Bluetooth Channel-Aware Parameter Negotiation

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Solution Overview

Problem

BLE communication devices face challenges due to channel fading and interference, leading to suspended communication, power consumption issues, and inefficiencies in using common parameters for all channels.

Innovation Solution

The method involves negotiating, setting, and modifying channel-aware operation parameters on a per-channel basis within a channel set, allowing for dynamic tuning of parameters such as transmit power, packet size, and connection interval duration to optimize channel performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If common parameters are used for all BLE channels, then device complexity is reduced and ease of operation is improved, but communication reliability deteriorates due to channel fading and interference

Engineering Contradiction:

Improvecommunication reliabilityVSAvoidparameter management complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent segments the parameter configuration from a global level to a channel-specific level. Instead of using a single set of common parameters for all BLE channels, the system divides parameters into channel-specific configurations, allowing each channel to have optimized parameters tailored to its specific fading and interference characteristics, thereby improving communication reliability without requiring complete redesign of the parameter management system

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent applies local quality by enabling different parameter settings for different channels based on their individual characteristics. Each channel can have customized parameters such as transmit power, packet size, and timing configurations that are optimized for its specific environmental conditions, rather than applying a uniform parameter set across all channels. This localized optimization improves reliability while maintaining manageable complexity through structured parameter organization

Inventive Principle:

Principle #3Local quality

2Productivity

If channel-specific parameters are negotiated and optimized, then communication throughput and robustness are improved, but device complexity and operation difficulty increase

Engineering Contradiction:

Improvecommunication throughputVSAvoidparameter configuration ease

Core Design Contradiction:

ProductivityVSEase of operation

Solution Approach 1:

The patent implements preliminary action by pre-negotiating and establishing channel-specific parameters before actual data transmission begins. The parameter negotiation process occurs during connection establishment or reconnection phases, allowing the system to proactively optimize parameters for each channel based on initial channel assessments. This preliminary configuration enables high-throughput communication without requiring complex real-time parameter adjustments during active transmission

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent applies dynamics by enabling adaptive parameter negotiation that can respond to changing channel conditions. The system can dynamically adjust parameters based on observed channel quality, connection status, and interference levels. This dynamic approach allows throughput optimization while managing operational complexity through automated negotiation protocols that reduce manual configuration requirements

Inventive Principle:

Principle #15Dynamics

3Use of energy by moving object

If per-channel parameter optimization is implemented, then power consumption efficiency is improved, but device complexity and processing requirements increase

Engineering Contradiction:

Improvepower consumption efficiencyVSAvoidparameter processing complexity

Core Design Contradiction:

Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The patent applies parameter changes by systematically varying key transmission parameters such as transmit power, packet size, and connection interval duration across different channels based on their specific characteristics. This parameter optimization enables the system to use lower power settings on channels with good quality while allocating higher power only where necessary, improving overall power efficiency. The structured approach to parameter changes maintains processing complexity at manageable levels through consistent optimization criteria

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS20250133381A1BLE channel aware operation parameters

Publication Date: 2025.04.24 TEXAS INSTRUMENTS INC

AI summary

In an example, a method includes communicating between a first BLUETOOTH device and a second BLUETOOTH device via a first channel within a channel set at a first connection event using first channel specific parameters. The method also includes determining, by the first BLUETOOTH device, one or more channel cluster operation parameters for a second channel within the channel set at a second connection event using second channel specific parameters. The method includes communicating over the second channel during the second connection event from the first BLUETOOTH device to the second BLUETOOTH device using renegotiated second channel specific parameters.