Channel Sounding (previously referred to as HADM – High Accuracy Distance Measurement) is a radical improvement on traditional Bluetooth distance and position measurement techniques, namely received signal strength indicators (RSSI) with angle of signal arrival/departure (AoA/AoD). The additional security and accuracy over previous generations of Bluetooth positioning, coupled with its low power profile, makes Bluetooth-based Channel Sounding ideal for applications such as automotive digital keys, and for general applications such as industrial / warehouse / consumer asset tracking, and real-time sport/fitness tracking.
CEVA's implementation provides best-in-class decimeter-level accuracy in complex, multi-path real-world environments. This robust, low power architecture, developed from over twenty years of field experience in Bluetooth connectivity, incorporates advanced security mechanisms to defeat distance-spoofing and 'relay attacks', an essential requirement for next generation digital keys and wireless payment systems.
"Channel Sounding for Bluetooth addresses an urgent need expressed by many of our automotive and industrial customers for a robust, low power, low-cost positioning solution. Along with UWB-based positioning that it can be combined with for even more demanding positioning applications, we offer a comprehensive and unrivaled portfolio of wireless technologies to meet the diverse needs of our customers," says Tal Shalev, Vice President and General Manager of the Wireless IoT BU at CEVA.
Beyond the demanding secure vehicle entry segment, Bluetooth-based positioning is well established as an asset tracking solution in industrial, warehouse and consumer applications. It is also experiencing a new wave of growth in the retail location services segment, especially when coupled with the increasingly popular Bluetooth-based Electronic Shelf Label (ESL) systems. The extra level of accuracy and security now possible through Channel Sounding in Bluetooth-based positioning will further accelerate the massive deployment of such systems.
ABI Research forecasts that more than 533 million Bluetooth-based low power positioning devices will ship annually by 2030, growing at a CAGR of 28.5% from 2022 to 2030.
CEVA's Channel Sounding for Bluetooth will be available for general licensing in September 2023. CEVA's RivieraWaves Bluetooth IP platforms provide comprehensive solutions for both Bluetooth LE and Bluetooth dual mode connectivity, spanning RF, Modem, Baseband Controller, and complete Host and Profile software stacks. All the latest features of Bluetooth are supported, including LE Audio / Auracast, LE Channel Classification, PaWR, and other enhancements.
www.ceva-dsp.com/product/rivierawaves-bluetooth-platforms
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