Terminal Device Wireless Connection Switching Mechanism
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Solution Overview
Problem
Existing communication systems between mobile terminals and MFPs often rely on legacy Wi-Fi connections, which do not allow for simultaneous establishment of multiple connections or efficient switching between different wireless communication schemes, limiting communication speed and flexibility.
Innovation Solution
A technique that enables a terminal device to determine the communication scheme of an established wireless connection and switch to a faster communication scheme, such as WFD, by using specific instructions to disconnect the legacy connection and establish a new connection via a different wireless interface, allowing participation in a WFD network as a client.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a legacy Wi-Fi connection is established between terminal device and communication device, then connection compatibility is maintained, but communication speed is limited
Solution Approach 1:
The terminal device dynamically switches between legacy Wi-Fi connection and WFD connection based on operational needs. The system transitions from a static connection model to a dynamic one where the connection type can change during operation, allowing the device to use faster WFD protocol when available while maintaining compatibility with legacy connections when needed.
Solution Approach 2:
The invention changes the communication protocol parameter from legacy Wi-Fi to WFD (Wi-Fi Direct) to achieve faster communication speeds. By modifying the connection protocol parameter and using different wireless interfaces (first wireless interface for legacy, second wireless interface for WFD), the system optimizes communication speed while maintaining compatibility.
2Adaptability or versatility
If multiple wireless connections are established simultaneously, then communication flexibility is improved, but device complexity increases
Solution Approach 1:
The invention segments the wireless communication functionality by separating legacy Wi-Fi connection and WFD connection into different wireless interfaces. The terminal device has a first wireless interface for legacy connections and a second wireless interface for WFD connections, allowing simultaneous operation without interference while simplifying management through interface separation.
3Speed
If wireless connection switching is enabled, then communication speed is improved, but connection stability may deteriorate
Solution Approach 1:
The terminal device performs preliminary detection to determine whether a WFD connection is available before switching from legacy connection. The device detects the communication scheme type in advance and only initiates switching when WFD is confirmed available, preventing unnecessary switching that could destabilize the connection while still enabling speed optimization when appropriate.
Data Source
AI summary
In a case where a specific wireless connection is established between a terminal device and a communication device under a state where a first wireless connection not via an access point is being established between the terminal device and the communication device, the terminal device may determine whether the first wireless connection is a wireless connection according to a first communication scheme or a wireless connection according to a second communication scheme, and supply a predetermined instruction to an OS (abbreviation of Operating System) program of the terminal device in a case where it is determined that the first wireless connection is the wireless connection according to the first communication scheme. The predetermined instruction may include an instruction for disconnecting the first wireless connection and an instruction for establishing a second wireless connection according to the second communication scheme between the terminal device and the communication device.