Sensing communication method and apparatus

Abstract

A sensing communication method and apparatus, applied to the technical field of communications. The present application can be applied to IEEE 802.11 series protocols, such as a 802.11bf protocol or a 802.11ax next-generation WiFi protocol or an IEEE 802.11be next-generation WiFi protocol or Wi-Fi AI or millimeter wave (mmWave) or ultra-wideband (UWB). A sensing initiator sends a sensing measurement request frame; a sensing responder receives the sensing measurement request frame and sends a sensing measurement response frame; the sensing initiator receives the sensing measurement response frame. The sensing measurement request frame can comprise monostatic indication information, sensing transmitter indication information, and sensing receiver indication information, and the monostatic indication information can be used for indicating whether the sensing responder can perform monostatic sensing. The method introduces monostatic sensing in a sensing process, so that the sensing performance can be improved.

Description

Perception communication method and device

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on December 29, 2023, with application number 202311868082.7, and priority to the Chinese patent application entitled “Perceptual Communication Method and Device”, all contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communication technology, and in particular to a perception communication method and device. Background Art

[0003] The Institute of Electrical and Electronics Engineers (IEEE) 802.11bf is a next-generation wireless standard focused on sensing passive objects (i.e., targets without any equipment). 802.11bf includes two broad categories: low-frequency (e.g., below 7 GHz, primarily implemented using 802.11ac, 802.11ax, 802.11be, 802.11bn, and future generations) and high-frequency (e.g., greater than or equal to 60 GHz, primarily implemented using 802.11ad, 802.11ay, and future generations).

[0004] In the 802.11bf standard, one sensing device sends a sensing signal, and another sensing device receives the sensing signal to perform sensing measurements, such as estimating channel state information (CSI).

[0005] Therefore, how to improve perception performance needs to be urgently addressed. Summary of the Invention

[0006] The embodiments of the present application provide a perception communication method and device, which not only enriches the perception process but also improves the perception performance by introducing spontaneous transmission and reception perception during the perception process.

[0007] In a first aspect, an embodiment of the present application provides a sensing communication method, which is applied to a sensing initiator. The sensing initiator may include a sensing device, or a chip or functional module provided in the sensing device. The method includes:

[0008] Sending a sensing measurement request frame, where the sensing measurement request frame includes a sensing measurement parameter element, where the sensing measurement parameter element includes monostatic indication information, sensing transmitter indication information, and sensing receiver indication information, where the monostatic indication information is used to indicate whether the sensing responder performs monostatic sensing, the sensing transmitter indication information is used to indicate whether the sensing responder is a sensing transmitter, and the sensing receiver indication information is used to indicate whether the sensing responder is a sensing receiver; and receiving a sensing measurement response frame for the sensing measurement request frame.

[0009] As an example, the sensing initiator may include an access point (AP), and the sensing responder may include a station (STA). For example, for a trigger-based (TB) sensing measurement interaction (TB sensing measurement instance), the sensing initiator may be an AP, and the sensing responder may be an STA. As another example, the sensing initiator may include a STA, and the sensing responder may include an AP. For example, for a non-trigger-based (Non-TB) sensing measurement interaction (Non-TB sensing measurement instance), the sensing initiator may be a STA, and the sensing responder may be an AP.

[0010] In an embodiment of the present application, by adding self-transmission and self-reception indication information to the perception measurement request frame, the perception initiator can assign more role types to the perception responder, thereby enabling the perception responder to support the perception process of self-transmission and self-reception perception, further enriching the process of the perception measurement session. At the same time, using self-transmission and self-reception perception, since the perception physical layer convergence procedure (PLCP) protocol data unit (PHY protocol data unit, PPDU) is sent and received by the same perception device, the perception PPDU is not affected by errors such as carrier frequency deviation or sampling frequency deviation, thereby improving the accuracy of the perception measurement results and improving perception performance.

[0011] In one possible implementation, when the perception sending end indication information indicates that the perception responding end is a perception sending end, when the value of the spontaneous transmission and self-reception indication information is a first value, it indicates that the perception responding end performs spontaneous transmission and self-reception perception; when the value of the spontaneous transmission and self-reception indication information is a second value, it indicates that the perception responding end does not perform spontaneous transmission and self-reception perception.

[0012] Exemplarily, the perception responder is a perception transmitter, and the perception responder can perform autonomous self-receiving perception. For example, in different perception measurement interactions within a perception measurement session, the perception responder can be a perception transmitter and perform autonomous self-receiving perception. In another example, in different stages of a measurement interaction, the perception responder can be a perception transmitter and perform autonomous self-receiving perception. In another example, in the same stage of a perception measurement interaction, the perception responder can be a perception transmitter and perform autonomous self-receiving perception.

[0013] For example, the first value may be 1, and the second value may be 0.

[0014] In the embodiments of the present application, when the sensing responder acts as a sensing transmitter, it can perform self-transmitting and self-receiving sensing. Thus, the sensing transmitter can transmit a sensing PPDU, which the sensing receiver receives and performs sensing measurements. Furthermore, the sensing transmitter can also receive the sensing PPDU and perform channel measurements, thereby increasing the efficiency of sensing measurements.

[0015] In one possible implementation, when the perception receiving end indication information indicates that the perception responding end is a perception receiving end, when the value of the spontaneous transmission and self-reception indication information is a first value, it indicates that the perception responding end performs spontaneous transmission and self-reception perception; when the value of the spontaneous transmission and self-reception indication information is a second value, it indicates that the perception responding end does not perform spontaneous transmission and self-reception perception.

[0016] In the embodiment of the present application, when the sensing responding end acts as the sensing receiving end, it can perform autonomous transmission and self-reception sensing. Allowing the sensing receiving end to perform autonomous transmission and self-reception sensing can improve measurement diversity gain.

[0017] In a possible implementation, the sensing measurement request frame further includes a sensing comeback info field, and the sensing comeback info field may be used to instruct the non-associated STA to resend a sensing measurement query frame within a specified time.

[0018] Exemplarily, the above-mentioned specified time may be after the time indicated by the unassociated STA comeback after exponent field in the perception reply information field, and before the time indicated by the unassociated STA comeback before exponent field in the perception reply information field.

[0019] In a possible implementation, after sending the perception measurement request frame, the method further includes: sending a perception empty data packet declaration NDPA frame, where the perception NDPA frame includes detection indication information, and the detection indication information is used to indicate whether the perception response end needs to receive a perception physical layer convergence procedure (PLCP) protocol data unit (PHY protocol data unit, PPDU), or the detection indication information is used to indicate whether the perception response end needs to estimate channel state information (CSI), or the detection indication information is used to indicate whether the perception response end needs to report channel state information CSI.

[0020] Exemplarily, the detection indication information can be used to indicate whether the perception response end performs at least one of the following in the stage corresponding to the perception NDPA frame: receiving perception PPDU, estimating CSI, caching CSI (or storing CSI) or reporting CSI. As an example, in TB measurement interaction, the AP can send a perception NDPA frame to the STA. As another example, in Non-TB measurement interaction, the STA can send a perception NDPA frame to the AP. For example, the detection indication information can be used to indicate whether the perception response end performs at least one of the following: receiving perception PPDU, estimating CSI, caching CSI, and reporting CSI. For example, if the value of the detection indication information is value #1, it can indicate that the perception response end does not need to receive the perception PPDU; or, it can indicate that the perception response end does not estimate the CSI (such as the perception response end can receive the perception PPDU, but does not estimate the CSI); or, it can indicate that the perception response end does not cache the CSI (such as the perception response end can receive the perception PPDU, estimate the CSI, but does not cache the CSI); or, it can indicate that the perception response end does not report the CSI (such as the perception response end can receive the perception PPDU, estimate the CSI, cache the CSI, but does not report the CSI); or, it can indicate that the perception response end does not report the CSI in this perception measurement interaction. For another example, if the value of the detection indication information is value #2, it can indicate that the perception response end needs to receive the perception PPDU or estimate the CSI or cache the CSI or report the CSI. The values ​​#1 and #2 shown here are to distinguish different values, and the embodiments of this application do not limit the specific numerical values.

[0021] Exemplarily, the detection indication information can be carried in the STA information (STA Iinfo) in the perception NDPA frame.

[0022] In an embodiment of the present application, the perception initiator instructs the perception responder whether to receive the perception PPDU and other behaviors through the perception NDPA frame. For example, the perception responder may also not receive the perception PPDU, etc., thereby saving resources and power consumption.

[0023] In a possible implementation manner, the NDPA-aware frame further includes the autonomous transmission and reception indication information.

[0024] For example, for non-TB measurement interaction, the STA can instruct the AP whether to perform autonomous sensing through the sensing NDPA frame. For example, for non-TB measurement interaction, the sensing NDPA frame can include at least one of detection indication information or autonomous sensing indication information.

[0025] In a possible implementation, after sending the perception measurement request frame, the method further includes: sending a detection trigger frame, where the perception detection trigger frame includes the self-transmission and self-reception indication information.

[0026] Exemplarily, the sensing detection trigger frame may include at least one of a sensing responder to sensing initiator (SR2SI) detection trigger frame (SR2SI sounding trigger frame), a sensing responder to sensing responder (SR2SR) detection trigger frame (SR2SR sounding trigger frame), or an SI2SR detection trigger frame.

[0027] In one possible implementation, the user information (userinfo) field in the perception detection trigger frame includes the spontaneous transmission and reception indication information; or, the common information (commoninfo) field in the perception detection trigger frame includes the spontaneous transmission and reception indication information, and the common information field also includes a measurement session identifier ID, and the measurement session ID is used to indicate the perception measurement session corresponding to the spontaneous transmission and reception perception performed by the perception responder; or, the transmitting end user information field or the receiving end user information field in the perception detection trigger frame includes the spontaneous transmission and reception indication information.

[0028] As an example, the user information field in the SR2SI detection trigger frame may include the self-transmission and self-reception indication information, or the public information field may include the self-transmission and self-reception indication information. Exemplarily, the value of the perception trigger subtype field in the SR2SI detection trigger frame is 1. As another example, at least one of the transmitter user information (transmitter user info) field or the receiver user information (receiver user info) field in the SR2SR detection trigger frame includes the self-transmission and self-reception indication information, or the public information field includes the self-transmission and self-reception indication information. Exemplarily, the value of the perception trigger subtype field in the SR2SR detection trigger frame is 4.

[0029] In the embodiments of the present application, by carrying the self-transmission and self-reception indication information in the user information field, the perception initiating end can flexibly schedule the perception responding end corresponding to the user information field to perform self-transmission and self-reception perception. By carrying the self-transmission and self-reception indication information in the common information field, the perception initiating end can instruct all perception responding ends to perform self-transmission and self-reception perception, or instruct all perception responding ends not to perform self-transmission and self-reception perception, thereby saving signaling overhead and efficiently managing the behavior of all perception responding ends.

[0030] In a possible implementation, after sending the perception measurement request frame, the method further includes: sending a perception detection trigger frame, where the perception detection trigger frame is used to schedule multiple perception response terminals participating in the perception measurement interaction to perform autonomous transmission and reception of perception.

[0031] In the embodiment of the present application, by adding a detection trigger frame for spontaneous and self-receiving perception, the perception initiator can schedule all devices participating in the perception to perform spontaneous and self-receiving perception, which is simple to implement and can improve the perception performance through spontaneous and self-receiving perception.

[0032] In a possible implementation, the perception detection trigger frame includes a perception trigger subtype field, and a value of the perception trigger subtype field is 5.

[0033] Exemplarily, the value of the perception trigger subtype field may also be any number between 6 and 15.

[0034] In one possible implementation, before sending the perception measurement request frame, the method further includes: sending first capability indication information, where the first capability indication information is used to indicate whether the perception initiator supports autonomous and self-receiving perception; and receiving second capability indication information, where the second capability indication information is used to indicate whether the perception responder supports autonomous and self-receiving perception.

[0035] Exemplarily, the first capability indication information is carried in a first perception capability element, and the second capability indication information is carried in a second perception capability element.

[0036] In the embodiment of the present application, the perception device can enable the perception device at the other end to learn more capabilities of the aforementioned perception device and improve communication efficiency by communicating whether it supports self-transmitting and self-receiving perception during the capability interaction stage.

[0037] In a possible implementation, the sensing initiator includes an access point AP, and before sending the sensing measurement request frame, the method further includes: receiving a sensing by proxy (SBP) SBP request frame, wherein the SBP request frame includes the self-transmitting and self-receiving indication information.

[0038] In an embodiment of the present application, by adding self-transmission and self-reception indication information to the SBP request frame, the SBP initiator can suggest the role of the perception responder to the SBP responder. The SBP responder shown here can act as the perception initiator to send a perception measurement request frame to the perception responder. For example, in the above-mentioned perception measurement request frame, the role assigned by the perception initiator to the perception responder can be determined by the perception initiator according to the role suggested by the SBP initiator for the perception initiator.

[0039] In one possible implementation, the SBP request frame includes an SBP parameter element, the SBP parameter element includes a perception response end role bit map, the first bit in the perception response end bit map is used to indicate whether the perception response end is a perception sending end, the second bit in the perception response end role bit map is used to indicate whether the perception response end is a perception receiving end, and the third bit in the perception role bit map is used to indicate whether the perception response end performs self-transmitting and self-receiving perception.

[0040] In one possible implementation, the method further includes: sending a first NDP, the signaling (SIG) field of the first NDP including NDP indication information, and the NDP indication information is used to indicate whether the first NDP is an NDP for autonomous transmission and self-reception perception; or, receiving a second NDP, the signaling SIG field of the second NDP including NDP indication information, and the NDP indication information is used to indicate whether the second NDP is an NDP for autonomous transmission and self-reception perception.

[0041] In an embodiment of the present application, when the NDP indication information indicates that a certain NDP is used for self-transmission and self-reception perception, the receiving end of the NDP can know that the NDP is the NDP used by the sending end of the NDP for self-transmission and self-reception perception, so the receiving end may not continue to receive the information after the NDP indication information in the NDP, thereby saving resources, saving power consumption, and achieving energy saving.

[0042] In a second aspect, an embodiment of the present application provides a perception communication method, which is applied to a perception response end, which may include a perception device, or a chip or functional module provided in the perception device, and the method includes:

[0043] Receive a perception measurement request frame, the perception measurement request frame including a perception measurement parameter element, the perception measurement parameter element including autonomous transmission and self-reception indication information, perception sending end indication information, and perception receiving end indication information, the autonomous transmission and self-reception indication information is used to indicate whether the perception response end performs autonomous transmission and self-reception perception, the perception sending end indication information is used to indicate whether the perception response end is a perception sending end, and the perception receiving end indication information is used to indicate whether the perception response end is a perception receiving end; and send a perception response frame for the perception request frame.

[0044] In one possible implementation, when the perception sending end indication information indicates that the perception responding end is a perception sending end, when the value of the spontaneous transmission and self-reception indication information is a first value, it indicates that the perception responding end performs spontaneous transmission and self-reception perception; when the value of the spontaneous transmission and self-reception indication information is a second value, it indicates that the perception responding end does not perform spontaneous transmission and self-reception perception.

[0045] In one possible implementation, when the perception receiving end indication information indicates that the perception responding end is a perception receiving end, when the value of the spontaneous transmission and self-reception indication information is a first value, it indicates that the perception responding end performs spontaneous transmission and self-reception perception; when the value of the spontaneous transmission and self-reception indication information is a second value, it indicates that the perception responding end does not perform spontaneous transmission and self-reception perception.

[0046] In a possible implementation, the autonomous and self-receiving sensing performed by the sensing response end includes: the sensing response end sending a sensing physical layer convergence process protocol data unit PPDU, receiving a reflected signal of the sensing PPDU; and estimating channel state information CSI based on the reflected signal.

[0047] In a possible implementation, after receiving the perception measurement request frame, the method further includes: receiving a perception empty data packet declaration NDPA frame, the perception NDPA frame including detection indication information, the detection indication information being used to indicate whether the perception response end needs to receive the perception physical layer convergence process protocol data unit PPDU, or the detection indication information being used to indicate whether the perception response end needs to estimate channel state information CSI, or the detection indication information being used to indicate whether the perception response end needs to report channel state information CSI.

[0048] In a possible implementation manner, the NDPA-aware frame further includes the autonomous transmission and reception indication information.

[0049] In a possible implementation, after receiving the perception measurement request frame, the method further includes: receiving a perception detection trigger frame, where the perception detection trigger frame includes the self-transmitting and self-receiving indication information.

[0050] In one possible implementation, the user information field in the perception detection trigger frame includes the spontaneous transmission and reception indication information; or, the public information field in the perception detection trigger frame includes the spontaneous transmission and reception indication information, and the public information field also includes a measurement session identifier ID, and the measurement session ID is used to indicate the perception measurement session corresponding to the spontaneous transmission and reception perception performed by the perception responder; or, the transmitting end user information field or the receiving end user information field in the perception detection trigger frame includes the spontaneous transmission and reception indication information.

[0051] In a possible implementation, after receiving the perception measurement request frame, the method further includes: receiving a perception detection trigger frame, where the perception detection trigger frame is used to schedule multiple perception response terminals participating in the perception measurement interaction to perform autonomous transmission and reception of perception.

[0052] In a possible implementation, the perception detection trigger frame includes a perception trigger subtype field, and a value of the perception trigger subtype field is 5.

[0053] In one possible implementation, before receiving the perception measurement request frame, the method further includes: receiving first capability indication information, where the first capability indication information is used to indicate whether the perception initiator supports autonomous self-transmission and self-reception perception; and sending second capability indication information, where the second capability indication information is used to indicate whether the perception responder supports autonomous self-transmission and self-reception perception.

[0054] In a possible implementation, the perception response end includes a station STA, and before receiving the perception measurement request frame, the method further includes: sending a perception agent SBP request frame, where the SBP request frame includes the self-transmitting and self-receiving indication information.

[0055] In one possible implementation, the SBP request frame includes an SBP parameter element, the SBP parameter element includes a perception response end role bit map, the first bit in the perception response end bit map is used to indicate whether the perception response end is a perception sending end, the second bit in the perception response end role bit map is used to indicate whether the perception response end is a perception receiving end, and the third bit in the perception role bit map is used to indicate whether the perception response end performs self-transmitting and self-receiving perception.

[0056] In one possible implementation, the method further includes: receiving a first NDP, the signaling SIG field of the first NDP including NDP indication information, and the NDP indication information is used to indicate whether the first NDP is an NDP for autonomous transmission and self-reception perception; or, sending a second NDP, the signaling SIG field of the second NDP including NDP indication information, and the NDP indication information is used to indicate whether the second NDP is an NDP for autonomous transmission and self-reception perception.

[0057] For other explanations about the second aspect, please refer to the first aspect and will not be described in detail here.

[0058] In a third aspect, embodiments of the present application provide a perception initiating terminal configured to execute the method in the first aspect or any possible implementation. The perception initiating terminal includes a module configured to execute the method in the first aspect or any possible implementation.

[0059] In a fourth aspect, embodiments of the present application provide a perception response terminal configured to execute the method in the second aspect or any possible implementation. The perception response terminal includes a module configured to execute the method in the second aspect or any possible implementation.

[0060] In a fifth aspect, embodiments of the present application provide a perception initiating terminal, comprising a processor configured to execute the method described in the first aspect or any possible implementation. The processor is configured to execute a program stored in a memory, and when the program is executed, the method described in the first aspect or any possible implementation is executed.

[0061] In a possible implementation, the memory is located outside the perception initiating end.

[0062] In a possible implementation, the memory is located within the perception initiating end.

[0063] In the embodiment of the present application, the processor and the memory may also be integrated into one device, that is, the processor and the memory may also be integrated together. For example, the sensing initiator may be a chip.

[0064] In a possible implementation, the perception initiating end further includes a transceiver, and the transceiver is used to receive information or send information.

[0065] In a sixth aspect, embodiments of the present application provide a perception response terminal, comprising a processor configured to execute the method described in the second aspect or any possible implementation. The processor is configured to execute a program stored in a memory, and when the program is executed, the method described in the second aspect or any possible implementation is executed.

[0066] In a possible implementation, the memory is located outside the aforementioned perception response end.

[0067] In a possible implementation, the memory is located within the aforementioned perception response end.

[0068] In the embodiment of the present application, the processor and the memory may also be integrated into one device, that is, the processor and the memory may also be integrated together. For example, the sensing and response end may be a chip.

[0069] In a possible implementation, the perception response end further includes a transceiver, and the transceiver is used to receive information or send information.

[0070] In the seventh aspect, an embodiment of the present application provides a perception initiating terminal, which includes a logic circuit and an interface, and the logic circuit and the interface are coupled; the interface is used to input and / or output information, and the logic circuit is used to execute the method described in the first aspect or any possible implementation method.

[0071] In an eighth aspect, an embodiment of the present application provides a perception response end, which includes a logic circuit and an interface, and the logic circuit and the interface are coupled; the interface is used to input and / or output information, and the logic circuit is used to execute the method described in the second aspect or any possible implementation method.

[0072] In the ninth aspect, an embodiment of the present application provides a computer-readable storage medium, which is used to store a computer program. When the computer-readable storage medium is run on a computer, the method shown in any one of the above-mentioned first to second aspects or any possible implementation method is executed.

[0073] In a tenth aspect, an embodiment of the present application provides a computer program product, which, when executed on a computer, enables the method shown in any one of the first to second aspects or any possible implementation thereof to be executed.

[0074] In an eleventh aspect, an embodiment of the present application provides a computer program. When the computer program is run on a computer, the method shown in any one of the first to second aspects or any possible implementation is executed.

[0075] In the twelfth aspect, an embodiment of the present application provides a communication system, which includes a perception initiating end and / or a perception responding end, wherein the perception initiating end is used to execute the method shown in the above-mentioned first aspect or any possible implementation of the first aspect, and the perception responding end is used to execute the method shown in the above-mentioned second aspect or any possible implementation of the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0076] FIG1a is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application;

[0077] FIG1b is a schematic diagram of a format of a perception PPDU provided in an embodiment of the present application;

[0078] FIG1c is a schematic diagram of another format of a perception PPDU provided in an embodiment of the present application;

[0079] FIG1d is a schematic diagram of the format of another perception PPDU provided in an embodiment of the present application;

[0080] FIG1e is a schematic diagram of the format of another perception PPDU provided in an embodiment of the present application;

[0081] FIG2 is a schematic diagram of the stages of a perception process provided by an embodiment of the present application;

[0082] FIG3a is a schematic diagram of a TB perception measurement interaction process provided by an embodiment of the present application;

[0083] FIG3 b is a schematic diagram of a Non-TB sensing measurement interaction process provided by an embodiment of the present application;

[0084] FIG4 is a schematic diagram of an SBP process provided in an embodiment of the present application;

[0085] FIG5a is a flow chart of a perception communication method provided in an embodiment of the present application;

[0086] FIG5 b is a schematic diagram of the format of a perception capability element provided in an embodiment of the present application;

[0087] FIG5c is a schematic diagram of the format of a perception field in a perception capability element provided by an embodiment of the present application;

[0088] FIG6a is a schematic diagram of a flow chart of a perception communication method provided in an embodiment of the present application;

[0089] FIG6 b is a schematic diagram of the format of a perception measurement request frame provided in an embodiment of the present application;

[0090] FIG6c is a schematic diagram of the format of a perception measurement response frame provided in an embodiment of the present application;

[0091] FIG7a is a flow chart of a perception communication method provided in an embodiment of the present application;

[0092] FIG7 b is a schematic diagram of the format of the STA information field of an NDPA-aware frame provided in an embodiment of the present application;

[0093] FIG8a is a schematic diagram of a flow chart of a perception communication method provided in an embodiment of the present application;

[0094] FIG8b is a schematic diagram of the format of a user information field of a perception detection trigger frame provided in an embodiment of the present application;

[0095] FIG8c is a schematic diagram of the format of a common information field of a perception detection trigger frame provided in an embodiment of the present application;

[0096] FIG8 d is a schematic diagram of a TB perception measurement interaction process provided by an embodiment of the present application;

[0097] FIG8e is a schematic diagram of the format of a sensing detection trigger frame provided in an embodiment of the present application;

[0098] FIG9a is a schematic diagram of a TB perception measurement interaction process provided by an embodiment of the present application;

[0099] FIG9b is a schematic diagram of the format of a transmitter user information field of a perception detection trigger frame provided by an embodiment of the present application;

[0100] FIG9c is a schematic diagram of the format of a receiving end user information field of a perception detection trigger frame provided by an embodiment of the present application;

[0101] FIG9 d is a schematic diagram of the format of a common information field of a perception detection trigger frame provided in an embodiment of the present application;

[0102] FIG10a is a schematic diagram of the format of a common information field of a perception detection trigger frame provided in an embodiment of the present application;

[0103] FIG10b is a schematic diagram of the format of a user information field of a perception detection trigger frame provided in an embodiment of the present application;

[0104] FIG10c is a schematic diagram of a TB measurement interaction process provided by an embodiment of the present application;

[0105] FIG11a is a schematic diagram of a non-TB measurement interaction provided in an embodiment of the present application;

[0106] FIG11b is a schematic diagram of the format of the STA information field of an NDPA-aware frame provided in an embodiment of the present application;

[0107] FIG12 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0108] FIG13 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0109] FIG14 is a schematic structural diagram of a communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0110] To facilitate understanding of the technical solution of the present application, the present application will be further described below with reference to the accompanying drawings.

[0111] The terms "first" and "second" in the specification, claims, and drawings of this application are used only to distinguish different objects and are not used to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units that are inherent to the process, method, product, or device.

[0112] References to "embodiments" herein mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it refer to independent or alternative embodiments that are mutually exclusive of other embodiments. It will be understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0113] In this application, "at least one (item)" means one or more, "more than one" means two or more, "at least two (items)" means two or three and more than three, and "and / or" is used to describe the association relationship of associated objects, indicating that three relationships can exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. "Or" means that two relationships can exist, such as only A exists, only B exists; when A and B are not mutually exclusive, it can also mean that three relationships exist, such as only A exists, only B exists, and A and B exist at the same time. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c".

[0114] In this application, "indication" may include direct indication, indirect indication, explicit indication, and implicit indication. When describing that a certain indication information is used to indicate A, it can be understood that the indication information carries A, directly indicates A, or indirectly indicates A.

[0115] In this application, the information indicated by the indication information is referred to as the information to be indicated. In the specific implementation process, there are many ways to indicate the information to be indicated, such as but not limited to, the information to be indicated can be directly indicated, such as the information to be indicated itself or the index of the information to be indicated. The information to be indicated can also be indirectly indicated by indicating other information, wherein there is an association between the other information and the information to be indicated. It is also possible to indicate only a part of the information to be indicated, while the other parts of the information to be indicated are known or agreed in advance. For example, the indication of specific information can also be achieved with the help of the arrangement order of each information agreed in advance (for example, stipulated by the protocol), thereby reducing the indication overhead to a certain extent. In addition, the information to be indicated can be sent together as a whole, or it can be divided into multiple sub-information and sent separately, and the sending period and / or sending time of these sub-information can be the same or different.

[0116] In this application, "sending" and "receiving" indicate the direction of signal transmission. For example, "sending information to XX" can be understood as the destination of the information is XX, which can include direct sending through the air interface, and also include indirect sending through the air interface by other units or modules. "Receiving information from YY" can be understood as the source of the information is YY, which can include direct receiving from YY through the air interface, and also include indirect receiving from YY through the air interface from other units or modules. "Sending" can also be understood as the "output" of the chip interface, and "receiving" can also be understood as the "input" of the chip interface. In other words, sending and receiving can be carried out between devices, for example, between network devices and terminal devices, or can be carried out within a device, for example, sending or receiving between components, modules, chips, software modules or hardware modules within the device through a bus, trace or interface.

[0117] The embodiments of the present application provide a perception communication method and apparatus that can introduce indication information of monostatic sensing into a perception process or an SBP process. Monostatic sensing has advantages over bi-directional sensing. For example, in monostatic sensing, the perception device transmits a perception PPDU and receives a reflected signal of the perception PPDU. Since the transmission and reception can be considered synchronous, they are not affected by errors such as carrier frequency offset and sampling frequency offset, resulting in better perception performance.

[0118] For example, the aforementioned reflected signal can be a signal reflected by the environment, for example, from the perception PPDU. For ease of description, the following uses the sending and receiving of a perception PPDU as examples to illustrate autonomous transmission and reception. For example, autonomous transmission and reception sensing can occur when the device sending the perception PPDU and the device receiving the perception PPDU are the same device. Separate-location sensing can occur when the device sending the perception PPDU and the device receiving the perception PPDU are different devices.

[0119] The following describes the communication system involved in the embodiments of the present application.

[0120] The technical solutions provided in the embodiments of the present application can be applied to wireless local area network (WLAN) systems, such as Wi-Fi or ambient power (AMP). The methods provided in the embodiments of the present application can be applied to IEEE 802.11 series protocols, such as 802.11a / b / g protocols, 802.11bf protocols, 802.11n protocols, 802.11ac protocols, 802.11ax protocols, 802.11be protocols, 802.11bn protocols or next-generation protocols, etc., which are not listed one by one. The technical solutions provided in the embodiments of the present application can also be applied to wireless personal area networks (WPANs) based on ultra-wideband (UWB) technology. The technical solutions provided in the embodiments of the present application can also be applied to millimeter wave (MMW) technology, including IMW. The method provided in the embodiment of the present application can be applied to the IEEE802.15 series of protocols, such as the 802.15.4a protocol, the 802.15.4z protocol or the 802.15.4ab protocol, or a future generation of UWB WPAN protocol, etc., which are not listed one by one. The technical solution provided in the embodiment of the present application can also be applied to the following communication systems, for example, the Internet of Things (IoT) system, the Vehicle to X (V2X), the Narrow Band Internet of Things (NB-IoT) system, the Long Term Evolution (LTE) system, the Fifth Generation (5G) communication system, and new communication systems that will emerge in the future development of communications.

[0121] WLAN systems can provide high-speed and low-latency transmission. As WLAN application scenarios continue to evolve, WLAN systems will be applied to more scenarios or industries, such as the Internet of Things industry, the Internet of Vehicles industry, the banking industry, corporate offices, sports stadiums and exhibition halls, concert halls, hotel rooms, dormitories, wards, classrooms, supermarkets, squares, streets, production workshops and warehouses, etc. Of course, devices that support WLAN communication or perception (such as access points or stations) can be sensor nodes in smart cities (such as smart water meters, smart electricity meters, and smart air detection nodes), smart devices in smart homes (such as smart cameras, projectors, displays, TVs, speakers, refrigerators, washing machines, etc.), nodes in the Internet of Things, entertainment terminals (such as wearable devices such as augmented reality (AR) and virtual reality (VR)), smart devices in smart offices (such as printers, projectors, loudspeakers, speakers, etc.), Internet of Vehicles devices, infrastructure in daily life scenarios (such as vending machines, self-service navigation counters in supermarkets, self-service checkout equipment, self-service ordering machines, etc.), and equipment in large sports and music venues.

[0122] Although the embodiments of the present application primarily use WLAN as an example, particularly networks based on the IEEE 802.11 standard, the various aspects of the embodiments of the present application can be extended to other networks based on various standards or protocols, such as Bluetooth, high-performance wireless LAN (HIPERLAN) (a wireless standard similar to the IEEE 802.11 standard, primarily used in Europe), and wide area networks (WANs), or other networks now known or developed in the future.

[0123] In one possible implementation, the method provided in the embodiment of the present application may be implemented by a communication device in a communication system. For example, the communication device may be an access point (AP) or a station (STA).

[0124] An access point is a device with wireless communication capabilities that supports communication or sensing using WLAN protocols. It has the ability to communicate or sense with other devices in a WLAN network (such as non-AP STAs or other access points). Of course, it can also have the ability to communicate or sense with other devices. Alternatively, an access point acts as a bridge between a wired network and a wireless network, primarily connecting wireless network clients and then connecting the wireless network to the Ethernet. In a WLAN system, an access point can be referred to as an access point station (AP STA). This device with wireless communication capabilities can be a complete device or a chip, processing system, or functional module installed in the complete device. Devices equipped with these chips, processing systems, or functional modules can implement the methods and functions of the embodiments of the present application under the control of these chips, processing systems, or functional modules. The AP in the embodiments of the present application is a device that provides services for non-AP STAs and can support the 802.11 series of protocols or subsequent protocols. For example, an access point can be an access point for a terminal (such as a mobile phone) to enter a wired (or wireless) network. It is primarily deployed in homes, buildings, and campuses, with a typical coverage radius of tens to hundreds of meters. Of course, it can also be deployed outdoors. For another example, an AP can be a communication entity such as a communication server, router, switch, or bridge; an AP can include various forms of macro base stations, micro base stations, and relay stations. Of course, an AP can also be a chip, processing system, or module in any of the aforementioned devices, thereby implementing the methods and functions of the embodiments of the present application. Of course, an AP can also include an AP belonging to a multi-link device (MLD).

[0125] A STA is a device with wireless communication capabilities that supports communication or perception using the WLAN protocol and has the ability to communicate or perceive other non-AP STAs or access points in the WLAN network. In a WLAN system, a station can be referred to as a non-access point station (non-AP STA). For example, a STA is any user communication device that allows a user to communicate or perceive with an AP and then communicate with a WLAN. The device with wireless communication capabilities can be a complete device, or a chip, processing system, or functional module installed in the complete device. The device installed with these chips, processing systems, or functional modules can implement the methods and functions of the embodiments of the present application under the control of the chip, processing system, or functional module. For example, a STA can be a wireless communication chip, a wireless sensor, or a wireless communication terminal, and can also be referred to as a user. For another example, a STA can be a mobile phone that supports Wi-Fi communication capabilities, a tablet that supports Wi-Fi communication capabilities, a set-top box that supports Wi-Fi communication capabilities, a smart TV that supports Wi-Fi communication capabilities, a smart wearable device that supports Wi-Fi communication capabilities, an in-vehicle communication device that supports Wi-Fi communication capabilities, and a computer that supports Wi-Fi communication capabilities. Of course, STA can also be a chip or processing system or module in the various forms of devices mentioned above, so as to implement the methods and functions of the embodiments of the present application. Of course, STA can also include a non-AP STA belonging to a multi-link device (MLD).

[0126] Exemplarily, the communication system to which the method provided in the embodiments of the present application can be applied may include access points and stations. For example, the embodiments of the present application may be applicable to scenarios of communication or perception between APs and STAs, between APs and APs, or between STAs and STAs in a WLAN, and the embodiments of the present application are not limited thereto. Optionally, the AP may communicate or perceive with a single STA, or the AP may communicate or perceive with multiple STAs simultaneously. Specifically, communication or perception between the AP and multiple STAs can be further divided into downlink transmission in which the AP sends signals to multiple STAs simultaneously, and uplink transmission in which multiple STAs send signals to the AP. WLAN communication protocols may be supported between the AP and STAs, between APs and APs, and between STAs. The communication protocols may include IEEE 802.11 series protocols, such as 802.11n / 802.11ac / 802.11ax / 802.11be / 802.11bn protocols, and of course, also applicable to protocols after 802.11bn.

[0127] Figure 1a is a schematic diagram of the architecture of a communication system provided in an embodiment of the present application. The communication system may include one or more APs and one or more STAs. Figure 1a shows an access point such as AP1, and three stations such as STA1, STA2, and STA3. Exemplarily, the method provided in an embodiment of the present application may be applicable to data communication between an AP and one or more STAs (communication between AP1 and STA1 as shown in Figure 1a, or communication between AP1 and STA1 and STA2), or applicable to communication between APs (communication between AP1 and AP2 as shown in Figure 1a), or applicable to communication between STAs (communication between STA2 and STA3 as shown in Figure 1a). The method provided in an embodiment of the present application may be applicable to, but not limited to: single-user uplink / downlink transmission, multi-user uplink / downlink transmission, vehicle-to-everything (V2X, X can represent anything), and device-to-device (D2D). For example, the V2X may include: vehicle to vehicle (V2V), vehicle to infrastructure (V2I), vehicle to pedestrian (V2P) or vehicle to network (V2N) communication, etc.

[0128] It should be understood that the example of a mobile phone as a STA and a router as an AP in Figure 1a is not intended to limit the types of APs and STAs in the embodiments of this application. Furthermore, Figure 1a only illustrates one AP and three STAs, but the number of APs or STAs can be greater or less, and this is not limited in the embodiments of this application.

[0129] The following describes an embodiment of the present application involving a perception communication method.

[0130] Sensing initiator: A device that initiates a sensing action, or initiates a sensing measurement session, or sends a sensing measurement request frame. For example, the sensing initiator can send a sensing measurement request frame at sub-7 GHz or at a higher frequency.

[0131] Sensing Responder: A device that participates in sensing by responding to sensing actions initiated by a Sensing Initiator. For example, a Sensing Responder can receive Sensing Measurement Request frames and reply with Sensing Measurement Response frames. For example, the Sensing Initiator can be an AP, and the Sensing Responder can be a STA. For another example, the Sensing Initiator can be a STA, and the Sensing Responder can be an AP.

[0132] Sensing transmitter: a device that sends a sensing PPDU. For example, a sensing PPDU may include but is not limited to SI2SR NDP or SR2SI NDP or SR2SR NDP. Figures 1b to 1e exemplarily illustrate format diagrams of a sensing PPDU. The sensing PPDU shown in Figure 1b is illustrated by taking the high efficiency (HE) ranging (HE ranging) NDP as an example, the sensing PPDU shown in Figure 1c is illustrated by taking the HETB ranging NDP as an example, the sensing PPDU shown in Figure 1d is illustrated by taking the extremely high throughput (EHT) ranging NDP as an example, and the sensing PPDU shown in Figure 1e is illustrated by taking the EHT TB ranging NDP as an example. The descriptions of the following fields shown in Figures 1b to 1e can refer to the relevant standards or protocols and will not be described in detail here: legacy short training field (L-STF), legacy long training field (L-LTF), legacy signaling (L-SIG) field, legacy signaling repeated (RL-SIG) field, high efficiency signaling field A (HE-SIG), high efficiency short training field (HE-LTF), universal signaling (U-SIG) field, extremely high throughput short training field (EHT-STF), extremely high throughput signaling (EHT-SIG) field or packet extension (PE). Of course, the perception PPDU shown in Figures 1b to 1e is only an example. As the standard progresses, other formats of perception PPDU will appear in the future, and the embodiments of the present application are not limited to this. The 8us per EHT-LTF shown in Figure 1d may include 8us per EHT-LTF symbol using 2x EHT-LTF. The lengths of the various fields in the NDP shown in Figures 1b to 1e are only examples and should not be construed as limiting the embodiments of the present application.

[0133] Sensing receiver: A device that receives sensing PPDUs.

[0134] Figure 2 is a stage diagram of a perception process provided by an embodiment of the present application. In the 802.11bf standard, the perception devices will first perform capabilities exchange between the devices, as shown in the sensing capabilities exchange stage in Figure 2. Through the interaction of basic capabilities, the perception devices can understand each other's perception capabilities. Exemplarily, the perception initiator can send a perception capability element to the perception responder, and the perception capability element can carry the perception capability of the perception initiator. The perception responder can send a perception capability element to the perception initiator, and the perception capability element can carry the perception capability of the perception responder.

[0135] After the perception device completes the capability interaction, when it needs to initiate a perception measurement session, the perception initiator can initiate the establishment of the perception measurement session by sending a perception measurement request frame, and the perception responder receives the perception measurement request and replies with a perception measurement response frame. During this perception measurement session phase, the perception initiator assigns different roles and parameters to different perception responders for different perception tasks to complete the establishment of the perception measurement session. During this perception measurement session phase, the relevant parameters in perception are mainly negotiated, such as the receiving / transmitting role of the device, the perception bandwidth, whether the channel state information (CSI) matrix needs to be fed back, and whether the perception measurement report frame needs to be fed back.

[0136] After completing the establishment of the sensing measurement session, the sensing initiator can initiate one or more sensing measurement exchanges. Sensing measurement exchanges can be divided into trigger-based (TB) sensing measurement exchanges (TB sensing measurement instance) and non-trigger-based (Non-TB) sensing measurement exchanges (Non-TB sensing measurement instance). TB sensing measurement exchanges are generally initiated by the AP (e.g., the AP acts as the sensing initiator), while non-TB sensing measurement exchanges are generally initiated by the STA (e.g., the STA acts as the sensing initiator).

[0137] Figure 3a is a schematic diagram of a TB perception measurement interaction process provided by an embodiment of the present application. As shown in Figure 3a, the TB perception measurement interaction may include at least one of the following phases: a polling phase, an NDPA sounding phase, a trigger frame (TF) sounding phase, and a reporting phase.

[0138] In the TB perception measurement interaction scenario, the AP, as the perception initiator, can send a perception polling trigger frame to the STAs it wants to invite to participate in this interaction measurement during the polling phase to invite each STA to participate. The participating STAs can reply with a clear to send (CTS) (CTS to self) frame to confirm their participation. As shown in Figure 3a, the AP can invite STA1 to STA6 to participate in this perception measurement interaction process. STA1, STA2, STA4, and STA5 confirm their participation in this perception measurement interaction. During the NDPA detection phase, the AP sends a perception NDPA frame to multiple responders that confirm their participation in NDPA detection, and sends an SI2SR NDP after a short inter-frame space (SIFS). The responders receive the SI2SR NDP based on the information in the perception NDPA frame to implement perception measurement. During the TF detection phase, the AP sends a perception SR2SI detection trigger frame to multiple responders that confirm their participation in TF detection. The responders send an SR2SI NDP based on the information allocated in the SR2SI detection trigger frame to implement perception measurement. In the reporting phase, the AP may send a perception report trigger frame to multiple responding ends that confirm participation in the reporting phase, and the responding ends send perception measurement report frames according to the perception report trigger frame.

[0139] The roles of STA1 to STA2 in Figure 3a can be perception transmitters, and the roles of STA4 to STA6 can be perception receivers. When the AP sends a perception polling trigger frame to STA1 to STA5, STA3 does not reply with a CTS-to-self frame, so STA3 does not participate in the perception process. The perception polling trigger frame is optional, so STA6 can skip the polling phase. The negotiation between the AP and STA4 may not feedback the perception measurement results. Therefore, although STA4 in Figure 3a completes the perception measurement based on the SI2SR NDP it received, in the reporting phase, STA4 may not report the perception measurement results through the perception measurement report frame, such as reporting the perception measurement results through the upper layer. For example, the perception measurement results may include CSI or channel impulse response (CIR), etc. For ease of description, CSI will be used as an example when some examples are involved below, but it should not be understood as a limitation on the embodiments of the present application.

[0140] As the standard progresses, the specific process of TB perception measurement interaction may change. Therefore, the process of TB perception measurement interaction shown in Figure 3a is only an example and should not be understood as limiting the embodiments of the present application.

[0141] Figure 3b is a flow chart of a Non-TB perception measurement interaction provided in an embodiment of the present application. In the Non-TB perception measurement interaction scenario, STA, as the perception initiator, can send a perception NDPA frame and send SI2SR NDP after SIFS. AP, as the perception responder, sends SR2SI NDP after SIFS. And after SIFS, the reporting phase is carried out, and the AP includes the measured results in the perception measurement report frame and feeds it back to the perception initiator. Exemplarily, the result reported by the AP can be a perception measurement result obtained based on SI2SR NDP (such as including CSI from STA to AP). After the AP sends SR2SI NDI and the STA receives the SR2SI NDP, it can obtain the perception measurement result (such as including CSI from AP to STA) based on the SR2SI NDP.

[0142] In the Non-TB perception measurement interaction, the STA can flexibly configure the channel measurement from STA to AP and / or the channel measurement from AP to STA through the perception NDPA frame. For example, when the configuration between STA and AP is not to measure, the SI2SR NDP can be a third NDP, and the AP may not send the perception measurement report frame. For example, when the configuration between AP and STA is not to measure, the SR2SI NDP can be a third NDP. The third NDP may consider that the air interface time is less than or equal to a certain threshold. The embodiment of the present application does not limit the specific value of the threshold. Alternatively, the SR2SI space-time stream number (NSTS) (or the SR2SI spatial stream number (NSS)) field in the third NDP can be set to 0, and / or the SR2SI repetition (SR2SI rep) field of the third NDP is set to 0. Alternatively, the SI2SR NSTS (or SI2SR NSS) field in the third NDP can be set to 0, and / or the SI2SR repetition (SI2SR rep) field of the third NDP is set to 0.

[0143] The perception measurement interaction shown below in the embodiments of the present application may include a trigger-based perception measurement interaction, and may also include a non-trigger-based perception measurement interaction. The TB perception measurement interaction and the Non-TB perception measurement interaction shown above are only examples, and Figures 3a and 3b show the basic processes therein. A TB perception measurement interaction may include one or more phases in the polling phase, the TF detection phase, the NDPA detection phase or the reporting phase. There are many potential variants, which are not listed here one by one. Exemplarily, a perception measurement interaction may include a TF detection phase (i.e., the polling phase, the NDPA detection phase and the reporting phase do not appear); or, include a polling phase, an NDPA detection phase (i.e., the TF detection phase and the reporting phase do not appear); or, include a polling phase and a TF detection phase (i.e., excluding the NDPA detection phase and the reporting phase), etc., which are not listed here one by one.

[0144] After a period of time, if the perception initiator or the perception responder no longer needs the perception measurement session, the perception initiator or the perception responder may close the perception session by sending a perception measurement session termination frame, as shown in the perception measurement session termination phase in FIG2 .

[0145] The perception process shown in Figure 2 can correspond to different perception tasks. For example, the perception initiator can initiate a perception process for a fall detection task. During the perception measurement interaction phase, the perception initiator can detect the target information by sending several perception PPDUs. For another example, the perception initiator can initiate a perception process for a breathing detection task. During the perception measurement interaction phase, the perception initiator can also detect the target information by sending several perception PPDUs. The target information listed here may include the movement of the target, etc. The target detected by the perception process can be in motion or in a stationary state, which is not limited in the embodiments of the present application.

[0146] The processes shown in Figures 2, 3a and 3b are only examples. As the standard progresses, the perception process or perception measurement interaction process may change. Therefore, the processes shown in Figures 2, 3a and 3b should not be understood as limitations on the embodiments of the present application.

[0147] The following introduces another perception communication method involved in an embodiment of the present application.

[0148] Sensing by proxy (SBP) initiator: The device that initiates the SBP process, or the device that initiates the SBP request frame. Generally speaking, the SBP initiator can be a STA.

[0149] SBP responder: A device that responds to the SBP process, or a device that receives an SBP request frame and replies with an SBP response frame. Typically, the SBP responder can be an AP.

[0150] Figure 4 is a schematic diagram of an SBP process provided by an embodiment of the present application. As shown in Figure 4, STA1, as an SBP initiator, sends an SBP request frame to the AP. As an SBP responder, after receiving the SBP request frame (referred to as SBP request in Figure 4), the AP will establish perception with the corresponding perception responder according to the parameters carried in the SBP request frame, complete the measurement and provide feedback. If the AP replies with an SBP response frame (referred to as SBP response in Figure 4) after receiving the SBP request frame, the AP can initiate a perception measurement session as a perception initiator. For example, the AP can send perception measurement request frames to STA1 and STA2 respectively. Figure 4 is an example of STA1 acting as both an SBP initiator and a perception responder. In a specific implementation, STA1 may not participate in the perception measurement session initiated by the SBP responder (that is, STA1 may not be a perception responder).

[0151] Illustratively, the SBP process may also include a feedback phase (not shown in FIG4 ) and a shutdown phase (not shown in FIG4 ). For example, in the SBP feedback phase (not shown in FIG4 ), the AP, as the SBP responder, may collect sensing results and then feed them back to the SBP initiator (e.g., STA1). In the SBP shutdown phase (not shown in FIG4 ), the SBP initiator may shut down the established SBP process.

[0152] The perception measurement request sent by the AP to STA1 or STA2 shown in Figure 4 is merely an example and should not be construed as limiting the embodiments of the present application. The order of the SBP response and the perception measurement request in Figure 4 is not limited in the embodiments of the present application. For a description of the perception measurement request and perception measurement response in Figure 4, please refer to Figure 3a or the following text, and will not be further described here.

[0153] The various processes shown in Figures 2 through 4 are illustrated using the example of a separate transmit-receive process. The processes after the introduction of self-transmitting and self-receiving sensing can be referenced below. Of course, the sensing process after the introduction of self-transmitting and self-receiving sensing can also have the four stages shown in Figure 2. The processes after the introduction of self-transmitting and self-receiving sensing can also refer to Figures 2 through 4. Any overlap between the processes shown below and those above will not be repeated below.

[0154] The following will introduce another perception communication method involved in an embodiment of the present application in combination with the four stages shown in Figure 2.

[0155] FIG5a is a flow chart of a perception communication method provided by an embodiment of the present application. As shown in FIG5a , the method includes:

[0156] 501. Perception device #1 sends first capability indication information to perception device #2, and perception device #2 receives the first capability indication information.

[0157] 502. Perception device #2 sends second capability indication information to perception device #1, and perception device #1 receives the second capability indication information.

[0158] During the sensing capability interaction phase, it is not yet possible to distinguish which device is the sensing initiator and which device is the sensing responder. Therefore, Figure 5a uses sensing device #1 and sensing device #2 as an example. As an example, sensing device #1 can be an AP and sensing device #2 can be an STA. As another example, sensing device #1 can be an STA and sensing device #2 can be an AP. As an AP can exchange capabilities with one or more STAs respectively, the specific types of sensing devices are not listed here. Generally speaking, after the capability interaction is completed, the sensing device that sends the sensing measurement request frame can be the sensing initiator.

[0159] The first capability indication information can be used to indicate the capabilities of sensor #1, and the second capability indication information can be used to indicate the capabilities of sensor #2. For example, the first capability indication information can be carried in a first sensory capability element. The second capability indication information can be carried in a second sensory capability element. Although the objects indicating the capabilities are different, the formats of these two sensory capability elements are similar.

[0160] For the sake of simplicity, the following text will no longer distinguish between the first perception capability element and the second perception capability element, and will take the perception capability element as an example for explanation. For example, the perception capability element can be carried in any of the following frames: association request frame, association response frame, reassociation request frame, reassociation response frame, probe request frame, probe response frame. In combination with the specific type of the perception device, the perception device can send corresponding frames, which will not be described in detail here. The format of the perception capability element is described in detail below.

[0161] The sensing capability element may include a monostatic support field, which may be used to indicate whether the transmitter of the sensing capability element supports monostatic sensing. The monostatic support field may also be referred to as a monostatic sensing support field, etc., and this name is not limited in the embodiments of the present application.

[0162] The number of bits (or bytes) occupied by each field in each frame given in the drawings of the embodiments of the present application, the order, etc. are only examples, and should not limit the frame format or frame length or the order of each field proposed in the embodiments of the present application. The names of the various frames and the fields contained in the drawings of the embodiments of the present application are only examples, and should not limit the various frames proposed in the embodiments of the present application. For ease of description, the various embodiments shown in this application are shown as "fields" and do not specifically distinguish between "fields", "subfields", "elements", "sub-elements", etc. Although the various embodiments shown in this application do not specifically distinguish between "fields", "subfields", "elements", and "sub-elements", those skilled in the art can adaptively distinguish the relationship between the various fields shown in the embodiments of the present application.

[0163] Figure 5b is a format diagram of a perception capability element provided in an embodiment of the present application. As shown in Figure 5b, the perception capability element may include the following fields: element ID, length, element ID extension, and sensing. The sensing field may include a self-transmitting and self-receiving support field. Exemplarily, as shown in Figure 5b, the self-transmitting and self-receiving support field may occupy 1 bit. The relationship between the value and the meaning of the field may be as follows: 1 indicates that the sending end of the perception capability element supports self-transmitting and self-receiving perception, and 0 indicates that the sending end of the perception capability element does not support self-transmitting and self-receiving perception. Of course, the relationship between the value and the meaning shown here is only an example, and the embodiment of the present application does not limit this.

[0164] The position and length of the self-transmission and self-reception support field shown in Figure 5b are only examples. In a specific implementation, the self-transmission and self-reception support field can also be located at other positions in the perception field, or the self-transmission and self-reception support field can also occupy more bits. This is not limited in the embodiments of the present application. The name of the self-transmission and self-reception support field is only an example. For example, the self-transmission and self-reception support field can also be called whether the self-transmission and self-reception is supported field, or the self-transmission and self-reception field, or the self-transmission and self-reception capability field, etc., which are not listed here one by one. The description of the position, length, and name of the self-transmission and self-reception support field here also applies to the other fields shown below and will not be repeated below.

[0165] Exemplarily, the perception field may further include at least one of the following: maximum supported bandwidth (BW), maximum number of transmit (TX) streams less than or equal to 80 MHz (Max TX STS ≤ 80 MHz), maximum number of supported sessions (Max Supported Sessions), whether responder-to-responder perception is supported (SR2SR Supported), maximum number of receive (RX) antennas (Max RX Antennas), etc. Exemplarily, FIG5c is a schematic diagram of the format of a perception field provided in an embodiment of the present application.As shown in Figure 5c, the perception capability element may include a self-transmission and self-reception support field, and the perception capability element may also include at least one of the following: responder needed, bandwidth (BW), maximum number of transmission streams (Max TX STS≤80MHz) when the bandwidth is less than or equal to 80MHz, maximum number of transmission streams (Max TX STS=160MHz) when the bandwidth is equal to 160MHz, maximum number of transmission streams (Max TX STS=320MHz) when the bandwidth is equal to 320MHz, maximum number of reception streams (Max RX STS≤80MHz) when the bandwidth is less than or equal to 80MHz, maximum number of reception streams (Max RX STS=160MHz) when the bandwidth is equal to 320MHz, maximum number of reception streams (Max RX STS=320MHz) when the bandwidth is equal to 320MHz, maximum number of transmitted HE-LTF repetitions (Max TX HE-LTF repetition), maximum number of received HE-LTF repetitions (Max RX HE-LTF repetition), maximum total number of transmitted HE-LTFs (Max TX HE-LTF total), maximum received HE-LTF total (Max RX HE-LTF total), maximum received EHT-LTF total (Max TX EHT-LTF total), device class (device class), full bandwidth uplink multi-user multiple-input multiple-output (multi-user multiple-input multiple-output, MU-MIMO) (fullbandwidth UL MU-MIMO), maximum number of supported sessions (maxsupportedsessions), minimum measurement interval (minmeasurementinterval), polling required (pollrequired), threshold-based reporting (threshold-basedreporting), subcarrier smoothing Ng=16, perception response end to perception response end support (SR2SR supported), maximum number of receive antennas (max RX antennas). The order and length of the fields in Figure 5c are not limited in the embodiment of the present application. For the description of B0~B70 in the perception capability element shown in Figure 5c, please refer to the relevant standards or protocols and will not be described in detail here. The sensing capability element shown in FIG5c is only an example. As the standard progresses, the capabilities indicated in the sensing capability element may change, and this embodiment of the application does not limit this. The embodiment of the application does not limit the length or order of the self-transmitting and self-receiving support fields shown in FIG5c.

[0166] Whether a sensing device supports autonomous transmission and reception sensing may be related to the hardware capabilities of the sensing device. For example, when the sensing device supports autonomous transmission and reception sensing, because the sensing device needs to both transmit and receive sensing PPDUs, energy leakage may occur between the transmitting and receiving antennas. For example, interference from leakage from the transmitting antenna may cause ADC saturation in the receiving link. Therefore, whether a sensing device supports autonomous transmission and reception sensing may be related to at least one of the following hardware capabilities of the sensing device: antenna, radio frequency, or baseband chip.

[0167] Exemplarily, the method shown in Figure 5a or the perception capability elements shown in Figures 5b and 5c can be applied to the perception capability interaction stage (as shown in Figure 2), or to other similar spontaneous perception scenarios, etc., and the embodiments of the present application are not limited to this.

[0168] In an embodiment of the present application, by adding a self-transmitting and self-receiving support field in the perception capability element, it can be indicated whether the perception device supports self-transmitting and self-receiving perception, so that the other side can learn more capabilities of the perception device and improve communication efficiency.

[0169] After completing the capability exchange, the sensing device may select a sensing response end and corresponding sensing parameters based on the requirements of the sensing task and establish a sensing session. For an explanation of the sensing parameters, please refer to the description in Figure 2, such as the assigned role and sensing bandwidth.

[0170] Figure 6a is a flow chart of a perception communication method provided in an embodiment of the present application. Figure 6a exemplarily illustrates a perception responder. In a specific implementation, the perception initiator can assign roles to one or more perception responders using a perception measurement request frame, which is not illustrated here one by one. Exemplarily, the perception initiator can assign the role of a perception responder using a perception measurement request frame.

[0171] As shown in FIG6a , the method includes:

[0172] 601. A sensing initiator sends a sensing measurement request frame, and a sensing responder receives the sensing measurement request frame. The sensing measurement request frame may include autonomous transmission and reception indication information, and the autonomous transmission and reception indication information is used to indicate whether the sensing responder can perform autonomous transmission and reception sensing.

[0173] For example, the self-transmitting and self-receiving indication information can be used to indicate whether the sensing responding end is in the self-transmitting and self-receiving sensing role. The sensing initiating end can allocate the self-transmitting and self-receiving sensing role to the sensing responding end through the self-transmitting and self-receiving indication information.

[0174] Exemplarily, the perception measurement request frame may also include perception transmitter indication information and perception responder indication information. The perception transmitter indication information may be used to indicate whether the perception responder is a perception transmitter, or whether the perception responder is assigned the role of a perception transmitter. The perception receiver indication information is used to indicate whether the perception responder is a perception receiver, or whether the perception responder is assigned the role of a perception receiver. When the perception transmitter indication information indicates that the perception responder is a perception transmitter, and the perception receiver indication information indicates that the perception responder is a perception responder, it means that the perception responder is a perception transmitter or a perception responder in different measurement interactions, or a perception transmitter or a perception responder in different stages of the same measurement interaction. For example, in the process of TB perception measurement interaction, the perception responder can participate in the TF detection phase as a perception transmitter, and can also participate in the NDPA detection phase as a perception receiver.

[0175] However, when the spontaneous transmission and reception indication information shown in the embodiment of the present application indicates that the perception response end performs spontaneous transmission and reception perception, it means that the perception response end can be a perception sending end and a perception receiving end at the same time. The "simultaneously" shown here can include the same moment, or the same stage, etc. Exemplarily, when the roles of the perception response end are the perception sending end, the perception receiving end, and the spontaneous transmission and reception perception, it means that the perception response end can be respectively: a perception sending end, a perception receiving end, or spontaneous transmission and reception perception at different stages of a measurement interaction; or, the perception response end can be respectively: a perception sending end and spontaneous transmission and reception perception at the same stage of a measurement interaction; or, the perception response end can be respectively: a perception receiving end and spontaneous transmission and reception perception at the same stage of a measurement interaction; or, the perception response end can be respectively: a perception sending end, a perception receiving end, or spontaneous transmission and reception perception in different measurement interactions of a perception measurement session; or, the perception response end can be respectively: a perception sending end or a perception receiving end, or spontaneous transmission and reception perception in another measurement interaction, etc., which are not listed one by one here.

[0176] Figure 6b is a schematic diagram of the format of a perception measurement request frame provided by an embodiment of the present application. As shown in Figure 6b, the perception measurement request frame may include: category, public action / protected dual of public action, dialog token, perception comeback information, measurement session ID indication, and perception measurement parameters element. The perception reply information field can be used to instruct an unassociated STA to resend a perception measurement query frame within a specified time. For example, the specified time can be after the time indicated by the unassociated STA comeback after exponent field in the perception reply information field and before the time indicated by the unassociated STA comeback before exponent field in the perception reply information field. The measurement session ID indication field can be used to identify the perception measurement session initiated by the perception initiator. The sensing measurement parameter element may include: a sensing transmitter, a sensing receiver, and monostatic sensing. Exemplarily, the sensing measurement parameter element may also include a sensing measurement report request or basic service set (BSS) color information. Other fields in the sensing measurement parameter element are not shown here one by one. The order or length of each field shown in Figure 6b is only an example and should not be understood as limiting the embodiments of the present application.

[0177] The aforementioned Perception Transmitter field carries Perception Transmitter indication information, the Perception Receiver field carries Perception Receiver indication information, and the Self-Transmitted and Self-Received Perception field carries Self-Transmitted and Self-Received indication information. The Perception Transmitter field, Perception Receiver field, and Self-Transmitted and Self-Received Perception field can be described as follows. The following descriptions apply to the same Perception Measurement Parameter element or the same Perception Measurement Request frame.

[0178] Method 1: The value of the Self-transmitting and Self-receiving Perception field is independent of the values ​​of the Perception Sender field and the Perception Receiver field. In other words, whether the Perception Response End performs self-transmitting and self-receiving perception is independent of whether the Perception Response End is a Perception Sender or a Perception Receiver. Taking the field order shown in Figure 6b as an example, field B0 is the Perception Sender field, field B1 is the Perception Receiver field, and field B35 is the Self-transmitting and Self-receiving Perception field. For example, when the value of field B0 is 1, it indicates that the Perception Response End is a Perception Sender; when the value of field B0 is 0, it indicates that the Perception Response End is not a Perception Sender. When the value of field B1 is 1, it indicates that the Perception Response End is a Perception Receiver; when the value of field B1 is 0, it indicates that the Perception Response End is not a Perception Receiver. When the value of field B35 is 1, it indicates that the Perception Response End can perform self-transmitting and self-receiving perception; when the value of field B35 is 0, it indicates that the Perception Response End does not perform self-transmitting and self-receiving perception. Of course, the relationship between the values ​​and meanings of the fields shown here are only examples. For example, when the value of the B0 field is 0, it indicates that the perception responder is the perception sender; when the value of the B0 field is 1, it indicates that the perception responder is not the perception sender, etc., which will not be listed one by one here.

[0179] Table 1 exemplarily shows the relationship between the values ​​and meanings of the B0 field, the B1 field, and the B35 field. The meanings in Table 1 refer to the roles assigned by the perception transmitter to the perception responder.

[0180] Table 1

[0181] As can be seen from Table 1, when a sensing responder can perform autonomous sensing, it can also be a non-sensing transmitter or receiver. In other words, whether a sensing responder can perform autonomous sensing is independent of whether it is a sensing transmitter or receiver. This allows for more flexible scheduling during sensing measurement interactions.

[0182] Mode 2: The value of the self-transmitting and self-receiving perception field is related to the value of the perception sending end field. For example, when the perception sending end field indicates that the perception responding end is the perception sending end, the perception responding end can perform self-transmitting and self-receiving perception. That is to say, when the perception responding end has the role of the perception sending end, the perception initiating end can assign the role of self-transmitting and self-receiving perception to the perception responding end. Alternatively, when the perception responding end can perform self-transmitting and self-receiving perception, the perception responding end can also be the perception sending end. For the description of the B0 field, B1 field, and B35 field, please refer to the above-mentioned mode 1 and will not be repeated here.

[0183] Table 2 exemplarily shows the relationship between the values ​​and meanings of the B0 field, the B1 field, and the B35 field.

[0184] Table 2

[0185] As can be seen from Table 2, when the value of the B0 field is 0, the perception responding end is not the perception sending end, and thus the B35 field is a reserved field. When the value of the B0 field is 1, the value of the B35 field can be either 0 or 1. When the perception responding end is the perception sending end, the perception initiating end can indicate to the perception responding end whether it can perform self-transmitting and self-receiving perception through the B35 field. Thus, the perception sending end can send the perception PPDU so that the perception receiving end receives the perception PPDU and performs perception measurement, and in this perception measurement session, the perception sending end can also receive the perception PPDU and perform perception measurement, so that in the same perception measurement session, the perception sending end can perform transmit-receive split measurement and self-transmitting and self-receiving measurement, thereby obtaining more transmit-receiver diversity gain.

[0186] Mode 3: The value of the self-transmitting and self-receiving perception field is related to the value of the perception receiving end field. For example, when the perception receiving end field indicates that the perception responding end is a perception receiving end, the perception responding end can perform self-transmitting and self-receiving perception. In other words, when the perception responding end has the role of a perception receiving end, the perception initiating end can assign the role of self-transmitting and self-receiving perception to the perception responding end. Alternatively, when the perception responding end can perform self-transmitting and self-receiving perception, the perception responding end can also be a perception receiving end. For the description of the B0 field, B1 field, and B35 field, please refer to the above-mentioned mode 1 and will not be repeated here.

[0187] Table 3 exemplarily shows the relationship between the values ​​and meanings of the B0 field, the B1 field, and the B35 field.

[0188] Table 3

[0189] As can be seen from Table 3, when the value of the B1 field is 0, the sensing responder is not a sensing receiver, and thus the B35 field is a reserved field. When the value of the B1 field is 1, the value of the B35 field can be either 0 or 1. When the sensing responder is a sensing receiver, the sensing initiator can use the B35 field to indicate whether the sensing responder can perform autonomous sensing. This allows the sensing receiver to perform autonomous sensing, which can improve measurement diversity gain.

[0190] The perception responder can learn the role assigned to it by the perception initiator through the values ​​of the B0 field, B1 field, and B35 field in the perception measurement request frame.

[0191] As shown in Figure 6b, the perception measurement parameter element may further include a perception measurement report request field (such as a B2 field). As an example, if B35 is a reserved field, if the B1 field indicates that the perception responding end is a perception receiving end, then the perception measurement report request field may be used to indicate whether the perception responding end needs to feed back a perception measurement report to the perception initiating end; if the B1 field indicates that the perception responding end is not a perception receiving end, then the perception measurement report request field is a reserved field. As another example, if B35 is not a reserved field, that is, the B35 field may indicate whether the perception responding end performs self-transmitting and self-receiving perception. If the B1 field indicates that the perception responding end is not a perception receiving end, then the perception measurement report request field is a reserved field. That is, after adding the self-transmitting and self-receiving perception field to the perception measurement parameter element, since the perception responding end plays the role of self-transmitting and self-receiving perception, the perception responding end can obtain the self-transmitting and self-receiving perception measurement results. However, the roles of the self-transmitting and self-receiving sensing end and the sensing receiving end do not necessarily completely overlap. Therefore, the setting rules of the sensing measurement report request field can be modified as follows: when the sensing responder is not a sensing receiving end and the sensing responder does not perform self-transmitting and self-receiving sensing, the B2 field is a reserved field. In other words, when the sensing responder has the sole role of a sensing transmitter (not a sensing receiver and does not perform self-transmitting and self-receiving sensing), the B2 field is a reserved field.

[0192] 602. The sensing responding end sends a sensing measurement response (sensingmeasurementresponse) frame, and the sensing transmitting end receives the sensing measurement response frame.

[0193] The perception measurement response frame is a response frame for the perception request frame. By replying to the perception measurement response frame, the perception response end can make the perception initiator know that the perception response end has received the perception request frame. Figure 6c is a format diagram of a perception measurement response frame provided in an embodiment of the present application. As shown in Figure 6c, the perception measurement response frame may include at least one of the following: category, public action / protected dual public action (publicaction / protecteddualofpublicaction), dialog token (dialogtoken), measurement session ID indication (measurementsession ID indication), status code (statuscode), decline duration indication (declinedurationindication) or perception measurement parameter element (sensingmeasurementparameterselement). For the relevant description of Figure 6c, please refer to the relevant standards or protocols and will not be described in detail here.

[0194] Exemplarily, the method shown in Figure 6a or the perception measurement request frame shown in Figure 6b or the perception measurement response frame shown in Figure 6c can be applied to the interaction process of the perception measurement session (as shown in Figure 2), or applied to other similar scenarios of self-transmitting and self-receiving perception, etc., which are not limited in this embodiment of the present application. When the method shown in Figure 6a is applied to the perception measurement session stage shown in Figure 2, the method shown in Figure 6a can also be combined with the method shown in Figure 5a, which will not be described in detail here.

[0195] In this embodiment of the present application, by adding self-transmission and self-reception indication information to the perception measurement request frame, the perception initiator can assign more role types to the perception responder, allowing the perception responder to support the perception process of self-transmission and self-reception, further enriching the perception measurement session process. Furthermore, since the perception PPDU is sent and received by the same device, it is not affected by errors such as carrier frequency deviation or sampling frequency deviation, thereby improving the accuracy of the perception measurement results and enhancing perception performance.

[0196] FIG7a is a flow chart of a perception communication method provided by an embodiment of the present application. As shown in FIG7a , the method includes:

[0197] 701. The sensing initiator sends a sensing NDPA frame, and the sensing responder receives the sensing NDPA frame. The sensing NDPA frame may include detection indication information, and the detection indication information may be used to indicate whether the sensing responder needs to: receive a sensing PPDU, estimate CSI, buffer CSI, or report CSI.

[0198] In an embodiment of the present application, the detection indication information is for the current NDPA measurement phase. For example, the above-mentioned detection indication information can be used to indicate whether the perception responder needs to perform at least one of the following in the phase corresponding to the perception NDPA frame: receiving perception PPDU, estimating CSI, caching CSI, or reporting CSI.

[0199] 702. The perception initiator sends a perception PPDU.

[0200] Generally speaking, in the NDPA measurement phase, the sensing initiator (such as AP) sends a sensing NDPA frame and SI2SR NDP to one or more sensing responders (which are also sensing receivers). These sensing responders (which are also sensing receivers) can estimate the channel state information (CSI) and report the CSI by receiving the SI2SR NDP. For example, the CSI can be reported through a sensing measurement report frame or through an upper layer.

[0201] However, in an embodiment of the present application, the sensing initiator may indicate to the sensing responder whether it needs to receive a sensing PPDU, etc., through a probe indication message. For example, the sensing PPDU may include an SI2SR NDP. For example, the sensing initiator may send probe indication messages to multiple sensing responders, respectively, and instruct each sensing responder through the probe indication message whether it needs to receive the sensing PPDU. For example, some of the multiple sensing responders may need to receive the sensing PPDU, while others may not. For another example, all of the multiple sensing responders may receive the sensing PPDU, or none of the multiple sensing responders may receive the sensing PPDU.

[0202] As an example, when the sounding indication information indicates that the sensing responder does not need to receive a sensing PPDU, the sensing responder may not perform at least one of the following: receiving a sensing PPDU, estimating CSI, buffering CSI, or reporting CSI. This can effectively conserve resources and power consumption of the sensing responder. For example, the sensing responder may not receive a sensing PPDU, and thus may not estimate, buffer, or report CSI. In another example, the sensing responder may receive a sensing PPDU and estimate CSI, but may not buffer or report CSI. In another example, the sensing responder may receive a sensing PPDU but may not estimate, buffer, or report CSI. In this example, for the same sensing measurement interaction, the sensing responder may not receive the sensing PPDU, for example, if the sensing initiator can perform autonomous sensing. For example, if autonomous sensing can be performed by the AP, the STA may not receive the sensing PPDU after receiving the sensing NDPA frame. Exemplarily, the sounding indication information indicating that the sensing responder does not need to receive a sensing PPDU may also implicitly indicate that the sensing initiator will perform autonomous sensing. For ease of description, the embodiments of the present application use the example of using detection indication information to perceive whether the responding end needs to receive the perception PPDU when involving some examples, but this should not be understood as a limitation of the embodiments of the present application.

[0203] As another example, when the detection indication information instructs the perception responder to receive the perception PPDU, the perception responder can receive the perception PPDU, estimate the CSI, buffer the CSI, and report the CSI. In this example, for the same perception measurement interaction, if the perception initiator can perform self-transmitting and self-receiving perception, the perception measurement can include the measurement based on SI2SR by the perception responder and the measurement based on self-transmitting and self-receiving perception by the perception initiator. Therefore, after obtaining the measurement result of self-transmitting and self-receiving perception and the perception measurement result fed back by the perception responder, the perception initiator can further compare the two perception measurement results. For another example, if the perception initiator can perform self-transmitting and self-receiving perception, the measurement at this time is the measurement based on SI2SR by the perception responder.

[0204] Exemplarily, the detection indication information can be carried in the SI2SR sounding field in the STA information (STA info) field in the perception NDPA frame. Figure 7b is a format diagram of the STA information field of a perception NDPA frame provided in an embodiment of the present application. As shown in Figure 7b, the STA information field may include at least one of the following items: associated ID (AID) 11 SI2SR space-time stream number (NSTS) (or SI2SR spatial stream number (NSS)), SI2SR repetition (SI2SR rep), disambiguation, SI2SR sounding. Figure 7b is shown as an example where the SI2SR detection field is located at B28, but it should not be understood as a limitation on the embodiment of the present application. The AID11 field can be used to indicate the identification of the perception response end. Figure 7b is shown as an example where AID11 is used, but it should not be understood as a limitation on the embodiment of the present application. The value of the AID11 field shown in Figure 7b can be less than 2008. Of course, when the STA information field includes the AID12 field, the value of the AID12 field can vary and is not limited. The names, order, and lengths of the various fields shown in FIG7b are only examples and should not be understood as limiting the embodiments of the present application.

[0205] For example, if the value of the B28 field is 1, the field may be used to indicate that the perception response end needs to receive perception SI2SR. For example, the perception response end needs to receive perception SI2SR, estimate CSI, buffer CSI, and report CSI. For another example, if the value of the B28 field is 0, the field may be used to indicate that the perception response end does not need to receive perception SI2SR. For example, the perception response end does not need to receive perception SI2SR, estimate CSI, buffer CSI, or report CSI.

[0206] Exemplarily, the method shown in Figure 7a can be applied to the NDPA measurement phase in the TB measurement interaction (as shown in Figure 2), or to other similar scenarios of spontaneous and self-receiving perception, etc., and the embodiments of the present application are not limited to this. When the method shown in Figure 7a is applied to the NDPA measurement phase in the perception measurement interaction phase as shown in Figure 2, the method shown in Figure 7a can also be combined with the method shown in Figure 5a, or combined with the method shown in Figure 6a, etc., which will not be described in detail here.

[0207] In an embodiment of the present application, the perception initiator instructs the perception responder whether to receive the perception PPDU and other behaviors through the perception NDPA frame. For example, the perception responder may not receive the perception PPDU, etc., thereby saving resources and power consumption.

[0208] During the TF detection phase, the sensing initiator (such as an AP) can send a trigger frame to trigger one or more sensing responders to send a sensing PPDU. The sensing initiator receives these sensing PPDUs to perform channel estimation and obtain CSI. In an embodiment of the present application, a self-transmitting and self-receiving sensing mode can be added during the TF detection phase. The self-transmitting and self-receiving sensing mode can be integrated with the existing TF detection mode or exist independently. The following details are described.

[0209] FIG8a is a flow chart of a perception communication method provided in an embodiment of the present application. As shown in FIG8a , the method includes:

[0210] 801. A sensing initiator sends a sensing detection trigger frame, and a sensing responder receives the sensing detection trigger frame. The sensing detection trigger frame may include self-transmission and self-reception indication information.

[0211] For an explanation of the self-transmitting and self-receiving indication information, please refer to the description of step 601 in Figure 6a and will not be described in detail here. The self-transmitting and self-receiving indication information shown in Figure 8a may be for this TF measurement phase. As in the embodiment of the present application, the self-transmitting and self-receiving indication information can be used to indicate whether the sensing responding end performs self-transmitting and self-receiving sensing in the phase corresponding to the sensing detection trigger frame. For example, the sensing initiating end can send a detection trigger frame to one or more sensing responding ends respectively.

[0212] 802. The perception responder sends a perception PPDU.

[0213] The steps performed by the perception responder / perception initiator may vary depending on the specific content of the self-sending and self-receiving indication information.

[0214] Implementation method 1:

[0215] The user information (userinfo) field of the perception detection trigger frame includes self-transmission and self-reception indication information.

[0216] For example, Figure 8b is a format diagram of a user information field of a perception detection trigger frame provided in an embodiment of the present application. As shown in Figure 8b, the user information field may include at least one of the following: AID12 / USID12, SR2SI repetition (SR2SI rep), spatial stream (SS) allocation / random access-resource unit (RA-RU) information, uplink target receive power (uplink target receive power) or monostatic sensing. AID12 / USID12 can be used to indicate the identification of the perception responder. Figure 8b is shown as an example of AID12 or USID12, but it should not be understood as a limitation to the embodiment of the present application. The value of AID12 / USID12 shown in Figure 8b may not be equal to a value that already has other uses. As shown in Figure 8b, AID12 / USID12 may not be equal to 2008, or AID12 / USID12 may not be equal to 2009, etc., which are not listed here one by one. The embodiment of the present application does not limit the number of bits occupied, order, and name of each field shown in Figure 8b.

[0217] As an example, when the value of the Self-Transmitted and Self-Received Awareness field is 1, it indicates that the sensing responder can perform self-transmitted and self-received sensing. For example, the sensing responder can perform the following steps: sending an SR2SI NDP, receiving an SR2SI NDP, estimating CSI, reporting CSI, etc. As shown in Figure 8a, the sensing responder can send a sensing PPDU, and as shown in the dashed line portion of Figure 8a, the sensing responder can estimate CSI based on the sensing PPDU.

[0218] As another example, a value of 0 in the Self-Transmitted and Self-Received Awareness field indicates that the Awareness Responder may not perform self-transmitted and self-received sensing. For example, the Awareness Responder may send an SR2SINDP. The Awareness Initiator receives the SR2SI NDP and estimates CSI based on the SR2SI NDP. As shown in Figure 8a, the Awareness Responder may send an Awareness PPDU, and as shown in the dashed line portion of Figure 8a, the Awareness Initiator may estimate CSI based on the Awareness PPDU.

[0219] In this implementation, the perception initiator can flexibly adjust the behavior of the perception responder participating in this perception measurement interaction through the self-transmission and self-reception indication information, such as scheduling the perception responder as the sender of the SR2SI NDP, or scheduling the perception responder to perform self-transmission and self-reception perception. For example, in the TF measurement phase of a TB measurement interaction, the AP can schedule some or all perception responders to send SR2SI NDP, or schedule some or all perception responders to perform self-transmission and self-reception perception. By carrying the self-transmission and self-reception indication information in the user information field, the perception responder corresponding to the user information field can be flexibly scheduled to perform self-transmission and self-reception perception.

[0220] Implementation method 2:

[0221] The common information field of the sensing detection trigger frame includes the self-transmission and self-reception indication information. By adding the self-transmission and self-reception indication information to the common information field, the sensing initiator can schedule all sensing responders to perform self-transmission and self-reception through the sensing detection trigger frame. All sensing responders shown here refer to all sensing responders in this TF detection phase.

[0222] Exemplarily, Figure 8c is a format diagram of a common information field of a perception detection trigger frame provided in an embodiment of the present application. As shown in Figure 8c, the common information field includes at least one of the following: perception trigger subtype (sensingtriggersubtype), perception (sensing), token (token), and monostatic sensing (monostaticsensing). Exemplarily, the common information field may also include at least one of a measurement session ID field or a measurement interaction ID field. The measurement session ID field can be used to indicate the ID of the perception measurement session, such as the measurement session ID field can identify this perception measurement session. The measurement interaction ID field can be used to indicate the ID of the perception measurement interaction, such as the measurement interaction ID field can identify this perception measurement interaction. The common information field shown in Figure 8c can also be called a trigger-dependent common information (trigger dependent common Info) field, and the name of this field is not limited in the embodiment of the present application.

[0223] By adding a measurement session ID field or a measurement interaction ID field to the common information field, the perception responding end that performs autonomous self-receiving perception can be informed that this autonomous self-receiving perception is a perception measurement of the perception measurement interaction indicated by the measurement interaction ID field in the perception measurement session indicated by the measurement session ID field established between it and the perception initiating end. Exemplarily, the perception responding end that performs autonomous self-receiving perception may also carry the measurement session ID field or the measurement interaction ID field in the perception measurement report frame during the reporting phase. Thus, the perception initiating end can be informed of the perception measurement session to which the perception measurement result carried in the perception measurement report frame belongs, as well as the perception measurement interaction.

[0224] Figure 8e is a schematic diagram of the format of a perception detection trigger frame provided in an embodiment of the present application. As shown in Figure 8e, the perception detection trigger frame may include a common information field and a user information list, and the user information list may include one or more user information fields. For a description of the perception detection trigger frame shown in Figure 8e, please refer to the relevant standards or protocols and will not be described in detail here.

[0225] For example, Figure 8d is a flow diagram of a TB sensing measurement interaction provided by an embodiment of the present application. As shown in Figure 8d, the AP is the sensing initiator, and STA1 and STA2 are the sensing responders. As shown in Figure 8d, the AP sends a sensing detection trigger frame to STA1 and STA2, respectively, allowing STA1 and STA2 to determine whether they are performing self-transmission and self-reception sensing based on the self-transmission and self-reception indication information in the sensing detection trigger frame. As an example, the AP can instruct STA1 and STA2 to perform self-transmission and self-reception sensing through the sensing detection trigger frame. For example, STA1 or STA2 can each send and receive a sensing PPDU, based on CSI, etc. As another example, the AP can instruct STA1 to perform self-transmission and self-reception sensing through the sensing detection trigger frame. For example, STA2 can perform bidirectional sensing. As a result, STA1 can send and receive a sensing PPDU, and estimate CSI, etc. STA2 can send a sensing PPDU, and the AP can receive the sensing PPDU and estimate CSI, etc. These details are not listed here. For further explanation of Figure 8d, please refer to Figure 3a and other figures, and will not be described in detail here.

[0226] By carrying the self-transmitting and self-receiving indication information in the common information field, all perception response ends can be instructed to perform self-transmitting and self-receiving perception, or all perception response ends can be instructed not to perform self-transmitting and self-receiving perception, thereby saving signaling overhead and efficiently managing the behavior of all perception response ends.

[0227] The above implementation method 1 and implementation method 2 are illustrated by taking the perception detection trigger frame as the perception SR2SI detection trigger frame and the perception PPDU as the SR2SI NDP as an example. The following will be explained by taking the perception detection trigger frame as the perception SR2SR detection trigger (SR2SR sounding trigger) frame and the perception PPDU as the SR2SR NDP as an example.

[0228] Exemplarily, Figure 9a is a flow chart of a TB perception measurement interaction provided by an embodiment of the present application. As shown in Figure 9a, in the TF detection phase, the AP may send a perception detection trigger frame (such as a perception SR2SR detection trigger frame) to STA1 and STA2 respectively, and then STA2 may send an SR2SR NDP to STA1. As an example, STA1 may estimate CSI based on the SR2SR NDP, and report CSI. As another example, STA2 may perform self-transmitting and self-receiving perception, and the STA2 may receive the SR2SR NDP, estimate CSI based on the SR2SR NDP, and report CSI. As another example, STA2 may perform self-transmitting and self-receiving perception, such as STA2 sending an SR2SR NDP, receiving the SR2SR NDP, estimating CSI, reporting CSI, etc. At the same time, STA1 also receives the SR2SR NDP, estimates CSI, reports CSI, etc. For other explanations of Figure 9a, please refer to Figure 3a, etc., which will not be described in detail here.

[0229] Implementation method three:

[0230] At least one item in a transmitter user information (transmitter user info) field or a receiver user information (receiver user info) field in the perception detection trigger frame includes self-transmission and self-reception indication information.

[0231] The transmitting user information field is the information indicated by the perception initiator to the perception sending end, and the receiving user information field is the information indicated by the perception initiator to the perception receiving end. In other words, the perception responder can know whether it is a perception sending end or a perception receiving end in this SR2SR measurement (SR2SR sounding) based on the transmitting end user information field and the receiving end user information field. Of course, the transmitting end user information shown here can also be referred to as transmitting user information, and the receiving end user information can also be referred to as receiving user information, etc. The names of the various fields are not limited in this embodiment of the application.

[0232] In the embodiment of the present application, by adding the self-transmission and self-reception indication information to the transmitting end user information field, not only the information of the sensing transmitting end can be indicated, but also whether the sensing initiating end performs the self-transmission and self-reception sensing. Alternatively, by adding the self-transmission and self-reception indication information to the receiving end user information field, not only the information of the sensing receiving end can be indicated, but also whether the sensing receiving end performs the self-transmission and self-reception sensing.

[0233] For example, Figure 9b is a format diagram of the transmitter user information field of a perception detection trigger frame provided in an embodiment of the present application. Figure 9c is a format diagram of the receiver user information field of a perception detection trigger frame provided in an embodiment of the present application. The transmitter / receiver (TX / RX) in Figures 9b and 9c can be used to indicate whether the perception response end is a perception transmitter or a perception receiver. If the perception response end is a perception transmitter, the perception response end can send a perception PPDU based on the information in the transmitting user information field. If the perception response end is a perception receiver, the perception response end can receive a perception PPDU based on the information in the receiving user information field. For descriptions of other fields in Figures 9b and 9c, please refer to relevant standards or protocols and will not be described in detail here.

[0234] The sensing initiator can also indicate to the sensing responder whether to perform self-transmitting and self-receiving sensing using the Self-transmitting and Self-receiving sensing field. For example, the sensing responder can be a sensing transmitter and can also perform self-transmitting and self-receiving sensing. In this case, the sensing responder can send and receive sensing PPDUs, estimate CSI, etc. For another example, the sensing responder can be a sensing receiver and can also perform self-transmitting and self-receiving sensing. In this case, the sensing responder can receive and receive sensing PPDUs, estimate CSI, etc. For another example, the sensing responder can also not perform self-transmitting and self-receiving sensing, such as being a sensing transmitter or a sensing receiver.

[0235] By carrying the self-transmission and self-reception indication information in the user information field of the transmitting end or the user information field of the receiving end, the perception response end can be flexibly scheduled to perform self-transmission and self-reception perception, etc.

[0236] Implementation method 4:

[0237] The common information field of the sensing detection trigger frame includes the self-transmitting and self-receiving indication information. For example, the trigger independent common information field of the sensing SR2SR detection trigger frame includes the self-transmitting and self-receiving indication information.

[0238] For example, Figure 9d is a schematic diagram of the format of a common information field in a sensing detection trigger frame provided in an embodiment of the present application. As shown in Figure 9d, the common information field may include a self-transmitting and self-receiving sensing field. The sensing initiator can use this self-transmitting and self-receiving sensing field to schedule all sensing responders to perform self-transmitting and self-receiving sensing. Taking Figure 9a as an example, the AP can schedule both STA1 and STA2 to perform self-transmitting and self-receiving sensing. When the sensing initiator uses the self-transmitting and self-receiving sensing field in the common information field to instruct the sensing responder to perform or not perform self-transmitting and self-receiving sensing, the functions implemented by the transmitter user information field or the receiver user information field in the sensing detection trigger frame may differ from those in Figures 9b or 9c. For example, the transmitter user information field may allocate transmission resources, such as LTF repetition, number of spatial streams, or power. The receiver user information field may be a reserved field. The specific functions of the transmitter user information field and the receiver user information field are not limited in this embodiment of the present application.

[0239] By carrying the self-transmitting and self-receiving indication information in the common information field, all perception response ends can be instructed to perform self-transmitting and self-receiving perception, or all perception response ends can be instructed not to perform self-transmitting and self-receiving perception, thereby saving signaling overhead and efficiently managing the behavior of all perception response ends.

[0240] The above implementation methods 1 to 4 are illustrated by taking the example of carrying the self-transmitting and self-receiving indication information in the SR2SI detection trigger frame or carrying the self-transmitting and self-receiving indication information in the SR2SR detection trigger frame. As described in the above implementation methods 1 to 4, it can be considered as a mixed mode of SR2SI and self-transmitting and self-receiving perception, or a mixed mode of SR2SR and self-transmitting and self-receiving perception. A separate mode is also provided below, such as adding a new detection type, such as a new trigger frame that can be used specifically for self-transmitting and self-receiving perception.

[0241] Implementation method 5:

[0242] Table 4 exemplifies the relationship between the value and meaning of the perception trigger subtype. The relationship between the values ​​and meanings shown in Table 4 is only an example and should not be understood as a limitation on the embodiments of the present application. Taking Table 4 as an example, the value of the perception trigger subtype field in the perception detection trigger shown in Figure 8c can be 1. Taking Table 4 as an example, the value of the perception trigger subtype field in the perception detection trigger frame shown in Figure 9d can be 4. However, in implementation method five, the value of the perception trigger subtype field in the perception detection trigger frame can be 5 (only as an example). The value of 5 corresponding to the spontaneous self-receiving detection shown in Table 4 is only an example. It can also be other values ​​in 6-15, which are not listed here one by one. The names of the spontaneous self-receiving detection shown in Table 4 are only examples. For example, the spontaneous self-receiving detection can also be called spontaneous self-receiving detection trigger or spontaneous self-receiving perception, etc., which are not listed here one by one.

[0243] Table 4

[0244] Exemplarily, the perception detection trigger frame can be used to schedule (or control or instruct) multiple perception devices to perform self-transmitting and self-receiving perception. For example, the perception detection trigger frame can be used to allocate resources (such as the number of LTF repetitions or the number of spatial streams, etc.) to different perception devices. Exemplarily, Figure 10a is a format diagram of the common information field of a perception detection trigger frame provided in an embodiment of the present application. Figure 10b is a format diagram of the user information field of a perception detection trigger frame provided in an embodiment of the present application. For example, the perception detection trigger frame can be called a perception self-transmitting and self-receiving detection trigger frame, etc., and the specific name of the frame is not limited in the embodiment of the present application. The SR2SI shown in Figure 10b is only an example. In a specific implementation, the perception PPDU can be an SR2SI NDP, or an SR2SR NDP, or other NDPs, and the embodiment of the present application does not limit this. Similarly, the NDP shown in Figure 10c is only an example, and the type of the NDP is not limited. For the description of Figures 10a and 10b, please refer to the above description of the perception detection trigger frame, which will not be described in detail here.

[0245] For example, Figure 10c is a process diagram of a TB measurement interaction provided by an embodiment of the present application. As shown in Figure 10c, the AP, as the perception initiator, can send a perception polling trigger frame to STA1. Since the perception polling trigger frame is optional, the AP may not send a perception polling trigger frame to STA2. Of course, the AP can also send a perception polling trigger frame to STA2. During the detection phase, the AP can send perception detection trigger frames (such as perception self-transmitting and self-receiving detection trigger frames) to STA1 and STA2 respectively. After receiving the perception detection trigger frame, STA1 and STA2 can perform self-transmitting and self-receiving perception. For example, STA1 sends NDP, receives the NDP, estimates CSI, reports CSI, etc. For another example, STA2 sends NDP, receives the NDP, estimates CSI, reports CSI, etc. For the description of other frames in Figure 10c, please refer to Figure 3a, etc., which will not be described in detail here.

[0246] Exemplarily, the method shown in Figure 8a can be applied to the TF detection phase in the TB measurement interaction (as shown in Figure 2), or to other similar scenarios of spontaneous and self-receiving perception, etc., and the embodiments of the present application are not limited to this. When the method shown in Figure 8a is applied to the TF detection phase in the perception measurement interaction phase as shown in Figure 2, the method shown in Figure 8a can also be combined with the method shown in Figure 5a, or combined with the method shown in Figure 6a, etc., which will not be described in detail here.

[0247] In the embodiment of the present application, by adding a detection trigger frame for spontaneous and self-receiving perception, the perception initiator can schedule all devices participating in the perception to perform spontaneous and self-receiving perception, which is simple to implement and can improve the perception performance through spontaneous and self-receiving perception.

[0248] For non-TB measurement interactions, the STA is generally the perception initiator. When autonomous transmission and reception can be achieved in non-TB measurement interactions, the SI2SR NDP and SR2SI NDP can be configured through the perception NDPA frame sent by the STA (perception initiator). The perception NDPA frame can also be used to instruct the perception responder whether to perform autonomous transmission and reception, or whether to receive the SI2SR NDP.

[0249] Figure 11a is a schematic diagram of a non-TB measurement interaction provided by an embodiment of the present application. As shown in Figure 11a, the sensing initiator can send a sensing NDPA frame to the sensing responder.

[0250] Exemplarily, the perception NDPA frame may include at least one of: detection indication information or self-transmission and self-reception indication information. The description of the detection indication information and the self-transmission and self-reception indication information can be found above and will not be detailed here. For example, the STA can use the detection indication information to indicate to the AP whether it needs to receive the perception PPDU. For another example, the STA can use the self-transmission and self-reception indication information to indicate to the AP whether it can perform self-transmission and self-reception perception.

[0251] For example, Figure 11b is a format diagram of the STA information field of a perception NDPA frame provided by an embodiment of the present application. As shown in Figure 11b, the STA information field may include: AID11, SR2SI NSTS, SR2SI repetition, SI2SR NSTS, self-transmitting and self-receiving perception, disambiguation, SI2SR repetition, and SI2SR detection. For the description of the self-transmitting and self-receiving perception field shown in Figure 11b, please refer to Figure 6b above, and for the description of the SI2SR detection field, please refer to the description of Figure 7b, which will not be described in detail here.

[0252] For example, the value of the B26 field is 1, indicating that the perception response end (such as an AP) can perform autonomous self-transmission and self-reception perception, such as the perception response end can send SR2SI NDP, receive SR2SI NDP, estimate CSI, etc. For another example, the value of the B26 field is 0, indicating that the perception response end does not perform autonomous self-transmission and self-reception perception. For example, the value of the B31 field is 1, indicating that the perception response end can receive SI2SR NDP, such as the perception response end can receive SI2SR NDP, estimate CSI, cache CSI, report CSI, etc. The value of the B31 field is 0, indicating that the perception response end may not receive SI2SR NDP.

[0253] As an example, when the value of the B26 field is 1 and the value of the B31 field is 0, it indicates that the perception response end can perform self-transmission and self-reception perception, and the perception response end may not receive the SI2SR NDP. If the AP can perform self-transmission and self-reception perception, the STA can also perform self-transmission and self-reception perception. Exemplarily, the STA can configure the format of the SR2SI NDP sent by the AP through the SR2SI NSTS field and the SR2SI Rep field (such as the AP can send the SR2SI NDP and receive the SR2SI NDP, thereby completing the self-transmission and self-reception perception, and the STA can choose to receive or not receive the SR2SI NDP). Since the AP may not receive the SI2SR NDP (such as the STA performs self-transmission and self-reception), optionally, the SI2SR NSTS and SI2SR Rep fields can be set to reserved (or called reserved).

[0254] As another example, when the value of B26 is 1 and the value of B31 is 1, it indicates that the perception response end can perform autonomous transmission and reception perception, and the perception response end can also receive SI2SR NDP. For example, the AP can perform autonomous transmission and reception perception, such as the AP sends SR2SI NDP, receives SR2SI NDP, and estimates CSI based on the SR2SI NDP, etc. And the STA sends SI2SR NDP, the AP receives the SI2SR NDP, and estimates CSI based on the SI2SR NDP, etc. That is, the AP can obtain two perception measurement results. For example, the AP can feed back the perception measurement results to the STA through a perception measurement report frame or an upper layer. Exemplarily, the STA can configure the format of the SR2SI NDP sent by the AP through the SR2SI NSTS field and the SR2SI Rep field (for example, the AP can send the SR2SI NDP and receive the SR2SI NDP to complete autonomous transmission and reception perception, and the STA can choose to receive or not receive the SR2SI NDP). For example, a STA can configure the format of the SI2SR NDP it sends through the SI2SR NSTS field and the SI2SR Rep field.

[0255] As another example, when the value of the B26 field is 0 and the value of the B31 field is 1, it indicates that the sensing responder does not perform autonomous sensing, but can receive the SI2SR NDP. For example, the STA can use the SR2SI NSTS field and the SR2SI Rep field to configure the format of the SR2SI NDP sent by the AP. If the STA, as the sensing initiator, does not need to measure the channel between the AP and the STA, the SR2SI NSTS field and the SR2SI Rep field can be set to 0. For example, the STA can use the SI2SR NSTS field and the SI2SR Rep field to configure the format of the SI2SR NDP it sends and receives.

[0256] Optionally, if both the SR2SI NSTS field and the SR2SI Repeat field are set to 0, this indicates that the SR2SI NDP is not configured for the NDPA frame. In this case, the SR2SI NDP is a third NDP, such as B26, and should be reserved. That is, if the NDP sent by the AP to the STA is a third NDP, then this NDP should not be used for self-transmission and self-reception sensing.

[0257] Exemplarily, the method shown in Figure 11a can be applied to the process of Non-TB measurement interaction (as shown in Figure 2), or to other similar scenarios of spontaneous and self-receiving perception, etc., and the embodiments of the present application are not limited to this. When the method shown in Figure 11a is applied to the perception measurement interaction stage as shown in Figure 2, the method shown in Figure 11a can also be combined with the method shown in Figure 5a, or combined with the method shown in Figure 6a, etc., which will not be described in detail here.

[0258] The technical solution provided in the embodiment of the present application effectively realizes the compatibility of spontaneous and self-receiving perception, so that the perception initiator can flexibly mobilize the perception responder to perform spontaneous and self-receiving perception.

[0259] For the relevant description of the SBP process, please refer to Figure 4 and will not be described in detail here. That is, the SBP process shown in the embodiment of the present application can be the same as the SBP process shown in Figure 4, and the repeated parts will not be repeated. As an example, the SBP process can be the interaction process of the SBP request frame and the SBP response frame as shown in Figure 4, or the SBP process can include not only the interaction process of the SBP request frame and the SBP response frame, but also the interaction process of the perception measurement request frame and the perception measurement response frame. Optionally, the SBP process can also include a perception measurement interaction process or a termination process, etc. Whether the perception measurement session phase and the perception measurement interaction phase belong to the SBP process is not limited in the embodiment of the present application. For example, when the SBP process includes the perception measurement session phase or the perception measurement interaction phase, the relevant description of the perception measurement session can refer to the description of Figure 6a, and the relevant description of the perception measurement interaction phase can refer to the description of Figure 7a or Figure 8a, etc., and will not be repeated here.

[0260] Generally speaking, an SBP request frame may include an SBP parameters element (SBP parameters element), which can be used by the SBP initiator to provide the SBP responder (AP) with recommended parameters for establishing a corresponding perception measurement session. For example, the SBP parameters element may include a perception responder role bitmap (sensingresponderrolebitmap). For example, the perception responder role bitmap can be used to assign the role of the perception responder. Alternatively, the perception responder role bitmap can be the perception responder role recommended (or requested or indicated) by the SBP initiator (STA1 as shown in FIG. 4 ) to the SBP responder (AP as shown in FIG. 4 , which is also the perception initiator). For example, the role of the perception responder can be a perception transmitter and / or a perception receiver.

[0261] Table 5 exemplarily shows the relationship between the values ​​and meanings of the perception response end role bit map.

[0262] Table 5

[0263] However, in an embodiment of the present application, spontaneous self-receiving perception can be introduced in the SBP process. Exemplarily, the perception response end role bitmap in the SBP parameter element included in the SBP request frame can occupy 3 bits. For example, the perception response end role bitmap can add a spontaneous self-receiving perception bit, which can be used to indicate whether the perception response end can perform spontaneous self-receiving perception, or the bit can be used to indicate whether the role of spontaneous self-receiving perception is assigned to the perception response end. For the description of the spontaneous self-receiving perception bit, please refer to the description of the spontaneous self-receiving indication information above, which will not be described in detail here. The way the bitmap shows in the embodiment of the present application indicates the role of the perception response end is only an example. In a specific implementation, it can also be indicated by an index, etc., which will not be listed here one by one.

[0264] As an example, the value of the self-transmitting and self-receiving perception bit is independent of the values ​​of the two bits shown in Table 5.

[0265] Taking the following content as an example, the perception responder role bitmap occupies 3 bits. The first bit (e.g., B0) is used to indicate whether the perception responder is a perception transmitter, the second bit (e.g., B1) is used to indicate whether the perception responder is a perception receiver, and the third bit (B3) is used to indicate whether the perception responder can perform self-transmitting and self-receiving perception. For the relationship between the bit values ​​and their meanings, please refer to Table 1.

[0266] As another example, the value of the self-transmitting and self-receiving perception bit is related to the value of the first bit in Table 5. For the relationship between the bit value and meaning, please refer to Table 2.

[0267] As another example, the value of the self-transmitting and self-receiving perception bit is related to the value of the second bit in Table 5. For the relationship between the bit value and meaning, please refer to Table 3.

[0268] In the embodiment of the present application, by adding a self-transmitting and self-receiving perception bit in the SBP request frame, the SBP initiator can suggest the role of the perception responder to the SBP responder.

[0269] As shown above, when a certain perception device performs self-transmitting and self-receiving perception, the perception device at the opposite end may not receive the perception PPDU sent by the perception device. The detection indication information shown above is shown as an example in the perception NDPA frame carried before the perception PPDU. The following also provides a perception communication method, which can carry NDP indication information in the perception PPDU, and the NDP indication information can be used to indicate whether the perception PPDU is an NDP for self-transmitting and self-receiving perception.

[0270] Exemplarily, the NDP indication information may occupy 1 bit, such as the NDP indication information may be carried in a monostatic field. For example, a value of 1 in the field indicates that the perception PPDU is a monostatically perceived NDP, and a value of 0 in the field indicates that the perception PPDU is not a monostatically perceived NDP. Thus, after receiving the monostatically perceived field, the peer perception device may know whether to continue receiving (or parsing) subsequent fields in the perception PPDU. For example, if the value of the monostatically perceived field is 0, the peer perception device may continue to receive (or parse) subsequent fields of the monostatically perceived field. If the value of the monostatically perceived field is 1, the peer perception device may not continue to receive (or parse) subsequent fields of the monostatically perceived field. This may save resources, save power consumption, and achieve energy saving.

[0271] For example, the NDP indication information may be carried in the self-transmitting and self-receiving field in the SIG field in the perception PPDU. For the format of the perception PPDU, please refer to Figures 1b to 1e, which will not be described in detail here.

[0272] Taking Figure 1b as an example, the NDP indication information can be carried in at least one of the following items in the perception PPDU: L-SIG, RL-SIG, HE-SIG-A. For example, reserved bits in the above fields can be used to indicate whether the perception PPDU is used for autonomous transmission and reception. Alternatively, certain bits can be multiplexed for indication, which are not listed here.

[0273] Taking Figure 1c as an example, the NDP indication information can be carried in at least one of the following items in the perception PPDU: L-SIG, RL-SIG, HE-SIG-A. For example, it can be indicated by reserved bits in the above fields, or certain bits can be multiplexed for indication.

[0274] Taking Figure 1d as an example, the NDP indication information can be carried in at least one of the following items in the perception PPDU: L-SIG, RL-SIG, U-SIG, EHT-SIG. For example, reserved bits in these fields can be used for indication, or certain bits can be multiplexed for indication.

[0275] Taking Figure 1e as an example, the NDP indication information can be carried in at least one of the following items in the perception PPDU: L-SIG, RL-SIG, U-SIG, EHT-SIG. For example, reserved bits in these fields can be used for indication, or certain bits can be multiplexed for indication.

[0276] It should be noted that the method for using the above-mentioned NDP indication information can be extended to any PPDU. If the perception PPDU used by the perception device for self-transmission and self-reception perception is not the NDP listed above, the above-mentioned method can also be applied to other related self-transmission and self-reception perception PPDUs. For example, in addition to carrying the NDP indication information in the above-mentioned fields in the PPDU PHY header, you can also choose to carry the NDP indication information in other fields in the PHY header of the perception PPDU, or in the medium access control (MAC) header. Therefore, after receiving the NDP indication information, the perception device can know that the PPDU is a self-transmission and self-reception PPDU, and there is no need to continue receiving and decoding, thereby achieving energy saving.

[0277] The various embodiments, implementations, and examples shown above may be separate embodiments or may be combined with each other. The various stages shown above may be combined into a perception process or an SBP process, or the various stages or measurement interactions shown above may be separate embodiments, which are not limited in this application.

[0278] The following describes a communication device according to an embodiment of the present application.

[0279] The present application divides the functional modules of the communication device according to the above-mentioned method embodiment. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing module. The above-mentioned integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in this application is schematic and is only a logical functional division. There may be other division methods in actual implementation. The communication device of the embodiment of the present application will be described in detail below with reference to Figures 12 to 14.

[0280] The communication device shown in the embodiment of the present application can also be called a perception device or a device, etc.

[0281] Figure 12 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application. As shown in Figure 12, the communication device includes a processing module 1201 and a transceiver module 1202. The transceiver module 1202 can implement corresponding communication functions, and the processing module 1201 is used to implement corresponding processing functions. For example, the transceiver module 1202 can also be referred to as an interface, a communication interface, or a communication module.

[0282] In some embodiments of the present application, the communication device can be used to perform the actions performed by the perception initiator in the above method embodiments. In this case, the perception initiator can be the perception device itself, or a chip or functional module configurable in the device. The transceiver module 1202 is used to perform the transceiver-related operations of the perception initiator in the above method embodiments, and the processing module 1201 is used to perform the processing-related operations of the perception initiator in the above method embodiments.

[0283] Exemplarily, the processing module 1201 may be configured to send or output a sensing measurement request frame and receive or input a sensing measurement response frame via the transceiver module 1202. The processing module 1201 may also generate a sensing measurement request frame and parse a sensing measurement response frame.

[0284] Exemplarily, the processing module 1201 may further send or output a sensing detection trigger frame through the transceiver module 1202. Exemplarily, the processing module 1201 may further be configured to generate a sensing detection trigger frame or a sensing NDPA frame.

[0285] Exemplarily, the processing module 1201 may also send or output the NDPA-aware frame through the transceiver module 1202 .

[0286] Exemplarily, the processing module 1201 may further send (or output) the first capability indication information, or receive (or input) the second capability indication information, through the transceiver module 1202 .

[0287] Illustratively, the transceiver module 1202 may also receive or input an SBP request frame.

[0288] Illustratively, the transceiver module 1202 may include a radio frequency module, an antenna module, etc. Illustratively, the transceiver module 1202 may include a pin module, etc.

[0289] Using Figure 12, in other embodiments of the present application, the communication device can be used to perform the actions performed by the sensing response end in the above method embodiments. In this case, the communication device can be the sensing device itself or a chip or functional module configurable in the device. The transceiver module 1202 is used to perform the transceiver-related operations of the sensing response end in the above method embodiments, and the processing module 1201 is used to perform the processing-related operations of the sensing response end in the above method embodiments.

[0290] For example, the transceiver module 1202 may be configured to receive or input a sensing measurement request frame and to send or output a sensing measurement response frame, while the processing module 1201 may be configured to parse the sensing measurement request frame and generate a sensing measurement response frame.

[0291] Exemplarily, the transceiver module 1202 may also be configured to receive or input an NDPA awareness frame or a detection triggering frame, etc. The processing module 1201 may parse the NDPA awareness frame or the detection triggering frame, etc.

[0292] Exemplarily, the transceiver module 1202 may also be configured to receive or input first capability indication information, and send or output second capability indication information.

[0293] Illustratively, the transceiver module 1202 may also be configured to send or output an SBP request frame.

[0294] Illustratively, the transceiver module 1202 may include a radio frequency module, an antenna module, etc. Illustratively, the transceiver module 1202 may include a pin module, etc.

[0295] Optionally, in each of the above embodiments, the communication device may further include a storage module, which may be used to store instructions and / or data, and the processing module 1201 may read the instructions and / or data in the storage module so that the communication device implements the above method embodiment.

[0296] In the above embodiments, the specific descriptions of terms or steps such as the perception measurement request frame, the perception measurement response end, the perception NDPA frame, the perception detection trigger frame, the SBP request frame, the first capability indication information, the second capability indication information, the first NDP, the second NDP, and the third NDP can be referred to the introduction in the above method embodiments, and will not be described in detail here.

[0297] The specific descriptions of the transceiver module and the processing module shown in the above embodiments are only examples. For the specific functions or execution steps of the transceiver module and the processing module, please refer to the above method embodiments and will not be described in detail here.

[0298] The above describes the communication device according to the embodiment of the present application. The following describes possible product forms of the communication device. Any product having the functions of the communication device described in FIG. 12 above falls within the scope of protection of the embodiment of the present application. The following description is for illustrative purposes only and does not limit the product forms of the communication device according to the embodiment of the present application to these examples.

[0299] In one possible implementation, in the communication device shown in Figure 12, the processing module 1201 can be one or more processors, the transceiver module 1202 can be a transceiver, or the transceiver module 1202 can also be a sending module and a receiving module, the sending module can be a transmitter, and the receiving module can be a receiver, and the sending module and the receiving module are integrated into a device, such as a transceiver. In the embodiment of the present application, the processor and the transceiver can be coupled, etc., and the embodiment of the present application does not limit the connection method between the processor and the transceiver. During the execution of the above method, the process of sending information in the above method can be the process of the processor outputting the above information. When outputting the above information, the processor outputs the above information to the transceiver so that the transceiver can transmit it. After being output by the processor, the above information may also need to undergo other processing before reaching the transceiver. Similarly, the process of receiving information in the above method can be the process of the processor receiving the input information. When the processor receives the input information, the transceiver receives the above information and inputs it into the processor. Furthermore, after the transceiver receives the above information, the above information may need to be processed further before being input into the processor.

[0300] FIG13 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application. As shown in FIG13 , the communication device 130 includes one or more processors 1320 and a transceiver 1310 .

[0301] In some embodiments of the present application, the communication device may be used to execute the steps, methods, or functions performed by the aforementioned sensing initiator. For example, the processor 1320 may be used to execute the functions or steps implemented by the processing module 1201 shown in FIG12 , and the transceiver 1310 may be used to execute the functions or steps implemented by the transceiver module 1202 shown in FIG12 . For a detailed description of the processor 1320 and the transceiver 1310, reference may be made to FIG12 or the method embodiment shown above and will not be described in detail here.

[0302] In other embodiments of the present application, the communication device is used to execute the steps, methods, or functions performed by the above-mentioned perception response terminal. For example, the processor 1320 can be used to execute the functions or steps implemented by the processing module 1201 shown in Figure 12, and the transceiver 1310 can be used to execute the functions or steps implemented by the transceiver module 1202 shown in Figure 12. For detailed descriptions of the processor 1320 and the transceiver 1310, please refer to Figure 12 or the method embodiment shown above and will not be described in detail here.

[0303] In various implementations of the communication device shown in FIG13 , the transceiver may include a receiver and a transmitter, wherein the receiver is configured to perform a receiving function (or operation) and the transmitter is configured to perform a transmitting function (or operation). The transceiver is configured to communicate with other devices / devices via a transmission medium.

[0304] Optionally, the communication device 130 may further include one or more memories 1330 for storing program instructions and / or data. The memory 1330 is coupled to the processor 1320. The coupling in the embodiment of the present application is an indirect coupling or communication connection between the communication devices, units or modules, which may be electrical, mechanical or other forms, and is used for information exchange between the communication devices, units or modules. The processor 1320 may operate in conjunction with the memory 1330. The processor 1320 may execute program instructions stored in the memory 1330. Optionally, at least one of the above-mentioned one or more memories may be included in the processor.

[0305] The specific connection medium between the transceiver 1310, processor 1320, and memory 1330 is not limited in the embodiments of the present application. In Figure 13, the memory 1330, processor 1320, and transceiver 1310 are connected via a bus 1340. The bus is represented by a bold line in Figure 13. The connection methods between other components are merely schematic and are not limiting. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, Figure 13 only uses a single bold line, but this does not mean that there is only one bus or only one type of bus.

[0306] In the embodiments of the present application, the processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, etc., and may implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of the present application may be directly implemented as being executed by a hardware processor, or may be executed by a combination of hardware and software modules in the processor, etc.

[0307] In the embodiment of the present application, memory may include but is not limited to non-volatile memories such as hard disk drive (HDD) or solid-state drive (SSD), random access memory (RAM), erasable programmable read-only memory (EPROM), read-only memory (ROM) or portable read-only memory (CD-ROM), etc. Memory is any storage medium that can be used to carry or store program code in the form of instructions or data structures, and can be read and / or written by a computer (such as the communication device shown in the present application), but is not limited thereto. The memory in the embodiment of the present application can also be a circuit or other arbitrarily capable of realizing a storage function, for storing program instructions and / or data.

[0308] The processor 1320 is primarily used to process communication protocols and communication data, control the entire communication device, execute software programs, and process software program data. The memory 1330 is primarily used to store software programs and data. The transceiver 1310 may include a control circuit and an antenna. The control circuit is primarily used to convert baseband signals into radio frequency signals and process radio frequency signals. The antenna is primarily used to transmit and receive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as a touch screen, display, and keyboard, are primarily used to receive user input and output data to the user.

[0309] When the communication device is powered on, the processor 1320 can read the software program in the memory 1330, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be sent wirelessly, the processor 1320 performs baseband processing on the data to be sent and outputs the baseband signal to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signal and then transmits the radio frequency signal to the outside in the form of electromagnetic waves through the antenna. When data is sent to the communication device, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor 1320. The processor 1320 converts the baseband signal into data and processes the data.

[0310] In another implementation, the RF circuit and antenna may be provided independently of the processor performing baseband processing. For example, in a distributed scenario, the RF circuit and antenna may be remotely arranged independent of the communication device.

[0311] The communication device shown in the embodiment of the present application may also have more components than those in Figure 13, and the embodiment of the present application is not limited to this. The method performed by the processor and transceiver shown above is only an example. For the specific steps performed by the processor and transceiver, please refer to the method described above.

[0312] In another possible implementation, in the communication device shown in FIG12 , the processing module 1201 may be one or more logic circuits, and the transceiver module 1202 may be an input / output interface, also referred to as a communication interface, an interface circuit, an interface, etc. Alternatively, the transceiver module 1202 may be a sending module and a receiving module, the sending module may be an output interface, the receiving module may be an input interface, and the sending module and the receiving module may be integrated into one module, such as an input / output interface.

[0313] Figure 14 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application. As shown in Figure 14, the communication device shown in Figure 14 includes a logic circuit 1401 and an interface 1402. That is, the above-mentioned processing module 1201 can be implemented with a logic circuit 1401, and the transceiver module 1202 can be implemented with an interface 1402. Among them, the logic circuit 1401 can be a chip, a processing circuit, an integrated circuit or a system on chip (SoC) chip, etc., and the interface 1402 can be a communication interface, an input and output interface, a pin, etc. For example, Figure 14 is an example of a chip using the above-mentioned communication device as an example, and the chip includes a logic circuit 1401 and an interface 1402.

[0314] In the embodiment of the present application, the logic circuit and the interface may also be coupled to each other. The embodiment of the present application does not limit the specific connection method of the logic circuit and the interface. For example, the logic circuit 1401 can be used to perform the functions or steps implemented by the processing module 1201 shown in Figure 12, and the interface 1402 can be used to perform the functions or steps implemented by the transceiver module 1202 shown in Figure 12. For a specific description of the logic circuit 1401 and the interface 1402, please refer to Figure 12 or the method embodiment shown above, and will not be described in detail here.

[0315] The communication device shown in the embodiment of the present application can implement the method provided in the embodiment of the present application in the form of hardware, or can implement the method provided in the embodiment of the present application in the form of software, etc., and the embodiment of the present application is not limited to this.

[0316] An embodiment of the present application further provides a communication system, which includes a perception initiator and a perception responder. The perception initiator and the perception responder can be used to execute the method in any of the aforementioned embodiments.

[0317] In addition, the present application also provides a computer program, which is used to implement the operations and / or processing performed by each communication device in the method provided by the present application.

[0318] The present application also provides a computer-readable storage medium having computer code stored therein. When the computer code is run on a computer, the computer executes the operations and / or processing performed by each communication device in the method provided by the present application.

[0319] The present application also provides a computer program product, which includes computer code or computer program. When the computer code or computer program is run on a computer, the operations and / or processes performed by the method provided in the present application are executed.

[0320] In the several embodiments provided in this application, it should be understood that the disclosed systems, communication devices, and methods can be implemented in other ways. For example, the communication device embodiments described above are only schematic. For example, the division of the modules is only a logical function division. In actual implementation, there may be other division methods, such as multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, communication devices or modules, or can be electrical, mechanical or other forms of connection.

[0321] The modules described as separate components may or may not be physically separate, and the components shown as modules may or may not be physical modules, that is, they may be located in one place or distributed across multiple network modules. Some or all of the modules may be selected according to actual needs to achieve the technical effects of the solutions provided in the embodiments of the present application.

[0322] In addition, the functional modules in the various embodiments of the present application may be integrated into a processing module, or each module may exist physically separately, or two or more modules may be integrated into a single module. The above-mentioned integrated modules may be implemented in the form of hardware or software functional modules.

[0323] If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a readable storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned readable storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0324] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A perception communication method, characterized in that, The method is applied to a sensing initiating end, and the method includes: Sending a sensing measurement request frame, where the sensing measurement request frame includes a sensing measurement parameter element, and the sensing measurement parameter element includes a self-transmission and self-reception indication information, a sensing sending end indication information, and a sensing receiving end indication information. The self-transmission and self-reception indication information is used to indicate whether the sensing response end performs self-transmission and self-reception sensing. The sensing sending end indication information is used to indicate whether the sensing response end is a sensing sending end. The sensing receiving end indication information is used to indicate whether the sensing response end is a sensing receiving end; Receiving a sensing measurement response frame of the sensing measurement request frame.

2. The method according to claim 1, wherein When the sensing sending end indication information indicates that the sensing response end is a sensing sending end, when the value of the self-transmission and self-reception indication information is a first value, it indicates that the sensing response end performs self-transmission and self-reception sensing, and when the value of the self-transmission and self-reception indication information is a second value, it indicates that the sensing response end does not perform self-transmission and self-reception sensing; or, When the sensing receiving end indication information indicates that the sensing response end is a sensing receiving end, when the value of the self-transmission and self-reception indication information is a first value, it indicates that the sensing response end performs self-transmission and self-reception sensing, and when the value of the self-transmission and self-reception indication information is a second value, it indicates that the sensing response end does not perform self-transmission and self-reception sensing.

3. The method according to claim 1 or 2, characterized in that, After sending the sensing measurement request frame, the method further includes: Sending a sensing null data packet announcement NDPA frame, where the sensing NDPA frame includes a detection indication information. The detection indication information is used to indicate whether the sensing response end needs to receive a sensing physical layer convergence protocol data unit PPDU, or the detection indication information is used to indicate whether the sensing response end needs to estimate channel state information CSI, or the detection indication information is used to indicate whether the sensing response end needs to report channel state information CSI.

4. The method according to claim 3, wherein The sensing NDPA frame further includes the self-transmission and self-reception indication information.

5. The method according to any one of claims 1-4, characterized in that, After sending the sensing measurement request frame, the method further includes: Sending a sensing detection trigger frame, where the sensing detection trigger frame includes the self-transmission and self-reception indication information.

6. The method according to claim 5, wherein The user information field in the sensing detection trigger frame includes the self-transmission and self-reception indication information; or, The common information field in the sensing detection trigger frame includes the self-transmission and self-reception indication information, and the common information field further includes a measurement session identifier ID. The measurement session ID is used to indicate the sensing measurement session corresponding to the self-transmission and self-reception sensing performed by the sensing response end; or, The transmitting end user information field or the receiving end user information field in the sensing detection trigger frame includes the self-transmission and self-reception indication information.

7. The method according to any one of claims 1-4, characterized in that, After sending the sensing measurement request frame, the method further includes: Sending a sensing detection trigger frame, where the sensing detection trigger frame is used to schedule multiple sensing response ends participating in the sensing measurement interaction to all perform self-transmission and self-reception sensing.

8. The method according to claim 7, characterized in that The sensing detection trigger frame includes a sensing trigger subtype field, and the value of the sensing trigger subtype field is 5.

9. The method according to any one of claims 1 - 8, characterized in that, Before sending the sensing measurement request frame, the method further includes: Send first capability indication information, where the first capability indication information is used to indicate whether the sensing initiator supports self - transmitting and self - receiving sensing; Receive second capability indication information, where the second capability indication information is used to indicate whether the sensing responder supports self - transmitting and self - receiving sensing.

10. The method according to any one of claims 1-9, characterized in that, The sensing initiator includes an access point AP. Before sending the sensing measurement request frame, the method further includes: Receive a sensing proxy SBP request frame, where the SBP request frame includes the self - transmitting and self - receiving indication information.

11. The method according to claim 10, wherein The SBP request frame includes an SBP parameter element, and the SBP parameter element includes a sensing responder role bitmap. The first bit in the sensing responder bitmap is used to indicate whether the sensing responder is a sensing transmitter, the second bit in the sensing responder role bitmap is used to indicate whether the sensing responder is a sensing receiver, and the third bit in the sensing role bitmap is used to indicate whether the sensing responder performs self - transmitting and self - receiving sensing.

12. The method according to any one of claims 1-11, characterized in that, The method further includes: Send a first NDP, where the signaling SIG field of the first NDP includes NDP indication information, and the NDP indication information is used to indicate whether the first NDP is an NDP for self - transmitting and self - receiving sensing; or, Receive a second NDP, where the signaling SIG field of the second NDP includes NDP indication information, and the NDP indication information is used to indicate whether the second NDP is an NDP for self - transmitting and self - receiving sensing.

13. A perception communication method, characterized in that, The method is applied to a sensing responder, and the method includes: Receive a sensing measurement request frame, where the sensing measurement request frame includes a sensing measurement parameter element, and the sensing measurement parameter element includes self - transmitting and self - receiving indication information, sensing transmitter indication information, and sensing receiver indication information. The self - transmitting and self - receiving indication information is used to indicate whether the sensing responder performs self - transmitting and self - receiving sensing, the sensing transmitter indication information is used to indicate whether the sensing responder is a sensing transmitter, and the sensing receiver indication information is used to indicate whether the sensing responder is a sensing receiver; Send a sensing measurement response frame to the sensing measurement request frame.

14. The method according to claim 13, characterized in that When the sensing transmitter indication information indicates that the sensing responder is a sensing transmitter, a value of the self - transmitting and self - receiving indication information being a first value indicates that the sensing responder performs self - transmitting and self - receiving sensing, and a value of the self - transmitting and self - receiving indication information being a second value indicates that the sensing responder does not perform self - transmitting and self - receiving sensing; or, When the sensing receiver indication information indicates that the sensing responder is a sensing receiver, a value of the self - transmitting and self - receiving indication information being a first value indicates that the sensing responder performs self - transmitting and self - receiving sensing, and a value of the self - transmitting and self - receiving indication information being a second value indicates that the sensing responder does not perform self - transmitting and self - receiving sensing.

15. The method according to claim 13 or 14, characterized in that The sensing responder performing self - transmitting and self - receiving sensing includes: The sensing responder sends a sensing physical layer convergence protocol data unit PPDU and receives a reflected signal of the sensing PPDU; Estimate channel state information CSI based on the reflected signal.

16. The method according to any one of claims 13 to 15, characterized in that, After receiving the sensing measurement request frame, the method further includes: Receive a sensing null data packet announcement NDPA frame, where the sensing NDPA frame includes detection indication information, and the detection indication information is used to indicate whether the sensing responder needs to receive a sensing physical layer convergence protocol data unit PPDU, or the detection indication information is used to indicate whether the sensing responder needs to estimate channel state information CSI, or the detection indication information is used to indicate whether the sensing responder needs to report channel state information CSI.

17. The method according to claim 16, wherein The sensing NDPA frame further includes the self-transmit-and-self-receive indication information.

18. The method according to any one of claims 13-17, characterized in that, After receiving the sensing measurement request frame, the method further includes: Receiving a sensing detection trigger frame, where the sensing detection trigger frame includes the self-transmit-and-self-receive indication information.

19. The method according to claim 18, wherein The user information field in the sensing detection trigger frame includes the self-transmit-and-self-receive indication information; or, The common information field in the sensing detection trigger frame includes the self-transmit-and-self-receive indication information, and the common information field further includes a measurement session identifier ID, and the measurement session ID is used to indicate the sensing measurement session corresponding to the self-transmit-and-self-receive sensing performed by the sensing responder; or, The transmitting-end user information field or the receiving-end user information field in the sensing detection trigger frame includes the self-transmit-and-self-receive indication information.

20. The method according to any one of claims 13-17, characterized in that, After receiving the sensing measurement request frame, the method further includes: Receiving a sensing detection trigger frame, where the sensing detection trigger frame is used to schedule multiple sensing responders participating in the sensing measurement interaction to all perform self-transmit-and-self-receive sensing.

21. The method according to claim 20, wherein, The sensing detection trigger frame includes a sensing trigger subtype field, and the value of the sensing trigger subtype field is 5.

22. The method according to any one of claims 13-21, characterized in that, Before receiving the sensing measurement request frame, the method further includes: Receiving first capability indication information, where the first capability indication information is used to indicate whether the sensing initiator supports self-transmit-and-self-receive sensing; Sending second capability indication information, where the second capability indication information is used to indicate whether the sensing responder supports self-transmit-and-self-receive sensing.

23. The method according to any one of claims 13-22, characterized in that, The sensing responder includes a station STA. Before receiving the sensing measurement request frame, the method further includes: Sending a sensing proxy SBP request frame, where the SBP request frame includes the self-transmit-and-self-receive indication information.

24. The method according to claim 23, wherein The SBP request frame includes an SBP parameter element, and the SBP parameter element includes a sensing responder role bitmap. The first bit in the sensing responder bitmap is used to indicate whether the sensing responder is a sensing transmitter, the second bit in the sensing responder role bitmap is used to indicate whether the sensing responder is a sensing receiver, and the third bit in the sensing role bitmap is used to indicate whether the sensing responder performs self-transmit-and-self-receive sensing.

25. The method according to any one of claims 13-24, characterized in that The method further includes: Receiving a first NDP, where the signaling SIG field of the first NDP includes NDP indication information, and the NDP indication information is used to indicate whether the first NDP is an NDP for self-transmit-and-self-receive sensing; or, Sending a second NDP, where the signaling SIG field of the second NDP includes NDP indication information, and the NDP indication information is used to indicate whether the second NDP is an NDP for self-transmit-and-self-receive sensing.

26. A communication device, characterized in that, Comprises a module for performing the method according to any one of claims 1-25.

27. A communication device, characterized in that, Comprises a processor for performing the method according to any one of claims 1-25.

28. A communication device, characterized in that, Comprises a logic circuit and an interface, the logic circuit and the interface being coupled; The interface is for inputting and / or outputting information, and the logic circuit is for performing the method according to any one of claims 1-25.

29. A computer-readable storage medium, characterized in that, The computer-readable storage medium is for storing a computer program, and when the computer program is executed, the method according to any one of claims 1-25 is executed.

30. A computer program product, characterized in that, When the computer program product is executed, the method according to any one of claims 1-25 is executed.

31. A communication system, characterized in that, Comprises a sensing initiator and a sensing responder, the sensing initiator being for performing the method according to any one of claims 1-12, and the sensing responder being for performing the method according to any one of claims 13-25.

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