Motion detection using wireless local area networks

A wireless local area network (WLAN) device, configured as a WLAN Access Point (AP), comprising:

• a WLAN radio transceiver;
• a processor and memory system to implement a motion sensing manager application configured to:
• transmit, using the WLAN radio transceiver, a sounding packet to another WLAN device, the other WLAN device being a WLAN AP;
• receive, from the other WLAN device, an acknowledgement (ACK) of reception of the sounding packet by the other WLAN device;
• using the received ACK, determine Channel State Information (CSI) for a radio frequency (RF) signal path between the WLAN device and the other WLAN device;
• aggregate the determined CSI with additional CSI;
• and
• determine, using the aggregated CSI, a presence or a motion within a structure for classification.

A method for classifying motion, by a first wireless local area network (WLAN) device in a WLAN network, the method comprising:

• determining, by the first WLAN device, that a second WLAN device can be updated to transmit sounding packets for motion classification;
• initiating an update request that is effective to cause a cloud-based server to update software in the second WLAN device;
• receiving, by the first WLAN device, a first sounding packet from the second WLAN device after the update of the software of the second WLAN device;
• and
• transmitting, to the second WLAN device, a first acknowledgement (ACK) of receiving the first sounding packet, the transmitting being effective to cause the second WLAN device to:
• determine Channel State Information (CSI) for a radio frequency (RF) signal path between the first WLAN device and the second WLAN device;
• and
• transmit the determined CSI to the first WLAN device.