Dynamic Cross-Band Access Point Roaming for Higher Throughput
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Solution Overview
Problem
Conventional techniques for roaming between access points with different frequency bands often result in a decrease in throughput due to the differences in frequency bands.
Innovation Solution
A communication apparatus and method that obtains information on multiple access points of different frequency bands, compares the connected frequency band with a roaming target, and adjusts the roaming condition based on the signal strength and frequency band differences to facilitate seamless roaming to a higher throughput band.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If roaming is executed between access points of different frequency bands, then signal coverage is extended, but throughput decreases
Solution Approach 1:
The patent changes the roaming condition parameters dynamically based on frequency band comparisons. When a 5GHz AP is detected, the roaming condition is relaxed to allow easier transition to higher throughput bands, while maintaining signal coverage requirements. This parameter adjustment resolves the contradiction by adapting roaming behavior to frequency band characteristics.
Solution Approach 2:
The patent implements dynamic roaming condition adjustment based on real-time frequency band detection. The roaming threshold and conditions are not fixed but dynamically modified according to the detected frequency band of the target AP, enabling the system to adaptively balance between signal coverage and throughput optimization during roaming decisions.
2Reliability
If roaming condition is set strictly to maintain signal strength, then connection stability is improved, but throughput optimization is reduced
Solution Approach 1:
The patent applies different roaming condition standards based on the local frequency band context. When a 5GHz AP is detected, the system applies more lenient roaming conditions to facilitate transition to higher throughput bands, while maintaining stricter conditions for 2.4GHz bands. This localized quality adjustment allows throughput optimization without compromising overall connection stability.
Solution Approach 2:
The patent dynamically changes roaming condition parameters (such as signal strength thresholds) based on the detected frequency band. By adjusting these parameters according to the target AP's frequency band, the system can maintain connection stability for 2.4GHz while optimizing throughput for 5GHz transitions.
Data Source
AI summary
A communication apparatus comprises an obtaining unit configured to obtain information of a plurality of access points of different frequency bands; a change unit configured to compare a frequency band during connection and a frequency band of a roaming target, and change a roaming condition for executing roaming; and an execution unit configured to execute roaming in a case where a signal of the frequency band during connection satisfies the roaming condition.