Bluetooth Bridge Device Dual Transceiver Simultaneous Piconet Connection

Solution Overview

Problem

The existing Bluetooth protocol restricts a device from belonging to multiple piconets simultaneously, leading to high processing overheads, reduced connectivity, and throughput issues in scatternets due to the need for bridge devices to switch between piconets in a time-division manner.

Innovation Solution

A Bluetooth communication device with dual independent transceiver circuitries and an internal connection, allowing simultaneous connections to two Bluetooth networks and enabling data routing without disconnection, thereby overcoming the limitations of the bridge device switching between piconets.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a bridge device switches between piconets in a time-division manner, then the device can belong to multiple piconets, but high processing overheads occur and throughput is reduced

Engineering Contradiction:

Improveability to belong to multiple piconetsVSAvoidthroughput

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The bridge device is segmented into two independent Bluetooth transceiver circuitries (first and second transceivers), each capable of independently joining and operating in different piconets. This segmentation allows simultaneous participation in multiple piconets without time-division switching, eliminating processing overheads and maintaining high throughput in scatternet operations.

Inventive Principle:

Principle #1Segmentation

2Adaptability or versatility

If a bridge device switches between piconets in a time-division manner, then connectivity between piconets is enabled, but latency increases due to repeated switching

Engineering Contradiction:

Improveconnectivity between piconetsVSAvoidlatency

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The bridge device is segmented into two independent Bluetooth transceiver circuitries (first and second transceivers), each capable of independently joining and operating in different piconets. This segmentation allows simultaneous participation in multiple piconets without time-division switching, eliminating processing overheads and maintaining high throughput in scatternet operations.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The first and second transceivers operate continuously and simultaneously in their respective piconets without interruption or switching. Data forwarding between piconets occurs continuously through the internal connection, eliminating the latency associated with time-division switching and maintaining uninterrupted connectivity.

Inventive Principle:

Principle #20Continuity of useful action

3Adaptability or versatility

If a bridge device switches between piconets in a time-division manner, then scatternet operation is enabled, but the bridge device becomes a bottleneck

Engineering Contradiction:

Improvescatternet operation capabilityVSAvoidprocessing overhead in bridge device

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The bridge device is segmented into two independent Bluetooth transceiver circuitries (first and second transceivers), each capable of independently joining and operating in different piconets. This segmentation allows simultaneous participation in multiple piconets without time-division switching, eliminating processing overheads and maintaining high throughput in scatternet operations.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The first and second transceivers are merged within a single bridge device through an internal connection that enables direct data forwarding between them. This merging allows the bridge device to simultaneously maintain memberships in multiple piconets without the complexity of time-division switching, eliminating the bottleneck effect while maintaining scatternet operation capability.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentEP2400812B1Bluetooth networking

Publication Date: 2019.11.27 SOLUTIONS OY

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Figure 3B~5
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AI summary

An apparatus enabling establishment of a Bluetooth mesh network comprises at least two Bluetooth transceiver circuitries and an internal connection between the at least two Bluetooth transceiver circuitries. The Bluetooth transceiver circuitries are simultaneously connected to different Bluetooth piconets, and the apparatus operates as a bridge between the piconets. Concatenation of such apparatuses enables construction of a Bluetooth mesh network where the bridge devices may be simultaneously connected to multiple Bluetooth piconets.