OVERLAYING DIGITAL SIGNALS ON ANALOG WIRELESS COMMUNICATION SIGNALS

摘要

A method and system of providing digital communications over frequencies concurrently utilized for analog communications. In one embodiment, the method (400) includes the step of establishing (410) a digital channel including two or more analog channels that are concurrently used to provide analog communications. A spread spectrum digital waveform is generated (420) having its energy spread throughout the bandwidth of the digital channel. The spread spectrum digital waveform is modulated (420) to include information to be communicated digitally and transmitted (430) over the digital channel. The transmitted modulated spread spectrum digital waveform is received (450) and demodulated (460) to obtain the information.