6G • RAN
Acoustic-Radio Hybrid Handset Locator
Multi-Modal Ultrasonic and Sub-THz Centimeter Positioning Engine
Terminal positioning engine combining inaudible ultrasonic pulses and 6G radio time-of-flight to achieve millimeter-level indoor location tracking.
Technical Explanation
While 6G sub-THz radio signals provide ultra-precise time-of-flight (ToF) ranging, multi-path reflections inside complex industrial or home environments can introduce ambiguity. The hybrid locator fuses sub-THz radio ranging with directional inaudible ultrasonic chirp pulses emitted by the phone speaker and captured by nearby IoT microphones. By correlating radio propagation (speed of light) with acoustic waves (speed of sound), the terminal resolves position to under 3 millimeters.
Key Functions
- Achieves sub-centimeter (1-3 mm) 3D indoor positioning accuracy
- Resolves multi-path ray ambiguities by fusing acoustic and radio propagation delays
- Operates in GNSS-denied deep indoor environments, warehouses, and basements
- Powers high-precision AR spatial anchoring and robotic indoor navigation
Specifications
3GPP Rel-19 High Accuracy Positioning, IEEE 802.15.4z UWB Extension
Interfaces
Handset Audio Codec (Ultrasound)Sub-THz Baseband TOF EngineAR Navigation Bus
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