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    WDM/TDM-PON SYSTEM AND TRANSMISSION START TIME CORRECTION METHOD THEREOF
    2.
    发明申请
    WDM/TDM-PON SYSTEM AND TRANSMISSION START TIME CORRECTION METHOD THEREOF 有权

    公开(公告)号：US20170170923A1

    公开(公告)日：2017-06-15

    申请号：US15327449

    申请日：2015-07-17

    申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

    发明人： Tomoaki YOSHIDA ,  Shin KANEKO ,  Shunji KIMURA

    IPC分类号： H04J14/02 ,  H04B10/272 ,  H04L12/44 ,  H04B10/077 ,  H04J14/08 ,  H04L7/00

    CPC分类号： H04J14/0278 ,  H04B10/077 ,  H04B10/272 ,  H04J14/0246 ,  H04J14/0269 ,  H04J14/0272 ,  H04J14/0282 ,  H04J14/08 ,  H04L7/0075 ,  H04L12/44

    摘要： A transmission start time correction method of a WDM/TDM-PON system includes: a completion instruction procedure in which a station-side subscriber accommodation apparatus issues an instruction using a downstream signal for instructing a subscriber apparatus to perform wavelength switching, the downstream signal including a transmission start time of an upstream signal indicating completion of the wavelength switching of the subscriber apparatus, the upstream signal being transmitted by the subscriber apparatus after the wavelength switching; an instruction completion transmission procedure in which the subscriber apparatus transmits the upstream signal indicating the completion of the wavelength switching at a wavelength after switching at the instructed transmission start time after the wavelength switching is completed in accordance with the instruction; and a transmission start time correction procedure in which the station-side subscriber accommodation apparatus measures a reception time of the upstream signal indicating the completion of the wavelength switching received after the wavelength switching and sets a time obtained by adding a time twice a time difference between a reception time of the upstream signal indicating the completion of the wavelength switching assumed before the wavelength switching and a reception time of the upstream signal indicating the completion of the wavelength switching received after the wavelength switching to the transmission start time of the upstream signal before the wavelength switching as a new transmission start time.

    CONTROL PLANE EXTENSIONS FOR OPTICAL BROADCAST NETWORKS
    4.
    发明申请
    CONTROL PLANE EXTENSIONS FOR OPTICAL BROADCAST NETWORKS 审中-公开
    控制平面扩展光纤广播网络

    公开(公告)号：US20160315707A1

    公开(公告)日：2016-10-27

    申请号：US15204132

    申请日：2016-07-07

    申请人： Ciena Corporation

    发明人： Anurag PRAKASH ,  Mohit CHHILLAR ,  Dominic RICHENS ,  Hari SRINIVASAN

    IPC分类号： H04B10/27 ,  H04J14/02

    CPC分类号： H04B10/27 ,  H04J14/021 ,  H04J14/0217 ,  H04J14/0228 ,  H04J14/0257 ,  H04J14/0268 ,  H04J14/0269 ,  H04Q11/0067 ,  H04Q2011/0045 ,  H04Q2011/0086

    摘要： A method for bandwidth management in an optical broadcast network includes signaling, for a new optical broadcast service, from an originating node to all nodes in the optical broadcast network, wherein the signaling identifies a wavelength or portion of spectrum associated with the new optical broadcast service; at each of the nodes, checking for contention by the new optical broadcast service; responsive to identifying contention at one of the nodes, signaling the identified contention back to the originating node; and responsive to no contention at any of the nodes, processing the signaling, storing an update of the new optical broadcast service, and either forwarding the signaling to peer nodes or terminating the signaling.

    摘要翻译： 用于光学广播网络中的带宽管理的方法包括用于新的光学广播服务从始发节点向光学广播网络中的所有节点发送信令，其中信令标识与新的光学广播服务相关联的频谱的波长或部分 ; 在每个节点处检查新的光学广播服务的竞争; 响应于在一个节点处识别竞争，将所识别的争用发信号通知给始发节点; 并且响应于在任何节点处没有争用，处理信令，存储新的光广播服务的更新，以及将该信令转发到对等节点或终止信令。

    Method and system for providing an external optical data packet to a destination node of a packet optical network
    6.
    发明授权
    Method and system for providing an external optical data packet to a destination node of a packet optical network 有权
    用于向分组光网络的目的地节点提供外部光数据分组的方法和系统

    公开(公告)号：US09438367B2

    公开(公告)日：2016-09-06

    申请号：US14041760

    申请日：2013-09-30

    申请人： NTT DOCOMO, Inc.

    发明人： Qing Wei ,  Kazuyuki Kozu

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

    CPC分类号： H04J14/0201 ,  H04J14/0257 ,  H04J14/0258 ,  H04J14/0267 ,  H04J14/0269 ,  H04J14/0283 ,  H04J14/0284 ,  H04J14/0286 ,  H04Q11/0066 ,  H04Q2011/0077

    摘要： A method and a system for providing an external optical data packet to a destination node of a packet optical network are described. The packet optical network includes a plurality of nodes and a first optical data channel for optically communicating local optical data packets between the plurality of nodes. The external optical data packet is optically converted for a transmission to the destination node over a second optical data channel of the packet optical network, the first and second optical data channels being independent of each other, the converted external optical data packet is optically transferred to the packet optical network, and the converted external optical data packet is transmitted to the destination node over the second optical data channel.

    摘要翻译： 描述了一种用于向分组光网络的目的地节点提供外部光数据分组的方法和系统。 分组光网络包括多个节点和用于在多个节点之间光学地传送本地光数据分组的第一光数据信道。 外部光数据包通过分组光网络的第二光数据信道光转换为目的地节点，第一和第二光数据信道彼此独立，转换后的外部光数据包被光转换为 分组光网络和转换的外部光数据分组通过第二光数据信道被发送到目的地节点。

    In-skin wavelength division multiplex (WDM) path computation
    7.
    发明授权
    In-skin wavelength division multiplex (WDM) path computation 有权
    皮肤内波分复用（WDM）路径计算

    公开(公告)号：US09357278B2

    公开(公告)日：2016-05-31

    申请号：US13716673

    申请日：2012-12-17

    申请人： Ciena Corporation

    发明人： Gerard Leo Swinkels ,  Frederick James LaLonde ,  Michael Stanley Wilgosh

    IPC分类号： H04L12/28 ,  H04Q11/00 ,  H04L12/715 ,  H04J14/02

    CPC分类号： H04Q11/0062 ,  H04J14/0269 ,  H04L45/04 ,  H04Q2011/0073

    摘要： A method of managing an optical communication network having a plurality of nodes, the plurality of nodes including at least one regeneration site. A respective Path Computation Element (PCE) function is instantiated and associated with each regeneration site in the network. Each PCE function maintains a reach table containing information of viable optical paths extending from transceivers of its regeneration site. The PCE function implements a Recursive Path Computation algorithm to compute end-to-end routes through a physical layer of the network.

    摘要翻译： 一种管理具有多个节点的光通信网络的方法，所述多个节点包括至少一个再生站点。 相应的路径计算元素（PCE）功能被实例化并与网络中的每个再生站点相关联。 每个PCE功能维护一个到达表，其中包含从其再生位置的收发器延伸的可行光路的信息。 PCE功能实现递归路径计算算法来计算通过网络物理层的端到端路由。

    Passive optical network optical network terminal apparatus and configuration method
    9.
    发明授权
    Passive optical network optical network terminal apparatus and configuration method 有权
    无源光网络光网络终端设备及配置方法

    公开(公告)号：US09231725B2

    公开(公告)日：2016-01-05

    申请号：US14112789

    申请日：2011-04-20

    申请人： Luca Giorgi ,  Fabio Cavaliere

    发明人： Luca Giorgi ,  Fabio Cavaliere

    IPC分类号： H04B10/00 ,  H04J14/02

    CPC分类号： H04J14/0227 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0258 ,  H04J14/0267 ,  H04J14/0269 ,  H04J14/0282 ,  H04J14/0293

    摘要： A method of configuring an optical network terminal, ONT, of a wavelength division multiplexed passive optical network, WDM PON. Sequentially setting a transmission wavelength of a tunable optical filter at the ONT to one or more wavelengths of a pre-selected plurality of transmission wavelengths until a wavelength is identified for which no downstream optical signal from an optical line terminal of the WDM PON is detected. Determining whether a transmitter operable at said identified transmission wavelength is present at the OLT and is available to be assigned to communicate with the ONT. If a transmitter is determined to be present and available, maintaining the transmission wavelength of the tunable optical filter at transmission wavelength and assigning the ONT to the OLT as a subscriber at said identified transmission wavelength. If a transmitter is determined to be one of not present and not available, recommencing the method.

    摘要翻译： 一种配置波分复用无源光网络WDM PON的光网络终端ONT的方法。 顺序地将ONT处的可调谐滤光器的透射波长设置为预先选择的多个透射波长的一个或多个波长，直到识别出没有检测到来自WDM PON的光线路终端的下行光信号的波长。 确定在所述识别的传输波长处可操作的发射机是否存在于OLT处，并且可被分配用于与ONT通信。 如果发射机被确定为存在并且可用，则保持可调光滤波器的传输波长处于传输波长并且以所述识别的传输波长将ONT分配给OLT作为订户。 如果发射机被确定为不存在并且不可用，则重新启动该方法。

    Path selecting method and apparatus
    10.
    发明授权
    Path selecting method and apparatus 有权
    路径选择方法和装置

    公开(公告)号：US09215029B2

    公开(公告)日：2015-12-15

    申请号：US14087360

    申请日：2013-11-22

    申请人： HUAWEI TECHNOLOGIES CO., LTD.

    发明人： Jianrui Han ,  Mingming Xu ,  Lei Shi ,  Lin Tan

    IPC分类号： H04B10/00 ,  H04J14/02 ,  H04B10/079 ,  H04L12/721

    CPC分类号： H04J14/0227 ,  H04B10/0793 ,  H04B10/07953 ,  H04J14/0221 ,  H04J14/0257 ,  H04J14/0269 ,  H04J14/0271 ,  H04L45/62

    摘要： Embodiments of the present invention disclose a path selecting method and apparatus. The method includes: computing an end-to-end path for a newly added service according to network topology and a wavelength constraint, and assigning a wavelength to the path; computing performance of each existing service and performance of the newly added service in a network according to physical impairment information collected in the network, where the physical impairment information includes a gain reference spectrum of each optical amplifier in the network; and performing impairment check on performance of each service, and performing path selection for the newly added service according to a result of the impairment check. The apparatus includes a path computation module, a performance computation module and an impairment check module. According to the embodiments, efficiency of network update or rerouting is improved.

    摘要翻译： 本发明的实施例公开了路径选择方法和装置。 该方法包括：根据网络拓扑和波长约束计算新添加的业务的端到端路径，并向路径分配波长; 根据网络中收集的身体损伤信息，计算网络中新增服务的每个现有服务的性能和性能，其中身体损伤信息包括网络中每个光放大器的增益参考频谱; 对每个业务的性能进行减值检查，根据减值检查的结果对新增的业务进行路径选择。 该装置包括路径计算模块，性能计算模块和损伤检查模块。 根据实施例，提高了网络更新或重新路由的效率。