The Bluetooth 5 specifications were released in 2016 with updates followed in 2019, 2021, and 2023. Now, the Bluetooth Special Interest Group (SIG) has unveiled Bluetooth Core Specification 6.0, introducing significant new features and enhancements. The standout addition is Bluetooth Channel Sounding, which promises to transform distance measurement in Bluetooth devices. This article will discuss major upgrades to the latest Bluetooth 6.0, including its core specifications.
Bluetooth 6.0 Overview
Advanced Distance Measurement
Bluetooth 6.0 introduces Bluetooth Channel Sounding, providing ‘true’ distance awareness for Bluetooth-compatible devices. This feature uses Phase-Based Ranging (PBR) and Round-Trip Timing (RTT) to measure distance with high precision. For example, it can improve keyless entry systems for cars. Channel Sounding achieves centimeter-level precision and supports solid security, such that only authorized users can access secure areas.
Improved Scanning Efficiency
Another key feature is Decision-Based Advertising Filtering (DBAF). This improvement increases scanning efficiency by reducing the time spent scanning secondary channels. For instance, in a crowded tech conference, your smartphone will use DBAF to filter out unnecessary signals more quickly. This results in faster connection times and better battery life.
Better Audio Streaming
The updated Isochronous Adaptation Layer (ISOAL) in Bluetooth 6.0 addresses latency and reliability issues. This enhancement benefits real-time audio streaming, such as with wireless headphones or speakers. The new framing mode reduces delays, providing clearer and more synchronized audio, which is especially useful for gaming or video calls.
Expanded Device Features
The extended link layer (LL) feature set allows devices to support a broader range of functions. For example, smart home devices like locks or thermostats can now communicate more effectively. This makes smart home systems more versatile and responsive.
Flexible Frame Spacing
Bluetooth 6.0 introduces negotiable frame spacing for packet transmissions, replacing the fixed 150 µs value. This flexibility improves connection efficiency, which benefits devices like smartwatches and fitness trackers.
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Bluetooth 6.0: Conclusion
These were only some of the major highlights of the latest Bluetooth 6.0. You can check out the detailed specs of all the updates here.
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