Cross-Communication Gateway Selection via Correspondence Mapping
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Solution Overview
Problem
Current gateway selection methods only consider allocable resources in each Serving Gateway (SGW) for cellular and non-cellular communication, leading to potential inability of User Equipment (UE) to access suitable gateways for communication services, especially when no corresponding gateway is available for a specific service type.
Innovation Solution
A gateway selection method that refers to correspondence information associating communication services with gateway devices for both cellular and non-cellular communication, allowing the selection of a suitable gateway device even when no direct match is found in one communication type by searching in the other type.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If gateway selection is based only on allocable resources in each SGW for cellular communication, then resource allocation is simplified, but the ability to access suitable gateways for communication services is reduced
Solution Approach 1:
The invention creates a unified gateway selection mechanism that works across both cellular and non-cellular communication types. The correspondence information structure and selection process are designed to be universal, allowing the same gateway to potentially serve multiple communication types and services, thereby increasing adaptability without proportionally increasing complexity
Solution Approach 2:
The invention introduces correspondence information as an intermediary layer between the communication service requirements and the gateway devices. This intermediary contains pre-established mappings between service types and suitable gateways, simplifying the real-time selection process while enabling versatile service support through pre-configured knowledge
2Ease of operation
If gateway selection considers only cellular communication resources, then selection process is straightforward, but gateways for non-cellular communication services cannot be accessed
Solution Approach 1:
The invention merges the gateway selection processes for cellular and non-cellular communications into a unified mechanism. By combining the correspondence information from both communication types and using a single selection process that evaluates both, the system maintains operational simplicity while achieving multi-communication service support
Solution Approach 2:
The invention adds a communication type dimension to the gateway selection process. Instead of selecting gateways based solely on cellular communication parameters, the system now considers both cellular and non-cellular dimensions simultaneously through the correspondence information structure, enabling access to gateways suitable for either communication type
3Reliability
If separate gateway selection is performed for cellular and non-cellular communication, then service-specific optimization is achieved, but system complexity increases
Solution Approach 1:
The invention segments the correspondence information into distinct entries for cellular and non-cellular communications, allowing service-specific optimization to be maintained. Each communication type has its own set of gateway mappings, enabling precise matching while the overall structure remains organized and manageable through this segmentation approach
Data Source
AI summary
In a communication system (1), when there is no access destination corresponding to a service type to be used by a piece of UE (50) in one of cellular communication and non-cellular communication, a retrieval unit (13) of a DB server (10) selects an access destination by referring to correspondence information in the other of the cellular communication and the non-cellular communication. Thus, when there is no access destination corresponding to the service type to be used by the UE (50) in one of the cellular communication and the non-cellular communication, the access destination corresponding to the service type is selected in the other of the cellular communication and the non-cellular communication. Therefore, it is possible to select an access destination suitable for the service type from both the cellular communication and the non-cellular communication.