CN-122029401-A - System and method for Wi-Fi sensing using a preferred backhaul sensing link in a mesh network

Abstract

A method is provided for Wi-Fi sensing performed by a networked device operating as part of a mesh network and implementing a sense controller. The networked device may include at least one processor configured to execute instructions. The networking device may be configured to transmit a backhaul determination message to one or more networking devices and receive a backhaul determination response from the one or more networking devices. The backhaul determination response may be used to identify a possible backhaul link between the one or more networked devices. A preferred sensing link may be identified from the possible backhaul links, wherein each of the preferred sensing links is associated with a respective sensing target. A mesh network may be established between the one or more networked devices in the sensing space according to an operating backhaul link selected from the possible backhaul links. One or more preferred sense initiation messages may be sent to initiate a sense measurement on a selected preferred sense link that is not one of the operating backhaul links.

Inventors

• CHRIS BEG
• M. Omir

Assignees

• 认知系统公司

Dates

Publication Date

20260512

Application Date

20240930

Priority Date

20231012

Claims (20)

1. 1. A method for Wi-Fi sensing performed by a networked device operating as part of a mesh network and implementing a sensing controller, the networked device comprising at least one processor configured to execute instructions, the method comprising: Transmitting a backhaul determination message to one or more networked devices; Receiving a backhaul determination response from the one or more networked devices; identifying a likely backhaul link between the one or more networked devices based on the backhaul determination response; Identifying preferred sensing links from the possible backhaul links, wherein each of the preferred sensing links is associated with a respective sensing target; Establishing a mesh network between the one or more networked devices in the sensing space according to an operating backhaul link selected from the possible backhaul links, and One or more preferred sense initiation messages are sent to initiate a sense measurement on a selected preferred sense link that is not one of the operating backhaul links.
2. 2. The method of claim 1, wherein the backhaul determination response includes at least one of a sensing capability element and a backhaul condition element.
3. 3. The method of claim 1, wherein a relayed backhaul determination response from the backhaul determination response includes information regarding networked devices not included in and in communication with the one or more networked devices.
4. 4. The method of claim 1, further comprising selecting the selected preferred sensing link from the possible backhaul links according to a desired sensing target that matches a corresponding sensing target associated with the selected preferred sensing link.
5. 5. The method of claim 1, wherein the one or more preferred sense initiation messages are configured to initiate a sense-responder-to-sense-responder sensing session between a first networked device and a second networked device, wherein the selected preferred sense link is between the first networked device and the second networked device.
6. 6. The method of claim 5, wherein the one or more preferred sense initiation messages are further configured to designate a third networking device as a proxy to communicate with the first networking device and the second networking device to initiate the sense responder to sense responder sensing session.
7. 7. The method of claim 6, wherein the first networking device and the second networking device do not share a basic service set.
8. 8. The method according to claim 5, further comprising: transmitting a sensing measurement report request to the first networked device, and A sensing measurement report is received from the first networked device.
9. 9. The method of claim 5, wherein the first networking device and the second networking device do not share a basic service set.
10. 10. The method of claim 1, wherein the one or more preferred sense initiation messages are configured to initiate the sense measurement between the networking device and a first networking device over the preferred sense link.
11. 11. The method of claim 10, wherein the networked device and the first networked device do not share a basic service set.
12. 12. The method of claim 11, wherein the one or more preferred sense initiation messages are configured to designate the first networked device as a proxy to initiate the sense measurement with a second networked device that is not in the same basic service set as the networked device and the first networked device.
13. 13. The method of claim 1, wherein the backhaul determination message is included within a beacon frame and the backhaul determination response is included within a probe request frame.
14. 14. A system for Wi-Fi sensing, the system comprising: a networking device operating as part of a mesh network and implementing a sensing controller, the networking device comprising at least one processor configured to execute instructions to: Transmitting a backhaul determination message to one or more networked devices; Receiving a backhaul determination response from the one or more networked devices; identifying a likely backhaul link between the one or more networked devices based on the backhaul determination response; Identifying preferred sensing links from the possible backhaul links, wherein each of the preferred sensing links is associated with a respective sensing target; Establishing a mesh network between the one or more networked devices in the sensing space according to an operating backhaul link selected from the possible backhaul links, and One or more preferred sense initiation messages are sent to initiate a sense measurement on a selected preferred sense link that is not one of the operating backhaul links.
15. 15. The system of claim 14, wherein the backhaul determination response includes at least one of a sensing capability element and a backhaul condition element.
16. 16. The system of claim 14, wherein the relayed backhaul determination response from the backhaul determination response includes information regarding networked devices not included in and in communication with the one or more networked devices.
17. 17. The system of claim 14, further comprising selecting the selected preferred sensing link from the possible backhaul links according to a desired sensing target that matches a corresponding sensing target associated with the selected preferred sensing link.
18. 18. The system of claim 14, wherein the one or more preferred sense initiation messages are configured to initiate a sense-responder-to-sense-responder sensing session between a first networked device and a second networked device, wherein the selected preferred sense link is between the first networked device and the second networked device.
19. 19. The system of claim 18, wherein the one or more preferred sense initiation messages are further configured to designate a third networking device as a proxy to communicate with the first networking device and the second networking device to initiate the sense responder to sense responder sensing session.
20. 20. The system of claim 19, wherein the first networking device and the second networking device do not share a basic service set.

Description

System and method for Wi-Fi sensing using a preferred backhaul sensing link in a mesh network Technical Field The present disclosure relates generally to systems and methods for Wi-Fi sensing. In particular, the present disclosure relates to systems and methods for Wi-Fi sensing in a mesh network using a preferred backhaul sensing link. Background Motion detection systems have been used to detect movement of an object, for example, in an indoor or outdoor area. In some example motion detection systems, infrared or optical sensors are used to detect movement of an object in the sensor field of view. Motion detection systems have been used in security systems, automatic control systems, and other types of systems. WLAN sensing systems (which may be referred to as Wi-Fi sensing systems) are a recent complement to motion detection systems. The Wi-Fi sensing system may be a network of Wi-Fi enabled devices, which may be part of an IEEE 802.11 network. In an example, a Wi-Fi sensing system may be configured to detect a feature of interest in a sensing space. The sensing space may refer to any physical space in which the Wi-Fi sensing system may operate, such as a residential site, workplace, shopping mall, gym or stadium, garden, or any other physical space. Features of interest may include motion and motion tracking of objects, presence detection, intrusion detection, gesture recognition, fall detection, respiratory rate detection, and other applications. A typical Wi-Fi sensing system includes a sensing transmitter (which may be an Access Point (AP) or a non-AP Station (STA)) and a sensing receiver (which is an AP if the sensing transmitter is an STA and an STA if the sensing transmitter is an AP). The sensing transmission is sent from the sensing transmitter to the sensing receiver. The sensing measurement is made at the sensing receiver using the sensing transmission. Disclosure of Invention Systems and methods for Wi-Fi sensing in a mesh network using a preferred backhaul sensing link are provided. In an example embodiment, a method for Wi-Fi sensing performed by a networked device operating as part of a mesh network and implementing a sense controller is described. The networked device includes at least one processor configured to execute instructions. The method includes transmitting a backhaul determination message to one or more networked devices and receiving a backhaul determination response from the one or more networked devices. In some embodiments, the method includes identifying possible backhaul links between the one or more networked devices according to the backhaul determination response, and identifying preferred sensing links from the possible backhaul links, wherein each of the preferred sensing links is associated with a respective sensing target. In some embodiments, the method includes establishing a mesh network between the one or more networked devices in a sensing space according to an operating backhaul link selected from the possible backhaul links, and sending one or more preferred sensing initiation messages to initiate sensing measurements on a selected preferred sensing link that is not one of the operating backhaul links. In some embodiments, the backhaul determination response includes at least one of a sensing capability element and a backhaul condition element. In some embodiments, the relayed backhaul determination response from the backhaul determination response includes information about a networking device that is not included in and in communication with the one or more networking devices. In some embodiments, the method further comprises selecting the selected preferred sensing link from the possible backhaul links according to a desired sensing target that matches a corresponding sensing target associated with the selected preferred sensing link. In some embodiments, the one or more preferred sense initiation messages are configured to initiate a sense-responder-to-sense-responder (SR 2 SR) sense session between a first networked device and a second networked device, in which case the selected preferred sense link is between the first networked device and the second networked device. In some embodiments, the one or more preferred sense initiation messages are further configured to designate a third networking device as a proxy to communicate with the first networking device and the second networking device to initiate the SR2SR sensing session. In some embodiments, the first networking device and the second networking device do not share a basic service set. In some embodiments, the method further includes transmitting a sensing measurement report request to the first networked device, and receiving a sensing measurement report from the first networked device. In some embodiments, the one or more preferred sense initiation messages are configured to initiate the sense measurement between the networking device and a first networking device over the preferred sense link