Visited Location PD-FE QoS Policy Negotiation for Roaming Resource Admission
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Solution Overview
Problem
In a roaming scenario, the existing resource admission control mechanisms lack a negotiation mechanism between the visited location PD-FE and the home location PD-FE, resulting in a low success rate of resource requests due to passive processing and lack of QoS policy modification.
Innovation Solution
Implementing a negotiation mechanism between the visited location PD-FE and the home location PD-FE, where the visited location PD-FE can modify or feed back acceptable QoS policy information to the home location PD-FE, allowing for revised resource requests based on available resources and local policies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the visited location PD-FE passively processes resource requests from the home location PD-FE without negotiation, then the processing simplicity is maintained, but the resource request success rate deteriorates due to inability to modify QoS policy based on local conditions
Solution Approach 1:
The patent transforms the static passive processing mode into a dynamic negotiation mode. The visited location PD-FE can now actively modify QoS policy parameters based on real-time local network conditions, resource availability, and policy constraints. This dynamic adjustment capability enables the system to adapt resource allocation to actual conditions, thereby improving the resource request success rate while managing the added complexity through structured negotiation protocols.
2Adaptability or versatility
If the visited location PD-FE modifies QoS policy information based on local conditions, then the adaptability to local network conditions is improved, but the coordination complexity with the home location PD-FE deteriorates
Solution Approach 1:
The patent implements a feedback mechanism where the visited location PD-FE sends modified QoS policy information back to the home location PD-FE. This feedback loop enables the home location PD-FE to understand local network conditions and adjust its resource allocation decisions accordingly. The structured feedback process allows the system to maintain coordination while improving adaptability to local conditions, as the home location PD-FE can make informed decisions based on the visited location's resource status and policy modifications.
3Productivity
If the visited location PD-FE sends acceptable QoS policy information back to the home location PD-FE, then the resource allocation efficiency is improved, but the information exchange overhead deteriorates
Solution Approach 1:
The patent applies preliminary action by having the visited location PD-FE prepare and send acceptable QoS policy information in advance, before actual resource allocation decisions are made. This allows the home location PD-FE to pre-evaluate potential resource allocations based on the visited location's conditions and policy constraints. By performing this information exchange preliminarily, the system reduces the need for multiple back-and-forth negotiations during actual resource allocation, thereby improving efficiency while managing information overhead through advance preparation.
Data Source
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AI summary
A method and system for resource admission control are disclosed. During a resource request process in the scenario of customer roaming, a visited location PD-FE sends a modified QoS policy or acceptable QoS policy information to a home location PD-FE when it cannot accept a resource request sent by the home location PD-FE, and the home location PD-FE makes a resource policy decision again and requests resources again according to the modified QoS policy, or when the home location PD-FE receives the next service request, it makes a resource policy decision according to the QoS policy information acceptable to the visited location PD-FE and sends a resource request to the visited location PD-FE. Both resource requests in the two cases are made based on the resource condition of the visited location PD-FE, therefore the visited location PD-FE generally can accept the requests after receiving them, thereby improving the success possibility of resource requests.