Wireless Frame Size Adjustment for Link Switching
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Solution Overview
Problem
Existing wireless communication methods delay handover until the transmission of a large wireless frame is completed, leading to deteriorated communication quality and potential data loss due to prolonged switching times.
Innovation Solution
A wireless communication device that measures communication quality of multiple links, adjusts the size of wireless communication frames based on these qualities, and switches between links between the completion and start of frame transmission to optimize efficiency and reduce data loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If handover is delayed until wireless frame transmission is completed, then data loss is reduced, but communication quality deteriorates and handover time increases
Solution Approach 1:
The patent applies preliminary action by performing handover preparation and measurement in advance before the current wireless frame transmission completes. The mobile station measures communication quality of candidate links during the current frame transmission, so that when handover is needed, the switching can occur quickly without waiting for frame completion, thus reducing handover delay while maintaining data integrity
Solution Approach 2:
The patent implements dynamics by making the frame size and transmission timing flexible rather than fixed. The mobile station dynamically adjusts the wireless frame transmission to enable handover at optimal points, and the base station adapts to variable frame sizes and transmission timings, allowing the system to balance between completing frame transmission and performing timely handover based on real-time communication quality
2Reliability
If handover is delayed until wireless frame transmission is completed, then transmission integrity is maintained, but communication efficiency deteriorates
Solution Approach 1:
The patent performs preliminary measurements of candidate wireless links during the current frame transmission, so that when handover becomes necessary, the mobile station can quickly switch to a pre-evaluated link without waiting for frame completion. This preliminary preparation maintains transmission integrity while improving communication efficiency by reducing handover delay
Solution Approach 2:
The patent changes the parameter of wireless frame size to be variable rather than fixed. By adjusting frame size based on communication quality and handover requirements, the system can optimize the balance between transmission integrity and communication efficiency, allowing smaller frames when handover is imminent and larger frames when stability is prioritized
3Quantity of substance
If large wireless frames are transmitted before handover, then data transmission volume increases, but handover preparation time increases and communication quality deteriorates
Solution Approach 1:
The patent performs preliminary measurement and evaluation of candidate wireless links during the transmission of large frames, so that when handover is needed, the switching can occur quickly to pre-qualified links. This eliminates the need for extended handover preparation time after frame transmission begins, allowing the system to maintain large frame transmission benefits while enabling rapid handover when necessary
Data Source
AI summary
In order to enable reducing deterioration of communication efficiency and loss of data caused by the switching of a wireless link, a wireless communication method includes transmitting a wireless communication frame via a first wireless link or a second wireless link, measuring a first communication quality that is a communication quality of the first wireless link and a second communication quality that is a communication quality of the second wireless link, changing a size of the wireless communication frame based on the first communication quality and the second communication quality, generating the wireless communication frame having the changed size, and switching a wireless link used for transmission of the wireless communication frame from the first wireless link to the second wireless link based on the first communication quality and the second communication quality.