Same channel repeater for satellite and terrestrial links

A repeater system comprising:

• a satellite antenna array;
• a terrestrial antenna;
• a satellite transceiver coupled to the satellite antenna array;
• a terrestrial transceiver coupled to the terrestrial antenna;
• an adaptive null steerer;
• and
• a controller communicatively coupled to the satellite transceiver, the terrestrial transceiver, and the adaptive null steerer, and configured to
• receive, via satellite antenna array, a first downlink signal having a first frequency and a second downlink signal having the first frequency;
• receive, via the terrestrial antenna, a plurality of terrestrial return link signals from a plurality of user terminals, the plurality of uplink signals having a second frequency;
• generate, with the adaptive null steerer, a substantially interference-free input signal based on the first and second downlink signals;
• generate a repeated downlink signal based on the substantially interference-free input signal;
• multiplex the plurality of terrestrial return link signals into a combined uplink signal;
• transmit, via the terrestrial transceiver, the repeated downlink signal at the first frequency;
• and
• transmit, via the satellite transceiver, the combined uplink signal at the second frequency.

A method comprising:

• receiving, via a satellite antenna, a downlink signal having a first frequency;
• receiving, via a terrestrial antenna, a plurality of terrestrial return link signals from a plurality of user terminals, the plurality of uplink signals having a second frequency;
• receiving, from a cancellation signal generator, a cancellation signal based on the downlink signal and a feedback channel response;
• subtracting the cancellation signal from the downlink signal to generate a substantially interference-free input signal;
• generating the repeated downlink signal based on the substantially interference-free input signal;
• generating a repeated downlink signal based on the substantially interference-free input signal;
• multiplexing the plurality of terrestrial return link signals into a combined uplink signal;
• transmitting, via a terrestrial transceiver, the repeated downlink signal at the first frequency;
• and
• transmitting, via a satellite transceiver, the combined uplink signal at the second frequency.