Wireless Access Network Selection via Terminal Identifier Comparison
Solution Overview
Problem
In local wireless networks, terminals often experience suboptimal quality of service due to automatic connection to public access networks, which offer lower bandwidth and priority, instead of private networks that provide better service quality, requiring manual selection by users.
Innovation Solution
A method and communication equipment that allow terminals to automatically select between private and public wireless access networks based on stored terminal identifiers, ensuring connection to private networks for improved quality of service by transmitting refusal messages to public networks when authorized for private access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If terminals automatically connect to public wireless access networks for ease of access, then connection simplicity is improved, but quality of service deteriorates due to lower bandwidth and priority allocation
Solution Approach 1:
The system performs preliminary actions by storing terminal identifiers and authorization information in the communication equipment before the terminal needs to connect. When a terminal attempts to attach to a public network, the equipment has already prepared the authorization check, enabling automatic redirection to private networks without requiring manual user configuration or intervention.
Solution Approach 2:
The system implements feedback by monitoring terminal attachment requests and automatically responding with authorization status. When a terminal requests attachment to a public network, the communication equipment checks the stored identifier, determines authorization status, and either grants access to the public network or redirects to a private network, creating a closed-loop control system that continuously optimizes QoS based on terminal authorization.
2Reliability
If terminals are redirected to private wireless access networks for improved quality of service, then service quality is improved, but access control complexity increases due to identifier management
Solution Approach 1:
The communication equipment performs multiple functions using a single authorization mechanism. The same identifier storage and comparison system handles both public network access control and private network redirection decisions. This universal approach simplifies the overall system architecture despite the complexity of managing multiple network types and authorization scenarios.
Solution Approach 2:
The system changes the parameter of network selection based on the result of identifier comparison. Instead of complex policy decisions, the system uses a simple parameter change: if the terminal identifier matches an authorized identifier, redirect to private network; otherwise, allow public network access. This parameter-based approach simplifies access control while maintaining QoS improvements.
3Reliability
If manual selection of wireless access networks is required for optimal quality of service, then quality of service is improved, but user operation complexity increases
Solution Approach 1:
The system implements self-service by enabling terminals to automatically select appropriate networks based on their stored identifiers. The communication equipment autonomously determines whether to grant public network access or redirect to private networks, eliminating the need for manual user intervention. The terminal and network equipment work together to automatically optimize QoS based on pre-configured authorization data.
Data Source
Figure 1~3
AI summary
The method involves receiving a request for attachment of a terminal (T1) e.g. Internet protocol telephone, to a public wireless access network i.e. local area network such as Wireless Fidelitynetwork. An identifier i.e. International mobile equipment identity number, of the terminal is compared with a set of terminal identifiers for connection to a private wireless access network i.e. wide area network (WAN). A message of refusal of attachment of the terminal to the public wireless access network is transmitted when the terminal is allowed to connect to the private network. Independent claims are also included for the following: (1) a communication equipment comprising a comparison unit (2) a computer program comprising instructions for performing a method for selecting a wireless access network (3) a recording medium comprising the computer program with instructions for performing the method for selecting the wireless access network.