Wireless communication method and device

Abstract

The embodiment of the present application provides a method and device for wireless communication, and designs a non-trigger-based (non-TB) perception measurement scheme, which can realize unidirectional perception measurement and / or bidirectional perception measurement. The wireless communication method includes: a first device sends a data-free physical layer protocol data unit to a second device to declare NDPA; wherein the NDPA includes first information, and the first information is used to indicate one of the following: unidirectional sending of a data-free physical layer protocol data unit NDP or bidirectional sending of NDP; the device sending the NDPA sends NDP first or the device receiving the NDPA sends NDP first; unidirectional sending of NDP, and the device sending the NDPA sends NDP, and the device receiving the NDPA does not send NDP; bidirectional sending of NDP, and the device sending the NDPA sends NDP first, and the device receiving the NDPA sends NDP later; bidirectional sending of NDP, and the device sending the NDPA sends NDP first, and the device receiving the NDPA sends NDP later; bidirectional sending of NDP, and the device receiving the NDPA sends NDP first, and the device sending the NDPA sends NDP later; unidirectional sending of NDP, and the device sending the NDPA does not send NDP, and the device receiving the NDPA sends NDP later.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of communications, and more specifically, to a method and device for wireless communications. Background Art

[0002] Wireless Local Area Networks (WLAN) sensing refers to methods and applications for sensing people or objects in the environment by measuring changes in WLAN signals scattered and / or reflected by people or objects. Non-trigger Based (non-TB) sensing measurement is to perform ranging between a pair of devices (Initiating Station (ISTA) and Responding Station (RSTA)). However, how to implement non-TB sensing measurement is an urgent problem to be solved. Contents of the Invention

[0003] The embodiments of the present application provide a method and device for wireless communication, which can implement non-TB perception measurement and improve the flexibility of perception measurement while complying with pairwise perception measurement.

[0004] In a first aspect, a wireless communication method is provided, the method comprising:

[0005] The first device sends the NDPA to the second device;

[0006] The NDPA includes first information, and the first information is used to indicate one of the following:

[0007] Send NDP unidirectionally or bidirectionally;

[0008] The device sending the NDPA sends the NDP first or the device receiving the NDPA sends the NDP first;

[0009] NDP is sent unidirectionally, and the device sending the NDPA sends the NDP, while the device receiving the NDPA does not send the NDP;

[0010] NDP is sent bidirectionally, and the device sending the NDPA sends the NDP first, and the device receiving the NDPA sends the NDP later;

[0011] NDP is sent bidirectionally, and the device receiving the NDPA sends the NDP first, and the device sending the NDPA sends the NDP later;

[0012] NDP is sent unidirectionally, and the device sending the NDPA does not send NDP, while the device receiving the NDPA sends NDP.

[0013] In a second aspect, a wireless communication method is provided, the method comprising:

[0014] The second device receives the NDPA sent by the first device;

[0015] The NDPA includes first information, and the first information is used to indicate one of the following:

[0016] Send NDP unidirectionally or bidirectionally;

[0017] The device sending the NDPA sends the NDP first or the device receiving the NDPA sends the NDP first;

[0018] NDP is sent unidirectionally, and the device sending the NDPA sends the NDP, while the device receiving the NDPA does not send the NDP;

[0019] NDP is sent bidirectionally, and the device sending the NDPA sends the NDP first, and the device receiving the NDPA sends the NDP later;

[0020] NDP is sent bidirectionally, and the device receiving the NDPA sends the NDP first, and the device sending the NDPA sends the NDP later;

[0021] NDP is sent unidirectionally, and the device sending the NDPA does not send NDP, while the device receiving the NDPA sends NDP.

[0022] According to a third aspect, a wireless communication device is provided, for executing the method according to the first aspect.

[0023] Specifically, the wireless communication device includes a functional module for executing the method in the above-mentioned first aspect.

[0024] In a fourth aspect, a wireless communication device is provided, for executing the method in the second aspect.

[0025] Specifically, the wireless communication device includes a functional module for executing the method in the above-mentioned second aspect.

[0026] In a fifth aspect, a wireless communication device is provided, comprising a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in any one of the first to second aspects above.

[0027] In a sixth aspect, a device is provided for implementing the method in any one of the first to second aspects above.

[0028] Specifically, the apparatus includes: a processor, configured to call and run a computer program from a memory, so that a device equipped with the apparatus executes the method in any one of the first to second aspects described above.

[0029] In a seventh aspect, a computer-readable storage medium is provided for storing a computer program, wherein the computer program enables a computer to execute the method in any one of the first to second aspects above.

[0030] In an eighth aspect, a computer program product is provided, comprising computer program instructions, wherein the computer program instructions enable a computer to execute the method in any one of the first to second aspects above.

[0031] In a ninth aspect, a computer program is provided, which, when executed on a computer, enables the computer to execute the method in any one of the first to second aspects above.

[0032] Through the above technical solution, for unidirectional NDP sending, the device sending NDP can be indicated by NDPA, and for bidirectional NDP sending, the order of sending NDP can be indicated by NDPA. Thus, non-TB perception measurement can be realized, and the flexibility of perception measurement is improved while complying with paired perception measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of a communication system architecture applied in an embodiment of the present application.

[0034] Figure 2 It is a schematic diagram of a paired perception process provided by this application.

[0035] Figure 3 It is a schematic diagram of a one-way LMR provided in this application.

[0036] Figure 4 It is a schematic diagram of a bidirectional LMR provided by the present application.

[0037] Figure 5 It is a schematic flowchart of a wireless communication method provided according to an embodiment of the present application.

[0038] Figure 6 It is a schematic diagram of an NDPA frame format provided according to an embodiment of the present application.

[0039] Figures 7 to 11 They are respectively schematic diagrams of sending NDPA and NDP according to the embodiments of the present application.

[0040] Figures 12 to 15They are respectively schematic diagrams of reporting perception reports provided according to the embodiments of the present application.

[0041] Fig.16 It is a schematic diagram of a perception establishment request frame format provided according to an embodiment of the present application.

[0042] Fig.17 It is a schematic diagram of a perception establishment response frame format provided according to an embodiment of the present application.

[0043] Fig.18 It is a schematic diagram of a perception initiation request frame format provided according to an embodiment of the present application.

[0044] Fig.19 It is a schematic diagram of a perception initiation response frame format provided according to an embodiment of the present application.

[0045] Figures 20 to 23 They are respectively schematic diagrams of sending NDPA and NDP according to the embodiments of the present application.

[0046] Figures 24 to 26 They are respectively schematic diagrams of reporting perception reports provided according to the embodiments of the present application.

[0047] Figures 27 to 29 They are respectively schematic diagrams of perception establishment provided according to the embodiments of the present application.

[0048] Fig.30 It is a schematic diagram of a perception report frame format provided according to an embodiment of the present application.

[0049] Fig.31 It is a schematic block diagram of a wireless communication device provided according to an embodiment of the present application.

[0050] Fig.32 It is a schematic block diagram of a wireless communication device provided according to an embodiment of the present application.

[0051] Fig.33 It is a schematic block diagram of a communication device provided according to an embodiment of the present application.

[0052] Fig.34 It is a schematic block diagram of a device provided according to an embodiment of the present application.

[0053] Fig.35 It is a schematic block diagram of a communication system provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0054] The following will describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. For the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0055] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi) or other communication systems.

[0056] For example, the communication system 100 used in the embodiment of the present application is as follows: Figure 1 The communication system 100 may include an access point station (AP STA) 110 and a non-access point station (Non-AP STA) 120 that accesses the network through the AP STA 110.

[0057] In some embodiments, AP STA 110 and / or Non-AP STA 120 can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; can also be deployed on the water surface (such as a ship); can also be deployed in the air (for example, on an airplane, balloon, and satellite, etc.).

[0058] In the embodiment of the present application, the Non-AP STA 120 may be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) device, an augmented reality (AR) device, a wireless device in industrial control, a wireless device in self driving, a wireless device in remote medical, a wireless device in a smart grid, a wireless device in transportation safety, a wireless device in a smart city, or a wireless device in a smart home, etc.

[0059] As an example but not limitation, in the embodiment of the present application, Non-AP STA 120 can also be a wearable device. Wearable devices can also be called wearable smart devices, which are a general term for wearable devices that use wearable technology to intelligently design and develop wearable devices for daily wear, such as glasses, gloves, watches, clothing and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also realize powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include full-featured, large-sized, and independent of smartphones to achieve complete or partial functions, such as smart watches or smart glasses, as well as those that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0060] Figure 1 An AP STA and two Non-AP STAs are exemplarily shown. In some embodiments, the communication system 100 may include multiple AP STAs and other numbers of Non-AP STAs, which is not limited in the embodiments of the present application.

[0061] It should be understood that the device with communication function in the network / system in the embodiment of the present application can be referred to as a communication device. Figure 1 Taking the communication system 100 shown as an example, the communication equipment may include an AP STA 110 and a Non-AP STA 120 with communication functions. The AP STA 110 and the Non-AP STA 120 may be the specific devices described above and will not be repeated here. The communication equipment may also include other devices in the communication system 100, such as a network controller, a gateway and other network entities, which is not limited in the embodiments of the present application.

[0062] It should be understood that the terms "system" and "network" are often used interchangeably in this article. The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0063] It should be understood that the "indication" mentioned in the embodiments of the present application can be a direct indication, an indirect indication, or an indication of an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association relationship between A and B.

[0064] The terms used in the implementation mode of this application are only used to explain the specific embodiments of this application, and are not intended to limit this application. The terms "first", "second", "third" and "fourth" in the specification and claims of this application and the drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0065] In the description of the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between two items, or an association relationship between the two items, or a relationship between indication and being indicated, configuration and being configured, and the like.

[0066] In the embodiments of the present application, "pre-definition" or "pre-configuration" can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in a device (for example, including STA and network equipment), and the present application does not limit the specific implementation method. For example, pre-definition can refer to what is defined in the protocol.

[0067] In the embodiments of the present application, the "protocol" may refer to a standard protocol in the communication field, for example, it may include a WiFi protocol and related protocols used in future WiFi communication systems, and the present application does not limit this.

[0068] To facilitate understanding of the technical solutions of the embodiments of the present application, the relevant terms of the present application are explained below.

[0069] The Association Identifier (AID) is used to identify a terminal after establishing an association with an access point.

[0070] Unassociation Identifier (UID) is used to identify a terminal that has not established an association with an access point.

[0071] Media Access Control (MAC). Often used as the abbreviation of MAC address, which is the media access control address.

[0072] A transmission opportunity (TXOP) refers to a period of time during which a terminal having the transmission opportunity can actively initiate one or more transmissions.

[0073] Burst signal generally refers to a short period of time during which one or more signals are sent.

[0074] A burst signal group refers to a combination of one or more burst signals. The burst signals in the same burst signal group generally have some common characteristics.

[0075] To facilitate understanding of the technical solutions of the embodiments of the present application, the technical solutions of the present application are described in detail below through specific embodiments. The following related technologies can be arbitrarily combined with the technical solutions of the embodiments of the present application as optional solutions, and they all belong to the protection scope of the embodiments of the present application. The embodiments of the present application include at least part of the following contents.

[0076] WLAN Sensing senses people or objects in the environment by measuring the changes in WLAN signals scattered and / or reflected by people or objects. In other words, WLAN Sensing measures and senses the surrounding environment through wireless signals, so that it can complete many functions such as detecting whether there is intrusion, movement, fall, etc. in the room, gesture recognition, and spatial three-dimensional image creation.

[0077] To facilitate understanding of the technical solutions of the embodiments of the present application, the WLAN perception related to the present application is described below.

[0078] WLAN devices participating in WLAN awareness may have the following roles:

[0079] Sensing Initiator: a device that initiates a sensing session and wants to obtain the sensing results.

[0080] Sensing Responder: a non-SensingInitiator device that participates in a sensing session.

[0081] Sensing Transmitter: a device that initiates a sensing illumination signal.

[0082] Sensing Receiver: a device that receives a sensing illumination signal;

[0083] Sensing processor: a device that processes the results of sensing measurements;

[0084] The sensing participant device includes a sensing session initiating device, a sensing signal sending device and a sensing signal receiving device.

[0085] A WLAN terminal may have one or more roles in a perception session. For example, a perception initiating device may be only a perception initiating device, a perception sending device, a perception receiving device, or both a perception sending device and a perception receiving device.

[0086] In some embodiments, there may be multiple sensing types. For example, a sensing type based on channel state information (CSI), i.e., CSI-based Sensing, is a sensing type that obtains a sensing measurement result by processing the CSI of a received sensing measurement signal. Another example is a sensing type based on a reflected signal, i.e., Radar-based Sensing, is a sensing type that obtains a sensing measurement result by processing a reflected signal of a received sensing measurement signal.

[0087] A WLAN awareness session includes one or more of the following stages: session establishment, awareness measurement, awareness reporting, and session termination.

[0088] Session establishment phase: establish a perception session, determine the perception session participants and their roles (including the perception sending device and the perception receiving device), determine the operation parameters related to the perception session, and optionally exchange the parameters between terminals.

[0089] Perception measurement phase: Perception measurement is implemented, and the perception sending device sends a perception signal to the perception receiving device.

[0090] Perception reporting stage: Reporting measurement results. Depending on the application scenario, the perception receiving device may need to report the measurement results to the perception initiating device.

[0091] Session termination phase: The terminal stops measuring and terminates the perception session.

[0092] When establishing a perception session, the terminals may need to negotiate perception roles and operating parameters one by one, or the terminals may declare their own roles and operating parameters (eg, through beacon frames or other special frames).

[0093] The data volume of the perception measurement results is usually relatively large. For example, the channel state information (CSI) data of a measurement may reach 4K to 40K bits. In order to reduce the network load caused by reporting the perception measurement results, a measurement threshold can be set. When the change between the current perception measurement result and the previous perception measurement result is less than the measurement threshold, the perception receiving device reports the perception measurement result, otherwise the perception measurement result is not reported.

[0094] The perception initiator device can set multiple groups of measurement parameters. One group of measurement parameters (identified by a measurement setup ID, which can be equivalent to a burst group) can be applied to multiple measurements (identified by a measurement instance ID, which can be equivalent to a burst).

[0095] Perception measurement is a core step of WLAN perception. However, how to configure measurement information for perception measurement is an urgent problem to be solved.

[0096] WLAN Sensing is performed in a pairwise manner and includes the following two identifiers (ID) to distinguish between setup and measurement instances:

[0097] 1) Measurement Setup ID: The Measurement Setup ID can be used to identify the attributes used in the perception measurement instance. The measurement setup is provided to each responding device during the negotiation phase. The Measurement Setup ID is set to the same value in responding programs that share the same measurement instance.

[0098] 2) Measurement Instance ID: The measurement instance ID uniquely identifies the perception measurement instance according to the measurement establishment identifier. The measurement instance ID is used to identify frames belonging to the same perception measurement instance.

[0099] It is worth noting that Figure 2 As shown, under one measurement setup ID, there may be different measurement instances, and these Measurement Instances may adopt different measurement methods, for example, different devices may participate in the measurement, different parameters may be adopted for the measurement, and so on.

[0100] like Figure 2 As shown, the perception initiator device can set multiple groups of measurement parameters, and one group of measurement parameters (identified by MeasurmentSetup ID, which can be equivalent to a burst signal group (Burst Group)) can be applied to multiple measurements (identified by Measurement Instance ID, which can be equivalent to a burst signal (Burst)).

[0101] In order to better understand the embodiments of the present application, the non-trigger-based (non-TB) ranging related to the present application is described.

[0102] Non-TB Ranging is the ranging between a pair of devices (ISTA and RSTA). In the set measurement window, ISTA initiates the measurement by Ranging null data physical layer protocol data unit announcement (NDPA) + ISTA to RSTA (I2R) null data physical layer protocol data unit (NDP), and then RSTA sends RSTA to ISTA (R2I) NDP for measurement. Depending on the settings of ISTA and RSTA, the Measurement Reporting phase can be Figure 3 One-way R2I location measurement report (Location Measurement Report, LMR), can also be Figure 4 Bidirectional LMR (R2I LMR + I2R LMR).

[0103] At present, the WLAN Sensing mechanism only proposes pair-wise sensing setup, sensing measurement, and sensing reporting. How to implement the above stages and how to design the frame structure is an urgent problem to be solved. In addition, the above non-TB Ranging is only applicable to ranging between WLAN devices and does not support WLAN Sensing defined in the 802.11bf standard. Therefore, it is necessary to design a non-TB Sensing protocol and frame structure applicable to 802.11bf based on the 802.11aznon-TB Ranging protocol.

[0104] Based on the above problems, the present application proposes a perception measurement solution. For unidirectional NDP sending, the device sending NDP can be indicated by NDPA. For bidirectional NDP sending, the order of sending NDP can be indicated by NDPA. Thus, non-TB perception measurement can be realized. Under the premise of complying with paired perception measurement, the flexibility of perception measurement is improved.

[0105] The technical solution of the present application is described in detail below through specific embodiments.

[0106] Figure 5 is a schematic flow chart of a wireless communication method 200 according to an embodiment of the present application, such as Figure 5As shown, the wireless communication method 200 may include at least part of the following contents:

[0107] S210, the first device sends an NDPA to the second device; wherein the NDPA includes first information, and the first information is used to indicate one of the following: sending NDP unidirectionally or sending NDP bidirectionally; the device sending the NDPA sends NDP first or the device receiving the NDPA sends NDP first; sending NDP unidirectionally, and the device sending the NDPA sends NDP, and the device receiving the NDPA does not send NDP; sending NDP bidirectionally, and the device sending the NDPA sends NDP first, and the device receiving the NDPA sends NDP later; sending NDP bidirectionally, and the device receiving the NDPA sends NDP first, and the device sending the NDPA sends NDP later; sending NDP unidirectionally, and the device sending the NDPA does not send NDP, and the device receiving the NDPA sends NDP;

[0108] S220: The second device receives the NDPA sent by the first device.

[0109] In an embodiment of the present application, for unidirectional sending of NDP, the device sending the NDP can be indicated by NDPA, and for bidirectional sending of NDP, the order of sending NDP can be indicated by NDPA. Thus, non-TB perception measurement can be implemented, and the flexibility of perception measurement is improved while complying with pairwise perception measurement.

[0110] In some embodiments, the first device is a sensing transmitting device (Sensing Transmitter), and the second device is a sensing receiving device (Sensing Receiver); or, the first device is a sensing receiving device (Sensing Receiver), and the second device is a sensing transmitting device (Sensing Transmitter).

[0111] In some embodiments, the first device may also be a sensing initiating device or a sensing responding device.

[0112] In some embodiments, the first information may occupy 1 bit, and may be set to 0 to indicate unidirectional transmission of the NDP, or may be set to 1 to indicate bidirectional transmission of the NDP. Alternatively, the first information may be set to 1 to indicate unidirectional transmission of the NDP, or may be set to 0 to indicate bidirectional transmission of the NDP. This application is not limited to this.

[0113] In some embodiments, when NDP is sent bidirectionally, the first information may occupy 1 bit, and setting it to 0 indicates that the device sending the NDPA sends the NDP first, and setting it to 1 indicates that the device receiving the NDPA sends the NDP first. Alternatively, setting it to 1 indicates that the device sending the NDPA sends the NDP first, and setting it to 0 indicates that the device receiving the NDPA sends the NDP first. This application does not limit this.

[0114] In some embodiments, the first information may occupy 2 bits, and is set to 00 to indicate that the NDP is sent unidirectionally, and the device sending the NDPA sends the NDP, and the device receiving the NDPA does not send the NDP; is set to 01 to indicate that the NDP is sent bidirectionally, and the device sending the NDPA sends the NDP first, and the device receiving the NDPA sends the NDP later; is set to 10 to indicate that the NDP is sent bidirectionally, and the device receiving the NDPA sends the NDP first, and the device sending the NDPA sends the NDP later; is set to 11 to indicate that the NDP is sent unidirectionally, and the device sending the NDPA does not send the NDP, and the device receiving the NDPA sends the NDP. Of course, the first information may also occupy more bits, and the above information may be indicated by setting different values ​​here, and this application is not limited to this.

[0115] In some embodiments, the first information is an NDP Order field in a frame carrying the NDPA.

[0116] In some embodiments, the frame carrying the NDPA includes a general information field and a site information field, wherein the general information field includes a first field and the NDP sequence field, the first field is used to indicate that this measurement is a non-trigger-based perception measurement, and the site information field includes a second field and a third field, the second field is used to indicate the number of spatial-time streams (spatial-time streams) of the NDP for downlink measurement, and the third field is used to indicate the number of repetitions of the long training field (Long Training Field, LTF) symbol of the NDP for downlink measurement.

[0117] In some embodiments, the first field is a trigger-based / non-trigger-based (TB / non-TB) field, and the TB / non-TB field is used to indicate that the current measurement is of TB or non-TB type. For example, the TB / non-TB field occupies 1 bit, a value of 0 indicates that the current measurement is of TB type, and a value of 1 indicates that the current measurement is of non-TB type.

[0118] In some embodiments, the second field is a downlink NDP spatial-time stream (DL N_STS) field, which occupies 4 bits and is used to indicate the number of spatial-time streams of the NDP measured downlink.

[0119] In some embodiments, the third field is a downlink repetition (DL Rep) field, which occupies 4 bits and is used to indicate the number of repetitions of the LTF symbol of the NDP measured in the downlink.

[0120] In some embodiments, the frame carrying the NDPA may be an NDPA frame or a sensing announcement frame. Of course, the frame carrying the NDPA may also be other frames, which is not limited in the present application.

[0121] In some embodiments, when the frame carrying NDPA is a perception announcement frame, such as Figure 6 As shown, a sensing control frame is defined: a new control frame, the frame type (Type) is 1, indicating that the frame is a control frame, the frame subtype (Subtype) value is 5, indicating that the frame is an extended control frame, the control frame extension (Control Frame Extension) value is 11 (can be any value from 11 to 15) indicates that the frame is a sensing control frame, and the sensing subtype (Sensing Subtype) value is 1 (can be any value from 0 to 15) indicates that the frame is a sensing announcement frame (Sensing Announcement).

[0122] like Figure 6 As shown, the general information field in the perception announcement frame includes a TB / non-TB field and an NDP sequence field.

[0123] The TB / non-TB field is used to indicate whether the current measurement is of TB or non-TB type. Optionally, it can be determined by whether there is a triggered sensing poll (TF SENS Poll).

[0124] The NDP order field occupies 2 bits. Specifically, NDP order = 00: NDP is sent unidirectionally. The device sending NDPA sends NDP, and the device receiving NDPA does not send NDP; NDP order = 01: NDP is sent bidirectionally. The device sending NDPA sends NDP first, and the device receiving NDPA sends NDP later; NDP order = 10: NDP is sent bidirectionally. The device receiving NDPA sends NDP first, and the device sending NDPA sends NDP later; or NDP order = 10 is a reserved value (reserved); NDP order = 11: NDP is sent unidirectionally. The device sending NDPA does not send NDP, and the device receiving NDPA sends NDP.

[0125] For example, during the sensing setup, if one device is set to be only a sensing transmitter and the other device is set to be only a sensing receiver, then NDP can only be sent in one direction, and the NDP sequence field is set to 00.

[0126] like Figure 6 As shown, the site information field in the perception declaration frame includes a DL N_STS field and a DL Rep field, wherein the DL N_STS field occupies 4 bits and is used to indicate the number of spatial-time streams of the NDP measured downlink; the DL Rep field occupies 4 bits and is used to indicate the number of repetitions of the LTF symbols of the NDP measured downlink.

[0127] In some embodiments, the perception measurement performed in the measurement instance corresponding to the NDPA includes at least one of the following: uplink perception measurement, downlink perception measurement, and bidirectional perception measurement.

[0128] In some embodiments, if the device is set to support both sending (TX) and receiving (RX) in the sensing setup phase, then in different measurement instances, the NDP sequence field of the NDPA frame can be used to flexibly indicate that a measurement instance only performs uplink sensing measurement, downlink sensing measurement, or bidirectional sensing measurement, etc.

[0129] In some embodiments, during the sensing measurement phase, only one-way sensing measurement (SensingMeasurement) is performed, and the sensing transmitting device (Sensing Transmitter) sends NDPA+NDP.

[0130] In some embodiments, during the sensing measurement phase, bidirectional sensing measurement (Sensing Measurement) is performed, and the device that obtains the channel first sends NDPA+NDP first.

[0131] In some embodiments, during the sensing measurement phase, bidirectional sensing measurement (Sensing Measurement) is performed, forcing the AP to send NDPA+NDP first.

[0132] In some embodiments, when the measurement instance corresponding to the NDPA is set to support two-way perception measurement during the perception establishment phase, the AP sends the NDPA. That is, when the measurement instance corresponding to the NDPA is set to support two-way perception measurement during the perception establishment phase, the AP always sends the NDPA.

[0133] In some embodiments, the measurement instance corresponding to the NDPA is set in the perception establishment phase as follows: the AP sends the NDPA, and the Non-AP STA waits for the NDPA sent by the AP. That is, a mandatory rule is set in the perception establishment phase: in the measurement instance in which the bidirectional perception measurement is set in the perception establishment phase, the AP must send the NDPA frame, and the Non-AP STA needs to wait for the NDPA frame sent by the AP, without signaling indication.

[0134] For example, Figure 7 As shown, when entering the sensing measurement phase, the Non-AP STA cannot first send an NDPA frame to start sensing measurement, but must wait for the AP to send an NDPA frame to start sensing measurement.

[0135] In some embodiments, when the measurement instance corresponding to the NDPA is set to support bidirectional sensing measurement in the sensing establishment phase, the device that first obtains the channel usage right sends the NDPA. For example, the device that first obtains the channel usage right (Contention based access) sends the NDPA first.

[0136] In some embodiments, when the measurement instance corresponding to the NDPA is set to support bidirectional perception measurement during the perception establishment phase, it can also be defaulted that the device sending the NDPA sends the NDP first, and the device receiving the NDPA sends the NDP later.

[0137] For example, Figure 8 As shown, if the AP obtains the channel use right first, the AP sends the NDPA, and the AP first sends the NDP for sensing measurement (Sensing Measurement), and then the Non-AP STA sends the NDP for sensing measurement (Sensing Measurement).

[0138] For example, Fig. 9 As shown, if the Non-AP STA obtains the channel use right first, the Non-AP STA sends the NDPA, and the Non-AP STA first sends the NDP for sensing measurement (Sensing Measurement), and then the AP sends the NDP for sensing measurement (Sensing Measurement).

[0139] It should be noted that in the above Figure 8 and Fig. 9In the default, the device sending the NDPA frame directly sends the NDP for perception measurement after the short interframe space (SIFS) time, and then the other device sends the NDP for reverse perception measurement after the SIFS time. However, the order of sending NDP is not limited to the device sending the NDPA frame sending the NDP first, and the NDP order field in the NDPA frame can also be used to indicate the order of sending the next two NDP frames.

[0140] For example, in the above Figure 8 and Fig. 9 In the embodiment, the first information may indicate that NDP is sent bidirectionally, and the device sending NDPA sends NDP first, and the device receiving NDPA sends NDP later.

[0141] For example, Fig.10 As shown, if the AP obtains the right to use the channel first, then the AP sends the NDPA. The first information can indicate: NDP is sent bidirectionally, and the device receiving the NDPA sends the NDP first, and the device sending the NDPA sends the NDP later, that is, the Non-AP STA sends the NDP first for sensing measurement (Sensing Measurement), and then the AP sends the NDP for sensing measurement (Sensing Measurement).

[0142] For example, Fig.11 As shown, if the Non-AP STA obtains the right to use the channel first, then the Non-AP STA sends the NDPA. The first information can indicate: NDP is sent bidirectionally, and the device receiving the NDPA sends the NDP first, and the device sending the NDPA sends the NDP later, that is, the AP sends the NDP first for sensing measurement (Sensing Measurement), and then the Non-APSTA sends the NDP for sensing measurement (Sensing Measurement).

[0143] In some embodiments, when the measurement instance corresponding to the NDPA is set to support bidirectional perception measurement during the perception establishment phase, the measurement instance corresponding to the NDPA is configured with second information during the perception establishment phase, wherein the second information is used to indicate that the NDPA is sent by the AP, or the second information is used to indicate that the NDPA is sent by a device that first obtains the channel use right.

[0144] In some embodiments, the second information is an NDPA sender (NDPA Sender) field in a first frame, wherein the first frame is a sensing setup request frame (Sensing Setup Request frame) or a sensing setup response frame (Sensing Setup Response frame).

[0145] In some embodiments, the first frame includes an action field, the action field includes a sensory response device information field, and the sensory response device information field includes the NDPA sender (NDPA Sender) field.

[0146] For example, when NDPA sender = 0, the device that obtains the channel use right first (whether AP or STA) sends NDPA first; when NDPA sender = 1, the AP sends the NDPA frame, and the Non-AP STA needs to wait for the NDPA frame sent by the AP. Alternatively, when NDPA sender = 1, the device that obtains the channel use right first (whether AP or STA) sends NDPA first; when NDPA sender = 0, the AP sends the NDPA frame, and the Non-AP STA needs to wait for the NDPA frame sent by the AP.

[0147] In some embodiments, when the measurement instance corresponding to the NDPA is set to support bidirectional sensing measurement in the sensing establishment phase, the AP is set to allow it to be a sensing transmitter and a sensing receiver in the sensing establishment phase, and the Non-AP STA is set to allow it to be a sensing transmitter and a sensing receiver in the sensing establishment phase. That is, if a measurement instance is set in the sensing establishment phase as: the AP can be both a sensing transmitter and a sensing receiver, then the Non-AP STA can also be both a sensing transmitter and a sensing receiver.

[0148] In some embodiments, the first device sends an NDP to the second device based on the first information, and / or the first device receives an NDP sent by the second device based on the first information.

[0149] In some embodiments, during the sensing reporting stage, only one-way sensing measurement (SensingMeasurement) is performed, the sensing initiator (Sensing Initiator) is the sensing transmitter (SensingTransmitter), and the sensing receiver (Sensing Receiver) needs to send a sensing measurement report (SensingReport) to the sensing transmitter (Sensing Transmitter).

[0150] In some embodiments, during the sensing reporting phase, only one-way sensing measurement (SensingMeasurement) is performed, the sensing initiator (Sensing Initiator) is the sensing receiver (Sensing Receiver), and the sensing receiver (Sensing Receiver) does not need to send a sensing measurement report (Sensing Report).

[0151] In some embodiments, during the sensing reporting stage, only one-way sensing measurement (SensingMeasurement) is performed, the sensing initiator (Sensing Initiator) does not participate in the sensing measurement (SensingMeasurement), and the sensing receiving device (Sensing Receiver) is a Non-AP STA. Then the Non-AP STA needs to send a sensing measurement report (Sensing Report) to the AP, and the AP then sends the sensing measurement report (Sensing Report) to the sensing initiator (Sensing Initiator).

[0152] In some embodiments, during the sensing reporting stage, only one-way sensing measurement (SensingMeasurement) is performed, the sensing initiator (Sensing Initiator) does not participate in the sensing measurement (SensingMeasurement), and the sensing receiver (Sensing Receiver) is an AP, then the AP directly sends a sensing measurement report (Sensing Report) to the sensing initiator (Sensing Initiator).

[0153] In some embodiments, during the sensing reporting phase, bidirectional sensing measurement (SensingMeasurement) is performed, the sensing initiator (Sensing Initiator) is an AP and participates in the sensing measurement (SensingMeasurement), then the Non-AP STA needs to send a sensing measurement report (Sensing Report) to the AP.

[0154] In some embodiments, during the sensing reporting phase, bidirectional sensing measurement (SensingMeasurement) is performed, and the sensing initiator (Sensing Initiator) is a Non-AP STA and participates in the sensing measurement (Sensing Measurement), then the AP needs to send a sensing measurement report (Sensing Report) to the STA.

[0155] In some embodiments, during the sensing reporting stage, bidirectional sensing measurement (SensingMeasurement) is performed, and the sensing initiator (Sensing Initiator) does not participate in the sensing measurement (SensingMeasurement). Then the Non-AP STA needs to send a sensing measurement report (Sensing Report) to the AP, and the AP then sends the sensing measurement report (Sensing Report) to the sensing initiator (Sensing Initiator).

[0156] In some embodiments, the sensing measurement results are sent to the device that sent the sensing setup request (Sensing SetupRequest):

[0157] If the Sensing Initiator participates in the Sensing Measurement, the Sensing Initiator sends a Sensing Setup Request, and the sensing measurement results are fed back to the Sensing Initiator;

[0158] If the Sensing Initiator does not participate in the Sensing Measurement, the AP sends the Sensing Setup Request on behalf of the AP. The sensing measurement results are sent to the AP and then fed back to the Sensing Initiator.

[0159] In some embodiments, when the sensing initiator does not participate in the sensing measurement, the sensing initiator obtains the sensing measurement result through the AP. For example, the sensing initiator is a Non-AP STA, and the sensing initiator triggers the establishment of a sensing session between the AP and at least one Non-AP STA.

[0160] In some embodiments, when the perception initiating device does not participate in the perception measurement, when the first device is an AP and the second device is a Non-AP STA, the first device receives the perception measurement result sent by the second device.

[0161] In some embodiments, when the sensing initiating device does not participate in sensing measurement, and when the first device is an AP and the second device is a Non-AP STA, the first device receives a sensing initiating request (Sensing Initiating Request) sent by the sensing initiating device; the first device sends a sensing establishment request to at least one Non-AP STA, wherein the at least one Non-AP STA includes the second device; the first device receives a sensing establishment response sent by the at least one Non-AP STA; and the first device sends a sensing initiating response (Sensing Initiating Response) to the sensing initiating device.

[0162] In some embodiments, when the perception initiating device does not participate in the perception measurement, when the first device is a Non-AP STA and the second device is an AP, the first device sends the perception measurement result to the second device.

[0163] In some embodiments, when the perception initiating device does not participate in the perception measurement, and when the first device is a Non-APSTA and the second device is an AP, the first device receives a perception establishment request sent by the second device; and the first device sends a perception establishment response to the second device.

[0164] For example, if the sensing initiator does not participate in the sensing measurement, then the sensing initiator is a Non-AP STA. Fig.12 and Fig.13 As shown, first STA 2 needs to send the sensing measurement result (Sensing Report) to AP, and then AP sends the sensing measurement result (Sensing Report) to the sensing initiating device (STA 1).

[0165] In some embodiments, when the perception initiating device participates in the perception measurement and the first device is the perception initiating device, the first device receives the perception measurement result sent by the second device. Further, the first device does not send the perception measurement result to the second device.

[0166] In some embodiments, when a perception initiating device participates in perception measurement and the first device is the perception initiating device, the first device sends a perception establishment request to at least one Non-AP STA, wherein the at least one Non-AP STA includes the second device; and the first device receives a perception establishment response sent by the at least one Non-AP STA.

[0167] In some embodiments, when a perception initiating device participates in the perception measurement and the second device is the perception initiating device, the first device sends the perception measurement result to the second device.

[0168] In some embodiments, when the perception initiating device participates in the perception measurement and the second device is the perception initiating device, the first device receives a perception establishment request sent by the second device; and the first device sends a perception establishment response to the second device.

[0169] For example, if the sensing initiator (Sensing Initiator) participates in the sensing measurement (SensingMeasurement), such as Fig.14 As shown, if the AP is a Sensing Initiator, the STA needs to send a sensing measurement result (Sensing Report) to the AP, but the AP does not need to send a sensing measurement result (Sensing Report) to the STA.

[0170] For example, if the sensing initiator (Sensing Initiator) participates in the sensing measurement (SensingMeasurement), such as Fig.15 As shown, if the STA is a Sensing Initiator, the AP needs to send a sensing measurement result (Sensing Report) to the STA, but the STA does not need to send a sensing measurement result (Sensing Report) to the AP.

[0171] In some embodiments, the perception establishment request is sent via a perception establishment request frame, wherein the perception establishment request frame includes an action field, the action field includes a perception response device information field, the perception response device information field includes an NDPA sender field, and the value of the NDPA sender field is used to indicate that the NDPA is sent by the AP, or the value of the NDPA sender field is used to indicate that the NDPA is sent by a device that first obtains the channel usage right.

[0172] For example, Fig.16As shown in the figure, a sensing action frame (Sensing Action frame) is defined: a new action frame (Action frame) or an action frame without confirmation (Action No Ack), the action category (Category) is 4, indicating that the frame is a public action frame (Public Action frame), the public action subclass (Public Acton Field) value is 46, indicating that the frame is a sensing action frame (any value in the range of 46 to 255 can be used to indicate that the frame is a sensing action frame), and the sensing subclass (Sensing Subtype) value is 2 (any value in the range of 0 to 255 can be used) indicates that it is a sensing setup request frame (Sensing Setup Request frame).

[0173] like Fig.16As shown in the figure, in the sensing establishment request frame, the measurement setup ID field: measurement setup ID, generated by the AP. Partial Timing Synchronization Function (TSF) Timer: recommended start time of the first burst signal, all 0s indicate no recommendation. Burst Period field: recommended time interval between two adjacent burst signals, in units of 100ms, 0 indicates no recommendation. Burst Duration field: recommended time occupied by a burst signal, 4 indicates 1ms, 5 indicates 2ms, 6 indicates 4ms, 7 indicates 8ms, 8 indicates 16ms, 9 indicates 32ms, 10 indicates 64ms, 11 indicates 128ms, and other values ​​are reserved. AID / UID field: ID of the sensing responder device, 0 is the AID of the associated AP. Immediate Report field: When the Sensing Responder participates in the measurement as a Sensing Receiver, whether the measurement results need to be reported immediately; when the Sensing Responder participates in the measurement as a Sensing Transmitter, it is a reserved field. NDPA Sender field: If both devices in a measurement instance support the role of Sensing Transmitter, then the NDPA Sender field is set to 0 to indicate that any Sensing Transmitter (whether AP or STA) that obtains the right to use the channel first can send NDPA frames to start sensing measurements during the measurement phase; the NDPA Sender field is set to 1 to indicate that only APs can send NDPA frames to start sensing measurements during the measurement phase. Format and Bandwidth field: When participating in the measurement as a sensing transmitter, this field exists and indicates the recommended physical layer protocol data unit (PPDU) format and bandwidth.

[0174] In some embodiments, the perception establishment response is sent via a perception establishment response frame, wherein the perception establishment response frame includes an action field, the action field includes a perception response device information field, the perception response device information field includes an NDPA sender field, and the value of the NDPA sender field is used to indicate that the NDPA is sent by the AP, or the value of the NDPA sender field is used to indicate that the NDPA is sent by a device that first obtains the channel usage right.

[0175] For example, Fig.17 As shown in the figure, a sensing action frame is defined: a new action frame or an action no acknowledgment frame. The action category (Category) is 4, indicating that the frame is a public action frame (Public Action frame). The public action subclass (Public Acton Field) value is 46, indicating that the frame is a sensing action frame (any value in the range of 46 to 255 can be used to indicate that the frame is a sensing action frame). The sensing subclass (Sensing Subtype) value is 3 (any value in the range of 0 to 255 can be used) indicates that it is a sensing setup response frame (Sensing Setup Request frame).

[0176] like Fig.17 As shown, in the sensing setup response frame, the measurement setup command (Setup Command) field: 0 means acceptance (Accept); 1 means rejection (Reject). Reason Code field: When the measurement setup command (Setup Command) value indicates acceptance, this field is a reserved value of 0. When the measurement setup command (Setup Command) field value indicates rejection, 0 means that the role indicated in the measurement setup request is not supported; 1 means that the PPDU format and bandwidth indicated in the measurement setup request are not supported; 3 to 255 are reserved. NDPA sender field: If both devices in a measurement instance (MeasurementInstance) support the role of sensing transmitter (Sensing Transmitter), then the NDPA sender field is set to 0 to indicate that any sensing transmitter (Sensing Transmitter) that obtains the channel usage right first (regardless of AP or STA) can send NDPA frames to start sensing measurement during the measurement phase (measurement phase); the NDPA sender field is set to 1 to indicate that only AP can send NDPA frames to start sensing measurement during the measurement phase (measurement phase).

[0177] In some embodiments, the sensing initiating request (Sensing Initiating Request) is sent via a sensing initiating request frame (Sensing Initiating Request frame). Fig.18 As shown in the figure, a sensing action frame is defined: a new action frame or an unacknowledged action frame (Action No Ack), the action category (Category) is 4, indicating that the frame is a public action frame (Public Action frame), the public action subclass (Public Acton Field) value is 46, indicating that the frame is a sensing action frame (any value in the range of 46 to 255 can be used to indicate that the frame is a sensing action frame), and the sensing subclass (Sensing Subtype) value is 0 (any value in the range of 0 to 255 can be used) indicates that it is a sensing init request frame (Sensing Init Request frame).

[0178] like Fig.18 As shown, in the sensing initiation request frame, the sensing subtype (SENS Subtype) field: 0 represents the sensing initiation request frame (SENS Init Request frame); 1 represents the sensing init response frame (SENS Init Response frame); 2 represents the sensing setup request frame (SENS Setup Request frame); 3 represents the sensing setup response frame (SENS Setup Response frame); 4 represents the sensing feedback request frame (SENS Feedback Response frame); 5 represents the sensing feedback response frame (SENS Feedback Response frame); 6 represents the sensing report frame (SENS Report frame); 7 to 15 are reserved. Among them, the value described in this field is only an exemplary introduction, and it can also be set to other values, as long as the value corresponding to each sensing subtype is different from the values ​​of other sensing subtypes; for example, the value 2 can represent the sensing init request frame; the value 1 can represent the sensing init response frame; for another example, the value 8 can represent the sensing init request frame; the value 15 can represent the sensing init response frame, and so on.

[0179] like Fig.18As shown, the measurement setup command (Setup Command) field: 0 means mandatory (Demand); 1 means suggestion (Suggest); 2 to 255 are reserved. The value described in this field is only an exemplary introduction, and it can also be set to other values, as long as the value corresponding to each command is different from the values ​​of other commands; for example, the value 2 can represent mandatory; the value 1 can represent suggestion; for another example, the value 8 can represent mandatory; the value 15 can represent suggestion, and so on.

[0180] like Fig.18 As shown, based on the trigger frame (TB / non-TB) field: indicates that it is recommended that the AP establish a TB or non-TB type measurement process. In one embodiment, it is set to 1 to indicate the TB type, and it is set to 0 to indicate the non-TB type. In another embodiment, it can also be set to 0 to indicate the TB type, and set to 1 to indicate the non-TB type.

[0181] like Fig.18 As shown, the Raw Report field indicates whether the AP forwards the raw measurement results reported by the sensing receiving device (Receiver). In one embodiment, it is set to 1 to indicate yes, otherwise it is set to 0. In another embodiment, it can also be set to 0 to indicate yes, otherwise it is set to 1.

[0182] like Fig.18 As shown, the reported result analysis (Analysis) field indicates whether the AP analyzes and processes the reported measurement results. In one embodiment, it is set to 1 to indicate yes, otherwise it is set to 0. In another embodiment, it can also be set to 0 to indicate yes, otherwise it is set to 1.

[0183] like Fig.18 As shown, the reporting result compression method (Compress Method) field: indicates the algorithm used by the AP to compress the reported measurement results, 0 means no compression, 1 means the rotation of the right singular matrix of the CSI matrix (Rotation of Vmatrix based on the SVD of CSI matrix), 2 means the truncated power delay profile, and 3 means the compressed beamforming feedback matrix (compressed beamforming feedbackmatrix). The value described in this field is only an exemplary introduction, and it can also be set to other values, as long as the value corresponding to each algorithm is different from the value of other algorithms.

[0184] like Fig.18As shown, the Analysis Info field indicates the parameters required by the AP to analyze the reported measurement results. If the Report Result Analysis field indicates no, this field does not exist.

[0185] like Fig.18 As shown, Application Type (Use Case KPI): indicates the type of sensing use, 0 indicates person presence detection, 1 indicates person number detection, 2 indicates person position detection, 3 indicates posture detection, 4 indicates vital sign detection, 5 indicates sleep detection, and 6 to 255 are reserved. The value described in this field is only an exemplary introduction, and it can also be set to other values, as long as the value corresponding to each type is different from the values ​​of other types.

[0186] like Fig.18 As shown in the figure, the Range Accuracy field indicates the accuracy of the distance data after the measurement result is calculated. The Velocity Accuracy field indicates the accuracy of the velocity data after the measurement result is calculated. The Angular Accuracy field indicates the accuracy of the angle data after the measurement result is calculated.

[0187] like Fig.18 As shown, the number of responders: indicates the number of perception responder information (Responder Info) fields contained in the frame. Responder Info field: indicates the perception responder information. Responder identity (AID / UID): indicates the ID of the perception responder (Responder), which is the associated identifier (AID, Associated ID) for the associated STA and the unassociated identifier (UID, Unassociated ID, UID is allocated by the AP, and the allocated space is consistent with the AID) for the unassociated STA, and 0 is the AID of the associated AP. Perception signal receiving device (Receiver): indicates whether the perception responder (Responder) participates in the measurement as a perception signal receiving device (Receiver). In one embodiment, it is set to 1 to indicate yes, otherwise it is set to 0. In another embodiment, it can also be set to 0 to indicate yes, otherwise it is set to 1.

[0188] like Fig.18As shown, the sensing sending device (Transmitter): indicates whether the sensing responding device (Responder) participates in the measurement as a sensing signal sending device (Transmitter). In one embodiment, it is set to 1 to indicate yes, otherwise it is set to 0. In another embodiment, it can also be set to 0 to indicate yes, otherwise it is set to 1.

[0189] like Fig.18 As shown, Immediate Report: indicates whether the measurement result needs to be reported immediately when the sensing responder (Responder) participates in the measurement as a sensing receiver (Receiver). In one embodiment, it is set to 1 to indicate yes, and set to 0 to indicate no.

[0190] like Fig.18 As shown, this field is a reserved field when the sensing responder (Responder) participates in the measurement as a sensing transmitter (Transmitter). Measurement threshold information (Threashold Measurement Info): Setting information based on threshold measurement.

[0191] In some embodiments, the sensing initiating response (Sensing Initiating Response) is sent via a sensing initiating response frame (Sensing Initiating Response frame). Fig.19 As shown in the figure, a sensing action frame is defined: a new action frame or an action no-acknowledgement frame, the action category (Category) is 4, indicating that the frame is a public action frame (Public Action frame), the public action subclass (Public Acton Field) value is 46, indicating that the frame is a sensing action frame (any value in the range of 46 to 255 can be used to indicate that the frame is a sensing action frame), and the sensing subclass (Sensing Subtype) value is 1 (any value in the range of 0 to 255 can be used) indicates that it is a sensing init response frame (Sensing Init Response frame).

[0192] like Fig.19 As shown, in the sensing initiation response frame, the measurement setup command (Setup Command) field: 0 means accept (Accept); 1 means reject (Reject); 2 to 255 are reserved. Among them, the value described in this field is only an exemplary introduction, and it can also be set to other values, as long as the value corresponding to each command is different from the value of other commands.

[0193] like Fig.19 As shown, the Reason Code field: When the measurement setup command (Setup Command) value indicates acceptance, this field is a reserved value of 0. When the measurement setup command (Setup Command) value indicates rejection, 0 indicates that the establishment of perception measurement as an agent is not supported; 1 to 255 are reserved; Among them, the value described in this field is only an exemplary introduction, and it can also be set to other values, as long as the value corresponding to each reason code is different from the value of other reason codes.

[0194] like Fig.19 As shown in the figure, the Measurement Setup ID field: indicates the measurement setup identifier, which can identify the measurement parameters used by the measurement instance. To ensure uniqueness within the ESS, this field value is generated by the AP. When the measurement setup command (Setup Command) value indicates acceptance, this field exists. When the measurement setup command (SetupCommand) value indicates rejection, this field may not exist or be a reserved value of 0.

[0195] like Fig.19 As shown, based on the trigger frame (TB / non-TB) field: determine the established TB or non-TB type measurement process. In one embodiment, it is set to 1 to indicate the TB type, and it is set to 0 to indicate the non-TB type. In another embodiment, it can also be set to 0 to indicate the TB type, and set to 1 to indicate the non-TB type.

[0196] like Fig.19 As shown, the Raw Report field: determines whether the AP forwards the raw measurement result reported by the sensing receiving device (Receiver). In one embodiment, it is set to 1 to indicate yes, otherwise it is set to 0. In another embodiment, it can also be set to 0 to indicate yes, otherwise it is set to 1.

[0197] like Fig.19 As shown, the reporting result analysis (Analysis) field: determines whether the AP analyzes and processes the reported measurement results. In one embodiment, it is set to 1 to indicate yes, otherwise it is set to 0. In another embodiment, it can also be set to 0 to indicate yes, otherwise it is set to 1.

[0198] like Fig.19As shown, the reporting result compression method (Compress Method) field: determines the algorithm used by the AP to compress the reported measurement results, 0 means no compression, 1 means the rotation of the right singular matrix of the CSI matrix (Rotation of Vmatrix based on the SVD of CSI matrix), 2 means the truncated power delay profile, and 3 means the compressed beamforming feedback matrix (compressed beamforming feedbackmatrix). Among them, the value described in this field is only an exemplary introduction, and it can also be set to other values, as long as the value corresponding to each algorithm is different from the value of other algorithms.

[0199] like Fig.19 As shown, Schedule Info field: time scheduling information of measurement. Partial TSF Timer: the start time of the first measurement signal, all 0s are reserved values. Burst Period: the time interval between two adjacent measurement signals, in units of 100 milliseconds (ms), 0 is a reserved value. Burst Duration: the time occupied by a measurement signal, 4 means 1ms, 5 means 2ms, 6 means 4ms, 7 means 8ms, 8 means 16ms, 9 means 32ms, 10 means 64ms, 11 means 128ms, and other values ​​are reserved. Number of Responders: indicates the number of ResponderInfo fields contained in the frame. Responder Info field: indicates the ResponderInfo field. Reason Code field: when the Setup Command value indicates acceptance, this field is a reserved value of 0. When the measurement setup command (Setup Command) value indicates rejection, 0 indicates that the set role is not supported; 1 indicates that immediate reporting is not supported; 2 indicates that the set threshold is not supported; 3 to 255 are reserved. The value described in this field is only an exemplary introduction, and it can also be set to other values, as long as the value corresponding to each reason code is different from the values ​​of other reason codes.

[0200] In some embodiments, when the measurement instance corresponding to the NDPA is set to support unidirectional perception measurement during the perception establishment phase, the NDPA is sent by the perception sending device.

[0201] Specifically, if only one-way sensing measurement is supported, it means that among the AP and the Non-AP STA, one only supports a sensing transmitter (Sensing Transmitter) and the other only supports a sensing receiver (Sensing Receiver).

[0202] In some embodiments, after the sensing transmitter obtains the channel usage right (Contention based access), it can directly send NDPA+NDP for unidirectional sensing measurement. That is, the device that sends the NDPA frame by default directly sends NDP for unidirectional sensing measurement after the SIFS time.

[0203] For example, Fig. 20 As shown in FIG. 1 , if a measurement instance (Measurement Instance) is set in the sensing setup (Sensing Setup) phase as: AP is a sensing transmitter (Sensing Transmitter) and Non-AP STA is a sensing receiver (Sensing Receiver), then the AP sends NDPA+NDP for sensing measurement (sensing measurement).

[0204] In some embodiments, after the sensing transmitting device (Sensing Transmitter) obtains the channel usage rights (Contention based access), the sensing transmitting device can directly send the NDPA, and then the sensing transmitting device and / or the sensing receiving device determines whether to send the NDP based on the first information.

[0205] In some embodiments, when the measurement instance corresponding to the NDPA is set to support unidirectional perception measurement during the perception establishment phase, and when the first information indicates that the device sending the NDPA sends an NDP and the device receiving the NDPA does not send an NDP, the first device sends an NDP to the second device.

[0206] For example, Fig.21 As shown in FIG. 1 , if a measurement instance (Measurement Instance) is set in the sensing setup (Sensing Setup) phase as: Non-AP STA is a sensing transmitter (Sensing Transmitter) and AP is a sensing receiver (Sensing Receiver), then Non-AP STA sends NDPA+NDP for sensing measurement (sensing measurement).

[0207] For example, Fig. 20 As shown, if a measurement instance (Measurement Instance) is set in the sensing setup stage as: AP is a sensing transmitter (Sensing Transmitter) and Non-AP STA is a sensing receiver (Sensing Receiver), then the AP sends an NDPA, and the first information indicates: NDP is sent unidirectionally, and the device sending the NDPA sends the NDP, and the device receiving the NDPA does not send the NDP. In this case, the AP sends the NDP for sensing measurement.

[0208] For example, Fig.21 As shown, if a measurement instance (Measurement Instance) is set in the sensing setup stage as: Non-AP STA is a sensing transmitter (Sensing Transmitter) and AP is a sensing receiver (Sensing Receiver), then the Non-AP STA sends NDPA, and the first information indicates: NDP is sent unidirectionally, and the device sending NDPA sends NDP, and the device receiving NDPA does not send NDP. In this case, the Non-APSTA sends NDP for sensing measurement.

[0209] In some embodiments, when the measurement instance corresponding to the NDPA is set to support unidirectional perception measurement during the perception establishment phase, and when the first information indicates that the device sending the NDPA does not send an NDP, and the device receiving the NDPA sends an NDP, the first device receives the NDP sent by the second device.

[0210] For example, Fig. 22 As shown, if a measurement instance (Measurement Instance) is set in the sensing setup stage as: AP is a sensing transmitter (Sensing Transmitter) and Non-AP STA is a sensing receiver (Sensing Receiver), then the AP sends an NDPA, and the first information indicates: NDP is sent unidirectionally, and the device sending the NDPA does not send the NDP, and the device receiving the NDPA sends the NDP. In this case, the Non-AP STA sends the NDP for sensing measurement.

[0211] For example, Fig.23 As shown, if a measurement instance (Measurement Instance) is set in the sensing setup stage as: Non-AP STA is a sensing transmitter (Sensing Transmitter) and AP is a sensing receiver (Sensing Receiver), then the Non-AP STA sends NDPA, and the first information indicates: NDP is sent unidirectionally, and the device sending NDPA does not send NDP, and the device receiving NDPA sends NDP. In this case, the AP sends NDP for sensing measurement.

[0212] In some embodiments, when the measurement instance corresponding to the NDPA is set to support unidirectional perception measurement during the perception establishment phase, and when the first device is the perception initiating device, the first device receives the perception measurement result sent by the second device.

[0213] In some embodiments, when the measurement instance corresponding to the NDPA is set to support unidirectional perception measurement during the perception establishment phase, and when the first device is the perception initiating device, the first device does not send the perception measurement result to the second device.

[0214] In some embodiments, when the measurement instance corresponding to the NDPA is set to support unidirectional perception measurement during the perception establishment phase, and when the second device is the perception initiating device, the first device sends the perception measurement result to the second device.

[0215] For example, Fig.24As shown in the figure, when the sensing initiator participates in the sensing measurement, for one-way sensing measurement, if the sensing transmitter (AP or STA) is the sensing initiator, the sensing receiver does not need to send a sensing report to the sensing initiator, because the sensing initiator can directly obtain the sensing result through NDP. The sensing receiver (STA or AP) needs to send a sensing report to the sensing transmitter, and the sensing transmitter can obtain the sensing result through the sensing report.

[0216] For example, Fig.25 As shown, when the sensing initiator does not participate in the sensing measurement, for the unidirectional sensing measurement, the sensing initiator is a Non-AP STA (ie, STA1), such as Fig.25 As shown, the sensing receiving device (Sensing Receiver) is a Non-AP STA (ie, STA2), then STA2 sends a sensing report (Sensing Report) to the AP, and the AP then forwards the sensing report (Sensing Report) to the Sensing Initiator (ie, STA1).

[0217] For example, Fig.26 As shown, when the sensing initiator does not participate in the sensing measurement, for the unidirectional sensing measurement, the sensing initiator is a Non-AP STA (ie, STA1), such as Fig.26 As shown, the sensing receiving device (Sensing Receiver) is an AP, then the AP sends the sensing report (Sensing Report) directly to the sensing initiating device (Sensing Initiator) (ie, STA1).

[0218] In some embodiments, when the measurement instance corresponding to the NDPA is set to support unidirectional perception measurement during the perception establishment phase, and when the first device is the perception initiating device, the first device sends a perception establishment request to the second device; the first device receives a perception establishment response sent by the second device.

[0219] In some embodiments, when the measurement instance corresponding to the NDPA is set to support unidirectional perception measurement during the perception establishment phase, and when the second device is the perception initiating device, the first device receives a perception establishment request sent by the second device; and the first device sends a perception establishment response to the second device.

[0220] In some embodiments, if only one pair of devices participates in sensing measurement, during the sensing setup phase, one of the pair of devices is the sensing initiator and the other is the sensing responder. Fig. 27 As shown, in this scenario, no matter the Sensing Initiator and the Sensing Responder are AP or STA, the Sensing Initiator sends a Sensing Setup Request frame to initiate the Sensing Setup, and then the Sensing Responder replies with a Sensing Setup Response frame to complete the Sensing Setup phase.

[0221] In some embodiments, during the Sensing Setup phase, if multiple pairs of devices participate in Sensing Measurement, and the Sensing Initiator can participate in all Sensing Measurements or Sensing Measurement Instances, it means that the Sensing Initiator is an AP. Fig.28 As shown, in this scenario, the AP (Sensing Initiator) can perform Sensing Setup with each STA (Sensing Responder 1-N) one-to-one to comply with the pairwise sensing rule.

[0222] In some embodiments, in the sensing setup phase, if multiple pairs of devices participate in sensing measurement, and the sensing initiator does not participate or participates in part of the sensing measurement or sensing measurement instance, it means that the sensing initiator is a Non-AP STA (i.e., STA1). Fig.29 As shown, in this scenario, STA1 can send a sensing initiation request frame (Sensing Initialing Request frame) to AP (i.e., sensing response device 1), allowing AP to perform one-to-one sensing establishment (Sensing Setup) with each sensing response device (Sensing Responder) (2~N or may also include Sensing Initiator) participating in the sensing measurement (Sensing Measurement). Finally, the AP feeds back the result of the Sensing Setup to the Sensing Initiator through a sensing initiating response frame (Sensing Initiating Response frame).

[0223] In some embodiments, the sensing measurement result is sent via a sensing report frame. Fig.30 As shown in the figure, a sensing action frame is defined: a new action frame or an action no acknowledgment frame, the action category (Category) is 4, indicating that the frame is a public action frame (Public Action frame), the public action subclass (Public Acton Field) value is 46, indicating that the frame is a sensing action frame (any value in the range of 46 to 255 can be used to indicate that the frame is a sensing action frame), and the sensing subclass (Sensing Subtype) value is 6 (any value in the range of 0 to 255 can be used) indicates that it is a sensing report frame (SensingReport frame).

[0224] like Fig.30 As shown, the Number of Reports field: the number of measurement results included in the frame, 0 represents 1 measurement result, and 255 represents 256 measurement results.

[0225] like Fig.30 As shown, the Raw Report field indicates whether the frame contains the raw measurement results reported by the sensing receiving device (Receiver). In one embodiment, it is set to 1 to indicate yes, otherwise it is set to 0. In another embodiment, it can also be set to 0 to indicate yes, otherwise it is set to 1.

[0226] like Fig.30 As shown, the reported result analysis (Analysis) field indicates whether the frame contains analysis processing of the reported original measurement result. In one embodiment, it is set to 1 to indicate yes, otherwise it is set to 0. In another embodiment, it can also be set to 0 to indicate yes, otherwise it is set to 1.

[0227] like Fig.30 As shown, the reporting result compression method (Compress Method) field indicates the algorithm for compressing the reported original measurement results in this frame, 0 means no compression, 1 means the rotation of the right singular matrix of the CSI matrix (Rotation of V matrix based on the SVD of CSI matrix), 2 means the truncated power delay profile, and 3 means the compressed beamforming feedback matrix (compressed beamforming feedback matrix). Among them, the value described in this field is only an exemplary introduction, and it can also be set to other values, as long as the value corresponding to each algorithm is different from the value of other algorithms.

[0228] like Fig.30As shown, the Analysis Result field: indicates the result of the analysis and processing of the reported original measurement results by the AP, such as the presence of a person detected, the number of people detected, the number of breaths of a person detected, and so on. This field exists when the Report Result Analysis field indicates that it contains the analysis and processing of the reported original measurement results, otherwise it does not exist. Measurement Result Data (Number of Reports) field: the number of measurement results contained in the frame; 0 represents 1 measurement result, 1 represents 2 measurement results, and so on, and 255 represents 256 measurement results. Control Measurement Result (Measurement Report) field: measurement result data. Control Field (Report Control) field: controls the existence of each subfield contained in the Measurement Result (Measurement Report) field. Perception signal transmitter device identifier (TX ID) field: AID / UID of the perception signal transmitter device identifier (Transmitter) corresponding to the measurement result Perception signal receiver device identifier (RX ID) field: AID / UID of the perception signal receiver device identifier (Receiver) corresponding to the measurement result Measurement instance identifier (Measurement Instance ID): Measurement instance identifier corresponding to the measurement result. Measurement timestamp (Timestamp): The time when the measurement instance occurred. Result data (Report): Measurement result data, such as CSI data.

[0229] In the embodiment of the present application, when multiple devices participate in sensing measurement, according to whether the sensing initiator participates in the subsequent sensing measurement, a mechanism is designed for the sensing initiator to directly perform a pairwise sensing establishment (Sensing Setup) with at least one sensing responder and a mechanism is designed for the sensing initiator to request the AP agent to perform a pairwise sensing establishment (Sensing Setup) with each sensing responder. Under the premise of complying with the pairwise sensing rules, the efficiency of the sensing establishment (Sensing Setup) is improved.

[0230] In an embodiment of the present application, when the device participating in the sensing measurement supports both transmission (Transmit) and reception (Receive), a bidirectional sensing measurement (Sensing Measurement) mechanism is designed, and the designed NDPA frame can also indicate whether a sensing measurement instance (Sensing Measurement Instance) performs unidirectional Sensing Measurement or bidirectional Sensing Measurement. In addition, the NDPA frame can indicate who sends the NDP in the case of unidirectional Sensing Measurement, and can also indicate the order in which the NDP is sent when performing bidirectional Sensing Measurement. The flexibility of sensing measurement is improved.

[0231] Therefore, in an embodiment of the present application, for unidirectional sending of NDP, the device sending NDP can be indicated by NDPA, and for bidirectional sending of NDP, the order of sending NDP can be indicated by NDPA. Thus, non-TB perception measurement can be realized, and the efficiency of perception establishment and the flexibility of perception measurement are improved while complying with paired perception measurement.

[0232] Combination of the above Figures 5 to 30 , describes in detail the method embodiment of the present application, and the following is combined with Figure 31 to Figure 32 , the device embodiments of the present application are described in detail. It should be understood that the device embodiments and the method embodiments correspond to each other, and similar descriptions can refer to the method embodiments.

[0233] Fig.31 1 shows a schematic block diagram of a wireless communication device 300 according to an embodiment of the present application. The wireless communication device 300 is a first device, such as Fig.31 As shown, the wireless communication device 300 includes:

[0234] The communication unit 310 is configured to send the NDPA to the second device;

[0235] The NDPA includes first information, and the first information is used to indicate one of the following:

[0236] Send NDP unidirectionally or bidirectionally;

[0237] The device sending the NDPA sends the NDP first or the device receiving the NDPA sends the NDP first;

[0238] NDP is sent unidirectionally, and the device sending the NDPA sends the NDP, while the device receiving the NDPA does not send the NDP;

[0239] NDP is sent bidirectionally, and the device sending the NDPA sends the NDP first, and the device receiving the NDPA sends the NDP later;

[0240] NDP is sent bidirectionally, and the device receiving the NDPA sends the NDP first, and the device sending the NDPA sends the NDP later;

[0241] NDP is sent unidirectionally, and the device sending the NDPA does not send NDP, while the device receiving the NDPA sends NDP.

[0242] In some embodiments, the first information is an NDP sequence field in a frame carrying the NDPA.

[0243] In some embodiments, the frame carrying the NDPA includes a general information field and a site information field, wherein the general information field includes a first field and the NDP sequence field, the first field is used to indicate that this measurement is a non-trigger-based perception measurement, and the site information field includes a second field and a third field, the second field is used to indicate the number of space-time streams of the NDP for downlink measurement, and the third field is used to indicate the number of repetitions of the long training field LTF symbol of the NDP for downlink measurement.

[0244] In some embodiments, the perception measurement performed in the measurement instance corresponding to the NDPA includes at least one of the following: uplink perception measurement, downlink perception measurement, and bidirectional perception measurement.

[0245] In some embodiments, when the measurement instance corresponding to the NDPA is set to support bidirectional perception measurement during the perception establishment phase, the NDPA is sent by the access point AP.

[0246] In some embodiments, the measurement instance corresponding to the NDPA is set in the perception establishment phase as follows:

[0247] The AP sends the NDPA, and the non-AP STA waits for the NDPA sent by the AP.

[0248] In some embodiments, when the measurement instance corresponding to the NDPA is set to support bidirectional perception measurement during the perception establishment phase, the NDPA is sent by the device that first obtains the channel use right.

[0249] In some embodiments, when the measurement instance corresponding to the NDPA is set to support bidirectional perception measurement during the perception establishment phase, the measurement instance corresponding to the NDPA is configured with second information during the perception establishment phase, wherein the second information is used to indicate that the NDPA is sent by the AP, or the second information is used to indicate that the NDPA is sent by a device that first obtains the channel use right.

[0250] In some embodiments, the second information is an NDPA sender field in a first frame, wherein the first frame is a sensing establishment request frame or a sensing establishment response frame.

[0251] In some embodiments, the first frame includes an action field, the action field includes a sensory response device information field, and the sensory response device information field includes the NDPA sender field.

[0252] In some embodiments, the AP is configured to allow the AP to be a sensing sending device and a sensing receiving device during the sensing establishment phase, and the Non-AP STA is configured to allow the AP to be a sensing sending device and a sensing receiving device during the sensing establishment phase.

[0253] In some embodiments, the communication unit 310 is used to send the NDP to the second device according to the first information, and / or, the communication unit 310 is used to receive the NDP sent by the second device according to the first information.

[0254] In some embodiments, when the perception initiating device does not participate in the perception measurement, the perception initiating device obtains the perception measurement result through the AP.

[0255] In some embodiments, the awareness initiating device is a Non-AP STA, and the awareness initiating device triggers establishment of an awareness session between the AP and at least one Non-AP STA.

[0256] In some embodiments, when the first device is an AP and the second device is a Non-AP STA, the communication unit 310 is configured to receive a sensing measurement result sent by the second device.

[0257] In some embodiments, the communication unit 310 is used to receive a perception initiation request sent by the perception initiation device;

[0258] The communication unit 310 is configured to send a perception establishment request to at least one Non-AP STA, wherein the at least one Non-AP STA includes the second device;

[0259] The communication unit 310 is used to receive a sensing establishment response sent by the at least one Non-AP STA;

[0260] The communication unit 310 is used to send a perception initiation response to the perception initiation device.

[0261] In some embodiments, when the first device is a Non-AP STA and the second device is an AP, the communication unit 310 is configured to send the sensing measurement result to the second device.

[0262] In some embodiments, the communication unit 310 is used to receive a sense establishment request sent by the second device;

[0263] The communication unit 310 is configured to send a sensing establishment response to the second device.

[0264] In some embodiments, when a perception initiating device participates in the perception measurement and the first device is the perception initiating device, the communication unit 310 is configured to receive the perception measurement result sent by the second device.

[0265] In some embodiments, the communication unit 310 is configured not to send the perception measurement result to the second device.

[0266] In some embodiments, the communication unit 310 is used to send a sense establishment request to at least one Non-AP STA, wherein the at least one Non-AP STA includes the second device;

[0267] The communication unit 310 is used to receive a sensing establishment response sent by the at least one Non-AP STA.

[0268] In some embodiments, when the perception initiating device participates in the perception measurement and the second device is the perception initiating device, the communication unit 310 is configured to send the perception measurement result to the second device.

[0269] In some embodiments, the communication unit 310 is used to receive a sense establishment request sent by the second device;

[0270] The communication unit 310 is configured to send a sensing establishment response to the second device.

[0271] In some embodiments, the perception establishment request is sent via a perception establishment request frame, wherein the perception establishment request frame includes an action field, the action field includes a perception response device information field, the perception response device information field includes an NDPA sender field, and the value of the NDPA sender field is used to indicate that the NDPA is sent by the AP, or the value of the NDPA sender field is used to indicate that the NDPA is sent by a device that first obtains the channel usage right.

[0272] In some embodiments, the perception establishment response is sent via a perception establishment response frame, wherein the perception establishment response frame includes an action field, the action field includes a perception response device information field, the perception response device information field includes an NDPA sender field, and the value of the NDPA sender field is used to indicate that the NDPA is sent by the AP, or the value of the NDPA sender field is used to indicate that the NDPA is sent by a device that first obtains the channel usage right.

[0273] In some embodiments, when the measurement instance corresponding to the NDPA is set to support unidirectional perception measurement during the perception establishment phase, the NDPA is sent by the perception sending device.

[0274] In some embodiments, when the first information indicates that the device sending the NDPA sends the NDP, and the device receiving the NDPA does not send the NDP, the communication unit 310 is used to send the NDP to the second device.

[0275] In some embodiments, when the first device is the perception initiating device, the communication unit 310 is configured to receive the perception measurement result sent by the second device.

[0276] In some embodiments, when the first information indicates that the device sending the NDPA does not send an NDP, and the device receiving the NDPA sends an NDP, the communication unit 310 is used to receive the NDP sent by the second device.

[0277] In some embodiments, when the first device is the perception initiating device, the communication unit 310 is configured not to send the perception measurement result to the second device.

[0278] In some embodiments, when the second device is the perception initiating device, the communication unit 310 is configured to send the perception measurement result to the second device.

[0279] In some embodiments, the communication unit 310 is used to send a sense establishment request to the second device;

[0280] The communication unit 310 is used to receive a sensing establishment response sent by the second device.

[0281] In some embodiments, the communication unit 310 is used to receive a sense establishment request sent by the second device;

[0282] The communication unit 310 is configured to send a sensing establishment response to the second device.

[0283] In some embodiments, the first device is a sensory sending device, and the second device is a sensory receiving device; or,

[0284] The first device is a perceptual receiving device, and the second device is a perceptual sending device.

[0285] In some embodiments, the communication unit may be a communication interface or a transceiver, or an input / output interface of a communication chip or a system on chip.

[0286] It should be understood that the wireless communication device 300 according to the embodiment of the present application may correspond to the first device in the method embodiment of the present application, and the above and other operations and / or functions of each unit in the wireless communication device 300 are respectively to implement Figures 5 to 30 For the sake of brevity, the corresponding process of the first device in the method 200 is not repeated here.

[0287] Fig.32 400 is a schematic block diagram of a wireless communication device according to an embodiment of the present application. The wireless communication device 400 is a second device, such as Fig.32 As shown, the wireless communication device 400 includes:

[0288] The communication unit 410 is configured to receive the NDPA sent by the first device;

[0289] The NDPA includes first information, and the first information is used to indicate one of the following:

[0290] Send NDP unidirectionally or bidirectionally;

[0291] The device sending the NDPA sends the NDP first or the device receiving the NDPA sends the NDP first;

[0292] NDP is sent unidirectionally, and the device sending the NDPA sends the NDP, while the device receiving the NDPA does not send the NDP;

[0293] NDP is sent bidirectionally, and the device sending the NDPA sends the NDP first, and the device receiving the NDPA sends the NDP later;

[0294] NDP is sent bidirectionally, and the device receiving the NDPA sends the NDP first, and the device sending the NDPA sends the NDP later;

[0295] NDP is sent unidirectionally, and the device sending the NDPA does not send NDP, while the device receiving the NDPA sends NDP.

[0296] In some embodiments, the first information is an NDP sequence field in a frame carrying the NDPA.

[0297] In some embodiments, the frame carrying the NDPA includes a general information field and a site information field, wherein the general information field includes a first field and the NDP command field, the first field is used to indicate that this measurement is a non-trigger-based perception measurement, and the site information field includes a second field and a third field, the second field is used to indicate the number of space-time streams of the NDP for downlink measurement, and the third field is used to indicate the number of repetitions of the long training field LTF symbol of the NDP for downlink measurement.

[0298] In some embodiments, the perception measurement performed in the measurement instance corresponding to the NDPA includes at least one of the following: uplink perception measurement, downlink perception measurement, and bidirectional perception measurement.

[0299] In some embodiments, when the measurement instance corresponding to the NDPA is set to support bidirectional perception measurement during the perception establishment phase, the NDPA is sent by the access point AP.

[0300] In some embodiments, the measurement instance corresponding to the NDPA is set in the perception establishment phase as follows:

[0301] The AP sends the NDPA, and the non-AP STA waits for the NDPA sent by the AP.

[0302] In some embodiments, when the measurement instance corresponding to the NDPA is set to support bidirectional perception measurement during the perception establishment phase, the NDPA is sent by the device that first obtains the channel use right.

[0303] In some embodiments, when the measurement instance corresponding to the NDPA is set to support bidirectional perception measurement during the perception establishment phase, the measurement instance corresponding to the NDPA is configured with second information during the perception establishment phase, wherein the second information is used to indicate that the NDPA is sent by the AP, or the second information is used to indicate that the NDPA is sent by a device that first obtains the channel use right.

[0304] In some embodiments, the second information is an NDPA sender field in a first frame, wherein the first frame is a sensing establishment request frame or a sensing establishment response frame.

[0305] In some embodiments, the first frame includes an action field, the action field includes a sensory response device information field, and the sensory response device information field includes the NDPA sender field.

[0306] In some embodiments, the AP is configured to allow the AP to be a sensing sending device and a sensing receiving device during the sensing establishment phase, and the Non-AP STA is configured to allow the AP to be a sensing sending device and a sensing receiving device during the sensing establishment phase.

[0307] In some embodiments, the communication unit 410 is further used to send an NDP to the first device according to the first information, and / or the communication unit 410 is further used to receive an NDP sent by the first device according to the first information.

[0308] In some embodiments, when the perception initiating device does not participate in the perception measurement, the perception initiating device obtains the perception measurement result through the AP.

[0309] In some embodiments, the awareness initiating device is a Non-AP STA, and the awareness initiating device triggers establishment of an awareness session between the AP and at least one Non-AP STA.

[0310] In some embodiments, when the first device is an AP and the second device is a Non-AP STA, the communication unit 410 is further configured to send the sensing measurement result to the first device.

[0311] In some embodiments, the communication unit 410 is further configured to receive a sense establishment request sent by the first device;

[0312] The communication unit 410 is further configured to send a sensing establishment response to the first device.

[0313] In some embodiments, when the first device is a Non-AP STA and the second device is an AP, the communication unit 410 is further configured to receive a sensing measurement result sent by the first device.

[0314] 18. The method according to claim 17, characterized in that the method further comprises:

[0315] The communication unit 410 is also used to receive a perception initiation request sent by the perception initiation device;

[0316] The communication unit 410 is further configured to send a sensing establishment request to at least one Non-AP STA, wherein the at least one Non-AP STA includes the first device;

[0317] The communication unit 410 is further configured to receive a sensing establishment response sent by the at least one Non-AP STA;

[0318] The communication unit 410 is further configured to send a perception initiation response to the perception initiation device.

[0319] In some embodiments, when a perception initiating device participates in the perception measurement and the first device is the perception initiating device, the communication unit 410 is further configured to send the perception measurement result to the first device.

[0320] In some embodiments, the communication unit 410 is further configured to not send the perception measurement result to the first device.

[0321] In some embodiments, the communication unit 410 is further configured to receive a sense establishment request sent by the first device;

[0322] The communication unit 410 is further configured to send a sensing establishment response to the first device.

[0323] In some embodiments, when a perception initiating device participates in the perception measurement and the second device is the perception initiating device, the communication unit 410 is further configured to receive the perception measurement result sent by the first device.

[0324] In some embodiments, the second device does not send the perception measurement results to the first device.

[0325] In some embodiments, the communication unit 410 is further configured to send a sensing establishment request to at least one Non-AP STA, wherein the at least one Non-AP STA includes the first device;

[0326] The communication unit 410 is further configured to receive a sensing establishment response sent by the at least one Non-AP STA.

[0327] In some embodiments, the perception establishment request is sent via a perception establishment request frame, wherein the perception establishment request frame includes an action field, the action field includes a perception response device information field, the perception response device information field includes an NDPA sender field, and the value of the NDPA sender field is used to indicate that the NDPA is sent by the AP, or the value of the NDPA sender field is used to indicate that the NDPA is sent by a device that first obtains the channel usage right.

[0328] In some embodiments, the perception establishment response is sent via a perception establishment response frame, wherein the perception establishment response frame includes an action field, the action field includes a perception response device information field, the perception response device information field includes an NDPA sender field, and the value of the NDPA sender field is used to indicate that the NDPA is sent by the AP, or the value of the NDPA sender field is used to indicate that the NDPA is sent by a device that first obtains the channel usage right.

[0329] In some embodiments, when the measurement instance corresponding to the NDPA is set to support unidirectional perception measurement during the perception establishment phase, the NDPA is sent by the perception sending device.

[0330] In some embodiments, when the first information indicates that the device sending the NDPA sends an NDP, and the device receiving the NDPA does not send an NDP, the communication unit 410 is further used to receive the NDP sent by the first device.

[0331] In some embodiments, when the first device is the perception initiating device, the communication unit 410 is further configured to send the perception measurement result to the first device.

[0332] In some embodiments, when the second device is the perception initiating device, the second device does not send the perception measurement result to the first device.

[0333] In some embodiments, when the first information indicates that the device sending the NDPA does not send an NDP, and the device receiving the NDPA sends an NDP, the communication unit 410 is further configured to send an NDP to the first device.

[0334] In some embodiments, when the second device is the perception initiating device, the communication unit 410 is further configured to receive the perception measurement result sent by the first device.

[0335] In some embodiments, the communication unit 410 is further configured to receive a sense establishment request sent by the first device;

[0336] The communication unit 410 is further configured to send a sensing establishment response to the first device.

[0337] In some embodiments, the communication unit 410 is further configured to send a sense establishment request to the first device;

[0338] The communication unit 410 is further configured to receive a sensing establishment response sent by the first device.

[0339] In some embodiments, the first device is a sensory sending device, and the second device is a sensory receiving device; or,

[0340] The first device is a perceptual receiving device, and the second device is a perceptual sending device.

[0341] In some embodiments, the communication unit may be a communication interface or a transceiver, or an input / output interface of a communication chip or a system on chip.

[0342] It should be understood that the wireless communication device 400 according to the embodiment of the present application may correspond to the second device in the method embodiment of the present application, and the above and other operations and / or functions of each unit in the wireless communication device 400 are respectively to implement Figures 5 to 30 For the sake of brevity, the corresponding process of the second device in the method 200 is not repeated here.

[0343] Fig.33 It is a schematic structural diagram of a communication device 500 provided in an embodiment of the present application. Fig.33 The communication device 500 shown includes a processor 510, and the processor 510 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0344] In some embodiments, Fig.33 As shown, the communication device 500 may further include a memory 520. The processor 510 may call and run a computer program from the memory 520 to implement the method in the embodiment of the present application.

[0345] The memory 520 may be a separate device independent of the processor 510 , or may be integrated into the processor 510 .

[0346] In some embodiments, Fig.33 As shown, the communication device 500 may further include a transceiver 530, and the processor 510 may control the transceiver 530 to communicate with other devices, specifically, may send information or data to other devices, or receive information or data sent by other devices.

[0347] The transceiver 530 may include a transmitter and a receiver. The transceiver 530 may further include an antenna, and the number of the antennas may be one or more.

[0348] In some embodiments, the communication device 500 may specifically be the first device of the embodiment of the present application, and the communication device 500 may implement the corresponding processes implemented by the first device in each method of the embodiment of the present application, which will not be described again for the sake of brevity.

[0349] In some embodiments, the communication device 500 may specifically be the second device of the embodiment of the present application, and the communication device 500 may implement the corresponding processes implemented by the second device in each method of the embodiment of the present application, which will not be described in detail here for the sake of brevity.

[0350] Fig.34 It is a schematic structural diagram of the device of an embodiment of the present application. Fig.34 The device 600 shown includes a processor 610, which can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0351] In some embodiments, Fig.34 As shown, the apparatus 600 may further include a memory 620. The processor 610 may call and run a computer program from the memory 620 to implement the method in the embodiment of the present application.

[0352] The memory 620 may be a separate device independent of the processor 610 , or may be integrated into the processor 610 .

[0353] In some embodiments, the apparatus 600 may further include an input interface 630. The processor 610 may control the input interface 630 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.

[0354] In some embodiments, the apparatus 600 may further include an output interface 640. The processor 610 may control the output interface 640 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

[0355] In some embodiments, the apparatus can be applied to the first device in the embodiments of the present application, and the apparatus can implement the corresponding processes implemented by the first device in each method of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0356] In some embodiments, the apparatus may be applied to the second device in the embodiments of the present application, and the apparatus may implement the corresponding processes implemented by the second device in each method of the embodiments of the present application, which will not be described in detail here for the sake of brevity.

[0357] In some embodiments, the device mentioned in the embodiments of the present application may also be a chip, for example, a system-on-chip, a system-on-chip, a chip system, or a system-on-chip chip.

[0358] Fig.35 is a schematic block diagram of a communication system 700 provided in an embodiment of the present application. Fig.35 As shown, the communication system 700 includes a first device 710 and a second device 720 .

[0359] Among them, the first device 710 can be used to implement the corresponding functions implemented by the first device in the above method, and the second device 720 can be used to implement the corresponding functions implemented by the second device in the above method. For the sake of brevity, they are not repeated here.

[0360] It should be understood that the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method embodiment can be completed by the hardware integrated logic circuit or software instructions in the processor. The above processor can be a general processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in the embodiment of the present application can be directly embodied as a hardware decoding processor to perform, or the hardware and software modules in the decoding processor are combined and performed. The software module can be located in a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, and other mature storage media in the art. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0361] It can be understood that the memory in the embodiments of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0362] It should be understood that the above-mentioned memory is exemplary but not restrictive. For example, the memory in the embodiments of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is to say, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.

[0363] An embodiment of the present application also provides a computer-readable storage medium for storing a computer program.

[0364] In some embodiments, the computer-readable storage medium can be applied to the first device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the first device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0365] In some embodiments, the computer-readable storage medium can be applied to the second device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the second device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0366] An embodiment of the present application also provides a computer program product, including computer program instructions.

[0367] In some embodiments, the computer program product can be applied to the first device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the first device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0368] In some embodiments, the computer program product can be applied to the second device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the second device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0369] In some embodiments, the computer program can be applied to the first device in the embodiments of the present application. When the computer program runs on a computer, the computer executes the corresponding processes implemented by the first device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0370] In some embodiments, the computer program can be applied to the second device in the embodiments of the present application. When the computer program runs on the computer, the computer executes the corresponding processes implemented by the second device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0371] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0372] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0373] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0374] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0375] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0376] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. In view of such an understanding, the technical solution of the present application can be embodied in the form of a software product in essence or in other words, the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0377] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A wireless communication method, characterized in that: include: The first device sends a data-free physical layer protocol data unit declaration NDPA to the second device; Among them, the NDPA includes first information, and the first information is used to indicate: NDP is sent bidirectionally, and the device sending the NDPA sends the NDP first, and the device receiving the NDPA sends the NDP later, and the frame carrying the NDPA includes: a site information field, the site information field includes a second field and a third field, the second field is used to indicate the number of space-time streams of the NDP measured downlink, and the third field is used to indicate the number of repetitions of the long training field LTF symbol of the NDP measured downlink.

2. The method according to claim 1, characterized in that The first information is the NDP sequence field in the frame carrying the NDPA.

3. The method according to claim 1, characterized in that The perception measurement performed in the measurement instance corresponding to the NDPA includes at least one of the following: uplink perception measurement, downlink perception measurement, and bidirectional perception measurement.

4. The method according to claim 1, characterized in that In the case where the measurement instance corresponding to the NDPA is configured to support bidirectional perception measurement during the perception establishment phase, the access point AP sends the NDPA.

5. The method according to claim 4, characterized in that The measurement instance corresponding to the NDPA is set in the perception establishment phase as follows: The AP sends the NDPA, and the non-AP STA waits for the NDPA sent by the AP.

6. The method according to claim 1, characterized in that In the case where the measurement instance corresponding to the NDPA is set to support bidirectional perception measurement during the perception establishment phase, the NDPA is sent by the device that first obtains the channel use right.

7. The method according to claim 1, characterized in that In a case where the measurement instance corresponding to the NDPA is set to support bidirectional perception measurement during the perception establishment phase, the measurement instance corresponding to the NDPA is configured with second information during the perception establishment phase, wherein the second information is used to indicate that the NDPA is sent by the AP, or the second information is used to indicate that the NDPA is sent by a device that first obtains the channel use right.

8. The method according to claim 7, characterized in that The second information is the NDPA sender field in the first frame, wherein the first frame is a perception establishment request frame or a perception establishment response frame.

9. The method according to claim 8, characterized in that The first frame includes an action field, the action field includes a sensing response device information field, and the sensing response device information field includes the NDPA sender field.

10. The method according to claim 4, characterized in that The AP is set to allow it to be a sensing sending device and a sensing receiving device during the sensing establishment phase, and the Non-AP STA is set to allow it to be a sensing sending device and a sensing receiving device during the sensing establishment phase.

11. The method according to claim 4, characterized in that The method further comprises: The first device sends an NDP to the second device according to the first information, and / or the first device receives an NDP sent by the second device according to the first information.

12. The method according to claim 4, characterized in that In the case that the perception initiating device does not participate in the perception measurement, the perception initiating device obtains the perception measurement result through the AP.

13. The method according to claim 12, characterized in that The perception initiating device is a Non-AP STA, and the perception initiating device triggers the establishment of a perception session between an AP and at least one Non-AP STA.

14. The method according to claim 12, characterized in that In a case where the first device is an AP and the second device is a Non-AP STA, the method further includes: The first device receives the perception measurement result sent by the second device.

15. The method according to claim 14, characterized in that The method further comprises: The first device receives a perception initiation request sent by the perception initiation device; The first device sends a perception establishment request to at least one Non-AP STA, wherein the at least one Non-AP STA includes the second device; The first device receives a perception establishment response sent by the at least one Non-AP STA; The first device sends a perception initiation response to the perception initiation device.

16. The method according to claim 12, characterized in that In a case where the first device is a Non-AP STA and the second device is an AP, the method further includes: The first device sends the perception measurement result to the second device.

17. The method according to claim 16, characterized in that The method further comprises: The first device receives a perception establishment request sent by the second device; The first device sends a sense establishment response to the second device.

18. The method according to claim 4, characterized in that In a case where a perception initiating device participates in perception measurement, and the first device is the perception initiating device, the method further includes: The first device receives the perception measurement result sent by the second device.

19. The method according to claim 18, characterized in that The method further comprises: The first device does not send the perception measurement result to the second device.

20. The method of claim 18, wherein: The method further comprises: The first device sends a perception establishment request to at least one Non-AP STA, wherein the at least one Non-AP STA includes the second device; The first device receives a perception establishment response sent by the at least one Non-AP STA.

21. The method of claim 4, wherein: In a case where the perception initiating device participates in the perception measurement, and the second device is the perception initiating device, the method further includes: The first device sends the perception measurement result to the second device.

22. The method according to claim 21, characterized in that The method further comprises: The first device receives a perception establishment request sent by the second device; The first device sends a sense establishment response to the second device.

23. The method of claim 15, 17, 20 or 22, wherein: The perception establishment request is sent via a perception establishment request frame, wherein the perception establishment request frame includes an action field, the action field includes a perception response device information field, the perception response device information field includes an NDPA sender field, and the value of the NDPA sender field is used to indicate that the NDPA is sent by the AP, or the value of the NDPA sender field is used to indicate that the NDPA is sent by a device that first obtains the channel usage right.

24. The method of claim 15, 17, 20 or 22, wherein: The perception establishment response is sent via a perception establishment response frame, wherein the perception establishment response frame includes an action field, the action field includes a perception response device information field, the perception response device information field includes an NDPA sender field, and the value of the NDPA sender field is used to indicate that the NDPA is sent by the AP, or the value of the NDPA sender field is used to indicate that the NDPA is sent by a device that first obtains the channel usage right.

25. The method of claim 1, wherein: In the case where the measurement instance corresponding to the NDPA is set to support unidirectional perception measurement during the perception establishment phase, the NDPA is sent by the perception sending device.

26. The method of claim 25, wherein: In a case where the first information indicates that the device sending the NDPA sends the NDP, and the device receiving the NDPA does not send the NDP, the method further includes: The first device sends an NDP to the second device.

27. The method of claim 26, wherein: In the case where the first device is the perception initiating device, the method further includes: The first device receives the perception measurement result sent by the second device.

28. The method of claim 25, wherein: In a case where the first information indicates that the device sending the NDPA does not send the NDP, and the device receiving the NDPA sends the NDP, the method further includes: The first device receives the NDP sent by the second device.

29. The method of claim 28, wherein: In the case where the first device is the perception initiating device, the method further includes: The first device does not send the perception measurement result to the second device.

30. The method of claim 29, wherein: In the case where the second device is the perception initiating device, the method further includes: The first device sends the perception measurement result to the second device.

31. The method according to claim 27 or 29, characterized in that The method further comprises: The first device sends a perception establishment request to the second device; The first device receives a sense establishment response sent by the second device.

32. The method of claim 30, wherein: The method further comprises: The first device receives a perception establishment request sent by the second device; The first device sends a sense establishment response to the second device.

33. The method of claim 1, wherein: The first device is a sensing sending device, and the second device is a sensing receiving device; or, The first device is a perceptual receiving device, and the second device is a perceptual sending device.

34. A wireless communication method, characterized in that: include: The second device receives the physical layer protocol data unit declaration NDPA without data sent by the first device; Among them, the NDPA includes first information, and the first information is used to indicate: NDP is sent bidirectionally, and the device sending the NDPA sends the NDP first, and the device receiving the NDPA sends the NDP later, and the frame carrying the NDPA includes: a site information field, the site information field includes a second field and a third field, the second field is used to indicate the number of space-time streams of the NDP measured downlink, and the third field is used to indicate the number of repetitions of the long training field LTF symbol of the NDP measured downlink.

35. The method of claim 34, wherein: The first information is the NDP sequence field in the frame carrying the NDPA.

36. The method of claim 34, wherein: The perception measurement performed in the measurement instance corresponding to the NDPA includes at least one of the following: uplink perception measurement, downlink perception measurement, and bidirectional perception measurement.

37. The method of claim 34, wherein: In the case where the measurement instance corresponding to the NDPA is configured to support bidirectional perception measurement during the perception establishment phase, the access point AP sends the NDPA.

38. The method of claim 37, wherein: The measurement instance corresponding to the NDPA is set in the perception establishment phase as follows: The AP sends the NDPA, and the non-AP STA waits for the NDPA sent by the AP.

39. The method of claim 34, wherein: In the case where the measurement instance corresponding to the NDPA is set to support bidirectional perception measurement during the perception establishment phase, the NDPA is sent by the device that first obtains the channel use right.

40. The method of claim 34, wherein: In a case where the measurement instance corresponding to the NDPA is set to support bidirectional perception measurement during the perception establishment phase, the measurement instance corresponding to the NDPA is configured with second information during the perception establishment phase, wherein the second information is used to indicate that the NDPA is sent by the AP, or the second information is used to indicate that the NDPA is sent by a device that first obtains the channel use right.

41. The method of claim 40, wherein: The second information is the NDPA sender field in the first frame, wherein the first frame is a perception establishment request frame or a perception establishment response frame.

42. The method of claim 41, wherein: The first frame includes an action field, the action field includes a sensing response device information field, and the sensing response device information field includes the NDPA sender field.

43. The method of claim 37, wherein: The AP is set to allow it to be a sensing sending device and a sensing receiving device during the sensing establishment phase, and the Non-AP STA is set to allow it to be a sensing sending device and a sensing receiving device during the sensing establishment phase.

44. The method of claim 37, wherein: The method further comprises: The second device sends an NDP to the first device according to the first information, and / or the second device receives the NDP sent by the first device according to the first information.

45. The method of claim 37, wherein: In the case that the perception initiating device does not participate in the perception measurement, the perception initiating device obtains the perception measurement result through the AP.

46. ​​The method of claim 45, wherein: The perception initiating device is a Non-AP STA, and the perception initiating device triggers the establishment of a perception session between an AP and at least one Non-AP STA.

47. The method of claim 45, wherein: In a case where the first device is an AP and the second device is a Non-AP STA, the method further includes: The second device sends the perception measurement result to the first device.

48. The method of claim 47, wherein: The method further comprises: The second device receives the perception establishment request sent by the first device; The second device sends a sense establishment response to the first device.

49. The method of claim 45, wherein: In a case where the first device is a Non-AP STA and the second device is an AP, the method further includes: The second device receives the perception measurement result sent by the first device.

50. The method of claim 49, wherein: The method further comprises: The second device receives the perception initiation request sent by the perception initiation device; The second device sends a sense establishment request to at least one Non-AP STA, wherein the at least one Non-AP STA includes the first device; The second device receives a perception establishment response sent by the at least one Non-AP STA; The second device sends a perception initiation response to the perception initiation device.

51. The method of claim 37, wherein: In a case where a perception initiating device participates in perception measurement, and the first device is the perception initiating device, the method further includes: The second device sends the perception measurement result to the first device.

52. The method of claim 51, wherein: The method further comprises: The second device does not send the perception measurement result to the first device.

53. The method of claim 51, wherein: The method further comprises: The second device receives the perception establishment request sent by the first device; The second device sends a sense establishment response to the first device.

54. The method of claim 37, wherein: In a case where the perception initiating device participates in the perception measurement, and the second device is the perception initiating device, the method further includes: The second device receives the perception measurement result sent by the first device.

55. The method of claim 54, wherein: The method further comprises: The second device does not send the perception measurement result to the first device.

56. The method of claim 54, wherein: The method further comprises: The second device sends a sense establishment request to at least one Non-AP STA, wherein the at least one Non-AP STA includes the first device; The second device receives a perception establishment response sent by the at least one Non-AP STA.

57. The method of claim 48, 50, 53 or 56, wherein: The perception establishment request is sent via a perception establishment request frame, wherein the perception establishment request frame includes an action field, the action field includes a perception response device information field, the perception response device information field includes an NDPA sender field, and the value of the NDPA sender field is used to indicate that the NDPA is sent by the AP, or the value of the NDPA sender field is used to indicate that the NDPA is sent by a device that first obtains the channel usage right.

58. The method of claim 48, 50, 53 or 56, wherein: The perception establishment response is sent via a perception establishment response frame, wherein the perception establishment response frame includes an action field, the action field includes a perception response device information field, the perception response device information field includes an NDPA sender field, and the value of the NDPA sender field is used to indicate that the NDPA is sent by the AP, or the value of the NDPA sender field is used to indicate that the NDPA is sent by a device that first obtains the channel usage right.

59. The method of claim 34, wherein: In the case where the measurement instance corresponding to the NDPA is set to support unidirectional perception measurement during the perception establishment phase, the NDPA is sent by the perception sending device.

60. The method of claim 59, wherein: In a case where the first information indicates that the device sending the NDPA sends the NDP, and the device receiving the NDPA does not send the NDP, the method further includes: The second device receives the NDP sent by the first device.

61. The method of claim 60, wherein: In the case where the first device is the perception initiating device, the method further includes: The second device sends the perception measurement result to the first device.

62. The method of claim 60, wherein: In the case where the second device is the perception initiating device, the method further includes: The second device does not send the perception measurement result to the first device.

63. The method of claim 59, wherein: In a case where the first information indicates that the device sending the NDPA does not send the NDP, and the device receiving the NDPA sends the NDP, the method further includes: The second device sends an NDP to the first device.

64. The method of claim 63, wherein: In the case where the second device is the perception initiating device, the method further includes: The second device receives the perception measurement result sent by the first device.

65. The method of claim 61, wherein: The method further comprises: The second device receives the perception establishment request sent by the first device; The second device sends a sense establishment response to the first device.

66. The method of claim 62 or 64, wherein: The method further comprises: The second device sends a perception establishment request to the first device; The second device receives the perception establishment response sent by the first device.

67. The method of claim 34, wherein: The first device is a sensing sending device, and the second device is a sensing receiving device; or, The first device is a perceptual receiving device, and the second device is a perceptual sending device.

68. A wireless communication device, characterized in that: The wireless communication device is a first device, and the wireless communication device includes: A communication unit, configured to send a data-free physical layer protocol data unit announcement NDPA to the second device; Among them, the NDPA includes first information, and the first information is used to indicate: NDP is sent bidirectionally, and the device sending the NDPA sends the NDP first, and the device receiving the NDPA sends the NDP later, and the frame carrying the NDPA includes: a site information field, the site information field includes a second field and a third field, the second field is used to indicate the number of space-time streams of the NDP measured downlink, and the third field is used to indicate the number of repetitions of the long training field LTF symbol of the NDP measured downlink.

69. A wireless communication device, characterized in that: The wireless communication device is a second device, and the wireless communication device includes: A communication unit, configured to receive a data-free physical layer protocol data unit announcement NDPA sent by the first device; Among them, the NDPA includes first information, and the first information is used to indicate: NDP is sent bidirectionally, and the device sending the NDPA sends the NDP first, and the device receiving the NDPA sends the NDP later, and the frame carrying the NDPA includes: a site information field, the site information field includes a second field and a third field, the second field is used to indicate the number of space-time streams of the NDP measured downlink, and the third field is used to indicate the number of repetitions of the long training field LTF symbol of the NDP measured downlink.

70. A wireless communication device, characterized in that: include: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory, and to execute the method as claimed in any one of claims 1 to 33, or to execute the method as claimed in any one of claims 34 to 67.

71. A chip, characterized in that: include: A processor, used to call and run a computer program from a memory, so that a device equipped with the chip executes a method as described in any one of claims 1 to 33, or executes a method as described in any one of claims 34 to 67.

72. A computer-readable storage medium, characterized in that Used to store a computer program, wherein the computer program enables a computer to execute the method according to any one of claims 1 to 33, or to execute the method according to any one of claims 34 to 67.

73. A computer program product, characterized in that The method comprises computer program instructions, which enable a computer to execute the method according to any one of claims 1 to 33, or to execute the method according to any one of claims 34 to 67.

Images