Adaptive Data Compression for Bluetooth-WLAN Interference

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Solution Overview

Problem

Communication devices using conflicting frequency bands, such as Bluetooth and WLAN, face interference issues, leading to unsatisfactory quality and potential disconnection due to excessive suppression of one communication method during the other's operation.

Innovation Solution

A communication device with a compressibility adjusting section that modifies the data transmission rate of the second communication section based on the communication status of both the first and second sections, including retransmission ratios, to prevent excessive suppression and maintain continuous operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If communications performed by another communication means are suppressed when one communication means is executed, then communication quality of the first communication means is improved, but communication continuity of the second communication means deteriorates

Engineering Contradiction:

Improvecommunication qualityVSAvoidcommunication continuity

Core Design Contradiction:

ReliabilityVSDuration of action of stationary object

Solution Approach 1:

The patent applies dynamics by making the suppression level adaptive rather than fixed. The compressibility of communication data is dynamically adjusted based on the actual communication status, allowing the system to transition between different suppression levels according to real-time conditions, thus preventing excessive suppression while maintaining communication quality.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of data compressibility to resolve the contradiction. By adjusting the compressibility parameter of communication data based on communication status (such as retransmission ratios), the system can reduce data amount during poor communication conditions without excessively suppressing the second communication means, thereby maintaining both communication quality and continuity.

Inventive Principle:

Principle #35Parameter changes

2Object-affected harmful factors

If data transmission amount is reduced to avoid interference, then interference between communication means is reduced, but communication quality deteriorates

Engineering Contradiction:

ImproveinterferenceVSAvoidcommunication quality

Core Design Contradiction:

Object-affected harmful factorsVSReliability

Solution Approach 1:

The patent applies parameter changes by adjusting the compressibility of communication data based on actual communication status. When communication status is poor (high retransmission ratios), the system increases compressibility to reduce data transmission amount and interference. When communication status is good, the system reduces compressibility to maintain higher communication quality, thus dynamically balancing interference reduction and quality maintenance.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent implements feedback by monitoring communication status (such as retransmission ratios) and using this information to adjust the compressibility parameter. This closed-loop control ensures that data transmission amount is adaptively adjusted based on actual communication conditions, preventing excessive suppression while maintaining communication quality.

Inventive Principle:

Principle #23Feedback

3Object-affected harmful factors

If communication data is excessively suppressed during first communication section operation, then interference is reduced, but disconnection of second communication section occurs

Engineering Contradiction:

ImproveinterferenceVSAvoidconnection stability

Core Design Contradiction:

Object-affected harmful factorsVSReliability

Solution Approach 1:

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system performs self-adjustment by automatically monitoring its own communication status (such as retransmission ratios) and adjusting the compressibility parameter accordingly. This self-service mechanism allows the system to prevent disconnection by adapting to changing communication conditions without external intervention.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS8179856B2System and method for managing transmissions between communication devices using compression techniques

Publication Date: 2012.05.15 SONY INTERACTIVE ENTERTAINMENT LLC

AI summary

There is provided a communication device including a first communication unit and a second communication unit that use a band causing a conflict between them, the communication device changing a compressibility of communication data to be transmitted by the second communication unit based on a communication status of the first communication unit.