Electronic Devices with Secure Ultra-Wideband Ranging

원문 (중국어)

A communications system may include first and second electronic devices. The first device may transmit an ultra-wideband (UWB) signal to the second device. The UWB signal may include pulses that represent a ranging frame. The pulses may include a series of pulses representing a physical layer (PHY) payload of the ranging frame. The second device may estimate a range to the first device and/or a location of the first device based on a correlation of the series of pulses representing the PHY payload of the ranging frame. The first device may apply a coding scheme to the PHY payload that reduces, or minimizes, a bit error rate of the correlation at the second device, may apply a cyclic redundancy check, may transmit the PHY payload using a spreading factor greater than one, and/or may apply encryption to the PHY payload for integrity check purposes.