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    • 6. 发明申请
    • Optical network equipment and optical network
    • 光网络设备和光网络
    • US20070014510A1
    • 2007-01-18
    • US11485300
    • 2006-07-13
    • Kazuhiro Kusama
    • Kazuhiro Kusama
    • G02B6/26
    • H04Q11/0062H04B10/572H04J14/0201H04J14/0221H04J14/0227H04J14/0241H04J14/0258H04J14/0267H04J14/0278H04Q2011/0011H04Q2011/0049H04Q2011/0079H04Q2011/0083H04Q2011/0088
    • A position in which an optical signal characteristic is compensated in an optical network can be chosen. An optical network equipment measures an optical signal characteristic for each wavelength, and notifies an optical network equipment on a communication path of an optical signal characteristic index and control necessity determination threshold. In an upstream portion of the communication path, the optical network equipment (a start point or the like of the communication path) that can compensate the optical signal characteristic for each wavelength determines the necessity to eliminate a deviation between wavelengths and the position to eliminate it, using the optical signal characteristic index and the control necessity determination threshold. The equipment determines a compensator to be controlled, and a compensation amount, based on the result, and commands an optical network equipment including the compensator to control the compensator, using a communication path establishment control protocol such as GMPLS-extended RSVP-TE.
    • 可以选择在光网络中补偿光信号特性的位置。 光网络设备测量每个波长的光信号特性,并将通信路径上的光网络设备通知光信号特性指标和控制必要性判定阈值。 在通信路径的上游部分中,可以补偿每个波长的光信号特性的光网络设备(通信路径的起始点等)决定了消除波长之间的偏差和消除它的位置的必要性 ,使用光信号特性指标和控制必要性判定阈值。 设备根据结果确定要控制的补偿器和补偿量,并使用通信路径建立控制协议(如GMPLS扩展的RSVP-TE)命令包括补偿器的光网络设备来控制补偿器。
    • 8. 发明授权
    • Communication node and communication system
    • 通信节点和通信系统
    • US08988989B2
    • 2015-03-24
    • US13611288
    • 2012-09-12
    • Machiko AsaieKazuhiro KusamaNaomichi Nonaka
    • Machiko AsaieKazuhiro KusamaNaomichi Nonaka
    • G01R31/08G06F11/14H04L12/24
    • G06F11/1443H04L41/0654H04L41/0677
    • Communication node including a transmission equipment which communicates user data with transmission equipment of an adjacent node, and a controller which communicates a message with a controller of the adjacent node and which manages the transmission equipment of its own node, wherein: a controller of the node detects existence or nonexistence of fault of a controller of the adjacent node on the basis of situation of receiving a message sent from the controller of the adjacent node; when the controller of the node detects the fault of the controller of the adjacent node, the controller of the node issues a state reference notice to a transmission equipment of its own node and checks existence or nonexistence of fault alert detection; in a case where the fault alert detection of the transmission equipment of the node does not exist, the controller of the node maintains a path state of the node.
    • 通信节点包括将用户数据与相邻节点的传输设备进行通信的传输设备,以及与邻接节点的控制器通信消息并管理其自身节点的传输设备的控制器,其中:节点的控制器 基于接收从相邻节点的控制器发送的消息的情况,检测相邻节点的控制器的故障的存在或不存在; 当节点的控制器检测到相邻节点的控制器的故障时,节点的控制器向其自身节点的传输设备发出状态参考通知,并检查故障警报检测的存在或不存在; 在不存在节点的传输设备的故障警报检测的情况下,节点的控制器维护节点的路径状态。
    • 9. 发明授权
    • Communication network system, path calculation device, and communication path establishment control method
    • 通信网络系统,路径计算设备和通信路径建立控制方法
    • US08340104B2
    • 2012-12-25
    • US12481621
    • 2009-06-10
    • Kazuhiro KusamaShuji Maeda
    • Kazuhiro KusamaShuji Maeda
    • H04L12/28
    • H04L45/44G06F15/16H04L45/00H04L45/02H04L45/50
    • In an MPLS or GMPLS network, links for hops of a communication path and adaptation to be implemented on the border of management domains or layers are automatically appropriately selected based on a service type or a requirement for maintenance. First, a unit that appends an identifier of a service to be provided and an attribute of the service to a communication path establishment control message, and requests path establishment is installed in a source node. Secondly, a unit that determines a requirement for maintenance of the communication path and adaptation on the basis of the service identifier and/or service attribute is installed in each node. Thirdly, maintenance attributes of network resources are compared with the requirement for maintenance in order to determine links and nodes through which the communication path passes. The determined links, nodes, and adaptation are designated as action parameters for a switching unit and/or interface unit.
    • 在MPLS或GMPLS网络中,根据业务类型或维护需求,自动适当选择通信路径跳跃和管理域或层边界上实现的自适应链路。 首先,在源节点中安装将要提供的服务的标识符和服务的属性附加到通信路径建立控制消息以及请求路径建立的单元。 其次,根据服务标识符和/或服务属性,确定维护通信路径和适应的要求的单元被安装在每个节点中。 第三,将网络资源的维护属性与维护要求进行比较,以确定通信路径通过的链路和节点。 确定的链路,节点和适配被指定为用于交换单元和/或接口单元的动作参数。