Roaming Decision Logic Using Signal Strength and Data Rate
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Solution Overview
Problem
Current roaming algorithms in dual band wireless networks fail to maximize data throughput as they rely solely on signal strength degradation, neglecting the availability of networks with higher data rates, leading to suboptimal connection choices between networks with different frequency bands.
Innovation Solution
Implement a system where mobile devices monitor signal quality metrics and data rates to trigger roaming events, using a signal quality metric value and data rate comparison to switch between networks, prioritizing connections to networks with higher data rates by adjusting signal strength values with preference values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If roaming algorithms rely solely on signal strength degradation, then connection stability is maintained, but data throughput is not maximized
Solution Approach 1:
The patent changes the roaming decision parameter from solely signal strength to a composite metric that includes both signal strength and data rate. The system monitors multiple parameters (signal strength, data rate) and uses them together to trigger roaming events, thereby maximizing throughput while managing complexity through systematic parameter integration.
Solution Approach 2:
The patent adds a new dimension to the roaming decision process by incorporating data rate as an additional criterion alongside signal strength. This dimensional expansion allows the system to evaluate networks based on multiple attributes, enabling throughput optimization without excessive complexity increase through structured multi-criteria evaluation.
2Productivity
If devices switch networks based on signal strength only, then connection reliability is maintained, but connection to higher data rate networks is missed
Solution Approach 1:
The system modifies the connection selection parameters to include both signal strength and data rate. By monitoring these parameters simultaneously and using them as joint criteria for roaming decisions, the system achieves reliable connections to high data rate networks, balancing stability with performance optimization.
3Productivity
If devices monitor only signal strength, then monitoring complexity is reduced, but network selection optimization is compromised
Solution Approach 1:
The patent implements monitoring of multiple parameters (signal strength and data rate) simultaneously. This multi-parameter monitoring approach optimizes network selection by considering both connection quality and throughput potential, while managing complexity through systematic parameter collection and integrated evaluation.
Solution Approach 2:
The system adds data rate monitoring as an additional dimension to the traditional signal strength-only approach. This dimensional enhancement improves network selection efficiency by enabling comparison across multiple network attributes, while maintaining manageable complexity through structured multi-criteria evaluation frameworks.
Data Source
AI summary
Devices, systems and methods are disclosed for allowing a mobile device to connect to a network based on data rates. For example, the mobile device may select from available networks based on data rates associated with the available networks. In addition, the mobile device may determine to roam from a current network based on data rates. For example, the mobile device may roam when an expected throughput exceeds an actual throughput or when an anticipated throughput requirement exceeds the actual throughput.