑可接受的路径度量的最小度量值。接下来，RC接收超过最小度量值的BN对之间计算的后续路径计算。

9. 发明申请

WO2013034201A1 PATH COMPUTATION IN WAVELENGTH SWITCHED OPTICAL NETWORKS 审中-公开
标题翻译：波长切换光网络中的路径计算
公开(公告)号：WO2013034201A1
公开(公告)日：2013-03-14
申请号：PCT/EP2011/069303
申请日：2011-11-03
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , MAGRI, Roberto , CUGINI, Filippo , PAOLUCCI, Francesco , SAMBO, Nicola , CASTOLDI, Piero
发明人： MAGRI, Roberto , CUGINI, Filippo , PAOLUCCI, Francesco , SAMBO, Nicola , CASTOLDI, Piero
IPC分类号： H04J14/02 , H04L12/56
CPC分类号： H04Q11/0066 , H04J14/0257 , H04J14/0258 , H04J14/026 , H04J14/0269 , H04J14/0271 , H04L45/42 , H04L45/62 , H04Q2011/0073 , H04Q2011/0083
摘要： A path computation client (PCC) (21) can request a path computation element (PCE) (22) to compute a path across a wavelength switched optical network. PCC (21) sends a request which identifies end nodes (10). The end nodes (10) can support a plurality of possible values of a transmission parameter, such as modulation format or Forward Error Correction (FEC) type. The PCE (22) computes a path between the end nodes andsends a reply to the PCC (21). The reply identifies the path between the end nodes and identifies a selected value of the transmission parameter for the computed path. The reply can comprise a spectrum assignment for the path. The reply can be a PCE Communication Protocol (PCEP) Reply message.
摘要翻译：路径计算客户机（PCC）（21）可以请求路径计算元件（PCE）（22）来计算穿过波长交换光网络的路径。 PCC（21）发送一个标识终端节点（10）的请求。端节点（10）可以支持传输参数的多个可能值，例如调制格式或前向纠错（FEC）类型。 PCE（22）计算端节点之间的路径，并向PCC发送回复（21）。回复标识了结束节点之间的路径，并标识了所计算的路径的传输参数的选定值。答复可以包括路径的频谱分配。该回复可以是PCE通信协议（PCEP）回复消息。

10. 发明申请

WO2010104434A1 GLOBAL PROVISIONING OF ZERO-BANDWIDTH TRAFFIC ENGINEERING LABEL SWITCHED PATHS 审中-公开
标题翻译：零带宽交通工程标签开关板的全球规定
公开(公告)号：WO2010104434A1
公开(公告)日：2010-09-16
申请号：PCT/SE2009/050545
申请日：2009-05-14
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , CUGINI, Filippo , WELIN, Annikki , VALCARENGHI, Luca , CASTOLDI, Piero , PAOLUCCI, Francesco
发明人： CUGINI, Filippo , WELIN, Annikki , VALCARENGHI, Luca , CASTOLDI, Piero , PAOLUCCI, Francesco
IPC分类号： H04L12/56
CPC分类号： H04L45/00 , H04L45/12 , H04L45/24 , H04L45/302 , H04L45/38 , H04L45/50 , H04L45/507
摘要： A method of load balancing zero-bandwidth Traffic Engineering Label Switching Paths, 0-bw TE LSPs1 in a communication network having a plurality of network nodes and a plurality of network links connecting the nodes. The method may be implemented in a centralized Path Computation Element, PCE, (31) or in an ingress router (32). Each equal cost path from a source node to a destination node is identified (12, 22) from network topology information. A probability of selecting each equal cost shortest path is determined (13, 23) using an iterative Global Load balancing Algorithm, GLA, and each 0-bw TE LSP is provisioned (15, 25) with a specific probability such that the 0-bw TE LSPs are uniformly distributed over all network links.
摘要翻译：在具有多个网络节点的通信网络和连接节点的多个网络链路的负载平衡零带宽流量工程标签交换路径0-bw TE LSP1的方法。该方法可以在集中式路径计算元件PCE（31）中或在入口路由器（32）中实现。从网络拓扑信息识别从源节点到目的地节点的每个相等的成本路径（12,22）。使用迭代全局负载平衡算法GLA确定选择每个相等成本最短路径的概率（13,23），并且以特定概率提供每个0-bw TE LSP（15,25），使得0-bw TE LSP均匀分布在所有网络链路上。

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