Information display method in WLAN sensing and related device

Abstract

The present application is applied to a sensing system, for example, an 802.11bf protocol or a next-generation sensing protocol of the 802.11bf protocol, and relates to the field of wireless communications, and in particular to an information display method and related apparatus in WLAN sensing. The method includes: a STA transmits an SBP request frame to request an AP to act on behalf of the STA to perform sensing measurements, where the SBP request frame carries display information indicating whether a sensing responder designated by the STA participates in TF sounding, NDPA sounding, or SR2SR sounding, and the AP replies with an SBP response frame to reject or accept the STA's request. According to the present application, the SBP initiator can have a function of setting measurement parameters for the sensing responder. The present application may further be applied to UWB-based WPAN systems, etc., including 802.15 series protocols, and may further be applied to 802.11 series protocols, for example, 802.11be or next-generation WLAN systems of 802.11be, such as Wi-Fi 8.

Description

[Technical Field]

[0001] This application claims priority to Chinese Patent Application No. 202211557914.9, filed with the State Intellectual Property Office of China on December 6, 2022, entitled "Method for displaying information in WLAN sensing and related device," which is incorporated herein by reference in its entirety.

[0002] The present application relates to the field of wireless communication technology, and in particular to an information display method and related device in WLAN sensing. [Background technology]

[0003] Due to the widespread deployment of wireless fidelity (Wi-Fi) devices and the increasing demand for sensing, using widely available Wi-Fi devices for sensing has become an active research field. In daily life, signals transmitted by Wi-Fi devices are usually received only after being reflected, diffracted, and scattered by various obstacles. Due to this phenomenon, the actually received signal is usually a superposition of multiple signals. Therefore, wireless signals may sense the physical environment through which they pass, and the surrounding environment may be estimated by analyzing the wireless signals "modulated" by various obstacles. Therefore, wireless local area network (WLAN) sensing technology (sometimes referred to as WLAN sensing technology for short) is derived. WLAN sensing is a technology with broad application prospects. In WLAN sensing technology, widely deployed Wi-Fi devices may transmit specific data or specific communication channel sounding frames to sense the surrounding environment, then receive signal echoes or feedback information generated by peer devices in the wireless network, and then extract corresponding parameters in the received signals based on specific algorithms for analysis to obtain information about the surrounding environment.

[0004] The 802.11bf standard is a standard formulated by the Institute of Electrical and Electronics Engineers (IEEE) for WLAN sensing, and specifies sensing protocols for the sub-7 GHz and 60 GHz frequency bands. The 802.11bf protocol introduces a special sensing scenario, namely, sensing by proxy (SBP). SBP means that a non-access point station (non-AP STA) may request an access point (AP) to act as a proxy for the non-access point station to perform WLAN sensing, and allows the AP to feed back sensing measurement results to the non-access point station.

[0005] Currently, with the development of WLAN sensing technology, the sensing performance of SBP can be further improved. Summary of the Invention [Means for solving the problem]

[0006] The embodiments of the present application provide an information display method and related device in WLAN sensing, so that the SBP initiator can have the function of setting measurement parameters for the sensing responder, thereby helping the SBP initiator to control and manage the SBP sensing procedure and analyze the SBP measurement results.

[0007] The following describes the present application from various aspects. It should be understood that the following implementation forms and beneficial effects of the various aspects may be referenced to each other.

[0008] According to a first aspect, the present application provides an information display method in WLAN sensing. The method is applied to an SBP initiator, which may be a non-AP STA. The method includes: the SBP initiator sends a proxy sensing request frame to request an SBP responder to act as a proxy for the SBP initiator to start a sensing measurement procedure; and the SBP initiator receives a proxy sensing response frame, which is replied by the SBP responder and is used to accept or reject the SBP initiator's request. The proxy sensing request frame includes first indication information, which indicates whether the sensing responder will participate in one or more of the following sensing measurements: trigger frame (TF) sounding (TF sounding), null data packet announcement (NDPA) sounding (NDPA sounding), or sensing responder-to-sensing responder (SR2SR) sounding (SR2SR sounding). Alternatively, the first indication information indicates one or more of the following: sensing responders participating in TF sounding, sensing responders participating in NDPA sounding, or sensing responders participating in SR2SR sounding.

[0009] Optionally, the proxy sensing request frame further includes addresses of the N sensing responders, and the address of one sensing responder is used to identify one sensing responder. The first indication information specifically indicates whether the N sensing responders will participate in one or more of the following sensing measurements: TF sounding, NDPA sounding, or SR2SR sounding. N is an integer greater than or equal to 1.

[0010] In this application, the SBP initiator configures the sensing measurement (i.e., TF sounding, NDPA sounding, or SR2SR sounding) that the sensing responder (specified by the SBP initiator) will participate in during the SBP setup phase. This enables the SBP initiator to have the ability to configure measurement parameters for the sensing responder, which not only helps the SBP initiator control and manage the SBP sensing procedure, but also helps the SBP initiator analyze the sensing measurement report.

[0011] According to a second aspect, the present application provides an information display method in WLAN sensing. The method is applied to an SBP responder, which may be an AP. The method includes: an SBP responder receives a proxy sensing request frame used to request the SBP responder to act as a proxy for an SBP initiator to start a sensing measurement procedure; and the SBP responder transmits a proxy sensing response frame, which is replied to by the SBP responder and used to accept or reject the SBP initiator's request. The proxy sensing request frame includes first indication information, which indicates whether the sensing responder will participate in one or more of the following sensing measurements: TF sounding, NDPA sounding, or SR2SR sounding. Alternatively, the first display information indicates one or more of the following: sensing responders participating in TF sounding, sensing responders participating in NDPA sounding, or sensing responders participating in SR2SR sounding.

[0012] Optionally, the proxy sensing request frame further includes addresses of the N sensing responders, and the address of one sensing responder is used to identify one sensing responder. The first indication information specifically indicates whether the N sensing responders will participate in one or more of the following sensing measurements: TF sounding, NDPA sounding, or SR2SR sounding. N is an integer greater than or equal to 1.

[0013] In one possible implementation of any one of the above aspects, the first indication information is implemented using a bitmap. The first indication information includes one or more of the following: a first bitmap, a second bitmap, or a third bitmap. Bits in the first bitmap indicate whether the N sensing responders participate in TF sounding, bits in the second bitmap indicate whether the N sensing responders participate in NDPA sounding, and bits in the third bitmap indicate whether the N sensing responders participate in SR2SR sounding. The lengths of the first bitmap, the second bitmap, and the third bitmap are all greater than or equal to N bits.

[0014] Optionally, the first indication information is carried in an SBP parameters element of the proxy sensing request frame.

[0015] Optionally, if third bitmaps are present, the first indication information includes L third bitmaps, where L is an integer greater than or equal to 1. The value of L may be predefined, preconfigured, prenegotiated, or indicated in an SBP parameter element, etc. One third bitmap corresponds to one SR2SR sounding pattern, and the SR2SR sounding pattern may describe a transmitter and a receiver of a sensing physical layer protocol data unit (PPDU) in SR2SR sounding. Alternatively, one SR2SR sounding pattern may describe a group of roles in SR2SR sounding.

[0016] In this application, whether a sensing responder participates in various sensing measurements (e.g., TF / NDPA / SR2SR sounding) is indicated using a bitmap method. This method requires little modification of the SBP parameters element, is simple and clear, has low overhead, is easy to implement, and facilitates compatibility with existing protocols.

[0017] In one possible implementation form of any one of the above aspects, the first indication information includes a fourth bitmap, the length of the fourth bitmap is M*N bits, every M bits in the fourth bitmap correspond to one sensing responder, and the M bits indicate whether the corresponding sensing responder participates in TF sounding, NDPA sounding, or SR2SR sounding. For example, M is equal to 2. This can reduce the number of bits.

[0018] In one possible implementation form of any one of the above aspects, the first indication information is realized using fields corresponding to the sensing responders. The first indication information includes one or more of the following corresponding to the N sensing responders: a first field, a second field, or a third field. For example, one sensing responder corresponds to one or more of the following: a first field, a second field, or a third field. The first field indicates whether the sensing responder corresponding to the first field participates in TF sounding, the second field indicates whether the sensing responder corresponding to the second field participates in NDPA sounding, and the third field indicates whether the sensing responder corresponding to the third field participates in SR2SR sounding.

[0019] Optionally, the length of the third field is L bits or more, where L is an integer greater than or equal to 1. The bits in the third field indicate whether the sensing responder corresponding to the third field participates in SR2SR sounding corresponding to the L SR2SR sounding patterns, respectively. One SR2SR sounding pattern corresponds to one or more SR2SR soundings. The SR2SR sounding pattern describes the transmitter and receiver of the sensing PPDU in the SR2SR sounding. Alternatively, one SR2SR sounding pattern may describe a group of roles in the SR2SR sounding.

[0020] In this application, a field is designed for each sensing responder, and the field indicates one sensing responder and whether the sensing responder participates in various sensing measurements (e.g., TF / NDPA / SR2SR sounding). In this way, the meaning of the field is clear and easy to understand, and the SBP responder can know complete information about the sensing responder during the analysis procedure.

[0021] In one possible implementation form of any one of the above aspects, the first indication information includes fourth fields corresponding to N sensing responders, where one sensing responder corresponds to one fourth field. One fourth field indicates whether the sensing responder corresponding to the fourth field participates in TF sounding, NDPA sounding, or SR2SR sounding. For example, the length of the fourth field is 2 bits. This can reduce the number of bits.

[0022] In one possible implementation form of any one of the above aspects, the proxy sensing request frame further includes second indication information, and the second indication information indicates whether the first indication information exists. In this specification, to indicate that the first indication information exists, the second indication information is set to a preset value (e.g., 1). It may be understood that whether the preset value is 0 or 1 is not limited in the present application.

[0023] Optionally, the second indication information is carried in an SBP parameters control field in the SBP parameters element.

[0024] The information following the SBP parameter control field in the SBP parameter element is determined based on the SBP parameter control field. Therefore, in the present application, the second indication information is carried in the SBP parameter control field to indicate whether the first indication information is present. This design is more flexible and facilitates compatibility with existing protocols or existing devices.

[0025] In one possible implementation form of any one of the above aspects, the proxy sensing request frame further includes one or more of the following: third indication information, fourth indication information, or fifth indication information. For example, one or more of the third indication information, fourth indication information, or fifth indication information are carried in an SBP parameter control field. The third indication information indicates whether the SBP initiator requests to perform SR2SR sounding in the proxy sensing procedure. The fourth indication information indicates the number of SR2SR sounding patterns, i.e., the value of L, where one SR2SR sounding pattern corresponds to one or more SR2SR soundings. The fifth indication information indicates the number of SR2SR soundings corresponding to each SR2SR sounding pattern. If the third indication information indicates that the SBP initiator does not perform SR2SR sounding in the proxy sensing procedure, it may be understood that the fourth indication information and / or the fifth indication information may be set to reserved values / reserved values, or the proxy sensing request frame does not include the fourth indication information and / or the fifth indication information.

[0026] In this application, TF sounding and NDPA sounding are different from SR2SR sounding (please refer to the description in the method embodiment for the specific difference, and the details will not be described in this specification). Therefore, in this application, the proxy sensing request frame carries more information about SR2SR sounding, which helps the SBP initiator to control and manage SR2SR sounding later and analyze the measurement results of SR2SR sounding.

[0027] In one possible implementation form of any one of the above aspects, the proxy sensing request frame further includes role indication information, where the role indication information indicates roles of the N sensing responders in the sensing measurement instance. In this application, a role includes one or more of the following: a sensing transmitter, a sensing receiver, and a sensing transmitter and a sensing receiver. Optionally, one sensing responder plays one role in one sensing measurement instance. In other words, one sensing responder plays the role of either a sensing transmitter, a sensing receiver, or both a sensing transmitter and a sensing receiver in one sensing measurement instance.

[0028] Optionally, the role indication information is carried in an SBP parameter element of the proxy sensing request frame.

[0029] In this application, the SBP initiator sets the role of the sensing responder in the SBP setup phase, which allows the SBP initiator to have the function of setting the role of the sensing responder, which not only helps the SBP initiator control and manage the SBP sensing procedure, but also helps the SBP initiator analyze the sensing measurement report.

[0030] In one possible implementation form of any one of the above aspects, the proxy sensing request frame further includes role presence indication information, where the role presence indication information indicates whether the role indication information is present.

[0031] In one possible implementation form of any one of the above aspects, the proxy sensing request frame further includes mandatory role indication information, and the mandatory role indication information indicates whether the N sensing responders are required to satisfy the indication of the role indication information.

[0032] In one possible implementation form of any one of the above aspects, the proxy sensing request frame further includes sixth indication information, and the sixth indication information indicates whether the N sensing responders need to satisfy the indication of the first indication information.

[0033] Optionally, the sixth indication information and / or the mandatory role indication information is carried in an SBP parameter control field in an SBP parameter element.

[0034] Optionally, if the sixth indication information indicates that N sensing responders designated by the SBP initiator must satisfy the indication of the first indication information, and the SBP responder can satisfy the indication of the first indication information in the SBP request frame, the SBP responder may indicate in the SBP response frame that the SBP request is accepted. If the SBP responder cannot satisfy the indication of the first indication information in the SBP request frame, the SBP responder may indicate in the SBP response frame that the SBP request is rejected, and may carry an SBP parameter element in the SBP response frame to provide recommended measurement parameters.

[0035] In the present application, indication information is carried in the proxy sensing request frame to inform the SBP responder whether the sensing responder designated by the SBP initiator needs to meet the requirements of the SBP initiator, to help the SBP responder determine whether the SBP initiator's request can be accepted.

[0036] In one possible implementation form of any one of the above aspects, the proxy sensing response frame includes one or more of the following: first indication information or role indication information. The meaning of the indication information is the same as or similar to that described above. The details will not be described again in this specification.

[0037] Optionally, when the proxy sensing response frame includes the first indication information, the proxy sensing response frame further includes one or more of the following: second indication information, third indication information, fourth indication information, fifth indication information, or sixth indication information (indicating whether the sensing responder designated by the SBP responder needs to satisfy the indication of the first indication information). The meaning of the indication information is the same as or similar to that described above. The details will not be described again in this specification.

[0038] Optionally, if the proxy sensing response frame includes role indication information, the proxy sensing response frame further includes one or more of the following: role presence indication information or required role indication information (indicating whether the sensing responder designated by the SBP responder must satisfy the role indication information). The meaning of the indication information is the same as or similar to that described above. The details will not be described again in this specification.

[0039] According to a third aspect, an embodiment of the present application provides a communication device configured to perform a method according to the first aspect or any one of the possible implementations of the first aspect, wherein the communication device includes a unit for performing the method according to the first aspect or any one of the possible implementations of the first aspect.

[0040] For example, the communication device may be a non-AP STA or a chip, and the chip may be used in a non-AP STA.

[0041] According to a fourth aspect, an embodiment of the present application provides a communication device configured to perform a method according to the second aspect or any one of the possible implementations of the second aspect, wherein the communication device includes a unit for performing the method according to the second aspect or any one of the possible implementations of the second aspect.

[0042] For example, the communication device may be an AP or a chip, and the chip may be used in an AP.

[0043] In the third or fourth aspect, the communication device may include a transceiver unit and a processing unit. For specific descriptions of the transceiver unit and the processing unit, please refer to the device embodiments provided below. For beneficial effects of the third and fourth aspects, please refer to the relevant descriptions of the first and second aspects. Details will not be described again in this specification.

[0044] According to a fifth aspect, the present application provides an information display method in WLAN sensing. The method is applied to an SBP initiator, which may be a non-AP STA. The method includes: the SBP initiator transmits a proxy sensing request frame to request an SBP responder to act as a proxy for the SBP initiator to initiate a sensing measurement procedure; and the SBP initiator receives a proxy sensing response frame, which is replied by the SBP responder and used to accept or reject the SBP initiator's request. The proxy sensing request frame includes role indication information, which indicates the role of the sensing responder in a sensing measurement instance. The role includes any one of the following: a sensing transmitter, a sensing receiver, and a sensing transmitter and a sensing receiver. Alternatively, the role indication information indicates one or more of the following: in a sensing measurement instance, the sensing responder acts as a sensing transmitter, the sensing responder acts as a sensing receiver, or the sensing responder acts as both a sensing transmitter and a sensing receiver.

[0045] Optionally, the proxy sensing request frame further includes addresses of N sensing responders, and the address of one sensing responder is used to identify one sensing responder. The role indication information specifically indicates roles of the N sensing responders in the sensing measurement instance, where N is an integer equal to or greater than 1.

[0046] In this application, the SBP initiator sets the role of the sensing responder in the SBP setup phase, which allows the SBP initiator to have the function of setting the role of the sensing responder, which not only helps the SBP initiator control and manage the SBP sensing procedure, but also helps the SBP initiator analyze the sensing measurement report.

[0047] According to a sixth aspect, the present application provides an information display method in WLAN sensing. The method is applied to an SBP responder, which may be an AP. The method includes: an SBP responder receives a proxy sensing request frame used to request the SBP responder to act as a proxy for an SBP initiator to start a sensing measurement procedure; and the SBP responder transmits a proxy sensing response frame, which is replied to by the SBP responder and used to accept or reject the SBP initiator's request. The proxy sensing request frame includes role indication information, which indicates the role of the sensing responder in a sensing measurement instance. The role includes any one of the following: a sensing transmitter, a sensing receiver, and a sensing transmitter and a sensing receiver. Alternatively, the role indication information indicates one or more of the following: in a sensing measurement instance, the sensing responder acts as a sensing transmitter, the sensing responder acts as a sensing receiver, or the sensing responder acts as both a sensing transmitter and a sensing receiver.

[0048] Optionally, the proxy sensing request frame further includes addresses of N sensing responders, and the address of one sensing responder is used to identify one sensing responder. The role indication information specifically indicates roles of the N sensing responders in the sensing measurement instance, where N is an integer equal to or greater than 1.

[0049] In one possible implementation form of the fifth or sixth aspect, the role indication information is carried in an SBP parameter element of a proxy sensing request frame.

[0050] In one possible implementation form of the fifth or sixth aspect, the proxy sensing request frame further includes role presence indication information, and the role presence indication information indicates whether the role indication information is present. In this specification, the role presence indication information is set to a preset value (e.g., 1) to indicate that the role indication information is present.

[0051] In one possible implementation form of the fifth or sixth aspect, the proxy sensing request frame further includes mandatory role indication information, which indicates whether the N sensing responders are required to satisfy the indication of the role indication information.

[0052] Optionally, the mandatory role indication information is carried in an SBP parameter control field in an SBP parameter element.

[0053] In one possible implementation form of the fifth or sixth aspect, the proxy sensing response frame includes role indication information. Optionally, the proxy sensing response frame further includes one or more of the following: role presence indication information or mandatory role indication information. The meaning of the indication information is the same as or similar to that described above. The details will not be described again in this specification.

[0054] According to a seventh aspect, an embodiment of the present application provides a communication device configured to perform a method according to the fifth aspect or any one of the possible implementations of the fifth aspect, wherein the communication device includes a unit for performing the method according to the fifth aspect or any one of the possible implementations of the fifth aspect.

[0055] For example, the communication device may be a non-AP STA or a chip, and the chip may be used in a non-AP STA.

[0056] According to an eighth aspect, an embodiment of the present application provides a communication device configured to perform a method according to the sixth aspect or any one of the possible implementations of the sixth aspect, wherein the communication device includes a unit for performing the method according to the sixth aspect or any one of the possible implementations of the sixth aspect.

[0057] For example, the communication device may be an AP or a chip, and the chip may be used in an AP.

[0058] In the seventh or eighth aspect, the communication device may include a transceiver unit and a processing unit. For specific descriptions of the transceiver unit and the processing unit, please refer to the device embodiments provided below. For beneficial effects of the seventh and eighth aspects described above, please refer to the related descriptions in the fifth and sixth aspects described above. Details are not provided herein.

[0059] According to a ninth aspect, the present application provides an information display method in WLAN sensing. The method includes: a first communication device generates and transmits a first sensing element; the first sensing element is used by the first communication device to exchange sensing capability information with a second communication device; the first sensing element includes a first field, the length of the first field is greater than 4 bits, and the first field indicates a maximum total number of sensing measurement setups that the first communication device can set up with the second communication device.

[0060] For example, the first field may be a "max number of supported setups" field, located in the sensing field of the sensing element. For ease of distinction below, the first field is represented by the "max number of supported setups" field. In some embodiments, for example, in the following embodiment 4, the two fields may be used interchangeably.

[0061] In this application, since there are 7 reserved bits in the sensing field in the existing sensing element, the length of the max number of supported setups field may be modified by reducing the number of existing reserved bits so that the max number of supported setups field can indicate the total number of measurement setups (MSs) that may be set up (i.e., 0 MSs to 16 MSs).

[0062] Referring to a ninth aspect, in one possible implementation, the method further includes: the first communication device receives a second sensing element transmitted by the second communication device. The second sensing element is used by the second communication device to exchange sensing capability information with the first communication device, and the second sensing element includes a second field, the length of the second field is longer than 4 bits, and the second field indicates a maximum total number of sensing measurement setups that the second communication device can set up with the first communication device. For example, the second field may alternatively be a "max number of supported setups" field and is located in the sensing field of the sensing element. For ease of distinction below, the second field may alternatively be represented by a "max number of supported setups" field. In some embodiments, for example, the following embodiment 4, the two fields may be used interchangeably.

[0063] It can be understood that the frame formats of the first sensing element and the second sensing element may be the same. In other words, the fields included in the first sensing element and the fields included in the second sensing element may be the same, but the specific values ​​of the fields may be different. In other words, the specific values ​​of the max number of supported setups field in the first sensing element and the max number of supported setups field in the second sensing element may be different, and the meanings of the values ​​are the same or similar. For details, please refer to the description in the following embodiments. Due to space limitations, the details will not be described in this specification.

[0064] According to a tenth aspect, the present application provides an information display method in WLAN sensing, the method including: a second communication device receiving a first sensing element transmitted by a first communication device, where the first sensing element is used by the first communication device to exchange sensing capability information with the second communication device; and the second communication device analyzing the first sensing element, where the first sensing element includes a first field, where the length of the first field is longer than 4 bits, and the first field indicates a maximum total number of sensing measurement setups that the first communication device can set up with the second communication device.

[0065] For example, the first field may be a maximum number of supported sensing measurement setups field, located in the sensing field of the sensing element. For ease of distinction below, the first field will be represented below by the maximum number of supported sensing measurement setups field. In some embodiments, for example, in embodiment 4 below, the two fields may be used interchangeably.

[0066] Referring to the tenth aspect, in one possible implementation, the method further includes: the second communication device transmitting a second sensing element to the first communication device. The second sensing element is used by the second communication device to exchange sensing capability information with the first communication device, and the second sensing element includes a second field, the length of the second field is greater than 4 bits, and the second field indicates a maximum total number of sensing measurement setups that the second communication device can set up with the first communication device. For example, the second field may alternatively be a maximum number of supported sensing measurement setups field and is located in the sensing field of the sensing element. For ease of distinction below, the second field may alternatively be represented by a maximum number of supported sensing measurement setups field. In some embodiments, for example, the following embodiment 4, the two fields may be used interchangeably.

[0067] It can be understood that the frame formats of the first sensing element and the second sensing element may be the same. In other words, the fields included in the first sensing element and the fields included in the second sensing element may be the same, but the specific values ​​of the fields may be different. In other words, the specific values ​​of the max number of supported setups field in the first sensing element and the max number of supported setups field in the second sensing element may be different, and the meanings of the values ​​are the same or similar. For details, please refer to the description in the following embodiments. Due to space limitations, the details will not be described in this specification.

[0068] According to an eleventh aspect, an embodiment of the present application provides a communication device configured to perform a method according to the ninth aspect or any one of the possible implementations of the ninth aspect, wherein the communication device includes a unit for performing the method according to the ninth aspect or any one of the possible implementations of the ninth aspect.

[0069] According to a twelfth aspect, an embodiment of the present application provides a communication device configured to perform a method according to the tenth aspect or any one of the possible implementations of the tenth aspect, wherein the communication device includes a unit for performing the method according to the tenth aspect or any one of the possible implementations of the tenth aspect.

[0070] In the eleventh or twelfth aspect, the communication device may include a transceiver unit and a processing unit. For specific descriptions of the transceiver unit and the processing unit, please refer to the device embodiments provided below. For beneficial effects of the eleventh and twelfth aspects described above, please refer to the related descriptions of the ninth and tenth aspects described above. Details are not provided herein.

[0071] According to a thirteenth aspect, the present application provides an information display method in WLAN sensing. The method includes: a first communication device generates and transmits a first sensing element. The first sensing element is used by the first communication device to exchange sensing capability information with a second communication device, and the first sensing element includes a first field and a second field. The first field indicates a maximum total number of trigger-based sensing measurement setups that the first communication device can set up with the second communication device. The second field indicates a maximum total number of non-trigger-based sensing measurement setups that the first communication device can set up with the second communication device.

[0072] For example, the first field and the second field may be located in a sensing field in a sensing element. The first field may also be referred to as a maximum number of supported trigger-based sensing measurement setups field. In some embodiments, for example, in the following embodiment 5, the two fields may be used interchangeably. Similarly, the second field may also be referred to as a maximum number of supported non-trigger-based sensing measurement setups field. In some embodiments, for example, in the following embodiment 5, the two fields may be used interchangeably. Indeed, the first field and the second field may alternatively have other names. This is not limited in the present application. For ease of explanation in the following embodiment 5, the maximum number of supported trigger-based sensing measurement setups field represents the first field, and the maximum number of supported non-trigger-based sensing measurement setups field represents the second field.

[0073] In the present application, two fields are added to the sensing field in the sensing element: one field indicates the maximum total number of TB sensing measurement setups that a device transmitting the sensing element can set up with a device receiving the sensing element, and the other field indicates the maximum total number of non-TB sensing measurement setups that a device transmitting the sensing element can set up with a device receiving the sensing element. In this way, not only can the total number of MSs that can be set up (i.e., 0 MS to 16 MS) be indicated, but also the type of MS can be distinguished.

[0074] Referring to the thirteenth aspect, in one possible implementation, the method further includes: the first communication device receives a second sensing element transmitted by the second communication device; the second sensing element is used by the second communication device to exchange sensing capability information with the first communication device; a third field included in the second sensing element indicates a maximum total number of trigger-based sensing measurement setups that the second communication device can set up with the first communication device; and a fourth field included in the second sensing element indicates a maximum total number of non-trigger-based sensing measurement setups that the second communication device can set up with the first communication device.

[0075] For example, the third field may also be referred to as a "maximum number of supported trigger-based sensing measurement setups" field. In some embodiments, such as the following embodiment 5, the two fields may be used interchangeably. Similarly, the fourth field may also be referred to as a "maximum number of supported non-trigger-based sensing measurement setups" field. In some embodiments, such as the following embodiment 5, the two fields may be used interchangeably. Indeed, the third field and the fourth field may alternatively have other names. This is not limited in the present application. It may be understood that the frame formats of the first sensing element and the second sensing element may be the same. In other words, the fields included in the first sensing element and the fields included in the second sensing element may be the same, but the specific values ​​of the fields may be different.

[0076] According to a fourteenth aspect, the present application provides an information display method in WLAN sensing. The method includes: a second communication device receives a first sensing element transmitted by a first communication device, where the first sensing element is used by the first communication device to exchange sensing capability information with the second communication device; and the second communication device analyzes the first sensing element, where the first sensing element includes a first field and a second field. The first field indicates a maximum total number of trigger-based sensing measurement setups that the first communication device can set up with the second communication device. The second field indicates a maximum total number of non-trigger-based sensing measurement setups that the first communication device can set up with the second communication device.

[0077] For example, the first field and the second field may be located in a sensing field in a sensing element. The first field may also be referred to as a maximum number of supported trigger-based sensing measurement setups field. In some embodiments, for example, in the following embodiment 5, the two fields may be used interchangeably. Similarly, the second field may also be referred to as a maximum number of supported non-trigger-based sensing measurement setups field. In some embodiments, for example, in the following embodiment 5, the two fields may be used interchangeably. Indeed, the first field and the second field may alternatively have other names. This is not limited in the present application. For ease of explanation in the following embodiment 5, the maximum number of supported trigger-based sensing measurement setups field represents the first field, and the maximum number of supported non-trigger-based sensing measurement setups field represents the second field.

[0078] Referring to a fourteenth aspect, in one possible implementation, the method further includes: the second communication device transmitting a second sensing element to the first communication device, where the second sensing element is used by the second communication device to exchange sensing capability information with the first communication device; a third field included in the second sensing element indicating a maximum total number of trigger-based sensing measurement setups that the second communication device can set up with the first communication device; and a fourth field included in the second sensing element indicating a maximum total number of non-trigger-based sensing measurement setups that the second communication device can set up with the first communication device.

[0079] For example, the third field may also be referred to as a "maximum number of supported trigger-based sensing measurement setups" field. In some embodiments, such as the following embodiment 5, the two fields may be used interchangeably. Similarly, the fourth field may also be referred to as a "maximum number of supported non-trigger-based sensing measurement setups" field. In some embodiments, such as the following embodiment 5, the two fields may be used interchangeably. Indeed, the third field and the fourth field may alternatively have other names. This is not limited in the present application. It may be understood that the frame formats of the first sensing element and the second sensing element may be the same. In other words, the fields included in the first sensing element and the fields included in the second sensing element may be the same, but the specific values ​​of the fields may be different.

[0080] According to a fifteenth aspect, an embodiment of the present application provides a communication device configured to perform a method according to the thirteenth aspect or any one of the possible implementations of the thirteenth aspect, wherein the communication device includes a unit for performing the method according to the thirteenth aspect or any one of the possible implementations of the thirteenth aspect.

[0081] According to a sixteenth aspect, an embodiment of the present application provides a communication device configured to perform a method according to the fourteenth aspect or any one of the possible implementations of the fourteenth aspect, wherein the communication device includes a unit for performing the method according to the fourteenth aspect or any one of the possible implementations of the fourteenth aspect.

[0082] In the fifteenth or sixteenth aspect, the communication device may include a transceiver unit and a processing unit. For specific descriptions of the transceiver unit and the processing unit, please refer to the device embodiments provided below. For beneficial effects of the fifteenth and sixteenth aspects described above, please refer to the related descriptions of the thirteenth and fourteenth aspects described above. Details are not provided herein.

[0083] According to a seventeenth aspect, the present application provides an information display method in WLAN sensing. The method is applied to a sensing initiator and includes the following steps: the sensing initiator transmits a sensing measurement setup request frame and receives a sensing measurement setup response frame, where the sensing measurement setup request frame is used to request setting up a sensing measurement setup with a sensing responder, and the sensing measurement setup response frame is used to accept or reject the sensing initiator's request. The sensing measurement setup request frame includes first measurement setup indication information, which indicates whether the sensing initiator can set up another sensing measurement setup. Optionally, the first measurement setup indication information further indicates whether the sensing initiator can act as a sensing responder for setting up another sensing measurement setup.

[0084] In the present application, in order to avoid a case in which one party still sends a sensing measurement setup request frame to another party to request that a new sensing measurement setup be set up when the other party is unable to set up a new sensing measurement setup during the sensing measurement setup phase, whether a new sensing measurement setup can be set up is indicated by using measurement indication information so that the two exchanging parties know their respective capabilities. In this way, the sensing measurement setup efficiency is improved, and it is not necessary to terminate an existing sensing measurement setup to release resources, i.e., it is not necessary to send a sensing measurement setup termination frame, thereby reducing signaling overhead.

[0085] According to an eighteenth aspect, the present application provides an information display method in WLAN sensing. The method is applied to a sensing responder and includes: the sensing responder receives a sensing measurement setup request frame, where the sensing measurement setup request frame is used to request setting up a sensing measurement setup with the sensing responder; and the sensing responder receives and transmits a sensing measurement setup response frame, where the sensing measurement setup response frame is used to accept or reject the sensing initiator's request. The sensing measurement setup request frame includes first measurement setup indication information, which indicates whether the sensing initiator can set up another sensing measurement setup. Optionally, the first measurement setup indication information further indicates whether the sensing initiator can act as a sensing responder for setting up another sensing measurement setup.

[0086] In one possible implementation of the seventeenth or eighteenth aspect, the sensing measurement setup response frame includes second measurement setup indication information, and the second measurement setup indication information indicates whether the sensing responder is capable of setting up another sensing measurement setup. Optionally, the second measurement setup indication information further indicates in detail whether the sensing responder is capable of acting as a sensing responder for setting up another sensing measurement setup.

[0087] According to a 19th aspect, an embodiment of the present application provides a communication device configured to perform a method according to the 17th aspect or any one of the possible implementations of the 17th aspect, wherein the communication device includes a unit for performing the method according to the 17th aspect or any one of the possible implementations of the 17th aspect.

[0088] According to a twentieth aspect, an embodiment of the present application provides a communication device configured to perform the method according to the eighteenth aspect or any one of the possible implementations of the eighteenth aspect. The communication device includes a unit for performing the method according to the eighteenth aspect or any one of the possible implementations of the eighteenth aspect.

[0089] In the 19th or 20th aspect, the communication device may include a transceiver unit and a processing unit. For specific descriptions of the transceiver unit and the processing unit, please refer to the device embodiments provided below. For beneficial effects of the 19th and 20th aspects, please refer to the related descriptions of the 17th and 18th aspects. Details will not be described again in this specification.

[0090] According to a twenty-first aspect, the present application provides a communications device. The communications device includes a processor configured to perform a method according to the first aspect, the fifth aspect, or any one of possible implementations of the first or fifth aspects. Alternatively, the processor is configured to execute a program stored in a memory, and when the program is executed, the method according to the first aspect, the fifth aspect, or any one of possible implementations of the first or fifth aspects is performed.

[0091] In one possible implementation, the memory is located outside the communication device.

[0092] In one possible implementation, the memory is located inside the communication device.

[0093] In the present application, the processor and memory may alternatively be integrated into one component. In other words, the processor and memory may alternatively be integrated together.

[0094] In one possible implementation, the communication device further includes a transceiver configured to receive or transmit frames. For example, the transceiver may be configured to receive a proxy sensing response frame or transmit a proxy sensing request frame.

[0095] In this application, the communication device may be an SBP initiator, a chip in an SBP initiator, and so on.

[0096] According to a twenty-second aspect, the present application provides a communications device. The communications device includes a processor configured to perform a method according to the second aspect, the sixth aspect, or any one of possible implementations of the second or sixth aspects. Alternatively, the processor is configured to execute a program stored in a memory, and when the program is executed, the method according to the second aspect, the sixth aspect, or any one of possible implementations of the second or sixth aspects is performed.

[0097] In one possible implementation, the memory is located outside the communication device.

[0098] In one possible implementation, the memory is located inside the communication device.

[0099] In the present application, the processor and memory may alternatively be integrated into one component. In other words, the processor and memory may alternatively be integrated together.

[0100] In one possible implementation, the communication device further includes a transceiver configured to receive or transmit frames. For example, the transceiver may be configured to transmit a proxy sensing response frame or receive a proxy sensing request frame.

[0101] In this application, the communication device may be an SBP responder, a chip in an SBP responder, or the like.

[0102] According to a twenty-third aspect, the present application provides a communications device, the communications device including a processor configured to perform a method according to the ninth aspect, the thirteenth aspect, or any one of possible implementations of the ninth or thirteenth aspects. Alternatively, the processor is configured to execute a program stored in a memory, and when the program is executed, the method according to the ninth aspect, the thirteenth aspect, or any one of possible implementations of the ninth or thirteenth aspects is performed.

[0103] In one possible implementation, the memory is located outside the communication device.

[0104] In one possible implementation, the memory is located inside the communication device.

[0105] In the present application, the processor and memory may alternatively be integrated into one component. In other words, the processor and memory may alternatively be integrated together.

[0106] In one possible implementation, the communication device further includes a transceiver configured to receive or transmit frames. For example, the transceiver may be configured to transmit the first sensing element. For example, the transceiver may be further configured to receive the second sensing element.

[0107] In this application, the communication device may be a first communication device, a chip in the first communication device, and so on.

[0108] According to a twenty-fourth aspect, the present application provides a communications device, the communications device including a processor configured to perform a method according to the tenth aspect, the fourteenth aspect, or any one of possible implementations of the tenth or fourteenth aspects. Alternatively, the processor is configured to execute a program stored in a memory, and when the program is executed, the method according to the tenth aspect, the fourteenth aspect, or any one of possible implementations of the tenth or fourteenth aspects is performed.

[0109] In one possible implementation, the memory is located outside the communication device.

[0110] In one possible implementation, the memory is located inside the communication device.

[0111] In the present application, the processor and memory may alternatively be integrated into one component. In other words, the processor and memory may alternatively be integrated together.

[0112] In one possible implementation, the communication device further includes a transceiver configured to receive or transmit frames. For example, the transceiver may be configured to receive a first sensing element. For example, the transceiver may be further configured to transmit a second sensing element.

[0113] In this application, the communication device may be a second communication device, a chip in a second communication device, and the like.

[0114] According to a twenty-fifth aspect, the present application provides a communication device. The communication device includes a processor configured to perform a method according to the seventeenth aspect or any one of the possible implementations of the seventeenth aspect. Alternatively, the processor is configured to execute a program stored in a memory, and when the program is executed, the method according to the seventeenth aspect or any one of the possible implementations of the seventeenth aspect is performed.

[0115] In one possible implementation, the memory is located outside the communication device.

[0116] In one possible implementation, the memory is located inside the communication device.

[0117] In the present application, the processor and memory may alternatively be integrated into one component. In other words, the processor and memory may alternatively be integrated together.

[0118] In one possible implementation, the communication device further includes a transceiver configured to receive or transmit a frame. For example, the transceiver may be configured to receive a sensing measurement setup response frame or transmit a sensing measurement setup request frame.

[0119] In this application, the communication device may be a sensing initiator, a chip in the sensing initiator, or the like.

[0120] According to a 26th aspect, the present application provides a communication device. The communication device includes a processor configured to perform a method according to the 18th aspect or any one of the possible implementations of the 18th aspect. Alternatively, the processor is configured to execute a program stored in a memory, and when the program is executed, the method according to the 18th aspect or any one of the possible implementations of the 18th aspect is performed.

[0121] In one possible implementation, the memory is located outside the communication device.

[0122] In one possible implementation, the memory is located inside the communication device.

[0123] In the present application, the processor and memory may alternatively be integrated into one component. In other words, the processor and memory may alternatively be integrated together.

[0124] In one possible implementation, the communication device further includes a transceiver configured to receive or transmit a frame. For example, the transceiver may be configured to transmit a sensing measurement setup response frame or receive a sensing measurement setup request frame.

[0125] In this application, the communication device may be a sensing responder, a chip in a sensing responder, or the like.

[0126] According to a twenty-seventh aspect, the present application provides a communication device, the communication device including a logic circuit and an interface, the logic circuit coupled to the interface, the logic circuit and the interface configured to perform a method according to any one of the first, second, fifth, sixth, ninth, tenth, thirteenth, fourteenth, seventeenth, eighteenth aspects, or possible implementations of any one of the above aspects.

[0127] According to a twenty-eighth aspect, the present application provides a computer-readable storage medium configured to store a computer program, which, when run on a computer, performs a method according to the first aspect, the second aspect, the fifth aspect, the sixth aspect, the ninth aspect, the tenth aspect, the thirteenth aspect, the fourteenth aspect, the seventeenth aspect, the eighteenth aspect, or any one of the possible implementation forms of any one of the above aspects.

[0128] According to a twenty-ninth aspect, an embodiment of the present application provides a computer program product, the computer program product comprising a computer program or computer code which, when run on a computer, performs a method according to the first aspect, the second aspect, the fifth aspect, the sixth aspect, the ninth aspect, the tenth aspect, the thirteenth aspect, the fourteenth aspect, the seventeenth aspect, the eighteenth aspect, or any one of the possible implementation forms of any one of the above aspects.

[0129] According to a thirtieth aspect, the present application provides a computer program which, when run on a computer, performs a method according to the first aspect, the second aspect, the fifth aspect, the sixth aspect, the ninth aspect, the tenth aspect, the thirteenth aspect, the fourteenth aspect, the seventeenth aspect, the eighteenth aspect, or any one of the possible implementation forms of any one of the above aspects.

[0130] According to a thirty-first aspect, the present application provides a wireless communication system. The wireless communication system includes a surrogate sensing initiator and a surrogate sensing responder. The surrogate sensing initiator is configured to perform a method according to the first aspect, the fifth aspect, or any one of possible implementations of the first or fifth aspects, and the surrogate sensing responder is configured to perform a method according to the second aspect, the sixth aspect, or any one of possible implementations of the second or sixth aspects.

[0131] According to a thirty-second aspect, the present application provides a wireless communication system. The wireless communication system includes a first communication device and a second communication device. The first communication device is configured to perform a method according to the ninth aspect, the thirteenth aspect, or any one of possible implementations of the ninth aspect or the thirteenth aspect, and the second communication device is configured to perform a method according to the tenth aspect, the fourteenth aspect, or any one of possible implementations of the tenth aspect or the fourteenth aspect.

[0132] According to a thirty-third aspect, the present application provides a wireless communication system. The wireless communication system includes a sensing initiator and a sensing responder. The sensing initiator is configured to perform a method according to the seventeenth aspect or any one of possible implementation forms of the seventeenth aspect, and the sensing responder is configured to perform a method according to the eighteenth aspect or any one of possible implementation forms of the eighteenth aspect.

[0133] The technical effects achieved in the above aspects may refer to each other or to the beneficial effects in the following method embodiments, which will not be described in detail herein. [Brief explanation of the drawings]

[0134] [Figure 1] FIG. 1 is a diagram of a trigger-based sensing measurement instance according to an embodiment of the present application. [Figure 2] FIG. 1 is a diagram of an SBP procedure according to an embodiment of the present application. [Figure 3] FIG. 1 is a diagram of a frame format of a sensing element according to an embodiment of the present application. [Figure 4a] FIG. 2 is a diagram of the structure of an access point according to an embodiment of the present application; [Figure 4b] 1 is a diagram of a station structure according to an embodiment of the present application; [Figure 5] 1 is a first schematic flowchart of an information display method in WLAN sensing according to an embodiment of the present application; [Figure 6a] FIG. 2 is a diagram of a frame format of an SBP request frame according to an embodiment of the present application. [Figure 6b] FIG. 2 is a diagram of a frame format of an SBP response frame according to an embodiment of the present application. [Figure 7a] FIG. 1 is a diagram of a first frame format of an SBP parameters element according to an embodiment of the present application. [Figure 7b] FIG. 10 is a diagram of a second frame format of an SBP parameters element according to an embodiment of the present application. [Figure 8] FIG. 1 is a diagram of a first frame format of an SBP parameters control field according to an embodiment of the present application. [Figure 9a] FIG. 10 is a diagram of a third frame format of an SBP parameters element according to an embodiment of the present application. [Figure 9b] FIG. 10 is a diagram of a fourth frame format of an SBP parameters element according to an embodiment of the present application. [Figure 10] FIG. 10 is a diagram of a second frame format of an SBP parameters control field according to an embodiment of the present application. [Figure 11] 1 is a first schematic flowchart of an information display method in WLAN sensing according to an embodiment of the present application; [Figure 12] FIG. 10 is a diagram of a fifth frame format of the SBP parameters element according to an embodiment of the present application. [Figure 13] FIG. 10 is a diagram of a sixth frame format of the SBP parameters element according to an embodiment of the present application. [Figure 14] FIG. 10 is a diagram of a third frame format of an SBP parameters control field according to an embodiment of the present application. [Figure 15] FIG. 10 is a diagram of a seventh frame format of the SBP parameters element according to an embodiment of the present application. [Figure 16] 10 is a third schematic flowchart of an information display method in WLAN sensing according to an embodiment of the present application; [Figure 17] FIG. 10 is a diagram of an eighth frame format of the SBP parameters element according to an embodiment of the present application. [Figure 18] FIG. 10 is a diagram of a fourth frame format of an SBP parameters control field according to an embodiment of the present application. [Figure 19] FIG. 10 is a diagram of the ninth frame format of the SBP parameters element according to one embodiment of the present application. [Figure 20] 4 is a fourth schematic flowchart of an information display method in WLAN sensing according to an embodiment of the present application. [Figure 21] FIG. 1 is a diagram of a frame format of a sensing field in a sensing element according to an embodiment of the present application. [Figure 22] 5 is a fifth schematic flowchart of an information display method in WLAN sensing according to an embodiment of the present application. [Figure 23] FIG. 10 is a diagram of another frame format of the sensing field in the sensing element according to an embodiment of the present application. [Figure 24]6 is a sixth schematic flowchart of an information display method in WLAN sensing according to an embodiment of the present application. [Figure 25] FIG. 10 is a diagram of a frame format of a sensing measurement setup request frame according to an embodiment of the present application. [Figure 26a] FIG. 1 is a diagram of a frame format of a measurement setup control field according to an embodiment of the present application. [Figure 26b] FIG. 10 is a diagram of another frame format of the measurement setup control field according to an embodiment of the present application. [Figure 27] FIG. 10 is a diagram of a frame format of a sensing measurement setup response frame according to an embodiment of the present application. [Figure 28] FIG. 10 is a diagram of yet another frame format of the sensing field in the sensing element according to an embodiment of the present application. [Figure 29] 1 is a diagram of the structure of a communication device according to an embodiment of the present application; [Figure 30] FIG. 2 is a diagram of another structure of a communication device according to an embodiment of the present application. [Figure 31] FIG. 10 is a diagram of yet another structure of a communication device according to an embodiment of the present application. DETAILED DESCRIPTION OF THE INVENTION

[0135] The following clearly and completely describes the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application.

[0136] In the description of this application, terms such as "first," "second," etc. are used merely to distinguish between different objects and do not indicate a particular order. In addition, unless otherwise specified, " / " means "or." For example, A / B may represent A or B. The term "and / or" in this specification only represents an association relationship between related objects and indicates that there may be three possible relationships. For example, A and / or B may represent the following three cases: only A is present, both A and B are present, and only B is present. In addition, "at least one" means one or more, and "a plurality of" means two or more. "At least one of the following items (portions)" or similar expressions refers to any combination of these items, including a single item (portion) or any combination of multiple items (portions). For example, at least one item (portion) of a, b, or c may refer to a, b, c, a and b, a and c, b and c, or a, b, and c, where a, b, and c may each be singular or plural.

[0137] Additionally, the terms "include" and "have," 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 further include steps or units that are not listed, or may optionally further include other inherent steps or units of the process, method, product, or device.

[0138] In this application, the terms "example," "for example," and the like denote providing an example, illustration, or explanation. Any embodiment or design manner expressed in this application as an "example," "such as," or "for example" should not be described as preferred or having significant advantages over another embodiment or design manner. Strictly speaking, the use of words such as "example," "such as," "for example," and the like is intended to present the relevant concept in a particular manner.

[0139] It should be understood that in this application, "when," "if," and "provided that" all mean that the device performs the corresponding processing in an objective situation, and are not intended to limit time, nor do the terms imply that the device is required to perform a decision action during implementation, nor do they imply any other limitations.

[0140] In this application, elements referred to in the singular are intended to denote "one or more" and not "one and only one" unless otherwise specified.

[0141] In the embodiments of the present application, it may be understood that "B corresponding to A" indicates that there is a correspondence between A and B, and B can be determined based on A. Determining B based on A does not mean that B is determined based only on A, and B may alternatively be determined based on A and / or other information.

[0142] The following briefly explains some relevant content, terms, or nouns in this application.

[0143] 1. WLAN Sensing Technology WLAN sensing technology is a sensing technology based on radar technology. Indeed, WLAN sensing technology may alternatively be any sensing technology based on wireless carrier communication and is not limited to radar-based sensing technology. Radar-based sensing is used as an example. Radar includes a transmitting antenna and a receiving antenna. The transmitting antenna transmits electromagnetic waves. When encountering a target, the electromagnetic waves are reflected, and the reflected waves are received by the receiving antenna. A radar system analyzes target characteristic information, such as position, shape, motion characteristics, and motion tracking, through signal processing based on the changes between the transmitted and received waves. Radar sensing has many inherent advantages. For example, radar is not affected by lighting conditions and has the ability to penetrate obstacles, thereby better protecting personal privacy. In addition, radar has a longer sensing range and does not cause harm to humans or animals. The advantages of using radar technology for sensing are mainly reflected in the detection of moving objects, and the target's movement status, such as movement direction and speed, can be observed and determined through the Doppler effect of the target's echo.

[0144] Introducing sensing technology into WLANs has good business prospects. WLAN sensing technology can be applied to various scenarios. For example, in sports, this technology can be used to detect the movement status and movement tracking of people and balls, and in home environments, this technology can be used to perform human fall detection to prevent elderly people from falling. Channel state information (CSI) is processed to determine the movement status and movement tracking of people. WLAN sensing technology can fully utilize existing WLAN resources without requiring significant costs. In future densely deployed WLANs, there will be multiple STAs within the coverage area of ​​one AP, and the AP may perform appropriate resource scheduling for these STAs to improve system throughput and robustness.

[0145] 2. Role in WLAN sensing A sensing initiator is a station that initiates a sensing procedure by transmitting a WLAN sensing measurement setup request frame (sensing initiator: A station (STA) that initiates a WLAN sensing procedure by transmitting the WLAN sensing measurement setup request frame).

[0146] A sensing responder is a station (STA) that participates in a WLAN sensing procedure by responding to a sensing initiator.

[0147] A sensing transmitter is a station (STA) that transmits PPDUs used for measurements in a WLAN sensing procedure.

[0148] A sensing receiver is a station (STA) that receives physical layer (PHY) protocol data units (PPDUs) sent by a sensing transmitter and obtains measurements in a WLAN sensing procedure.

[0149] A proxy sensing initiator (SBP initiator) is a station that transmits an SBP request frame (sensing by proxy (SBP) initiator: A non-AP STA that transmits an SBP request frame).

[0150] A sensing by proxy (SBP) responder is an AP that is the intended recipient of an SBP request frame.

[0151] 3. General Sensing (Non-Proxy Sensing) The 802.11bf protocol specifies a sensing protocol for the sub-7 GHz frequency band and the 60 GHz frequency band. According to the 802.11bf protocol, the overall sensing procedure may include the following five steps:

[0152] (1) In the sensing session setup phase, a sensing session is set up between stations, and in this phase, a sensing initiator and a sensing responder exchange sensing capability information. It can be understood that a sensing session is a protocol delivered between two stations, i.e., a sensing initiator and a sensing responder. One sensing initiator may maintain sensing sessions with multiple sensing responders, but multiple sensing sessions still need to be set up one by one.

[0153] (2) During the sensing measurement setup phase, the sensing initiator and the sensing responder negotiate and agree on the measurement parameters to be used in the sensing procedure, such as the role of the sensing responder or the measurement feedback type. Role in this context means that the sensing responder acts as a sensing transmitter (sensing TX) or a sensing receiver (sensing RX) to participate in the sensing measurement procedure.

[0154] (3) In the sensing measurement instance phase, sensing measurements are performed in the sensing measurement instance, and one sensing measurement instance allows the participation of multiple sensing responders.

[0155] (4) During the sensing measurement setup termination phase, the sensing measurement setup corresponding to the sensing responder is terminated (i.e., sensing measurements are no longer performed based on the group of measurement parameters), and the sensing responder is no longer bound to the corresponding sensing measurement setup, although the sensing responder may still be in a sensing session.

[0156] (5) In the sensing session termination step, the sensing session is terminated and no sensing measurements are performed.

[0157] In the sub-7 GHz frequency band, sensing measurements may be classified into two types: sensing measurements between one AP and one or more non-AP STAs, and sensing measurements between multiple non-AP STAs.

[0158] It may be understood that a non-AP STA may be referred to as an STA for short, and that non-AP STA and STA may be used interchangeably herein.

[0159] There are two types of sensing measurements between an AP and one or more non-AP STAs: trigger-based (TB) sensing measurement and non-trigger-based (non-TB) sensing measurement. In TB-type sensing measurement, the AP acts as a sensing initiator to start the sensing measurement procedure, and one or more non-AP STAs act as sensing responders to participate in the sensing measurement procedure. In non-TB-type sensing measurement, the non-AP STA acts as a sensing initiator to start the sensing measurement procedure, and the AP acts as a sensing responder to participate in the sensing measurement procedure. Some embodiments of the present application mainly focus on trigger-based sensing measurement. For details, please refer to the description in the following embodiments.

[0160] Trigger-based sensing measurements between an AP and one or more non-AP STAs include trigger frame (TF) sounding and null data packet announcement (NDPA) sounding. In TF sounding, one or more non-AP STAs act as sensing transmitters to transmit null data packets (NDPs) to the AP, and the AP acts as sensing receivers to receive the NDPs for sensing measurements. In NDPA sounding, the AP acts as a sensing transmitter to transmit NDPs to one or more non-AP STAs, and these non-AP STAs act as sensing receivers to receive the NDPs for sensing measurements.

[0161] Sensing measurements between multiple non-AP STAs are called TB-type sensing measurements, while sensing measurements between multiple non-AP STAs are performed between multiple sensing responders, and are called sensing responder-to-sensing responder (SR2SR) sounding in the protocol. In SR2SR sounding, one non-AP STA (sensing responder) acts as a sensing transmitter to send an NDP to one or more other non-AP STAs (sensing responders), and one or more non-AP STAs act as sensing receivers to receive the NDP for sensing measurements.

[0162] 1 is a diagram of a trigger-based sensing measurement instance according to one embodiment of the present application. As shown in FIG. 1, the trigger-based sensing measurement instance includes, but is not limited to, one or more of the following phases: a polling phase, one or more sounding phases (e.g., one or more of an NDPA sounding phase, a TF sounding phase, and an SR2SR sounding phase), and a reporting phase. During the polling phase, the AP transmits a sensing polling trigger frame (TF) to STA1, STA2, STA3, and STA4. If STA1, STA2, STA3, and STA4 are enabled to transmit, they reply with a clear to send (CTS)-to-self frame after one short inter-frame space (SIFS). During the NDPA sounding phase, the AP sends a sensing NDPA frame to STA1, and one SIFS later, the AP sends an NDP to STA1, where the NDP is sent from sensing initiator to sensing responder (SI2SR), and is therefore represented by SI2SR NDP in Figure 1, and STA1 receives the NDP for sensing measurement. During the TF sounding phase, the AP sends a sensing sounding trigger frame (sensing sounding TF) to STA4, and one SIFS later, STA4 sends an NDP to the AP, where the NDP is sent from sensing responder to sensing initiator (SR2SI), and is therefore represented by SR2SI NDP in Figure 1, and the AP receives the NDP for sensing measurement.During the SR2SR sounding phase, the AP sends an SR2SR sounding trigger frame (SR2SR sounding TF) to STA2 and STA3, and one SIFS later, STA2 sends an NDP to STA3, where the NDP is sent from the sensing responder to the sensing responder (SR2SR), and is therefore represented by the SR2SR NDP in Figure 1, and STA3 receives the NDP for sensing measurement. During the reporting phase, if the AP sends a sensing report trigger frame (sensing report TF) to STA1 and STA3, one SIFS later, STA1 and STA3 return corresponding sensing measurement report frames to the AP separately.

[0163] 4. Proxy Sensing The 802.11bf protocol further specifies a special sensing scenario, namely, sensing by proxy (SBP). SBP means that a non-AP STA may request an AP to act as a proxy for the non-AP STA to perform WLAN sensing, and may enable the AP to feed back the sensing measurement results to the non-AP STA. A non-AP STA that initiates the proxy sensing procedure is called an SBP initiator, and an AP that participates in the proxy sensing procedure as a proxy is called an SBP responder. In addition, the AP is also the sensing initiator in the sensing procedure. The proxy sensing procedure may include, but is not limited to, one or more of the following steps:

[0164] (1) During the SBP setup phase, an SBP initiator (usually a non-AP STA) requests to set up an SBP with an SBP responder (usually an AP), and the SBP responder either accepts or rejects the SBP setup request.

[0165] (2) The WLAN sensing phase includes sensing measurement setup and trigger-based (TB) sensing measurement instances. In sensing measurement setup, an SBP responder (which is also the sensing initiator, i.e., AP) and one or more sensing responders (i.e., other non-AP STAs) negotiate and configure measurement parameters for WLAN sensing. In trigger-based sensing measurement instances, TB-type sensing measurements are performed. TB-type sensing measurements include TF sounding, NDPA sounding, and SR2SR sounding. Therefore, within an SBP procedure, one sensing measurement instance may perform three types of sensing measurements: TF sounding, NDPA sounding, and SR2SR sounding.

[0166] (3) In the SBP reporting phase, the SBP responder reports the sensing measurement results to the SBP initiator.

[0167] (4) In the SBP termination phase, the SBP procedure is terminated. The termination phase may be initiated by either the SBP initiator or the SBP responder.

[0168] 2 is a diagram of an SBP procedure according to one embodiment of the present application. As shown in FIG. 2, during the SBP setup phase, an SBP initiator (non-AP STA1) sends an SBP request frame to an SBP responder (AP) to request the SBP responder (AP) to act on behalf of the SBP initiator (non-AP STA1) to initiate a sensing measurement procedure, and the SBP responder (AP) replies with an SBP response frame to accept or reject the request from the SBP initiator. During the sensing measurement setup phase, the sensing initiator (AP) separately sends a sensing measurement setup request frame to sensing responder 1 (non-AP STA2) and sensing responder 2 (non-AP STA3), and sensing responder 1 (non-AP STA2) and sensing responder 2 (non-AP STA3) separately reply with a sensing measurement setup response frame. In the sensing measurement instance, a TB-type sensing measurement is performed. After the sensing measurement is completed, the SBP responder (AP) feeds back an SBP report to the SBP initiator (non-AP STA1). After receiving the SBP report, the SBP initiator (non-AP STA1) may send an SBP termination frame to terminate the SBP procedure.

[0169] The specific frame formats and meanings of the various frames in Figure 2 may be understood to refer to existing standard protocols, for example, the existing 802.11bf protocol, and will not be described in detail herein due to space limitations.

[0170] 5. Sensing session setup and sensing measurement setup In a general sensing (non-proxy sensing) procedure, a sensing initiator and a sensing responder may exchange sensing capability information in a sensing session setup phase and negotiate and unify measurement parameters in a sensing measurement setup phase. In existing standard protocols, one sensing initiator may set up up to eight sensing measurement setups (MSs) with one sensing responder, and one sensing measurement setup can be understood as a group of measurement parameters. Each sensing measurement setup may be uniquely identified by using the sensing initiator's medium access control (MAC) address and a measurement setup identifier (MS identifier, MSID), which is usually represented by 3 bits. Since the sensing initiator and the sensing responder may require memory and processing modules to store and process sensing capability information, measurement reports, etc., to maintain one MS, the total number of MSs that can be maintained by one sensing initiator or one sensing responder is limited. In existing standards, the sensing initiator and the sensing responder exchange "the maximum number of MSs that the sensing initiator or the sensing responder can maintain with the peer end" as sensing capability information during the sensing session setup phase, and the maximum number of MSs that can be maintained is usually indicated by 4 bits. The 4 bits may indicate 0 to 8 MSs.

[0171] In existing standards, sensing capability information of a sensing initiator and a sensing responder may be exchanged using a sensing element. FIG. 3 is a diagram of a sensing element frame format according to an embodiment of the present application. As shown in FIG. 3, a sensing element may include, but is not limited to, one or more of the following: an element ID field, a length field, an element ID extension field, and a sensing field. The sensing field includes at least a max number of supported setups field, where the max number of supported setups field is 4 bits in length. The max number of supported setups field may indicate the maximum total number of (sensing) measurement setups (MSs) that a sensing element transmitting device can set up with a sensing element receiving device, or may indicate the maximum number of MSs that a sensing element transmitting device can maintain with a sensing element receiving device. The names and meanings of other fields in the sensing fields shown in Figure 3 may be understood to refer to existing standards, such as the 802.11bf standard, and will not be described in detail herein due to space limitations.

[0172] The following briefly describes access points (APs) and non-access point stations (non-AP STAs) in this application.

[0173] In this specification, a non-access point station (non-AP STA) may also be referred to as a station (STA) for short, and the two may be used interchangeably.

[0174] An access point (e.g., the AP in FIG. 1 or the AP in FIG. 2) is a device having wireless communication capabilities, supports communication by using a WLAN protocol, and has the capability of communicating with other devices (e.g., stations or other access points) in a WLAN network. Indeed, an access point may further have the capability of communicating with other devices. In a WLAN system, an access point may be referred to as an access point station (AP STA). A device having wireless communication capabilities may be an entire device, or a chip or processing system installed within the entire device. A device having a chip or processing system installed therein may implement the methods and functions in the embodiments of the present application under the control of the chip or processing system. An AP in the embodiments of the present application is a device that provides services to STAs and may support the 802.11 series of protocols. For example, an AP may be a communication entity, such as a communication server, a router, a switch, or a bridge. An AP may include various forms of macro base stations, micro base stations, relay stations, etc. Indeed, the AP may alternatively be a chip or processing system among these devices in various forms for implementing the methods and functions in the embodiments of the present application.

[0175] A station (e.g., any STA in FIG. 1 or any non-AP STA in FIG. 2) is a device having wireless communication capabilities, supports communication by using a WLAN protocol, and has the ability to communicate with another station or an access point in a WLAN network. In a WLAN system, a station may 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 with an AP and further communicate with a WLAN. A device having wireless communication capabilities may be an entire device, or a chip or processing system installed within the entire device. A device having a chip or processing system installed therein may implement the methods and functions in the embodiments of the present application under the control of the chip or processing system. For example, a STA may be a user equipment capable of connecting to the Internet, such as a tablet computer, a desktop computer, a laptop computer, a notebook computer, an ultra-mobile personal computer (UMPC), a handheld computer, a netbook, a personal digital assistant (PDA), or a mobile phone. Alternatively, the STA may be an Internet of Things node in the Internet of Things, an in-vehicle communication device in the Internet of Vehicles, an entertainment device, a gaming device or system, a global positioning system device, etc. Alternatively, the STA may be a chip and processing system in the above terminal.

[0176] WLAN systems can provide high-speed and low-latency transmission. With the continuous evolution of WLAN application scenarios, WLAN systems will be applicable to more scenarios and industries, such as the Internet of Things industry, Internet of Vehicles industry, banking industry, corporate offices, stadium exhibition halls, concert halls, hotel rooms, dormitories, hospital wards, classrooms, supermarkets, plazas, streets, manufacturing workshops, and warehouses. Indeed, a device (e.g., an access point or station) supporting WLAN communication may be a sensor node (e.g., a smart water meter, a smart power meter, or a smart air detection node) in a smart city, a smart device (e.g., a smart camera, a projector, a display, a television, a stereo, a refrigerator, or a washing machine) in a smart home, a node in the Internet of Things, an entertainment terminal (e.g., an augmented reality (AR), a virtual reality (VR), or another wearable device), a smart device (e.g., a printer, a projector, a loudspeaker, or a stereo) in a smart office, an Internet of Vehicles device in the Internet of Vehicles, an infrastructure in everyday life scenarios (e.g., a vending machine, a self-service navigation station in a supermarket, a self-service cash register device, or a self-service ordering machine), a device in large sports and music venues, etc. The specific forms of stations and access points are not limited in the embodiments of the present application and are merely illustrative examples herein.

[0177] It should be understood that the 802.11 standard focuses on the physical layer (PHY) and medium access control (MAC) layer. In one example, FIG. 4a is a diagram of the structure of an access point according to one embodiment of the present application. The AP may be a multi-antenna / multi-radio frequency AP or a single-antenna / single-radio frequency AP. The antenna / radio frequency is used to transmit / receive data packets (data packets herein may also be referred to as physical layer protocol data units (PPDUs)). In one implementation, the antenna or radio frequency portion of the AP may be separated from the main body of the AP, i.e., may be located remotely. In FIG. 4a, the AP may include a physical layer processing circuit and a medium access control processing circuit. The physical layer processing circuit may be configured to process physical layer signals, and the MAC layer processing circuit may be configured to process MAC layer signals. In another example, FIG. 4b is a diagram of the structure of a station according to one embodiment of the present application. FIG. 4b shows a diagram of the structure of a single-antenna / single-radio frequency STA. In a practical scenario, the STA may alternatively be a multi-antenna / multi-radio frequency STA, i.e., a device with two or more antennas. The antennas / radio frequencies are configured to transmit / receive data packets. In one implementation, the antenna or radio frequency portion of the STA may be separated from the main body of the STA, i.e., may be located remotely. In FIG. 4b, the STA may include a PHY processing circuit and a MAC processing circuit. The physical layer processing circuit may be configured to process physical layer signals, and the MAC layer processing circuit may be configured to process MAC layer signals.

[0178] The following will describe in detail the technical solutions provided in this application with reference to more accompanying drawings.

[0179] In this application, unless otherwise specified, the same or similar parts of the embodiments or implementations shall refer to each other. In the embodiments of this application, and the implementations / methods / implementation methods in the embodiments, unless otherwise specified or there is a logical conflict, the terms and / or descriptions shall be consistent and may refer to each other between different embodiments and between implementations / methods / implementation methods in the embodiments. The technical features in different embodiments and implementations / methods / implementation methods in the embodiments may be combined to form new embodiments, implementations, methods, or implementations based on the internal logical relationships of the technical features. The following implementations of this application are not intended to limit the protection scope of this application.

[0180] It may be known from the above-mentioned TB-type non-proxy sensing procedure (i.e., general sensing in the third point above) that a sensing initiator may negotiate and unify measurement parameters used in the sensing procedure with a sensing responder. For example, as a device that starts the sensing procedure (i.e., the sensing initiator), the AP may determine which sensing responders will participate in the TF sounding, NDPA sounding, or SR2SR sounding during the sensing measurement setup phase. In addition, the AP may determine the role of each sensing responder in the TF sounding, NDPA sounding, or SR2SR sounding. In particular, each sensing responder acts as a sensing transmitter (hereinafter referred to as TX for short), a sensing receiver (hereinafter referred to as RX for short), or both a sensing transmitter (TX) and a sensing receiver (RX) in the TF sounding, NDPA sounding, or SR2SR sounding. These measurement parameters are crucial for obtaining the sensing effect and for analyzing the sensing measurement results.

[0181] However, in the SBP procedure, the SBP initiator does not have the ability to set measurement parameters for the sensing responders (e.g., which sensing responders participate in TF sounding, NDPA sounding, or SR2SR sounding, and the role of each sensing responder).

[0182] In one possible implementation, the SBP initiator may transfer common measurement parameters used for sensing to the SBP responder during the SBP setup phase through the sensing measurement setup parameter element. In other words, these common measurement parameters apply to all sensing responders, and the SBP initiator cannot set different measurement parameters for different sensing responders, such as the role of each sensing responder and the sensing measurements that each sensing responder participates in and are of a specific TB type (TB-type sensing measurements include TF sounding, NDPA sounding, and SR2SR sounding). However, the role of the sensing responder and the sensing measurements that each sensing responder participates in and are of a specific TB type are crucial for obtaining the sensing effect and analyzing the sensing measurement results by the SBP initiator.

[0183] In view of this, an embodiment of the present application provides an information display method in WLAN sensing, which may be applied to the proxy sensing procedure shown in Fig. 2. In this method, the SBP initiator is provided with the ability to set measurement parameters for the sensing responder during the SBP setup phase, so as to help the SBP initiator control and manage the SBP sensing procedure and analyze the SBP reports, thereby improving sensing performance.

[0184] Optionally, the proxy sensing initiator in the embodiment of the present application may be the non-AP STA1 shown in Figure 2, and the proxy sensing responder in the embodiment of the present application may be the AP shown in Figure 2. The sensing responders in the embodiment of the present application include, but are not limited to, the non-AP STA2 and the non-AP STA3 shown in Figure 2. The proxy sensing initiator, the proxy sensing responder, and the sensing responder in the embodiment of the present application may all support a WLAN sensing protocol, for example, 802.11bf or an 802.11bf next-generation protocol.

[0185] Embodiment 1 Embodiment 1 of the present application mainly describes how to indicate in the SBP setup phase which sensing responders should participate in sensing measurements of a specific TB type.

[0186] 5 is a first schematic flowchart of an information display method in WLAN sensing according to an embodiment of the present application. As shown in FIG. 5, the information display method in WLAN sensing includes but is not limited to the following steps:

[0187] S101: An SBP initiator sends a proxy sensing request frame, where the proxy sensing request frame includes addresses of N sensing responders, where the address of one sensing responder is used to identify one sensing responder, and the proxy sensing request frame further includes first indication information, where the first indication information indicates whether the N sensing responders will participate in one or more of the following sensing measurements: TF sounding, NDPA sounding, or SR2SR sounding, where N is an integer greater than or equal to 1.

[0188] In response, the SBP responder receives a proxy sensing request frame.

[0189] S102: The SBP responder transmits a proxy sensing response frame.

[0190] In response, the SBP initiator receives a proxy sensing response frame.

[0191] Optionally, during the SBP setup phase, the SBP initiator sends an SBP request frame to the SBP responder, where the SBP request frame may be used to request the SBP responder to act as a proxy for the SBP initiator to perform sensing measurements. In other words, the SBP request frame allows a non-AP STA to invoke an SBP procedure. After receiving the SBP request frame, the SBP responder replies with an SBP response frame. The SBP response frame may be used to accept or reject the SBP initiator's request.

[0192] In one possible implementation, the SBP request frame may carry measurement parameters for the sensing responder, for example, first indication information, which may indicate whether the sensing responder participates in one or more of the following sensing measurements: TF sounding, NDPA sounding, or SR2SR sounding. If the SBP responder can satisfy the measurement parameters carried in the SBP request frame, the SBP responder may indicate in the SBP response frame that the SBP request is accepted. If the SBP responder cannot satisfy the measurement parameters carried in the SBP request frame, the SBP responder may indicate in the SBP response frame that the SBP request is rejected. Optionally, if the SBP responder rejects the SBP request, the SBP responder may further provide recommended measurement parameters in the SBP response frame.

[0193] FIG. 6a is a diagram of a frame format of an SBP request frame according to one embodiment of the present application. As shown in FIG. 6a, the SBP request frame includes, but is not limited to, a variable SBP parameter element. For example, the SBP parameter element may carry measurement parameters, e.g., first indication information, regarding the sensing responder to indicate whether the sensing responder (designated by the SBP initiator) participates in one or more of the following sensing measurements: TF sounding, NDPA sounding, or SR2SR sounding. FIG. 6b is a diagram of a frame format of an SBP response frame according to one embodiment of the present application. As shown in FIG. 6b, the SBP response frame includes, but is not limited to, a status code field. The status code field indicates whether the SBP request is accepted or rejected. Optionally, if the status code field indicates that the SBP request is rejected, the SBP response frame may further include a variable SBP parameter element, which may carry measurement parameters recommended by the SBP responder. For example, the SBP parameter element also carries first indication information to indicate whether the sensing responder (designated by the SBP responder) will participate in one or more of the following sensing measurements: TF sounding, NDPA sounding, or SR2SR sounding. Optionally, if the status code field indicates that the SBP request is accepted, the SBP response frame may also include a variable SBP parameter element, which may be the same as the SBP parameter element carried in the SBP request frame.

[0194] The meaning of fields not described in Figures 6a and 6b may be understood to refer to existing standards, for example the 802.11bf standard, and will not be described in detail herein.

[0195] The following describes the SBP parameters element in detail.

[0196] In one possible implementation, the SBP parameters element includes first indication information, which may indicate whether the sensing responder participates in one or more of the following sensing measurements: TF sounding, NDPA sounding, or SR2SR sounding. Optionally, the SBP parameters element further includes addresses of N sensing responders, where the address of one sensing responder is used to identify one sensing responder. In this case, the first indication information may specifically indicate whether the N sensing responders identified by the addresses of the N sensing responders participate in one or more of the following sensing measurements: TF sounding, NDPA sounding, or SR2SR sounding.

[0197] In another possible implementation, the first display information may indicate one or more of the following: sensing responders participating in TF sounding, sensing responders participating in NDPA sounding, or sensing responders participating in SR2SR sounding.

[0198] Implementation form 1 The first display information may be implemented using a bitmap. In one possible implementation, the first display information may include one or more of the following: a first bitmap, a second bitmap, or a third bitmap. Bits in the first bitmap may indicate whether the N sensing responders participate in TF sounding, bits in the second bitmap may indicate whether the N sensing responders participate in NDPA sounding, and bits in the third bitmap may indicate whether the N sensing responders participate in SR2SR sounding. The lengths of the first bitmap, the second bitmap, and the third bitmap are all equal to or greater than N bits.

[0199] In some scenarios, one bit corresponds to one sensing responder. Because all fields in the SBP parameter element are in units of octets, the lengths of the first bitmap, the second bitmap, and the third bitmap may also be in units of octets. When the length of the first bitmap is longer than N bits, the length of the significant bits in the first bitmap is N, and one significant bit in the first bitmap corresponds to one sensing responder. Similarly, when the length of the second bitmap is longer than N bits, the length of the significant bits in the second bitmap is N, and one significant bit in the second bitmap corresponds to one sensing responder. Similarly, when the length of the third bitmap is longer than N bits, the length of the significant bits in the third bitmap is N, and one significant bit in the third bitmap corresponds to one sensing responder. Therefore, the meanings of the first bitmap, the second bitmap, and the third bitmap may alternatively be expressed as follows: That is, one valid bit in the first bitmap indicates whether the sensing responder corresponding to that valid bit will participate in TF sounding, one valid bit in the second bitmap indicates whether the sensing responder corresponding to that valid bit will participate in NDPA sounding, and one valid bit in the third bitmap indicates whether the sensing responder corresponding to that valid bit will participate in SR2SR sounding.

[0200] It can be understood that if the length of the first bitmap is equal to N bits, it indicates that all bits in the first bitmap are valid bits. Similarly, if the length of the second bitmap is equal to N bits, it indicates that all bits in the second bitmap are valid bits. Similarly, if the length of the third bitmap is equal to N bits, it indicates that all bits in the third bitmap are valid bits.

[0201] In some other scenarios, multiple bits correspond to one sensing responder. For example, all two bits or all three bits correspond to one sensing responder. The correspondence between the values ​​of the multiple bits and the sensing responders may be predefined or preconfigured. This is not limited in this embodiment of the present application.

[0202] In another possible implementation, the first indication information may include a fourth bitmap, where M bits in the fourth bitmap correspond to one sensing responder. In this case, the length of the fourth bitmap is M*N bits, and the bits correspond to N sensing responders. All M bits in the fourth bitmap indicate whether the corresponding sensing responder participates in TF sounding, NDPA sounding, or SR2SR sounding. For example, M is equal to 2. When the values ​​of the two bits in the fourth bitmap are 01 (binary), it indicates that the sensing responders corresponding to the two bits participate in TF sounding; when the values ​​of the two bits in the fourth bitmap are 10 (binary), it indicates that the sensing responders corresponding to the two bits participate in NDPA sounding; when the values ​​of the two bits in the fourth bitmap are 11 (binary), it indicates that the sensing responders corresponding to the two bits participate in SR2SR sounding; or when the values ​​of the two bits in the fourth bitmap are 00 (binary), it indicates that the two bits are reserved. It can be understood that in this embodiment of the present application, the mapping relationship between the value of the M bits and TF sounding, NDPA sounding, and SR2SR sounding is not limited. It can be further understood that the value of M can be greater than or less than two bits as the standard evolves.

[0203] For ease of understanding, the following uses an example in which one bit corresponds to one sensing responder. Figure 7a is a diagram of a first frame format of an SBP parameters element according to an embodiment of the present application. As shown in Figure 7a, the SBP parameters element may include, but is not limited to, one or more of the following: an SBP parameters control field, a sensing responder addresses field, a TF sounding responder bitmap, an NDPA sounding responder bitmap, or an SR2SR sounding responder bitmap. The TF sounding responder bitmap (i.e., the first bitmap) indicates whether each of the N sensing responders participates in TF sounding, the NDPA sounding responder bitmap (i.e., the second bitmap) indicates whether each of the N sensing responders participates in NDPA sounding, and the SR2SR sounding responder bitmap (i.e., the third bitmap) indicates whether each of the N sensing responders participates in SR2SR sounding. The SBP initiator may provide N candidate sensing responders in the SBP request frame, and the candidate sensing responders are indicated using the sensing responder address field. Herein, one sensing responder address field contains the addresses of the N sensing responders. One valid bit in the TF / NDPA / SR2SR sounding responder bitmap is for a sensing responder and corresponds to one sensing responder identified by the address in the sensing responder address field.

[0204] The meanings of other fields not described in Fig. 7a may be understood to refer to existing standards. Details will not be described in this specification. It may be further understood that the names, lengths, orders, etc. of the TF sounding responder bitmap, NDPA sounding responder bitmap, and SR2SR sounding responder bitmap in Fig. 7a are merely examples. This is not limited to this embodiment of the present application.

[0205] For example, the TF / NDPA / SR2SR sounding responder bitmap has a unit called an octet, and the length of the TF / NDPA / SR2SR sounding responder bitmap is

number

number

[0206] It can be understood that the role of the sensing responder (i.e., TX / RX / TX and RX) is fixed in TF sounding and NDPA sounding. Regardless of the number of measurements, in TF sounding, the non-AP STA transmits an NDP to the AP for sensing measurement, and in NDPA sounding, the AP transmits an NDP to the non-AP STA for sensing measurement. However, in SR2SR sounding, the role of the sensing responder (i.e., TX / RX / TX and RX) is not fixed. In other words, for multiple measurements, the non-AP STA that transmits the NDP may be different from the non-AP STA that receives the NDP. For example, during the first time of SR2SR sounding, non-AP STA1 transmits an NDP, and non-AP STA3 and non-AP STA4 receive the NDP for measurement; during the second time of SR2SR sounding, non-AP STA2 transmits an NDP, and non-AP STA1 and non-AP STA6 receive the NDP for measurement. Therefore, the number of display fields (ie, third bitmaps) indicating whether to participate in SR2SR sounding may also match the number of groups of sensing responder roles in SR2SR sounding.

[0207] Therefore, since the role of the sensing responder in the SR2SR sounding is not fixed, the first display information in this embodiment of the present application may further include multiple third bitmaps. Optionally, if a third bitmap is present in the first display information, the first display information may include L third bitmaps, where L is an integer greater than or equal to 1. The value of L may be predefined, preconfigured, prenegotiated, or indicated by an SBP parameter element, etc. (See the description below for details). One third bitmap may correspond to one SR2SR sounding pattern, and one SR2SR sounding pattern corresponds to one or more SR2SR soundings. In this case, one third bitmap also corresponds to one or more SR2SR soundings. For example, one third bitmap may indicate whether N sensing responders will participate in the SR2SR sounding corresponding to the SR2SR sounding pattern corresponding to the third bitmap. An SR2SR sounding pattern may describe the transmitter and receiver of a sensing PPDU (e.g., NDP) in SR2SR sounding. Alternatively, one SR2SR sounding pattern may represent a group of roles in SR2SR sounding (i.e., a sensing responder acts as a TX, a sensing responder acts as an RX, or a sensing responder acts as both a TX and an RX).

[0208] 7b is a diagram of a second frame format of an SBP parameters element according to an embodiment of the present application. As shown in FIG. 7b, the SBP parameters element may include, but is not limited to, one or more of the following: an SBP parameters control field, a sensing responder addresses field, a TF sounding responder bitmap, an NDPA sounding responder bitmap, or L SR2SR sounding bitmaps. The TF sounding responder bitmap (i.e., the first bitmap) indicates whether each of the N sensing responders participates in TF sounding, and the NDPA sounding responder bitmap (i.e., the second bitmap) indicates whether each of the N sensing responders participates in NDPA sounding. L SR2SR sounding bitmaps (i.e., L third bitmaps) correspond to L SR2SR sounding patterns, one SR2SR sounding bitmap corresponds to one SR2SR sounding pattern, and one SR2SR sounding pattern may have one or more SR2SR soundings. One SR2SR sounding bitmap (i.e., one third bitmap) indicates whether each of N sensing responders participates in the SR2SR sounding corresponding to the SR2SR sounding bitmap. The SBP initiator may provide N candidate sensing responders in an SBP request frame, and the candidate sensing responders are indicated using sensing responder address fields. In this specification, one sensing responder address field contains the addresses of the N sensing responders.A valid bit in the TF / NDPA sounding responder bitmap belongs to a sensing responder and corresponds to a sensing responder identified by an address in the sensing responder address field. Similarly, a valid bit in the SR2SR sounding bitmap belongs to a sensing responder and corresponds to a sensing responder identified by an address in the sensing responder address field. For example, valid bits in the same order in L SR2SR sounding bitmaps may correspond to the same sensing responder. For example, L is equal to 2. In this case, the first valid bit in the first SR2SR sounding bitmap and the first valid bit in the second SR2SR sounding bitmap may correspond to the same sensing responder.

[0209] The meanings of other fields not described in Figure 7b may be understood to refer to existing standards. Details will not be described in this specification. It may be further understood that the names, lengths, orders, etc. of the TF sounding responder bitmap, NDPA sounding responder bitmap, and SR2SR sounding bitmap in Figure 7b are merely examples. This is not limited to this embodiment of the present application.

[0210] For example, the TF / NDPA sounding responder bitmap is in units of octets, and the length of the TF / NDPA sounding responder bitmap is:

number

number

number

[0211] In some scenarios, the frame format of the SBP parameters element may be a combination of the frame formats in Figures 7a and 7b. For example, the SBP parameters element may include both an SR2SR sounding responder bitmap and L SR2SR sounding bitmaps. Indeed, for the specific meanings of the SR2SR sounding responder bitmap and the SR2SR sounding bitmap, please refer to the descriptions in Figures 7a and 7b. The details will not be described again in this specification.

[0212] In some possible implementations, whether the first bitmap (e.g., the TF sounding responder bitmap in FIG. 7a and FIG. 7b), the second bitmap (e.g., the NDAP sounding responder bitmap in FIG. 7a and FIG. 7b), and the third bitmap (e.g., the SR2SR sounding responder bitmap in FIG. 7a and FIG. 7b) are present in the SBP parameters element may be determined based on an SBP parameters control field. In other words, the SBP parameters element may further include second indication information, and the second indication information may indicate whether the first indication information is present. For example, the second indication information is located in the SBP parameters control field. In this embodiment of the present application, the second indication information may be set to a preset value (e.g., 1) to indicate that the first indication information is present. It may be understood that in this embodiment of the present application, whether the preset value is 1 or 0 is not limited.

[0213] For example, the first display information includes one or more of the following: a first bitmap, a second bitmap, or a third bitmap. Correspondingly, the second display information may include one or more of the following: a first bitmap present field, a second bitmap present field, or a third bitmap present field. The first bitmap present field may indicate whether a first bitmap is present, the second bitmap present field may indicate whether a second bitmap is present, and the third bitmap present field may indicate whether a third bitmap is present. In this embodiment of the present application, at least one of the first bitmap present field, the second bitmap present field, or the third bitmap present field is set to a preset value (e.g., 1, or the preset value may alternatively be 0).

[0214] Optionally, the SBP parameters control field in the SBP parameters element may further include one or more of the following: third indication information, fourth indication information, or fifth indication information. The third indication information may indicate whether the SBP initiator requests to perform SR2SR sounding in the proxy sensing procedure. The fourth indication information may indicate the number of SR2SR sounding patterns, where one SR2SR sounding pattern corresponds to one or more SR2SR soundings. The fifth indication information may indicate the number of SR2SR soundings corresponding to each SR2SR sounding pattern. When the frame format of the SBP parameters element uses the frame format shown in FIG. 7a, the SBP parameters control field may include the third indication information. When the frame format of the SBP parameters element uses the frame format shown in FIG. 7b, the SBP parameters control field may include the third indication information and, optionally, may further include the fourth and / or fifth indication information. When the frame format of the SBP parameters element uses the frame format shown in Figure 7b, it can be understood that if the third indication information indicates that the SBP initiator does not perform SR2SR sounding in the proxy sensing procedure, the fourth indication information and / or the fifth indication information may be set to a reserved value, or the SBP parameters control field does not include the fourth indication information and / or the fifth indication information.

[0215] 8 is a diagram of a first frame format of an SBP parameters control field according to one embodiment of the present application. The length of the SBP parameters control field shown in FIG. 8 may be two octets or more, for example, three octets or four octets. In this embodiment of the present application, the length of the SBP parameters control field is not limited. As shown in FIG. 8, the SBP parameters control field includes, but is not limited to, one or more of the following: an SR2SR sounding request field, a TF sounding responder bitmap present field, an NDPA sounding responder bitmap present field, an SR2SR sounding responder bitmap present field, a number of SR2SR sounding patterns field, an SR2SR periodicity field, or an SR2SR sounding bitmap present field.

[0216] The SR2SR sounding request field (i.e., the third indication information) is 1 bit long, and this 1 bit indicates whether the SBP initiator requests that SR2SR sounding be performed in the proxy sensing procedure. The TF sounding responder bitmap present field (i.e., the first bitmap present field) and the NDPA sounding responder bitmap present field (i.e., the second bitmap present field) are each represented by using 1 bit to indicate whether a TF / NDPA sounding responder bitmap (i.e., the first bitmap / second bitmap) is present in the SBP parameters element, respectively. The SR2SR sounding responder bitmap present field is represented by using 1 bit, and this 1 bit indicates whether an SR2SR sounding responder bitmap is present in the SBP parameters element. The SR2SR sounding bitmap present field is also represented by using 1 bit, and this 1 bit indicates whether an SR2SR sounding bitmap is present in the SBP parameters element. In some scenarios, the SR2SR sounding responder bitmap present field and the SR2SR sounding bitmap present field may coexist, or only one of the two fields may be present. This is not limited in this embodiment of the present application. The number of SR2SR sounding patterns field (i.e., the fourth indication information) indicates the number of SR2SR sounding patterns, i.e., the value of L. The SR2SR periodicity field (i.e., the fifth indication information) indicates the number of SR2SR soundings corresponding to each SR2SR sounding pattern.If the SR2SR periodicity field indicates that the number of SR2SR soundings corresponding to each SR2SR sounding pattern is T, a total of (L x T) SR2SR soundings are performed. The meanings of other fields not described in Figure 8 may be understood to refer to existing standards, and details will not be described in this specification.

[0217] Optionally, if the SR2SR sounding bitmap present field (third bitmap present field) indicates that the SR2SR sounding bitmap (third bitmap) is not present, the number of SR2SR sounding patterns field (fourth indication information) may be set to a reserved value. If the SR2SR sounding request field (third indication information) indicates that the SBP initiator does not perform SR2SR sounding in the SBP procedure, the value of the SR2SR sounding responder bitmap present field may be 0, indicating that the SR2SR sounding responder bitmap is not present in the SBP parameters element, and / or the value of the SR2SR sounding bitmap present field may be 0, indicating that the SR2SR sounding bitmap is not present in the SBP parameters element.

[0218] It can be understood that the names, lengths, order, etc. of the fields in Figure 8 are merely examples, which are not limiting in this embodiment of the present application.

[0219] In this embodiment of the present application, whether a sensing responder participates in various sensing measurements (e.g., TF / NDPA / SR2SR sounding) is indicated by a bitmap method, which hardly modifies the SBP parameters element, is simple and clear, has low overhead, is easy to implement, and facilitates compatibility with existing protocols.

[0220] Implementation form 2 The first indication information may be realized using fields corresponding to the sensing responders. In one possible implementation, one sensing responder may correspond to one or more of the following: one first field, one second field, or one third field. In this case, the first indication information may include one or more of the following: one first field, one second field, or one third field corresponding to N sensing responders. The first field may indicate whether the sensing responder corresponding to the first field participates in TF sounding, the second field may indicate whether the sensing responder corresponding to the second field participates in NDPA sounding, and the third field may indicate whether the sensing responder corresponding to the third field participates in SR2SR sounding.

[0221] For example, a field may be added to the SBP parameters element, and the field may be used to carry the sensing responder's function parameters, such as the sensing responder's address, the sensing responder's ID, whether to participate in TF sounding, whether to participate in NDPA sounding, or whether to participate in SR2SR sounding. FIG. 9a is a diagram of a third frame format of the SBP parameters element according to an embodiment of the present application. As shown in FIG. 9a, the SBP parameters element may include, but is not limited to, an SBP parameters control field and N sensing responder parameter fields. For example, the length of each sensing responder parameter field may be 8 octets, or may be longer or shorter than 8 octets. In this embodiment of the present application, the length of the sensing responder parameter field is not limited. One sensing responder parameter field carries the function parameters of one sensing responder. In other words, the first indication information may be carried in the sensing responder parameter field in the SBP parameters element.

[0222] A sensing responder parameter field may include, but is not limited to, one or more of the following: a sensing responder address field, a sensing responder ID field, a TF sounding responder field (i.e., the first field), an NDPA sounding responder field (i.e., the second field), or an SR2SR sounding responder field (i.e., the third field). In this specification, a sensing responder address field carries the address of a sensing responder. The TF sounding responder field (i.e., the first field) in a sensing responder parameters field may be 1 bit in length, and the 1 bit indicates whether the corresponding sensing responder (the sensing responder indicated by the sensing responder address field in the same sensing responder parameters field) participates in TF sounding. Similarly, the NDPA sounding responder field (i.e., the second field) within one sensing responder parameters field may be 1 bit in length, and that 1 bit indicates whether the corresponding sensing responder (the sensing responder indicated by the sensing responder address field within the same sensing responder parameters field) participates in NDPA sounding.Alternatively, the length of the SR2SR sounding responder field (i.e., the third field) may be 1 bit, and the 1 bit indicates whether the corresponding sensing responder (the sensing responder indicated by the sensing responder address field located in the same sensing responder parameters field) participates in SR2SR sounding. The meanings of other fields not described in FIG. 9a may be understood to refer to existing standards. Details will not be described in this specification. It may further be understood that the names, lengths, order, etc. of the fields in FIG. 9a are merely examples, and are not limited in this embodiment of the present application.

[0223] Optionally, because the roles of sensing responders in SR2SR sounding are not fixed, the length of the third field may be L bits or more, and the third field corresponds to L SR2SR sounding patterns, where L is an integer greater than or equal to 1. Bits in the third field may indicate whether the sensing responders corresponding to the third field participate in SR2SR sounding, respectively, corresponding to the L SR2SR sounding patterns. One SR2SR sounding pattern corresponds to one or multiple SR2SR soundings. An SR2SR sounding pattern may describe the transmitter and receiver of a sensing PPDU (e.g., NDP) in SR2SR sounding. Alternatively, one SR2SR sounding pattern may describe a group of roles in SR2SR sounding.

[0224] In some scenarios, one bit corresponds to one SR2SR sounding pattern. When the length of the third field is longer than L bits, the length of the valid bits in the third field is L, and one valid bit in the third field corresponds to one SR2SR sounding pattern. In this case, the meaning of the third field may be further explained as follows: One valid bit in the third field indicates whether the sensing responder corresponding to the third field participates in the SR2SR sounding corresponding to the SR2SR sounding pattern corresponding to that valid bit. It can be understood that when the length of the third field is equal to L bits, this indicates that all bits in the third field are valid bits. In some other scenarios, multiple bits correspond to one SR2SR sounding pattern. For example, all two bits or all three bits correspond to one SR2SR sounding pattern. The correspondence between the values ​​of the multiple bits and the SR2SR sounding pattern may be predefined or preconfigured. This is not limited to this embodiment of the present application.

[0225] For example, Figure 9b is a diagram of a fourth frame format of an SBP parameters element according to one embodiment of the present application. As shown in Figure 9b, the SBP parameters element may include, but is not limited to, an SBP parameters control field and N sensing responder parameters fields. For example, the length of each sensing responder parameter field may be 10 octets, or may be longer or shorter than 10 octets. In this embodiment of the present application, the length of the sensing responder parameter field is not limited. One sensing responder parameter field carries the function parameters of one sensing responder. In other words, the first indication information may be carried in the sensing responder parameter field in the SBP parameters element.

[0226] A sensing responder parameter field may include, but is not limited to, one or more of the following: a sensing responder address field, a sensing responder ID field, a TF sounding responder field (i.e., the first field), an NDPA sounding responder field (i.e., the second field), or an SR2SR sounding measurement bitmap (i.e., the third field). In this specification, a sensing responder address field carries the address of a sensing responder. The TF sounding responder field (i.e., the first field) in a sensing responder parameters field may be 1 bit in length, and the 1 bit indicates whether the corresponding sensing responder (the sensing responder indicated by the sensing responder address field in the same sensing responder parameters field) participates in TF sounding. Similarly, the NDPA sounding responder field (i.e., the second field) within one sensing responder parameters field may be 1 bit in length, and that 1 bit indicates whether the corresponding sensing responder (the sensing responder indicated by the sensing responder address field within the same sensing responder parameters field) participates in NDPA sounding.The SR2SR sounding measurement bitmap (i.e., the third field) may indicate whether the corresponding sensing responder (the sensing responder indicated by the sensing responder address field in the same sensing responder parameters field) participates in SR2SR sounding, respectively corresponding to the L SR2SR sounding patterns. The meanings of other fields not described in FIG. 9b may be understood to refer to existing standards. Details will not be described herein. It may further be understood that the names, lengths, order, etc. of the fields in FIG. 9b are merely examples, and are not limited in this embodiment of the present application.

[0227] For example, assume that the length of the SR2SR sounding measurement bitmap is 16 bits, L is equal to 10, the first 10 bits of the SR2SR sounding measurement bitmap are valid bits, and one valid bit corresponds to one SR2SR sounding pattern. In this case, when the first 10 bits of the SR2SR sounding measurement bitmap are 1110011010 (an example where 1 indicates participation and 0 indicates non-participation is used herein), this indicates that the corresponding sensing responder participates in SR2SR soundings corresponding to the first, second, third, sixth, seventh, and ninth SR2SR sounding patterns, respectively, and does not participate in SR2SR soundings corresponding to the fourth, fifth, eighth, and tenth SR2SR sounding patterns, respectively, and the remaining 6 bits of the SR2SR sounding measurement bitmap may be set to reserved values.

[0228] In some scenarios, the frame format of the SBP parameters element may be a combination of the frame formats in Figures 9a and 9b. For example, the SBP parameters element may include both the SR2SR sounding responder field and the SR2SR sounding measurement bitmap. Indeed, for the specific meanings of the SR2SR sounding responder field and the SR2SR sounding measurement bitmap, please refer to the descriptions in Figures 9a and 9b. The details will not be described again in this specification.

[0229] In some possible implementations, the SBP parameter control field shown in FIG. 9a may include third indication information. The SBP parameter control field shown in FIG. 9b may include third indication information, optionally further include fourth indication information, and optionally further include fifth indication information. In this implementation, one sensing responder corresponds to one first field, one second field, and one third field. The third indication information may indicate whether the SBP initiator requests to perform SR2SR sounding in the surrogate sensing procedure. The fourth indication information may indicate the number of SR2SR sounding patterns, where one SR2SR sounding pattern corresponds to one or more SR2SR soundings. The fifth indication information may indicate the number of SR2SR soundings corresponding to each SR2SR sounding pattern. It may be understood that if the third indication information indicates that the SBP initiator does not perform SR2SR sounding in the proxy sensing procedure, the fourth indication information and / or the fifth indication information may be set to a reserved value, or the SBP parameters control field does not include the fourth indication information and / or the fifth indication information. It may be further understood that if the third indication information indicates that the SBP initiator does not perform SR2SR sounding in the proxy sensing procedure, the SR2SR sounding measurement bitmap or the SR2SR sounding responder field included in the sensing responder parameters field may be set to a reserved value to indicate that the SBP initiator does not participate in SR2SR sounding.

[0230] FIG. 10 is a diagram of a second frame format of an SBP parameters control field according to an embodiment of the present application. The length of the SBP parameters control field shown in FIG. 10 may be two octets or more, for example, three or four octets. In this embodiment of the present application, the length of the SBP parameters control field is not limited. As shown in FIG. 10, the SBP parameters control field includes, but is not limited to, one or more of the following: an SR2SR sounding request field, a number of SR2SR sounding patterns field, or an SR2SR periodicity field. For specific meanings of the SR2SR sounding request field (i.e., the third indication information), the number of SR2SR sounding patterns field (i.e., the fourth indication information), and the SR2SR periodicity field (i.e., the fifth indication information), please refer to the above description (FIG. 8). Details will not be described again in this specification. The meanings of other fields not described in Figure 10 may be understood to refer to existing standards. Details will not be described in this specification. It may be further understood that the names, lengths, and orders of the fields in Figure 10 are merely examples, which are not limited in this embodiment of the present application.

[0231] Optionally, the SBP parameter control field in the SBP parameters element may further include second indication information (not shown in FIG. 10), and the second indication information may indicate whether the first indication information is present. In other words, whether the sensing responder parameters field includes a first field (e.g., the TF sounding responder field in FIGS. 9a and 9b), a second field (e.g., the NDPA sounding responder field in FIGS. 9a and 9b), or a third field (e.g., the SR2SR sounding responder field in FIG. 9a or the SR2SR sounding measurement bitmap in FIG. 9b) may be determined based on the SBP parameters control field.

[0232] For example, the second indication information may include one or more of the following: a TF sounding responder present field, an NDPA sounding responder present field, an SR2SR sounding responder present field, or an SR2SR sounding measurement bitmap present field. The TF sounding responder present field may indicate whether a TF sounding responder field is present in the sensing responder parameters field. The NDPA sounding responder present field may indicate whether an NDPA sounding responder field is present in the sensing responder parameters field. The SR2SR sounding measurement bitmap present field may indicate whether an SR2SR sounding responder field is present in the sensing responder parameters field. The SR2SR sounding responder present field may indicate whether an SR2SR sounding responder field is present in the sensing responder parameters field. In some scenarios, both the SR2SR sounding responder present field and the SR2SR sounding measurement bitmap present field may be present, or only one of the two fields may be present. This is not limited in this embodiment of the present application.

[0233] In this embodiment of the present application, at least one of the TF sounding responder present field, the NDPA sounding responder present field, the SR2SR sounding responder present field, or the SR2SR sounding measurement bitmap present field is set to a preset value (e.g., 1) to indicate presence.

[0234] For example, if the TF / NDPA sounding responder present field indicates that a TF / NDPA sounding responder field is present in the sensing responder parameters field, then each sensing responder parameters field includes a TF / NDPA sounding responder field. Conversely, if the TF / NDPA sounding responder present field indicates that a TF / NDPA sounding responder field is not present in the sensing responder parameters field, then a TF / NDPA sounding responder field is not present in each sensing responder parameters field. The SR2SR sounding measurement bitmap present field and the SR2SR sounding responder present field are similar and are not enumerated here.

[0235] In another possible implementation, one sensing responder may correspond to one fourth field. In this case, the first indication information may include fourth fields corresponding to N sensing responders, and each fourth field indicates whether the sensing responder corresponding to the fourth field participates in TF sounding, NDPA sounding, or SR2SR sounding. For example, the length of the fourth field is 2 bits. When the value of the fourth field is 01 (binary), it indicates that the sensing responder corresponding to the fourth field participates in TF sounding; when the value of the fourth field is 10 (binary), it indicates that the sensing responder corresponding to the fourth field participates in NDPA sounding; when the value of the fourth field is 11 (binary), it indicates that the sensing responder corresponding to the fourth field participates in SR2SR sounding; or when the value of the fourth field is 00 (binary), it indicates that it is reserved. It can be understood that in this embodiment of the present application, the mapping relationship between the value of the fourth field and TF sounding, NDPA sounding, and SR2SR sounding is not limited. It can be further understood that with the development of the standard, the value of M can be greater than or less than 2 bits.

[0236] In this embodiment of the present application, a field (e.g., sensing responder parameters field) is designed for each sensing responder, and the field indicates one sensing responder and whether the sensing responder participates in various sensing measurements (e.g., TF / NDPA / SR2SR sounding). The meaning is clear and easy to understand.

[0237] In one possible implementation, the SBP parameters element (e.g., as shown in any one of FIG. 7a, FIG. 7b, FIG. 9a, or FIG. 9b) may further include sixth indication information, and the sixth indication information may indicate whether the N sensing responders specified by the SBP initiator must satisfy the indication of the first indication information. For example, the sixth indication information is located in the SBP parameters control field (e.g., FIG. 8 or FIG. 10).

[0238] Optionally, if the SBP request frame carries sixth indication information, the sixth indication information indicates that N sensing responders designated by the SBP initiator must satisfy the indication of the first indication information, the SBP responders may satisfy the indication of the first indication information in the SBP request frame, and the SBP responders may indicate in the SBP response frame that the SBP request is accepted. If the SBP responders cannot satisfy the indication of the first indication information in the SBP request frame, the SBP responders may indicate in the SBP response frame that the SBP request is rejected and may carry an SBP parameters element in the SBP response frame to provide recommended measurement parameters, for example, the first indication information. Alternatively, if the SBP responder finds that it cannot satisfy the indication of the first indication information in the SBP request frame during the set-up SBP procedure, it may send an SBP termination frame to the SBP initiator to terminate the current SBP procedure, and the SBP responder may carry an SBP parameters element in the SBP termination frame to provide recommended measurement parameters. The SBP initiator may decide whether to retransmit the SBP request frame based on the recommended measurement parameters.

[0239] In this embodiment of the present application, the SBP initiator configures the sensing measurements of a specific TB type (TF sounding, NDPA sounding, SR2SR sounding) in which the sensing responder designated by the SBP initiator participates during the SBP setup phase. This enables the SBP initiator to have the ability to configure measurement parameters for the sensing responder, thereby not only helping the SBP initiator control and manage the SBP sensing procedure, but also helping the SBP initiator analyze the sensing measurement reports, thereby improving the sensing performance.

[0240] Embodiment 2 Embodiment 2 of the present application mainly describes how to indicate the role of the sensing responder in the SBP setup phase.

[0241] Embodiment 2 of the present application may be implemented separately or in combination with embodiment 1, which is not limited in the present application.

[0242] 11 is a second schematic flowchart of the information display method in WLAN sensing according to an embodiment of the present application. As shown in FIG. 11, the information display method in WLAN sensing includes but is not limited to the following steps:

[0243] S201: An SBP initiator sends a proxy sensing request frame, where the proxy sensing request frame includes addresses of N sensing responders, where the address of one sensing responder is used to identify one sensing responder, and the proxy sensing request frame further includes role indication information, where the role indication information indicates the roles of the N sensing responders in a sensing measurement instance, and the roles include any one of the following: sensing transmitter, sensing receiver, and sensing transmitter and sensing receiver, where N is an integer greater than or equal to 1.

[0244] In response, the SBP responder receives a proxy sensing request frame.

[0245] S202: The SBP responder transmits a proxy sensing response frame.

[0246] In response, the SBP initiator receives a proxy sensing response frame.

[0247] Optionally, during the SBP setup phase, the SBP initiator sends an SBP request frame to the SBP responder, where the SBP request frame may be used to request the SBP responder to act as a proxy for the SBP initiator for sensing measurements. In other words, the SBP request frame allows a non-AP STA to invoke the SBP procedure. After receiving the SBP request frame, the SBP responder replies with an SBP response frame. The SBP response frame may be used to accept or reject the SBP initiator's request. The frame format of the SBP request frame is shown in FIG. 6a, and the frame format of the SBP response frame is shown in FIG. 6b. Details will not be described again in this specification.

[0248] In one possible implementation, the SBP request frame may carry measurement parameters for the sensing responder, such as role indication information, which may indicate the role of the sensing responder in the sensing measurement instance. If the SBP responder can fulfill the role indicated in the SBP request frame, the SBP responder may indicate in the SBP response frame that the SBP request is accepted. If the SBP responder cannot fulfill the role indicated in the SBP request frame, the SBP responder may indicate in the SBP response frame that the SBP request is rejected. Optionally, if the SBP responder rejects the SBP request, the SBP responder may further provide a recommended role in the SBP response frame.

[0249] The roles in this embodiment of the present application may include one or more of the following: sensing transmitter (abbreviated as TX), sensing receiver (abbreviated as RX), and sensing transmitter and sensing receiver (abbreviated as TX and RX).

[0250] In one possible implementation, the role indication information may be located in an SBP parameters element. Optionally, the SBP parameters element further includes addresses of N sensing responders, where the address of one sensing responder is used to identify one sensing responder. In this case, the role indication information may specifically indicate the roles of the N sensing responders identified by the addresses of the N sensing responders in the sensing measurement instance. In other words, the role indication information indicates whether the role of each sensing responder in the sensing measurement instance is TX, RX, or both TX and RX.

[0251] In another possible implementation, the role indication information may indicate one or more of the following: in a sensing measurement instance, the sensing responder acts as a sensing transmitter (TX), the sensing responder acts as a sensing receiver (RX), or the sensing responder acts as both a sensing transmitter and a sensing receiver (TX and RX).

[0252] The following describes the SBP parameters element in detail.

[0253] Implementation form 1 Optionally, the role indication information may be implemented using a bitmap, and bits in the role indication information may indicate the roles of the N sensing responders in the sensing measurement instance. Specifically, a role bitmap may be added to the SBP parameters element to carry the role indication information. FIG. 12 is a diagram of a fifth frame format of the SBP parameters element according to an embodiment of the present application. As shown in FIG. 12 , the SBP parameters element may include, but is not limited to, a role bitmap. The role bitmap (i.e., role indication information) may indicate which of the sensing transmitter (TX), sensing receiver (RX), and sensing transmitter and sensing receiver (TX and RX) is the role of each sensing responder in the sensing measurement instance. The meanings of other fields not described in FIG. 12 may be understood to refer to existing standards. Details will not be described herein. It may be further understood that the names, lengths, order, etc. of the role bitmap in FIG. 12 are merely examples, and are not limited in this embodiment of the present application. The following explains the two display methods of role bitmap by using examples.

[0254] For example, each sensing responder may correspond to two bits. In this case, the role bitmap is:

number

number

[0255] In another example, three prefix bits indicate whether three roles, TX, RX, and TX and RX, are present. In this case, each sensing responder may correspond to one bit. For example, the prefix bits may be 110 (binary) to indicate that only TX and RX are present, and the prefix bits may be 111 (binary) to indicate that TX, RX, and TX and RX are present. If N is equal to 8, the role bitmap may be 110 When the role bitmap is 11011110, the first 3 bits 110 indicate that the sensing responder acts as TX only, RX only, and neither TX nor RX, and the last 8 bits are separated by "0" (including 0), and the number of 0 indicates the number of roles, so 110 / 11110 indicates that sensing responders 1, 2, and 3 are TX in the sensing measurement instance, and sensing responders 4, 5, 6, 7, and 8 are RX in the sensing measurement instance. 111 When it is 11010110, the first three bits 111 indicate that the sensing responder acts as TX only, RX only, and TX and RX, and the last eight bits are also separated by "0" (including 0), and the number of 0 indicates the number of roles, so 110 / 10 / 110 indicates that sensing responders 1, 2, and 3 are TX in the sensing measurement instance, sensing responders 4 and 5 are RX in the sensing measurement instance, and sensing responders 6, 7, and 8 are TX and RX in the sensing measurement instance. It can be understood that in addition to the first three prefix bits, other bits in the role bitmap are not necessarily separated by 0, but may alternatively be separated by 1. This is not limited in this embodiment of the present application. In this case, if the role bitmap is

number

number

[0256] In this embodiment of the present application, the role of the sensing responder is represented in a bitmap manner, which reduces overhead, is simple to implement, and facilitates compatibility with existing protocols.

[0257] Optionally, the role indication information is implemented using three fields. The role indication information may indicate which of the N sensing responders acts as a sensing transmitter (TX), which sensing responder acts as a sensing receiver (RX), and which sensing responder acts as both a sensing transmitter and a sensing receiver (TX and RX). Figure 13 is a diagram of a sixth frame format of the SBP parameters element according to an embodiment of the present application. As shown in Figure 13, the SBP parameters element may include one or more of the following, but is not limited to: a number of TX responders field, a number of RX responders field, and a number of TX and RX responders field. When the value of the number of TX responders field is P, it indicates that the 1st through Pth sensing responders among the N sensing responders act as sensing transmitters (TX) in the sensing measurement instance. When the value of the number of RX responders field is Q, it indicates that the (P+1)th through (P+Q)th sensing responders among the N sensing responders act as sensing receivers (RX) in the sensing measurement instance. When the value of the number of TX and RX responders field is K, it indicates that the (P+Q+1)th through (P+Q+K)th sensing responders among the N sensing responders act as both sensing transmitters and sensing receivers (TX and RX) in the sensing measurement instance. The value of (P+Q+K) can be less than or equal to N.For example, if the number of TX responders field, the number of RX responders field, and the number of TX and RX responders field are present, the length of each of the number of TX responders field, the number of RX responders field, and the number of TX and RX responders field is:

number

[0258] The meanings of other fields not described in Figure 13 may be understood to refer to existing standards. Details will not be described in this specification. It may be further understood that the names, lengths, and orders of the fields in Figure 13 are merely examples. This is not limited to this embodiment of the present application.

[0259] In this embodiment of the present application, the number P of sensing responders acting as TX, the number Q of sensing responders acting as RX, and the number K of sensing responders acting as TX and RX are indicated by fields, i.e., which sensing responders act as TX, which sensing responders act as RX, and which sensing responders act as TX and RX. This requires only a small number of bits, reduces overhead, and makes it easy to understand. In addition, additional information is provided, i.e., the number of sensing responders acting in each role is provided.

[0260] In some possible implementations, whether role indication information is present in the SBP parameters element may be determined based on an SBP parameters control field. In this case, the SBP parameters element may further include role presence indication information, and the role presence indication information may indicate whether the role indication information is present. For example, the role presence indication information is located in the SBP parameters control field. In some scenarios, for example, when this embodiment of the present application is implemented independently, the role presence indication information is set to a preset value (e.g., 1, and the preset value may alternatively be 0) to indicate that the role indication information is present. In some other scenarios, for example, when this embodiment of the present application is implemented in combination with embodiment 1, the role presence indication information may be set randomly. This is not limited thereto.

[0261] Optionally, the SBP parameters control field may further include mandatory role indication information, which may indicate whether the N sensing responders are required to satisfy the indication in the role indication information. It may be understood that if the SBP request frame carries mandatory role indication information, the mandatory role indication information indicates that the N sensing responders specified by the SBP initiator are required to satisfy the indication in the role indication information, the SBP responder may satisfy the indication in the role indication information in the SBP request frame, and the SBP responder may indicate in the SBP response frame that the SBP request is accepted. If the SBP responder cannot satisfy the indication in the role indication information in the SBP request frame, the SBP responder may indicate in the SBP response frame that the SBP request is rejected and may include an SBP parameters element in the SBP response frame to provide recommended role indication information. Alternatively, when an SBP responder finds during the setup of an SBP procedure that it cannot satisfy the role indication information in an SBP request frame, it carries an SBP parameters element in an SBP termination frame to provide recommended role indication information. The SBP initiator may decide whether to retransmit the SBP request frame based on the recommended role indication information.

[0262] FIG. 14 is a diagram of a third frame format of an SBP parameters control field according to an embodiment of the present application. The length of the SBP parameters control field shown in FIG. 14 may be equal to two octets. In this embodiment of the present application, the length of the SBP parameters control field is not limited. As shown in FIG. 14, the SBP parameters control field includes, but is not limited to, one or more of the following: a role indication field or a role mandatory field. The role indication field (i.e., role presence indication information) may be 1 bit long, and this 1 bit indicates whether role indication information is present in the SBP parameters element. The role mandatory field may be 1 bit long, and this 1 bit indicates whether the sensing responder must satisfy the indication (or role setting) of the role indication information. The meanings of other fields not described in FIG. 14 may be understood to refer to existing standards. Details will not be described herein. It may be further understood that the names, lengths, and arrangement order of the role indication field and role mandatory field in FIG. 14 are merely examples, and this is not limited in this embodiment of the present application.

[0263] Implementation form 2 The role indication information may be implemented using a field corresponding to the sensing responder. For example, one sensing responder corresponds to one role field, and the role field is used to carry the role indication information. FIG. 15 is a diagram of a seventh frame format of an SBP parameters element according to an embodiment of the present application. As shown in FIG. 15, the SBP parameters element may include, but is not limited to, an SBP parameters control field and N sensing responder parameters fields. For example, the length of each sensing responder parameter field may be 8 octets, or may be longer or shorter than 8 octets. In this embodiment of the present application, the length of the sensing responder parameter field is not limited. One sensing responder parameter field may include, but is not limited to, one or more of the following: a sensing responder address field, a sensing responder ID field, and a role field. In this specification, one sensing responder address field carries the address of one sensing responder. The length of the role field (i.e., role indication information) may be 2 bits, and the 2 bits may indicate which of the sensing transmitter (TX), sensing receiver (RX), and sensing transmitter and sensing receiver (TX and RX) is the role of the corresponding sensing responder in the sensing measurement instance (the sensing responder indicated by the sensing responder address field in the same sensing responder parameters field). It can be understood that the names, lengths, orders, etc. of the fields in Figure 15 are merely examples, and are not limited in this embodiment of the present application.

[0264] Optionally, the SBP parameters control field may further include one or more of the following: role presence indication information or mandatory role indication information. The role presence indication information may indicate whether role indication information is present. The mandatory role indication information may indicate whether N sensing responders are required to satisfy the indication of the role indication information. For example, the length of the SBP parameters control field in FIG. 15 may be 2 octets, and the frame format of the SBP parameters control field may be shown in FIG. 14. It may be understood that if the role indication field in FIG. 14 indicates that there is no role indication information, the role field in FIG. 15 may be set to a reserved value to indicate that there is no role.

[0265] In this embodiment of the present application, a field (e.g., sensing responder parameters field) is designed for each sensing responder, and the field indicates one sensing responder and the role of the sensing responder. In this way, the meaning of the field is clear and easy to understand, and the SBP responder can know the complete information about the sensing responder in the analysis procedure.

[0266] In some scenarios, when this embodiment of the present application is implemented in combination with Embodiment 1, Implementation Form 1 of this embodiment of the present application may be combined with Implementation Form 1 of Embodiment 1. For example, the SBP parameters element may include the fields in FIG. 7a (or FIG. 7b) and FIG. 12 (or FIG. 13), and the SBP parameters control field may include the fields in FIG. 8 and FIG. 14. Implementation Form 2 of this embodiment of the present application may be combined with Implementation Form 2 of Embodiment 1. For example, the sensing responder parameters field may include the fields in FIG. 9a (or FIG. 9b) and FIG. 15, and the SBP parameters control field may include the fields in FIG. 10 and FIG. 14. Details will not be described again in this specification.

[0267] In this embodiment of the present application, the SBP initiator sets the role of the sensing responder (TX, RX, or TX and RX) during the SBP setup phase, which enables the SBP initiator to have the ability to set measurement parameters for the sensing responder, which not only helps the SBP initiator control and manage the SBP sensing procedure, but also helps the SBP initiator analyze the sensing measurement report.

[0268] Embodiment 3 The third embodiment of the present application is an example in which the first and second embodiments are implemented in combination.

[0269] It can be understood that embodiment 1 provides a solution for configuring a sensing measurement of a specific TB type (TF sounding, NDPA sounding, SR2SR sounding) in which a sensing responder participates during the SBP setup phase, and embodiment 2 provides a solution for configuring the role of the sensing responder (TX, RX, or TX and RX) during the SBP setup phase. Embodiment 1 and embodiment 2 can be used together. For a sensing responder participating in TF sounding, the role of the sensing responder in a sensing measurement instance is TX. For a sensing responder participating in NDPA sounding, the role of the sensing responder in a sensing measurement instance is RX. In other words, for a sensing responder participating in TF sounding or NDPA sounding, the role of the sensing responder in a sensing measurement instance is fixed. For a sensing responder participating in SR2SR sounding, the role of the sensing responder in a sensing measurement instance is not fixed. For example, a sensing responder participating in an SR2SR sounding may be a TX in the first SR2SR measurement instance and an RX in the next SR2SR measurement instance.

[0270] Therefore, in this embodiment of the present application, for different SR2SR measurement instances, it is indicated whether a sensing responder participates in the SR2SR measurement instance and the role of the sensing responder in the SR2SR measurement instance.

[0271] In detail, Figure 16 is a third schematic flowchart of an information display method in WLAN sensing according to an embodiment of the present application. As shown in Figure 16, the information display method in WLAN sensing includes but is not limited to the following steps:

[0272] S301: An SBP initiator transmits a proxy sensing request frame, where the proxy sensing request frame includes addresses of N sensing responders, where the address of one sensing responder is used to identify one sensing responder, and the proxy sensing request frame further includes first indication information and role indication information, where the first indication information indicates whether the N sensing responders participate in SR2SR sounding, and the role indication information indicates the roles of the sensing responders participating in the SR2SR sounding in the sensing measurement instance, where N is an integer greater than or equal to 1. The role includes any one of the following: a sensing transmitter, a sensing receiver, or a sensing transmitter and a sensing receiver.

[0273] In response, the SBP responder receives a proxy sensing request frame.

[0274] S302: The SBP responder transmits a proxy sensing response frame.

[0275] In response, the SBP initiator receives a proxy sensing response frame.

[0276] Optionally, for the implementation of Step S301 and Step S302 in this embodiment of the present application, please refer to the implementation of Step S101 and Step S102 in Embodiment 1, or refer to the implementation of Step S201 and Step S202 in Embodiment 2. Details will not be described again in this specification.

[0277] Optionally, the first indication information may indicate whether each of the N sensing responders participates in the SR2SR sounding, or may indicate the sensing responders participating in the SR2SR sounding. The role indication information may indicate which of the sensing transmitter (TX), the sensing receiver (RX), and the sensing transmitter and sensing receiver (TX and RX) is the role of the sensing responder participating in the SR2SR sounding in the sensing measurement instance. For example, for an implementation form of the first indication information, please refer to the related description in embodiment 1. The details will not be described again in this specification. For example, for an implementation form of the role indication information, please refer to the related description in embodiment 2. The details will not be described again in this specification.

[0278] In one possible implementation, the first indication information may be implemented using a bitmap, with one valid bit corresponding to one sensing responder. The role indication information may also be implemented using a bitmap. In this embodiment of the present application, one sensing responder in one SR2SR sounding pattern can only appear in one role. In other words, in one SR2SR sounding pattern, the sensing responder can be either TX or RX, but cannot be both TX and RX. Therefore, one valid bit may represent the role of one sensing responder. FIG. 17 is a diagram of an eighth frame format of the SBP parameters element according to one embodiment of the present application. As shown in FIG. 17, the SBP parameters element may include, but is not limited to, L SR2SR sounding bitmaps (first indication information) and L SR2SR role bitmaps (role indication information). The value of L may be predefined, pre-negotiated, pre-configured, or indicated in the SBP parameters control field in the SBP parameters element (for a specific indication method, please refer to the related description in embodiment 1, and the details will not be described again in this specification). One SR2SR sounding bitmap corresponds to one SR2SR sounding pattern, and one SR2SR sounding bitmap may indicate which sensing responders participate in SR2SR sounding and which sensing responders do not participate in SR2SR sounding in one SR2SR sounding pattern. One SR2SR role bitmap also corresponds to one SR2SR sounding pattern, and one SR2SR role bitmap may indicate the role of the sensing responders participating in SR2SR sounding in one SR2SR sounding pattern. The meanings of other fields not described in FIG. 17 may be understood to refer to existing standards.The details will not be described herein. It can be further understood that the names, lengths, order, etc. of the fields in Figure 17 are only examples, which are not limited in this embodiment of the present application.

[0279] For example, N is equal to 8. Assume that the value of the first SR2SR sounding bitmap is 10011010, which indicates that sensing responders 1, 4, 5, and 7 participate in the SR2SR sounding corresponding to the first SR2SR sounding pattern. In this case, the roles of the four sensing responders 1, 4, 5, and 7, i.e., TX or RX, need to be indicated in the SR2SR role bitmap. Assume that the first 4 bits in the SR2SR role bitmap are valid bits, and the other bits are set to reserved values. For example, 1 indicates TX, and 0 indicates RX. If the SR2SR role bitmap is 1000xxxx (where "xxxx" indicates a reserved value), it indicates that sensing responder 1 is TX, and sensing responders 4, 5, and 7 are RX. It can be understood that whether 1 or 0 represents TX is not limited in this embodiment of the present application.

[0280] Optionally, the SBP parameters element may further include one or more of the following: second indication information, role presence indication information, third indication information, fourth indication information, fifth indication information, or mandatory role indication information. The second indication information may indicate whether the first indication information exists. In this embodiment of the present application, the second indication information is set to a preset value (e.g., 1) to indicate that the first indication information exists. The role presence indication information may indicate whether the role indication information exists. In this embodiment of the present application, the role presence indication information is also set to a preset value (e.g., 1) to indicate that the role indication information exists. The third indication information may indicate whether the SBP initiator requests to perform SR2SR sounding in the surrogate sensing procedure. In this embodiment of the present application, the third indication information is also set to a preset value (e.g., 1) to indicate that the SBP initiator requests to perform SR2SR sounding in the surrogate sensing procedure. The fourth indication information may indicate the number of SR2SR sounding patterns, i.e., the value of L. The fifth indication information may indicate the number of SR2SR soundings corresponding to each SR2SR sounding pattern. The required role indication information may indicate whether a sensing responder participating in SR2SR sounding must satisfy the indication of the role indication information.

[0281] For example, Figure 18 is a diagram of a fourth frame format of an SBP parameters control field according to one embodiment of the present application. The length of the SBP parameters control field shown in Figure 18 may be longer than two octets, for example, three or four octets. In this embodiment of the present application, the length of the SBP parameters control field is not limited. As shown in Figure 18, the SBP parameters control field includes one or more of the following, but is not limited to: an SR2SR sounding request field (i.e., third indication information), a number of SR2SR sounding patterns field (i.e., fourth indication information), an SR2SR sounding bitmap present field (i.e., second indication information), an SR2SR role bitmap present field (i.e., role indication information), an SR2SR role mandatory field (i.e., mandatory role indication information), or an SR2SR periodicity field (i.e., fifth indication information). The SR2SR role bitmap present field indicates whether the SR2SR role bitmap exists, and the SR2SR role mandatory field indicates whether the sensing responder participating in the SR2SR sounding must satisfy the indication of the SR2SR role bitmap. For the meanings of other fields, please refer to the relevant descriptions in embodiment 1 and embodiment 2. The details will not be described again in this specification. It can be understood that the names, lengths, order, etc. of the fields in FIG. 18 are merely examples, and are not limited to this embodiment of the present application.

[0282] Optionally, if the SBP parameters element of the SBP request frame carries mandatory role indication information (e.g., an SR2SR role mandatory field), the mandatory role indication information indicates that sensing responders participating in the SR2SR sounding must fulfill the indication in the role indication information (e.g., an SR2SR role bitmap), the SBP responder can fulfill the indication in the role indication information in the SBP request frame, and the SBP responder may indicate in the SBP response frame that the SBP request is accepted. If the SBP responder cannot fulfill the indication in the role indication information in the SBP request frame, the SBP responder may indicate in the SBP response frame that the SBP request is rejected and may carry an SBP parameters element in the SBP response frame to provide a recommended role. Alternatively, after the SBP responder indicates in the SBP response frame that the SBP request is rejected, the SBP responder carries an SBP parameters element in the SBP termination frame to provide a recommended role. The SBP initiator may decide whether to retransmit the SBP request frame based on the recommended role.

[0283] In this embodiment of the present application, whether a sensing responder participates in SR2SR sounding and the role of the sensing responder participating in SR2SR sounding in a sensing measurement instance are indicated in a bitmap manner, which hardly modifies the SBP parameters element, is simple and clear, and is easy to understand and implement.

[0284] In another possible implementation, the first indication information may be implemented using a field corresponding to the sensing responder, and the role indication information may also be implemented using a field corresponding to the sensing responder. In this embodiment of the present application, one sensing responder in one SR2SR sounding pattern can only appear in one role. In other words, in one SR2SR sounding pattern, the sensing responder can be either TX or RX, but cannot be both TX and RX. Therefore, one significant bit may represent the role of one sensing responder. FIG. 19 is a diagram of a ninth frame format of an SBP parameters element according to an embodiment of the present application. As shown in FIG. 19, the SBP parameters element may include, but is not limited to, an SBP parameters control field and N sensing responder parameters fields. For example, the length of each sensing responder parameters field may be 12 octets, or may be longer or shorter than 12 octets. In this embodiment of the present application, the length of the sensing responder parameters field is not limited. One sensing responder parameter field carries the function parameters of one sensing responder. In other words, both the first indication information and the role indication information may be carried in the sensing responder parameters field in the SBP parameters element.

[0285] One sensing responder parameter field may include, but is not limited to, one or more of the following: a sensing responder address field, a sensing responder ID field, an SR2SR sounding measurement bitmap (i.e., first indication information), and an SR2SR role measurement bitmap (i.e., role indication information). In this specification, one sensing responder address field carries the address of one sensing responder. Both the length of the SR2SR sounding measurement bitmap and the length of the SR2SR role measurement bitmap are equal to or greater than L bits. One significant bit in the SR2SR sounding measurement bitmap corresponds to one SR2SR sounding pattern, and one SR2SR sounding pattern corresponds to one or more SR2SR soundings. An SR2SR sounding pattern may describe the transmitter and receiver of a sensing PPDU (e.g., NDP) in SR2SR sounding, or one SR2SR sounding pattern may describe a group of roles in SR2SR sounding. The SR2SR sounding measurement bitmap may indicate whether a sensing responder indicated by a sensing responder address field participates in SR2SR sounding, respectively, corresponding to L SR2SR sounding patterns. The SR2SR role measurement bitmap may indicate the role of a sensing responder indicated by a sensing responder address field in SR2SR sounding.

[0286] For example, it is assumed that L is equal to 8 and the first L bits of the SR2SR sounding measurement bitmap are valid bits. When the value of the first 8 bits of the SR2SR sounding measurement bitmap is 10011010 (an example where 1 indicates participation and 0 indicates non-participation is used herein), this indicates that the sensing responder indicated by the sensing responder address field participates in SR2SR soundings corresponding to the first, fourth, fifth, and seventh SR2SR sounding patterns, respectively, and does not participate in SR2SR soundings corresponding to the second, third, sixth, and eighth SR2SR sounding patterns, respectively, and the remaining bits of the SR2SR sounding measurement bitmap may be set to reserved values. In this case, the SR2SR role measurement bitmap must indicate the role of the sensing responder indicated by the sensing responder address field in SR2SR soundings corresponding to the first, fourth, fifth, and seventh SR2SR sounding patterns, i.e., TX or RX. In the SR2SR role measurement bitmap, it is assumed that the first 4 bits are valid bits and the other bits are set to reserved values. For example, 1 indicates TX and 0 indicates RX. If the SR2SR role measurement bitmap is 1000xxxx (where "xxxx" indicates a reserved value), it indicates that the sensing responder indicated by the sensing responder address field is TX in the SR2SR sounding corresponding to the first SR2SR sounding pattern, and the corresponding sensing responder is RX in the SR2SR sounding corresponding to the fourth, fifth, and seventh SR2SR sounding patterns. It can be understood that in this embodiment of the present application, whether 1 or 0 represents TX is not limited.

[0287] Optionally, the SBP parameters element may include third indication information, optionally further include fourth indication information, and optionally further include fifth indication information. The third indication information may indicate whether the SBP initiator requests to perform SR2SR sounding in the proxy sensing procedure. In this embodiment of the present application, the third indication information is set to a preset value (e.g., 1) to indicate that the SBP initiator requests to perform SR2SR sounding in the proxy sensing procedure. The fourth indication information may indicate the number of SR2SR sounding patterns, i.e., the value of L. The fifth indication information may indicate the number of SR2SR soundings corresponding to each SR2SR sounding pattern. For example, the frame format of the SBP parameters control field in FIG. 19 may use the frame format shown in FIG. 10. Details will not be described again in this specification.

[0288] It can be understood that if the third indication information indicates that the SBP initiator does not perform SR2SR sounding in the proxy sensing procedure, both the SR2SR sounding measurement bitmap and the SR2SR role measurement bitmap in FIG. 19 are set to reserved values.

[0289] In this embodiment of the present application, a field (e.g., sensing responder parameters field) is designed for each sensing responder, which indicates one sensing responder, indicates whether the sensing responder participates in SR2SR sounding, and indicates the role of the sensing responder in SR2SR sounding. In this way, the meaning of the field is clear and easy to understand, and the SBP responder can know complete information about the sensing responder during the analysis procedure.

[0290] In this embodiment of the present application, the SBP initiator configures both the sensing responders that will participate in the SR2SR sounding and the roles of these sensing responders in the SR2SR sensing measurement instance during the SBP setup phase. This enables the SBP initiator to have the ability to configure measurement parameters for the sensing responders, which not only helps the SBP initiator control and manage the SBP sensing procedure, but also helps the SBP initiator analyze the sensing measurement report.

[0291] It can be seen from the above fifth point (i.e., "5. Sensing Session Setup and Sensing Measurement Setup") that when the existing max number of supported setups field indicates the maximum number of measurement setups (MSs) that can be maintained, it does not distinguish whether the transmitting device is an AP or a non-AP STA, i.e., it does not distinguish whether the type of the (sensing) measurement setup MS is a TB type (i.e., the AP is the sensing initiator) or a non-TB type (i.e., a non-AP STA is the sensing initiator). For example, an AP acting as a sensing initiator may set up up to eight TB type MSs with non-AP STAs, and the AP may also act as a sensing responder to set up up to eight non-TB type MSs with the same non-AP STA. In this case, one AP or one non-AP STA can set up up to 16 MSs (i.e., eight TB type MSs and eight non-TB type MSs) or may set up zero MSs. Therefore, there are a total of 17 values ​​(i.e., 0 to 16). However, the existing max number of supported setups field (4 bits) cannot represent 17 values.

[0292] Therefore, to modify the existing sensing capability exchange field so that the sensing capability exchange field can indicate the total number of MSs that may be set up and the type of MS (i.e., TB type or non-TB type) can be further distinguished, this embodiment of the present application provides another information display method in WLAN sensing.

[0293] Optionally, both the first communication device and the second communication device in this embodiment of the present application may support a WLAN sensing protocol, for example, 802.11bf or an 802.11bf next generation protocol.

[0294] Embodiment 4 Embodiment 4 of the present application mainly describes extending the max number of supported setups field in the sensing session setup phase so that the max number of supported setups field can indicate the total number of MSs that can be set up.

[0295] 20 is a fourth schematic flowchart of an information display method in WLAN sensing according to an embodiment of the present application. The method may be applied to a sensing session setup stage in a general sensing procedure. In this method, the first communication device may be a sensing initiator, and the second communication device may be a sensing responder. Indeed, in this method, the first communication device may alternatively be a sensing responder, and the second communication device is a sensing initiator. This is not limited to this embodiment of the present application.

[0296] As shown in FIG. 20, the information display method in WLAN sensing includes, but is not limited to, the following steps:

[0297] S401: A first communication device generates a first sensing element, where the first sensing element is used by the first communication device to exchange sensing capability information with a second communication device, and the first sensing element includes a maximum number of supported sensing measurement setups field, and the length of the maximum number of supported sensing measurement setups field in the first sensing element is longer than 4 bits, and the maximum number of supported sensing measurement setups field in the first sensing element indicates the maximum total number of sensing measurement setups that the first communication device can set up with the second communication device.

[0298] S402: The first communication device transmits a first sensing element to the second communication device.

[0299] In response, the second communication device receives the first sensing element.

[0300] S403: The second communication device analyzes the first sensing element to obtain a maximum total number of sensing measurement setups that the first communication device can set up with the second communication device.

[0301] Optionally, the information display method in WLAN sensing further includes:

[0302] S404: The second communication device sends a second sensing element to the first communication device, where the second sensing element is used by the second communication device to exchange sensing capability information with the first communication device, and the second sensing element includes a maximum number of supported sensing measurement setups field, the length of the maximum number of supported sensing measurement setups field in the second sensing element is longer than 4 bits, and the maximum number of supported sensing measurement setups field in the second sensing element indicates the maximum total number of sensing measurement setups that the second communication device can set up with the first communication device.

[0303] Correspondingly, the first communication device may receive the second sensing element and analyze the second sensing element to obtain a maximum total number of sensing measurement setups that the second communication device can set up with the first communication device.

[0304] In one possible implementation, the sensing initiator and the sensing responder may exchange their respective sensing capability information by using a sensing element. In this embodiment of the present application, since there are seven reserved bits in the sensing field in the existing sensing element (e.g., the frame format shown in FIG. 3), the length of the max number of supported setups field may be modified by reducing the number of existing reserved bits so that the max number of supported setups field can indicate the total number of MSs that can be set up.

[0305] In particular, the first communication device and the second communication device exchange their respective sensing capability information by using sensing elements. For example, the first communication device transmits a first sensing element carrying the sensing capability information of the first communication device to the second communication device, and the second communication device transmits a second sensing element carrying the sensing capability information of the second communication device to the first communication device. The frame formats of the first sensing element and the second sensing element may be the same. In other words, the fields included in the first sensing element and the second sensing element may be the same, but the specific values ​​of the fields may be different. The lengths of the maximum number of supported sensing measurement setups fields (i.e., the max number of supported setups field) in the first sensing element and the second sensing element are both longer than 4 bits. For example, the maximum number of supported sensing measurement setups field (i.e., the max number of supported setups field) is located in the sensing field of the sensing element.

[0306] FIG. 21 is a diagram of a frame format of the sensing field in the sensing element according to one embodiment of the present application. As shown in FIG. 21, the sensing field includes a max number of supported setups field, the length of which is, but not limited to, 5 bits. Each communication device can set up a maximum of 16 MSs (i.e., 8 TB-type MSs and 8 non-TB-type MSs), or may set up 0 MSs. In other words, each communication device has 17 possible total numbers of MSs (i.e., 0 MS to 16 MSs). Therefore, the max number of supported setups field needs to be represented by at least 5 bits. The max number of supported setups field may indicate the maximum total number of (sensing) measurement setups (MSs) that a device transmitting a sensing element can set up with a device receiving the sensing element, or may indicate the maximum number of MSs that a device transmitting a sensing element can maintain with a device receiving the sensing element.

[0307] The names and meanings of the fields in the sensing field shown in Figure 21 may be understood to refer to existing standards, for example, the 802.11bf standard, and will not be described in detail herein.

[0308] In this embodiment of the present application, the length of the max number of supported setups field is extended from 4 bits to more than 4 bits so that the max number of supported setups field can indicate the total number of MSs that can be set up (i.e., 0 MS to 16 MS). In addition, the meaning of the max number of supported setups field may not be changed and the length of the sensing field may not be changed, thereby facilitating compatibility with existing protocols.

[0309] Embodiment 5 Embodiment 5 of the present application mainly describes a newly added field in the sensing session setup phase to distinguish between types of MS (ie, TB type or non-TB type).

[0310] 22 is a fifth schematic flowchart of an information display method in WLAN sensing according to an embodiment of the present application. The method may be applied to a sensing session setup phase in a general sensing procedure. In this method, the first communication device may be a sensing initiator, and the second communication device may be a sensing responder. Indeed, in this method, the first communication device may alternatively be a sensing responder, and the second communication device is a sensing initiator. This is not limited in this embodiment of the present application.

[0311] As shown in FIG. 22, the information display method in WLAN sensing may include, but is not limited to, the following steps:

[0312] S501: A first communication device generates a first sensing element, wherein the first sensing element is used by the first communication device to exchange sensing capability information with a second communication device, and the first sensing element includes a maximum number of supported trigger-based sensing measurement setups field and a maximum number of supported non-trigger-based sensing measurement setups field, wherein the maximum number of supported trigger-based sensing measurement setups field in the first sensing element indicates the maximum total number of trigger-based sensing measurement setups that the first communication device can set up with the second communication device, and the maximum number of supported non-trigger-based sensing measurement setups field in the first sensing element indicates the maximum total number of non-trigger-based sensing measurement setups that the first communication device can set up with the second communication device.

[0313] S502: The first communication device transmits a first sensing element to the second communication device.

[0314] In response, the second communication device receives the first sensing element.

[0315] S503: The second communication device analyzes the first sensing element to obtain a maximum total number of trigger-based sensing measurement setups that the first communication device can set up with the second communication device and a maximum total number of non-trigger-based sensing measurement setups that the first communication device can set up with the second communication device.

[0316] Optionally, the information display method in WLAN sensing further includes:

[0317] S504: The second communication device transmits a second sensing element to the first communication device, wherein the second sensing element is used by the second communication device to exchange sensing capability information with the first communication device, and a maximum number of supported trigger-based sensing measurement setups field included in the second sensing element indicates a maximum total number of trigger-based sensing measurement setups that the second communication device can set up with the first communication device, and a maximum number of supported non-trigger-based sensing measurement setups field included in the second sensing element indicates a maximum total number of non-trigger-based sensing measurement setups that the second communication device can set up with the first communication device.

[0318] Correspondingly, the first communication device may receive the second sensing element and analyze the second sensing element to obtain a maximum total number of trigger-based sensing measurement setups that the second communication device can set up with the first communication device and a maximum total number of non-trigger-based sensing measurement setups that the second communication device can set up with the first communication device.

[0319] Optionally, the first communication device and the second communication device may exchange their respective sensing capability information using sensing elements. For example, the first communication device transmits a first sensing element carrying the sensing capability information of the first communication device to the second communication device, and the second communication device transmits a second sensing element carrying the sensing capability information of the second communication device to the first communication device. The frame formats of the first sensing element and the second sensing element may be the same. In other words, the fields included in the first sensing element and the fields included in the second sensing element may be the same, but the specific values ​​of the fields may be different.

[0320] Optionally, both the first sensing element and the second sensing element may include a maximum number of supported trigger-based sensing measurement setups field and a maximum number of supported non-trigger-based sensing measurement setups field. The maximum number of supported trigger-based sensing measurement setups field may indicate the maximum total number of trigger-based (TB) sensing measurement setups that a device transmitting the sensing element can set up with a device receiving the sensing element. The maximum number of supported non-trigger-based sensing measurement setups field may indicate the maximum total number of non-trigger-based (non-TB) sensing measurement setups that a device transmitting the sensing element can set up with a device receiving the sensing element. For example, the maximum number of supported trigger-based sensing measurement setups field and the maximum number of supported non-trigger-based sensing measurement setups field may be located in the sensing field in the sensing element.

[0321] For example, Figure 23 is a diagram of another frame format of the sensing field in the sensing element according to one embodiment of the present application. As shown in Figure 23, the sensing field includes, but is not limited to, a maximum number of supported trigger-based sensing measurement setups field and a maximum number of supported non-trigger-based sensing measurement setups field. The maximum number of supported trigger-based sensing measurement setups field is 4 bits in length, and the 4 bits may represent 0 to 8 TB-type MSs. The maximum number of supported non-trigger-based sensing measurement setups field is also 4 bits in length, and the 4 bits may represent 0 to 8 non-TB-type MSs. For example, when the maximum number of supported trigger-based sensing measurement setups field is 0000 (equivalent to 0 in decimal notation), it indicates that the total maximum number of TB sensing measurement setups that a device transmitting a sensing element can set up with a device receiving the sensing element is 0; when the maximum number of supported trigger-based sensing measurement setups field is 0001 (equivalent to 1 in decimal notation), it indicates that the total maximum number of TB sensing measurement setups that a device transmitting a sensing element can set up with a device receiving the sensing element is 1; the rest can be inferred by analogy; or when the maximum number of supported trigger-based sensing measurement setups field is 1000 (equivalent to 8 in decimal notation), it indicates that the total maximum number of TB sensing measurement setups that a device transmitting a sensing element can set up with a device receiving the sensing element is 8. The maximum number of supported non-trigger-based sensing measurement setups field is similar to the maximum number of supported trigger-based sensing measurement setups field. The details will not be explained again.

[0322] The names and meanings of other fields not described in the sensing field shown in Figure 23 may be understood to refer to existing standards, for example, the 802.11bf standard. Details will not be described in this specification. It may be further understood that the names, lengths, orders, etc. of the maximum number of supported trigger-based sensing measurement setups field and the maximum number of supported non-trigger-based sensing measurement setups field shown in Figure 23 are merely examples. This is not limited in this embodiment of the present application.

[0323] In this embodiment of the present application, two fields are added to the sensing field in the sensing element: one field indicates the maximum total number of TB sensing measurement setups that a device transmitting a sensing element can set up with a device receiving the sensing element, and the other field indicates the maximum total number of non-TB sensing measurement setups that a device transmitting a sensing element can set up with a device receiving the sensing element. In this way, not only can the total number of MSs that can be set up (i.e., 0 MS to 16 MS) be indicated, but also the type of MS can be distinguished. In addition, in this embodiment of the present application, the length of the sensing field is not changed, thereby facilitating compatibility with existing protocols.

[0324] In some scenarios, a sensing device may not only perform sensing but also perform communication or another service. Non-sensing services may occupy sensing resources, and the specific number of occupied resources is determined in real time. Therefore, even if a sensing initiator and a sensing responder exchange sensing capability information, a new MS may not be set up due to insufficient resources in actual use. In one possible implementation, to set up a new MS, a sensing initiator or a sensing responder may terminate an existing MS to release resources. In the process of terminating an MS, a sensing measurement setup termination frame needs to be sent, which results in large signaling overhead.

[0325] In view of this, this embodiment of the present application further provides an information display method in WLAN sensing to dynamically indicate whether a new MS can be set up, so that the sensing measurement setup efficiency can be improved and the signaling overhead can be reduced.

[0326] Optionally, both the sensing initiator and the sensing responder in this embodiment of the present application may support a WLAN sensing protocol, for example, 802.11bf or an 802.11bf next generation protocol.

[0327] Embodiment 6 Embodiment 6 of the present application mainly describes how to indicate whether a new MS can be set up in the sensing measurement setup stage.

[0328] 24 is a schematic flowchart of a sixth method for displaying information in WLAN sensing according to an embodiment of the present application. The method may be applied to a general sensing procedure (including TB-type sensing measurements and non-TB-type sensing measurements) or to a proxy sensing procedure (TB-type sensing measurements). When the method is applied to a proxy sensing procedure, the method may be implemented together with at least one of Embodiments 1 to 3. When the method is applied to a proxy sensing procedure, the sensing initiator in the method may be the AP in FIG. 2, and the sensing responder may be non-AP STA2 or non-AP STA3 in FIG. 2. When the method is applied to a general sensing procedure, the method may be implemented together with Embodiment 4 or Embodiment 5. Indeed, regardless of the sensing procedure to which the method is applied, the method may be implemented separately.

[0329] As shown in FIG. 24, the information display method in WLAN sensing may include, but is not limited to, the following steps:

[0330] S601: A sensing initiator sends a sensing measurement setup request frame, where the sensing measurement setup request frame is used to request to set up a sensing measurement setup with a sensing responder, and the sensing measurement setup request frame includes first measurement setup indication information, and the first measurement setup indication information indicates whether the sensing initiator can set up another sensing measurement setup.

[0331] In response, the sensing responder receives a sensing measurement setup request frame.

[0332] S602: The sensing responder sends a sensing measurement setup response frame, where the sensing measurement setup response frame is used to accept or reject the request of the sensing initiator.

[0333] In response, the sensing initiator receives a sensing measurement setup response frame.

[0334] Optionally, during the sensing measurement setup phase, the sensing initiator sends a sensing measurement setup request frame to the sensing responder to request setting up a sensing measurement setup with the sensing responder. After receiving the sensing measurement setup request frame, the sensing responder replies with a sensing measurement setup response frame to indicate that the sensing measurement setup request (i.e., the sensing initiator's request) is accepted or rejected.

[0335] In one possible implementation, the sensing initiator may carry first measurement setup indication information in the sensing measurement setup request frame to indicate whether the sensing initiator can set up another sensing measurement setup or whether the sensing initiator can act as a sensing responder for setting up another sensing measurement setup. In other words, when setting up the current MS, the sensing initiator may indicate whether a new sensing measurement setup can be set up with the peer end. For example, a field may be added to the sensing measurement setup request frame to carry first measurement setup indication information. FIG. 25 is a diagram of a frame format of a sensing measurement setup request frame according to an embodiment of the present application. As shown in FIG. 25, the sensing measurement setup request frame includes, but is not limited to, a measurement setup control field. The measurement setup control field in the sensing measurement setup request frame may be used to carry first measurement setup indication information. The meanings of other fields not described in FIG. 25 may be understood to refer to existing standards. Details will not be described herein. It can be further understood that the names and lengths of the measurement setup control fields in Figure 25 are merely examples, which are not limited in this embodiment of the present application.

[0336] 26a and 26b are diagrams of two frame formats of the measurement setup control field according to one embodiment of the present application. As shown in FIG. 26a, the measurement setup control field (e.g., the first measurement setup indication information) includes, but is not limited to, a new measurement setup field. The length of the new measurement setup field may be 1 bit, and the 1 bit may indicate whether the device transmitting the measurement setup control field can set up a new sensing measurement setup. For example, if the device transmitting the measurement setup control field is an AP (or the sensing initiator is an AP), the new measurement setup field may indicate whether the AP can act as a sensing responder for setting up a new ("new" in this specification may refer to "another") non-TB MS. If the device sending the measurement setup control field is a non-AP STA (or the sensing initiator is a non-AP STA), the new measurement setup field may indicate whether the non-AP STA can act as a sensing responder for setting up a new ("new" in this specification may refer to "another") TB MS.

[0337] As shown in Figure 26b, the measurement setup control field (e.g., the first measurement setup indication information) includes, but is not limited to, a new TB measurement setup field and a new non-TB measurement setup field. The new TB measurement setup field may be 1 bit long, and the 1 bit may indicate whether the device sending the measurement setup control field can set up another TB type sensing measurement setup. The new non-TB measurement setup field may be 1 bit long, and the 1 bit may indicate whether the device sending the measurement setup control field can set up another non-TB type sensing measurement setup.

[0338] It can be understood that the names and lengths of the fields in Figures 26a and 26b are only examples, which are not limiting in this embodiment of the present application.

[0339] Optionally, the sensing responder may also carry second measurement setup indication information in the sensing measurement setup response frame to indicate whether the sensing responder can set up another sensing measurement setup or whether the sensing responder can act as a sensing responder for setting up another sensing measurement setup. In other words, when setting up the current MS, the sensing responder may also indicate whether a new sensing measurement setup can be set up with the peer end. For example, a field may be added to the sensing measurement setup response frame to carry second measurement setup indication information. Figure 27 is a diagram of a frame format of a sensing measurement setup response frame according to an embodiment of the present application. As shown in Figure 27, the sensing measurement setup response frame includes, but is not limited to, a measurement setup control field. The measurement setup control field in the sensing measurement setup response frame may be used to carry second measurement setup indication information. For example, the frame format of the measurement setup control field is shown in Figures 26a and 26b. Details will not be described again herein. The meanings of other fields not described in Figure 27 may be understood to refer to existing standards. Details will not be described in this specification. It may be further understood that the names, lengths, and orders of the measurement setup control fields in Figure 27 are merely examples. This is not limited to this embodiment of the present application.

[0340] For example, when the measurement setup control field in the sensing measurement setup response frame uses the frame format shown in Figure 26a, if the device transmitting the measurement setup control field is an AP (i.e., the sensing responder is an AP), the new measurement setup field may indicate whether the AP can act as a sensing responder for setting up a new (in this specification, "new" may refer to "another") non-TB MS. If the device transmitting the measurement setup control field is a non-AP STA (i.e., the sensing responder is a non-AP STA), the new measurement setup field may indicate whether the non-AP STA can act as a sensing responder for setting up a new (in this specification, "new" may refer to "another") TB MS.

[0341] In some possible implementations, before the sensing measurement setup phase, the sensing initiator and the sensing responder may perform a coarse indication in the sensing session setup phase to indicate whether the sensing initiator and the sensing responder can set up a TB type sensing measurement setup and a non-TB type sensing measurement setup. In this case, before step S601, the information indication method in WLAN sensing may further include: the sensing initiator and the sensing responder exchange their respective sensing capability information using a sensing element. The sensing element includes indication information A indicating whether a device transmitting the sensing element supports setting up one or more of the following MSs: a TB type MS or a non-TB type MS. For example, a field may be added to the sensing field in the sensing element to carry the indication information A.

[0342] For example, FIG. 28 is a diagram of yet another frame format of the sensing field in the sensing element according to one embodiment of the present application. As shown in FIG. 28, the sensing field includes, but is not limited to, a support TB setups field and a support non-TB setups field. The support TB setups field may be 1 bit long, and this 1 bit may indicate whether the device transmitting the sensing element supports setting up a TB MS. The support non-TB setups field may also be 1 bit long, and this 1 bit may indicate whether the device transmitting the sensing element supports setting up a non-TB MS. The meanings of other fields not described in FIG. 28 may be understood to refer to existing standards. Details will not be described herein. It may further be understood that the names and lengths of the support TB setups field and the support non-TB setups field in FIG. 28 are merely examples, and this is not limited in this embodiment of the present application.

[0343] It can further be seen that display information A in FIG. 28 is implemented using the support TB setups field and the support non-TB setups field.

[0344] In this embodiment of the present application, during the sensing measurement setup phase, to avoid a case where one party still sends a sensing measurement setup request frame to the other party to request that a new sensing measurement setup be set up when the other party is unable to set up a new sensing measurement setup, the measurement indication information indicates whether a new sensing measurement setup can be set up so that the two exchanging parties know their respective capabilities. In this way, the sensing measurement setup efficiency is improved, and there is no need to terminate an existing sensing measurement setup to release resources, i.e., there is no need to send a sensing measurement setup termination frame, thereby reducing signaling overhead. In addition, if a device has not exhausted resources (e.g., storage space) reserved by a sensing service but has notified another device through the measurement indication information that it is unable to set up a new sensing measurement setup, the device may release unused resources among the resources reserved for the sensing service to reduce the impact on another service (i.e., a non-sensing service).

[0345] The above describes the method in the present application in detail. In order to better implement the above solution in the embodiments of the present application, the embodiments of the present application further provide a corresponding apparatus or device.

[0346] In the present application, functional modules such as a proxy sensing initiator, a proxy sensing responder, a first communication device, a second communication device, a sensing initiator, and a sensing responder are divided based on the above-described method embodiment. For example, each functional module may be obtained through division based on its corresponding function, or two or more functions may be integrated into one processing module. The integrated module may be implemented in the form of hardware or in the form of a software functional module. Note that in the present application, the division into modules is merely an example and a logical functional division. In actual implementation, other division methods may be used. Below, a communication device in the embodiment of the present application will be described in detail with reference to FIGS. 29 to 31.

[0347] 29 is a diagram of the structure of a communication device according to an embodiment of the present application. As shown in FIG. 29, the communication device includes a transceiver unit 10 and a processing unit 20.

[0348] In some embodiments of the present application, the communication device may be the proxy sensing initiator (non-AP STA) shown above, or a chip in the proxy sensing initiator, for example, a Wi-Fi chip. In other words, the communication device shown in Figure 29 may be configured to perform the steps, functions, etc. performed by the proxy sensing initiator (AP) in the above method embodiments.

[0349] In a design, the transceiver unit 10 is configured to transmit a proxy sensing request frame and receive a proxy sensing response frame. The proxy sensing request frame includes addresses of N sensing responders, where the address of one sensing responder is used to identify one sensing responder. The proxy sensing request frame further includes first indication information, where the first indication information indicates whether the N sensing responders participate in one or more of the following sensing measurements: TF sounding, NDPA sounding, or SR2SR sounding, where N is an integer greater than or equal to 1.

[0350] Optionally, the processing unit 20 is configured to generate a proxy sensing request frame.

[0351] For specific descriptions of the proxy sensing request frame, the first indication information, the proxy sensing response frame, etc., please refer to the first embodiment of the method set forth above, and the details will not be described again in this specification.

[0352] It can be understood that the specific descriptions of the transceiver unit and the processing unit shown in this embodiment of the present application are merely examples. For specific functions, steps, etc. of the transceiver unit and the processing unit, please refer to Embodiment 1 of the above method. The details will not be described again herein. For example, the processing unit 20 may be configured to generate a proxy sensing request frame transmitted in step S101 shown in FIG. 5, and the transceiver unit 10 may be configured to perform step S101 shown in FIG.

[0353] In another design, transceiver unit 10 is configured to transmit a proxy sensing request frame and receive a proxy sensing response frame. The proxy sensing request frame includes addresses of N sensing responders, where one sensing responder address is used to identify one sensing responder. The proxy sensing request frame further includes role indication information, where the role indication information indicates roles of the N sensing responders in a sensing measurement instance. The roles include any one of the following: sensing transmitter, sensing receiver, and sensing transmitter and sensing receiver. N is an integer greater than or equal to 1.

[0354] Optionally, the processing unit 20 is configured to generate a proxy sensing request frame.

[0355] For specific descriptions of the proxy sensing request frame, role indication information, proxy sensing response frame, etc., please refer to the above-mentioned embodiment 2 of the method, and the details will not be described again in this specification.

[0356] It can be understood that the specific descriptions of the transceiver unit and the processing unit shown in this embodiment of the present application are merely examples. For specific functions, steps, etc. of the transceiver unit and the processing unit, please refer to Embodiment 2 of the above method. The details will not be described again herein. For example, the processing unit 20 may be configured to generate a proxy sensing request frame to be transmitted in step S201 shown in FIG. 11, and the transceiver unit 10 may be configured to perform step S201 shown in FIG.

[0357] 29 is reused. In some other embodiments of the present application, the communication device may be the proxy sensing responder (AP) shown above, or a chip in the proxy sensing responder (AP), for example, a Wi-Fi chip. In other words, the communication device shown in FIG. 29 may be configured to perform the steps, functions, etc. performed by the proxy sensing responder (AP) in the above method embodiments.

[0358] In a design, the transceiver unit 10 is configured to receive a proxy sensing request frame and transmit a proxy sensing response frame. The proxy sensing request frame includes addresses of N sensing responders, where the address of one sensing responder is used to identify one sensing responder. The proxy sensing request frame further includes first indication information, where the first indication information indicates whether the N sensing responders participate in one or more of the following sensing measurements: TF sounding, NDPA sounding, or SR2SR sounding, where N is an integer greater than or equal to 1.

[0359] Optionally, the processing unit 20 is configured to generate a proxy sensing response frame.

[0360] For specific descriptions of the proxy sensing request frame, the first indication information, the proxy sensing response frame, etc., please refer to the first embodiment of the method set forth above, and the details will not be described again in this specification.

[0361] It can be understood that the specific descriptions of the transceiver unit and the processing unit shown in this embodiment of the present application are merely examples. For specific functions, steps, etc. of the transceiver unit and the processing unit, please refer to Embodiment 1 of the above method. The details will not be described again herein. For example, the processing unit 20 may be configured to generate a proxy sensing response frame transmitted in step S102 shown in FIG. 5, and the transceiver unit 10 may be configured to perform step S102 shown in FIG.

[0362] In another design, transceiver unit 10 is configured to receive a proxy sensing request frame and transmit a proxy sensing response frame. The proxy sensing request frame includes addresses of N sensing responders, where one sensing responder address is used to identify one sensing responder, and the proxy sensing request frame further includes role indication information, where the role indication information indicates roles of the N sensing responders in a sensing measurement instance. The roles include any one of the following: sensing transmitter, sensing receiver, and sensing transmitter and sensing receiver, where N is an integer greater than or equal to 1.

[0363] Optionally, the processing unit 20 is configured to generate a proxy sensing response frame.

[0364] For specific descriptions of the proxy sensing request frame, role indication information, proxy sensing response frame, etc., please refer to the above-mentioned embodiment 2 of the method, and the details will not be described again in this specification.

[0365] It can be understood that the specific descriptions of the transceiver unit and the processing unit shown in this embodiment of the present application are merely examples. For specific functions, steps, etc. of the transceiver unit and the processing unit, please refer to Embodiment 2 of the above method. The details will not be described again herein. For example, the processing unit 20 may be configured to generate a proxy sensing response frame to be transmitted in step S202 shown in FIG. 11, and the transceiver unit 10 may be configured to perform step S202 shown in FIG.

[0366] 29 is reused. In some further embodiments of the present application, the communication device may be the first communication device shown above, or a chip in the first communication device, for example, a Wi-Fi chip. In other words, the communication device shown in FIG. 29 may be configured to perform the steps, functions, etc. performed by the first communication device in the above method embodiments.

[0367] In a design, the processing unit 20 is configured to generate a first sensing element, and the transceiver unit 10 is configured to transmit the first sensing element to the second communication device. The first sensing element is used by the first communication device to exchange sensing capability information with the second communication device, and the first sensing element includes a first field, where the length of the first field is greater than 4 bits, and the first field indicates a maximum total number of sensing measurement setups that the first communication device can set up with the second communication device.

[0368] Optionally, the transceiver unit 10 is further configured to receive a second sensing element transmitted by the second communication device, the second sensing element being used by the second communication device to exchange sensing capability information with the first communication device, the second sensing element including a second field, the length of the second field being longer than 4 bits, and the second field indicating a maximum total number of sensing measurement setups that the second communication device can set up with the first communication device.

[0369] For specific descriptions of the first sensing element, the second sensing element, the first field, the second field, etc., please refer to the above-mentioned method embodiment 4. The details will not be described again in this specification.

[0370] It can be understood that the specific descriptions of the transceiver unit and the processing unit shown in this embodiment of the present application are only examples. For the specific functions, steps, etc. of the transceiver unit and the processing unit, please refer to the above-mentioned embodiment 4 of the method. The details will not be described again in this specification. For example, the processing unit 20 may be configured to perform step S401 shown in FIG. 20, and the transceiver unit 10 may be configured to perform step S402 and step S404 shown in FIG. 20.

[0371] In another design, the processing unit 20 is configured to generate a first sensing element, and the transceiver unit 10 is configured to transmit the first sensing element to the second communication device. The first sensing element is used by the first communication device to exchange sensing capability information with the second communication device, and the first sensing element includes a first field and a second field, where the first field indicates a maximum total number of trigger-based sensing measurement setups that the first communication device can set up with the second communication device, and the second field indicates a maximum total number of non-trigger-based sensing measurement setups that the first communication device can set up with the second communication device.

[0372] Optionally, the transceiver unit 10 is further configured to receive a second sensing element transmitted by the second communication device, the second sensing element being used by the second communication device to exchange sensing capability information with the first communication device, a third field included in the second sensing element indicating a maximum total number of trigger-based sensing measurement setups that the second communication device can set up with the first communication device, and a fourth field included in the second sensing element indicating a maximum total number of non-trigger-based sensing measurement setups that the second communication device can set up with the first communication device.

[0373] For specific descriptions of the first sensing element, the second sensing element, the first field, the second field, the third field, the fourth field, etc., please refer to the above-mentioned method embodiment 5. The details will not be described again in this specification.

[0374] It can be understood that the specific descriptions of the transceiver unit and the processing unit shown in this embodiment of the present application are only examples. For specific functions, steps, etc. of the transceiver unit and the processing unit, please refer to the above-mentioned embodiment 5 of the method. The details will not be described again in this specification. For example, the processing unit 20 may be configured to perform step S501 shown in FIG. 22, and the transceiver unit 10 may be configured to perform step S502 and step S504 shown in FIG. 22.

[0375] 29 is reused. In some other embodiments of the present application, the communication device may be the second communication device shown above, or a chip in the second communication device, for example, a Wi-Fi chip. In other words, the communication device shown in FIG. 29 may be configured to perform the steps, functions, etc. performed by the second communication device in the above method embodiments.

[0376] In a design, the transceiver unit 10 is configured to receive a first sensing element transmitted by a first communication device, where the first sensing element is used by the first communication device to exchange sensing capability information with a second communication device, and the processing unit 20 is configured to analyze the first sensing element to obtain a maximum total number of sensing measurement setups that the first communication device can set up with the second communication device. The first sensing element includes a first field, where the length of the first field is longer than 4 bits, and the first field indicates the maximum total number of sensing measurement setups that the first communication device can set up with the second communication device.

[0377] Optionally, the transceiver unit 10 is further configured to transmit a second sensing element to the first communication device, the second sensing element being used by the second communication device to exchange sensing capability information with the first communication device, the second sensing element including a second field, the length of the second field being longer than 4 bits, and the second field indicating a maximum total number of sensing measurement setups that the second communication device can set up with the first communication device.

[0378] For specific descriptions of the first sensing element, the second sensing element, the first field, the second field, etc., please refer to the above-mentioned method embodiment 4. The details will not be described again in this specification.

[0379] It can be understood that the specific descriptions of the transceiver unit and the processing unit shown in this embodiment of the present application are merely examples. For specific functions, steps, etc. of the transceiver unit and the processing unit, please refer to the above-mentioned embodiment 4 of the method. The details will not be described again herein. For example, the transceiver unit 10 may be configured to receive the first sensing element and transmit the second sensing element, and the processing unit 20 may be configured to perform step S403 shown in FIG. 20.

[0380] In another design, the transceiver unit 10 is configured to receive a first sensing element transmitted by a first communication device, where the first sensing element is used by the first communication device to exchange sensing capability information with a second communication device, and the processing unit 20 is configured to analyze the first sensing element to obtain a maximum total number of trigger-based sensing measurement setups that the first communication device can set up with the second communication device and a maximum total number of non-trigger-based sensing measurement setups that the first communication device can set up with the second communication device. The first sensing element includes a first field and a second field, where the first field indicates a maximum total number of trigger-based sensing measurement setups that the first communication device can set up with the second communication device, and the second field indicates a maximum total number of non-trigger-based sensing measurement setups that the first communication device can set up with the second communication device.

[0381] Optionally, the transceiver unit 10 is further configured to transmit a second sensing element to the first communication device, the second sensing element being used by the second communication device to exchange sensing capability information with the first communication device, a third field included in the second sensing element indicating a maximum total number of trigger-based sensing measurement setups that the second communication device can set up with the first communication device, and a fourth field included in the second sensing element indicating a maximum total number of non-trigger-based sensing measurement setups that the second communication device can set up with the first communication device.

[0382] For specific descriptions of the first sensing element, the second sensing element, the first field, the second field, the third field, the fourth field, etc., please refer to the above-mentioned method embodiment 5. The details will not be described again in this specification.

[0383] It can be understood that the specific descriptions of the transceiver unit and the processing unit shown in this embodiment of the present application are only examples. For specific functions, steps, etc. of the transceiver unit and the processing unit, please refer to the above-mentioned embodiment 5 of the method. The details will not be described again in this specification. For example, the transceiver unit 10 may be configured to receive the first sensing element and transmit the second sensing element, and the processing unit 20 may be configured to perform step S503 shown in FIG. 22.

[0384] 29 is reused. In some other embodiments of the present application, the communication device may be the sensing initiator shown above, or a chip in the sensing initiator, for example, a Wi-Fi chip. In other words, the communication device shown in FIG. 29 may be configured to perform the steps, functions, etc. performed by the sensing initiator in the above method embodiments.

[0385] The transceiver unit 10 is configured to transmit a sensing measurement setup request frame and receive a sensing measurement setup response frame, where the sensing measurement setup response frame is used to accept or reject the request of the sensing initiator. The sensing measurement setup request frame is used to request to set up one sensing measurement setup with the sensing responder, and the sensing measurement setup request frame includes first measurement setup indication information, and the first measurement setup indication information indicates whether the sensing initiator can set up another sensing measurement setup.

[0386] Optionally, the processing unit 20 is configured to generate a sensing measurement setup request frame.

[0387] For specific descriptions of the sensing measurement setup request frame, the sensing measurement setup response frame, the first measurement setup indication information, etc., please refer to the above-mentioned embodiment 6 of the method, and the details will not be described again in this specification.

[0388] It can be understood that the specific descriptions of the transceiver unit and the processing unit shown in this embodiment of the present application are only examples. For specific functions, steps, etc. of the transceiver unit and the processing unit, please refer to Embodiment 6 of the above method. The details will not be described again herein. For example, the processing unit 20 may be configured to generate a sensing measurement setup request frame to be transmitted in step S601 shown in FIG. 24, and the transceiver unit 10 may be configured to perform step S601 shown in FIG.

[0389] 29 is reused. In yet some other embodiments of the present application, the communication device may be the sensing responder shown above, or a chip in the sensing responder, for example, a Wi-Fi chip. In other words, the communication device shown in FIG. 29 may be configured to perform the steps, functions, etc. performed by the sensing responder in the above method embodiments.

[0390] The transceiver unit 10 is configured to receive a sensing measurement setup request frame and transmit a sensing measurement setup response frame, where the sensing measurement setup response frame is used to accept or reject the request of the sensing initiator. The sensing measurement setup request frame is used to request setting up one sensing measurement setup with the sensing responder, and the sensing measurement setup request frame includes first measurement setup indication information, and the first measurement setup indication information indicates whether the sensing initiator can set up another sensing measurement setup.

[0391] Optionally, the processing unit 20 is configured to generate a sensing measurement setup response frame.

[0392] For specific descriptions of the sensing measurement setup request frame, the sensing measurement setup response frame, the first measurement setup indication information, etc., please refer to the above-mentioned embodiment 6 of the method, and the details will not be described again in this specification.

[0393] It can be understood that the specific descriptions of the transceiver unit and the processing unit shown in this embodiment of the present application are only examples. For specific functions, steps, etc. of the transceiver unit and the processing unit, please refer to Embodiment 6 of the above method. The details will not be described again herein. For example, the processing unit 20 may be configured to generate a sensing measurement setup response frame transmitted in step S602 shown in FIG. 24, and the transceiver unit 10 may be configured to perform step S602 shown in FIG.

[0394] The above describes the communication device in the embodiment of the present application. The following describes possible product forms of the communication device. It should be understood that any form of product having the function of the communication device in FIG. 29 falls within the protection scope of the embodiment of the present application. It should be further understood that the following description is merely an example, and the product form of the communication device in this embodiment of the present application is not limited thereto.

[0395] In one possible implementation, in the communication device shown in FIG. 29 , the processing unit 20 may be one or more processors, the transceiver unit 10 may be a transceiver, or the transceiver unit 10 may be a transmitting unit and a receiving unit, the transmitting unit may be a transmitter, the receiving unit may be a receiver, or the transmitting unit and the receiving unit may be integrated into one device, for example, a transceiver. In this embodiment of the present application, the processor and the transceiver may be combined, etc. In this embodiment of the present application, the connection manner between the processor and the transceiver is not limited. In the process of executing the above method, the process of transmitting information (e.g., transmitting various frames or elements) in the above method may be understood as a process of outputting the above information by the processor. When outputting information, the processor outputs the information to the transceiver, and as a result, the transceiver transmits the information. After the information is output by the processor, other processing may further be performed on the information before it arrives at the transceiver. Similarly, the process of receiving information (e.g., receiving various frames or elements) in the above method may be understood as a process of receiving input information by the processor. When the processor receives input information, the transceiver receives the information and inputs the information into the processor. Furthermore, after the transceiver receives the information, it may still require other processing to be performed on the information before it is input into the processor.

[0396] 30 is a diagram of another structure of a communication device according to an embodiment of the present application. The communication device may be a proxy sensing initiator, a proxy sensing responder, a first communication device, a second communication device, a sensing initiator, a sensing responder, or a chip therein. FIG. 30 shows only the main components of the communication device. In addition to a processor 1001 and a transceiver 1002, the communication device may further include a memory 1003 and an input / output device (not shown).

[0397] The processor 1001 is primarily configured to process communication protocols and communication data, control the overall communication device, execute software programs, and process data of the software programs. The memory 1003 is primarily configured to store software programs and data. The transceiver 1002 may include control circuitry and an antenna. The control circuitry is primarily configured to convert between baseband signals and radio frequency signals and process radio frequency signals. The antenna is primarily configured to receive / transmit radio frequency signals in the form of electromagnetic waves. The input / output device, for example, a touch screen, a display, or a keyboard, is primarily configured to receive data input by a user and output data to a user.

[0398] After the communication device is powered on, the processor 1001 may read the software program in the memory 1003, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be transmitted wirelessly, the processor 1001 performs baseband processing on the data to be transmitted and outputs the baseband signal to the radio frequency circuit, which performs radio frequency processing on the baseband signal and then transmits the radio frequency signal outward through the antenna in the form of electromagnetic waves. When data is transmitted 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 1001, which converts the baseband signal into data and processes the data.

[0399] In another implementation, the radio frequency circuitry and antenna may be located independently from the processor that performs the baseband processing, e.g., in a distributed scenario, the radio frequency circuitry and antenna may be located independently and remotely from the communication device.

[0400] The transceiver 1002 may include a receiver and a transmitter. The receiver is configured to perform receiving functions (or receiving operations), and the transmitter is configured to perform transmitting functions (or transmitting operations). The transceiver is configured to communicate with another device / apparatus over a transmission medium.

[0401] The processor 1001, the transceiver 1002, and the memory 1003 may be connected via a communication bus.

[0402] For example, when the communication device is configured to perform steps, methods, or functions performed by a proxy sensing initiator, the transceiver 1002 is configured to transmit a proxy sensing request frame and receive a proxy sensing response frame. Optionally, the processor 1001 is configured to generate a proxy sensing request frame. The proxy sensing request frame includes addresses of N sensing responders, where the address of one sensing responder is used to identify one sensing responder, and the proxy sensing request frame further includes first indication information, where the first indication information indicates whether the N sensing responders will participate in one or more of the following sensing measurements: TF sounding, NDPA sounding, or SR2SR sounding.

[0403] For example, when the communication device is configured to perform steps, methods, or functions performed by a proxy sensing responder, the transceiver 1002 is configured to receive a proxy sensing request frame and transmit a proxy sensing response frame. Optionally, the processor 1001 is configured to generate a proxy sensing response frame. The proxy sensing request frame includes addresses of the N sensing responders, where the address of one sensing responder is used to identify one sensing responder, and the proxy sensing request frame further includes first indication information, where the first indication information indicates whether the N sensing responders will participate in one or more of the following sensing measurements: TF sounding, NDPA sounding, or SR2SR sounding.

[0404] In this embodiment of the present application, for descriptions of the proxy sensing request frame, the proxy sensing response frame, the first indication information, the proxy sensing initiator, the proxy sensing responder, etc., please refer to the descriptions in the above embodiment 1 of the method. The details will not be described again in this specification. For specific descriptions of the processor and the transceiver, it can be understood that reference is made to the descriptions of the processing unit and the transceiver unit shown in FIG. The details will not be described again in this specification.

[0405] For example, when the communication device is configured to perform steps, methods, or functions performed by a proxy sensing initiator, the transceiver 1002 is configured to transmit a proxy sensing request frame and receive a proxy sensing response frame. Optionally, the processor 1001 is configured to generate a proxy sensing request frame. The proxy sensing request frame includes addresses of N sensing responders, where the address of one sensing responder is used to identify one sensing responder, and the proxy sensing request frame further includes role indication information, where the role indication information indicates roles of the N sensing responders in a sensing measurement instance, and the roles include any one of the following: a sensing transmitter, a sensing receiver, and a sensing transmitter and a sensing receiver.

[0406] For example, when the communication device is configured to perform a step, method, or function performed by a proxy sensing responder, the transceiver 1002 is configured to receive a proxy sensing request frame and transmit a proxy sensing response frame. Optionally, the processor 1001 is configured to generate a proxy sensing response frame. The proxy sensing request frame includes addresses of N sensing responders, where the address of one sensing responder is used to identify one sensing responder, and the proxy sensing request frame further includes role indication information, where the role indication information indicates roles of the N sensing responders in a sensing measurement instance, and the roles include any one of the following: a sensing transmitter, a sensing receiver, and a sensing transmitter and a sensing receiver.

[0407] In this embodiment of the present application, for descriptions of the proxy sensing request frame, proxy sensing response frame, role indication information, proxy sensing initiator, proxy sensing responder, etc., please refer to the descriptions in the above method embodiment 2. The details will not be described again in this specification. For specific descriptions of the processor and the transceiver, it can be understood that reference is made to the descriptions of the processing unit and the transceiver unit shown in FIG. 29. The details will not be described again in this specification.

[0408] For example, when a communication device is configured to perform a step, method, or function performed by a first communication device, the processor 1001 is configured to generate a first sensing element, and the transceiver 1002 is configured to transmit the first sensing element. The first sensing element is used by the first communication device to exchange sensing capability information with a second communication device, and the first sensing element includes a first field, the length of the first field is greater than 4 bits, and the first field indicates a maximum total number of sensing measurement setups that the first communication device can set up with the second communication device.

[0409] For example, when the communication device is configured to perform a step, method, or function performed by a second communication device, the transceiver 1002 is configured to receive a first sensing element, where the first sensing element is used by the first communication device to exchange sensing capability information with the second communication device, and the processor 1001 is configured to analyze the first sensing element to obtain a maximum total number of sensing measurement setups that the first communication device can set up with the second communication device. The first sensing element includes a first field, where the length of the first field is greater than 4 bits, and the first field indicates the maximum total number of sensing measurement setups that the first communication device can set up with the second communication device.

[0410] In this embodiment of the present application, for descriptions of the first sensing element, the first field, the first communication device, the second communication device, etc., please refer to the descriptions in the above method embodiment 4. Details will not be described again herein. For specific descriptions of the processor and the transceiver, it can be understood that reference is made to the descriptions of the processing unit and the transceiver unit shown in FIG. 29. Details will not be described again herein.

[0411] For example, when a communication device is configured to perform a step, method, or function performed by a first communication device, the processor 1001 is configured to generate a first sensing element, and the transceiver 1002 is configured to transmit the first sensing element. The first sensing element is used by the first communication device to exchange sensing capability information with a second communication device, and the first sensing element includes a first field and a second field, where the first field indicates a maximum total number of trigger-based sensing measurement setups that the first communication device can set up with the second communication device, and the second field indicates a maximum total number of non-trigger-based sensing measurement setups that the first communication device can set up with the second communication device.

[0412] For example, when the communication device is configured to perform a step, method, or function performed by a second communication device, the transceiver 1002 is configured to receive a first sensing element, where the first sensing element is used by the first communication device to exchange sensing capability information with the second communication device, and the processor 1001 is configured to analyze the first sensing element to obtain a maximum total number of trigger-based sensing measurement setups that the first communication device can set up with the second communication device and a maximum total number of non-trigger-based sensing measurement setups that the first communication device can set up with the second communication device. The first sensing element includes a first field and a second field, where the first field indicates a maximum total number of trigger-based sensing measurement setups that the first communication device can set up with the second communication device, and the second field indicates a maximum total number of non-trigger-based sensing measurement setups that the first communication device can set up with the second communication device.

[0413] In this embodiment of the present application, for descriptions of the first sensing element, the first field, the second field, the first communication device, the second communication device, etc., please refer to the descriptions in the above-mentioned embodiment 5 of the method. Details will not be described again in this specification. For specific descriptions of the processor and the transceiver, it can be understood that reference is made to the descriptions of the processing unit and the transceiver unit shown in FIG. 29. Details will not be described again in this specification.

[0414] For example, when the communications device is configured to perform a step, method, or function performed by a sensing initiator, the transceiver 1002 is configured to transmit a sensing measurement setup request frame and receive a sensing measurement setup response frame, where the sensing measurement setup response frame is used to accept or reject the sensing initiator's request. Optionally, the processor 1001 is configured to generate a sensing measurement setup request frame. The sensing measurement setup request frame is used to request setting up one sensing measurement setup with a sensing responder, and the sensing measurement setup request frame includes first measurement setup indication information, where the first measurement setup indication information indicates whether the sensing initiator can set up another sensing measurement setup.

[0415] For example, when the communications device is configured to perform the steps, methods, or functions performed by a sensing responder, the transceiver 1002 is configured to receive a sensing measurement setup request frame and transmit a sensing measurement setup response frame, where the sensing measurement setup response frame is used to accept or reject the sensing initiator's request. Optionally, the processor 1001 is configured to generate a sensing measurement setup response frame. The sensing measurement setup request frame is used to request setting up one sensing measurement setup with the sensing responder, and the sensing measurement setup request frame includes first measurement setup indication information, where the first measurement setup indication information indicates whether the sensing initiator can set up another sensing measurement setup.

[0416] In this embodiment of the present application, for descriptions of the sensing measurement setup request frame, the sensing measurement setup response frame, the first measurement setup indication information, the sensing initiator, the sensing responder, etc., please refer to the descriptions in the above-mentioned embodiment 6 of the method. The details will not be described again herein. For specific descriptions of the processor and the transceiver, it can be understood that reference is made to the descriptions of the processing unit and the transceiver unit shown in FIG. The details will not be described again herein.

[0417] Optionally, the processor 1001 may store instructions. The instructions may be a computer program. The computer program is executed in the processor 1001 to enable the communication device to perform the methods described in the above method embodiments. The computer program may be fixed in the processor 1001. In this case, the processor 1001 may be realized by hardware.

[0418] In one implementation, a communication device may include a circuit. The circuit may implement a transmitting function, a receiving function, or a communication function in the above method embodiments. The processors and transceivers described herein may be implemented on an integrated circuit (IC), an analog IC, a radio frequency integrated circuit (RFIC), a mixed-signal IC, an application-specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc. The processors and transceivers may alternatively be fabricated using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), n-type metal oxide semiconductor (NMOS), p-type metal oxide semiconductor (PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0419] It can be understood that the communication device shown in this embodiment of the present application may further include more components than those in FIG. 30 , which is not limited in this embodiment of the present application. The above method performed by the processor and the transceiver is merely an example. For specific steps performed by the processor and the transceiver, please refer to the description in the above method embodiment.

[0420] In another possible implementation, in the communication device shown in FIG. 29, the processing unit 20 may be one or more logic circuits, and the transceiver unit 10 may be an input / output interface, or may be referred to as a communication interface, an interface circuit, an interface, etc. Alternatively, the transceiver unit 10 may be a transmitting unit and a receiving unit. The transmitting unit may be an output interface, and the receiving unit may be an input interface. The transmitting unit and the receiving unit are integrated into one unit, for example, an input / output interface. FIG. 31 is a diagram of yet another structure of a communication device according to an embodiment of the present application. As shown in FIG. 31, the communication device shown in FIG. 31 includes a logic circuit 901 and an interface 902. In other words, the processing unit 20 may be realized by using the logic circuit 901, and the transceiver unit 10 may be realized by using the interface 902. The logic circuit 901 may be a chip, a processing circuit, an integrated circuit, a system on chip (SoC), etc. The interface 902 may be a communication interface, an input / output interface, a pin, etc. For example, FIG. 31 shows an example in which the communication device is a chip and the chip includes a logic circuit 901 and an interface 902 .

[0421] In this embodiment of the present application, the logic circuit and the interface may be coupled to each other, and this embodiment of the present application does not limit a specific connection manner between the logic circuit and the interface.

[0422] For example, when the communication device is configured to perform steps, methods, or functions performed by a proxy sensing initiator, the interface 902 is configured to transmit a proxy sensing request frame and receive a proxy sensing response frame. Optionally, the logic circuit 901 is configured to generate a proxy sensing request frame.

[0423] For example, when the communication device is configured to perform steps, methods, or functions performed by a proxy sensing responder, the interface 902 is configured to receive proxy sensing request frames and transmit proxy sensing response frames. Optionally, the logic circuit 901 is configured to generate proxy sensing response frames.

[0424] In this embodiment of the present application, for descriptions of the proxy sensing request frame, proxy sensing response frame, proxy sensing initiator, proxy sensing responder, etc., please refer to the descriptions in the above method embodiment 1, method embodiment 2, or method embodiment 3. The details will not be described again herein. For specific descriptions of the logic circuit 901 and the interface 902, it can be understood that reference is made to the descriptions of the processing unit and the transceiver unit shown in FIG. 29. The details will not be described again herein.

[0425] For example, when the communication device is configured to perform a step, method, or function performed by a first communication device, the logic circuit 901 is configured to generate a first sensing element and the interface 902 is configured to transmit the first sensing element.

[0426] For example, when the communication device is configured to perform a step, method, or function performed by a second communication device, the interface 902 is configured to receive a first sensing element, where the first sensing element is used by the first communication device to exchange sensing capability information with the second communication device, and the logic circuit 901 is configured to analyze the first sensing element.

[0427] In this embodiment of the present application, for descriptions of the first sensing element, the first communication device, the second communication device, etc., please refer to the descriptions in the above method embodiment 4 or method embodiment 5. Details will not be described again herein. For specific descriptions of the processor and the transceiver, it can be understood that reference is made to the descriptions of the processing unit and the transceiver unit shown in FIG. 29. Details will not be described again herein.

[0428] For example, when the communications device is configured to perform a step, method, or function performed by a sensing initiator, the interface 902 is configured to send a sensing measurement setup request frame and receive a sensing measurement setup response frame, where the sensing measurement setup response frame is used to accept or reject the sensing initiator's request. Optionally, the logic circuit 901 is configured to generate a sensing measurement setup request frame.

[0429] For example, when the communications device is configured to perform steps, methods, or functions performed by a sensing responder, the interface 902 is configured to receive a sensing measurement setup request frame and to send a sensing measurement setup response frame, where the sensing measurement setup response frame is used to accept or reject the sensing initiator's request. Optionally, the logic circuit 901 is configured to generate a sensing measurement setup response frame.

[0430] In this embodiment of the present application, for descriptions of the sensing measurement setup request frame, the sensing measurement setup response frame, the first measurement setup indication information, the sensing initiator, the sensing responder, etc., please refer to the descriptions in the above-mentioned embodiment 6 of the method. The details will not be described again herein. For specific descriptions of the processor and the transceiver, it can be understood that reference is made to the descriptions of the processing unit and the transceiver unit shown in FIG. The details will not be described again herein.

[0431] It can be understood that the communication device shown in this embodiment of the present application may implement the methods provided in the embodiments of the present application in the form of hardware, or may implement the methods provided in the embodiments of the present application in the form of software, which is not limited in this embodiment of the present application.

[0432] For specific implementations of the embodiment shown in Figure 31, please refer to the above embodiments, and details will not be described here.

[0433] An embodiment of the present application further provides a wireless communication system, including a proxy sensing initiator and a proxy sensing responder, wherein the proxy sensing initiator and the proxy sensing responder may be configured to perform the method in any one of the above-described method embodiments 1 to 3.

[0434] An embodiment of the present application further provides a wireless communication system, including a first communication device and a second communication device, wherein the first communication device and the second communication device may be configured to perform the method in the above-mentioned method embodiment 4 or 5.

[0435] An embodiment of the present application further provides a wireless communication system, which includes a sensing initiator and a sensing responder, and the sensing initiator and the sensing responder may be configured to perform the method in the above-mentioned method embodiment 6.

[0436] Additionally, the present application further provides a computer program, which is used to implement the actions and / or processes performed by the surrogate sensing initiator in the methods provided herein.

[0437] The present application further provides a computer program for use in implementing the actions and / or processes performed by the surrogate sensing responder in the methods provided herein.

[0438] The present application further provides a computer program configured to perform the operations and / or processes performed by the first communication device in the methods provided herein.

[0439] The present application further provides a computer program, which is used to implement the actions and / or processes performed by the second communication device in the methods provided herein.

[0440] The present application further provides a computer program configured to perform the operations and / or processes performed by the sensing initiator in the methods provided herein.

[0441] The present application further provides a computer program configured to perform the operations and / or processes performed by the sensing responder in the methods provided herein.

[0442] The present application further provides a computer-readable storage medium that stores computer code that, when executed on a computer, enables the computer to perform the actions and / or processes performed by the surrogate sensing initiator in the methods provided herein.

[0443] The present application further provides a computer-readable storage medium that stores computer code that, when executed on a computer, enables the computer to perform the actions and / or processes performed by the surrogate sensing responder in the methods provided herein.

[0444] The present application further provides a computer-readable storage medium that stores computer code that, when executed on a computer, enables the computer to perform the actions and / or processes performed by the first communication device in the methods provided herein.

[0445] The present application further provides a computer-readable storage medium that stores computer code that, when executed on a computer, enables the computer to perform the actions and / or processes performed by the second communication device in the methods provided herein.

[0446] The present application further provides a computer-readable storage medium that stores computer code that, when executed on a computer, enables the computer to perform the actions and / or processes performed by the sensing initiator in the methods provided herein.

[0447] The present application further provides a computer-readable storage medium that stores computer code that, when executed on a computer, enables the computer to perform the actions and / or processes performed by the sensing responder in the methods provided herein.

[0448] The present application further provides a computer program product, which includes computer code or a computer program that, when executed on a computer, performs the actions and / or processes performed by the surrogate sensing initiator in the methods provided herein.

[0449] The present application further provides a computer program product, which includes computer code or a computer program that, when executed on a computer, performs the actions and / or processes performed by the surrogate sensing responder in the methods provided herein.

[0450] The present application further provides a computer program product, which includes computer code or a computer program that, when executed on a computer, performs the operations and / or processes performed by the first communications device in the methods provided herein.

[0451] The present application further provides a computer program product, which includes computer code or a computer program that, when executed on a computer, performs the operations and / or processes performed by the second communication device in the methods provided herein.

[0452] The present application further provides a computer program product, which includes computer code or a computer program that, when executed on a computer, performs the actions and / or processes performed by the sensing initiator in the methods provided herein.

[0453] The present application further provides a computer program product, which includes computer code or a computer program that, when executed on a computer, performs the actions and / or processes performed by the sensing responder in the methods provided herein.

[0454] In some embodiments provided in the present application, it should be understood that the disclosed systems, devices, and methods may be realized in other ways. For example, the described device embodiments are merely examples. For example, the division into units is merely a logical division of function, and other divisions may occur in actual implementation. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not implemented. In addition, the shown or described mutual couplings or direct couplings or communication connections may be realized through some interfaces, indirect couplings or communication connections between devices or units, electrical connections, mechanical connections, or other forms of connections.

[0455] The units described as separate parts may or may not be physically separate, and the parts shown as units may or may not be physical units, and may be located in one place or distributed in multiple network units. Some or all of the units may be selected based on actual requirements for achieving the technical effects of the solutions provided in the embodiments of the present application.

[0456] In addition, the functional units in the embodiments of the present application may be integrated into one processing unit, and each of the units may exist physically alone, or two or more units may be integrated into one unit. The integrated unit may be realized in the form of hardware or in the form of a software functional unit.

[0457] When the integrated unit is realized in the form of a software functional unit and sold or used as an independent product, the integrated unit may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present application that essentially or partially contributes to the prior art, or all or part of the technical solution, may be realized in the form of a software product. The computer software product is stored in a readable storage medium and includes several instructions for instructing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method described in the embodiments of the present application. The above-mentioned readable storage medium includes any medium that can store program code, such as a USB flash drive, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0458] The above description is merely a specific implementation form of the present application and is not intended to limit the scope of protection of the present application. Any modifications or replacements that are easily understood by those skilled in the art within the technical scope disclosed in the present application shall fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be subject to the scope of protection of the claims. [Explanation of symbols]

[0459] 10 Transceiver Unit 20 Processing Unit 901 Logic Circuit 902 Interface 1001 processor 1002 Transceiver 1003 memory

Claims

1. An information display method in WLAN sensing, comprising: a step of transmitting a proxy sensing request frame by a proxy sensing initiator, wherein the proxy sensing request frame includes addresses of N sensing responders, and the address of one sensing responder is used to identify one sensing responder, and the proxy sensing request frame further includes role indication information, and the role indication information indicates roles of the N sensing responders in a sensing measurement instance, the roles including any one of the following: a sensing transmitter, a sensing receiver, and a sensing transmitter and a sensing receiver, and N is an integer greater than or equal to 1; receiving a proxy sensing response frame by the proxy sensing initiator; A method comprising:

2. An information display method in WLAN sensing, comprising: receiving a proxy sensing request frame by a proxy sensing responder, the proxy sensing request frame including addresses of N sensing responders, where one sensing responder address is used to identify one sensing responder, the proxy sensing request frame further including role indication information, where the role indication information indicates roles of the N sensing responders in a sensing measurement instance, the roles including any one of the following: sensing transmitter, sensing receiver, and sensing transmitter and sensing receiver, where N is an integer greater than or equal to 1; transmitting a proxy sensing response frame by the proxy sensing responder; A method comprising:

3. The proxy sensing request frame further includes role presence indication information, and the role presence indication information indicates whether the role indication information exists; The method of claim 1 or 2, wherein the role presence indication information is a preset value indicating that the role presence indication information exists.

4. The method of claim 1 , wherein the proxy sensing request frame further includes mandatory role indication information, and the mandatory role indication information indicates whether the N sensing responders are required to satisfy the indication of the role indication information.

5. The method of claim 1 , wherein the proxy sensing response frame includes the role indication information.

6. An information display method in WLAN sensing, comprising: transmitting, by a proxy sensing initiator, a proxy sensing request frame, the proxy sensing request frame including an address of a sensing responder, the proxy sensing request frame further including first indication information, the first indication information indicating whether the sensing responder will participate in one or more of the following sensing measurements: trigger frame (TF) sounding, null data packet announcement (NDPA) sounding, or sensing responder-to-sensing (SR2SR) sounding; receiving a proxy sensing response frame by the proxy sensing initiator; A method comprising:

7. An information display method in WLAN sensing, comprising: receiving, by a proxy sensing responder, a proxy sensing request frame, the proxy sensing request frame including an address of a sensing responder, the proxy sensing request frame further including first indication information, the first indication information indicating whether the sensing responder will participate in one or more of the following sensing measurements: trigger frame (TF) sounding, null data packet announcement (NDPA) sounding, or sensing responder-to-sensing responder (SR2SR) sounding; transmitting a proxy sensing response frame by the proxy sensing responder; A method comprising:

8. the first indication information includes one or more of the following: a first bitmap, a second bitmap, or a third bitmap, where a bit in the first bitmap indicates whether the sensing responder will participate in TF sounding, a bit in the second bitmap indicates whether the sensing responder will participate in NDPA sounding, and a bit in the third bitmap indicates whether the sensing responder will participate in SR2SR sounding; or 8. The method of claim 6 or 7, wherein the first indication information includes a fourth bitmap, M bits in the fourth bitmap correspond to one sensing responder, and the M bits indicate whether the corresponding sensing responder participates in TF sounding, NDPA sounding, or SR2SR sounding.

9. the first display information includes L third bitmaps, where L is an integer equal to or greater than 1; 9. The method of claim 8, wherein one third bitmap corresponds to one SR2SR sounding pattern, and the SR2SR sounding pattern describes a transmitter and a receiver of a sensing physical layer protocol data unit (PPDU) in SR2SR sounding.

10. the first indication information includes one or more of the following corresponding to the sensing responder: a first field, a second field, or a third field, wherein the first field indicates whether the sensing responder corresponding to the first field participates in TF sounding, the second field indicates whether the sensing responder corresponding to the second field participates in NDPA sounding, and the third field indicates whether the sensing responder corresponding to the third field participates in SR2SR sounding; or 8. The method of claim 6 or 7, wherein the first display information includes a fourth field corresponding to the sensing responder, and the fourth field indicates whether the sensing responder corresponding to the fourth field participates in TF sounding, NDPA sounding, or SR2SR sounding.

11. the length of the third field is L bits or more, where L is an integer greater than or equal to 1; a bit in the third field indicates whether the sensing responder corresponding to the third field participates in SR2SR sounding corresponding to L SR2SR sounding patterns, respectively; The method of claim 10 , wherein one SR2SR sounding pattern corresponds to one or more SR2SR soundings, and the SR2SR sounding pattern describes a transmitter and a receiver of a sensing PPDU in the SR2SR sounding.

12. the proxy sensing request frame further includes second indication information, and the second indication information indicates whether the first indication information exists; 12. The method of claim 6, wherein the second indication information is a preset value indicating that the first indication information is present.

13. 13. The method of claim 6, wherein the proxy sensing request frame further includes third indication information, and the third indication information indicates whether the proxy sensing initiator requests to perform SR2SR sounding in the proxy sensing procedure.

14. The method according to claim 9 or 11, wherein the proxy sensing request frame further includes fourth indication information, the fourth indication information indicating the number of SR2SR sounding patterns, and one SR2SR sounding pattern corresponds to one or more SR2SR soundings.

15. The method of claim 14 , wherein the proxy sensing request frame further includes fifth indication information, and the fifth indication information indicates the number of SR2SR soundings corresponding to each SR2SR sounding pattern.

16. An information display method in WLAN sensing, comprising: generating, by a first communication device, a first sensing element, the first sensing element being used by the first communication device to exchange sensing capability information with a second communication device, the first sensing element including a first field, the length of the first field being greater than 4 bits, and the first field indicating a maximum total number of sensing measurement setups that the first communication device can set up with the second communication device; transmitting, by the first communication device, the first sensing element to the second communication device; A method comprising:

17. The method comprises:

17. The method of claim 16, further comprising: receiving, by the first communication device, a second sensing element transmitted by the second communication device, wherein the second sensing element is used by the second communication device to exchange sensing capability information with the first communication device, the second sensing element including a second field, the length of the second field being greater than 4 bits, and the second field indicating a maximum total number of sensing measurement setups that the second communication device can set up with the first communication device.

18. An information display method in WLAN sensing, comprising: receiving, by a second communication device, a first sensing element transmitted by a first communication device, the first sensing element being used by the first communication device to exchange sensing capability information with the second communication device; analyzing, by the second communication device, the first sensing element, wherein the first sensing element includes a first field, the length of the first field is greater than 4 bits, and the first field indicates a maximum total number of sensing measurement setups that the first communication device can set up with the second communication device; A method comprising:

19. The method comprises:

20. The method of claim 18, further comprising the step of transmitting, by the second communication device, a second sensing element to the first communication device, wherein the second sensing element is used by the second communication device to exchange the sensing capability information with the first communication device, the second sensing element including a second field, the length of the second field being greater than 4 bits, and the second field indicating a maximum total number of sensing measurement setups that the second communication device can set up with the first communication device.

20. An information display method in WLAN sensing, comprising: generating, by a first communication device, a first sensing element, the first sensing element being used by the first communication device to exchange sensing capability information with a second communication device, the first sensing element including a first field and a second field, the first field indicating a maximum total number of trigger-based sensing measurement setups that the first communication device can set up with the second communication device, and the second field indicating a maximum total number of non-trigger-based sensing measurement setups that the first communication device can set up with the second communication device; transmitting, by the first communication device, the first sensing element to the second communication device; A method comprising:

21. The method comprises:

21. The method of claim 20, further comprising: receiving, by the first communication device, a second sensing element transmitted by the second communication device, wherein the second sensing element is used by the second communication device to exchange the sensing capability information with the first communication device; a third field included in the second sensing element indicates a maximum total number of trigger-based sensing measurement setups that the second communication device can set up with the first communication device; and a fourth field included in the second sensing element indicates a maximum total number of non-trigger-based sensing measurement setups that the second communication device can set up with the first communication device.

22. An information display method in WLAN sensing, comprising: receiving, by a second communication device, a first sensing element transmitted by a first communication device, the first sensing element being used by the first communication device to exchange sensing capability information with the second communication device; analyzing, by the second communication device, the first sensing element, the first sensing element including a first field and a second field, the first field indicating a maximum total number of trigger-based sensing measurement setups that the first communication device can set up with the second communication device, and the second field indicating a maximum total number of non-trigger-based sensing measurement setups that the first communication device can set up with the second communication device; A method comprising:

23. The method comprises:

23. The method of claim 22, further comprising the step of: transmitting, by the second communication device, a second sensing element to the first communication device; the second sensing element being used by the second communication device to exchange sensing capability information with the first communication device; a third field included in the second sensing element indicating a maximum total number of trigger-based sensing measurement setups that the second communication device can set up with the first communication device; and a fourth field included in the second sensing element indicating a maximum total number of non-trigger-based sensing measurement setups that the second communication device can set up with the first communication device.

24. An information display method in WLAN sensing, comprising: transmitting a sensing measurement setup request frame by a sensing initiator, the sensing measurement setup request frame being used to request setting up a sensing measurement setup with a sensing responder, the sensing measurement setup request frame including first measurement setup indication information, the first measurement setup indication information indicating whether the sensing initiator is capable of setting up another sensing measurement setup; receiving, by the sensing initiator, a sensing measurement setup response frame, wherein the sensing measurement setup response frame is used to accept or reject the request of the sensing initiator; A method comprising:

25. An information display method in WLAN sensing, comprising: receiving, by a sensing responder, a sensing measurement setup request frame, the sensing measurement setup request frame being used to request setting up a sensing measurement setup with the sensing responder, the sensing measurement setup request frame including first measurement setup indication information, the first measurement setup indication information indicating whether a sensing initiator is capable of setting up another sensing measurement setup; transmitting, by the sensing responder, a sensing measurement setup response frame, wherein the sensing measurement setup response frame is used to accept or reject the request of the sensing initiator; A method comprising:

26. 26. The method of claim 24 or 25, wherein the sensing measurement setup response frame includes second measurement setup indication information, and the second measurement setup indication information indicates whether the sensing responder is capable of setting up another sensing measurement setup.

27. A communication device comprising a unit or module configured to carry out the method according to any one of claims 1 to 26.

28. A communication device comprising a processor and a memory, the memory configured to store instructions; 27. A communications device, wherein the processor is configured to execute the instructions such that the method of any one of claims 1 to 26 is performed.

29. A communication device comprising a logic circuit and an interface, said logic circuit coupled to said interface; 27. A communications device, wherein the interface is configured to input data to be processed, the logic circuit processes the data to be processed according to a method of any one of claims 1 to 26 to obtain processed data, and the interface is configured to output the processed data.

30. 13. A wireless communication system comprising a proxy sensing initiator configured to perform the method of claim 1 or claim 11, and a proxy sensing responder configured to perform the method of claim 2 or claim 12, the wireless communication system comprises a first communication device configured to perform the method of any one of claims 16 and 17 and claims 20 and 21, and a second communication device configured to perform the method of any one of claims 18 and 19 and claims 22 and 23; or 26. A wireless communication system, the wireless communication system comprising: a sensing initiator configured to perform the method of claim 24; and a sensing responder configured to perform the method of claim 25.

31. 27. A computer-readable storage medium configured to store a computer program that, when executed, performs the method of any one of claims 1 to 26.

32. 27. A computer program product, the computer program or computer code contained in said computer program product being adapted to perform the method of any one of claims 1 to 26 when run on a computer.

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