Patent ID: 11962360
Assignee: COMCAST CABLE COMMUNICATIONS, LLC
Field: Digital communication (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 8:
9. A method comprising:
receiving, from a plurality of devices at a premises, first wireless communication signals;
determining, based on first strengths associated with the first wireless communication signals, a first group of spatially static devices of the plurality of devices associated with a first area of the premises;
determining, based on the first strengths, a second group of spatially static devices of the plurality of devices associated with a second area of the premises;
determining, based on changes in second strengths of second wireless communication signals received from the first group of spatially static devices and the second group of spatially static devices within a first time period, a user activity pattern; and
determining, based on the user activity pattern and third strengths of third wireless communication signals received from at least one of the first group of spatially static devices or from at least one of the second group of spatially static devices during a second time period, abnormal user activity.