VoIP Access Point Connection Control via Association Release
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Solution Overview
Problem
Existing wireless LAN systems face overload and communication quality deterioration when the number of VoIP connections exceeds the upper limit, leading to increased load on access points and poor user experience due to continuous retry processes.
Innovation Solution
The access point simplifies connection control by notifying terminals to release associations when the connection limit is reached, preventing overload and allowing instant recognition of unestablished VoIP communications, thereby controlling the number of VoIP calls effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the access point continuously retries registration processing when connection requests exceed the upper limit, then the system attempts to maintain connection availability, but the load on the access point increases and communication quality deteriorates
Solution Approach 1:
The access point applies preliminary anti-action by proactively notifying terminals to release associations before the system becomes overloaded. When the connection count reaches the upper limit, the access point sends release notifications to existing connections, preventing new connection requests from accumulating and causing overload. This anticipatory action eliminates the need for continuous retry processing while maintaining connection availability for legitimate users.
2Adaptability or versatility
If the access point continuously retries registration processing when connection requests exceed the upper limit, then the system attempts to accommodate more users, but user-friendliness is lost as clients must wait
Solution Approach 1:
The access point performs preliminary action by notifying terminals to release associations in advance when the connection upper limit is reached. This proactive notification allows terminals to immediately understand why their connection requests are rejected and take appropriate actions (such as disconnecting and reconnecting later). This eliminates the need for clients to wait indefinitely during continuous retry processing, significantly reducing client waiting time while maintaining the system's ability to accommodate users within capacity limits.
3Ease of operation
If the access point receives multiple connection requests in an overloaded state, then the system processes all requests, but the access point becomes overloaded and communication quality deteriorates
Solution Approach 1:
The access point applies inversion by reversing the conventional approach: instead of accepting all connection requests and then managing overload, it actively manages the connection count by notifying terminals to release associations when the upper limit is reached. This inverted control mechanism ensures that the access point maintains optimal load levels, preventing overload conditions that would degrade communication quality, while still providing straightforward connection processing for users within the capacity limit.
Data Source
AI summary
A critical threshold value of the number of connections of VoIP communication by a wireless LAN is set to an access point apparatus. The access point apparatus records identification information of terminals each of which has transmitted a request for connection of VoIP communication. After the number of terminals whose identification information have been recorded reaches the critical threshold value, the access point apparatus transmits a packet indicating release an association to a terminal whose identification information is newly recorded.