Wireless Communication Device Feedback for Sticky Client Handover
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Solution Overview
Problem
In wireless communication systems conforming to IEEE 802.11 standards, the phenomenon of 'Sticky Client' occurs where wireless terminal stations maintain connections with suboptimal base stations despite changes in their optimal connection destinations, leading to inefficient use of frequency resources.
Innovation Solution
A wireless communication device that transmits and receives measurement request and response signals to optimize connection destinations by determining the propagation status of signals between stations and base stations, enabling handover to more efficient connection points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If wireless terminal stations independently determine connection destinations based on current standards, then connection establishment is simple and fast, but frequency resource utilization efficiency deteriorates due to Sticky Client phenomenon
Solution Approach 1:
The patent implements a feedback mechanism where access points exchange measurement information about terminal stations with each other. The measurement request signal includes terminal identification information, and the access point measures propagation status (signal strength, reception timing) and returns this information. This feedback loop enables connection destination optimization based on actual propagation conditions rather than independent terminal judgment alone.
Solution Approach 2:
The patent introduces measurement information as an intermediary element between terminal stations and access points. Instead of terminals making purely independent decisions, the measurement information acts as a mediator that provides objective propagation status data, enabling more informed connection destination determination that balances terminal autonomy with network optimization.
2Productivity
If wireless terminal stations maintain connections to current access points regardless of propagation status changes, then connection stability is maintained, but communication efficiency deteriorates
Solution Approach 1:
The patent performs preliminary measurement of propagation status before finalizing connection decisions. Access points measure signal propagation characteristics in advance and store this information, enabling them to proactively identify better connection destinations before communication efficiency deteriorates, thus preventing rather than reacting to connection suboptimality.
Solution Approach 2:
The patent introduces dynamic connection destination determination based on changing propagation conditions. The system can switch from static independent terminal selection to dynamic network-coordinated selection based on real-time measurement feedback, allowing connection destinations to adapt to changing environmental conditions while maintaining stability through measured propagation status data.
3Productivity
If access points perform measurement requests to determine optimal connection destinations, then frequency resource utilization improves, but measurement and communication time increases
Solution Approach 1:
The patent makes measurement action continuous by having access points periodically perform measurement requests and maintain updated propagation status information. Rather than one-time measurements, the system continuously monitors and updates measurement data, ensuring connection optimization is always based on current conditions without requiring repeated handovers.
Solution Approach 2:
The patent performs measurement actions in advance before connection decisions are finalized. By pre-measuring propagation status and storing the information, the system avoids the need for time-consuming real-time measurements during critical connection switching moments, thus reducing handover time while maintaining optimization benefits.
Data Source
AI summary
The present technology relates to a wireless communication device that is adapted to be capable of effectively utilizing frequency resources. The wireless communication device is a wireless communication device that is connected to one or a plurality of target wireless communication devices, and that includes: a transmission unit that transmits, to another wireless communication device, a measurement request signal requesting measurement related to a propagation status of a signal from the target wireless communication device; and a receiving unit that receives a measurement request response signal transmitted from the another wireless communication device in response to the measurement request signal, the measurement request response signal including a result of the measurement. The present technology can be applied to a wireless base station and a wireless terminal station.