Wireless Master-Slave Reconnection Control via Disconnection Requests
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Solution Overview
Problem
Conventional wireless communication systems lack effective control over apparatus participation, leading to unnecessary communication and inefficiencies.
Innovation Solution
A wireless communication system where information processing apparatuses can transmit connection information, establish and disconnect connections, and determine reconnection based on received requests and stored connection data, allowing for controlled participation and reduced useless communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the slave apparatus transmits participation requests to selected master apparatuses without receiving disconnection requests, then the slave apparatus may continuously attempt reconnection, but this causes useless communication and network congestion
Solution Approach 1:
The master apparatus transmits disconnection requests to slave apparatuses before actual disconnection occurs (e.g., when group communication is ending). This preliminary notification allows slave apparatuses to stop reconnection attempts in advance, preventing useless communication while maintaining connection reliability.
Solution Approach 2:
The system implements feedback by having master apparatuses transmit disconnection requests back to slave apparatuses. This feedback mechanism informs slaves of upcoming disconnections, enabling them to adjust their reconnection behavior and avoid unnecessary communication attempts.
2Reliability
If the slave apparatus automatically attempts reconnection without receiving disconnection requests, then connection reliability improves, but network congestion and useless communication increase
Solution Approach 1:
The master apparatus transmits disconnection requests in advance before actual disconnection. This allows slave apparatuses to stop reconnection attempts before they would otherwise occur, maintaining connection reliability while preventing communication inefficiency.
Solution Approach 2:
Slave apparatuses autonomously determine their reconnection behavior based on received disconnection requests. When a disconnection request is received, the slave apparatus self-adjusts by stopping automatic reconnection attempts, improving communication efficiency without external intervention.
3Device complexity
If the master apparatus does not transmit disconnection requests, then the system structure remains simple, but slave apparatuses cannot control their reconnection behavior effectively
Solution Approach 1:
The disconnection request acts as an intermediary signal between master and slave apparatuses. This simple message structure enables effective participation control without adding complex system architecture, allowing slaves to adjust reconnection behavior based on the request.
Solution Approach 2:
The system uses parameter changes in the communication protocol (adding disconnection request transmission) to enable participation control. This minimal parameter change provides effective control capability while maintaining relatively simple system structure.
Data Source
AI summary
A master apparatus includes, in an action frame for connection, acceptance policy regarding acceptance of a slave apparatus, and transmits the action frame. After establishment of connection with the slave apparatus, the master apparatus transmits a disconnection request to the slave apparatus. After having been disconnected from the master apparatus, the slave apparatus determines whether or not to reconnect to the master apparatus, on the basis of the acceptance policy included in the action frame from the master apparatus, and the disconnection request received from the master apparatus. Upon determining that reconnection is not possible, the slave apparatus does not transmit a participation request to the master apparatus.