Dynamic Anti-Interference for Wireless Communication Circuits

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional time division or frequency division methods for managing interference between integrated Bluetooth and WiFi communication circuits in devices result in shorter operating times, smaller signal coverage, and reduced resistance to external interference.

Innovation Solution

A dynamic anti-interference method that uses a control circuit to adjust gain and power settings dynamically based on the operating status of both communication circuits, employing gain control tables and power control tables to minimize interference by acknowledging and responding to the working modes of both circuits.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If time division or frequency division is used to manage interference between Bluetooth and WiFi circuits, then interference between circuits is reduced, but operating time is shortened and signal coverage is reduced

Engineering Contradiction:
Improveinterference between communication circuitsVSAvoidoperating time
Core Design Contradiction:
Object-affected harmful factorsVSDuration of action of moving object

Solution Approach 1:

The patent implements dynamic anti-interference measures where the system continuously monitors the operating status of both Bluetooth and WiFi circuits and adjusts parameters in real-time. The control circuit dynamically switches between different working modes (normal mode, receive mode, transmit mode) based on detected interference conditions, allowing the system to adaptively manage interference without fixed time or frequency divisions, thereby maintaining longer operating time while reducing interference.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes key parameters including reception sensitivity threshold, transmission power level, and working mode status to manage interference dynamically. By adjusting these parameters based on the operating status of both circuits, the system achieves interference reduction without the strict time or frequency constraints that limit operating time and signal coverage in conventional approaches.

Inventive Principle:
Principle #35Parameter changes

2Object-affected harmful factors

If time division or frequency division is used to manage interference between Bluetooth and WiFi circuits, then interference between circuits is reduced, but resistance to external interference is reduced

Engineering Contradiction:
Improveinterference between communication circuitsVSAvoidresistance to external interference
Core Design Contradiction:
Object-affected harmful factorsVSReliability

Solution Approach 1:

The patent employs a feedback mechanism where the control circuit continuously detects the operating status of both Bluetooth and WiFi circuits and adjusts system parameters accordingly. This closed-loop feedback allows the system to respond to external interference conditions in real-time, maintaining high resistance to external interference while managing internal circuit interference through dynamic parameter adjustment rather than fixed division schemes.

Inventive Principle:
Principle #23Feedback

3Object-affected harmful factors

If conventional interference management methods are used, then circuit interference is controlled, but transmission rate is limited below maximum

Engineering Contradiction:
Improveinterference between communication circuitsVSAvoidtransmission rate
Core Design Contradiction:
Object-affected harmful factorsVSProductivity

Solution Approach 1:

The patent enables continuous operation of both Bluetooth and WiFi circuits by implementing dynamic mode switching that allows overlapping transmission and reception operations. Instead of forcing sequential time-division operations, the system maintains continuous useful action through intelligent parameter adjustment, allowing circuits to operate at maximum transmission rates while managing interference through real-time feedback control.

Inventive Principle:
Principle #20Continuity of useful action

Data Source

PatentUS11246102B2Wireless communication device and dynamic anti-interference method for the same
Publication Date: 2022.02.08 REALTEK SEMICON CORP
  • US11246102B2 patent drawing
  • US11246102B2 patent drawing
  • US11246102B2 patent drawing

AI summary

A wireless communication device and a dynamic anti-interference method for the same are provided. The device includes at least two wireless communication circuits. When the method operates in the wireless communication device, the device monitors activities of every wireless communication circuit through a clear channel assessment method for acquiring signal strength of every wireless communication circuit. The assessment allows the device to perform a corresponding anti-interference measure for each of the wireless communication circuits. For example, when the device acknowledges that a second wireless communication circuit of the device starts to work as a first wireless communication circuit transmits or receives signals, the device controls a receiver or a transmitter of the second wireless communication circuit to perform an anti-interference measure such as a gain control for a receiver or power adjustment for a transmitter.