NGN Resource Admission Control Feedback Mechanism
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Solution Overview
Problem
In Next Generation Networks (NGN), the current resource and admission control systems are inefficient in handling resource requests due to insufficient resource information, leading to repeated negotiations and unclear reduction requirements when resources are insufficient, resulting in inefficient resource allocation.
Innovation Solution
The method involves the resource and admission control layer including available bandwidth information in the resource request refusing message, allowing the service control layer to renegotiate based on remaining subscription and distributable bandwidth, optimizing QoS resource control and enabling rapid and efficient service access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the resource and admission control layer refuses resource requests without providing bandwidth information, then the control process is simple, but the service control layer cannot efficiently renegotiate and must perform repeated negotiations
Solution Approach 1:
The resource and admission control layer feeds back available bandwidth information to the service control layer when refusing resource requests. This feedback mechanism enables the service control layer to make informed decisions during renegotiation, avoiding blind repeated negotiations and significantly improving resource allocation efficiency while reducing negotiation time.
Solution Approach 2:
Available bandwidth information acts as an intermediary element between the resource and admission control layer and the service control layer. This information mediator enables efficient communication and coordination, allowing the service control layer to adjust resource requests based on actual network conditions without requiring complex direct control mechanisms.
2Productivity
If the system provides detailed bandwidth information in resource refusal messages, then renegotiation efficiency is improved, but the message complexity and processing overhead increase
Solution Approach 1:
The patent extracts only the essential available bandwidth information from the complex resource control system and includes it in the resource refusal message. This selective extraction approach provides sufficient information for efficient renegotiation while avoiding the complexity of transmitting complete resource status data, thus balancing renegotiation efficiency with message simplicity.
Data Source
AI summary
A processing method for the resource request in NGN, which includes the following steps: the service control layer in NGN transmits the corresponding resource request to the resource admission control layer after the service control layer receives the service request transmitted by an user; if the bandwidth applied by the resource request can not be satisfied, then the resource admission control layer adds the available bandwidth information into the corresponding resource request refusing message and transmits it to the service control layer when the resource admission control layer refuses the request. The service control layer and the user perform session negotiation of the corresponding service according to the available bandwidth information. The method can optimize QoS resource control, acquire the current resource status when the service control function is failed for resource application, negotiate QoS once again according to the current resource status, in order to performing service access rapidly and high effectively, thereby providing better service for users.