Patent ID: 11949628
Assignee: AMAZON TECHNOLOGIES, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 16:
17. A first wireless device comprising:
millimeter wave (mmWave) frequency front-end (FFE) circuitry; and
a processor coupled to the mmWave FFE circuitry, wherein the processor is to:
determine received signal strength indicator (RSSI) value associated with a wireless channel between the first wireless device and a second wireless device, wherein the wireless channel is in a millimeter wave (mmWave) frequency range;
determine phase value associated with the wireless channel;
determine a state of motion of the first wireless device using the RSSI value and the phase value;
send data to the second wireless device using a first subcarrier structure of an Orthogonal Frequency Division Multiplexing (OFDM) physical layer, in response to the state of motion being a first state of motion; or
send the data to the second wireless device using a second subcarrier structure of the OFDM physical layer, in response to the state of motion being a second state of motion, wherein movement of the first wireless device is greater in the second state of motion than the first state of motion.