Systems and methods for Wi-Fi sensing using UL-OFDMA are provided. Wi-Fi sensing systems include sensing devices and sensing transmitters configured to communicate through radio-frequency signals. Initially, first channel resources are allocated to first expected transmissions from the sensing transmitters and first sensing trigger message to trigger first series of sensing transmissions from the sensing transmitters is transmitted. Further, a first series of sensing transmissions is received, and the first series of sensing measurements are generated. Thereafter, identification of feature of interest is obtained and a selection of sensing transmitters is determined. Second channel resources are allocated to second expected transmissions from the selection of sensing transmitters. A second sensing trigger message to trigger a second series of sensing transmissions from the selection of the sensing transmitters is provided. A series of sensing transmissions is received, and a second series of sensing measurements is generated based on the second series of sensing transmissions.
2.
SYSTEMS AND METHODS FOR DETERMINATION OF SENSING ROLES IN A MESH NETWORK
Systems and methods for Wi-Fi sensing are provided. Wi-Fi sensing methods may be carried out by a networking device configured to operate as an access point (AP) within a mesh network. The AP may be configured to identify a reciprocal AP with which the AP has a reciprocal wireless link. The AP may be configured to determine a first AP role determination metric associated with the AP and receive a second AP role determination metric associated with the reciprocal AP. The AP may be configured to compare the first AP role determination metric to the second AP role determination metric to allocate a first sensing role to the AP based on the comparing and allocate a second sensing role to the reciprocal AP based on the comparing.
Systems and methods for accommodating flexibility in sensing transmissions are provided. Wi-Fi sensing systems include sensing devices and remote devices configured to communicate through radio-frequency signals. Initially, a sensing device transmits a sensing configuration message to a remote device. The sensing device receives a sensing configuration response message in response to the sensing configuration message. In an example, the sensing configuration response message may include a transmission capability indication associated with the remote device. The transmission capability indication includes a flexibility indication that the remote device supports flexibility.
Systems and methods for Wi-Fi network evaluation are provided. The methods may be carried out by a networking device operating within a Wi-Fi network including a plurality of stations and a plurality of access points. The networking device may identify a communication link topology of the Wi-Fi network defined by a plurality of communication links between an associated pair of stations and access points. The networking device may receive a plurality of sensing measurements measured according to the communication link topology. A proximity link topology of the Wi-Fi network may be determined based on the plurality of sensing measurements and used to adjust the Wi-Fi network.
H04W 52/36 - Transmission power control [TPC] using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
5.
SYSTEM AND METHOD FOR DISAMBIGUATION OF MULTI-LINK DEVICE IDENTITIES FOR WLAN SENSING OPERATION
Systems and methods are disclosed for disambiguation of multi-link device (MLD) identities for WLAN sensing operation. The method includes receiving a first Association Request frame from a first non-AP MLD and assigning a first Link Group ID to the first non- Access Point (AP) MLD, transmitting a first Association Response frame to the first non-AP MLD and receiving a second Association Request frame from a second non-AP MLD. Thereafter, the method includes assigning a second Link Group ID to the second non-AP MLD and transmitting a second Association Response frame to the second non-AP MLD and transmitting a first Sensing Measurement Request frame to a first station affiliated with the first non-AP MLD to establish a first sensing measurement session and transmitting a second Sensing Measurement Request frame to a second station affiliated with the second non-AP MLD to establish a second sensing measurement session.
G01D 5/48 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using wave or particle radiation means
G01S 13/74 - Systems using reradiation of radio waves, e.g. secondary radar systemsAnalogous systems
H04W 76/15 - Setup of multiple wireless link connections
6.
SYSTEMS AND METHODS FOR WI-FI SENSING USING UPLINK ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS (UL-OFDMA)
Systems and methods for Wi-Fi sensing using UL-OFDMA are provided. Wi-Fi sensing systems include sensing devices and sensing transmitters configured to communicate through radio-frequency signals. Initially, first channel resources are allocated to first expected transmissions from the sensing transmitters and first sensing trigger message to trigger first series of sensing transmissions from the sensing transmitters is transmitted. Further, a first series of sensing transmissions is received, and the first series of sensing measurements are generated. Thereafter, identification of feature of interest is obtained and a selection of sensing transmitters is determined. Second channel resources are allocated to second expected transmissions from the selection of sensing transmitters. A second sensing trigger message to trigger a second series of sensing transmissions from the selection of the sensing transmitters is provided. A series of sensing transmissions is received, and a second series of sensing measurements is generated based on the second series of sensing transmissions.
G01S 13/00 - Systems using the reflection or reradiation of radio waves, e.g. radar systemsAnalogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
G01S 7/00 - Details of systems according to groups , ,
G01S 7/41 - Details of systems according to groups , , of systems according to group using analysis of echo signal for target characterisationTarget signatureTarget cross-section
G01S 13/04 - Systems determining presence of a target
G01S 13/56 - Discriminating between fixed and moving objects or between objects moving at different speeds for presence detection
G01S 13/87 - Combinations of radar systems, e.g. primary radar and secondary radar
H04W 4/33 - Services specially adapted for particular environments, situations or purposes for indoor environments, e.g. buildings
H04W 4/38 - Services specially adapted for particular environments, situations or purposes for collecting sensor information
Systems and methods for accommodating flexibility in sensing transmissions are provided. Wi-Fi sensing systems include sensing devices and remote devices configured to communicate through radio-frequency signals. Initially, a sensing device transmits a sensing configuration message to a remote device. The sensing device receives a sensing configuration response message in response to the sensing configuration message. In an example, the sensing configuration response message may include a transmission capability indication associated with the remote device. The transmission capability indication includes a flexibility indication that the remote device supports flexibility.
A method and system for Wi-Fi sensing are provided. A networking device is configured to operate as a sensing responder and includes at least one processor configured to execute instructions. The instructions cause the networking device to receive a sensing transmission transmitted from a sensing transmitter, perform a sensing measurement on the sensing transmission and obtain a received noise power measurement. The received noise power measurement is associated with the sensing measurement; and the sensing measurement and the received noise power measurement are transferred to a sensing initiator.
Systems and methods are disclosed to perform data link management in multi-link WLAN sensing. The method may be carried out by a networking device. The method includes operating a first data connection and a second data connection. The method further includes obtaining a determination to initiate an unassociated sensing measurement session with an unassociated access point. Further, the method includes obtaining at least one initial TTLM and determining that the at least one initial TTLM requires modification to accommodate the unassociated sensing measurement session and at least one of the uplink data traffic and the downlink data traffic. Thereafter, the method includes transmitting a TTLM request frame containing at least one modified TTLM and receiving a TTLM response frame from the associated access point. The method also includes reconfiguring the networking device according to the at least one modified TTLM to initiate the unassociated sensing measurement session and maintain the first data connection.
Systems and methods for time domain channel representation information for Wi-Fi sensing. Wi-Fi sensing systems include sensing devices and remote devices configured to communicate through radio-frequency signals. Initially, a sensing device receives a channel representation information configuration representative of channel state information in time domain. The sensing device then receives a sensing transmission and generates a sensing measurement based on the sensing transmission. Thereafter, the sensing device generates a time domain representation of the sensing measurement and selects one or more time domain pulses indicative of the time domain representation based on the channel representation information configuration. The sensing device communicates the one or more time domain pulses to a sensing algorithm manager for use in determining motion or movement.
Systems and methods are disclosed to select a common frequency channel for wireless sensing. The method may be carried out by a networking device. The method includes obtaining a collection of one or more self access point (AP) information sets and initializing a local copy of a global AP data set with the collection of one or more self AP information sets. The method further includes receiving one or more collections of one or more other AP information sets and populating the local copy of the global access point data set with the one or more collections of one or more other AP information sets. The method further includes selecting a common frequency channel according to the local copy of the global access point data set. Further, the method includes retuning the radio to the common frequency channel.
G01D 5/48 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using wave or particle radiation means
Systems and methods are disclosed for off-channel sensing measurements carried out by non-Access Point stations. Methods are provided for off-channel sensing measurements. The method may be carried out by a first networking device including a transmitting antenna, a receiving antenna, a radio, and at least one processor configured to execute instructions. The method includes transmitting, by the transmitting antenna, sensing capability information to a sensing initiator device. Further, the method includes receiving, by the receiving antenna, a sensing measurement configuration from the sensing initiator device. The method further includes performing a first retuning of the radio to an off-channel portion of an allocated radio frequency spectrum. The method also includes participating in a sensing measurement session using the off-channel portion. Thereafter, the method includes performing a second retuning of the radio to return the radio to a previous configuration.
G01D 5/48 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using wave or particle radiation means
H04W 76/25 - Maintenance of established connections
Systems and methods for Wi-Fi sensing are provided. Wi-Fi sensing systems include sensing devices and remote devices configured to communicate through radio-frequency signals. Sensing devices and remote devices are configured to communicate with one another to establish sensing transmission configurations through established protocols. Sensing devices described herein are configured to provide Wi-Fi sensing measurements based on the reception of messages transmitted from remote devices according to established configurations.
Systems and methods are disclosed to form a sensing network carried out by a networking device. Methods are provided to form the sensing network. The method may be carried out by a networking device including a transmitting antenna, a receiving antenna, and at least one processor configured to execute instructions. The method includes receiving, from an associated AP, client device information associated with a plurality of client devices in an extended service set. Further, the method includes selecting a PACD from among the plurality of client devices according to the client device information. The method further includes selecting a common frequency channel according to a frequency channel in use by the PACD. The method also includes sending a sensing measurement request frame or receiving a sensing measurement request frame on the selected common frequency channel.
Systems and methods are disclosed for WLAN sensing carried out by a networking device. Methods are provided for WLAN sensing. The method may be carried out by a networking device including a transmitting antenna, a receiving antenna, and at least one processor configured to execute instructions. The method includes identifying a plurality of networking devices operating within a sensing space and identifying a maximum set of unique sensing links between individual ones of the plurality of networking devices. The method further includes causing configuration of a plurality of sensing measurement sessions according to the maximum set of unique sensing links and obtaining a plurality of sensing measurements corresponding to the plurality of sensing measurement sessions. Further, the method includes identifying a reduced set of sensing links based on the plurality of sensing measurements.
Systems and methods for Wi-Fi sensing by networking devices are provided. A sensing transmitter is configured to obtain timing information from an unassociated access point The sending transmitter is further configured to generate local timing information, according to the timing information and to receive a transmission request from the unassociated access point, the transmission request including a timing information update. The timing information update is used to update the local timing information. A transmission response including a timestamp based on updated local timing information is sent responsive to a transmission request.
Systems and methods for Wi-Fi sensing are provided. Wi-Fi systems include a plurality of networking devices including a plurality of sensing capable devices and an access point. The Wi-Fi systems are configured for identifying a candidate set of the plurality of networking devices, establishing a plurality of candidate sensing links between the plurality of candidate devices and the access point, monitoring sensing transmissions transmitted via the plurality of candidate sensing links, identifying a sensing link set according to the sensing transmissions, establishing the plurality of selected sensing links between selected devices of the plurality of candidate devices and the access point. Wi-Fi systems are further configured for updating sensing links according to detected sensing transmissions. Wi-Fi systems may be configured to identify sensing links according to sensing sounding information and/or a plurality of time-domain channel representation information (TD-CRI) profile sets between candidate sensing links.
Systems and methods for Wi-Fi sensing are provided. A method for Wi-Fi sensing carried out by a sensing decision unit in operation on at least one processor configured to execute instructions. Measured channel state information (M-CSI) representing a sensing measurement and receiver front end state information (RFE-SI) are received. According to the RFE-SI, sensing decision input information is determined.
Systems and methods for Wi-Fi sensing is provided. A networking device configured to operate as a sensing receiver and including at least one processor may operate as a system to carry out the Wi-Fi sensing method. The sensing receiver may obtain timing information from an unassociated access point not associated with the sensing receiver and operating as a sensing transmitter. The sensing receiver may generate local timing information according to the timing information. The sensing receiver may receive a sensing transmission from the unassociated access point. The sensing receiver may perform a sensing measurement on the sensing transmission and may associated the sensing measurement with a timestamp based on the local timing information. The sensing receiver may transmit the sensing measurement and the timestamp to the unassociated access point.
A method is described for Wi-Fi sensing. The method is carried out by a networked device operating as a sensing receiver. The networked device includes at least one processor configured to execute instructions. Initially, a series of time domain pulse sets determined from a series of sensing measurements based on a series of sensing transmissions transmitted by a sensing transmitter and received by the networked device over a time interval is obtained. Thereafter, a signature pulse occurring in the time domain pulse sets is identified. A series of amplitudes of the signature pulse in the time domain pulse sets are recorded. Further, a waveform frequency signature of a small motion occurring in a sensing space corresponding with the networked device is identified based on the series of amplitudes of the signature pulse.
G01S 13/56 - Discriminating between fixed and moving objects or between objects moving at different speeds for presence detection
G01S 13/00 - Systems using the reflection or reradiation of radio waves, e.g. radar systemsAnalogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
A method is described for Wi-Fi sensing. The method is carried out by a networking device configured to operate as a sensing initiator and includes at least one processor configured to execute instructions. Initially, a multiway sensing trigger message is transmitted via a transmitting antenna of the networking device. A plurality of sensing transmissions from a plurality of sensing responders responsive to the multiway sensing trigger message is simultaneously received by the networking device via a receiving antenna. A sensing measurement is performed on at least one of the plurality of sensing transmissions.
A method is described for Wi-Fi sensing. The method is carried out by a networking device configured to operate as a station (STA) and includes at least one processor configured to execute instructions. The STA is associated with an original access point (AP) of an original basic service set (BSS) to establish an original association between the STA and the original AP. The STA and the original AP have an original communication link and an original sensing link established therebetween, the original communication link being established for data transmissions and the original sensing link being established for sensing transmissions. A transition management request identifying a preferred communication link between the STA and a preferred AP of a preferred BSS different than the original communication link with the original AP is received. Further, transmission of a transition preference indicating a preference to preserve the original sensing link is caused.
A method for Wi-Fi sensing carried out by networked device is described. Initially, first set of time domain pulses is obtained from first channel representation information determined from first sensing measurement based on first sensing transmission transmitted by sensing transmitter and received by sensing receiver. A first amplitude attenuation is detected between first selected time domain pulse of first set of time domain pulses and first corresponding time domain pulse. Further, second set of time domain pulses is obtained from second channel representation information determined from second sensing measurement based on second sensing transmission transmitted by sensing transmitter and received by sensing receiver. A second amplitude attenuation is detected between second selected time domain pulse of second set of time domain pulses and second corresponding time domain pulse. A time lag is determined between first amplitude attenuation and second amplitude attenuation, and near-far indicator is determined based on time lag.
G01S 5/10 - Position of receiver fixed by co-ordinating a plurality of position lines defined by path-difference measurements
G01S 5/02 - Position-fixing by co-ordinating two or more direction or position-line determinationsPosition-fixing by co-ordinating two or more distance determinations using radio waves
26.
SYSTEMS AND METHODS FOR TIME DOMAIN CHANNEL REPRESENTATION INFORMATION FOR WI-FI SENSING
Systems and methods for time domain channel representation information for Wi-Fi sensing. Wi-Fi sensing systems include sensing devices and remote devices configured to communicate through radio-frequency signals. Initially, a sensing device receives a channel representation information configuration representative of channel state information in time domain. The sensing device then receives a sensing transmission and generates a sensing measurement based on the sensing transmission. Thereafter, the sensing device generates a time domain representation of the sensing measurement and selects one or more time domain pulses indicative of the time domain representation based on the channel representation information configuration. The sensing device communicates the one or more time domain pulses to a sensing algorithm manager for use in determining motion or movement.
H04W 48/16 - DiscoveringProcessing access restriction or access information
G01S 5/02 - Position-fixing by co-ordinating two or more direction or position-line determinationsPosition-fixing by co-ordinating two or more distance determinations using radio waves
H04W 4/33 - Services specially adapted for particular environments, situations or purposes for indoor environments, e.g. buildings
H04W 4/38 - Services specially adapted for particular environments, situations or purposes for collecting sensor information
27.
SYSTEMS AND METHODS FOR OPTIMIZING THE CONFIGURATION OF BACKHAUL LINKS IN A WI-FI MESH NETWORK
A method for Wi-Fi sensing carried out by a networking device operating as part of a mesh network and implementing a multi access point (multi-AP) controller is provided. The method includes establishing a mesh network in a sensing space between one or more networking devices operating as leaf nodes and a mesh root node, the configuration of the mesh network being defined by a current mesh network configuration option (MNCO). Further the method includes iteratively performing a procedure until a sensing preferred MNCO is determined. The iteratively performed procedure includes performing a sensing assessment of the mesh network, determining the current MNCO as the sensing preferred MNCO if the mesh network meets a sensing performance criterion based on the sensing assessment, and selecting a new MNCO as an updated current MNCO based on the sensing assessment and reestablishing the mesh network according to the updated current MNCO if the mesh network does not meet the sensing performance criterion based on the sensing assessment. A mesh network may be established according to the sending preferred MNCO.
G01D 5/48 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using wave or particle radiation means
G01S 11/00 - Systems for determining distance or velocity not using reflection or reradiation
28.
SYSTEMS AND METHODS FOR WI-FI SENSING USING PREFERRED BACKHAUL SENSING LINKS IN A MESH NETWORK
A method for Wi-Fi sensing carried out by a networking device operating as part of a mesh network and implementing a sensing controller is provided. The networking 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 to receive backhaul determination responses from the one or more networking devices. The backhaul determination responses may be used to identify possible backhaul links between the one or more networking devices. Preferred sensing links may be identified from among the possible backhaul links, wherein each of the preferred sensing links is associated with a respective sensing goal. A mesh network may be established in a sensing space between the one or more networking devices according to operating backhaul links selected from the possible backhaul links. One or more preferred sensing initialization messages may be sent to initiate a sensing measurement on a selected preferred sensing link that is not one of the operating backhaul links.
G01D 5/48 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using wave or particle radiation means
H04W 84/18 - Self-organising networks, e.g. ad hoc networks or sensor networks
29.
METHODS AND SYSTEMS FOR DETECTION OF CHANNEL VARIATIONS FOR WI-FI SENSING IN UNOBSERVED BANDWIDTH
Systems and methods for Wi-Fi sensing are provided. A method for Wi-Fi sensing carried out by a sensing device including a processor is described. Initially, first channel state information (CSI) of a first transmission channel representing a first sensing measurement performed on a first sensing transmission transmitted from a sensing transmitter to a sensing receiver in the first transmission channel may be received. A time-domain channel representation (TD-CRI) of the first CSI may be calculated by transforming the first CSI into the time domain. Then, a plurality of estimated channel responses corresponding to a plurality of transmission channels may be generated according to the TD-CRI. One or more preferred transmission channels from among the plurality of transmission channels may be determined according to the plurality of estimated channel responses.
A method for Wi-Fi sensing carried out by a sensing initiator including at least one processor configured to execute instructions is provided. In the method a first sensing measurement report corresponding to a sensing space and to a first plurality of sensing measurements is obtained. An indication of motion in an area of the sensing space is received. After the indication of motion, a second sensing measurement report corresponding to the sensing space and to a second plurality of sensing measurements is obtained. The method may further detect differences between corresponding sensing measurements of the first sensing measurement report and the second sensing measurement report to identify correspondences between the corresponding sensing measurements and the area of the sensing space according to the differences.
Systems and methods for Wi-Fi sensing are provided. A method for Wi-Fi sensing carried out by a sensing device including a processor is described. Initially, a sensing goal is received. Upon receiving the sensing goal, at least one sensing transmitter and at least one sensing receiver are selected according to the sensing goal. Thereafter, an allocation of channel resources reserved for defined transmissions from the at least one sensing transmitter to the at least one sensing receiver is determined according to the sensing goal. The defined transmissions are caused from the at least one sensing transmitter to the at least one sensing receiver according to the allocation of channel resources.
Systems and methods for dynamic channel representations are described. Initially a sensing receiver receives a sensing transmission. The sensing receiver then generates a sensing measurement based on the sensing transmission. Thereafter, the sensing receiver generates a channel representation information of a propagation channel between the sensing receiver and a sensing transmitter based on the sensing measurement. The sensing receiver then obtains a sensing imprint representing a steady-state propagation channel between the sensing receiver and the sensing transmitter. Further, the sensing receiver compares the channel representation information to the sensing imprint and identifies a a difference between the channel representation information and the sensing imprint. The sensing receiver may further send the channel representation information to a sensing algorithm manager.
G01S 7/00 - Details of systems according to groups , ,
G01S 13/00 - Systems using the reflection or reradiation of radio waves, e.g. radar systemsAnalogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
Methods and systems for Wi-Fi sensing carried out by a sensing agent coupled to a transmitting antenna, a receiving antenna, and at least one processor are provided. A sensing agent determines a time window. The sensing agent receives channel state information (CSI) in a frequency domain; generated, by the at least one processor, based on a plurality of sensing transmissions received, via the receiving antenna, from a sensing transmitter in the time window, each of the plurality of sensing transmissions having corresponding CSI. The sensing agent identifies selected CSI from among the corresponding CSI. The sensing agent combines the selected CSI to generate assembled channel state information (A-CSI). The sensing agent sends information representative of the A-CSI to a sensing algorithm manager.
H04B 7/06 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
The present invention provides a method and a system comprising establishing a basic service set that includes an access point and stations, and further provides that, in the process of establishing a basic service set, an access point establishes a sensing measurement setup, obtains a channel sensing metric, selects a transmission configuration, and communicates the transmission configuration to a station. The present invention also provides a method and a system comprising establishing a basic service set that includes an access point and stations, and further provides that, in the process of establishing a basic service set, an access point establishes a sensing measurement setup, obtains channel sensing metrics, determines that a channel sensing metric is below a quality threshold, and in response adjusts basic service set parameters.
A method includes obtaining a set of motion indicator values associated with a time frame. The set of motion indicator values indicating motion detected from wireless links in a wireless communication network during the time frame. The method also includes generating a probability vector comprising values for the connected wireless communication devices and generating spatial coordinates for respective wireless communication devices. The spatial coordinates for each wireless communication device representing a location of the wireless communication device in space. The method also includes modifying the probability vector based on the spatial coordinates of each wireless communication device to generate a modified probability vector representing a probability of motion at the connected wireless communication device during the time frame. The method also includes using the modified probability vector to localize motion relative to the wireless communication device during the time frame.
Systems and methods for Wi-Fi sensing are provided for determining time domain channel representation information. A method for Wi-Fi sensing carried out by a sensing receiver including a transmitting antenna, a receiving antenna, and a processor is described. Initially, a sensing transmission is received. A sensing measurement is generated based on the sensing transmission. In an example, a full time-domain channel representation (TD-CRI) of a propagation channel between the sensing receiver and a sensing transmitter is generated based on the sensing measurement. Thereafter, in an example, principal impulses of the full TD-CRI are identified. The principal impulses represent a subset of time domain pulses of the full TD-CRI. Then, a filtered TD-CRI is identified according to the principal impulses. The filtered TD-CRI is sent to a sensing algorithm manager.
Systems and methods for Wi-Fi sensing are provided. A method for Wi-Fi sensing carried out by a sensing algorithm manager including at least one processor configured to execute instructions. A sensing measurement based on a sensing transmission transmitted by a sensing transmitter and received by a sensing receiver is obtained. Then, a device context of a sensing pair associated with the sensing transmission is determined. The sensing pair includes the sensing transmitter and the sensing receiver. The sensing measurement is associated with the device context. A sensing algorithm is executed according to the sensing measurement and the device context to generate a sensing result.
Systems and methods for Wi-Fi sensing are provided. A method for Wi-Fi sensing carried out by a sensing receiver including a transmitting antenna, a receiving antenna, and a processor is described. Initially, sensing transmissions from a plurality of sensing transmitters are received. Then, a sensing measurement representing a channel state information (CSI) is generated based on the sensing transmissions. Thereafter, component frequency bands associated with a virtual wideband sensing transmission from a selected sensing transmitter of the plurality of sensing transmitters are identified. A reduced channel representation information (CRI) including the component frequency bands associated with the selected sensing transmitter is generated and component frequency bands associated with a remainder of the plurality of sensing transmitters are omitted. The reduced CRI is sent to a sensing algorithm manager.
H04B 7/06 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
In a general aspect, a set of observed frequency-domain channel responses is filtered to remove noise or distortions that are not related to changes in the physical environment. In some aspects, for each frequency-domain channel response, a time-domain channel response is generated based on the frequency-domain channel response; and a filtered time-domain channel response is generated based on a constraint applied to the time-domain channel response. Additionally, a reconstructed frequency-domain channel response is generated based on the filtered time-domain channel response. An error signal is also generated, and a determination is made as to whether the error signal satisfies a criterion. The error signal can be indicative of a difference between the frequency-domain channel response and the reconstructed frequency-domain channel response. In response to each of the error signals satisfying the criterion, motion of an object in a space is detected based on the set of frequency-domain channel responses.
G01S 5/00 - Position-fixing by co-ordinating two or more direction or position-line determinationsPosition-fixing by co-ordinating two or more distance determinations
G01S 5/02 - Position-fixing by co-ordinating two or more direction or position-line determinationsPosition-fixing by co-ordinating two or more distance determinations using radio waves
G01S 7/41 - Details of systems according to groups , , of systems according to group using analysis of echo signal for target characterisationTarget signatureTarget cross-section
G01S 13/04 - Systems determining presence of a target
G01S 13/50 - Systems of measurement based on relative movement of target
H04L 5/00 - Arrangements affording multiple use of the transmission path
H04L 25/03 - Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
40.
SYSTEMS AND METHODS FOR OFDMA MULTI-USER CASCADING SEQUENCE OPTIMIZATION FOR WI-FI SENSING
Systems and methods for Wi-Fi sensing are provided. A method for Wi-Fi sensing carried out by sensing receiver including a transmitting antenna, a receiving antenna, and a processor is described. Initially, a compound sensing trigger message is generated. The compound sensing trigger message is then transmitted to a sensing transmitter. A sensing response announcement transmitted by the sensing transmitter is received. Also, a sensing response null data PPDU (NDP); is received. A sensing measurement is generated based on the sensing response NDP.
G01S 7/00 - Details of systems according to groups , ,
G01S 13/00 - Systems using the reflection or reradiation of radio waves, e.g. radar systemsAnalogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
G01S 13/86 - Combinations of radar systems with non-radar systems, e.g. sonar, direction finder
Systems and methods for Wi-Fi sensing are provided. A networking device is configured to transmit a sensing trigger message including information about a plurality of fast sounding sensing signals to be transmitted. The networking device receives the plurality of fast sounding sensing signals transmitted by a sensing transmitter in response to the sensing trigger message within a transmission opportunity. The networking device performs a plurality of sensing measurements on the plurality of fast sounding sensing signals wherein the plurality of sensing measurements include measurements of Doppler frequency information associated with motion in a sensing space.
Systems and methods for Wi-Fi sensing are provided. A method for Wi-Fi sensing carried out by a sensing receiver is described. A hybrid sensing-data trigger is created. The hybrid sensing-data trigger includes resource allocation fields corresponding to each of first sensing channel resource allocation to first sensing transmitter, second sensing channel resource allocation to second sensing transmitter, first data channel resource allocation to first station, and second data channel resource allocation to second station. The hybrid sensing-data trigger is transmitted to first sensing transmitter, second sensing transmitter, first station, and second station. Subsequently, first sensing transmission is received from first sensing transmitter, second sensing transmission is received from second sensing transmitter, first data transmission is received from first station, and second data transmission is received from second station. A first sensing measurement is generated based on first sensing transmission and second sensing measurement is generated based on second sensing transmission.
H04W 72/0453 - Resources in frequency domain, e.g. a carrier in FDMA
G01S 7/00 - Details of systems according to groups , ,
G01S 13/00 - Systems using the reflection or reradiation of radio waves, e.g. radar systemsAnalogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
G01S 13/04 - Systems determining presence of a target
G01S 13/87 - Combinations of radar systems, e.g. primary radar and secondary radar
43.
OPTIMIZING SENSING SOUNDING PLANS BASED ON SPATIAL CORRELATIONS
An access point operating as a sensing initiator may be configured for Wi-Fi sensing. Wi-Fi sensing may include receiving a plurality of sensing measurements made on a plurality of sensing links between the access point and a respective plurality of stations. The access point may detect a plurality of transitions in the plurality of sensing measurements. The access point may determine a plurality of centrality scores, each centrality score being associated with a sensing link of the plurality of sensing links. The access point may determine a sensing sounding plan according to the plurality of centrality scores and a sensing goal.
G01D 5/48 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using wave or particle radiation means
G01S 11/00 - Systems for determining distance or velocity not using reflection or reradiation
44.
Determining a location of motion detected from wireless signals
In a general aspect, a method for determining a location of motion detected by wireless communication devices in a wireless communication network includes obtaining motion data associated with a first time frame. The motion data includes a set of motion indicator values. The method also includes generating a first probability vector based on the set of motion indicator values and obtaining a second probability vector generated from motion data associated with a prior time frame. The method additionally includes obtaining a transition probability matrix that includes transition values and non-transition values. The method further includes determining, by operation of a data processing apparatus, a location of the motion detected from the wireless signals exchanged during the first time frame.
Systems and methods for accommodating flexibility in sensing transmissions are provided. Wi-Fi sensing systems include sensing devices and remote devices configured to communicate through radio-frequency signals. Initially, a sensing device transmits a sensing configuration message to a remote device. The sensing device receives a sensing configuration response message in response to the sensing configuration message. In an example, the sensing configuration response message may include a transmission capability indication associated with the remote device. The transmission capability indication includes a flexibility indication that the remote device supports flexibility.
In a general aspect, a motion sensing system is configured for operation in an environment. In some aspects, device information for a plurality of wireless communication devices available for use in the motion sensing system is obtained. The motion sensing system data are sent from the motion sensing system to a cloud-based computer system. The motion sensing system data includes the device information and environment information. In response to the motion sensing system data, health score data for the plurality of wireless communication devices are received from the cloud-based computer system. Health scores for the plurality of wireless communication devices are configured according to the health score data. Based on the health scores, a subset of the plurality of wireless communication devices are selected for motion detection. The motion sensing system is updated to use the selected subset of wireless communication devices for motion detection.
In a general aspect, a motion sensing system is configured for operation in an environment. In some aspects, device information for a plurality of wireless communication devices available for use in the motion sensing system is obtained. The motion sensing system data are sent from the motion sensing system to a cloud-based computer system. The motion sensing system data includes the device information and environment information. In response to the motion sensing system data, health score data for the plurality of wireless communication devices are received from the cloud-based computer system. Health scores for the plurality of wireless communication devices are configured according to the health score data. Based on the health scores, a subset of the plurality of wireless communication devices are selected for motion detection. The motion sensing system is updated to use the selected subset of wireless communication devices for motion detection.
Systems and methods for Wi-Fi sensing using UL-OFDMA are provided. Wi-Fi sensing systems include sensing devices and sensing transmitters configured to communicate through radio-frequency signals. Initially, first channel resources are allocated to first expected transmissions from the sensing transmitters and first sensing trigger message to trigger first series of sensing transmissions from the sensing transmitters is transmitted. Further, a first series of sensing transmissions is received, and the first series of sensing measurements are generated. Thereafter, identification of feature of interest is obtained and a selection of sensing transmitters is determined. Second channel resources are allocated to second expected transmissions from the selection of sensing transmitters. A second sensing trigger message to trigger a second series of sensing transmissions from the selection of the sensing transmitters is provided. A series of sensing transmissions is received, and a second series of sensing measurements is generated based on the second series of sensing transmissions.
G01S 13/00 - Systems using the reflection or reradiation of radio waves, e.g. radar systemsAnalogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
G01S 7/00 - Details of systems according to groups , ,
G01S 7/41 - Details of systems according to groups , , of systems according to group using analysis of echo signal for target characterisationTarget signatureTarget cross-section
G01S 13/04 - Systems determining presence of a target
G01S 13/56 - Discriminating between fixed and moving objects or between objects moving at different speeds for presence detection
G01S 13/87 - Combinations of radar systems, e.g. primary radar and secondary radar
H04W 4/33 - Services specially adapted for particular environments, situations or purposes for indoor environments, e.g. buildings
H04W 4/38 - Services specially adapted for particular environments, situations or purposes for collecting sensor information
Systems and methods for Wi-Fi sensing are provided. Wi-Fi sensing systems include sensing devices and remote devices configured to communicate through radio-frequency signals. Sensing devices and remote devices are configured to communicate with one another to establish sensing transmission configurations through established protocols. Sensing devices described herein are configured to provide Wi-Fi sensing measurements based on the reception of messages transmitted from remote devices according to established configurations.
Systems and methods for Wi-Fi sensing are provided. Wi-Fi sensing methods may be carried out by a networking device configured to operate as an access point (AP) within a mesh network. The AP may be configured to identify a reciprocal AP with which the AP has a reciprocal wireless link. The AP may be configured to determine a first AP role determination metric associated with the AP and receive a second AP role determination metric associated with the reciprocal AP. The AP may be configured to compare the first AP role determination metric to the second AP role determination metric to allocate a first sensing role to the AP based on the comparing and allocate a second sensing role to the reciprocal AP based on the comparing.
Systems and methods for Wi-Fi network evaluation are provided. The methods may be carried out by a networking device operating within a Wi-Fi network including a plurality of stations and a plurality of access points. The networking device may identify a communication link topology of the Wi-Fi network defined by a plurality of communication links between an associated pair of stations and access points. The networking device may receive a plurality of sensing measurements measured according to the communication link topology. A proximity link topology of the Wi-Fi network may be determined based on the plurality of sensing measurements and used to adjust the Wi-Fi network.
Systems and methods for Wi-Fi sensing are provided. A networking device is configured to transmit a sensing trigger message including information about a plurality of fast sounding sensing signals to be transmitted. The networking device receives the plurality of fast sounding sensing signals transmitted by a sensing transmitter in response to the sensing trigger message within a transmission opportunity. The networking device performs a plurality of sensing measurements on the plurality of fast sounding sensing signals wherein the plurality of sensing measurements include measurements of Doppler frequency information associated with motion in a sensing space.
Systems and methods for Wi-Fi sensing are provided. A networking device is configured to transmit a sensing trigger message including information about a plurality of fast sounding sensing signals to be transmitted. The networking device receives the plurality of fast sounding sensing signals transmitted by a sensing transmitter in response to the sensing trigger message within a transmission opportunity. The networking device performs a plurality of sensing measurements on the plurality of fast sounding sensing signals wherein the plurality of sensing measurements include measurements of Doppler frequency information associated with motion in a sensing space.
A method and system for Wi-Fi sensing are provided. A networking device is configured to operate as a sensing responder and includes at least one processor configured to execute instructions. The instructions cause the networking device to receive a sensing transmission transmitted from a sensing transmitter, perform a sensing measurement on the sensing transmission and obtain a received noise power measurement. The received noise power measurement is associated with the sensing measurement; and the sensing measurement and the received noise power measurement are transferred to a sensing initiator.
Systems and methods for time domain channel representation information for Wi-Fi sensing. Wi-Fi sensing systems include sensing devices and remote devices configured to communicate through radio-frequency signals. Initially, a sensing device receives a channel representation information configuration representative of channel state information in time domain. The sensing device then receives a sensing transmission and generates a sensing measurement based on the sensing transmission. Thereafter, the sensing device generates a time domain representation of the sensing measurement and selects one or more time domain pulses indicative of the time domain representation based on the channel representation information configuration. The sensing device communicates the one or more time domain pulses to a sensing algorithm manager for use in determining motion or movement.
H04W 48/16 - DiscoveringProcessing access restriction or access information
G01S 5/02 - Position-fixing by co-ordinating two or more direction or position-line determinationsPosition-fixing by co-ordinating two or more distance determinations using radio waves
H04W 4/33 - Services specially adapted for particular environments, situations or purposes for indoor environments, e.g. buildings
H04W 4/38 - Services specially adapted for particular environments, situations or purposes for collecting sensor information
56.
IDENTIFYING MOTION ZONES BASED ON USER INPUT AND MOTION-SENSING DATA DERIVED FROM WIRELESS SIGNALS
In a general aspect, a plurality of motion zones are identified in a motion detection system. Each of the plurality of motion zones represents a distinct region in a space associated with a wireless communication network, and at least a subset of the motion zones are associated with respective wireless communication devices in the wireless communication network. Motion-sensing data is generated based on first wireless signals transmitted during a first time period between pairs of wireless communication devices. The motion-sensing data represents motion in the space. A new motion zone is identified based on the motion-sensing data; the new motion zone is not associated with any of the wireless communication devices. User input is received in response to a graphical representation of the new motion zone being displayed on a display device. The motion detection system is updated based on the user input.
H04W 4/02 - Services making use of location information
G01S 5/02 - Position-fixing by co-ordinating two or more direction or position-line determinationsPosition-fixing by co-ordinating two or more distance determinations using radio waves
G01S 13/74 - Systems using reradiation of radio waves, e.g. secondary radar systemsAnalogous systems
G01S 13/88 - Radar or analogous systems, specially adapted for specific applications
57.
Identifying Motion Zones Based on User Input and Motion-Sensing Data Derived from Wireless Signals
In a general aspect, a plurality of motion zones are identified in a motion detection system. Each of the plurality of motion zones represents a distinct region in a space associated with a wireless communication network, and at least a subset of the motion zones are associated with respective wireless communication devices in the wireless communication network. Motion-sensing data is generated based on first wireless signals transmitted during a first time period between pairs of wireless communication devices. The motion-sensing data represents motion in the space. A new motion zone is identified based on the motion-sensing data; the new motion zone is not associated with any of the wireless communication devices. User input is received in response to a graphical representation of the new motion zone being displayed on a display device. The motion detection system is updated based on the user input.
G01S 13/56 - Discriminating between fixed and moving objects or between objects moving at different speeds for presence detection
H04W 4/021 - Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
G01S 7/00 - Details of systems according to groups , ,
G01S 13/00 - Systems using the reflection or reradiation of radio waves, e.g. radar systemsAnalogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
58.
Processing Radio Frequency Wireless Signals in a Motion Detection System
In a general aspect, a method of operating a motion detection system includes receiving, by operation of one or more communication interfaces, radio frequency wireless signals communicated by a plurality of wireless communication devices. The radio frequency wireless signals are processed to generate channel information. By operation of a motion detection engine of the motion detection system, generating motion data based on the channel information that includes a series of vectors in a series of time points within the time period. The motion data includes motion indicator values indicative of a degree of motion that occurred in the space and motion localization values for a plurality of locations. Processing the series of vectors includes determining an aggregate degree of motion that occurred at each of the individual locations during the time period and determining a duration of activity that occurred at each of the individual locations during the time period.
Systems and methods for Wi-Fi sensing are provided. A method for Wi-Fi sensing carried out by a sensing decision unit in operation on at least one processor configured to execute instructions. Measured channel state information (M-CSI) representing a sensing measurement and receiver front end state information (RFE-SI) are received. According to the RFE-SI, sensing decision input information is determined.
Systems and methods for accommodating flexibility in sensing transmissions are provided. Wi-Fi sensing systems include sensing devices and remote devices configured to communicate through radio-frequency signals. Initially, a sensing device transmits a sensing configuration message to a remote device. The sensing device receives a sensing configuration response message in response to the sensing configuration message. In an example, the sensing configuration response message may include a transmission capability indication associated with the remote device. The transmission capability indication includes a flexibility indication that the remote device supports flexibility.
Systems and methods for Wi-Fi sensing are provided. Wi-Fi systems include a plurality of networking devices including a plurality of sensing capable devices and an access point. The Wi-Fi systems are configured for identifying a candidate set of the plurality of networking devices, establishing a plurality of candidate sensing links between the plurality of candidate devices and the access point, monitoring sensing transmissions transmitted via the plurality of candidate sensing links, identifying a sensing link set according to the sensing transmissions, establishing the plurality of selected sensing links between selected devices of the plurality of candidate devices and the access point. Wi-Fi systems are further configured for updating sensing links according to detected sensing transmissions. Wi-Fi systems may be configured to identify sensing links according to sensing sounding information and/ or a plurality of time- domain channel representation information (TD-CRI) profile sets between candidate sensing links.
In a general aspect, a mobile wireless communication device is operated for motion sensing. In some aspects, wireless signals transmitted from a second wireless communication device through a space during a time period are received at a first wireless communication device. By operation of the first wireless communication device, channel state information is generated based on the wireless signals. Whether the first wireless communication device moved during the time period is detected. In response to detecting that the first wireless communication device moved relative to the second wireless communication device during the time period, motion sensing parameters of a motion sensing system are updated. The channel state information is processed according to the updated motion sensing parameters to detect motion of an object—other than the first wireless communication device—in the space during the time period.
In a general aspect, a mobile wireless communication device is operated for motion sensing. In some aspects, wireless signals transmitted from a second wireless communication device through a space during a time period are received at a first wireless communication device. By operation of the first wireless communication device, channel state information is generated based on the wireless signals. Whether the first wireless communication device moved during the time period is detected. In response to detecting that the first wireless communication device moved relative to the second wireless communication device during the time period, motion sensing parameters of a motion sensing system are updated. The channel state information is processed according to the updated motion sensing parameters to detect motion of an object—other than the first wireless communication device—in the space during the time period.
A method includes obtaining a set of motion indicator values associated with a time frame. The set of motion indicator values indicating motion detected from wireless links in a wireless communication network during the time frame. The method also includes generating a probability vector comprising values for the connected wireless communication devices and generating spatial coordinates for respective wireless communication devices. The spatial coordinates for each wireless communication device representing a location of the wireless communication device in space. The method also includes modifying the probability vector based on the spatial coordinates of each wireless communication device to generate a modified probability vector representing a probability of motion at the connected wireless communication device during the time frame. The method also includes using the modified probability vector to localize motion relative to the wireless communication device during the time frame.
Systems and methods for Wi-Fi sensing by networking devices are provided. A sensing transmitter is configured to obtain timing information from an unassociated access point The sending transmitter is further configured to generate local timing information, according to the timing information and to receive a transmission request from the unassociated access point, the transmission request including a timing information update. The timing information update is used to update the local timing information. A transmission response including a timestamp based on updated local timing information is sent responsive to a transmission request.
G01D 5/48 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using wave or particle radiation means
66.
SYSTEMS AND METHODS FOR TIME STAMPING OF WI-FI SENSING DATA
Systems and methods for time stamping of Wi-Fi sensing data are provided. A system may include a sensing device. The sensing device may be configured to transmit a sensing trigger message to a remote device. The sensing device may also be configured to receive a sensing transmission from the remote devices transmitted in response to the sensing trigger message. The sensing device may further be configured to identify a timing indication in the sensing transmission and generate a time stamp indicating when the sensing transmission was valid from the timing indication. The sensing device may associate the time stamp with the sensing transmission.
G01S 7/00 - Details of systems according to groups , ,
G01S 13/00 - Systems using the reflection or reradiation of radio waves, e.g. radar systemsAnalogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
G01S 13/56 - Discriminating between fixed and moving objects or between objects moving at different speeds for presence detection
67.
SYSTEMS AND METHODS FOR TIME SYNCHRONIZATION OF SENSING MEASUREMENTS MADE OUT OF BSS
Systems and methods for Wi-Fi sensing is provided. A networking device configured to operate as a sensing receiver and including at least one processor may operate as a system to carry out the Wi-Fi sensing method. The sensing receiver may obtain timing information from an unassociated access point not associated with the sensing receiver and operating as a sensing transmitter. The sensing receiver may generate local timing information according to the timing information. The sensing receiver may receive a sensing transmission from the unassociated access point. The sensing receiver may perform a sensing measurement on the sensing transmission and may associated the sensing measurement with a timestamp based on the local timing information. The sensing receiver may transmit the sensing measurement and the timestamp to the unassociated access point.
G01D 5/48 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using wave or particle radiation means
H04W 4/38 - Services specially adapted for particular environments, situations or purposes for collecting sensor information
68.
SYSTEMS AND METHODS FOR UL-OFDMA WI-FI SENSING USING RANGING
A method is described for Wi-Fi sensing. The method is carried out by a networking device configured to operate as a sensing initiator and includes at least one processor configured to execute instructions. Initially, a multiway sensing trigger message is transmitted via a transmitting antenna of the networking device. A plurality of sensing transmissions from a plurality of sensing responders responsive to the multiway sensing trigger message is simultaneously received by the networking device via a receiving antenna. A sensing measurement is performed on at least one of the plurality of sensing transmissions.
G01D 5/48 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using wave or particle radiation means
H04W 4/30 - Services specially adapted for particular environments, situations or purposes
69.
Systems and methods for time domain channel representation information for Wi-Fi sensing
Systems and methods for time domain channel representation information for Wi-Fi sensing. Wi-Fi sensing systems include sensing devices and remote devices configured to communicate through radio-frequency signals. Initially, a sensing device receives a channel representation information configuration representative of channel state information in time domain. The sensing device then receives a sensing transmission and generates a sensing measurement based on the sensing transmission. Thereafter, the sensing device generates a time domain representation of the sensing measurement and selects one or more time domain pulses indicative of the time domain representation based on the channel representation information configuration. The sensing device communicates the one or more time domain pulses to a sensing algorithm manager for use in determining motion or movement.
H04W 48/16 - DiscoveringProcessing access restriction or access information
G01S 5/02 - Position-fixing by co-ordinating two or more direction or position-line determinationsPosition-fixing by co-ordinating two or more distance determinations using radio waves
H04W 4/38 - Services specially adapted for particular environments, situations or purposes for collecting sensor information
H04W 4/33 - Services specially adapted for particular environments, situations or purposes for indoor environments, e.g. buildings
Systems and methods for Wi-Fi sensing are provided. Wi-Fi sensing systems include sensing devices and remote devices configured to communicate through radio-frequency signals. Sensing devices and remote devices are configured to communicate with one another to establish sensing transmission configurations through established protocols. Sensing devices described herein are configured to provide Wi-Fi sensing measurements based on the reception of messages transmitted from remote devices according to established configurations.
A method is described for Wi-Fi sensing. The method is carried out by a networked device operating as a sensing receiver. The networked device includes at least one processor configured to execute instructions. Initially, a series of time domain pulse sets determined from a series of sensing measurements based on a series of sensing transmissions transmitted by a sensing transmitter and received by the networked device over a time interval is obtained. Thereafter, a signature pulse occurring in the time domain pulse sets is identified. A series of amplitudes of the signature pulse in the time domain pulse sets are recorded. Further, a waveform frequency signature of a small motion occurring in a sensing space corresponding with the networked device is identified based on the series of amplitudes of the signature pulse.
A method is described for Wi-Fi sensing. The method is carried out by a networking device configured to operate as a station (STA) and includes at least one processor configured to execute instructions. The STA is associated with an original access point (AP) of an original basic service set (BSS) to establish an original association between the STA and the original AP. The STA and the original AP have an original communication link and an original sensing link established therebetween, the original communication link being established for data transmissions and the original sensing link being established for sensing transmissions. A transition management request identifying a preferred communication link between the STA and a preferred AP of a preferred BSS different than the original communication link with the original AP is received. Further, transmission of a transition preference indicating a preference to preserve the original sensing link is caused.
A method is described for Wi-Fi sensing. The methos is carried out by a Wi-Fi system including a plurality of networked devices, the plurality of networked devices being configured to implement an algorithm agent, an initiator agent, and a responder agent. Initially, a sensing initiator query is provided by the algorithm agent to the Wi-Fi system. A sensing initiator response in response to the sensing initiator query is provided by the initiator agent. Thereafter, a sensing responder presence query is provided by the initiator agent to the Wi-Fi system. A sensing responder presence response in response to the sensing responder presence query is provided by the responder agent. Then, a sensing responder capability query is provided by the initiator agent to the responder agent. A sensing responder capability response in response to the sensing responder capability query is provided by the responder agent.
H04L 61/4511 - Network directoriesName-to-address mapping using standardised directoriesNetwork directoriesName-to-address mapping using standardised directory access protocols using domain name system [DNS]
74.
CROSS-CORRELATION OF TIME DOMAIN SIGNALS DUE TO MOTION PROXIMITY
A method for Wi-Fi sensing carried out by networked device is described. Initially, first set of time domain pulses is obtained from first channel representation information determined from first sensing measurement based on first sensing transmission transmitted by sensing transmitter and received by sensing receiver. A first amplitude attenuation is detected between first selected time domain pulse of first set of time domain pulses and first corresponding time domain pulse. Further, second set of time domain pulses is obtained from second channel representation information determined from second sensing measurement based on second sensing transmission transmitted by sensing transmitter and received by sensing receiver. A second amplitude attenuation is detected between second selected time domain pulse of second set of time domain pulses and second corresponding time domain pulse. A time lag is determined between first amplitude attenuation and second amplitude attenuation, and near-far indicator is determined based on time lag.
Systems and methods for dynamic channel representations are described. Initially a sensing receiver receives a sensing transmission. The sensing receiver then generates a sensing measurement based on the sensing transmission. Thereafter, the sensing receiver generates a channel representation information of a propagation channel between the sensing receiver and a sensing transmitter based on the sensing measurement. The sensing receiver then obtains a sensing imprint representing a steady-state propagation channel between the sensing receiver and the sensing transmitter. Further, the sensing receiver compares the channel representation information to the sensing imprint and identifies a difference between the channel representation information and the sensing imprint. The sensing receiver may further send the channel representation information to a sensing algorithm manager.
G01S 7/00 - Details of systems according to groups , ,
G01S 13/00 - Systems using the reflection or reradiation of radio waves, e.g. radar systemsAnalogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
Systems and methods for Wi-Fi sensing using UL-OFDMA are provided. Wi-Fi sensing systems include sensing devices and sensing transmitters configured to communicate through radio-frequency signals. Initially, first channel resources are allocated to first expected transmissions from the sensing transmitters and first sensing trigger message to trigger first series of sensing transmissions from the sensing transmitters is transmitted. Further, a first series of sensing transmissions is received, and the first series of sensing measurements are generated. Thereafter, identification of feature of interest is obtained and a selection of sensing transmitters is determined. Second channel resources are allocated to second expected transmissions from the selection of sensing transmitters. A second sensing trigger message to trigger a second series of sensing transmissions from the selection of the sensing transmitters is provided. A series of sensing transmissions is received, and a second series of sensing measurements is generated based on the second series of sensing transmissions.
G01S 13/00 - Systems using the reflection or reradiation of radio waves, e.g. radar systemsAnalogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
G01S 7/00 - Details of systems according to groups , ,
G01S 7/41 - Details of systems according to groups , , of systems according to group using analysis of echo signal for target characterisationTarget signatureTarget cross-section
G01S 13/56 - Discriminating between fixed and moving objects or between objects moving at different speeds for presence detection
Systems and methods for Wi-Fi sensing are provided. A method for Wi-Fi sensing carried out by a sensing device including a processor is described. Initially, a sensing goal is received. Upon receiving the sensing goal, at least one sensing transmitter and at least one sensing receiver are selected according to the sensing goal. Thereafter, an allocation of channel resources reserved for defined transmissions from the at least one sensing transmitter to the at least one sensing receiver is determined according to the sensing goal. The defined transmissions are caused from the at least one sensing transmitter to the at least one sensing receiver according to the allocation of channel resources.
Systems and methods for Wi-Fi sensing are provided. A method for Wi-Fi sensing carried out by a sensing device including a processor is described. Initially, first channel state information (CSI) of a first transmission channel representing a first sensing measurement performed on a first sensing transmission transmitted from a sensing transmitter to a sensing receiver in the first transmission channel may be received. A time-domain channel representation (TD-CRI) of the first CSI may be calculated by transforming the first CSI into the time domain. Then, a plurality of estimated channel responses corresponding to a plurality of transmission channels may be generated according to the TD-CRI. One or more preferred transmission channels from among the plurality of transmission channels may be determined according to the plurality of estimated channel responses.
Systems and methods for Wi-Fi sensing are provided. A method for Wi-Fi sensing carried out by a sensing decision unit in operation on at least one processor configured to execute instructions. Measured channel state information (M-CSI) representing a sensing measurement and receiver front end state information (RFE-SI) are received. According to the RFE-SI, sensing decision input information is determined.
A method includes receiving, at a cloud-based computer system, motion data from a remote motion detection system configured to detect motion in a space. The motion data is derived from wireless signals communicated through the space by the wireless communication devices. A motion classifier is applied to the motion data by the cloud-based computer system to detect an occurrence of a first predefined motion event in the space. A subset of the third party entities that have registered for notifications associated with the first predefined motion event is identified based on reference to a database. Notifications are generated addressed to the subset of the third party entities. Each notification includes an indication that the first predefined motion event was detected and additional information describing the occurrence of the first predefined motion event. The notifications are then sent to the subset of the third party entities.
A method includes obtaining motion data at a wireless communication device in a motion detection system. The motion data is derived from wireless signals communicated through the space by the wireless communication devices. Over a training period, the motion data is provided to a cloud-based computer system. A motion pattern detection function is received from the cloud based computer system. The motion pattern detection function corresponding to a motion event that occurred in the space during the training period. after the training period, additional motion data is obtained at the wireless communication device. The motion pattern detection function is applied to the additional motion data to detect an occurrence of the motion event in the space. A message that includes an indication of that the motion event was detected is sent from the wireless communication device to the cloud-based computer system.
A method includes receiving, at a cloud-based computer system, motion data from a remote motion detection system configured to detect motion in a space. The motion data is derived from wireless signals communicated through the space by the wireless communication devices. A motion classifier is applied to the motion data by the cloud-based computer system to detect an occurrence of a first predefined motion event in the space. A subset of the third party entities that have registered for notifications associated with the first predefined motion event is identified based on reference to a database. Notifications are generated addressed to the subset of the third party entities. Each notification includes an indication that the first predefined motion event was detected and additional information describing the occurrence of the first predefined motion event. The notifications are then sent to the subset of the third party entities.
A method includes obtaining motion data at a wireless communication device in a motion detection system. The motion data is derived from wireless signals communicated through the space by the wireless communication devices. Over a training period, the motion data is provided to a cloud-based computer system. A motion pattern detection function is received from the cloud based computer system. The motion pattern detection function corresponding to a motion event that occurred in the space during the training period. after the training period, additional motion data is obtained at the wireless communication device. The motion pattern detection function is applied to the additional motion data to detect an occurrence of the motion event in the space. A message that includes an indication of that the motion event was detected is sent from the wireless communication device to the cloud-based computer system.
Methods and systems for Wi-Fi sensing carried out by a sensing agent coupled to a transmitting antenna, a receiving antenna, and at least one processor are provided. A sensing agent determines a time window. The sensing agent receives channel state information (CSI) in a frequency domain; generated, by the at least one processor, based on a plurality of sensing transmissions received, via the receiving antenna, from a sensing transmitter in the time window, each of the plurality of sensing transmissions having corresponding CSI. The sensing agent identifies selected CSI from among the corresponding CSI. The sensing agent combines the selected CSI to generate assembled channel state information (A-CSI). The sensing agent sends information representative of the A-CSI to a sensing algorithm manager.
G01D 5/00 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable
G01S 11/00 - Systems for determining distance or velocity not using reflection or reradiation
H04B 17/309 - Measuring or estimating channel quality parameters
85.
ISOLATION OF ELECTRONIC ENVIRONMENT FOR IMPROVED CHANNEL ESTIMATION
Systems and methods for Wi-Fi sensing are provided. A method for Wi-Fi sensing carried out by a sensing decision unit in operation on at least one processor configured to execute instructions. Measured channel state information (M-CSI) representing a sensing measurement and receiver front end state information (RFE-SI) are received. According to the RFE-SI, sensing decision input information is determined.
G01D 5/00 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable
G01S 11/00 - Systems for determining distance or velocity not using reflection or reradiation
86.
METHODS AND SYSTEMS FOR TIME SPREAD ASSEMBLED CSI FOR WIDEBAND CHANNELS
Methods and systems for Wi-Fi sensing carried out by a sensing agent coupled to a transmitting antenna, a receiving antenna, and at least one processor are provided. A sensing agent determines a time window. The sensing agent receives channel state information (CSI) in a frequency domain; generated, by the at least one processor, based on a plurality of sensing transmissions received, via the receiving antenna, from a sensing transmitter in the time window, each of the plurality of sensing transmissions having corresponding CSI. The sensing agent identifies selected CSI from among the corresponding CSI. The sensing agent combines the selected CSI to generate assembled channel state information (A-CSI). The sensing agent sends information representative of the A-CSI to a sensing algorithm manager.
G01D 5/00 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable
H04B 17/309 - Measuring or estimating channel quality parameters
G01S 11/00 - Systems for determining distance or velocity not using reflection or reradiation
87.
ISOLATION OF ELECTRONIC ENVIRONMENT FOR IMPROVED CHANNEL ESTIMATION
Systems and methods for Wi-Fi sensing are provided. A method for Wi-Fi sensing carried out by a sensing decision unit in operation on at least one processor configured to execute instructions. Measured channel state information (M-CSI) representing a sensing measurement and receiver front end state information (RFE-SI) are received. According to the RFE-SI, sensing decision input information is determined.
G01D 5/00 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable
G01S 11/00 - Systems for determining distance or velocity not using reflection or reradiation
In a general aspect, a motion detection system detects gestures (e.g., human gestures) and initiates actions in response to the detected gestures. In some aspects, channel information is obtained based on wireless signals transmitted through a space by one or more wireless communication devices. A gesture recognition engine analyzes the channel information to detect a gesture (e.g., a predetermined gesture sequence) in the space. An action to be initiated in response to the detected gesture is identified. An instruction to perform the action is sent to a network-connected device associated with the space.
G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer
G01S 7/00 - Details of systems according to groups , ,
G01S 13/00 - Systems using the reflection or reradiation of radio waves, e.g. radar systemsAnalogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
G01S 13/87 - Combinations of radar systems, e.g. primary radar and secondary radar
89.
IDENTIFYING DEVICES WITHIN TRANSMISSIONS WITHIN A SENSING NETWORK
Systems and methods for Wi-Fi sensing are provided. A method for Wi-Fi sensing carried out by a sensing algorithm manager including at least one processor configured to execute instructions. A sensing measurement based on a sensing transmission transmitted by a sensing transmitter and received by a sensing receiver is obtained. Then, a device context of a sensing pair associated with the sensing transmission is determined. The sensing pair includes the sensing transmitter and the sensing receiver. The sensing measurement is associated with the device context. A sensing algorithm is executed according to the sensing measurement and the device context to generate a sensing result.
G01D 5/48 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using wave or particle radiation means
G01S 11/00 - Systems for determining distance or velocity not using reflection or reradiation
Systems and methods for Wi-Fi sensing are provided for determining time domain channel representation information. A method for Wi-Fi sensing carried out by a sensing receiver including a transmitting antenna, a receiving antenna, and a processor is described. Initially, a sensing transmission is received. A sensing measurement is generated based on the sensing transmission. In an example, a full time-domain channel representation (TD-CRI) of a propagation channel between the sensing receiver and a sensing transmitter is generated based on the sensing measurement. Thereafter, in an example, principal impulses of the full TD-CRI are identified. The principal impulses represent a subset of time domain pulses of the full TD-CRI. Then, a filtered TD-CRI is identified according to the principal impulses. The filtered TD-CRI is sent to a sensing algorithm manager.
G01S 11/02 - Systems for determining distance or velocity not using reflection or reradiation using radio waves
G01D 5/48 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using wave or particle radiation means
91.
METHODS AND SYSTEMS FOR COMPRESSED CSI FOR VIRTUAL WIDEBAND CHANNELS
Systems and methods for Wi-Fi sensing are provided. A method for Wi-Fi sensing carried out by a sensing receiver including a transmitting antenna, a receiving antenna, and a processor is described. Initially, sensing transmissions from a plurality of sensing transmitters are received. Then, a sensing measurement representing a channel state information (CSI) is generated based on the sensing transmissions. Thereafter, component frequency bands associated with a virtual wideband sensing transmission from a selected sensing transmitter of the plurality of sensing transmitters are identified. A reduced channel representation information (CRI) including the component frequency bands associated with the selected sensing transmitter is generated and component frequency bands associated with a remainder of the plurality of sensing transmitters are omitted. The reduced CRI is sent to a sensing algorithm manager.
G01D 5/48 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using wave or particle radiation means
92.
IDENTIFYING DEVICES WITHIN TRANSMISSIONS WITHIN A SENSING NETWORK
Systems and methods for Wi-Fi sensing are provided. A method for Wi-Fi sensing carried out by a sensing algorithm manager including at least one processor configured to execute instructions. A sensing measurement based on a sensing transmission transmitted by a sensing transmitter and received by a sensing receiver is obtained. Then, a device context of a sensing pair associated with the sensing transmission is determined. The sensing pair includes the sensing transmitter and the sensing receiver. The sensing measurement is associated with the device context. A sensing algorithm is executed according to the sensing measurement and the device context to generate a sensing result.
G01D 5/48 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using wave or particle radiation means
G01S 11/00 - Systems for determining distance or velocity not using reflection or reradiation
Systems and methods for Wi-Fi sensing are provided for determining time domain channel representation information. A method for Wi-Fi sensing carried out by a sensing receiver including a transmitting antenna, a receiving antenna, and a processor is described. Initially, a sensing transmission is received. A sensing measurement is generated based on the sensing transmission. In an example, a full time-domain channel representation (TD-CRI) of a propagation channel between the sensing receiver and a sensing transmitter is generated based on the sensing measurement. Thereafter, in an example, principal impulses of the full TD-CRI are identified. The principal impulses represent a subset of time domain pulses of the full TD-CRI. Then, a filtered TD-CRI is identified according to the principal impulses. The filtered TD-CRI is sent to a sensing algorithm manager.
G01D 5/48 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using wave or particle radiation means
G01S 11/02 - Systems for determining distance or velocity not using reflection or reradiation using radio waves
94.
METHODS AND SYSTEMS FOR COMPRESSED CSI FOR VIRTUAL WIDEBAND CHANNELS
Systems and methods for Wi-Fi sensing are provided. A method for Wi-Fi sensing carried out by a sensing receiver including a transmitting antenna, a receiving antenna, and a processor is described. Initially, sensing transmissions from a plurality of sensing transmitters are received. Then, a sensing measurement representing a channel state information (CSI) is generated based on the sensing transmissions. Thereafter, component frequency bands associated with a virtual wideband sensing transmission from a selected sensing transmitter of the plurality of sensing transmitters are identified. A reduced channel representation information (CRI) including the component frequency bands associated with the selected sensing transmitter is generated and component frequency bands associated with a remainder of the plurality of sensing transmitters are omitted. The reduced CRI is sent to a sensing algorithm manager.
G01D 5/48 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using wave or particle radiation means
95.
Determining Spatial Maps Based on User Input and Motion-Sensing Data Derived from Wireless Signals
In a general aspect, motion-sensing data are generated based on wireless signals transmitted between respective pairs of wireless communication devices in a wireless communication network. Spatial coordinates are generated for the respective wireless communication devices, and user input is received in response to a graphical representation of a spatial arrangement of the wireless communication devices. The user input indicates a selected group of the wireless communication devices that share a common characteristic. Motion zones in a motion detection system associated with the space are defined. Each of the motion zones represents a distinct region in the space, and the motion zones include a first motion zone representing a region that includes the selected group of the wireless communication devices.
In a general aspect, motion-sensing data are generated based on wireless signals transmitted between respective pairs of wireless communication devices in a wireless communication network. Spatial coordinates are generated for the respective wireless communication devices, and user input is received in response to a graphical representation of a spatial arrangement of the wireless communication devices. The user input indicates a selected group of the wireless communication devices that share a common characteristic. Motion zones in a motion detection system associated with the space are defined. Each of the motion zones represents a distinct region in the space, and the motion zones include a first motion zone representing a region that includes the selected group of the wireless communication devices.
G01S 11/00 - Systems for determining distance or velocity not using reflection or reradiation
G01S 5/00 - Position-fixing by co-ordinating two or more direction or position-line determinationsPosition-fixing by co-ordinating two or more distance determinations
97.
DETERMINING SPATIAL MAPS BASED ON USER INPUT AND MOTION-SENSING DATA DERIVED FROM WIRELESS SIGNALS
In a general aspect, motion-sensing data are generated based on wireless signals transmitted between respective pairs of wireless communication devices in a wireless communication network. Spatial coordinates are generated for the respective wireless communication devices, and user input is received in response to a graphical representation of a spatial arrangement of the wireless communication devices. The user input indicates a selected group of the wireless communication devices that share a common characteristic. Motion zones in a motion detection system associated with the space are defined. Each of the motion zones represents a distinct region in the space, and the motion zones include a first motion zone representing a region that includes the selected group of the wireless communication devices.
G01S 5/00 - Position-fixing by co-ordinating two or more direction or position-line determinationsPosition-fixing by co-ordinating two or more distance determinations
G01S 11/00 - Systems for determining distance or velocity not using reflection or reradiation
98.
SYSTEMS AND METHODS FOR OFDMA MULTI-USER CASCADING SEQUENCE OPTIMIZATION FOR WI-FI SENSING
Systems and methods for Wi-Fi sensing are provided. A method for Wi-Fi sensing carried out by sensing receiver including a transmitting antenna, a receiving antenna, and a processor is described. Initially, a compound sensing trigger message is generated. The compound sensing trigger message is then transmitted to a sensing transmitter. A sensing response announcement transmitted by the sensing transmitter is received. Also, a sensing response null data PPDU (NDP); is received. A sensing measurement is generated based on the sensing response NDP.
G01D 5/48 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using wave or particle radiation means
99.
SYSTEMS AND METHODS FOR OFDMA MULTI-USER CASCADING SEQUENCE OPTIMIZATION FOR WI-FI SENSING
Systems and methods for Wi-Fi sensing are provided. A method for Wi-Fi sensing carried out by sensing receiver including a transmitting antenna, a receiving antenna, and a processor is described. Initially, a compound sensing trigger message is generated. The compound sensing trigger message is then transmitted to a sensing transmitter. A sensing response announcement transmitted by the sensing transmitter is received. Also, a sensing response null data PPDU (NDP); is received. A sensing measurement is generated based on the sensing response NDP.
G01D 5/48 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using wave or particle radiation means
100.
SYSTEMS AND METHODS FOR COMBINED DATA AND SENSING IN ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS (OFDMA)
Systems and methods for Wi-Fi sensing are provided. A method for Wi-Fi sensing carried out by a sensing receiver is described. A hybrid sensing-data trigger is created. The hybrid sensing-data trigger includes resource allocation fields corresponding to each of first sensing channel resource allocation to first sensing transmitter, second sensing channel resource allocation to second sensing transmitter, first data channel resource allocation to first station, and second data channel resource allocation to second station. The hybrid sensing-data trigger is transmitted to first sensing transmitter, second sensing transmitter, first station, and second station. Subsequently, first sensing transmission is received from first sensing transmitter, second sensing transmission is received from second sensing transmitter, first data transmission is received from first station, and second data transmission is received from second station. A first sensing measurement is generated based on first sensing transmission and second sensing measurement is generated based on second sensing transmission.
G01D 5/48 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using wave or particle radiation means
