Bluetooth Dual-Mode Connection Switching to BLE

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Solution Overview

Problem

Current Bluetooth technologies, such as BR/EDR, consume excessive power when transmitting small amounts of data like heart rate and blood pressure, as they are designed for large data transmission like audio, leading to inefficient power usage in electronic devices.

Innovation Solution

Implementing a dual-mode Bluetooth connection method that switches from BR/EDR to BLE when the accessory device supports it, allowing for efficient transmission of audio, video, or call data through BLE, reducing power consumption by using BLE for smaller data transfers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If BR/EDR connection mode is used for data transmission, then large-amount data transmission capability is ensured, but power consumption increases excessively

Engineering Contradiction:

Improvedata transmission capacityVSAvoidpower consumption

Core Design Contradiction:

Quantity of substanceVSUse of energy by moving object

Solution Approach 1:

The patent changes the connection mode parameter from BR/EDR to BLE based on data transmission needs. When small-amount data needs to be transmitted, the system switches to BLE connection mode which has lower power consumption characteristics, while maintaining the ability to use BR/EDR for large-amount data transmission when needed.

Inventive Principle:

Principle #35Parameter changes

2Reliability

If BR/EDR connection mode is used, then reliable data transmission is achieved, but power consumption is wasted for small-amount data

Engineering Contradiction:

Improvedata transmission reliabilityVSAvoidpower consumption waste

Core Design Contradiction:

ReliabilityVSLoss of energy

Solution Approach 1:

The patent implements dynamic connection mode selection between BR/EDR and BLE based on real-time transmission requirements. The system can dynamically switch connection types, using BLE for small-amount data to avoid energy waste while maintaining BR/EDR for scenarios requiring its specific reliability characteristics.

Inventive Principle:

Principle #15Dynamics

3Adaptability or versatility

If single-mode BR/EDR Bluetooth is used, then compatibility is maintained, but power consumption efficiency decreases

Engineering Contradiction:

ImproveBluetooth compatibilityVSAvoidpower consumption efficiency

Core Design Contradiction:

Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The patent implements dual-mode Bluetooth functionality that supports both BR/EDR and BLE connection modes. This multi-functionality allows the device to maintain compatibility with legacy BR/EDR devices while also utilizing BLE for energy-efficient small-amount data transmission when both devices support it.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS11825539B2Bluetooth connection method and electronic device

Publication Date: 2023.11.21 HUAWEI TECH CO LTD

AI summary

A BLUETOOTH connection method includes an electronic device establishing basic rate (BR)/enhanced data rate (EDR) connection to an accessory device. The electronic device determines that the electronic device supports a dual-mode connection and that the accessory device also supports the dual-mode connection. The dual-mode connection includes the BR/EDR connection and a BLUETOOTH Low Energy (BLE) connection. The electronic device disconnects the BR/EDR connection to the accessory device, and establishes the BLE connection to the accessory device.