Extending Device Dynamic Frequency Band Switching
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Solution Overview
Problem
Conventional wireless distribution systems (WDS) are limited by range extenders that can only relay traffic flows in the same frequency band, leading to unbalanced traffic loads and underutilization of available frequency bands, which hampers system performance.
Innovation Solution
A communication method that allows the extending device to dynamically switch and adjust traffic flows between multiple frequency bands, enabling the relay of traffic flows between stations and an access point in different frequency bands, thereby optimizing system performance by balancing traffic loads and utilizing available channels effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the range extender is limited to relay traffic flows in the same frequency band, then the device complexity is reduced and operation is simplified, but the traffic load becomes unbalanced and frequency band utilization is poor
Solution Approach 1:
The patent implements dynamic frequency band selection where the range extender can adaptively switch between different frequency bands (2.4GHz and 5GHz) for relaying traffic flows. The system dynamically determines which frequency band to use based on traffic load conditions, channel quality, and available resources, transforming the static same-band relay limitation into a dynamic multi-band relay capability that optimizes performance without excessive complexity
2Ease of operation
If the range extender relays all traffic flows in the same frequency band, then the operation is simplified, but the traffic load becomes unbalanced and system performance deteriorates
Solution Approach 1:
The patent changes the operational parameter of frequency band selection from fixed (same band only) to variable (dynamic selection between 2.4GHz and 5GHz). The range extender monitors traffic load and channel conditions, then adjusts the frequency band parameter accordingly to maintain balanced loads and optimal performance, achieving both operational simplicity and system reliability
3Productivity
If the range extender uses multiple frequency bands for different traffic flows, then the traffic load balancing and channel utilization improve, but the device complexity and control difficulty increase
Solution Approach 1:
The patent implements a feedback mechanism where the range extender continuously monitors traffic load conditions on different frequency bands and adjusts its relay behavior accordingly. The system receives feedback about channel quality and load distribution, then makes intelligent decisions about which frequency band to use for each traffic flow, achieving load balancing without requiring complex manual control
Data Source
AI summary
A communication method for an extending device in a communication system includes transmitting or receiving a first traffic flow and a second traffic flow from a station of the communication system in a first frequency band; transmitting or receiving the first traffic flow and the second traffic flow from an access point of the communication system in the first frequency band; and transmitting or receiving the second traffic flow from the access point in a second frequency band.