Sleepy device operation in asynchronous channel hopping networks

A method comprising:

• receiving, by an electronic device from a wireless device, a first frame;
• determining a reception time stamp of the first frame;
• determining a first timing position of the wireless device within a hopping sequence;
• after receiving the first frame, transitioning the electronic device to a low power mode;
• after the electronic device transitions to the low power mode, transitioning the electronic device to an active mode;
• after the electronic device transitions to the active mode, determining a listening channel of the wireless device based on the hopping sequence, the reception time stamp, and the first timing position;
• and
• transmitting, by the electronic device, a second frame in the listening channel.

An electronic device comprising:

• an antenna;
• a transceiver coupled to the antenna;
• a battery;
• and
• at least one processor coupled to the antenna, to the transceiver, and to the battery, the at least one processor configurable to:
• receive, via the transceiver via the antenna, a first frame from a wireless device;
• determine a reception time stamp of the first frame;
• determine a first timing position of the wireless device within a hopping sequence;
• after receiving the first frame, transition the electronic device to a low power mode;
• after the electronic device transitions to the low power mode, transition the electronic device to an active mode;
• after the electronic device transitions to the active mode, determine a listening channel of the wireless device based on the hopping sequence, the reception time stamp, and the first timing position;
• and
• transmit, via the transceiver and the antenna, a second frame in the listening channel.