Network Re-Selection Based on Resource Availability
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Solution Overview
Problem
Current communication network handover and session establishment procedures do not efficiently manage resource changes in multi-access network environments, leading to suboptimal resource allocation and increased operational costs, as they fail to consider alternative networks with available resources when the connected network lacks sufficient resources.
Innovation Solution
Introducing a new reference point between the policy control function for resource reservation and the network re-selection decision function, allowing for automatic re-selection of communication networks based on changing resource requirements, enabling handovers to networks with sufficient bandwidth or authorization when the current network is insufficient.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If handover procedures are triggered based on physical parameters like signal strength, then the handover mechanism is simple to implement, but it fails to consider network resource capacity and operational costs in multi-access network environments
Solution Approach 1:
The patent extends the handover decision parameters beyond physical signal strength to include network resource capacity, available bandwidth, and operational cost metrics. This allows the handover mechanism to adapt to both physical conditions and network resource conditions, resolving the contradiction between simplicity and adaptability by systematically incorporating additional parameters into the existing handover framework
Solution Approach 2:
The patent introduces an intermediary network entity that collects information about resource capacity and operational costs from multiple access networks and presents this information to the mobile device or network controller. This intermediary facilitates the integration of resource-aware decision-making without requiring complex changes to the basic handover mechanism, thus maintaining simplicity while enhancing adaptability
2Ease of operation
If session establishment procedures reserve resources only on the currently connected access network, then the procedure is straightforward, but the session may be released even when other access networks have available resources
Solution Approach 1:
The patent performs preliminary resource reservation checks on multiple access networks before establishing the session. By proactively identifying alternative networks with available resources and pre-reserving capacity, the system ensures session continuity is maintained even if the currently connected network becomes unavailable, thus improving reliability while keeping the procedure straightforward through advance planning
Solution Approach 2:
The patent implements dynamic resource reservation that can be adjusted based on real-time network conditions. The system continuously monitors resource availability on alternative access networks and can dynamically shift resource reservations between networks, allowing the session to adapt to changing network conditions and maintain continuity without complex manual intervention
3Stability of the object's composition
If the mobile device remains connected to an access network with insufficient resources, then network selection is stable, but operational costs increase and service quality deteriorates
Solution Approach 1:
The patent implements a feedback mechanism that continuously monitors resource utilization, service quality metrics, and operational costs on the current access network. When thresholds are exceeded indicating insufficient resources or high costs, the system triggers a re-evaluation of network selection, allowing the mobile device to switch to more cost-effective networks while maintaining connection stability through controlled, threshold-based transitions
Data Source
AI summary
The present disclosure relates to a method for re-selecting a communication network. The method comprises receiving a network access request indicating a request to access to a communication network by a communication device, determining upon the basis of the network access request as to whether communication resources of the communication network are available for the communication device, and re-selecting another communication network for the communication device if the communication resources are not available for the communication device.