CN117480807A

CN117480807A - Method and apparatus for wireless communication

Info

Publication number: CN117480807A
Application number: CN202180099112.5A
Authority: CN
Inventors: 周培; 黄磊; 罗朝明
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2024-01-30
Also published as: WO2023019587A1

Abstract

The embodiment of the application provides a wireless communication method and device, which designs a non-trigger (non-TB) -based perception measurement scheme and can realize unidirectional perception measurement and/or bidirectional perception measurement. The method of wireless communication includes: the first device sends a physical layer protocol data unit announcement (NDPA) without data to the second device; wherein the NDPA includes first information for indicating one of: unidirectional sending of a physical layer protocol data unit (NDP) without data or bidirectional sending of the NDP; the device for transmitting the NDPA firstly transmits NDP or the device for receiving the NDPA firstly transmits NDP; unidirectional NDP is sent, NDP is sent by the device sending the NDPA, and NDP is not sent by the device receiving the NDPA; the method comprises the steps that NDP is sent in a two-way mode, and equipment for sending the NDPA sends the NDP first, and equipment for receiving the NDPA sends the NDP; the device which receives the NDPA firstly transmits the NDP, and the device which transmits the NDPA then transmits the NDP; and the device which transmits the NDPA does not transmit the NDP, and the device which receives the NDPA transmits the NDP.

Description

Method and apparatus for wireless communication

Technical Field

The embodiments of the present application relate to the field of communications, and more particularly, to a method and apparatus for wireless communications.

Background

Wireless local area network (Wireless Local Area Networks, WLAN) Sensing (Sensing) refers to methods and applications for Sensing persons or objects in an environment by measuring changes in WLAN signals through scattering and/or reflection of the persons or objects. Non-Trigger Based (Non-TB) aware measurement is ranging between a pair of devices (initiating station (Initiating Station, ISTA) and responding station (Responding Station, RSTA)), however, how to implement Non-TB aware measurement is an urgent problem to be solved. Disclosure of Invention

The embodiment of the application provides a wireless communication method and device, which can realize non-TB perception measurement and promote the flexibility of perception measurement on the premise of conforming to paired (Pairwise) perception measurement.

In a first aspect, a method of wireless communication is provided, the method comprising:

the first device sends an NDPA to the second device;

wherein the NDPA includes first information indicating one of:

unidirectional transmission NDP or bidirectional transmission NDP;

the device that transmits the NDPA first transmits the NDP or the device that receives the NDPA first transmits the NDP;

Unidirectional NDP is sent, and the device sending the NDPA sends NDP, and the device receiving the NDPA does not send NDP;

the device for sending the NDP sends the NDP firstly, and the device for receiving the NDPA sends the NDP afterwards;

the device which receives the NDPA firstly transmits the NDP, and the device which transmits the NDPA then transmits the NDP;

the device that transmits the NDP unidirectionally transmits the NDP, and the device that receives the NDPA transmits the NDP without transmitting the NDP.

In a second aspect, there is provided a method of wireless communication, the method comprising:

the second equipment receives the NDPA sent by the first equipment;

wherein the NDPA includes first information indicating one of:

unidirectional transmission NDP or bidirectional transmission NDP;

In a third aspect, there is provided an apparatus for wireless communication for performing the method of the first aspect described above.

In particular, the device for wireless communication comprises functional modules for performing the method in the first aspect described above.

In a fourth aspect, there is provided a device for wireless communication for performing the method of the second aspect described above.

In particular, the device for wireless communication comprises functional modules for performing the method in the second aspect described above.

In a fifth aspect, an apparatus for wireless communication is provided that includes a processor and a memory. The memory is for storing a computer program and the processor is for calling and running the computer program stored in the memory for performing the method of any of the above first to second aspects.

In a sixth aspect, there is provided an apparatus for implementing the method of any one of the first to second aspects.

Specifically, the device comprises: a processor for calling and running a computer program from a memory, causing a device in which the apparatus is installed to perform the method of any of the first to second aspects as described above.

In a seventh aspect, a computer-readable storage medium is provided for storing a computer program that causes a computer to execute the method of any one of the first to second aspects described above.

In an eighth aspect, there is provided a computer program product comprising computer program instructions for causing a computer to perform the method of any one of the first to second aspects above.

In a ninth aspect, there is provided a computer program which, when run on a computer, causes the computer to perform the method of any one of the first to second aspects described above.

Through the technical scheme, for unidirectional transmission of the NDP, the device for transmitting the NDP can be indicated by the NDPA, and for bidirectional transmission of the NDP, the order of transmitting the NDP can be indicated by the NDPA, so that non-TB perception measurement can be realized, and the flexibility of perception measurement is improved on the premise of conforming to paired (Pairwise) perception measurement.

Drawings

Fig. 1 is a schematic diagram of a communication system architecture to which embodiments of the present application apply.

Fig. 2 is a schematic diagram of a paired sensing procedure provided herein.

Figure 3 is a schematic diagram of a unidirectional LMR provided herein.

Figure 4 is a schematic diagram of a bi-directional LMR provided herein.

Fig. 5 is a schematic flow chart diagram of a method of wireless communication provided in accordance with an embodiment of the present application.

Fig. 6 is a schematic diagram of an NDPA frame format provided according to an embodiment of the present application.

Fig. 7 to 11 are schematic diagrams of transmitting NDPA and NDP, respectively, provided according to an embodiment of the present application.

Fig. 12 to 15 are schematic diagrams of reporting awareness reports provided according to embodiments of the present application, respectively.

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

Fig. 17 is a schematic diagram of a perceptual setup response frame format provided in accordance with an embodiment of the present application.

Fig. 18 is a schematic diagram of a perceived initiation request frame format provided in accordance with an embodiment of the present application.

Fig. 19 is a schematic diagram of a perceptually initiated response frame format provided in accordance with an embodiment of the present application.

Fig. 20 to 23 are schematic diagrams of transmitting NDPA and NDP, respectively, provided according to an embodiment of the present application.

Fig. 24 to 26 are schematic diagrams of reporting awareness reports provided according to embodiments of the present application, respectively.

Fig. 27 to 29 are schematic diagrams of perception establishment provided according to embodiments of the present application, respectively.

Fig. 30 is a schematic diagram of a perception report frame format provided in accordance with an embodiment of the present application.

Fig. 31 is a schematic block diagram of a device for wireless communication provided in accordance with an embodiment of the present application.

Fig. 32 is a schematic block diagram of a device for wireless communication provided in accordance with an embodiment of the present application.

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

Fig. 34 is a schematic block diagram of an apparatus provided in accordance with an embodiment of the present application.

Fig. 35 is a schematic block diagram of a communication system provided according to an embodiment of the present application.

Detailed Description

The following description of the technical solutions in the embodiments of the present application will be made with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden for the embodiments herein, are intended to be within the scope of the present application.

The technical solution of the embodiment of the application can be applied to various communication systems, for example: wireless local area network (Wireless Local Area Networks, WLAN), wireless fidelity (Wireless Fidelity, wiFi) or other communication systems, etc.

Exemplary, a communication system 100 to which embodiments of the present application apply is shown in fig. 1. The communication system 100 may include an access point station (Access Point Station, AP STA) 110, and a Non-access point station (Non-Access Point Station, non-AP STA) 120 that accesses the network through the AP STA 110.

In some embodiments, AP STA 110 and/or Non-AP STA 120 may be deployed on land, including indoors or outdoors, hand-held, wearable, or vehicle-mounted; can also be deployed on the water surface (such as a ship); but may also be deployed in the air (e.g., on aircraft, balloon, satellite, etc.).

In the embodiment of the present application, the Non-AP STA 120 may be a Mobile Phone (Mobile Phone), a tablet (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) device, an augmented Reality (Augmented Reality, AR) device, a wireless device in an industrial control (industrial control), a wireless device in an unmanned driving (self driving), a wireless device in a remote medical (remote medical), a wireless device in a smart grid (smart grid), a wireless device in a transportation security (transportation safety), a wireless device in a smart city (smart city), or a wireless device in a smart home (smart home), and so on.

By way of example and not limitation, in embodiments of the present application, non-AP STA 120 may also be a wearable device. The wearable device can also be called as a wearable intelligent device, and is a generic name for intelligently designing daily wear by applying wearable technology and developing wearable devices, such as glasses, gloves, watches, clothes, shoes and the like. The wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also can realize a powerful function through software support, data interaction and cloud interaction. The generalized wearable intelligent device includes full functionality, large size, and may not rely on the smart phone to implement complete or partial functionality, such as: smart watches or smart glasses, etc., and focus on only certain types of application functions, and need to be used in combination with other devices, such as smart phones, for example, various smart bracelets, smart jewelry, etc. for physical sign monitoring.

Fig. 1 illustrates one AP STA and two Non-AP STAs, and in some embodiments, the communication system 100 may include multiple AP STAs and include other numbers of Non-AP STAs, which are not limited in this application.

It should be understood that a device having a communication function in a network/system in an embodiment of the present application may be referred to as a communication device. Taking the communication system 100 shown in fig. 1 as an example, the communication device may include an AP STA 110 and a Non-AP STA 120 with communication functions, where the AP STA 110 and the Non-AP STA 120 may be specific devices described above, and are not described herein again; the communication device may also include other devices in the communication system 100, such as a network controller, a gateway, and other network entities, which are not limited in this embodiment of the present application.

It should be understood that the terms "system" and "network" are used interchangeably herein. The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

It should be understood that, in the embodiments of the present application, the "indication" may be a direct indication, an indirect indication, or an indication having an association relationship. For example, a indicates B, which may mean that a indicates B directly, e.g., B may be obtained by a; it may also indicate that a indicates B indirectly, e.g. a indicates C, B may be obtained by C; it may also be indicated that there is an association between a and B.

The terminology used in the description section of the present application is for the purpose of describing particular embodiments of the present application only and is not intended to be limiting of the present application. The terms "first," "second," "third," and "fourth" and the like in the description and in the claims of this application and in the drawings, are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

In the description of the embodiments of the present application, the term "corresponding" may indicate that there is a direct correspondence or an indirect correspondence between the two, or may indicate that there is an association between the two, or may indicate a relationship between the two and the indicated, configured, or the like.

In the embodiments of the present application, "predefined" or "preconfiguring" may be implemented by pre-storing corresponding codes, tables, or other manners that may be used to indicate relevant information in a device (including, for example, an STA and a network device), and the specific implementation of the present application is not limited herein. Such as predefined may refer to what is defined in the protocol.

In this embodiment of the present application, the "protocol" may refer to a standard protocol in the communication field, for example, may include a WiFi protocol and a related protocol applied in a future WiFi communication system, which is not limited in this application.

In order to facilitate understanding of the technical solutions of the embodiments of the present application, the following description will be given with respect to the terms related to the present application.

An association identifier (Association Identifier, AID) for identifying the terminal after association with the access point.

An unassociated identifier (Unassociation Identifier, UID) for identifying a terminal that has not been associated with the access point.

Medium access control (Medium Access Control, MAC). Are commonly used as MAC addresses (addresses), i.e. short for medium access control addresses.

A transmission opportunity (Transmission Opportunity, TXOP) refers to a period of time during which a terminal that has the transmission opportunity may actively initiate one or more transmissions.

Burst signal (Burst), generally refers to a small period of time during which one or more signals are transmitted.

Burst Group (Burst Group), which refers to a combination of one or more Burst signals. Burst signals in the same burst signal group generally have some common characteristics.

In order 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 may be optionally combined with the technical solutions of the embodiments of the present application, which all belong to the protection scope of the embodiments of the present application. Embodiments of the present application include at least some of the following.

WLAN Sensing senses people or objects in the environment by measuring changes in WLAN signals through human or object scattering and/or reflection. That is, WLAN Sensing measures and senses the surrounding environment through wireless signals, so that it is possible to perform various functions such as detection of whether a person is invading, moving, falling, etc. indoors, gesture recognition, and space three-dimensional image establishment.

In order to facilitate understanding of the technical solutions of the embodiments of the present application, the following description describes WLAN awareness related to the present application.

WLAN devices participating in WLAN awareness may include the following roles (roles):

a perception initiation device (Sensing Initiator), a device that initiates a perception session (perception session) and wants to learn the perception result;

a perceptually responsive device (Sensing Responder), a non-Sensing Initiator device engaged in the sending session;

-a sensing transmission device (Sensing Transmitter), a device initiating a sensing measurement signal (sensing illumination signal);

a Sensing Receiver (Sensing Receiver) for receiving a Sensing measurement signal (Sensing illumination signal);

a perception processing device (Sensing processor), a device that processes the perception measurements;

a cognitive participant device (Sensing Participant) includes a cognitive session initiation device, a cognitive signal transmission device, and a cognitive signal reception device.

The WLAN terminal may have one or more roles in one aware session, for example, the aware initiating device may be just the aware initiating device, may also be the aware transmitting device, may also be the aware receiving device, and may also be both the aware transmitting device and the aware receiving device.

In some embodiments, there may be multiple Sensing types (Sensing types). For example, based on a perceived type of channel state information (Channel State Information, CSI), i.e., CSI-based Sensing, the perceived type is a Sensing measurement obtained by processing CSI of received perceived measurement signals. As another example, the Sensing type is based on the Sensing type of the reflected signal, namely Radar-based Sensing, which is a Sensing measurement obtained by processing the reflected signal of the received Sensing measurement signal.

The WLAN aware session includes one or more of the following phases: session establishment, perception measurement, perception reporting, session termination.

Session establishment phase: a perception session is established, a perception session participant and its role (including a perception transmitting device and a perception receiving device) are determined, a perception session related operational parameter is decided, and the parameter is optionally interacted between terminals.

Sensing and measuring stage: and performing perception measurement, wherein the perception transmitting device transmits a perception signal to the perception receiving device.

And a perception reporting stage: reporting the measurement results, which is determined by the application scenario, the perception receiving device may need to report the measurement results to the perception initiating device.

Session termination phase: the terminal stops the measurement and terminates the sensing session.

Upon establishment of a perceived session, the terminals may need to negotiate perceived roles and operational parameters one by one or the terminals declare their own roles and operational parameters (e.g., through beacon frames or other special frames).

The data size of the sensing measurement result is usually relatively large, for example, the channel state information (Channel State Information, CSI) data measured at one time may reach 4K to 40K bits, in order to reduce the network load caused by reporting the sensing measurement result, a measurement threshold may be set, and when the variation of the sensing measurement result of this time and the sensing measurement result of the last time is smaller than the measurement threshold, the sensing receiving device reports the sensing measurement result, otherwise, does not report the sensing measurement result.

The awareness initiating device may set multiple sets of measurement parameters, one set of measurement parameters (identified with a measurement setup identifier (Measurment Setup ID), which may be equivalent to a Burst Group) may be applied to multiple measurements (identified with a measurement instance identifier (Measurement Instance ID), which may be equivalent to a Burst).

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.

WLAN Sensing is performed in a pair-wise manner and contains the following two Identities (IDs) for distinguishing between Setup and measurement instances:

1) A measurement setup identity (Measurement Setup ID) which may be used to identify attributes used in sensing measurement instances, the measurement setup being provided to each of the responding devices separately during the negotiation phase, the measurement setup identity being set to the same value in a response procedure sharing the same measurement instance.

2) A measurement instance identifier (Measurement Instance ID) that uniquely identifies the perceived measurement instance based on the measurement setup identifier, the measurement instance identifier being used to identify frames belonging to the same perceived measurement instance.

It is noted that under one measurement setup identifier (Measurement Setup ID), as shown in fig. 2, there may be different measurement instances (Measurement Instance), these Measurement Instance may be used in different measurement manners, e.g., different devices involved in the measurement, different parameters used for the measurement, etc.

As shown in fig. 2, the awareness initiating device may set multiple sets of measurement parameters, one set of which (identified by Measurment Setup ID, which may be equivalent to a Burst Group) may be applied to multiple measurements (identified by Measurement Instance ID, which may be equivalent to a Burst).

To facilitate a better understanding of the embodiments of the present application, non-trigger-based (non-TB) Ranging (Ranging) is described in connection with the present application.

non-TB Ranging is Ranging between a pair of devices (ISTA and RSTA). In the set measurement window, the ISTA announces (null data physical layer protocol data unit announcement, NDPA) +ista to RSTA (I2R) data-free physical layer protocol data unit (null data physical layer protocol data unit, NDP) through Ranging (Ranging) data-free physical layer protocol data unit to initiate measurement, and then the RSTA sends RSTA to ISTA (R2I) NDP to perform measurement. Depending on the setting of the ISTA and RSTA, the measurement reporting phase (Measurement Reporting phase) may be the uni-directional R2I position measurement report (Location Measurement Report, LMR) of fig. 3 or the bi-directional LMR (r2i lmr+i2r LMR) of fig. 4.

At present, the WLAN Sensing mechanism only provides a pair of Sensing Setup (Sensing Setup), sensing measurement (Sensing Measurement) and Sensing reporting (Sensing Reporting), and how to implement the above stages and how to design the frame structure is a problem to be solved. In addition, the above-described non-TB Ranging is applicable only to Ranging between WLAN devices, and does not support WLAN Sensing defined in the 802.11bf standard, so it is necessary to design a non-TB Sensing protocol and a frame structure applicable to 802.11bf based on the 802.11az non-TB Ranging protocol.

Based on the above problems, the present application proposes a scheme for sensing measurement, for unidirectional NDP transmission, the device for transmitting NDP may be indicated by NDPA, for bidirectional NDP transmission, the order of NDP transmission may be indicated by NDPA, so that non-TB sensing measurement may be implemented, and on the premise of conforming to paired (pair) sensing measurement, flexibility of sensing measurement is improved.

The technical scheme of the present application is described in detail below through specific embodiments.

Fig. 5 is a schematic flow chart of a method 200 of wireless communication according to an embodiment of the present application, as shown in fig. 5, the method 200 of wireless communication may include at least some of the following:

S210, the first device sends NDPA to the second device; wherein the NDPA includes first information indicating one of: unidirectional transmission NDP or bidirectional transmission NDP; the device that transmits the NDPA first transmits the NDP or the device that receives the NDPA first transmits the NDP; unidirectional NDP is sent, and the device sending the NDPA sends NDP, and the device receiving the NDPA does not send NDP; the device for sending the NDP sends the NDP firstly, and the device for receiving the NDPA sends the NDP afterwards; the device which receives the NDPA firstly transmits the NDP, and the device which transmits the NDPA then transmits the NDP; unidirectional NDP is sent, NDP is not sent by the device sending the NDPA, and NDP is sent by the device receiving the NDPA;

s220, the second device receives the NDPA sent by the first device.

In the embodiment of the application, for unidirectional transmission NDP, the device for transmitting NDP can be indicated by NDPA, and for bidirectional transmission NDP, the sequence for transmitting NDP can be indicated by NDPA, so that non-TB sensing measurement can be realized, and on the premise of conforming to paired (pain) sensing measurement, the flexibility of sensing measurement is improved.

In some embodiments, the first device is a Sensing transmitting device (Sensing Transmitter) and the second device is a Sensing receiving device (Sensing Receiver); alternatively, the first device is a Sensing Receiver device (Sensing Transmitter) and the second device is a Sensing transmitter device (Sensing Receiver).

In some embodiments, the first device may also be a perceptually originating device or a perceptually responding device,

in some embodiments, the first information may occupy 1 bit, with a setting of 0 indicating unidirectional transmission NDP and a setting of 1 indicating bidirectional transmission NDP. Alternatively, setting 1 indicates unidirectional transmission NDP, and setting 0 indicates bidirectional transmission NDP. The present application is not limited in this regard.

In some embodiments, in the case of bi-directionally transmitting NDP, the first information may occupy 1 bit, with a setting of 0 indicating that the device transmitting the NDPA transmits NDP first and a setting of 1 indicating that the device receiving the NDPA transmits NDP first. Alternatively, a setting of 1 indicates that the device transmitting the NDPA transmits NDP first, and a setting of 0 indicates that the device receiving the NDPA transmits NDP first. The present application is not limited in this regard.

In some embodiments, the first information may occupy 2 bits, set to 00 to represent unidirectional transmission NDP, and the device transmitting the NDPA transmits NDP, and the device receiving the NDPA does not transmit NDP; setting to 01 to indicate that NDP is sent bidirectionally, and equipment sending the NDPA sends the NDP first and equipment receiving the NDPA sends the NDP later; setting to 10 to indicate that NDP is sent bidirectionally, and equipment receiving the NDPA sends the NDP first and then sends the NDP after equipment sending the NDPA; setting to 11 indicates that NDP is unidirectionally transmitted, and the device transmitting the NDPA does not transmit NDP, and the device receiving the NDPA transmits NDP. Of course, the first information may occupy more bits, and the information is indicated by different values provided herein, which is not limited in this application.

In some embodiments, the first information is an NDP Order (NDP Order) field in a frame carrying the NDPA.

In some embodiments, a frame carrying the NDPA includes a general information field and a site information field, wherein the general information field includes a first field for indicating that the current measurement is a non-trigger-based perceptual measurement and the NDP sequence field includes a second field for indicating a number of space-time streams (spatial-time streams) of an NDP of a downlink measurement and a third field for indicating a repetition number of long training field (Long Training Field, LTF) symbols of the NDP of the downlink measurement.

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

In some embodiments, the second field is a downlink NDP space-time stream (DL n_sts) field, which occupies 4 bits, for indicating the number of space-time streams (spatial-time streams) of the NDP measured downstream.

In some embodiments, the third field is a downlink repetition (DL Rep) field occupying 4 bits for indicating the number of repetitions of LTF symbols of the NDP for downlink measurements.

In some embodiments, the frame carrying the NDPA may be an NDPA frame or a sense announcement frame (Sensing Announcement). Of course, the frame carrying the NDPA may be another frame, which is not limited in this application.

In some embodiments, in the case where the frame carrying NDPA is a sense announcement frame, as shown in fig. 6, a sense control frame is defined, a new control frame is defined, a frame Type (Type) of 1 indicates that the frame is a control frame, a frame Subtype (Subtype) value of 5 indicates that the frame is an extended control frame, a control frame extension (Control Frame Extension) value of 11 (may be any one of 11-15) indicates that the frame is a sense control frame, and a sense Subtype (Sensing Subtype) value of 1 (may be any one of 0-15) indicates that the frame is a sense announcement frame (Sensing Announcement).

As shown in fig. 6, the general information field in the sense announcement frame includes a TB/non-TB field and an NDP sequence field.

The TB/non-TB field is used to indicate whether the current measurement is of the TB or non-TB type. Alternatively, it may be determined by whether there is a trigger sense Poll (TF SENS Poll).

The NDP sequence field occupies 2 bits, specifically, NDP sequence=00, one-way NDP is sent, the device sending NDPA sends NDP, and the device receiving NDPA does not send NDP; NDP sequence=01, the device sending NDPA sends NDP first and the device receiving NDPA sends NDP later; NDP sequence=10, the device receiving NDPA transmits NDP first and then the device transmitting NDPA transmits NDP; or NDP order = 10 is a reserved value (reserved); NDP sequence=11. One-way NDP is sent, the device sending NDPA does not send NDP, and the device receiving NDPA sends NDP.

For example, if one device is set to be only a Sensing transmitting device (Sensing Transmitter) and the other device is set to be only a Sensing receiving device (Sensing Receiver) at the time of Sensing Setup, NDP can only be transmitted unidirectionally, and the NDP sequence field is set to 00.

As shown in fig. 6, the site information field in the sense announcement frame includes a DL n_sts field and a DL Rep field, wherein the DL n_sts field occupies 4 bits for indicating the number of space-time streams (space-time streams) of NDP measured downstream; the DL Rep field occupies 4 bits for indicating the repetition number of LTF symbols of the NDP for downlink measurement.

In some embodiments, the perceptual measurement performed in the corresponding measurement instance of the NDPA includes at least one of: uplink sensing measurement, downlink sensing measurement and bidirectional sensing measurement.

In some embodiments, if a device is set to support both Transmission (TX) and Reception (RX) in a Sensing Setup (Sensing Setup) phase, in different measurement instances, it may be flexibly indicated by an NDP sequence field of an NDPA frame that a certain measurement instance only makes an uplink or downlink or bidirectional Sensing measurement, etc.

In some embodiments, during the sensing measurement phase, only one-way sensing measurements (Sensing Measurement) are made, and the sensing transmission device (Sensing Transmitter) transmits ndpa+ndp.

In some embodiments, during the sensing measurement phase, a bi-directional sensing measurement (Sensing Measurement) is performed, and the device that first acquired the channel first transmits ndpa+ndp.

In some embodiments, during the sensing measurement phase, a bi-directional sensing measurement (Sensing Measurement) is performed forcing the AP to first send ndpa+ndp.

In some embodiments, the NDPA is sent by the AP in the case where the measurement instance corresponding to the NDPA is set to support bidirectional awareness measurements during the awareness establishment phase. That is, in the case where the measurement instance corresponding to the NDPA is set to support the bidirectional sensing measurement in the sensing establishment phase, the NDPA is always transmitted by the AP.

In some embodiments, the measurement instance corresponding to the NDPA is set to: the AP transmits the NDPA and the Non-AP STA waits for the NDPA transmitted by the AP. That is, the enforcement rule is set in the perception establishment phase: in the measurement example where the two-way sensing measurement is set in the sensing establishment stage, the NDPA frame must be sent by the AP, and the Non-AP STA needs to wait for the NDPA frame sent by the AP without signaling indication.

Specifically, for example, as shown in fig. 7, when entering the sensing measurement phase (Sensing Measurement phase), the Non-AP STA may not first transmit an NDPA frame to turn on the sensing measurement (Sensing Measurement), but wait for the AP to transmit an NDPA frame to turn on the sensing measurement (Sensing Measurement).

In some embodiments, the NDPA is transmitted by a device that first acquired channel usage rights in the case where the measurement instance corresponding to the NDPA is set to support bidirectional sensing measurements during the sensing establishment phase. For example, a device that first obtains channel usage rights (Contention based access) first transmits NDPA.

In some embodiments, in the case that the measurement instance corresponding to the NDPA is set to support bidirectional sensing measurement in the sensing establishment phase, the device that sends the NDPA may default to send the NDP first, and the device that receives the NDPA sends the NDP later.

Specifically, for example, as shown in fig. 8, if the AP first obtains channel usage rights, the NDPA is transmitted by the AP, and the AP first transmits the NDP for sensing measurement (Sensing Measurement), and then the Non-AP STA transmits the NDP for sensing measurement (Sensing Measurement).

Specifically, as shown in fig. 9, if the Non-AP STA first obtains channel usage rights, the Non-AP STA transmits NDPA, and the Non-AP STA first transmits NDP for sensing measurement (Sensing Measurement), and then the AP transmits NDP for sensing measurement (Sensing Measurement).

In fig. 8 and 9, the device that transmits the NDPA frame by default transmits the NDP directly after a short inter-frame space (Short Interframe Space, SIFS) time to perform the sensing measurement, and then another device transmits the NDP after the SIFS time to perform the sensing measurement in the opposite direction. The transmission order of the NDP may not be limited to that the device transmitting the NDPA frame transmits the NDP first, but may indicate the transmission order of the next two NDP frames through an NDP order field in the NDPA frame.

For example, in fig. 8 and 9 described above, the first information may indicate: and the device for sending the NDPA firstly sends the NDP, and the device for receiving the NDPA then sends the NDP.

Specifically, for example, as shown in fig. 10, if the AP obtains the channel usage right first, the NDPA is sent by the AP, and the first information may indicate: the NDP is sent bi-directionally, and the device receiving the NDPA sends the NDP first, and the device sending the NDPA sends the NDP later, i.e., the Non-AP STA sends the NDP first for sensing measurements (Sensing Measurement), and then the AP sends the NDP for sensing measurements (Sensing Measurement).

As another specific example, as shown in fig. 11, if the Non-AP STA obtains the channel usage right first, the Non-AP STA transmits the NDPA, and the first information may indicate: the NDP is sent bi-directionally, and the device receiving the NDPA sends the NDP first, and the device sending the NDPA sends the NDP later, i.e., and the AP sends the NDP first for sensing measurements (Sensing Measurement), and then the Non-AP STA sends the NDP for sensing measurements (Sensing Measurement).

In some embodiments, in a case where the measurement instance corresponding to the NDPA is set to support bidirectional sensing measurement in the sensing establishment phase, the measurement instance corresponding to the NDPA is configured with second information in the sensing establishment phase, where the second information is used to indicate that the NDPA is transmitted by the AP, or the second information is used to indicate that the NDPA is transmitted by a device that acquires channel usage right earlier.

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

In some embodiments, the first frame includes an action field including a sensory response device information field including the NDPA Sender (NDPA Sender) field.

Specifically, for example, when NDPA sender=0, a device (whether AP or STA) that first obtains channel usage rights first transmits NDPA; when NDPA sender=1, then the Non-AP STA needs to wait for the NDPA frame sent by the AP to send the NDPA frame by the AP. Alternatively, when NDPA sender=1, the device (whether AP or STA) that first obtains channel usage rights first sends NDPA; when NDPA sender=0, then the Non-AP STA needs to wait for the NDPA frame sent by the AP to send the NDPA frame by the AP.

In some embodiments, in a case where 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 to act as a Sensing transmitting device (Sensing Transmitter) and a Sensing receiving device (Sensing Receiver) in the Sensing establishment phase, and the Non-AP STA is set to allow to act as a Sensing transmitting device (Sensing Transmitter) and a Sensing receiving device (Sensing Receiver) in the Sensing establishment phase. That is, if the setting of a certain measurement instance in the perception establishment phase is: the AP may be a Sensing transmitting device (Sensing Transmitter) or a Sensing receiving device (Sensing Receiver), and the Non-AP STA may be a Sensing transmitting device (Sensing Transmitter) or a Sensing receiving device (Sensing Receiver).

In some embodiments, the first device transmits an NDP to the second device according to the first information, and/or the first device receives an NDP transmitted by the second device according to the first information.

In some embodiments, during the Sensing reporting phase, only one-way Sensing measurements (Sensing Measurement) are made, the Sensing initiation device (Sensing Initiator) is a Sensing transmission device (Sensing Transmitter), and the Sensing reception device (Sensing Receiver) needs to transmit a Sensing measurement Report (Sensing Report) to the Sensing transmission device (Sensing Transmitter).

In some embodiments, during the Sensing reporting phase, only one-way Sensing measurements (Sensing Measurement) are made, the Sensing initiation device (Sensing Initiator) is a Sensing reception device (Sensing Receiver) that does not need to send a Sensing measurement Report (Sensing Report).

In some embodiments, during the Sensing reporting phase, only one-way Sensing measurements (Sensing Measurement) are performed, the Sensing initiator device (Sensing Initiator) does not participate in the Sensing measurements (Sensing Measurement), the Sensing Receiver device (Sensing Receiver) is a Non-AP STA, and then the Non-AP STA needs to send a Sensing measurement Report (Sensing Report) to the AP, and the AP sends the Sensing measurement Report (Sensing Report) to the Sensing initiator device (Sensing Initiator).

In some embodiments, during the Sensing reporting phase, only one-way Sensing measurements (Sensing Measurement) are made, the Sensing initiator device (Sensing Initiator) is not engaged in the Sensing measurements (Sensing Measurement), and the Sensing Receiver device (Sensing Receiver) is an AP, which then sends a Sensing measurement Report (Sensing Report) directly to the Sensing initiator device (Sensing Initiator).

In some embodiments, during the Sensing reporting phase, a bi-directional Sensing measurement (Sensing Measurement) is performed, the Sensing initiator device (Sensing Initiator) is an AP and participates in the Sensing measurement (Sensing Measurement), and then the Non-AP STA needs to send a Sensing Report to the AP.

In some embodiments, during the Sensing reporting phase, a bi-directional Sensing measurement (Sensing Measurement) is performed, the Sensing initiator device (Sensing Initiator) is a Non-AP STA and participates in the Sensing measurement (Sensing Measurement), and the AP needs to send a Sensing Report to the STA.

In some embodiments, during the Sensing reporting phase, where a bi-directional Sensing measurement (Sensing Measurement) is performed, the Sensing initiator device (Sensing Initiator) does not participate in the Sensing measurement (Sensing Measurement), then the Non-AP STA needs to send a Sensing Report (Sensing Report) to the AP, which in turn sends the Sensing Report (Sensing Report) to the Sensing initiator device (Sensing Initiator).

In some embodiments, the perception measurement is sent to the device sending the perception establishment request (Sensing Setup Request):

if Sensing Initiator participates in Sensing Measurement, sensing Initiator sends Sensing Setup Request and the perceived measurement is fed back to Sensing Initiator;

if Sensing Initiator does not participate in Sensing Measurement, then Sensing Setup Request is sent by the AP proxy and the perceived measurement is sent to the AP and then fed back to Sensing Initiator.

In some embodiments, the awareness initiating device obtains awareness measurements through the AP without the awareness initiating device participating in the awareness measurements. For example, the awareness initiating device (Sensing Initiator) 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.

In some embodiments, in a case where the sensing initiation device does not participate in sensing measurement, in a case where the first device is an AP and the second device is a Non-AP STA, the first device receives a sensing measurement result sent by the second device.

In some embodiments, in the event that the awareness initiating device is not engaged in awareness measurement, and in the event that the first device is an AP and the second device is a Non-AP STA, the first device receives an awareness initiating request sent by the awareness initiating device (Sensing Initiating Request); the first device sending a request for a awareness establishment to at least one Non-AP STA, wherein the at least one Non-AP STA comprises the second device; the first device receives a sensing establishment response sent by the at least one Non-AP STA; the first device sends a awareness initiation response (Sensing Initiating Response) to the awareness initiating device.

In some embodiments, in the case where the awareness initiating device is not engaged in awareness measurement, in the case where the first device is a Non-AP STA and the second device is an AP, the first device sends awareness measurement results to the second device.

In some embodiments, when the sensing initiation device does not participate in sensing measurement, and when the first device is a Non-AP STA and the second device is an AP, the first device receives a sensing establishment request sent by the second device; the first device sends a perception setup response to the second device.

Specifically, for example, if the awareness initiating device (Sensing Initiator) is not engaged in the awareness measurement (Sensing Measurement), the awareness initiating device (Sensing Initiator) is a Non-AP STA. As shown in fig. 12 and 13, first STA 2 needs to transmit a Sensing Report to the AP, and then the AP transmits the Sensing Report to the Sensing initiator (STA 1).

In some embodiments, in the case where the awareness initiating device participates in the awareness measurement and the first device is the awareness initiating device, the first device receives the awareness measurement result sent by the second device. Further, the first device does not send the perception measurement to the second device.

In some embodiments, in a case where a awareness initiating device participates in awareness measurement and the first device is the awareness initiating device, the first device sends an awareness 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.

In some embodiments, the first device sends the sensing measurement result to the second device in case the sensing initiation device is engaged in the sensing measurement and the second device is the sensing initiation device.

In some embodiments, in a case where a awareness initiating device participates in awareness measurement and the second device is the awareness initiating device, the first device receives an awareness establishment request sent by the second device; and the first device sending a perception establishment response to the second device.

Specifically, for example, if the Sensing initiator device (Sensing Initiator) participates in Sensing measurement (Sensing Measurement), as shown in fig. 14, if the AP is Sensing Initiator, the STA needs to transmit Sensing measurement results (Sensing Report) to the AP, but the AP does not need to transmit Sensing measurement results (Sensing Report) to the STA.

Specifically, for example, if the Sensing initiator device (Sensing Initiator) participates in Sensing measurement (Sensing Measurement), as shown in fig. 15, if the STA is Sensing Initiator, the AP needs to transmit Sensing measurement results (Sensing Report) to the STA, but the STA does not need to transmit Sensing measurement results (Sensing Report) to the AP.

In some embodiments, the awareness establishment request is sent in an awareness establishment request frame, wherein the awareness establishment request frame includes an action field that includes an awareness responding device information field that includes an NDPA sender field whose value is used to indicate that NDPA was sent by the AP or that is used to indicate that NDPA was sent by a device that previously acquired channel usage rights.

Specifically, as shown in fig. 16, for example, a perceived Action frame (Sensing Action frame) is defined, a new Action frame (Action frame) or a No-acknowledgement Action frame (Action No Ack), an Action class (Category) of 4 indicates that the frame is a common Action frame (Public Action frame), a common Action subclass (Public Acton Field) of 46 indicates that the frame is a perceived Action frame (the frame may be represented by any value in the range of 46 to 255), and a perceived subclass (Sensing Subtype) of 2 (may be represented by any value in the range of 0 to 255) indicates that the frame is a perceived establishment request frame (Sensing Setup Request frame).

As shown in fig. 16, in the awareness establishment request frame, a measurement establishment identification (Measurement Setup ID) field: the measurement setup identity is generated by the AP. Partial (Partial) time synchronization function (Timing Synchronization Function, TSF) Timer (Timer): the start time of the first Burst signal (Burst) of advice, all 0's indicate no advice. Burst Period (Burst Period) field: the time interval between two adjacent Burst signals (Burst) is proposed, in 100ms, and a value of 0 indicates no proposal. Burst Duration (Burst Duration) field: the proposed time for one Burst (Burst) to occupy, 4 represents 1ms,5 represents 2ms,6 represents 4ms,7 represents 8ms,8 represents 16ms,9 represents 32ms,10 represents 64ms,11 represents 128ms, and other values remain. AID/UID field: the ID of the awareness responding device (Sensing Responder), 0, is the AID of the associated AP. Immediate Report (Immediate Report) field: when the Sensing response device (Sensing Responder) is used as a Sensing receiving device (Sensing Receiver) to participate in measurement, whether a measurement result needs to be immediately reported or not; the sensory response device (Sensing Responder) acts as a sensory-transmitting device (Sensing Transmitter) to reserve fields for the time of participation in the measurement. NDPA sender field: if both devices in a certain measurement instance (Measurement Instance) support the role of the aware transmitting device (Sensing Transmitter), then an NDPA sender field set to 0 represents that any one of the aware transmitting devices (Sensing Transmitter) (whether AP or STA) that has first acquired channel usage rights) can transmit NDPA frames to turn on the aware measurement during the measurement phase (measurement phase); setting the NDPA sender field to 1 represents that only the AP can send NDPA frame on-aware measurements during the measurement phase (measurement phase). Format and bandwidth (Format And Bandwidth) fields: this field exists when participating in the measurement as a aware transmitting device (Sensing Transmitter), indicating the physical layer protocol data unit (Physical layer protocol data unit, PPDU) format and bandwidth that is proposed for use.

In some embodiments, the awareness setup response is sent through an awareness setup response frame, wherein the awareness setup response frame includes an action field that includes an awareness response device information field that includes an NDPA sender field whose value is used to indicate that NDPA was sent by the AP or that is used to indicate that NDPA was sent by a device that previously acquired channel usage rights.

Specifically, for example, as shown in fig. 17, a perceptual action frame (Sensing Action frame) is defined: a new Action frame (Action frame) or unacknowledged Action frame (Action No Ack), an Action class (Category) of 4 indicates that the frame is a public Action frame (Public Action frame), a public Action subclass (Public Acton Field) value of 46 indicates that the frame is a perceived Action frame (the frame can be represented as a perceived Action frame by any value in the range of 46-255), and a perception subclass (Sensing Subtype) value of 3 (can be represented as a perceived setup response frame (Sensing Setup Request frame) by any value in the range of 0-255).

As shown in fig. 17, in the sense Setup response frame, a Setup Command (Setup Command) field: 0 represents acceptance (Accept); 1 denotes Reject (Reject). Reason Code (Reason Code) field: this field is a reserved value of 0 when the measurement Setup Command (Setup Command) value indicates acceptance. When a measurement Setup Command (Setup Command) field value indicates rejection, 0 indicates that the role indicated in the measurement Setup request is not supported; 1 denotes that PPDU format and bandwidth indicated in the measurement setup request are not supported; 3 to 255. NDPA sender field: if both devices in a certain measurement instance (Measurement Instance) support the role of the aware transmitting device (Sensing Transmitter), then an NDPA sender field set to 0 represents that any one of the aware transmitting devices (Sensing Transmitter) (whether AP or STA) that has first acquired channel usage rights) can transmit NDPA frames to turn on the aware measurement during the measurement phase (measurement phase); setting the NDPA sender field to 1 represents that only the AP can send NDPA frame on-aware measurements during the measurement phase (measurement phase).

In some embodiments, the perceived initiation request (Sensing Initiating Request) is sent over a perceived initiation request frame (Sensing Initiating Request frame). Specifically, for example, as shown in fig. 18, a perceptual action frame (Sensing Action frame) is defined: a new Action frame (Action frame) or unacknowledged Action frame (Action No Ack), an Action class (Category) of 4 indicates that the frame is a public Action frame (Public Action frame), a public Action subclass (Public Acton Field) of value 46 indicates that the frame is a perceived Action frame (the frame can be represented as a perceived Action frame by any value in the range of 46-255), and a perceived subclass (Sensing Subtype) of value 0 (can be represented as a perceived initiation request frame (Sensing Init Request frame) by any value in the range of 0-255).

As shown in fig. 18, in the sense initiation request frame, a sense subclass (SENS Subtype) field: 0 represents a sense initiation request frame (SENS Init Request frame); 1 represents a perceptually initiated response frame (SENS Init Response frame); 2 represents a perception establishment request frame (SENS Setup Request frame); 3 represents a perception establishment response frame (SENS Setup Response frame); 4 represents a perceptual feedback request frame (SENS Feedback Response frame); 5 denotes a perceptual feedback response frame (SENS Feedback Response frame); 6 represents a perceived report frame (SENS Report frame); 7-15. Wherein the values described in this field are only an exemplary introduction, and may be set to other values, as long as it is ensured that the value corresponding to each perceptual sub-type is different from the values of other perceptual sub-types; for example, a value of 2 may represent a sense initiation request frame; a value of 1 may represent a perceptually initiated response frame; as another example, a value of 8 may represent a sense initiation request frame; the value 15 may represent a perceptually initiated response frame, or the like.

As shown in fig. 18, a measurement Setup Command (Setup Command) field: 0 denotes mandatory (Demand); 1 represents a suggestion (Suggest); 2-255. The values described in this field are only an exemplary description, and may be set to other values, so long as it is ensured that the value corresponding to each command is different from the values of other commands; for example, a value of 2 may represent enforcement; the value 1 may represent a suggestion; for another example, a value of 8 may represent enforcement; the value 15 may represent a suggestion or the like.

As shown in fig. 18, the measurement procedure indicating that the AP is recommended to establish a TB or non-TB type is based on a trigger frame (TB/non-TB) field. In one embodiment, a setting of 1 indicates a TB type and a setting of 0 indicates a non-TB type. In another embodiment, a setting of 0 may also be used to indicate a TB type and a setting of 1 may be used to indicate a non-TB type.

As shown in fig. 18, an original Report data (Raw Report) field indicates whether the AP forwards an original measurement result reported by a Receiver-aware device (Receiver). In one embodiment, setting to 1 indicates yes, otherwise setting to 0. In another embodiment, a setting of 0 may also indicate that it is, otherwise, a setting of 1.

As shown in fig. 18, a report result Analysis (Analysis) field indicates whether the AP performs Analysis processing on the reported measurement result. In one embodiment, setting to 1 indicates yes, otherwise setting to 0. In another embodiment, a setting of 0 may also indicate that it is, otherwise, a setting of 1.

As shown in fig. 18, a report result compression Method (compression Method) field indicates an algorithm for the AP to Compress the reported measurement result, 0 indicates no compression, 1 indicates a right singular matrix transpose of the CSI matrix (Rotation of V matrix based on the SVD of CSI matrix), 2 indicates a reduced power delay profile (truncated power delay profile), and 3 indicates a compressed beamforming feedback matrix (compressed beamforming feedback matrix). The values described in this field are only an exemplary description, and may be set to other values, as long as it is ensured that the value corresponding to each algorithm is different from the values of other algorithms.

As shown in fig. 18, analysis information (Analysis Info) field, which indicates parameters required for the AP to analyze the reported measurement result. If the report result Analysis (Analysis) field indicates no, the present field does not exist.

As shown in fig. 18, application type (Use Case KPI) indicates a perception purpose type, 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 remain. The values described in this field are only an exemplary description, and may be set to other values, as long as it is ensured that the corresponding value of each type is different from the values of other types.

As shown in fig. 18, a distance Accuracy (Range Accuracy) field: indicating the accuracy of the calculated distance data of the measurement result. Speed accuracy (Velocity Accuracy) field: indicating the accuracy of the calculated speed data of the measurement result. Angle precision (Angular Accuracy) field: indicating the accuracy of the calculated angle data of the measurement result.

As shown in fig. 18, the number of responding devices (Number of Responders) indicates the number of the perceptually responding device information (response Info) fields contained in the frame. A response device information (response Info) field indicating the perceived response device information. Responding device identity (AID/UID) indicating the ID of the perceived responding device (response), associated ID for Associated STA, unassociated ID for Unassociated STA, assigned space for AP, assigned by UID consistent with AID, 0 is AID for Associated AP. A sensor signal receiving device (Receiver) indicates whether the sensor response device (sensor) is involved in the measurement as a sensor signal receiving device (Receiver). In one embodiment, setting to 1 indicates yes, otherwise setting to 0. In another embodiment, a setting of 0 may also indicate that it is, otherwise, a setting of 1.

As shown in fig. 18, the sensor Transmitter (Transmitter) indicates whether the sensor response device (sensor) participates in the measurement as a sensor signal Transmitter (Transmitter). In one embodiment, setting to 1 indicates yes, otherwise setting to 0. In another embodiment, a setting of 0 may also indicate that it is, otherwise, a setting of 1.

As shown in fig. 18, the result Immediate Report indicates whether the measurement result needs Immediate Report when the sensing response device (sensor) participates in measurement as a sensing reception device (Receiver). In one embodiment, a setting of 1 indicates yes and a setting of 0 indicates no.

As shown in fig. 18, this field is a reserved field when the sensing response device (sensor) participates in measurement as a sensing transmission device (Transmitter). The threshold value information (Threashold Measurement Info) is measured based on the setting information of the threshold value measurement.

In some embodiments, the sense initiation response (Sensing Initiating Response) is sent over a sense initiation response frame (Sensing Initiating Response frame). As shown in fig. 19, a perceptual action frame (Sensing Action frame) is defined: a new Action frame (Action frame) or unacknowledged Action frame (Action No Ack), an Action class (Category) of 4 indicates that the frame is a public Action frame (Public Action frame), a public Action subclass (Public Acton Field) value of 46 indicates that the frame is a perceived Action frame (the frame can be represented as a perceived Action frame by any value in the range of 46-255), and a perception subclass (Sensing Subtype) value of 1 (can be represented as a perceived initiation response frame (Sensing Init Response frame) by any value in the range of 0-255).

As shown in fig. 19, in the sense initiation response frame, a Setup Command (Setup Command) field: 0 represents acceptance (Accept); 1 denotes Reject (Reject); 2-255. The values described in this field are only an exemplary description, and may be set to other values, as long as it is ensured that the value corresponding to each command is different from the values of other commands.

As shown in FIG. 19, the Reason Code (Reason Code) field is reserved value 0 when the measurement Setup Command (Setup Command) value indicates acceptance. When the measurement Setup Command (Setup Command) value indicates rejection, 0 indicates that the establishment of a perceived measurement as a proxy is not supported; 1 to 255; the values described in this field are only an exemplary description, and may be set to other values, as long as it is ensured that the value corresponding to each cause code is different from the values of other cause codes.

As shown in fig. 19, a measurement setup ID (Measurement Setup ID) field indicates a measurement setup identifier, which can identify measurement parameters used by the belonging measurement instance, and this field value is generated by the AP in order to ensure uniqueness within the ESS range. This field exists when the measurement Setup Command (Setup Command) value indicates acceptance. This field may not exist or be a reserved value of 0 when the measurement Setup Command (Setup Command) value indicates rejection.

As shown in fig. 19, the measurement procedure of the established TB or non-TB type is determined based on a trigger frame (TB/non-TB) field. In one embodiment, a setting of 1 indicates a TB type and a setting of 0 indicates a non-TB type. In another embodiment, a setting of 0 may also be used to indicate a TB type and a setting of 1 may be used to indicate a non-TB type.

As shown in fig. 19, an original Report data (Raw Report) field, which determines whether the AP forwards the original measurement result reported by the Receiver-aware device (Receiver). In one embodiment, setting to 1 indicates yes, otherwise setting to 0. In another embodiment, a setting of 0 may also indicate that it is, otherwise, a setting of 1.

As shown in fig. 19, a report result Analysis (Analysis) field that determines whether the AP performs Analysis processing on the reported measurement result. In one embodiment, setting to 1 indicates yes, otherwise setting to 0. In another embodiment, a setting of 0 may also indicate that it is, otherwise, a setting of 1.

As shown in fig. 19, a report result compression Method (compression Method) field includes an algorithm for determining that an AP compresses a report measurement result, 0 represents no compression, 1 represents a right singular matrix transpose of a CSI matrix (Rotation of V matrix based on the SVD of CSI matrix), 2 represents a reduced power delay profile (truncated power delay profile), and 3 represents a compressed beamforming feedback matrix (compressed beamforming feedback matrix). The values described in this field are only an exemplary description, and may be set to other values, as long as it is ensured that the value corresponding to each algorithm is different from the values of other algorithms.

As shown in fig. 19, schedule information (Schedule Info) field: measured time schedule information. The synchronization time (Partial TSF Timer) is the determined start time of the first measurement signal, all 0 being the reserved value. The Burst Period (Burst Period) is measured by determining the time interval between two adjacent measurement signals, wherein the unit is 100 milliseconds (ms), and the value of 0 is a reserved value. The Burst Duration (Burst Duration) is measured by determining the time taken by a measurement signal, 4 representing 1ms,5 representing 2ms,6 representing 4ms,7 representing 8ms,8 representing 16ms,9 representing 32ms,10 representing 64ms,11 representing 128ms, and the other values remaining. Number of responding devices (Number of Responders) indicates the number of perceptually responding device information (responser Info) fields contained in the frame. A response device information (response Info) field indicating the perceived response device information. A Reason Code (Reason Code) field, which is a reserved value of 0 when the measurement Setup Command (Setup Command) value indicates acceptance. 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. The values described in this field are only an exemplary description, and may be set to other values, as long as it is ensured that the value corresponding to each cause code is different from the values of other cause codes.

In some embodiments, the NDPA is transmitted by the sensing transmission device in case the measurement instance corresponding to the NDPA is set to support unidirectional sensing measurements during the sensing establishment phase.

Specifically, if only one-way Sensing measurement is supported, it means that one of the AP and Non-AP STA supports only a Sensing transmitting device (Sensing Transmitter) and the other supports only a Sensing receiving device (Sensing Receiver).

In some embodiments, after obtaining the channel usage rights (Contention based access), the aware transmitting device (Sensing Transmitter) may directly transmit ndpa+ndp for unidirectional Sensing Measurement. I.e. the device transmitting NDPA frames by default directly transmits NDP for unidirectional perceptual measurement after SIFS time.

Specifically, for example, as shown in fig. 20, if the setting of a certain measurement instance (Measurement Instance) in the Sensing Setup phase is: the AP is a Sensing transmitting device (Sensing Transmitter) and the Non-AP STA is a Sensing receiving device (Sensing Receiver), then the AP transmits ndpa+ndp for Sensing measurements (Sensing measurement).

In some embodiments, after obtaining the channel usage rights (Contention based access) by the aware transmitting device (Sensing Transmitter), the aware transmitting device may directly transmit the NDPA, and then the aware transmitting device and/or the aware receiving device determine whether to transmit the NDP according to the first information.

In some embodiments, the first device sends NDP to the second device if the first information indicates that the device sending the NDPA sends NDP and the device receiving the NDPA does not send NDP, in a case where the measurement instance corresponding to the NDPA is set to support unidirectional sensing measurements during the sensing establishment phase.

As another specific example, as shown in fig. 21, if the setting of a certain measurement instance (Measurement Instance) in the Sensing Setup phase is: the Non-AP STA is a Sensing transmitting device (Sensing Transmitter), the AP is a Sensing receiving device (Sensing Receiver), and then the Non-AP STA transmits NDPA+NDP for Sensing measurement (Sensing measurement).

Specifically, for example, as shown in fig. 20, if the setting of a certain measurement instance (Measurement Instance) in the Sensing Setup phase is: the AP is a Sensing transmitting device (Sensing Transmitter), the Non-AP STA is a Sensing receiving device (Sensing Receiver), then the AP transmits the NDPA, and the first information indicates: the NDP is transmitted unidirectionally, and the device transmitting the NDPA transmits the NDP, and the device receiving the NDPA does not transmit the NDP, in which case the AP transmits the NDP for sensing measurements (sensing measurement).

As another specific example, as shown in fig. 21, if the setting of a certain measurement instance (Measurement Instance) in the Sensing Setup phase is: the Non-AP STA is a Sensing transmitting device (Sensing Transmitter), the AP is a Sensing receiving device (Sensing Receiver), then the Non-AP STA transmits an NDPA, and a first information indication: the NDP is transmitted unidirectionally, and the device transmitting the NDPA transmits the NDP, and the device receiving the NDPA does not transmit the NDP, in which case the Non-AP STA transmits the NDP for sensing measurements (sensing measurement).

In some embodiments, the first device receives the NDP transmitted by the second device in a case where the measurement instance corresponding to the NDPA is set to support unidirectional sensing measurement in the sensing establishment phase, and in a case where the first information indicates that the device transmitting the NDPA does not transmit the NDP, and the device receiving the NDPA transmits the NDP.

Specifically, for example, as shown in fig. 22, if the setting of a certain measurement instance (Measurement Instance) in the Sensing Setup phase is: the AP is a Sensing transmitting device (Sensing Transmitter), the Non-AP STA is a Sensing receiving device (Sensing Receiver), then the AP transmits the NDPA, and the first information indicates: the NDP is unidirectionally transmitted, and the device transmitting the NDPA does not transmit the NDP, and the device receiving the NDPA transmits the NDP, in which case the Non-AP STA transmits the NDP for sensing measurement (sensing measurement).

As another specific example, as shown in fig. 23, if the setting of a certain measurement instance (Measurement Instance) in the Sensing Setup phase is: the Non-AP STA is a Sensing transmitting device (Sensing Transmitter), the AP is a Sensing receiving device (Sensing Receiver), then the Non-AP STA transmits an NDPA, and a first information indication: the NDP is transmitted unidirectionally, and the device transmitting the NDPA does not transmit the NDP, and the device receiving the NDPA transmits the NDP, in which case the AP transmits the NDP for sensing measurements (sensing measurement).

In some embodiments, in a case where the measurement instance corresponding to the NDPA is set to support unidirectional sensing measurement in the sensing establishment phase, and in a case where the first device is the sensing initiation device, the first device receives a sensing measurement result sent by the second device.

In some embodiments, in a case where the measurement instance corresponding to the NDPA is set to support unidirectional sensing measurement in the sensing establishment phase, and in a case where the first device is the sensing initiation device, the first device does not send a sensing measurement result to the second device.

In some embodiments, the first device sends a sensing measurement result to the second device in a case where the measurement instance corresponding to the NDPA is set to support unidirectional sensing measurement in a sensing establishment phase, and in a case where the second device is the sensing initiation device.

Specifically, for example, as shown in fig. 24, in the case where the Sensing initiator (Sensing Initiator) participates in the Sensing measurement (Sensing Measurement), if the Sensing transmitter (Sensing Transmitter) (AP or STA) is the Sensing initiator (Sensing Initiator), the Sensing Receiver (Sensing Receiver) does not need to send a Sensing Report (Sensing Report) to Sensing Initiator for the unidirectional Sensing measurement, because Sensing Initiator can directly obtain the Sensing result through NDP. The Sensing reception device (STA or AP) needs to transmit a Sensing Report (Sensing Report) to the Sensing transmission device (Sensing Transmitter), and the Sensing transmission device (Sensing Transmitter) may obtain a Sensing result through the Sensing Report (Sensing Report).

Specifically, for example, as shown in fig. 25, in the case where the Sensing initiator (Sensing Initiator) does not participate in the Sensing measurement (Sensing Measurement), for unidirectional Sensing measurement, the Sensing initiator (Sensing Initiator) is a Non-AP STA (i.e., STA 1), and as shown in fig. 25, the Sensing Receiver is a Non-AP STA (i.e., STA 2), then STA2 transmits a Sensing Report (Sensing Report) to the AP, and the AP forwards the Sensing Report (Sensing Report) to Sensing Initiator (i.e., STA 1).

In particular, for example, as shown in fig. 26, in the case where the Sensing initiation device (Sensing Initiator) is not engaged in the Sensing measurement (Sensing Measurement), for unidirectional Sensing measurement, the Sensing initiation device (Sensing Initiator) is a Non-AP STA (i.e., STA 1), and as shown in fig. 26, the Sensing reception device (Sensing Receiver) is an AP, then the AP directly transmits a Sensing Report (Sensing Report) to the Sensing initiation device (Sensing Initiator) (i.e., STA 1).

In some embodiments, in a case where a measurement instance corresponding to the NDPA is set to support unidirectional sensing measurement in a sensing establishment phase, and in a case where the first device is the sensing initiation device, the first device sends a sensing establishment request to the second device; the first device receives a perception establishment response sent by the second device.

In some embodiments, in a case where a measurement instance corresponding to the NDPA is set to support unidirectional sensing measurement in a sensing establishment phase, and in a case where the second device is the sensing initiation device, the first device receives a sensing establishment request sent by the second device; the first device sends a perception setup response to the second device.

In some embodiments, if only 1 pair of devices participate in the perception measurement (Sensing Measurement), during the perception establishment phase (Sensing Setup phase), one of the 1 pair of devices is the perception initiating device (Sensing Initiator) and the other is the perception responding device (Sensing Responder). As shown in fig. 27, in this scenario, whether Sensing Initiator and Sensing Responder are APs or STAs, a Sensing Setup is initiated (Sensing Setup) by sending a Sensing Setup request frame (Sensing Setup Request frame) at Sensing Initiator, and then a Sensing Setup response (Sensing Setup Response frame) is returned at Sensing Responder to complete the Sensing Setup phase (Sensing Setup phase).

In some embodiments, in the awareness establishment phase (Sensing Setup phase), if there are multiple pairs of devices engaged in the awareness measurements (Sensing Measurement) and the awareness initiating device (Sensing Initiator) is able to engage in all of the awareness measurements (Sensing Measurement) or awareness measurement instances (Sensing Measurement Instance), then this means that the awareness initiating device (Sensing Initiator) is an AP. As shown in fig. 28, in this scenario, AP (Sensing Initiator) can perform Sensing Setup one-to-one with each STA (Sensing Responder to N) to conform to the paired (pairing) Sensing (Sensing) rule.

In some embodiments, in the sense setup phase (Sensing Setup phase), if there are multiple pairs of devices engaged in the sense measurements (Sensing Measurement) and the sense initiation device (Sensing Initiator) is not engaged or engaged in part of the sense measurements (Sensing Measurement) or sense measurement instance (Sensing Measurement Instance), then this means that the sense initiation device (Sensing Initiator) is a Non-AP STA (i.e., STA 1). As shown in fig. 29, in this scenario, STA1 may send a Sensing initiation request frame (Sensing Initialing Request frame) to the AP (i.e., sensing response device 1), let the AP perform one-to-one Sensing Setup (Sensing Setup) with the Sensing response devices (Sensing Responder) (2-N or Sensing Initiator may also be included) that participate in the Sensing measurement (Sensing Measurement), and finally the AP feeds back the result of the Sensing Setup to Sensing Initiator through the Sensing initiation response frame (Sensing Initiating Response frame).

In some embodiments, the sensing measurements are sent through a sensing report frame (Sensing Report frame). Specifically, as shown in fig. 30, a perceptual action frame (Sensing Action frame) is defined: a new Action frame (Action frame) or unacknowledged Action frame (Action No Ack), an Action class (Category) of 4 indicates that the frame is a public Action frame (Public Action frame), a public Action subclass (Public Acton Field) of value 46 indicates that the frame is a perceived Action frame (the frame can be represented as a perceived Action frame by any value in the range of 46-255), and a perceived subclass (Sensing Subtype) of value 6 (can be represented as a perceived report frame (Sensing Report frame) by any value in the range of 0-255).

As shown in fig. 30, report number (Number of Reports) field: the number of measurement results included in the frame is 0 for 1 measurement result, and 255 for 256 measurement results.

As shown in fig. 30, an original Report data (Raw Report) field indicates whether the frame contains an original measurement result reported by a Receiver (Receiver). In one embodiment, setting to 1 indicates yes, otherwise setting to 0. In another embodiment, a setting of 0 may also indicate that it is, otherwise, a setting of 1.

As shown in fig. 30, a report result Analysis (Analysis) field indicates whether the frame contains Analysis processing on the reported original measurement result. In one embodiment, setting to 1 indicates yes, otherwise setting to 0. In another embodiment, a setting of 0 may also indicate that it is, otherwise, a setting of 1.

As shown in fig. 30, a report result compression Method (compression Method) field indicates an algorithm for compressing the reported original measurement result in the frame, 0 indicates no compression, 1 indicates right singular matrix transposition of CSI matrix (Rotation of V matrix based on the SVD of CSI matrix), 2 indicates reduced power delay profile (truncated power delay profile), and 3 indicates compressed beamforming feedback matrix (compressed beamforming feedback matrix). The values described in this field are only an exemplary description, and may be set to other values, as long as it is ensured that the value corresponding to each algorithm is different from the values of other algorithms.

As shown in fig. 30, analysis Result (Analysis Result) field indicating a Result after Analysis processing of the reported original measurement Result by the AP, for example, the presence of a person is detected, the number of persons is detected, the number of times of breathing of a person is detected, and the like. A report results Analysis (Analysis) field indicates that this field exists when it contains Analysis processing of the reported raw measurement results, or else does not exist. A 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, 255 represents 256 measurement results. Control measurement (Measurement Report) field: and measuring result data. Control field (Report Control) field: the presence of the subfields contained in the measurement result (Measurement Report) field is controlled. The sensing signal transmitting equipment identification (TX ID) field is the AID/UID sensing signal receiving equipment identification (RX ID) field of the sensing signal transmitting equipment identification (Transmitter) corresponding to the measurement result is the AID/UID measurement instance identification (Measurement Instance ID) of the sensing signal receiving equipment identification (Receiver) corresponding to the measurement result is the measurement instance identification corresponding to the measurement result. Measurement Timestamp (Timestamp) the time of occurrence of the measurement instance. Result data (Report), measurement result data, such as CSI data.

In the embodiment of the application, when a plurality of devices participate in the Sensing measurement, a mechanism of Sensing Setup (Sensing Setup) by which the Sensing initiating device (Sensing Initiator) directly performs pairing (pairing) with at least one Sensing responding device (Sensing Responder) and a mechanism of Sensing Setup (Sensing Setup) by which the Sensing initiating device (Sensing Initiator) requests the AP proxy to perform pairing (pairing) with each Sensing responding device (Sensing Responder) are designed according to whether the Sensing initiating device (Sensing Initiator) participates in the subsequent Sensing measurement (Sensing Measurement). On the premise of conforming to the paired (Pairwise) Sensing rule, the efficiency of Sensing Setup is improved.

In the embodiment of the 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 NDPA frame designed may also instruct a sensing measurement instance (Sensing Measurement Instance) to perform unidirectional Sensing Measurement or bidirectional Sensing Measurement. Further, the NDPA frame may indicate who transmitted the NDP when unidirectional Sensing Measurement, and may also indicate the transmission order of the NDP when performing bidirectional Sensing Measurement. The flexibility of the perception measurement is improved.

Therefore, in the embodiment of the application, for unidirectional NDP transmission, the device for transmitting the NDP may be indicated by the NDPA, and for bidirectional NDP transmission, the order of transmitting the NDP may be indicated by the NDPA, so that non-TB sensing measurement may be implemented, and efficiency of sensing establishment and flexibility of sensing measurement may be improved on the premise of conforming to paired (paired) sensing measurement.

The method embodiments of the present application are described in detail above with reference to fig. 5 to 30, and the apparatus embodiments of the present application are described in detail below with reference to fig. 31 to 32, it being understood that the apparatus embodiments and the method embodiments correspond to each other, and similar descriptions may refer to the method embodiments.

Fig. 31 shows a schematic block diagram of a device 300 for wireless communication according to an embodiment of the present application. The wireless communication apparatus 300 is a first apparatus, and as shown in fig. 31, the wireless communication apparatus 300 includes:

a communication unit 310 configured to send NDPA to the second device;

wherein the NDPA includes first information indicating one of:

unidirectional transmission NDP or bidirectional transmission NDP;

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

In some embodiments, a frame carrying the NDPA includes a general information field and a site information field, wherein the general information field includes a first field for indicating that the current measurement is a non-trigger-based perceptual measurement and the NDP sequence field includes a second field for indicating a space-time stream number of the NDP of the downlink measurement and a third field for indicating a repetition number of long training field LTF symbols of the NDP of the downlink measurement.

In some embodiments, the NDPA is sent by the access point AP in case the measurement instance corresponding to the NDPA is set to support bidirectional awareness measurements during the awareness establishment phase.

In some embodiments, the measurement instance corresponding to the NDPA is set to:

the AP transmits the NDPA and the Non-access point station Non-AP STA waits for the NDPA transmitted by the AP.

In some embodiments, the NDPA is transmitted by a device that first acquired channel usage rights in the case where the measurement instance corresponding to the NDPA is set to support bidirectional sensing measurements during the sensing establishment phase.

In some embodiments, the second information is an NDPA sender field in a first frame, wherein the first frame is a perceptual setup request frame or a perceptual setup response frame.

In some embodiments, the first frame includes an action field including a sensory response device information field including the NDPA sender field.

In some embodiments, the AP is set to allow as a aware transmitting device and a aware receiving device during the aware setup phase, and the Non-AP STA is set to allow as a aware transmitting device and a aware receiving device during the aware setup phase.

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

In some embodiments, the awareness initiating device obtains awareness measurements through the AP without the awareness initiating device participating in the awareness measurements.

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 the at least one Non-AP STA.

In some embodiments, in the case where 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.

In some embodiments, the communication unit 310 is configured to receive a perception initiation request sent by the perception initiation device;

the communication unit 310 is configured to send a sensing establishment request to at least one Non-AP STA, where the at least one Non-AP STA includes the second device;

the communication unit 310 is configured to receive a sensing establishment response sent by the at least one Non-AP STA;

the communication unit 310 is configured to send a awareness initiating response to the awareness initiating device.

In some embodiments, where 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.

In some embodiments, the communication unit 310 is configured to receive a perception establishment request sent by the second device;

the communication unit 310 is configured to send a perception establishment response to the second device.

In some embodiments, in a case where the awareness initiating device participates in the awareness measurement and the first device is the awareness initiating device, the communication unit 310 is configured to receive the awareness measurement result sent by the second device.

In some embodiments, the communication unit 310 is configured to not send the sensing measurement result to the second device.

In some embodiments, the communication unit 310 is configured to send a request for a awareness establishment to at least one Non-AP STA, where the at least one Non-AP STA includes the second device;

the communication unit 310 is configured to receive a sensing setup response sent by the at least one Non-AP STA.

In some embodiments, the communication unit 310 is configured to send the sensing measurement result to the second device in a case where the sensing initiation device participates in the sensing measurement and the second device is the sensing initiation device.

In some embodiments, the communication unit 310 is configured to send NDP to the second device if the first information indicates that the device sending the NDPA sends NDP and the device receiving the NDPA does not send NDP.

In some embodiments, in the case that the first device is the awareness initiating device, the communication unit 310 is configured to receive the awareness measurement result sent by the second device.

In some embodiments, the communication unit 310 is configured to receive the NDP sent by the second device, 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.

In some embodiments, in the case that the first device is the awareness initiating device, the communication unit 310 is configured to not send awareness measurements to the second device.

In some embodiments, in the case that the second device is the awareness initiating device, the communication unit 310 is configured to send awareness measurements to the second device.

In some embodiments, the communication unit 310 is configured to send a request for a perception establishment to the second device;

the communication unit 310 is configured to receive a perception establishment response sent by the second device.

In some embodiments, the first device is a aware transmitting device and the second device is a aware receiving device; or,

the first device is a perception receiving device and the second device is a perception transmitting device.

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

It should be understood that the wireless communication device 300 according to the embodiments of the present application may correspond to the first device in the method embodiments of the present application, and the foregoing and other operations and/or functions of each unit in the wireless communication device 300 are respectively for implementing the corresponding flow of the first device in the method 200 shown in fig. 5 to 30, and are not described herein for brevity.

Fig. 32 shows a schematic block diagram of a device 400 for wireless communication according to an embodiment of the present application. The wireless communication apparatus 400 is a second apparatus, and as shown in fig. 32, the wireless communication apparatus 400 includes:

a communication unit 410, configured to receive an NDPA sent by the first device;

wherein the NDPA includes first information indicating one of:

Unidirectional transmission NDP or bidirectional transmission NDP;

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 for indicating that the current measurement is a non-trigger-based perceptual measurement and the NDP command field includes a second field for indicating a space-time stream number of the NDP of the downlink measurement and a third field for indicating a repetition number of long training field LTF symbols of the NDP of the downlink measurement.

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

In some embodiments, where 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.

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

the communication unit 410 is further configured to send a perception establishment response to the first device.

In some embodiments, in the case where 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.

18. The method of claim 17, wherein the method further comprises:

the communication unit 410 is further configured to receive a perception initiation request sent by the perception initiation device;

the communication unit 410 is further configured to send a request for a awareness establishment to at least one Non-AP STA, where the at least one Non-AP STA includes the first device;

the communication unit 410 is further configured to receive a sensing setup response sent by the at least one Non-AP STA;

the communication unit 410 is further configured to send a awareness initiating response to the awareness initiating device.

In some embodiments, the communication unit 410 is further configured to send the sensing measurement result to the first device in case the sensing initiation device participates in the sensing measurement and the first device is the sensing initiation device.

In some embodiments, the communication unit 410 is further configured to not send the sensing measurement result to the first device.

In some embodiments, in the case where the awareness initiating device participates in the awareness measurement and the second device is the awareness initiating device, the communication unit 410 is further configured to receive the awareness measurement result sent by the first device.

In some embodiments, the second device does not send the perception measurement to the first device.

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

the communication unit 410 is further configured to receive a sensing setup response sent by the at least one Non-AP STA.

In some embodiments, the communication unit 410 is further configured to receive the NDP sent by the first device, 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.

In some embodiments, where the first device is the awareness initiating device, the communication unit 410 is further configured to send awareness measurements to the first device.

In some embodiments, the second device does not send the awareness measurement to the first device in the event that the second device is the awareness initiating device.

In some embodiments, the communication unit 410 is further configured to send NDP to the first device in the case where the first information indicates that the device sending the NDPA does not send NDP, and the device receiving the NDPA sends NDP.

In some embodiments, in the case that the second device is the awareness initiating device, the communication unit 410 is further configured to receive the awareness measurement result sent by the first device.

In some embodiments, the communication unit 410 is further configured to send a perception establishment request to the first device;

the communication unit 410 is further configured to receive a perception establishment response sent by the first device.

It should be understood that the wireless communication device 400 according to the embodiments of the present application may correspond to the second device in the embodiments of the method of the present application, and the foregoing and other operations and/or functions of each unit in the wireless communication device 400 are respectively for implementing the corresponding flow of the second device in the method 200 shown in fig. 5 to 30, and are not described herein for brevity.

Fig. 33 is a schematic structural diagram of a communication device 500 provided in an embodiment of the present application. The communication device 500 shown in fig. 33 comprises a processor 510, from which the processor 510 may call and run a computer program to implement the method in the embodiments of the present application.

In some embodiments, as shown in fig. 33, the communication device 500 may also include a memory 520. Wherein the processor 510 may call and run a computer program from the memory 520 to implement the methods in embodiments of the present application.

Wherein the memory 520 may be a separate device from the processor 510 or may be integrated into the processor 510.

In some embodiments, as shown in fig. 33, the communication device 500 may further include a transceiver 530, and the processor 510 may control the transceiver 530 to communicate with other devices, and in particular, may transmit information or data to other devices, or receive information or data transmitted by other devices.

Wherein the transceiver 530 may include a transmitter and a receiver. The transceiver 530 may further include antennas, the number of which may be one or more.

In some embodiments, the communication device 500 may be specifically a first device in the embodiments of the present application, and the communication device 500 may implement a corresponding flow implemented by the first device in each method in the embodiments of the present application, which is not described herein for brevity.

In some embodiments, the communication device 500 may be specifically a second device in the embodiments of the present application, and the communication device 500 may implement a corresponding flow implemented by the second device in each method in the embodiments of the present application, which is not described herein for brevity.

Fig. 34 is a schematic structural view of an apparatus of an embodiment of the present application. The apparatus 600 shown in fig. 34 includes a processor 610, and the processor 610 may call and run a computer program from a memory to implement the methods in the embodiments of the present application.

In some embodiments, as shown in fig. 34, the apparatus 600 may further include a memory 620. Wherein the processor 610 may call and run a computer program from the memory 620 to implement the methods in embodiments of the present application.

The memory 620 may be a separate device from the processor 610 or may be integrated into the processor 610.

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 in particular, may acquire information or data sent by the other devices or chips.

In some embodiments, the apparatus 600 may further comprise an output interface 640. Wherein the processor 610 may control the output interface 640 to communicate with other devices or chips, and in particular, may output information or data to other devices or chips.

In some embodiments, the apparatus may be applied to the first device in the embodiments of the present application, and the apparatus may implement a corresponding flow implemented by the first device in each method in the embodiments of the present application, which is not described herein for brevity.

In some embodiments, the apparatus may be applied to the second device in the embodiments of the present application, and the apparatus may implement a corresponding flow implemented by the second device in each method in the embodiments of the present application, which is not described herein for brevity.

In some embodiments, the device mentioned in the embodiments of the present application may also be a chip. For example, a system-on-chip or a system-on-chip, etc.

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

The first device 710 may be configured to implement the corresponding function implemented by the first device in the above method, and the second device 720 may be configured to implement the corresponding function implemented by the second device in the above method, which is not described herein for brevity.

It should be appreciated that the processor of an embodiment of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The processor may be a general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in hardware, in a decoded processor, or in a combination of hardware and software modules in a decoded processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

It will be appreciated that the memory in embodiments of the present application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (Double Data Rate SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that the above memory is exemplary but not limiting, and for example, the memory in the embodiments of the present application may be Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), direct RAM (DR RAM), and the like. That is, the memory in embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

Embodiments of the present application also provide a computer-readable storage medium for storing a computer program.

In some embodiments, the computer readable storage medium may be applied to the first device in the embodiments of the present application, and the computer program causes the computer to execute the corresponding flow implemented by the first device in the methods in the embodiments of the present application, which is not described herein for brevity.

In some embodiments, the computer readable storage medium may be applied to the second device in the embodiments of the present application, and the computer program causes the computer to execute the corresponding flow implemented by the second device in the methods in the embodiments of the present application, which is not described herein for brevity.

Embodiments of the present application also provide a computer program product comprising computer program instructions.

In some embodiments, the computer program product may be applied to the first device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding flow implemented by the first device in the methods in the embodiments of the present application, which is not described herein for brevity.

In some embodiments, the computer program product may be applied to the second device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding flow implemented by the second device in the methods in the embodiments of the present application, which is not described herein for brevity.

In some embodiments, the computer program may be applied to the first device in the embodiments of the present application, and when the computer program runs on a computer, the computer is caused to perform a corresponding flow implemented by the first device in each method in the embodiments of the present application, which is not described herein for brevity.

In some embodiments, the computer program may be applied to the second device in the embodiments of the present application, and when the computer program runs on a computer, the computer is caused to perform the corresponding flow implemented by the second device in each method in the embodiments of the present application, which is not described herein for brevity.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of 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.

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

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. For such understanding, the technical solutions of the present application may be embodied in essence or in a part contributing to the prior art or in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A method of wireless communication, comprising:

the first device sends a physical layer protocol data unit announcement (NDPA) without data to the second device;

wherein the NDPA includes first information for indicating one of:

unidirectional sending of a physical layer protocol data unit (NDP) without data or bidirectional sending of the NDP;

the device for transmitting the NDPA firstly transmits NDP or the device for receiving the NDPA firstly transmits NDP;

unidirectional NDP is sent, NDP is sent by the device sending the NDPA, and NDP is not sent by the device receiving the NDPA;

the method comprises the steps that NDP is sent in a two-way mode, and equipment for sending the NDPA sends the NDP first, and equipment for receiving the NDPA sends the NDP;

the device which receives the NDPA firstly transmits the NDP, and the device which transmits the NDPA then transmits the NDP;

And the device which transmits the NDPA does not transmit the NDP, and the device which receives the NDPA transmits the NDP.
The method of claim 1, wherein the first information is an NDP sequence field in a frame carrying the NDPA.
The method of claim 2, wherein a frame carrying the NDPA comprises a generic information field and a site information field, wherein the generic information field comprises a first field for indicating that the current measurement is a non-trigger-based perceptual measurement and the NDP sequence field, and the site information field comprises a second field for indicating a number of space-time streams of the NDP for the downlink measurement and a third field for indicating a number of repetitions of long training field, LTF, symbols of the NDP for the downlink measurement.
A method according to any one of claims 1 to 3, wherein the perceptual measurement performed in the NDPA corresponding measurement instance comprises at least one of: uplink sensing measurement, downlink sensing measurement and bidirectional sensing measurement.
The method according to any of claims 1 to 4, wherein the NDPA is sent by the access point AP in case the measurement instance corresponding to the NDPA is set to support bidirectional-aware measurement during the awareness establishment phase.
The method of claim 5, wherein the NDPA corresponding measurement instance is set to:

the AP transmits the NDPA and the Non-access point station Non-AP STA waits for the NDPA transmitted by the AP.
The method of any of claims 1 to 4, wherein the NDPA is sent by a device that first acquired channel usage rights in case the measurement instance for which the NDPA corresponds is set to support bidirectional perceptual measurement during a perceptual establishment phase.
The method according to any one of claim 1 to 4,

and under the condition that the measurement instance corresponding to the NDPA is set to support bidirectional sensing measurement in a sensing establishment stage, configuring second information in the sensing establishment stage, wherein the second information is used for indicating that the NDPA is sent by an AP, or the second information is used for indicating that the NDPA is sent by equipment which acquires channel use rights first.
The method of claim 8, wherein the second information is an NDPA sender field in a first frame, wherein the first frame is a perceptual setup request frame or a perceptual setup response frame.
The method of claim 9, wherein the first frame comprises an action field comprising a perceptual response device information field comprising the NDPA sender field.
The method according to any one of claim 5 to 10, wherein,

the AP is set to allow to act as a sensing transmitting device and a sensing receiving device in the sensing establishment phase, and the Non-AP STA is set to allow to act as a sensing transmitting device and a sensing receiving device in the sensing establishment phase.
The method of any one of claims 5 to 11, wherein the method further comprises:

and the first equipment sends the NDP to the second equipment according to the first information, and/or the first equipment receives the NDP sent by the second equipment according to the first information.
The method according to any of claims 5 to 12, wherein the perception initiating device obtains the perception measurement result through the AP in case the perception initiating device is not involved in the perception measurement.
The method of claim 13, wherein the awareness initiating device is a Non-AP STA and the awareness initiating device triggers establishment of an awareness session between an AP and at least one Non-AP STA.
The method of claim 13 or 14, wherein, in the case where the first device is an AP and the second device is a Non-AP STA, the method further comprises:

The first device receives a perception measurement result sent by the second device.
The method of claim 15, wherein 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 comprises the second device;

the first equipment 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.
The method of claim 13 or 14, wherein, in the case where the first device is a Non-AP STA and the second device is an AP, the method further comprises:

the first device sends a perception measurement to the second device.
The method of claim 17, wherein the method further comprises:

the first equipment receives a perception establishing request sent by the second equipment;

the first device sends a perception establishment response to the second device.
The method of any of claims 5 to 12, wherein in the case where a perception initiating device is involved in a perception measurement and the first device is the perception initiating device, the method further comprises:

The first device receives a perception measurement result sent by the second device.
The method of claim 19, wherein the method further comprises:

the first device does not send a perception measurement to the second device.
The method of claim 19 or 20, 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 comprises the second device;

the first device receives a sensing establishment response sent by the at least one Non-AP STA.
The method of any of claims 5 to 12, wherein in the case where a perception initiating device is involved in a perception measurement and the second device is the perception initiating device, the method further comprises:

the first device sends a perception measurement to the second device.
The method of claim 22, wherein the method further comprises:

the first equipment receives a perception establishing request sent by the second equipment;

the first device sends a perception establishment response to the second device.
The method of claim 16, 18, 21 or 23, wherein the awareness establishment request is sent through an awareness establishment request frame, wherein the awareness establishment request frame includes an action field that includes an awareness response device information field that includes an NDPA sender field whose value is used to indicate that NDPA was sent by an AP or whose value is used to indicate that NDPA was sent by a device that previously acquired channel usage rights.
The method of claim 16, 18, 21 or 23, wherein the awareness setup response is sent through an awareness setup response frame, wherein the awareness setup response frame includes an action field that includes an awareness response device information field that includes an NDPA sender field whose value is used to indicate that NDPA was sent by the AP or whose value is used to indicate that NDPA was sent by a device that previously acquired channel usage rights.
The method of any of claims 1 to 4, wherein the NDPA is transmitted by a sensing transmission device in case the measurement instance corresponding to the NDPA is set to support unidirectional sensing measurements during a sensing establishment phase.
The method of claim 26, wherein, in a case where the first information indicates that a device transmitting the NDPA transmits NDP and a device receiving the NDPA does not transmit NDP, the method further comprises:

the first device sends an NDP to the second device.
The method of claim 27, wherein, in the case where the first device is the awareness initiating device, the method further comprises:

The first device receives a perception measurement result sent by the second device.
The method of claim 26, wherein, in the case where the first information indicates that a device transmitting the NDPA is not transmitting NDP, and a device receiving the NDPA is transmitting NDP, the method further comprises:

the first device receives the NDP sent by the second device.
The method of claim 29, wherein, in the case where the first device is the awareness initiating device, the method further comprises:

the first device does not send a perception measurement to the second device.
The method of claim 30, wherein, in the case where the second device is the awareness initiating device, the method further comprises:

the first device sends a perception measurement to the second device.
The method of claim 28 or 30, wherein the method further comprises:

the first device sends a perception establishing request to the second device;

the first device receives a perception establishing response sent by the second device.
The method of claim 31, wherein the method further comprises:

The first equipment receives a perception establishing request sent by the second equipment;

the first device sends a perception establishment response to the second device.
The method of any one of claim 1 to 33,

the first device is a sensing transmitting device, and the second device is a sensing receiving device; or,

the first device is a perception receiving device and the second device is a perception transmitting device.
A method of wireless communication, comprising:

the second equipment receives an NDPA announcement of a physical layer protocol data unit without data sent by the first equipment;

wherein the NDPA includes first information for indicating one of:

unidirectional sending of a physical layer protocol data unit (NDP) without data or bidirectional sending of the NDP;

the device for transmitting the NDPA firstly transmits NDP or the device for receiving the NDPA firstly transmits NDP;

unidirectional NDP is sent, NDP is sent by the device sending the NDPA, and NDP is not sent by the device receiving the NDPA;

the method comprises the steps that NDP is sent in a two-way mode, and equipment for sending the NDPA sends the NDP first, and equipment for receiving the NDPA sends the NDP;

the device which receives the NDPA firstly transmits the NDP, and the device which transmits the NDPA then transmits the NDP;

And the device which transmits the NDPA does not transmit the NDP, and the device which receives the NDPA transmits the NDP.
The method of claim 35, wherein the first information is an NDP sequence field in a frame carrying the NDPA.
The method of claim 36, wherein a frame carrying the NDPA comprises a generic information field and a site information field, wherein the generic information field comprises a first field for indicating that the current measurement is a non-trigger-based perceptual measurement and the NDP command field, and the site information field comprises a second field for indicating a number of space-time streams of the NDP for the downlink measurement and a third field for indicating a number of repetitions of long training field LTF symbols of the NDP for the downlink measurement.
The method of any of claims 35 to 37, wherein the perceptual measurement performed in the NDPA-corresponding measurement instance comprises at least one of: uplink sensing measurement, downlink sensing measurement and bidirectional sensing measurement.
The method according to any of claims 35 to 38, wherein the NDPA is sent by the access point AP in case the measurement instance corresponding to the NDPA is set to support bidirectional-aware measurement during the awareness establishment phase.
The method of claim 39, wherein the NDPA corresponding measurement instance is set to:

the AP transmits the NDPA and the Non-access point station Non-AP STA waits for the NDPA transmitted by the AP.
The method of any of claims 35 to 38, wherein the NDPA is sent by a device that first acquired channel usage rights in case the measurement instance for which the NDPA corresponds is set to support bidirectional perceptual measurement during the perceptual establishment phase.
The method of any one of claim 35 to 38, wherein,

and under the condition that the measurement instance corresponding to the NDPA is set to support bidirectional sensing measurement in a sensing establishment stage, configuring second information in the sensing establishment stage, wherein the second information is used for indicating that the NDPA is sent by an AP, or the second information is used for indicating that the NDPA is sent by equipment which acquires channel use rights first.
The method of claim 42, wherein the second information is an NDPA sender field in a first frame, wherein the first frame is a perceptual setup request frame or a perceptual setup response frame.
The method of claim 43, wherein the first frame comprises an action field comprising a sensory response device information field comprising the NDPA sender field.
The method of any one of claim 39 to 44,

the AP is set to allow to act as a sensing transmitting device and a sensing receiving device in the sensing establishment phase, and the Non-AP STA is set to allow to act as a sensing transmitting device and a sensing receiving device in the sensing establishment phase.
The method of any one of claims 39 to 45, further comprising:

and the second equipment sends the NDP to the first equipment according to the first information, and/or receives the NDP sent by the first equipment according to the first information.
The method of any of claims 39 to 46, wherein the perception initiating device obtains a perception measurement by an AP in the event that the perception initiating device is not involved in the perception measurement.
The method of claim 47, wherein the awareness initiating device is a Non-AP STA and the awareness initiating device triggers establishment of an awareness session between an AP and at least one Non-AP STA.
The method of claim 47 or 48, wherein, if the first device is an AP and the second device is a Non-AP STA, the method further comprises:

The second device sends a perception measurement to the first device.
The method of claim 49, wherein the method further comprises:

the second device receives a perception establishing request sent by the first device;

the second device sends a perception establishment response to the first device.
The method of claim 47 or 48, wherein, if the first device is a Non-AP STA and the second device is an AP, the method further comprises:

the second device receives the sensing measurement result sent by the first device.
The method of claim 51, wherein the method further comprises:

the second device receives a perception initiation request sent by the perception initiation device;

the second device sends a perception establishment request to at least one Non-AP STA, wherein the at least one Non-AP STA comprises 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.
The method of any of claims 39 to 46, wherein in the case where a perception initiating device is involved in a perception measurement and the first device is the perception initiating device, the method further comprises:

The second device sends a perception measurement to the first device.
The method of claim 53, wherein the method further comprises:

the second device does not send a perception measurement to the first device.
The method of claim 53 or 54, wherein the method further comprises:

the second device receives a perception establishing request sent by the first device;

the second device sends a perception establishment response to the first device.
The method of any of claims 39 to 46, wherein in the case where a perception initiating device is involved in a perception measurement and the second device is the perception initiating device, the method further comprises:

the second device receives the sensing measurement result sent by the first device.
The method of claim 56, said method further comprising:

the second device does not send a perception measurement to the first device.
The method of claim 56 or 57, wherein the method further comprises:

the second device sends a perception establishment request to at least one Non-AP STA, wherein the at least one Non-AP STA comprises the first device;

The second device receives a sensing establishment response sent by the at least one Non-AP STA.
The method of claim 50, 52, 55, or 58, wherein the awareness establishment request is sent through an awareness establishment request frame, wherein the awareness establishment request frame includes an action field that includes an awareness response device information field that includes an NDPA sender field whose value is used to indicate that NDPA was sent by the AP or whose value is used to indicate that NDPA was sent by a device that previously acquired channel usage rights.
The method of claim 50, 52, 55, or 58, wherein the awareness setup response is sent through an awareness setup response frame, wherein the awareness setup response frame includes an action field that includes an awareness response device information field that includes an NDPA sender field whose value is used to indicate that NDPA was sent by the AP or whose value is used to indicate that NDPA was sent by a device that previously acquired channel usage rights.
The method according to any of claims 35 to 38, wherein the NDPA is transmitted by a sensing transmission device in case the measurement instance corresponding to the NDPA is set to support unidirectional sensing measurements during a sensing establishment phase.
The method of claim 61, wherein, in a case where the first information indicates that a device transmitting the NDPA transmits NDP and a device receiving the NDPA does not transmit NDP, the method further comprises:

the second device receives the NDP sent by the first device.
The method of claim 62, wherein, in the case where the first device is the awareness initiating device, the method further comprises:

the second device sends a perception measurement to the first device.
The method of claim 62, wherein, in the case where the second device is the awareness initiating device, the method further comprises:

the second device does not send a perception measurement to the first device.
The method of claim 61, wherein, in the case where the first information indicates that a device transmitting the NDPA is not transmitting NDP, and a device receiving the NDPA is transmitting NDP, the method further comprises:

the second device sends an NDP to the first device.
The method of claim 65, wherein, in the case where the second device is the awareness initiating device, the method further comprises:

The second device receives the sensing measurement result sent by the first device.
The method of claim 63, wherein the method further comprises:

the second device receives a perception establishing request sent by the first device;

the second device sends a perception establishment response to the first device.
The method of claim 64 or 66, wherein the method further comprises:

the second device sends a perception establishing request to the first device;

the second device receives a perception establishing response sent by the first device.
The method of any one of claims 35 to 68,

the first device is a sensing transmitting device, and the second device is a sensing receiving device; or,

the first device is a perception receiving device and the second device is a perception transmitting device.
A device for wireless communication, wherein the device for wireless communication is a first device, the device for wireless communication comprising:

a communication unit, configured to send a physical layer protocol data unit announcement NDPA without data to the second device;

wherein the NDPA includes first information for indicating one of:

Unidirectional sending of a physical layer protocol data unit (NDP) without data or bidirectional sending of the NDP;

the device for transmitting the NDPA firstly transmits NDP or the device for receiving the NDPA firstly transmits NDP;

unidirectional NDP is sent, NDP is sent by the device sending the NDPA, and NDP is not sent by the device receiving the NDPA;

the method comprises the steps that NDP is sent in a two-way mode, and equipment for sending the NDPA sends the NDP first, and equipment for receiving the NDPA sends the NDP;

the device which receives the NDPA firstly transmits the NDP, and the device which transmits the NDPA then transmits the NDP;

and the device which transmits the NDPA does not transmit the NDP, and the device which receives the NDPA transmits the NDP.
A device for wireless communication, wherein the device for wireless communication is a second device, the device for wireless communication comprising:

a communication unit, configured to receive an NDPA announced by a physical layer protocol data unit without data sent by a first device;

wherein the NDPA includes first information for indicating one of:

unidirectional sending of a physical layer protocol data unit (NDP) without data or bidirectional sending of the NDP;

the device for transmitting the NDPA firstly transmits NDP or the device for receiving the NDPA firstly transmits NDP;

Unidirectional NDP is sent, NDP is sent by the device sending the NDPA, and NDP is not sent by the device receiving the NDPA;

the method comprises the steps that NDP is sent in a two-way mode, and equipment for sending the NDPA sends the NDP first, and equipment for receiving the NDPA sends the NDP;

the device which receives the NDPA firstly transmits the NDP, and the device which transmits the NDPA then transmits the NDP;

and the device which transmits the NDPA does not transmit the NDP, and the device which receives the NDPA transmits the NDP.
An apparatus for wireless communication, comprising: a processor and a memory for storing a computer program, the processor being adapted to invoke and run the computer program stored in the memory, to perform the method of any of claims 1 to 34, or to perform the method of any of claims 35 to 69.
A chip, comprising: a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method of any one of claims 1 to 34 or to perform the method of any one of claims 35 to 69.
A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 1 to 34 or to perform the method of any one of claims 35 to 69.
A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 1 to 34 or to perform the method of any one of claims 35 to 69.
A computer program, characterized in that the computer program causes a computer to perform the method of any one of claims 1 to 34 or to perform the method of any one of claims 35 to 69.