公开(公告)号：US20140023364A1

公开(公告)日：2014-01-23

申请号：US13825017

申请日：2010-10-15

申请人： Nicola Sambo ,  Giulio Bpttari ,  Piero Castoldi ,  Filippo Cugini ,  Paola Iovanna

发明人： Nicola Sambo ,  Giulio Bpttari ,  Piero Castoldi ,  Filippo Cugini ,  Paola Iovanna

IPC分类号： 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流量类型的节点。 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流量类型的连接。 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，则以由保护频带隔开的波长建立第二比特流量类型的连接， 传输计算。 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。

公开(公告)号：US08929359B2

公开(公告)日：2015-01-06

申请号：US13141223

申请日：2008-12-22

申请人： Nicola Andriolli ,  Alberto Bianchi ,  Piero Castoldi ,  Pier Giorgio Raponi

发明人： Nicola Andriolli ,  Alberto Bianchi ,  Piero Castoldi ,  Pier Giorgio Raponi

IPC分类号： H04L12/66 ,  H04J14/02 ,  H04Q11/00

CPC分类号： H04J14/0227 ,  H04L49/3045 ,  H04L49/357 ,  H04Q11/0005 ,  H04Q2011/0018 ,  H04Q2011/0039 ,  H04Q2011/005

摘要： A method (10) of configuring a synchronous optical switch to route received data cells. The synchronous optical switch comprises optical switch transmitter modules, each comprising tunable optical transmitters, optical switch receiver modules, each comprising optical receivers, and optical connections between the transmitter modules and receiver modules. For each optical switch transmitter module, the method: assigns (12) wavelengths associated with the received data cells to the transmitters such that each wavelength is assigned to a different transmitter; and generates (14) a control signal for controlling the operating wavelength of each transmitter. For each wavelength, the method: allocates (16) to each transmitter an optical connection such that each optical switch transmitter module has no more than one connection exiting it at said wavelength and each optical receiver module has no more than one connection entering it at said wavelength; and generates (18) a control signal for connecting each transmitter to the respective optical connection.

摘要翻译： 一种配置同步光交换机以路由接收的数据信元的方法（10）。 同步光开关包括光开关发射器模块，每个模块包括可调光发射器，光开关接收器模块，每个包括光接收器，以及发射器模块和接收器模块之间的光连接。 对于每个光开关发射器模块，该方法：将与所接收的数据单元相关联的（12）波长分配给发射机，使得每个波长被分配给不同的发射机; 并产生用于控制每个发射机的工作波长的控制信号（14）。 对于每个波长，该方法：向每个发射机分配（16）光学连接，使得每个光学开关发射器模块在所述波长处具有不超过一个离开它的连接，并且每个光接收器模块具有不超过一个在所述波长处进入的连接 波长; 并且产生（18）用于将每个发射器连接到相应的光学连接的控制信号。

公开(公告)号：US08724988B2

公开(公告)日：2014-05-13

申请号：US13319067

申请日：2009-07-22

申请人： Nicola Andriolli ,  Antonella Bogoni ,  Alberto Bianchi ,  Piero Castoldi ,  Luca Poti ,  Pier Giorgio Raponi

发明人： Nicola Andriolli ,  Antonella Bogoni ,  Alberto Bianchi ,  Piero Castoldi ,  Luca Poti ,  Pier Giorgio Raponi

IPC分类号： H04J14/00 ,  H04B10/20

CPC分类号： H04Q11/0005 ,  H04L12/6402 ,  H04Q11/0066 ,  H04Q2011/0009 ,  H04Q2011/0015 ,  H04Q2011/0018 ,  H04Q2011/0022 ,  H04Q2011/0032 ,  H04Q2011/0039

摘要： A synchronous packet switch comprises output modules, input modules, optical connections and a switch control unit. The output modules comprise optical receivers each configured to receive optical signals at a different wavelength. The input modules receive electric signals carrying data cells to be routed. Each input module comprises optical transmitters, each configurable to generate an optical signal at a different wavelength, and routing apparatus comprising output ports. Each output module has at least one output port allocated to it. The routing apparatus is configurable to route a received optical signal to a selected output port. The optical connections are arranged to couple output ports to respective output modules. The switch control unit controls routing of the optical signals from the transmitters to the output modules and generates a routing control signal for configuring the routing apparatus to route an optical signal from a transmitter to a selected output port.

摘要翻译： 同步分组交换机包括输出模块，输入模块，光学连接和开关控制单元。 输出模块包括各自被配置为接收不同波长的光信号的光接收器。 输入模块接收携带要路由的数据单元的电信号。 每个输入模块包括光发送器，每个光发送器可配置为产生不同波长的光信号，以及包括输出端口的路由设备。 每个输出模块至少有一个分配给它的输出端口。 路由设备可配置为将接收到的光信号路由到所选择的输出端口。 光学连接被布置成将输出端口耦合到相应的输出模块。 开关控制单元控制从发射机到输出模块的光信号的路由，并产生用于配置路由设备以将光信号从发射机路由到所选输出端口的路由控制信号。

公开(公告)号：US20130064544A1

公开(公告)日：2013-03-14

申请号：US13581372

申请日：2010-03-25

申请人： Pier Giorgio Raponi ,  Nicola Andriolli ,  Piero Castoldi ,  Marzio Puleri

发明人： Pier Giorgio Raponi ,  Nicola Andriolli ,  Piero Castoldi ,  Marzio Puleri

IPC分类号： H04J14/00

CPC分类号： H04L47/215 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0221 ,  H04J14/0257 ,  H04J14/0267 ,  H04J14/0269 ,  H04J14/0275 ,  H04L12/433 ,  H04L45/62

摘要： A node (260, 50) for a multi-token optical communications network has optical channels between the node and other nodes, each channel having a token (T1, T2, T3), passed between nodes, to indicate that a corresponding optical channel is available for transmission during a token holding time. The node has a transmitter (280) for transmitting packets over the optical channels, a buffer (170, 270) for queuing packets before transmission, and a transmit controller (170, 290) configured to control the buffer to forward an initial packet or packets from the buffer to the transmitter once a token has been received. The transmit controller determines how much of the token holding time remains after the transmission of the initial packet or packets, and then controls the buffer to forward a further packet according to the remaining token holding time. A maximum packet delay can be reduced where there is asymmetric traffic. A token holding time can be different for different nodes.

摘要翻译： 用于多令牌光通信网络的节点（260,50）在节点和其他节点之间具有光信道，每个信道具有在节点之间传递的令牌（T1，T2，T3），以指示对应的光信道是 可用于在令牌保持时间期间传输。 节点具有用于通过光信道发送分组的发射机（280），用于在传输之前对分组进行排队的缓冲器（170,270）;以及发射控制器（170,290），被配置为控制缓冲器转发初始分组或分组 一旦接收到令牌，就从缓冲区到发射机。 发送控制器确定在发送初始分组或分组之后剩余多少令牌保持时间，然后根据剩余令牌保持时间来控制缓冲器转发另外的分组。 在存在不对称流量的情况下，可以减少最大分组延迟。 不同节点的令牌保持时间可能不同。

公开(公告)号：US20100034532A1

公开(公告)日：2010-02-11

申请号：US12440778

申请日：2006-09-11

申请人： Paolo Ghelfi ,  Filippo Cuglini ,  Tomasz Rogowski ,  Piero Castoldi ,  Rodolfo Di Muro ,  Bimal Nayar ,  Karin Essner

发明人： Paolo Ghelfi ,  Filippo Cuglini ,  Tomasz Rogowski ,  Piero Castoldi ,  Rodolfo Di Muro ,  Bimal Nayar ,  Karin Essner

IPC分类号： H04J14/00 ,  H04B10/08 ,  H04B17/00

CPC分类号： H04Q11/0005 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0206 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0217 ,  H04J14/0219 ,  H04J14/0221 ,  H04J14/0284 ,  H04J14/0293 ,  H04J14/0297 ,  H04Q2011/0015 ,  H04Q2011/0043

摘要： The invention relates to a communications node (10, 90, 100) for routing a plurality of Wavelength Division Multiplexed (WDM) optical signals, the node having a plurality of line units (12) between its inputs and outputs, each line unit including a splitter (14) and a Wavelength Selective Switch (WSS) (16), wherein the splitter (14) is arranged to split an incoming WDM signal into a plurality of WDM signals and to pass them to each WSS in the plurality of line units, each WSS (16) being arranged to selectively route any one or more channels of its received WDM signals to its associated output. Such an arrangement has the advantage of providing a more cost effective realisation of a node with a high nodal degree. The invention provides a technical solution to the problem of connecting a plurality of inputs to a plurality of outputs in a multi-port WDM node. The node has particular application in a mesh network where the nodal degree may be high. Using WSS technology avoids the requirement for many blockers to be used due to the inherent capability of WSSs to selectively block input channels.

摘要翻译： 本发明涉及用于路由多个波分复用（WDM）光信号的通信节点（10,90,100），该节点在其输入和输出之间具有多个线路单元（12），每个线路单元包括一个 分离器（14）和波长选择开关（WSS）（16），其中分配器（14）被布置成将输入的WDM信号分割成多个WDM信号并将其传递到多个线路单元中的每个WSS， 每个WSS（16）被布置成选择性地将其接收到的WDM信号的一个或多个信道路由到其相关联的输出。 这种布置具有提供具有高节点度的节点的更具成本效益的实现的优点。 本发明提供了将多个输入连接到多端口WDM节点中的多个输出的问题的技术方案。 节点在网状网络中具有特殊应用，其中节点度可能较高。 使用WSS技术避免了由于WSS的固有能力来选择性地阻止输入通道而需要使用许多阻塞器。

公开(公告)号：US08897643B2

公开(公告)日：2014-11-25

申请号：US13581372

申请日：2010-03-25

申请人： Pier Giorgio Raponi ,  Nicola Andriolli ,  Piero Castoldi ,  Marzio Puleri

发明人： Pier Giorgio Raponi ,  Nicola Andriolli ,  Piero Castoldi ,  Marzio Puleri

IPC分类号： H04L12/819 ,  H04J14/02 ,  H04L12/721 ,  H04L12/433

CPC分类号： H04L47/215 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0221 ,  H04J14/0257 ,  H04J14/0267 ,  H04J14/0269 ,  H04J14/0275 ,  H04L12/433 ,  H04L45/62

摘要： A node (260, 50) for a multi-token optical communications network has optical channels between the node and other nodes, each channel having a token (T1, T2, T3), passed between nodes, to indicate that a corresponding optical channel is available for transmission during a token holding time. The node has a transmitter (280) for transmitting packets over the optical channels, a buffer (170, 270) for queuing packets before transmission, and a transmit controller (170, 290) configured to control the buffer to forward an initial packet or packets from the buffer to the transmitter once a token has been received. The transmit controller determines how much of the token holding time remains after the transmission of the initial packet or packets, and then controls the buffer to forward a further packet according to the remaining token holding time. A maximum packet delay can be reduced where there is asymmetric traffic. A token holding time can be different for different nodes.

摘要翻译： 用于多令牌光通信网络的节点（260,50）在节点和其他节点之间具有光信道，每个信道具有在节点之间传递的令牌（T1，T2，T3），以指示相应的光信道是 可用于在令牌保持时间期间传输。 节点具有用于通过光信道发送分组的发射机（280），用于在传输之前对分组进行排队的缓冲器（170,270）;以及发射控制器（170,290），被配置为控制缓冲器转发初始分组或分组 一旦接收到令牌，就从缓冲区到发射机。 发送控制器确定在发送初始分组或分组之后剩余多少令牌保持时间，然后根据剩余令牌保持时间来控制缓冲器转发另外的分组。 在存在不对称流量的情况下，可以减少最大分组延迟。 不同节点的令牌保持时间可能不同。

公开(公告)号：US20090060501A1

公开(公告)日：2009-03-05

申请号：US12183637

申请日：2008-07-31

申请人： Antonella Bogoni ,  Luca Poti ,  Nicola Andriolli ,  Mirco Scaffardi ,  Gianluca Berrettini ,  Piero Castoldi

发明人： Antonella Bogoni ,  Luca Poti ,  Nicola Andriolli ,  Mirco Scaffardi ,  Gianluca Berrettini ,  Piero Castoldi

IPC分类号： H04J14/00

CPC分类号： H04Q11/0005 ,  H04Q11/0066 ,  H04Q2011/0041 ,  H04Q2011/005 ,  H04Q2011/0054

摘要： An all-optical contention manager includes at least two inputs and at least two outputs. The outputs are configured to output signals to a Banyan switch. The contention manager detects and resolves routing contentions between incoming optical signals prior to outputting the signals to the Banyan switch. The signals have tags that include routing information. A photonic comparator in the contention manager compares the tags of incoming optical signals in order to detect contention.

摘要翻译： 全光争用管理器至少包括两个输入和至少两个输出。 输出被配置为向Banyan开关输出信号。 竞争管理器在将信号输出到悦榕庄交换机之前检测并解决输入光信号之间的路由争用。 这些信号具有包括路由信息的标签。 竞争管理器中的光子比较器比较输入光信号的标签，以便检测竞争。

公开(公告)号：US08787756B2

公开(公告)日：2014-07-22

申请号：US12183637

申请日：2008-07-31

申请人： Antonella Bogoni ,  Luca Poti ,  Nicola Andriolli ,  Mirco Scaffardi ,  Gianluca Berrettini ,  Piero Castoldi

发明人： Antonella Bogoni ,  Luca Poti ,  Nicola Andriolli ,  Mirco Scaffardi ,  Gianluca Berrettini ,  Piero Castoldi

IPC分类号： H04J14/00 ,  H04B10/00

CPC分类号： H04Q11/0005 ,  H04Q11/0066 ,  H04Q2011/0041 ,  H04Q2011/005 ,  H04Q2011/0054

摘要： An all-optical contention manager includes at least two inputs and at least two outputs. The outputs are configured to output signals to a Banyan switch. The contention manager detects and resolves routing contentions between incoming optical signals prior to outputting the signals to the Banyan switch. The signals have tags that include routing information. A photonic comparator in the contention manager compares the tags of incoming optical signals in order to detect contention.

摘要翻译： 全光争用管理器至少包括两个输入和至少两个输出。 输出被配置为向Banyan开关输出信号。 竞争管理器在将信号输出到悦榕庄交换机之前检测并解决输入光信号之间的路由争用。 这些信号具有包括路由信息的标签。 竞争管理器中的光子比较器比较输入光信号的标签，以便检测竞争。

公开(公告)号：US08229300B2

公开(公告)日：2012-07-24

申请号：US12027579

申请日：2008-02-07

申请人： Antonella Bogoni ,  Luca Poti ,  Nicola Andriolli ,  Mirco Scaffardi ,  Gianluca Berettini ,  Piero Castoldi

发明人： Antonella Bogoni ,  Luca Poti ,  Nicola Andriolli ,  Mirco Scaffardi ,  Gianluca Berettini ,  Piero Castoldi

IPC分类号： H04J14/00

CPC分类号： H04Q11/0005 ,  H04Q11/0066 ,  H04Q2011/0041 ,  H04Q2011/0058

摘要： An optical switch controller controls an optical interconnection network that variably connects at least one input data channel to a plurality of outputs channels via at least one switching element. An address reader module has at least one semiconductor optical amplifier optically processes an optical signal. The address reader module obtains information by reading a data tag from the input data channel, and outputs an address control signal based on the information. The address control signal can be used to control switching elements in the optical interconnection network.

摘要翻译： 光开关控制器控制光互连网络，其经由至少一个开关元件将至少一个输入数据信道可变地连接到多个输出信道。 地址读取器模块具有至少一个半导体光放大器，光学处理光信号。 地址读取器模块通过从输入数据信道读取数据标签来获得信息，并且基于该信息输出地址控制信号。 地址控制信号可用于控制光互连网络中的开关元件。

公开(公告)号：US20120121262A1

公开(公告)日：2012-05-17

申请号：US13319067

申请日：2009-07-22

申请人： Nicola Andriolli ,  Antonella Bogoni ,  Alberto Bianchi ,  Piero Castoldi ,  Luca Poti ,  Pier Giorgio Raponi

发明人： Nicola Andriolli ,  Antonella Bogoni ,  Alberto Bianchi ,  Piero Castoldi ,  Luca Poti ,  Pier Giorgio Raponi

IPC分类号： H04J14/02

CPC分类号： H04Q11/0005 ,  H04L12/6402 ,  H04Q11/0066 ,  H04Q2011/0009 ,  H04Q2011/0015 ,  H04Q2011/0018 ,  H04Q2011/0022 ,  H04Q2011/0032 ,  H04Q2011/0039

摘要： A synchronous packet switch comprises output modules, input modules, optical connections and a switch control unit. The output modules comprise optical receivers each configured to receive optical signals at a different wavelength. The input modules receive electric signals carrying data cells to be routed. Each input module comprises optical transmitters, each configurable to generate an optical signal at a different wavelength, and routing apparatus comprising output ports. Each output module has at least one output port allocated to it. The routing apparatus is configurable to route a received optical signal to a selected output port. The optical connections are arranged to couple output ports to respective output modules. The switch control unit controls routing of the optical signals from the transmitters to the output modules and generates a routing control signal for configuring the routing apparatus to route an optical signal from a transmitter to a selected output port.

摘要翻译： 同步分组交换机包括输出模块，输入模块，光学连接和开关控制单元。 输出模块包括各自被配置为接收不同波长的光信号的光接收器。 输入模块接收携带要路由的数据单元的电信号。 每个输入模块包括光发送器，每个光发送器可配置为产生不同波长的光信号，以及包括输出端口的路由设备。 每个输出模块至少有一个分配给它的输出端口。 路由设备可配置为将接收到的光信号路由到所选择的输出端口。 光学连接被布置成将输出端口耦合到相应的输出模块。 开关控制单元控制从发射机到输出模块的光信号的路由，并产生用于配置路由设备以将光信号从发射机路由到所选输出端口的路由控制信号。