Handover Parameter Determination for Wireless Interference Mitigation

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Solution Overview

Problem

The presence of multiple wireless communication components in electronic devices often leads to interference, resulting in reduced reliability of wireless communications due to desense, which is a degradation in sensitivity causing increased error rates and service interruptions.

Innovation Solution

The electronic device incorporates interference mitigation logic that dynamically determines handover control parameters using a model to predict optimal handover decisions based on the status of interfering wireless communication components, allowing for seamless transitions between access points to mitigate interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple wireless communication components are included in the electronic device, then communication versatility is improved, but interference between components increases leading to reduced reliability

Engineering Contradiction:
Improvecommunication versatilityVSAvoidwireless communication reliability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent introduces an intermediary system consisting of a detector and handover controller that mediates between multiple wireless communication components. The detector monitors interference levels between components, and the handover controller uses these measurements to determine optimal handover parameters, thereby resolving the contradiction by adding a coordinating layer that enables multiple components to operate together with reduced interference impact

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent dynamically changes handover parameters based on measured interference conditions. By adjusting handover thresholds and timing parameters according to real-time interference measurements, the system adapts its operation to maintain reliability while supporting multiple wireless communication components

Inventive Principle:
Principle #35Parameter changes

2Reliability

If handover control parameters are configured to mitigate interference, then reliability is improved, but handover decision complexity increases

Engineering Contradiction:
Improvewireless communication reliabilityVSAvoidhandover control complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system implements self-service by automatically measuring interference between wireless components and autonomously determining handover parameters without requiring complex external configuration. The detector and controller work together to self-adjust handover settings based on real-time conditions, improving reliability while keeping the control mechanism relatively simple

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent employs feedback mechanisms where the detector continuously monitors interference levels and feeds this information back to the handover controller. This closed-loop feedback system enables reliable handover decisions based on actual interference conditions without requiring complex predetermined parameter sets

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP3494728B1Determining handover parameters
Publication Date: 2020.12.16 BLACKBERRY LTD
  • EP3494728B1 patent drawingFigure 1~2
  • EP3494728B1 patent drawingFigure 3
  • EP3494728B1 patent drawing

AI summary

In some examples, to mitigate interference of wireless communications, an electronic device that includes a first type wireless component and a second type wireless component receives values of parameters relating to wireless communication using the first type wireless component. The electronic device determines, using a model of a relationship between the parameters relating to wireless communication using the first type wireless component and at least one handover parameter relating to wireless communication using the second type wireless component, a value of the at least one handover parameter based on the received values of the parameters relating to wireless communication using the first type wireless component. It is determined whether the electronic device should be handed over from a first access point to a second access point based on the determined value of the at least one handover parameter.