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    Method and system for maximizing wavelength reuse in optically protected WDM networks
    1.
    发明授权
    Method and system for maximizing wavelength reuse in optically protected WDM networks 有权
    用于在光学保护的WDM网络中最大化波长重用的方法和系统

    公开(公告)号：US08305881B2

    公开(公告)日：2012-11-06

    申请号：US10919618

    申请日：2004-08-17

    申请人： Robert S. Harby ,  David S. Levy ,  Dat D. Ngo ,  James Dorian Sandoz ,  Charles Small

    发明人： Robert S. Harby ,  David S. Levy ,  Dat D. Ngo ,  James Dorian Sandoz ,  Charles Small

    IPC分类号： H04B10/17 ,  H04B10/08 ,  H04B10/12 ,  H04J14/02

    CPC分类号： H04J14/0227 ,  H04J3/085 ,  H04J3/14 ,  H04J14/0226 ,  H04J14/0241 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/0283 ,  H04J14/0295

    摘要： A method and system for maximizing wavelength reuse in an optically protected wavelength-division-multiplexed (WDM) network, the WDM network supporting a plurality of service connections, includes associating service connections supported by non-overlapping paths to form respective service channel groups, and for each service channel group, assigning at least one common wavelength channel for establishing the service connections. In addition, for each of said groups, at least one common wavelength channel is assigned for establishing a shared protection path for the service connections of each of said groups. In addition, the wavelength channels assigned for establishing the shared protection paths for each of the groups may be used for providing service connections for the WDM network when not in use as shared protection paths. However such provisional service connections are dropped when the wavelength channels are needed to establish shared protection paths. Such provisional service connections may be offered at reduced cost.

    摘要翻译： 一种用于在光保护的波分复用（WDM）网络中支持多个服务连接的WDM网络中最大化波长重用的方法和系统包括：将由非重叠路径支持的服务连接相关联以形成相应的服务信道组，以及 对于每个服务信道组，分配用于建立服务连接的至少一个公共波长信道。 此外，对于每个所述组，分配至少一个公共波长信道以建立用于每个所述组的服务连接的共享保护路径。 此外，分配用于为每个组建立共享保护路径的波长信道可用于在不用作共享保护路径时为WDM网络提供服务连接。 然而，当需要波长信道来建立共享保护路径时，这种临时业务连接被丢弃。 这样的临时服务连接可以以降低的成本提供。