Wireless Handoff via Virtual AP Connection
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Solution Overview
Problem
Current wireless communication technologies experience poor connection quality and increased power consumption during handoffs between wireless access points, leading to reduced network performance and user experience due to the lack of efficient channel quality management.
Innovation Solution
A method and system that utilize a central management access point to monitor and manage network conditions across multiple access points, enabling proactive handoffs to optimize channel quality by virtually connecting terminals to multiple access points and submitting handoff requests based on network condition information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wireless network card maintains connection with the current wireless AP during handoff, then connection continuity is preserved, but connection quality becomes very poor and power consumption increases
Solution Approach 1:
The system performs preliminary actions by establishing a virtual connection with the target AP before the actual handoff occurs. The network card is pre-configured with the target AP's information and maintains a virtual connection, so when handoff is needed, the transition is seamless and does not require increasing transmission power, thus resolving the contradiction between connection continuity and power consumption.
2Reliability
If the wireless network card maintains connection with the current wireless AP during handoff, then connection continuity is preserved, but communication speed decreases due to poor channel quality
Solution Approach 1:
The system performs preliminary actions by establishing a virtual connection with the target AP before the actual handoff occurs. The network card is pre-configured with the target AP's information and maintains a virtual connection, so when handoff is needed, the transition is seamless and does not require increasing transmission power, thus resolving the contradiction between connection continuity and power consumption.
3Device complexity
If the wireless network card switches to another wireless AP only after communication is unavailable, then simplicity of handoff logic is maintained, but connection quality is poor and network performance is affected
Solution Approach 1:
The system introduces an intermediary mechanism - a virtual connection managed by the wireless network card driver - that mediates between the current AP and the target AP. This virtual connection allows the system to prepare for handoff in advance without complicating the overall handoff logic, enabling proactive connection management while maintaining simple handoff procedures.
4Reliability
If proactive handoff is implemented by virtually connecting to multiple access points, then connection quality and communication speed are improved, but device complexity increases
Solution Approach 1:
The system implements self-service by enabling the wireless network card driver to automatically manage virtual connections with target APs. The driver autonomously monitors connection quality, identifies suitable target APs, and maintains virtual connections without requiring complex external management, thus improving connection quality while minimizing the increase in device complexity.
Data Source
AI summary
A method and system for handing off a terminal among a plurality of wireless access points (APs) connected to a central management AP. The method comprising: receiving network condition information of a terminal communicatively connected to a first wireless AP among the plurality of wireless APs. Determining a second wireless AP the plurality of wireless APs to which the terminal is to be handed off based on the network condition information of the terminal. The second wireless AP is virtually connected to the terminal. Submitting a handoff request to the second wireless AP. Notifying the terminal to hand off to the second wireless AP in response to receiving a handoff response from the second wireless AP.