Access Control Device Bandwidth Management Wireless Network
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Solution Overview
Problem
In wireless LAN networks, especially those using IEEE 802.11 standards, ensuring communication quality for real-time applications like VoIP becomes challenging due to bandwidth inconsistencies and lack of standardized methods for client terminal reconnection when access points are overloaded, leading to fluctuations in communication quality.
Innovation Solution
An access control device that monitors bandwidth usage, selects and severs connections to optimize channel distribution among client terminals, and facilitates seamless reconnection to other access points using inter-device communication and bandwidth management protocols.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a number of access point devices are increased to handle more client terminals, then the network capacity and coverage are improved, but the device complexity and difficulty of managing connection distribution increase
Solution Approach 1:
The patent introduces an access point as an intermediary device that manages connections between client terminals and the wireless network. The access point coordinates connection requests, monitors bandwidth usage, and performs forced disconnections when necessary, thereby simplifying the overall system management while supporting multiple terminals.
Solution Approach 2:
The patent implements a feedback mechanism where the access point continuously monitors the bandwidth usage of connected client terminals. When a terminal exceeds its allocated bandwidth or causes network degradation, the access point detects this condition and responds by forcing disconnection, thereby maintaining network quality for other users.
2Quantity of substance
If bandwidth is shared among multiple client terminals, then the network coverage and accessibility are improved, but the communication quality for real-time applications deteriorates
Solution Approach 1:
The patent applies partial action by allocating specific bandwidth portions to different client terminals rather than allowing unlimited sharing. When network conditions deteriorate or real-time applications are affected, the access point selectively disconnects specific terminals (partial disconnection) rather than affecting all connections, thereby maintaining communication quality for critical applications while preserving network coverage.
Solution Approach 2:
The patent dynamically changes the bandwidth allocation parameter for each client terminal based on network conditions and application requirements. The access point monitors bandwidth usage and adjusts allocations in real-time, forcing disconnections when parameters indicate quality degradation, thus maintaining reliable communication for real-time applications while supporting multiple terminals.
3Reliability
If IEEE 802.11e QoS mechanisms are implemented, then communication quality assurance is improved, but the device complexity and control overhead increase
Solution Approach 1:
The patent extracts the complex QoS control functions from the client terminals and concentrates them in the access point. The access point independently monitors bandwidth usage, determines when quality degradation occurs, and executes forced disconnections without requiring complex QoS negotiations or control mechanisms at the terminal level, thereby simplifying overall device complexity while maintaining communication quality.
Solution Approach 2:
The access point performs self-service by autonomously monitoring network conditions, identifying bandwidth violations, and executing disconnection decisions without external intervention. This self-managed approach to quality assurance reduces the need for complex inter-device negotiations and control overhead while maintaining reliable communication quality.
4Productivity
If client terminals are forcibly disconnected to optimize channel distribution, then the overall network efficiency is improved, but the individual terminal connectivity reliability worsens
Solution Approach 1:
The patent implements preliminary action by pre-defining bandwidth allocation limits and monitoring thresholds for each client terminal. The access point continuously checks against these predefined parameters and executes forced disconnections only when thresholds are exceeded, providing predictable and fair connection management that balances network efficiency with individual terminal reliability.
Solution Approach 2:
The patent dynamically changes connection parameters (bandwidth allocation, monitoring thresholds) based on network conditions and terminal behavior. The access point adjusts these parameters to optimize overall network efficiency while maintaining stable connections for compliant terminals, forcing disconnections only when parameter violations occur, thus balancing productivity with connection reliability.
Data Source
AI summary
An access control device is provided to a wireless device of a network which is constituted with a plurality of wireless devices connecting with one or a plurality of wireless terminals. The access control device includes: a connection severance terminal selection section which, when a bandwidth employed by a wireless communications section exceeds a threshold, selects a terminal whose connection is to be cut off from among the wireless terminals; a connection severance declaration section which, sends a connection severance declaration message to the other wireless terminals, including information about the connection severance terminal; and a forcible severance instruction section which verifies reception, of a message of declaration of acceptance of the connection severance terminal, and causes a forcible severance instruction message for the connection severance terminal. Accordingly, connection points of the wireless terminals can be efficiently changed in order to assure communication quality at the wireless devices.