Dynamic allocation method for space/time division cross time slot resource of synchronous digital hierarchy equipment

Abstract

A dynamic distribution method for synchronous digital system equipment space-time division cross timeslot resource is provided. The service data of the whole network collocated on a network management system is sent down to a network element. The network element adjusts the service collocation data. The states of all the space-time division resources are marked. One service collocation record is obtained and the required space-time timeslot resource is appointed. Whether the time division resource distribution is needed is determined. Whether the timeslot has already previously been distributed with resource is determined. Whether the distributable resources are available is determined; if the distributable resources are available, the occupation marks are distributed and given to the resources and the timeslot information is set down. The space-time division resource states are renovated, the time division resources no longer to be used are released and the resources as usable are remarked. The invention utilizes most of the node cross connection ability to ensure that the equipment have high service transmission rate and low blocking rate. The problem that the cross connection ability of the space-time division chip is not enough is effectively solved and the service break is avoided.

Description

technical field [0001] The invention relates to a method for allocating space-time cross-connection time slot resources of SDH (Synchronous Digital Hierarchy) series transmission equipment, which is suitable for realizing the cross-connection matrix in the form of S-T-S (space division-time division-space division). Background technique [0002] The SDH system is a transmission device at the physical layer, without complex routing protocols, and only provides point-to-point service transmission, and does not broadcast or multicast services in principle. The routing of its business is semi-permanent, that is, the network management can be used to change the business flow, but it cannot be done dynamically in real time. The semi-permanent link establishment is performed by the space-division crossover and time-division crossover in the system. Space division, time division matrix capacity and form not only determine the flexibility of its business link establishment but also d...

AI Technical Summary

Problems solved by technology

Due to the limitation of the space-time cross-connect capability of the equipment, there may be congestion in the time-division cross-connect matrix

[0003] In the prior art, the allocation of space-time crossover time slot resources of SDH equipment is fixed allocation. Even if time-division resources are not used, they will not be released, and low-order services that do not need time-division crossover are not processed, and time-division resources are still occupied. , so the limited time-division resources cannot be fully utilized

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