Abstract

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.

IPC Classes  ?

• H04W 48/16 - DiscoveringProcessing access restriction or access information
• H04L 25/02 - Baseband systems Details
• H04W 84/12 - WLAN [Wireless Local Area Networks]

Abstract

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.

IPC Classes  ?

• H04W 4/029 - Location-based management or tracking services
• G01S 7/00 - Details of systems according to groups , ,
• G01S 13/86 - Combinations of radar systems with non-radar systems, e.g. sonar, direction finder
• H04W 56/00 - Synchronisation arrangements
• H04W 84/12 - WLAN [Wireless Local Area Networks]

Abstract

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.

IPC Classes  ?

• 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
• G01S 13/62 - Sense-of-movement determination

Abstract

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.

IPC Classes  ?

• H04W 64/00 - Locating users or terminals for network management purposes, e.g. mobility management
• H04W 28/20 - Negotiating bandwidth
• H04W 72/0453 - Resources in frequency domain, e.g. a carrier in FDMA

Abstract

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.

IPC Classes  ?

• H04W 74/0808 - Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
• H04W 24/10 - Scheduling measurement reports
• H04W 60/04 - Affiliation to network, e.g. registrationTerminating affiliation with the network, e.g. de-registration using triggered events
• H04W 76/10 - Connection setup

Abstract

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.

IPC Classes  ?

• 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

Abstract

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.

IPC Classes  ?

• 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

Abstract

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.

IPC Classes  ?

• 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

Abstract

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.

IPC Classes  ?

• 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

Abstract

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.

IPC Classes  ?

• H04L 5/00 - Arrangements affording multiple use of the transmission path
• H04W 72/0446 - Resources in time domain, e.g. slots or frames

Abstract

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.

IPC Classes  ?

• G01P 13/00 - Indicating or recording presence or absence of movementIndicating or recording of direction of movement
• G01S 11/00 - Systems for determining distance or velocity not using reflection or reradiation

Abstract

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.

IPC Classes  ?

• H04W 74/0808 - Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
• H04W 72/04 - Wireless resource allocation

Abstract

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.

IPC Classes  ?

• H04W 24/08 - Testing using real traffic
• 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
• H04W 84/12 - WLAN [Wireless Local Area Networks]

Abstract

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.

IPC Classes  ?

• 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
• H04W 84/12 - WLAN [Wireless Local Area Networks]

Abstract

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.

IPC Classes  ?

• H04W 72/542 - Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality

Abstract

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.

IPC Classes  ?

• G01S 13/62 - Sense-of-movement determination

Abstract

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.

IPC Classes  ?

• H04W 64/00 - Locating users or terminals for network management purposes, e.g. mobility management
• H04L 5/00 - Arrangements affording multiple use of the transmission path
• H04W 84/12 - WLAN [Wireless Local Area Networks]

Abstract

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.

IPC Classes  ?

• H04W 12/65 - Environment-dependent, e.g. using captured environmental data
• G01S 13/48 - Indirect determination of position data using multiple beams at emission or reception
• G01S 13/87 - Combinations of radar systems, e.g. primary radar and secondary radar
• H04W 12/71 - Hardware identity
• H04W 12/79 - Radio fingerprint

Abstract

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.

IPC Classes  ?

• 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
• H04L 1/1607 - Details of the supervisory signal
• H04L 27/26 - Systems using multi-frequency codes

Abstract

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.

IPC Classes  ?

• H04L 25/02 - Baseband systems Details
• 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

Abstract

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.

IPC Classes  ?

• 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
• H04W 84/12 - WLAN [Wireless Local Area Networks]

Abstract

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.

IPC Classes  ?

• G01S 13/62 - Sense-of-movement determination
• H04W 4/38 - Services specially adapted for particular environments, situations or purposes for collecting sensor information
• H04W 84/12 - WLAN [Wireless Local Area Networks]
• H04W 84/18 - Self-organising networks, e.g. ad hoc networks or sensor networks

Abstract

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.

IPC Classes  ?

• 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

Abstract

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.

IPC Classes  ?

• 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

Abstract

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.

IPC Classes  ?

• G06N 7/01 - Probabilistic graphical models, e.g. probabilistic networks
• G06F 17/16 - Matrix or vector computation
• H04W 4/02 - Services making use of location information
• H04W 84/18 - Self-organising networks, e.g. ad hoc networks or sensor networks

Abstract

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.

IPC Classes  ?

• H04W 64/00 - Locating users or terminals for network management purposes, e.g. mobility management
• H04W 84/12 - WLAN [Wireless Local Area Networks]

Abstract

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.

IPC Classes  ?

• G01S 11/00 - Systems for determining distance or velocity not using reflection or reradiation

Abstract

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.

IPC Classes  ?

• H04W 24/08 - Testing using real traffic
• H04W 4/38 - Services specially adapted for particular environments, situations or purposes for collecting sensor information

Abstract

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.

IPC Classes  ?

• 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 74/06 - Scheduled access using polling
• H04W 84/12 - WLAN [Wireless Local Area Networks]
• H04W 92/16 - Interfaces between hierarchically similar devices

Abstract

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.

IPC Classes  ?

• H04W 24/10 - Scheduling measurement reports
• H04W 8/24 - Transfer of terminal data

Abstract

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.

IPC Classes  ?

• H04W 84/18 - Self-organising networks, e.g. ad hoc networks or sensor networks

Abstract

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.

IPC Classes  ?

• H04W 24/02 - Arrangements for optimising operational condition
• H04L 41/12 - Discovery or management of network topologies

Abstract

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.

IPC Classes  ?

• G01S 13/62 - Sense-of-movement determination
• H04W 84/18 - Self-organising networks, e.g. ad hoc networks or sensor networks
• H04W 4/38 - Services specially adapted for particular environments, situations or purposes for collecting sensor information
• H04W 84/12 - WLAN [Wireless Local Area Networks]

Abstract

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.

IPC Classes  ?

• G01S 11/00 - Systems for determining distance or velocity not using reflection or reradiation

Abstract

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.

IPC Classes  ?

• G01R 29/26 - Measuring noise figureMeasuring signal-to-noise ratio
• H04W 4/38 - Services specially adapted for particular environments, situations or purposes for collecting sensor information

Abstract

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.

IPC Classes  ?

• 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

Abstract

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.

IPC Classes  ?

• 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

Abstract

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.

IPC Classes  ?

• 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

Abstract

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.

IPC Classes  ?

• A61B 5/00 - Measuring for diagnostic purposes Identification of persons
• G06F 3/04847 - Interaction techniques to control parameter settings, e.g. interaction with sliders or dials
• G06F 3/14 - Digital output to display device
• H04W 4/38 - Services specially adapted for particular environments, situations or purposes for collecting sensor information
• A61B 5/11 - Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb

Abstract

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.

IPC Classes  ?

• H04W 48/16 - DiscoveringProcessing access restriction or access information
• H04L 25/02 - Baseband systems Details
• H04W 84/12 - WLAN [Wireless Local Area Networks]

Abstract

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.

IPC Classes  ?

• G01S 11/02 - Systems for determining distance or velocity not using reflection or reradiation using radio waves

Abstract

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.

IPC Classes  ?

• H04B 17/30 - MonitoringTesting of propagation channels
• H04W 28/08 - Load balancing or load distribution
• H04W 72/54 - Allocation or scheduling criteria for wireless resources based on quality criteria

Abstract

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.

IPC Classes  ?

• H04W 4/38 - Services specially adapted for particular environments, situations or purposes for collecting sensor information
• H04W 8/08 - Mobility data transfer

Abstract

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.

IPC Classes  ?

• G01S 11/00 - Systems for determining distance or velocity not using reflection or reradiation

Abstract

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.

IPC Classes  ?

• G01S 11/00 - Systems for determining distance or velocity not using reflection or reradiation

Abstract

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.

IPC Classes  ?

• H04W 56/00 - Synchronisation arrangements
• 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

Abstract

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.

IPC Classes  ?

• 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

Abstract

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.

IPC Classes  ?

• 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

Abstract

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.

IPC Classes  ?

• 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

Abstract

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.

IPC Classes  ?

• 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

Abstract

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.

IPC Classes  ?

• H04W 8/24 - Transfer of terminal data
• H04W 24/10 - Scheduling measurement reports
• H04W 84/12 - WLAN [Wireless Local Area Networks]

Abstract

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.

IPC Classes  ?

• G01S 11/00 - Systems for determining distance or velocity not using reflection or reradiation

Abstract

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.

IPC Classes  ?

• H04W 72/21 - Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network

Abstract

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.

IPC Classes  ?

• H04W 8/00 - Network data management
• 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]

Abstract

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.

IPC Classes  ?

• G01S 11/00 - Systems for determining distance or velocity not using reflection or reradiation
• G01S 13/48 - Indirect determination of position data using multiple beams at emission or reception

Abstract

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.

IPC Classes  ?

• H04W 24/08 - Testing using real traffic
• 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
• H04W 84/12 - WLAN [Wireless Local Area Networks]

Abstract

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.

IPC Classes  ?

• G01S 13/04 - Systems determining presence of a target
• G01S 13/87 - Combinations of radar systems, e.g. primary radar and secondary radar
• H04W 74/06 - Scheduled access using polling
• 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
• H04W 84/12 - WLAN [Wireless Local Area Networks]
• H04W 92/16 - Interfaces between hierarchically similar devices

Abstract

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.

IPC Classes  ?

• G01S 11/02 - Systems for determining distance or velocity not using reflection or reradiation using radio waves
• G08B 13/24 - Electrical actuation by interference with electromagnetic field distribution
• H04W 60/00 - Affiliation to network, e.g. registrationTerminating affiliation with the network, e.g. de-registration

Abstract

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.

IPC Classes  ?

• H04N 17/309 -

Abstract

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.

IPC Classes  ?

• H04W 48/16 - DiscoveringProcessing access restriction or access information
• H04L 25/02 - Baseband systems Details
• H04W 84/12 - WLAN [Wireless Local Area Networks]

Abstract

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.

IPC Classes  ?

• H04W 4/029 - Location-based management or tracking services
• H04L 67/50 - Network services
• H04L 67/53 - Network services using third party service providers
• H04W 84/12 - WLAN [Wireless Local Area Networks]

Abstract

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.

IPC Classes  ?

• H04W 4/029 - Location-based management or tracking services

Abstract

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.

IPC Classes  ?

• G01S 11/00 - Systems for determining distance or velocity not using reflection or reradiation

Abstract

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.

IPC Classes  ?

• G01S 11/00 - Systems for determining distance or velocity not using reflection or reradiation

Abstract

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.

IPC Classes  ?

• 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

Abstract

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.

IPC Classes  ?

• 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

Abstract

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.

IPC Classes  ?

• 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

Abstract

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.

IPC Classes  ?

• 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

Abstract

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.

IPC Classes  ?

• 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

Abstract

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.

IPC Classes  ?

• 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
• H04W 12/79 - Radio fingerprint

Abstract

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.

IPC Classes  ?

• 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

Abstract

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.

IPC Classes  ?

• 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

Abstract

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.

IPC Classes  ?

• 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
• H04W 12/79 - Radio fingerprint

Abstract

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.

IPC Classes  ?

• 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

Abstract

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.

IPC Classes  ?

• 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

Abstract

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.

IPC Classes  ?

• G08B 13/24 - Electrical actuation by interference with electromagnetic field distribution
• G01S 5/10 - Position of receiver fixed by co-ordinating a plurality of position lines defined by path-difference measurements

Abstract

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.

IPC Classes  ?

• 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

Abstract

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.

IPC Classes  ?

• 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

Abstract

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.

IPC Classes  ?

• 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

Abstract

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.

IPC Classes  ?

• 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

Abstract

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.

IPC Classes  ?

• 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

Abstract

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.

IPC Classes  ?

• 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

Abstract

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.

IPC Classes  ?

• 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

Abstract

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.

IPC Classes  ?

• 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

Abstract

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.

IPC Classes  ?

• 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

Abstract

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.

IPC Classes  ?

• 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

Abstract

A method includes receiving a ground-truth motion indication from a measurement device. The ground-truth motion indication is a time series of locations and a corresponding indication of a motion state at each location of the time series of locations. The method also includes receiving a time series of detected motion states based on wireless signals communicated through a space over a time period by a wireless communication network comprising a plurality of wireless communication devices. The detected motion states for a time interval within the time series are compared to the ground-truth motion indication for the time interval within the time series to generate a time series of consistency scores. The consistency scores are processed to produce an aggregate motion-detection capability score at each location. The method also includes providing, for display as a graphical representation of motion-detection capability within the space, the aggregate motion-detection capability at each location.

IPC Classes  ?

• H04W 64/00 - Locating users or terminals for network management purposes, e.g. mobility management
• H04W 4/02 - Services making use of location information
• H04W 4/029 - Location-based management or tracking services

Abstract

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.

IPC Classes  ?

• G01S 11/02 - Systems for determining distance or velocity not using reflection or reradiation using radio waves

Abstract

In a general aspect, a rate at which MIMO transmissions are elicited from wireless communication devices is varied. A first wireless communication device may be configured to wirelessly transmit a first set of messages at a first transmission rate to a second wireless communication device. The first wireless communication device may further be configured to receive MIMO transmissions from the second wireless communication device. The first wireless communication device may additionally be configured to generate first channel information based on respective training fields in each of the first MIMO transmissions; determine a rate at which the first channel information is generated; vary the first transmission rate to a second, different transmission rate based on the rate at which the first channel information is generated; and wirelessly transmit a second set of messages at the second transmission rate to the second wireless communication device.

IPC Classes  ?

• H04B 7/0417 - Feedback systems
• H04W 52/42 - TPC being performed in particular situations in systems with time, space, frequency or polarisation diversity
• G01S 11/00 - Systems for determining distance or velocity not using reflection or reradiation

Abstract

A method includes receiving a ground-truth motion indication from a measurement device. The ground-truth motion indication is a time series of locations and a corresponding indication of a motion state at each location of the time series of locations. The method also includes receiving a time series of detected motion states based on wireless signals communicated through a space over a time period by a wireless communication network comprising a plurality of wireless communication devices. The detected motion states for a time interval within the time series are compared to the ground-truth motion indication for the time interval within the time series to generate a time series of consistency scores. The consistency scores are processed to produce an aggregate motion-detection capability score at each location. The method also includes providing, for display as a graphical representation of motion-detection capability within the space, the aggregate motion-detection capability at each location.

IPC Classes  ?

• G01S 11/00 - Systems for determining distance or velocity not using reflection or reradiation

Abstract

In a general aspect, a rate at which MIMO transmissions are elicited from wireless communication devices is varied. A first wireless communication device may be configured to wirelessly transmit a first set of messages at a first transmission rate to a second wireless communication device. The first wireless communication device may further be configured to receive MIMO transmissions from the second wireless communication device. The first wireless communication device may additionally be configured to generate first channel information based on respective training fields in each of the first MIMO transmissions; determine a rate at which the first channel information is generated; vary the first transmission rate to a second, different transmission rate based on the rate at which the first channel information is generated; and wirelessly transmit a second set of messages at the second transmission rate to the second wireless communication device.

IPC Classes  ?

• H04B 7/0417 - Feedback systems
• H04W 52/42 - TPC being performed in particular situations in systems with time, space, frequency or polarisation diversity

Abstract

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.

IPC Classes  ?

• H04W 64/00 - Locating users or terminals for network management purposes, e.g. mobility management
• H04W 84/12 - WLAN [Wireless Local Area Networks]

Abstract

A method includes receiving a ground-truth motion indication from a measurement device. The ground-truth motion indication is a time series of locations and a corresponding indication of a motion state at each location of the time series of locations. The method also includes receiving a time series of detected motion states based on wireless signals communicated through a space over a time period by a wireless communication network comprising a plurality of wireless communication devices. The detected motion states for a time interval within the time series are compared to the ground-truth motion indication for the time interval within the time series to generate a time series of consistency scores. The consistency scores are processed to produce an aggregate motion-detection capability score at each location. The method also includes providing, for display as a graphical representation of motion-detection capability within the space, the aggregate motion-detection capability at each location.

IPC Classes  ?

• G01S 11/00 - Systems for determining distance or velocity not using reflection or reradiation

Abstract

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.

IPC Classes  ?

• 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

Abstract

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.

IPC Classes  ?

• G01S 11/02 - Systems for determining distance or velocity not using reflection or reradiation using radio waves

Abstract

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.

IPC Classes  ?

• G01D 21/00 - Measuring or testing not otherwise provided for

Abstract

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.

IPC Classes  ?

• G01S 11/02 - Systems for determining distance or velocity not using reflection or reradiation using radio waves

Abstract

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.

IPC Classes  ?

• 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

Abstract

In a general aspect, metrics of interest are generated based on motion data and displayed. In some aspects, a method includes obtaining channel information based on wireless signals communicated through a space over a time period by a wireless communication network. The space includes a plurality of locations. The method includes generating motion data based on the channel information. The motion data includes motion indicator values and motion localization values for the plurality of locations. The method further includes identifying, based on the motion data, an actual value for a metric of interest for the time period; identifying, based on user input data, a benchmark value for the metric of interest for the time period; and providing, for display on a user interface of a user device, the actual value for the metric of interest and the benchmark value for the metric of interest.

IPC Classes  ?

• A61B 5/00 - Measuring for diagnostic purposes Identification of persons
• A61B 5/11 - Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb
• G01S 11/00 - Systems for determining distance or velocity not using reflection or reradiation

Abstract

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.

IPC Classes  ?

• 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