Patent ID: 11894902
Assignee: AMAZON TECHNOLOGIES, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. A method comprising:
receiving first channel state information (CSI) data representing channel properties of a first wireless channel used by a first wireless device and a second wireless device located in a geographical region;
determining that a packet drop rate on the first wireless channel satisfies a first criterion;
identifying a set of wireless channels for time-division, channel diversity, wherein the set of wireless channels comprises the first wireless channel, a second wireless channel, and a third wireless channel;
receiving second CSI data representing channel properties of the second wireless channel used by the first wireless device and the second wireless device;
receiving third CSI data representing channel properties of the third wireless channel used by the first wireless device and the second wireless device; and
determining, based on the first, the second, and the third CSI data, an inference probability of a motion or a non-motion condition in the geographical region.