Dynamic Radio Access Technology Selection for Interference and Thermal Mitigation

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Solution Overview

Problem

Wireless user devices face issues with radio frequency interference and thermal management due to the proliferation of radio technologies and increased heat generation, which existing solutions inadequately address, particularly in managing interference between multiple radios and optimizing radio access technology usage.

Innovation Solution

A method and system that dynamically route traffic from applications on a wireless user equipment device to optimal radio access technologies based on actual or projected radio interference and thermal conditions, using a traffic flow routing algorithm that considers the characteristics of each application and the interference or thermal load, allowing for re-routing or reducing data rates to mitigate these issues.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple radio technologies are used to increase functionality and connectivity, then adaptability and versatility improve, but radio frequency interference between radios worsens

Engineering Contradiction:

ImproveconnectivityVSAvoidradio frequency interference

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent implements dynamic radio technology selection that adapts to current interference and thermal conditions. The system continuously monitors RF interference levels and thermal states, then dynamically routes traffic flows to appropriate radios, adjusting the configuration in real-time rather than using static assignments

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system changes operational parameters by selecting different radio technologies based on measured conditions. When interference or thermal thresholds are exceeded, the system modifies which radios are active and how traffic is routed, changing the operational state to resolve the contradiction between maintaining connectivity and avoiding interference

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If multiple radio technologies operate simultaneously to improve connectivity, then adaptability improves, but thermal load increases

Engineering Contradiction:

ImproveconnectivityVSAvoidthermal load

Core Design Contradiction:

Adaptability or versatilityVSTemperature

Solution Approach 1:

The system dynamically adjusts radio configuration based on real-time thermal monitoring. When thermal thresholds are approached, the system automatically reduces the number of active radios or redirects traffic to cooler radios, creating a dynamic response to thermal conditions while maintaining connectivity where possible

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent implements feedback control by continuously monitoring thermal states of radios and using this information to adjust traffic routing decisions. The system measures thermal conditions, compares them to thresholds, and feeds this information back into the radio selection algorithm to prevent thermal overload

Inventive Principle:

Principle #23Feedback

3Productivity

If traffic is routed to optimize performance, then throughput improves, but radio interference and thermal issues worsen

Engineering Contradiction:

ImprovethroughputVSAvoidradio interference

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The system implements dynamic traffic flow routing that adjusts to current RF and thermal conditions. Rather than using static routing rules, the system continuously evaluates interference levels and thermal states to determine optimal traffic paths, dynamically changing routes when conditions deteriorate

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes routing parameters based on measured conditions, selecting different radio technologies for traffic flows depending on current interference and thermal states. This parameter adjustment allows the system to maintain acceptable throughput while avoiding conditions that cause excessive interference or heating

Inventive Principle:

Principle #35Parameter changes

4Adaptability or versatility

If radio resources are allocated to maximize connectivity, then adaptability improves, but device complexity increases

Engineering Contradiction:

ImproveconnectivityVSAvoidmanagement complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements self-service through automated monitoring and decision-making systems. The device autonomously monitors its own RF interference levels and thermal states, then automatically adjusts radio configuration and traffic routing without user intervention, managing complexity internally while presenting simple connectivity options to users

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS9918267B2Mitigation of radio interference and thermal issues using radio access technology selection

Publication Date: 2018.03.13 MALIKIE INNOVATIONS LTD

AI summary

A wireless UE device uses a method of radio technology and channel selection for transferring device traffic that includes detecting, at a wireless user equipment device, a condition related to at least one of temperature and radio interference and responsive to the detecting, determining to associate a data application on the wireless UE device with a radio access technology (RAT).