Communication Device Dynamic State Switching for Wi-Fi Direct Network Formation
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Solution Overview
Problem
In wireless networks formed using the Wi-Fi Direct scheme, communication devices sometimes fail to establish a network due to their operational states, particularly when one device is set as a Group Owner and the other as a client, leading to connectivity issues.
Innovation Solution
A communication device is designed to dynamically switch between Group Owner and client states, allowing it to form a wireless network with an external device by executing a process that includes searching for the external device, transferring to a non-parent state if necessary, and establishing a connection as a child station to the external device acting as a parent station.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If both communication devices are set as Group Owner to establish a wireless network, then network formation capability is improved, but connection establishment fails when both devices are in the same state
Solution Approach 1:
The communication device dynamically changes its operational state from Group Owner to non-Group Owner based on the detected state of the other device. When both devices initially attempt to form a network as Group Owners, the system detects this conflict and automatically transitions one device to a client state, enabling successful connection establishment while maintaining the ability to form networks when needed.
2Ease of operation
If a communication device automatically detects and responds to network formation instructions, then ease of operation is improved, but device complexity increases due to state detection and transition mechanisms
Solution Approach 1:
The communication device autonomously detects the operational state of other devices and automatically performs state transitions without user intervention. The system monitors network formation requests, identifies when both devices are in Group Owner state, and automatically switches to a non-Group Owner state to enable connection, eliminating the need for manual configuration while managing complexity internally.
Data Source
AI summary
A communication device may accept an instruction for establishing a wireless network to which the communication device and an external device are to belong, search for the external device in a case where the instruction is accepted, to transfer from a parent state to a non-parent state in a case where the communication device is in the parent state and the searched external device is in the parent state, and execute a forming process for forming a first wireless network to which the communication device is to belong as a child station and the external device is to belong as the parent station after the state of the communication device had transferred to the non-parent state.