Patent ID: 11924923
Assignee: INTEL CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. A non-transitory computer-readable storage medium that stores instructions for execution by processing circuitry of an access point (AP), wherein the instructions configure the AP to perform a wireless local area network (WLAN) sensing procedure to obtain sensing measurements for channels between stations (STAs) for detecting movement of objects other than the STAs in an environment of the AP,
wherein for trigger based (TB) sensing, the processing circuitry is configured to:
encode a first trigger frame (TF) for transmission to initiate trigger-based (TB) sensing with a plurality of stations (STAs);
encode a second TF for transmission to solicit transmissions from two or more STAs of the plurality that have responded to the first TF, the second TF to allocate uplink resources to the two or more STAs for concurrent transmissions by the two or more STAs, the allocated uplink resources for transmissions covering a full channel bandwidth;
decode responder-to-initiator transmissions concurrently received from the two or more STAs in response to the second TF, the responder-to-initiator transmissions covering the full channel bandwidth and concurrently received on the allocated uplink resources;
obtain sensing measurements based on the responder-to-initiator transmissions concurrently received from the two or more STAs;
encode first sensing measurement results comprising first channel state information (CSI) changes determined from the responder-to-initiator transmissions concurrently received from the two or more STAs, the first CSI changes quantifying a difference between a current measured CSI and a previous measured CSI for each of the two or more STAs;
decode second sensing measurement results received from the two or more STAs comprising second CSI changes determined by the two or more STAs for channels with each of the two or more STAs; and
process the first and second CSI changes to detect movement of objects other than the STAs in the environment of the AP.