US 8,238,365 B2 · Method and device for supporting optical transmission network service dispatch in optical synchronization network

Abstract

A method and device for supporting optical transmission network service dispatch in an optical synchronization network, said device comprises service cards (401, 407), backplane interface (404) and a plurality of dispatch units (405, 406), wherein, the service cards (401, 407) process the service signals and distribute them to the backplane structure frame according to the bandwith of the service signals, and connect with the corresponding dispatch units (405, 406) through the backplane structure frame, and then the dispatch units (405, 406) execute the service dispatch. Said dispatch units (405, 406) can work independently from each other, and the dispatch units can be added linearly according to the bandwidth of the signal. The present invention can compatibly implement the uniform dispatch of the ODU and SDH service on the basis of the existing optical synchronization device without changing the backplane frame structure or increasing the backplane speed.

Claims10

Dependent claims

A device for supporting optical transport network service dispatch in an optical synchronization network, comprising service cards, a backplane interface and a plurality of dispatch units, wherein:

the service cards are used to process and distribute service signals, and each service card includes a service signal processing module to process the service signals and a service signal distribution unit to distribute the service signals to different backplane routings of the backplane interface, wherein the service signal distribution unit is configured to adjust a number of the service signals from the service signal distribution unit to the backplane interface according to different bandwidths of the service signals;
the backplane interface is used to receive the service signals distributed by the service cards through the backplane routings, and send the service signals to the dispatch units;
the dispatch units are connected with each service card through the backplane interface to dispatch the service signals, wherein the number of the dispatch units connected with the service cards can be linearly increased according to the different bandwidths of the service signals and the increased number of the dispatch units connected with the service cards is relevant to the maximum bandwidths of the service cards.

A method for supporting optical transport network service dispatch in an optical synchronization network, which uses service cards and dispatch units to dispatch an optical transport service, wherein the method comprises the following steps:

(1) the service cards receiving service signals, extracting an overhead and implementing corresponding supervision and management;
(2) the service cards remapping the service signals to a backplane frame structure, and distributing the service signals to different numbers of backplane signal frames according to different bandwidths of the service signals;
(3) the service cards connecting with several dispatch units through a backplane signal frame, wherein the number of the dispatch units connected with the service cards can be linearly increased according to the different bandwidths of the service signals and the increased number of the dispatch units connected with the service cards is relevant to the maximum bandwidths of the service cards;
(4) after the connection is established, all dispatch units working synchronously while independently performing their own dispatch functions;
(5) the dispatch units sending the dispatched service signals to corresponding service cards through a backplane, and outputting reversely the service signals.

2 more elements

Dependencies are inferred from the claim text.

Method and device for supporting optical transmission network service dispatch in optical synchronization network

Life of this patent

Method and device for supporting optical transmission network service dispatch in optical synchronization network

Life of this patent

Abstract

Claims10