Method for realizing resource consistence between SPDF and BGF

Abstract

The invention discloses the method acquiring the resource uniformity based on the position between decision-making identifying function entity of business and boundary gateway function entity of the business. The method comprises the following steps: the step S302: BGF transmits resource synchronous request to SPDF; the step S304: after receiving resource synchronous request, the SPDF implements synchronous preparation processing and returns resource synchronous request response to BGF under the condition of completion of preparation processing; the step S306: after receiving the resource synchronous request response, the BGF transmits resource synchronous information to the SPDF; wherein the resource synchronous information comprises resource condition parameter of the BGF; the step S308: the SPDF implements resource synchronizing according to the resource condition parameter in the resource synchronous information. The invention can guarantees the uniformity of resource of the SPDF and the BGF; furthermore, the invention can restore in time under the condition of non-uniformity of the SPDF resource and the BGF resource, which guarantees the robustness and stability of system.

Description

technical field [0001] The present invention relates to the communication field, and in particular, relates to a resource consistency between a Service-based Policy Decision Function (SPDF for short) and a Border Gateway Function (BGF for short). method. Background technique [0002] RACS (Resource and Admission Control Subsystem, RACS for short) is a subsystem in the NGN (Next Generation Network, NGN for short) architecture, responsible for policy control, resource reservation and submission control. The RACS system is located between the IMS (IPMultimedia Core Network Subsystem, referred to as IMS) core network control layer and the bearer layer, and shields the core control layer from the difference of the underlying bearer to complete the control of the bearer. [0003] Fig. 1 shows the functional structure of the RACS in the related art. As shown in Figure 1, it includes access network resources, A-RACF, and SPDF, and other entities related to it include access points...

AI Technical Summary

Problems solved by technology

However, when the reply response of BGF is lost under certain circumstances (for example, network congestion and packet loss, etc.), it may cause resource information inconsistency between SPDF and BGF, which will cause serious adverse effects on subsequent resource authorization. (For example, if SPDF thinks that the BGF has resources available but the actual BGF has no resources, the authorization fails; if SPDF thinks that the BGF has no resources available but the actual BGF still has resources available, the resources will hang)

[0012] From the above analysis, it can be seen that the current SPDF's resource authorization management for BGF is flawed, and it is easy for the resources of the two to be out of sync.

Moreover, when there is an inconsistency between SPDF and BGF resources, it will have an impact on system functions

[0013] However, there is no technical solution that can solve the problem of inconsistency between SPDF and BGF resources

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