Full duplex wireless transmission with channel phase-based encryption

摘要

A method comprising: at a first transceiver, transmitting a plurality of signals to a second transceiver and receiving corresponding receive signals from the second transceiver, wherein each transmitted signal is sent using a channel perturbation; measuring a plurality of phase values, wherein each phase value is a phase difference between one of the plurality of transmitted signals and corresponding receive signal; masking a subsequent phase modulated signal employing phase rotation at the first transceiver using the plurality of phase values.

主权项

1. A method comprising:
at a first transceiver, transmitting a plurality of signals to a second transceiver and receiving corresponding receive signals from the second transceiver, wherein each transmitted signal is sent using a respective channel-perturbation-induced phase characteristic; measuring a plurality of round-trip phase values, wherein each round-trip phase value is a phase difference between one of the plurality of transmitted signals and corresponding receive signal, each round-trip phase value being dependent upon at least the respective channel-perturbation-induced phase characteristic; masking symbols of a subsequent phase modulated signal at the first transceiver by using the plurality of measured round-trip phase values to change the phase of the symbols of the subsequent phase modulated signal.