Transmit power and receive gain adjustments in multi-radio devices

A device comprising:

• a first radio configured to engage in communications using a first wireless communications protocol (WCP);
• a second radio configured to engage in communications using a second WCP;
• at least one processor;
• and
• at least one computer-readable medium encoded with instructions which, when executed by the at least one processor, cause the device to:
• receive an indication of transmission activity of the first radio, the indication including a transmit power being used by the first radio,
• determine a maximum receive gain for the second radio based at least in part on the transmit power and a stored value corresponding to interference to the second radio caused by the first radio,
• engage in receive activity using the second radio and the maximum receive gain,
• determine a potential receive gain for the receive activity,
• prior to engaging in the receive activity, determine the potential receive gain is more than the maximum receive gain, and
• use the maximum receive gain for the receive activity.

A device comprising:

• a first radio configured to engage in communications using a first wireless communications protocol (WCP);
• a second radio configured to engage in communications using a second WCP;
• at least one processor;
• and
• at least one computer-readable medium encoded with instructions which, when executed by the at least one processor, cause the device to:
• receive an indication of transmission activity of the first radio, the indication including a transmit power being used by the first radio,
• determine a maximum receive gain for the second radio based at least in part on the transmit power and a stored isolation value corresponding to a predetermined measurement of isolation between the first radio and the second radio, and
• engage in receive activity using the second radio and the maximum receive gain.

A device comprising:

• a first radio configured to engage in communications using a first wireless communications protocol (WCP);
• a second radio configured to engage in communications using a second WCP;
• at least one processor;
• and
• at least one computer-readable medium encoded with instructions which, when executed by the at least one processor, cause the device to:
• receive a first indication of transmission activity of the first radio, the first indication including a transmit power being used by the first radio,
• determine a maximum receive gain for the second radio based at least in part on the transmit power and a stored value corresponding to interference to the second radio caused by the first radio,
• engage in first receive activity, during a first time period, using the second radio and the maximum receive gain,
• receive a second indication of second receive activity of the second radio, the second indication including a second receive gain of the second radio,
• determine a maximum transmit power for the first radio based at least in part on the second receive gain and the stored value, and
• engage in second transmit activity, during a second time period, for a first data packet using the first radio and the maximum transmit power.

A device comprising

• a first radio configured to engage in communications using a first wireless communications protocol (WCP);
• a second radio configured to engage in communications using a second WCP;
• at least one processor;
• and
• at least one computer-readable medium encoded with instructions which, when executed by the at least one processor, cause the device to:
• receive an indication of transmission activity of the first radio, the indication including a transmit power being used by the first radio,
• determine a maximum receive gain for the second radio based at least in part on the transmit power and a stored value corresponding to interference to the second radio caused by the first radio, wherein the stored value further corresponds to interference caused to the second radio by a third radio, and
• engage in receive activity using the second radio and the maximum receive gain.

A computer-implemented method comprising:

• receiving an indication of receive activity of a first radio of a device, the indication including a receive gain of the first radio, the first radio configured to engage in communications using a first wireless communications protocol (WCP);
• determining, for a second radio of the device, a transmit power based at least in part on the receive gain and a stored value corresponding to interference to the second radio caused by the first radio, the second radio configured to engage in communications using a second WCP;
• and
• engaging in transmit activity for a first data packet using the second radio and the transmit power.