Dual-Mode Mobile Terminal Automatic Network Switching
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing dual mode mobile terminals require users to manually select dial numbers based on their location, leading to inconvenience and high costs when constructing private wireless networks for mobile communication, as they need to switch between public and private PHS networks, and the installation of multiple wireless base stations is necessary for seamless communication.
Innovation Solution
A mobile communication system that includes an IP-PBX, IP wireless base station, public wireless exchange, gateway device, and a dual mode terminal with a control unit that detects movement between communication areas and automatically switches the communication path from a private IP network to a public network, reducing the need for multiple IP wireless base stations and lowering construction costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a private wireless network is constructed with multiple IP wireless base stations to enable mobile communication, then communication coverage and mobility are improved, but the cost of introducing the private network increases significantly
Solution Approach 1:
The patent combines public and private wireless networks into a single dual-mode terminal device. The terminal can automatically switch between public network mode and private network mode based on location, eliminating the need for multiple separate base station infrastructure while maintaining communication coverage.
Solution Approach 2:
The dual-mode terminal possesses multi-functionality by supporting both public network communication and private network communication. This universal device can operate in different network environments without requiring separate dedicated devices for each network type.
2Ease of operation
If a dual mode terminal automatically switches between public and private networks, then user convenience is improved, but the control complexity and network switching overhead increase
Solution Approach 1:
The control unit automatically detects the terminal's location and autonomously determines whether to switch between public and private networks without requiring user intervention. The system serves itself by making intelligent decisions based on pre-stored subscriber numbers and current network conditions.
Solution Approach 2:
The terminal pre-stores subscriber numbers for both public and private networks in the control unit before actual communication occurs. This preliminary preparation enables rapid automatic switching when network conditions change, reducing the complexity of real-time decision-making.
3Adaptability or versatility
If the terminal stores subscriber numbers for both public and private networks, then adaptability to different networks is improved, but the memory requirements and management complexity increase
Solution Approach 1:
The control unit stores subscriber numbers with specific quality differentiation - public network subscriber numbers and private network subscriber numbers are stored separately with distinct identification. This local quality organization allows the terminal to adapt to different network types while maintaining efficient memory management through structured storage.
Data Source
AI summary
A mobile terminal, to which a phone number of a private IP network and a phone number of a public network are allocated, detects whether the mobile terminal moves from a communication area of a IP wireless base station of a private IP network while the mobile terminal communicates with an IP terminal connected to an IP-PBX of the private IP network through an IP wireless base station of the private IP network. The mobile terminal notifies the IP-PBX that it moves from the communication area of the IP wireless base station to the communication area of the public wireless base station when the mobile terminal detects said movement. The IP-PBX sends instruction for a gateway device, which connects communication between the private IP network and the public network, to call the phone number of the public network of the mobile terminal. The mobile terminal responds to the call from the gateway device through the public wireless base station while the mobile terminal communicates with the IP terminal through the IP wireless base station. The mobile terminal and the gateway device are connected so as to communicate mutually. The IP-PBX switches a communication path between the mobile terminal and the IP terminal from a communication path through the IP wireless base station to a communication path through the public wireless base station.