Synchronized P2P Group Switching for Inter-Group Communication
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Solution Overview
Problem
Wi-Fi Direct networks face challenges in inter-group communication, particularly when a large number of devices gather, leading to isolated groups and the inability to communicate outside the group, as not all devices support multiple physical or virtual Medium Access Control (MAC) interfaces necessary for concurrent operation.
Innovation Solution
A method where devices in one Wi-Fi P2P group disconnect and reconnect to another group in a synchronized manner, allowing for inter-group communication using a single physical or logical MAC interface by selecting a switching device to transfer between groups, enabling message exchange between P2P groups.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If concurrent operation with multiple MAC interfaces is used to enable inter-group communication, then communication between P2P groups is improved, but device complexity increases as not all devices support multiple physical or virtual MAC interfaces
Solution Approach 1:
The patent introduces a switching device as an intermediary component that enables inter-group communication. The switching device maintains connections to multiple P2P groups and acts as a mediator for message transfer between groups, allowing devices with single MAC interfaces to communicate across groups without requiring multiple interfaces themselves.
Solution Approach 2:
The patent segments the communication function by separating the switching function from regular client devices. The switching device is specifically designated to handle inter-group communication tasks, while regular devices maintain simple single-MAC interface connections to their respective groups. This segmentation allows the system to achieve inter-group communication capability without requiring all devices to support multiple MAC interfaces.
2Adaptability or versatility
If devices disconnect and reconnect between P2P groups to enable inter-group communication, then communication between isolated groups is enabled, but connection stability deteriorates due to frequent switching
Solution Approach 1:
The switching device serves as a stable intermediary that maintains persistent connections to multiple P2P groups. Instead of regular devices frequently disconnecting and reconnecting, the switching device anchors the connections and performs the switching function, thereby maintaining connection stability while enabling inter-group communication.
Solution Approach 2:
The patent implements preliminary action by establishing connections to multiple P2P groups in advance before actual communication is needed. The switching device pre-establishes connections to both groups and maintains them in a ready state, so when inter-group communication is required, the switching can occur without disrupting existing stable connections.
Data Source
AI summary
A method includes the steps of: disconnecting a first device included in a first P2P group from the first P2P group so that the first device joins to a second P2P group; and in synchronization with the first device switching to the second P2P group, disconnecting a second device included in the second P2P group from the second P2P group so that the second device joins to the first P2P group.