# US 12,602,621 B2 · Method and apparatus for performing wireless sensing by collecting empty data on basis of wireless sensing > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,602,621 B2 - Document ID: US12602621B2 - Status: Granted - Kind: B2 - Application number: 18/270,452 - Filed: 2021-01-05 - Published: 2024-02-22 - Granted: 2026-04-14 - Earliest claimed: 2021-01-05 - Assignees: LG Electronics Inc. - Applicants: LG Electronics Inc. - Inventors: Jeonghwan Yoon; Hangyu Cho; Hongwon Lee; Homin Yoo; Taesung Lim - Web page: https://patentgrep.com/patent/US12602621B2 ## CPC - G06N 3/08: Learning methods - G06N 20/00: Machine learning - G06N 3/0455: Auto-encoder networks; Encoder-decoder networks - G06N 3/0895: Weakly supervised learning, e.g. semi-supervised or self-supervised learning - G06N 3/09: Supervised learning - H04B 17/309: Measuring or estimating channel quality parameters - H04W 4/20: Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel - H04W 4/33: for indoor environments, e.g. buildings - H04W 84/12: WLAN [Wireless Local Area Networks] - G06N: COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS - H04B: TRANSMISSION - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A method and apparatus for performing wireless sensing in a wireless LAN system on the basis of wireless sensing are proposed. Specifically, a wireless device determines a first time for collecting empty data. The wireless device collects empty data during the first time. The empty data is a wireless signal when there is no user in a preset space. ## Claims ### Claim 1 A method in a wireless LAN system based on wireless sensing, the method comprising: obtaining, by a wireless device, first information on a Personal Electronic Device (PED) connection state of a home network; checking, by the wireless device, an empty state based on the first information; determining, by the wireless device, a first time point to collect empty data after the empty state is checked; collecting, by the wireless device, the empty data only in the first time point; and monitoring, by the wireless device, other information during a time other than the first time point, wherein the empty data is a wireless signal when there is no user in a preset space. ### Claim 2 (depends on 1) The method of claim 1, wherein the first information includes a system log and Dynamic Host Configuration Protocol (DHCP) allocation information, wherein the empty state is a state in which there is no user in the preset space. ### Claim 3 (depends on 1) The method of claim 1, further comprising: obtaining, by the wireless device, second information on a PED device state; and checking, by the wireless device, the empty state based on the second information, wherein the second information includes location information of the PED device and peer to peer (P2P) connection information between the wireless device and the PED. ### Claim 4 (depends on 1) The method of claim 1, further comprising: collecting, by the wireless device, wireless signal in the first time point; and determining, by the wireless device, whether the collected wireless signal is the empty data; and determining, by the wireless device, a second time point, which is another time point for collecting the empty data based on the collected wireless signal being determined not to be the empty data. ### Claim 5 (depends on 4) The method of claim 4, further comprising: generating, by the wireless device, a user model by learning and predicting based on the empty data, based on the collected wireless signal being determined to be the empty data; and performing, by the wireless device, anomaly detection based on the user model or performing intruder detection by recognizing a wireless signal of an intruder. ### Claim 6 (depends on 5) The method of claim 5, wherein the empty data is data labeled with the empty state. ### Claim 7 A wireless device in a wireless LAN system based on wireless sensing, the wireless device comprising: a memory; a transceiver; and a processor being operatively connected to the memory and the transceiver, wherein the processor is configured to: obtain first information on a Personal Electronic Device (PED) connection state of a home network; check an empty state based on the first information; determine a first time point to collect empty data after the empty state is checked; collect the empty data only in the first time point; and monitor other information during a time other than the first time point, wherein the empty data is a wireless signal when there is no user in a preset space. ### Claim 8 (depends on 7) The wireless device of claim 7, wherein the first information includes a system log and Dynamic Host Configuration Protocol (DHCP) allocation information, wherein the empty state is a state in which there is no user in the preset space. ### Claim 9 (depends on 7) The wireless device of claim 7, wherein the processor is further configured to: obtain second information on a PED device state; and check the empty state based on the second information, wherein the second information includes location information of the PED device and peer to peer (P2P) connection information between the wireless device and the PED. ### Claim 10 (depends on 7) The wireless device of claim 7, wherein the processor is further configured to: collect wireless signal in the first time point; and determine whether the collected wireless signal is the empty data; and determine a second time point, which is another time point for collecting the empty data based on the collected wireless signal being determined not to be the empty data. ### Claim 11 (depends on 10) The wireless device of claim 10, wherein the processor is further configured to: generate a user model by learning and predicting based on the empty data, based on the collected wireless signal being determined to be the empty data; and perform anomaly detection based on the user model or perform intruder detection by recognizing a wireless signal of an intruder. ### Claim 12 (depends on 11) The wireless device of claim 11, wherein the empty data is data labeled with the empty state.