CN117616305A - Apparatus for configuring radio frequency sensing - Google Patents

Abstract

The invention relates to an apparatus (130) for configuring radio frequency sensing of a radio frequency sensing network (100), the radio frequency sensing network (100) comprising network devices (121, 122, 123) (e.g. luminaires), wherein the network is adapted to perform radio frequency sensing in a first area (101, 201, 301) and a second area (102, 202, 302) separated by a physical separation (126, 330). The apparatus comprises a providing unit (131) that determines a first baseline and a second baseline, wherein the first/second baseline is associated with the first/second region, respectively. The first/second baseline enables radio frequency sensing of events in the second area by the network device. The configuration unit (132) is adapted to configure the radio frequency sensing to distinguish between events originating from these areas based on the baseline. This allows the present invention to provide a device that allows more accurate and reliable radio frequency sensing in a predefined sensing area.

Description

Apparatus for configuring radio frequency sensing

Technical Field

The present invention relates to an apparatus, method and computer program product for configuring radio frequency sensing of a radio frequency sensing network. Furthermore, the invention relates to a network comprising a system for configuring radio frequency sensing of a radio frequency sensing network.

Background

Today, radio frequency sensing is often used to detect occupancy of an area using radio frequency capable network devices. In general, in most applications, one is only interested in the movements or changes that occur in the respective configured sensing areas. However, since the radio frequency sensing signal may pass through an obstacle or restriction (such as a wall), the radio frequency signal may be affected by events occurring outside the correspondingly configured sensing area even if the configured sensing area is restricted by the wall, for example. Interaction of the radio frequency signal with objects present outside the configured sensing region may lead to inaccuracy of the detection result within the configured sensing region, e.g., may lead to false positives of the detection result.

It would therefore be advantageous to provide a radio frequency sensing system that allows for more accurate and reliable radio frequency sensing even where radio frequency signals may interact with objects outside of a pre-configured sensing area.

US2014/200856 A1 discloses device-less motion detection and presence detection within a region of interest. A plurality of nodes configured to be arranged around a region of interest form a wireless network. The plurality of nodes transmit wireless signals as radio waves and receive the transmitted wireless signals. Received Signal Strength (RSS) of wireless signals transmitted between a plurality of nodes is measured and a value is reported. The computing device receives the report values of the measured RSS and tracks the report values over time. The computing device processes the reported values using the total interference calculation to detect motion and presence within the region of interest.

Disclosure of Invention

It is an object of the present invention to provide an apparatus, network, method and computer program product that allows more accurate and reliable radio frequency sensing in a predefined sensing area.

In a first aspect of the invention, an apparatus for configuring radio frequency sensing of a radio frequency sensing network is presented, the radio frequency sensing network comprising one or more network devices configured to perform radio frequency sensing, wherein the network is adapted to perform radio frequency sensing in a first sensing area and a second sensing area separated by at least one physical separation, wherein the apparatus comprises a) a baseline determination unit for determining a first baseline and a second baseline, wherein the first and second baselines are determined based on radio frequency signals received by the one or more network devices of the network, and wherein the first baseline is associated with the first sensing area, and wherein the second baseline is associated with the second area and is determined such that it enables radio frequency sensing of events in the second sensing area by the network devices, b) a configuration unit adapted to configure radio frequency sensing of the network devices to distinguish between events originating from the first and second sensing areas based on the first baseline and the second baseline.

Since a first and a second baseline are provided, wherein the first baseline is associated with the first sensing region and the second baseline is associated with the second sensing region, and since the configuration unit is adapted to configure radio frequency sensing of the network device to distinguish between events originating from the first and second sensing regions based on the first baseline and the second baseline, events belonging to the first sensing region and events belonging to the second sensing region can be clearly distinguished. Thus, false positive or false negative detection of an event in one region caused by an event in another region can be avoided, and the accuracy and reliability of radio frequency sensing in both sensing regions can be increased.

The apparatus is adapted to configure radio frequency sensing of a radio frequency sensing network. The radio frequency sensing network includes one or more network devices configured to perform radio frequency sensing. The network is generally formed by one or more network devices, in particular by communication between one or more network devices. The network may be a wired network or a wireless network. Thus, the communication forming the network may be wired or wireless communication. Network communication of network devices forming a network may be performed using any known network protocol, such as WiFi, zigBee, bluetooth, IEEE 802.11, or any other wired or wireless communication protocol. Preferably, a standardized communication protocol is used for network communication of the radio frequency sensing network, such as a protocol provided by IEEE or 3 GPP. A network device may refer to any device that includes network capabilities, i.e. provides the possibility to use a network communication protocol for wired or wireless communication with other network devices. In a preferred embodiment, the network device is a smart home device and the network is part of a smart home system. In general, a smart home device may be considered as a device that provides, in addition to the primary functionality of the device, communication functionality that allows the smart home device to communicate with other smart home devices and form a network. Preferably, at least some of the network devices are intelligent lighting devices, which in addition to the main lighting functionality of these intelligent lighting devices also include communication functionality allowing the network devices to form a network.

The radio frequency sensing network is configured to perform radio frequency sensing with one or more network devices. In particular, at least some of the network devices forming the network include radio frequency sensing capabilities, in particular configured to transmit and/or receive radio frequency signals and to participate in an analysis of the radio frequency signals to generate radio frequency sensing results. In this context, participation of the network device and analysis of the radio frequency sensing signal may simply refer to providing the sensed radio frequency sensing signal to a device adapted to calculate a radio frequency sensing result using a radio frequency sensing algorithm. However, participating may also refer to performing such calculations or at least part of such calculations. Generally, the network is adapted to perform radio frequency sensing in the first sensing region and the second sensing region, wherein the at least one physical separation separates the first sensing region and the second sensing region. In general, the two sensing areas may be of any form and may refer to predefined sensing areas or may be defined based on the location where radio frequency sensing of network devices using a radio frequency sensing network may typically be performed. The first and second sensing regions can have any form and any spatial relationship to each other as long as at least one physical separation separates the first sensing region and the second sensing region. For example, the first sensing area may refer to a room defined by walls, and the second sensing area may refer to an area outside one side of the room, such as may refer to a garden or doorway. In general, the physical separation between the first and second sensing regions may refer to any separation including an extension that may result in an impact on the radio frequency sensing of the radio frequency sensing network. In particular, the separation may affect the radio frequency signal of the radio frequency sensing network. Typically, the physical separation is such that it separates the first and second sensing regions at least for a predetermined period of time. For example, the physical separation may be a fixed physical separation, such as a wall, fence, window, or the like; or may refer to a generally removable physical partition such as furniture (e.g., a wardrobe), flexible walls, or other room dividers that allow for removal or spatial modification of room partitions. Furthermore, the physical separation does not have to completely separate the first and second sensing areas, e.g. the physical separation may not have the same height as the room providing the physical separation, such that the first and second sensing areas defined on either side of the physical separation in the room are not completely separated by the physical separation due to the space left between the physical separation and the ceiling of the room. However, it is preferred that the physical separation extends over at least a majority of the area between the first and second sensing regions.

The first and second sensing regions may be defined, for example, by a location of the network device and by a radio frequency sensing range of the network device, such that the first and second sensing regions may be defined by radio frequency coverage provided by the network device. Preferably, the first and second sensing regions are defined such that all network devices of the network are located on physically separate sides of the first sensing region. In this case, the radio frequency signal received from the second transmission area refers at least in part to a signal that has interacted with the physical separation. However, in some embodiments, the first and second sensing regions may also be defined such that some network devices are also located on physically separate sides of the second sensing region. In this case, the signal received in the second sensing region has also interacted at least partially with the physical separation.

The baseline determination unit is adapted to determine the first baseline and the second baseline based on radio frequency signals received by one or more network devices of the network. For example, the received radio frequency signals may be stored on a storage unit, and the baseline determination unit may be adapted to access the storage unit and retrieve the radio frequency signals to determine the baseline. However, the baseline determination unit may also be directly connected to at least one network device to receive radio frequency signals for determining the baseline.

In general, a baseline may refer to one or more characteristics of one radio frequency signal or one radio frequency signal, which is used as a reference with respect to a later determined radio frequency signal, wherein the radio frequency sensing result is determined based on the difference. A baseline may refer to a plurality of radio frequency signals or one or more characteristics of a plurality of radio frequency signals that are used as a reference with respect to a later determined radio frequency signal, wherein a radio frequency sensing result is determined based on the difference. For example, the baseline may be determined such that it indicates a known physical state of the region for which the baseline was determined. For example, a known physical state of an area may refer to a known presence or absence of a particular object (e.g., one or more people) in the area. The baseline may then be determined, for example, by detecting radio frequency signals provided by network devices in the area during a known physical state of the area. Such detected radio frequency signals may then be used directly as a baseline, or may be further processed prior to use as a baseline, such as by averaging, weighted averaging, filtering, or the like. In addition, one or more characteristics of such detected radio frequency signals (e.g., average or highest or lowest amplitude of such detected radio frequency signals) may also be used as a baseline. Preferably, the first and second baselines are determined based on the same received radio frequency signal.

The first and second baselines determined by the baseline determination unit are associated with the first and second sensing regions, respectively. Such correlation refers to the availability of a respective baseline for sensing events in a respective sensing region. Thus, a first baseline associated with the first sensing region is determined such that the radio frequency sensing algorithm can utilize the first baseline to determine events occurring within the first sensing region. Thus, a second baseline associated with the second sensing region is determined such that the radio frequency sensing algorithm can utilize the second baseline to determine sensed events in the second sensing region. In particular, the first and second baselines are determined such that events can be detected in the first and second sensing areas by utilizing the same network device (i.e., by utilizing the same radio frequency sensing signal). In particular, the first and second baselines are determined based on baseline measurements performed by the same radio frequency sensing network device. Thus, in order to perform radio frequency sensing in the first and second sensing areas, the network devices are not, for example, divided into two different network groups, each network group independently performing radio frequency sensing in the respective first and second sensing areas. This allows for easier control and configuration of the radio frequency sensing network.

Generally, after the first and second baselines have been determined, the baselines may be stored on the respective memories so that they may be utilized by the configuration unit. In particular, different first and second baselines may be determined and stored such that the configuration unit may select the respective baselines, e.g. based on the sensed target.

The configuration unit is adapted to configure radio frequency sensing of the network device to distinguish between events originating from the first and second sensing areas based on the first baseline and the second baseline. In particular, the radio frequency sensing is configured such that based on the first and second baselines, the radio frequency sensing is performed in first and second sensing areas that depend on each other. This allows for the interaction of the radio frequency signal with objects in one region when radio frequency sensing is performed in another region to be considered via the first and second baselines. Preferably, the configuration unit is adapted to configure the radio frequency sensing such that processing instructions based on processing of radio frequency signals acquired by one of the network devices of the network during radio frequency sensing with the first and second baselines are differentiated between events originating from the first and second areas. For example, the processing instructions may refer to rules indicating how the radio frequency signals should be processed by the radio frequency sensing algorithm and how the first and second baselines should be utilized in the radio frequency sensing algorithm. In particular, such processing instructions may be stored on a memory that is accessible by the configuration unit together with instructions with the applicability of the respective processing instructions. For example, for different sensed targets and different first and second baselines, respective different processing instructions may be stored. The configuration unit may then be adapted to implement processing instructions to configure the radio frequency sensing in dependence of the respective sensing target and the first and second baselines. The respective rules may be based on, for example, the physical state for which the respective first and second baselines have been determined. Furthermore, the rules may indicate how the respective radio frequency sensing algorithm should utilize the first and second baselines for the currently detected radio frequency signals of the network device. For example, the rule may indicate that the radio frequency sensing algorithm should first determine the presence or absence in the first sensing region using the first baseline, e.g. by comparing the first baseline with a currently sensed radio frequency signal, wherein if the presence is detected, the rule indicates that the radio frequency sensing algorithm should determine the presence or absence in the second sensing region using the second baseline in a next step, wherein presence detection in the second sensing region may indicate that presence detection in the first sensing region may be a false positive detection caused by the presence of a person in the second sensing region. However, the rule may also indicate that the radio frequency signal is filtered first (e.g., with the second baseline) and then events in the first sensing region are detected in the radio frequency sensing algorithm with the first baseline and the filtered radio frequency signal.

In general, after the configuration unit has configured the radio frequency sensing of the network device, the radio frequency sensing of the network is performed according to the configuration. However, the configuration unit may be adapted to reconfigure the radio frequency sensing of the network from time to time, e.g. based on user feedback, or based on newly provided first and second baselines.

In one embodiment, the first baseline is determined based on radio frequency signals received when both the first sensing region and the second sensing region are in the same state relative to a sensed target of radio frequency sensing performed by the network device, and wherein the second baseline is determined based on radio frequency signals received when the first sensing region and the second sensing region are in different states relative to a sensed target of radio frequency sensing performed by the network device. The sensing target of the radio frequency sensing performed by the network may refer to any radio frequency sensing target, such as presence/absence detection of an object in a room, specific activity detection of an object in a room, health parameter detection of an object in a room, status detection of a specific object in a room, etc. In this case, the subject is generally referred to as an organism, in particular a human or animal. Thus, the same state of the respective first and second sensing regions with respect to the sensing target refers to a state in which the same detection result with respect to the sensing target will be achieved during radio frequency sensing. For example, if the radio frequency sensing target refers to presence/absence detection of an object, the same state of the first and second sensing regions may be achieved if a person is present in both sensing regions, or if a person is absent in both sensing regions. Thus, in this example, if a person is present in one sensing region and no person is present in another sensing region, a different state of the sensing region will be achieved. When the first and second baselines are applied to the currently detected radio frequency signal, utilizing the first and second baselines determined as described above allows for clearly distinguishing between events detected in the first sensing area and events detected in the second sensing area.

In a preferred embodiment, the sensing target refers to presence/absence or activity detection of an object in the first and second areas, wherein when receiving the radio frequency signal for determining the first baseline, the state of the first and second sensing areas refers to a state in which the object is absent or inactive in the first and second areas, respectively. Further, it is preferable that when the sensing target means presence/absence or activity detection of the object in the first and second areas, the states of the first and second sensing areas mean states in which the object is not present or inactive in the first area and is present or active in the second area, respectively, when the radio frequency signal for determining the second baseline is received.

In one embodiment, the apparatus comprises a user interface unit, wherein the user interface unit is adapted to provide instructions to a user regarding performing specified actions in the first area and the second area, wherein the first and second baselines are determined based on radio frequency signals received by one or more network devices of the network when the user performs the actions indicated by the instructions. The user interface unit may for example also be a device that is part of the network. However, the interface unit may also be a device that is not part of the network and is for example only communicatively connected to the baseline determination unit, for example. The user interface unit may be a dedicated unit, such as a dedicated display, but may also be an interface unit that is also used for different purposes, such as a user's smart phone, a speaker, a computer display, a television display, etc. In general, the user interface unit may refer to any kind of interface, in particular to a visual and/or audio interface. Thus, the user interface unit may be adapted to provide visual and/or audible instructions to the user. Instructions may refer to any kind of instructions provided, for example, in written form or in symbolic form that a user may interpret accordingly. In the case of an audible signal, the instructions may be provided as a speech output or an audible signal that may be interpreted accordingly by the user. The instructions may be provided according to, for example, the respective sensed target. For example, if the sensing target refers to presence/absence detection, the instructions may be adapted to prompt the user to be present in a particular area of the room, e.g. in a first area for a period of time, and then in another area of the room (e.g. in a corresponding second area). In another example, if the sensed target refers to activity detection, the instructions may prompt the user to perform a corresponding activity, e.g., first in a first sensing region and then in a second sensing region.

Additionally or alternatively, the interface unit may also be adapted to query the user about previously or currently performed activities. In this case, the first and second baselines may be determined based on radio frequency signals that have been received during a previously or currently performed activity. For example, the interface unit may ask the user if he has previously been present in the second sensing area (e.g. in the corridor) and has now entered the first sensing area (e.g. the living room). Based on the user's answer, the first and second baselines may be determined using the previously and currently received radio frequency signals.

For the user interface unit, a user action derivation unit may additionally or alternatively also be provided, wherein the user action derivation unit is adapted to derive a specific action of the user from user interaction data received when the user interacts with the network (i.e. with one or more network devices in the network) in any way. For example, if some network devices refer to lighting devices and a user interacts with the lighting devices by turning on the lighting devices, the user action deriving unit may be adapted to derive that the user is currently in a room that has been lit as the user action, whereas if the light is turned off, the user action deriving unit may be adapted to derive that the user is not in a room that has been lit as the current user action. The first and second baselines may then be determined based on radio frequency signals that have been received when the user action derivation unit has derived respective user actions involving respective sensed objects in the first and/or second sensing regions. Furthermore, the user action derivation unit may be adapted to derive the user action with the context data in addition to or instead of the user interaction data. For example, the environmental data may refer to a current time of day, a current state of an alarm system, a current state of a door lock, a current date, a current temperature, and the like. For example, the user action derivation unit may be adapted to derive from the data indicating that the user activity is currently late at night that no object is present in the office room, wherein the object is sleeping in an adjacent bedroom at the same time. If the sensing target is, for example, sleep monitoring, then the first and second baselines, for example, for offices and bedrooms, may be determined accordingly.

In one embodiment, to determine the first and second baselines, a direction of reception of radio frequency signals received by the one or more network devices is determined, and wherein the first and second baselines are determined based on radio frequency signals acquired from directions associated with the first and second sensing regions, respectively. Preferably, to determine the second baseline, a radio frequency signal path of the acquired radio frequency signal affected by the event in the second sensing region is determined, and wherein the second baseline is determined based on the received radio frequency signal associated with the determined radio frequency signal path. For example, if the radio frequency signals refer to CSI radio frequency signals, each radio frequency signal refers to a plurality of radio frequency signal paths that can be distinguished. Thus, a radio frequency signal path may be determined that may be affected by an event in the second sensing region, e.g., a radio frequency signal path received from the direction of the second sensing region. The second baseline may then preferably be determined based solely on the radio frequency signals associated with the radio frequency signal paths affected by the event in the second sensing region. This determination of the second baseline allows a very good distinction between events in the first sensing region and events in the second sensing region.

In one embodiment, the first and second baselines are determined based on different signal characteristic ranges of the same received radio frequency signal. In general, a signal characteristic range refers to a range of possible values of a signal characteristic. For example, a signal characteristic may refer to, for example, the frequency, phase, or amplitude of a signal. A range may also typically include several frequency bands, where a frequency band refers to a sub-range within the range. In some cases, the gap between frequency bands may be defined by a range of values that is not part of the range. Thus, in some cases, a range may also be defined as a range of interrupts, where an interrupt of a range refers to a value that belongs to that range. In a preferred example, different frequency ranges of the received radio frequency signal may be utilized for the first baseline and the second baseline. Further, for the first baseline, for example, a higher amplitude range may be used because events in the first sensing region are expected to cause higher signals than events in the second sensing region. Thus, for the second baseline, a lower amplitude range than for the first baseline may be selected as the basis.

In one embodiment, the processing instructions refer to filtering one of the first and/or second baselines from the radio frequency signal received by the radio frequency sensing network to distinguish between events originating from the first and second sensing regions. For example, filtering may be performed by subtracting the first and/or second baselines from the radio frequency signal. Furthermore, filtering may also refer to weighted filtering, for example, in which certain signal portions of the first and second baselines are weighted more heavily than other portions of the first and/or second baselines, and are thus more strongly filtered out in the radio frequency signal. For example, radio frequency signal paths identified in the first baseline as coming from the second sensing region may be provided with higher weights such that they are more strongly filtered out when applied to radio frequency signals. However, filtering may also refer to more complex filtering, for example, filtering that only changes one or more characteristics of the radio frequency signal based on the first and/or second baselines. For example, if one of the baselines indicates (particularly includes) a periodic movement, such as a movement of a fan or other particular event, filtering may be applied such that only the corresponding periodic movement indicated by the first and/or second baselines is filtered out of the radio frequency signal. The filtered radio frequency signal is then utilized, for example, in a radio frequency sensing algorithm to determine the result of the radio frequency sensing.

In one embodiment, the configuration unit is further adapted to configure the functionality of the radio frequency sensing network for sensing events in the second sensing area based on a predetermined rule set. For example, these predetermined rule sets may refer to the corresponding processing instructions described above. However, the predetermined rule set may also refer to an entirely different rule set. For example, the rule set may refer to a logical rule set that is applied after the sensing result is acquired for each sensing region. For example, the rule set may refer to subtracting the result of the second sensing region from the result of the first sensing region based on the corresponding baseline to receive the correct result of the first sensing region. Furthermore, the rule set may also refer to a security rule indicating that, for example, events sensed in the second sensing region are only used to correct event detection in the first sensing region and that events sensed in the second sensing region are not to be recorded. Such rules may be used, for example, in cases where the second sensing region does not belong to the network owner.

In a further aspect, a network is presented, wherein the network comprises one or more network devices adapted to perform radio frequency sensing, wherein the network is adapted to perform radio frequency sensing in a first sensing area and a second sensing area separated by at least one physical separation, wherein the radio frequency sensing of the network devices is configured to distinguish between events originating from the first and second sensing areas based on the first baseline and the second baseline by an apparatus as described above.

In a further aspect of the invention, a network is presented, wherein the network comprises one or more network devices adapted to perform radio frequency sensing, and an apparatus as described above.

In a further aspect of the invention a method for configuring radio frequency sensing of a radio frequency sensing network is presented, the radio frequency sensing network comprising one or more network devices configured to perform radio frequency sensing, wherein the network is adapted to perform radio frequency sensing in a first sensing area and a second sensing area separated by at least one physical separation, wherein the method comprises a) determining a first baseline and a second baseline, wherein the first and second baselines are determined based on radio frequency signals received by the one or more network devices of the network, and wherein the first baseline is associated with the first sensing area, and wherein the second baseline is associated with the second area and is determined such that it enables radio frequency sensing of events in the second sensing area by the network devices, b) configuring radio frequency sensing of the network devices to distinguish between events originating from the first and second sensing areas based on the first baseline and the second baseline.

In a further aspect of the invention, a computer program product for configuring radio frequency sensing of a radio frequency sensing network is presented, wherein the computer program product comprises program code to cause an apparatus as described above to perform the method as described above.

It shall be understood that the apparatus as described above, the network as described above, the method as described above and the computer program product as described above have similar and/or identical preferred embodiments, in particular as defined in the dependent claims.

It is to be understood that the preferred embodiments of the invention may also be any combination of the dependent claims or the above embodiments with the corresponding independent claims.

These and other aspects of the invention are apparent from and will be elucidated with reference to the embodiments described hereinafter.

Drawings

In the following figures:

figure 1 schematically and exemplarily shows a system for configuring a radio frequency sensing network in a first sensing region adjacent to a second sensing region,

figure 2 is a schematic representation of different states of the first and second regions for determining the first and second baselines,

FIG. 3 shows the effect of physical separation on RF signals in RF sensing applications, an

Fig. 4 illustrates a method of configuring radio frequency sensing.

Detailed Description

Fig. 1 shows an embodiment of a network 100, the network 100 comprising means 130 for configuring radio frequency sensing of a radio frequency sensing network to distinguish between events originating from a first sensing region 101 and a second sensing region 102. In the example shown in fig. 1, the radio frequency sensing network 100 is installed within a house or room 101 and includes one or more network devices 120, 121, 122, 123, wherein in this example, the network devices 120, 121, 122, 123 are installed within the house or room 101. In this case, the first sensing area 101 substantially corresponds to the house or room 101, and the network devices 120, 121, 122, 123 are placed within the first sensing area 101. In this embodiment, the walls of the house or room 101 provide a physical separation 126 for the second area 102 outside the first area 101. The network device 120, 121, 122, 123 comprises at least one antenna for receiving radio frequency signals. The device 130 may be communicatively coupled to a network via a communication link 124, such as a wireless communication link. For example, the apparatus may be communicatively coupled to a network to configure radio frequency sensing of a radio frequency sensing network. In general, the radio frequency signal may originate from a radio frequency background present within the environment. Alternatively, the radio frequency signal may also be transmitted by one of the one or more network devices 120, 121, 122, 123, as indicated by the symbol 125. In addition, the radio frequency signal may also be generated by a particular device configured to transmit the radio frequency signal for radio frequency sensing of the network device.

In the embodiment of fig. 1, network 100 includes a device 130. The apparatus 130 comprises a baseline determination unit 131, the baseline determination unit 131 being adapted to determine a baseline of radio frequency sensing based on radio frequency signals received by network devices of the network 100. For example, a first baseline may be determined when the first sensing region 101 and the second sensing region 102 are in a particular state relative to the sensing target. For example, the first sensing region 101 (i.e., the interior of the house or room 101) may be in an empty state, and the second sensing region 102 outside the first sensing region may also be in an empty state with respect to the objects whose presence should be determined as a sensing target. The first baseline may then be determined based on radio frequency signals received by the network devices 120, 121, 122, 123 during respective states of the first and second sensing regions 101, 102. For example, the received radio frequency signals may be averaged and a baseline may then be determined based on the average. For example, the average amplitude may be used as a baseline, or the average amplitude may be increased by a predetermined value to account for potential additive noise.

Then, for example, when an object (e.g., a person) that should be determined as a sensing target is present in the second sensing region 102, such as when the object is present in an room or outside a house, a second baseline may be determined. Further, when the second baseline is determined, the first sensing region 101 is empty. In this exemplary embodiment, the presence of a person may introduce fluctuations into the radio frequency signal received from the second sensing region 102. Because in this example, radio frequency signals that are disturbed by the presence of a person outside the house or room 101 (i.e. in the second sensing region) must propagate through the physical separation and are thus attenuated, the presence of a person in the second sensing region 102 introduces less fluctuations to the received radio frequency signals than the presence of a person in the first sensing region (e.g. inside the house or room 101). A second baseline is then determined based on the received radio frequency signals in the second state, for example also by averaging the received radio frequency signals. The second baseline may be determined based on the interaction of the received radio frequency signal with the at least one physical separation 126, 330.

Thus, in this embodiment, the baseline is determined to represent a stable situation in both cases, i.e. a first case corresponding to a state where both the first sensing region 101 and the second sensing region 102 are empty, and a second case corresponding to a case where the first region 101 is empty and the second sensing region 102 is occupied. Preferably, in this case, the baseline is determined by adding a predetermined value to the average amplitude value measured during both stable situations.

In another example, the baseline determination unit 131 may be adapted to determine the first and second baselines for the same physical state (e.g. empty state) of the first area 101 and the second area 102 based on the received radio frequency signal. Since the fluctuations introduced into the received radio frequency signal are higher in the case where the first region is occupied than in the case where the second region is occupied, the first baseline may be determined to be a value up to 20% higher than the average amplitude value of the received signal in the empty state. Since in this case a person outside or inside the second sensing area only introduces fluctuations of between 10% and 20% above the average value, the baseline determination unit 131 may be adapted to determine the average amplitude signal of the received signal as the second baseline. Thus, when using the first and second baselines for radio frequency sensing, for example, by considering only signals above the respective threshold, only received radio frequency signal fluctuations above the first baselines are considered for determining the presence of an object in the first sensing area 101. Whereas determining the presence in the second sensing region using the second baseline may take into account lower fluctuations. Thus, the radio frequency sensing network 100 configured as described in the present embodiment allows distinguishing between events in the first and second sensing regions.

In other embodiments, the activity of an object or other sensing target detectable with a radio frequency signal may be considered. The baseline determination will then have to conform to the parameters set by the selected sensing target or detection mode. For example, breath detection is based on analysis of signal characteristics that differ from those considered by presence detection.

The apparatus 130 further comprises a configuration unit 132 for configuring the network 100. In particular, the configuration unit 132 is adapted to configure the radio frequency sensing of the network 100, e.g. the configuration unit 132 may be adapted to determine which radio frequency sensing algorithm is used for radio frequency sensing, and how to utilize the first and second baselines in radio frequency sensing of the network 100 to distinguish between events originating in the first sensing area 101 and/or the second sensing area 102.

Fig. 2 shows a more detailed example of the functionality of the apparatus 100 for configuring the network 100 shown in fig. 1. In this example, the first sensing region 201 corresponds to a first room and the second sensing region 202 corresponds to a second room 202 adjacent to the first room, with the network device inside the first room. The physical separation between the two rooms may be a wall or a wall with one or more doors or windows. Fig. 2a shows a state in which both rooms are empty, fig. 2b shows a case in which a first room is occupied and a second room is empty, fig. 2c shows a case in which the first room is empty and the second room is occupied, and fig. 2d shows a case in which both rooms are occupied. In this embodiment, the configuration of the system may be accomplished with respect to the occupancy or presence of people in different areas as described above. However, in this example, the apparatus 130 further comprises an optional user interface unit 133, which user interface unit 133 may comprise or be in communication with a user interface which may prompt the user to fulfil certain conditions during configuration. These conditions may refer to the state of the first and second sensing regions. For example, the configuration may start from a situation where both rooms are empty. The user can confirm that both rooms are empty via the user interface unit 133. Alternatively, the user may confirm that the sensing regions have been empty for a particular period of time that he may indicate, or that both sensing regions will be empty for a particular period of time that he may indicate. Furthermore, the user interface unit may use GPS tracking of the user device or WiFi device identified by its radio frequency signal to identify whether one of the areas is empty. In the described scenario, when the state is such that both rooms are empty, the baseline determination unit 131 may then determine the first baseline. For example, the system may determine an average value of the radio frequency signals and then set the baseline to a value that is a specified percentage higher than the average value, where the percentage may be determined such that the presence of a person in the area typically introduces interference of the radio frequency signals above the value. However, the user interface unit 133 may also be adapted to prompt the user to occupy one of the areas and to measure the disturbance with respect to a previously determined average value and then to determine the specified percentage based on the measured disturbance.

In a next step, the user interface unit 133 may indicate to the user that only the first sensing area 101 should be empty and that the second sensing area 102 should be occupied. The user may then confirm whether this situation is or will be met at some specified time, or simply confirm that the situation exists. This again allows the baseline determination unit 131 to determine an average or actual value in this particular situation. However, the interface unit 133 may also be adapted to prompt the user to occupy the first sensing area 101 and to ensure that the second sensing area 102 is empty and then to measure the effect of the presence of a person in the first area on the received radio frequency signal accordingly. Furthermore, the baseline determination unit 131 may be further adapted to determine a second baseline in case both sensing areas are occupied. After these configuration steps, the baseline determination unit 131 has determined the first and second baselines according to one of the above-described possibilities. For example, the first baseline then corresponds to a background signal caused by any kind of radio frequency signal in the first region 101 and the second region 102.

The configuration unit 132 may then be adapted to configure the radio frequency sensing such that based on the determined first and second baselines, the radio frequency sensing may distinguish between events in the first sensing region 101 and the second sensing region 102. For example, the configuration unit 132 may be adapted to configure the radio frequency sensing such that the first received radio frequency signal is compared with the first baseline to determine whether a person is present in one of the first and second areas. If it is determined that a person may be present in one of the areas, the radio frequency sensing may be configured to compare the received radio frequency signal with the second baseline to determine if the received signal is similar to the signal caused by a person present in the second sensing area 102. If this is the case, the radio frequency sensing result may refer to the detection of a person in the second area 102 instead of in the first sensing area 101.

Thus, radio frequency sensing may be configured based on the respective determined baselines, so that the impact of other events (such as respiration or fall detection) is derived in a similar manner. In another embodiment, it may be advantageous to also determine the influence of more than one person present in the sensing region. Furthermore, the first and second baselines may also be determined by one person in the first area 101 or one person in the second area 102 or one person and another person in the first area 101 and two persons in the second area 102 or any combination thereof. Furthermore, the number of people may be increased in steps of one, and the baseline determined based on these measurements is also indicative of the impact of a corresponding number of people present within the sensing region.

Hereinafter, further preferred embodiments will be described in more detail. In a normal radio frequency sensing configuration, one is typically interested in events occurring within a first sensing region of the configuration, which may be the only interior region. However, since the wireless signal has no clear boundary limit in space, the radio frequency signal received in the first sensing region may be the result of an event outside the first sensing region of the configuration of interest. In particular, the outside of the first sensing region may thus be regarded as a second sensing region outside of the first sensing region. Thus, activity outside the first sensing region (i.e., the region of interest) may affect detection performance, resulting in false triggers, for example. However, in the present invention, these disturbances from outside the first sensing region are deliberately used to provide additional insight of interest. In the case where there is a clear physical separation (e.g., wall) between the first and second zones, the present invention is based on utilizing a second external sensing profile (i.e., second baseline) alongside the first standard baseline to distinguish between events originating from the internal zone and the external zone (i.e., first and second transmission zones). It is therefore an object of the invention not to define a new, separate, radio frequency sensing set addressing the second external area, but to reuse the measurements already taken by the existing radio frequency sensing set, which is preferably used for monitoring the interior of the room, for external monitoring by utilizing a different baseline. With a specific additional baseline tailored to detect external activity (i.e. activity in the second sensing region), the sensing reliability of the first sensing region will be improved, as well as enabling the definition of the external second sensing region without any additional sensing overhead on the network.

In general, radio frequency sensing systems are using the changing effects of radio frequency signals transmitted in their environment. On the receive side, the received radio frequency signal strength from the source, as well as other signal quality related properties (such as CSI for Wi-Fi), for example, may vary depending on the absorption, reflection, diffraction, and scattering of the transmitted signal. The change in the received radio frequency signal may be caused by moving objects within or near the sensing region. A preferred radio frequency sensing system (i.e. network) consists of several radio frequency sensing devices, network devices, which preferably define a first sensing area. Within this first sensing area, sensing will be performed to detect e.g. the movement or presence of a person, or respiration and fall detection, etc. However, the radio frequency signal will also pass through most of the physical separations that limit the first sensing region, wherein there will be an attenuation with respect to the signal strength and/or a modification of other parameters or characteristics of the respective radio frequency signal, such as a phase shift on CSI. The variation may be different depending on the thickness of the material and the orientation of the physical separation. However, these variations are not important when radio frequency signals are used for communication between network devices, since in most cases the radio transmit power is configured to allow good data reception also in other rooms, i.e. the signals are still well readable by the receiver despite the above variations. This also means that for radio frequency signal measurements, the signals can pass through the wall and can return if they find on other objects outside the wall that the signals are reflected or received by a radio frequency node on the other side of the wall. However, a particular wireless signal that leaves the room first and returns back into the room again through the wall will be available for sensing in the outer zone, but will also affect the motion sensing algorithm within the inner zone. In general, where the transmitting and/or receiving radio frequency sensing devices (i.e., network devices) are located in relatively close proximity to such physical separation (e.g., a wall), the effects of the transmitted and returned signals on radio frequency sensing will be higher than when the network devices are further away from the physical separation. Depending on the use case, the external signal may be a desired source of additional information or may be undesired interference. Thus, for example, during initial setup of the sensing region, the configuration unit may be adapted to utilize predetermined selection criteria to decide whether to include or exclude radio frequency signals initiated and/or received by network devices close to the physical separation in radio frequency sensing of the network, especially when the application requires that the sensing may well distinguish between sensed events within two separate regions. In general, physical separation is also often referred to throughout this application as "walls," and may also refer to doors, windows, ceilings, floors, compartment dividers, large pieces of furniture, and other separations between areas.

Typically, in radio frequency sensing, the baseline is used to identify motion, presence, or other events, such as a respiratory pattern or fall occurring in a defined first sensing region. In the present invention, it is suggested to introduce a specific additional baseline (i.e. a second baseline) for detecting events in the second sensing region on the other side of the physical separation and to employ the second baseline to better distinguish whether a specific event has occurred in the first sensing region or in the second sensing region. The second baseline may be determined based on the interaction of the received radio frequency signal with the at least one physical separation 126, 330.

As described above, the radio frequency sensing device (i.e., the network device) also receives a transmitted radio frequency signal that is reflected from an outside (e.g., external) area back to the configured first sensing area. The reflected signal may affect detection associated with a first sensing region, preferably an inner region. Such effects may be desirable, undesirable, or both. For example, an undesirable effect may be that a person present in the second sensing region may be falsely detected by the network as being in the first sensing region. This creates a false positive because the detected motion is not in the first sensing region. This is especially troublesome in, for example, apartment buildings, where there may be many overlapping walls shared with neighbors, resulting in multiple sources of false positives. Further, from a privacy perspective, it is undesirable for the network to begin detecting and recording activity in the neighboring apartments in the absence of a user. From a privacy perspective, it is highly desirable to ignore and hide any such detection as early as possible in the process flow. An example of a desired effect may be that in certain situations, the user is interested in what is happening in the second sensing area. This may be the case, for example, when an early indication of the movement occurring outside the area is obtained before the movement trajectory progresses inside the room, for example, to ensure a low delay, or when a thief in the garden detects them before they have a chance to reach/destroy the house.

Hereinafter, some examples of configurations of radio frequency sensing of the first and second baseline based networks will be provided. One or more of these configurations are preferably stored on the memory, e.g. in the form of respective rules, and are accessible by the configuration unit, which may then be adapted to configure the radio frequency sensing accordingly with these rules.

For example, in the case of an application not interested in detecting events in the second sensing area, the configuration unit may be adapted to, for example, configure the radio frequency sensing such that the second baseline is used to filter out potential false positive events resulting from interactions of the radio frequency signal with objects in the second area. This may improve the detection performance of the first sensing region, e.g. fewer false positives, because the system is able to not misinterpret events in the second sensing region as events in the first sensing region.

In one example, where there is also interest in obtaining more insight as to what is happening in the adjacent second sensing area, the configuration unit may be adapted to, for example, configure the radio frequency sensing such that the second baseline is used to distinguish between the first and second area events. Preferably, in order to perform radio frequency sensing in both sensing areas, the same radio frequency sensing device (i.e. the same network device) is used, so that the introduction of additional wireless traffic can be avoided. In one example, the same network device or subset of network devices may be used to determine the second baseline based on the interaction of the received radio frequency signal with the at least one physical separation 126, 330. The use of the first and second baselines may be used to distinguish between the first and second regions.

Fig. 3 shows the effect of physical separation on the radio frequency signal. The network devices 321, 320 are in the first sensing region 301. The physical separation 330 separates the first sensing region 301 from the second sensing region 302. A person 340 is present in the second sensing region 302. The figure shows that each wireless multipath signal between transmitting and receiving network devices is unique, however, the absorption caused by the wall in both directions has a very pronounced effect on the signal compared to free air transmission. For example, direct path 350 is only affected by absorption caused by air between network device 320 and network device 321, while the signal on reflected path 351 has a longer run time due to a longer path length and will change phase and signal strength due to reflection on the wall surface. Furthermore, the absorption path through the wall and reflected by the person 340 and then passed through the wall a second time and then received by the network device 320 only then is the signal path of greatest attenuation. In particular, the signal has the longest running time and is absorbed twice by the wall. Thus, due to the change in refractive index, the signal experiences at least four directional and/or phase changes and is also affected by reflection by the person 340. Thus, even in a scenario where there is no person or activity to be sensed in any area, different signal paths that occur due to the presence of physical separation can be identified and measured. Thus, in one embodiment, the apparatus allows configuring radio frequency sensing of the network such that it is possible to detect whether a person 340 is present in the first sensing region 301 or the second sensing region 302 by identifying respective multipaths of the signal. In the example shown in fig. 3, the multipath signal corresponding to the signal absorbed twice by the wall also includes characteristics of the moving person 340, such that the radio frequency sensing of the network may in this case be configured to associate the moving person 340 with the second sensing region 302. In addition, other effects are contemplated, for example, physically separated materials may result in lensing of the wireless signal, particularly in the case of direct 60GHz signals. In some cases, the radio frequency signal may also only pass through the physical separation once. For example, if a physical separation refers to a room divider or furniture, the return path of interaction to the network device on the other side of the physical separation cannot be effectively impeded by the same physical separation or any physical separation. In this single pass case, the absorption will be reduced compared to the double pass case. Thus, this special case can also be distinguished and considered when determining and utilizing the two baselines.

In a preferred embodiment, the present invention is applicable to a radio frequency sensing network in which radio frequency sensing capable network devices form a first sensing region 301. Further, in addition to the first sensing region 301, a respective second sensing region 302 may be defined on the other side of the physical separation 330. The means 130 is adapted to determine a first baseline and a second baseline, each baseline corresponding to a respective sensing area, wherein for this determination and also for radio frequency sensing it is preferred to utilize the same radio frequency sensing signal and sensing data. Furthermore, for the second baseline, the same radio frequency sensing signal is affected by the interaction of the radio frequency signal with the at least one physical separation 126, 330. The radio frequency sensing may then be configured to apply a filter to exclude/distinguish external events from internal events (events in two different sensing regions).

In a preferred embodiment, the configuration means 130 is used during a configuration period of radio frequency sensing of the network 100, for example during a setup of the network 100. However, the configuration means may also be used after the setting up of the network (e.g. when a change has occurred in the network environment). In particular, during configuration, after selecting and configuring the most suitable network device that should participate in the radio frequency sensing task of the network, in a next step, the baseline determination unit may be used to prepare two baselines for the two sensing areas. In particular, a first baseline is determined for a first sensing region of the configured network device and a second baseline is determined for a second sensing region of the configured network device. In one example, the second baseline may be determined such that it is based only on a subset of the multipaths of the received radio frequency signal, preferably those multipaths that are compared to all received multipaths most strongly affected by events in the second sensing region. Additionally or alternatively, the second baseline may be determined such that it is associated with a subset of wireless sensing frequencies that are different from the first baseline, e.g., only 2.4GHz signals may be used to determine the second baseline, as these allow for better penetration of the physical separation, while the 5GHz signals are ignored. Further, the determination of the second baseline may also be based on a subset of directivities of radio frequency signals transmitted by the network device, e.g., when directional WiFi is used, only signals from a subset of antennas at the network device may be utilized. However, it is preferred that for determining the two baselines, radio frequency signals from the same group of network devices are used. In general, two initial baselines may be determined based on signals received during a walk test across both the first and second sensing areas.

The baseline determination unit may be adapted to create a baseline from signals received at a moment of given predetermined confidence that the desired state exists or ever exists at that moment, e.g. that no person is present or ever present in the first sensing area, e.g. during a "away" period indicated by the GPS of the user phone. The network may then learn based on the determined baseline to classify such events as external motion and as such identify them as false positives for the first sensing region. Further, for example, if the second sensing area is a neighboring apartment, it may or may not be possible to conduct a walk test in the second sensing area. In this case, the baseline determination unit may be adapted to determine the second baseline, e.g. from signals received whenever the user is not home or near the first sensing area. Thus, in this case, a first baseline is determined that indicates a state in which both regions are "empty", and a second baseline indicates a state in which the first sensing region is "empty", but presence/motion is detectable in the second sensing region. The baseline determination unit may be adapted to utilize heuristics to decide which baseline is associated with the second sensing region, e.g. a long term baseline determined from signals received at night is assumed to describe a situation where no presence/motion is present in the second sensing region.

The configuration unit is then adapted to configure the radio frequency sensing of the network, in particular to determine which actions the radio frequency sensing performs when an event that may be associated with the second sensing area is detected. For example, as a default configuration, the second baseline may be used to filter out multipath signal components that may be affected by the second sensing region in order to improve the reliability of sensing in the first sensing region. However, if the user decides to utilize the second sensing area, the configuration unit may also be adapted to configure the radio frequency sensing to enable such sensing in the second sensing area with a corresponding filtering having the first baseline. For example, sensing in the second sensing area may be used to reduce latency in the detection area or to detect unexpected guests in the garden.

On the other hand, if the external second sensing area belongs to a private area of another person (e.g. an apartment of a neighbor), the configuration unit may be adapted to receive the corresponding information and configure the radio frequency sensing to ignore radio frequency signal distortions from the second sensing area so that no false alarms are present in the first sensing area and events are not recorded in any way in view of privacy concerns/problems/regulations. Alternatively, the configuration unit may be adapted to configure the radio frequency sensing to employ the motion profile to discern that the second sensing region is not associated with the apartment of the user, e.g. when there is never a continuous motion profile from the second sensing region to the first sensing region, this indicates that the two regions are not interconnected. The motion trajectory analysis may be performed automatically and subsequently the configuration unit may be adapted to automatically select configuration rules regarding external sensed events.

The network configuration as described in any of the above embodiments can be applied to a plurality of application fields/use cases. For example, for inline houses or semi-self-contained houses, the configuration with additional baselines enables detection of undesired events from neighboring houses to be excluded, such that internal false positives are prevented. Also, in premises located near a public aisle, this configuration allows to exclude the detection of undesired events from the public aisle, to prevent internal false positives. Furthermore, for apartments with common hallways, this configuration allows for the exclusion of undesired events from the hallway. Furthermore, for houses with adjacent gardens or yards, movement or presence in the garden/yard can be detected from the indoor network device without the need to provide additional network devices. In this case, the indoor network device may thus be used to supplement other presence/motion sensors in the external area.

Fig. 4 illustrates an exemplary flow chart of a method 400 for configuring radio frequency sensing of a radio frequency sensing network, such as network 100. The method 400 includes step 410: a first baseline and a second baseline are determined, wherein the first baseline and the second baseline are determined based on radio frequency signals received by one or more network devices of the network. The first baseline is associated with a first sensing region and the second baseline is associated with a second region and determined such that it enables radio frequency sensing of events in the second sensing region by the network device. This step 410 may be performed, for example, by the baseline determination unit 131 as described above. Furthermore, the method 400 comprises a step 420: radio frequency sensing of the network device is configured to distinguish between events originating from the first and second sensing regions based on the first baseline and the second baseline. This step 420 may be performed, for example, by the configuration unit 132 as described above.

Other variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed invention, from a study of the drawings, the disclosure, and the appended claims.

In the claims, the word "comprising" does not exclude other elements or steps, and the indefinite article "a" or "an" does not exclude a plurality.

A single unit or device may fulfill the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.

The processes performed by one or several units or devices (e.g., determination of baseline, configuration of radio frequency sensing, etc.) may be performed by any other number of units or devices. These processes may be implemented as program code means of a computer program and/or as dedicated hardware.

A computer program may be stored/distributed on a suitable medium, such as an optical storage medium or a solid-state medium, supplied together with or as part of other hardware; but may also be distributed in other forms, such as via the internet or other wired or wireless telecommunication systems.

Any reference signs in the claims shall not be construed as limiting the scope.

The present invention relates to an apparatus for configuring radio frequency sensing of a radio frequency sensing network comprising a network device (e.g. a luminaire), wherein the network is adapted to perform radio frequency sensing in a first and a second area separated by a physical separation. The apparatus includes a providing unit that determines a first baseline and a second baseline, wherein the first/second baselines are associated with first/second regions, respectively. The first/second baseline enables radio frequency sensing of events in the second region by the network device. The configuration unit is adapted to configure the radio frequency sensing to distinguish between events originating from the area based on the baseline. This allows the present invention to provide a device that allows more accurate and reliable radio frequency sensing in a predefined sensing area.

Claims (15)

1. An apparatus (130) for configuring radio frequency sensing of a radio frequency sensing network (100), the radio frequency sensing network (100) comprising one or more network devices (120, 121, 122, 123, 320, 321) configured to perform radio frequency sensing, wherein the network is adapted to perform radio frequency sensing in a first sensing region (101, 201, 301) and a second sensing region (102, 202, 302) separated by at least one physical separation (126, 330), wherein the apparatus (130) comprises:

A baseline determination unit (131) for determining a first baseline and a second baseline, wherein the first baseline and the second baseline are determined based on radio frequency signals received by one or more network devices (120, 121, 122, 123, 320, 321) of the network, wherein the second baseline is determined based on interactions of the received radio frequency signals with the at least one physical separation (126, 330), and wherein the first baseline is associated with a first sensing region (101, 201, 301), and wherein the second baseline is associated with a second region (102, 202, 302) and is determined such that it enables radio frequency sensing of events in the second sensing region (102, 202, 302) by the network devices (120, 121, 122, 123, 320, 321),

-a configuration unit (132) adapted to configure radio frequency sensing of the network device (120, 121, 122, 123, 320, 321) to distinguish between events originating from the first and second sensing areas (101, 102, 301, 0302) based on the first and second baselines.

2. The apparatus (130) of claim 1, wherein the first baseline is determined based on radio frequency signals received when both the first sensing region (101, 201, 301) and the second sensing region (102, 202, 302) are in a same state relative to a sensing target of radio frequency sensing performed by the network device (120, 121, 122, 123, 320, 321), and wherein the second baseline is determined based on radio frequency signals received when both the first sensing region (101, 201, 301) and the second sensing region (102, 302, 302) are in different states relative to a sensing target of radio frequency sensing performed by the network device.

3. The apparatus (130) of claim 2, wherein the sensing target refers to detection of presence/absence or activity of an object in the first (101, 201, 301) and second (102, 202, 302) regions, wherein when receiving the radio frequency signal for determining the first baseline, the state of the first (101, 201, 301) and second (102, 202, 302) sensing regions refers to a state in which the object is absent or inactive in the first (101, 20, 301) and second (102, 202, 302) regions, respectively.

4. A device (130) according to any one of claims 2 to 3, wherein the sensing target refers to detection of presence/absence or activity of an object in the first (101, 201, 301) and second (102, 202, 302) regions, wherein when receiving radio frequency signals for determining the second baseline, the state of the first (101, 201, 301) and second (102, 202, 302) sensing regions refers to a state in which an object is absent or inactive in the first region (101, 201, 301) and is present or active in the second region (102, 202, 302), respectively.

5. The apparatus (130) according to any one of the preceding claims, wherein the apparatus (130) comprises a user interface unit (133), wherein the user interface unit (130) is adapted to provide instructions to a user regarding performing specified actions in a first area (101, 201, 301) and a second area (102, 202, 302), wherein the first baseline and the second baseline are determined based on radio frequency signals received by one or more of the network devices (120, 121, 122, 123, 320, 321) of the network (100) when the user performs the actions indicated by the instructions.

6. The apparatus (130) of any one of the preceding claims, wherein to determine the second baseline, a radio frequency signal path of the acquired radio frequency signal affected by an event in a second sensing region (102, 202, 302) is determined, and wherein the second baseline is determined based on a received radio frequency signal associated with the determined radio frequency signal path.

7. The apparatus (130) of any of the preceding claims, wherein the first baseline and the second baseline are determined based on different signal characteristic ranges of the same received radio frequency signal.

8. The apparatus (130) of any of the preceding claims, wherein to determine the first baseline and the second baseline, a direction of reception of radio frequency signals received by the one or more network devices (120, 121, 122, 123, 320, 321) is determined, and wherein the first baseline and the second baseline are determined based on radio frequency signals acquired from directions associated with a first sensing region (101, 201, 301) and a second sensing region (102, 202, 302), respectively.

9. The apparatus (130) of any of the preceding claims, wherein the first baseline and the second baseline are determined based on the same received radio frequency signal.

10. The apparatus (130) of any one of the preceding claims, wherein the configuration unit (132) is adapted to configure the radio frequency sensing such that the distinction between events originating from the first area (101, 201, 301) and the second area (102, 302) is based on processing instructions regarding the processing of radio frequency signals acquired by one of the network devices (120, 121, 122, 123, 320, 321) of the network (100) during radio frequency sensing with the first baseline and the second baseline.

11. The apparatus (130) of claim 10, wherein the processing instructions refer to filtering one of the first baseline and/or the second baseline from a radio frequency signal received by the radio frequency sensing network (100) for distinguishing between events originating from a first sensing region (101, 210, 301) and a second sensing region (102, 202, 302).

12. The apparatus (130) according to any one of the preceding claims, wherein the configuration unit (132) is further adapted to configure the functionality of the radio frequency sensing network (100) for sensing events in the second sensing area (102, 202, 302) based on a predetermined set of rules.

13. A network (100) comprising one or more network devices (120, 121, 122, 123, 320, 321) adapted to perform radio frequency sensing, wherein the network (100) is adapted to perform radio frequency sensing in a first sensing region (101, 201, 301) and a second sensing region (102, 202, 302) separated by at least one physical separation (126, 330), wherein radio frequency sensing of the network devices (120, 121, 122, 123, 320, 321) is configured to be distinguished by the apparatus (130) according to any one of claims 1 to 12 between events originating from the first sensing region (101, 201, 301) and the second sensing region (102, 202, 302) based on the first baseline and the second baseline.

14. A method (400) for configuring radio frequency sensing of a radio frequency sensing network (100), the radio frequency sensing network (100) comprising one or more network devices (120, 121, 122, 123, 320, 321) configured to perform radio frequency sensing, wherein the network (100) is adapted to perform radio frequency sensing in a first sensing region (101, 301) and a second sensing region (102, 302) separated by at least one physical separation (126, 330), wherein the method comprises:

determining (410) a first baseline and a second baseline, wherein the first baseline and the second baseline are determined based on radio frequency signals received by one or more network devices (120, 121, 122, 123, 320, 321) of the network (100), wherein the second baseline is determined based on interactions of the received radio frequency signals with the at least one physical separation (126, 330), and wherein the first baseline is associated with a first sensing region (101, 301), and wherein the second baseline is associated with a second region (102, 302) and is determined such that it enables radio frequency sensing of events in a second sensing region by the network devices,

-configuring (420) radio frequency sensing of the network device to distinguish between events originating from a first sensing region (101, 301) and a second sensing region (102, 302) based on the first baseline and the second baseline.

15. A computer program product for configuring radio frequency sensing of a radio frequency sensing network (100), wherein the computer program product comprises program code means for causing an apparatus (130) according to claim 1 to perform the method according to claim 14.