Emergency service-oriented temporary bandwidth allocation method and system thereof

Abstract

The invention belongs to the field of communication, and relates to an emergency service-oriented temporary bandwidth allocation method and a system thereof. The method is characterized by comprising the following steps: during the non-emergency communication period, taking available bandwidth in a link as the maximum available bandwidth for all services provided by a network; in case of an emergency, reserving bandwidth capacity according to bandwidth capacity restriction established by a network administrator, wherein the reserved capacity part can ensure emergency service session to access to the network; if emergency service bandwidth exceeds the reserved capacity, removing session connection of normal services in part of allocated resources to meet the demand of the emergency service bandwidth; and after emergency service communication is completed, restoring to a normal communication status again. The system comprises an identity authentication and policy matching module, an admission control module, an admission request convergence module, a routing module, a time control module and a policy library. By adopting the method and the system of the invention, emergency communication services can be preferentially processed without network resource waste.

Description

technical field [0001] The invention belongs to the communication field, and relates to a temporary bandwidth allocation method and system for emergency services. Background technique [0002] With the continuous increase of the scale of the Internet, various network services are constantly emerging, and various advanced multimedia systems are flourishing. Multimedia services occupy a large amount of bandwidth. It is especially important to ensure reliable transmission of key services in the existing network. Difficulties, especially in the period of emergency communications, the requirement that the network can guarantee the service quality of emergency services cannot be met. [0003] The bandwidth allocation model uses planning capacity technology to set bandwidth constraints for different service flows, which can avoid excessive use of network resources by a single service flow, which depends on the selected bandwidth allocation model. The concept of the bandwidth alloc...

AI Technical Summary

Problems solved by technology

[0004] Emergency communication services are characterized by suddenness and short duration. The disadvantages of the existing bandwidth allocation models (maximum allocation model, Russian matryoshka model, and priority spanning model) are: the network is reserved for priority services most of the time. resources are idle and cannot effectively use network resources

Although this static allocation method can improve the ability of emergency services to access the network to a certain extent, it is easy to cause waste of resources and cannot meet the changing bandwidth requirements in a timely manner.

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