Antenna sharing for channel sounding applications

A method, comprising:

• transmitting, by a first antenna associated with a second radio of a wireless communication device, a first signal having a first phase, wherein the first signal is generated by a first radio of a wireless communication device, wherein the second radio is configured for a different communication technology than the first radio;
• receiving, by the first radio from a peripheral device via the first antenna, a second signal;
• obtaining, by the first radio, a second phase of the second signal;
• and
• determining a first distance between the wireless communication device and the peripheral device using a phase difference between the first and second phases.

A system, comprising:

• a memory configured to store instructions;
• and
• a processor configured communicatively coupled to the memory and configured to execute the instructions to:
• iteratively connect a Bluetooth (BT) radio to each of a plurality of antennas, wherein each antenna is configured to operate on a common frequency band, and wherein the plurality of antennas comprises a Wi-Fi antenna;
• for each antenna,
• perform a plurality of channel sounding events by communicating with a peripheral device according to BT standards;
• and
• determine a set of distances between the BT radio and the peripheral device based on the channel sounding events;
• and
• estimate a real-world distance by aggregating the sets of distances between the BT radio and the peripheral device.