Configuring synchronous optical switches
    1.
    发明授权
    Configuring synchronous optical switches 有权
    配置同步光开关

    公开(公告)号:US08929359B2

    公开(公告)日:2015-01-06

    申请号:US13141223

    申请日:2008-12-22

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

    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。

    CONFIGURING SYNCHRONOUS OPTICAL SWITCHES
    2.
    发明申请
    CONFIGURING SYNCHRONOUS OPTICAL SWITCHES 有权
    配置同步光开关

    公开(公告)号:US20120008946A1

    公开(公告)日:2012-01-12

    申请号:US13141223

    申请日:2008-12-22

    IPC分类号: H04J14/02

    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; 并且产生用于控制每个发送器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。

    Synchronous packet switches
    3.
    发明授权
    Synchronous packet switches 失效
    同步分组交换机

    公开(公告)号:US08724988B2

    公开(公告)日:2014-05-13

    申请号:US13319067

    申请日:2009-07-22

    IPC分类号: H04J14/00 H04B10/20

    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。

    SYNCHRONOUS PACKET SWITCHES
    4.
    发明申请
    SYNCHRONOUS PACKET SWITCHES 失效
    同步分组开关

    公开(公告)号:US20120121262A1

    公开(公告)日:2012-05-17

    申请号:US13319067

    申请日:2009-07-22

    IPC分类号: H04J14/02

    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。

    Control of token holding in multi-token optical network
    5.
    发明授权
    Control of token holding in multi-token optical network 有权
    令牌保持在多令牌光网络中的控制

    公开(公告)号:US08897643B2

    公开(公告)日:2014-11-25

    申请号:US13581372

    申请日:2010-03-25

    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。

    CONTROL OF TOKEN HOLDING IN MULTI-TOKEN OPTICAL NETWORK
    6.
    发明申请
    CONTROL OF TOKEN HOLDING IN MULTI-TOKEN OPTICAL NETWORK 有权
    在多光盘网络中控制TOKEN控制

    公开(公告)号:US20130064544A1

    公开(公告)日:2013-03-14

    申请号:US13581372

    申请日:2010-03-25

    IPC分类号: H04J14/00

    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。

    CONTROL OF BUFFERING IN MULTI-TOKEN OPTICAL NETWORK FOR DIFFERENT TRAFFIC CLASSES
    7.
    发明申请
    CONTROL OF BUFFERING IN MULTI-TOKEN OPTICAL NETWORK FOR DIFFERENT TRAFFIC CLASSES 审中-公开
    用于不同运输类别的多光网络缓冲控制

    公开(公告)号:US20130094858A1

    公开(公告)日:2013-04-18

    申请号:US13703398

    申请日:2010-08-23

    IPC分类号: H04Q11/00 H04J14/02

    摘要: A node (260) for an optical communications network in which a token is passed between nodes, indicating that a corresponding optical channel is available for transmission during a token holding time while that node holds that token, until it passes the token to another node. A transmit controller (290) determines a traffic class of said packet and controls a buffer to forward a packet from the buffer to the transmitter according to the traffic class, if there is sufficient of the token holding time remaining before the received token must be passed on to another node for said packet to be transmitted by the transmitter over an optical channel corresponding to the received token. By having the packet forwarding dependent on traffic class, packets can be handled differently to suit different characteristics of the traffic classes.

    摘要翻译: 一种用于光通信网络的节点(260),其中令牌在节点之间传递,指示对应的光信道可用于在该节点保存该令牌的令牌保持时间期间进行传输,直到其将令牌传递到另一个节点。 传输控制器(290)确定所述分组的业务类别并且控制缓冲器以根据业务类别将分组从缓冲器转发到发射机,如果在接收到的令牌必须被传递之前剩余足够的令牌保持时间 通过与所接收的令牌相对应的光信道由发射机发送所述分组的另一个节点。 通过使分组转发取决于流量类别,可以不同地处理分组以适应流量类别的不同特征。

    Optical switch controller
    10.
    发明授权
    Optical switch controller 失效
    光开关控制器

    公开(公告)号:US08229300B2

    公开(公告)日:2012-07-24

    申请号:US12027579

    申请日:2008-02-07

    IPC分类号: H04J14/00

    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。