Distance Measurement
Antenna engineering meets algorithmics: next-generation ranging
Radientum Oy, a Finland‑based antenna design company, and Metirionic GmbH, a German specialist in high‑accuracy wireless positioning and ranging, announce the release of a joint whitepaper detailing the practical applications and integration strategies for Bluetooth Channel Sounding, a breakthrough feature in Bluetooth 6.0 enabling sub‑meter, and even centimeter‑level, distance accuracy using standard Bluetooth Low Energy(BLE) radios.
About Bluetooth 6.0 Channel Sounding
- Bluetooth Channel Sounding transforms device capabilities across
- industries, powering secure digital keys, precise indoor asset tracking,
- context-aware peripherals, and industrial automation.
Historically, Bluetooth devices relied on coarse RSSI or complex AoA/AoD
antenna arrays for distance estimation. Channel Sounding changes the equation by enabling precise time‑based ranging on cost‑effective hardware already found in smartphones, wearables, tags, and gateways. The whitepaper provides actionable guidance for product companies new to channel sounding, emphasizing minimal hardware changes and robust antenna design. It shares key technical requirements, practical antenna design guidelines (single- and multi‑element), calibration methods, and integration lessons learned from real projects.
What’s inside the whitepaper
Clear explanation of Bluetooth 6.0 Channel Sounding and how it differs from RSSI and AoA/AoD approaches – Antenna and RF design guidance (single vs. multi‑element, placement, matching, isolation) - Calibration and verification workflows for consistent accuracy across devices and environments – Integration patterns to minimize hardware changes while maximizing performance - Real‑world considerations, pitfalls to avoid, and test strategies for deployment at scale.
About Metirionic GmbH:
Headquartered in Dresden, Germany, Metirionic specializes in advanced wireless positioning and ranging solutions. Since 2013, the company has developed proprietary and standards-compliant software technologies for distance measurement, positioning, and RTLS based on Bluetooth, IEEE 802.15.4, and UWB.
Building on these foundations, Metirionic focuses on advanced signal processing to improve ranging precision and robustness. Its Metirionic Advanced Ranging Stack (MARS) enhances Bluetooth Channel Sounding with multipath-resilient algorithms, providing reliable and accurate distance estimation even in complex environments. MARS operates across various platforms, including Nordic’s nRF54L15, external MCUs, and host PCs.
“Bluetooth Channel Sounding is a major step for precise distance measurement. With Metirionic’s MARS, we add multipath-resilient signal processing that improves accuracy and robustness - without a disruptive BOM change”
Attila Römer, Managing Director of Metirionic GmbH
About Radientum:
Radientum’s mission is to Bring optimal wireless performance to devices. Radientum is a Finland‑based antenna design company that provides engineering services and consultancy with specialized proficiency in antenna, RF, and EMC/EMI. The firm specializes in advanced antenna and RF engineering and has supported over 300 clients across different technologies including NFC, Bluetooth, UWB, LTE/5G, and 79 GHz radar.
Kontakt
01069 Dresden
DEUTSCHLAND
metirionic.com
